diff options
68 files changed, 1398 insertions, 1144 deletions
diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt index 936ab5b87324..f5561ac7e17e 100644 --- a/Documentation/devicetree/bindings/serial/8250.txt +++ b/Documentation/devicetree/bindings/serial/8250.txt @@ -42,6 +42,9 @@ Optional properties: - auto-flow-control: one way to enable automatic flow control support. The driver is allowed to detect support for the capability even without this property. +- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD + line respectively. It will use specified GPIO instead of the peripheral + function pin for the UART feature. If unsure, don't specify this property. Note: * fsl,ns16550: @@ -63,3 +66,19 @@ Example: interrupts = <10>; reg-shift = <2>; }; + +Example for OMAP UART using GPIO-based modem control signals: + + uart4: serial@49042000 { + compatible = "ti,omap3-uart"; + reg = <0x49042000 0x400>; + interrupts = <80>; + ti,hwmods = "uart4"; + clock-frequency = <48000000>; + cts-gpios = <&gpio3 5 GPIO_ACTIVE_LOW>; + rts-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>; + dtr-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>; + dsr-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>; + dcd-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>; + rng-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>; + }; diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 528c3b90f23c..1e4000d83aee 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -31,6 +31,8 @@ Required properties: - "renesas,hscif-r8a7794" for R8A7794 (R-Car E2) HSCIF compatible UART. - "renesas,scif-r8a7795" for R8A7795 (R-Car H3) SCIF compatible UART. - "renesas,hscif-r8a7795" for R8A7795 (R-Car H3) HSCIF compatible UART. + - "renesas,scif-r8a7796" for R8A7796 (R-Car M3-W) SCIF compatible UART. + - "renesas,hscif-r8a7796" for R8A7796 (R-Car M3-W) HSCIF compatible UART. - "renesas,scifa-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFA compatible UART. - "renesas,scifb-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFB compatible UART. - "renesas,rcar-gen1-scif" for R-Car Gen1 SCIF compatible UART, @@ -76,6 +78,10 @@ Optional properties: - dmas: Must contain a list of two references to DMA specifiers, one for transmission, and one for reception. - dma-names: Must contain a list of two DMA names, "tx" and "rx". + - {cts,dsr,dcd,rng,rts,dtr}-gpios: Specify GPIOs for modem lines, cfr. the + generic serial DT bindings in serial.txt. + - uart-has-rtscts: Indicates dedicated lines for RTS/CTS hardware flow + control, cfr. the generic serial DT bindings in serial.txt. Example: aliases { diff --git a/MAINTAINERS b/MAINTAINERS index 6f77f92efbc2..c891b41e2b58 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10003,6 +10003,7 @@ SERIAL DRIVERS M: Greg Kroah-Hartman <gregkh@linuxfoundation.org> L: linux-serial@vger.kernel.org S: Maintained +F: Documentation/devicetree/bindings/serial/ F: drivers/tty/serial/ SYNOPSYS DESIGNWARE DMAC DRIVER diff --git a/arch/frv/include/asm/serial.h b/arch/frv/include/asm/serial.h index bce0d0d07e60..614c6d76789a 100644 --- a/arch/frv/include/asm/serial.h +++ b/arch/frv/include/asm/serial.h @@ -12,7 +12,3 @@ * the base baud is derived from the clock speed and so is variable */ #define BASE_BAUD 0 - -#define STD_COM_FLAGS UPF_BOOT_AUTOCONF - -#define SERIAL_PORT_DFNS diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c index 5f4bd71971d6..4904c5c16918 100644 --- a/arch/xtensa/platforms/xt2000/setup.c +++ b/arch/xtensa/platforms/xt2000/setup.c @@ -113,7 +113,6 @@ void platform_heartbeat(void) } //#define RS_TABLE_SIZE 2 -//#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF|UPF_SKIP_TEST) #define _SERIAL_PORT(_base,_irq) \ { \ diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index f8c5cd53307c..c5f21efd6090 100644 --- a/drivers/dma/hsu/hsu.c +++ b/drivers/dma/hsu/hsu.c @@ -126,28 +126,33 @@ static void hsu_dma_start_transfer(struct hsu_dma_chan *hsuc) hsu_dma_start_channel(hsuc); } -static u32 hsu_dma_chan_get_sr(struct hsu_dma_chan *hsuc) -{ - unsigned long flags; - u32 sr; - - spin_lock_irqsave(&hsuc->vchan.lock, flags); - sr = hsu_chan_readl(hsuc, HSU_CH_SR); - spin_unlock_irqrestore(&hsuc->vchan.lock, flags); - - return sr & ~(HSU_CH_SR_DESCE_ANY | HSU_CH_SR_CDESC_ANY); -} - -irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr) +/* + * hsu_dma_get_status() - get DMA channel status + * @chip: HSUART DMA chip + * @nr: DMA channel number + * @status: pointer for DMA Channel Status Register value + * + * Description: + * The function reads and clears the DMA Channel Status Register, checks + * if it was a timeout interrupt and returns a corresponding value. + * + * Caller should provide a valid pointer for the DMA Channel Status + * Register value that will be returned in @status. + * + * Return: + * 1 for DMA timeout status, 0 for other DMA status, or error code for + * invalid parameters or no interrupt pending. + */ +int hsu_dma_get_status(struct hsu_dma_chip *chip, unsigned short nr, + u32 *status) { struct hsu_dma_chan *hsuc; - struct hsu_dma_desc *desc; unsigned long flags; u32 sr; /* Sanity check */ if (nr >= chip->hsu->nr_channels) - return IRQ_NONE; + return -EINVAL; hsuc = &chip->hsu->chan[nr]; @@ -155,22 +160,65 @@ irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr) * No matter what situation, need read clear the IRQ status * There is a bug, see Errata 5, HSD 2900918 */ - sr = hsu_dma_chan_get_sr(hsuc); + spin_lock_irqsave(&hsuc->vchan.lock, flags); + sr = hsu_chan_readl(hsuc, HSU_CH_SR); + spin_unlock_irqrestore(&hsuc->vchan.lock, flags); + + /* Check if any interrupt is pending */ + sr &= ~(HSU_CH_SR_DESCE_ANY | HSU_CH_SR_CDESC_ANY); if (!sr) - return IRQ_NONE; + return -EIO; /* Timeout IRQ, need wait some time, see Errata 2 */ if (sr & HSU_CH_SR_DESCTO_ANY) udelay(2); + /* + * At this point, at least one of Descriptor Time Out, Channel Error + * or Descriptor Done bits must be set. Clear the Descriptor Time Out + * bits and if sr is still non-zero, it must be channel error or + * descriptor done which are higher priority than timeout and handled + * in hsu_dma_do_irq(). Else, it must be a timeout. + */ sr &= ~HSU_CH_SR_DESCTO_ANY; - if (!sr) - return IRQ_HANDLED; + + *status = sr; + + return sr ? 0 : 1; +} +EXPORT_SYMBOL_GPL(hsu_dma_get_status); + +/* + * hsu_dma_do_irq() - DMA interrupt handler + * @chip: HSUART DMA chip + * @nr: DMA channel number + * @status: Channel Status Register value + * + * Description: + * This function handles Channel Error and Descriptor Done interrupts. + * This function should be called after determining that the DMA interrupt + * is not a normal timeout interrupt, ie. hsu_dma_get_status() returned 0. + * + * Return: + * IRQ_NONE for invalid channel number, IRQ_HANDLED otherwise. + */ +irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, + u32 status) +{ + struct hsu_dma_chan *hsuc; + struct hsu_dma_desc *desc; + unsigned long flags; + + /* Sanity check */ + if (nr >= chip->hsu->nr_channels) + return IRQ_NONE; + + hsuc = &chip->hsu->chan[nr]; spin_lock_irqsave(&hsuc->vchan.lock, flags); desc = hsuc->desc; if (desc) { - if (sr & HSU_CH_SR_CHE) { + if (status & HSU_CH_SR_CHE) { desc->status = DMA_ERROR; } else if (desc->active < desc->nents) { hsu_dma_start_channel(hsuc); @@ -184,7 +232,7 @@ irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr) return IRQ_HANDLED; } -EXPORT_SYMBOL_GPL(hsu_dma_irq); +EXPORT_SYMBOL_GPL(hsu_dma_do_irq); static struct hsu_dma_desc *hsu_dma_alloc_desc(unsigned int nents) { diff --git a/drivers/dma/hsu/pci.c b/drivers/dma/hsu/pci.c index e2db76bd56d8..9916058531d9 100644 --- a/drivers/dma/hsu/pci.c +++ b/drivers/dma/hsu/pci.c @@ -27,13 +27,20 @@ static irqreturn_t hsu_pci_irq(int irq, void *dev) { struct hsu_dma_chip *chip = dev; u32 dmaisr; + u32 status; unsigned short i; irqreturn_t ret = IRQ_NONE; + int err; dmaisr = readl(chip->regs + HSU_PCI_DMAISR); for (i = 0; i < chip->hsu->nr_channels; i++) { - if (dmaisr & 0x1) - ret |= hsu_dma_irq(chip, i); + if (dmaisr & 0x1) { + err = hsu_dma_get_status(chip, i, &status); + if (err > 0) + ret |= IRQ_HANDLED; + else if (err == 0) + ret |= hsu_dma_do_irq(chip, i, status); + } dmaisr >>= 1; } diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index 3840d6b421c4..5e4fa9206861 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -93,8 +93,6 @@ static void cy_send_xchar(struct tty_struct *tty, char ch); #define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096)) #endif -#define STD_COM_FLAGS (0) - /* firmware stuff */ #define ZL_MAX_BLOCKS 16 #define DRIVER_VERSION 0x02010203 @@ -2288,7 +2286,6 @@ static int cy_get_serial_info(struct cyclades_port *info, .closing_wait = info->port.closing_wait, .baud_base = info->baud, .custom_divisor = info->custom_divisor, - .hub6 = 0, /*!!! */ }; return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; } @@ -3084,7 +3081,6 @@ static int cy_init_card(struct cyclades_card *cinfo) info->port.closing_wait = CLOSING_WAIT_DELAY; info->port.close_delay = 5 * HZ / 10; - info->port.flags = STD_COM_FLAGS; init_completion(&info->shutdown_wait); if (cy_is_Z(cinfo)) { diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c index 345cebb07ae7..2685d59d2724 100644 --- a/drivers/tty/ipwireless/tty.c +++ b/drivers/tty/ipwireless/tty.c @@ -252,20 +252,11 @@ static int ipwireless_get_serial_info(struct ipw_tty *tty, { struct serial_struct tmp; - if (!retinfo) - return (-EFAULT); - memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_UNKNOWN; tmp.line = tty->index; - tmp.port = 0; - tmp.irq = 0; - tmp.flags = 0; tmp.baud_base = 115200; - tmp.close_delay = 0; - tmp.closing_wait = 0; - tmp.custom_divisor = 0; - tmp.hub6 = 0; + if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 98d2bd16706d..69294ae154be 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -1219,7 +1219,6 @@ static int mxser_get_serial_info(struct tty_struct *tty, .close_delay = info->port.close_delay, .closing_wait = info->port.closing_wait, .custom_divisor = info->custom_divisor, - .hub6 = 0 }; if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index 215a99237e95..122e0e4029fe 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -15,6 +15,8 @@ #include <linux/serial_reg.h> #include <linux/dmaengine.h> +#include "../serial_mctrl_gpio.h" + struct uart_8250_dma { int (*tx_dma)(struct uart_8250_port *p); int (*rx_dma)(struct uart_8250_port *p); @@ -53,11 +55,9 @@ struct old_serial_port { unsigned int port; unsigned int irq; upf_t flags; - unsigned char hub6; unsigned char io_type; unsigned char __iomem *iomem_base; unsigned short iomem_reg_shift; - unsigned long irqflags; }; struct serial8250_config { @@ -131,6 +131,47 @@ void serial8250_rpm_put(struct uart_8250_port *p); int serial8250_em485_init(struct uart_8250_port *p); void serial8250_em485_destroy(struct uart_8250_port *p); +static inline void serial8250_out_MCR(struct uart_8250_port *up, int value) +{ + int mctrl_gpio = 0; + + serial_out(up, UART_MCR, value); + + if (value & UART_MCR_RTS) + mctrl_gpio |= TIOCM_RTS; + if (value & UART_MCR_DTR) + mctrl_gpio |= TIOCM_DTR; + + mctrl_gpio_set(up->gpios, mctrl_gpio); +} + +static inline int serial8250_in_MCR(struct uart_8250_port *up) +{ + int mctrl, mctrl_gpio = 0; + + mctrl = serial_in(up, UART_MCR); + + /* save current MCR values */ + if (mctrl & UART_MCR_RTS) + mctrl_gpio |= TIOCM_RTS; + if (mctrl & UART_MCR_DTR) + mctrl_gpio |= TIOCM_DTR; + + mctrl_gpio = mctrl_gpio_get_outputs(up->gpios, &mctrl_gpio); + + if (mctrl_gpio & TIOCM_RTS) + mctrl |= UART_MCR_RTS; + else + mctrl &= ~UART_MCR_RTS; + + if (mctrl_gpio & TIOCM_DTR) + mctrl |= UART_MCR_DTR; + else + mctrl &= ~UART_MCR_DTR; + + return mctrl; +} + #if defined(__alpha__) && !defined(CONFIG_PCI) /* * Digital did something really horribly wrong with the OUT1 and OUT2 @@ -237,9 +278,3 @@ static inline int serial_index(struct uart_port *port) { return port->minor - 64; } - -#if 0 -#define DEBUG_INTR(fmt...) printk(fmt) -#else -#define DEBUG_INTR(fmt...) do { } while (0) -#endif diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 0fbd7c033a25..13ad5c3d2e68 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -114,7 +114,7 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) struct list_head *l, *end = NULL; int pass_counter = 0, handled = 0; - DEBUG_INTR("serial8250_interrupt(%d)...", irq); + pr_debug("%s(%d): start\n", __func__, irq); spin_lock(&i->lock); @@ -144,7 +144,7 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) spin_unlock(&i->lock); - DEBUG_INTR("end.\n"); + pr_debug("%s(%d): end\n", __func__, irq); return IRQ_RETVAL(handled); } @@ -546,10 +546,10 @@ static void __init serial8250_isa_init_ports(void) port->iobase = old_serial_port[i].port; port->irq = irq_canonicalize(old_serial_port[i].irq); - port->irqflags = old_serial_port[i].irqflags; + port->irqflags = 0; port->uartclk = old_serial_port[i].baud_base * 16; port->flags = old_serial_port[i].flags; - port->hub6 = old_serial_port[i].hub6; + port->hub6 = 0; port->membase = old_serial_port[i].iomem_base; port->iotype = old_serial_port[i].io_type; port->regshift = old_serial_port[i].iomem_reg_shift; @@ -675,7 +675,7 @@ static struct console univ8250_console = { .device = uart_console_device, .setup = univ8250_console_setup, .match = univ8250_console_match, - .flags = CON_PRINTBUFFER | CON_ANYTIME, + .flags = CON_PRINTBUFFER | CON_ANYTIME | CON_CONSDEV, .index = -1, .data = &serial8250_reg, }; @@ -974,6 +974,8 @@ int serial8250_register_8250_port(struct uart_8250_port *up) uart = serial8250_find_match_or_unused(&up->port); if (uart && uart->port.type != PORT_8250_CIR) { + struct mctrl_gpios *gpios; + if (uart->port.dev) uart_remove_one_port(&serial8250_reg, &uart->port); @@ -1011,6 +1013,13 @@ int serial8250_register_8250_port(struct uart_8250_port *up) if (up->port.flags & UPF_FIXED_TYPE) uart->port.type = up->port.type; + gpios = mctrl_gpio_init(&uart->port, 0); + if (IS_ERR(gpios)) { + if (PTR_ERR(gpios) != -ENOSYS) + return PTR_ERR(gpios); + } else + uart->gpios = gpios; + serial8250_set_defaults(uart); /* Possibly override default I/O functions. */ diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c index 7f33d1c8d1a9..3590d012001f 100644 --- a/drivers/tty/serial/8250/8250_dma.c +++ b/drivers/tty/serial/8250/8250_dma.c @@ -145,6 +145,7 @@ void serial8250_rx_dma_flush(struct uart_8250_port *p) dmaengine_terminate_all(dma->rxchan); } } +EXPORT_SYMBOL_GPL(serial8250_rx_dma_flush); int serial8250_request_dma(struct uart_8250_port *p) { diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index 8d08ff5c4e34..85a12f032402 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -150,6 +150,7 @@ EARLYCON_DECLARE(uart, early_serial8250_setup); OF_EARLYCON_DECLARE(ns16550, "ns16550", early_serial8250_setup); OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup); OF_EARLYCON_DECLARE(uart, "nvidia,tegra20-uart", early_serial8250_setup); +OF_EARLYCON_DECLARE(uart, "snps,dw-apb-uart", early_serial8250_setup); #ifdef CONFIG_SERIAL_8250_OMAP diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c index 870981dd9e39..737b4b3957b0 100644 --- a/drivers/tty/serial/8250/8250_fintek.c +++ b/drivers/tty/serial/8250/8250_fintek.c @@ -13,6 +13,7 @@ #include <linux/pnp.h> #include <linux/kernel.h> #include <linux/serial_core.h> +#include <linux/irq.h> #include "8250.h" #define ADDR_PORT 0 @@ -30,6 +31,12 @@ #define IO_ADDR2 0x60 #define LDN 0x7 +#define IRQ_MODE 0x70 +#define IRQ_SHARE BIT(4) +#define IRQ_MODE_MASK (BIT(6) | BIT(5)) +#define IRQ_LEVEL_LOW 0 +#define IRQ_EDGE_HIGH BIT(5) + #define RS485 0xF0 #define RTS_INVERT BIT(5) #define RS485_URA BIT(4) @@ -176,10 +183,37 @@ static int find_base_port(struct fintek_8250 *pdata, u16 io_address) return -ENODEV; } +static int fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool level_mode) +{ + int status; + u8 tmp; + + status = fintek_8250_enter_key(pdata->base_port, pdata->key); + if (status) + return status; + + outb(LDN, pdata->base_port + ADDR_PORT); + outb(pdata->index, pdata->base_port + DATA_PORT); + + outb(IRQ_MODE, pdata->base_port + ADDR_PORT); + tmp = inb(pdata->base_port + DATA_PORT); + + tmp &= ~IRQ_MODE_MASK; + tmp |= IRQ_SHARE; + if (!level_mode) + tmp |= IRQ_EDGE_HIGH; + + outb(tmp, pdata->base_port + DATA_PORT); + fintek_8250_exit_key(pdata->base_port); + return 0; +} + int fintek_8250_probe(struct uart_8250_port *uart) { struct fintek_8250 *pdata; struct fintek_8250 probe_data; + struct irq_data *irq_data = irq_get_irq_data(uart->port.irq); + bool level_mode = irqd_is_level_type(irq_data); if (find_base_port(&probe_data, uart->port.iobase)) return -ENODEV; @@ -192,5 +226,5 @@ int fintek_8250_probe(struct uart_8250_port *uart) uart->port.rs485_config = fintek_8250_rs485_config; uart->port.private_data = pdata; - return 0; + return fintek_8250_set_irq_mode(pdata, level_mode); } diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/serial/8250/8250_ingenic.c index b0677f610863..4d9dc10e265c 100644 --- a/drivers/tty/serial/8250/8250_ingenic.c +++ b/drivers/tty/serial/8250/8250_ingenic.c @@ -48,7 +48,6 @@ static const struct of_device_id of_match[]; #define UART_MCR_MDCE BIT(7) #define UART_MCR_FCM BIT(6) -#if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE) static struct earlycon_device *early_device; static uint8_t __init early_in(struct uart_port *port, int offset) @@ -141,7 +140,6 @@ OF_EARLYCON_DECLARE(jz4775_uart, "ingenic,jz4775-uart", EARLYCON_DECLARE(jz4780_uart, ingenic_early_console_setup); OF_EARLYCON_DECLARE(jz4780_uart, "ingenic,jz4780-uart", ingenic_early_console_setup); -#endif /* CONFIG_SERIAL_EARLYCON */ static void ingenic_uart_serial_out(struct uart_port *p, int offset, int value) { diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c index 86379a79a6a3..339de9cd0866 100644 --- a/drivers/tty/serial/8250/8250_mid.c +++ b/drivers/tty/serial/8250/8250_mid.c @@ -96,13 +96,27 @@ static int tng_setup(struct mid8250 *mid, struct uart_port *p) static int dnv_handle_irq(struct uart_port *p) { struct mid8250 *mid = p->private_data; + struct uart_8250_port *up = up_to_u8250p(p); unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR); + u32 status; int ret = IRQ_NONE; - - if (fisr & BIT(2)) - ret |= hsu_dma_irq(&mid->dma_chip, 1); - if (fisr & BIT(1)) - ret |= hsu_dma_irq(&mid->dma_chip, 0); + int err; + + if (fisr & BIT(2)) { + err = hsu_dma_get_status(&mid->dma_chip, 1, &status); + if (err > 0) { + serial8250_rx_dma_flush(up); + ret |= IRQ_HANDLED; + } else if (err == 0) + ret |= hsu_dma_do_irq(&mid->dma_chip, 1, status); + } + if (fisr & BIT(1)) { + err = hsu_dma_get_status(&mid->dma_chip, 0, &status); + if (err > 0) + ret |= IRQ_HANDLED; + else if (err == 0) + ret |= hsu_dma_do_irq(&mid->dma_chip, 0, status); + } if (fisr & BIT(0)) ret |= serial8250_handle_irq(p, serial_port_in(p, UART_IIR)); return ret; diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c index 3489fbcb7313..3611ec9bb4fa 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -301,7 +301,7 @@ static struct platform_driver mtk8250_platform_driver = { }; module_platform_driver(mtk8250_platform_driver); -#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE) +#ifdef CONFIG_SERIAL_8250_CONSOLE static int __init early_mtk8250_setup(struct earlycon_device *device, const char *options) { diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 2c44c792d586..e14982f36a04 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -134,18 +134,21 @@ static void omap8250_set_mctrl(struct uart_port *port, unsigned int mctrl) serial8250_do_set_mctrl(port, mctrl); - /* - * Turn