Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 1 | /* |
| 2 | * ALSA SoC codec for HDMI encoder drivers |
| 3 | * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ |
| 4 | * Author: Jyri Sarha <jsarha@ti.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * version 2 as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | */ |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/string.h> |
| 17 | #include <sound/core.h> |
| 18 | #include <sound/pcm.h> |
| 19 | #include <sound/pcm_params.h> |
| 20 | #include <sound/soc.h> |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 21 | #include <sound/tlv.h> |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 22 | #include <sound/pcm_drm_eld.h> |
| 23 | #include <sound/hdmi-codec.h> |
| 24 | #include <sound/pcm_iec958.h> |
| 25 | |
| 26 | #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ |
| 27 | |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 28 | struct hdmi_device { |
| 29 | struct device *dev; |
| 30 | struct list_head list; |
| 31 | int cnt; |
| 32 | }; |
| 33 | #define pos_to_hdmi_device(pos) container_of((pos), struct hdmi_device, list) |
| 34 | LIST_HEAD(hdmi_device_list); |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 35 | static DEFINE_MUTEX(hdmi_mutex); |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 36 | |
| 37 | #define DAI_NAME_SIZE 16 |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 38 | |
| 39 | #define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 |
| 40 | |
| 41 | struct hdmi_codec_channel_map_table { |
| 42 | unsigned char map; /* ALSA API channel map position */ |
| 43 | unsigned long spk_mask; /* speaker position bit mask */ |
| 44 | }; |
| 45 | |
| 46 | /* |
| 47 | * CEA speaker placement for HDMI 1.4: |
| 48 | * |
| 49 | * FL FLC FC FRC FR FRW |
| 50 | * |
| 51 | * LFE |
| 52 | * |
| 53 | * RL RLC RC RRC RR |
| 54 | * |
| 55 | * Speaker placement has to be extended to support HDMI 2.0 |
| 56 | */ |
| 57 | enum hdmi_codec_cea_spk_placement { |
| 58 | FL = BIT(0), /* Front Left */ |
| 59 | FC = BIT(1), /* Front Center */ |
| 60 | FR = BIT(2), /* Front Right */ |
| 61 | FLC = BIT(3), /* Front Left Center */ |
| 62 | FRC = BIT(4), /* Front Right Center */ |
| 63 | RL = BIT(5), /* Rear Left */ |
| 64 | RC = BIT(6), /* Rear Center */ |
| 65 | RR = BIT(7), /* Rear Right */ |
| 66 | RLC = BIT(8), /* Rear Left Center */ |
| 67 | RRC = BIT(9), /* Rear Right Center */ |
| 68 | LFE = BIT(10), /* Low Frequency Effect */ |
| 69 | }; |
| 70 | |
| 71 | /* |
| 72 | * cea Speaker allocation structure |
| 73 | */ |
| 74 | struct hdmi_codec_cea_spk_alloc { |
| 75 | const int ca_id; |
| 76 | unsigned int n_ch; |
| 77 | unsigned long mask; |
| 78 | }; |
| 79 | |
| 80 | /* Channel maps stereo HDMI */ |
| 81 | const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { |
| 82 | { .channels = 2, |
| 83 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, |
| 84 | { } |
| 85 | }; |
| 86 | |
| 87 | /* Channel maps for multi-channel playbacks, up to 8 n_ch */ |
| 88 | const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { |
| 89 | { .channels = 2, /* CA_ID 0x00 */ |
| 90 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, |
| 91 | { .channels = 4, /* CA_ID 0x01 */ |
| 92 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 93 | SNDRV_CHMAP_NA } }, |
| 94 | { .channels = 4, /* CA_ID 0x02 */ |
| 95 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 96 | SNDRV_CHMAP_FC } }, |
| 97 | { .channels = 4, /* CA_ID 0x03 */ |
| 98 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 99 | SNDRV_CHMAP_FC } }, |
| 100 | { .channels = 6, /* CA_ID 0x04 */ |
| 101 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 102 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 103 | { .channels = 6, /* CA_ID 0x05 */ |
| 104 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 105 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 106 | { .channels = 6, /* CA_ID 0x06 */ |
| 107 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 108 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 109 | { .channels = 6, /* CA_ID 0x07 */ |
| 110 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 111 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 112 | { .channels = 6, /* CA_ID 0x08 */ |
| 113 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 114 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
| 115 | { .channels = 6, /* CA_ID 0x09 */ |
| 116 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 117 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
