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wm8960.c
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linux-6.19.14/sound/soc/codecs/wm8960.c
1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * wm8960.c -- WM8960 ALSA SoC Audio driver 4 * 5 * Copyright 2007-11 Wolfson Microelectronics, plc 6 * 7 * Author: Liam Girdwood 8 */ 9 10#include <linux/module.h> 11#include <linux/moduleparam.h> 12#include <linux/init.h> 13#include <linux/delay.h> 14#include <linux/pm.h> 15#include <linux/clk.h> 16#include <linux/i2c.h> 17#include <linux/acpi.h> 18#include <linux/slab.h> 19#include <sound/core.h> 20#include <sound/pcm.h> 21#include <sound/pcm_params.h> 22#include <sound/soc.h> 23#include <sound/initval.h> 24#include <sound/tlv.h> 25#include <sound/wm8960.h> 26 27#include "wm8960.h" 28 29/* R25 - Power 1 */ 30#define WM8960_VMID_MASK 0x180 31#define WM8960_VREF 0x40 32 33/* R26 - Power 2 */ 34#define WM8960_PWR2_LOUT1 0x40 35#define WM8960_PWR2_ROUT1 0x20 36#define WM8960_PWR2_OUT3 0x02 37 38/* R28 - Anti-pop 1 */ 39#define WM8960_POBCTRL 0x80 40#define WM8960_BUFDCOPEN 0x10 41#define WM8960_BUFIOEN 0x08 42#define WM8960_SOFT_ST 0x04 43#define WM8960_HPSTBY 0x01 44 45/* R29 - Anti-pop 2 */ 46#define WM8960_DISOP 0x40 47#define WM8960_DRES_MASK 0x30 48 49#define WM8960_DSCH_TOUT 600 /* discharge timeout, ms */ 50 51static bool is_pll_freq_available(unsigned int source, unsigned int target); 52static int wm8960_set_pll(struct snd_soc_component *component, 53 unsigned int freq_in, unsigned int freq_out); 54/* 55 * wm8960 register cache 56 * We can't read the WM8960 register space when we are 57 * using 2 wire for device control, so we cache them instead. 58 */ 59static const struct reg_default wm8960_reg_defaults[] = { 60 { 0x0, 0x00a7 }, 61 { 0x1, 0x00a7 }, 62 { 0x2, 0x0000 }, 63 { 0x3, 0x0000 }, 64 { 0x4, 0x0000 }, 65 { 0x5, 0x0008 }, 66 { 0x6, 0x0000 }, 67 { 0x7, 0x000a }, 68 { 0x8, 0x01c0 }, 69 { 0x9, 0x0000 }, 70 { 0xa, 0x00ff }, 71 { 0xb, 0x00ff }, 72 73 { 0x10, 0x0000 }, 74 { 0x11, 0x007b }, 75 { 0x12, 0x0100 }, 76 { 0x13, 0x0032 }, 77 { 0x14, 0x0000 }, 78 { 0x15, 0x00c3 }, 79 { 0x16, 0x00c3 }, 80 { 0x17, 0x01c0 }, 81 { 0x18, 0x0000 }, 82 { 0x19, 0x0000 }, 83 { 0x1a, 0x0000 }, 84 { 0x1b, 0x0000 }, 85 { 0x1c, 0x0000 }, 86 { 0x1d, 0x0000 }, 87 88 { 0x20, 0x0100 }, 89 { 0x21, 0x0100 }, 90 { 0x22, 0x0050 }, 91 92 { 0x25, 0x0050 }, 93 { 0x26, 0x0000 }, 94 { 0x27, 0x0000 }, 95 { 0x28, 0x0000 }, 96 { 0x29, 0x0000 }, 97 { 0x2a, 0x0040 }, 98 { 0x2b, 0x0000 }, 99 { 0x2c, 0x0000 }, 100 { 0x2d, 0x0050 }, 101 { 0x2e, 0x0050 }, 102 { 0x2f, 0x0000 }, 103 { 0x30, 0x0002 }, 104 { 0x31, 0x0037 }, 105 106 { 0x33, 0x0080 }, 107 { 0x34, 0x0008 }, 108 { 0x35, 0x0031 }, 109 { 0x36, 0x0026 }, 110 { 0x37, 0x00e9 }, 111}; 112 113static bool wm8960_volatile(struct device *dev, unsigned int reg) 114{ 115 switch (reg) { 116 case WM8960_RESET: 117 return true; 118 default: 119 return false; 120 } 121} 122 123#define WM8960_NUM_SUPPLIES 5 124static const char *wm8960_supply_names[WM8960_NUM_SUPPLIES] = { 125 "DCVDD", 126 "DBVDD", 127 "AVDD", 128 "SPKVDD1", 129 "SPKVDD2", 130}; 131 132struct wm8960_priv { 133 struct clk *mclk; 134 struct regmap *regmap; 135 int (*set_bias_level)(struct snd_soc_component *, 136 enum snd_soc_bias_level level); 137 struct snd_soc_dapm_widget *lout1; 138 struct snd_soc_dapm_widget *rout1; 139 struct snd_soc_dapm_widget *out3; 140 bool deemph; 141 int lrclk; 142 int bclk; 143 int sysclk; 144 int clk_id; 145 int freq_in; 146 bool is_stream_in_use[2]; 147 struct wm8960_data pdata; 148 ktime_t dsch_start; 149 struct regulator_bulk_data supplies[WM8960_NUM_SUPPLIES]; 150}; 151 152#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0) 153 154/* enumerated controls */ 155static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", 156 "Right Inverted", "Stereo Inversion"}; 157static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"}; 158static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"}; 159static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"}; 160static const char *wm8960_alcmode[] = {"ALC", "Limiter"}; 161static const char *wm8960_adc_data_output_sel[] = { 162 "Left Data = Left ADC; Right Data = Right ADC", 163 "Left Data = Left ADC; Right Data = Left ADC", 164 "Left Data = Right ADC; Right Data = Right ADC", 165 "Left Data = Right ADC; Right Data = Left ADC", 166}; 167static const char *wm8960_dmonomix[] = {"Stereo", "Mono"}; 168static const char *wm8960_dacslope[] = {"Normal", "Sloping"}; 169 170static const struct soc_enum wm8960_enum[] = { 171 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity), 172 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity), 173 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff), 174 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff), 175 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc), 176 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode), 177 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel), 178 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix), 179 SOC_ENUM_SINGLE(WM8960_DACCTL2, 1, 2, wm8960_dacslope), 180}; 181 182static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; 183 184static int wm8960_set_deemph(struct snd_soc_component *component) 185{ 186 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 187 int val, i, best; 188 189 /* If we're using deemphasis select the nearest available sample 190 * rate. 191 */ 192 if (wm8960->deemph) { 193 best = 1; 194 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { 195 if (abs(deemph_settings[i] - wm8960->lrclk) < 196 abs(deemph_settings[best] - wm8960->lrclk)) 197 best = i; 198 } 199 200 val = best << 1; 201 } else { 202 val = 0; 203 } 204 205 dev_dbg(component->dev, "Set deemphasis %d\n", val); 206 207 return snd_soc_component_update_bits(component, WM8960_DACCTL1, 208 0x6, val); 209} 210 211static int wm8960_get_deemph(struct snd_kcontrol *kcontrol, 212 struct snd_ctl_elem_value *ucontrol) 213{ 214 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 215 