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drm/amd/display: Support AVI InfoFrame V3 and V4

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[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>
This commit is contained in:
Chris Park 2019-04-17 16:32:25 -04:00 committed by Alex Deucher
parent 64827cadcc
commit efa023363c
1 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -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 */