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[media] saa7134: add vidioc_querystd

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Signed-off-by: Mikhail Domrachev <mihail.domrychev@comexp.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mikhail Domrachev 2014-04-01 09:28:17 -03:00 committed by Mauro Carvalho Chehab
parent a112fbaf78
commit 707b7f80b5
4 changed files with 46 additions and 2 deletions
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1
drivers/media/pci/saa7134/saa7134-empress.c
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@ -264,6 +264,7 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
.vidioc_s_input = saa7134_s_input,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
.vidioc_querystd = saa7134_querystd,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,

5
drivers/media/pci/saa7134/saa7134-reg.h
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@ -167,17 +167,22 @@
#define SAA7134_HSYNC_START 0x106
#define SAA7134_HSYNC_STOP 0x107
#define SAA7134_SYNC_CTRL 0x108
#define SAA7134_SYNC_CTRL_AUFD (1 << 7)
#define SAA7134_LUMA_CTRL 0x109
#define SAA7134_LUMA_CTRL_LDEL (1 << 5)
#define SAA7134_DEC_LUMA_BRIGHT 0x10a
#define SAA7134_DEC_LUMA_CONTRAST 0x10b
#define SAA7134_DEC_CHROMA_SATURATION 0x10c
#define SAA7134_DEC_CHROMA_HUE 0x10d
#define SAA7134_CHROMA_CTRL1 0x10e
#define SAA7134_CHROMA_CTRL1_AUTO0 (1 << 1)
#define SAA7134_CHROMA_CTRL1_FCTC (1 << 2)
#define SAA7134_CHROMA_GAIN 0x10f
#define SAA7134_CHROMA_CTRL2 0x110
#define SAA7134_MODE_DELAY_CTRL 0x111
#define SAA7134_ANALOG_ADC 0x114
#define SAA7134_ANALOG_ADC_AUTO1 (1 << 2)
#define SAA7134_VGATE_START 0x115
#define SAA7134_VGATE_STOP 0x116
#define SAA7134_MISC_VGATE_MSB 0x117

41
drivers/media/pci/saa7134/saa7134-video.c
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@ -452,19 +452,26 @@ static void video_mux(struct saa7134_dev *dev, int input)
static void saa7134_set_decoder(struct saa7134_dev *dev)
{
int luma_control, sync_control, mux;
int luma_control, sync_control, chroma_ctrl1, mux;
struct saa7134_tvnorm *norm = dev->tvnorm;
mux = card_in(dev, dev->ctl_input).vmux;
luma_control = norm->luma_control;
sync_control = norm->sync_control;
chroma_ctrl1 = norm->chroma_ctrl1;
if (mux > 5)
luma_control |= 0x80; /* svideo */
if (noninterlaced || dev->nosignal)
sync_control |= 0x20;
/* switch on auto standard detection */
sync_control |= SAA7134_SYNC_CTRL_AUFD;
chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
/* setup video decoder */
saa_writeb(SAA7134_INCR_DELAY, 0x08);
saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
@ -487,7 +494,7 @@ static void saa7134_set_decoder(struct saa7134_dev *dev)
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
saa_writeb(SAA7134_CHROMA_CTRL1, norm->chroma_ctrl1);
saa_writeb(SAA7134_CHROMA_CTRL1, chroma_ctrl1);
saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
@ -1686,6 +1693,35 @@ int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
}
EXPORT_SYMBOL_GPL(saa7134_g_std);
static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
{
static v4l2_std_id stds[] = {
V4L2_STD_UNKNOWN,
V4L2_STD_NTSC,
V4L2_STD_PAL,
V4L2_STD_SECAM };
v4l2_std_id result = 0;
u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
if (!(st2 & 0x1)) /* RDCAP == 0 */
result = V4L2_STD_UNKNOWN;
else
result = stds[st1 & 0x03];
return result;
}
int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
{
struct saa7134_dev *dev = video_drvdata(file);
*std &= saa7134_read_std(dev);
return 0;
}
EXPORT_SYMBOL_GPL(saa7134_querystd);
static int saa7134_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cap)
{
@ -2079,6 +2115,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_dqbuf = saa7134_dqbuf,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
.vidioc_querystd = saa7134_querystd,
.vidioc_enum_input = saa7134_enum_input,
.vidioc_g_input = saa7134_g_input,
.vidioc_s_input = saa7134_s_input,

1
drivers/media/pci/saa7134/saa7134.h
View File

@ -782,6 +782,7 @@ extern struct video_device saa7134_radio_template;
int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id);
int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id);
int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std);
int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i);
int saa7134_g_input(struct file *file, void *priv, unsigned int *i);
int saa7134_s_input(struct file *file, void *priv, unsigned int i);