/*
* Copyright 2013 Advanced Micro Devices, Inc.
* Copyright 2014 Rafał Miłecki
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <linux/hdmi.h>
#include <drm/drmP.h>
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_audio.h"
#include "r600d.h"
void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count)
{
struct radeon_device *rdev = encoder->dev->dev_private;
u32 tmp;
/* program the speaker allocation */
tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
/* set HDMI mode */
tmp |= HDMI_CONNECTION;
if (sad_count)
tmp |= SPEAKER_ALLOCATION(sadb[0]);
else
tmp |= SPEAKER_ALLOCATION(5); /* stereo */
WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
}
void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count)
{
struct radeon_device *rdev = encoder->dev->dev_private;
u32 tmp;
/* program the speaker allocation */
tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
/* set DP mode */
tmp |= DP_CONNECTION;
if (sad_count)
tmp |= SPEAKER_ALLOCATION(sadb[0]);
else
tmp |= SPEAKER_ALLOCATION(5); /* stereo */
WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
}
void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count)
{
int i;
struct radeon_device *rdev = encoder->dev->dev_private;
static const u16 eld_reg_to_type[][2] = {
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
{ AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
};
for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
u32 value = 0;
u8 stereo_freqs = 0;
int max_channels = -1;
int j;
for (j = 0; j < sad_count; j++) {
struct cea_sad *sad = &sads[j];
if (sad->format == eld_reg_to_type[i][1]) {
if (sad->channels > max_channels) {
value = MAX_CHANNELS(sad->channels) |
DESCRIPTOR_BYTE_2(sad->byte2) |
SUPPORTED_FREQUENCIES(sad->freq);
max_channels = sad->channels;
}
if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
stereo_freqs |= sad->freq;
else
break;
}
}
value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
WREG32_ENDPOINT(0, eld_reg_to_type[i][0], value);
}
}
void dce3_2_audio_set_dto(struct radeon_device *rdev,
struct radeon_crtc *crtc, unsigned int clock)
{
struct radeon_encoder *radeon_encoder;
struct radeon_encoder_atom_dig *dig;
unsigned int max_ratio = clock / 24000;
u32 dto_phase;
u32 wallclock_ratio;
u32 dto_cntl;
if (!crtc)
return;
radeon_encoder = to_radeon_encoder(crtc->encoder);
dig = radeon_encoder->enc_priv;
if (!dig)
return;
if (max_ratio >= 8) {
dto_phase = 192 * 1000;
wallclock_ratio = 3;
} else if (max_ratio >= 4) {
dto_phase = 96 * 1000;
wallclock_ratio = 2;
} else if (max_ratio >= 2) {
dto_phase = 48 * 1000;
wallclock_ratio = 1;
} else {
dto_phase = 24 * 1000;
wallclock_ratio = 0;
}
/* Express [24MHz / target pixel clock] as an exact rational
* number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
* is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
*/
if (dig->dig_encoder == 0) {
dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
} else {
dto_cntl = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
WREG32(DCCG_AUDIO_DTO1_CNTL, dto_cntl);
WREG32(DCCG_AUDIO_DTO1_PHASE, dto_phase);
WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
}
}
void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
const struct radeon_hdmi_acr *acr)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
HDMI0_ACR_SOURCE | /* select SW CTS value */
HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
WREG32_P(HDMI0_ACR_32_0 + offset,
HDMI0_ACR_CTS_32(acr->cts_32khz),
~HDMI0_ACR_CTS_32_MASK);
WREG32_P(HDMI0_ACR_32_1 + offset,
HDMI0_ACR_N_32(acr->n_32khz),
~HDMI0_ACR_N_32_MASK);
WREG32_P(HDMI0_ACR_44_0 + offset,
HDMI0_ACR_CTS_44(acr->cts_44_1khz),
~HDMI0_ACR_CTS_44_MASK);
WREG32_P(HDMI0_ACR_44_1 + offset,
HDMI0_ACR_N_44(acr->n_44_1khz),
~HDMI0_ACR_N_44_MASK);
WREG32_P(HDMI0_ACR_48_0 + offset,
HDMI0_ACR_CTS_48(acr->cts_48khz),
~HDMI0_ACR_CTS_48_MASK);
WREG32_P(HDMI0_ACR_48_1 + offset,
HDMI0_ACR_N_48(acr->n_48khz),
~HDMI0_ACR_N_48_MASK);
}
/*
* update the info frames with the data from the current display mode
*/
void dce3_1_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mode)
{
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;
u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
struct hdmi_avi_infoframe frame;
uint32_t offset;
ssize_t err;
if (!dig || !dig->afmt)
return;
/* Silent, r600_hdmi_enable will raise WARN for us */
if (!dig->afmt->enabled)
return;
offset = dig->afmt->offset;
/* disable audio prior to setting up hw */
dig->afmt->pin = radeon_audio_get_pin(encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0);
radeon_audio_set_dto(encoder, mode->clock);
WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
HDMI0_NULL_SEND); /* send null packets when required */
WREG32(HDMI0_AUDIO_CRC_CONTROL + offset, 0x1000);
if (ASIC_IS_DCE32(rdev)) {
WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
HDMI0_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
WREG32(AFMT_AUDIO_PACKET_CONTROL + offset,
AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */
AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
} else {
WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */
HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */
HDMI0_AUDIO_PACKETS_PER_LINE(3) | /* should be suffient for all audio modes and small enough for all hblanks */
HDMI0_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */
}
if (ASIC_IS_DCE32(rdev)) {
radeon_audio_write_speaker_allocation(encoder);
radeon_audio_write_sad_regs(encoder);
}
WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
HDMI0_NULL_SEND | /* send null packets when required */
HDMI0_GC_SEND | /* send general control packets */
HDMI0_GC_CONT); /* send general control packets every frame */
/* TODO: HDMI0_AUDIO_INFO_UPDATE */
WREG32(HDMI0_INFOFRAME_CONTROL0 + offset,
HDMI0_AVI_INFO_SEND | /* enable AVI info frames */
HDMI0_AVI_INFO_CONT | /* send AVI info frames every frame/field */
HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */
WREG32(HDMI0_INFOFRAME_CONTROL1 + offset,
HDMI0_AVI_INFO_LINE(2) | /* anything other than 0 */
HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */
WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */
err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
if (err < 0) {
DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
return;
}
err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
DRM_ERROR("failed to pack AVI infoframe: %zd\n", err);
return;
}
radeon_update_avi_infoframe(encoder, buffer, sizeof(buffer));
radeon_audio_update_acr(encoder, mode->clock);
/* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */
WREG32(HDMI0_RAMP_CONTROL0 + offset, 0x00FFFFFF);
WREG32(HDMI0_RAMP_CONTROL1 + offset, 0x007FFFFF);
WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001);
WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001);
r600_hdmi_audio_workaround(encoder);
/* enable audio after to setting up hw */
radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
}