off autoRTS if RTS is lowered and restore autoRTS setting - * if RTS is raised - */ - lcr = serial_in(up, UART_LCR); - serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); - if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS)) - priv->efr |= UART_EFR_RTS; - else - priv->efr &= ~UART_EFR_RTS; - serial_out(up, UART_EFR, priv->efr); - serial_out(up, UART_LCR, lcr); + if (IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(up->gpios, + UART_GPIO_RTS))) { + /* + * Turn off autoRTS if RTS is lowered and restore autoRTS + * setting if RTS is raised + */ + lcr = serial_in(up, UART_LCR); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS)) + priv->efr |= UART_EFR_RTS; + else + priv->efr &= ~UART_EFR_RTS; + serial_out(up, UART_EFR, priv->efr); + serial_out(up, UART_LCR, lcr); + } } /* @@ -280,7 +283,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up) serial_out(up, UART_EFR, UART_EFR_ECB); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); - serial_out(up, UART_MCR, UART_MCR_TCRTLR); + serial8250_out_MCR(up, UART_MCR_TCRTLR); serial_out(up, UART_FCR, up->fcr); omap8250_update_scr(up, priv); @@ -296,7 +299,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up) serial_out(up, UART_LCR, 0); /* drop TCR + TLR access, we setup XON/XOFF later */ - serial_out(up, UART_MCR, up->mcr); + serial8250_out_MCR(up, up->mcr); serial_out(up, UART_IER, up->ier); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); @@ -446,7 +449,9 @@ static void omap_8250_set_termios(struct uart_port *port, priv->efr = 0; up->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS | UPSTAT_AUTOXOFF); - if (termios->c_cflag & CRTSCTS && up->port.flags & UPF_HARD_FLOW) { + if (termios->c_cflag & CRTSCTS && up->port.flags & UPF_HARD_FLOW + && IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(up->gpios, + UART_GPIO_RTS))) { /* Enable AUTOCTS (autoRTS is enabled when RTS is raised) */ up->port.status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS; priv->efr |= UART_EFR_CTS; diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 8dd250fbd367..20ebaea5c414 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1136,11 +1136,11 @@ static int pci_quatech_rqopr(struct uart_8250_port *port) static void pci_quatech_wqopr(struct uart_8250_port *port, u8 qopr) { unsigned long base = port->port.iobase; - u8 LCR, val; + u8 LCR; LCR = inb(base + UART_LCR); outb(0xBF, base + UART_LCR); - val = inb(base + UART_SCR); + inb(base + UART_SCR); outb(qopr, base + UART_SCR); outb(LCR, base + UART_LCR); } @@ -1865,6 +1865,16 @@ pci_wch_ch353_setup(struct serial_private *priv, } static int +pci_wch_ch355_setup(struct serial_private *priv, + const struct pciserial_board *board, + struct uart_8250_port *port, int idx) +{ + port->port.flags |= UPF_FIXED_TYPE; + port->port.type = PORT_16550A; + return pci_default_setup(priv, board, port, idx); +} + +static int pci_wch_ch38x_setup(struct serial_private *priv, const struct pciserial_board *board, struct uart_8250_port *port, int idx) @@ -1915,6 +1925,7 @@ pci_wch_ch38x_setup(struct serial_private *priv, #define PCI_DEVICE_ID_WCH_CH353_2S1PF 0x5046 #define PCI_DEVICE_ID_WCH_CH353_1S1P 0x5053 #define PCI_DEVICE_ID_WCH_CH353_2S1P 0x7053 +#define PCI_DEVICE_ID_WCH_CH355_4S 0x7173 #define PCI_VENDOR_ID_AGESTAR 0x5372 #define PCI_DEVICE_ID_AGESTAR_9375 0x6872 #define PCI_VENDOR_ID_ASIX 0x9710 @@ -2618,6 +2629,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch353_setup, }, + /* WCH CH355 4S card (16550 clone) */ + { + .vendor = PCI_VENDOR_ID_WCH, + .device = PCI_DEVICE_ID_WCH_CH355_4S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch355_setup, + }, /* WCH CH382 2S card (16850 clone) */ { .vendor = PCIE_VENDOR_ID_WCH, @@ -3812,6 +3831,7 @@ static const struct pci_device_id blacklist[] = { /* multi-io cards handled by parport_serial */ { PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */ { PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */ + { PCI_DEVICE(0x4348, 0x7173), }, /* WCH CH355 4S */ { PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */ { PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */ @@ -5567,6 +5587,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_bt_2_115200 }, + { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH355_4S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_bt_4_115200 }, + { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH382_2S, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_wch382_2 }, diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index d4036038a4dd..7481b95c6d84 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -527,13 +527,13 @@ static void serial8250_clear_fifos(struct uart_8250_port *p) static inline void serial8250_em485_rts_after_send(struct uart_8250_port *p) { - unsigned char mcr = serial_in(p, UART_MCR); + unsigned char mcr = serial8250_in_MCR(p); if (p->port.rs485.flags & SER_RS485_RTS_AFTER_SEND) mcr |= UART_MCR_RTS; else mcr &= ~UART_MCR_RTS; - serial_out(p, UART_MCR, mcr); + serial8250_out_MCR(p, mcr); } static void serial8250_em485_handle_start_tx(unsigned long arg); @@ -785,10 +785,10 @@ static int size_fifo(struct uart_8250_port *up) old_lcr = serial_in(up, UART_LCR); serial_out(up, UART_LCR, 0); old_fcr = serial_in(up, UART_FCR); - old_mcr = serial_in(up, UART_MCR); + old_mcr = serial8250_in_MCR(up); serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); - serial_out(up, UART_MCR, UART_MCR_LOOP); + serial8250_out_MCR(up, UART_MCR_LOOP); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); old_dl = serial_dl_read(up); serial_dl_write(up, 0x0001); @@ -800,7 +800,7 @@ static int size_fifo(struct uart_8250_port *up) (count < 256); count++) serial_in(up, UART_RX); serial_out(up, UART_FCR, old_fcr); - serial_out(up, UART_MCR, old_mcr); + serial8250_out_MCR(up, old_mcr); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); serial_dl_write(up, old_dl); serial_out(up, UART_LCR, old_lcr); @@ -1040,17 +1040,17 @@ static void autoconfig_16550a(struct uart_8250_port *up) * it's changed. If so, set baud_base in EXCR2 to 921600. -- dwmw2 */ serial_out(up, UART_LCR, 0); - status1 = serial_in(up, UART_MCR); + status1 = serial8250_in_MCR(up); serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ if (!((status2 ^ status1) & UART_MCR_LOOP)) { serial_out(up, UART_LCR, 0); - serial_out(up, UART_MCR, status1 ^ UART_MCR_LOOP); + serial8250_out_MCR(up, status1 ^ UART_MCR_LOOP); serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ serial_out(up, UART_LCR, 0); - serial_out(up, UART_MCR, status1); + serial8250_out_MCR(up, status1); if ((status2 ^ status1) & UART_MCR_LOOP) { unsigned short quot; @@ -1224,7 +1224,7 @@ static void autoconfig(struct uart_8250_port *up) } } - save_mcr = serial_in(up, UART_MCR); + save_mcr = serial8250_in_MCR(up); save_lcr = serial_in(up, UART_LCR); /* @@ -1237,9 +1237,9 @@ static void autoconfig(struct uart_8250_port *up) * that conflicts with COM 1-4 --- we hope! */ if (!(port->flags & UPF_SKIP_TEST)) { - serial_out(up, UART_MCR, UART_MCR_LOOP | 0x0A); + serial8250_out_MCR(up, UART_MCR_LOOP | 0x0A); status1 = serial_in(up, UART_MSR) & 0xF0; - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); if (status1 != 0x90) { spin_unlock_irqrestore(&port->lock, flags); DEBUG_AUTOCONF("LOOP test failed (%02x) ", @@ -1305,7 +1305,7 @@ static void autoconfig(struct uart_8250_port *up) if (port->type == PORT_RSA) serial_out(up, UART_RSA_FRR, 0); #endif - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); serial8250_clear_fifos(up); serial_in(up, UART_RX); if (up->capabilities & UART_CAP_UUE) @@ -1353,19 +1353,18 @@ static void autoconfig_irq(struct uart_8250_port *up) /* forget possible initially masked and pending IRQ */ probe_irq_off(probe_irq_on()); - save_mcr = serial_in(up, UART_MCR); + save_mcr = serial8250_in_MCR(up); save_ier = serial_in(up, UART_IER); - serial_out(up, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); + serial8250_out_MCR(up, UART_MCR_OUT1 | UART_MCR_OUT2); irqs = probe_irq_on(); - serial_out(up, UART_MCR, 0); + serial8250_out_MCR(up, 0); udelay(10); if (port->flags & UPF_FOURPORT) { - serial_out(up, UART_MCR, - UART_MCR_DTR | UART_MCR_RTS); + serial8250_out_MCR(up, UART_MCR_DTR | UART_MCR_RTS); } else { - serial_out(up, UART_MCR, - UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); + serial8250_out_MCR(up, + UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); } serial_out(up, UART_IER, 0x0f); /* enable all intrs */ serial_in(up, UART_LSR); @@ -1376,7 +1375,7 @@ static void autoconfig_irq(struct uart_8250_port *up) udelay(20); irq = probe_irq_off(irqs); - serial_out(up, UART_MCR, save_mcr); + serial8250_out_MCR(up, save_mcr); serial_out(up, UART_IER, save_ier); if (port->flags & UPF_FOURPORT) @@ -1549,14 +1548,14 @@ static inline void start_tx_rs485(struct uart_port *port) del_timer(&em485->stop_tx_timer); em485->active_timer = NULL; - mcr = serial_in(up, UART_MCR); + mcr = serial8250_in_MCR(up); if (!!(up->port.rs485.flags & SER_RS485_RTS_ON_SEND) != !!(mcr & UART_MCR_RTS)) { if (up->port.rs485.flags & SER_RS485_RTS_ON_SEND) mcr |= UART_MCR_RTS; else mcr &= ~UART_MCR_RTS; - serial_out(up, UART_MCR, mcr); + serial8250_out_MCR(up, mcr); if (up->port.rs485.delay_rts_before_send > 0) { em485->active_timer = &em485->start_tx_timer; @@ -1619,6 +1618,8 @@ static void serial8250_disable_ms(struct uart_port *port) if (up->bugs & UART_BUG_NOMSR) return; + mctrl_gpio_disable_ms(up->gpios); + up->ier &= ~UART_IER_MSI; serial_port_out(port, UART_IER, up->ier); } @@ -1631,6 +1632,8 @@ static void serial8250_enable_ms(struct uart_port *port) if (up->bugs & UART_BUG_NOMSR) return; + mctrl_gpio_enable_ms(up->gpios); + up->ier |= UART_IER_MSI; serial8250_rpm_get(up); @@ -1686,7 +1689,7 @@ static void serial8250_read_char(struct uart_8250_port *up, unsigned char lsr) lsr &= port->read_status_mask; if (lsr & UART_LSR_BI) { - DEBUG_INTR("handling break...."); + pr_debug("%s: handling break\n", __func__); flag = TTY_BREAK; } else if (lsr & UART_LSR_PE) flag = TTY_PARITY; @@ -1757,7 +1760,7 @@ void serial8250_tx_chars(struct uart_8250_port *up) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - DEBUG_INTR("THRE..."); + pr_debug("%s: THRE\n", __func__); /* * With RPM enabled, we have to wait until the FIFO is empty before the @@ -1823,7 +1826,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir) status = serial_port_in(port, UART_LSR); - DEBUG_INTR("status = %x...", status); + pr_debug("%s: status = %x\n", __func__, status); if (status & (UART_LSR_DR | UART_LSR_BI)) { if (!up->dma || handle_rx_dma(up, iir)) @@ -1861,7 +1864,6 @@ static int serial8250_default_handle_irq(struct uart_port *port) */ static int exar_handle_irq(struct uart_port *port) { - unsigned char int0, int1, int2, int3; unsigned int iir = serial_port_in(port, UART_IIR); int ret; @@ -1869,10 +1871,10 @@ static int exar_handle_irq(struct uart_port *port) if ((port->type == PORT_XR17V35X) || (port->type == PORT_XR17D15X)) { - int0 = serial_port_in(port, 0x80); - int1 = serial_port_in(port, 0x81); - int2 = serial_port_in(port, 0x82); - int3 = serial_port_in(port, 0x83); + serial_port_in(port, 0x80); + serial_port_in(port, 0x81); + serial_port_in(port, 0x82); + serial_port_in(port, 0x83); } return ret; @@ -1915,7 +1917,8 @@ unsigned int serial8250_do_get_mctrl(struct uart_port *port) ret |= TIOCM_DSR; if (status & UART_MSR_CTS) ret |= TIOCM_CTS; - return ret; + + return mctrl_gpio_get(up->gpios, &ret); } EXPORT_SYMBOL_GPL(serial8250_do_get_mctrl); @@ -1944,7 +1947,7 @@ void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl) mcr = (mcr & up->mcr_mask) | up->mcr_force | up->mcr; - serial_port_out(port, UART_MCR, mcr); + serial8250_out_MCR(up, mcr); } EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl); @@ -1994,8 +1997,6 @@ static void wait_for_xmitr(struct uart_8250_port *up, int bits) /* Wait up to 1s for flow control if necessary */ if (up->port.flags & UPF_CONS_FLOW) { - unsigned int tmout; - for (tmout = 1000000; tmout; tmout--) { unsigned int msr = serial_in(up, UART_MSR); up->msr_saved_flags |= msr & MSR_SAVE_FLAGS; @@ -3093,7 +3094,7 @@ static void serial8250_console_restore(struct uart_8250_port *up) serial8250_set_divisor(port, baud, quot, frac); serial_port_out(port, UART_LCR, up->lcr); - serial_port_out(port, UART_MCR, UART_MCR_DTR | UART_MCR_RTS); + serial8250_out_MCR(up, UART_MCR_DTR | UART_MCR_RTS); } /* diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c index efd1f9c047b1..b8d9c8c9d02a 100644 --- a/drivers/tty/serial/8250/8250_uniphier.c +++ b/drivers/tty/serial/8250/8250_uniphier.c @@ -35,7 +35,7 @@ struct uniphier8250_priv { spinlock_t atomic_write_lock; }; -#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE) +#ifdef CONFIG_SERIAL_8250_CONSOLE static int __init uniphier_early_console_setup(struct earlycon_device *device, const char *options) { diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index e46761d20f7b..c9ec839a5ddf 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -6,6 +6,7 @@ config SERIAL_8250 tristate "8250/16550 and compatible serial support" select SERIAL_CORE + select SERIAL_MCTRL_GPIO if GPIOLIB ---help--- This selects whether you want to include the driver for the standard serial ports. The standard answer is Y. People who might say N @@ -387,7 +388,8 @@ config SERIAL_8250_MT6577 config SERIAL_8250_UNIPHIER tristate "Support for UniPhier on-chip UART" - depends on SERIAL_8250 && ARCH_UNIPHIER + depends on SERIAL_8250 + depends on ARCH_UNIPHIER || COMPILE_TEST help If you have a UniPhier based board and want to use the on-chip serial ports, say Y to this option. If unsure, say N. @@ -395,7 +397,7 @@ config SERIAL_8250_UNIPHIER config SERIAL_8250_INGENIC tristate "Support for Ingenic SoC serial ports" depends on SERIAL_8250 - depends on (OF_FLATTREE && SERIAL_8250_CONSOLE) || !SERIAL_EARLYCON + depends on OF_FLATTREE depends on MIPS || COMPILE_TEST help If you have a system using an Ingenic SoC and wish to make use of diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 7e3a58c8bb67..518db24a5b36 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -736,6 +736,7 @@ config SERIAL_SH_SCI tristate "SuperH SCI(F) serial port support" depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST select SERIAL_CORE + select SERIAL_MCTRL_GPIO if GPIOLIB config SERIAL_SH_SCI_NR_UARTS int "Maximum number of SCI(F) serial ports" @@ -1477,7 +1478,7 @@ config SERIAL_MPS2_UART_CONSOLE config SERIAL_MPS2_UART bool "MPS2 UART port" - depends on ARM || COMPILE_TEST + depends on ARCH_MPS2 || COMPILE_TEST select SERIAL_CORE help This driver support the UART ports on ARM MPS2. diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 1b7331e40d79..8a9e213387a7 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2553,11 +2553,17 @@ static int sbsa_uart_probe(struct platform_device *pdev) if (!uap) return -ENOMEM; + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(&pdev->dev, "cannot obtain irq\n"); + return ret; + } + uap->port.irq = ret; + uap->reg_offset = vendor_sbsa.reg_offset; uap->vendor = &vendor_sbsa; uap->fifosize = 32; uap->port.iotype = vendor_sbsa.access_32b ? UPIO_MEM32 : UPIO_MEM; - uap->port.irq = platform_get_irq(pdev, 0); uap->port.ops = &sbsa_uart_pops; uap->fixed_baud = baudrate; diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 954941dd8124..2eaa18ddef61 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -108,6 +108,12 @@ struct atmel_uart_char { u16 ch; }; +/* + * Be careful, the real size of the ring buffer is + * sizeof(atmel_uart_char) * ATMEL_SERIAL_RINGSIZE. It means that ring buffer + * can contain up to 1024 characters in PIO mode and up to 4096 characters in + * DMA mode. + */ #define ATMEL_SERIAL_RINGSIZE 1024 /* @@ -145,10 +151,10 @@ struct atmel_uart_port { dma_cookie_t cookie_rx; struct scatterlist sg_tx; struct scatterlist sg_rx; - struct tasklet_struct tasklet; - unsigned int irq_status; + struct tasklet_struct tasklet_rx; + struct tasklet_struct tasklet_tx; + atomic_t tasklet_shutdown; unsigned int irq_status_prev; - unsigned int status_change; unsigned int tx_len; struct circ_buf rx_ring; @@ -281,6 +287,13 @@ static bool atmel_use_fifo(struct uart_port *port) return atmel_port->fifo_size; } +static void atmel_tasklet_schedule(struct atmel_uart_port *atmel_port, + struct tasklet_struct *t) +{ + if (!atomic_read(&atmel_port->tasklet_shutdown)) + tasklet_schedule(t); +} + static unsigned int atmel_get_lines_status(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); @@ -482,19 +495,21 @@ static void atmel_start_tx(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (atmel_use_pdc_tx(port)) { - if (atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN) - /* The transmitter is already running. Yes, we - really need this.*/ - return; + if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR) + & ATMEL_PDC_TXTEN)) + /* The transmitter is already running. Yes, we + really need this.*/ + return; + if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) atmel_stop_rx(port); + if (atmel_use_pdc_tx(port)) /* re-enable PDC transmit */ atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); - } + /* Enable interrupts */ atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } @@ -710,7 +725,7 @@ static void atmel_rx_chars(struct uart_port *port) status = atmel_uart_readl(port, ATMEL_US_CSR); } - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); } /* @@ -781,7 +796,7 @@ static void atmel_complete_tx_dma(void *arg) * remaining data from the beginning of xmit->buf to xmit->head. */ if (!uart_circ_empty(xmit)) - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); spin_unlock_irqrestore(&port->lock, flags); } @@ -966,7 +981,7 @@ static void atmel_complete_rx_dma(void *arg) struct uart_port *port = arg; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); } static void atmel_release_rx_dma(struct uart_port *port) @@ -1006,7 +1021,7 @@ static void atmel_rx_from_dma(struct uart_port *port) if (dmastat == DMA_ERROR) { dev_dbg(port->dev, "Get residue error, restart tasklet\n"); atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT); - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_rx); return; } @@ -1160,8 +1175,11 @@ static void atmel_uart_timer_callback(unsigned long data) struct uart_port *port = (void *)data; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - tasklet_schedule(&atmel_port->tasklet); - mod_timer(&atmel_port->uart_timer, jiffies + uart_poll_timeout(port)); + if (!atomic_read(&atmel_port->tasklet_shutdown)) { + tasklet_schedule(&atmel_port->tasklet_rx); + mod_timer(&atmel_port->uart_timer, + jiffies + uart_poll_timeout(port)); + } } /* @@ -1183,7 +1201,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) if (pending & (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)) { atmel_uart_writel(port, ATMEL_US_IDR, (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)); - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, + &atmel_port->tasklet_rx); } if (pending & (ATMEL_US_RXBRK | ATMEL_US_OVRE | @@ -1195,7 +1214,8 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) if (pending & ATMEL_US_TIMEOUT) { atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_TIMEOUT); - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, + &atmel_port->tasklet_rx); } } @@ -1225,7 +1245,7 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) /* Either PDC or interrupt transmission */ atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); - tasklet_schedule(&atmel_port->tasklet); + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); } } @@ -1237,14 +1257,27 @@ atmel_handle_status(struct uart_port *port, unsigned int pending, unsigned int status) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + unsigned int status_change; if (pending & (ATMEL_US_RIIC | ATMEL_US_DSRIC | ATMEL_US_DCDIC | ATMEL_US_CTSIC)) { - atmel_port->irq_status = status; - atmel_port->status_change = atmel_port->irq_status ^ - atmel_port->irq_status_prev; + status_change = status ^ atmel_port->irq_status_prev; atmel_port->irq_status_prev = status; - tasklet_schedule(&atmel_port->tasklet); + + if (status_change & (ATMEL_US_RI | ATMEL_US_DSR + | ATMEL_US_DCD | ATMEL_US_CTS)) { + /* TODO: All reads to CSR will clear these interrupts! */ + if (status_change & ATMEL_US_RI) + port->icount.rng++; + if (status_change & ATMEL_US_DSR) + port->icount.dsr++; + if (status_change & ATMEL_US_DCD) + uart_handle_dcd_change(port, !