1/* 2 * SoC audio for HTC Magician 3 * 4 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com> 5 * 6 * based on spitz.c, 7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk> 8 * Richard Purdie <richard@openedhand.com> 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 * 15 */ 16 17#include <linux/module.h> 18#include <linux/timer.h> 19#include <linux/interrupt.h> 20#include <linux/platform_device.h> 21#include <linux/delay.h> 22#include <linux/gpio.h> 23#include <linux/i2c.h> 24 25#include <sound/core.h> 26#include <sound/pcm.h> 27#include <sound/pcm_params.h> 28#include <sound/soc.h> 29#include <sound/uda1380.h> 30 31#include <mach/magician.h> 32#include <asm/mach-types.h> 33#include "../codecs/uda1380.h" 34#include "pxa2xx-i2s.h" 35#include "pxa-ssp.h" 36 37#define MAGICIAN_MIC 0 38#define MAGICIAN_MIC_EXT 1 39 40static int magician_hp_switch; 41static int magician_spk_switch = 1; 42static int magician_in_sel = MAGICIAN_MIC; 43 44static void magician_ext_control(struct snd_soc_codec *codec) 45{ 46 struct snd_soc_dapm_context *dapm = &codec->dapm; 47 48 if (magician_spk_switch) 49 snd_soc_dapm_enable_pin(dapm, "Speaker"); 50 else 51 snd_soc_dapm_disable_pin(dapm, "Speaker"); 52 if (magician_hp_switch) 53 snd_soc_dapm_enable_pin(dapm, "Headphone Jack"); 54 else 55 snd_soc_dapm_disable_pin(dapm, "Headphone Jack"); 56 57 switch (magician_in_sel) { 58 case MAGICIAN_MIC: 59 snd_soc_dapm_disable_pin(dapm, "Headset Mic"); 60 snd_soc_dapm_enable_pin(dapm, "Call Mic"); 61 break; 62 case MAGICIAN_MIC_EXT: 63 snd_soc_dapm_disable_pin(dapm, "Call Mic"); 64 snd_soc_dapm_enable_pin(dapm, "Headset Mic"); 65 break; 66 } 67 68 snd_soc_dapm_sync(dapm); 69} 70 71static int magician_startup(struct snd_pcm_substream *substream) 72{ 73 struct snd_soc_pcm_runtime *rtd = substream->private_data; 74 struct snd_soc_codec *codec = rtd->codec; 75 76 mutex_lock(&codec->mutex); 77 78 /* check the jack status at stream startup */ 79 magician_ext_control(codec); 80 81 mutex_unlock(&codec->mutex); 82 83 return 0; 84} 85 86/* 87 * Magician uses SSP port for playback. 88 */ 89static int magician_playback_hw_params(struct snd_pcm_substream *substream, 90 struct snd_pcm_hw_params *params) 91{ 92 struct snd_soc_pcm_runtime *rtd = substream->private_data; 93 struct snd_soc_dai *codec_dai = rtd->codec_dai; 94 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 95 unsigned int acps, acds, width, rate; 96 unsigned int div4 = PXA_SSP_CLK_SCDB_4; 97 int ret = 0; 98 99 rate = params_rate(params); 100 width = snd_pcm_format_physical_width(params_format(params)); 101 102 /* 103 * rate = SSPSCLK / (2 * width(16 or 32)) 104 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1) 105 */ 106 switch (params_rate(params)) { 107 case 8000: 108 /* off by a factor of 2: bug in the PXA27x audio clock? */ 109 acps = 32842000; 110 switch (width) { 111 case 16: 112 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */ 113 acds = PXA_SSP_CLK_AUDIO_DIV_16; 114 break; 115 default: /* 32 */ 116 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */ 117 acds = PXA_SSP_CLK_AUDIO_DIV_8; 118 } 119 break; 120 case 11025: 121 acps = 5622000; 122 switch (width) { 123 case 16: 124 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */ 125 acds = PXA_SSP_CLK_AUDIO_DIV_4; 126 break; 127 default: /* 32 */ 128 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */ 129 acds = PXA_SSP_CLK_AUDIO_DIV_2; 130 } 131 break; 132 case 22050: 133 acps = 5622000; 134 switch (width) { 135 case 16: 136 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */ 137 acds = PXA_SSP_CLK_AUDIO_DIV_2; 138 break; 139 default: /* 32 */ 140 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */ 141 acds = PXA_SSP_CLK_AUDIO_DIV_1; 142 } 143 break; 144 case 44100: 145 acps = 5622000; 146 switch (width) { 147 case 16: 148 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */ 149 acds = PXA_SSP_CLK_AUDIO_DIV_2; 150 break; 151 default: /* 32 */ 152 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */ 153 acds = PXA_SSP_CLK_AUDIO_DIV_1; 154 } 155 break; 156 case 48000: 157 acps = 12235000; 158 switch (width) { 159 case 16: 160 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */ 161 acds = PXA_SSP_CLK_AUDIO_DIV_2; 162 break; 163 default: /* 32 */ 164 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */ 165 acds = PXA_SSP_CLK_AUDIO_DIV_1; 166 } 167 break; 168 case 96000: 169 default: 170 acps = 12235000; 171 switch (width) { 172 case 16: 173 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */ 174 acds = PXA_SSP_CLK_AUDIO_DIV_1; 175 break; 176 default: /* 32 */ 177 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */ 178 acds = PXA_SSP_CLK_AUDIO_DIV_2; 179 div4 = PXA_SSP_CLK_SCDB_1; 180 break; 181 } 182 break; 183 } 184 185 /* set codec DAI configuration */ 186 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB | 187 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); 188 if (ret < 0) 189 return ret; 190 191 /* set cpu DAI configuration */ 192 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | 193 SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS); 194 if (ret < 0) 195 return ret; 196 197 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width); 198 if (ret < 0) 199 return ret; 200 201 /* set audio clock as clock source */ 202 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0, 203 SND_SOC_CLOCK_OUT); 204 if (ret < 0) 205 return ret; 206 207 /* set the SSP audio system clock ACDS divider */ 208 ret = snd_soc_dai_set_clkdiv(cpu_dai, 209 PXA_SSP_AUDIO_DIV_ACDS, acds); 210 if (ret < 0) 211 return ret; 212 213 /* set the SSP audio system clock SCDB divider4 */ 214 ret = snd_soc_dai_set_clkdiv(cpu_dai, 215 PXA_SSP_AUDIO_DIV_SCDB, div4); 216 if (ret < 0) 217 return ret; 218 219 /* set SSP audio pll clock */ 220 ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps); 221 if (ret < 0) 222 return ret; 223 224 return 0; 225} 226 227/* 228 * Magician uses I2S for capture. 229 */ 230static int magician_capture_hw_params(struct snd_pcm_substream *substream, 231 struct snd_pcm_hw_params *params) 232{ 233 struct snd_soc_pcm_runtime *rtd = substream->private_data; 234 struct snd_soc_dai *codec_dai = rtd->codec_dai; 235 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 236 int ret = 0; 237 238 /* set codec DAI configuration */ 239 ret = snd_soc_dai_set_fmt(codec_dai, 240 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | 241 SND_SOC_DAIFMT_CBS_CFS); 242 if (ret < 0) 243 return ret; 244 245 /* set cpu DAI configuration */ 246 ret = snd_soc_dai_set_fmt(cpu_dai, 247 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | 248 SND_SOC_DAIFMT_CBS_CFS); 249 if (ret < 0) 250 return ret; 251 252 /* set the I2S system clock as output */ 253 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, 254 SND_SOC_CLOCK_OUT); 255 if (ret < 0) 256 return ret; 257 258 return 0; 259} 260 261static struct snd_soc_ops magician_capture_ops = { 262 .startup = magician_startup, 263 .hw_params = magician_capture_hw_params, 264}; 265 266static struct snd_soc_ops magician_playback_ops = { 267 .startup = magician_startup, 268 .hw_params = magician_playback_hw_params, 269}; 270 271static int magician_get_hp(struct snd_kcontrol *kcontrol, 272 struct snd_ctl_elem_value *ucontrol) 273{ 274 ucontrol->value.integer.value[0] = magician_hp_switch; 275 return 0; 276} 277 278static int magician_set_hp(struct snd_kcontrol *kcontrol, 279 struct snd_ctl_elem_value *ucontrol) 280{ 281 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 282 283 if (magician_hp_switch == ucontrol->value.integer.value[0]) 284 return 0; 285 286 magician_hp_switch = ucontrol->value.integer.value[0]; 287 magician_ext_control(codec); 288 return 1; 289} 290 291static int magician_get_spk(struct snd_kcontrol *kcontrol, 292 struct snd_ctl_elem_value *ucontrol) 293{ 294 ucontrol->value.integer.value[0] = magician_spk_switch; 295 