diff options
Diffstat (limited to 'drivers/usb/gadget')
56 files changed, 3263 insertions, 1351 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 51ab5fd5d468..dfb51a45496c 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -154,16 +154,25 @@ config USB_LPC32XX config USB_ATMEL_USBA tristate "Atmel USBA" - select USB_GADGET_DUALSPEED depends on AVR32 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 help USBA is the integrated high-speed USB Device controller on the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. +config USB_BCM63XX_UDC + tristate "Broadcom BCM63xx Peripheral Controller" + depends on BCM63XX + help + Many Broadcom BCM63xx chipsets (such as the BCM6328) have a + high speed USB Device Port with support for four fixed endpoints + (plus endpoint zero). + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "bcm63xx_udc". + config USB_FSL_USB2 tristate "Freescale Highspeed USB DR Peripheral Controller" depends on FSL_SOC || ARCH_MXC - select USB_GADGET_DUALSPEED select USB_FSL_MPH_DR_OF if OF help Some of Freescale PowerPC and i.MX processors have a High Speed @@ -179,7 +188,6 @@ config USB_FSL_USB2 config USB_FUSB300 tristate "Faraday FUSB300 USB Peripheral Controller" depends on !PHYS_ADDR_T_64BIT - select USB_GADGET_DUALSPEED help Faraday usb device controller FUSB300 driver @@ -227,7 +235,6 @@ config USB_PXA25X_SMALL config USB_R8A66597 tristate "Renesas R8A66597 USB Peripheral Controller" - select USB_GADGET_DUALSPEED help R8A66597 is a discrete USB host and peripheral controller chip that supports both full and high speed USB 2.0 data transfers. @@ -240,7 +247,6 @@ config USB_R8A66597 config USB_RENESAS_USBHS_UDC tristate 'Renesas USBHS controller' depends on USB_RENESAS_USBHS - select USB_GADGET_DUALSPEED help Renesas USBHS is a discrete USB host and peripheral controller chip that supports both full and high speed USB 2.0 data transfers. @@ -268,7 +274,6 @@ config USB_PXA27X config USB_S3C_HSOTG tristate "S3C HS/OtG USB Device controller" depends on S3C_DEV_USB_HSOTG - select USB_GADGET_DUALSPEED help The Samsung S3C64XX USB2.0 high-speed gadget controller integrated into the S3C64XX series SoC. @@ -305,7 +310,6 @@ config USB_S3C2410_DEBUG config USB_S3C_HSUDC tristate "S3C2416, S3C2443 and S3C2450 USB Device Controller" depends on ARCH_S3C24XX - select USB_GADGET_DUALSPEED help Samsung's S3C2416, S3C2443 and S3C2450 is an ARM9 based SoC integrated with dual speed USB 2.0 device controller. It has @@ -315,7 +319,6 @@ config USB_S3C_HSUDC config USB_MV_UDC tristate "Marvell USB2.0 Device Controller" - select USB_GADGET_DUALSPEED help Marvell Socs (including PXA and MMP series) include a high speed USB2.0 OTG controller, which can be configured as high speed or @@ -338,14 +341,12 @@ config USB_MV_U3D config USB_GADGET_MUSB_HDRC tristate "Inventra HDRC USB Peripheral (TI, ADI, ...)" depends on USB_MUSB_HDRC - select USB_GADGET_DUALSPEED help This OTG-capable silicon IP is used in dual designs including the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin config USB_M66592 tristate "Renesas M66592 USB Peripheral Controller" - select USB_GADGET_DUALSPEED help M66592 is a discrete USB peripheral controller chip that supports both full and high speed USB 2.0 data transfers. @@ -362,7 +363,6 @@ config USB_M66592 config USB_AMD5536UDC tristate "AMD5536 UDC" depends on PCI - select USB_GADGET_DUALSPEED help The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. It is a USB Highspeed DMA capable USB device controller. Beside ep0 @@ -389,7 +389,6 @@ config USB_FSL_QE config USB_NET2272 tristate "PLX NET2272" - select USB_GADGET_DUALSPEED help PLX NET2272 is a USB peripheral controller which supports both full and high speed USB 2.0 data transfers. @@ -413,7 +412,6 @@ config USB_NET2272_DMA config USB_NET2280 tristate "NetChip 228x" depends on PCI - select USB_GADGET_DUALSPEED help NetChip 2280 / 2282 is a PCI based USB peripheral controller which supports both full and high speed USB 2.0 data transfers. @@ -443,7 +441,6 @@ config USB_GOKU config USB_EG20T tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC" depends on PCI - select USB_GADGET_DUALSPEED help This is a USB device driver for EG20T PCH. EG20T PCH is the platform controller hub that is used in Intel's @@ -470,8 +467,6 @@ config USB_EG20T config USB_DUMMY_HCD tristate "Dummy HCD (DEVELOPMENT)" depends on USB=y || (USB=m && USB_GADGET=m) - select USB_GADGET_DUALSPEED - select USB_GADGET_SUPERSPEED help This host controller driver emulates USB, looping all data transfer requests back to a USB "gadget driver" in the same host. The host @@ -496,18 +491,15 @@ config USB_DUMMY_HCD endmenu -# Selected by UDC drivers that support high-speed operation. -config USB_GADGET_DUALSPEED - bool - -# Selected by UDC drivers that support super-speed opperation -config USB_GADGET_SUPERSPEED - bool - depends on USB_GADGET_DUALSPEED - # # USB Gadget Drivers # + +# composite based drivers +config USB_LIBCOMPOSITE + tristate + depends on USB_GADGET + choice tristate "USB Gadget Drivers" default USB_ETH @@ -531,6 +523,7 @@ choice config USB_ZERO tristate "Gadget Zero (DEVELOPMENT)" + select USB_LIBCOMPOSITE help Gadget Zero is a two-configuration device. It either sinks and sources bulk data; or it loops back a configurable number of @@ -564,8 +557,9 @@ config USB_ZERO_HNPTEST one serve as the USB host instead (in the "B-Host" role). config USB_AUDIO - tristate "Audio Gadget (EXPERIMENTAL)" + tristate "Audio Gadget" depends on SND + select USB_LIBCOMPOSITE select SND_PCM help This Gadget Audio driver is compatible with USB Audio Class @@ -594,6 +588,7 @@ config GADGET_UAC1 config USB_ETH tristate "Ethernet Gadget (with CDC Ethernet support)" depends on NET + select USB_LIBCOMPOSITE select CRC32 help This driver implements Ethernet style communication, in one of @@ -629,6 +624,7 @@ config USB_ETH config USB_ETH_RNDIS bool "RNDIS support" depends on USB_ETH + select USB_LIBCOMPOSITE default y help Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol, @@ -647,6 +643,7 @@ config USB_ETH_RNDIS config USB_ETH_EEM bool "Ethernet Emulation Model (EEM) support" depends on USB_ETH + select USB_LIBCOMPOSITE default n help CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM @@ -663,6 +660,7 @@ config USB_ETH_EEM config USB_G_NCM tristate "Network Control Model (NCM) support" depends on NET + select USB_LIBCOMPOSITE select CRC32 help This driver implements USB CDC NCM subclass standard. NCM is @@ -674,8 +672,7 @@ config USB_G_NCM dynamically linked module called "g_ncm". config USB_GADGETFS - tristate "Gadget Filesystem (EXPERIMENTAL)" - depends on EXPERIMENTAL + tristate "Gadget Filesystem" help This driver provides a filesystem based API that lets user mode programs implement a single-configuration USB device, including @@ -683,15 +680,12 @@ config USB_GADGETFS All endpoints, transfer speeds, and transfer types supported by the hardware are available, through read() and write() calls. - Currently, this option is still labelled as EXPERIMENTAL because - of existing race conditions in the underlying in-kernel AIO core. - Say "y" to link the driver statically, or "m" to build a dynamically linked module called "gadgetfs". config USB_FUNCTIONFS - tristate "Function Filesystem (EXPERIMENTAL)" - depends on EXPERIMENTAL + tristate "Function Filesystem" + select USB_LIBCOMPOSITE select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS) help The Function Filesystem (FunctionFS) lets one create USB @@ -755,6 +749,7 @@ config USB_FILE_STORAGE_TEST config USB_MASS_STORAGE tristate "Mass Storage Gadget" depends on BLOCK + select USB_LIBCOMPOSITE help The Mass Storage Gadget acts as a USB Mass Storage disk drive. As its storage repository it can use a regular file or a block @@ -770,6 +765,7 @@ config USB_MASS_STORAGE config USB_GADGET_TARGET tristate "USB Gadget Target Fabric Module" depends on TARGET_CORE + select USB_LIBCOMPOSITE help This fabric is an USB gadget. Two USB protocols are supported that is BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is @@ -779,6 +775,7 @@ config USB_GADGET_TARGET config USB_G_SERIAL tristate "Serial Gadget (with CDC ACM and CDC OBEX support)" + select USB_LIBCOMPOSITE help The Serial Gadget talks to the Linux-USB generic serial driver. This driver supports a CDC-ACM module option, which can be used @@ -797,8 +794,9 @@ config USB_G_SERIAL make MS-Windows work with CDC ACM. config USB_MIDI_GADGET - tristate "MIDI Gadget (EXPERIMENTAL)" - depends on SND && EXPERIMENTAL + tristate "MIDI Gadget" + depends on SND + select USB_LIBCOMPOSITE select SND_RAWMIDI help The MIDI Gadget acts as a USB Audio device, with one MIDI @@ -812,6 +810,7 @@ config USB_MIDI_GADGET config USB_G_PRINTER tristate "Printer Gadget" + select USB_LIBCOMPOSITE help The Printer Gadget channels data between the USB host and a userspace program driving the print engine. The user space @@ -828,6 +827,7 @@ config USB_G_PRINTER config USB_CDC_COMPOSITE tristate "CDC Composite Device (Ethernet and ACM)" depends on NET + select USB_LIBCOMPOSITE help This driver provides two functions in one configuration: a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link. @@ -842,6 +842,7 @@ config USB_CDC_COMPOSITE config USB_G_NOKIA tristate "Nokia composite gadget" depends on PHONET + select USB_LIBCOMPOSITE help The Nokia composite gadget provides support for acm, obex and phonet in only one composite gadget driver. @@ -852,6 +853,7 @@ config USB_G_NOKIA config USB_G_ACM_MS tristate "CDC Composite Device (ACM and mass storage)" depends on BLOCK + select USB_LIBCOMPOSITE help This driver provides two functions in one configuration: a mass storage, and a CDC ACM (serial port) link. @@ -860,9 +862,10 @@ config USB_G_ACM_MS dynamically linked module called "g_acm_ms". config USB_G_MULTI - tristate "Multifunction Composite Gadget (EXPERIMENTAL)" + tristate "Multifunction Composite Gadget" depends on BLOCK && NET select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS + select USB_LIBCOMPOSITE help The Multifunction Composite Gadget provides Ethernet (RNDIS and/or CDC Ethernet), mass storage and ACM serial link @@ -903,6 +906,7 @@ config USB_G_MULTI_CDC config USB_G_HID tristate "HID Gadget" + select USB_LIBCOMPOSITE help The HID gadget driver provides generic emulation of USB Human Interface Devices (HID). @@ -913,8 +917,10 @@ config USB_G_HID Say "y" to link the driver statically, or "m" to build a dynamically linked module called "g_hid". +# Standalone / single function gadgets config USB_G_DBGP tristate "EHCI Debug Device Gadget" + select USB_LIBCOMPOSITE help This gadget emulates an EHCI Debug device. This is useful when you want to interact with an EHCI Debug Port. diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 3fd8cd09d2c1..307be5fa824c 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -4,6 +4,9 @@ ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG obj-$(CONFIG_USB_GADGET) += udc-core.o +obj-$(CONFIG_USB_LIBCOMPOSITE) += libcomposite.o +libcomposite-y := usbstring.o config.o epautoconf.o +libcomposite-y += composite.o obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2272) += net2272.o obj-$(CONFIG_USB_NET2280) += net2280.o @@ -16,6 +19,7 @@ obj-$(CONFIG_USB_OMAP) += omap_udc.o obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o obj-$(CONFIG_USB_AT91) += at91_udc.o obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o +obj-$(CONFIG_USB_BCM63XX_UDC) += bcm63xx_udc.o obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o fsl_usb2_udc-y := fsl_udc_core.o fsl_usb2_udc-$(CONFIG_ARCH_MXC) += fsl_mxc_udc.o diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c index 75b8a691fd00..5a7f289805ff 100644 --- a/drivers/usb/gadget/acm_ms.c +++ b/drivers/usb/gadget/acm_ms.c @@ -15,7 +15,7 @@ */ #include <linux/kernel.h> -#include <linux/utsname.h> +#include <linux/module.h> #include "u_serial.h" @@ -41,15 +41,12 @@ * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" #include "u_serial.c" #include "f_acm.c" #include "f_mass_storage.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, @@ -89,17 +86,11 @@ static const struct usb_descriptor_header *otg_desc[] = { NULL, }; - /* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -157,7 +148,6 @@ static struct usb_configuration acm_ms_config_driver = { static int __init acm_ms_bind(struct usb_composite_dev *cdev) { - int gcnum; struct usb_gadget *gadget = cdev->gadget; int status; void *retp; @@ -174,44 +164,22 @@ static int __init acm_ms_bind(struct usb_composite_dev *cdev) goto fail0; } - /* set bcdDevice */ - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) { - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - } else { - WARNING(cdev, "controller '%s' not recognized; trying %s\n", - gadget->name, - acm_ms_config_driver.label); - device_desc.bcdDevice = - cpu_to_le16(0x0300 | 0x0099); - } - /* * Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); - if (status < 0) - goto fail1; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail1; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register our configuration */ status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config); if (status < 0) goto fail1; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", DRIVER_DESC); fsg_common_put(&fsg_common); @@ -232,11 +200,12 @@ static int __exit acm_ms_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver acm_ms_driver = { +static __refdata struct usb_composite_driver acm_ms_driver = { .name = "g_acm_ms", .dev = &device_desc, .max_speed = USB_SPEED_SUPER, .strings = dev_strings, + .bind = acm_ms_bind, .unbind = __exit_p(acm_ms_unbind), }; @@ -246,7 +215,7 @@ MODULE_LICENSE("GPL v2"); static int __init init(void) { - return usb_composite_probe(&acm_ms_driver, acm_ms_bind); + return usb_composite_probe(&acm_ms_driver); } module_init(init); diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 187d21181cd5..fc0ec5e0d58e 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -1401,7 +1401,7 @@ static int udc_wakeup(struct usb_gadget *gadget) } static int amd5536_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int amd5536_stop(struct usb_gadget_driver *driver); /* gadget operations */ static const struct usb_gadget_ops udc_ops = { @@ -1914,7 +1914,7 @@ static int setup_ep0(struct udc *dev) /* Called by gadget driver to register itself */ static int amd5536_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct udc *dev = udc; int retval; @@ -1932,7 +1932,7 @@ static int amd5536_start(struct usb_gadget_driver *driver, dev->driver = driver; dev->gadget.dev.driver = &driver->driver; - retval = bind(&dev->gadget); + retval = bind(&dev->gadget, driver); /* Some gadget drivers use both ep0 directions. * NOTE: to gadget driver, ep0 is just one endpoint... diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 1e35963bd4ed..89d90b5fb787 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -469,7 +469,7 @@ static int at91_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct at91_ep *ep = container_of(_ep, struct at91_ep, ep); - struct at91_udc *udc = ep->udc; + struct at91_udc *udc; u16 maxpacket; u32 tmp; unsigned long flags; @@ -483,6 +483,7 @@ static int at91_ep_enable(struct usb_ep *_ep, return -EINVAL; } + udc = ep->udc; if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) { DBG("bogus device state\n"); return -ESHUTDOWN; @@ -1699,7 +1700,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev) int retval; struct resource *res; - if (!dev->platform_data) { + if (!dev->platform_data && !pdev->dev.of_node) { /* small (so we copy it) but critical! */ DBG("missing platform_data\n"); return -ENODEV; diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c index 98899244860e..231b0efe8fdc 100644 --- a/drivers/usb/gadget/audio.c +++ b/drivers/usb/gadget/audio.c @@ -12,35 +12,21 @@ /* #define VERBOSE_DEBUG */ #include <linux/kernel.h> -#include <linux/utsname.h> +#include <linux/module.h> +#include <linux/usb/composite.h> +#include "gadget_chips.h" #define DRIVER_DESC "Linux USB Audio Gadget" #define DRIVER_VERSION "Feb 2, 2012" -/*-------------------------------------------------------------------------*/ - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" +USB_GADGET_COMPOSITE_OPTIONS(); /* string IDs are assigned dynamically */ -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -149,39 +135,18 @@ static struct usb_configuration audio_config_driver = { static int __init audio_bind(struct usb_composite_dev *cdev) { - int gcnum; int status; - gcnum = usb_gadget_controller_number(cdev->gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - else { - ERROR(cdev, "controller '%s' not recognized; trying %s\n", - cdev->gadget->name, - audio_config_driver.label); - device_desc.bcdDevice = - __constant_cpu_to_le16(0x0300 | 0x0099); - } - - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - cdev->gadget->name); - status = usb_string_id(cdev); - if (status < 0) - goto fail; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; status = usb_add_config(cdev, &audio_config_driver, audio_do_config); if (status < 0) goto fail; + usb_composite_overwrite_options(cdev, &coverwrite); INFO(cdev, "%s, version: %s\n", DRIVER_DESC, DRIVER_VERSION); return 0; @@ -198,17 +163,18 @@ static int __exit audio_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver audio_driver = { +static __refdata struct usb_composite_driver audio_driver = { .name = "g_audio", .dev = &device_desc, .strings = audio_strings, .max_speed = USB_SPEED_HIGH, + .bind = audio_bind, .unbind = __exit_p(audio_unbind), }; static int __init init(void) { - return usb_composite_probe(&audio_driver, audio_bind); + return usb_composite_probe(&audio_driver); } module_init(init); diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c new file mode 100644 index 000000000000..9ca792224cd4 --- /dev/null +++ b/drivers/usb/gadget/bcm63xx_udc.c @@ -0,0 +1,2464 @@ +/* + * bcm63xx_udc.c -- BCM63xx UDC high/full speed USB device controller + * + * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com> + * Copyright (C) 2012 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/bitops.h> +#include <linux/bug.h> +#include <linux/clk.h> +#include <linux/compiler.h> +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/kconfig.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/seq_file.h> +#include <linux/slab.h> +#include <linux/timer.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <linux/workqueue.h> + +#include <bcm63xx_cpu.h> +#include <bcm63xx_iudma.h> +#include <bcm63xx_dev_usb_usbd.h> +#include <bcm63xx_io.h> +#include <bcm63xx_regs.h> + +#define DRV_MODULE_NAME "bcm63xx_udc" + +static const char bcm63xx_ep0name[] = "ep0"; +static const char *const bcm63xx_ep_name[] = { + bcm63xx_ep0name, + "ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int", +}; + +static bool use_fullspeed; +module_param(use_fullspeed, bool, S_IRUGO); +MODULE_PARM_DESC(use_fullspeed, "true for fullspeed only"); + +/* + * RX IRQ coalescing options: + * + * false (default) - one IRQ per DATAx packet. Slow but reliable. The + * driver is able to pass the "testusb" suite and recover from conditions like: + * + * 1) Device queues up a 2048-byte RX IUDMA transaction on an OUT bulk ep + * 2) Host sends 512 bytes of data + * 3) Host decides to reconfigure the device and sends SET_INTERFACE + * 4) Device shuts down the endpoint and cancels the RX transaction + * + * true - one IRQ per transfer, for transfers <= 2048B. Generates + * considerably fewer IRQs, but error recovery is less robust. Does not + * reliably pass "testusb". + * + * TX always uses coalescing, because we can cancel partially complete TX + * transfers by repeatedly flushing the FIFO. The hardware doesn't allow + * this on RX. + */ +static bool irq_coalesce; +module_param(irq_coalesce, bool, S_IRUGO); +MODULE_PARM_DESC(irq_coalesce, "take one IRQ per RX transfer"); + +#define BCM63XX_NUM_EP 5 +#define BCM63XX_NUM_IUDMA 6 +#define BCM63XX_NUM_FIFO_PAIRS 3 + +#define IUDMA_RESET_TIMEOUT_US 10000 + +#define IUDMA_EP0_RXCHAN 0 +#define IUDMA_EP0_TXCHAN 1 + +#define IUDMA_MAX_FRAGMENT 2048 +#define BCM63XX_MAX_CTRL_PKT 64 + +#define BCMEP_CTRL 0x00 +#define BCMEP_ISOC 0x01 +#define BCMEP_BULK 0x02 +#define BCMEP_INTR 0x03 + +#define BCMEP_OUT 0x00 +#define BCMEP_IN 0x01 + +#define BCM63XX_SPD_FULL 1 +#define BCM63XX_SPD_HIGH 0 + +#define IUDMA_DMAC_OFFSET 0x200 +#define IUDMA_DMAS_OFFSET 0x400 + +enum bcm63xx_ep0_state { + EP0_REQUEUE, + EP0_IDLE, + EP0_IN_DATA_PHASE_SETUP, + EP0_IN_DATA_PHASE_COMPLETE, + EP0_OUT_DATA_PHASE_SETUP, + EP0_OUT_DATA_PHASE_COMPLETE, + EP0_OUT_STATUS_PHASE, + EP0_IN_FAKE_STATUS_PHASE, + EP0_SHUTDOWN, +}; + +static const char __maybe_unused bcm63xx_ep0_state_names[][32] = { + "REQUEUE", + "IDLE", + "IN_DATA_PHASE_SETUP", + "IN_DATA_PHASE_COMPLETE", + "OUT_DATA_PHASE_SETUP", + "OUT_DATA_PHASE_COMPLETE", + "OUT_STATUS_PHASE", + "IN_FAKE_STATUS_PHASE", + "SHUTDOWN", +}; + +/** + * struct iudma_ch_cfg - Static configuration for an IUDMA channel. + * @ep_num: USB endpoint number. + * @n_bds: Number of buffer descriptors in the ring. + * @ep_type: Endpoint type (control, bulk, interrupt). + * @dir: Direction (in, out). + * @n_fifo_slots: Number of FIFO entries to allocate for this channel. + * @max_pkt_hs: Maximum packet size in high speed mode. + * @max_pkt_fs: Maximum packet size in full speed mode. + */ +struct iudma_ch_cfg { + int ep_num; + int n_bds; + int ep_type; + int dir; + int n_fifo_slots; + int max_pkt_hs; + int max_pkt_fs; +}; + +static const struct iudma_ch_cfg iudma_defaults[] = { + + /* This controller was designed to support a CDC/RNDIS application. + It may be possible to reconfigure some of the endpoints, but + the hardware limitations (FIFO sizing and number of DMA channels) + may significantly impact flexibility and/or stability. Change + these values at your own risk. + + ep_num ep_type n_fifo_slots max_pkt_fs + idx | n_bds | dir | max_pkt_hs | + | | | | | | | | */ + [0] = { -1, 4, BCMEP_CTRL, BCMEP_OUT, 32, 64, 64 }, + [1] = { 0, 4, BCMEP_CTRL, BCMEP_OUT, 32, 64, 64 }, + [2] = { 2, 16, BCMEP_BULK, BCMEP_OUT, 128, 512, 64 }, + [3] = { 1, 16, BCMEP_BULK, BCMEP_IN, 128, 512, 64 }, + [4] = { 4, 4, BCMEP_INTR, BCMEP_OUT, 32, 64, 64 }, + [5] = { 3, 4, BCMEP_INTR, BCMEP_IN, 32, 64, 64 }, +}; + +struct bcm63xx_udc; + +/** + * struct iudma_ch - Represents the current state of a single IUDMA channel. + * @ch_idx: IUDMA channel index (0 to BCM63XX_NUM_IUDMA-1). + * @ep_num: USB endpoint number. -1 for ep0 RX. + * @enabled: Whether bcm63xx_ep_enable() has been called. + * @max_pkt: "Chunk size" on the USB interface. Based on interface speed. + * @is_tx: true for TX, false for RX. + * @bep: Pointer to the associated endpoint. NULL for ep0 RX. + * @udc: Reference to the device controller. + * @read_bd: Next buffer descriptor to reap from the hardware. + * @write_bd: Next BD available for a new packet. + * @end_bd: Points to the final BD in the ring. + * @n_bds_used: Number of BD entries currently occupied. + * @bd_ring: Base pointer to the BD ring. + * @bd_ring_dma: Physical (DMA) address of bd_ring. + * @n_bds: Total number of BDs in the ring. + * + * ep0 has two IUDMA channels (IUDMA_EP0_RXCHAN and IUDMA_EP0_TXCHAN), as it is + * bidirectional. The "struct usb_ep" associated with ep0 is for TX (IN) + * only. + * + * Each bulk/intr endpoint has a single IUDMA channel and a single + * struct usb_ep. + */ +struct iudma_ch { + unsigned int ch_idx; + int ep_num; + bool enabled; + int max_pkt; + bool is_tx; + struct bcm63xx_ep *bep; + struct bcm63xx_udc *udc; + + struct bcm_enet_desc *read_bd; + struct bcm_enet_desc *write_bd; + struct bcm_enet_desc *end_bd; + int n_bds_used; + + struct bcm_enet_desc *bd_ring; + dma_addr_t bd_ring_dma; + unsigned int n_bds; +}; + +/** + * struct bcm63xx_ep - Internal (driver) state of a single endpoint. + * @ep_num: USB endpoint number. + * @iudma: Pointer to IUDMA channel state. + * @ep: USB gadget layer representation of the EP. + * @udc: Reference to the device controller. + * @queue: Linked list of outstanding requests for this EP. + * @halted: 1 if the EP is stalled; 0 otherwise. + */ +struct bcm63xx_ep { + unsigned int ep_num; + struct iudma_ch *iudma; + struct usb_ep ep; + struct bcm63xx_udc *udc; + struct list_head queue; + unsigned halted:1; +}; + +/** + * struct bcm63xx_req - Internal (driver) state of a single request. + * @queue: Links back to the EP's request list. + * @req: USB gadget layer representation of the request. + * @offset: Current byte offset into the data buffer (next byte to queue). + * @bd_bytes: Number of data bytes in outstanding BD entries. + * @iudma: IUDMA channel used for the request. + */ +struct bcm63xx_req { + struct list_head queue; /* ep's requests */ + struct usb_request req; + unsigned int offset; + unsigned int bd_bytes; + struct iudma_ch *iudma; +}; + +/** + * struct bcm63xx_udc - Driver/hardware private context. + * @lock: Spinlock to mediate access to this struct, and (most) HW regs. + * @dev: Generic Linux device structure. + * @pd: Platform data (board/port info). + * @usbd_clk: Clock descriptor for the USB device block. + * @usbh_clk: Clock descriptor for the USB host block. + * @gadget: USB slave device. + * @driver: Driver for USB slave devices. + * @usbd_regs: Base address of the USBD/USB20D block. + * @iudma_regs: Base address of the USBD's associated IUDMA block. + * @bep: Array of endpoints, including ep0. + * @iudma: Array of all IUDMA channels used by this controller. + * @cfg: USB configuration number, from SET_CONFIGURATION wValue. + * @iface: USB interface number, from SET_INTERFACE wIndex. + * @alt_iface: USB alt interface number, from SET_INTERFACE wValue. + * @ep0_ctrl_req: Request object for bcm63xx_udc-initiated ep0 transactions. + * @ep0_ctrl_buf: Data buffer for ep0_ctrl_req. + * @ep0state: Current state of the ep0 state machine. + * @ep0_wq: Workqueue struct used to wake up the ep0 state machine. + * @wedgemap: Bitmap of wedged endpoints. + * @ep0_req_reset: USB reset is pending. + * @ep0_req_set_cfg: Need to spoof a SET_CONFIGURATION packet. + * @ep0_req_set_iface: Need to spoof a SET_INTERFACE packet. + * @ep0_req_shutdown: Driver is shutting down; requesting ep0 to halt activity. + * @ep0_req_completed: ep0 request has completed; worker has not seen it yet. + * @ep0_reply: Pending reply from gadget driver. + * @ep0_request: Outstanding ep0 request. + * @debugfs_root: debugfs directory: /sys/kernel/debug/<DRV_MODULE_NAME>. + * @debugfs_usbd: debugfs file "usbd" for controller state. + * @debugfs_iudma: debugfs file "usbd" for IUDMA state. + */ +struct bcm63xx_udc { + spinlock_t lock; + + struct device *dev; + struct bcm63xx_usbd_platform_data *pd; + struct clk *usbd_clk; + struct clk *usbh_clk; + + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + + void __iomem *usbd_regs; + void __iomem *iudma_regs; + + struct bcm63xx_ep bep[BCM63XX_NUM_EP]; + struct iudma_ch iudma[BCM63XX_NUM_IUDMA]; + + int cfg; + int iface; + int alt_iface; + + struct bcm63xx_req ep0_ctrl_req; + u8 *ep0_ctrl_buf; + + int ep0state; + struct work_struct ep0_wq; + + unsigned long wedgemap; + + unsigned ep0_req_reset:1; + unsigned ep0_req_set_cfg:1; + unsigned ep0_req_set_iface:1; + unsigned ep0_req_shutdown:1; + + unsigned ep0_req_completed:1; + struct usb_request *ep0_reply; + struct usb_request *ep0_request; + + struct dentry *debugfs_root; + struct dentry *debugfs_usbd; + struct