1 /* 2 * Copyright 2013 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 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 "sid.h" 29 30 #define DCE8_DCCG_AUDIO_DTO1_PHASE 0x05b8 31 #define DCE8_DCCG_AUDIO_DTO1_MODULE 0x05bc 32 33 u32 dce6_endpoint_rreg(struct radeon_device *rdev, 34 u32 block_offset, u32 reg) 35 { 36 unsigned long flags; 37 u32 r; 38 39 spin_lock_irqsave(&rdev->end_idx_lock, flags); 40 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); 41 r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset); 42 spin_unlock_irqrestore(&rdev->end_idx_lock, flags); 43 44 return r; 45 } 46 47 void dce6_endpoint_wreg(struct radeon_device *rdev, 48 u32 block_offset, u32 reg, u32 v) 49 { 50 unsigned long flags; 51 52 spin_lock_irqsave(&rdev->end_idx_lock, flags); 53 if (ASIC_IS_DCE8(rdev)) 54 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); 55 else 56 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, 57 AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg)); 58 WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v); 59 spin_unlock_irqrestore(&rdev->end_idx_lock, flags); 60 } 61 62 static void dce6_afmt_get_connected_pins(struct radeon_device *rdev) 63 { 64 int i; 65 u32 offset, tmp; 66 67 for (i = 0; i < rdev->audio.num_pins; i++) { 68 offset = rdev->audio.pin[i].offset; 69 tmp = RREG32_ENDPOINT(offset, 70 AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT); 71 if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1) 72 rdev->audio.pin[i].connected = false; 73 else 74 rdev->audio.pin[i].connected = true; 75 } 76 } 77 78 struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev) 79 { 80 struct drm_encoder *encoder; 81 struct radeon_encoder *radeon_encoder; 82 struct radeon_encoder_atom_dig *dig; 83 struct r600_audio_pin *pin = NULL; 84 int i, pin_count; 85 86 dce6_afmt_get_connected_pins(rdev); 87 88 for (i = 0; i < rdev->audio.num_pins; i++) { 89 if (rdev->audio.pin[i].connected) { 90 pin = &rdev->audio.pin[i]; 91 pin_count = 0; 92 93 list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) { 94 if (radeon_encoder_is_digital(encoder)) { 95 radeon_encoder = to_radeon_encoder(encoder); 96 dig = radeon_encoder->enc_priv; 97 if (dig->pin == pin) 98 pin_count++; 99 } 100 } 101 102 if (pin_count == 0) 103 return pin; 104 } 105 } 106 if (!pin) 107 DRM_ERROR("No connected audio pins found!\n"); 108 return pin; 109 } 110 111 void dce6_afmt_select_pin(struct drm_encoder *encoder) 112 { 113 struct radeon_device *rdev = encoder->dev->dev_private; 114 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 115 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 116 117 if (!dig || !dig->afmt || !dig->pin) 118 return; 119 120 WREG32(AFMT_AUDIO_SRC_CONTROL + dig->afmt->offset, 121 AFMT_AUDIO_SRC_SELECT(dig->pin->id)); 122 } 123 124 void dce6_afmt_write_latency_fields(struct drm_encoder *encoder, 125 struct drm_connector *connector, 126 struct drm_display_mode *mode) 127 { 128 struct radeon_device *rdev = encoder->dev->dev_private; 129 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 130 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 131 u32 tmp = 0; 132 133 if (!dig || !dig->afmt || !dig->pin) 134 return; 135 136 if (mode->flags & DRM_MODE_FLAG_INTERLACE) { 137 if (connector->latency_present[1]) 138 tmp = VIDEO_LIPSYNC(connector->video_latency[1]) | 139 AUDIO_LIPSYNC(connector->audio_latency[1]); 140 else 141 tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0); 142 } else { 143 if (connector->latency_present[0]) 144 tmp = VIDEO_LIPSYNC(connector->video_latency[0]) | 145 AUDIO_LIPSYNC(connector->audio_latency[0]); 146 else 147 tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0); 148 } 149 WREG32_ENDPOINT(dig->pin->offset, 150 AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp); 151 } 152 153 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, 154 u8 *sadb, int sad_count) 155 { 156 struct radeon_device *rdev = encoder->dev->dev_private; 157 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 158 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 159 u32 tmp; 160 161 if (!dig || !dig->afmt || !dig->pin) 162 return; 163 164 /* program the speaker allocation */ 165 tmp = RREG32_ENDPOINT(dig->pin->offset, 166 AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER); 167 tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK); 168 /* set HDMI mode */ 169 tmp |= HDMI_CONNECTION; 170 if (sad_count) 171 tmp |= SPEAKER_ALLOCATION(sadb[0]); 172 else 173 tmp |= SPEAKER_ALLOCATION(5); /* stereo */ 174 WREG32_ENDPOINT(dig->pin->offset, 175 AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp); 176 } 