| 118 | { .channels = 6, /* CA_ID 0x0A */ |
| 119 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 120 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
| 121 | { .channels = 6, /* CA_ID 0x0B */ |
| 122 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 123 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
| 124 | { .channels = 8, /* CA_ID 0x0C */ |
| 125 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 126 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 127 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 128 | { .channels = 8, /* CA_ID 0x0D */ |
| 129 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 130 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 131 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 132 | { .channels = 8, /* CA_ID 0x0E */ |
| 133 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 134 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 135 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 136 | { .channels = 8, /* CA_ID 0x0F */ |
| 137 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 138 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 139 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
| 140 | { .channels = 8, /* CA_ID 0x10 */ |
| 141 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 142 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 143 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
| 144 | { .channels = 8, /* CA_ID 0x11 */ |
| 145 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 146 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 147 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
| 148 | { .channels = 8, /* CA_ID 0x12 */ |
| 149 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 150 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 151 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
| 152 | { .channels = 8, /* CA_ID 0x13 */ |
| 153 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 154 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
| 155 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
| 156 | { .channels = 8, /* CA_ID 0x14 */ |
| 157 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 158 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 159 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 160 | { .channels = 8, /* CA_ID 0x15 */ |
| 161 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 162 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 163 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 164 | { .channels = 8, /* CA_ID 0x16 */ |
| 165 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 166 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 167 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 168 | { .channels = 8, /* CA_ID 0x17 */ |
| 169 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 170 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 171 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 172 | { .channels = 8, /* CA_ID 0x18 */ |
| 173 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 174 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 175 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 176 | { .channels = 8, /* CA_ID 0x19 */ |
| 177 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 178 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 179 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 180 | { .channels = 8, /* CA_ID 0x1A */ |
| 181 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 182 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 183 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 184 | { .channels = 8, /* CA_ID 0x1B */ |
| 185 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 186 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 187 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 188 | { .channels = 8, /* CA_ID 0x1C */ |
| 189 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 190 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 191 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 192 | { .channels = 8, /* CA_ID 0x1D */ |
| 193 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 194 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 195 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 196 | { .channels = 8, /* CA_ID 0x1E */ |
| 197 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
| 198 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 199 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 200 | { .channels = 8, /* CA_ID 0x1F */ |
