1 /* 2 * Copyright (C) ST-Ericsson SA 2012 3 * 4 * Author: Ola Lilja <ola.o.lilja@stericsson.com>, 5 * Kristoffer Karlsson <kristoffer.karlsson@stericsson.com> 6 * for ST-Ericsson. 7 * 8 * License terms: 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as published 12 * by the Free Software Foundation. 13 */ 14 15 #include <linux/module.h> 16 #include <linux/device.h> 17 #include <linux/io.h> 18 #include <linux/clk.h> 19 20 #include <sound/soc.h> 21 #include <sound/soc-dapm.h> 22 #include <sound/pcm.h> 23 #include <sound/pcm_params.h> 24 25 #include "ux500_pcm.h" 26 #include "ux500_msp_dai.h" 27 #include "../codecs/ab8500-codec.h" 28 29 #define TX_SLOT_MONO 0x0008 30 #define TX_SLOT_STEREO 0x000a 31 #define RX_SLOT_MONO 0x0001 32 #define RX_SLOT_STEREO 0x0003 33 #define TX_SLOT_8CH 0x00FF 34 #define RX_SLOT_8CH 0x00FF 35 36 #define DEF_TX_SLOTS TX_SLOT_STEREO 37 #define DEF_RX_SLOTS RX_SLOT_MONO 38 39 #define DRIVERMODE_NORMAL 0 40 #define DRIVERMODE_CODEC_ONLY 1 41 42 /* Slot configuration */ 43 static unsigned int tx_slots = DEF_TX_SLOTS; 44 static unsigned int rx_slots = DEF_RX_SLOTS; 45 46 /* Clocks */ 47 static const char * const enum_mclk[] = { 48 "SYSCLK", 49 "ULPCLK" 50 }; 51 enum mclk { 52 MCLK_SYSCLK, 53 MCLK_ULPCLK, 54 }; 55 56 static SOC_ENUM_SINGLE_EXT_DECL(soc_enum_mclk, enum_mclk); 57 58 /* Private data for machine-part MOP500<->AB8500 */ 59 struct mop500_ab8500_drvdata { 60 /* Clocks */ 61 enum mclk mclk_sel; 62 struct clk *clk_ptr_intclk; 63 struct clk *clk_ptr_sysclk; 64 struct clk *clk_ptr_ulpclk; 65 }; 66 67 static inline const char *get_mclk_str(enum mclk mclk_sel) 68 { 69 switch (mclk_sel) { 70 case MCLK_SYSCLK: 71 return "SYSCLK"; 72 case MCLK_ULPCLK: 73 return "ULPCLK"; 74 default: 75 return "Unknown"; 76 } 77 } 78 79 static int mop500_ab8500_set_mclk(struct device *dev, 80 struct mop500_ab8500_drvdata *drvdata) 81 { 82 int status; 83 struct clk *clk_ptr; 84 85 if (IS_ERR(drvdata->clk_ptr_intclk)) { 86 dev_err(dev, 87 "%s: ERROR: intclk not initialized!\n", __func__); 88 return -EIO; 89 } 90 91 switch (drvdata->mclk_sel) { 92 case MCLK_SYSCLK: 93 clk_ptr = drvdata->clk_ptr_sysclk; 94 break; 95 case MCLK_ULPCLK: 96 clk_ptr = drvdata->clk_ptr_ulpclk; 97 break; 98 default: 99 return -EINVAL; 100 } 101 102 if (IS_ERR(clk_ptr)) { 103 dev_err(dev, "%s: ERROR: %s not initialized!\n", __func__, 104 get_mclk_str(drvdata->mclk_sel)); 105 return -EIO; 106 } 107 108 status = clk_set_parent(drvdata->clk_ptr_intclk, clk_ptr); 109 if (status) 110 dev_err(dev, 111 "%s: ERROR: Setting intclk parent to %s failed (ret = %d)!", 112 __func__, get_mclk_str(drvdata->mclk_sel), status); 113 else 114 dev_dbg(dev, 115 "%s: intclk parent changed to %s.