dentry *debugfs_iudma; +}; + +static const struct usb_ep_ops bcm63xx_udc_ep_ops; + +/*********************************************************************** + * Convenience functions + ***********************************************************************/ + +static inline struct bcm63xx_udc *gadget_to_udc(struct usb_gadget *g) +{ + return container_of(g, struct bcm63xx_udc, gadget); +} + +static inline struct bcm63xx_ep *our_ep(struct usb_ep *ep) +{ + return container_of(ep, struct bcm63xx_ep, ep); +} + +static inline struct bcm63xx_req *our_req(struct usb_request *req) +{ + return container_of(req, struct bcm63xx_req, req); +} + +static inline u32 usbd_readl(struct bcm63xx_udc *udc, u32 off) +{ + return bcm_readl(udc->usbd_regs + off); +} + +static inline void usbd_writel(struct bcm63xx_udc *udc, u32 val, u32 off) +{ + bcm_writel(val, udc->usbd_regs + off); +} + +static inline u32 usb_dma_readl(struct bcm63xx_udc *udc, u32 off) +{ + return bcm_readl(udc->iudma_regs + off); +} + +static inline void usb_dma_writel(struct bcm63xx_udc *udc, u32 val, u32 off) +{ + bcm_writel(val, udc->iudma_regs + off); +} + +static inline u32 usb_dmac_readl(struct bcm63xx_udc *udc, u32 off) +{ + return bcm_readl(udc->iudma_regs + IUDMA_DMAC_OFFSET + off); +} + +static inline void usb_dmac_writel(struct bcm63xx_udc *udc, u32 val, u32 off) +{ + bcm_writel(val, udc->iudma_regs + IUDMA_DMAC_OFFSET + off); +} + +static inline u32 usb_dmas_readl(struct bcm63xx_udc *udc, u32 off) +{ + return bcm_readl(udc->iudma_regs + IUDMA_DMAS_OFFSET + off); +} + +static inline void usb_dmas_writel(struct bcm63xx_udc *udc, u32 val, u32 off) +{ + bcm_writel(val, udc->iudma_regs + IUDMA_DMAS_OFFSET + off); +} + +static inline void set_clocks(struct bcm63xx_udc *udc, bool is_enabled) +{ + if (is_enabled) { + clk_enable(udc->usbh_clk); + clk_enable(udc->usbd_clk); + udelay(10); + } else { + clk_disable(udc->usbd_clk); + clk_disable(udc->usbh_clk); + } +} + +/*********************************************************************** + * Low-level IUDMA / FIFO operations + ***********************************************************************/ + +/** + * bcm63xx_ep_dma_select - Helper function to set up the init_sel signal. + * @udc: Reference to the device controller. + * @idx: Desired init_sel value. + * + * The "init_sel" signal is used as a selection index for both endpoints + * and IUDMA channels. Since these do not map 1:1, the use of this signal + * depends on the context. + */ +static void bcm63xx_ep_dma_select(struct bcm63xx_udc *udc, int idx) +{ + u32 val = usbd_readl(udc, USBD_CONTROL_REG); + + val &= ~USBD_CONTROL_INIT_SEL_MASK; + val |= idx << USBD_CONTROL_INIT_SEL_SHIFT; + usbd_writel(udc, val, USBD_CONTROL_REG); +} + +/** + * bcm63xx_set_stall - Enable/disable stall on one endpoint. + * @udc: Reference to the device controller. + * @bep: Endpoint on which to operate. + * @is_stalled: true to enable stall, false to disable. + * + * See notes in bcm63xx_update_wedge() regarding automatic clearing of + * halt/stall conditions. + */ +static void bcm63xx_set_stall(struct bcm63xx_udc *udc, struct bcm63xx_ep *bep, + bool is_stalled) +{ + u32 val; + + val = USBD_STALL_UPDATE_MASK | + (is_stalled ? USBD_STALL_ENABLE_MASK : 0) | + (bep->ep_num << USBD_STALL_EPNUM_SHIFT); + usbd_writel(udc, val, USBD_STALL_REG); +} + +/** + * bcm63xx_fifo_setup - (Re)initialize FIFO boundaries and settings. + * @udc: Reference to the device controller. + * + * These parameters depend on the USB link speed. Settings are + * per-IUDMA-channel-pair. + */ +static void bcm63xx_fifo_setup(struct bcm63xx_udc *udc) +{ + int is_hs = udc->gadget.speed == USB_SPEED_HIGH; + u32 i, val, rx_fifo_slot, tx_fifo_slot; + + /* set up FIFO boundaries and packet sizes; this is done in pairs */ + rx_fifo_slot = tx_fifo_slot = 0; + for (i = 0; i < BCM63XX_NUM_IUDMA; i += 2) { + const struct iudma_ch_cfg *rx_cfg = &iudma_defaults[i]; + const struct iudma_ch_cfg *tx_cfg = &iudma_defaults[i + 1]; + + bcm63xx_ep_dma_select(udc, i >> 1); + + val = (rx_fifo_slot << USBD_RXFIFO_CONFIG_START_SHIFT) | + ((rx_fifo_slot + rx_cfg->n_fifo_slots - 1) << + USBD_RXFIFO_CONFIG_END_SHIFT); + rx_fifo_slot += rx_cfg->n_fifo_slots; + usbd_writel(udc, val, USBD_RXFIFO_CONFIG_REG); + usbd_writel(udc, + is_hs ? rx_cfg->max_pkt_hs : rx_cfg->max_pkt_fs, + USBD_RXFIFO_EPSIZE_REG); + + val = (tx_fifo_slot << USBD_TXFIFO_CONFIG_START_SHIFT) | + ((tx_fifo_slot + tx_cfg->n_fifo_slots - 1) << + USBD_TXFIFO_CONFIG_END_SHIFT); + tx_fifo_slot += tx_cfg->n_fifo_slots; + usbd_writel(udc, val, USBD_TXFIFO_CONFIG_REG); + usbd_writel(udc, + is_hs ? tx_cfg->max_pkt_hs : tx_cfg->max_pkt_fs, + USBD_TXFIFO_EPSIZE_REG); + + usbd_readl(udc, USBD_TXFIFO_EPSIZE_REG); + } +} + +/** + * bcm63xx_fifo_reset_ep - Flush a single endpoint's FIFO. + * @udc: Reference to the device controller. + * @ep_num: Endpoint number. + */ +static void bcm63xx_fifo_reset_ep(struct bcm63xx_udc *udc, int ep_num) +{ + u32 val; + + bcm63xx_ep_dma_select(udc, ep_num); + + val = usbd_readl(udc, USBD_CONTROL_REG); + val |= USBD_CONTROL_FIFO_RESET_MASK; + usbd_writel(udc, val, USBD_CONTROL_REG); + usbd_readl(udc, USBD_CONTROL_REG); +} + +/** + * bcm63xx_fifo_reset - Flush all hardware FIFOs. + * @udc: Reference to the device controller. + */ +static void bcm63xx_fifo_reset(struct bcm63xx_udc *udc) +{ + int i; + + for (i = 0; i < BCM63XX_NUM_FIFO_PAIRS; i++) + bcm63xx_fifo_reset_ep(udc, i); +} + +/** + * bcm63xx_ep_init - Initial (one-time) endpoint initialization. + * @udc: Reference to the device controller. + */ +static void bcm63xx_ep_init(struct bcm63xx_udc *udc) +{ + u32 i, val; + + for (i = 0; i < BCM63XX_NUM_IUDMA; i++) { + const struct iudma_ch_cfg *cfg = &iudma_defaults[i]; + + if (cfg->ep_num < 0) + continue; + + bcm63xx_ep_dma_select(udc, cfg->ep_num); + val = (cfg->ep_type << USBD_EPNUM_TYPEMAP_TYPE_SHIFT) | + ((i >> 1) << USBD_EPNUM_TYPEMAP_DMA_CH_SHIFT); + usbd_writel(udc, val, USBD_EPNUM_TYPEMAP_REG); + } +} + +/** + * bcm63xx_ep_setup - Configure per-endpoint settings. + * @udc: Reference to the device controller. + * + * This needs to be rerun if the speed/cfg/intf/altintf changes. + */ +static void bcm63xx_ep_setup(struct bcm63xx_udc *udc) +{ + u32 val, i; + + usbd_writel(udc, USBD_CSR_SETUPADDR_DEF, USBD_CSR_SETUPADDR_REG); + + for (i = 0; i < BCM63XX_NUM_IUDMA; i++) { + const struct iudma_ch_cfg *cfg = &iudma_defaults[i]; + int max_pkt = udc->gadget.speed == USB_SPEED_HIGH ? + cfg->max_pkt_hs : cfg->max_pkt_fs; + int idx = cfg->ep_num; + + udc->iudma[i].max_pkt = max_pkt; + + if (idx < 0) + continue; + udc->bep[idx].ep.maxpacket = max_pkt; + + val = (idx << USBD_CSR_EP_LOG_SHIFT) | + (cfg->dir << USBD_CSR_EP_DIR_SHIFT) | + (cfg->ep_type << USBD_CSR_EP_TYPE_SHIFT) | + (udc->cfg << USBD_CSR_EP_CFG_SHIFT) | + (udc->iface << USBD_CSR_EP_IFACE_SHIFT) | + (udc->alt_iface << USBD_CSR_EP_ALTIFACE_SHIFT) | + (max_pkt << USBD_CSR_EP_MAXPKT_SHIFT); + usbd_writel(udc, val, USBD_CSR_EP_REG(idx)); + } +} + +/** + * iudma_write - Queue a single IUDMA transaction. + * @udc: Reference to the device controller. + * @iudma: IUDMA channel to use. + * @breq: Request containing the transaction data. + * + * For RX IUDMA, this will queue a single buffer descriptor, as RX IUDMA + * does not honor SOP/EOP so the handling of multiple buffers is ambiguous. + * So iudma_write() may be called several times to fulfill a single + * usb_request. + * + * For TX IUDMA, this can queue multiple buffer descriptors if needed. + */ +static void iudma_write(struct bcm63xx_udc *udc, struct iudma_ch *iudma, + struct bcm63xx_req *breq) +{ + int first_bd = 1, last_bd = 0, extra_zero_pkt = 0; + unsigned int bytes_left = breq->req.length - breq->offset; + const int max_bd_bytes = !irq_coalesce && !iudma->is_tx ? + iudma->max_pkt : IUDMA_MAX_FRAGMENT; + + iudma->n_bds_used = 0; + breq->bd_bytes = 0; + breq->iudma = iudma; + + if ((bytes_left % iudma->max_pkt == 0) && bytes_left && breq->req.zero) + extra_zero_pkt = 1; + + do { + struct bcm_enet_desc *d = iudma->write_bd; + u32 dmaflags = 0; + unsigned int n_bytes; + + if (d == iudma->end_bd) { + dmaflags |= DMADESC_WRAP_MASK; + iudma->write_bd = iudma->bd_ring; + } else { + iudma->write_bd++; + } + iudma->n_bds_used++; + + n_bytes = min_t(int, bytes_left, max_bd_bytes); + if (n_bytes) + dmaflags |= n_bytes << DMADESC_LENGTH_SHIFT; + else + dmaflags |= (1 << DMADESC_LENGTH_SHIFT) | + DMADESC_USB_ZERO_MASK; + + dmaflags |= DMADESC_OWNER_MASK; + if (first_bd) { + dmaflags |= DMADESC_SOP_MASK; + first_bd = 0; + } + + /* + * extra_zero_pkt forces one more iteration through the loop + * after all data is queued up, to send the zero packet + */ + if (extra_zero_pkt && !bytes_left) + extra_zero_pkt = 0; + + if (!iudma->is_tx || iudma->n_bds_used == iudma->n_bds || + (n_bytes == bytes_left && !extra_zero_pkt)) { + last_bd = 1; + dmaflags |= DMADESC_EOP_MASK; + } + + d->address = breq->req.dma + breq->offset; + mb(); + d->len_stat = dmaflags; + + breq->offset += n_bytes; + breq->bd_bytes += n_bytes; + bytes_left -= n_bytes; + } while (!last_bd); + + usb_dmac_writel(udc, ENETDMAC_CHANCFG_EN_MASK, + ENETDMAC_CHANCFG_REG(iudma->ch_idx)); +} + +/** + * iudma_read - Check for IUDMA buffer completion. + * @udc: Reference to the device controller. + * @iudma: IUDMA channel to use. + * + * This checks to see if ALL of the outstanding BDs on the DMA channel + * have been filled. If so, it returns the actual transfer length; + * otherwise it returns -EBUSY. + */ +static int iudma_read(struct bcm63xx_udc *udc, struct iudma_ch *iudma) +{ + int i, actual_len = 0; + struct bcm_enet_desc *d = iudma->read_bd; + + if (!iudma->n_bds_used) + return -EINVAL; + + for (i = 0; i < iudma->n_bds_used; i++) { + u32 dmaflags; + + dmaflags = d->len_stat; + + if (dmaflags & DMADESC_OWNER_MASK) + return -EBUSY; + + actual_len += (dmaflags & DMADESC_LENGTH_MASK) >> + DMADESC_LENGTH_SHIFT; + if (d == iudma->end_bd) + d = iudma->bd_ring; + else + d++; + } + + iudma->read_bd = d; + iudma->n_bds_used = 0; + return actual_len; +} + +/** + * iudma_reset_channel - Stop DMA on a single channel. + * @udc: Reference to the device controller. + * @iudma: IUDMA channel to reset. + */ +static void iudma_reset_channel(struct bcm63xx_udc *udc, struct iudma_ch *iudma) +{ + int timeout = IUDMA_RESET_TIMEOUT_US; + struct bcm_enet_desc *d; + int ch_idx = iudma->ch_idx; + + if (!iudma->is_tx) + bcm63xx_fifo_reset_ep(udc, max(0, iudma->ep_num)); + + /* stop DMA, then wait for the hardware to wrap up */ + usb_dmac_writel(udc, 0, ENETDMAC_CHANCFG_REG(ch_idx)); + + while (usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)) & + ENETDMAC_CHANCFG_EN_MASK) { + udelay(1); + + /* repeatedly flush the FIFO data until the BD completes */ + if (iudma->is_tx && iudma->ep_num >= 0) + bcm63xx_fifo_reset_ep(udc, iudma->ep_num); + + if (!timeout--) { + dev_err(udc->dev, "can't reset IUDMA channel %d\n", + ch_idx); + break; + } + if (timeout == IUDMA_RESET_TIMEOUT_US / 2) { + dev_warn(udc->dev, "forcibly halting IUDMA channel %d\n", + ch_idx); + usb_dmac_writel(udc, ENETDMAC_CHANCFG_BUFHALT_MASK, + ENETDMAC_CHANCFG_REG(ch_idx)); + } + } + usb_dmac_writel(udc, ~0, ENETDMAC_IR_REG(ch_idx)); + + /* don't leave "live" HW-owned entries for the next guy to step on */ + for (d = iudma->bd_ring; d <= iudma->end_bd; d++) + d->len_stat = 0; + mb(); + + iudma->read_bd = iudma->write_bd = iudma->bd_ring; + iudma->n_bds_used = 0; + + /* set up IRQs, UBUS burst size, and BD base for this channel */ + usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK, + ENETDMAC_IRMASK_REG(ch_idx)); + usb_dmac_writel(udc, 8, ENETDMAC_MAXBURST_REG(ch_idx)); + + usb_dmas_writel(udc, iudma->bd_ring_dma, ENETDMAS_RSTART_REG(ch_idx)); + usb_dmas_writel(udc, 0, ENETDMAS_SRAM2_REG(ch_idx)); +} + +/** + * iudma_init_channel - One-time IUDMA channel initialization. + * @udc: Reference to the device controller. + * @ch_idx: Channel to initialize. + */ +static int iudma_init_channel(struct bcm63xx_udc *udc, unsigned int ch_idx) +{ + struct iudma_ch *iudma = &udc->iudma[ch_idx]; + const struct iudma_ch_cfg *cfg = &iudma_defaults[ch_idx]; + unsigned int n_bds = cfg->n_bds; + struct bcm63xx_ep *bep = NULL; + + iudma->ep_num = cfg->ep_num; + iudma->ch_idx = ch_idx; + iudma->is_tx = !!(ch_idx & 0x01); + if (iudma->ep_num >= 0) { + bep = &udc->bep[iudma->ep_num]; + bep->iudma = iudma; + INIT_LIST_HEAD(&bep->queue); + } + + iudma->bep = bep; + iudma->udc = udc; + + /* ep0 is always active; others are controlled by the gadget driver */ + if (iudma->ep_num <= 0) + iudma->enabled = true; + + iudma->n_bds = n_bds; + iudma->bd_ring = dmam_alloc_coherent(udc->dev, + n_bds * sizeof(struct bcm_enet_desc), + &iudma->bd_ring_dma, GFP_KERNEL); + if (!iudma->bd_ring) + return -ENOMEM; + iudma->end_bd = &iudma->bd_ring[n_bds - 1]; + + return 0; +} + +/** + * iudma_init - One-time initialization of all IUDMA channels. + * @udc: Reference to the device controller. + * + * Enable DMA, flush channels, and enable global IUDMA IRQs. + */ +static int iudma_init(struct bcm63xx_udc *udc) +{ + int i, rc; + + usb_dma_writel(udc, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG); + + for (i = 0; i < BCM63XX_NUM_IUDMA; i++) { + rc = iudma_init_channel(udc, i); + if (rc) + return rc; + iudma_reset_channel(udc, &udc->iudma[i]); + } + + usb_dma_writel(udc, BIT(BCM63XX_NUM_IUDMA)-1, ENETDMA_GLB_IRQMASK_REG); + return 0; +} + +/** + * iudma_uninit - Uninitialize IUDMA channels. + * @udc: Reference to the device controller. + * + * Kill global IUDMA IRQs, flush channels, and kill DMA. + */ +static void iudma_uninit(struct bcm63xx_udc *udc) +{ + int i; + + usb_dma_writel(udc, 0, ENETDMA_GLB_IRQMASK_REG); + + for (i = 0; i < BCM63XX_NUM_IUDMA; i++) + iudma_reset_channel(udc, &udc->iudma[i]); + + usb_dma_writel(udc, 0, ENETDMA_CFG_REG); +} + +/*********************************************************************** + * Other low-level USBD operations + ***********************************************************************/ + +/** + * bcm63xx_set_ctrl_irqs - Mask/unmask control path interrupts. + * @udc: Reference to the device controller. + * @enable_irqs: true to enable, false to disable. + */ +static void bcm63xx_set_ctrl_irqs(struct bcm63xx_udc *udc, bool enable_irqs) +{ + u32 val; + + usbd_writel(udc, 0, USBD_STATUS_REG); + + val = BIT(USBD_EVENT_IRQ_USB_RESET) | + BIT(USBD_EVENT_IRQ_SETUP) | + BIT(USBD_EVENT_IRQ_SETCFG) | + BIT(USBD_EVENT_IRQ_SETINTF) | + BIT(USBD_EVENT_IRQ_USB_LINK); + usbd_writel(udc, enable_irqs ? val : 0, USBD_EVENT_IRQ_MASK_REG); + usbd_writel(udc, val, USBD_EVENT_IRQ_STATUS_REG); +} + +/** + * bcm63xx_select_phy_mode - Select between USB device and host mode. + * @udc: Reference to the device controller. + * @is_device: true for device, false for host. + * + * This should probably be reworked to use the drivers/usb/otg + * infrastructure. + * + * By default, the AFE/pullups are disabled in device mode, until + * bcm63xx_select_pullup() is called. + */ +static void bcm63xx_select_phy_mode(struct bcm63xx_udc *udc, bool is_device) +{ + u32 val, portmask = BIT(udc->pd->port_no); + + if (BCMCPU_IS_6328()) { + /* configure pinmux to sense VBUS signal */ + val = bcm_gpio_readl(GPIO_PINMUX_OTHR_REG); + val &= ~GPIO_PINMUX_OTHR_6328_USB_MASK; + val |= is_device ? GPIO_PINMUX_OTHR_6328_USB_DEV : + GPIO_PINMUX_OTHR_6328_USB_HOST; + bcm_gpio_writel(val, GPIO_PINMUX_OTHR_REG); + } + + val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_UTMI_CTL_6368_REG); + if (is_device) { + val |= (portmask << USBH_PRIV_UTMI_CTL_HOSTB_SHIFT); + val |= (portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT); + } else { + val &= ~(portmask << USBH_PRIV_UTMI_CTL_HOSTB_SHIFT); + val &= ~(portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT); + } + bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_UTMI_CTL_6368_REG); + + val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6368_REG); + if (is_device) + val |= USBH_PRIV_SWAP_USBD_MASK; + else + val &= ~USBH_PRIV_SWAP_USBD_MASK; + bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_SWAP_6368_REG); +} + +/** + * bcm63xx_select_pullup - Enable/disable the pullup on D+ + * @udc: Reference to the device controller. + * @is_on: true to enable the pullup, false to disable. + * + * If the pullup is active, the host will sense a FS/HS device connected to + * the port. If the pullup is inactive, the host will think the USB + * device has been disconnected. + */ +static void bcm63xx_select_pullup(struct bcm63xx_udc *udc, bool is_on) +{ + u32 val, portmask = BIT(udc->pd->port_no); + + val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_UTMI_CTL_6368_REG); + if (is_on) + val &= ~(portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT); + else + val |= (portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT); + bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_UTMI_CTL_6368_REG); +} + +/** + * bcm63xx_uninit_udc_hw - Shut down the hardware prior to driver removal. + * @udc: Reference to the device controller. + * + * This just masks the IUDMA IRQs and releases the clocks. It is assumed + * that bcm63xx_udc_stop() has already run, and the clocks are stopped. + */ +static void bcm63xx_uninit_udc_hw(struct bcm63xx_udc *udc) +{ + set_clocks(udc, true); + iudma_uninit(udc); + set_clocks(udc, false); + + clk_put(udc->usbd_clk); + clk_put(udc->usbh_clk); +} + +/** + * bcm63xx_init_udc_hw - Initialize the controller hardware and data structures. + * @udc: Reference to the device controller. + */ +static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc) +{ + int i, rc = 0; + u32 val; + + udc->ep0_ctrl_buf = devm_kzalloc(udc->dev, BCM63XX_MAX_CTRL_PKT, + GFP_KERNEL); + if (!udc->ep0_ctrl_buf) + return -ENOMEM; + + INIT_LIST_HEAD(&udc->gadget.ep_list); + for (i = 0; i < BCM63XX_NUM_EP; i++) { + struct bcm63xx_ep *bep = &udc->bep[i]; + + bep->ep.name = bcm63xx_ep_name[i]; + bep->ep_num = i; + bep->ep.ops = &bcm63xx_udc_ep_ops; + list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list); + bep->halted = 0; + bep->ep.maxpacket = BCM63XX_MAX_CTRL_PKT; + bep->udc = udc; + bep->ep.desc = NULL; + INIT_LIST_HEAD(&bep->queue); + } + + udc->gadget.ep0 = &udc->bep[0].ep; + list_del(&udc->bep[0].ep.ep_list); + + udc->gadget.speed = USB_SPEED_UNKNOWN; + udc->ep0state = EP0_SHUTDOWN; + + udc->usbh_clk = clk_get(udc->dev, "usbh"); + if (IS_ERR(udc->usbh_clk)) + return -EIO; + + udc->usbd_clk = clk_get(udc->dev, "usbd"); + if (IS_ERR(udc->usbd_clk)) { + clk_put(udc->usbh_clk); + return -EIO; + } + + set_clocks(udc, true); + + val = USBD_CONTROL_AUTO_CSRS_MASK | + USBD_CONTROL_DONE_CSRS_MASK | + (irq_coalesce ? USBD_CONTROL_RXZSCFG_MASK : 0); + usbd_writel(udc, val, USBD_CONTROL_REG); + + val = USBD_STRAPS_APP_SELF_PWR_MASK | + USBD_STRAPS_APP_RAM_IF_MASK | + USBD_STRAPS_APP_CSRPRGSUP_MASK | + USBD_STRAPS_APP_8BITPHY_MASK | + USBD_STRAPS_APP_RMTWKUP_MASK; + + if (udc->gadget.max_speed == USB_SPEED_HIGH) + val |= (BCM63XX_SPD_HIGH << USBD_STRAPS_SPEED_SHIFT); + else + val |= (BCM63XX_SPD_FULL << USBD_STRAPS_SPEED_SHIFT); + usbd_writel(udc, val, USBD_STRAPS_REG); + + bcm63xx_set_ctrl_irqs(udc, false); + + usbd_writel(udc, 0, USBD_EVENT_IRQ_CFG_LO_REG); + + val = USBD_EVENT_IRQ_CFG_FALLING(USBD_EVENT_IRQ_ENUM_ON) | + USBD_EVENT_IRQ_CFG_FALLING(USBD_EVENT_IRQ_SET_CSRS); + usbd_writel(udc, val, USBD_EVENT_IRQ_CFG_HI_REG); + + rc = iudma_init(udc); + set_clocks(udc, false); + if (rc) + bcm63xx_uninit_udc_hw(udc); + + return 0; +} + +/*********************************************************************** + * Standard EP gadget operations + ***********************************************************************/ + +/** + * bcm63xx_ep_enable - Enable one endpoint. + * @ep: Endpoint to enable. + * @desc: Contains max packet, direction, etc. + * + * Most of the endpoint parameters are fixed in this controller, so there + * isn't much for this function to do. + */ +static int bcm63xx_ep_enable(struct usb_ep *ep, + const struct usb_endpoint_descriptor *desc) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + struct iudma_ch *iudma = bep->iudma; + unsigned long flags; + + if (!ep || !desc || ep->name == bcm63xx_ep0name) + return -EINVAL; + + if (!udc->driver) + return -ESHUTDOWN; + + spin_lock_irqsave(&udc->lock, flags); + if (iudma->enabled) { + spin_unlock_irqrestore(&udc->lock, flags); + return -EINVAL; + } + + iudma->enabled = true; + BUG_ON(!list_empty(&bep->queue)); + + iudma_reset_channel(udc, iudma); + + bep->halted = 0; + bcm63xx_set_stall(udc, bep, false); + clear_bit(bep->ep_num, &udc->wedgemap); + + ep->desc = desc; + ep->maxpacket = usb_endpoint_maxp(desc); + + spin_unlock_irqrestore(&udc->lock, flags); + return 0; +} + +/** + * bcm63xx_ep_disable - Disable one endpoint. + * @ep: Endpoint to disable. + */ +static int bcm63xx_ep_disable(struct usb_ep *ep) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + struct iudma_ch *iudma = bep->iudma; + struct list_head *pos, *n; + unsigned long flags; + + if (!ep || !ep->desc) + return -EINVAL; + + spin_lock_irqsave(&udc->lock, flags); + if (!iudma->enabled) { + spin_unlock_irqrestore(&udc->lock, flags); + return -EINVAL; + } + iudma->enabled = false; + + iudma_reset_channel(udc, iudma); + + if (!list_empty(&bep->queue)) { + list_for_each_safe(pos, n, &bep->queue) { + struct bcm63xx_req *breq = + list_entry(pos, struct bcm63xx_req, queue); + + usb_gadget_unmap_request(&udc->gadget, &breq->req, + iudma->is_tx); + list_del(&breq->queue); + breq->req.status = -ESHUTDOWN; + + spin_unlock_irqrestore(&udc->lock, flags); + breq->req.complete(&iudma->bep->ep, &breq->req); + spin_lock_irqsave(&udc->lock, flags); + } + } + ep->desc = NULL; + + spin_unlock_irqrestore(&udc->lock, flags); + return 0; +} + +/** + * bcm63xx_udc_alloc_request - Allocate a new request. + * @ep: Endpoint associated with the request. + * @mem_flags: Flags to pass to kzalloc(). + */ +static struct usb_request *bcm63xx_udc_alloc_request(struct usb_ep *ep, + gfp_t mem_flags) +{ + struct bcm63xx_req *breq; + + breq = kzalloc(sizeof(*breq), mem_flags); + if (!breq) + return NULL; + return &breq->req; +} + +/** + * bcm63xx_udc_free_request - Free a request. + * @ep: Endpoint associated with the request. + * @req: Request to free. + */ +static void bcm63xx_udc_free_request(struct usb_ep *ep, + struct usb_request *req) +{ + struct bcm63xx_req *breq = our_req(req); + kfree(breq); +} + +/** + * bcm63xx_udc_queue - Queue up a new request. + * @ep: Endpoint associated with the request. + * @req: Request to add. + * @mem_flags: Unused. + * + * If the queue is empty, start this request immediately. Otherwise, add + * it to the list. + * + * ep0 replies are sent through this function from the gadget driver, but + * they are treated differently because they need to be handled by the ep0 + * state machine. (Sometimes they are replies to control requests that + * were spoofed by this driver, and so they shouldn't be transmitted at all.) + */ +static int bcm63xx_udc_queue(struct usb_ep *ep, struct usb_request *req, + gfp_t mem_flags) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + struct bcm63xx_req *breq = our_req(req); + unsigned long flags; + int rc = 0; + + if (unlikely(!req || !req->complete || !req->buf || !ep)) + return -EINVAL; + + req->actual = 0; + req->status = 0; + breq->offset = 0; + + if (bep == &udc->bep[0]) { + /* only one reply per request, please */ + if (udc->ep0_reply) + return -EINVAL; + + udc->ep0_reply = req; + schedule_work(&udc->ep0_wq); + return 0; + } + + spin_lock_irqsave(&udc->lock, flags); + if (!bep->iudma->enabled) { + rc = -ESHUTDOWN; + goto out; + } + + rc = usb_gadget_map_request(&udc->gadget, req, bep->iudma->is_tx); + if (rc == 0) { + list_add_tail(&breq->queue, &bep->queue); + if (list_is_singular(&bep->queue)) + iudma_write(udc, bep->iudma, breq); + } + +out: + spin_unlock_irqrestore(&udc->lock, flags); + return rc; +} + +/** + * bcm63xx_udc_dequeue - Remove a pending request from the queue. + * @ep: Endpoint associated with the request. + * @req: Request to remove. + * + * If the request is not at the head of the queue, this is easy - just nuke + * it. If the request is at the head of the queue, we'll need to stop the + * DMA transaction and then queue up the successor. + */ +static int bcm63xx_udc_dequeue(struct usb_ep *ep, struct usb_request *req) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + struct bcm63xx_req *breq = our_req(req), *cur; + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(&udc->lock, flags); + if (list_empty(&bep->queue)) { + rc = -EINVAL; + goto out; + } + + cur = list_first_entry(&bep->queue, struct bcm63xx_req, queue); + usb_gadget_unmap_request(&udc->gadget, &breq->req, bep->iudma->is_tx); + + if (breq == cur) { + iudma_reset_channel(udc, bep->iudma); + list_del(&breq->queue); + + if (!list_empty(&bep->queue)) { + struct bcm63xx_req *next; + + next = list_first_entry(&bep->queue, + struct bcm63xx_req, queue); + iudma_write(udc, bep->iudma, next); + } + } else { + list_del(&breq->queue); + } + +out: + spin_unlock_irqrestore(&udc->lock, flags); + + req->status = -ESHUTDOWN; + req->complete(ep, req); + + return rc; +} + +/** + * bcm63xx_udc_set_halt - Enable/disable STALL flag in the hardware. + * @ep: Endpoint to halt. + * @value: Zero to clear halt; nonzero to set halt. + * + * See comments in bcm63xx_update_wedge(). + */ +static int bcm63xx_udc_set_halt(struct usb_ep *ep, int value) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + unsigned long flags; + + spin_lock_irqsave(&udc->lock, flags); + bcm63xx_set_stall(udc, bep, !!value); + bep->halted = value; + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +/** + * bcm63xx_udc_set_wedge - Stall the endpoint until the next reset. + * @ep: Endpoint to wedge. + * + * See comments in bcm63xx_update_wedge(). + */ +static int bcm63xx_udc_set_wedge(struct usb_ep *ep) +{ + struct bcm63xx_ep *bep = our_ep(ep); + struct bcm63xx_udc *udc = bep->udc; + unsigned long flags; + + spin_lock_irqsave(&udc->lock, flags); + set_bit(bep->ep_num, &udc->wedgemap); + bcm63xx_set_stall(udc, bep, true); + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +static const struct usb_ep_ops bcm63xx_udc_ep_ops = { + .enable = bcm63xx_ep_enable, + .disable = bcm63xx_ep_disable, + + .alloc_request = bcm63xx_udc_alloc_request, + .free_request = bcm63xx_udc_free_request, + + .queue = bcm63xx_udc_queue, + .dequeue = bcm63xx_udc_dequeue, + + .set_halt = bcm63xx_udc_set_halt, + .set_wedge = bcm63xx_udc_set_wedge, +}; + +/*********************************************************************** + * EP0 handling + ***********************************************************************/ + +/** + * bcm63xx_ep0_setup_callback - Drop spinlock to invoke ->setup callback. + * @udc: Reference to the device controller. + * @ctrl: 8-byte SETUP request. + */ +static int bcm63xx_ep0_setup_callback(struct bcm63xx_udc *udc, + struct usb_ctrlrequest *ctrl) +{ + int rc; + + spin_unlock_irq(&udc->lock); + rc = udc->driver->setup(&udc->gadget, ctrl); + spin_lock_irq(&udc->lock); + return rc; +} + +/** + * bcm63xx_ep0_spoof_set_cfg - Synthesize a SET_CONFIGURATION request. + * @udc: Reference to the device controller. + * + * Many standard requests are handled automatically in the hardware, but + * we still need to pass them to the gadget driver so that it can + * reconfigure the interfaces/endpoints if necessary. + * + * Unfortunately