(status & ATMEL_US_DCD)); + if (status_change & ATMEL_US_CTS) + uart_handle_cts_change(port, !(status & ATMEL_US_CTS)); + + wake_up_interruptible(&port->state->port.delta_msr_wait); + } } } @@ -1571,37 +1604,25 @@ static int atmel_prepare_rx_pdc(struct uart_port *port) /* * tasklet handling tty stuff outside the interrupt handler. */ -static void atmel_tasklet_func(unsigned long data) +static void atmel_tasklet_rx_func(unsigned long data) { struct uart_port *port = (struct uart_port *)data; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - unsigned int status = atmel_port->irq_status; - unsigned int status_change = atmel_port->status_change; /* The interrupt handler does not take the lock */ spin_lock(&port->lock); - - atmel_port->schedule_tx(port); - - if (status_change & (ATMEL_US_RI | ATMEL_US_DSR - | ATMEL_US_DCD | ATMEL_US_CTS)) { - /* TODO: All reads to CSR will clear these interrupts! */ - if (status_change & ATMEL_US_RI) - port->icount.rng++; - if (status_change & ATMEL_US_DSR) - port->icount.dsr++; - if (status_change & ATMEL_US_DCD) - uart_handle_dcd_change(port, !(status & ATMEL_US_DCD)); - if (status_change & ATMEL_US_CTS) - uart_handle_cts_change(port, !(status & ATMEL_US_CTS)); - - wake_up_interruptible(&port->state->port.delta_msr_wait); - - atmel_port->status_change = 0; - } - atmel_port->schedule_rx(port); + spin_unlock(&port->lock); +} + +static void atmel_tasklet_tx_func(unsigned long data) +{ + struct uart_port *port = (struct uart_port *)data; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + /* The interrupt handler does not take the lock */ + spin_lock(&port->lock); + atmel_port->schedule_tx(port); spin_unlock(&port->lock); } @@ -1785,7 +1806,11 @@ static int atmel_startup(struct uart_port *port) return retval; } - tasklet_enable(&atmel_port->tasklet); + atomic_set(&atmel_port->tasklet_shutdown, 0); + tasklet_init(&atmel_port->tasklet_rx, atmel_tasklet_rx_func, + (unsigned long)port); + tasklet_init(&atmel_port->tasklet_tx, atmel_tasklet_tx_func, + (unsigned long)port); /* * Initialize DMA (if necessary) @@ -1833,7 +1858,6 @@ static int atmel_startup(struct uart_port *port) /* Save current CSR for comparison in atmel_tasklet_func() */ atmel_port->irq_status_prev = atmel_get_lines_status(port); - atmel_port->irq_status = atmel_port->irq_status_prev; /* * Finally, enable the serial port @@ -1905,29 +1929,36 @@ static void atmel_shutdown(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + /* Disable interrupts at device level */ + atmel_uart_writel(port, ATMEL_US_IDR, -1); + + /* Prevent spurious interrupts from scheduling the tasklet */ + atomic_inc(&atmel_port->tasklet_shutdown); + /* * Prevent any tasklets being scheduled during * cleanup */ del_timer_sync(&atmel_port->uart_timer); + /* Make sure that no interrupt is on the fly */ + synchronize_irq(port->irq); + /* * Clear out any scheduled tasklets before * we destroy the buffers */ - tasklet_disable(&atmel_port->tasklet); - tasklet_kill(&atmel_port->tasklet); + tasklet_kill(&atmel_port->tasklet_rx); + tasklet_kill(&atmel_port->tasklet_tx); /* * Ensure everything is stopped and - * disable all interrupts, port and break condition. + * disable port and break condition. */ atmel_stop_rx(port); atmel_stop_tx(port); atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA); - atmel_uart_writel(port, ATMEL_US_IDR, -1); - /* * Shut-down the DMA. @@ -2311,10 +2342,6 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port, port->irq = pdev->resource[1].start; port->rs485_config = atmel_config_rs485; - tasklet_init(&atmel_port->tasklet, atmel_tasklet_func, - (unsigned long)port); - tasklet_disable(&atmel_port->tasklet); - memset(&atmel_port->rx_ring, 0, sizeof(atmel_port->rx_ring)); if (pdata && pdata->regs) { @@ -2699,6 +2726,7 @@ static int atmel_serial_probe(struct platform_device *pdev) atmel_port->uart.line = ret; atmel_serial_probe_fifos(atmel_port, pdev); + atomic_set(&atmel_port->tasklet_shutdown, 0); spin_lock_init(&atmel_port->lock_suspended); ret = atmel_init_port(atmel_port, pdev); @@ -2795,7 +2823,8 @@ static int atmel_serial_remove(struct platform_device *pdev) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); int ret = 0; - tasklet_kill(&atmel_port->tasklet); + tasklet_kill(&atmel_port->tasklet_rx); + tasklet_kill(&atmel_port->tasklet_tx); device_init_wakeup(&pdev->dev, 0); diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index c28e5c24da16..5108fab953aa 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -813,8 +813,12 @@ static int bcm_uart_probe(struct platform_device *pdev) struct clk *clk; int ret; - if (pdev->dev.of_node) - pdev->id = of_alias_get_id(pdev->dev.of_node, "uart"); + if (pdev->dev.of_node) { + pdev->id = of_alias_get_id(pdev->dev.of_node, "serial"); + + if (pdev->id < 0) + pdev->id = of_alias_get_id(pdev->dev.of_node, "uart"); + } if (pdev->id < 0 || pdev->id >= BCM63XX_NR_UARTS) return -EINVAL; diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 3d790033744e..7f95f782a485 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1830,7 +1830,13 @@ static int lpuart_probe(struct platform_device *pdev) sport->port.dev = &pdev->dev; sport->port.type = PORT_LPUART; sport->port.iotype = UPIO_MEM; - sport->port.irq = platform_get_irq(pdev, 0); + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(&pdev->dev, "cannot obtain irq\n"); + return ret; + } + sport->port.irq = ret; + if (sport->lpuart32) sport->port.ops = &lpuart32_pops; else diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c index 68765f7c2645..218b7118e85d 100644 --- a/drivers/tty/serial/m32r_sio.c +++ b/drivers/tty/serial/m32r_sio.c @@ -30,7 +30,6 @@ #define SUPPORT_SYSRQ #endif -#include <linux/module.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/ioport.h> @@ -51,9 +50,6 @@ #define PASS_LIMIT 256 -/* Standard COM flags */ -#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) - static const struct { unsigned int port; unsigned int irq; @@ -892,7 +888,7 @@ static void __init m32r_sio_init_ports(void) up->port.iobase = old_serial_port[i].port; up->port.irq = irq_canonicalize(old_serial_port[i].irq); up->port.uartclk = BAUD_RATE * 16; - up->port.flags = STD_COM_FLAGS; + up->port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; up->port.membase = 0; up->port.iotype = 0; up->port.regshift = 0; @@ -1060,19 +1056,4 @@ static int __init m32r_sio_init(void) return ret; } - -static void __exit m32r_sio_exit(void) -{ - int i; - - for (i = 0; i < UART_NR; i++) - uart_remove_one_port(&m32r_sio_reg, &m32r_sio_ports[i].port); - - uart_unregister_driver(&m32r_sio_reg); -} - -module_init(m32r_sio_init); -module_exit(m32r_sio_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Generic M32R SIO serial driver"); +device_initcall(m32r_sio_init); diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 3f6e0ab725fe..9360801df3c4 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1,7 +1,7 @@ /* * Maxim (Dallas) MAX3107/8/9, MAX14830 serial driver * - * Copyright (C) 2012-2014 Alexander Shiyan <shc_work@mail.ru> + * Copyright (C) 2012-2016 Alexander Shiyan <shc_work@mail.ru> * * Based on max3100.c, by Christian Pellegrin <chripell@evolware.org> * Based on max3110.c, by Feng Tang <feng.tang@intel.com> @@ -32,6 +32,7 @@ #define MAX310X_NAME "max310x" #define MAX310X_MAJOR 204 #define MAX310X_MINOR 209 +#define MAX310X_UART_NRMAX 16 /* MAX310X register definitions */ #define MAX310X_RHR_REG (0x00) /* RX FIFO */ @@ -155,10 +156,6 @@ #define MAX310X_LCR_FORCEPARITY_BIT (1 << 5) /* 9-bit multidrop parity */ #define MAX310X_LCR_TXBREAK_BIT (1 << 6) /* TX break enable */ #define MAX310X_LCR_RTS_BIT (1 << 7) /* RTS pin control */ -#define MAX310X_LCR_WORD_LEN_5 (0x00) -#define MAX310X_LCR_WORD_LEN_6 (0x01) -#define MAX310X_LCR_WORD_LEN_7 (0x02) -#define MAX310X_LCR_WORD_LEN_8 (0x03) /* IRDA register bits */ #define MAX310X_IRDA_IRDAEN_BIT (1 << 0) /* IRDA mode enable */ @@ -262,10 +259,10 @@ struct max310x_one { struct uart_port port; struct work_struct tx_work; struct work_struct md_work; + struct work_struct rs_work; }; struct max310x_port { - struct uart_driver uart; struct max310x_devtype *devtype; struct regmap *regmap; struct mutex mutex; @@ -276,6 +273,17 @@ struct max310x_port { struct max310x_one p[0]; }; +static struct uart_driver max310x_uart = { + .owner = THIS_MODULE, + .driver_name = MAX310X_NAME, + .dev_name = "ttyMAX", + .major = MAX310X_MAJOR, + .minor = MAX310X_MINOR, + .nr = MAX310X_UART_NRMAX, +}; + +static DECLARE_BITMAP(max310x_lines, MAX310X_UART_NRMAX); + static u8 max310x_port_read(struct uart_port *port, u8 reg) { struct max310x_port *s = dev_get_drvdata(port->dev); @@ -594,9 +602,7 @@ static void max310x_handle_rx(struct uart_port *port, unsigned int rxlen) unsigned int sts, ch, flag; if (unlikely(rxlen >= port->fifosize)) { - dev_warn_ratelimited(port->dev, - "Port %i: Possible RX FIFO overrun\n", - port->line); + dev_warn_ratelimited(port->dev, "Possible RX FIFO overrun\n"); port->icount.buf_overrun++; /* Ensure sanity of RX level */ rxlen = port->fifosize; @@ -715,13 +721,13 @@ static irqreturn_t max310x_ist(int irq, void *dev_id) { struct max310x_port *s = (struct max310x_port *)dev_id; - if (s->uart.nr > 1) { + if (s->devtype->nr > 1) { do { unsigned int val = ~0; WARN_ON_ONCE(regmap_read(s->regmap, MAX310X_GLOBALIRQ_REG, &val)); - val = ((1 << s->uart.nr) - 1) & ~val; + val = ((1 << s->devtype->nr) - 1) & ~val; if (!val) break; max310x_port_irq(s, fls(val) - 1); @@ -796,7 +802,7 @@ static void max310x_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { - unsigned int lcr, flow = 0; + unsigned int lcr = 0, flow = 0; int baud; /* Mask termios capabilities we don't support */ @@ -805,17 +811,16 @@ static void max310x_set_termios(struct uart_port *port, /* Word size */ switch (termios->c_cflag & CSIZE) { case CS5: - lcr = MAX310X_LCR_WORD_LEN_5; break; case CS6: - lcr = MAX310X_LCR_WORD_LEN_6; + lcr = MAX310X_LCR_LENGTH0_BIT; break; case CS7: - lcr = MAX310X_LCR_WORD_LEN_7; + lcr = MAX310X_LCR_LENGTH1_BIT; break; case CS8: default: - lcr = MAX310X_LCR_WORD_LEN_8; + lcr = MAX310X_LCR_LENGTH1_BIT | MAX310X_LCR_LENGTH0_BIT; break; } @@ -877,36 +882,45 @@ static void max310x_set_termios(struct uart_port *port, uart_update_timeout(port, termios->c_cflag, baud); } -static int max310x_rs485_config(struct uart_port *port, - struct serial_rs485 *rs485) +static void max310x_rs_proc(struct work_struct *ws) { + struct max310x_one *one = container_of(ws, struct max310x_one, rs_work); unsigned int val; - if (rs485->delay_rts_before_send > 0x0f || - rs485->delay_rts_after_send > 0x0f) - return -ERANGE; + val = (one->port.rs485.delay_rts_before_send << 4) | + one->port.rs485.delay_rts_after_send; + max310x_port_write(&one->port, MAX310X_HDPIXDELAY_REG, val); - val = (rs485->delay_rts_before_send << 4) | - rs485->delay_rts_after_send; - max310x_port_write(port, MAX310X_HDPIXDELAY_REG, val); - if (rs485->flags & SER_RS485_ENABLED) { - max310x_port_update(port, MAX310X_MODE1_REG, + if (one->port.rs485.flags & SER_RS485_ENABLED) { + max310x_port_update(&one->port, MAX310X_MODE1_REG, MAX310X_MODE1_TRNSCVCTRL_BIT, MAX310X_MODE1_TRNSCVCTRL_BIT); - max310x_port_update(port, MAX310X_MODE2_REG, + max310x_port_update(&one->port, MAX310X_MODE2_REG, MAX310X_MODE2_ECHOSUPR_BIT, MAX310X_MODE2_ECHOSUPR_BIT); } else { - max310x_port_update(port, MAX310X_MODE1_REG, + max310x_port_update(&one->port, MAX310X_MODE1_REG, MAX310X_MODE1_TRNSCVCTRL_BIT, 0); - max310x_port_update(port, MAX310X_MODE2_REG, + max310x_port_update(&one->port, MAX310X_MODE2_REG, MAX310X_MODE2_ECHOSUPR_BIT, 0); } +} + +static int max310x_rs485_config(struct uart_port *port, + struct serial_rs485 *rs485) +{ + struct max310x_one *one = container_of(port, struct max310x_one, port); + + if ((rs485->delay_rts_before_send > 0x0f) || + (rs485->delay_rts_after_send > 0x0f)) + return -ERANGE; rs485->flags &= SER_RS485_RTS_ON_SEND | SER_RS485_ENABLED; memset(rs485->padding, 0, sizeof(rs485->padding)); port->rs485 = *rs485; + schedule_work(&one->rs_work); + return 0; } @@ -1009,8 +1023,8 @@ static int __maybe_unused max310x_suspend(struct device *dev) struct max310x_port *s = dev_get_drvdata(dev); int i; - for (i = 0; i < s->uart.nr; i++) { - uart_suspend_port(&s->uart, &s->p[i].port); + for (i = 0; i < s->devtype->nr; i++) { + uart_suspend_port(&max310x_uart, &s->p[i].port); s->devtype->power(&s->p[i].port, 0); } @@ -1022,9 +1036,9 @@ static int __maybe_unused max310x_resume(struct device *dev) struct max310x_port *s = dev_get_drvdata(dev); int i; - for (i = 0; i < s->uart.nr; i++) { + for (i = 0; i < s->devtype->nr; i++) { s->devtype->power(&s->p[i].port, 1); - uart_resume_port(&s->uart, &s->p[i].port); + uart_resume_port(&max310x_uart, &s->p[i].port); } return 0; @@ -1159,18 +1173,6 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype, uartclk = max310x_set_ref_clk(s, freq, xtal); dev_dbg(dev, "Reference clock set to %i Hz\n", uartclk); - /* Register UART driver */ - s->uart.owner = THIS_MODULE; - s->uart.dev_name = "ttyMAX"; - s->uart.major = MAX310X_MAJOR; - s->uart.minor = MAX310X_MINOR; - s->uart.nr = devtype->nr; - ret = uart_register_driver(&s->uart); - if (ret) { - dev_err(dev, "Registering UART driver failed\n"); - goto out_clk; - } - #ifdef CONFIG_GPIOLIB /* Setup GPIO cotroller */ s->gpio.owner = THIS_MODULE; @@ -1183,16 +1185,24 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype, s->gpio.base = -1; s->gpio.ngpio = devtype->nr * 4; s->gpio.can_sleep = 1; - ret = gpiochip_add_data(&s->gpio, s); + ret = devm_gpiochip_add_data(dev, &s->gpio, s); if (ret) - goto out_uart; + goto out_clk; #endif mutex_init(&s->mutex); for (i = 0; i < devtype->nr; i++) { + unsigned int line; + + line = find_first_zero_bit(max310x_lines, MAX310X_UART_NRMAX); + if (line == MAX310X_UART_NRMAX) { + ret = -ERANGE; + goto out_uart; + } + /* Initialize port data */ - s->p[i].port.line = i; + s->p[i].port.line = line; s->p[i].port.dev = dev; s->p[i].port.irq = irq; s->p[i].port.type = PORT_MAX310X; @@ -1214,10 +1224,19 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype, MAX310X_MODE1_IRQSEL_BIT); /* Initialize queue for start TX */ INIT_WORK(&s->p[i].tx_work, max310x_wq_proc); - /* Initialize queue for changing mode */ + /* Initialize queue for changing LOOPBACK mode */ INIT_WORK(&s->p[i].md_work, max310x_md_proc); + /* Initialize queue for changing RS485 mode */ + INIT_WORK(&s->p[i].rs_work, max310x_rs_proc); + /* Register port */ - uart_add_one_port(&s->uart, &s->p[i].port); + ret = uart_add_one_port(&max310x_uart, &s->p[i].port); + if (ret) { + s->p[i].port.dev = NULL; + goto out_uart; + } + set_bit(line, max310x_lines); + /* Go to suspend mode */ devtype->power(&s->p[i].port, 0); } @@ -1230,14 +1249,15 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype, dev_err(dev, "Unable to reguest IRQ %i\n", irq); - mutex_destroy(&s->mutex); - -#ifdef CONFIG_GPIOLIB - gpiochip_remove(&s->gpio); - out_uart: -#endif - uart_unregister_driver(&s->uart); + for (i = 0; i < devtype->nr; i++) { + if (s->p[i].port.dev) { + uart_remove_one_port(&max310x_uart, &s->p[i].port); + clear_bit(s->p[i].port.line, max310x_lines); + } + } + + mutex_destroy(&s->mutex); out_clk: clk_disable_unprepare(s->clk); @@ -1250,19 +1270,16 @@ static int max310x_remove(struct device *dev) struct max310x_port *s = dev_get_drvdata(dev); int i; -#ifdef CONFIG_GPIOLIB - gpiochip_remove(&s->gpio); -#endif - - for (i = 0; i < s->uart.nr; i++) { + for (i = 0; i < s->devtype->nr; i++) { cancel_work_sync(&s->p[i].tx_work); cancel_work_sync(&s->p[i].md_work); - uart_remove_one_port(&s->uart, &s->p[i].port); + cancel_work_sync(&s->p[i].rs_work); + uart_remove_one_port(&max310x_uart, &s->p[i].port); + clear_bit(s->p[i].port.line, max310x_lines); s->devtype->power(&s->p[i].port, 0); } mutex_destroy(&s->mutex); - uart_unregister_driver(&s->uart); clk_disable_unprepare(s->clk); return 0; @@ -1335,7 +1352,7 @@ static const struct spi_device_id max310x_id_table[] = { }; MODULE_DEVICE_TABLE(spi, max310x_id_table); -static struct spi_driver max310x_uart_driver = { +static struct spi_driver max310x_spi_driver = { .driver = { .name = MAX310X_NAME, .of_match_table = of_match_ptr(max310x_dt_ids), @@ -1345,9 +1362,36 @@ static struct spi_driver max310x_uart_driver = { .remove = max310x_spi_remove, .id_table = max310x_id_table, }; -module_spi_driver(max310x_uart_driver); #endif +static int __init max310x_uart_init(void) +{ + int ret; + + bitmap_zero(max310x_lines, MAX310X_UART_NRMAX); + + ret = uart_register_driver(&max310x_uart); + if (ret) + return ret; + +#ifdef CONFIG_SPI_MASTER + spi_register_driver(&max310x_spi_driver); +#endif + + return 0; +} +module_init(max310x_uart_init); + +static void __exit max310x_uart_exit(void) +{ +#ifdef CONFIG_SPI_MASTER + spi_unregister_driver(&max310x_spi_driver); +#endif + + uart_unregister_driver(&max310x_uart); +} +module_exit(max310x_uart_exit); + MODULE_LICENSE("GPL"); MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>"); MODULE_DESCRIPTION("MAX310X serial driver"); diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c index da9e27d3c263..492ec4b375a0 100644 --- a/drivers/tty/serial/mps2-uart.c +++ b/drivers/tty/serial/mps2-uart.c @@ -1,4 +1,6 @@ /* + * MPS2 UART driver + * * Copyright (C) 2015 ARM Limited * * Author: Vladimir Murzin <vladimir.murzin@arm.com> @@ -17,7 +19,6 @@ #include <linux/console.h> #include <linux/io.h> #include <linux/kernel.h> -#include <linux/module.h> #include <linux/of_device.h> #include <linux/of.h> #include <linux/platform_device.h> @@ -569,30 +570,20 @@ static int mps2_serial_probe(struct platform_device *pdev) return 0; } -static int mps2_serial_remove(struct platform_device *pdev) -{ - struct mps2_uart_port *mps_port = platform_get_drvdata(pdev); - - uart_remove_one_port(&mps2_uart_driver, &mps_port->port); - - return 0; -} - #ifdef CONFIG_OF static const struct of_device_id mps2_match[] = { { .compatible = "arm,mps2-uart", }, {}, }; -MODULE_DEVICE_TABLE(of, mps2_match); #endif static struct platform_driver mps2_serial_driver = { .probe = mps2_serial_probe, - .remove = mps2_serial_remove, .driver = { .name = DRIVER_NAME, .of_match_table = of_match_ptr(mps2_match), + .suppress_bind_attrs = true, }, }; @@ -610,16 +601,4 @@ static int __init mps2_uart_init(void) return ret; } -module_init(mps2_uart_init); - -static void __exit mps2_uart_exit(void) -{ - platform_driver_unregister(&mps2_serial_driver); - uart_unregister_driver(&mps2_uart_driver); -} -module_exit(mps2_uart_exit); - -MODULE_AUTHOR("Vladimir Murzin <vladimir.murzin@arm.com>"); -MODULE_DESCRIPTION("MPS2 UART driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" DRIVER_NAME); +arch_initcall(mps2_uart_init); diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index b7d80bd57db9..7312e7e01b7e 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -19,33 +19,147 @@ # define SUPPORT_SYSRQ #endif +#include <linux/kernel.h> #include <linux/atomic.