LXR linux/drivers/gpu/drm/radeon/dce3_1

   1/*
   2 * Copyright 2013 Advanced Micro Devices, Inc.
   3 * Copyright 2014 Rafał Miłecki
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 */
  23#include <linux/hdmi.h>
  24#include <drm/drmP.h>
  25#include "radeon.h"
  26#include "radeon_asic.h"
  27#include "radeon_audio.h"
  28#include "r600d.h"
  29
  30void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
  31        u8 *sadb, int sad_count)
  32{
  33        struct radeon_device *rdev = encoder->dev->dev_private;
  34        u32 tmp;
  35
  36        /* program the speaker allocation */
  37        tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
  38        tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
  39        /* set HDMI mode */
  40        tmp |= HDMI_CONNECTION;
  41        if (sad_count)
  42                tmp |= SPEAKER_ALLOCATION(sadb[0]);
  43        else
  44                tmp |= SPEAKER_ALLOCATION(5); /* stereo */
  45        WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
  46}
  47
  48void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
  49        u8 *sadb, int sad_count)
  50{
  51        struct radeon_device *rdev = encoder->dev->dev_private;
  52        u32 tmp;
  53
  54        /* program the speaker allocation */
  55        tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
  56        tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
  57        /* set DP mode */
  58        tmp |= DP_CONNECTION;
  59        if (sad_count)
  60                tmp |= SPEAKER_ALLOCATION(sadb[0]);
  61        else
  62                tmp |= SPEAKER_ALLOCATION(5); /* stereo */
  63        WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
  64}
  65
  66void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
  67        struct cea_sad *sads, int sad_count)
  68{
  69        int i;
  70        struct radeon_device *rdev = encoder->dev->dev_private;
  71        static const u16 eld_reg_to_type[][2] = {
  72                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
  73                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
  74                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
  75                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
  76                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
  77                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
  78                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
  79                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
  80                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
  81                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
  82                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
  83                { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
  84        };
  85
  86        for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
  87                u32 value = 0;
  88                u8 stereo_freqs = 0;
  89                int max_channels = -1;
  90                int j;
  91
  92                for (j = 0; j < sad_count; j++) {
  93                        struct cea_sad *sad = &sads[j];
  94
  95                        if (sad->format == eld_reg_to_type[i][1]) {
  96                                if (sad->channels > max_channels) {
  97                                        value = MAX_CHANNELS(sad->channels) |
  98                                                DESCRIPTOR_BYTE_2(sad->byte2) |
  99                                                SUPPORTED_FREQUENCIES(sad->freq);
 100                                        max_channels = sad->channels;
 101                                }
 102
 103                                if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
 104                                        stereo_freqs |= sad->freq;
 105                                else
 106                                        break;
 107                        }
 108                }
 109
 110                value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
 111
 112                WREG32_ENDPOINT(0, eld_reg_to_type[i][0], value);
 113        }
 114}
 115
 116void dce3_2_audio_set_dto(struct radeon_device *rdev,
 117        struct radeon_crtc *crtc, unsigned int clock)
 118{
 119        struct radeon_encoder *radeon_encoder;
 120        struct radeon_encoder_atom_dig *dig;
 121        unsigned int max_ratio = clock / 24000;
 122        u32 dto_phase;
 123        u32 wallclock_ratio;
 124        u32 dto_cntl;
 125
 126        if (!crtc)
 127                return;
 128
 129        radeon_encoder = to_radeon_encoder(crtc->encoder);