177 178 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, 179 u8 *sadb, int sad_count) 180 { 181 struct radeon_device *rdev = encoder->dev->dev_private; 182 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 183 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 184 u32 tmp; 185 186 if (!dig || !dig->afmt || !dig->pin) 187 return; 188 189 /* program the speaker allocation */ 190 tmp = RREG32_ENDPOINT(dig->pin->offset, 191 AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER); 192 tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK); 193 /* set DP mode */ 194 tmp |= DP_CONNECTION; 195 if (sad_count) 196 tmp |= SPEAKER_ALLOCATION(sadb[0]); 197 else 198 tmp |= SPEAKER_ALLOCATION(5); /* stereo */ 199 WREG32_ENDPOINT(dig->pin->offset, 200 AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp); 201 } 202 203 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder, 204 struct cea_sad *sads, int sad_count) 205 { 206 int i; 207 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 208 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 209 struct radeon_device *rdev = encoder->dev->dev_private; 210 static const u16 eld_reg_to_type[][2] = { 211 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM }, 212 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 }, 213 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 }, 214 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 }, 215 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 }, 216 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC }, 217 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS }, 218 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC }, 219 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 }, 220 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD }, 221 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP }, 222 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO }, 223 }; 224 225 if (!dig || !dig->afmt || !dig->pin) 226 return; 227 228 for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) { 229 u32 value = 0; 230 u8 stereo_freqs = 0; 231 int max_channels = -1; 232 int j; 233 234 for (j = 0; j < sad_count; j++) { 235 struct cea_sad *sad = &sads[j]; 236 237 if (sad->format == eld_reg_to_type[i][1]) { 238 if (sad->channels > max_channels) { 239 value = MAX_CHANNELS(sad->channels) | 240 DESCRIPTOR_BYTE_2(sad->byte2) | 241 SUPPORTED_FREQUENCIES(sad->freq); 242 max_channels = sad->channels; 243 } 244 245 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM) 246 stereo_freqs |= sad->freq; 247 else 248 break; 249 } 250 } 251 252 value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs); 253 254 WREG32_ENDPOINT(dig->pin->offset, eld_reg_to_type[i][0], value); 255 } 256 } 257 258 void dce6_audio_enable(struct radeon_device *rdev, 259 struct r600_audio_pin *pin, 260 u8 enable_mask) 261 { 262 if (!pin) 263 return; 264 265 WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, 266 enable_mask ? AUDIO_ENABLED : 0); 267 } 268 269 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev, 270 struct radeon_crtc *crtc, unsigned int clock) 271 { 272 /* Two dtos; generally use dto0 for HDMI */ 273 u32 value = 0; 274 275 if (crtc) 276 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id); 277 278 WREG32(DCCG_AUDIO_DTO_SOURCE, value); 279 280 /* Express [24MHz / target pixel clock] as an exact rational 281 * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE 282 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator 283 */ 284 WREG32(DCCG_AUDIO_DTO0_PHASE, 24000); 285 WREG32(DCCG_AUDIO_DTO0_MODULE, clock); 286 } 287 288 void dce6_dp_audio_set_dto(struct radeon_device *rdev, 289 struct radeon_crtc *crtc, unsigned int clock) 290 { 291 /* Two dtos; generally use dto1 for DP */ 292 u32 value = 0; 293 value |= DCCG_AUDIO_DTO_SEL; 294 295 if (crtc) 296 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id); 297 298 WREG32(DCCG_AUDIO_DTO_SOURCE, value); 299 300 /* Express [24MHz / target pixel clock] as an exact rational 301 * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE 302 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator 303 */ 304 if (ASIC_IS_DCE8(rdev)) { 305 unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) & 306 DENTIST_DPREFCLK_WDIVIDER_MASK) >> 307 DENTIST_DPREFCLK_WDIVIDER_SHIFT; 308 div = radeon_audio_decode_dfs_div(div); 309 310 if (div) 311 clock = clock * 100 / div; 312 313 WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000); 314 WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock); 315 } else { 316 WREG32(DCCG_AUDIO_DTO1_PHASE, 24000); 317 WREG32(DCCG_AUDIO_DTO1_MODULE, clock); 318 } 319 } 320