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drm/amd/display: add automated audio test support

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Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
abdoulaye berthe 2019-07-26 11:25:43 -04:00 committed by Alex Deucher
parent 852a91d627
commit 8c8048f207
3 changed files with 134 additions and 7 deletions
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92
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -2546,6 +2546,92 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
0);
}
static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
{
union audio_test_mode dpcd_test_mode = {0};
struct audio_test_pattern_type dpcd_pattern_type = {0};
union audio_test_pattern_period dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
struct pipe_ctx *pipe_ctx = &pipes[0];
unsigned int channel_count;
unsigned int channel = 0;
unsigned int modes = 0;
unsigned int sampling_rate_in_hz = 0;
// get audio test mode and test pattern parameters
core_link_read_dpcd(
link,
DP_TEST_AUDIO_MODE,
&dpcd_test_mode.raw,
sizeof(dpcd_test_mode));
core_link_read_dpcd(
link,
DP_TEST_AUDIO_PATTERN_TYPE,
&dpcd_pattern_type.value,
sizeof(dpcd_pattern_type));
channel_count = dpcd_test_mode.bits.channel_count + 1;
// read pattern periods for requested channels when sawTooth pattern is requested
if (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH ||
dpcd_pattern_type.value == AUDIO_TEST_PATTERN_OPERATOR_DEFINED) {
test_pattern = (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH) ?
DP_TEST_PATTERN_AUDIO_SAWTOOTH : DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
// read period for each channel
for (channel = 0; channel < channel_count; channel++) {
core_link_read_dpcd(
link,
DP_TEST_AUDIO_PERIOD_CH1 + channel,
&dpcd_pattern_period[channel].raw,
sizeof(dpcd_pattern_period[channel]));
}
}
// translate sampling rate
switch (dpcd_test_mode.bits.sampling_rate) {
case AUDIO_SAMPLING_RATE_32KHZ:
sampling_rate_in_hz = 32000;
break;
case AUDIO_SAMPLING_RATE_44_1KHZ:
sampling_rate_in_hz = 44100;
break;
case AUDIO_SAMPLING_RATE_48KHZ:
sampling_rate_in_hz = 48000;
break;
case AUDIO_SAMPLING_RATE_88_2KHZ:
sampling_rate_in_hz = 88200;
break;
case AUDIO_SAMPLING_RATE_96KHZ:
sampling_rate_in_hz = 96000;
break;
case AUDIO_SAMPLING_RATE_176_4KHZ:
sampling_rate_in_hz = 176400;
break;
case AUDIO_SAMPLING_RATE_192KHZ:
sampling_rate_in_hz = 192000;
break;
default:
sampling_rate_in_hz = 0;
break;
}
link->audio_test_data.flags.test_requested = 1;
link->audio_test_data.flags.disable_video = disable_video;
link->audio_test_data.sampling_rate = sampling_rate_in_hz;
link->audio_test_data.channel_count = channel_count;
link->audio_test_data.pattern_type = test_pattern;
if (test_pattern == DP_TEST_PATTERN_AUDIO_SAWTOOTH) {
for (modes = 0; modes < pipe_ctx->stream->audio_info.mode_count; modes++) {
link->audio_test_data.pattern_period[modes] = dpcd_pattern_period[modes].bits.pattern_period;
}
}
}
static void handle_automated_test(struct dc_link *link)
{
union test_request test_request;
@ -2575,6 +2661,12 @@ static void handle_automated_test(struct dc_link *link)
dp_test_send_link_test_pattern(link);
test_response.bits.ACK = 1;
}
if (test_request.bits.AUDIO_TEST_PATTERN) {
dp_test_get_audio_test_data(link, test_request.bits.TEST_AUDIO_DISABLED_VIDEO);
test_response.bits.ACK = 1;
}
if (test_request.bits.PHY_TEST_PATTERN) {
dp_test_send_phy_test_pattern(link);
test_response.bits.ACK = 1;

48
drivers/gpu/drm/amd/display/dc/dc_dp_types.h
View File

@ -469,13 +469,13 @@ union training_aux_rd_interval {
/* Automated test structures */
union test_request {
struct {
uint8_t LINK_TRAINING :1;
uint8_t LINK_TEST_PATTRN :1;
uint8_t EDID_READ :1;
uint8_t PHY_TEST_PATTERN :1;
uint8_t AUDIO_TEST_PATTERN :1;
uint8_t RESERVED :1;
uint8_t TEST_STEREO_3D :1;
uint8_t LINK_TRAINING :1;
uint8_t LINK_TEST_PATTRN :1;
uint8_t EDID_READ :1;
uint8_t PHY_TEST_PATTERN :1;
uint8_t RESERVED :1;
uint8_t AUDIO_TEST_PATTERN :1;
uint8_t TEST_AUDIO_DISABLED_VIDEO :1;
} bits;
uint8_t raw;
};
@ -534,6 +534,40 @@ union test_misc {
unsigned char raw;
};
union audio_test_mode {
struct {
unsigned char sampling_rate :4;
unsigned char channel_count :4;
} bits;
unsigned char raw;
};
union audio_test_pattern_period {
struct {
unsigned char pattern_period :4;
unsigned char reserved :4;
} bits;
unsigned char raw;
};
struct audio_test_pattern_type {
unsigned char value;
};
struct dp_audio_test_data_flags {
uint8_t test_requested :1;
uint8_t disable_video :1;
};
struct dp_audio_test_data {
struct dp_audio_test_data_flags flags;
uint8_t sampling_rate;
uint8_t channel_count;
uint8_t pattern_type;
uint8_t pattern_period[8];
};
/* FEC capability DPCD register field bits-*/
union dpcd_fec_capability {
struct {

1
drivers/gpu/drm/amd/display/dc/dc_link.h
View File

@ -94,6 +94,7 @@ struct dc_link {
struct dc_lane_settings cur_lane_setting;
struct dc_link_settings preferred_link_setting;
struct dc_link_training_overrides preferred_training_settings;
struct dp_audio_test_data audio_test_data;
uint8_t ddc_hw_inst;