\n", 116 __func__, get_mclk_str(drvdata->mclk_sel)); 117 118 return status; 119 } 120 121 /* 122 * Control-events 123 */ 124 125 static int mclk_input_control_get(struct snd_kcontrol *kcontrol, 126 struct snd_ctl_elem_value *ucontrol) 127 { 128 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 129 struct mop500_ab8500_drvdata *drvdata = 130 snd_soc_card_get_drvdata(card); 131 132 ucontrol->value.enumerated.item[0] = drvdata->mclk_sel; 133 134 return 0; 135 } 136 137 static int mclk_input_control_put(struct snd_kcontrol *kcontrol, 138 struct snd_ctl_elem_value *ucontrol) 139 { 140 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 141 struct mop500_ab8500_drvdata *drvdata = 142 snd_soc_card_get_drvdata(card); 143 unsigned int val = ucontrol->value.enumerated.item[0]; 144 145 if (val > (unsigned int)MCLK_ULPCLK) 146 return -EINVAL; 147 if (drvdata->mclk_sel == val) 148 return 0; 149 150 drvdata->mclk_sel = val; 151 152 return 1; 153 } 154 155 /* 156 * Controls 157 */ 158 159 static struct snd_kcontrol_new mop500_ab8500_ctrls[] = { 160 SOC_ENUM_EXT("Master Clock Select", 161 soc_enum_mclk, 162 mclk_input_control_get, mclk_input_control_put), 163 SOC_DAPM_PIN_SWITCH("Headset Left"), 164 SOC_DAPM_PIN_SWITCH("Headset Right"), 165 SOC_DAPM_PIN_SWITCH("Earpiece"), 166 SOC_DAPM_PIN_SWITCH("Speaker Left"), 167 SOC_DAPM_PIN_SWITCH("Speaker Right"), 168 SOC_DAPM_PIN_SWITCH("LineOut Left"), 169 SOC_DAPM_PIN_SWITCH("LineOut Right"), 170 SOC_DAPM_PIN_SWITCH("Vibra 1"), 171 SOC_DAPM_PIN_SWITCH("Vibra 2"), 172 SOC_DAPM_PIN_SWITCH("Mic 1"), 173 SOC_DAPM_PIN_SWITCH("Mic 2"), 174 SOC_DAPM_PIN_SWITCH("LineIn Left"), 175 SOC_DAPM_PIN_SWITCH("LineIn Right"), 176 SOC_DAPM_PIN_SWITCH("DMic 1"), 177 SOC_DAPM_PIN_SWITCH("DMic 2"), 178 SOC_DAPM_PIN_SWITCH("DMic 3"), 179 SOC_DAPM_PIN_SWITCH("DMic 4"), 180 SOC_DAPM_PIN_SWITCH("DMic 5"), 181 SOC_DAPM_PIN_SWITCH("DMic 6"), 182 }; 183 184 /* ASoC */ 185 186 static int mop500_ab8500_startup(struct snd_pcm_substream *substream) 187 { 188 struct snd_soc_pcm_runtime *rtd = substream->private_data; 189 190 /* Set audio-clock source */ 191 return mop500_ab8500_set_mclk(rtd->card->dev, 192 snd_soc_card_get_drvdata(rtd->card)); 193 } 194 195 static void mop500_ab8500_shutdown(struct snd_pcm_substream *substream) 196 { 197 struct snd_soc_pcm_runtime *rtd = substream->private_data; 198 struct device *dev = rtd->card->dev; 199 200 dev_dbg(dev, "%s: Enter\n", __func__); 201 202 /* Reset slots configuration to default(s) */ 203 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 204 tx_slots = DEF_TX_SLOTS; 205 else 206 rx_slots = DEF_RX_SLOTS; 207 } 208 209 static int mop500_ab8500_hw_params(struct snd_pcm_substream *substream, 210 struct snd_pcm_hw_params *params) 211 { 212 struct snd_soc_pcm_runtime *rtd = substream->private_data; 213 struct snd_soc_dai *codec_dai = rtd->codec_dai; 214 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 215 struct device *dev = rtd->card->dev; 216 unsigned int fmt; 217 int channels, ret = 0, driver_mode, slots; 218 unsigned int sw_codec, sw_cpu; 219 bool is_playback; 220 221 dev_dbg(dev, "%s: Enter\n", __func__); 222 223 dev_dbg(dev, "%s: substream->pcm->name = %s\n" 224 "substream->pcm->id = %s.