we are not able to send a STALL response if the host + * requests an invalid configuration. If this happens, we'll have to be + * content with printing a warning. + */ +static int bcm63xx_ep0_spoof_set_cfg(struct bcm63xx_udc *udc) +{ + struct usb_ctrlrequest ctrl; + int rc; + + ctrl.bRequestType = USB_DIR_OUT | USB_RECIP_DEVICE; + ctrl.bRequest = USB_REQ_SET_CONFIGURATION; + ctrl.wValue = cpu_to_le16(udc->cfg); + ctrl.wIndex = 0; + ctrl.wLength = 0; + + rc = bcm63xx_ep0_setup_callback(udc, &ctrl); + if (rc < 0) { + dev_warn_ratelimited(udc->dev, + "hardware auto-acked bad SET_CONFIGURATION(%d) request\n", + udc->cfg); + } + return rc; +} + +/** + * bcm63xx_ep0_spoof_set_iface - Synthesize a SET_INTERFACE request. + * @udc: Reference to the device controller. + */ +static int bcm63xx_ep0_spoof_set_iface(struct bcm63xx_udc *udc) +{ + struct usb_ctrlrequest ctrl; + int rc; + + ctrl.bRequestType = USB_DIR_OUT | USB_RECIP_INTERFACE; + ctrl.bRequest = USB_REQ_SET_INTERFACE; + ctrl.wValue = cpu_to_le16(udc->alt_iface); + ctrl.wIndex = cpu_to_le16(udc->iface); + ctrl.wLength = 0; + + rc = bcm63xx_ep0_setup_callback(udc, &ctrl); + if (rc < 0) { + dev_warn_ratelimited(udc->dev, + "hardware auto-acked bad SET_INTERFACE(%d,%d) request\n", + udc->iface, udc->alt_iface); + } + return rc; +} + +/** + * bcm63xx_ep0_map_write - dma_map and iudma_write a single request. + * @udc: Reference to the device controller. + * @ch_idx: IUDMA channel number. + * @req: USB gadget layer representation of the request. + */ +static void bcm63xx_ep0_map_write(struct bcm63xx_udc *udc, int ch_idx, + struct usb_request *req) +{ + struct bcm63xx_req *breq = our_req(req); + struct iudma_ch *iudma = &udc->iudma[ch_idx]; + + BUG_ON(udc->ep0_request); + udc->ep0_request = req; + + req->actual = 0; + breq->offset = 0; + usb_gadget_map_request(&udc->gadget, req, iudma->is_tx); + iudma_write(udc, iudma, breq); +} + +/** + * bcm63xx_ep0_complete - Set completion status and "stage" the callback. + * @udc: Reference to the device controller. + * @req: USB gadget layer representation of the request. + * @status: Status to return to the gadget driver. + */ +static void bcm63xx_ep0_complete(struct bcm63xx_udc *udc, + struct usb_request *req, int status) +{ + req->status = status; + if (status) + req->actual = 0; + if (req->complete) { + spin_unlock_irq(&udc->lock); + req->complete(&udc->bep[0].ep, req); + spin_lock_irq(&udc->lock); + } +} + +/** + * bcm63xx_ep0_nuke_reply - Abort request from the gadget driver due to + * reset/shutdown. + * @udc: Reference to the device controller. + * @is_tx: Nonzero for TX (IN), zero for RX (OUT). + */ +static void bcm63xx_ep0_nuke_reply(struct bcm63xx_udc *udc, int is_tx) +{ + struct usb_request *req = udc->ep0_reply; + + udc->ep0_reply = NULL; + usb_gadget_unmap_request(&udc->gadget, req, is_tx); + if (udc->ep0_request == req) { + udc->ep0_req_completed = 0; + udc->ep0_request = NULL; + } + bcm63xx_ep0_complete(udc, req, -ESHUTDOWN); +} + +/** + * bcm63xx_ep0_read_complete - Close out the pending ep0 request; return + * transfer len. + * @udc: Reference to the device controller. + */ +static int bcm63xx_ep0_read_complete(struct bcm63xx_udc *udc) +{ + struct usb_request *req = udc->ep0_request; + + udc->ep0_req_completed = 0; + udc->ep0_request = NULL; + + return req->actual; +} + +/** + * bcm63xx_ep0_internal_request - Helper function to submit an ep0 request. + * @udc: Reference to the device controller. + * @ch_idx: IUDMA channel number. + * @length: Number of bytes to TX/RX. + * + * Used for simple transfers performed by the ep0 worker. This will always + * use ep0_ctrl_req / ep0_ctrl_buf. + */ +static void bcm63xx_ep0_internal_request(struct bcm63xx_udc *udc, int ch_idx, + int length) +{ + struct usb_request *req = &udc->ep0_ctrl_req.req; + + req->buf = udc->ep0_ctrl_buf; + req->length = length; + req->complete = NULL; + + bcm63xx_ep0_map_write(udc, ch_idx, req); +} + +/** + * bcm63xx_ep0_do_setup - Parse new SETUP packet and decide how to handle it. + * @udc: Reference to the device controller. + * + * EP0_IDLE probably shouldn't ever happen. EP0_REQUEUE means we're ready + * for the next packet. Anything else means the transaction requires multiple + * stages of handling. + */ +static enum bcm63xx_ep0_state bcm63xx_ep0_do_setup(struct bcm63xx_udc *udc) +{ + int rc; + struct usb_ctrlrequest *ctrl = (void *)udc->ep0_ctrl_buf; + + rc = bcm63xx_ep0_read_complete(udc); + + if (rc < 0) { + dev_err(udc->dev, "missing SETUP packet\n"); + return EP0_IDLE; + } + + /* + * Handle 0-byte IN STATUS acknowledgement. The hardware doesn't + * ALWAYS deliver these 100% of the time, so if we happen to see one, + * just throw it away. + */ + if (rc == 0) + return EP0_REQUEUE; + + /* Drop malformed SETUP packets */ + if (rc != sizeof(*ctrl)) { + dev_warn_ratelimited(udc->dev, + "malformed SETUP packet (%d bytes)\n", rc); + return EP0_REQUEUE; + } + + /* Process new SETUP packet arriving on ep0 */ + rc = bcm63xx_ep0_setup_callback(udc, ctrl); + if (rc < 0) { + bcm63xx_set_stall(udc, &udc->bep[0], true); + return EP0_REQUEUE; + } + + if (!ctrl->wLength) + return EP0_REQUEUE; + else if (ctrl->bRequestType & USB_DIR_IN) + return EP0_IN_DATA_PHASE_SETUP; + else + return EP0_OUT_DATA_PHASE_SETUP; +} + +/** + * bcm63xx_ep0_do_idle - Check for outstanding requests if ep0 is idle. + * @udc: Reference to the device controller. + * + * In state EP0_IDLE, the RX descriptor is either pending, or has been + * filled with a SETUP packet from the host. This function handles new + * SETUP packets, control IRQ events (which can generate fake SETUP packets), + * and reset/shutdown events. + * + * Returns 0 if work was done; -EAGAIN if nothing to do. + */ +static int bcm63xx_ep0_do_idle(struct bcm63xx_udc *udc) +{ + if (udc->ep0_req_reset) { + udc->ep0_req_reset = 0; + } else if (udc->ep0_req_set_cfg) { + udc->ep0_req_set_cfg = 0; + if (bcm63xx_ep0_spoof_set_cfg(udc) >= 0) + udc->ep0state = EP0_IN_FAKE_STATUS_PHASE; + } else if (udc->ep0_req_set_iface) { + udc->ep0_req_set_iface = 0; + if (bcm63xx_ep0_spoof_set_iface(udc) >= 0) + udc->ep0state = EP0_IN_FAKE_STATUS_PHASE; + } else if (udc->ep0_req_completed) { + udc->ep0state = bcm63xx_ep0_do_setup(udc); + return udc->ep0state == EP0_IDLE ? -EAGAIN : 0; + } else if (udc->ep0_req_shutdown) { + udc->ep0_req_shutdown = 0; + udc->ep0_req_completed = 0; + udc->ep0_request = NULL; + iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_RXCHAN]); + usb_gadget_unmap_request(&udc->gadget, + &udc->ep0_ctrl_req.req, 0); + + /* bcm63xx_udc_pullup() is waiting for this */ + mb(); + udc->ep0state = EP0_SHUTDOWN; + } else if (udc->ep0_reply) { + /* + * This could happen if a USB RESET shows up during an ep0 + * transaction (especially if a laggy driver like gadgetfs + * is in use). + */ + dev_warn(udc->dev, "nuking unexpected reply\n"); + bcm63xx_ep0_nuke_reply(udc, 0); + } else { + return -EAGAIN; + } + + return 0; +} + +/** + * bcm63xx_ep0_one_round - Handle the current ep0 state. + * @udc: Reference to the device controller. + * + * Returns 0 if work was done; -EAGAIN if nothing to do. + */ +static int bcm63xx_ep0_one_round(struct bcm63xx_udc *udc) +{ + enum bcm63xx_ep0_state ep0state = udc->ep0state; + bool shutdown = udc->ep0_req_reset || udc->ep0_req_shutdown; + + switch (udc->ep0state) { + case EP0_REQUEUE: + /* set up descriptor to receive SETUP packet */ + bcm63xx_ep0_internal_request(udc, IUDMA_EP0_RXCHAN, + BCM63XX_MAX_CTRL_PKT); + ep0state = EP0_IDLE; + break; + case EP0_IDLE: + return bcm63xx_ep0_do_idle(udc); + case EP0_IN_DATA_PHASE_SETUP: + /* + * Normal case: TX request is in ep0_reply (queued by the + * callback), or will be queued shortly. When it's here, + * send it to the HW and go to EP0_IN_DATA_PHASE_COMPLETE. + * + * Shutdown case: Stop waiting for the reply. Just + * REQUEUE->IDLE. The gadget driver is NOT expected to + * queue anything else now. + */ + if (udc->ep0_reply) { + bcm63xx_ep0_map_write(udc, IUDMA_EP0_TXCHAN, + udc->ep0_reply); + ep0state = EP0_IN_DATA_PHASE_COMPLETE; + } else if (shutdown) { + ep0state = EP0_REQUEUE; + } + break; + case EP0_IN_DATA_PHASE_COMPLETE: { + /* + * Normal case: TX packet (ep0_reply) is in flight; wait for + * it to finish, then go back to REQUEUE->IDLE. + * + * Shutdown case: Reset the TX channel, send -ESHUTDOWN + * completion to the gadget driver, then REQUEUE->IDLE. + */ + if (udc->ep0_req_completed) { + udc->ep0_reply = NULL; + bcm63xx_ep0_read_complete(udc); + /* + * the "ack" sometimes gets eaten (see + * bcm63xx_ep0_do_idle) + */ + ep0state = EP0_REQUEUE; + } else if (shutdown) { + iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_TXCHAN]); + bcm63xx_ep0_nuke_reply(udc, 1); + ep0state = EP0_REQUEUE; + } + break; + } + case EP0_OUT_DATA_PHASE_SETUP: + /* Similar behavior to EP0_IN_DATA_PHASE_SETUP */ + if (udc->ep0_reply) { + bcm63xx_ep0_map_write(udc, IUDMA_EP0_RXCHAN, + udc->ep0_reply); + ep0state = EP0_OUT_DATA_PHASE_COMPLETE; + } else if (shutdown) { + ep0state = EP0_REQUEUE; + } + break; + case EP0_OUT_DATA_PHASE_COMPLETE: { + /* Similar behavior to EP0_IN_DATA_PHASE_COMPLETE */ + if (udc->ep0_req_completed) { + udc->ep0_reply = NULL; + bcm63xx_ep0_read_complete(udc); + + /* send 0-byte ack to host */ + bcm63xx_ep0_internal_request(udc, IUDMA_EP0_TXCHAN, 0); + ep0state = EP0_OUT_STATUS_PHASE; + } else if (shutdown) { + iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_RXCHAN]); + bcm63xx_ep0_nuke_reply(udc, 0); + ep0state = EP0_REQUEUE; + } + break; + } + case EP0_OUT_STATUS_PHASE: + /* + * Normal case: 0-byte OUT ack packet is in flight; wait + * for it to finish, then go back to REQUEUE->IDLE. + * + * Shutdown case: just cancel the transmission. Don't bother + * calling the completion, because it originated from this + * function anyway. Then go back to REQUEUE->IDLE. + */ + if (udc->ep0_req_completed) { + bcm63xx_ep0_read_complete(udc); + ep0state = EP0_REQUEUE; + } else if (shutdown) { + iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_TXCHAN]); + udc->ep0_request = NULL; + ep0state = EP0_REQUEUE; + } + break; + case EP0_IN_FAKE_STATUS_PHASE: { + /* + * Normal case: we spoofed a SETUP packet and are now + * waiting for the gadget driver to send a 0-byte reply. + * This doesn't actually get sent to the HW because the + * HW has already sent its own reply. Once we get the + * response, return to IDLE. + * + * Shutdown case: return to IDLE immediately. + * + * Note that the ep0 RX descriptor has remained queued + * (and possibly unfilled) during this entire transaction. + * The HW datapath (IUDMA) never even sees SET_CONFIGURATION + * or SET_INTERFACE transactions. + */ + struct usb_request *r = udc->ep0_reply; + + if (!r) { + if (shutdown) + ep0state = EP0_IDLE; + break; + } + + bcm63xx_ep0_complete(udc, r, 0); + udc->ep0_reply = NULL; + ep0state = EP0_IDLE; + break; + } + case EP0_SHUTDOWN: + break; + } + + if (udc->ep0state == ep0state) + return -EAGAIN; + + udc->ep0state = ep0state; + return 0; +} + +/** + * bcm63xx_ep0_process - ep0 worker thread / state machine. + * @w: Workqueue struct. + * + * bcm63xx_ep0_process is triggered any time an event occurs on ep0. It + * is used to synchronize ep0 events and ensure that both HW and SW events + * occur in a well-defined order. When the ep0 IUDMA queues are idle, it may + * synthesize SET_CONFIGURATION / SET_INTERFACE requests that were consumed + * by the USBD hardware. + * + * The worker function will continue iterating around the state machine + * until there is nothing left to do. Usually "nothing left to do" means + * that we're waiting for a new event from the hardware. + */ +static void bcm63xx_ep0_process(struct work_struct *w) +{ + struct bcm63xx_udc *udc = container_of(w, struct bcm63xx_udc, ep0_wq); + spin_lock_irq(&udc->lock); + while (bcm63xx_ep0_one_round(udc) == 0) + ; + spin_unlock_irq(&udc->lock); +} + +/*********************************************************************** + * Standard UDC gadget operations + ***********************************************************************/ + +/** + * bcm63xx_udc_get_frame - Read current SOF frame number from the HW. + * @gadget: USB slave device. + */ +static int bcm63xx_udc_get_frame(struct usb_gadget *gadget) +{ + struct bcm63xx_udc *udc = gadget_to_udc(gadget); + + return (usbd_readl(udc, USBD_STATUS_REG) & + USBD_STATUS_SOF_MASK) >> USBD_STATUS_SOF_SHIFT; +} + +/** + * bcm63xx_udc_pullup - Enable/disable pullup on D+ line. + * @gadget: USB slave device. + * @is_on: 0 to disable pullup, 1 to enable. + * + * See notes in bcm63xx_select_pullup(). + */ +static int bcm63xx_udc_pullup(struct usb_gadget *gadget, int is_on) +{ + struct bcm63xx_udc *udc = gadget_to_udc(gadget); + unsigned long flags; + int i, rc = -EINVAL; + + spin_lock_irqsave(&udc->lock, flags); + if (is_on && udc->ep0state == EP0_SHUTDOWN) { + udc->gadget.speed = USB_SPEED_UNKNOWN; + udc->ep0state = EP0_REQUEUE; + bcm63xx_fifo_setup(udc); + bcm63xx_fifo_reset(udc); + bcm63xx_ep_setup(udc); + + bitmap_zero(&udc->wedgemap, BCM63XX_NUM_EP); + for (i = 0; i < BCM63XX_NUM_EP; i++) + bcm63xx_set_stall(udc, &udc->bep[i], false); + + bcm63xx_set_ctrl_irqs(udc, true); + bcm63xx_select_pullup(gadget_to_udc(gadget), true); + rc = 0; + } else if (!is_on && udc->ep0state != EP0_SHUTDOWN) { + bcm63xx_select_pullup(gadget_to_udc(gadget), false); + + udc->ep0_req_shutdown = 1; + spin_unlock_irqrestore(&udc->lock, flags); + + while (1) { + schedule_work(&udc->ep0_wq); + if (udc->ep0state == EP0_SHUTDOWN) + break; + msleep(50); + } + bcm63xx_set_ctrl_irqs(udc, false); + cancel_work_sync(&udc->ep0_wq); + return 0; + } + + spin_unlock_irqrestore(&udc->lock, flags); + return rc; +} + +/** + * bcm63xx_udc_start - Start the controller. + * @gadget: USB slave device. + * @driver: Driver for USB slave devices. + */ +static int bcm63xx_udc_start(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + struct bcm63xx_udc *udc = gadget_to_udc(gadget); + unsigned long flags; + + if (!driver || driver->max_speed < USB_SPEED_HIGH || + !driver->setup) + return -EINVAL; + if (!udc) + return -ENODEV; + if (udc->driver) + return -EBUSY; + + spin_lock_irqsave(&udc->lock, flags); + + set_clocks(udc, true); + bcm63xx_fifo_setup(udc); + bcm63xx_ep_init(udc); + bcm63xx_ep_setup(udc); + bcm63xx_fifo_reset(udc); + bcm63xx_select_phy_mode(udc, true); + + udc->driver = driver; + driver->driver.bus = NULL; + udc->gadget.dev.driver = &driver->driver; + udc->gadget.dev.of_node = udc->dev->of_node; + + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +/** + * bcm63xx_udc_stop - Shut down the controller. + * @gadget: USB slave device. + * @driver: Driver for USB slave devices. + */ +static int bcm63xx_udc_stop(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + struct bcm63xx_udc *udc = gadget_to_udc(gadget); + unsigned long flags; + + spin_lock_irqsave(&udc->lock, flags); + + udc->driver = NULL; + udc->gadget.dev.driver = NULL; + + /* + * If we switch the PHY too abruptly after dropping D+, the host + * will often complain: + * + * hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling... + */ + msleep(100); + + bcm63xx_select_phy_mode(udc, false); + set_clocks(udc, false); + + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + +static const struct usb_gadget_ops bcm63xx_udc_ops = { + .get_frame = bcm63xx_udc_get_frame, + .pullup = bcm63xx_udc_pullup, + .udc_start = bcm63xx_udc_start, + .udc_stop = bcm63xx_udc_stop, +}; + +/*********************************************************************** + * IRQ handling + ***********************************************************************/ + +/** + * bcm63xx_update_cfg_iface - Read current configuration/interface settings. + * @udc: Reference to the device controller. + * + * This controller intercepts SET_CONFIGURATION and SET_INTERFACE messages. + * The driver never sees the raw control packets coming in on the ep0 + * IUDMA channel, but at least we get an interrupt event to tell us that + * new values are waiting in the USBD_STATUS register. + */ +static void bcm63xx_update_cfg_iface(struct bcm63xx_udc *udc) +{ + u32 reg = usbd_readl(udc, USBD_STATUS_REG); + + udc->cfg = (reg & USBD_STATUS_CFG_MASK) >> USBD_STATUS_CFG_SHIFT; + udc->iface = (reg & USBD_STATUS_INTF_MASK) >> USBD_STATUS_INTF_SHIFT; + udc->alt_iface = (reg & USBD_STATUS_ALTINTF_MASK) >> + USBD_STATUS_ALTINTF_SHIFT; + bcm63xx_ep_setup(udc); +} + +/** + * bcm63xx_update_link_speed - Check to see if the link speed has changed. + * @udc: Reference to the device controller. + * + * The link speed update coincides with a SETUP IRQ. Returns 1 if the + * speed has changed, so that the caller can update the endpoint settings. + */ +static int bcm63xx_update_link_speed(struct bcm63xx_udc *udc) +{ + u32 reg = usbd_readl(udc, USBD_STATUS_REG); + enum usb_device_speed oldspeed = udc->gadget.speed; + + switch ((reg & USBD_STATUS_SPD_MASK) >> USBD_STATUS_SPD_SHIFT) { + case BCM63XX_SPD_HIGH: + udc->gadget.speed = USB_SPEED_HIGH; + break; + case BCM63XX_SPD_FULL: + udc->gadget.speed = USB_SPEED_FULL; + break; + default: + /* this should never happen */ + udc->gadget.speed = USB_SPEED_UNKNOWN; + dev_err(udc->dev, + "received SETUP packet with invalid link speed\n"); + return 0; + } + + if (udc->gadget.speed != oldspeed) { + dev_info(udc->dev, "link up, %s-speed mode\n", + udc->gadget.speed == USB_SPEED_HIGH ? "high" : "full"); + return 1; + } else { + return 0; + } +} + +/** + * bcm63xx_update_wedge - Iterate through wedged endpoints. + * @udc: Reference to the device controller. + * @new_status: true to "refresh" wedge status; false to clear it. + * + * On a SETUP interrupt, we need to manually "refresh" the wedge status + * because the controller hardware is designed to automatically clear + * stalls in response to a CLEAR_FEATURE request from the host. + * + * On a RESET interrupt, we do want to restore all wedged endpoints. + */ +static void bcm63xx_update_wedge(struct bcm63xx_udc *udc, bool new_status) +{ + int i; + + for_each_set_bit(i, &udc->wedgemap, BCM63XX_NUM_EP) { + bcm63xx_set_stall(udc, &udc->bep[i], new_status); + if (!new_status) + clear_bit(i, &udc->wedgemap); + } +} + +/** + * bcm63xx_udc_ctrl_isr - ISR for control path events (USBD). + * @irq: IRQ number (unused). + * @dev_id: Reference to the device controller. + * + * This is where we handle link (VBUS) down, USB reset, speed changes, + * SET_CONFIGURATION, and SET_INTERFACE events. + */ +static irqreturn_t bcm63xx_udc_ctrl_isr(int irq, void *dev_id) +{ + struct bcm63xx_udc *udc = dev_id; + u32 stat; + bool disconnected = false; + + stat = usbd_readl(udc, USBD_EVENT_IRQ_STATUS_REG) & + usbd_readl(udc, USBD_EVENT_IRQ_MASK_REG); + + usbd_writel(udc, stat, USBD_EVENT_IRQ_STATUS_REG); + + spin_lock(&udc->lock); + if (stat & BIT(USBD_EVENT_IRQ_USB_LINK)) { + /* VBUS toggled */ + + if (!(usbd_readl(udc, USBD_EVENTS_REG) & + USBD_EVENTS_USB_LINK_MASK) && + udc->gadget.speed != USB_SPEED_UNKNOWN) + dev_info(udc->dev, "link down\n"); + + udc->gadget.speed = USB_SPEED_UNKNOWN; + disconnected = true; + } + if (stat & BIT(USBD_EVENT_IRQ_USB_RESET)) { + bcm63xx_fifo_setup(udc); + bcm63xx_fifo_reset(udc); + bcm63xx_ep_setup(udc); + + bcm63xx_update_wedge(udc, false); + + udc->ep0_req_reset = 1; + schedule_work(&udc->ep0_wq); + disconnected = true; + } + if (stat & BIT(USBD_EVENT_IRQ_SETUP)) { + if (bcm63xx_update_link_speed(udc)) { + bcm63xx_fifo_setup(udc); + bcm63xx_ep_setup(udc); + } + bcm63xx_update_wedge(udc, true); + } + if (stat & BIT(USBD_EVENT_IRQ_SETCFG)) { + bcm63xx_update_cfg_iface(udc); + udc->ep0_req_set_cfg = 1; + schedule_work(&udc->ep0_wq); + } + if (stat & BIT(USBD_EVENT_IRQ_SETINTF)) { + bcm63xx_update_cfg_iface(udc); + udc->ep0_req_set_iface = 1; + schedule_work(&udc->ep0_wq); + } + spin_unlock(&udc->lock); + + if (disconnected && udc->driver) + udc->driver->disconnect(&udc->gadget); + + return IRQ_HANDLED; +} + +/** + * bcm63xx_udc_data_isr - ISR for data path events (IUDMA). + * @irq: IRQ number (unused). + * @dev_id: Reference to the IUDMA channel that generated the interrupt. + * + * For the two ep0 channels, we have special handling that triggers the + * ep0 worker thread. For normal bulk/intr channels, either queue up + * the next buffer descriptor for the transaction (incomplete transaction), + * or invoke the completion callback (complete transactions). + */ +static irqreturn_t bcm63xx_udc_data_isr(int irq, void *dev_id) +{ + struct iudma_ch *iudma = dev_id; + struct bcm63xx_udc *udc = iudma->udc; + struct bcm63xx_ep *bep; + struct usb_request *req = NULL; + struct bcm63xx_req *breq = NULL; + int rc; + bool is_done = false; + + spin_lock(&udc->lock); + + usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK, + ENETDMAC_IR_REG(iudma->ch_idx)); + bep = iudma->bep; + rc = iudma_read(udc, iudma); + + /* special handling for EP0 RX (0) and TX (1) */ + if (iudma->ch_idx == IUDMA_EP0_RXCHAN || + iudma->ch_idx == IUDMA_EP0_TXCHAN) { + req = udc->ep0_request; + breq = our_req(req); + + /* a single request could require multiple submissions */ + if (rc >= 0) { + req->actual += rc; + + if (req->actual >= req->length || breq->bd_bytes > rc) { + udc->ep0_req_completed = 1; + is_done = true; + schedule_work(&udc->ep0_wq); + + /* "actual" on a ZLP is 1 byte */ + req->actual = min(req->actual, req->length); + } else { + /* queue up the next BD (same request) */ + iudma_write(udc, iudma, breq); + } + } + } else if (!list_empty(&bep->queue)) { + breq = list_first_entry(&bep->queue, struct bcm63xx_req, queue); + req = &breq->req; + + if (rc >= 0) { + req->actual += rc; + + if (req->actual >= req->length || breq->bd_bytes > rc) { + is_done = true; + list_del(&breq->queue); + + req->actual = min(req->actual, req->length); + + if (!list_empty(&bep->queue)) { + struct bcm63xx_req *next; + + next = list_first_entry(&bep->queue, + struct bcm63xx_req, queue); + iudma_write(udc, iudma, next); + } + } else { + iudma_write(udc, iudma, breq); + } + } + } + spin_unlock(&udc->lock); + + if (is_done) { + usb_gadget_unmap_request(&udc->gadget, req, iudma->is_tx); + if (req->complete) + req->complete(&bep->ep, req); + } + + return IRQ_HANDLED; +} + +/*********************************************************************** + * Debug filesystem + ***********************************************************************/ + +/* + * bcm63xx_usbd_dbg_show - Show USBD controller state. + * @s: seq_file to which the information will be written. + * @p: Unused. + * + * This file nominally shows up as /sys/kernel/debug/bcm63xx_udc/usbd + */ +static int bcm63xx_usbd_dbg_show(struct seq_file *s, void *p) +{ + struct bcm63xx_udc *udc = s->private; + + if (!udc->driver) + return -ENODEV; + + seq_printf(s, "ep0 state: %s\n", + bcm63xx_ep0_state_names[udc->ep0state]); + seq_printf(s, " pending requests: %s%s%s%s%s%s%s\n", + udc->ep0_req_reset ? "reset " : "", + udc->ep0_req_set_cfg ? "set_cfg " : "", + udc->ep0_req_set_iface ? "set_iface " : "", + udc->ep0_req_shutdown ? "shutdown " : "", + udc->ep0_request ? "pending " : "", + udc->ep0_req_completed ? "completed " : "", + udc->ep0_reply ? "reply " : ""); + seq_printf(s, "cfg: %d; iface: %d; alt_iface: %d\n", + udc->cfg, udc->iface, udc->alt_iface); + seq_printf(s, "regs:\n"); + seq_printf(s, " control: %08x; straps: %08x; status: %08x\n", + usbd_readl(udc, USBD_CONTROL_REG), + usbd_readl(udc, USBD_STRAPS_REG), + usbd_readl(udc, USBD_STATUS_REG)); + seq_printf(s, " events: %08x; stall: %08x\n", + usbd_readl(udc, USBD_EVENTS_REG), + usbd_readl(udc, USBD_STALL_REG)); + + return 0; +} + +/* + * bcm63xx_iudma_dbg_show - Show IUDMA status and descriptors. + * @s: seq_file to which the information will be written. + * @p: Unused. + * + * This file nominally shows up as /sys/kernel/debug/bcm63xx_udc/iudma + */ +static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p) +{ + struct bcm63xx_udc *udc = s->private; + int ch_idx, i; + u32 sram2, sram3; + + if (!udc->driver) + return -ENODEV; + + for (ch_idx = 0; ch_idx < BCM63XX_NUM_IUDMA; ch_idx++) { + struct iudma_ch *iudma = &udc->iudma[ch_idx]; + struct list_head *pos; + + seq_printf(s, "IUDMA channel %d -- ", ch_idx); + switch (iudma_defaults[ch_idx].ep_type) { + case BCMEP_CTRL: + seq_printf(s, "control"); + break; + case BCMEP_BULK: + seq_printf(s, "bulk"); + break; + case BCMEP_INTR: + seq_printf(s, "interrupt"); + break; + } + seq_printf(s, ch_idx & 0x01 ? " tx" : " rx"); + seq_printf(s, " [ep%d]:\n", + max_t(int, iudma_defaults[ch_idx].ep_num, 0)); + seq_printf(s, " cfg: %08x; irqstat: %08x; irqmask: %08x; maxburst: %08x\n", + usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)), + usb_dmac_readl(udc, ENETDMAC_IR_REG(ch_idx)), + usb_dmac_readl(udc, ENETDMAC_IRMASK_REG(ch_idx)), + usb_dmac_readl(udc, ENETDMAC_MAXBURST_REG(ch_idx))); + + sram2 = usb_dmas_readl(udc, ENETDMAS_SRAM2_REG(ch_idx)); + sram3 = usb_dmas_readl(udc, ENETDMAS_SRAM3_REG(ch_idx)); + seq_printf(s, " base: %08x; index: %04x_%04x; desc: %04x_%04x %08x\n", + usb_dmas_readl(udc, ENETDMAS_RSTART_REG(ch_idx)), + sram2 >> 16, sram2 & 0xffff, + sram3 >> 16, sram3 & 0xffff, + usb_dmas_readl(udc, ENETDMAS_SRAM4_REG(ch_idx))); + seq_printf(s, " desc: %d/%d used", iudma->n_bds_used, + iudma->n_bds); + + if (iudma->bep) { + i = 0; + list_for_each(pos, &iudma->bep->queue) + i++; + seq_printf(s, "; %d queued\n", i); + } else { + seq_printf(s, "\n"); + } + + for (i = 0; i < iudma->n_bds; i++) { + struct bcm_enet_desc *d = &iudma->bd_ring[i]; + + seq_printf(s, " %03x (%02x): len_stat: %04x_%04x; pa %08x", + i * sizeof(*d), i, + d->len_stat >> 16, d->len_stat & 0xffff, + d->address); + if (d == iudma->read_bd) + seq_printf(s, " <<RD"); + if (d == iudma->write_bd) + seq_printf(s, " <<WR"); + seq_printf(s, "\n"); + } + + seq_printf(s, "\n"); + } + + return 0; +} + +static int bcm63xx_usbd_dbg_open(struct inode *inode, struct file *file) +{ + return single_open(file, bcm63xx_usbd_dbg_show, inode->i_private); +} + +static int bcm63xx_iudma_dbg_open(struct inode *inode, struct file *file) +{ + return single_open(file, bcm63xx_iudma_dbg_show, inode->i_private); +} + +static const struct file_operations usbd_dbg_fops = { + .owner = THIS_MODULE, + .open = bcm63xx_usbd_dbg_open, + .llseek = seq_lseek, + .read = seq_read, + .release = single_release, +}; + +static const struct file_operations iudma_dbg_fops = { + .owner = THIS_MODULE, + .open = bcm63xx_iudma_dbg_open, + .llseek = seq_lseek, + .read = seq_read, + .release = single_release, +}; + + +/** + * bcm63xx_udc_init_debugfs - Create debugfs entries. + * @udc: Reference to the device controller. + */ +static void bcm63xx_udc_init_debugfs(struct bcm63xx_udc *udc) +{ + struct dentry *root, *usbd, *iudma; + + if (!IS_ENABLED(CONFIG_USB_GADGET_DEBUG_FS)) + return; + + root = debugfs_create_dir(udc->gadget.name, NULL); + if (IS_ERR(root) || !root) + goto err_root; + + usbd = debugfs_create_file("usbd", 0400, root, udc, + &usbd_dbg_fops); + if (!usbd) + goto err_usbd; + iudma = debugfs_create_file("iudma", 0400, root, udc, + &iudma_dbg_fops); + if (!iudma) + goto err_iudma; + + udc->debugfs_root = root; + udc->debugfs_usbd = usbd; + udc->debugfs_iudma = iudma; + return; +err_iudma: + debugfs_remove(usbd); +err_usbd: + debugfs_remove(root); +err_root: + dev_err(udc->dev, "debugfs is not available\n"); +} + +/** + * bcm63xx_udc_cleanup_debugfs - Remove debugfs entries. + * @udc: Reference to the device controller. + * + * debugfs_remove() is safe to call