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 216 217 ucontrol->value.integer.value[0] = wm8960->deemph; 218 return 0; 219} 220 221static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, 222 struct snd_ctl_elem_value *ucontrol) 223{ 224 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 225 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 226 unsigned int deemph = ucontrol->value.integer.value[0]; 227 228 if (deemph > 1) 229 return -EINVAL; 230 231 wm8960->deemph = deemph; 232 233 return wm8960_set_deemph(component); 234} 235 236static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); 237static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0); 238static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); 239static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0); 240static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); 241static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1); 242static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv, 243 0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0), 244 2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0), 245); 246 247static const struct snd_kcontrol_new wm8960_snd_controls[] = { 248SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL, 249 0, 63, 0, inpga_tlv), 250SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL, 251 6, 1, 0), 252SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL, 253 7, 1, 1), 254 255SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume", 256 WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv), 257SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume", 258 WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv), 259SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume", 260 WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv), 261SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume", 262 WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv), 263SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume", 264 WM8960_RINPATH, 4, 3, 0, micboost_tlv), 265SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume", 266 WM8960_LINPATH, 4, 3, 0, micboost_tlv), 267 268SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC, 269 0, 255, 0, dac_tlv), 270 271SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1, 272 0, 127, 0, out_tlv), 273SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1, 274 7, 1, 0), 275 276SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2, 277 0, 127, 0, out_tlv), 278SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2, 279 7, 1, 0), 280SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0), 281SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0), 282 283SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), 284SOC_ENUM("ADC Polarity", wm8960_enum[0]), 285SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), 286 287SOC_ENUM("DAC Polarity", wm8960_enum[1]), 288SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 289 wm8960_get_deemph, wm8960_put_deemph), 290 291SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]), 292SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]), 293SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0), 294SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0), 295 296SOC_ENUM("ALC Function", wm8960_enum[4]), 297SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0), 298SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1), 299SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0), 300SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0), 301SOC_ENUM("ALC Mode", wm8960_enum[5]), 302SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0), 303SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0), 304 305SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0), 306SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0), 307 308SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC, 309 0, 255, 0, adc_tlv), 310 311SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume", 312 WM8960_BYPASS1, 4, 7, 1, bypass_tlv), 313SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume", 314 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv), 315SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume", 316 WM8960_BYPASS2, 4, 7, 1, bypass_tlv), 317SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume", 318 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv), 319 320SOC_ENUM("ADC Data Output Select", wm8960_enum[6]), 321SOC_ENUM("DAC Mono Mix", wm8960_enum[7]), 322SOC_ENUM("DAC Filter Characteristics", wm8960_enum[8]), 323}; 324 325static const struct snd_kcontrol_new wm8960_lin_boost[] = { 326SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0), 327SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0), 328SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0), 329}; 330 331static const struct snd_kcontrol_new wm8960_lin[] = { 332SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0), 333}; 334 335static const struct snd_kcontrol_new wm8960_rin_boost[] = { 336SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0), 337SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0), 338SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0), 339}; 340 341static const struct snd_kcontrol_new wm8960_rin[] = { 342SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0), 343}; 344 345static const struct snd_kcontrol_new wm8960_loutput_mixer[] = { 346SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0), 347SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0), 348SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0), 349}; 350 351static const struct snd_kcontrol_new wm8960_routput_mixer[] = { 352SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0), 353SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0), 354SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0), 355}; 356 357static const struct snd_kcontrol_new wm8960_mono_out[] = { 358SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0), 359SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0), 360}; 361 362static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = { 363SND_SOC_DAPM_INPUT("LINPUT1"), 364SND_SOC_DAPM_INPUT("RINPUT1"), 365SND_SOC_DAPM_INPUT("LINPUT2"), 366SND_SOC_DAPM_INPUT("RINPUT2"), 367SND_SOC_DAPM_INPUT("LINPUT3"), 368SND_SOC_DAPM_INPUT("RINPUT3"), 369 370SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0), 371 372SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0, 373 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)), 374SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0, 375 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)), 376 377SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0, 378 wm8960_lin, ARRAY_SIZE(wm8960_lin)), 379SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0, 380 wm8960_rin, ARRAY_SIZE(wm8960_rin)), 381 382SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0), 383SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0), 384 385SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0), 386SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0), 387 388SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0, 389 &wm8960_loutput_mixer[0], 390 ARRAY_SIZE(wm8960_loutput_mixer)), 391SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0, 392 &wm8960_routput_mixer[0], 393 ARRAY_SIZE(wm8960_routput_mixer)), 394 395SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0), 396SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0), 397 398SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0), 399SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0), 400 401SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0), 402SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0), 403 404SND_SOC_DAPM_OUTPUT("SPK_LP"), 405SND_SOC_DAPM_OUTPUT("SPK_LN"), 406SND_SOC_DAPM_OUTPUT("HP_L"), 407SND_SOC_DAPM_OUTPUT("HP_R"), 408SND_SOC_DAPM_OUTPUT("SPK_RP"), 409SND_SOC_DAPM_OUTPUT("SPK_RN"), 410SND_SOC_DAPM_OUTPUT("OUT3"), 411}; 412 413static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = { 414SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0, 415 &wm8960_mono_out[0], 416 ARRAY_SIZE(wm8960_mono_out)), 417}; 418 419/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */ 420static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = { 421SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0), 422}; 423 424static const struct snd_soc_dapm_route audio_paths[] = { 425 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" }, 426 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" }, 427 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" }, 428 429 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer" }, 430 { "Left Input Mixer", "Boost Switch", "LINPUT1" }, /* Really Boost Switch */ 431 { "Left Input Mixer", NULL, "LINPUT2" }, 432 { "Left Input Mixer", NULL, "LINPUT3" }, 433 434 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" }, 435 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" }, 436 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" }, 437 438 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer" }, 439 { "Right Input Mixer", "Boost Switch", "RINPUT1" }, /* Really Boost Switch */ 440 { "Right Input Mixer", NULL, "RINPUT2" }, 441 { "Right Input Mixer", NULL, "RINPUT3" }, 442 443 { "Left ADC", NULL, "Left Input Mixer" }, 444 { "Right ADC", NULL, "Right Input Mixer" }, 445 446 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" }, 447 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" }, 448 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" }, 449 450 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" }, 451 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" }, 452 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" }, 453 454 { "LOUT1 PGA", NULL, "Left Output Mixer" }, 455 { "ROUT1 PGA", NULL, "Right Output Mixer" }, 456 457 { "HP_L", NULL, "LOUT1 PGA" }, 458 { "HP_R", NULL, "ROUT1 PGA" }, 459 460 { "Left Speaker PGA", NULL, "Left Output Mixer" }, 461 { "Right Speaker PGA", NULL, "Right Output Mixer" }, 462 463 { "Left Speaker Output", NULL, "Left Speaker PGA" }, 464 { "Right Speaker Output", NULL, "Right Speaker PGA" }, 465 466 { "SPK_LN", NULL, "Left Speaker Output" }, 467 { "SPK_LP", NULL, "Left Speaker Output" }, 468 { "SPK_RN", NULL, "Right Speaker Output" }, 469 { "SPK_RP", NULL, "Right Speaker Output" }, 470}; 471 472static const struct snd_soc_dapm_route audio_paths_out3[] = { 473 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" }, 474 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" }, 475 476 { "OUT3", NULL, "Mono Output Mixer", } 477}; 478 479static const struct snd_soc_dapm_route audio_paths_capless[] = { 480 { "HP_L", NULL, "OUT3 VMID" }, 481 { "HP_R", NULL, "OUT3 VMID" }, 482 483 { "OUT3 VMID", NULL, "Left Output Mixer" }, 484 { "OUT3 VMID", NULL, "Right Output Mixer" }, 485}; 486 487static int wm8960_add_widgets(struct snd_soc_component *component) 488{ 489 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 490 struct wm8960_data *pdata = &wm8960->pdata; 491 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); 492 struct snd_soc_dapm_widget *w; 493 494 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets, 495 ARRAY_SIZE(wm8960_dapm_widgets)); 496 497 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths)); 498 499 /* In capless mode OUT3 is used to provide VMID for the 500 * headphone outputs, otherwise it is used as a mono mixer. 501 */ 502 if (pdata && pdata->capless) { 503 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless, 504 ARRAY_SIZE(wm8960_dapm_widgets_capless)); 505 506 snd_soc_dapm_add_routes(dapm, audio_paths_capless, 507 ARRAY_SIZE(audio_paths_capless)); 508 } else { 509 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3, 510 ARRAY_SIZE(wm8960_dapm_widgets_out3)); 511 512 snd_soc_dapm_add_routes(dapm, audio_paths_out3, 513 ARRAY_SIZE(audio_paths_out3)); 514 } 515 516 /* We need to power up the headphone output stage out of 517 * sequence for capless mode. To save scanning the widget 518 * list each time to find the desired power state do so now 519 * and save the result. 