\n" 225 "substream->name = %s.\n" 226 "substream->number = %d.\n", 227 __func__, 228 substream->pcm->name, 229 substream->pcm->id, 230 substream->name, 231 substream->number); 232 233 channels = params_channels(params); 234 235 switch (params_format(params)) { 236 case SNDRV_PCM_FORMAT_S32_LE: 237 sw_cpu = 32; 238 break; 239 240 case SNDRV_PCM_FORMAT_S16_LE: 241 sw_cpu = 16; 242 break; 243 244 default: 245 return -EINVAL; 246 } 247 248 /* Setup codec depending on driver-mode */ 249 if (channels == 8) 250 driver_mode = DRIVERMODE_CODEC_ONLY; 251 else 252 driver_mode = DRIVERMODE_NORMAL; 253 dev_dbg(dev, "%s: Driver-mode: %s.\n", __func__, 254 (driver_mode == DRIVERMODE_NORMAL) ? "NORMAL" : "CODEC_ONLY"); 255 256 /* Setup format */ 257 258 if (driver_mode == DRIVERMODE_NORMAL) { 259 fmt = SND_SOC_DAIFMT_DSP_A | 260 SND_SOC_DAIFMT_CBM_CFM | 261 SND_SOC_DAIFMT_NB_NF | 262 SND_SOC_DAIFMT_CONT; 263 } else { 264 fmt = SND_SOC_DAIFMT_DSP_A | 265 SND_SOC_DAIFMT_CBM_CFM | 266 SND_SOC_DAIFMT_NB_NF | 267 SND_SOC_DAIFMT_GATED; 268 } 269 270 ret = snd_soc_dai_set_fmt(codec_dai, fmt); 271 if (ret < 0) { 272 dev_err(dev, 273 "%s: ERROR: snd_soc_dai_set_fmt failed for codec_dai (ret = %d)!\n", 274 __func__, ret); 275 return ret; 276 } 277 278 ret = snd_soc_dai_set_fmt(cpu_dai, fmt); 279 if (ret < 0) { 280 dev_err(dev, 281 "%s: ERROR: snd_soc_dai_set_fmt failed for cpu_dai (ret = %d)!\n", 282 __func__, ret); 283 return ret; 284 } 285 286 /* Setup TDM-slots */ 287 288 is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); 289 switch (channels) { 290 case 1: 291 slots = 16; 292 tx_slots = (is_playback) ? TX_SLOT_MONO : 0; 293 rx_slots = (is_playback) ? 0 : RX_SLOT_MONO; 294 break; 295 case 2: 296 slots = 16; 297 tx_slots = (is_playback) ? TX_SLOT_STEREO : 0; 298 rx_slots = (is_playback) ? 0 : RX_SLOT_STEREO; 299 break; 300 case 8: 301 slots = 16; 302 tx_slots = (is_playback) ? TX_SLOT_8CH : 0; 303 rx_slots = (is_playback) ? 0 : RX_SLOT_8CH; 304 break; 305 default: 306 return -EINVAL; 307 } 308 309 if (driver_mode == DRIVERMODE_NORMAL) 310 sw_codec = sw_cpu; 311 else 312 sw_codec = 20; 313 314 dev_dbg(dev, "%s: CPU-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__, 315 tx_slots, rx_slots); 316 ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_slots, rx_slots, slots, 317 sw_cpu); 318 if (ret) 319 return ret; 320 321 dev_dbg(dev, "%s: CODEC-DAI TDM: TX=0x%04X RX=0x%04x\n", __func__, 322 tx_slots, rx_slots); 323 ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_slots, rx_slots, slots, 324 sw_codec); 325 if (ret) 326 return ret; 327 328 return 0; 329 } 330 331 struct snd_soc_ops mop500_ab8500_ops[] = { 332 { 333 .hw_params = mop500_ab8500_hw_params, 334 .startup = mop500_ab8500_startup, 335 .shutdown = mop500_ab8500_shutdown, 336 } 337 }; 338 339 int mop500_ab8500_machine_init(struct snd_soc_pcm_runtime *rtd) 340 { 341 struct snd_soc_codec *codec = rtd->codec; 342 struct device *dev = rtd->card->dev; 343 struct mop500_ab8500_drvdata *drvdata; 344 int ret; 345 346 dev_dbg(dev, "%s Enter.