diff options
| author | Mats Randgaard <matrandg@cisco.com> | 2013-12-05 10:05:58 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-01-07 05:54:15 -0200 |
| commit | 9833239e13735dc318d1b76a6aec32b409d2653c (patch) | |
| tree | 1e68ef84e2377d1fd4a4f00165752b7efe3fdc86 /drivers/media/i2c/adv7604.c | |
| parent | 1577461be7c95bfc14084267cd74e2671310153c (diff) | |
[media] adv7604: Receive CEA formats as RGB on VGA (RGB) input
If the input is ADV7604_INPUT_VGA_RGB and RGB quantization range is
set to V4L2_DV_RGB_RANGE_AUTO, video with CEA timings will be
received as RGB. For ADV7604_INPUT_VGA_COMP, automatic CSC mode
will be selected.
See table 44 on page 205 in "ADV7604 Hardware Manual, Rev. F, August 2010"
for details.
Signed-off-by: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c/adv7604.c')
| -rw-r--r-- | drivers/media/i2c/adv7604.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index ff8130fe3d4a..d4ac8dd51589 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -911,25 +911,41 @@ static void set_rgb_quantization_range(struct v4l2_subdev *sd) { struct adv7604_state *state = to_state(sd); + v4l2_dbg(2, debug, sd, "%s: rgb_quantization_range = %d\n", + __func__, state->rgb_quantization_range); + switch (state->rgb_quantization_range) { case V4L2_DV_RGB_RANGE_AUTO: - /* automatic */ - if (is_digital_input(sd) && !(hdmi_read(sd, 0x05) & 0x80)) { - /* receiving DVI-D signal */ - - /* ADV7604 selects RGB limited range regardless of - input format (CE/IT) in automatic mode */ - if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) { - /* RGB limited range (16-235) */ - io_write_and_or(sd, 0x02, 0x0f, 0x00); - - } else { - /* RGB full range (0-255) */ - io_write_and_or(sd, 0x02, 0x0f, 0x10); - } - } else { - /* receiving HDMI or analog signal, set automode */ + if (state->selected_input == ADV7604_INPUT_VGA_RGB) { + /* Receiving analog RGB signal + * Set RGB full range (0-255) */ + io_write_and_or(sd, 0x02, 0x0f, 0x10); + break; + } + + if (state->selected_input == ADV7604_INPUT_VGA_COMP) { + /* Receiving analog YPbPr signal + * Set automode */ + io_write_and_or(sd, 0x02, 0x0f, 0xf0); + break; + } + + if (hdmi_read(sd, 0x05) & 0x80) { + /* Receiving HDMI signal + * Set automode */ io_write_and_or(sd, 0x02, 0x0f, 0xf0); + break; + } + + /* Receiving DVI-D signal + * ADV7604 selects RGB limited range regardless of + * input format (CE/IT) in automatic mode */ + if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) { + /* RGB limited range (16-235) */ + io_write_and_or(sd, 0x02, 0x0f, 0x00); + } else { + /* RGB full range (0-255) */ + io_write_and_or(sd, 0x02, 0x0f, 0x10); } break; case V4L2_DV_RGB_RANGE_LIMITED: @@ -1709,7 +1725,7 @@ static int adv7604_log_status(struct v4l2_subdev *sd) char *input_color_space_txt[16] = { "RGB limited range (16-235)", "RGB full range (0-255)", "YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)", - "XvYCC Bt.601", "XvYCC Bt.709", + "xvYCC Bt.601", "xvYCC Bt.709", "YCbCr Bt.601 (0-255)", "YCbCr Bt.709 (0-255)", "invalid", "invalid", "invalid", "invalid", "invalid", "invalid", "invalid", "automatic" |