520 */ 521 list_for_each_entry(w, &component->card->widgets, list) { 522 if (w->dapm != dapm) 523 continue; 524 if (strcmp(w->name, "LOUT1 PGA") == 0) 525 wm8960->lout1 = w; 526 if (strcmp(w->name, "ROUT1 PGA") == 0) 527 wm8960->rout1 = w; 528 if (strcmp(w->name, "OUT3 VMID") == 0) 529 wm8960->out3 = w; 530 } 531 532 return 0; 533} 534 535static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai, 536 unsigned int fmt) 537{ 538 struct snd_soc_component *component = codec_dai->component; 539 u16 iface = 0; 540 541 /* set master/slave audio interface */ 542 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 543 case SND_SOC_DAIFMT_CBP_CFP: 544 iface |= 0x0040; 545 break; 546 case SND_SOC_DAIFMT_CBC_CFC: 547 break; 548 default: 549 return -EINVAL; 550 } 551 552 /* interface format */ 553 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 554 case SND_SOC_DAIFMT_I2S: 555 iface |= 0x0002; 556 break; 557 case SND_SOC_DAIFMT_RIGHT_J: 558 break; 559 case SND_SOC_DAIFMT_LEFT_J: 560 iface |= 0x0001; 561 break; 562 case SND_SOC_DAIFMT_DSP_A: 563 iface |= 0x0003; 564 break; 565 case SND_SOC_DAIFMT_DSP_B: 566 iface |= 0x0013; 567 break; 568 default: 569 return -EINVAL; 570 } 571 572 /* clock inversion */ 573 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 574 case SND_SOC_DAIFMT_NB_NF: 575 break; 576 case SND_SOC_DAIFMT_IB_IF: 577 iface |= 0x0090; 578 break; 579 case SND_SOC_DAIFMT_IB_NF: 580 iface |= 0x0080; 581 break; 582 case SND_SOC_DAIFMT_NB_IF: 583 iface |= 0x0010; 584 break; 585 default: 586 return -EINVAL; 587 } 588 589 /* set iface */ 590 snd_soc_component_write(component, WM8960_IFACE1, iface); 591 return 0; 592} 593 594static struct { 595 int rate; 596 unsigned int val; 597} alc_rates[] = { 598 { 48000, 0 }, 599 { 44100, 0 }, 600 { 32000, 1 }, 601 { 22050, 2 }, 602 { 24000, 2 }, 603 { 16000, 3 }, 604 { 11025, 4 }, 605 { 12000, 4 }, 606 { 8000, 5 }, 607}; 608 609/* -1 for reserved value */ 610static const int sysclk_divs[] = { 1, -1, 2, -1 }; 611 612/* Multiply 256 for internal 256 div */ 613static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 }; 614 615/* Multiply 10 to eliminate decimials */ 616static const int bclk_divs[] = { 617 10, 15, 20, 30, 40, 55, 60, 80, 110, 618 120, 160, 220, 240, 320, 320, 320 619}; 620 621/** 622 * wm8960_configure_sysclk - checks if there is a sysclk frequency available 623 * The sysclk must be chosen such that: 624 * - sysclk = MCLK / sysclk_divs 625 * - lrclk = sysclk / dac_divs 626 * - 10 * bclk = sysclk / bclk_divs 627 * 628 * @wm8960: codec private data 629 * @mclk: MCLK used to derive sysclk 630 * @sysclk_idx: sysclk_divs index for found sysclk 631 * @dac_idx: dac_divs index for found lrclk 632 * @bclk_idx: bclk_divs index for found bclk 633 * 634 * Returns: 635 * -1, in case no sysclk frequency available found 636 * >=0, in case we could derive bclk and lrclk from sysclk using 637 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers 638 */ 639static 640int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk, 641 int *sysclk_idx, int *dac_idx, int *bclk_idx) 642{ 643 int sysclk, bclk, lrclk; 644 int i, j, k; 645 int diff; 646 647 /* marker for no match */ 648 *bclk_idx = -1; 649 650 bclk = wm8960->bclk; 651 lrclk = wm8960->lrclk; 652 653 /* check if the sysclk frequency is available. */ 654 for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) { 655 if (sysclk_divs[i] == -1) 656 continue; 657 sysclk = mclk / sysclk_divs[i]; 658 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) { 659 if (sysclk != dac_divs[j] * lrclk) 660 continue; 661 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) { 662 diff = sysclk - bclk * bclk_divs[k] / 10; 663 if (diff == 0) { 664 *sysclk_idx = i; 665 *dac_idx = j; 666 *bclk_idx = k; 667 break; 668 } 669 } 670 if (k != ARRAY_SIZE(bclk_divs)) 671 break; 672 } 673 if (j != ARRAY_SIZE(dac_divs)) 674 break; 675 } 676 return *bclk_idx; 677} 678 679/** 680 * wm8960_configure_pll - checks if there is a PLL out frequency available 681 * The PLL out frequency must be chosen such that: 682 * - sysclk = lrclk * dac_divs 683 * - freq_out = sysclk * sysclk_divs 684 * - 10 * sysclk = bclk * bclk_divs 685 * 686 * If we cannot find an exact match for (sysclk, lrclk, bclk) 687 * triplet, we relax the bclk such that bclk is chosen as the 688 * closest available frequency greater than expected bclk. 689 * 690 * @component: component structure 691 * @freq_in: input frequency used to derive freq out via PLL 692 * @sysclk_idx: sysclk_divs index for found sysclk 693 * @dac_idx: dac_divs index for found lrclk 694 * @bclk_idx: bclk_divs index for found bclk 695 * 696 * Returns: 697 * < 0, in case no PLL frequency out available was found 698 * >=0, in case we could derive bclk, lrclk, sysclk from PLL out using 699 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers 700 */ 701static 702int wm8960_configure_pll(struct snd_soc_component *component, int freq_in, 703 int *sysclk_idx, int *dac_idx, int *bclk_idx) 704{ 705 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 706 int sysclk, bclk, lrclk, freq_out; 707 int diff, closest, best_freq_out; 708 int i, j, k; 709 710 bclk = wm8960->bclk; 711 lrclk = wm8960->lrclk; 712 closest = freq_in; 713 714 best_freq_out = -EINVAL; 715 *sysclk_idx = *dac_idx = *bclk_idx = -1; 716 717 /* 718 * From Datasheet, the PLL performs best when f2 is between 719 * 90MHz and 100MHz, the desired sysclk output is 11.2896MHz 720 * or 12.288MHz, then sysclkdiv = 2 is the best choice. 721 * So search sysclk_divs from 2 to 1 other than from 1 to 2. 