return 0; 296} 297 298static int magician_set_spk(struct snd_kcontrol *kcontrol, 299 struct snd_ctl_elem_value *ucontrol) 300{ 301 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 302 303 if (magician_spk_switch == ucontrol->value.integer.value[0]) 304 return 0; 305 306 magician_spk_switch = ucontrol->value.integer.value[0]; 307 magician_ext_control(codec); 308 return 1; 309} 310 311static int magician_get_input(struct snd_kcontrol *kcontrol, 312 struct snd_ctl_elem_value *ucontrol) 313{ 314 ucontrol->value.integer.value[0] = magician_in_sel; 315 return 0; 316} 317 318static int magician_set_input(struct snd_kcontrol *kcontrol, 319 struct snd_ctl_elem_value *ucontrol) 320{ 321 if (magician_in_sel == ucontrol->value.integer.value[0]) 322 return 0; 323 324 magician_in_sel = ucontrol->value.integer.value[0]; 325 326 switch (magician_in_sel) { 327 case MAGICIAN_MIC: 328 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1); 329 break; 330 case MAGICIAN_MIC_EXT: 331 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0); 332 } 333 334 return 1; 335} 336 337static int magician_spk_power(struct snd_soc_dapm_widget *w, 338 struct snd_kcontrol *k, int event) 339{ 340 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event)); 341 return 0; 342} 343 344static int magician_hp_power(struct snd_soc_dapm_widget *w, 345 struct snd_kcontrol *k, int event) 346{ 347 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event)); 348 return 0; 349} 350 351static int magician_mic_bias(struct snd_soc_dapm_widget *w, 352 struct snd_kcontrol *k, int event) 353{ 354 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event)); 355 return 0; 356} 357 358/* magician machine dapm widgets */ 359static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = { 360 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power), 361 SND_SOC_DAPM_SPK("Speaker", magician_spk_power), 362 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias), 363 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias), 364}; 365 366/* magician machine audio_map */ 367static const struct snd_soc_dapm_route audio_map[] = { 368 369 /* Headphone connected to VOUTL, VOUTR */ 370 {"Headphone Jack", NULL, "VOUTL"}, 371 {"Headphone Jack", NULL, "VOUTR"}, 372 373 /* Speaker connected to VOUTL, VOUTR */ 374 {"Speaker", NULL, "VOUTL"}, 375 {"Speaker", NULL, "VOUTR"}, 376 377 /* Mics are connected to VINM */ 378 {"VINM", NULL, "Headset Mic"}, 379 {"VINM", NULL, "Call Mic"}, 380}; 381 382static const char *input_select[] = {"Call Mic", "Headset Mic"}; 383static const struct soc_enum magician_in_sel_enum = 384 SOC_ENUM_SINGLE_EXT(2, input_select); 385 386static const struct snd_kcontrol_new uda1380_magician_controls[] = { 387 SOC_SINGLE_BOOL_EXT("Headphone Switch", 388 (unsigned long)&magician_hp_switch, 389 magician_get_hp, magician_set_hp), 390 SOC_SINGLE_BOOL_EXT("Speaker Switch", 391 (unsigned long)&magician_spk_switch, 392 magician_get_spk, magician_set_spk), 393 SOC_ENUM_EXT("Input Select", magician_in_sel_enum, 394 magician_get_input, magician_set_input), 395}; 396 397/* 398 * Logic for a uda1380 as connected on a HTC Magician 399 */ 400static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd) 401{ 402 struct snd_soc_codec *codec = rtd->codec; 403 struct snd_soc_dapm_context *dapm = &codec->dapm; 404 int err; 405 406 /* NC codec pins */ 407 snd_soc_dapm_nc_pin(dapm, "VOUTLHP"); 408 snd_soc_dapm_nc_pin(dapm, "VOUTRHP"); 409 410 /* FIXME: is anything connected here? */ 411 snd_soc_dapm_nc_pin(dapm, "VINL"); 412 snd_soc_dapm_nc_pin(dapm, "VINR"); 413 414 /* Add magician specific controls */ 415 err = snd_soc_add_controls(codec, uda1380_magician_controls, 416 ARRAY_SIZE(uda1380_magician_controls)); 417 if (err < 0) 418 return err; 419 420 /* Add magician specific widgets */ 421 snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets, 422 ARRAY_SIZE(uda1380_dapm_widgets)); 423 424 /* Set up magician specific