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> -#include <linux/hrtimer.h> #include <linux/module.h> #include <linux/io.h> #include <linux/ioport.h> -#include <linux/irq.h> +#include <linux/interrupt.h> #include <linux/init.h> #include <linux/console.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/serial_core.h> -#include <linux/serial.h> #include <linux/slab.h> #include <linux/clk.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/of.h> #include <linux/of_device.h> - -#include "msm_serial.h" - -#define UARTDM_BURST_SIZE 16 /* in bytes */ -#define UARTDM_TX_AIGN(x) ((x) & ~0x3) /* valid for > 1p3 */ -#define UARTDM_TX_MAX 256 /* in bytes, valid for <= 1p3 */ -#define UARTDM_RX_SIZE (UART_XMIT_SIZE / 4) +#include <linux/wait.h> + +#define UART_MR1 0x0000 + +#define UART_MR1_AUTO_RFR_LEVEL0 0x3F +#define UART_MR1_AUTO_RFR_LEVEL1 0x3FF00 +#define UART_DM_MR1_AUTO_RFR_LEVEL1 0xFFFFFF00 +#define UART_MR1_RX_RDY_CTL BIT(7) +#define UART_MR1_CTS_CTL BIT(6) + +#define UART_MR2 0x0004 +#define UART_MR2_ERROR_MODE BIT(6) +#define UART_MR2_BITS_PER_CHAR 0x30 +#define UART_MR2_BITS_PER_CHAR_5 (0x0 << 4) +#define UART_MR2_BITS_PER_CHAR_6 (0x1 << 4) +#define UART_MR2_BITS_PER_CHAR_7 (0x2 << 4) +#define UART_MR2_BITS_PER_CHAR_8 (0x3 << 4) +#define UART_MR2_STOP_BIT_LEN_ONE (0x1 << 2) +#define UART_MR2_STOP_BIT_LEN_TWO (0x3 << 2) +#define UART_MR2_PARITY_MODE_NONE 0x0 +#define UART_MR2_PARITY_MODE_ODD 0x1 +#define UART_MR2_PARITY_MODE_EVEN 0x2 +#define UART_MR2_PARITY_MODE_SPACE 0x3 +#define UART_MR2_PARITY_MODE 0x3 + +#define UART_CSR 0x0008 + +#define UART_TF 0x000C +#define UARTDM_TF 0x0070 + +#define UART_CR 0x0010 +#define UART_CR_CMD_NULL (0 << 4) +#define UART_CR_CMD_RESET_RX (1 << 4) +#define UART_CR_CMD_RESET_TX (2 << 4) +#define UART_CR_CMD_RESET_ERR (3 << 4) +#define UART_CR_CMD_RESET_BREAK_INT (4 << 4) +#define UART_CR_CMD_START_BREAK (5 << 4) +#define UART_CR_CMD_STOP_BREAK (6 << 4) +#define UART_CR_CMD_RESET_CTS (7 << 4) +#define UART_CR_CMD_RESET_STALE_INT (8 << 4) +#define UART_CR_CMD_PACKET_MODE (9 << 4) +#define UART_CR_CMD_MODE_RESET (12 << 4) +#define UART_CR_CMD_SET_RFR (13 << 4) +#define UART_CR_CMD_RESET_RFR (14 << 4) +#define UART_CR_CMD_PROTECTION_EN (16 << 4) +#define UART_CR_CMD_STALE_EVENT_DISABLE (6 << 8) +#define UART_CR_CMD_STALE_EVENT_ENABLE (80 << 4) +#define UART_CR_CMD_FORCE_STALE (4 << 8) +#define UART_CR_CMD_RESET_TX_READY (3 << 8) +#define UART_CR_TX_DISABLE BIT(3) +#define UART_CR_TX_ENABLE BIT(2) +#define UART_CR_RX_DISABLE BIT(1) +#define UART_CR_RX_ENABLE BIT(0) +#define UART_CR_CMD_RESET_RXBREAK_START ((1 << 11) | (2 << 4)) + +#define UART_IMR 0x0014 +#define UART_IMR_TXLEV BIT(0) +#define UART_IMR_RXSTALE BIT(3) +#define UART_IMR_RXLEV BIT(4) +#define UART_IMR_DELTA_CTS BIT(5) +#define UART_IMR_CURRENT_CTS BIT(6) +#define UART_IMR_RXBREAK_START BIT(10) + +#define UART_IPR_RXSTALE_LAST 0x20 +#define UART_IPR_STALE_LSB 0x1F +#define UART_IPR_STALE_TIMEOUT_MSB 0x3FF80 +#define UART_DM_IPR_STALE_TIMEOUT_MSB 0xFFFFFF80 + +#define UART_IPR 0x0018 +#define UART_TFWR 0x001C +#define UART_RFWR 0x0020 +#define UART_HCR 0x0024 + +#define UART_MREG 0x0028 +#define UART_NREG 0x002C +#define UART_DREG 0x0030 +#define UART_MNDREG 0x0034 +#define UART_IRDA 0x0038 +#define UART_MISR_MODE 0x0040 +#define UART_MISR_RESET 0x0044 +#define UART_MISR_EXPORT 0x0048 +#define UART_MISR_VAL 0x004C +#define UART_TEST_CTRL 0x0050 + +#define UART_SR 0x0008 +#define UART_SR_HUNT_CHAR BIT(7) +#define UART_SR_RX_BREAK BIT(6) +#define UART_SR_PAR_FRAME_ERR BIT(5) +#define UART_SR_OVERRUN BIT(4) +#define UART_SR_TX_EMPTY BIT(3) +#define UART_SR_TX_READY BIT(2) +#define UART_SR_RX_FULL BIT(1) +#define UART_SR_RX_READY BIT(0) + +#define UART_RF 0x000C +#define UARTDM_RF 0x0070 +#define UART_MISR 0x0010 +#define UART_ISR 0x0014 +#define UART_ISR_TX_READY BIT(7) + +#define UARTDM_RXFS 0x50 +#define UARTDM_RXFS_BUF_SHIFT 0x7 +#define UARTDM_RXFS_BUF_MASK 0x7 + +#define UARTDM_DMEN 0x3C +#define UARTDM_DMEN_RX_SC_ENABLE BIT(5) +#define UARTDM_DMEN_TX_SC_ENABLE BIT(4) + +#define UARTDM_DMEN_TX_BAM_ENABLE BIT(2) /* UARTDM_1P4 */ +#define UARTDM_DMEN_TX_DM_ENABLE BIT(0) /* < UARTDM_1P4 */ + +#define UARTDM_DMEN_RX_BAM_ENABLE BIT(3) /* UARTDM_1P4 */ +#define UARTDM_DMEN_RX_DM_ENABLE BIT(1) /* < UARTDM_1P4 */ + +#define UARTDM_DMRX 0x34 +#define UARTDM_NCF_TX 0x40 +#define UARTDM_RX_TOTAL_SNAP 0x38 + +#define UARTDM_BURST_SIZE 16 /* in bytes */ +#define UARTDM_TX_AIGN(x) ((x) & ~0x3) /* valid for > 1p3 */ +#define UARTDM_TX_MAX 256 /* in bytes, valid for <= 1p3 */ +#define UARTDM_RX_SIZE (UART_XMIT_SIZE / 4) enum { UARTDM_1P1 = 1, @@ -78,10 +192,65 @@ struct msm_port { struct msm_dma rx_dma; }; +#define UART_TO_MSM(uart_port) container_of(uart_port, struct msm_port, uart) + +static +void msm_write(struct uart_port *port, unsigned int val, unsigned int off) +{ + writel_relaxed(val, port->membase + off); +} + +static +unsigned int msm_read(struct uart_port *port, unsigned int off) +{ + return readl_relaxed(port->membase + off); +} + +/* + * Setup the MND registers to use the TCXO clock. + */ +static void msm_serial_set_mnd_regs_tcxo(struct uart_port *port) +{ + msm_write(port, 0x06, UART_MREG); + msm_write(port, 0xF1, UART_NREG); + msm_write(port, 0x0F, UART_DREG); + msm_write(port, 0x1A, UART_MNDREG); + port->uartclk = 1843200; +} + +/* + * Setup the MND registers to use the TCXO clock divided by 4. + */ +static void msm_serial_set_mnd_regs_tcxoby4(struct uart_port *port) +{ + msm_write(port, 0x18, UART_MREG); + msm_write(port, 0xF6, UART_NREG); + msm_write(port, 0x0F, UART_DREG); + msm_write(port, 0x0A, UART_MNDREG); + port->uartclk = 1843200; +} + +static void msm_serial_set_mnd_regs(struct uart_port *port) +{ + struct msm_port *msm_port = UART_TO_MSM(port); + + /* + * These registers don't exist so we change the clk input rate + * on uartdm hardware instead + */ + if (msm_port->is_uartdm) + return; + + if (port->uartclk == 19200000) + msm_serial_set_mnd_regs_tcxo(port); + else if (port->uartclk == 4800000) + msm_serial_set_mnd_regs_tcxoby4(port); +} + static void msm_handle_tx(struct uart_port *port); static void msm_start_rx_dma(struct msm_port *msm_port); -void msm_stop_dma(struct uart_port *port, struct msm_dma *dma) +static void msm_stop_dma(struct uart_port *port, struct msm_dma *dma) { struct device *dev = port->dev; unsigned int mapped; @@ -388,10 +557,6 @@ static void msm_complete_rx_dma(void *args) val &= ~dma->enable_bit; msm_write(port, val, UARTDM_DMEN); - /* Restore interrupts */ - msm_port->imr |= UART_IMR_RXLEV | UART_IMR_RXSTALE; - msm_write(port, msm_port->imr, UART_IMR); - if (msm_read(port, UART_SR) & UART_SR_OVERRUN) { port->icount.overrun++; tty_insert_flip_char(tport, 0, TTY_OVERRUN); @@ -726,7 +891,7 @@ static void msm_handle_tx(struct uart_port *port) return; } - pio_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); + pio_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_min = 1; /* Always DMA */ diff --git a/drivers/tty/serial/msm_serial.h b/drivers/tty/serial/msm_serial.h deleted file mode 100644 index 178645826f16..000000000000 --- a/drivers/tty/serial/msm_serial.h +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Copyright (C) 2007 Google, Inc. - * Author: Robert Love <rlove@google.com> - * Copyright (c) 2011, Code Aurora Forum. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef __DRIVERS_SERIAL_MSM_SERIAL_H -#define __DRIVERS_SERIAL_MSM_SERIAL_H - -#define UART_MR1 0x0000 - -#define UART_MR1_AUTO_RFR_LEVEL0 0x3F -#define UART_MR1_AUTO_RFR_LEVEL1 0x3FF00 -#define UART_DM_MR1_AUTO_RFR_LEVEL1 0xFFFFFF00 -#define UART_MR1_RX_RDY_CTL BIT(7) -#define UART_MR1_CTS_CTL BIT(6) - -#define UART_MR2 0x0004 -#define UART_MR2_ERROR_MODE BIT(6) -#define UART_MR2_BITS_PER_CHAR 0x30 -#define UART_MR2_BITS_PER_CHAR_5 (0x0 << 4) -#define UART_MR2_BITS_PER_CHAR_6 (0x1 << 4) -#define UART_MR2_BITS_PER_CHAR_7 (0x2 << 4) -#define UART_MR2_BITS_PER_CHAR_8 (0x3 << 4) -#define UART_MR2_STOP_BIT_LEN_ONE (0x1 << 2) -#define UART_MR2_STOP_BIT_LEN_TWO (0x3 << 2) -#define UART_MR2_PARITY_MODE_NONE 0x0 -#define UART_MR2_PARITY_MODE_ODD 0x1 -#define UART_MR2_PARITY_MODE_EVEN 0x2 -#define UART_MR2_PARITY_MODE_SPACE 0x3 -#define UART_MR2_PARITY_MODE 0x3 - -#define UART_CSR 0x0008 - -#define UART_TF 0x000C -#define UARTDM_TF 0x0070 - -#define UART_CR 0x0010 -#define UART_CR_CMD_NULL (0 << 4) -#define UART_CR_CMD_RESET_RX (1 << 4) -#define UART_CR_CMD_RESET_TX (2 << 4) -#define UART_CR_CMD_RESET_ERR (3 << 4) -#define UART_CR_CMD_RESET_BREAK_INT (4 << 4) -#define UART_CR_CMD_START_BREAK (5 << 4) -#define UART_CR_CMD_STOP_BREAK (6 << 4) -#define UART_CR_CMD_RESET_CTS (7 << 4) -#define UART_CR_CMD_RESET_STALE_INT (8 << 4) -#define UART_CR_CMD_PACKET_MODE (9 << 4) -#define UART_CR_CMD_MODE_RESET (12 << 4) -#define UART_CR_CMD_SET_RFR (13 << 4) -#define UART_CR_CMD_RESET_RFR (14 << 4) -#define UART_CR_CMD_PROTECTION_EN (16 << 4) -#define UART_CR_CMD_STALE_EVENT_DISABLE (6 << 8) -#define UART_CR_CMD_STALE_EVENT_ENABLE (80 << 4) -#define UART_CR_CMD_FORCE_STALE (4 << 8) -#define UART_CR_CMD_RESET_TX_READY (3 << 8) -#define UART_CR_TX_DISABLE BIT(3) -#define UART_CR_TX_ENABLE BIT(2) -#define UART_CR_RX_DISABLE BIT(1) -#define UART_CR_RX_ENABLE BIT(0) -#define UART_CR_CMD_RESET_RXBREAK_START ((1 << 11) | (2 << 4)) - -#define UART_IMR 0x0014 -#define UART_IMR_TXLEV BIT(0) -#define UART_IMR_RXSTALE BIT(3) -#define UART_IMR_RXLEV BIT(4) -#define UART_IMR_DELTA_CTS BIT(5) -#define UART_IMR_CURRENT_CTS BIT(6) -#define UART_IMR_RXBREAK_START BIT(10) - -#define UART_IPR_RXSTALE_LAST 0x20 -#define UART_IPR_STALE_LSB 0x1F -#define UART_IPR_STALE_TIMEOUT_MSB 0x3FF80 -#define UART_DM_IPR_STALE_TIMEOUT_MSB 0xFFFFFF80 - -#define UART_IPR 0x0018 -#define UART_TFWR 0x001C -#define UART_RFWR 0x0020 -#define UART_HCR 0x0024 - -#define UART_MREG 0x0028 -#define UART_NREG 0x002C -#define UART_DREG 0x0030 -#define UART_MNDREG 0x0034 -#define UART_IRDA 0x0038 -#define UART_MISR_MODE 0x0040 -#define UART_MISR_RESET 0x0044 -#define UART_MISR_EXPORT 0x0048 -#define UART_MISR_VAL 0x004C -#define UART_TEST_CTRL 0x0050 - -#define UART_SR 0x0008 -#define UART_SR_HUNT_CHAR BIT(7) -#define UART_SR_RX_BREAK BIT(6) -#define UART_SR_PAR_FRAME_ERR BIT(5) -#define UART_SR_OVERRUN BIT(4) -#define UART_SR_TX_EMPTY BIT(3) -#define UART_SR_TX_READY BIT(2) -#define UART_SR_RX_FULL BIT(1) -#define UART_SR_RX_READY BIT(0) - -#define UART_RF 0x000C -#define UARTDM_RF 0x0070 -#define UART_MISR 0x0010 -#define UART_ISR 0x0014 -#define UART_ISR_TX_READY BIT(7) - -#define UARTDM_RXFS 0x50 -#define UARTDM_RXFS_BUF_SHIFT 0x7 -#define UARTDM_RXFS_BUF_MASK 0x7 - -#define UARTDM_DMEN 0x3C -#define UARTDM_DMEN_RX_SC_ENABLE BIT(5) -#define UARTDM_DMEN_TX_SC_ENABLE BIT(4) - -#define UARTDM_DMEN_TX_BAM_ENABLE BIT(2) /* UARTDM_1P4 */ -#define UARTDM_DMEN_TX_DM_ENABLE BIT(0) /* < UARTDM_1P4 */ - -#define UARTDM_DMEN_RX_BAM_ENABLE BIT(3) /* UARTDM_1P4 */ -#define UARTDM_DMEN_RX_DM_ENABLE BIT(1) /* < UARTDM_1P4 */ - -#define UARTDM_DMRX 0x34 -#define UARTDM_NCF_TX 0x40 -#define UARTDM_RX_TOTAL_SNAP 0x38 - -#define UART_TO_MSM(uart_port) ((struct msm_port *) uart_port) - -static inline -void msm_write(struct uart_port *port, unsigned int val, unsigned int off) -{ - writel_relaxed(val, port->membase + off); -} - -static inline -unsigned int msm_read(struct uart_port *port, unsigned int off) -{ - return readl_relaxed(port->membase + off); -} - -/* - * Setup the MND registers to use the TCXO clock. - */ -static inline void msm_serial_set_mnd_regs_tcxo(struct uart_port *port) -{ - msm_write(port, 0x06, UART_MREG); - msm_write(port, 0xF1, UART_NREG); - msm_write(port, 0x0F, UART_DREG); - msm_write(port, 0x1A, UART_MNDREG); - port->uartclk = 1843200; -} - -/* - * Setup the MND registers to use the TCXO clock divided by 4. - */ -static inline void msm_serial_set_mnd_regs_tcxoby4(struct uart_port *port) -{ - msm_write(port, 0x18, UART_MREG); - msm_write(port, 0xF6, UART_NREG); - msm_write(port, 0x0F, UART_DREG); - msm_write(port, 0x0A, UART_MNDREG); - port->uartclk = 1843200; -} - -static inline -void msm_serial_set_mnd_regs_from_uartclk(struct uart_port *port) -{ - if (port->uartclk == 19200000) - msm_serial_set_mnd_regs_tcxo(port); - else if (port->uartclk == 4800000) - msm_serial_set_mnd_regs_tcxoby4(port); -} - -#define msm_serial_set_mnd_regs msm_serial_set_mnd_regs_from_uartclk - -#endif /* __DRIVERS_SERIAL_MSM_SERIAL_H */ diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c index ce362bd51de7..45b57c294d13 100644 --- a/drivers/tty/serial/mvebu-uart.c +++ b/drivers/tty/serial/mvebu-uart.c @@ -300,6 +300,8 @@ static int mvebu_uart_startup(struct uart_port *port) static void mvebu_uart_shutdown(struct uart_port *port) { writel(0, port->membase + UART_CTRL); + + free_irq(port->irq, port); } static void mvebu_uart_set_termios(struct uart_port *port, diff --git a/drivers/tty/serial/pic32_uart.c b/drivers/tty/serial/pic32_uart.c index 62a43bf5698e..7f8e99bbcb73 100644 --- a/drivers/tty/serial/pic32_uart.c +++ b/drivers/tty/serial/pic32_uart.c @@ -445,7 +445,6 @@ static int pic32_uart_startup(struct uart_port *port) sport->idx); if (!sport->irq_rx_name) { dev_err(port->dev, "%s: kasprintf err!", __func__); - kfree(sport->irq_fault_name); ret = -ENOMEM; goto out_f; } diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index e156e39d620c..b24b0556f5a8 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -1720,7 +1720,7 @@ static int __init pmz_init_port(struct uart_pmac_port *uap) r_ports = platform_get_resource(uap->pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(uap->pdev, 0); - if (!r_ports || !irq) + if (!r_ports || irq <= 0) return -ENODEV; uap->port.mapbase = r_ports->start; diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c index 41eab75ba2af..cd9d9e878475 100644 --- a/drivers/tty/serial/pxa.c +++ b/drivers/tty/serial/pxa.c @@ -27,7 +27,6 @@ #define SUPPORT_SYSRQ #endif -#include <linux/module.h> #include <linux/ioport.h> #include <linux/init.h> #include <linux/console.h> @@ -829,7 +828,6 @@ static const struct of_device_id serial_pxa_dt_ids[] = { { .compatible = "mrvl,mmp-uart", }, {} }; -MODULE_DEVICE_TABLE(of, serial_pxa_dt_ids); static int serial_pxa_probe_dt(struct platform_device *pdev, struct uart_pxa_port *sport) @@ -914,28 +912,15 @@ static int serial_pxa_probe(struct platform_device *dev) return ret; } -static int serial_pxa_remove(struct platform_device *dev) -{ - struct uart_pxa_port *sport = platform_get_drvdata(dev); - - uart_remove_one_port(&serial_pxa_reg, &sport->port); - - clk_unprepare(sport->clk); - clk_put(sport->clk); - kfree(sport); - - return 0; -} - static struct platform_driver serial_pxa_driver = { .probe = serial_pxa_probe, - .remove = serial_pxa_remove, .driver = { .name = "pxa2xx-uart", #ifdef CONFIG_PM .pm = &serial_pxa_pm_ops, #endif + .suppress_bind_attrs = true, .of_match_table = serial_pxa_dt_ids, }, }; @@ -954,15 +939,4 @@ static int __init serial_pxa_init(void) return ret; } - -static void __exit serial_pxa_exit(void) -{ - platform_driver_unregister(&serial_pxa_driver); - uart_unregister_driver(&serial_pxa_reg); -} - -module_init(serial_pxa_init); -module_exit(serial_pxa_exit); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:pxa2xx-uart"); +device_initcall(serial_pxa_init); diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 99bb23161dd6..ae2095a66708 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -169,8 +169,7 @@ static void s3c24xx_serial_stop_tx(struct uart_port *port) return; if (s3c24xx_serial_has_interrupt_mask(port)) - __set_bit(S3C64XX_UINTM_TXD, - portaddrl(port, S3C64XX_UINTM)); + s3c24xx_set_bit(port, S3C64XX_UINTM_TXD, S3C64XX_UINTM); else disable_irq_nosync(ourport->tx_irq); @@ -235,8 +234,7 @@ static void enable_tx_dma(struct s3c24xx_uart_port *ourport) /* Mask Tx interrupt */ if (s3c24xx_serial_has_interrupt_mask(port)) - __set_bit(S3C64XX_UINTM_TXD, - portaddrl(port, S3C64XX_UINTM)); + s3c24xx_set_bit(port, S3C64XX_UINTM_TXD, S3C64XX_UINTM); else disable_irq_nosync(ourport->tx_irq); @@ -269,8 +267,8 @@ static void enable_tx_pio(struct s3c24xx_uart_port *ourport) /* Unmask Tx interrupt */ if (s3c24xx_serial_has_interrupt_mask(port)) - __clear_bit(S3C64XX_UINTM_TXD, - portaddrl(port, S3C64XX_UINTM)); + s3c24xx_clear_bit(port, S3C64XX_UINTM_TXD, + S3C64XX_UINTM); else enable_irq(ourport->tx_irq); @@ -397,8 +395,8 @@ static void s3c24xx_serial_stop_rx(struct uart_port *port) if (rx_enabled(port)) { dbg("s3c24xx_serial_stop_rx: port=%p\n", port); if (s3c24xx_serial_has_interrupt_mask(port)) - __set_bit(S3C64XX_UINTM_RXD, - portaddrl(port, S3C64XX_UINTM)); + s3c24xx_set_bit(port, S3C64XX_UINTM_RXD, + S3C64XX_UINTM); else disable_irq_nosync(ourport->rx_irq); rx_enabled(port) = 0; @@ -1069,7 +1067,7 @@ static int s3c64xx_serial_startup(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); /* Enable Rx Interrupt */ - __clear_bit(S3C64XX_UINTM_RXD, portaddrl(port, S3C64XX_UINTM)); + s3c24xx_clear_bit(port, S3C64XX_UINTM_RXD, S3C64XX_UINTM); dbg("s3c64xx_serial_startup ok\n"); return ret; @@ -1684,7 +1682,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, return -ENODEV; if (port->mapbase != 0) - return 0; + return -EINVAL; /* setup info for port */ port->dev = &platdev->dev; @@ -1738,22 +1736,25 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->dma = devm_kzalloc(port->dev, sizeof(*ourport->dma), GFP_KERNEL); - if (!ourport->dma) - return -ENOMEM; + if (!ourport->dma) { + ret = -ENOMEM; + goto err; + } } ourport->clk = clk_get(&platdev->dev, "uart"); if (IS_ERR(ourport->clk)) { pr_err("%s: Controller clock not found\n", dev_name(&platdev->dev)); - return PTR_ERR(ourport->clk); + ret = PTR_ERR(ourport->clk); + goto err; } ret = clk_prepare_enable(ourport->clk); if (ret) { pr_err("uart: clock failed to prepare+enable: %d\n", ret); clk_put(ourport->clk); - return ret; + goto err; } /* Keep all interrupts masked and cleared */ @@ -1769,7 +1770,12 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, /* reset the fifos (and setup the uart) */ s3c24xx_serial_resetport(port, cfg); + return 0; + +err: + port->mapbase = 0; + return ret; } /* Device driver serial port probe */ @@ -1836,8 +1842,6 @@ static int s3c24xx_serial_probe(struct platform_device *pdev) ourport->min_dma_size = max_t(int, ourport->port.fifosize, dma_get_cache_alignment()); - probe_index++; - dbg("%s: initialising port %p...