with a NULL argument. + */ +static void bcm63xx_udc_cleanup_debugfs(struct bcm63xx_udc *udc) +{ + debugfs_remove(udc->debugfs_iudma); + debugfs_remove(udc->debugfs_usbd); + debugfs_remove(udc->debugfs_root); + udc->debugfs_iudma = NULL; + udc->debugfs_usbd = NULL; + udc->debugfs_root = NULL; +} + +/*********************************************************************** + * Driver init/exit + ***********************************************************************/ + +/** + * bcm63xx_udc_gadget_release - Called from device_release(). + * @dev: Unused. + * + * We get a warning if this function doesn't exist, but it's empty because + * we don't have to free any of the memory allocated with the devm_* APIs. + */ +static void bcm63xx_udc_gadget_release(struct device *dev) +{ +} + +/** + * bcm63xx_udc_probe - Initialize a new instance of the UDC. + * @pdev: Platform device struct from the bcm63xx BSP code. + * + * Note that platform data is required, because pd.port_no varies from chip + * to chip and is used to switch the correct USB port to device mode. + */ +static int __devinit bcm63xx_udc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm63xx_usbd_platform_data *pd = dev->platform_data; + struct bcm63xx_udc *udc; + struct resource *res; + int rc = -ENOMEM, i, irq; + + udc = devm_kzalloc(dev, sizeof(*udc), GFP_KERNEL); + if (!udc) { + dev_err(dev, "cannot allocate memory\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, udc); + udc->dev = dev; + udc->pd = pd; + + if (!pd) { + dev_err(dev, "missing platform data\n"); + return -EINVAL; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "error finding USBD resource\n"); + return -ENXIO; + } + udc->usbd_regs = devm_request_and_ioremap(dev, res); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(dev, "error finding IUDMA resource\n"); + return -ENXIO; + } + udc->iudma_regs = devm_request_and_ioremap(dev, res); + + if (!udc->usbd_regs || !udc->iudma_regs) { + dev_err(dev, "error requesting resources\n"); + return -ENXIO; + } + + spin_lock_init(&udc->lock); + INIT_WORK(&udc->ep0_wq, bcm63xx_ep0_process); + dev_set_name(&udc->gadget.dev, "gadget"); + + udc->gadget.ops = &bcm63xx_udc_ops; + udc->gadget.name = dev_name(dev); + udc->gadget.dev.parent = dev; + udc->gadget.dev.release = bcm63xx_udc_gadget_release; + udc->gadget.dev.dma_mask = dev->dma_mask; + + if (!pd->use_fullspeed && !use_fullspeed) + udc->gadget.max_speed = USB_SPEED_HIGH; + else + udc->gadget.max_speed = USB_SPEED_FULL; + + /* request clocks, allocate buffers, and clear any pending IRQs */ + rc = bcm63xx_init_udc_hw(udc); + if (rc) + return rc; + + rc = -ENXIO; + + /* IRQ resource #0: control interrupt (VBUS, speed, etc.) */ + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(dev, "missing IRQ resource #0\n"); + goto out_uninit; + } + if (devm_request_irq(dev, irq, &bcm63xx_udc_ctrl_isr, 0, + dev_name(dev), udc) < 0) { + dev_err(dev, "error requesting IRQ #%d\n", irq); + goto out_uninit; + } + + /* IRQ resources #1-6: data interrupts for IUDMA channels 0-5 */ + for (i = 0; i < BCM63XX_NUM_IUDMA; i++) { + irq = platform_get_irq(pdev, i + 1); + if (irq < 0) { + dev_err(dev, "missing IRQ resource #%d\n", i + 1); + goto out_uninit; + } + if (devm_request_irq(dev, irq, &bcm63xx_udc_data_isr, 0, + dev_name(dev), &udc->iudma[i]) < 0) { + dev_err(dev, "error requesting IRQ #%d\n", irq); + goto out_uninit; + } + } + + rc = device_register(&udc->gadget.dev); + if (rc) + goto out_uninit; + + bcm63xx_udc_init_debugfs(udc); + rc = usb_add_gadget_udc(dev, &udc->gadget); + if (!rc) + return 0; + + bcm63xx_udc_cleanup_debugfs(udc); + device_unregister(&udc->gadget.dev); +out_uninit: + bcm63xx_uninit_udc_hw(udc); + return rc; +} + +/** + * bcm63xx_udc_remove - Remove the device from the system. + * @pdev: Platform device struct from the bcm63xx BSP code. + */ +static int __devexit bcm63xx_udc_remove(struct platform_device *pdev) +{ + struct bcm63xx_udc *udc = platform_get_drvdata(pdev); + + bcm63xx_udc_cleanup_debugfs(udc); + usb_del_gadget_udc(&udc->gadget); + device_unregister(&udc->gadget.dev); + BUG_ON(udc->driver); + + platform_set_drvdata(pdev, NULL); + bcm63xx_uninit_udc_hw(udc); + + return 0; +} + +static struct platform_driver bcm63xx_udc_driver = { + .probe = bcm63xx_udc_probe, + .remove = __devexit_p(bcm63xx_udc_remove), + .driver = { + .name = DRV_MODULE_NAME, + .owner = THIS_MODULE, + }, +}; +module_platform_driver(bcm63xx_udc_driver); + +MODULE_DESCRIPTION("BCM63xx USB Peripheral Controller"); +MODULE_AUTHOR("Kevin Cernekee <cernekee@gmail.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_MODULE_NAME); diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 725550f06fab..1e4bb77f00bb 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -11,7 +11,6 @@ */ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/module.h> #include "u_ether.h" @@ -34,6 +33,7 @@ #define CDC_PRODUCT_NUM 0xa4aa /* CDC Composite: ECM + ACM */ /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); /* * Kbuild is not very cooperative with respect to linking separately @@ -43,10 +43,6 @@ * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" #include "u_serial.c" #include "f_acm.c" #include "f_ecm.c" @@ -92,15 +88,10 @@ static const struct usb_descriptor_header *otg_desc[] = { /* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -152,7 +143,6 @@ static struct usb_configuration cdc_config_driver = { static int __init cdc_bind(struct usb_composite_dev *cdev) { - int gcnum; struct usb_gadget *gadget = cdev->gadget; int status; @@ -172,47 +162,22 @@ static int __init cdc_bind(struct usb_composite_dev *cdev) if (status < 0) goto fail0; - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - else { - /* We assume that can_support_ecm() tells the truth; - * but if the controller isn't recognized at all then - * that assumption is a bit more likely to be wrong. - */ - WARNING(cdev, "controller '%s' not recognized; trying %s\n", - gadget->name, - cdc_config_driver.label); - device_desc.bcdDevice = - cpu_to_le16(0x0300 | 0x0099); - } - - /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); - if (status < 0) - goto fail1; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail1; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register our configuration */ status = usb_add_config(cdev, &cdc_config_driver, cdc_do_config); if (status < 0) goto fail1; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", DRIVER_DESC); @@ -232,11 +197,12 @@ static int __exit cdc_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver cdc_driver = { +static __refdata struct usb_composite_driver cdc_driver = { .name = "g_cdc", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = cdc_bind, .unbind = __exit_p(cdc_unbind), }; @@ -246,7 +212,7 @@ MODULE_LICENSE("GPL"); static int __init init(void) { - return usb_composite_probe(&cdc_driver, cdc_bind); + return usb_composite_probe(&cdc_driver); } module_init(init); diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 3f72110da1b0..957f973dd96a 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -28,44 +28,6 @@ * with the relevant device-wide data. */ -/* big enough to hold our biggest descriptor */ -#define USB_BUFSIZ 1024 - -static struct usb_composite_driver *composite; -static int (*composite_gadget_bind)(struct usb_composite_dev *cdev); - -/* Some systems will need runtime overrides for the product identifiers - * published in the device descriptor, either numbers or strings or both. - * String parameters are in UTF-8 (superset of ASCII's 7 bit characters). - */ - -static ushort idVendor; -module_param(idVendor, ushort, 0644); -MODULE_PARM_DESC(idVendor, "USB Vendor ID"); - -static ushort idProduct; -module_param(idProduct, ushort, 0644); -MODULE_PARM_DESC(idProduct, "USB Product ID"); - -static ushort bcdDevice; -module_param(bcdDevice, ushort, 0644); -MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); - -static char *iManufacturer; -module_param(iManufacturer, charp, 0644); -MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); - -static char *iProduct; -module_param(iProduct, charp, 0644); -MODULE_PARM_DESC(iProduct, "USB Product string"); - -static char *iSerialNumber; -module_param(iSerialNumber, charp, 0644); -MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); - -static char composite_manufacturer[50]; - -/*-------------------------------------------------------------------------*/ /** * next_ep_desc() - advance to the next EP descriptor * @t: currect pointer within descriptor array @@ -192,6 +154,7 @@ ep_found: } return 0; } +EXPORT_SYMBOL_GPL(config_ep_by_speed); /** * usb_add_function() - add a function to a configuration @@ -250,6 +213,7 @@ done: function->name, function, value); return value; } +EXPORT_SYMBOL_GPL(usb_add_function); /** * usb_function_deactivate - prevent function and gadget enumeration @@ -286,6 +250,7 @@ int usb_function_deactivate(struct usb_function *function) spin_unlock_irqrestore(&cdev->lock, flags); return status; } +EXPORT_SYMBOL_GPL(usb_function_deactivate); /** * usb_function_activate - allow function and gadget enumeration @@ -300,9 +265,10 @@ int usb_function_deactivate(struct usb_function *function) int usb_function_activate(struct usb_function *function) { struct usb_composite_dev *cdev = function->config->cdev; + unsigned long flags; int status = 0; - spin_lock(&cdev->lock); + spin_lock_irqsave(&cdev->lock, flags); if (WARN_ON(cdev->deactivations == 0)) status = -EINVAL; @@ -312,9 +278,10 @@ int usb_function_activate(struct usb_function *function) status = usb_gadget_connect(cdev->gadget); } - spin_unlock(&cdev->lock); + spin_unlock_irqrestore(&cdev->lock, flags); return status; } +EXPORT_SYMBOL_GPL(usb_function_activate); /** * usb_interface_id() - allocate an unused interface ID @@ -351,16 +318,18 @@ int usb_interface_id(struct usb_configuration *config, } return -ENODEV; } +EXPORT_SYMBOL_GPL(usb_interface_id); static int config_buf(struct usb_configuration *config, enum usb_device_speed speed, void *buf, u8 type) { struct usb_config_descriptor *c = buf; void *next = buf + USB_DT_CONFIG_SIZE; - int len = USB_BUFSIZ - USB_DT_CONFIG_SIZE; + int len; struct usb_function *f; int status; + len = USB_COMP_EP0_BUFSIZ - USB_DT_CONFIG_SIZE; /* write the config descriptor */ c = buf; c->bLength = USB_DT_CONFIG_SIZE; @@ -790,6 +759,7 @@ done: config->bConfigurationValue, status); return status; } +EXPORT_SYMBOL_GPL(usb_add_config); static void remove_config(struct usb_composite_dev *cdev, struct usb_configuration *config) @@ -889,10 +859,10 @@ static int lookup_string( static int get_string(struct usb_composite_dev *cdev, void *buf, u16 language, int id) { + struct usb_composite_driver *composite = cdev->driver; struct usb_configuration *c; struct usb_function *f; int len; - const char *str; /* Yes, not only is USB's I18N support probably more than most * folk will ever care about ... also, it's all supported here. @@ -932,26 +902,6 @@ static int get_string(struct usb_composite_dev *cdev, return s->bLength; } - /* Otherwise, look up and return a specified string. First - * check if the string has not been overridden. - */ - if (cdev->manufacturer_override == id) - str = iManufacturer ?: composite->iManufacturer ?: - composite_manufacturer; - else if (cdev->product_override == id) - str = iProduct ?: composite->iProduct; - else if (cdev->serial_override == id) - str = iSerialNumber ?: composite->iSerialNumber; - else - str = NULL; - if (str) { - struct usb_gadget_strings strings = { - .language = language, - .strings = &(struct usb_string) { 0xff, str } - }; - return usb_gadget_get_string(&strings, 0xff, buf); - } - /* String IDs are device-scoped, so we look up each string * table we're told about. These lookups are infrequent; * simpler-is-better here. @@ -1003,6 +953,7 @@ int usb_string_id(struct usb_composite_dev *cdev) } return -ENODEV; } +EXPORT_SYMBOL_GPL(usb_string_id); /** * usb_string_ids() - allocate unused string IDs in batch @@ -1034,6 +985,7 @@ int usb_string_ids_tab(struct usb_composite_dev *cdev, struct usb_string *str) return 0; } +EXPORT_SYMBOL_GPL(usb_string_ids_tab); /** * usb_string_ids_n() - allocate unused string IDs in batch @@ -1062,7 +1014,7 @@ int usb_string_ids_n(struct usb_composite_dev *c, unsigned n) c->next_string_id += n; return next + 1; } - +EXPORT_SYMBOL_GPL(usb_string_ids_n); /*-------------------------------------------------------------------------*/ @@ -1359,8 +1311,8 @@ static void composite_disconnect(struct usb_gadget *gadget) spin_lock_irqsave(&cdev->lock, flags); if (cdev->config) reset_config(cdev); - if (composite->disconnect) - composite->disconnect(cdev); + if (cdev->driver->disconnect) + cdev->driver->disconnect(cdev); spin_unlock_irqrestore(&cdev->lock, flags); } @@ -1396,35 +1348,67 @@ composite_unbind(struct usb_gadget *gadget) struct usb_configuration, list); remove_config(cdev, c); } - if (composite->unbind) - composite->unbind(cdev); + if (cdev->driver->unbind) + cdev->driver->unbind(cdev); if (cdev->req) { kfree(cdev->req->buf); usb_ep_free_request(gadget->ep0, cdev->req); } device_remove_file(&gadget->dev, &dev_attr_suspended); + kfree(cdev->def_manufacturer); kfree(cdev); set_gadget_data(gadget, NULL); - composite = NULL; } -static u8 override_id(struct usb_composite_dev *cdev, u8 *desc) +static void update_unchanged_dev_desc(struct usb_device_descriptor *new, + const struct usb_device_descriptor *old) { - if (!*desc) { - int ret = usb_string_id(cdev); - if (unlikely(ret < 0)) - WARNING(cdev, "failed to override string ID\n"); - else - *desc = ret; - } + __le16 idVendor; + __le16 idProduct; + __le16 bcdDevice; + u8 iSerialNumber; + u8 iManufacturer; + u8 iProduct; - return *desc; + /* + * these variables may have been set in + * usb_composite_overwrite_options() + */ + idVendor = new->idVendor; + idProduct = new->idProduct; + bcdDevice = new->bcdDevice; + iSerialNumber = new->iSerialNumber; + iManufacturer = new->iManufacturer; + iProduct = new->iProduct; + + *new = *old; + if (idVendor) + new->idVendor = idVendor; + if (idProduct) + new->idProduct = idProduct; + if (bcdDevice) + new->bcdDevice = bcdDevice; + else + new->bcdDevice = cpu_to_le16(get_default_bcdDevice()); + if (iSerialNumber) + new->iSerialNumber = iSerialNumber; + if (iManufacturer) + new->iManufacturer = iManufacturer; + if (iProduct) + new->iProduct = iProduct; } -static int composite_bind(struct usb_gadget *gadget) +static struct usb_composite_driver *to_cdriver(struct usb_gadget_driver *gdrv) +{ + return container_of(gdrv, struct usb_composite_driver, gadget_driver); +} + +static int composite_bind(struct usb_gadget *gadget, + struct usb_gadget_driver *gdriver) { struct usb_composite_dev *cdev; + struct usb_composite_driver *composite = to_cdriver(gdriver); int status = -ENOMEM; cdev = kzalloc(sizeof *cdev, GFP_KERNEL); @@ -1440,13 +1424,12 @@ static int composite_bind(struct usb_gadget *gadget) cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); if (!cdev->req) goto fail; - cdev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); + cdev->req->buf = kmalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); if (!cdev->req->buf) goto fail; cdev->req->complete = composite_setup_complete; gadget->ep0->driver_data = cdev; - cdev->bufsiz = USB_BUFSIZ; cdev->driver = composite; /* @@ -1467,49 +1450,11 @@ static int composite_bind(struct usb_gadget *gadget) * serial number), register function drivers, potentially update * power state and consumption, etc */ - status = composite_gadget_bind(cdev); + status = composite->bind(cdev); if (status < 0) goto fail; - cdev->desc = *composite->dev; - - /* standardized runtime overrides for device ID data */ - if (idVendor) - cdev->desc.idVendor = cpu_to_le16(idVendor); - else - idVendor = le16_to_cpu(cdev->desc.idVendor); - if (idProduct) - cdev->desc.idProduct = cpu_to_le16(idProduct); - else - idProduct = le16_to_cpu(cdev->desc.idProduct); - if (bcdDevice) - cdev->desc.bcdDevice = cpu_to_le16(bcdDevice); - else - bcdDevice = le16_to_cpu(cdev->desc.bcdDevice); - - /* string overrides */ - if (iManufacturer || !cdev->desc.iManufacturer) { - if (!iManufacturer && !composite->iManufacturer && - !*composite_manufacturer) - snprintf(composite_manufacturer, - sizeof composite_manufacturer, - "%s %s with %s", - init_utsname()->sysname, - init_utsname()->release, - gadget->name); - - cdev->manufacturer_override = - override_id(cdev, &cdev->desc.iManufacturer); - } - - if (iProduct || (!cdev->desc.iProduct && composite->iProduct)) - cdev->product_override = - override_id(cdev, &cdev->desc.iProduct); - - if (iSerialNumber || - (!cdev->desc.iSerialNumber && composite->iSerialNumber)) - cdev->serial_override = - override_id(cdev, &cdev->desc.iSerialNumber); + update_unchanged_dev_desc(&cdev->desc, composite->dev); /* has userspace failed to provide a serial number? */ if (composite->needs_serial && !cdev->desc.iSerialNumber) @@ -1546,8 +1491,8 @@ composite_suspend(struct usb_gadget *gadget) f->suspend(f); } } - if (composite->suspend) - composite->suspend(cdev); + if (cdev->driver->suspend) + cdev->driver->suspend(cdev); cdev->suspended = 1; @@ -1565,8 +1510,8 @@ composite_resume(struct usb_gadget *gadget) * suspend/resume callbacks? */ DBG(cdev, "resume\n"); - if (composite->resume) - composite->resume(cdev); + if (cdev->driver->resume) + cdev->driver->resume(cdev); if (cdev->config) { list_for_each_entry(f, &cdev->config->functions, list) { if (f->resume) @@ -1584,13 +1529,8 @@ composite_resume(struct usb_gadget *gadget) /*-------------------------------------------------------------------------*/ -static struct usb_gadget_driver composite_driver = { -#ifdef CONFIG_USB_GADGET_SUPERSPEED - .max_speed = USB_SPEED_SUPER, -#else - .max_speed = USB_SPEED_HIGH, -#endif - +static const struct usb_gadget_driver composite_driver_template = { + .bind = composite_bind, .unbind = composite_unbind, .setup = composite_setup, @@ -1623,25 +1563,26 @@ static struct usb_gadget_driver composite_driver = { * while it was binding. That would usually be done in order to wait for * some userspace participation. */ -int usb_composite_probe(struct usb_composite_driver *driver, - int (*bind)(struct usb_composite_dev *cdev)) +int usb_composite_probe(struct usb_composite_driver *driver) { - if (!driver || !driver->dev || !bind || composite) + struct usb_gadget_driver *gadget_driver; + + if (!driver || !driver->dev || !driver->bind) return -EINVAL; if (!driver->name) driver->name = "composite"; - if (!driver->iProduct) - driver->iProduct = driver->name; - composite_driver.function = (char *) driver->name; - composite_driver.driver.name = driver->name; - composite_driver.max_speed = - min_t(u8, composite_driver.max_speed, driver->max_speed); - composite = driver; - composite_gadget_bind = bind; - - return usb_gadget_probe_driver(&composite_driver, composite_bind); + + driver->gadget_driver = composite_driver_template; + gadget_driver = &driver->gadget_driver; + + gadget_driver->function = (char *) driver->name; + gadget_driver->driver.name = driver->name; + gadget_driver->max_speed = driver->max_speed; + + return usb_gadget_probe_driver(gadget_driver); } +EXPORT_SYMBOL_GPL(usb_composite_probe); /** * usb_composite_unregister() - unregister a composite driver @@ -1652,10 +1593,9 @@ int usb_composite_probe(struct usb_composite_driver *driver, */ void usb_composite_unregister(struct usb_composite_driver *driver) { - if (composite != driver) - return; - usb_gadget_unregister_driver(&composite_driver); + usb_gadget_unregister_driver(&driver->gadget_driver); } +EXPORT_SYMBOL_GPL(usb_composite_unregister); /** * usb_composite_setup_continue() - Continue with the control transfer @@ -1692,4 +1632,60 @@ void usb_composite_setup_continue(struct usb_composite_dev *cdev) spin_unlock_irqrestore(&cdev->lock, flags); } +EXPORT_SYMBOL_GPL(usb_composite_setup_continue); + +static char *composite_default_mfr(struct usb_gadget *gadget) +{ + char *mfr; + int len; + + len = snprintf(NULL, 0, "%s %s with %s", init_utsname()->sysname, + init_utsname()->release, gadget->name); + len++; + mfr = kmalloc(len, GFP_KERNEL); + if (!mfr) + return NULL; + snprintf(mfr, len, "%s %s with %s", init_utsname()->sysname, + init_utsname()->release, gadget->name); + return mfr; +} + +void usb_composite_overwrite_options(struct usb_composite_dev *cdev, + struct usb_composite_overwrite *covr) +{ + struct usb_device_descriptor *desc = &cdev->desc; + struct usb_gadget_strings *gstr = cdev->driver->strings[0]; + struct usb_string *dev_str = gstr->strings; + + if (covr->idVendor) + desc->idVendor = cpu_to_le16(covr->idVendor); + + if (covr->idProduct) + desc->idProduct = cpu_to_le16(covr->idProduct); + + if (covr->bcdDevice) + desc->bcdDevice = cpu_to_le16(covr->bcdDevice); + + if (covr->serial_number) { + desc->iSerialNumber = dev_str[USB_GADGET_SERIAL_IDX].id; + dev_str[USB_GADGET_SERIAL_IDX].s = covr->serial_number; + } + if (covr->manufacturer) { + desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; + dev_str[USB_GADGET_MANUFACTURER_IDX].s = covr->manufacturer; + + } else if (!strlen(dev_str[USB_GADGET_MANUFACTURER_IDX].s)) { + desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; + cdev->def_manufacturer = composite_default_mfr(cdev->gadget); + dev_str[USB_GADGET_MANUFACTURER_IDX].s = cdev->def_manufacturer; + } + + if (covr->product) { + desc->iProduct = dev_str[USB_GADGET_PRODUCT_IDX].id; + dev_str[USB_GADGET_PRODUCT_IDX].s = covr->product; + } +} +EXPORT_SYMBOL_GPL(usb_composite_overwrite_options); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index 7542a72ce51a..e3a98929d346 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -12,6 +12,7 @@ #include <linux/errno.h> #include <linux/slab.h> #include <linux/kernel.h> +#include <linux/module.h> #include <linux/list.h> #include <linux/string.h> #include <linux/device.h> @@ -53,7 +54,7 @@ usb_descriptor_fillbuf(void *buf, unsigned buflen, } return dest - (u8 *)buf; } - +EXPORT_SYMBOL_GPL(usb_descriptor_fillbuf); /** * usb_gadget_config_buf - builts a complete configuration descriptor @@ -106,6 +107,7 @@ int usb_gadget_config_buf( cp->bmAttributes |= USB_CONFIG_ATT_ONE; return len; } +EXPORT_SYMBOL_GPL(usb_gadget_config_buf); /** * usb_copy_descriptors - copy a vector of USB descriptors @@ -155,4 +157,4 @@ usb_copy_descriptors(struct usb_descriptor_header **src) return ret; } - +EXPORT_SYMBOL_GPL(usb_copy_descriptors); diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c index 19d7bb0df75a..87d165028162 100644 --- a/drivers/usb/gadget/dbgp.c +++ b/drivers/usb/gadget/dbgp.c @@ -13,9 +13,6 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -/* See comments in "zero.c" */ -#include "epautoconf.c" - #ifdef CONFIG_USB_G_DBGP_SERIAL #include "u_serial.c" #endif @@ -292,7 +289,8 @@ fail_1: return -ENODEV; } -static int __init dbgp_bind(struct usb_gadget *gadget) +static int __init dbgp_bind(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { int err, stp; @@ -402,9 +400,10 @@ fail: return err; } -static struct usb_gadget_driver dbgp_driver = { +static __refdata struct usb_gadget_driver dbgp_driver = { .function = "dbgp", .max_speed = USB_SPEED_HIGH, + .bind = dbgp_bind, .unbind = dbgp_unbind, .setup = dbgp_setup, .disconnect = dbgp_disconnect, @@ -416,7 +415,7 @@ static struct usb_gadget_driver dbgp_driver = { static int __init dbgp_init(void) { - return usb_gadget_probe_driver(&dbgp_driver, dbgp_bind); + return usb_gadget_probe_driver(&dbgp_driver); } static void __exit dbgp_exit(void) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index afdbb1cbf5d9..0f7541be28f3 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -909,6 +909,7 @@ static int dummy_udc_start(struct usb_gadget *g, dum->devstatus = 0; dum->driver = driver; + dum->gadget.dev.driver = &driver->driver; dev_dbg(udc_dev(dum), "binding gadget driver '%s'\n", driver->driver.name); return 0; @@ -923,6 +924,7 @@ static int dummy_udc_stop(struct usb_gadget *g, dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", driver->driver.name); + dum->gadget.dev.driver = NULL; dum->driver = NULL; return 0; diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 51f3d42f5a64..a777f7bd11b4 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -10,6 +10,7 @@ */ #include <linux/kernel.h> +#include <linux/module.h> #include <linux/init.h> #include <linux/types.h> #include <linux/device.h> @@ -22,17 +23,6 @@ #include "gadget_chips.h" - -/* we must assign addresses for configurable endpoints (like net2280) */ -static unsigned epnum; - -// #define MANY_ENDPOINTS -#ifdef MANY_ENDPOINTS -/* more than 15 configurable endpoints */ -static unsigned in_epnum; -#endif - - /* * This should work with endpoints from controller drivers sharing the * same endpoint naming convention. By example: @@ -176,16 +166,14 @@ ep_matches ( if (isdigit (ep->name [2])) { u8 num = simple_strtoul (&ep->name [2], NULL, 10); desc->bEndpointAddress |= num; -#ifdef MANY_ENDPOINTS } else if (desc->bEndpointAddress & USB_DIR_IN) { - if (++in_epnum > 15) + if (++gadget->in_epnum > 15) return 0; - desc->bEndpointAddress = USB_DIR_IN | in_epnum; -#endif + desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum; } else { - if (++epnum > 15) + if (++gadget->out_epnum > 15) return 0; - desc->bEndpointAddress |= epnum; + desc->bEndpointAddress |= gadget->out_epnum; } /* report (variable) full speed bulk maxpacket */ @@ -328,6 +316,7 @@ found_ep: ep->comp_desc = NULL; return ep; } +EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss); /** * usb_ep_autoconfig() - choose an endpoint matching the @@ -367,7 +356,7 @@ struct usb_ep *usb_ep_autoconfig( { return usb_ep_autoconfig_ss(gadget, desc, NULL); } - +EXPORT_SYMBOL_GPL(usb_ep_autoconfig); /** * usb_ep_autoconfig_reset - reset endpoint autoconfig state @@ -385,9 +374,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget) list_for_each_entry (ep, &gadget->ep_list, ep_list) { ep->driver_data = NULL; } -#ifdef MANY_ENDPOINTS - in_epnum = 0; -#endif - epnum = 0; + gadget->in_epnum = 0; + gadget->out_epnum = 0; } - +EXPORT_SYMBOL_GPL(usb_ep_autoconfig_reset); diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index a28f6ffcd0f3..18c3f423706e 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -14,8 +14,6 @@ /* #define VERBOSE_DEBUG */ #include <linux/kernel.h> -#include <linux/utsname.h> - #if defined USB_ETH_RNDIS # undef USB_ETH_RNDIS @@ -102,11 +100,6 @@ static inline bool has_rndis(void) * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_ecm.c" #include "f_subset.c" #ifdef USB_ETH_RNDIS @@ -117,6 +110,7 @@ static inline bool has_rndis(void) #include "u_ether.