722 */ 723 for (i = ARRAY_SIZE(sysclk_divs) - 1; i >= 0; --i) { 724 if (sysclk_divs[i] == -1) 725 continue; 726 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) { 727 sysclk = lrclk * dac_divs[j]; 728 freq_out = sysclk * sysclk_divs[i]; 729 730 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) { 731 if (!is_pll_freq_available(freq_in, freq_out)) 732 continue; 733 734 diff = sysclk - bclk * bclk_divs[k] / 10; 735 if (diff == 0) { 736 *sysclk_idx = i; 737 *dac_idx = j; 738 *bclk_idx = k; 739 return freq_out; 740 } 741 if (diff > 0 && closest > diff) { 742 *sysclk_idx = i; 743 *dac_idx = j; 744 *bclk_idx = k; 745 closest = diff; 746 best_freq_out = freq_out; 747 } 748 } 749 } 750 } 751 752 return best_freq_out; 753} 754static int wm8960_configure_clocking(struct snd_soc_component *component) 755{ 756 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 757 int freq_out, freq_in; 758 u16 iface1 = snd_soc_component_read(component, WM8960_IFACE1); 759 int i, j, k; 760 int ret; 761 762 /* 763 * For Slave mode clocking should still be configured, 764 * so this if statement should be removed, but some platform 765 * may not work if the sysclk is not configured, to avoid such 766 * compatible issue, just add '!wm8960->sysclk' condition in 767 * this if statement. 768 */ 769 if (!(iface1 & (1 << 6)) && !wm8960->sysclk) { 770 dev_warn(component->dev, 771 "slave mode, but proceeding with no clock configuration\n"); 772 return 0; 773 } 774 775 if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) { 776 dev_err(component->dev, "No MCLK configured\n"); 777 return -EINVAL; 778 } 779 780 freq_in = wm8960->freq_in; 781 /* 782 * If it's sysclk auto mode, check if the MCLK can provide sysclk or 783 * not. If MCLK can provide sysclk, using MCLK to provide sysclk 784 * directly. Otherwise, auto select a available pll out frequency 785 * and set PLL. 786 */ 787 if (wm8960->clk_id == WM8960_SYSCLK_AUTO) { 788 /* disable the PLL and using MCLK to provide sysclk */ 789 wm8960_set_pll(component, 0, 0); 790 freq_out = freq_in; 791 } else if (wm8960->sysclk) { 792 freq_out = wm8960->sysclk; 793 } else { 794 dev_err(component->dev, "No SYSCLK configured\n"); 795 return -EINVAL; 796 } 797 798 if (wm8960->clk_id != WM8960_SYSCLK_PLL) { 799 ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k); 800 if (ret >= 0) { 801 goto configure_clock; 802 } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) { 803 dev_err(component->dev, "failed to configure clock\n"); 804 return -EINVAL; 805 } 806 } 807 808 freq_out = wm8960_configure_pll(component, freq_in, &i, &j, &k); 809 if (freq_out < 0) { 810 dev_err(component->dev, "failed to configure clock via PLL\n"); 811 return freq_out; 812 } 813 wm8960_set_pll(component, freq_in, freq_out); 814 815configure_clock: 816 /* configure sysclk clock */ 817 snd_soc_component_update_bits(component, WM8960_CLOCK1, 3 << 1, i << 1); 818 819 /* configure frame clock */ 820 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 3, j << 3); 821 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 6, j << 6); 822 823 /* configure bit clock */ 824 snd_soc_component_update_bits(component, WM8960_CLOCK2, 0xf, k); 825 826 return 0; 827} 828 829static int wm8960_hw_params(struct snd_pcm_substream *substream, 830 struct snd_pcm_hw_params *params, 831 struct snd_soc_dai *dai) 832{ 833 struct snd_soc_component *component = dai->component; 834 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 835 u16 iface = snd_soc_component_read(component, WM8960_IFACE1) & 0xfff3; 836 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 837 int i; 838 839 wm8960->bclk = snd_soc_params_to_bclk(params); 840 if (params_channels(params) == 1) 841 wm8960->bclk *= 2; 842 843 /* bit size */ 844 switch (params_width(params)) { 845 case 16: 846 break; 847 case 20: 848 iface |= 0x0004; 849 break; 850 case 24: 851 iface |= 0x0008; 852 break; 853 case 32: 854 /* right justify mode does not support 32 word length */ 855 if ((iface & 0x3) != 0) { 856 iface |= 0x000c; 857 break; 858 } 859 fallthrough; 860 default: 861 dev_err(component->dev, "unsupported width %d\n", 862 params_width(params)); 863 return -EINVAL; 864 } 865 866 wm8960->lrclk = params_rate(params); 867 /* Update filters for the new rate */ 868 if (tx) { 869 wm8960_set_deemph(component); 870 } else { 871 for (i = 0; i < ARRAY_SIZE(alc_rates); i++) 872 if (alc_rates[i].rate == params_rate(params)) 873 snd_soc_component_update_bits(component, 874 WM8960_ADDCTL3, 0x7, 875 alc_rates[i].val); 876 } 877 878 /* set iface */ 879 snd_soc_component_write(component, WM8960_IFACE1, iface); 880 881 wm8960->is_stream_in_use[tx] = true; 882 883 if (!wm8960->is_stream_in_use[!tx]) 884 return wm8960_configure_clocking(component); 885 886 return 0; 887} 888 889static int wm8960_hw_free(struct snd_pcm_substream *substream, 890 struct snd_soc_dai *dai) 891{ 892 struct snd_soc_component *component = dai->component; 893 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 894 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 895 896 wm8960->is_stream_in_use[tx] = false; 897 898 return 0; 899} 900 901static int wm8960_mute(struct snd_soc_dai *dai, int mute, int direction) 902{ 903 struct snd_soc_component *component = dai->component; 904 905 if (mute) 906 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0x8); 907 else 908 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0); 909 return 0; 910} 911 912static int wm8960_set_bias_level_out3(struct snd_soc_component *component, 913 enum snd_soc_bias_level level) 914{ 915 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 916 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); 917 u16 pm2 = snd_soc_component_read(component, WM8960_POWER2); 918 int ret; 919 ktime_t tout; 920 921 switch (level) { 922 case SND_SOC_BIAS_ON: 923 break; 924 925 case SND_SOC_BIAS_PREPARE: 926 switch (snd_soc_dapm_get_bias_level(dapm)) { 927 case SND_SOC_BIAS_STANDBY: 928 if (!IS_ERR(wm8960->mclk)) { 929 ret = clk_prepare_enable(wm8960->mclk); 930 if (ret) { 931 dev_err(component->dev, 932 "Failed to enable MCLK: %d\n", 933 ret); 934 return ret; 935 } 936 } 937 938 ret = wm8960_configure_clocking(component); 939 if (ret) 940 return ret; 941 942 /* Set VMID to 2x50k */ 943 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x80); 944 break; 945 946 case SND_SOC_BIAS_ON: 947 /* 948 * If it's sysclk auto mode, and the pll is enabled, 949 * disable the pll 950 */ 951 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1)) 952 wm8960_set_pll(component, 0, 0); 953 954 if (!IS_ERR(wm8960->mclk)) 955 clk_disable_unprepare(wm8960->mclk); 