#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
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);
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);
}
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)
{
.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,
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);