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); /* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! * Instead: allocate your own, using normal USB-IF procedures. @@ -195,17 +189,10 @@ static const struct usb_descriptor_header *otg_desc[] = { NULL, }; - -/* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = PREFIX DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = PREFIX DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -288,7 +275,6 @@ static struct usb_configuration eth_config_driver = { static int __init eth_bind(struct usb_composite_dev *cdev) { - int gcnum; struct usb_gadget *gadget = cdev->gadget; int status; @@ -323,42 +309,15 @@ static int __init eth_bind(struct usb_composite_dev *cdev) device_desc.bNumConfigurations = 2; } - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - else { - /* We assume that can_support_ecm() tells the truth; - * but if the controller isn't recognized at all then - * that assumption is a bit more likely to be wrong. - */ - dev_warn(&gadget->dev, - "controller '%s' not recognized; trying %s\n", - gadget->name, - eth_config_driver.label); - device_desc.bcdDevice = - cpu_to_le16(0x0300 | 0x0099); - } - - /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); - if (status < 0) - goto fail; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register our configuration(s); RNDIS first, if it's used */ if (has_rndis()) { @@ -372,6 +331,7 @@ static int __init eth_bind(struct usb_composite_dev *cdev) if (status < 0) goto fail; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", DRIVER_DESC); @@ -388,11 +348,12 @@ static int __exit eth_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver eth_driver = { +static __refdata struct usb_composite_driver eth_driver = { .name = "g_ether", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_SUPER, + .bind = eth_bind, .unbind = __exit_p(eth_unbind), }; @@ -402,7 +363,7 @@ MODULE_LICENSE("GPL"); static int __init init(void) { - return usb_composite_probe(ð_driver, eth_bind); + return usb_composite_probe(ð_driver); } module_init(init); diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 30b908f2a53d..95bc94f8e570 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -897,10 +897,7 @@ ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) return -ENOMEM; /* export host's Ethernet address in CDC format */ - snprintf(ecm->ethaddr, sizeof ecm->ethaddr, - "%02X%02X%02X%02X%02X%02X", - ethaddr[0], ethaddr[1], ethaddr[2], - ethaddr[3], ethaddr[4], ethaddr[5]); + snprintf(ecm->ethaddr, sizeof ecm->ethaddr, "%pm", ethaddr); ecm_string_defs[1].s = ecm->ethaddr; ecm->port.cdc_filter = DEFAULT_FILTER; diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c index 16a8b1c15c62..511e527178e2 100644 --- a/drivers/usb/gadget/f_hid.c +++ b/drivers/usb/gadget/f_hid.c @@ -10,7 +10,6 @@ */ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/module.h> #include <linux/hid.h> #include <linux/cdev.h> @@ -18,6 +17,7 @@ #include <linux/poll.h> #include <linux/uaccess.h> #include <linux/wait.h> +#include <linux/sched.h> #include <linux/usb/g_hid.h> static int major, minors; diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 4f1142efa6d1..3a7668bde3ef 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -213,7 +213,6 @@ #include <linux/spinlock.h> #include <linux/string.h> #include <linux/freezer.h> -#include <linux/utsname.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -349,7 +348,6 @@ struct fsg_config { const char *vendor_name; /* 8 characters or less */ const char *product_name; /* 16 characters or less */ - u16 release; char can_stall; }; @@ -2773,18 +2771,7 @@ buffhds_first_it: bh->next = common->buffhds; /* Prepare inquiryString */ - if (cfg->release != 0xffff) { - i = cfg->release; - } else { - i = usb_gadget_controller_number(gadget); - if (i >= 0) { - i = 0x0300 + i; - } else { - WARNING(common, "controller '%s' not recognized\n", - gadget->name); - i = 0x0399; - } - } + i = get_default_bcdDevice(); snprintf(common->inquiry_string, sizeof common->inquiry_string, "%-8s%-16s%04x", cfg->vendor_name ?: "Linux", /* Assume product name dependent on the first LUN */ @@ -3110,7 +3097,6 @@ fsg_config_from_params(struct fsg_config *cfg, /* Let MSF use defaults */ cfg->vendor_name = 0; cfg->product_name = 0; - cfg->release = 0xffff; cfg->ops = NULL; cfg->private_data = NULL; diff --git a/drivers/usb/gadget/f_midi.c b/drivers/usb/gadget/f_midi.c index 2f7e8f2930cc..8ed1259fe80d 100644 --- a/drivers/usb/gadget/f_midi.c +++ b/drivers/usb/gadget/f_midi.c @@ -21,7 +21,6 @@ #include <linux/kernel.h> #include <linux/slab.h> -#include <linux/utsname.h> #include <linux/device.h> #include <sound/core.h> diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index aab8eded045b..b651b529c67f 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -1346,10 +1346,7 @@ int __init ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) return -ENOMEM; /* export host's Ethernet address in CDC format */ - snprintf(ncm->ethaddr, sizeof ncm->ethaddr, - "%02X%02X%02X%02X%02X%02X", - ethaddr[0], ethaddr[1], ethaddr[2], - ethaddr[3], ethaddr[4], ethaddr[5]); + snprintf(ncm->ethaddr, sizeof ncm->ethaddr, "%pm", ethaddr); ncm_string_defs[1].s = ncm->ethaddr; spin_lock_init(&ncm->lock); diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index 5c1b68b63c98..3c126fde6e7e 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -795,7 +795,7 @@ static int sourcesink_setup(struct usb_configuration *c, u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); - req->length = USB_BUFSIZ; + req->length = USB_COMP_EP0_BUFSIZ; /* composite driver infrastructure handles everything except * the two control test requests. diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index 21ab474aca07..4060c0bd9785 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -436,10 +436,7 @@ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) return -ENOMEM; /* export host's Ethernet address in CDC format */ - snprintf(geth->ethaddr, sizeof geth->ethaddr, - "%02X%02X%02X%02X%02X%02X", - ethaddr[0], ethaddr[1], ethaddr[2], - ethaddr[3], ethaddr[4], ethaddr[5]); + snprintf(geth->ethaddr, sizeof geth->ethaddr, "%pm", ethaddr); geth_string_defs[1].s = geth->ethaddr; geth->port.cdc_filter = DEFAULT_FILTER; diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c index e7cc4de93e33..d3c6cffccb72 100644 --- a/drivers/usb/gadget/f_uac2.c +++ b/drivers/usb/gadget/f_uac2.c @@ -463,7 +463,7 @@ snd_fail: return err; } -static int __devexit snd_uac2_remove(struct platform_device *pdev) +static int snd_uac2_remove(struct platform_device *pdev) { struct snd_card *card = platform_get_drvdata(pdev); diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index a896d73f7a93..3f7d640b6758 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -251,26 +251,12 @@ #include <linux/freezer.h> #include <linux/utsname.h> +#include <linux/usb/composite.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include "gadget_chips.h" - - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - -/*-------------------------------------------------------------------------*/ - #define DRIVER_DESC "File-backed Storage Gadget" #define DRIVER_NAME "g_file_storage" #define DRIVER_VERSION "1 September 2010" @@ -3213,7 +3199,6 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget) static int __init check_parameters(struct fsg_dev *fsg) { int prot; - int gcnum; /* Store the default values */ mod_data.transport_type = USB_PR_BULK; @@ -3228,16 +3213,8 @@ static int __init check_parameters(struct fsg_dev *fsg) if (gadget_is_at91(fsg->gadget)) mod_data.can_stall = 0; - if (mod_data.release == 0xffff) { // Parameter wasn't set - gcnum = usb_gadget_controller_number(fsg->gadget); - if (gcnum >= 0) - mod_data.release = 0x0300 + gcnum; - else { - WARNING(fsg, "controller '%s' not recognized\n", - fsg->gadget->name); - mod_data.release = 0x0399; - } - } + if (mod_data.release == 0xffff) + mod_data.release = get_default_bcdDevice(); prot = simple_strtol(mod_data.protocol_parm, NULL, 0); @@ -3331,7 +3308,8 @@ static int __init check_parameters(struct fsg_dev *fsg) } -static int __init fsg_bind(struct usb_gadget *gadget) +static int __init fsg_bind(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { struct fsg_dev *fsg = the_fsg; int rc; @@ -3603,9 +3581,10 @@ static void fsg_resume(struct usb_gadget *gadget) /*-------------------------------------------------------------------------*/ -static struct usb_gadget_driver fsg_driver = { +static __refdata struct usb_gadget_driver fsg_driver = { .max_speed = USB_SPEED_SUPER, .function = (char *) fsg_string_product, + .bind = fsg_bind, .unbind = fsg_unbind, .disconnect = fsg_disconnect, .setup = fsg_setup, @@ -3653,7 +3632,8 @@ static int __init fsg_init(void) if ((rc = fsg_alloc()) != 0) return rc; fsg = the_fsg; - if ((rc = usb_gadget_probe_driver(&fsg_driver, fsg_bind)) != 0) + rc = usb_gadget_probe_driver(&fsg_driver); + if (rc != 0) kref_put(&fsg->ref, fsg_release); return rc; } diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 3def828f85e7..6ae70cba0c4a 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -1255,7 +1255,7 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on) } static int fsl_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int fsl_stop(struct usb_gadget_driver *driver); /* defined in gadget.h */ static struct usb_gadget_ops fsl_gadget_ops = { @@ -1951,7 +1951,7 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc) * Called by initialization code of gadget drivers *----------------------------------------------------------------*/ static int fsl_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { int retval = -ENODEV; unsigned long flags = 0; @@ -1976,7 +1976,7 @@ static int fsl_start(struct usb_gadget_driver *driver, spin_unlock_irqrestore(&udc_controller->lock, flags); /* bind udc driver to gadget driver */ - retval = bind(&udc_controller->gadget); + retval = bind(&udc_controller->gadget, driver); if (retval) { VDBG("bind to %s --> %d", driver->driver.name, retval); udc_controller->gadget.dev.driver = NULL; diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index cdd94540e1cd..72cd5e6719db 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -1311,7 +1311,7 @@ static void init_controller(struct fusb300 *fusb300) static struct fusb300 *the_controller; static int fusb300_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct fusb300 *fusb300 = the_controller; int retval; @@ -1339,7 +1339,7 @@ static int fusb300_udc_start(struct usb_gadget_driver *driver, goto error; } - retval = bind(&fusb300->gadget); + retval = bind(&fusb300->gadget, driver); if (retval) { pr_err("bind to driver error (%d)\n", retval); device_del(&fusb300->gadget.dev); diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index d3ace9002a6a..3953dd4d7186 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -13,7 +13,6 @@ #define pr_fmt(fmt) "g_ffs: " fmt #include <linux/module.h> -#include <linux/utsname.h> /* * kbuild is not very cooperative with respect to linking separately @@ -22,12 +21,6 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ - -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS # if defined USB_ETH_RNDIS # undef USB_ETH_RNDIS @@ -76,6 +69,8 @@ struct gfs_ffs_obj { struct ffs_data *ffs_data; }; +USB_GADGET_COMPOSITE_OPTIONS(); + static struct usb_device_descriptor gfs_dev_desc = { .bLength = sizeof gfs_dev_desc, .bDescriptorType = USB_DT_DEVICE, @@ -117,6 +112,9 @@ static const struct usb_descriptor_header *gfs_otg_desc[] = { /* String IDs are assigned dynamically */ static struct usb_string gfs_strings[] = { + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", #ifdef CONFIG_USB_FUNCTIONFS_RNDIS { .s = "FunctionFS + RNDIS" }, #endif @@ -163,13 +161,13 @@ static int gfs_bind(struct usb_composite_dev *cdev); static int gfs_unbind(struct usb_composite_dev *cdev); static int gfs_do_config(struct usb_configuration *c); -static struct usb_composite_driver gfs_driver = { +static __refdata struct usb_composite_driver gfs_driver = { .name = DRIVER_NAME, .dev = &gfs_dev_desc, .strings = gfs_dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = gfs_bind, .unbind = gfs_unbind, - .iProduct = DRIVER_DESC, }; static DEFINE_MUTEX(gfs_lock); @@ -268,7 +266,7 @@ static int functionfs_ready_callback(struct ffs_data *ffs) } gfs_registered = true; - ret = usb_composite_probe(&gfs_driver, gfs_bind); + ret = usb_composite_probe(&gfs_driver); if (unlikely(ret < 0)) gfs_registered = false; @@ -357,6 +355,7 @@ static int gfs_bind(struct usb_composite_dev *cdev) ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) goto error; + gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id; for (i = func_num; --i; ) { ret = functionfs_bind(ffs_tab[i].ffs_data, cdev); @@ -369,9 +368,10 @@ static int gfs_bind(struct usb_composite_dev *cdev) for (i = 0; i < ARRAY_SIZE(gfs_configurations); ++i) { struct gfs_configuration *c = gfs_configurations + i; + int sid = USB_GADGET_FIRST_AVAIL_IDX + i; - c->c.label = gfs_strings[i].s; - c->c.iConfiguration = gfs_strings[i].id; + c->c.label = gfs_strings[sid].s; + c->c.iConfiguration = gfs_strings[sid].id; c->c.bConfigurationValue = 1 + i; c->c.bmAttributes = USB_CONFIG_ATT_SELFPOWER; @@ -379,7 +379,7 @@ static int gfs_bind(struct usb_composite_dev *cdev) if (unlikely(ret < 0)) goto error_unbind; } - + usb_composite_overwrite_options(cdev, &coverwrite); return 0; error_unbind: diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index b8b3a3411218..bcd04bc66b98 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -15,6 +15,8 @@ #ifndef __GADGET_CHIPS_H #define __GADGET_CHIPS_H +#include <linux/usb/gadget.h> + /* * NOTICE: the entries below are alphabetical and should be kept * that way. @@ -25,106 +27,12 @@ * If you have forgotten the alphabetical order let VIM/EMACS * do that for you. */ -#define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name)) #define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name)) -#define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name)) -#define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name)) -#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name)) -#define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name)) -#define gadget_is_dwc3(g) (!strcmp("dwc3-gadget", (g)->name)) -#define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name)) -#define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name)) #define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name)) -#define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name)) -#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name)) -#define gadget_is_lpc32xx(g) (!strcmp("lpc32xx_udc", (g)->name)) -#define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name)) #define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name)) -#define gadget_is_net2272(g) (!strcmp("net2272", (g)->name)) #define gadget_is_net2280(g) (!strcmp("net2280", (g)->name)) -#define gadget_is_omap(g) (!strcmp("omap_udc", (g)->name)) -#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name)) #define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name)) #define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name)) -#define gadget_is_r8a66597(g) (!strcmp("r8a66597_udc", (g)->name)) -#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name)) -#define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name)) -#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name)) -#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name)) - -/** - * usb_gadget_controller_number - support bcdDevice id convention - * @gadget: the controller being driven - * - * Return a 2-digit BCD value associated with the peripheral controller, - * suitable for use as part of a bcdDevice value, or a negative error code. - * - * NOTE: this convention is purely optional, and has no meaning in terms of - * any USB specification. If you want to use a different convention in your - * gadget driver firmware -- maybe a more formal revision ID -- feel free. - * - * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!) - * to change their behavior accordingly. For example it might help avoiding - * some chip bug. - */ -static inline int usb_gadget_controller_number(struct usb_gadget *gadget) -{ - if (gadget_is_net2280(gadget)) - return 0x01; - else if (gadget_is_dummy(gadget)) - return 0x02; - else if (gadget_is_pxa(gadget)) - return 0x03; - else if (gadget_is_goku(gadget)) - return 0x06; - else if (gadget_is_omap(gadget)) - return 0x08; - else if (gadget_is_pxa27x(gadget)) - return 0x11; - else if (gadget_is_s3c2410(gadget)) - return 0x12; - else if (gadget_is_at91(gadget)) - return 0x13; - else if (gadget_is_imx(gadget)) - return 0x14; - else if (gadget_is_musbhdrc(gadget)) - return 0x16; - else if (gadget_is_atmel_usba(gadget)) - return 0x18; - else if (gadget_is_fsl_usb2(gadget)) - return 0x19; - else if (gadget_is_amd5536udc(gadget)) - return 0x20; - else if (gadget_is_m66592(gadget)) - return 0x21; - else if (gadget_is_fsl_qe(gadget)) - return 0x22; - else if (gadget_is_ci13xxx_pci(gadget)) - return 0x23; - else if (gadget_is_langwell(gadget)) - return 0x24; - else if (gadget_is_r8a66597(gadget)) - return 0x25; - else if (gadget_is_s3c_hsotg(gadget)) - return 0x26; - else if (gadget_is_pch(gadget)) - return 0x27; - else if (gadget_is_ci13xxx_msm(gadget)) - return 0x28; - else if (gadget_is_renesas_usbhs(gadget)) - return 0x29; - else if (gadget_is_s3c_hsudc(gadget)) - return 0x30; - else if (gadget_is_net2272(gadget)) - return 0x31; - else if (gadget_is_dwc3(gadget)) - return 0x32; - else if (gadget_is_lpc32xx(gadget)) - return 0x33; - - return -ENOENT; -} - /** * gadget_supports_altsettings - return true if altsettings work diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 681bd038b1d8..881aab86ae99 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -22,7 +22,6 @@ #include <linux/kernel.h> #include <linux/slab.h> -#include <linux/utsname.h> #include <linux/module.h> #include <linux/device.h> @@ -31,16 +30,13 @@ #include <sound/rawmidi.h> #include <linux/usb/ch9.h> +#include <linux/usb/composite.h> #include <linux/usb/gadget.h> #include <linux/usb/audio.h> #include <linux/usb/midi.h> #include "gadget_chips.h" -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" #include "f_midi.c" /*-------------------------------------------------------------------------*/ @@ -51,6 +47,8 @@ MODULE_LICENSE("GPL v2"); static const char shortname[] = "g_midi"; static const char longname[] = "MIDI Gadget"; +USB_GADGET_COMPOSITE_OPTIONS(); + static int index = SNDRV_DEFAULT_IDX1; module_param(index, int, S_IRUGO); MODULE_PARM_DESC(index, "Index value for the USB MIDI Gadget adapter."); @@ -85,9 +83,7 @@ MODULE_PARM_DESC(out_ports, "Number of MIDI output ports"); /* string IDs are assigned dynamically */ -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 -#define STRING_DESCRIPTION_IDX 2 +#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX static struct usb_device_descriptor device_desc = { .bLength = USB_DT_DEVICE_SIZE, @@ -102,8 +98,9 @@ static struct usb_device_descriptor device_desc = { }; static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = "Grey Innovation", - [STRING_PRODUCT_IDX].s = "MIDI Gadget", + [USB_GADGET_MANUFACTURER_IDX].s = "Grey Innovation", + [USB_GADGET_PRODUCT_IDX].s = "MIDI Gadget", + [USB_GADGET_SERIAL_IDX].s = "", [STRING_DESCRIPTION_IDX].s = "MIDI", { } /* end of list */ }; @@ -140,61 +137,35 @@ static int __init midi_bind_config(struct usb_configuration *c) static int __init midi_bind(struct usb_composite_dev *cdev) { - struct usb_gadget *gadget = cdev->gadget; - int gcnum, status; - - status = usb_string_id(cdev); - if (status < 0) - return status; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; + int status; - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) return status; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; - - /* config description */ - status = usb_string_id(cdev); - if (status < 0) - return status; - strings_dev[STRING_DESCRIPTION_IDX].id = status; - - midi_config.iConfiguration = status; - - gcnum = usb_gadget_controller_number(gadget); - if (gcnum < 0) { - /* gmidi is so simple (no altsettings) that - * it SHOULD NOT have problems with bulk-capable hardware. - * so warn about unrecognized controllers, don't panic. - */ - pr_warning("%s: controller '%s' not recognized\n", - __func__, gadget->name); - device_desc.bcdDevice = cpu_to_le16(0x9999); - } else { - device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); - } + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + midi_config.iConfiguration = strings_dev[STRING_DESCRIPTION_IDX].id; status = usb_add_config(cdev, &midi_config, midi_bind_config); if (status < 0) return status; - + usb_composite_overwrite_options(cdev, &coverwrite); pr_info("%s\n", longname); return 0; } -static struct usb_composite_driver midi_driver = { +static __refdata struct usb_composite_driver midi_driver = { .name = (char *) longname, .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = midi_bind, .unbind = __exit_p(midi_unbind), }; static int __init midi_init(void) { - return usb_composite_probe(&midi_driver, midi_bind); + return usb_composite_probe(&midi_driver); } module_init(midi_init); diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 9fd7886cfa9a..51037cb78604 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -994,7 +994,7 @@ static int goku_get_frame(struct usb_gadget *_gadget) } static int goku_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int goku_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops goku_ops = { @@ -1348,7 +1348,7 @@ static struct goku_udc *the_controller; * the driver might get unbound. */ static int goku_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct goku_udc *dev = the_controller; int retval; @@ -1368,7 +1368,7 @@ static int goku_start(struct usb_gadget_driver *driver, driver->driver.bus = NULL; dev->driver = driver; dev->gadget.dev.driver = &driver->driver; - retval = bind(&dev->gadget); + retval = bind(&dev->gadget, driver); if (retval) { DBG(dev, "bind to driver %s --> error %d\n", driver->driver.name, retval); diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c index 3493adf064f5..74130f6c12c0 100644 --- a/drivers/usb/gadget/hid.c +++ b/drivers/usb/gadget/hid.c @@ -15,7 +15,10 @@ #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/list.h> +#include <linux/module.h> +#include <linux/usb/composite.h> +#include "gadget_chips.h" #define DRIVER_DESC "HID Gadget" #define DRIVER_VERSION "2010/03/16" @@ -33,12 +36,6 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ - -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_hid.c" @@ -50,6 +47,7 @@ struct hidg_func_node { static LIST_HEAD(hidg_func_list); /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, @@ -92,15 +90,10 @@ static const struct usb_descriptor_header *otg_desc[] = { /* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -150,7 +143,7 @@ static int __init hid_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; struct list_head *tmp; - int status, gcnum, funcs = 0; + int status, funcs = 0; list_for_each(tmp, &hidg_func_list) funcs++; @@ -163,38 +156,22 @@ static int __init hid_bind(struct usb_composite_dev *cdev) if (status < 0) return status; - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - else - device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099); - - /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); - if (status < 0) - return status; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) return status; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register our configuration */ status = usb_add_config(cdev, &config_driver, do_config); if (status < 0) return status; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n"); return 0; @@ -242,11 +219,12 @@ static int __devexit hidg_plat_driver_remove(struct platform_device *pdev) /****************************** Some noise ******************************/ -static struct usb_composite_driver hidg_driver = { +static __refdata struct usb_composite_driver hidg_driver = { .name = "g_hid", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = hid_bind, .unbind = __exit_p(hid_unbind), }; @@ -272,7 +250,7 @@ static int __init hidg_init(void) if (status < 0) return status; - status = usb_composite_probe(&hidg_driver, hid_bind); + status = usb_composite_probe(&hidg_driver); if (status < 0) platform_driver_unregister(&hidg_plat_driver); diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index e58b16442971..4bb6d53f2de3 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -828,7 +828,6 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) if (value == 0) data->state = STATE_EP_ENABLED; break; -#ifdef CONFIG_USB_GADGET_DUALSPEED case USB_SPEED_HIGH: /* fails if caller didn't provide that descriptor... */ ep->desc = &data->hs_desc; @@ -836,7 +835,6 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) if (value == 0) data->state = STATE_EP_ENABLED; break; -#endif default: DBG(data->dev, "unconnected, %s init abandoned\n", data->name); @@ -1324,7 +1322,6 @@ static const struct file_operations ep0_io_operations = { * Unrecognized ep0 requests may be handled in user space. */ -#ifdef CONFIG_USB_GADGET_DUALSPEED static void make_qualifier (struct dev_data *dev) { struct usb_qualifier_descriptor qual; @@ -1347,7 +1344,6 @@ static void make_qualifier (struct dev_data *dev) memcpy (dev->rbuf, &qual, sizeof qual); } -#endif static int config_buf (struct dev_data *dev, u8 type, unsigned index) @@ -1427,7 +1423,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) dev->dev->bMaxPacketSize0 = dev->gadget->ep0->maxpacket; req->buf = dev->dev; break; -#ifdef CONFIG_USB_GADGET_DUALSPEED case USB_DT_DEVICE_QUALIFIER: if (!dev->hs_config) break; @@ -1437,7 +1432,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) break; case USB_DT_OTHER_SPEED_CONFIG: // FALLTHROUGH -#endif case USB_DT_CONFIG: value = config_buf (dev, w_value >> 8, @@ -1685,8 +1679,8 @@ gadgetfs_unbind (struct usb_gadget *gadget) static struct dev_data *the_device; -static int -gadgetfs_bind (struct usb_gadget *gadget) +static int gadgetfs_bind(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { struct dev_data *dev = the_device; @@ -1763,12 +1757,8 @@ gadgetfs_suspend (struct usb_gadget *gadget) } static struct usb_gadget_driver gadgetfs_driver = { -#ifdef CONFIG_USB_GADGET_DUALSPEED - .max_speed = USB_SPEED_HIGH, -#else - .max_speed = USB_SPEED_FULL, -#endif .function = (char *) driver_desc, + .bind = gadgetfs_bind, .unbind = gadgetfs_unbind, .setup = gadgetfs_setup, .disconnect = gadgetfs_disconnect, @@ -1783,7 +1773,8 @@ static struct usb_gadget_driver gadgetfs_driver = { static void gadgetfs_nop(struct usb_gadget *arg) { } -static int gadgetfs_probe (struct usb_gadget *gadget) +static int gadgetfs_probe(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { CHIP = gadget->name; return -EISNAM; @@ -1791,6 +1782,7 @@ static int gadgetfs_probe (struct usb_gadget *gadget) static struct usb_gadget_driver probe_driver = { .max_speed = USB_SPEED_HIGH, + .bind = gadgetfs_probe, .unbind = gadgetfs_nop, .setup = (void *)gadgetfs_nop, .disconnect = gadgetfs_nop, @@ -1900,7 +1892,12 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) /* triggers gadgetfs_bind(); then we can enumerate. */ spin_unlock_irq (&dev->lock); - value = usb_gadget_probe_driver(&gadgetfs_driver, gadgetfs_bind); + if (dev->hs_config) + gadgetfs_driver.max_speed = USB_SPEED_HIGH; + else + gadgetfs_driver.max_speed = USB_SPEED_FULL; + + value = usb_gadget_probe_driver(&gadgetfs_driver); if (value != 0) { kfree (dev->buf); dev->buf = NULL; @@ -2039,7 +2036,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent) return -ESRCH; /* fake probe to determine $CHIP */ - (void) usb_gadget_probe_driver(&probe_driver, gadgetfs_probe); + usb_gadget_probe_driver(&probe_driver); if (!CHIP) return -ENODEV; diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index f1ec99e69cb7..f696fb9b136d 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -141,8 +141,6 @@ struct lpc32xx_ep { u32 totalints; bool wedge; - - const struct usb_endpoint_descriptor *desc; }; /* @@ -556,10 +554,8 @@ static int proc_udc_show(struct seq_file *s, void *unused) if (udc->enabled && udc->vbus) { proc_ep_show(s, &udc->ep[0]); - list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { - if (ep->desc) - proc_ep_show(s, ep); - } + list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) + proc_ep_show(s, ep); } spin_unlock_irqrestore(&udc->lock, flags); @@ -1453,7 +1449,6 @@ static void udc_reinit(struct lpc32xx_udc *udc) if (i != 0) list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); - ep->desc = NULL; ep->ep.maxpacket = ep->maxpacket; INIT_LIST_HEAD(&ep->queue); ep->req_pending = 0; @@ -1515,7 +1510,7 @@ static void nuke(struct lpc32xx_ep *ep, int status) done(ep, req, status); } - if (ep->desc && status == -ESHUTDOWN) { + if (status == -ESHUTDOWN) { uda_disable_hwepint(ep->udc, ep->hwep_num); udc_disable_hwep(ep->udc, ep->hwep_num); } @@ -1658,9 +1653,6 @@ static int lpc32xx_ep_disable(struct usb_ep *_ep) nuke(ep, -ESHUTDOWN); - /* restore the endpoint's pristine config */ - ep->desc = NULL; - /* Clear all DMA statuses for this EP */ udc_ep_dma_disable(udc, ep->hwep_num); writel(1 << ep->hwep_num, USBD_EOTINTCLR(udc->udp_baseaddr)); @@ -1696,7 +1688,7 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep, unsigned long flags; /* Verify EP data */ - if ((!