| 201 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
| 202 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
| 203 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
| 204 | { } |
| 205 | }; |
| 206 | |
| 207 | /* |
| 208 | * hdmi_codec_channel_alloc: speaker configuration available for CEA |
| 209 | * |
| 210 | * This is an ordered list that must match with hdmi_codec_8ch_chmaps struct |
| 211 | * The preceding ones have better chances to be selected by |
| 212 | * hdmi_codec_get_ch_alloc_table_idx(). |
| 213 | */ |
| 214 | static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { |
| 215 | { .ca_id = 0x00, .n_ch = 2, |
| 216 | .mask = FL | FR}, |
| 217 | /* 2.1 */ |
| 218 | { .ca_id = 0x01, .n_ch = 4, |
| 219 | .mask = FL | FR | LFE}, |
| 220 | /* Dolby Surround */ |
| 221 | { .ca_id = 0x02, .n_ch = 4, |
| 222 | .mask = FL | FR | FC }, |
| 223 | /* surround51 */ |
| 224 | { .ca_id = 0x0b, .n_ch = 6, |
| 225 | .mask = FL | FR | LFE | FC | RL | RR}, |
| 226 | /* surround40 */ |
| 227 | { .ca_id = 0x08, .n_ch = 6, |
| 228 | .mask = FL | FR | RL | RR }, |
| 229 | /* surround41 */ |
| 230 | { .ca_id = 0x09, .n_ch = 6, |
| 231 | .mask = FL | FR | LFE | RL | RR }, |
| 232 | /* surround50 */ |
| 233 | { .ca_id = 0x0a, .n_ch = 6, |
| 234 | .mask = FL | FR | FC | RL | RR }, |
| 235 | /* 6.1 */ |
| 236 | { .ca_id = 0x0f, .n_ch = 8, |
| 237 | .mask = FL | FR | LFE | FC | RL | RR | RC }, |
| 238 | /* surround71 */ |
| 239 | { .ca_id = 0x13, .n_ch = 8, |
| 240 | .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, |
| 241 | /* others */ |
| 242 | { .ca_id = 0x03, .n_ch = 8, |
| 243 | .mask = FL | FR | LFE | FC }, |
| 244 | { .ca_id = 0x04, .n_ch = 8, |
| 245 | .mask = FL | FR | RC}, |
| 246 | { .ca_id = 0x05, .n_ch = 8, |
| 247 | .mask = FL | FR | LFE | RC }, |
| 248 | { .ca_id = 0x06, .n_ch = 8, |
| 249 | .mask = FL | FR | FC | RC }, |
| 250 | { .ca_id = 0x07, .n_ch = 8, |
| 251 | .mask = FL | FR | LFE | FC | RC }, |
| 252 | { .ca_id = 0x0c, .n_ch = 8, |
| 253 | .mask = FL | FR | RC | RL | RR }, |
| 254 | { .ca_id = 0x0d, .n_ch = 8, |
| 255 | .mask = FL | FR | LFE | RL | RR | RC }, |
| 256 | { .ca_id = 0x0e, .n_ch = 8, |
| 257 | .mask = FL | FR | FC | RL | RR | RC }, |
| 258 | { .ca_id = 0x10, .n_ch = 8, |
| 259 | .mask = FL | FR | RL | RR | RLC | RRC }, |
| 260 | { .ca_id = 0x11, .n_ch = 8, |
| 261 | .mask = FL | FR | LFE | RL | RR | RLC | RRC }, |
| 262 | { .ca_id = 0x12, .n_ch = 8, |
| 263 | .mask = FL | FR | FC | RL | RR | RLC | RRC }, |
| 264 | { .ca_id = 0x14, .n_ch = 8, |
| 265 | .mask = FL | FR | FLC | FRC }, |
| 266 | { .ca_id = 0x15, .n_ch = 8, |
| 267 | .mask = FL | FR | LFE | FLC | FRC }, |
| 268 | { .ca_id = 0x16, .n_ch = 8, |
| 269 | .mask = FL | FR | FC | FLC | FRC }, |
| 270 | { .ca_id = 0x17, .n_ch = 8, |
| 271 | .mask = FL | FR | LFE | FC | FLC | FRC }, |
| 272 | { .ca_id = 0x18, .n_ch = 8, |
| 273 | .mask = FL | FR | RC | FLC | FRC }, |
| 274 | { .ca_id = 0x19, .n_ch = 8, |
| 275 | .mask = FL | FR | LFE | RC | FLC | FRC }, |
| 276 | { .ca_id = 0x1a, .n_ch = 8, |
| 277 | .mask = FL | FR | RC | FC | FLC | FRC }, |
| 278 | { .ca_id = 0x1b, .n_ch = 8, |
| 279 | .mask = FL | FR | LFE | RC | FC | FLC | FRC }, |
| 280 | { .ca_id = 0x1c, .n_ch = 8, |
| 281 | .mask = FL | FR | RL | RR | FLC | FRC }, |
| 282 | { .ca_id = 0x1d, .n_ch = 8, |
| 283 | .mask = FL | FR | LFE | RL | RR | FLC | FRC }, |
| 284 | { .ca_id = 0x1e, .n_ch = 8, |
| 285 | .mask = FL | FR | FC | RL | RR | FLC | FRC }, |
| 286 | { .ca_id = 0x1f, .n_ch = 8, |
| 287 | .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, |
| 288 | }; |
| 289 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 290 | struct hdmi_codec_priv { |
| 291 | struct hdmi_codec_pdata hcd; |
| 292 | struct snd_soc_dai_driver *daidrv; |
| 293 | struct hdmi_codec_daifmt daifmt[2]; |
| 294 | struct mutex current_stream_lock; |
| 295 | struct snd_pcm_substream *current_stream; |
| 296 | struct snd_pcm_hw_constraint_list ratec; |
| 297 | uint8_t eld[MAX_ELD_BYTES]; |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 298 | struct snd_pcm_chmap *chmap_info; |
| 299 | unsigned int chmap_idx; |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 300 | }; |
| 301 | |
| 302 | static const struct snd_soc_dapm_widget hdmi_widgets[] = { |
| 303 | SND_SOC_DAPM_OUTPUT("TX"), |
| 304 | }; |
| 305 | |
| 306 | static const struct snd_soc_dapm_route hdmi_routes[] = { |
| 307 | { "TX", NULL, "Playback" }, |
| 308 | }; |
| 309 | |
| 310 | enum { |
| 311 | DAI_ID_I2S = 0, |
