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author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-08-09 10:50:44 -0300 |
---|---|---|
committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 12:00:27 +0900 |
commit | 7f46ed9c1594ec3613f8f4fe7db87604fa4f23c8 (patch) | |
tree | e5e39652a87bc182fdeb88fad2358944570056c0 /drivers/media/usb | |
parent | 7cb82ae85a98136c45e86d7e24081b786bdcb082 (diff) | |
download | linux-3.10-7f46ed9c1594ec3613f8f4fe7db87604fa4f23c8.tar.gz linux-3.10-7f46ed9c1594ec3613f8f4fe7db87604fa4f23c8.tar.bz2 linux-3.10-7f46ed9c1594ec3613f8f4fe7db87604fa4f23c8.zip |
[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.
Change-Id: Ia7edbf78f685e54559d039cf1e77a5b236020abb
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb')
-rw-r--r-- | drivers/media/usb/au0828/au0828-core.c | 2 | ||||
-rw-r--r-- | drivers/media/usb/au0828/au0828-video.c | 59 | ||||
-rw-r--r-- | drivers/media/usb/au0828/au0828.h | 7 |
3 files changed, 67 insertions, 1 deletions
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 26ec50539dc..5f13888d73a 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -290,6 +290,7 @@ static int au0828_suspend(struct usb_interface *interface, return 0; au0828_rc_suspend(dev); + au0828_v4l2_suspend(dev); au0828_dvb_suspend(dev); /* FIXME: should suspend also ATV/DTV */ @@ -310,6 +311,7 @@ static int au0828_resume(struct usb_interface *interface) au0828_gpio_setup(dev); au0828_rc_resume(dev); + au0828_v4l2_resume(dev); au0828_dvb_resume(dev); /* FIXME: should resume also ATV/DTV */ diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c index a02469f52ff..90c3f0e5e2b 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, diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h index d3223435309..0d8cfe5cd26 100644 --- a/drivers/media/usb/au0828/au0828.h +++ b/drivers/media/usb/au0828/au0828.h @@ -311,6 +311,13 @@ int au0828_analog_register(struct au0828_dev *dev, struct usb_interface *interface); int au0828_analog_stream_disable(struct au0828_dev *d); void au0828_analog_unregister(struct au0828_dev *dev); +#ifdef CONFIG_VIDEO_AU0828_V4L2 +void au0828_v4l2_suspend(struct au0828_dev *dev); +void au0828_v4l2_resume(struct au0828_dev *dev); +#else +static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { }; +static inline void au0828_v4l2_resume(struct au0828_dev *dev) { }; +#endif /* ----------------------------------------------------------- */ /* au0828-dvb.c */ |