diff options
| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-08-09 21:47:15 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-08-21 15:25:08 -0500 |
| commit | 1a1ba95e80e567176aeb2a10b2dc6d920b06a33e (patch) | |
| tree | 4131cbd9989ed20213158ffdb11b7dcfcc6ff5d4 /drivers/media/usb/au0828/au0828-video.c | |
| parent | e2147d0af0aa77c1a7b610224161993ef62e3ac1 (diff) | |
[media] au0828: add suspend/resume code for V4L2
No timers should be enabled during suspend. So,
stop them. At resume time, we should do the proper
initialization for it to keep working.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb/au0828/au0828-video.c')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-video.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c index 36ff3b496f87..574a08c7013d 100644 --- a/drivers/media/usb/au0828/au0828-video.c +++ b/drivers/media/usb/au0828/au0828-video.c @@ -32,7 +32,6 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/device.h> -#include <linux/suspend.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> @@ -1871,6 +1870,64 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) return rc; } +void au0828_v4l2_suspend(struct au0828_dev *dev) +{ + struct urb *urb; + int i; + + if (dev->stream_state == STREAM_ON) { + au0828_analog_stream_disable(dev); + /* stop urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + urb = dev->isoc_ctl.urb[i]; + if (urb) { + if (!irqs_disabled()) + usb_kill_urb(urb); + else + usb_unlink_urb(urb); + } + } + } + + if (dev->vid_timeout_running) + del_timer_sync(&dev->vid_timeout); + if (dev->vbi_timeout_running) + del_timer_sync(&dev->vbi_timeout); +} + +void au0828_v4l2_resume(struct au0828_dev *dev) +{ + int i, rc; + + if (dev->stream_state == STREAM_ON) { + au0828_stream_interrupt(dev); + au0828_init_tuner(dev); + } + + if (dev->vid_timeout_running) + mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); + if (dev->vbi_timeout_running) + mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); + + /* If we were doing ac97 instead of i2s, it would go here...*/ + au0828_i2s_init(dev); + + au0828_analog_stream_enable(dev); + + if (!(dev->stream_state == STREAM_ON)) { + au0828_analog_stream_reset(dev); + /* submit urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); + if (rc) { + au0828_isocdbg("submit of urb %i failed (error=%i)\n", + i, rc); + au0828_uninit_isoc(dev); + } + } + } +} + static struct v4l2_file_operations au0828_v4l_fops = { .owner = THIS_MODULE, .open = au0828_v4l2_open, |