_ep) || (!ep) || (!desc) || (ep->desc) || + if ((!_ep) || (!ep) || (!desc) || (desc->bDescriptorType != USB_DT_ENDPOINT)) { dev_dbg(udc->dev, "bad ep or descriptor\n"); return -EINVAL; @@ -1754,7 +1746,6 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep, /* Initialize endpoint to match the selected descriptor */ ep->is_in = (desc->bEndpointAddress & USB_DIR_IN) != 0; - ep->desc = desc; ep->ep.maxpacket = maxpacket; /* Map hardware endpoint from base and direction */ @@ -1837,7 +1828,7 @@ static int lpc32xx_ep_queue(struct usb_ep *_ep, udc = ep->udc; - if (!_ep || (!ep->desc && ep->hwep_num_base != 0)) { + if (!_ep) { dev_dbg(udc->dev, "invalid ep\n"); return -EINVAL; } @@ -1976,7 +1967,7 @@ static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value) struct lpc32xx_udc *udc = ep->udc; unsigned long flags; - if ((!ep) || (ep->desc == NULL) || (ep->hwep_num <= 1)) + if ((!ep) || (ep->hwep_num <= 1)) return -EINVAL; /* Don't halt an IN EP */ @@ -2262,7 +2253,7 @@ static int udc_get_status(struct lpc32xx_udc *udc, u16 reqtype, u16 wIndex) case USB_RECIP_ENDPOINT: tmp = wIndex & USB_ENDPOINT_NUMBER_MASK; ep = &udc->ep[tmp]; - if ((tmp == 0) || (tmp >= NUM_ENDPOINTS) || (tmp && !ep->desc)) + if ((tmp == 0) || (tmp >= NUM_ENDPOINTS)) return -EOPNOTSUPP; if (wIndex & USB_DIR_IN) { @@ -2599,9 +2590,8 @@ static int lpc32xx_pullup(struct usb_gadget *gadget, int is_on) return 0; } -static int lpc32xx_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); -static int lpc32xx_stop(struct usb_gadget_driver *driver); +static int lpc32xx_start(struct usb_gadget *, struct usb_gadget_driver *); +static int lpc32xx_stop(struct usb_gadget *, struct usb_gadget_driver *); static const struct usb_gadget_ops lpc32xx_udc_ops = { .get_frame = lpc32xx_get_frame, @@ -2609,8 +2599,8 @@ static const struct usb_gadget_ops lpc32xx_udc_ops = { .set_selfpowered = lpc32xx_set_selfpowered, .vbus_session = lpc32xx_vbus_session, .pullup = lpc32xx_pullup, - .start = lpc32xx_start, - .stop = lpc32xx_stop, + .udc_start = lpc32xx_start, + .udc_stop = lpc32xx_stop, }; static void nop_release(struct device *dev) @@ -2618,10 +2608,9 @@ static void nop_release(struct device *dev) /* nothing to free */ } -static struct lpc32xx_udc controller = { +static const struct lpc32xx_udc controller_template = { .gadget = { .ops = &lpc32xx_udc_ops, - .ep0 = &controller.ep[0].ep, .name = driver_name, .dev = { .init_name = "gadget", @@ -2633,7 +2622,6 @@ static struct lpc32xx_udc controller = { .name = "ep0", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 0, .hwep_num = 0, /* Can be 0 or 1, has special handling */ @@ -2645,7 +2633,6 @@ static struct lpc32xx_udc controller = { .name = "ep1-int", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 2, .hwep_num = 0, /* 2 or 3, will be set later */ @@ -2657,7 +2644,6 @@ static struct lpc32xx_udc controller = { .name = "ep2-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 4, .hwep_num = 0, /* 4 or 5, will be set later */ @@ -2669,7 +2655,6 @@ static struct lpc32xx_udc controller = { .name = "ep3-iso", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 1023, .hwep_num_base = 6, .hwep_num = 0, /* 6 or 7, will be set later */ @@ -2681,7 +2666,6 @@ static struct lpc32xx_udc controller = { .name = "ep4-int", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 8, .hwep_num = 0, /* 8 or 9, will be set later */ @@ -2693,7 +2677,6 @@ static struct lpc32xx_udc controller = { .name = "ep5-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 10, .hwep_num = 0, /* 10 or 11, will be set later */ @@ -2705,7 +2688,6 @@ static struct lpc32xx_udc controller = { .name = "ep6-iso", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 1023, .hwep_num_base = 12, .hwep_num = 0, /* 12 or 13, will be set later */ @@ -2717,7 +2699,6 @@ static struct lpc32xx_udc controller = { .name = "ep7-int", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 14, .hwep_num = 0, @@ -2729,7 +2710,6 @@ static struct lpc32xx_udc controller = { .name = "ep8-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 16, .hwep_num = 0, @@ -2741,7 +2721,6 @@ static struct lpc32xx_udc controller = { .name = "ep9-iso", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 1023, .hwep_num_base = 18, .hwep_num = 0, @@ -2753,7 +2732,6 @@ static struct lpc32xx_udc controller = { .name = "ep10-int", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 20, .hwep_num = 0, @@ -2765,7 +2743,6 @@ static struct lpc32xx_udc controller = { .name = "ep11-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 22, .hwep_num = 0, @@ -2777,7 +2754,6 @@ static struct lpc32xx_udc controller = { .name = "ep12-iso", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 1023, .hwep_num_base = 24, .hwep_num = 0, @@ -2789,7 +2765,6 @@ static struct lpc32xx_udc controller = { .name = "ep13-int", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 26, .hwep_num = 0, @@ -2801,7 +2776,6 @@ static struct lpc32xx_udc controller = { .name = "ep14-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 64, .hwep_num_base = 28, .hwep_num = 0, @@ -2813,7 +2787,6 @@ static struct lpc32xx_udc controller = { .name = "ep15-bulk", .ops = &lpc32xx_ep_ops, }, - .udc = &controller, .maxpacket = 1023, .hwep_num_base = 30, .hwep_num = 0, @@ -2987,14 +2960,13 @@ static irqreturn_t lpc32xx_usb_vbus_irq(int irq, void *_udc) return IRQ_HANDLED; } -static int lpc32xx_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) +static int lpc32xx_start(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { - struct lpc32xx_udc *udc = &controller; - int retval, i; + struct lpc32xx_udc *udc = to_udc(gadget); + int i; - if (!driver || driver->max_speed < USB_SPEED_FULL || - !bind || !driver->setup) { + if (!driver || driver->max_speed < USB_SPEED_FULL || !driver->setup) { dev_err(udc->dev, "bad parameter.\n"); return -EINVAL; } @@ -3011,18 +2983,6 @@ static int lpc32xx_start(struct usb_gadget_driver *driver, udc->selfpowered = 1; udc->vbus = 0; - retval = bind(&udc->gadget); - if (retval) { - dev_err(udc->dev, "bind() returned %d\n", retval); - udc->enabled = 0; - udc->selfpowered = 0; - udc->driver = NULL; - udc->gadget.dev.driver = NULL; - return retval; - } - - dev_dbg(udc->dev, "bound to %s\n", driver->driver.name); - /* Force VBUS process once to check for cable insertion */ udc->last_vbus = udc->vbus = 0; schedule_work(&udc->vbus_job); @@ -3034,22 +2994,19 @@ static int lpc32xx_start(struct usb_gadget_driver *driver, return 0; } -static int lpc32xx_stop(struct usb_gadget_driver *driver) +static int lpc32xx_stop(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) { int i; - struct lpc32xx_udc *udc = &controller; + struct lpc32xx_udc *udc = to_udc(gadget); - if (!driver || driver != udc->driver || !driver->unbind) + if (!driver || driver != udc->driver) return -EINVAL; - /* Disable USB pullup */ - isp1301_pullup_enable(udc, 0, 1); - for (i = IRQ_USB_LP; i <= IRQ_USB_ATX; i++) disable_irq(udc->udp_irq[i]); if (udc->clocked) { - spin_lock(&udc->lock); stop_activity(udc); spin_unlock(&udc->lock); @@ -3069,20 +3026,16 @@ static int lpc32xx_stop(struct usb_gadget_driver *driver) } udc->enabled = 0; - pullup(udc, 0); - - driver->unbind(&udc->gadget); udc->gadget.dev.driver = NULL; udc->driver = NULL; - dev_dbg(udc->dev, "unbound from %s\n", driver->driver.name); return 0; } static void lpc32xx_udc_shutdown(struct platform_device *dev) { /* Force disconnect on reboot */ - struct lpc32xx_udc *udc = &controller; + struct lpc32xx_udc *udc = platform_get_drvdata(dev); pullup(udc, 0); } @@ -3120,12 +3073,21 @@ static u64 lpc32xx_usbd_dmamask = ~(u32) 0x7F; static int __init lpc32xx_udc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct lpc32xx_udc *udc = &controller; + struct lpc32xx_udc *udc; int retval, i; struct resource *res; dma_addr_t dma_handle; struct device_node *isp1301_node; + udc = kzalloc(sizeof(*udc), GFP_KERNEL); + if (!udc) + return -ENOMEM; + + memcpy(udc, &controller_template, sizeof(*udc)); + for (i = 0; i <= 15; i++) + udc->ep[i].udc = udc; + udc->gadget.ep0 = &udc->ep[0].ep; + /* init software state */ udc->gadget.dev.parent = dev; udc->pdev = pdev; @@ -3140,8 +3102,10 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) } udc->isp1301_i2c_client = isp1301_get_client(isp1301_node); - if (!udc->isp1301_i2c_client) - return -EPROBE_DEFER; + if (!udc->isp1301_i2c_client) { + retval = -EPROBE_DEFER; + goto phy_fail; + } dev_info(udc->dev, "ISP1301 I2C device at address 0x%x\n", udc->isp1301_i2c_client->addr); @@ -3160,8 +3124,10 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) * IORESOURCE_IRQ, USB transceiver interrupt number */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENXIO; + if (!res) { + retval = -ENXIO; + goto resource_fail; + } spin_lock_init(&udc->lock); @@ -3171,7 +3137,8 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) if (udc->udp_irq[i] < 0) { dev_err(udc->dev, "irq resource %d not available!\n", i); - return udc->udp_irq[i]; + retval = udc->udp_irq[i]; + goto irq_fail; } } @@ -3179,7 +3146,8 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) udc->io_p_size = resource_size(res); if (!request_mem_region(udc->io_p_start, udc->io_p_size, driver_name)) { dev_err(udc->dev, "someone's using UDC memory\n"); - return -EBUSY; + retval = -EBUSY; + goto request_mem_region_fail; } udc->udp_baseaddr = ioremap(udc->io_p_start, udc->io_p_size); @@ -3208,7 +3176,7 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) udc->usb_otg_clk = clk_get(&pdev->dev, "ck_usb_otg"); if (IS_ERR(udc->usb_otg_clk)) { dev_err(udc->dev, "failed to acquire USB otg clock\n"); - retval = PTR_ERR(udc->usb_slv_clk); + retval = PTR_ERR(udc->usb_otg_clk); goto usb_otg_clk_get_fail; } @@ -3376,7 +3344,11 @@ pll_get_fail: io_map_fail: release_mem_region(udc->io_p_start, udc->io_p_size); dev_err(udc->dev, "%s probe failed, %d\n", driver_name, retval); - +request_mem_region_fail: +irq_fail: +resource_fail: +phy_fail: + kfree(udc); return retval; } @@ -3414,6 +3386,7 @@ static int __devexit lpc32xx_udc_remove(struct platform_device *pdev) clk_put(udc->usb_pll_clk); iounmap(udc->udp_baseaddr); release_mem_region(udc->io_p_start, udc->io_p_size); + kfree(udc); return 0; } diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index cf6bd626f3fe..b6401f1b56ce 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1466,7 +1466,7 @@ static struct usb_ep_ops m66592_ep_ops = { static struct m66592 *the_controller; static int m66592_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct m66592 *m66592 = the_controller; int retval; @@ -1492,7 +1492,7 @@ static int m66592_start(struct usb_gadget_driver *driver, goto error; } - retval = bind(&m66592->gadget); + retval = bind(&m66592->gadget, driver); if (retval) { pr_err("bind to driver error (%d)\n", retval); device_del(&m66592->gadget.dev); diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c index 1f376eba31f6..080e577773d5 100644 --- a/drivers/usb/gadget/mass_storage.c +++ b/drivers/usb/gadget/mass_storage.c @@ -29,9 +29,8 @@ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/usb/ch9.h> - +#include <linux/module.h> /*-------------------------------------------------------------------------*/ @@ -47,14 +46,10 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ - -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" #include "f_mass_storage.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); static struct usb_device_descriptor msg_device_desc = { .bLength = sizeof msg_device_desc, @@ -85,6 +80,22 @@ static const struct usb_descriptor_header *otg_desc[] = { NULL, }; +static struct usb_string strings_dev[] = { + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab_dev = { + .language = 0x0409, /* en-us */ + .strings = strings_dev, +}; + +static struct usb_gadget_strings *dev_strings[] = { + &stringtab_dev, + NULL, +}; /****************************** Configurations ******************************/ @@ -143,10 +154,15 @@ static int __init msg_bind(struct usb_composite_dev *cdev) { int status; - status = usb_add_config(cdev, &msg_config_driver, msg_do_config); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) return status; + msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + status = usb_add_config(cdev, &msg_config_driver, msg_do_config); + if (status < 0) + return status; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&cdev->gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n"); set_bit(0, &msg_registered); @@ -156,12 +172,13 @@ static int __init msg_bind(struct usb_composite_dev *cdev) /****************************** Some noise ******************************/ -static struct usb_composite_driver msg_driver = { +static __refdata struct usb_composite_driver msg_driver = { .name = "g_mass_storage", .dev = &msg_device_desc, - .iProduct = DRIVER_DESC, .max_speed = USB_SPEED_SUPER, .needs_serial = 1, + .strings = dev_strings, + .bind = msg_bind, }; MODULE_DESCRIPTION(DRIVER_DESC); @@ -170,7 +187,7 @@ MODULE_LICENSE("GPL"); static int __init msg_init(void) { - return usb_composite_probe(&msg_driver, msg_bind); + return usb_composite_probe(&msg_driver); } module_init(msg_init); diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index c37fb33a3d1b..88472bf7dbb7 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -14,10 +14,8 @@ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/module.h> - #if defined USB_ETH_RNDIS # undef USB_ETH_RNDIS #endif @@ -42,12 +40,6 @@ MODULE_LICENSE("GPL"); * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ - -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_mass_storage.c" #include "u_serial.c" @@ -61,7 +53,7 @@ MODULE_LICENSE("GPL"); #endif #include "u_ether.c" - +USB_GADGET_COMPOSITE_OPTIONS(); /***************************** Device Descriptor ****************************/ @@ -112,21 +104,16 @@ static const struct usb_descriptor_header *otg_desc[] = { enum { -#ifdef CONFIG_USB_G_MULTI_RNDIS - MULTI_STRING_RNDIS_CONFIG_IDX, -#endif -#ifdef CONFIG_USB_G_MULTI_CDC + MULTI_STRING_RNDIS_CONFIG_IDX = USB_GADGET_FIRST_AVAIL_IDX, MULTI_STRING_CDC_CONFIG_IDX, -#endif }; static struct usb_string strings_dev[] = { -#ifdef CONFIG_USB_G_MULTI_RNDIS + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", [MULTI_STRING_RNDIS_CONFIG_IDX].s = "Multifunction with RNDIS", -#endif -#ifdef CONFIG_USB_G_MULTI_CDC [MULTI_STRING_CDC_CONFIG_IDX].s = "Multifunction with CDC ECM", -#endif { } /* end of list */ }; @@ -260,7 +247,7 @@ static int cdc_config_register(struct usb_composite_dev *cdev) static int __ref multi_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; - int status, gcnum; + int status; if (!can_support_ecm(cdev->gadget)) { dev_err(&gadget->dev, "controller '%s' not usable\n", @@ -288,19 +275,11 @@ static int __ref multi_bind(struct usb_composite_dev *cdev) } } - /* set bcdDevice */ - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) { - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - } else { - WARNING(cdev, "controller '%s' not recognized\n", gadget->name); - device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099); - } - /* allocate string IDs */ status = usb_string_ids_tab(cdev, strings_dev); if (unlikely(status < 0)) goto fail2; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register configurations */ status = rndis_config_register(cdev); @@ -310,6 +289,7 @@ static int __ref multi_bind(struct usb_composite_dev *cdev) status = cdc_config_register(cdev); if (unlikely(status < 0)) goto fail2; + usb_composite_overwrite_options(cdev, &coverwrite); /* we're done */ dev_info(&gadget->dev, DRIVER_DESC "\n"); @@ -338,20 +318,20 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev) /****************************** Some noise ******************************/ -static struct usb_composite_driver multi_driver = { +static __refdata struct usb_composite_driver multi_driver = { .name = "g_multi", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = multi_bind, .unbind = __exit_p(multi_unbind), - .iProduct = DRIVER_DESC, .needs_serial = 1, }; static int __init multi_init(void) { - return usb_composite_probe(&multi_driver, multi_bind); + return usb_composite_probe(&multi_driver); } module_init(multi_init); diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 75db2c306cea..ea45224f78c8 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -51,9 +51,8 @@ #define EPSTATUS_TIMEOUT 10000 #define PRIME_TIMEOUT 10000 #define READSAFE_TIMEOUT 1000 -#define DTD_TIMEOUT 1000 -#define LOOPS_USEC_SHIFT 4 +#define LOOPS_USEC_SHIFT 1 #define LOOPS_USEC (1 << LOOPS_USEC_SHIFT) #define LOOPS(timeout) ((timeout) >> LOOPS_USEC_SHIFT) @@ -64,7 +63,6 @@ static const char driver_desc[] = DRIVER_DESC; /* controller device global variable */ static struct mv_udc *the_controller; -int mv_usb_otgsc; static void nuke(struct mv_ep *ep, int status); static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver); @@ -357,17 +355,24 @@ done: return retval; } - static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length, dma_addr_t *dma, int *is_last) { - u32 temp; struct mv_dtd *dtd; struct mv_udc *udc; + struct mv_dqh *dqh; + u32 temp, mult = 0; /* how big will this transfer be? */ - *length = min(req->req.length - req->req.actual, - (unsigned)EP_MAX_LENGTH_TRANSFER); + if (usb_endpoint_xfer_isoc(req->ep->ep.desc)) { + dqh = req->ep->dqh; + mult = (dqh->max_packet_length >> EP_QUEUE_HEAD_MULT_POS) + & 0x3; + *length = min(req->req.length - req->req.actual, + (unsigned)(mult * req->ep->ep.maxpacket)); + } else + *length = min(req->req.length - req->req.actual, + (unsigned)EP_MAX_LENGTH_TRANSFER); udc = req->ep->udc; @@ -375,7 +380,7 @@ static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length, * Be careful that no _GFP_HIGHMEM is set, * or we can not use dma_to_virt */ - dtd = dma_pool_alloc(udc->dtd_pool, GFP_KERNEL, dma); + dtd = dma_pool_alloc(udc->dtd_pool, GFP_ATOMIC, dma); if (dtd == NULL) return dtd; @@ -409,6 +414,8 @@ static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length, if (*is_last && !req->req.no_interrupt) temp |= DTD_IOC; + temp |= mult << 10; + dtd->size_ioc_sts = temp; mb(); @@ -708,6 +715,7 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) struct mv_req *req = container_of(_req, struct mv_req, req); struct mv_udc *udc = ep->udc; unsigned long flags; + int retval; /* catch various bogus parameters */ if (!_req || !req->req.complete || !req->req.buf @@ -719,10 +727,6 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) dev_err(&udc->dev->dev, "%s, bad ep", __func__); return -EINVAL; } - if (ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) { - if (req->req.length > ep->ep.maxpacket) - return -EMSGSIZE; - } udc = ep->udc; if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) @@ -755,15 +759,17 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) /* build dtds and push them to device queue */ if (!req_to_dtd(req)) { - int retval; retval = queue_dtd(ep, req); if (retval) { spin_unlock_irqrestore(&udc->lock, flags); - return retval; + dev_err(&udc->dev->dev, "Failed to queue dtd\n"); + goto err_unmap_dma; } } else { spin_unlock_irqrestore(&udc->lock, flags); - return -ENOMEM; + dev_err(&udc->dev->dev, "Failed to dma_pool_alloc\n"); + retval = -ENOMEM; + goto err_unmap_dma; } /* Update ep0 state */ @@ -775,6 +781,22 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) spin_unlock_irqrestore(&udc->lock, flags); return 0; + +err_unmap_dma: + if (req->mapped) { + dma_unmap_single(ep->udc->gadget.dev.parent, + req->req.dma, req->req.length, + ((ep_dir(ep) == EP_DIR_IN) ? + DMA_TO_DEVICE : DMA_FROM_DEVICE)); + req->req.dma = DMA_ADDR_INVALID; + req->mapped = 0; + } else + dma_sync_single_for_cpu(ep->udc->gadget.dev.parent, + req->req.dma, req->req.length, + ((ep_dir(ep) == EP_DIR_IN) ? + DMA_TO_DEVICE : DMA_FROM_DEVICE)); + + return retval; } static void mv_prime_ep(struct mv_ep *ep, struct mv_req *req) @@ -1065,7 +1087,7 @@ static int udc_reset(struct mv_udc *udc) tmp |= USBMODE_CTRL_MODE_DEVICE; /* turn setup lockout off, require setup tripwire in usbcmd */ - tmp |= USBMODE_SETUP_LOCK_OFF | USBMODE_STREAM_DISABLE; + tmp |= USBMODE_SETUP_LOCK_OFF; writel(tmp, &udc->op_regs->usbmode); @@ -1199,12 +1221,16 @@ static int mv_udc_vbus_session(struct usb_gadget *gadget, int is_active) udc_start(udc); } } else if (udc->driver && udc->softconnect) { + if (!udc->active) + goto out; + /* stop all the transfer in queue*/ stop_activity(udc, udc->driver); udc_stop(udc); mv_udc_disable(udc); } +out: spin_unlock_irqrestore(&udc->lock, flags); return retval; } @@ -1243,7 +1269,7 @@ static int mv_udc_pullup(struct usb_gadget *gadget, int is_on) } static int mv_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int mv_udc_stop(struct usb_gadget_driver *driver); /* device controller usb_gadget_ops structure */ static const struct usb_gadget_ops mv_ops = { @@ -1348,7 +1374,7 @@ static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver) } static int mv_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct mv_udc *udc = the_controller; int retval = 0; @@ -1373,7 +1399,7 @@ static int mv_udc_start(struct usb_gadget_driver *driver, spin_unlock_irqrestore(&udc->lock, flags); - retval = bind(&udc->gadget); + retval = bind(&udc->gadget, driver); if (retval) { dev_err(&udc->dev->dev, "bind to driver %s --> %d\n", driver->driver.name, retval); @@ -1499,15 +1525,17 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty) } /* prime the data phase */ - if (!req_to_dtd(req)) + if (!req_to_dtd(req)) { retval = queue_dtd(ep, req); - else{ /* no mem */ + if (retval) { + dev_err(&udc->dev->dev, + "Failed to queue dtd when prime status\n"); + goto out; + } + } else{ /* no mem */ retval = -ENOMEM; - goto out; - } - - if (retval) { - dev_err(&udc->dev->dev, "response error on GET_STATUS request\n"); + dev_err(&udc->dev->dev, + "Failed to dma_pool_alloc when prime status\n"); goto out; } @@ -1515,6 +1543,15 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty) return 0; out: + if (req->mapped) { + dma_unmap_single(ep->udc->gadget.dev.parent, + req->req.dma, req->req.length, + ((ep_dir(ep) == EP_DIR_IN) ? + DMA_TO_DEVICE : DMA_FROM_DEVICE)); + req->req.dma = DMA_ADDR_INVALID; + req->mapped = 0; + } + return retval; } @@ -2468,9 +2505,11 @@ static void mv_udc_shutdown(struct platform_device *dev) u32 mode; /* reset controller mode to IDLE */ + mv_udc_enable(udc); mode = readl(&udc->op_regs->usbmode); mode &= ~3; writel(mode, &udc->op_regs->usbmode); + mv_udc_disable(udc); } static struct platform_driver udc_driver = { diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c index 89530034dff1..a22ad9af0565 100644 --- a/drivers/usb/gadget/ncm.c +++ b/drivers/usb/gadget/ncm.c @@ -20,8 +20,8 @@ /* #define VERBOSE_DEBUG */ #include <linux/kernel.h> -#include <linux/utsname.h> - +#include <linux/module.h> +#include <linux/usb/composite.h> #include "u_ether.h" @@ -36,11 +36,6 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_ncm.c" #include "u_ether.c" @@ -57,6 +52,7 @@ #define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */ /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, @@ -97,17 +93,11 @@ static const struct usb_descriptor_header *otg_desc[] = { NULL, }; - /* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 - -static char manufacturer[50]; - static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, + [USB_GADGET_SERIAL_IDX].s = "", { } /* end of list */ }; @@ -149,7 +139,6 @@ static struct usb_configuration ncm_config_driver = { static int __init gncm_bind(struct usb_composite_dev *cdev) { - int gcnum; struct usb_gadget *gadget = cdev->gadget; int status; @@ -158,48 +147,22 @@ static int __init gncm_bind(struct usb_composite_dev *cdev) if (status < 0) return status; - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); - else { - /* We assume that can_support_ecm() tells the truth; - * but if the controller isn't recognized at all then - * that assumption is a bit more likely to be wrong. - */ - dev_warn(&gadget->dev, - "controller '%s' not recognized; trying %s\n", - gadget->name, - ncm_config_driver.label); - device_desc.bcdDevice = - cpu_to_le16(0x0300 | 0x0099); - } - - /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - /* device descriptor strings: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); - if (status < 0) - goto fail; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail; - strings_dev[STRING_PRODUCT_IDX].id = status; - device_desc.iProduct = status; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; status = usb_add_config(cdev, &ncm_config_driver, ncm_do_config); if (status < 0) goto fail; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s\n", DRIVER_DESC); return 0; @@ -215,11 +178,12 @@ static int __exit gncm_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver ncm_driver = { +static __refdata struct usb_composite_driver ncm_driver = { .name = "g_ncm", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = gncm_bind, .unbind = __exit_p(gncm_unbind), }; @@ -229,7 +193,7 @@ MODULE_LICENSE("GPL"); static int __init init(void) { - return usb_composite_probe(&ncm_driver, gncm_bind); + return usb_composite_probe(&ncm_driver); } module_init(init); diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c index c7fb7723c014..661600abace8 100644 --- a/drivers/usb/gadget/nokia.c +++ b/drivers/usb/gadget/nokia.c @@ -16,7 +16,6 @@ */ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/device.h> #include "u_serial.h" @@ -38,11 +37,6 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "u_serial.c" #include "f_acm.c" #include "f_ecm.c" @@ -52,23 +46,23 @@ #include "u_ether.