/**
* r600_hdmi_update_audio_settings - Update audio infoframe
*
* @encoder: drm encoder
*
* Gets info about current audio stream and updates audio infoframe.
*/
void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct r600_audio_pin audio = r600_audio_status(rdev);
uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
struct hdmi_audio_infoframe frame;
uint32_t offset;
uint32_t value;
ssize_t err;
if (!dig->afmt || !dig->afmt->enabled)
return;
offset = dig->afmt->offset;
DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
audio.channels, audio.rate, audio.bits_per_sample);
DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
(int)audio.status_bits, (int)audio.category_code);
err = hdmi_audio_infoframe_init(&frame);
if (err < 0) {
DRM_ERROR("failed to setup audio infoframe\n");
return;
}
frame.channels = audio.channels;
err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
DRM_ERROR("failed to pack audio infoframe\n");
return;
}
value = RREG32(HDMI0_AUDIO_PACKET_CONTROL + offset);
if (value & HDMI0_AUDIO_TEST_EN)
WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
value & ~HDMI0_AUDIO_TEST_EN);
WREG32_OR(HDMI0_CONTROL + offset,
HDMI0_ERROR_ACK);
WREG32_AND(HDMI0_INFOFRAME_CONTROL0 + offset,
~HDMI0_AUDIO_INFO_SOURCE);
r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer));
WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
HDMI0_AUDIO_INFO_CONT |
HDMI0_AUDIO_INFO_UPDATE);
}
/*
* have buffer status changed since last call?
*/
int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
int status, result;
if (!dig->afmt || !dig->afmt->enabled)
return 0;
status = r600_hdmi_is_audio_buffer_filled(encoder);
result = dig->afmt->last_buffer_filled_status != status;
dig->afmt->last_buffer_filled_status = status;
return result;
}
/*
* write the audio workaround status to the hardware
*/
static void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
uint32_t offset = dig->afmt->offset;
bool hdmi_audio_workaround = false; /* FIXME */
u32 value;
if (!hdmi_audio_workaround ||
r600_hdmi_is_audio_buffer_filled(encoder))
value = 0; /* disable workaround */
else
value = HDMI0_AUDIO_TEST_EN; /* enable workaround */
WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
value, ~HDMI0_AUDIO_TEST_EN);
}
/*
* update settings with current parameters from audio engine
*/
void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct r600_audio audio = r600_audio_status(rdev);
uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
struct hdmi_audio_infoframe frame;
uint32_t offset;
uint32_t iec;
ssize_t err;
if (!dig->afmt || !dig->afmt->enabled)
return;
offset = dig->afmt->offset;
DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
audio.channels, audio.rate, audio.bits_per_sample);
DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
(int)audio.status_bits, (int)audio.category_code);
iec = 0;
if (audio.status_bits & AUDIO_STATUS_PROFESSIONAL)
iec |= 1 << 0;
if (audio.status_bits & AUDIO_STATUS_NONAUDIO)
iec |= 1 << 1;
if (audio.status_bits & AUDIO_STATUS_COPYRIGHT)
iec |= 1 << 2;
if (audio.status_bits & AUDIO_STATUS_EMPHASIS)
iec |= 1 << 3;
iec |= HDMI0_60958_CS_CATEGORY_CODE(audio.category_code);
switch (audio.rate) {
case 32000:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x3);
break;
case 44100:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x0);
break;
case 48000:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x2);
break;
case 88200:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0x8);
break;
case 96000:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xa);
break;
case 176400:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xc);
break;
case 192000:
iec |= HDMI0_60958_CS_SAMPLING_FREQUENCY(0xe);
break;
}
WREG32(HDMI0_60958_0 + offset, iec);
iec = 0;
switch (audio.bits_per_sample) {
case 16:
iec |= HDMI0_60958_CS_WORD_LENGTH(0x2);
break;
case 20:
iec |= HDMI0_60958_CS_WORD_LENGTH(0x3);
break;
case 24:
iec |= HDMI0_60958_CS_WORD_LENGTH(0xb);
break;
}
if (audio.status_bits & AUDIO_STATUS_V)
iec |= 0x5 << 16;
WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f);
err = hdmi_audio_infoframe_init(&frame);
if (err < 0) {
DRM_ERROR("failed to setup audio infoframe\n");
return;
}
frame.channels = audio.channels;
err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
DRM_ERROR("failed to pack audio infoframe\n");
return;
}
r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer));
r600_hdmi_audio_workaround(encoder);
}