| 312 | DAI_ID_SPDIF, |
| 313 | }; |
| 314 | |
Philipp Zabel | 81151cf | 2016-04-20 10:59:58 +0200 | [diff] [blame] | 315 | static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, |
| 316 | struct snd_ctl_elem_info *uinfo) |
| 317 | { |
| 318 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 319 | struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
| 320 | |
| 321 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
| 322 | uinfo->count = sizeof(hcp->eld); |
| 323 | |
| 324 | return 0; |
| 325 | } |
| 326 | |
| 327 | static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, |
| 328 | struct snd_ctl_elem_value *ucontrol) |
| 329 | { |
| 330 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 331 | struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
| 332 | |
Philipp Zabel | 81151cf | 2016-04-20 10:59:58 +0200 | [diff] [blame] | 333 | memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); |
Philipp Zabel | 81151cf | 2016-04-20 10:59:58 +0200 | [diff] [blame] | 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 338 | static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) |
| 339 | { |
| 340 | int i; |
| 341 | const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { |
| 342 | [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, |
| 343 | [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, |
| 344 | }; |
| 345 | unsigned long spk_mask = 0; |
| 346 | |
| 347 | for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { |
| 348 | if (spk_alloc & (1 << i)) |
| 349 | spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; |
| 350 | } |
| 351 | |
| 352 | return spk_mask; |
| 353 | } |
| 354 | |
| 355 | void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) |
| 356 | { |
| 357 | u8 spk_alloc; |
| 358 | unsigned long spk_mask; |
| 359 | |
| 360 | spk_alloc = drm_eld_get_spk_alloc(hcp->eld); |
| 361 | spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); |
| 362 | |
| 363 | /* Detect if only stereo supported, else return 8 channels mappings */ |
| 364 | if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) |
| 365 | hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; |
| 366 | else |
| 367 | hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; |
| 368 | } |
| 369 | |
| 370 | static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, |
| 371 | unsigned char channels) |
| 372 | { |
| 373 | int i; |
| 374 | u8 spk_alloc; |
| 375 | unsigned long spk_mask; |
| 376 | const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; |
| 377 | |
| 378 | spk_alloc = drm_eld_get_spk_alloc(hcp->eld); |
| 379 | spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); |
| 380 | |
| 381 | for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { |
| 382 | /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ |
| 383 | if (!spk_alloc && cap->ca_id == 0) |
| 384 | return i; |
| 385 | if (cap->n_ch != channels) |
| 386 | continue; |
| 387 | if (!(cap->mask == (spk_mask & cap->mask))) |
| 388 | continue; |
| 389 | return i; |
| 390 | } |
| 391 | |
| 392 | return -EINVAL; |
| 393 | } |
| 394 | static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, |
| 395 | struct snd_ctl_elem_value *ucontrol) |
| 396 | { |
| 397 | unsigned const char *map; |
| 398 | unsigned int i; |
| 399 | struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); |
| 400 | struct hdmi_codec_priv *hcp = info->private_data; |
| 401 | |
| 402 | map = info->chmap[hcp->chmap_idx].map; |
| 403 | |
| 404 | for (i = 0; i < info->max_channels; i++) { |
| 405 | if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) |
| 406 | ucontrol->value.integer.value[i] = 0; |
| 407 | else |
| 408 | ucontrol->value.integer.value[i] = map[i]; |
| 409 | } |
| 410 | |
| 411 | return 0; |
| 412 | } |
| 413 | |
| 414 | |
Philipp Zabel | 81151cf | 2016-04-20 10:59:58 +0200 | [diff] [blame] | 415 | static const struct snd_kcontrol_new hdmi_controls[] = { |
| 416 | { |
| 417 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 418 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 419 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 420 | .name = "ELD", |
| 421 | .info = hdmi_eld_ctl_info, |
| 422 | .get = hdmi_eld_ctl_get, |
| 423 | }, |
| 424 | }; |
| 425 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 426 | static int hdmi_codec_new_stream(struct snd_pcm_substream *substream, |
| 427 | struct snd_soc_dai *dai) |
| 428 | { |
| 429 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 430 | int ret = 0; |
| 431 | |