\n", __func__, ourport); ret = s3c24xx_serial_init_port(ourport, pdev); @@ -1867,6 +1871,8 @@ static int s3c24xx_serial_probe(struct platform_device *pdev) if (ret < 0) dev_err(&pdev->dev, "failed to add cpufreq notifier\n"); + probe_index++; + return 0; } diff --git a/drivers/tty/serial/samsung.h b/drivers/tty/serial/samsung.h index fc5deaa4f382..2ae4fcee1814 100644 --- a/drivers/tty/serial/samsung.h +++ b/drivers/tty/serial/samsung.h @@ -117,10 +117,38 @@ struct s3c24xx_uart_port { #define portaddrl(port, reg) \ ((unsigned long *)(unsigned long)((port)->membase + (reg))) -#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg))) -#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg))) - -#define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg)) -#define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg)) +#define rd_regb(port, reg) (readb_relaxed(portaddr(port, reg))) +#define rd_regl(port, reg) (readl_relaxed(portaddr(port, reg))) + +#define wr_regb(port, reg, val) writeb_relaxed(val, portaddr(port, reg)) +#define wr_regl(port, reg, val) writel_relaxed(val, portaddr(port, reg)) + +/* Byte-order aware bit setting/clearing functions. */ + +static inline void s3c24xx_set_bit(struct uart_port *port, int idx, + unsigned int reg) +{ + unsigned long flags; + u32 val; + + local_irq_save(flags); + val = rd_regl(port, reg); + val |= (1 << idx); + wr_regl(port, reg, val); + local_irq_restore(flags); +} + +static inline void s3c24xx_clear_bit(struct uart_port *port, int idx, + unsigned int reg) +{ + unsigned long flags; + u32 val; + + local_irq_save(flags); + val = rd_regl(port, reg); + val &= ~(1 << idx); + wr_regl(port, reg, val); + local_irq_restore(flags); +} #endif diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c index 1dba6719db8d..731ac35acb31 100644 --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -1317,7 +1317,12 @@ static int tegra_uart_probe(struct platform_device *pdev) } u->iotype = UPIO_MEM32; - u->irq = platform_get_irq(pdev, 0); + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(&pdev->dev, "Couldn't get IRQ\n"); + return ret; + } + u->irq = ret; u->regshift = 2; ret = uart_add_one_port(&tegra_uart_driver, u); if (ret < 0) { diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index a333c59cba2c..9fc15335c8c5 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -887,7 +887,7 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port, /* * Free and release old regions */ - if (old_type != PORT_UNKNOWN) + if (old_type != PORT_UNKNOWN && uport->ops->release_port) uport->ops->release_port(uport); uport->iobase = new_port; @@ -900,7 +900,7 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port, /* * Claim and map the new regions */ - if (uport->type != PORT_UNKNOWN) { + if (uport->type != PORT_UNKNOWN && uport->ops->request_port) { retval = uport->ops->request_port(uport); } else { /* Always success - Jean II */ @@ -1125,7 +1125,7 @@ static int uart_do_autoconfig(struct tty_struct *tty,struct uart_state *state) * If we already have a port type configured, * we must release its resources. */ - if (uport->type != PORT_UNKNOWN) + if (uport->type != PORT_UNKNOWN && uport->ops->release_port) uport->ops->release_port(uport); flags = UART_CONFIG_TYPE; @@ -2897,7 +2897,7 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport) /* * Free the port IO and memory resources, if any. */ - if (uport->type != PORT_UNKNOWN) + if (uport->type != PORT_UNKNOWN && uport->ops->release_port) uport->ops->release_port(uport); kfree(uport->tty_groups); diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c index e8dd5097dc56..d2da6aa7f27d 100644 --- a/drivers/tty/serial/serial_mctrl_gpio.c +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -52,6 +52,9 @@ void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) int value_array[UART_GPIO_MAX]; unsigned int count = 0; + if (gpios == NULL) + return; + for (i = 0; i < UART_GPIO_MAX; i++) if (gpios->gpio[i] && mctrl_gpios_desc[i].dir_out) { desc_array[count] = gpios->gpio[i]; @@ -73,6 +76,9 @@ unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) { enum mctrl_gpio_idx i; + if (gpios == NULL) + return *mctrl; + for (i = 0; i < UART_GPIO_MAX; i++) { if (gpios->gpio[i] && !mctrl_gpios_desc[i].dir_out) { if (gpiod_get_value(gpios->gpio[i])) @@ -86,6 +92,27 @@ unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) } EXPORT_SYMBOL_GPL(mctrl_gpio_get); +unsigned int +mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + enum mctrl_gpio_idx i; + + if (gpios == NULL) + return *mctrl; + + for (i = 0; i < UART_GPIO_MAX; i++) { + if (gpios->gpio[i] && mctrl_gpios_desc[i].dir_out) { + if (gpiod_get_value(gpios->gpio[i])) + *mctrl |= mctrl_gpios_desc[i].mctrl; + else + *mctrl &= ~mctrl_gpios_desc[i].mctrl; + } + } + + return *mctrl; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_get_outputs); + struct mctrl_gpios *mctrl_gpio_init_noauto(struct device *dev, unsigned int idx) { struct mctrl_gpios *gpios; @@ -203,6 +230,9 @@ void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios) { enum mctrl_gpio_idx i; + if (gpios == NULL) + return; + for (i = 0; i < UART_GPIO_MAX; i++) { if (gpios->irq[i]) devm_free_irq(gpios->port->dev, gpios->irq[i], gpios); @@ -218,6 +248,9 @@ void mctrl_gpio_enable_ms(struct mctrl_gpios *gpios) { enum mctrl_gpio_idx i; + if (gpios == NULL) + return; + /* .enable_ms may be called multiple times */ if (gpios->mctrl_on) return; @@ -240,6 +273,9 @@ void mctrl_gpio_disable_ms(struct mctrl_gpios *gpios) { enum mctrl_gpio_idx i; + if (gpios == NULL) + return; + if (!gpios->mctrl_on) return; diff --git a/drivers/tty/serial/serial_mctrl_gpio.h b/drivers/tty/serial/serial_mctrl_gpio.h index 332a33ab0647..fa000bcff217 100644 --- a/drivers/tty/serial/serial_mctrl_gpio.h +++ b/drivers/tty/serial/serial_mctrl_gpio.h @@ -48,12 +48,19 @@ struct mctrl_gpios; void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl); /* - * Get state of the modem control output lines from GPIOs. + * Get state of the modem control input lines from GPIOs. * The mctrl flags are updated and returned. */ unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl); /* + * Get state of the modem control output lines from GPIOs. + * The mctrl flags are updated and returned. + */ +unsigned int +mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl); + +/* * Returns the associated struct gpio_desc to the modem line gidx */ struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios, @@ -107,6 +114,12 @@ unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) return *mctrl; } +static inline unsigned int +mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + return *mctrl; +} + static inline struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios, enum mctrl_gpio_idx gidx) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 0130feb069ae..d86eee38aae6 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -57,6 +57,7 @@ #include <asm/sh_bios.h> #endif +#include "serial_mctrl_gpio.h" #include "sh-sci.h" /* Offsets into the sci_port->irqs array */ @@ -111,6 +112,7 @@ struct sci_port { unsigned int error_clear; unsigned int sampling_rate_mask; resource_size_t reg_size; + struct mctrl_gpios *gpios; /* Break timer */ struct timer_list break_timer; @@ -139,6 +141,8 @@ struct sci_port { struct timer_list rx_timer; unsigned int rx_timeout; #endif + + bool autorts; }; #define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS @@ -701,7 +705,6 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) static void sci_init_pins(struct uart_port *port, unsigned int cflag) { struct sci_port *s = to_sci_port(port); - const struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR; /* * Use port-specific handler if provided. @@ -711,21 +714,28 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag) return; } - /* - * For the generic path SCSPTR is necessary. Bail out if that's - * unavailable, too. - */ - if (!reg->size) - return; - - if ((s->cfg->capabilities & SCIx_HAVE_RTSCTS) && - ((!(cflag & CRTSCTS)))) { - unsigned short status; + if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { + u16 ctrl = serial_port_in(port, SCPCR); + + /* Enable RXD and TXD pin functions */ + ctrl &= ~(SCPCR_RXDC | SCPCR_TXDC); + if (to_sci_port(port)->cfg->capabilities & SCIx_HAVE_RTSCTS) { + /* RTS# is output, driven 1 */ + ctrl |= SCPCR_RTSC; + serial_port_out(port, SCPDR, + serial_port_in(port, SCPDR) | SCPDR_RTSD); + /* Enable CTS# pin function */ + ctrl &= ~SCPCR_CTSC; + } + serial_port_out(port, SCPCR, ctrl); + } else if (sci_getreg(port, SCSPTR)->size) { + u16 status = serial_port_in(port, SCSPTR); - status = serial_port_in(port, SCSPTR); - status &= ~SCSPTR_CTSIO; - status |= SCSPTR_RTSIO; - serial_port_out(port, SCSPTR, status); /* Set RTS = 1 */ + /* RTS# is output, driven 1 */ + status |= SCSPTR_RTSIO | SCSPTR_RTSDT; + /* CTS# and SCK are inputs */ + status &= ~(SCSPTR_CTSIO | SCSPTR_SCKIO); + serial_port_out(port, SCSPTR, status); } } @@ -1803,6 +1813,46 @@ static unsigned int sci_tx_empty(struct uart_port *port) return (status & SCxSR_TEND(port)) && !in_tx_fifo ? TIOCSER_TEMT : 0; } +static void sci_set_rts(struct uart_port *port, bool state) +{ + if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { + u16 data = serial_port_in(port, SCPDR); + + /* Active low */ + if (state) + data &= ~SCPDR_RTSD; + else + data |= SCPDR_RTSD; + serial_port_out(port, SCPDR, data); + + /* RTS# is output */ + serial_port_out(port, SCPCR, + serial_port_in(port, SCPCR) | SCPCR_RTSC); + } else if (sci_getreg(port, SCSPTR)->size) { + u16 ctrl = serial_port_in(port, SCSPTR); + + /* Active low */ + if (state) + ctrl &= ~SCSPTR_RTSDT; + else + ctrl |= SCSPTR_RTSDT; + serial_port_out(port, SCSPTR, ctrl); + } +} + +static bool sci_get_cts(struct uart_port *port) +{ + if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { + /* Active low */ + return !(serial_port_in(port, SCPDR) & SCPDR_CTSD); + } else if (sci_getreg(port, SCSPTR)->size) { + /* Active low */ + return !(serial_port_in(port, SCSPTR) & SCSPTR_CTSDT); + } + + return true; +} + /* * Modem control is a bit of a mixed bag for SCI(F) ports. Generally * CTS/RTS is supported in hardware by at least one port and controlled @@ -1817,6 +1867,8 @@ static unsigned int sci_tx_empty(struct uart_port *port) */ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) { + struct sci_port *s = to_sci_port(port); + if (mctrl & TIOCM_LOOP) { const struct plat_sci_reg *reg; @@ -1829,25 +1881,72 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) serial_port_in(port, SCFCR) | SCFCR_LOOP); } + + mctrl_gpio_set(s->gpios, mctrl); + + if (!(s->cfg->capabilities & SCIx_HAVE_RTSCTS)) + return; + + if (!(mctrl & TIOCM_RTS)) { + /* Disable Auto RTS */ + serial_port_out(port, SCFCR, + serial_port_in(port, SCFCR) & ~SCFCR_MCE); + + /* Clear RTS */ + sci_set_rts(port, 0); + } else if (s->autorts) { + if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { + /* Enable RTS# pin function */ + serial_port_out(port, SCPCR, + serial_port_in(port, SCPCR) & ~SCPCR_RTSC); + } + + /* Enable Auto RTS */ + serial_port_out(port, SCFCR, + serial_port_in(port, SCFCR) | SCFCR_MCE); + } else { + /* Set RTS */ + sci_set_rts(port, 1); + } } static unsigned int sci_get_mctrl(struct uart_port *port) { + struct sci_port *s = to_sci_port(port); + struct mctrl_gpios *gpios = s->gpios; + unsigned int mctrl = 0; + + mctrl_gpio_get(gpios, &mctrl); + /* * CTS/RTS is handled in hardware when supported, while nothing - * else is wired up. Keep it simple and simply assert DSR/CAR. + * else is wired up. */ - return TIOCM_DSR | TIOCM_CAR; + if (s->autorts) { + if (sci_get_cts(port)) + mctrl |= TIOCM_CTS; + } else if (IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(gpios, UART_GPIO_CTS))) { + mctrl |= TIOCM_CTS; + } + if (IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(gpios, UART_GPIO_DSR))) + mctrl |= TIOCM_DSR; + if (IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(gpios, UART_GPIO_DCD))) + mctrl |= TIOCM_CAR; + + return mctrl; +} + +static void sci_enable_ms(struct uart_port *port) +{ + mctrl_gpio_enable_ms(to_sci_port(port)->gpios); } static void sci_break_ctl(struct uart_port *port, int break_state) { - struct sci_port *s = to_sci_port(port); - const struct plat_sci_reg *reg = sci_regmap[s->cfg->regtype] + SCSPTR; unsigned short scscr, scsptr; /* check wheter the port has SCSPTR */ - if (!reg->size) { + if (!sci_getreg(port, SCSPTR)->size) { /* * Not supported by hardware. Most parts couple break and rx * interrupts together, with break detection always enabled. @@ -1873,7 +1972,6 @@ static void sci_break_ctl(struct uart_port *port, int break_state) static int sci_startup(struct uart_port *port) { struct sci_port *s = to_sci_port(port); - unsigned long flags; int ret; dev_dbg(port->dev, "%s(%d)\n", __func__, port->line); @@ -1884,11 +1982,6 @@ static int sci_startup(struct uart_port *port) sci_request_dma(port); - spin_lock_irqsave(&port->lock, flags); - sci_start_tx(port); - sci_start_rx(port); - spin_unlock_irqrestore(&port->lock, flags); - return 0; } @@ -1896,12 +1989,19 @@ static void sci_shutdown(struct uart_port *port) { struct sci_port *s = to_sci_port(port); unsigned long flags; + u16 scr; dev_dbg(port->dev, "%s(%d)\n", __func__, port->line); + s->autorts = false; + mctrl_gpio_disable_ms(to_sci_port(port)->gpios); + spin_lock_irqsave(&port->lock, flags); sci_stop_rx(port); sci_stop_tx(port); + /* Stop RX and TX, disable related interrupts, keep clock source */ + scr = serial_port_in(port, SCSCR); + serial_port_out(port, SCSCR, scr & (SCSCR_CKE1 | SCSCR_CKE0)); spin_unlock_irqrestore(&port->lock, flags); #ifdef CONFIG_SERIAL_SH_SCI_DMA @@ -2056,6 +2156,15 @@ static void sci_reset(struct uart_port *port) reg = sci_getreg(port, SCFCR); if (reg->size) serial_port_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); + + sci_clear_SCxSR(port, + SCxSR_RDxF_CLEAR(port) & SCxSR_ERROR_CLEAR(port) & + SCxSR_BREAK_CLEAR(port)); + if (sci_getreg(port, SCLSR)->size) { + status = serial_port_in(port, SCLSR); + status &= ~(SCLSR_TO | SCLSR_ORER); + serial_port_out(port, SCLSR, status); + } } static void sci_set_termios(struct uart_port *port, struct ktermios *termios, @@ -2218,15 +2327,18 @@ done: sci_init_pins(port, termios->c_cflag); + port->status &= ~UPSTAT_AUTOCTS; + s->autorts = false; reg = sci_getreg(port, SCFCR); if (reg->size) { unsigned short ctrl = serial_port_in(port, SCFCR); - if (s->cfg->capabilities & SCIx_HAVE_RTSCTS) { - if (termios->c_cflag & CRTSCTS) - ctrl |= SCFCR_MCE; - else - ctrl &= ~SCFCR_MCE; + if ((port->flags & UPF_HARD_FLOW) && + (termios->c_cflag & CRTSCTS)) { + /* There is no CTS interrupt to restart the hardware */ + port->status |= UPSTAT_AUTOCTS; + /* MCE is enabled when RTS is raised */ + s->autorts = true; } /* @@ -2300,6 +2412,9 @@ done: sci_start_rx(port); sci_port_disable(s); + + if (UART_ENABLE_MS(port, termios->c_cflag)) + sci_enable_ms(port); } static void sci_pm(struct uart_port *port, unsigned int state, @@ -2425,6 +2540,7 @@ static struct uart_ops sci_uart_ops = { .start_tx = sci_start_tx, .stop_tx = sci_stop_tx, .stop_rx = sci_stop_rx, + .enable_ms = sci_enable_ms, .break_ctl = sci_break_ctl, .startup = sci_startup, .shutdown = sci_shutdown, @@ -2890,6 +3006,9 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id) p->regtype = SCI_OF_REGTYPE(match->data); p->scscr = SCSCR_RE | SCSCR_TE; + if (of_find_property(np, "uart-has-rtscts", NULL)) + p->capabilities |= SCIx_HAVE_RTSCTS; + return p; } @@ -2912,6 +3031,21 @@ static int sci_probe_single(struct platform_device *dev, if (ret) return ret; + sciport->gpios = mctrl_gpio_init(&sciport->port, 0); + if (IS_ERR(sciport->gpios) && PTR_ERR(sciport->gpios) != -ENOSYS) + return PTR_ERR(sciport->gpios); + + if (p->capabilities & SCIx_HAVE_RTSCTS) { + if (!IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(sciport->gpios, + UART_GPIO_CTS)) || + !IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(sciport->gpios, + UART_GPIO_RTS))) { + dev_err(&dev->dev, "Conflicting RTS/CTS config\n"); + return -EINVAL; + } + sciport->port.flags |= UPF_HARD_FLOW; + } + ret = uart_add_one_port(&sci_uart_driver, &sciport->port); if (ret) { sci_cleanup_single(sciport); diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h index 7a4fa185b93e..ffa6d688c335 100644 --- a/drivers/tty/serial/sh-sci.h +++ b/drivers/tty/serial/sh-sci.h @@ -105,13 +105,16 @@ enum { #define SCFCR_LOOP BIT(0) /* Loopback Test */ /* SCLSR (Line Status Register) on (H)SCIF */ +#define SCLSR_TO BIT(2) /* Timeout */ #define SCLSR_ORER BIT(0) /* Overrun Error */ /* SCSPTR (Serial Port Register), optional */ -#define SCSPTR_RTSIO BIT(7) /* Serial Port RTS Pin Input/Output */ -#define SCSPTR_RTSDT BIT(6) /* Serial Port RTS Pin Data */ -#define SCSPTR_CTSIO BIT(5) /* Serial Port CTS Pin Input/Output */ -#define SCSPTR_CTSDT BIT(4) /* Serial Port CTS Pin Data */ +#define SCSPTR_RTSIO BIT(7) /* Serial Port RTS# Pin Input/Output */ +#define SCSPTR_RTSDT BIT(6) /* Serial Port RTS# Pin Data */ +#define SCSPTR_CTSIO BIT(5) /* Serial Port CTS# Pin Input/Output */ +#define SCSPTR_CTSDT BIT(4) /* Serial Port CTS# Pin Data */ +#define SCSPTR_SCKIO BIT(3) /* Serial Port Clock Pin Input/Output */ +#define SCSPTR_SCKDT BIT(2) /* Serial Port Clock Pin Data */ #define SCSPTR_SPB2IO BIT(1) /* Serial Port Break Input/Output */ #define SCSPTR_SPB2DT BIT(0) /* Serial Port Break Data */ @@ -119,12 +122,18 @@ enum { #define HSCIF_SRE BIT(15) /* Sampling Rate Register Enable */ /* SCPCR (Serial Port Control Register), SCIFA/SCIFB only */ -#define SCPCR_RTSC BIT(4) /* Serial Port RTS Pin / Output Pin */ -#define SCPCR_CTSC BIT(3) /* Serial Port CTS Pin / Input Pin */ +#define SCPCR_RTSC BIT(4) /* Serial Port RTS# Pin / Output Pin */ +#define SCPCR_CTSC BIT(3) /* Serial Port CTS# Pin / Input Pin */ +#define SCPCR_SCKC BIT(2) /* Serial Port SCK Pin / Output Pin */ +#define SCPCR_RXDC BIT(1) /* Serial Port RXD Pin / Input Pin */ +#define SCPCR_TXDC BIT(0) /* Serial Port TXD Pin / Output Pin */ /* SCPDR (Serial Port Data Register), SCIFA/SCIFB only */ -#define SCPDR_RTSD BIT(4) /* Serial Port RTS Output Pin Data */ -#define SCPDR_CTSD BIT(3) /* Serial Port CTS Input Pin Data */ +#define SCPDR_RTSD BIT(4) /* Serial Port RTS# Output Pin Data */ +#define SCPDR_CTSD BIT(3) /* Serial Port CTS# Input Pin Data */ +#define SCPDR_SCKD BIT(2) /* Serial Port SCK Output Pin Data */ +#define SCPDR_RXDD BIT(1) /* Serial Port RXD Input Pin Data */ +#define SCPDR_TXDD BIT(0) /* Serial Port TXD Output Pin Data */ /* * BRG Clock Select Register (Some SCIF and HSCIF) diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h index c3a885b4d76a..43756bd9111c 100644 --- a/drivers/tty/serial/sirfsoc_uart.h +++ b/drivers/tty/serial/sirfsoc_uart.h @@ -106,7 +106,7 @@ struct sirfsoc_uart_register { enum sirfsoc_uart_type uart_type; }; -u32 uart_usp_ff_full_mask(struct uart_port *port) +static u32 uart_usp_ff_full_mask(struct uart_port *port) { u32 full_bit; @@ -114,7 +114,7 @@ u32 uart_usp_ff_full_mask(struct uart_port *port) return (1 << full_bit); } -u32 uart_usp_ff_empty_mask(struct uart_port *port) +static u32 uart_usp_ff_empty_mask(struct uart_port *port) { u32 empty_bit; diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index b384060e3b1f..23cfc5e16b45 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -21,7 +21,6 @@ #include <linux/hrtimer.h> #include <linux/delay.h> -#include <linux/module.h> #include <linux/io.h> #include <linux/ioport.h> #include <linux/irq.h> @@ -730,22 +729,12 @@ static int vt8500_serial_probe(struct platform_device *pdev) return 0; } -static int vt8500_serial_remove(struct platform_device *pdev) -{ - struct vt8500_port *vt8500_port = platform_get_drvdata(pdev); - - clk_disable_unprepare(vt8500_port->clk); - uart_remove_one_port(&vt8500_uart_driver, &vt8500_port->uart); - - return 0; -} - static struct platform_driver vt8500_platform_driver = { .probe = vt8500_serial_probe, - .remove = vt8500_serial_remove, .driver = { .name = "vt8500_serial", .of_match_table = wmt_dt_ids, + .suppress_bind_attrs = true, }, }; @@ -764,19 +753,4 @@ static int __init vt8500_serial_init(void) return ret; } - -static void __exit vt8500_serial_exit(void) -{ -#ifdef CONFIG_SERIAL_VT8500_CONSOLE - unregister_console(&vt8500_console); -#endif - platform_driver_unregister(&vt8500_platform_driver); - uart_unregister_driver(&vt8500_uart_driver); -} - -module_init(vt8500_serial_init); -module_exit(vt8500_serial_exit); - -MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>"); -MODULE_DESCRIPTION("Driver for vt8500 serial device"); -MODULE_LICENSE("GPL v2"); +device_initcall(vt8500_serial_init); diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index cd46e64c4255..9ca1a4d1b66a 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -976,6 +976,23 @@ static void cdns_uart_poll_put_char(struct uart_port *port, unsigned char c) } #endif +static void cdns_uart_pm(struct uart_port *port, unsigned int state, + unsigned int oldstate) +{ + struct cdns_uart *cdns_uart = port->private_data; + + switch (state) { + case UART_PM_STATE_OFF: + clk_disable(cdns_uart->uartclk); + clk_disable(cdns_uart->pclk); + break; + default: + clk_enable(cdns_uart->pclk); + clk_enable(cdns_uart->uartclk); + break; + } +} + static struct uart_ops cdns_uart_ops = { .set_mctrl = cdns_uart_set_mctrl, .get_mctrl = cdns_uart_get_mctrl, @@ -987,6 +1004,7 @@ static struct uart_ops cdns_uart_ops = { .set_termios = cdns_uart_set_termios, .startup = cdns_uart_startup, .shutdown = cdns_uart_shutdown, + .pm = cdns_uart_pm, .type = cdns_uart_type, .verify_port = cdns_uart_verify_port, .request_port = cdns_uart_request_port, @@ -1350,12 +1368,12 @@ static int cdns_uart_probe(struct platform_device *pdev) return PTR_ERR(cdns_uart_data->uartclk); } - rc = clk_prepare_enable(cdns_uart_data->pclk); + rc = clk_prepare(cdns_uart_data->pclk); if (rc) { dev_err(&pdev->dev, "Unable to enable pclk clock.