diff options
| author | Ladislav Michl <ladis@linux-mips.org> | 2016-11-18 19:09:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-21 11:36:15 +0100 |
| commit | 74bccc9b71dc41d37e73fcdbcbec85310a670751 (patch) | |
| tree | a87d2ab5995804803d314905260c92310e3d4a33 /drivers/usb/class | |
| parent | ba8c931ded8d96c8923662099416bc2096644eab (diff) | |
| download | linux-74bccc9b71dc41d37e73fcdbcbec85310a670751.tar.gz | |
cdc-acm: store in and out pipes in acm structure
Clearing stall needs pipe descriptor, store it in acm structure. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Acked-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 33 | ||||
| -rw-r--r-- | drivers/usb/class/cdc-acm.h | 1 |
2 files changed, 18 insertions, 16 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 51676670b85c..e5c8535ce8d7 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1338,8 +1338,16 @@ made_compressed_probe: spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); acm->is_int_ep = usb_endpoint_xfer_int(epread); - if (acm->is_int_ep) + if (acm->is_int_ep) { acm->bInterval = epread->bInterval; + acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress); + } else { + acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); + } + if (usb_endpoint_xfer_int(epwrite)) + acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress); + else + acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress); tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; init_usb_anchor(&acm->delayed); @@ -1374,20 +1382,15 @@ made_compressed_probe: urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; urb->transfer_dma = rb->dma; - if (acm->is_int_ep) { - usb_fill_int_urb(urb, acm->dev, - usb_rcvintpipe(usb_dev, epread->bEndpointAddress), - rb->base, + if (acm->is_int_ep) + usb_fill_int_urb(urb, acm->dev, acm->in, rb->base, acm->readsize, acm_read_bulk_callback, rb, acm->bInterval); - } else { - usb_fill_bulk_urb(urb, acm->dev, - usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress), - rb->base, + else + usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base, acm->readsize, acm_read_bulk_callback, rb); - } acm->read_urbs[i] = urb; __set_bit(i, &acm->read_urbs_free); @@ -1400,12 +1403,10 @@ made_compressed_probe: goto alloc_fail7; if (usb_endpoint_xfer_int(epwrite)) - usb_fill_int_urb(snd->urb, usb_dev, - usb_sndintpipe(usb_dev, epwrite->bEndpointAddress), + usb_fill_int_urb(snd->urb, usb_dev, acm->out, NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval); else - usb_fill_bulk_urb(snd->urb, usb_dev, - usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress), + usb_fill_bulk_urb(snd->urb, usb_dev, acm->out, NULL, acm->writesize, acm_write_bulk, snd); snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; if (quirks & SEND_ZERO_PACKET) @@ -1477,8 +1478,8 @@ skip_countries: } if (quirks & CLEAR_HALT_CONDITIONS) { - usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress)); - usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress)); + usb_clear_halt(usb_dev, acm->in); + usb_clear_halt(usb_dev, acm->out); } return 0; diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 1f1eabfd8462..58ddd2509c5b 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -83,6 +83,7 @@ struct acm { struct usb_device *dev; /* the corresponding usb device */ struct usb_interface *control; /* control interface */ struct usb_interface *data; /* data interface */ + unsigned in, out; /* i/o pipes */ struct tty_port port; /* our tty port data */ struct urb *ctrlurb; /* urbs */ u8 *ctrl_buffer; /* buffers of urbs */ |