| 432 | mutex_lock(&hcp->current_stream_lock); |
| 433 | if (!hcp->current_stream) { |
| 434 | hcp->current_stream = substream; |
| 435 | } else if (hcp->current_stream != substream) { |
| 436 | dev_err(dai->dev, "Only one simultaneous stream supported!\n"); |
| 437 | ret = -EINVAL; |
| 438 | } |
| 439 | mutex_unlock(&hcp->current_stream_lock); |
| 440 | |
| 441 | return ret; |
| 442 | } |
| 443 | |
| 444 | static int hdmi_codec_startup(struct snd_pcm_substream *substream, |
| 445 | struct snd_soc_dai *dai) |
| 446 | { |
| 447 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 448 | int ret = 0; |
| 449 | |
| 450 | dev_dbg(dai->dev, "%s()\n", __func__); |
| 451 | |
| 452 | ret = hdmi_codec_new_stream(substream, dai); |
| 453 | if (ret) |
| 454 | return ret; |
| 455 | |
| 456 | if (hcp->hcd.ops->audio_startup) { |
Kuninori Morimoto | efc9194 | 2016-06-24 02:47:55 +0000 | [diff] [blame] | 457 | ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 458 | if (ret) { |
| 459 | mutex_lock(&hcp->current_stream_lock); |
| 460 | hcp->current_stream = NULL; |
| 461 | mutex_unlock(&hcp->current_stream_lock); |
| 462 | return ret; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | if (hcp->hcd.ops->get_eld) { |
Kuninori Morimoto | efc9194 | 2016-06-24 02:47:55 +0000 | [diff] [blame] | 467 | ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, |
| 468 | hcp->eld, sizeof(hcp->eld)); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 469 | |
| 470 | if (!ret) { |
| 471 | ret = snd_pcm_hw_constraint_eld(substream->runtime, |
| 472 | hcp->eld); |
| 473 | if (ret) |
| 474 | return ret; |
| 475 | } |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 476 | /* Select chmap supported */ |
| 477 | hdmi_codec_eld_chmap(hcp); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 478 | } |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, |
| 483 | struct snd_soc_dai *dai) |
| 484 | { |
| 485 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 486 | |
| 487 | dev_dbg(dai->dev, "%s()\n", __func__); |
| 488 | |
| 489 | WARN_ON(hcp->current_stream != substream); |
| 490 | |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 491 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
Kuninori Morimoto | efc9194 | 2016-06-24 02:47:55 +0000 | [diff] [blame] | 492 | hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 493 | |
| 494 | mutex_lock(&hcp->current_stream_lock); |
| 495 | hcp->current_stream = NULL; |
| 496 | mutex_unlock(&hcp->current_stream_lock); |
| 497 | } |
| 498 | |
| 499 | static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, |
| 500 | struct snd_pcm_hw_params *params, |
| 501 | struct snd_soc_dai *dai) |
| 502 | { |
| 503 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 504 | struct hdmi_codec_params hp = { |
| 505 | .iec = { |
| 506 | .status = { 0 }, |
| 507 | .subcode = { 0 }, |
| 508 | .pad = 0, |
| 509 | .dig_subframe = { 0 }, |
| 510 | } |
| 511 | }; |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 512 | int ret, idx; |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 513 | |
| 514 | dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, |
| 515 | params_width(params), params_rate(params), |
| 516 | params_channels(params)); |
| 517 | |
| 518 | if (params_width(params) > 24) |
| 519 | params->msbits = 24; |
| 520 | |
| 521 | ret = snd_pcm_create_iec958_consumer_hw_params(params, hp.iec.status, |
| 522 | sizeof(hp.iec.status)); |
| 523 | if (ret < 0) { |
| 524 | dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", |
| 525 | ret); |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | ret = hdmi_codec_new_stream(substream, dai); |
| 530 | if (ret) |
| 531 | return ret; |
| 532 | |
| 533 | hdmi_audio_infoframe_init(&hp.cea); |
| 534 | hp.cea.channels = params_channels(params); |
| 535 | hp.cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; |
| 536 | hp.cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; |
| 537 | hp.cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; |
| 538 | |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 539 | /* Select a channel allocation that matches with ELD and pcm channels */ |
| 540 | idx = hdmi_codec_get_ch_alloc_table_idx(hcp, hp.cea.channels); |
| 541 | if (idx < 0) { |
| 542 | dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", |
| 543 | idx); |
| 544 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
| 545 | return idx; |
| 546 | } |
| 547 | hp.cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id; |
| 548 | hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id; |