\n"); return rc; } - rc = clk_prepare_enable(cdns_uart_data->uartclk); + rc = clk_prepare(cdns_uart_data->uartclk); if (rc) { dev_err(&pdev->dev, "Unable to enable device clock.\n"); goto err_out_clk_dis_pclk; @@ -1422,9 +1440,9 @@ err_out_notif_unreg: &cdns_uart_data->clk_rate_change_nb); #endif err_out_clk_disable: - clk_disable_unprepare(cdns_uart_data->uartclk); + clk_unprepare(cdns_uart_data->uartclk); err_out_clk_dis_pclk: - clk_disable_unprepare(cdns_uart_data->pclk); + clk_unprepare(cdns_uart_data->pclk); return rc; } @@ -1448,8 +1466,8 @@ static int cdns_uart_remove(struct platform_device *pdev) #endif rc = uart_remove_one_port(&cdns_uart_uart_driver, port); port->mapbase = 0; - clk_disable_unprepare(cdns_uart_data->uartclk); - clk_disable_unprepare(cdns_uart_data->pclk); + clk_unprepare(cdns_uart_data->uartclk); + clk_unprepare(cdns_uart_data->pclk); return rc; } diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c index c8c91f0476a2..9d7ab7b66a8a 100644 --- a/drivers/tty/vt/consolemap.c +++ b/drivers/tty/vt/consolemap.c @@ -499,9 +499,8 @@ con_insert_unipair(struct uni_pagedir *p, u_short unicode, u_short fontpos) return 0; } -/* ui is a leftover from using a hashtable, but might be used again - Caller must hold the lock */ -static int con_do_clear_unimap(struct vc_data *vc, struct unimapinit *ui) +/* Caller must hold the lock */ +static int con_do_clear_unimap(struct vc_data *vc) { struct uni_pagedir *p, *q; @@ -524,11 +523,11 @@ static int con_do_clear_unimap(struct vc_data *vc, struct unimapinit *ui) return 0; } -int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) +int con_clear_unimap(struct vc_data *vc) { int ret; console_lock(); - ret = con_do_clear_unimap(vc, ui); + ret = con_do_clear_unimap(vc); console_unlock(); return ret; } @@ -556,7 +555,7 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) int j, k; u16 **p1, *p2, l; - err1 = con_do_clear_unimap(vc, NULL); + err1 = con_do_clear_unimap(vc); if (err1) { console_unlock(); return err1; @@ -677,7 +676,7 @@ int con_set_default_unimap(struct vc_data *vc) /* The default font is always 256 characters */ - err = con_do_clear_unimap(vc, NULL); + err = con_do_clear_unimap(vc); if (err) return err; diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 1e93a37e27f0..0f8caae4267d 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -567,7 +567,7 @@ static void fn_scroll_forw(struct vc_data *vc) static void fn_scroll_back(struct vc_data *vc) { - scrollback(vc, 0); + scrollback(vc); } static void fn_show_mem(struct vc_data *vc) @@ -1733,16 +1733,10 @@ int vt_do_diacrit(unsigned int cmd, void __user *udp, int perm) return -EINVAL; if (ct) { - buf = kmalloc(ct * sizeof(struct kbdiacruc), - GFP_KERNEL); - if (buf == NULL) - return -ENOMEM; - - if (copy_from_user(buf, a->kbdiacruc, - ct * sizeof(struct kbdiacruc))) { - kfree(buf); - return -EFAULT; - } + buf = memdup_user(a->kbdiacruc, + ct * sizeof(struct kbdiacruc)); + if (IS_ERR(buf)) + return PTR_ERR(buf); } spin_lock_irqsave(&kbd_event_lock, flags); if (ct) diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 5b0fe97c46ca..2705ca960e92 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -277,13 +277,15 @@ static void notify_update(struct vc_data *vc) * Low-Level Functions */ -#define IS_FG(vc) ((vc)->vc_num == fg_console) +static inline bool con_is_fg(const struct vc_data *vc) +{ + return vc->vc_num == fg_console; +} -#ifdef VT_BUF_VRAM_ONLY -#define DO_UPDATE(vc) 0 -#else -#define DO_UPDATE(vc) (CON_IS_VISIBLE(vc) && !console_blanked) -#endif +static inline bool con_should_update(const struct vc_data *vc) +{ + return con_is_visible(vc) && !console_blanked; +} static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed) { @@ -321,7 +323,7 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr) nr = b - t - 1; if (b > vc->vc_rows || t >= b || nr < 1) return; - if (CON_IS_VISIBLE(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_UP, nr)) + if (con_is_visible(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_UP, nr)) return; d = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t); s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * (t + nr)); @@ -339,7 +341,7 @@ static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr) nr = b - t - 1; if (b > vc->vc_rows || t >= b || nr < 1) return; - if (CON_IS_VISIBLE(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_DOWN, nr)) + if (con_is_visible(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_DOWN, nr)) return; s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t); step = vc->vc_cols * nr; @@ -349,7 +351,6 @@ static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr) static void do_update_region(struct vc_data *vc, unsigned long start, int count) { -#ifndef VT_BUF_VRAM_ONLY unsigned int xx, yy, offset; u16 *p; @@ -390,14 +391,13 @@ static void do_update_region(struct vc_data *vc, unsigned long start, int count) start = vc->vc_sw->con_getxy(vc, start, NULL, NULL); } } -#endif } void update_region(struct vc_data *vc, unsigned long start, int count) { WARN_CONSOLE_UNLOCKED(); - if (DO_UPDATE(vc)) { + if (con_should_update(vc)) { hide_cursor(vc); do_update_region(vc, start, count); set_cursor(vc); @@ -413,7 +413,6 @@ static u8 build_attr(struct vc_data *vc, u8 _color, u8 _intensity, u8 _blink, return vc->vc_sw->con_build_attr(vc, _color, _intensity, _blink, _underline, _reverse, _italic); -#ifndef VT_BUF_VRAM_ONLY /* * ++roman: I completely changed the attribute format for monochrome * mode (!can_do_color). The formerly used MDA (monochrome display @@ -448,9 +447,6 @@ static u8 build_attr(struct vc_data *vc, u8 _color, u8 _intensity, u8 _blink, a <<= 1; return a; } -#else - return 0; -#endif } static void update_attr(struct vc_data *vc) @@ -470,10 +466,9 @@ void invert_screen(struct vc_data *vc, int offset, int count, int viewed) count /= 2; p = screenpos(vc, offset, viewed); - if (vc->vc_sw->con_invert_region) + if (vc->vc_sw->con_invert_region) { vc->vc_sw->con_invert_region(vc, p, count); -#ifndef VT_BUF_VRAM_ONLY - else { + } else { u16 *q = p; int cnt = count; u16 a; @@ -501,8 +496,8 @@ void invert_screen(struct vc_data *vc, int offset, int count, int viewed) } } } -#endif - if (DO_UPDATE(vc)) + + if (con_should_update(vc)) do_update_region(vc, (unsigned long) p, count); notify_update(vc); } @@ -519,7 +514,7 @@ void complement_pos(struct vc_data *vc, int offset) if (old_offset != -1 && old_offset >= 0 && old_offset < vc->vc_screenbuf_size) { scr_writew(old, screenpos(vc, old_offset, 1)); - if (DO_UPDATE(vc)) + if (con_should_update(vc)) vc->vc_sw->con_putc(vc, old, oldy, oldx); notify_update(vc); } @@ -534,7 +529,7 @@ void complement_pos(struct vc_data *vc, int offset) old = scr_readw(p); new = old ^ vc->vc_complement_mask; scr_writew(new, p); - if (DO_UPDATE(vc)) { + if (con_should_update(vc)) { oldx = (offset >> 1) % vc->vc_cols; oldy = (offset >> 1) / vc->vc_cols; vc->vc_sw->con_putc(vc, new, oldy, oldx); @@ -550,7 +545,7 @@ static void insert_char(struct vc_data *vc, unsigned int nr) scr_memmovew(p + nr, p, (vc->vc_cols - vc->vc_x - nr) * 2); scr_memsetw(p, vc->vc_video_erase_char, nr * 2); vc->vc_need_wrap = 0; - if (DO_UPDATE(vc)) + if (con_should_update(vc)) do_update_region(vc, (unsigned long) p, vc->vc_cols - vc->vc_x); } @@ -563,7 +558,7 @@ static void delete_char(struct vc_data *vc, unsigned int nr) scr_memsetw(p + vc->vc_cols - vc->vc_x - nr, vc->vc_video_erase_char, nr * 2); vc->vc_need_wrap = 0; - if (DO_UPDATE(vc)) + if (con_should_update(vc)) do_update_region(vc, (unsigned long) p, vc->vc_cols - vc->vc_x); } @@ -583,7 +578,7 @@ static void add_softcursor(struct vc_data *vc) if ((type & 0x20) && ((softcursor_original & 0x7000) == (i & 0x7000))) i ^= 0x7000; if ((type & 0x40) && ((i & 0x700) == ((i & 0x7000) >> 4))) i ^= 0x0700; scr_writew(i, (u16 *) vc->vc_pos); - if (DO_UPDATE(vc)) + if (con_should_update(vc)) vc->vc_sw->con_putc(vc, i, vc->vc_y, vc->vc_x); } @@ -591,7 +586,7 @@ static void hide_softcursor(struct vc_data *vc) { if (softcursor_original != -1) { scr_writew(softcursor_original, (u16 *)vc->vc_pos); - if (DO_UPDATE(vc)) + if (con_should_update(vc)) vc->vc_sw->con_putc(vc, softcursor_original, vc->vc_y, vc->vc_x); softcursor_original = -1; @@ -608,8 +603,7 @@ static void hide_cursor(struct vc_data *vc) static void set_cursor(struct vc_data *vc) { - if (!IS_FG(vc) || console_blanked || - vc->vc_mode == KD_GRAPHICS) + if (!con_is_fg(vc) || console_blanked || vc->vc_mode == KD_GRAPHICS) return; if (vc->vc_deccm) { if (vc == sel_cons) @@ -625,7 +619,7 @@ static void set_origin(struct vc_data *vc) { WARN_CONSOLE_UNLOCKED(); - if (!CON_IS_VISIBLE(vc) || + if (!con_is_visible(vc) || !vc->vc_sw->con_set_origin || !vc->vc_sw->con_set_origin(vc)) vc->vc_origin = (unsigned long)vc->vc_screenbuf; @@ -673,12 +667,12 @@ void redraw_screen(struct vc_data *vc, int is_switch) struct vc_data *old_vc = vc_cons[fg_console].d; if (old_vc == vc) return; - if (!CON_IS_VISIBLE(vc)) + if (!con_is_visible(vc)) redraw = 1; *vc->vc_display_fg = vc; fg_console = vc->vc_num; hide_cursor(old_vc); - if (!CON_IS_VISIBLE(old_vc)) { + if (!con_is_visible(old_vc)) { save_screen(old_vc); set_origin(old_vc); } @@ -954,7 +948,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, tty_do_resize(tty, &ws); } - if (CON_IS_VISIBLE(vc)) + if (con_is_visible(vc)) update_screen(vc); vt_event_post(VT_EVENT_RESIZE, vc->vc_num, vc->vc_num); return err; @@ -1103,11 +1097,9 @@ static void gotoxay(struct vc_data *vc, int new_x, int new_y) gotoxy(vc, new_x, vc->vc_decom ? (vc->vc_top + new_y) : new_y); } -void scrollback(struct vc_data *vc, int lines) +void scrollback(struct vc_data *vc) { - if (!lines) - lines = vc->vc_rows / 2; - scrolldelta(-lines); + scrolldelta(-(vc->vc_rows / 2)); } void scrollfront(struct vc_data *vc, int lines) @@ -1186,7 +1178,7 @@ static void csi_J(struct vc_data *vc, int vpar) scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, vc->vc_screenbuf_size >> 1); set_origin(vc); - if (CON_IS_VISIBLE(vc)) + if (con_is_visible(vc)) update_screen(vc); /* fall through */ case 2: /* erase whole display */ @@ -1197,7 +1189,7 @@ static void csi_J(struct vc_data *vc, int vpar) return; } scr_memsetw(start, vc->vc_video_erase_char, 2 * count); - if (DO_UPDATE(vc)) + if (con_should_update(vc)) do_update_region(vc, (unsigned long) start, count); vc->vc_need_wrap = 0; } @@ -1225,7 +1217,7 @@ static void csi_K(struct vc_data *vc, int vpar) } scr_memsetw(start, vc->vc_video_erase_char, 2 * count); vc->vc_need_wrap = 0; - if (DO_UPDATE(vc)) + if (con_should_update(vc)) do_update_region(vc, (unsigned long) start, count); } @@ -1238,7 +1230,7 @@ static void csi_X(struct vc_data *vc, int vpar) /* erase the following vpar posi count = (vpar > vc->vc_cols - vc->vc_x) ? (vc->vc_cols - vc->vc_x) : vpar; scr_memsetw((unsigned short *)vc->vc_pos, vc->vc_video_erase_char, 2 * count); - if (DO_UPDATE(vc)) + if (con_should_update(vc)) vc->vc_sw->con_clear(vc, vc->vc_y, vc->vc_x, 1, count); vc->vc_need_wrap = 0; } @@ -1255,48 +1247,87 @@ static void default_attr(struct vc_data *vc) struct rgb { u8 r; u8 g; u8 b; }; -static struct rgb rgb_from_256(int i) +static void rgb_from_256(int i, struct rgb *c) { - struct rgb c; if (i < 8) { /* Standard colours. */ - c.r = i&1 ? 0xaa : 0x00; - c.g = i&2 ? 0xaa : 0x00; - c.b = i&4 ? 0xaa : 0x00; + c->r = i&1 ? 0xaa : 0x00; + c->g = i&2 ? 0xaa : 0x00; + c->b = i&4 ? 0xaa : 0x00; } else if (i < 16) { - c.r = i&1 ? 0xff : 0x55; - c.g = i&2 ? 0xff : 0x55; - c.b = i&4 ? 0xff : 0x55; + c->r = i&1 ? 0xff : 0x55; + c->g = i&2 ? 0xff : 0x55; + c->b = i&4 ? 0xff : 0x55; } else if (i < 232) { /* 6x6x6 colour cube. */ - c.r = (i - 16) / 36 * 85 / 2; - c.g = (i - 16) / 6 % 6 * 85 / 2; - c.b = (i - 16) % 6 * 85 / 2; + c->r = (i - 16) / 36 * 85 / 2; + c->g = (i - 16) / 6 % 6 * 85 / 2; + c->b = (i - 16) % 6 * 85 / 2; } else /* Grayscale ramp. */ - c.r = c.g = c.b = i * 10 - 2312; - return c; + c->r = c->g = c->b = i * 10 - 2312; } -static void rgb_foreground(struct vc_data *vc, struct rgb c) +static void rgb_foreground(struct vc_data *vc, const struct rgb *c) { - u8 hue, max = c.r; - if (c.g > max) - max = c.g; - if (c.b > max) - max = c.b; - hue = (c.r > max/2 ? 4 : 0) - | (c.g > max/2 ? 2 : 0) - | (c.b > max/2 ? 1 : 0); - if (hue == 7 && max <= 0x55) - hue = 0, vc->vc_intensity = 2; + u8 hue = 0, max = max3(c->r, c->g, c->b); + + if (c->r > max / 2) + hue |= 4; + if (c->g > max / 2) + hue |= 2; + if (c->b > max / 2) + hue |= 1; + + if (hue == 7 && max <= 0x55) { + hue = 0; + vc->vc_intensity = 2; + } else if (max > 0xaa) + vc->vc_intensity = 2; else - vc->vc_intensity = (max > 0xaa) + 1; + vc->vc_intensity = 1; + vc->vc_color = (vc->vc_color & 0xf0) | hue; } -static void rgb_background(struct vc_data *vc, struct rgb c) +static void rgb_background(struct vc_data *vc, const struct rgb *c) { /* For backgrounds, err on the dark side. */ vc->vc_color = (vc->vc_color & 0x0f) - | (c.r&0x80) >> 1 | (c.g&0x80) >> 2 | (c.b&0x80) >> 3; + | (c->r&0x80) >> 1 | (c->g&0x80) >> 2 | (c->b&0x80) >> 3; +} + +/* + * ITU T.416 Higher colour modes. They break the usual properties of SGR codes + * and thus need to be detected and ignored by hand. Strictly speaking, that + * standard also wants : rather than ; as separators, contrary to ECMA-48, but + * no one produces such codes and almost no one accepts them. + * + * Subcommands 3 (CMY) and 4 (CMYK) are so insane there's no point in + * supporting them. + */ +static int vc_t416_color(struct vc_data *vc, int i, + void(*set_color)(struct vc_data *vc, const struct rgb *c)) +{ + struct rgb c; + + i++; + if (i > vc->vc_npar) + return i; + + if (vc->vc_par[i] == 5 && i < vc->vc_npar) { + /* 256 colours -- ubiquitous */ + i++; + rgb_from_256(vc->vc_par[i], &c); + } else if (vc->vc_par[i] == 2 && i <= vc->vc_npar + 3) { + /* 24 bit -- extremely rare */ + c.r = vc->vc_par[i + 1]; + c.g = vc->vc_par[i + 2]; + c.b = vc->vc_par[i + 3]; + i += 3; + } else + return i; + + set_color(vc, &c); + + return i; } /* console_lock is held */ @@ -1306,135 +1337,91 @@ static void csi_m(struct vc_data *vc) for (i = 0; i <= vc->vc_npar; i++) switch (vc->vc_par[i]) { - case 0: /* all attributes off */ - default_attr(vc); - break; - case 1: - vc->vc_intensity = 2; - break; - case 2: - vc->vc_intensity = 0; - break; - case 3: - vc->vc_italic = 1; - break; - case 4: - vc->vc_underline = 1; - break; - case 5: - vc->vc_blink = 1; - break; - case 7: - vc->vc_reverse = 1; - break; - case 10: /* ANSI X3.64-1979 (SCO-ish?) - * Select primary font, don't display - * control chars if defined, don't set - * bit 8 on output. - */ - vc->vc_translate = set_translate(vc->vc_charset == 0 - ? vc->vc_G0_charset - : vc->vc_G1_charset, vc); - vc->vc_disp_ctrl = 0; - vc->vc_toggle_meta = 0; - break; - case 11: /* ANSI X3.64-1979 (SCO-ish?) - * Select first alternate font, lets - * chars < 32 be displayed as ROM chars. - */ - vc->vc_translate = set_translate(IBMPC_MAP, vc); - vc->vc_disp_ctrl = 1; - vc->vc_toggle_meta = 0; - break; - case 12: /* ANSI X3.64-1979 (SCO-ish?) - * Select second alternate font, toggle - * high bit before displaying as ROM char. - */ - vc->vc_translate = set_translate(IBMPC_MAP, vc); - vc->vc_disp_ctrl = 1; - vc->vc_toggle_meta = 1; - break; - case 21: - case 22: - vc->vc_intensity = 1; - break; - case 23: - vc->vc_italic = 0; - break; - case 24: - vc->vc_underline = 0; - break; - case 25: - vc->vc_blink = 0; - break; - case 27: - vc->vc_reverse = 0; - break; - case 38: /* ITU T.416 - * Higher colour modes. - * They break the usual properties of SGR codes - * and thus need to be detected and ignored by - * hand. Strictly speaking, that standard also - * wants : rather than ; as separators, contrary - * to ECMA-48, but no one produces such codes - * and almost no one accepts them. - */ - i++; - if (i > vc->vc_npar) - break; - if (vc->vc_par[i] == 5 && /* 256 colours */ - i < vc->vc_npar) { /* ubiquitous */ - i++; - rgb_foreground(vc, - rgb_from_256(vc->vc_par[i])); - } else if (vc->vc_par[i] == 2 && /* 24 bit */ - i <= vc->vc_npar + 3) {/* extremely rare */ - struct rgb c = { - .r = vc->vc_par[i + 1], - .g = vc->vc_par[i + 2], - .b = vc->vc_par[i + 3], - }; - rgb_foreground(vc, c); - i += 3; - } - /* Subcommands 3 (CMY) and 4 (CMYK) are so insane - * there's no point in supporting them. - */ - break; - case 48: - i++; - if (i > vc->vc_npar) - break; - if (vc->vc_par[i] == 5 && /* 256 colours */ - i < vc->vc_npar) { - i++; - rgb_background(vc, - rgb_from_256(vc->vc_par[i])); - } else if (vc->vc_par[i] == 2 && /* 24 bit */ - i <= vc->vc_npar + 3) { - struct rgb c = { - .r = vc->vc_par[i + 1], - .g = vc->vc_par[i + 2], - .b = vc->vc_par[i + 3], - }; - rgb_background(vc, c); - i += 3; - } - break; - case 39: - vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0); - break; - case 49: - vc->vc_color = (vc->vc_def_color & 0xf0) | (vc->vc_color & 0x0f); - break; - default: - if (vc->vc_par[i] >= 30 && vc->vc_par[i] <= 37) - vc->vc_color = color_table[vc->vc_par[i] - 30] - | (vc->vc_color & 0xf0); - else if (vc->vc_par[i] >= 40 && vc->vc_par[i] <= 47) - vc->vc_color = (color_table[vc->vc_par[i] - 40] << 4) - | (vc->vc_color & 0x0f); - break; + case 0: /* all attributes off */ + default_attr(vc); + break; + case 1: + vc->vc_intensity = 2; + break; + case 2: + vc->vc_intensity = 0; + break; + case 3: + vc->vc_italic = 1; + break; + case 4: + vc->vc_underline = 1; + break; + case 5: + vc->vc_blink = 1; + break; + case 7: + vc->vc_reverse = 1; + break; + case 10: /* ANSI X3.64-1979 (SCO-ish?) + * Select primary font, don't display control chars if + * defined, don't set bit 8 on output. + */ + vc->vc_translate = set_translate(vc->vc_charset == 0 + ? vc->vc_G0_charset + : vc->vc_G1_charset, vc); + vc->vc_disp_ctrl = 0; + vc->vc_toggle_meta = 0; + break; + case 11: /* ANSI X3.64-1979 (SCO-ish?) + * Select first alternate font, lets chars < 32 be + * displayed as ROM chars. + */ + vc->vc_translate = set_translate(IBMPC_MAP, vc); + vc->vc_disp_ctrl = 1; + vc->vc_toggle_meta = 0; + break; + case 12: /* ANSI X3.64-1979 (SCO-ish?) + * Select second alternate font, toggle high bit + * before displaying as ROM char. + */ + vc->vc_translate = set_translate(IBMPC_MAP, vc); + vc->vc_disp_ctrl = 1; + vc->vc_toggle_meta = 1; + break; + case 21: + case 22: + vc->vc_intensity = 1; + break; + case 23: + vc->vc_italic = 0; + break; + case 24: + vc->vc_underline = 0; + break; + case 25: + vc->vc_blink = 0; + break; + case 27: + vc->vc_reverse = 0; + break; + case 38: + i = vc_t416_color(vc, i, rgb_foreground); + break; + case 48: + i = vc_t416_color(vc, i, rgb_background); + break; + case 39: + vc->vc_color = (vc->vc_def_color & 0x0f) | + (vc->vc_color & 0xf0); + break; + case 49: + vc->vc_color = (vc->vc_def_color & 0xf0) | + (vc->vc_color & 0x0f); + break; + default: + if (vc->vc_par[i] >= 30 && vc->vc_par[i] <= 37) + vc->vc_color = color_table[vc->vc_par[i] - 30] + | (vc->vc_color & 0xf0); + else if (vc->vc_par[i] >= 40 && vc->vc_par[i] <= 47) + vc->vc_color = (color_table[vc->vc_par[i] - 40] << 4) + | (vc->vc_color & 0x0f); + break; } update_attr(vc); } @@ -1496,7 +1483,6 @@ static void set_mode(struct vc_data *vc, int on_off) clr_kbd(vc, decckm); break; case 3: /* 80/132 mode switch unimplemented */ - vc->vc_deccolm = on_off; #if 0 vc_resize(deccolm ? 