audio path interconnects */ 425 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 426 427 snd_soc_dapm_sync(dapm); 428 return 0; 429} 430 431/* magician digital audio interface glue - connects codec <--> CPU */ 432static struct snd_soc_dai_link magician_dai[] = { 433{ 434 .name = "uda1380", 435 .stream_name = "UDA1380 Playback", 436 .cpu_dai_name = "pxa-ssp-dai.0", 437 .codec_dai_name = "uda1380-hifi-playback", 438 .platform_name = "pxa-pcm-audio", 439 .codec_name = "uda1380-codec.0-0018", 440 .init = magician_uda1380_init, 441 .ops = &magician_playback_ops, 442}, 443{ 444 .name = "uda1380", 445 .stream_name = "UDA1380 Capture", 446 .cpu_dai_name = "pxa2xx-i2s", 447 .codec_dai_name = "uda1380-hifi-capture", 448 .platform_name = "pxa-pcm-audio", 449 .codec_name = "uda1380-codec.0-0018", 450 .ops = &magician_capture_ops, 451} 452}; 453 454/* magician audio machine driver */ 455static struct snd_soc_card snd_soc_card_magician = { 456 .name = "Magician", 457 .dai_link = magician_dai, 458 .num_links = ARRAY_SIZE(magician_dai), 459 460}; 461 462static struct platform_device *magician_snd_device; 463 464/* 465 * FIXME: move into magician board file once merged into the pxa tree 466 */ 467static struct uda1380_platform_data uda1380_info = { 468 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER, 469 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET, 470 .dac_clk = UDA1380_DAC_CLK_WSPLL, 471}; 472 473static struct i2c_board_info i2c_board_info[] = { 474 { 475 I2C_BOARD_INFO("uda1380", 0x18), 476 .platform_data = &uda1380_info, 477 }, 478}; 479 480static int __init magician_init(void) 481{ 482 int ret; 483 struct i2c_adapter *adapter; 484 struct i2c_client *client; 485 486 if (!machine_is_magician()) 487 return -ENODEV; 488 489 adapter = i2c_get_adapter(0); 490 if (!adapter) 491 return -ENODEV; 492 client = i2c_new_device(adapter, i2c_board_info); 493 i2c_put_adapter(adapter); 494 if (!client) 495 return -ENODEV; 496 497 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER"); 498 if (ret) 499 goto err_request_spk; 500 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER"); 501 if (ret) 502 goto err_request_ep; 503 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER"); 504 if (ret) 505 goto err_request_mic; 506 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0"); 507 if (ret) 508 goto err_request_in_sel0; 509 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1"); 510 if (ret) 511 goto err_request_in_sel1; 512 513 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0); 514 515 magician_snd_device = platform_device_alloc("soc-audio", -1); 516 if (!magician_snd_device) { 517 ret = -ENOMEM; 518 goto err_pdev; 519 } 520 521 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician); 522 ret = platform_device_add(magician_snd_device); 523 if (ret) { 524 platform_device_put(magician_snd_device); 525 goto err_pdev; 526 } 527 528 return 0; 529 530err_pdev: 531 gpio_free(EGPIO_MAGICIAN_IN_SEL1); 532err_request_in_sel1: 533 gpio_free(EGPIO_MAGICIAN_IN_SEL0); 534err_request_in_sel0: 535 gpio_free(EGPIO_MAGICIAN_MIC_POWER); 536err_request_mic: 537 gpio_free(EGPIO_MAGICIAN_EP_POWER); 538err_request_ep: 539 gpio_free(EGPIO_MAGICIAN_SPK_POWER); 540err_request_spk: 541 return ret; 542} 543 544static void __exit magician_exit(void) 545{ 546 platform_device_unregister(magician_snd_device); 547 548 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0); 549 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0); 550 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0); 551 552 gpio_free(EGPIO_MAGICIAN_IN_SEL1); 553 gpio_free(EGPIO_MAGICIAN_IN_SEL0); 554 gpio_free(EGPIO_MAGICIAN_MIC_POWER); 555 gpio_free(EGPIO_MAGICIAN_EP_POWER); 556 gpio_free(EGPIO_MAGICIAN_SPK_POWER); 557} 558 559module_init(magician_init); 560module_exit(magician_exit); 561 562MODULE_AUTHOR("Philipp Zabel"); 563MODULE_DESCRIPTION("ALSA SoC Magician"); 564MODULE_LICENSE("GPL"); 565