diff options
| author | Chris Park <Chris.Park@amd.com> | 2019-04-17 16:32:25 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:49 -0500 |
| commit | efa023363cdffafa839e5cc7e6fc9f38631e998d (patch) | |
| tree | 1e426d2d500a45d69065b0b4fe6dca65d022fd68 /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | 64827cadcce3023521b687b7db75c7bc388ca201 (diff) | |
drm/amd/display: Support AVI InfoFrame V3 and V4
[Why]
Part of HDMI 2.1 requires AVI InfoFrame version update
from current V2 to V3 for new VICs, and V4 for
new colorimetry.
[How]
Implement V3 and V4 AVI InfoFrame.
If (C1, C0)=(1, 1) and (EC2, EC1, EC0)=(1, 1, 1),
the Source shall use 20 AVI InfoFrame Version 4.
If VIC >= 128, the Source shall use AVI InfoFrame Version 3
Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index eac7186e4f08..9ef417eb697d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -2354,7 +2354,18 @@ static void set_avi_info_frame( break; } } + /* If VIC >= 128, the Source shall use AVI InfoFrame Version 3*/ hdmi_info.bits.VIC0_VIC7 = vic; + if (vic >= 128) + hdmi_info.bits.header.version = 3; + /* If (C1, C0)=(1, 1) and (EC2, EC1, EC0)=(1, 1, 1), + * the Source shall use 20 AVI InfoFrame Version 4 + */ + if (hdmi_info.bits.C0_C1 == COLORIMETRY_EXTENDED && + hdmi_info.bits.EC0_EC2 == COLORIMETRYEX_RESERVED) { + hdmi_info.bits.header.version = 4; + hdmi_info.bits.header.length = 14; + } /* pixel repetition * PR0 - PR3 start from 0 whereas pHwPathMode->mode.timing.flags.pixel @@ -2376,9 +2387,9 @@ static void set_avi_info_frame( /* check_sum - Calculate AFMT_AVI_INFO0 ~ AFMT_AVI_INFO3 */ check_sum = &hdmi_info.packet_raw_data.sb[0]; - *check_sum = HDMI_INFOFRAME_TYPE_AVI + HDMI_AVI_INFOFRAME_SIZE + 2; + *check_sum = HDMI_INFOFRAME_TYPE_AVI + hdmi_info.bits.header.length + hdmi_info.bits.header.version; - for (byte_index = 1; byte_index <= HDMI_AVI_INFOFRAME_SIZE; byte_index++) + for (byte_index = 1; byte_index <= hdmi_info.bits.header.length; byte_index++) *check_sum += hdmi_info.packet_raw_data.sb[byte_index]; /* one byte complement */ |