132 : 80, vc->vc_rows); /* this alone does not suffice; some user mode @@ -2178,18 +2164,20 @@ static int is_double_width(uint32_t ucs) return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1); } +static void con_flush(struct vc_data *vc, unsigned long draw_from, + unsigned long draw_to, int *draw_x) +{ + if (*draw_x < 0) + return; + + vc->vc_sw->con_putcs(vc, (u16 *)draw_from, + (u16 *)draw_to - (u16 *)draw_from, vc->vc_y, *draw_x); + *draw_x = -1; +} + /* acquires console_lock */ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count) { -#ifdef VT_BUF_VRAM_ONLY -#define FLUSH do { } while(0); -#else -#define FLUSH if (draw_x >= 0) { \ - vc->vc_sw->con_putcs(vc, (u16 *)draw_from, (u16 *)draw_to - (u16 *)draw_from, vc->vc_y, draw_x); \ - draw_x = -1; \ - } -#endif - int c, tc, ok, n = 0, draw_x = -1; unsigned int currcons; unsigned long draw_from = 0, draw_to = 0; @@ -2226,7 +2214,7 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co charmask = himask ? 0x1ff : 0xff; /* undraw cursor first */ - if (IS_FG(vc)) + if (con_is_fg(vc)) hide_cursor(vc); param.vc = vc; @@ -2381,12 +2369,13 @@ rescan_last_byte: } else { vc_attr = ((vc->vc_attr) & 0x88) | (((vc->vc_attr) & 0x70) >> 4) | (((vc->vc_attr) & 0x07) << 4); } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); } while (1) { if (vc->vc_need_wrap || vc->vc_decim) - FLUSH + con_flush(vc, draw_from, draw_to, + &draw_x); if (vc->vc_need_wrap) { cr(vc); lf(vc); @@ -2397,7 +2386,7 @@ rescan_last_byte: ((vc_attr << 8) & ~himask) + ((tc & 0x100) ? himask : 0) + (tc & 0xff) : (vc_attr << 8) + tc, (u16 *) vc->vc_pos); - if (DO_UPDATE(vc) && draw_x < 0) { + if (con_should_update(vc) && draw_x < 0) { draw_x = vc->vc_x; draw_from = vc->vc_pos; } @@ -2416,9 +2405,8 @@ rescan_last_byte: } notify_write(vc, c); - if (inverse) { - FLUSH - } + if (inverse) + con_flush(vc, draw_from, draw_to, &draw_x); if (rescan) { rescan = 0; @@ -2429,15 +2417,14 @@ rescan_last_byte: } continue; } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); do_con_trol(tty, vc, orig); } - FLUSH + con_flush(vc, draw_from, draw_to, &draw_x); console_conditional_schedule(); console_unlock(); notify_update(vc); return n; -#undef FLUSH } /* @@ -2471,7 +2458,7 @@ static void console_callback(struct work_struct *ignored) if (scrollback_delta) { struct vc_data *vc = vc_cons[fg_console].d; clear_selection(); - if (vc->vc_mode == KD_TEXT) + if (vc->vc_mode == KD_TEXT && vc->vc_sw->con_scrolldelta) vc->vc_sw->con_scrolldelta(vc, scrollback_delta); scrollback_delta = 0; } @@ -2583,7 +2570,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) goto quit; /* undraw cursor first */ - if (IS_FG(vc)) + if (con_is_fg(vc)) hide_cursor(vc); start = (ushort *)vc->vc_pos; @@ -2594,7 +2581,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) c = *b++; if (c == 10 || c == 13 || c == 8 || vc->vc_need_wrap) { if (cnt > 0) { - if (CON_IS_VISIBLE(vc)) + if (con_is_visible(vc)) vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x); vc->vc_x += cnt; if (vc->vc_need_wrap) @@ -2626,7 +2613,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) myx++; } if (cnt > 0) { - if (CON_IS_VISIBLE(vc)) + if (con_is_visible(vc)) vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x); vc->vc_x += cnt; if (vc->vc_x == vc->vc_cols) { @@ -3173,7 +3160,7 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last, j = i; - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { k = i; save_screen(vc); } @@ -3981,7 +3968,7 @@ static void set_palette(struct vc_data *vc) { WARN_CONSOLE_UNLOCKED(); - if (vc->vc_mode != KD_GRAPHICS) + if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_set_palette) vc->vc_sw->con_set_palette(vc, color_table); } diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index 97d5a74558a3..f62c598810ff 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -1006,16 +1006,10 @@ int vt_ioctl(struct tty_struct *tty, break; case PIO_UNIMAPCLR: - { struct unimapinit ui; if (!perm) return -EPERM; - ret = copy_from_user(&ui, up, sizeof(struct unimapinit)); - if (ret) - ret = -EFAULT; - else - con_clear_unimap(vc, &ui); + con_clear_unimap(vc); break; - } case PIO_UNIMAP: case GIO_UNIMAP: diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 15666ad7c772..02abfcdfbf7b 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -1285,18 +1285,22 @@ int sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 *data) } int sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src, - u32 dest, int length, size_t *bytes_written) + u32 dest, int length) { + size_t dummy; + return sisusb_write_mem_bulk(sisusb, dest, src, length, - NULL, 0, bytes_written); + NULL, 0, &dummy); } #ifdef SISUSBENDIANTEST -int sisusb_read_memory(struct sisusb_usb_data *sisusb, char *dest, - u32 src, int length, size_t *bytes_written) +static int sisusb_read_memory(struct sisusb_usb_data *sisusb, char *dest, + u32 src, int length) { + size_t dummy; + return sisusb_read_mem_bulk(sisusb, src, dest, length, - NULL, bytes_written); + NULL, &dummy); } #endif #endif @@ -1306,16 +1310,14 @@ static void sisusb_testreadwrite(struct sisusb_usb_data *sisusb) { static char srcbuffer[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 }; char destbuffer[10]; - size_t dummy; int i, j; - sisusb_copy_memory(sisusb, srcbuffer, sisusb->vrambase, 7, &dummy); + sisusb_copy_memory(sisusb, srcbuffer, sisusb->vrambase, 7); for (i = 1; i <= 7; i++) { dev_dbg(&sisusb->sisusb_dev->dev, "sisusb: rwtest %d bytes\n", i); - sisusb_read_memory(sisusb, destbuffer, sisusb->vrambase, - i, &dummy); + sisusb_read_memory(sisusb, destbuffer, sisusb->vrambase, i); for (j = 0; j < i; j++) { dev_dbg(&sisusb->sisusb_dev->dev, "rwtest read[%d] = %x\n", @@ -2276,7 +2278,6 @@ int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init) const struct font_desc *myfont; u8 *tempbuf; u16 *tempbufb; - size_t written; static const char bootstring[] = "SiSUSB VGA text console, (C) 2005 Thomas Winischhofer."; static const char bootlogo[] = "(o_ //\\ V_/_"; @@ -2343,18 +2344,15 @@ int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init) *(tempbufb++) = 0x0700 | bootstring[i++]; ret |= sisusb_copy_memory(sisusb, tempbuf, - sisusb->vrambase, 8192, &written); + sisusb->vrambase, 8192); vfree(tempbuf); } } else if (sisusb->scrbuf) { - ret |= sisusb_copy_memory(sisusb, (char *)sisusb->scrbuf, - sisusb->vrambase, sisusb->scrbuf_size, - &written); - + sisusb->vrambase, sisusb->scrbuf_size); } if (sisusb->sisusb_cursor_size_from >= 0 && diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c index afa853209f1d..460cebf322e3 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_con.c +++ b/drivers/usb/misc/sisusbvga/sisusb_con.c @@ -370,7 +370,6 @@ static void sisusbcon_putc(struct vc_data *c, int ch, int y, int x) { struct sisusb_usb_data *sisusb; - ssize_t written; sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num); if (!sisusb) @@ -384,7 +383,7 @@ sisusbcon_putc(struct vc_data *c, int ch, int y, int x) sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(x, y), - (long)SISUSB_HADDR(x, y), 2, &written); + (long)SISUSB_HADDR(x, y), 2); mutex_unlock(&sisusb->lock); } @@ -395,7 +394,6 @@ sisusbcon_putcs(struct vc_data *c, const unsigned short *s, int count, int y, int x) { struct sisusb_usb_data *sisusb; - ssize_t written; u16 *dest; int i; @@ -420,7 +418,7 @@ sisusbcon_putcs(struct vc_data *c, const unsigned short *s, } sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(x, y), - (long)SISUSB_HADDR(x, y), count * 2, &written); + (long)SISUSB_HADDR(x, y), count * 2); mutex_unlock(&sisusb->lock); } @@ -431,7 +429,6 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width) { struct sisusb_usb_data *sisusb; u16 eattr = c->vc_video_erase_char; - ssize_t written; int i, length, cols; u16 *dest; @@ -475,41 +472,7 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width) sisusb_copy_memory(sisusb, (unsigned char *)SISUSB_VADDR(x, y), - (long)SISUSB_HADDR(x, y), length, &written); - - mutex_unlock(&sisusb->lock); -} - -/* Interface routine */ -static void -sisusbcon_bmove(struct vc_data *c, int sy, int sx, - int dy, int dx, int height, int width) -{ - struct sisusb_usb_data *sisusb; - ssize_t written; - int cols, length; - - if (width <= 0 || height <= 0) - return; - - sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num); - if (!sisusb) - return; - - /* sisusb->lock is down */ - - cols = sisusb->sisusb_num_columns; - - if (sisusb_is_inactive(c, sisusb)) { - mutex_unlock(&sisusb->lock); - return; - } - - length = ((height * cols) - dx - (cols - width - dx)) * 2; - - - sisusb_copy_memory(sisusb, (unsigned char *)SISUSB_VADDR(dx, dy), - (long)SISUSB_HADDR(dx, dy), length, &written); + (long)SISUSB_HADDR(x, y), length); mutex_unlock(&sisusb->lock); } @@ -519,7 +482,6 @@ static int sisusbcon_switch(struct vc_data *c) { struct sisusb_usb_data *sisusb; - ssize_t written; int length; /* Returnvalue 0 means we have fully restored screen, @@ -559,7 +521,7 @@ sisusbcon_switch(struct vc_data *c) sisusb_copy_memory(sisusb, (unsigned char *)c->vc_origin, (long)SISUSB_HADDR(0, 0), - length, &written); + length); mutex_unlock(&sisusb->lock); @@ -600,7 +562,7 @@ sisusbcon_save_screen(struct vc_data *c) } /* interface routine */ -static int +static void sisusbcon_set_palette(struct vc_data *c, const unsigned char *table) { struct sisusb_usb_data *sisusb; @@ -608,18 +570,18 @@ sisusbcon_set_palette(struct vc_data *c, const unsigned char *table) /* Return value not used by vt */ - if (!CON_IS_VISIBLE(c)) - return -EINVAL; + if (!con_is_visible(c)) + return; sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num); if (!sisusb) - return -EINVAL; + return; /* sisusb->lock is down */ if (sisusb_is_inactive(c, sisusb)) { mutex_unlock(&sisusb->lock); - return -EINVAL; + return; } for (i = j = 0; i < 16; i++) { @@ -634,8 +596,6 @@ sisusbcon_set_palette(struct vc_data *c, const unsigned char *table) } mutex_unlock(&sisusb->lock); - - return 0; } /* interface routine */ @@ -644,7 +604,6 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch) { struct sisusb_usb_data *sisusb; u8 sr1, cr17, pmreg, cr63; - ssize_t written; int ret = 0; sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num); @@ -672,7 +631,7 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch) (unsigned char *)c->vc_origin, (u32)(sisusb->vrambase + (c->vc_origin - sisusb->scrbuf)), - c->vc_screenbuf_size, &written); + c->vc_screenbuf_size); sisusb->con_blanked = 1; ret = 1; break; @@ -723,24 +682,22 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch) } /* interface routine */ -static int +static void sisusbcon_scrolldelta(struct vc_data *c, int lines) { struct sisusb_usb_data *sisusb; int margin = c->vc_size_row * 4; int ul, we, p, st; - /* The return value does not seem to be used */ - sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num); if (!sisusb) - return 0; + return; /* sisusb->lock is down */ if (sisusb_is_inactive(c, sisusb)) { mutex_unlock(&sisusb->lock); - return 0; + return; } if (!lines) /* Turn scrollback off */ @@ -780,8 +737,6 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines) sisusbcon_set_start_address(sisusb, c); mutex_unlock(&sisusb->lock); - - return 1; } /* Interface routine */ @@ -860,7 +815,6 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb, int cols = sisusb->sisusb_num_columns; int length = ((b - t) * cols) * 2; u16 eattr = c->vc_video_erase_char; - ssize_t written; /* sisusb->lock is down */ @@ -890,7 +844,7 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb, } sisusb_copy_memory(sisusb, (char *)SISUSB_VADDR(0, t), - (long)SISUSB_HADDR(0, t), length, &written); + (long)SISUSB_HADDR(0, t), length); mutex_unlock(&sisusb->lock); @@ -903,7 +857,6 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines) { struct sisusb_usb_data *sisusb; u16 eattr = c->vc_video_erase_char; - ssize_t written; int copyall = 0; unsigned long oldorigin; unsigned int delta = lines * c->vc_size_row; @@ -996,18 +949,18 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines) sisusb_copy_memory(sisusb, (char *)c->vc_origin, (u32)(sisusb->vrambase + originoffset), - c->vc_screenbuf_size, &written); + c->vc_screenbuf_size); else if (dir == SM_UP) sisusb_copy_memory(sisusb, (char *)c->vc_origin + c->vc_screenbuf_size - delta, (u32)sisusb->vrambase + originoffset + c->vc_screenbuf_size - delta, - delta, &written); + delta); else sisusb_copy_memory(sisusb, (char *)c->vc_origin, (u32)(sisusb->vrambase + originoffset), - delta, &written); + delta); c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size; c->vc_visible_origin = c->vc_origin; @@ -1273,7 +1226,7 @@ sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot, struct vc_data *vc = vc_cons[i].d; if (vc && vc->vc_sw == &sisusb_con) { - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { vc->vc_sw->con_cursor(vc, CM_DRAW); } vc->vc_font.height = fh; @@ -1385,7 +1338,6 @@ static const struct consw sisusb_con = { .con_putcs = sisusbcon_putcs, .con_cursor = sisusbcon_cursor, .con_scroll = sisusbcon_scroll, - .con_bmove = sisusbcon_bmove, .con_switch = sisusbcon_switch, .con_blank = sisusbcon_blank, .con_font_set = sisusbcon_font_set, @@ -1433,15 +1385,12 @@ static const struct consw sisusb_dummy_con = { .con_putcs = SISUSBCONDUMMY, .con_cursor = SISUSBCONDUMMY, .con_scroll = SISUSBCONDUMMY, - .con_bmove = SISUSBCONDUMMY, .con_switch = SISUSBCONDUMMY, .con_blank = SISUSBCONDUMMY, .con_font_set = SISUSBCONDUMMY, .con_font_get = SISUSBCONDUMMY, .con_font_default = SISUSBCONDUMMY, .con_font_copy = SISUSBCONDUMMY, - .con_set_palette = SISUSBCONDUMMY, - .con_scrolldelta = SISUSBCONDUMMY, }; int diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h index c46ce42d4489..e79a616f0d26 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_init.h +++ b/drivers/usb/misc/sisusbvga/sisusb_init.h @@ -828,7 +828,7 @@ void sisusb_delete(struct kref *kref); int sisusb_writeb(struct sisusb_usb_data *sisusb, u32 adr, u8 data); int sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 * data); int sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src, - u32 dest, int length, size_t * bytes_written); + u32 dest, int length); int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init); int sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot, u8 * arg, int cmapsz, int ch512, int dorecalc, diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 0efc52f11ad0..9269d5685239 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -64,14 +64,11 @@ const struct consw dummy_con = { .con_putcs = DUMMY, .con_cursor = DUMMY, .con_scroll = DUMMY, - .con_bmove = DUMMY, .con_switch = DUMMY, .con_blank = DUMMY, .con_font_set = DUMMY, .con_font_get = DUMMY, .con_font_default = DUMMY, .con_font_copy = DUMMY, - .con_set_palette = DUMMY, - .con_scrolldelta = DUMMY, }; EXPORT_SYMBOL_GPL(dummy_con); diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index afd3301ac40c..b87f5cfdaea5 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -170,8 +170,7 @@ static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, int height, int width); static int fbcon_switch(struct vc_data *vc); static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); -static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table); -static int fbcon_scrolldelta(struct vc_data *vc, int lines); +static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table); /* * Internal routines @@ -381,7 +380,7 @@ static void fb_flashcursor(struct work_struct *work) if (ops && ops->currcon != -1) vc = vc_cons[ops->currcon].d; - if (!vc || !CON_IS_VISIBLE(vc) || + if (!vc || !con_is_visible(vc) || registered_fb[con2fb_map[vc->vc_num]] != info || vc->vc_deccm != 1) { console_unlock(); @@ -619,7 +618,7 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, erase, vc->vc_size_row * logo_lines); - if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { + if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) { fbcon_clear_margins(vc, 0); update_screen(vc); } @@ -1113,7 +1112,7 @@ static void fbcon_init(struct vc_data *vc, int init) * * We need to do it in fbcon_init() to prevent screen corruption. */ - if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { + if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) { if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) { ret = info->fbops->fb_set_par(info); @@ -1193,7 +1192,7 @@ static void fbcon_deinit(struct vc_data *vc) if (!ops) goto finished; - if (CON_IS_VISIBLE(vc)) + if (con_is_visible(vc)) fbcon_del_cursor_timer(info); ops->flags &= ~FBCON_FLAGS_INIT; @@ -1398,7 +1397,7 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, rows /= vc->vc_font.height; vc_resize(vc, cols, rows); - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { update_screen(vc); if (softback_buf) fbcon_update_softback(vc); @@ -2146,7 +2145,7 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width, return -EINVAL; DPRINTK("resize now %ix%i\n", var.xres, var.yres); - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; fb_set_var(info, &var); @@ -2449,7 +2448,7 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int cnt; char *old_data = NULL; - if (CON_IS_VISIBLE(vc) && softback_lines) + if (con_is_visible(vc) && softback_lines) fbcon_set_origin(vc); resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); @@ -2530,9 +2529,9 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, cols /= w; rows /= h; vc_resize(vc, cols, rows); - if (CON_IS_VISIBLE(vc) && softback_buf) + if (con_is_visible(vc) && softback_buf) fbcon_update_softback(vc); - } else if (CON_IS_VISIBLE(vc) + } else if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) { fbcon_clear_margins(vc, 0); update_screen(vc); @@ -2652,17 +2651,17 @@ static struct fb_cmap palette_cmap = { 0, 16, palette_red, palette_green, palette_blue, NULL }; -static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table) +static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table) { struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; int i, j, k, depth; u8 val; if (fbcon_is_inactive(vc, info)) - return -EINVAL; + return; - if (!CON_IS_VISIBLE(vc)) - return 0; + if (!con_is_visible(vc)) + return; depth = fb_get_color_depth(&info->var, &info->fix); if (depth > 3) { @@ -2684,7 +2683,7 @@ static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table) } else fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); - return