/*
* Copyright 2013 Advanced Micro Devices, Inc.
*
* 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_audio.h"
#include "sid.h"
#define DCE8_DCCG_AUDIO_DTO1_PHASE 0x05b8
#define DCE8_DCCG_AUDIO_DTO1_MODULE 0x05bc
u32 dce6_endpoint_rreg(struct radeon_device *rdev,
u32 block_offset, u32 reg)
{
unsigned long flags;
u32 r;
spin_lock_irqsave(&rdev->end_idx_lock, flags);
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset);
spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
return r;
}
void dce6_endpoint_wreg(struct radeon_device *rdev,
u32 block_offset, u32 reg, u32 v)
{
unsigned long flags;
spin_lock_irqsave(&rdev->end_idx_lock, flags);
if (ASIC_IS_DCE8(rdev))
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
else
WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset,
AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg));
WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v);
spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
}
static void dce6_afmt_get_connected_pins(struct radeon_device *rdev)
{
int i;
u32 offset, tmp;
for (i = 0; i < rdev->audio.num_pins; i++) {
offset = rdev->audio.pin[i].offset;
tmp = RREG32_ENDPOINT(offset,
AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1)
rdev->audio.pin[i].connected = false;
else
rdev->audio.pin[i].connected = true;
}
}
struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev)
{
struct drm_encoder *encoder;
struct radeon_encoder *radeon_encoder;
struct radeon_encoder_atom_dig *dig;
struct r600_audio_pin *pin = NULL;
int i, pin_count;
dce6_afmt_get_connected_pins(rdev);
for (i = 0; i < rdev->audio.num_pins; i++) {
if (rdev->audio.pin[i].connected) {
pin = &rdev->audio.pin[i];
pin_count = 0;
list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) {
if (radeon_encoder_is_digital(encoder)) {
radeon_encoder = to_radeon_encoder(encoder);
dig = radeon_encoder->enc_priv;
if (dig->pin == pin)
pin_count++;
}
}
if (pin_count == 0)
return pin;
}
}
if (!pin)
DRM_ERROR("No connected audio pins found!\n");
return pin;
}
void dce6_afmt_select_pin(struct drm_encoder *encoder)
{
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;
if (!dig || !dig->afmt || !dig->pin)
return;
WREG32(AFMT_AUDIO_SRC_CONTROL + dig->afmt->offset,
AFMT_AUDIO_SRC_SELECT(dig->pin->id));
}
void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
struct drm_connector *connector,
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;
u32 tmp = 0;
if (!dig || !dig->afmt || !dig->pin)
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(0) | AUDIO_LIPSYNC(0);
} else {
if (connector->latency_present[0])
tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
AUDIO_LIPSYNC(connector->audio_latency[0]);
else
tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
}
WREG32_ENDPOINT(dig->pin->offset,
AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
}
void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count)
{
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;
u32 tmp;
if (!dig || !dig->afmt || !dig->pin)
return;
/* program the speaker allocation */
tmp = RREG32_ENDPOINT(dig->pin->offset,
AZ_F0_CODEC_PIN_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(dig->pin->offset,
AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
}
void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
u8 *sadb, int sad_count)
{
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;
u32 tmp;
if (!dig || !dig->afmt || !dig->pin)
return;
/* program the speaker allocation */
tmp = RREG32_ENDPOINT(dig->pin->offset,
AZ_F0_CODEC_PIN_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(dig->pin->offset,
AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
}
void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
struct cea_sad *sads, int sad_count)
{
int i;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct radeon_device *rdev = encoder->dev->dev_private;
static const u16 eld_reg_to_type[][2] = {
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
{ AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
};
if (!dig || !dig->afmt || !dig->pin)
return;
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(dig->pin->offset, eld_reg_to_type[i][0], value);
}
}
void dce6_audio_enable(struct radeon_device *rdev,
struct r600_audio_pin *pin,
u8 enable_mask)
{
if (!pin)
return;
WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
enable_mask ? AUDIO_ENABLED : 0);
}
void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
struct radeon_crtc *crtc, unsigned int clock)
{
/* Two dtos; generally use dto0 for HDMI */
u32 value = 0;
if (crtc)
value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
WREG32(DCCG_AUDIO_DTO_SOURCE, value);
/* 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
*/
WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
}
void dce6_dp_audio_set_dto(struct radeon_device *rdev,
struct radeon_crtc *crtc, unsigned int clock)
{
/* Two dtos; generally use dto1 for DP */
u32 value = 0;
value |= DCCG_AUDIO_DTO_SEL;
if (crtc)
value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
WREG32(DCCG_AUDIO_DTO_SOURCE, value);
/* 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 (ASIC_IS_DCE8(rdev)) {
unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) &
DENTIST_DPREFCLK_WDIVIDER_MASK) >>
DENTIST_DPREFCLK_WDIVIDER_SHIFT;
div = radeon_audio_decode_dfs_div(div);
if (div)
clock = clock * 100 / div;
WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000);
WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock);
} else {
WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
}
}
