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 "r600d.h" 28 29 static void dce3_2_afmt_write_speaker_allocation(struct drm_encoder *encoder) 30 { 31 struct radeon_device *rdev = encoder->dev->dev_private; 32 struct drm_connector *connector; 33 struct radeon_connector *radeon_connector = NULL; 34 u32 tmp; 35 u8 *sadb = NULL; 36 int sad_count; 37 38 list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) { 39 if (connector->encoder == encoder) { 40 radeon_connector = to_radeon_connector(connector); 41 break; 42 } 43 } 44 45 if (!radeon_connector) { 46 DRM_ERROR("Couldn't find encoder's connector\n"); 47 return; 48 } 49 50 sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb); 51 if (sad_count < 0) { 52 DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n", sad_count); 53 sad_count = 0; 54 } 55 56 /* program the speaker allocation */ 57 tmp = RREG32(AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER); 58 tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK); 59 /* set HDMI mode */ 60 tmp |= HDMI_CONNECTION; 61 if (sad_count) 62 tmp |= SPEAKER_ALLOCATION(sadb[0]); 63 else 64 tmp |= SPEAKER_ALLOCATION(5); /* stereo */ 65 WREG32(AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp); 66 67 kfree(sadb); 68 } 69 70 static void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder) 71 { 72 struct radeon_device *rdev = encoder->dev->dev_private; 73 struct drm_connector *connector; 74 struct radeon_connector *radeon_connector = NULL; 75 struct cea_sad *sads; 76 int i, sad_count; 77 78 static const u16 eld_reg_to_type[][2] = { 79 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM }, 80 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 }, 81 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 }, 82 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 }, 83 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 }, 84 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC }, 85 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS }, 86 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC }, 87 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 }, 88 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD }, 89 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP }, 90 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO }, 91 }; 92 93 list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) { 94 if (connector->encoder == encoder) { 95 radeon_connector = to_radeon_connector(connector); 96 break; 97 } 98 } 99 100 if (!radeon_connector) { 101 DRM_ERROR("Couldn't find encoder's connector\n"); 102 return; 103 } 104 105 sad_count = drm_edid_to_sad(radeon_connector->edid, &sads); 106 if (sad_count < 0) { 107 DRM_ERROR("Couldn't read SADs: %d\n", sad_count); 108 return; 109 } 110 BUG_ON(!sads); 111 112 for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) { 113 u32 value = 0; 114 u8 stereo_freqs = 0; 115 int max_channels = -1; 116 int j; 117 118 for (j = 0; j < sad_count; j++) { 119 struct cea_sad *sad = &sads[j]; 120 121 if (sad->format == eld_reg_to_type[i][1]) { 122 if (sad->channels > max_channels) { 123 value = MAX_CHANNELS(sad->channels) | 124 DESCRIPTOR_BYTE_2(sad->byte2) | 125 SUPPORTED_FREQUENCIES(sad->freq); 126 max_channels = sad->channels; 127 } 128 129 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM) 130 stereo_freqs |= sad->freq; 131 else 132 break; 133 } 134 } 135 136 value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs); 137 138 WREG32(eld_reg_to_type[i][0], value); 139 } 140 141 kfree(sads); 142 } 143 144 /* 145 * update the info frames with the data from the current display mode 146 */ 147 void dce3_1_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mode) 148 { 149 struct drm_device *dev = encoder->dev; 150 struct radeon_device *rdev = dev->dev_private; 151 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 152 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 153 u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; 154 struct hdmi_avi_infoframe frame; 155 uint32_t offset; 156 ssize_t err; 157 158 if (!dig || !dig->afmt) 159 return; 160 161 /* Silent, r600_hdmi_enable will raise WARN for us */ 162 if (!dig->afmt->enabled) 163 return; 164 offset = dig->afmt->offset; 165 166 /* disable audio prior to setting up hw */ 167 dig->afmt->pin = r600_audio_get_pin(rdev); 168 r600_audio_enable(rdev, dig->afmt->pin, 0); 169 170 r600_audio_set_dto(encoder, mode->clock); 171 172 WREG32(HDMI0_VBI_PACKET_CONTROL + offset, 173 HDMI0_NULL_SEND); /* send null packets when required */ 174 175 WREG32(HDMI0_AUDIO_CRC_CONTROL + offset, 0x1000); 176 177 if (ASIC_IS_DCE32(rdev)) { 178 WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset, 179 HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */ 180 HDMI0_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */ 181 WREG32(AFMT_AUDIO_PACKET_CONTROL + offset, 182 AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */ 183 AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */ 184 } else { 185 WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset, 186 HDMI0_AUDIO_SAMPLE_SEND | /* send audio packets */ 187 HDMI0_AUDIO_DELAY_EN(1) | /* default audio delay */ 188 HDMI0_AUDIO_PACKETS_PER_LINE(3) | /* should be suffient for all audio modes and small enough for all hblanks */ 189 HDMI0_60958_CS_UPDATE); /* allow 60958 channel status fields to be updated */ 190 } 191 192 if (ASIC_IS_DCE32(rdev)) { 193 dce3_2_afmt_write_speaker_allocation(encoder); 194 dce3_2_afmt_write_sad_regs(encoder); 195 } 196 197 WREG32(HDMI0_ACR_PACKET_CONTROL + offset, 198 HDMI0_ACR_SOURCE | /* select SW CTS value - XXX verify that hw CTS works on all families */ 199 HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */ 200 201 WREG32(HDMI0_VBI_PACKET_CONTROL + offset, 202 HDMI0_NULL_SEND | /* send null packets when required */ 203 HDMI0_GC_SEND | /* send general control packets */ 204 HDMI0_GC_CONT); /* send general control packets every frame */ 205 206 /* TODO: HDMI0_AUDIO_INFO_UPDATE */ 207 WREG32(HDMI0_INFOFRAME_CONTROL0 + offset, 208 HDMI0_AVI_INFO_SEND | /* enable AVI info frames */ 209 HDMI0_AVI_INFO_CONT | /* send AVI info frames every frame/field */ 210 HDMI0_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */ 211 HDMI0_AUDIO_INFO_CONT); /* send audio info frames every frame/field */ 212 213 WREG32(HDMI0_INFOFRAME_CONTROL1 + offset, 214 HDMI0_AVI_INFO_LINE(2) | /* anything other than 0 */ 215 HDMI0_AUDIO_INFO_LINE(2)); /* anything other than 0 */ 216 217 WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */ 218 219 err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); 220 if (err < 0) { 221 DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); 222 return; 223 } 224 225 err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); 226 if (err < 0) { 227 DRM_ERROR("failed to pack AVI infoframe: %zd\n", err); 228 return; 229 } 230 231 r600_hdmi_update_avi_infoframe(encoder, buffer, sizeof(buffer)); 232 r600_hdmi_update_ACR(encoder, mode->clock); 233 234 /* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */ 235 WREG32(HDMI0_RAMP_CONTROL0 + offset, 0x00FFFFFF); 236 WREG32(HDMI0_RAMP_CONTROL1 + offset, 0x007FFFFF); 237 WREG32(HDMI0_RAMP_CONTROL2 + offset, 0x00000001); 238 WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001); 239 240 r600_hdmi_audio_workaround(encoder); 241 242 /* enable audio after to setting up hw */ 243 r600_audio_enable(rdev, dig->afmt->pin, 0xf); 244 } 245