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drm/radeon/audio: write audio/video latency info for DCE6/8
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Needed by the hda driver to properly set up synchronization
on the audio side.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
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Alex Deucher committed Nov 1, 2013
1 parent 712fd8a commit b188025
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Showing 3 changed files with 91 additions and 0 deletions.
43 changes: 43 additions & 0 deletions drivers/gpu/drm/radeon/dce6_afmt.c
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,49 @@ void dce6_afmt_select_pin(struct drm_encoder *encoder)
AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));
}

void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
struct drm_display_mode *mode)
{
struct radeon_device *rdev = encoder->dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
u32 tmp = 0, offset;

if (!dig->afmt->pin)
return;

offset = dig->afmt->pin->offset;

list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}

if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return;
}

if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
if (connector->latency_present[1])
tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
AUDIO_LIPSYNC(connector->audio_latency[1]);
else
tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
} else {
if (connector->latency_present[0])
tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
AUDIO_LIPSYNC(connector->audio_latency[0]);
else
tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
}
WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
}

void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder)
{
struct radeon_device *rdev = encoder->dev->dev_private;
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3 changes: 3 additions & 0 deletions drivers/gpu/drm/radeon/evergreen_hdmi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,8 @@
extern void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder);
extern void dce6_afmt_write_sad_regs(struct drm_encoder *encoder);
extern void dce6_afmt_select_pin(struct drm_encoder *encoder);
extern void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
struct drm_display_mode *mode);

/*
* update the N and CTS parameters for a given pixel clock rate
Expand Down Expand Up @@ -361,6 +363,7 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
if (ASIC_IS_DCE6(rdev)) {
dce6_afmt_select_pin(encoder);
dce6_afmt_write_sad_regs(encoder);
dce6_afmt_write_latency_fields(encoder, mode);
} else {
evergreen_hdmi_write_sad_regs(encoder);
dce4_afmt_write_latency_fields(encoder, mode);
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45 changes: 45 additions & 0 deletions drivers/gpu/drm/radeon/sid.h
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Original file line number Diff line number Diff line change
Expand Up @@ -683,6 +683,51 @@
* bit5 = 176.4 kHz
* bit6 = 192 kHz
*/

#define AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC 0x37
# define VIDEO_LIPSYNC(x) (((x) & 0xff) << 0)
# define AUDIO_LIPSYNC(x) (((x) & 0xff) << 8)
/* VIDEO_LIPSYNC, AUDIO_LIPSYNC
* 0 = invalid
* x = legal delay value
* 255 = sync not supported
*/
#define AZ_F0_CODEC_PIN_CONTROL_RESPONSE_HBR 0x38
# define HBR_CAPABLE (1 << 0) /* enabled by default */

#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO0 0x3a
# define MANUFACTURER_ID(x) (((x) & 0xffff) << 0)
# define PRODUCT_ID(x) (((x) & 0xffff) << 16)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO1 0x3b
# define SINK_DESCRIPTION_LEN(x) (((x) & 0xff) << 0)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO2 0x3c
# define PORT_ID0(x) (((x) & 0xffffffff) << 0)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO3 0x3d
# define PORT_ID1(x) (((x) & 0xffffffff) << 0)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO4 0x3e
# define DESCRIPTION0(x) (((x) & 0xff) << 0)
# define DESCRIPTION1(x) (((x) & 0xff) << 8)
# define DESCRIPTION2(x) (((x) & 0xff) << 16)
# define DESCRIPTION3(x) (((x) & 0xff) << 24)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO5 0x3f
# define DESCRIPTION4(x) (((x) & 0xff) << 0)
# define DESCRIPTION5(x) (((x) & 0xff) << 8)
# define DESCRIPTION6(x) (((x) & 0xff) << 16)
# define DESCRIPTION7(x) (((x) & 0xff) << 24)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO6 0x40
# define DESCRIPTION8(x) (((x) & 0xff) << 0)
# define DESCRIPTION9(x) (((x) & 0xff) << 8)
# define DESCRIPTION10(x) (((x) & 0xff) << 16)
# define DESCRIPTION11(x) (((x) & 0xff) << 24)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO7 0x41
# define DESCRIPTION12(x) (((x) & 0xff) << 0)
# define DESCRIPTION13(x) (((x) & 0xff) << 8)
# define DESCRIPTION14(x) (((x) & 0xff) << 16)
# define DESCRIPTION15(x) (((x) & 0xff) << 24)
#define AZ_F0_CODEC_PIN_CONTROL_SINK_INFO8 0x42
# define DESCRIPTION16(x) (((x) & 0xff) << 0)
# define DESCRIPTION17(x) (((x) & 0xff) << 8)

#define AZ_F0_CODEC_PIN_CONTROL_HOTPLUG_CONTROL 0x54
# define AUDIO_ENABLED (1 << 31)

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