| 549 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 550 | hp.sample_width = params_width(params); |
| 551 | hp.sample_rate = params_rate(params); |
| 552 | hp.channels = params_channels(params); |
| 553 | |
Kuninori Morimoto | efc9194 | 2016-06-24 02:47:55 +0000 | [diff] [blame] | 554 | return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, |
| 555 | &hcp->daifmt[dai->id], &hp); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | static int hdmi_codec_set_fmt(struct snd_soc_dai *dai, |
| 559 | unsigned int fmt) |
| 560 | { |
| 561 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 562 | struct hdmi_codec_daifmt cf = { 0 }; |
| 563 | int ret = 0; |
| 564 | |
| 565 | dev_dbg(dai->dev, "%s()\n", __func__); |
| 566 | |
| 567 | if (dai->id == DAI_ID_SPDIF) { |
| 568 | cf.fmt = HDMI_SPDIF; |
| 569 | } else { |
| 570 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 571 | case SND_SOC_DAIFMT_CBM_CFM: |
| 572 | cf.bit_clk_master = 1; |
| 573 | cf.frame_clk_master = 1; |
| 574 | break; |
| 575 | case SND_SOC_DAIFMT_CBS_CFM: |
| 576 | cf.frame_clk_master = 1; |
| 577 | break; |
| 578 | case SND_SOC_DAIFMT_CBM_CFS: |
| 579 | cf.bit_clk_master = 1; |
| 580 | break; |
| 581 | case SND_SOC_DAIFMT_CBS_CFS: |
| 582 | break; |
| 583 | default: |
| 584 | return -EINVAL; |
| 585 | } |
| 586 | |
| 587 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 588 | case SND_SOC_DAIFMT_NB_NF: |
| 589 | break; |
| 590 | case SND_SOC_DAIFMT_NB_IF: |
| 591 | cf.frame_clk_inv = 1; |
| 592 | break; |
| 593 | case SND_SOC_DAIFMT_IB_NF: |
| 594 | cf.bit_clk_inv = 1; |
| 595 | break; |
| 596 | case SND_SOC_DAIFMT_IB_IF: |
| 597 | cf.frame_clk_inv = 1; |
| 598 | cf.bit_clk_inv = 1; |
| 599 | break; |
| 600 | } |
| 601 | |
| 602 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 603 | case SND_SOC_DAIFMT_I2S: |
| 604 | cf.fmt = HDMI_I2S; |
| 605 | break; |
| 606 | case SND_SOC_DAIFMT_DSP_A: |
| 607 | cf.fmt = HDMI_DSP_A; |
| 608 | break; |
| 609 | case SND_SOC_DAIFMT_DSP_B: |
| 610 | cf.fmt = HDMI_DSP_B; |
| 611 | break; |
| 612 | case SND_SOC_DAIFMT_RIGHT_J: |
| 613 | cf.fmt = HDMI_RIGHT_J; |
| 614 | break; |
| 615 | case SND_SOC_DAIFMT_LEFT_J: |
| 616 | cf.fmt = HDMI_LEFT_J; |
| 617 | break; |
| 618 | case SND_SOC_DAIFMT_AC97: |
| 619 | cf.fmt = HDMI_AC97; |
| 620 | break; |
| 621 | default: |
| 622 | dev_err(dai->dev, "Invalid DAI interface format\n"); |
| 623 | return -EINVAL; |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | hcp->daifmt[dai->id] = cf; |
| 628 | |
| 629 | return ret; |
| 630 | } |
| 631 | |
| 632 | static int hdmi_codec_digital_mute(struct snd_soc_dai *dai, int mute) |
| 633 | { |
| 634 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 635 | |
| 636 | dev_dbg(dai->dev, "%s()\n", __func__); |
| 637 | |
| 638 | if (hcp->hcd.ops->digital_mute) |
Kuninori Morimoto | efc9194 | 2016-06-24 02:47:55 +0000 | [diff] [blame] | 639 | return hcp->hcd.ops->digital_mute(dai->dev->parent, |
| 640 | hcp->hcd.data, mute); |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 641 | |
| 642 | return 0; |
| 643 | } |
| 644 | |
| 645 | static const struct snd_soc_dai_ops hdmi_dai_ops = { |
| 646 | .startup = hdmi_codec_startup, |
| 647 | .shutdown = hdmi_codec_shutdown, |
| 648 | .hw_params = hdmi_codec_hw_params, |
| 649 | .set_fmt = hdmi_codec_set_fmt, |
| 650 | .digital_mute = hdmi_codec_digital_mute, |
| 651 | }; |
| 652 | |
| 653 | |
| 654 | #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ |
| 655 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ |
| 656 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ |
| 657 | SNDRV_PCM_RATE_192000) |
| 658 | |
| 659 | #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ |
| 660 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ |
| 661 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ |
| 662 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE) |
| 663 | |
| 664 | /* |
| 665 | * This list is only for formats allowed on the I2S bus. So there is |
| 666 | * some formats listed that are not supported by HDMI interface. For |
| 667 | * instance allowing the 32-bit formats enables 24-precision with CPU |
| 668 | * DAIs that do not support 24-bit formats. If the extra formats cause |
| 669 | * problems, we should add the video side driver an option to disable |
| 670 | * them. |
| 671 | */ |
| 672 | #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ |
| 673 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ |
| 674 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ |
| 675 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\ |
| 676 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE) |
| 677 | |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 678 | static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, |
| 679 | struct snd_soc_dai *dai) |
| 680 | { |
| 681 | struct snd_soc_dai_driver *drv = dai->driver; |
| 682 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
| 683 | int ret; |
| 684 | |
| 685 | dev_dbg(dai->dev, "%s()\n", __func__); |
| 686 | |
| 687 | ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| 688 | NULL, drv->playback.channels_max, 0, |
| 689 | &hcp->chmap_info); |
| 690 | if (ret < 0) |
| 691 | return ret; |
| 692 | |
| 693 | /* override handlers */ |
| 694 | hcp->chmap_info->private_data = hcp; |
| 695 | hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; |
| 696 | |
| 697 | /* default chmap supported is stereo */ |
| 698 | hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; |
| 699 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
| 700 | |
| 701 | return 0; |
| 702 | } |
| 703 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 704 | static struct snd_soc_dai_driver hdmi_i2s_dai = { |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 705 | .id = DAI_ID_I2S, |
| 706 | .playback = { |
| 707 | .stream_name = "Playback", |
| 708 | .channels_min = 2, |
| 709 | .channels_max = 8, |
| 710 | .rates = HDMI_RATES, |
| 711 | .formats = I2S_FORMATS, |
| 712 | .sig_bits = 24, |
| 713 | }, |
| 714 | .ops = &hdmi_dai_ops, |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 715 | .pcm_new = hdmi_codec_pcm_new, |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 716 | }; |
| 717 | |
| 718 | static const struct snd_soc_dai_driver hdmi_spdif_dai = { |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 719 | .id = DAI_ID_SPDIF, |
| 720 | .playback = { |
| 721 | .stream_name = "Playback", |
| 722 | .channels_min = 2, |
| 723 | .channels_max = 2, |
| 724 | .rates = HDMI_RATES, |
| 725 | .formats = SPDIF_FORMATS, |
| 726 | }, |
| 727 | .ops = &hdmi_dai_ops, |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 728 | .pcm_new = hdmi_codec_pcm_new, |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 729 | }; |
| 730 | |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 731 | static char hdmi_dai_name[][DAI_NAME_SIZE] = { |
| 732 | "hdmi-hifi.0", |
| 733 | "hdmi-hifi.1", |
| 734 | "hdmi-hifi.2", |
| 735 | "hdmi-hifi.3", |
| 736 | }; |
| 737 | |
| 738 | static int hdmi_of_xlate_dai_name(struct snd_soc_component *component, |
| 739 | struct of_phandle_args *args, |
| 740 | const char **dai_name) |
| 741 | { |
Jon Medhurst (Tixy) | 340327a | 2016-10-28 09:18:24 +0100 | [diff] [blame] | 742 | int id; |
| 743 | |
| 744 | if (args->args_count) |
| 745 | id = args->args[0]; |
| 746 | else |
| 747 | id = 0; |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 748 | |
| 749 | if (id < ARRAY_SIZE(hdmi_dai_name)) { |
| 750 | *dai_name = hdmi_dai_name[id]; |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | return -EAGAIN; |
| 755 | } |
| 756 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 757 | static struct snd_soc_codec_driver hdmi_codec = { |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 758 | .component_driver = { |
Kuninori Morimoto | 88b0f76 | 2016-08-08 09:16:40 +0000 | [diff] [blame] | 759 | .controls = hdmi_controls, |
| 760 | .num_controls = ARRAY_SIZE(hdmi_controls), |
| 761 | .dapm_widgets = hdmi_widgets, |
| 762 | .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), |
| 763 | .dapm_routes = hdmi_routes, |
| 764 | .num_dapm_routes = ARRAY_SIZE(hdmi_routes), |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 765 | .of_xlate_dai_name = hdmi_of_xlate_dai_name, |
| 766 | }, |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 767 | }; |
| 768 | |
| 769 | static int hdmi_codec_probe(struct platform_device *pdev) |
| 770 | { |
| 771 | struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; |
| 772 | struct device *dev = &pdev->dev; |
| 773 | struct hdmi_codec_priv *hcp; |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 774 | struct hdmi_device *hd; |
| 775 | struct list_head *pos; |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 776 | int dai_count, i = 0; |
| 777 | int ret; |
| 778 | |
| 779 | dev_dbg(dev, "%s()\n", __func__); |
| 780 | |
| 781 | if (!hcd) { |
| 782 | dev_err(dev, "%s: No plalform data\n", __func__); |
| 783 | return -EINVAL; |
| 784 | } |
| 785 | |
| 786 | dai_count = hcd->i2s + hcd->spdif; |
