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path: root/drivers/media/i2c/tvp5150.c
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Diffstat (limited to 'drivers/media/i2c/tvp5150.c')
-rw-r--r--drivers/media/i2c/tvp5150.c56
1 files changed, 35 insertions, 21 deletions
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 3a0fe8c..48646a7 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -291,8 +291,12 @@ static void tvp5150_selmux(struct v4l2_subdev *sd)
tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
- /* Svideo should enable YCrCb output and disable GPCL output
- * For Composite and TV, it should be the reverse
+ /*
+ * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
+ * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
+ * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
+ * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
+ * INTREQ/GPCL/VBLK to logic 1.
*/
val = tvp5150_read(sd, TVP5150_MISC_CTL);
if (val < 0) {
@@ -301,9 +305,9 @@ static void tvp5150_selmux(struct v4l2_subdev *sd)
}
if (decoder->input == TVP5150_SVIDEO)
- val = (val & ~0x40) | 0x10;
+ val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
else
- val = (val & ~0x10) | 0x40;
+ val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
tvp5150_write(sd, TVP5150_MISC_CTL, val);
};
@@ -455,7 +459,12 @@ static const struct i2c_reg_value tvp5150_init_enable[] = {
},{ /* Automatic offset and AGC enabled */
TVP5150_ANAL_CHL_CTL, 0x15
},{ /* Activate YCrCb output 0x9 or 0xd ? */
- TVP5150_MISC_CTL, 0x6f
+ TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
+ TVP5150_MISC_CTL_INTREQ_OE |
+ TVP5150_MISC_CTL_YCBCR_OE |
+ TVP5150_MISC_CTL_SYNC_OE |
+ TVP5150_MISC_CTL_VBLANK |
+ TVP5150_MISC_CTL_CLOCK_OE,
},{ /* Activates video std autodetection for all standards */
TVP5150_AUTOSW_MSK, 0x0
},{ /* Default format: 0x47. For 4:2:2: 0x40 */
@@ -861,8 +870,6 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
f = &format->format;
- tvp5150_reset(sd, 0);
-
f->width = decoder->rect.width;
f->height = decoder->rect.height / 2;
@@ -1051,21 +1058,27 @@ static const struct media_entity_operations tvp5150_sd_media_ops = {
static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
{
struct tvp5150 *decoder = to_tvp5150(sd);
- /* Output format: 8-bit ITU-R BT.656 with embedded syncs */
- int val = 0x09;
-
- /* Output format: 8-bit 4:2:2 YUV with discrete sync */
- if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
- val = 0x0d;
+ int val;
- /* Initializes TVP5150 to its default values */
- /* # set PCLK (27MHz) */
- tvp5150_write(sd, TVP5150_CONF_SHARED_PIN, 0x00);
+ /* Enable or disable the video output signals. */
+ val = tvp5150_read(sd, TVP5150_MISC_CTL);
+ if (val < 0)
+ return val;
+
+ val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
+ TVP5150_MISC_CTL_CLOCK_OE);
+
+ if (enable) {
+ /*
+ * Enable the YCbCr and clock outputs. In discrete sync mode
+ * (non-BT.656) additionally enable the the sync outputs.
+ */
+ val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
+ if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
+ val |= TVP5150_MISC_CTL_SYNC_OE;
+ }
- if (enable)
- tvp5150_write(sd, TVP5150_MISC_CTL, val);
- else
- tvp5150_write(sd, TVP5150_MISC_CTL, 0x00);
+ tvp5150_write(sd, TVP5150_MISC_CTL, val);
return 0;
}
@@ -1524,7 +1537,6 @@ static int tvp5150_probe(struct i2c_client *c,
res = core->hdl.error;
goto err;
}
- v4l2_ctrl_handler_setup(&core->hdl);
/* Default is no cropping */
core->rect.top = 0;
@@ -1535,6 +1547,8 @@ static int tvp5150_probe(struct i2c_client *c,
core->rect.left = 0;
core->rect.width = TVP5150_H_MAX;
+ tvp5150_reset(sd, 0); /* Calls v4l2_ctrl_handler_setup() */
+
res = v4l2_async_register_subdev(sd);
if (res < 0)
goto err;
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