956 break; 957 958 default: 959 break; 960 } 961 962 break; 963 964 case SND_SOC_BIAS_STANDBY: 965 if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) { 966 /* ensure discharge is complete */ 967 tout = WM8960_DSCH_TOUT - ktime_ms_delta(ktime_get(), wm8960->dsch_start); 968 if (tout > 0) 969 msleep(tout); 970 971 regcache_sync(wm8960->regmap); 972 973 /* Enable anti-pop features */ 974 snd_soc_component_write(component, WM8960_APOP1, 975 WM8960_POBCTRL | WM8960_SOFT_ST | 976 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 977 978 /* Enable & ramp VMID at 2x50k */ 979 snd_soc_component_update_bits(component, WM8960_POWER1, 0x80, 0x80); 980 msleep(100); 981 982 /* Enable VREF */ 983 snd_soc_component_update_bits(component, WM8960_POWER1, WM8960_VREF, 984 WM8960_VREF); 985 986 /* Disable anti-pop features */ 987 snd_soc_component_write(component, WM8960_APOP1, WM8960_BUFIOEN); 988 } 989 990 /* Set VMID to 2x250k */ 991 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x100); 992 break; 993 994 case SND_SOC_BIAS_OFF: 995 /* Enable anti-pop features */ 996 snd_soc_component_write(component, WM8960_APOP1, 997 WM8960_POBCTRL | WM8960_SOFT_ST | 998 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 999 1000 /* Disable VMID and VREF, mark discharge */ 1001 snd_soc_component_write(component, WM8960_POWER1, 0); 1002 wm8960->dsch_start = ktime_get(); 1003 break; 1004 } 1005 1006 return 0; 1007} 1008 1009static int wm8960_set_bias_level_capless(struct snd_soc_component *component, 1010 enum snd_soc_bias_level level) 1011{ 1012 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 1013 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); 1014 u16 pm2 = snd_soc_component_read(component, WM8960_POWER2); 1015 int reg, ret; 1016 1017 switch (level) { 1018 case SND_SOC_BIAS_ON: 1019 break; 1020 1021 case SND_SOC_BIAS_PREPARE: 1022 switch (snd_soc_dapm_get_bias_level(dapm)) { 1023 case SND_SOC_BIAS_STANDBY: 1024 /* Enable anti pop mode */ 1025 snd_soc_component_update_bits(component, WM8960_APOP1, 1026 WM8960_POBCTRL | WM8960_SOFT_ST | 1027 WM8960_BUFDCOPEN, 1028 WM8960_POBCTRL | WM8960_SOFT_ST | 1029 WM8960_BUFDCOPEN); 1030 1031 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ 1032 reg = 0; 1033 if (wm8960->lout1 && wm8960->lout1->power) 1034 reg |= WM8960_PWR2_LOUT1; 1035 if (wm8960->rout1 && wm8960->rout1->power) 1036 reg |= WM8960_PWR2_ROUT1; 1037 if (wm8960->out3 && wm8960->out3->power) 1038 reg |= WM8960_PWR2_OUT3; 1039 snd_soc_component_update_bits(component, WM8960_POWER2, 1040 WM8960_PWR2_LOUT1 | 1041 WM8960_PWR2_ROUT1 | 1042 WM8960_PWR2_OUT3, reg); 1043 1044 /* Enable VMID at 2*50k */ 1045 snd_soc_component_update_bits(component, WM8960_POWER1, 1046 WM8960_VMID_MASK, 0x80); 1047 1048 /* Ramp */ 1049 msleep(100); 1050 1051 /* Enable VREF */ 1052 snd_soc_component_update_bits(component, WM8960_POWER1, 1053 WM8960_VREF, WM8960_VREF); 1054 1055 msleep(100); 1056 1057 if (!IS_ERR(wm8960->mclk)) { 1058 ret = clk_prepare_enable(wm8960->mclk); 1059 if (ret) { 1060 dev_err(component->dev, 1061 "Failed to enable MCLK: %d\n", 1062 ret); 1063 return ret; 1064 } 1065 } 1066 1067 ret = wm8960_configure_clocking(component); 1068 if (ret) 1069 return ret; 1070 1071 break; 1072 1073 case SND_SOC_BIAS_ON: 1074 /* 1075 * If it's sysclk auto mode, and the pll is enabled, 1076 * disable the pll 1077 */ 1078 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1)) 1079 wm8960_set_pll(component, 0, 0); 1080 1081 if (!IS_ERR(wm8960->mclk)) 1082 clk_disable_unprepare(wm8960->mclk); 1083 1084 /* Enable anti-pop mode */ 1085 snd_soc_component_update_bits(component, WM8960_APOP1, 1086 WM8960_POBCTRL | WM8960_SOFT_ST | 1087 WM8960_BUFDCOPEN, 1088 WM8960_POBCTRL | WM8960_SOFT_ST | 1089 WM8960_BUFDCOPEN); 1090 1091 /* Disable VMID and VREF */ 1092 snd_soc_component_update_bits(component, WM8960_POWER1, 1093 WM8960_VREF | WM8960_VMID_MASK, 0); 1094 break; 1095 1096 case SND_SOC_BIAS_OFF: 1097 regcache_sync(wm8960->regmap); 1098 break; 1099 default: 1100 break; 1101 } 1102 break; 1103 1104 case SND_SOC_BIAS_STANDBY: 1105 switch (snd_soc_dapm_get_bias_level(dapm)) { 1106 case SND_SOC_BIAS_PREPARE: 1107 /* Disable HP discharge */ 1108 snd_soc_component_update_bits(component, WM8960_APOP2, 1109 WM8960_DISOP | WM8960_DRES_MASK, 1110 0); 1111 1112 /* Disable anti-pop features */ 1113 snd_soc_component_update_bits(component, WM8960_APOP1, 1114 WM8960_POBCTRL | WM8960_SOFT_ST | 1115 WM8960_BUFDCOPEN, 1116 WM8960_POBCTRL | WM8960_SOFT_ST | 1117 WM8960_BUFDCOPEN); 1118 break; 1119 1120 default: 1121 break; 1122 } 1123 break; 1124 1125 case SND_SOC_BIAS_OFF: 1126 break; 1127 } 1128 1129 return 0; 1130} 1131 1132/* PLL divisors */ 1133struct _pll_div { 1134 u32 pre_div:1; 1135 u32 n:4; 1136 u32 k:24; 1137}; 1138 1139static bool is_pll_freq_available(unsigned int source, unsigned int target) 1140{ 1141 unsigned int Ndiv; 1142 1143 if (source == 0 || target == 0) 1144 return false; 1145 1146 /* Scale up target to PLL operating frequency */ 1147 target *= 4; 1148 Ndiv = target / source; 1149 1150 if (Ndiv < 6) { 1151 source >>= 1; 1152 Ndiv = target / source; 1153 } 1154 1155 if ((Ndiv < 6) || (Ndiv > 12)) 1156 return false; 1157 1158 return true; 1159} 1160 1161/* The size in bits of the pll divide multiplied by 10 1162 * to allow rounding later */ 1163#define FIXED_PLL_SIZE ((1 << 24) * 10) 1164 1165static int pll_factors(unsigned int source, unsigned int target, 1166 struct _pll_div *pll_div) 1167{ 1168 unsigned long long Kpart; 1169 unsigned int K, Ndiv, Nmod; 1170 1171 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); 1172 1173 /* Scale up target to PLL operating frequency */ 1174 target *= 4; 1175 1176 Ndiv = target / source; 1177 if (Ndiv < 6) { 1178 source >>= 1; 1179 pll_div->pre_div = 1; 1180 Ndiv = target / source; 1181 } else 1182 pll_div->pre_div = 0; 1183 1184 if ((Ndiv < 6) || (Ndiv > 12)) { 1185 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); 1186 return -EINVAL; 1187 } 1188 1189 pll_div->n = Ndiv; 1190 Nmod = target % source; 1191 