diff options
| author | Terry Heo <terryheo@google.com> | 2015-09-22 10:18:05 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-11-17 17:53:41 +0100 |
| commit | ce3556bde3f507788bc3d0eedbf2e2cc85ba9f8c (patch) | |
| tree | c51b79a3d88067f5969dc8ef5745e872e2f60507 /drivers/media/usb/cx231xx | |
| parent | [media] radio-shark2: constify radio_tea5777_ops structures (diff) | |
| download | linux-ce3556bde3f507788bc3d0eedbf2e2cc85ba9f8c.tar.xz linux-ce3556bde3f507788bc3d0eedbf2e2cc85ba9f8c.zip | |
[media] cx231xx: fix bulk transfer mode
The current cx231xx driver doesn't work with bulk transfer mode.
This patch makes it possible to use bulk transfer mode.
Signed-off-by: Terry Heo <terryheo@google.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/cx231xx')
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-core.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index a2fd49b6be83..f497888d94bf 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -914,6 +914,7 @@ EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc); */ void cx231xx_uninit_bulk(struct cx231xx *dev) { + struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq; struct urb *urb; int i; @@ -931,7 +932,7 @@ void cx231xx_uninit_bulk(struct cx231xx *dev) if (dev->video_mode.bulk_ctl.transfer_buffer[i]) { usb_free_coherent(dev->udev, urb->transfer_buffer_length, - dev->video_mode.isoc_ctl. + dev->video_mode.bulk_ctl. transfer_buffer[i], urb->transfer_dma); } @@ -943,10 +944,12 @@ void cx231xx_uninit_bulk(struct cx231xx *dev) kfree(dev->video_mode.bulk_ctl.urb); kfree(dev->video_mode.bulk_ctl.transfer_buffer); + kfree(dma_q->p_left_data); dev->video_mode.bulk_ctl.urb = NULL; dev->video_mode.bulk_ctl.transfer_buffer = NULL; dev->video_mode.bulk_ctl.num_bufs = 0; + dma_q->p_left_data = NULL; if (dev->mode_tv == 0) cx231xx_capture_start(dev, 0, Raw_Video); @@ -1196,6 +1199,16 @@ int cx231xx_init_bulk(struct cx231xx *dev, int max_packets, sb_size, cx231xx_bulk_irq_callback, dma_q); } + /* clear halt */ + rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe); + if (rc < 0) { + dev_err(dev->dev, + "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n", + rc); + cx231xx_uninit_bulk(dev); + return rc; + } + init_waitqueue_head(&dma_q->wq); /* submit urbs and enables IRQ */ |