 130        dig = radeon_encoder->enc_priv;
 131
 132        if (!dig)
 133                return;
 134
 135        if (max_ratio >= 8) {
 136                dto_phase = 192 * 1000;
 137                wallclock_ratio = 3;
 138        } else if (max_ratio >= 4) {
 139                dto_phase = 96 * 1000;
 140                wallclock_ratio = 2;
 141        } else if (max_ratio >= 2) {
 142                dto_phase = 48 * 1000;
 143                wallclock_ratio = 1;
 144        } else {
 145                dto_phase = 24 * 1000;
 146                wallclock_ratio = 0;
 147        }
 148
 149        /* Express [24MHz / target pixel clock] as an exact rational
 150         * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 151         * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 152         */
 153        if (dig->dig_encoder == 0) {
 154                dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
 155                dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
 156                WREG32(DCCG_AUDIO_DTO0_CNTL, dto_cntl);
 157                WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
 158                WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
 159                WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
 160        } else {
 161                dto_cntl = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
 162                dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
 163                WREG32(DCCG_AUDIO_DTO1_CNTL, dto_cntl);
 164                WREG32(DCCG_AUDIO_DTO1_PHASE, dto_phase);
 165                WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 166                WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
 167        }
 168}
 169
 170void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
 171        const struct radeon_hdmi_acr *acr)
 172{
 173        struct drm_device *dev = encoder->dev;
 174        struct radeon_device *rdev = dev->dev_private;
 175
 176        WREG32(DCE3_HDMI0_ACR_PACKET_CONTROL + offset,
 177                HDMI0_ACR_SOURCE |              /* select SW CTS value */
 178                HDMI0_ACR_AUTO_SEND);   /* allow hw to sent ACR packets when required */
 179
 180        WREG32_P(HDMI0_ACR_32_0 + offset,
 181                HDMI0_ACR_CTS_32(acr->cts_32khz),
 182                ~HDMI0_ACR_CTS_32_MASK);
 183        WREG32_P(HDMI0_ACR_32_1 + offset,
 184                HDMI0_ACR_N_32(acr->n_32khz),
 185                ~HDMI0_ACR_N_32_MASK);
 186
 187        WREG32_P(HDMI0_ACR_44_0 + offset,
 188                HDMI0_ACR_CTS_44(acr->cts_44_1khz),
 189                ~HDMI0_ACR_CTS_44_MASK);
 190        WREG32_P(HDMI0_ACR_44_1 + offset,
 191                HDMI0_ACR_N_44(acr->n_44_1khz),
 192                ~HDMI0_ACR_N_44_MASK);
 193
 194        WREG32_P(HDMI0_ACR_48_0 + offset,
 195                HDMI0_ACR_CTS_48(acr->cts_48khz),
 196                ~HDMI0_ACR_CTS_48_MASK);
 197        WREG32_P(HDMI0_ACR_48_1 + offset,
 198                HDMI0_ACR_N_48(acr->n_48khz),
 199                ~HDMI0_ACR_N_48_MASK);
 200}
 201
 202void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 203{
 204        struct drm_device *dev = encoder->dev;
 205        struct radeon_device *rdev = dev->dev_private;
 206
 207        WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
 208                HDMI0_AUDIO_DELAY_EN(1) |                       /* default audio delay */
 209                HDMI0_AUDIO_PACKETS_PER_LINE(3));       /* should be suffient for all audio modes and small enough for all hblanks */
 210
 211        WREG32(AFMT_AUDIO_PACKET_CONTROL + offset,
 212                AFMT_AUDIO_SAMPLE_SEND |                        /* send audio packets */
 213                AFMT_60958_CS_UPDATE);                          /* allow 60958 channel status fields to be updated */
 214
 215        WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
 216                HDMI0_AUDIO_INFO_SEND |                         /* enable audio info frames (frames won't be set until audio is enabled) */
 217                HDMI0_AUDIO_INFO_CONT);                         /* send audio info frames every frame/field */
 218
 219        WREG32_OR(HDMI0_INFOFRAME_CONTROL1 + offset,
 220                HDMI0_AUDIO_INFO_LINE(2));                      /* anything other than 0 */
 221}
 222
 223void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
 224{
 225        struct drm_device *dev = encoder->dev;
 226        struct radeon_device *rdev = dev->dev_private;
 227
 228        if (mute)
 229                WREG32_OR(HDMI0_GC + offset, HDMI0_GC_AVMUTE);
 230        else
 231                WREG32_AND(HDMI0_GC + offset, ~HDMI0_GC_AVMUTE);
 232}
 233