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 1192 1193 do_div(Kpart, source); 1194 1195 K = Kpart & 0xFFFFFFFF; 1196 1197 /* Check if we need to round */ 1198 if ((K % 10) >= 5) 1199 K += 5; 1200 1201 /* Move down to proper range now rounding is done */ 1202 K /= 10; 1203 1204 pll_div->k = K; 1205 1206 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", 1207 pll_div->n, pll_div->k, pll_div->pre_div); 1208 1209 return 0; 1210} 1211 1212static int wm8960_set_pll(struct snd_soc_component *component, 1213 unsigned int freq_in, unsigned int freq_out) 1214{ 1215 u16 reg; 1216 static struct _pll_div pll_div; 1217 int ret; 1218 1219 if (freq_in && freq_out) { 1220 ret = pll_factors(freq_in, freq_out, &pll_div); 1221 if (ret != 0) 1222 return ret; 1223 } 1224 1225 /* Disable the PLL: even if we are changing the frequency the 1226 * PLL needs to be disabled while we do so. */ 1227 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0); 1228 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0); 1229 1230 if (!freq_in || !freq_out) 1231 return 0; 1232 1233 reg = snd_soc_component_read(component, WM8960_PLL1) & ~0x3f; 1234 reg |= pll_div.pre_div << 4; 1235 reg |= pll_div.n; 1236 1237 if (pll_div.k) { 1238 reg |= 0x20; 1239 1240 snd_soc_component_write(component, WM8960_PLL2, (pll_div.k >> 16) & 0xff); 1241 snd_soc_component_write(component, WM8960_PLL3, (pll_div.k >> 8) & 0xff); 1242 snd_soc_component_write(component, WM8960_PLL4, pll_div.k & 0xff); 1243 } 1244 snd_soc_component_write(component, WM8960_PLL1, reg); 1245 1246 /* Turn it on */ 1247 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0x1); 1248 msleep(250); 1249 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0x1); 1250 1251 return 0; 1252} 1253 1254static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 1255 int source, unsigned int freq_in, unsigned int freq_out) 1256{ 1257 struct snd_soc_component *component = codec_dai->component; 1258 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 1259 1260 wm8960->freq_in = freq_in; 1261 1262 if (pll_id == WM8960_SYSCLK_AUTO) 1263 return 0; 1264 1265 return wm8960_set_pll(component, freq_in, freq_out); 1266} 1267 1268static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 1269 int div_id, int div) 1270{ 1271 struct snd_soc_component *component = codec_dai->component; 1272 u16 reg; 1273 1274 switch (div_id) { 1275 case WM8960_SYSCLKDIV: 1276 reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1f9; 1277 snd_soc_component_write(component, WM8960_CLOCK1, reg | div); 1278 break; 1279 case WM8960_DACDIV: 1280 reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1c7; 1281 snd_soc_component_write(component, WM8960_CLOCK1, reg | div); 1282 break; 1283 case WM8960_OPCLKDIV: 1284 reg = snd_soc_component_read(component, WM8960_PLL1) & 0x03f; 1285 snd_soc_component_write(component, WM8960_PLL1, reg | div); 1286 break; 1287 case WM8960_DCLKDIV: 1288 reg = snd_soc_component_read(component, WM8960_CLOCK2) & 0x03f; 1289 snd_soc_component_write(component, WM8960_CLOCK2, reg | div); 1290 break; 1291 case WM8960_TOCLKSEL: 1292 reg = snd_soc_component_read(component, WM8960_ADDCTL1) & 0x1fd; 1293 snd_soc_component_write(component, WM8960_ADDCTL1, reg | div); 1294 break; 1295 default: 1296 return -EINVAL; 1297 } 1298 1299 return 0; 1300} 1301 1302static int wm8960_set_bias_level(struct snd_soc_component *component, 1303 enum snd_soc_bias_level level) 1304{ 1305 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 1306 1307 return wm8960->set_bias_level(component, level); 1308} 1309 1310static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, 1311 unsigned int freq, int dir) 1312{ 1313 struct snd_soc_component *component = dai->component; 1314 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 1315 1316 switch (clk_id) { 1317 case WM8960_SYSCLK_MCLK: 1318 snd_soc_component_update_bits(component, WM8960_CLOCK1, 1319 0x1, WM8960_SYSCLK_MCLK); 1320 break; 1321 case WM8960_SYSCLK_PLL: 1322 snd_soc_component_update_bits(component, WM8960_CLOCK1, 1323 0x1, WM8960_SYSCLK_PLL); 1324 break; 1325 case WM8960_SYSCLK_AUTO: 1326 break; 1327 default: 1328 return -EINVAL; 1329 } 1330 1331 wm8960->sysclk = freq; 1332 wm8960->clk_id = clk_id; 1333 1334 return 0; 1335} 1336 1337#define WM8960_RATES SNDRV_PCM_RATE_8000_48000 1338 1339#define WM8960_FORMATS \ 1340 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 1341 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 1342 1343static const struct snd_soc_dai_ops wm8960_dai_ops = { 1344 .hw_params = wm8960_hw_params, 1345 .hw_free = wm8960_hw_free, 1346 .mute_stream = wm8960_mute, 1347 .set_fmt = wm8960_set_dai_fmt, 1348 .set_clkdiv = wm8960_set_dai_clkdiv, 1349 .set_pll = wm8960_set_dai_pll, 1350 .set_sysclk = wm8960_set_dai_sysclk, 1351 .no_capture_mute = 1, 1352}; 1353 1354static struct snd_soc_dai_driver wm8960_dai = { 1355 .name = "wm8960-hifi", 1356 .playback = { 1357 .stream_name = "Playback", 1358 .channels_min = 1, 1359 .channels_max = 2, 1360 .rates = WM8960_RATES, 1361 .formats = WM8960_FORMATS,}, 1362 .capture = { 1363 .stream_name = "Capture", 1364 .channels_min = 1, 1365 .channels_max = 2, 1366 .rates = WM8960_RATES, 1367 .formats = WM8960_FORMATS,}, 1368 .ops = &wm8960_dai_ops, 1369 .symmetric_rate = 1, 1370}; 1371 1372static int wm8960_probe(struct snd_soc_component *component) 1373{ 1374 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); 1375 struct wm8960_data *pdata = &wm8960->pdata; 1376 1377 if (pdata->capless) 1378 wm8960->set_bias_level = wm8960_set_bias_level_capless; 1379 else 1380 wm8960->set_bias_level = wm8960_set_bias_level_out3; 1381 1382 snd_soc_add_component_controls(component, wm8960_snd_controls, 1383 ARRAY_SIZE(wm8960_snd_controls)); 1384 wm8960_add_widgets(component); 1385 1386 return 0; 1387} 1388 1389static const struct snd_soc_component_driver soc_component_dev_wm8960 = { 1390 .probe = wm8960_probe, 1391 .set_bias_level = wm8960_set_bias_level, 1392 .suspend_bias_off = 1, 1393 .idle_bias_on = 1, 1394 .use_pmdown_time = 1, 1395 .endianness = 1, 1396}; 1397 1398static const