\n", __func__); 347 348 /* Create driver private-data struct */ 349 drvdata = devm_kzalloc(dev, sizeof(struct mop500_ab8500_drvdata), 350 GFP_KERNEL); 351 snd_soc_card_set_drvdata(rtd->card, drvdata); 352 353 /* Setup clocks */ 354 355 drvdata->clk_ptr_sysclk = clk_get(dev, "sysclk"); 356 if (IS_ERR(drvdata->clk_ptr_sysclk)) 357 dev_warn(dev, "%s: WARNING: clk_get failed for 'sysclk'!\n", 358 __func__); 359 drvdata->clk_ptr_ulpclk = clk_get(dev, "ulpclk"); 360 if (IS_ERR(drvdata->clk_ptr_ulpclk)) 361 dev_warn(dev, "%s: WARNING: clk_get failed for 'ulpclk'!\n", 362 __func__); 363 drvdata->clk_ptr_intclk = clk_get(dev, "intclk"); 364 if (IS_ERR(drvdata->clk_ptr_intclk)) 365 dev_warn(dev, "%s: WARNING: clk_get failed for 'intclk'!\n", 366 __func__); 367 368 /* Set intclk default parent to ulpclk */ 369 drvdata->mclk_sel = MCLK_ULPCLK; 370 ret = mop500_ab8500_set_mclk(dev, drvdata); 371 if (ret < 0) 372 dev_warn(dev, "%s: WARNING: mop500_ab8500_set_mclk!\n", 373 __func__); 374 375 drvdata->mclk_sel = MCLK_ULPCLK; 376 377 /* Add controls */ 378 ret = snd_soc_add_card_controls(codec->card, mop500_ab8500_ctrls, 379 ARRAY_SIZE(mop500_ab8500_ctrls)); 380 if (ret < 0) { 381 pr_err("%s: Failed to add machine-controls (%d)!\n", 382 __func__, ret); 383 return ret; 384 } 385 386 ret = snd_soc_dapm_disable_pin(&codec->dapm, "Earpiece"); 387 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Left"); 388 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Speaker Right"); 389 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Left"); 390 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineOut Right"); 391 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 1"); 392 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Vibra 2"); 393 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 1"); 394 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "Mic 2"); 395 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Left"); 396 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "LineIn Right"); 397 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 1"); 398 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 2"); 399 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 3"); 400 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 4"); 401 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 5"); 402 ret |= snd_soc_dapm_disable_pin(&codec->dapm, "DMic 6"); 403 404 return ret; 405 } 406 407 void mop500_ab8500_remove(struct snd_soc_card *card) 408 { 409 struct mop500_ab8500_drvdata *drvdata = snd_soc_card_get_drvdata(card); 410 411 if (drvdata->clk_ptr_sysclk != NULL) 412 clk_put(drvdata->clk_ptr_sysclk); 413 if (drvdata->clk_ptr_ulpclk != NULL) 414 clk_put(drvdata->clk_ptr_ulpclk); 415 if (drvdata->clk_ptr_intclk != NULL) 416 clk_put(drvdata->clk_ptr_intclk); 417 418 snd_soc_card_set_drvdata(card, drvdata); 419 } 420