| 787 | if (dai_count < 1 || !hcd->ops || !hcd->ops->hw_params || |
| 788 | !hcd->ops->audio_shutdown) { |
| 789 | dev_err(dev, "%s: Invalid parameters\n", __func__); |
| 790 | return -EINVAL; |
| 791 | } |
| 792 | |
| 793 | hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); |
| 794 | if (!hcp) |
| 795 | return -ENOMEM; |
| 796 | |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 797 | hd = NULL; |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 798 | mutex_lock(&hdmi_mutex); |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 799 | list_for_each(pos, &hdmi_device_list) { |
| 800 | struct hdmi_device *tmp = pos_to_hdmi_device(pos); |
| 801 | |
| 802 | if (tmp->dev == dev->parent) { |
| 803 | hd = tmp; |
| 804 | break; |
| 805 | } |
| 806 | } |
| 807 | |
| 808 | if (!hd) { |
| 809 | hd = devm_kzalloc(dev, sizeof(*hd), GFP_KERNEL); |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 810 | if (!hd) { |
| 811 | mutex_unlock(&hdmi_mutex); |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 812 | return -ENOMEM; |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 813 | } |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 814 | |
| 815 | hd->dev = dev->parent; |
| 816 | |
| 817 | list_add_tail(&hd->list, &hdmi_device_list); |
| 818 | } |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 819 | mutex_unlock(&hdmi_mutex); |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 820 | |
| 821 | if (hd->cnt >= ARRAY_SIZE(hdmi_dai_name)) { |
| 822 | dev_err(dev, "too many hdmi codec are deteced\n"); |
| 823 | return -EINVAL; |
| 824 | } |
| 825 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 826 | hcp->hcd = *hcd; |
| 827 | mutex_init(&hcp->current_stream_lock); |
| 828 | |
| 829 | hcp->daidrv = devm_kzalloc(dev, dai_count * sizeof(*hcp->daidrv), |
| 830 | GFP_KERNEL); |
| 831 | if (!hcp->daidrv) |
| 832 | return -ENOMEM; |
| 833 | |
| 834 | if (hcd->i2s) { |
| 835 | hcp->daidrv[i] = hdmi_i2s_dai; |
| 836 | hcp->daidrv[i].playback.channels_max = |
| 837 | hcd->max_i2s_channels; |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 838 | hcp->daidrv[i].name = hdmi_dai_name[hd->cnt++]; |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 839 | i++; |
| 840 | } |
| 841 | |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 842 | if (hcd->spdif) { |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 843 | hcp->daidrv[i] = hdmi_spdif_dai; |
Kuninori Morimoto | 9731f82 | 2016-08-03 02:08:41 +0000 | [diff] [blame] | 844 | hcp->daidrv[i].name = hdmi_dai_name[hd->cnt++]; |
| 845 | } |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 846 | |
| 847 | ret = snd_soc_register_codec(dev, &hdmi_codec, hcp->daidrv, |
| 848 | dai_count); |
| 849 | if (ret) { |
| 850 | dev_err(dev, "%s: snd_soc_register_codec() failed (%d)\n", |
| 851 | __func__, ret); |
| 852 | return ret; |
| 853 | } |
| 854 | |
| 855 | dev_set_drvdata(dev, hcp); |
| 856 | return 0; |
| 857 | } |
| 858 | |
| 859 | static int hdmi_codec_remove(struct platform_device *pdev) |
| 860 | { |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 861 | struct device *dev = &pdev->dev; |
| 862 | struct list_head *pos; |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 863 | struct hdmi_codec_priv *hcp; |
| 864 | |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 865 | mutex_lock(&hdmi_mutex); |
| 866 | list_for_each(pos, &hdmi_device_list) { |
| 867 | struct hdmi_device *tmp = pos_to_hdmi_device(pos); |
| 868 | |
| 869 | if (tmp->dev == dev->parent) { |
| 870 | list_del(pos); |
| 871 | break; |
| 872 | } |
| 873 | } |
| 874 | mutex_unlock(&hdmi_mutex); |
| 875 | |
| 876 | hcp = dev_get_drvdata(dev); |
Arnaud Pouliquen | cd6111b | 2017-01-03 16:52:52 +0100 | [diff] [blame] | 877 | kfree(hcp->chmap_info); |
Vincent Abriou | 8480ac5 | 2017-02-08 10:47:01 +0100 | [diff] [blame^] | 878 | snd_soc_unregister_codec(dev); |
| 879 | |
Jyri Sarha | 0918411 | 2016-03-31 16:36:00 +0300 | [diff] [blame] | 880 | return 0; |
| 881 | } |
| 882 | |
| 883 | static struct platform_driver hdmi_codec_driver = { |
| 884 | .driver = { |
| 885 | .name = HDMI_CODEC_DRV_NAME, |
| 886 | }, |
| 887 | .probe = hdmi_codec_probe, |
| 888 | .remove = hdmi_codec_remove, |
| 889 | }; |
| 890 | |
| 891 | module_platform_driver(hdmi_codec_driver); |
| 892 | |
| 893 | MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); |
| 894 | MODULE_DESCRIPTION("HDMI Audio Codec Driver"); |
| 895 | MODULE_LICENSE("GPL"); |
| 896 | MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); |