fb_set_cmap(&palette_cmap, info); + fb_set_cmap(&palette_cmap, info); } static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) @@ -2765,7 +2764,7 @@ static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) } } -static int fbcon_scrolldelta(struct vc_data *vc, int lines) +static void fbcon_scrolldelta(struct vc_data *vc, int lines) { struct fb_info *info = registered_fb[con2fb_map[fg_console]]; struct fbcon_ops *ops = info->fbcon_par; @@ -2774,9 +2773,9 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) if (softback_top) { if (vc->vc_num != fg_console) - return 0; + return; if (vc->vc_mode != KD_TEXT || !lines) - return 0; + return; if (logo_shown >= 0) { struct vc_data *conp2 = vc_cons[logo_shown].d; @@ -2809,11 +2808,11 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); fbcon_redraw_softback(vc, disp, lines); fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); - return 0; + return; } if (!scrollback_phys_max) - return -ENOSYS; + return; scrollback_old = scrollback_current; scrollback_current -= lines; @@ -2822,10 +2821,10 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) else if (scrollback_current > scrollback_max) scrollback_current = scrollback_max; if (scrollback_current == scrollback_old) - return 0; + return; if (fbcon_is_inactive(vc, info)) - return 0; + return; fbcon_cursor(vc, CM_ERASE); @@ -2852,7 +2851,6 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines) if (!scrollback_current) fbcon_cursor(vc, CM_DRAW); - return 0; } static int fbcon_set_origin(struct vc_data *vc) @@ -2904,7 +2902,7 @@ static void fbcon_modechanged(struct fb_info *info) p = &fb_display[vc->vc_num]; set_blitting_type(vc, info); - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { var_to_display(p, &info->var, info); cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); @@ -2943,7 +2941,7 @@ static void fbcon_set_all_vcs(struct fb_info *info) registered_fb[con2fb_map[i]] != info) continue; - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { fg = i; continue; } @@ -3182,7 +3180,7 @@ static void fbcon_fb_blanked(struct fb_info *info, int blank) registered_fb[con2fb_map[ops->currcon]] != info) return; - if (CON_IS_VISIBLE(vc)) { + if (con_is_visible(vc)) { if (blank) do_blank_screen(0); else @@ -3336,7 +3334,6 @@ static const struct consw fb_con = { .con_putcs = fbcon_putcs, .con_cursor = fbcon_cursor, .con_scroll = fbcon_scroll, - .con_bmove = fbcon_bmove, .con_switch = fbcon_switch, .con_blank = fbcon_blank, .con_font_set = fbcon_set_font, diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c index 8edc062536a8..bacbb044d77c 100644 --- a/drivers/video/console/mdacon.c +++ b/drivers/video/console/mdacon.c @@ -444,48 +444,11 @@ static void mdacon_clear(struct vc_data *c, int y, int x, } } -static void mdacon_bmove(struct vc_data *c, int sy, int sx, - int dy, int dx, int height, int width) -{ - u16 *src, *dest; - - if (width <= 0 || height <= 0) - return; - - if (sx==0 && dx==0 && width==mda_num_columns) { - scr_memmovew(MDA_ADDR(0,dy), MDA_ADDR(0,sy), height*width*2); - - } else if (dy < sy || (dy == sy && dx < sx)) { - src = MDA_ADDR(sx, sy); - dest = MDA_ADDR(dx, dy); - - for (; height > 0; height--) { - scr_memmovew(dest, src, width*2); - src += mda_num_columns; - dest += mda_num_columns; - } - } else { - src = MDA_ADDR(sx, sy+height-1); - dest = MDA_ADDR(dx, dy+height-1); - - for (; height > 0; height--) { - scr_memmovew(dest, src, width*2); - src -= mda_num_columns; - dest -= mda_num_columns; - } - } -} - static int mdacon_switch(struct vc_data *c) { return 1; /* redrawing needed */ } -static int mdacon_set_palette(struct vc_data *c, const unsigned char *table) -{ - return -EINVAL; -} - static int mdacon_blank(struct vc_data *c, int blank, int mode_switch) { if (mda_type == TYPE_MDA) { @@ -505,11 +468,6 @@ static int mdacon_blank(struct vc_data *c, int blank, int mode_switch) } } -static int mdacon_scrolldelta(struct vc_data *c, int lines) -{ - return 0; -} - static void mdacon_cursor(struct vc_data *c, int mode) { if (mode == CM_ERASE) { @@ -574,11 +532,8 @@ static const struct consw mda_con = { .con_putcs = mdacon_putcs, .con_cursor = mdacon_cursor, .con_scroll = mdacon_scroll, - .con_bmove = mdacon_bmove, .con_switch = mdacon_switch, .con_blank = mdacon_blank, - .con_set_palette = mdacon_set_palette, - .con_scrolldelta = mdacon_scrolldelta, .con_build_attr = mdacon_build_attr, .con_invert_region = mdacon_invert_region, }; diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c index 0553dfe684ef..e3b9521e4ec3 100644 --- a/drivers/video/console/newport_con.c +++ b/drivers/video/console/newport_con.c @@ -574,17 +574,6 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig return newport_set_font(vc->vc_num, font); } -static int newport_set_palette(struct vc_data *vc, const unsigned char *table) -{ - return -EINVAL; -} - -static int newport_scrolldelta(struct vc_data *vc, int lines) -{ - /* there is (nearly) no off-screen memory, so we can't scroll back */ - return 0; -} - static int newport_scroll(struct vc_data *vc, int t, int b, int dir, int lines) { @@ -684,34 +673,6 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir, return 1; } -static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy, - int dx, int h, int w) -{ - short xs, ys, xe, ye, xoffs, yoffs; - - xs = sx << 3; - xe = ((sx + w) << 3) - 1; - /* - * as bmove is only used to move stuff around in the same line - * (h == 1), we don't care about wrap arounds caused by topscan != 0 - */ - ys = ((sy << 4) + topscan) & 0x3ff; - ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff; - xoffs = (dx - sx) << 3; - yoffs = (dy - sy) << 4; - if (xoffs > 0) { - /* move to the right, exchange starting points */ - swap(xe, xs); - } - newport_wait(npregs); - npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK | - NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX - | NPORT_DMODE0_STOPY); - npregs->set.xystarti = (xs << 16) | ys; - npregs->set.xyendi = (xe << 16) | ye; - npregs->go.xymove = (xoffs << 16) | yoffs; -} - static int newport_dummy(struct vc_data *c) { return 0; @@ -729,13 +690,10 @@ const struct consw newport_con = { .con_putcs = newport_putcs, .con_cursor = newport_cursor, .con_scroll = newport_scroll, - .con_bmove = newport_bmove, .con_switch = newport_switch, .con_blank = newport_blank, .con_font_set = newport_font_set, .con_font_default = newport_font_default, - .con_set_palette = newport_set_palette, - .con_scrolldelta = newport_scrolldelta, .con_set_origin = DUMMY, .con_save_screen = DUMMY }; diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c index e440c2d9fe7c..3a10ac19598f 100644 --- a/drivers/video/console/sticon.c +++ b/drivers/video/console/sticon.c @@ -79,11 +79,6 @@ static const char *sticon_startup(void) return "STI console"; } -static int sticon_set_palette(struct vc_data *c, const unsigned char *table) -{ - return -EINVAL; -} - static void sticon_putc(struct vc_data *conp, int c, int ypos, int xpos) { int redraw_cursor = 0; @@ -182,22 +177,6 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count) return 0; } -static void sticon_bmove(struct vc_data *conp, int sy, int sx, - int dy, int dx, int height, int width) -{ - if (!width || !height) - return; -#if 0 - if (((sy <= p->cursor_y) && (p->cursor_y < sy+height) && - (sx <= p->cursor_x) && (p->cursor_x < sx+width)) || - ((dy <= p->cursor_y) && (p->cursor_y < dy+height) && - (dx <= p->cursor_x) && (p->cursor_x < dx+width))) - sticon_cursor(p, CM_ERASE /*|CM_SOFTBACK*/); -#endif - - sti_bmove(sticon_sti, sy, sx, dy, dx, height, width); -} - static void sticon_init(struct vc_data *c, int init) { struct sti_struct *sti = sticon_sti; @@ -256,11 +235,6 @@ static int sticon_blank(struct vc_data *c, int blank, int mode_switch) return 1; } -static int sticon_scrolldelta(struct vc_data *conp, int lines) -{ - return 0; -} - static u16 *sticon_screen_pos(struct vc_data *conp, int offset) { int line; @@ -355,11 +329,8 @@ static const struct consw sti_con = { .con_putcs = sticon_putcs, .con_cursor = sticon_cursor, .con_scroll = sticon_scroll, - .con_bmove = sticon_bmove, .con_switch = sticon_switch, .con_blank = sticon_blank, - .con_set_palette = sticon_set_palette, - .con_scrolldelta = sticon_scrolldelta, .con_set_origin = sticon_set_origin, .con_save_screen = sticon_save_screen, .con_build_attr = sticon_build_attr, diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 8bf911002cba..11576611a974 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -80,7 +80,7 @@ static void vgacon_deinit(struct vc_data *c); static void vgacon_cursor(struct vc_data *c, int mode); static int vgacon_switch(struct vc_data *c); static int vgacon_blank(struct vc_data *c, int blank, int mode_switch); -static int vgacon_scrolldelta(struct vc_data *c, int lines); +static void vgacon_scrolldelta(struct vc_data *c, int lines); static int vgacon_set_origin(struct vc_data *c); static void vgacon_save_screen(struct vc_data *c); static int vgacon_scroll(struct vc_data *c, int t, int b, int dir, @@ -248,18 +248,18 @@ static void vgacon_restore_screen(struct vc_data *c) } } -static int vgacon_scrolldelta(struct vc_data *c, int lines) +static void vgacon_scrolldelta(struct vc_data *c, int lines) { int start, end, count, soff; if (!lines) { c->vc_visible_origin = c->vc_origin; vga_set_mem_top(c); - return 1; + return; } if (!vgacon_scrollback) - return 1; + return; if (!vgacon_scrollback_save) { vgacon_cursor(c, CM_ERASE); @@ -320,8 +320,6 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) scr_memcpyw(d, s, diff * c->vc_size_row); } else vgacon_cursor(c, CM_MOVE); - - return 1; } #else #define vgacon_scrollback_startup(...) do { } while (0) @@ -334,7 +332,7 @@ static void vgacon_restore_screen(struct vc_data *c) vgacon_scrolldelta(c, 0); } -static int vgacon_scrolldelta(struct vc_data *c, int lines) +static void vgacon_scrolldelta(struct vc_data *c, int lines) { if (!lines) /* Turn scrollback off */ c->vc_visible_origin = c->vc_origin; @@ -362,7 +360,6 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) c->vc_visible_origin = vga_vram_base + (p + ul) % we; } vga_set_mem_top(c); - return 1; } #endif /* CONFIG_VGACON_SOFT_SCROLLBACK */ @@ -592,7 +589,7 @@ static void vgacon_init(struct vc_data *c, int init) static void vgacon_deinit(struct vc_data *c) { /* When closing the active console, reset video origin */ - if (CON_IS_VISIBLE(c)) { + if (con_is_visible(c)) { c->vc_visible_origin = vga_vram_base; vga_set_mem_top(c); } @@ -859,16 +856,13 @@ static void vga_set_palette(struct vc_data *vc, const unsigned char *table) } } -static int vgacon_set_palette(struct vc_data *vc, const unsigned char *table) +static void vgacon_set_palette(struct vc_data *vc, const unsigned char *table) { #ifdef CAN_LOAD_PALETTE if (vga_video_type != VIDEO_TYPE_VGAC || vga_palette_blanked - || !CON_IS_VISIBLE(vc)) - return -EINVAL; + || !con_is_visible(vc)) + return; vga_set_palette(vc, table); - return 0; -#else - return -EINVAL; #endif } @@ -1254,7 +1248,7 @@ static int vgacon_adjust_height(struct vc_data *vc, unsigned fontheight) struct vc_data *c = vc_cons[i].d; if (c && c->vc_sw == &vga_con) { - if (CON_IS_VISIBLE(c)) { + if (con_is_visible(c)) { /* void size to cause regs to be rewritten */ cursor_size_lastfrom = 0; cursor_size_lastto = 0; @@ -1318,7 +1312,7 @@ static int vgacon_resize(struct vc_data *c, unsigned int width, return success */ return (user) ? 0 : -EINVAL; - if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */ + if (con_is_visible(c) && !vga_is_gfx) /* who knows */ vgacon_doresize(c, width, height); return 0; } @@ -1427,7 +1421,6 @@ const struct consw vga_con = { .con_putcs = DUMMY, .con_cursor = vgacon_cursor, .con_scroll = vgacon_scroll, - .con_bmove = DUMMY, .con_switch = vgacon_switch, .con_blank = vgacon_blank, .con_font_set = vgacon_font_set, diff --git a/include/linux/console.h b/include/linux/console.h index 98c8615dc300..d530c4627e54 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -28,6 +28,13 @@ struct tty_struct; #define VT100ID "\033[?1;2c" #define VT102ID "\033[?6c" +/** + * struct consw - callbacks for consoles + * + * @con_set_palette: sets the palette of the console to @table (optional) + * @con_scrolldelta: the contents of the console should be scrolled by @lines. + * Invoked by user. (optional) + */ struct consw { struct module *owner; const char *(*con_startup)(void); @@ -38,7 +45,6 @@ struct consw { void (*con_putcs)(struct vc_data *, const unsigned short *, int, int, int); void (*con_cursor)(struct vc_data *, int); int (*con_scroll)(struct vc_data *, int, int, int, int); - void (*con_bmove)(struct vc_data *, int, int, int, int, int, int); int (*con_switch)(struct vc_data *); int (*con_blank)(struct vc_data *, int, int); int (*con_font_set)(struct vc_data *, struct console_font *, unsigned); @@ -47,8 +53,9 @@ struct consw { int (*con_font_copy)(struct vc_data *, int); int (*con_resize)(struct vc_data *, unsigned int, unsigned int, unsigned int); - int (*con_set_palette)(struct vc_data *, const unsigned char *); - int (*con_scrolldelta)(struct vc_data *, int); + void (*con_set_palette)(struct vc_data *, + const unsigned char *table); + void (*con_scrolldelta)(struct vc_data *, int lines); int (*con_set_origin)(struct vc_data *); void (*con_save_screen)(struct vc_data *); u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8); diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h index e329ee2667e1..6fd3c908a340 100644 --- a/include/linux/console_struct.h +++ b/include/linux/console_struct.h @@ -21,6 +21,38 @@ struct uni_pagedir; #define NPAR 16 +/* + * Example: vc_data of a console that was scrolled 3 lines down. + * + * Console buffer + * vc_screenbuf ---------> +----------------------+-. + * | initializing W | \ + * | initializing X | | + * | initializing Y | > scroll-back area + * | initializing Z | | + * | | / + * vc_visible_origin ---> ^+----------------------+-: + * (changes by scroll) || Welcome to linux | \ + * || | | + * vc_rows --->< | login: root | | visible on console + * || password: | > (vc_screenbuf_size is + * vc_origin -----------> || | | vc_size_row * vc_rows) + * (start when no scroll) || Last login: 12:28 | / + * v+----------------------+-: + * | Have a lot of fun... | \ + * vc_pos -----------------|--------v | > scroll-front area + * | ~ # cat_ | / + * vc_scr_end -----------> +----------------------+-: + * (vc_origin + | | \ EMPTY, to be filled by + * vc_screenbuf_size) | | / vc_video_erase_char + * +----------------------+-' + * <---- 2 * vc_cols -----> + * <---- vc_size_row -----> + * + * Note that every character in the console buffer is accompanied with an + * attribute in the buffer right after the character. This is not depicted + * in the figure. + */ struct vc_data { struct tty_port port; /* Upper level data */ @@ -74,7 +106,6 @@ struct vc_data { unsigned int vc_decawm : 1; /* Autowrap Mode */ unsigned int vc_deccm : 1; /* Cursor Visible */ unsigned int vc_decim : 1; /* Insert Mode */ - unsigned int vc_deccolm : 1; /* 80/132 Column Mode */ /* attribute flags */ unsigned int vc_intensity : 2; /* 0=half-bright, 1=normal, 2=bold */ unsigned int vc_italic:1; @@ -136,6 +167,9 @@ extern void vc_SAK(struct work_struct *work); #define CUR_DEFAULT CUR_UNDERLINE -#define CON_IS_VISIBLE(conp) (*conp->vc_display_fg == conp) +static inline bool con_is_visible(const struct vc_data *vc) +{ + return *vc->vc_display_fg == vc; +} #endif /* _LINUX_CONSOLE_STRUCT_H */ diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h index 79df69dc629c..aaff68efba5d 100644 --- a/include/linux/dma/hsu.h +++ b/include/linux/dma/hsu.h @@ -39,14 +39,22 @@ struct hsu_dma_chip { #if IS_ENABLED(CONFIG_HSU_DMA) /* Export to the internal users */ -irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr); +int hsu_dma_get_status(struct hsu_dma_chip *chip, unsigned short nr, + u32 *status); +irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, + u32 status); /* Export to the platform drivers */ int hsu_dma_probe(struct hsu_dma_chip *chip); int hsu_dma_remove(struct hsu_dma_chip *chip); #else -static inline irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, - unsigned short nr) +static inline int hsu_dma_get_status(struct hsu_dma_chip *chip, + unsigned short nr, u32 *status) +{ + return 0; +} +static inline irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, + unsigned short nr, u32 status) { return IRQ_NONE; } diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 48ec7651989b..923266cd294a 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -111,6 +111,7 @@ struct uart_8250_port { * if no_console_suspend */ unsigned char probe; + struct mctrl_gpios *gpios; #define UART_PROBE_RSA (1 << 0) /* diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index a3d7c0d4a03e..2f44e2013654 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -352,9 +352,15 @@ struct earlycon_id { extern const struct earlycon_id __earlycon_table[]; extern const struct earlycon_id __earlycon_table_end[]; +#if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE) +#define EARLYCON_USED_OR_UNUSED __used +#else +#define EARLYCON_USED_OR_UNUSED __maybe_unused +#endif + #define OF_EARLYCON_DECLARE(_name, compat, fn) \ static const struct earlycon_id __UNIQUE_ID(__earlycon_##_name) \ - __used __section(__earlycon_table) \ + EARLYCON_USED_OR_UNUSED __section(__earlycon_table) \ = { .name = __stringify(_name), \ .compatible = compat, \ .setup = fn } diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index 8d7634247fb4..6abd24f258bc 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -45,7 +45,7 @@ void poke_blanked_console(void); int con_font_op(struct vc_data *vc, struct console_font_op *op); int con_set_cmap(unsigned char __user *cmap); int con_get_cmap(unsigned char __user *cmap); -void scrollback(struct vc_data *vc, int lines); +void scrollback(struct vc_data *vc); void scrollfront(struct vc_data *vc, int lines); void clear_buffer_attributes(struct vc_data *vc); void update_region(struct vc_data *vc, unsigned long start, int count); @@ -59,14 +59,13 @@ int tioclinux(struct tty_struct *tty, unsigned long arg); #ifdef CONFIG_CONSOLE_TRANSLATIONS /* consolemap.c */ -struct unimapinit; struct unipair; int con_set_trans_old(unsigned char __user * table); int con_get_trans_old(unsigned char __user * table); int con_set_trans_new(unsigned short __user * table); int con_get_trans_new(unsigned short __user * table); -int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui); +int con_clear_unimap(struct vc_data *vc); int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); int con_set_default_unimap(struct vc_data *vc); @@ -92,7 +91,7 @@ static inline int con_get_trans_new(unsigned short __user *table) { return -EINVAL; } -static inline int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) +static inline int con_clear_unimap(struct vc_data *vc) { return 0; } diff --git a/net/irda/ircomm/ircomm_tty_ioctl.c b/net/irda/ircomm/ircomm_tty_ioctl.c index d4fdf8f7b471..8f5678cb6263 100644 --- a/net/irda/ircomm/ircomm_tty_ioctl.c +++ b/net/irda/ircomm/ircomm_tty_ioctl.c @@ -246,9 +246,6 @@ static int ircomm_tty_get_serial_info(struct ircomm_tty_cb *self, { struct serial_struct info; - if (!retinfo) - return -EFAULT; - memset(&info, 0, sizeof(info)); info.line = self->line; info.flags = self->port.flags; @@ -258,11 +255,6 @@ static int ircomm_tty_get_serial_info(struct ircomm_tty_cb *self, /* For compatibility */ info.type = PORT_16550A; - info.port = 0; - info.irq = 0; - info.xmit_fifo_size = 0; - info.hub6 = 0; - info.custom_divisor = 0; if (copy_to_user(retinfo, &info, sizeof(*retinfo))) return -EFAULT; |