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path: root/drivers/media/video/ivtv/ivtv-ioctl.c
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Diffstat (limited to 'drivers/media/video/ivtv/ivtv-ioctl.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-ioctl.c119
1 files changed, 79 insertions, 40 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index 99f3c39a118b..fa9f0d958f96 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -35,6 +35,7 @@
#include <media/saa7127.h>
#include <media/tveeprom.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-event.h>
#include <linux/dvb/audio.h>
#include <linux/i2c-id.h>
@@ -391,7 +392,7 @@ static int ivtv_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_fo
return 0;
}
- v4l2_subdev_call(itv->sd_video, video, g_fmt, fmt);
+ v4l2_subdev_call(itv->sd_video, vbi, g_sliced_fmt, vbifmt);
vbifmt->service_set = ivtv_get_service_set(vbifmt);
return 0;
}
@@ -597,7 +598,7 @@ static int ivtv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f
return -EBUSY;
itv->vbi.sliced_in->service_set = 0;
itv->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
- v4l2_subdev_call(itv->sd_video, video, s_fmt, fmt);
+ v4l2_subdev_call(itv->sd_video, vbi, s_raw_fmt, &fmt->fmt.vbi);
return ivtv_g_fmt_vbi_cap(file, fh, fmt);
}
@@ -615,7 +616,7 @@ static int ivtv_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_fo
if (ivtv_raw_vbi(itv) && atomic_read(&itv->capturing) > 0)
return -EBUSY;
itv->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
- v4l2_subdev_call(itv->sd_video, video, s_fmt, fmt);
+ v4l2_subdev_call(itv->sd_video, vbi, s_sliced_fmt, vbifmt);
memcpy(itv->vbi.sliced_in, vbifmt, sizeof(*itv->vbi.sliced_in));
return 0;
}
@@ -1087,8 +1088,10 @@ static int ivtv_g_std(struct file *file, void *fh, v4l2_std_id *std)
int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std)
{
+ DEFINE_WAIT(wait);
struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
struct yuv_playback_info *yi = &itv->yuv_info;
+ int f;
if ((*std & V4L2_STD_ALL) == 0)
return -EINVAL;
@@ -1128,6 +1131,25 @@ int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std)
itv->is_out_60hz = itv->is_60hz;
itv->is_out_50hz = itv->is_50hz;
ivtv_call_all(itv, video, s_std_output, itv->std_out);
+
+ /*
+ * The next firmware call is time sensitive. Time it to
+ * avoid risk of a hard lock, by trying to ensure the call
+ * happens within the first 100 lines of the top field.
+ * Make 4 attempts to sync to the decoder before giving up.
+ */
+ for (f = 0; f < 4; f++) {
+ prepare_to_wait(&itv->vsync_waitq, &wait,
+ TASK_UNINTERRUPTIBLE);
+ if ((read_reg(IVTV_REG_DEC_LINE_FIELD) >> 16) < 100)
+ break;
+ schedule_timeout(msecs_to_jiffies(25));
+ }
+ finish_wait(&itv->vsync_waitq, &wait);
+
+ if (f == 4)
+ IVTV_WARN("Mode change failed to sync to decoder\n");
+
ivtv_vapi(itv, CX2341X_DEC_SET_STANDARD, 1, itv->is_out_50hz);
itv->main_rect.left = itv->main_rect.top = 0;
itv->main_rect.width = 720;
@@ -1431,6 +1453,18 @@ static int ivtv_overlay(struct file *file, void *fh, unsigned int on)
return 0;
}
+static int ivtv_subscribe_event(struct v4l2_fh *fh, struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+ case V4L2_EVENT_VSYNC:
+ case V4L2_EVENT_EOS:
+ break;
+ default:
+ return -EINVAL;
+ }
+ return v4l2_event_subscribe(fh, sub);
+}
+
static int ivtv_log_status(struct file *file, void *fh)
{
struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
@@ -1539,10 +1573,11 @@ static int ivtv_log_status(struct file *file, void *fh)
static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
- struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
int nonblocking = filp->f_flags & O_NONBLOCK;
struct ivtv_stream *s = &itv->streams[id->type];