struct regmap_config wm8960_regmap = { 1399 .reg_bits = 7, 1400 .val_bits = 9, 1401 .max_register = WM8960_PLL4, 1402 1403 .reg_defaults = wm8960_reg_defaults, 1404 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), 1405 .cache_type = REGCACHE_MAPLE, 1406 1407 .volatile_reg = wm8960_volatile, 1408}; 1409 1410static void wm8960_set_pdata_from_of(struct i2c_client *i2c, 1411 struct wm8960_data *pdata) 1412{ 1413 const struct device_node *np = i2c->dev.of_node; 1414 1415 if (of_property_read_bool(np, "wlf,capless")) 1416 pdata->capless = true; 1417 1418 if (of_property_read_bool(np, "wlf,shared-lrclk")) 1419 pdata->shared_lrclk = true; 1420 1421 of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_cfg, 1422 ARRAY_SIZE(pdata->gpio_cfg)); 1423 1424 of_property_read_u32_array(np, "wlf,hp-cfg", pdata->hp_cfg, 1425 ARRAY_SIZE(pdata->hp_cfg)); 1426} 1427 1428static int wm8960_i2c_probe(struct i2c_client *i2c) 1429{ 1430 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); 1431 struct wm8960_priv *wm8960; 1432 unsigned int i; 1433 int ret; 1434 u8 val; 1435 1436 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), 1437 GFP_KERNEL); 1438 if (wm8960 == NULL) 1439 return -ENOMEM; 1440 1441 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk"); 1442 if (IS_ERR(wm8960->mclk)) { 1443 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER) 1444 return -EPROBE_DEFER; 1445 } else { 1446 ret = clk_get_rate(wm8960->mclk); 1447 if (ret >= 0) { 1448 wm8960->freq_in = ret; 1449 } else { 1450 dev_err(&i2c->dev, "Failed to read MCLK rate: %d\n", 1451 ret); 1452 } 1453 } 1454 1455 for (i = 0; i < ARRAY_SIZE(wm8960->supplies); i++) 1456 wm8960->supplies[i].supply = wm8960_supply_names[i]; 1457 1458 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8960->supplies), 1459 wm8960->supplies); 1460 if (ret < 0) { 1461 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); 1462 return ret; 1463 } 1464 1465 ret = regulator_bulk_enable(ARRAY_SIZE(wm8960->supplies), 1466 wm8960->supplies); 1467 if (ret < 0) { 1468 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 1469 return ret; 1470 } 1471 1472 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); 1473 if (IS_ERR(wm8960->regmap)) { 1474 ret = PTR_ERR(wm8960->regmap); 1475 goto bulk_disable; 1476 } 1477 1478 if (pdata) 1479 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data)); 1480 else if (i2c->dev.of_node) 1481 wm8960_set_pdata_from_of(i2c, &wm8960->pdata); 1482 1483 ret = i2c_master_recv(i2c, &val, sizeof(val)); 1484 if (ret >= 0) { 1485 dev_err(&i2c->dev, "Not wm8960, wm8960 reg can not read by i2c\n"); 1486 ret = -EINVAL; 1487 goto bulk_disable; 1488 } 1489 1490 ret = wm8960_reset(wm8960->regmap); 1491 if (ret != 0) { 1492 dev_err(&i2c->dev, "Failed to issue reset\n"); 1493 goto bulk_disable; 1494 } 1495 1496 if (wm8960->pdata.shared_lrclk) { 1497 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 1498 0x4, 0x4); 1499 if (ret != 0) { 1500 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", 1501 ret); 1502 goto bulk_disable; 1503 } 1504 } 1505 1506 /* Latch the update bits */ 1507 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100); 1508 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100); 1509 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100); 1510 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100); 1511 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100); 1512 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100); 1513 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100); 1514 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100); 1515 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100); 1516 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100); 1517 1518 /* ADCLRC pin configured as GPIO. */ 1519 regmap_update_bits(wm8960->regmap, WM8960_IFACE2, 1 << 6, 1520 wm8960->pdata.gpio_cfg[0] << 6); 1521 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 0xF << 4, 1522 wm8960->pdata.gpio_cfg[1] << 4); 1523 1524 /* Enable headphone jack detect */ 1525 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 3 << 2, 1526 wm8960->pdata.hp_cfg[0] << 2); 1527 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 3 << 5, 1528 wm8960->pdata.hp_cfg[1] << 5); 1529 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL1, 3, 1530 wm8960->pdata.hp_cfg[2]); 1531 1532 i2c_set_clientdata(i2c, wm8960); 1533 1534 ret = devm_snd_soc_register_component(&i2c->dev, 1535 &soc_component_dev_wm8960, &wm8960_dai, 1); 1536 if (ret) 1537 goto bulk_disable; 1538 1539 return 0; 1540 1541bulk_disable: 1542 regulator_bulk_disable(ARRAY_SIZE(wm8960->supplies), wm8960->supplies); 1543 return ret; 1544} 1545 1546static void wm8960_i2c_remove(struct i2c_client *client) 1547{ 1548 struct wm8960_priv *wm8960 = i2c_get_clientdata(client); 1549 1550 regulator_bulk_disable(ARRAY_SIZE(wm8960->supplies), wm8960->supplies); 1551} 1552 1553static const struct i2c_device_id wm8960_i2c_id[] = { 1554 { "wm8960" }, 1555 { } 1556}; 1557MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); 1558 1559#if defined(CONFIG_OF) 1560static const struct of_device_id wm8960_of_match[] = { 1561 { .compatible = "wlf,wm8960", }, 1562 { } 1563}; 1564MODULE_DEVICE_TABLE(of, wm8960_of_match); 1565#endif 1566 1567#if defined(CONFIG_ACPI) 1568static const struct acpi_device_id wm8960_acpi_match[] = { 1569 { "1AEC8960", 0 }, /* Wolfson PCI ID + part ID */ 1570 { "10138960", 0 }, /* Cirrus Logic PCI ID + part ID */ 1571 { }, 1572}; 1573MODULE_DEVICE_TABLE(acpi, wm8960_acpi_match); 1574#endif 1575 1576static struct i2c_driver wm8960_i2c_driver = { 1577 .driver = { 1578 .name = "wm8960", 1579 .of_match_table = of_match_ptr(wm8960_of_match), 1580 .acpi_match_table = ACPI_PTR(wm8960_acpi_match), 1581 }, 1582 .probe = wm8960_i2c_probe, 1583 .remove = wm8960_i2c_remove, 1584 .id_table = wm8960_i2c_id, 1585}; 1586 1587module_i2c_driver(wm8960_i2c_driver); 1588 1589MODULE_DESCRIPTION("ASoC WM8960 driver"); 1590MODULE_AUTHOR("Liam Girdwood"); 1591MODULE_LICENSE("GPL");
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