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); #define NOKIA_VENDOR_ID 0x0421 /* Nokia */ #define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */ /* string IDs are assigned dynamically */ -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 -#define STRING_DESCRIPTION_IDX 2 +#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX static char manufacturer_nokia[] = "Nokia"; static const char product_nokia[] = NOKIA_LONG_NAME; static const char description_nokia[] = "PC-Suite Configuration"; static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer_nokia, - [STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME, + [USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia, + [USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME, + [USB_GADGET_SERIAL_IDX].s = "", [STRING_DESCRIPTION_IDX].s = description_nokia, { } /* end of list */ }; @@ -90,6 +84,7 @@ static struct usb_device_descriptor device_desc = { .bDeviceClass = USB_CLASS_COMM, .idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID), .idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID), + .bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM), /* .iManufacturer = DYNAMIC */ /* .iProduct = DYNAMIC */ .bNumConfigurations = 1, @@ -151,7 +146,6 @@ static struct usb_configuration nokia_config_100ma_driver = { static int __init nokia_bind(struct usb_composite_dev *cdev) { - int gcnum; struct usb_gadget *gadget = cdev->gadget; int status; @@ -167,41 +161,17 @@ static int __init nokia_bind(struct usb_composite_dev *cdev) if (status < 0) goto err_ether; - status = usb_string_id(cdev); - if (status < 0) - goto err_usb; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto err_usb; - strings_dev[STRING_PRODUCT_IDX].id = status; - - device_desc.iProduct = status; - - /* config description */ - status = usb_string_id(cdev); - if (status < 0) - goto err_usb; - strings_dev[STRING_DESCRIPTION_IDX].id = status; - + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + status = strings_dev[STRING_DESCRIPTION_IDX].id; nokia_config_500ma_driver.iConfiguration = status; nokia_config_100ma_driver.iConfiguration = status; - /* set up other descriptors */ - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM); - else { - /* this should only work with hw that supports altsettings - * and several endpoints, anything else, panic. - */ - pr_err("nokia_bind: controller '%s' not recognized\n", - gadget->name); + if (!gadget_supports_altsettings(gadget)) goto err_usb; - } /* finally register the configuration */ status = usb_add_config(cdev, &nokia_config_500ma_driver, @@ -214,6 +184,7 @@ static int __init nokia_bind(struct usb_composite_dev *cdev) if (status < 0) goto err_usb; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME); return 0; @@ -237,17 +208,18 @@ static int __exit nokia_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver nokia_driver = { +static __refdata struct usb_composite_driver nokia_driver = { .name = "g_nokia", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = nokia_bind, .unbind = __exit_p(nokia_unbind), }; static int __init nokia_init(void) { - return usb_composite_probe(&nokia_driver, nokia_bind); + return usb_composite_probe(&nokia_driver); } module_init(nokia_init); diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index f9132ada53b5..2a4749c3eb3f 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -1308,7 +1308,7 @@ static int omap_pullup(struct usb_gadget *gadget, int is_on) } static int omap_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int omap_udc_stop(struct usb_gadget_driver *driver); static struct usb_gadget_ops omap_gadget_ops = { @@ -2040,7 +2040,7 @@ static inline int machine_without_vbus_sense(void) } static int omap_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { int status = -ENODEV; struct omap_ep *ep; @@ -2082,7 +2082,7 @@ static int omap_udc_start(struct usb_gadget_driver *driver, if (udc->dc_clk != NULL) omap_udc_enable_clock(1); - status = bind(&udc->gadget); + status = bind(&udc->gadget, driver); if (status) { DBG("bind to %s --> %d\n", driver->driver.name, status); udc->gadget.dev.driver = NULL; diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index f4fb71c9ae08..6490c0040e3a 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -1236,7 +1236,7 @@ static int pch_udc_pcd_vbus_draw(struct usb_gadget *gadget, unsigned int mA) } static int pch_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int pch_udc_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops pch_udc_ops = { .get_frame = pch_udc_pcd_get_frame, @@ -2982,7 +2982,7 @@ static int init_dma_pools(struct pch_udc_dev *dev) } static int pch_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct pch_udc_dev *dev = pch_udc; int retval; @@ -3006,7 +3006,7 @@ static int pch_udc_start(struct usb_gadget_driver *driver, dev->gadget.dev.driver = &driver->driver; /* Invoke the bind routine of the gadget driver */ - retval = bind(&dev->gadget); + retval = bind(&dev->gadget, driver); if (retval) { dev_err(&dev->pdev->dev, "%s: binding to %s returning %d\n", diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index f1f9290a2f47..e156e3f26727 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -22,7 +22,6 @@ #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> -#include <linux/utsname.h> #include <linux/device.h> #include <linux/moduleparam.h> #include <linux/fs.h> @@ -38,25 +37,13 @@ #include <asm/unaligned.h> #include <linux/usb/ch9.h> +#include <linux/usb/composite.h> #include <linux/usb/gadget.h> #include <linux/usb/g_printer.h> #include "gadget_chips.h" - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - -/*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); #define DRIVER_DESC "Printer Gadget" #define DRIVER_VERSION "2007 OCT 06" @@ -120,8 +107,7 @@ static struct printer_dev usb_printer_gadget; * parameters are in UTF-8 (superset of ASCII's 7 bit characters). */ -static char *iSerialNum; -module_param(iSerialNum, charp, S_IRUGO); +module_param_named(iSerialNum, coverwrite.serial_number, charp, S_IRUGO); MODULE_PARM_DESC(iSerialNum, "1"); static char *iPNPstring; @@ -141,18 +127,10 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR); * descriptors are built on demand. */ -#define STRING_MANUFACTURER 1 -#define STRING_PRODUCT 2 -#define STRING_SERIALNUM 3 - /* holds our biggest descriptor */ #define USB_DESC_BUFSIZE 256 #define USB_BUFSIZE 8192 -/* This device advertises one configuration. */ -#define DEV_CONFIG_VALUE 1 -#define PRINTER_INTERFACE 0 - static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, @@ -162,16 +140,12 @@ static struct usb_device_descriptor device_desc = { .bDeviceProtocol = 0, .idVendor = cpu_to_le16(PRINTER_VENDOR_NUM), .idProduct = cpu_to_le16(PRINTER_PRODUCT_NUM), - .iManufacturer = STRING_MANUFACTURER, - .iProduct = STRING_PRODUCT, - .iSerialNumber = STRING_SERIALNUM, .bNumConfigurations = 1 }; static struct usb_interface_descriptor intf_desc = { .bLength = sizeof intf_desc, .bDescriptorType = USB_DT_INTERFACE, - .bInterfaceNumber = PRINTER_INTERFACE, .bNumEndpoints = 2, .bInterfaceClass = USB_CLASS_PRINTER, .bInterfaceSubClass = 1, /* Printer Sub-Class */ @@ -252,7 +226,6 @@ static const struct usb_descriptor_header *otg_desc[] = { /* descriptors that are built on-demand */ -static char manufacturer [50]; static char product_desc [40] = DRIVER_DESC; static char serial_num [40] = "1"; static char pnp_string [1024] = @@ -260,9 +233,9 @@ static char pnp_string [1024] = /* static strings, in UTF-8 */ static struct usb_string strings [] = { - { STRING_MANUFACTURER, manufacturer, }, - { STRING_PRODUCT, product_desc, }, - { STRING_SERIALNUM, serial_num, }, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = product_desc, + [USB_GADGET_SERIAL_IDX].s = serial_num, { } /* end of list */ }; @@ -871,25 +844,13 @@ static int set_interface(struct printer_dev *dev, unsigned number) int result = 0; /* Free the current interface */ - switch (dev->interface) { - case PRINTER_INTERFACE: - printer_reset_interface(dev); - break; - } + printer_reset_interface(dev); - switch (number) { - case PRINTER_INTERFACE: - result = set_printer_interface(dev); - if (result) { - printer_reset_interface(dev); - } else { - dev->interface = PRINTER_INTERFACE; - } - break; - default: - result = -EINVAL; - /* FALL THROUGH */ - } + result = set_printer_interface(dev); + if (result) + printer_reset_interface(dev); + else + dev->interface = number; if (!result) INFO(dev, "Using interface %x\n", number); @@ -972,7 +933,7 @@ static int printer_func_setup(struct usb_function *f, switch (ctrl->bRequest) { case 0: /* Get the IEEE-1284 PNP String */ /* Only one printer interface is supported. */ - if ((wIndex>>8) != PRINTER_INTERFACE) + if ((wIndex>>8) != dev->interface) break; value = (pnp_string[0]<<8)|pnp_string[1]; @@ -983,7 +944,7 @@ static int printer_func_setup(struct usb_function *f, case 1: /* Get Port Status */ /* Only one printer interface is supported. */ - if (wIndex != PRINTER_INTERFACE) + if (wIndex != dev->interface) break; *(u8 *)req->buf = dev->printer_status; @@ -992,7 +953,7 @@ static int printer_func_setup(struct usb_function *f, case 2: /* Soft Reset */ /* Only one printer interface is supported. */ - if (wIndex != PRINTER_INTERFACE) + if (wIndex != dev->interface) break; printer_soft_reset(dev); @@ -1020,6 +981,37 @@ unknown: static int __init printer_func_bind(struct usb_configuration *c, struct usb_function *f) { + struct printer_dev *dev = container_of(f, struct printer_dev, function); + struct usb_composite_dev *cdev = c->cdev; + struct usb_ep *in_ep, *out_ep; + int id; + + id = usb_interface_id(c, f); + if (id < 0) + return id; + intf_desc.bInterfaceNumber = id; + + /* all we really need is bulk IN/OUT */ + in_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_in_desc); + if (!in_ep) { +autoconf_fail: + dev_err(&cdev->gadget->dev, "can't autoconfigure on %s\n", + cdev->gadget->name); + return -ENODEV; + } + in_ep->driver_data = in_ep; /* claim */ + + out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc); + if (!out_ep) + goto autoconf_fail; + out_ep->driver_data = out_ep; /* claim */ + + /* assumes that all endpoints are dual-speed */ + hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress; + hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress; + + dev->in_ep = in_ep; + dev->out_ep = out_ep; return 0; } @@ -1035,7 +1027,8 @@ static int printer_func_set_alt(struct usb_function *f, int ret = -ENOTSUPP; if (!alt) - ret = set_interface(dev, PRINTER_INTERFACE); + ret = set_interface(dev, intf); + return ret; } @@ -1107,13 +1100,13 @@ static int __init printer_bind_config(struct usb_configuration *c) { struct usb_gadget *gadget = c->cdev->gadget; struct printer_dev *dev; - struct usb_ep *in_ep, *out_ep; int status = -ENOMEM; - int gcnum; size_t len; u32 i; struct usb_request *req; + usb_ep_autoconfig_reset(gadget); + dev = &usb_printer_gadget; dev->function.name = shortname; @@ -1125,6 +1118,10 @@ static int __init printer_bind_config(struct usb_configuration *c) dev->function.set_alt = printer_func_set_alt; dev->function.disable = printer_func_disable; + status = usb_add_function(c, &dev->function); + if (status) + return status; + /* Setup the sysfs files for the printer gadget. */ dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno, NULL, "g_printer"); @@ -1145,23 +1142,6 @@ static int __init printer_bind_config(struct usb_configuration *c) goto fail; } - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) { - device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); - } else { - dev_warn(&gadget->dev, "controller '%s' not recognized\n", - gadget->name); - /* unrecognized, but safe unless bulk is REALLY quirky */ - device_desc.bcdDevice = - cpu_to_le16(0xFFFF); - } - snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - - if (iSerialNum) - strlcpy(serial_num, iSerialNum, sizeof serial_num); - if (iPNPstring) strlcpy(&pnp_string[2], iPNPstring, (sizeof pnp_string)-2); @@ -1169,26 +1149,6 @@ static int __init printer_bind_config(struct usb_configuration *c) pnp_string[0] = (len >> 8) & 0xFF; pnp_string[1] = len & 0xFF; - /* all we really need is bulk IN/OUT */ - usb_ep_autoconfig_reset(gadget); - in_ep = usb_ep_autoconfig(gadget, &fs_ep_in_desc); - if (!in_ep) { -autoconf_fail: - dev_err(&gadget->dev, "can't autoconfigure on %s\n", - gadget->name); - return -ENODEV; - } - in_ep->driver_data = in_ep; /* claim */ - - out_ep = usb_ep_autoconfig(gadget, &fs_ep_out_desc); - if (!out_ep) - goto autoconf_fail; - out_ep->driver_data = out_ep; /* claim */ - - /* assumes that all endpoints are dual-speed */ - hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress; - hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress; - usb_gadget_set_selfpowered(gadget); if (gadget->is_otg) { @@ -1215,9 +1175,6 @@ autoconf_fail: dev->current_rx_bytes = 0; dev->current_rx_buf = NULL; - dev->in_ep = in_ep; - dev->out_ep = out_ep; - for (i = 0; i < QLEN; i++) { req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL); if (!req) { @@ -1250,8 +1207,6 @@ autoconf_fail: dev->gadget = gadget; INFO(dev, "%s, version: " DRIVER_VERSION "\n", driver_desc); - INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, out_ep->name, - in_ep->name); return 0; fail: @@ -1266,14 +1221,28 @@ static int printer_unbind(struct usb_composite_dev *cdev) static int __init printer_bind(struct usb_composite_dev *cdev) { - return usb_add_config(cdev, &printer_cfg_driver, printer_bind_config); + int ret; + + ret = usb_string_ids_tab(cdev, strings); + if (ret < 0) + return ret; + device_desc.iManufacturer = strings[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings[USB_GADGET_PRODUCT_IDX].id; + device_desc.iSerialNumber = strings[USB_GADGET_SERIAL_IDX].id; + + ret = usb_add_config(cdev, &printer_cfg_driver, printer_bind_config); + if (ret) + return ret; + usb_composite_overwrite_options(cdev, &coverwrite); + return ret; } -static struct usb_composite_driver printer_driver = { +static __refdata struct usb_composite_driver printer_driver = { .name = shortname, .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_HIGH, + .bind = printer_bind, .unbind = printer_unbind, }; @@ -1297,7 +1266,7 @@ init(void) return status; } - status = usb_composite_probe(&printer_driver, printer_bind); + status = usb_composite_probe(&printer_driver); if (status) { class_destroy(usb_gadget_class); unregister_chrdev_region(g_printer_devno, 1); diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 907ad3ecb341..8efbf08c3561 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -33,7 +33,6 @@ #include <linux/dma-mapping.h> #include <linux/irq.h> #include <linux/clk.h> -#include <linux/err.h> #include <linux/seq_file.h> #include <linux/debugfs.h> #include <linux/io.h> @@ -1000,7 +999,7 @@ static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) } static int pxa25x_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int pxa25x_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops pxa25x_udc_ops = { @@ -1258,7 +1257,7 @@ static void udc_enable (struct pxa25x_udc *dev) * the driver might get unbound. */ static int pxa25x_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct pxa25x_udc *dev = the_controller; int retval; @@ -1286,7 +1285,7 @@ fail: dev->gadget.dev.driver = NULL; return retval; } - retval = bind(&dev->gadget); + retval = bind(&dev->gadget, driver); if (retval) { DMSG("bind to driver %s --> error %d\n", driver->driver.name, retval); diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h index 861f4df6ea22..2eca1e71fecd 100644 --- a/drivers/usb/gadget/pxa25x_udc.h +++ b/drivers/usb/gadget/pxa25x_udc.h @@ -225,7 +225,7 @@ dump_state(struct pxa25x_udc *dev) dev->stats.read.bytes, dev->stats.read.ops); for (i = 1; i < PXA_UDC_NUM_ENDPOINTS; i++) { - if (dev->ep [i].desc == NULL) + if (dev->ep[i].ep.desc == NULL) continue; DMSG ("udccs%d = %02x\n", i, *dev->ep->reg_udccs); } diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 644b4305cb99..979ddaddb0f8 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -1672,7 +1672,7 @@ static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) } static int pxa27x_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int pxa27x_udc_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops pxa_udc_ops = { @@ -1803,7 +1803,7 @@ static void udc_enable(struct pxa_udc *udc) * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise */ static int pxa27x_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct pxa_udc *udc = the_controller; int retval; @@ -1826,7 +1826,7 @@ static int pxa27x_udc_start(struct usb_gadget_driver *driver, dev_err(udc->dev, "device_add error %d\n", retval); goto add_fail; } - retval = bind(&udc->gadget); + retval = bind(&udc->gadget, driver); if (retval) { dev_err(udc->dev, "bind to driver %s --> error %d\n", driver->driver.name, retval); diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index b35babed6fcb..e4192b887de9 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -863,26 +863,8 @@ int rndis_msg_parser(u8 configNr, u8 *buf) */ pr_warning("%s: unknown RNDIS message 0x%08X len %d\n", __func__, MsgType, MsgLength); - { - unsigned i; - for (i = 0; i < MsgLength; i += 16) { - pr_debug("%03d: " - " %02x %02x %02x %02x" - " %02x %02x %02x %02x" - " %02x %02x %02x %02x" - " %02x %02x %02x %02x" - "\n", - i, - buf[i], buf [i+1], - buf[i+2], buf[i+3], - buf[i+4], buf [i+5], - buf[i+6], buf[i+7], - buf[i+8], buf [i+9], - buf[i+10], buf[i+11], - buf[i+12], buf [i+13], - buf[i+14], buf[i+15]); - } - } + print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET, + buf, MsgLength); break; } diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 0bb617e1dda2..6f696ee8b817 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2197,7 +2197,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg) /* issue soft reset */ writel(GRSTCTL_CSftRst, hsotg->regs + GRSTCTL); - timeout = 1000; + timeout = 10000; do { grstctl = readl(hsotg->regs + GRSTCTL); } while ((grstctl & GRSTCTL_CSftRst) && timeout-- > 0); @@ -2207,7 +2207,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg) return -EINVAL; } - timeout = 1000; + timeout = 10000; while (1) { u32 grstctl = readl(hsotg->regs + GRSTCTL); @@ -3516,7 +3516,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) hsotg->dev = dev; hsotg->plat = plat; - hsotg->clk = clk_get(&pdev->dev, "otg"); + hsotg->clk = devm_clk_get(&pdev->dev, "otg"); if (IS_ERR(hsotg->clk)) { dev_err(dev, "cannot get otg clock\n"); return PTR_ERR(hsotg->clk); @@ -3667,7 +3667,6 @@ err_supplies: err_clk: clk_disable_unprepare(hsotg->clk); - clk_put(hsotg->clk); return ret; } @@ -3693,7 +3692,6 @@ static int __devexit s3c_hsotg_remove(struct platform_device *pdev) regulator_bulk_free(ARRAY_SIZE(hsotg->supplies), hsotg->supplies); clk_disable_unprepare(hsotg->clk); - clk_put(hsotg->clk); device_unregister(&hsotg->gadget.dev); return 0; diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index e26a4e7ed2bf..d8e785d4ad59 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -135,7 +135,6 @@ struct s3c_hsudc_req { * @dev: The device reference used by probe function. * @lock: Lock to synchronize the usage of Endpoints (EP's are indexed). * @regs: Remapped base address of controller's register space. - * @mem_rsrc: Device memory resource used for remapping device register space. * irq: IRQ number used by the controller. * uclk: Reference to the controller clock. * ep0state: Current state of EP0. @@ -150,7 +149,6 @@ struct s3c_hsudc { struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsudc_supply_names)]; spinlock_t lock; void __iomem *regs; - struct resource *mem_rsrc; int irq; struct clk *uclk; int ep0state; @@ -835,9 +833,9 @@ static struct usb_request *s3c_hsudc_alloc_request(struct usb_ep *_ep, { struct s3c_hsudc_req *hsreq; - hsreq = kzalloc(sizeof *hsreq, gfp_flags); + hsreq = kzalloc(sizeof(*hsreq), gfp_flags); if (!hsreq) - return 0; + return NULL; INIT_LIST_HEAD(&hsreq->queue); return &hsreq->req; @@ -906,16 +904,16 @@ static int s3c_hsudc_queue(struct usb_ep *_ep, struct usb_request *_req, csr = readl((u32)hsudc->regs + offset); if (!(csr & S3C_ESR_TX_SUCCESS) && (s3c_hsudc_write_fifo(hsep, hsreq) == 1)) - hsreq = 0; + hsreq = NULL; } else { csr = readl((u32)hsudc->regs + offset); if ((csr & S3C_ESR_RX_SUCCESS) && (s3c_hsudc_read_fifo(hsep, hsreq) == 1)) - hsreq = 0; + hsreq = NULL; } } - if (hsreq != 0) + if (hsreq) list_add_tail(&hsreq->queue, &hsep->queue); spin_unlock_irqrestore(&hsudc->lock, flags); @@ -1271,7 +1269,7 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev) struct s3c24xx_hsudc_platdata *pd = pdev->dev.platform_data; int ret, i; - hsudc = kzalloc(sizeof(struct s3c_hsudc) + + hsudc = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsudc) + sizeof(struct s3c_hsudc_ep) * pd->epnum, GFP_KERNEL); if (!hsudc) { @@ -1296,25 +1294,12 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "unable to obtain driver resource data\n"); - ret = -ENODEV; - goto err_res; - } - - hsudc->mem_rsrc = request_mem_region(res->start, resource_size(res), - dev_name(&pdev->dev)); - if (!hsudc->mem_rsrc) { - dev_err(dev, "failed to reserve register area\n"); - ret = -ENODEV; - goto err_res; - } - hsudc->regs = ioremap(res->start, resource_size(res)); + hsudc->regs = devm_request_and_ioremap(&pdev->dev, res); if (!hsudc->regs) { dev_err(dev, "error mapping device register area\n"); ret = -EBUSY; - goto err_remap; + goto err_res; } spin_lock_init(&hsudc->lock); @@ -1337,21 +1322,22 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev) ret = platform_get_irq(pdev, 0); if (ret < 0) { dev_err(dev, "unable to obtain IRQ number\n"); - goto err_irq; + goto err_res; } hsudc->irq = ret; - ret = request_irq(hsudc->irq, s3c_hsudc_irq, 0, driver_name, hsudc); + ret = devm_request_irq(&pdev->dev, hsudc->irq, s3c_hsudc_irq, 0, + driver_name, hsudc); if (ret < 0) { dev_err(dev, "irq request failed\n"); - goto err_irq; + goto err_res; } - hsudc->uclk = clk_get(&pdev->dev, "usb-device"); + hsudc->uclk = devm_clk_get(&pdev->dev, "usb-device"); if (IS_ERR(hsudc->uclk)) { dev_err(dev, "failed to find usb-device clock source\n"); ret = PTR_ERR(hsudc->uclk); - goto err_clk; + goto err_res; } clk_enable(hsudc->uclk); @@ -1377,21 +1363,12 @@ err_add_udc: device_unregister(&hsudc->gadget.dev); err_add_device: clk_disable(hsudc->uclk); - clk_put(hsudc->uclk); -err_clk: - free_irq(hsudc->irq, hsudc); -err_irq: - iounmap(hsudc->regs); - -err_remap: - release_mem_region(res->start, resource_size(res)); err_res: if (!IS_ERR_OR_NULL(hsudc->transceiver)) usb_put_phy(hsudc->transceiver); regulator_bulk_free(ARRAY_SIZE(hsudc->supplies), hsudc->supplies); err_supplies: - kfree(hsudc); return ret; } diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index f2e51f50e528..c33e942d119c 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -12,6 +12,8 @@ * (at your option) any later version. */ +#define pr_fmt(fmt) "s3c2410_udc: " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/delay.h> @@ -27,6 +29,7 @@ #include <linux/clk.h> #include <linux/gpio.h> #include <linux/prefetch.h> +#include <linux/io.h> #include <linux/debugfs.h> #include <linux/seq_file.h> @@ -35,7 +38,6 @@ #include <linux/usb/gadget.h> #include <asm/byteorder.h> -#include <asm/io.h> #include <asm/irq.h> #include <asm/unaligned.h> #include <mach/irqs.h> @@ -115,7 +117,7 @@ static int dprintk(int level, const char *fmt, ...) sizeof(printk_buf)-len, fmt, args); va_end(args); - return printk(KERN_DEBUG "%s", printk_buf); + return pr_debug("%s", printk_buf); } #else static int dprintk(int level, const char *fmt, ...) @@ -125,10 +127,10 @@ static int dprintk(int level, const char *fmt, ...) #endif static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p) { - u32 addr_reg,pwr_reg,ep_int_reg,usb_int_reg; + u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg; u32 ep_int_en_reg, usb_int_en_reg, ep0_csr; - u32 ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2; - u32 ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2; + u32 ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2; + u32 ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2; addr_reg = udc_read(S3C2410_UDC_FUNC_ADDR_REG); pwr_reg = udc_read(S3C2410_UDC_PWR_REG); @@ -164,10 +166,10 @@ static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p) "EP2_I_CSR2 : 0x%04X\n" "EP2_O_CSR1 : 0x%04X\n" "EP2_O_CSR2 : 0x%04X\n", - addr_reg,pwr_reg,ep_int_reg,usb_int_reg, + addr_reg, pwr_reg, ep_int_reg, usb_int_reg, ep_int_en_reg, usb_int_en_reg, ep0_csr, - ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2, - ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2 + ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2, + ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2 ); return 0; @@ -230,7 +232,7 @@ static inline void s3c2410_udc_set_ep0_de_out(void __iomem *base) { udc_writeb(base, S3C2410_UDC_INDEX_EP0, S3C2410_UDC_INDEX_REG); - udc_writeb(base,(S3C2410_UDC_EP0_CSR_SOPKTRDY + udc_writeb(base, (S3C2410_UDC_EP0_CSR_SOPKTRDY | S3C2410_UDC_EP0_CSR_DE), S3C2410_UDC_EP0_CSR_REG); } @@ -263,7 +265,7 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep, list_del_init(&req->queue); - if (likely (req->req.status == -EINPROGRESS)) + if (likely(req->req.status == -EINPROGRESS)) req->req.status = status; else status = req->req.status; @@ -280,9 +282,9 @@ static void s3c2410_udc_nuke(struct s3c2410_udc *udc, if (&ep->queue == NULL) return; - while (!list_empty (&ep->queue)) { + while (!list_empty(&ep->queue)) { struct s3c2410_request *req; - req = list_entry (ep->queue.next, struct s3c2410_request, + req = list_entry(ep->queue.next, struct s3c2410_request, queue); s3c2410_udc_done(ep, req, status); } @@ -389,10 +391,10 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep, if (idx == 0) { /* Reset signal => no need to say 'data sent' */ - if (! (udc_read(S3C2410_UDC_USB_INT_REG) + if (!(udc_read(S3C2410_UDC_USB_INT_REG) & S3C2410_UDC_USBINT_RESET)) s3c2410_udc_set_ep0_de_in(base_addr); - ep->dev->ep0state=EP0_IDLE; + ep->dev->ep0state = EP0_IDLE; } else { udc_write(idx, S3C2410_UDC_INDEX_REG); ep_csr = udc_read(S3C2410_UDC_IN_CSR1_REG); @@ -406,7 +408,7 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep, } else { if (idx == 0) { /* Reset signal => no need to say 'data sent' */ - if (! (udc_read(S3C2410_UDC_USB_INT_REG) + if (!(udc_read(S3C2410_UDC_USB_INT_REG) & S3C2410_UDC_USBINT_RESET)) s3c2410_udc_set_ep0_ipr(base_addr); } else { @@ -442,7 +444,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep, u8 *buf; u32 ep_csr; unsigned bufferspace; - int is_last=1; + int is_last = 1; unsigned avail; int fifo_count = 0; u32 idx; @@ -510,7 +512,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep, /* Only ep0 debug messages are interesting */ if (idx == 0) dprintk(DEBUG_VERBOSE, "%s fifo count : %d [last %d]\n", - __func__, fifo_count,is_last); + __func__, fifo_count, is_last); if (is_last) { if (idx == 0) { @@ -542,7 +544,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep, static int s3c2410_udc_read_fifo_crq(struct usb_ctrlrequest *crq) { - unsigned char *outbuf = (unsigned char*)crq; + unsigned char *outbuf = (unsigned char *)crq; int bytes_read = 0; udc_write(0, S3C2410_UDC_INDEX_REG); @@ -648,7 +650,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev, switch (crq->bRequest) { case USB_REQ_SET_CONFIGURATION: - dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ... \n"); + dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ...\n"); if (crq->bRequestType == USB_RECIP_DEVICE) { dev->req_config = 1; @@ -657,7 +659,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev, break; case USB_REQ_SET_INTERFACE: - dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ... \n"); + dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ...\n"); if (crq->bRequestType == USB_RECIP_INTERFACE) { dev->req_config = 1; @@ -666,7 +668,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev, break; case USB_REQ_SET_ADDRESS: - dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ... \n"); + dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ...\n"); if (crq->bRequestType == USB_RECIP_DEVICE) { tmp = crq->wValue & 0x7F; @@ -679,13 +681,12 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev, break; case USB_REQ_GET_STATUS: - dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ... \n"); + dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ...\n"); s3c2410_udc_clear_ep0_opr(base_addr); if (dev->req_std) { - if (!s3c2410_udc_get_status(dev, crq)) { + if (!s3c2410_udc_get_status(dev, crq)) return; - } } break; @@ -750,7 +751,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev, /* deferred i/o == no response yet */ } else if (dev->req_pending) { dprintk(DEBUG_VERBOSE, "dev->req_pending... what now?\n"); - dev->req_pending=0; + dev->req_pending = 0; } dprintk(DEBUG_VERBOSE, "ep0state %s\n", ep0states[dev->ep0state]); @@ -801,16 +802,14 @@ static void s3c2410_udc_handle_ep0(struct s3c2410_udc *dev) case EP0_IN_DATA_PHASE: /* GET_DESCRIPTOR etc */ dprintk(DEBUG_NORMAL, "EP0_IN_DATA_PHASE ... what now?\n"); - if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req) { + if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req) s3c2410_udc_write_fifo(ep, req); - } break; case EP0_OUT_DATA_PHASE: /* SET_DESCRIPTOR etc */ dprintk(DEBUG_NORMAL, "EP0_OUT_DATA_PHASE ... what now?\n"); - if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req ) { - s3c2410_udc_read_fifo(ep,req); - } + if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req) + s3c2410_udc_read_fifo(ep, req); break; case EP0_END_XFER: @@ -836,7 +835,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep) u32 ep_csr1; u32 idx; - if (likely (!list_empty(&ep->queue))) + if (likely(!list_empty(&ep->queue))) req = list_entry(ep->queue.next, struct s3c2410_request, queue); else @@ -858,9 +857,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep) return; } - if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req) { - s3c2410_udc_write_fifo(ep,req); - } + if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req) + s3c2410_udc_write_fifo(ep, req); } else { udc_write(idx, S3C2410_UDC_INDEX_REG); ep_csr1 = udc_read(S3C2410_UDC_OUT_CSR1_REG); @@ -873,9 +871,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep) return; } - if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) { - s3c2410_udc_read_fifo(ep,req); - } + if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) + s3c2410_udc_read_fifo(ep, req); } } @@ -1057,7 +1054,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep, struct s3c2410_ep *ep; u32 max, tmp; unsigned long flags; - u32 csr1,csr2; + u32 csr1, csr2; u32 int_en_reg; ep = to_s3c2410_ep(_ep); @@ -1073,7 +1070,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep, max = usb_endpoint_maxp(desc) & 0x1fff; - local_irq_save (flags); + local_irq_save(flags); _ep->maxpacket = max & 0x7ff; ep->ep.desc = desc; ep->halted = 0; @@ -1117,11 +1114,11 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep, /* print some debug message */ tmp = desc->bEndpointAddress; - dprintk (DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n", - _ep->name,ep->num, tmp, + dprintk(DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n", + _ep->name, ep->num, tmp, desc->bEndpointAddress & USB_DIR_IN ? "in" : "out", max); - local_irq_restore (flags); + local_irq_restore(flags); s3c2410_udc_set_halt(_ep, 0); return 0; @@ -1149,7 +1146,7 @@ static int s3c2410_udc_ep_disable(struct usb_ep *_ep) ep->ep.desc = NULL; ep->halted = 1; - s3c2410_udc_nuke (ep->dev, ep, -ESHUTDOWN); + s3c2410_udc_nuke(ep->dev, ep, -ESHUTDOWN); /* disable irqs */ int_en_reg = udc_read(S3C2410_UDC_EP_INT_EN_REG); @@ -1170,16 +1167,16 @@ s3c2410_udc_alloc_request(struct usb_ep *_ep, gfp_t mem_flags) { struct s3c2410_request *req; - dprintk(DEBUG_VERBOSE,"%s(%p,%d)\n", __func__, _ep, mem_flags); + dprintk(DEBUG_VERBOSE, "%s(%p,%d)\n", __func__, _ep, mem_flags); if (!_ep) return NULL; - req = kzalloc (sizeof(struct s3c2410_request), mem_flags); + req = kzalloc(sizeof(struct s3c2410_request), mem_flags); if (!req) return NULL; - INIT_LIST_HEAD (&req->queue); + INIT_LIST_HEAD(&req->queue); return &req->req; } @@ -1197,7 +1194,7 @@ s3c2410_udc_free_request(struct usb_ep *_ep, struct usb_request *_req) if (!ep || !_req || (!ep->ep.desc && _ep->name != ep0name)) return; - WARN_ON (!list_empty (&req->queue)); + WARN_ON(!list_empty(&req->queue)); kfree(req); } @@ -1220,12 +1217,12 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req, } dev = ep->dev; - if (unlikely (!dev->driver + if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) { return -ESHUTDOWN; } - local_irq_save (flags); + local_irq_save(flags); if (unlikely(!_req || !_req->complete || !_req->buf || !list_empty(&req->queue))) { @@ -1233,7 +1230,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req, dprintk(DEBUG_NORMAL, "%s: 1 X X X\n", __func__); else { dprintk(DEBUG_NORMAL, "%s: 0 %01d %01d %01d\n", - __func__, !_req->complete,!_req->buf, + __func__, !_req->complete, !_req->buf, !list_empty(&req->queue)); } @@ -1299,7 +1296,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req, } /* pio or dma irq handler advances the queue. */ - if (likely (req != 0)) + if (likely(req)) list_add_tail(&req->queue, &ep->queue); local_irq_restore(flags); @@ -1329,11 +1326,11 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req) udc = to_s3c2410_udc(ep->gadget); - local_irq_save (flags); + local_irq_save(flags); - list_for_each_entry (req, &ep->queue, queue) { + list_for_each_entry(req, &ep->queue, queue) { if (&req->req == _req) { - list_del_init (&req->queue); + list_del_init(&req->queue); _req->status = -ECONNRESET; retval = 0; break; @@ -1348,7 +1345,7 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req) s3c2410_udc_done(ep, req, -ECONNRESET); } - local_irq_restore (flags); + local_irq_restore(flags); return retval; } @@ -1367,7 +1364,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value) return -EINVAL; } - local_irq_save (flags); + local_irq_save(flags); idx = ep->bEndpointAddress & 0x7F; @@ -1376,7 +1373,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value) s3c2410_udc_set_ep0_de_out(base_addr); } else { udc_write(idx, S3C2410_UDC_INDEX_REG); - ep_csr = udc_read((ep->bEndpointAddress &USB_DIR_IN) + ep_csr = udc_read((ep->bEndpointAddress & USB_DIR_IN) ? S3C2410_UDC_IN_CSR1_REG : S3C2410_UDC_OUT_CSR1_REG); @@ -1404,7 +1401,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value) } ep->halted = value ? 1 : 0; - local_irq_restore (flags); + local_irq_restore(flags); return 0; } @@ -1484,9 +1481,9 @@ static int s3c2410_udc_set_pullup(struct s3c2410_udc *udc, int is_on) } s3c2410_udc_disable(udc); } - } - else + } else { return -EOPNOTSUPP; + } return 0; } @@ -1542,7 +1539,7 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma) } static int s3c2410_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)); + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)); static int s3c2410_udc_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops s3c2410_ops = { @@ -1617,20 +1614,20 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev) u32 i; /* device/ep0 records init */ - INIT_LIST_HEAD (&dev->gadget.ep_list); - INIT_LIST_HEAD (&dev->gadget.ep0->ep_list); + INIT_LIST_HEAD(&dev->gadget.ep_list); + INIT_LIST_HEAD(&dev->gadget.ep0->ep_list); dev->ep0state = EP0_IDLE; for (i = 0; i < S3C2410_ENDPOINTS; i++) { struct s3c2410_ep *ep = &dev->ep[i]; if (i != 0) - list_add_tail (&ep->ep.ep_list, &dev->gadget.ep_list); + list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list); ep->dev = dev; ep->ep.desc = NULL; ep->halted = 0; - INIT_LIST_HEAD (&ep->queue); + INIT_LIST_HEAD(&ep->queue); } } @@ -1668,7 +1665,7 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev) } static int s3c2410_udc_start(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { struct s3c2410_udc *udc = the_controller; int retval; @@ -1683,13 +1680,13 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver, return -EBUSY; if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) { - printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n", + dev_err(&udc->gadget.dev, "Invalid driver: bind %p setup %p speed %d\n", bind, driver->setup, driver->max_speed); return -EINVAL; } #if defined(MODULE) if (!driver->unbind) { - printk(KERN_ERR "Invalid driver: no unbind method\n"); + dev_err(&udc->gadget.dev, "Invalid driver: no unbind method\n"); return -EINVAL; } #endif @@ -1699,15 +1696,17 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver, udc->gadget.dev.driver = &driver->driver; /* Bind the driver */ - if ((retval = device_add(&udc->gadget.dev)) != 0) { - printk(KERN_ERR "Error in device_add() : %d\n",retval); + retval = device_add(&udc->gadget.dev); + if (retval) { + dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval); goto register_error; } dprintk(DEBUG_NORMAL, "binding gadget driver '%s'\n", driver->driver.name); - if ((retval = bind(&udc->gadget)) != 0) { + retval = bind(&udc->gadget, driver); + if (retval) { device_del(&udc->gadget.dev); goto register_error; } @@ -1865,7 +1864,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev) memory.ep[4].fifo_size = S3C2440_EP_FIFO_SIZE; } - spin_lock_init (&udc->lock); + spin_lock_init(&udc->lock); udc_info = pdev->dev.platform_data; rsrc_start = S3C2410_PA_USBDEV; @@ -2028,7 +2027,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message) +static int +s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message) { s3c2410_udc_command(S3C2410_UDC_P_DISABLE); @@ -2073,7 +2073,7 @@ static int __init udc_init(void) s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL); if (IS_ERR(s3c2410_udc_debugfs_root)) { - printk(KERN_ERR "%s: debugfs dir creation failed %ld\n", + pr_err("%s: debugfs dir creation failed %ld\n", gadget_name, PTR_ERR(s3c2410_udc_debugfs_root)); s3c2410_udc_debugfs_root = NULL; } diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 665c07422c26..44752f531e85 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -11,7 +11,6 @@ */ #include <linux/kernel.h> -#include <linux/utsname.h> #include <linux/device.h> #include <linux/tty.h> #include <linux/tty_flip.h> @@ -37,17 +36,13 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_acm.c" #include "f_obex.c" #include "f_serial.c" #include "u_serial.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); /* Thanks to NetChip Technologies for donating this product ID. * @@ -61,15 +56,12 @@ /* string IDs are assigned dynamically */ -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 -#define STRING_DESCRIPTION_IDX 2 - -static char manufacturer[50]; +#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = GS_VERSION_NAME, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = GS_VERSION_NAME, + [USB_GADGET_SERIAL_IDX].s = "", [STRING_DESCRIPTION_IDX].s = NULL /* updated; f(use_acm) */, { } /* end of list */ }; @@ -94,7 +86,7 @@ static struct usb_device_descriptor device_desc = { /* .bMaxPacketSize0 = f(hardware) */ .idVendor = cpu_to_le16(GS_VENDOR_ID), /* .idProduct = f(use_acm) */ - /* .bcdDevice = f(hardware) */ + .bcdDevice = cpu_to_le16(GS_VERSION_NUM), /* .iManufacturer = DYNAMIC */ /* .iProduct = DYNAMIC */ .bNumConfigurations = 1, @@ -162,8 +154,6 @@ static struct usb_configuration serial_config_driver = { static int __init gs_bind(struct usb_composite_dev *cdev) { - int gcnum; - struct usb_gadget *gadget = cdev->gadget; int status; status = gserial_setup(cdev->gadget, n_ports); @@ -174,50 +164,14 @@ static int __init gs_bind(struct usb_composite_dev *cdev) * contents can be overridden by the composite_dev glue. */ - /* device description: manufacturer, product */ - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - status = usb_string_id(cdev); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) goto fail; - strings_dev[STRING_MANUFACTURER_IDX].id = status; - - device_desc.iManufacturer = status; - - status = usb_string_id(cdev); - if (status < 0) - goto fail; - strings_dev[STRING_PRODUCT_IDX].id = status; - - device_desc.iProduct = status; - - /* config description */ - status = usb_string_id(cdev); - if (status < 0) - goto fail; - strings_dev[STRING_DESCRIPTION_IDX].id = status; - + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + status = strings_dev[STRING_DESCRIPTION_IDX].id; serial_config_driver.iConfiguration = status; - /* set up other descriptors */ - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(GS_VERSION_NUM | gcnum); - else { - /* this is so simple (for now, no altsettings) that it - * SHOULD NOT have problems with bulk-capable hardware. - * so warn about unrcognized controllers -- don't panic. - * - * things like configuration and altsetting numbering - * can need hardware-specific attention though. - */ - pr_warning("gs_bind: controller '%s' not recognized\n", - gadget->name); - device_desc.bcdDevice = - cpu_to_le16(GS_VERSION_NUM | 0x0099); - } - if (gadget_is_otg(cdev->gadget)) { serial_config_driver.descriptors = otg_desc; serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; @@ -229,6 +183,7 @@ static int __init gs_bind(struct usb_composite_dev *cdev) if (status < 0) goto fail; + usb_composite_overwrite_options(cdev, &coverwrite); INFO(cdev, "%s\n", GS_VERSION_NAME); return 0; @@ -238,11 +193,12 @@ fail: return status; } -static struct usb_composite_driver gserial_driver = { +static __refdata struct usb_composite_driver gserial_driver = { .name = "g_serial", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_SUPER, + .bind = gs_bind, }; static int __init init(void) @@ -271,7 +227,7 @@ static int __init init(void) } strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label; - return usb_composite_probe(&gserial_driver, gs_bind); + return usb_composite_probe(&gserial_driver); } module_init(init); diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c index 5444866e13ef..eaa1005377fc 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.c +++ b/drivers/usb/gadget/tcm_usb_gadget.c @@ -25,13 +25,10 @@ #include <target/configfs_macros.h> #include <asm/unaligned.h> -#include "usbstring.c" -#include "epautoconf.c" -#include "config.c" -#include "composite.c" - #include "tcm_usb_gadget.h" +USB_GADGET_COMPOSITE_OPTIONS(); + static struct target_fabric_configfs *usbg_fabric_configfs; static inline struct f_uas *to_f_uas(struct usb_function *f) @@ -1977,7 +1974,6 @@ static struct usb_interface_descriptor bot_intf_desc = { .bInterfaceClass = USB_CLASS_MASS_STORAGE, .bInterfaceSubClass = USB_SC_SCSI, .bInterfaceProtocol = USB_PR_BULK, - .iInterface = USB_G_STR_INT_UAS, }; static struct usb_interface_descriptor uasp_intf_desc = { @@ -1988,7 +1984,6 @@ static struct usb_interface_descriptor uasp_intf_desc = { .bInterfaceClass = USB_CLASS_MASS_STORAGE, .bInterfaceSubClass = USB_SC_SCSI, .bInterfaceProtocol = USB_PR_UAS, - .iInterface = USB_G_STR_INT_BBB, }; static struct usb_endpoint_descriptor uasp_bi_desc = { @@ -2209,20 +2204,16 @@ static struct usb_device_descriptor usbg_device_desc = { .bDeviceClass = USB_CLASS_PER_INTERFACE, .idVendor = cpu_to_le16(UAS_VENDOR_ID), .idProduct = cpu_to_le16(UAS_PRODUCT_ID), - .iManufacturer = USB_G_STR_MANUFACTOR, - .iProduct = USB_G_STR_PRODUCT, - .iSerialNumber = USB_G_STR_SERIAL, - .bNumConfigurations = 1, }; static struct usb_string usbg_us_strings[] = { - { USB_G_STR_MANUFACTOR, "Target Manufactor"}, - { USB_G_STR_PRODUCT, "Target Product"}, - { USB_G_STR_SERIAL, "000000000001"}, - { USB_G_STR_CONFIG, "default config"}, - { USB_G_STR_INT_UAS, "USB Attached SCSI"}, - { USB_G_STR_INT_BBB, "Bulk Only Transport"}, + [USB_GADGET_MANUFACTURER_IDX].s = "Target Manufactor", + [USB_GADGET_PRODUCT_IDX].s = "Target Product", + [USB_GADGET_SERIAL_IDX].s = "000000000001", + [USB_G_STR_CONFIG].s = "default config", + [USB_G_STR_INT_UAS].s = "USB Attached SCSI", + [USB_G_STR_INT_BBB].s = "Bulk Only Transport", { }, }; @@ -2244,7 +2235,6 @@ static int guas_unbind(struct usb_composite_dev *cdev) static struct usb_configuration usbg_config_driver = { .label = "Linux Target", .bConfigurationValue = 1, - .iConfiguration = USB_G_STR_CONFIG, .bmAttributes = USB_CONFIG_ATT_SELFPOWER, }; @@ -2417,6 +2407,9 @@ static int usbg_cfg_bind(struct usb_configuration *c) fu->function.disable = usbg_disable; fu->tpg = the_only_tpg_I_currently_have; + bot_intf_desc.iInterface = usbg_us_strings[USB_G_STR_INT_BBB].id; + uasp_intf_desc.iInterface = usbg_us_strings[USB_G_STR_INT_UAS].id; + ret = usb_add_function(c, &fu->function); if (ret) goto err; @@ -2431,22 +2424,38 @@ static int usb_target_bind(struct usb_composite_dev *cdev) { int ret; + ret = usb_string_ids_tab(cdev, usbg_us_strings); + if (ret) + return ret; + + usbg_device_desc.iManufacturer = + usbg_us_strings[USB_GADGET_MANUFACTURER_IDX].id; + usbg_device_desc.iProduct = usbg_us_strings[USB_GADGET_PRODUCT_IDX].id; + usbg_device_desc.iSerialNumber = + usbg_us_strings[USB_GADGET_SERIAL_IDX].id; + usbg_config_driver.iConfiguration = + usbg_us_strings[USB_G_STR_CONFIG].id; + ret = usb_add_config(cdev, &usbg_config_driver, usbg_cfg_bind); + if (ret) + return ret; + usb_composite_overwrite_options(cdev, &coverwrite); return 0; } -static struct usb_composite_driver usbg_driver = { +static __refdata struct usb_composite_driver usbg_driver = { .name = "g_target", .dev = &usbg_device_desc, .strings = usbg_strings, .max_speed = USB_SPEED_SUPER, + .bind = usb_target_bind, .unbind = guas_unbind, }; static int usbg_attach(struct usbg_tpg *tpg) { - return usb_composite_probe(&usbg_driver, usb_target_bind); + return usb_composite_probe(&usbg_driver); } static void usbg_detach(struct usbg_tpg *tpg) diff --git a/drivers/usb/gadget/tcm_usb_gadget.h b/drivers/usb/gadget/tcm_usb_gadget.h index bb18999a9a8d..8289219925b8 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.h +++ b/drivers/usb/gadget/tcm_usb_gadget.h @@ -16,12 +16,11 @@ #define UASP_SS_EP_COMP_LOG_STREAMS 4 #define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS) -#define USB_G_STR_MANUFACTOR 1 -#define USB_G_STR_PRODUCT 2 -#define USB_G_STR_SERIAL 3 -#define USB_G_STR_CONFIG 4 -#define USB_G_STR_INT_UAS 5 -#define USB_G_STR_INT_BBB 6 +enum { + USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX, + USB_G_STR_INT_UAS, + USB_G_STR_INT_BBB, +}; #define USB_G_ALT_INT_BBB 0 #define USB_G_ALT_INT_UAS 1 diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 0e5230926154..b9c46900c2c1 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -14,6 +14,7 @@ /* #define VERBOSE_DEBUG */ #include <linux/kernel.h> +#include <linux/module.h> #include <linux/gfp.h> #include <linux/device.h> #include <linux/ctype.h> @@ -83,17 +84,10 @@ struct eth_dev { #define DEFAULT_QLEN 2 /* double buffering by default */ - -#ifdef CONFIG_USB_GADGET_DUALSPEED - static unsigned qmult = 5; module_param(qmult, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed"); -#else /* full speed (low speed doesn't do bulk) */ -#define qmult 1 -#endif - /* for dual-speed hardware, use deeper queues at high/super speed */ static inline int qlen(struct usb_gadget *gadget) { diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index e5e44f8cde9a..f3cd9690b101 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -118,7 +118,7 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request); */ static inline int usb_gadget_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) + int (*bind)(struct usb_gadget *, struct usb_gadget_driver *)) { return gadget->ops->start(driver, bind); } @@ -262,8 +262,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); if (udc_is_newstyle(udc)) { - udc->driver->disconnect(udc->gadget); usb_gadget_disconnect(udc->gadget); + udc->driver->disconnect(udc->gadget); udc->driver->unbind(udc->gadget); usb_gadget_udc_stop(udc->gadget, udc->driver); } else { @@ -311,13 +311,12 @@ EXPORT_SYMBOL_GPL(usb_del_gadget_udc); /* ------------------------------------------------------------------------- */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) +int usb_gadget_probe_driver(struct usb_gadget_driver *driver) { struct usb_udc *udc = NULL; int ret; - if (!driver || !bind || !driver->setup) + if (!driver || !driver->bind || !driver->setup) return -EINVAL; mutex_lock(&udc_lock); @@ -339,7 +338,7 @@ found: udc->dev.driver = &driver->driver; if (udc_is_newstyle(udc)) { - ret = bind(udc->gadget); + ret = driver->bind(udc->gadget, driver); if (ret) goto err1; ret = usb_gadget_udc_start(udc->gadget, driver); @@ -350,7 +349,7 @@ found: usb_gadget_connect(udc->gadget); } else { - ret = usb_gadget_start(udc->gadget, driver, bind); + ret = usb_gadget_start(udc->gadget, driver, driver->bind); if (ret) goto err1; diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c index 4d25b9009edf..1f49fce0f0b7 100644 --- a/drivers/usb/gadget/usbstring.c +++ b/drivers/usb/gadget/usbstring.c @@ -9,6 +9,7 @@ #include <linux/errno.h> #include <linux/kernel.h> +#include <linux/module.h> #include <linux/list.h> #include <linux/string.h> #include <linux/device.h> @@ -68,4 +69,4 @@ usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf) buf [1] = USB_DT_STRING; return buf [0]; } - +EXPORT_SYMBOL_GPL(usb_gadget_get_string); diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c index 120e134e805e..69cf5c2cd335 100644 --- a/drivers/usb/gadget/webcam.c +++ b/drivers/usb/gadget/webcam.c @@ -23,16 +23,12 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "uvc_queue.c" #include "uvc_video.c" #include "uvc_v4l2.c" #include "f_uvc.c" +USB_GADGET_COMPOSITE_OPTIONS(); /* -------------------------------------------------------------------------- * Device descriptor */ @@ -47,13 +43,12 @@ static char webcam_config_label[] = "Video"; /* string IDs are assigned dynamically */ -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 -#define STRING_DESCRIPTION_IDX 2 +#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX static struct usb_string webcam_strings[] = { - [STRING_MANUFACTURER_IDX].s = webcam_vendor_label, - [STRING_PRODUCT_IDX].s = webcam_product_label, + [USB_GADGET_MANUFACTURER_IDX].s = webcam_vendor_label, + [USB_GADGET_PRODUCT_IDX].s = webcam_product_label, + [USB_GADGET_SERIAL_IDX].s = "", [STRING_DESCRIPTION_IDX].s = webcam_config_label, { } }; @@ -358,26 +353,22 @@ webcam_bind(struct usb_composite_dev *cdev) /* Allocate string descriptor numbers ... note that string contents * can be overridden by the composite_dev glue. */ - if ((ret = usb_string_id(cdev)) < 0) - goto error; - webcam_strings[STRING_MANUFACTURER_IDX].id = ret; - webcam_device_descriptor.iManufacturer = ret; - - if ((ret = usb_string_id(cdev)) < 0) - goto error; - webcam_strings[STRING_PRODUCT_IDX].id = ret; - webcam_device_descriptor.iProduct = ret; - - if ((ret = usb_string_id(cdev)) < 0) + ret = usb_string_ids_tab(cdev, webcam_strings); + if (ret < 0) goto error; - webcam_strings[STRING_DESCRIPTION_IDX].id = ret; - webcam_config_driver.iConfiguration = ret; + webcam_device_descriptor.iManufacturer = + webcam_strings[USB_GADGET_MANUFACTURER_IDX].id; + webcam_device_descriptor.iProduct = + webcam_strings[USB_GADGET_PRODUCT_IDX].id; + webcam_config_driver.iConfiguration = + webcam_strings[STRING_DESCRIPTION_IDX].id; /* Register our configuration. */ if ((ret = usb_add_config(cdev, &webcam_config_driver, webcam_config_bind)) < 0) goto error; + usb_composite_overwrite_options(cdev, &coverwrite); INFO(cdev, "Webcam Video Gadget\n"); return 0; @@ -390,18 +381,19 @@ error: * Driver */ -static struct usb_composite_driver webcam_driver = { +static __refdata struct usb_composite_driver webcam_driver = { .name = "g_webcam", .dev = &webcam_device_descriptor, .strings = webcam_device_strings, .max_speed = USB_SPEED_SUPER, + .bind = webcam_bind, .unbind = webcam_unbind, }; static int __init webcam_init(void) { - return usb_composite_probe(&webcam_driver, webcam_bind); + return usb_composite_probe(&webcam_driver); } static void __exit diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 12ad516ada77..6bf4c0611365 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -42,7 +42,6 @@ #include <linux/kernel.h> #include <linux/slab.h> -#include <linux/utsname.h> #include <linux/device.h> #include "g_zero.h" @@ -58,15 +57,11 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#include "composite.c" -#include "usbstring.c" -#include "config.c" -#include "epautoconf.c" - #include "f_sourcesink.c" #include "f_loopback.c" /*-------------------------------------------------------------------------*/ +USB_GADGET_COMPOSITE_OPTIONS(); #define DRIVER_VERSION "Cinco de Mayo 2008" @@ -141,20 +136,13 @@ const struct usb_descriptor_header *otg_desc[] = { #endif /* string IDs are assigned dynamically */ - -#define STRING_MANUFACTURER_IDX 0 -#define STRING_PRODUCT_IDX 1 -#define STRING_SERIAL_IDX 2 - -static char manufacturer[50]; - /* default serial number takes at least two packets */ static char serial[] = "0123456789.0123456789.0123456789"; static struct usb_string strings_dev[] = { - [STRING_MANUFACTURER_IDX].s = manufacturer, - [STRING_PRODUCT_IDX].s = longname, - [STRING_SERIAL_IDX].s = serial, + [USB_GADGET_MANUFACTURER_IDX].s = "", + [USB_GADGET_PRODUCT_IDX].s = longname, + [USB_GADGET_SERIAL_IDX].s = serial, { } /* end of list */ }; @@ -265,30 +253,18 @@ static void zero_resume(struct usb_composite_dev *cdev) static int __init zero_bind(struct usb_composite_dev *cdev) { - int gcnum; - struct usb_gadget *gadget = cdev->gadget; - int id; + int status; /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ - id = usb_string_id(cdev); - if (id < 0) - return id; - strings_dev[STRING_MANUFACTURER_IDX].id = id; - device_desc.iManufacturer = id; - - id = usb_string_id(cdev); - if (id < 0) - return id; - strings_dev[STRING_PRODUCT_IDX].id = id; - device_desc.iProduct = id; - - id = usb_string_id(cdev); - if (id < 0) - return id; - strings_dev[STRING_SERIAL_IDX].id = id; - device_desc.iSerialNumber = id; + status = usb_string_ids_tab(cdev, strings_dev); + if (status < 0) + return status; + + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + device_desc.iSerialNumber = strings_dev[USB_GADGET_SERIAL_IDX].id; setup_timer(&autoresume_timer, zero_autoresume, (unsigned long) cdev); @@ -303,28 +279,10 @@ static int __init zero_bind(struct usb_composite_dev *cdev) loopback_add(cdev, autoresume != 0); } - gcnum = usb_gadget_controller_number(gadget); - if (gcnum >= 0) - device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); - else { - /* gadget zero is so simple (for now, no altsettings) that - * it SHOULD NOT have problems with bulk-capable hardware. - * so just warn about unrcognized controllers -- don't panic. - * - * things like configuration and altsetting numbering - * can need hardware-specific attention though. - */ - pr_warning("%s: controller '%s' not recognized\n", - longname, gadget->name); - device_desc.bcdDevice = cpu_to_le16(0x9999); - } + usb_composite_overwrite_options(cdev, &coverwrite); INFO(cdev, "%s, version: " DRIVER_VERSION "\n", longname); - snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - return 0; } @@ -334,11 +292,12 @@ static int zero_unbind(struct usb_composite_dev *cdev) return 0; } -static struct usb_composite_driver zero_driver = { +static __refdata struct usb_composite_driver zero_driver = { .name = "zero", .dev = &device_desc, .strings = dev_strings, .max_speed = USB_SPEED_SUPER, + .bind = zero_bind, .unbind = zero_unbind, .suspend = zero_suspend, .resume = zero_resume, @@ -349,7 +308,7 @@ MODULE_LICENSE("GPL"); static int __init init(void) { - return usb_composite_probe(&zero_driver, zero_bind); + return usb_composite_probe(&zero_driver); } module_init(init); |