+ unsigned long iarg = (unsigned long)arg;
switch (cmd) {
case IVTV_IOC_DMA_FRAME: {
@@ -1724,6 +1759,33 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
break;
}
+ case VIDEO_SELECT_SOURCE:
+ IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n");
+ if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
+ return -EINVAL;
+ return ivtv_passthrough_mode(itv, iarg == VIDEO_SOURCE_DEMUX);
+
+ case AUDIO_SET_MUTE:
+ IVTV_DEBUG_IOCTL("AUDIO_SET_MUTE\n");
+ itv->speed_mute_audio = iarg;
+ return 0;
+
+ case AUDIO_CHANNEL_SELECT:
+ IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
+ if (iarg > AUDIO_STEREO_SWAPPED)
+ return -EINVAL;
+ itv->audio_stereo_mode = iarg;
+ ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
+ return 0;
+
+ case AUDIO_BILINGUAL_CHANNEL_SELECT:
+ IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
+ if (iarg > AUDIO_STEREO_SWAPPED)
+ return -EINVAL;
+ itv->audio_bilingual_mode = iarg;
+ ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
+ return 0;
+
default:
return -EINVAL;
}
@@ -1755,6 +1817,10 @@ static long ivtv_default(struct file *file, void *fh, int cmd, void *arg)
case VIDEO_CONTINUE:
case VIDEO_COMMAND:
case VIDEO_TRY_COMMAND:
+ case VIDEO_SELECT_SOURCE:
+ case AUDIO_SET_MUTE:
+ case AUDIO_CHANNEL_SELECT:
+ case AUDIO_BILINGUAL_CHANNEL_SELECT:
return ivtv_decoder_ioctls(file, cmd, (void *)arg);
default:
@@ -1767,42 +1833,9 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct video_device *vfd = video_devdata(filp);
- struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
long ret;
- /* Filter dvb ioctls that cannot be handled by the v4l ioctl framework */
- switch (cmd) {
- case VIDEO_SELECT_SOURCE:
- IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n");
- if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
- return -EINVAL;
- return ivtv_passthrough_mode(itv, arg == VIDEO_SOURCE_DEMUX);
-
- case AUDIO_SET_MUTE:
- IVTV_DEBUG_IOCTL("AUDIO_SET_MUTE\n");
- itv->speed_mute_audio = arg;
- return 0;
-
- case AUDIO_CHANNEL_SELECT:
- IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
- if (arg > AUDIO_STEREO_SWAPPED)
- return -EINVAL;
- itv->audio_stereo_mode = arg;
- ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
- return 0;
-
- case AUDIO_BILINGUAL_CHANNEL_SELECT:
- IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
- if (arg > AUDIO_STEREO_SWAPPED)
- return -EINVAL;
- itv->audio_bilingual_mode = arg;
- ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
- return 0;
-
- default:
- break;
- }
-
/* check priority */
switch (cmd) {
case VIDIOC_S_CTRL:
@@ -1817,8 +1850,9 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp,
case VIDIOC_S_AUDOUT:
case VIDIOC_S_EXT_CTRLS:
case VIDIOC_S_FBUF:
+ case VIDIOC_S_PRIORITY:
case VIDIOC_OVERLAY:
- ret = v4l2_prio_check(&itv->prio, &id->prio);
+ ret = v4l2_prio_check(&itv->prio, id->prio);
if (ret)
return ret;
}
@@ -1832,10 +1866,13 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp,
long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
long res;
+ /* DQEVENT can block, so this should not run with the serialize lock */
+ if (cmd == VIDIOC_DQEVENT)
+ return ivtv_serialized_ioctl(itv, filp, cmd, arg);
mutex_lock(&itv->serialize_lock);
res = ivtv_serialized_ioctl(itv, filp, cmd, arg);
mutex_unlock(&itv->serialize_lock);
@@ -1906,6 +1943,8 @@ static const struct v4l2_ioctl_ops ivtv_ioctl_ops = {
.vidioc_g_ext_ctrls = ivtv_g_ext_ctrls,
.vidioc_s_ext_ctrls = ivtv_s_ext_ctrls,
.vidioc_try_ext_ctrls = ivtv_try_ext_ctrls,
+ .vidioc_subscribe_event = ivtv_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
void ivtv_set_funcs(struct video_device *vdev)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.