474 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>4 * Universal routines for AK4531 codec5 */6 7#include <linux/delay.h>8#include <linux/init.h>9#include <linux/slab.h>10#include <linux/mutex.h>11#include <linux/module.h>12 13#include <sound/core.h>14#include <sound/ak4531_codec.h>15#include <sound/tlv.h>16 17/*18MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");19MODULE_DESCRIPTION("Universal routines for AK4531 codec");20MODULE_LICENSE("GPL");21*/22 23static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);24 25/*26 *27 */28 29#if 030 31static void snd_ak4531_dump(struct snd_ak4531 *ak4531)32{33 int idx;34 35 for (idx = 0; idx < 0x19; idx++)36 printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",37 idx, ak4531->regs[idx]);38}39 40#endif41 42/*43 *44 */45 46#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \47{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \48 .info = snd_ak4531_info_single, \49 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \50 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }51#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \52{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \53 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \54 .name = xname, .index = xindex, \55 .info = snd_ak4531_info_single, \56 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \57 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \58 .tlv = { .p = (xtlv) } }59 60static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)61{62 int mask = (kcontrol->private_value >> 24) & 0xff;63 64 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;65 uinfo->count = 1;66 uinfo->value.integer.min = 0;67 uinfo->value.integer.max = mask;68 return 0;69}70 71static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)72{73 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);74 int reg = kcontrol->private_value & 0xff;75 int shift = (kcontrol->private_value >> 16) & 0x07;76 int mask = (kcontrol->private_value >> 24) & 0xff;77 int invert = (kcontrol->private_value >> 22) & 1;78 int val;79 80 mutex_lock(&ak4531->reg_mutex);81 val = (ak4531->regs[reg] >> shift) & mask;82 mutex_unlock(&ak4531->reg_mutex);83 if (invert) {84 val = mask - val;85 }86 ucontrol->value.integer.value[0] = val;87 return 0;88}89 90static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)91{92 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);93 int reg = kcontrol->private_value & 0xff;94 int shift = (kcontrol->private_value >> 16) & 0x07;95 int mask = (kcontrol->private_value >> 24) & 0xff;96 int invert = (kcontrol->private_value >> 22) & 1;97 int change;98 int val;99 100 val = ucontrol->value.integer.value[0] & mask;101 if (invert) {102 val = mask - val;103 }104 val <<= shift;105 mutex_lock(&ak4531->reg_mutex);106 val = (ak4531->regs[reg] & ~(mask << shift)) | val;107 change = val != ak4531->regs[reg];108 ak4531->write(ak4531, reg, ak4531->regs[reg] = val);109 mutex_unlock(&ak4531->reg_mutex);110 return change;111}112 113#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \114{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \115 .info = snd_ak4531_info_double, \116 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \117 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }118#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \119{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \120 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \121 .name = xname, .index = xindex, \122 .info = snd_ak4531_info_double, \123 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \124 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \125 .tlv = { .p = (xtlv) } }126 127static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)128{129 int mask = (kcontrol->private_value >> 24) & 0xff;130 131 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;132 uinfo->count = 2;133 uinfo->value.integer.min = 0;134 uinfo->value.integer.max = mask;135 return 0;136}137 138static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)139{140 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);141 int left_reg = kcontrol->private_value & 0xff;142 int right_reg = (kcontrol->private_value >> 8) & 0xff;143 int left_shift = (kcontrol->private_value >> 16) & 0x07;144 int right_shift = (kcontrol->private_value >> 19) & 0x07;145 int mask = (kcontrol->private_value >> 24) & 0xff;146 int invert = (kcontrol->private_value >> 22) & 1;147 int left, right;148 149 mutex_lock(&ak4531->reg_mutex);150 left = (ak4531->regs[left_reg] >> left_shift) & mask;151 right = (ak4531->regs[right_reg] >> right_shift) & mask;152 mutex_unlock(&ak4531->reg_mutex);153 if (invert) {154 left = mask - left;155 right = mask - right;156 }157 ucontrol->value.integer.value[0] = left;158 ucontrol->value.integer.value[1] = right;159 return 0;160}161 162static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)163{164 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);165 int left_reg = kcontrol->private_value & 0xff;166 int right_reg = (kcontrol->private_value >> 8) & 0xff;167 int left_shift = (kcontrol->private_value >> 16) & 0x07;168 int right_shift = (kcontrol->private_value >> 19) & 0x07;169 int mask = (kcontrol->private_value >> 24) & 0xff;170 int invert = (kcontrol->private_value >> 22) & 1;171 int change;172 int left, right;173 174 left = ucontrol->value.integer.value[0] & mask;175 right = ucontrol->value.integer.value[1] & mask;176 if (invert) {177 left = mask - left;178 right = mask - right;179 }180 left <<= left_shift;181 right <<= right_shift;182 mutex_lock(&ak4531->reg_mutex);183 if (left_reg == right_reg) {184 left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;185 change = left != ak4531->regs[left_reg];186 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);187 } else {188 left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;189 right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;190 change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];191 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);192 ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);193 }194 mutex_unlock(&ak4531->reg_mutex);195 return change;196}197 198#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \199{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \200 .info = snd_ak4531_info_input_sw, \201 .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \202 .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }203 204static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)205{206 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;207 uinfo->count = 4;208 uinfo->value.integer.min = 0;209 uinfo->value.integer.max = 1;210 return 0;211}212 213static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)214{215 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);216 int reg1 = kcontrol->private_value & 0xff;217 int reg2 = (kcontrol->private_value >> 8) & 0xff;218 int left_shift = (kcontrol->private_value >> 16) & 0x0f;219 int right_shift = (kcontrol->private_value >> 24) & 0x0f;220 221 mutex_lock(&ak4531->reg_mutex);222 ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;223 ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;224 ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;225 ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;226 mutex_unlock(&ak4531->reg_mutex);227 return 0;228}229 230static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)231{232 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);233 int reg1 = kcontrol->private_value & 0xff;234 int reg2 = (kcontrol->private_value >> 8) & 0xff;235 int left_shift = (kcontrol->private_value >> 16) & 0x0f;236 int right_shift = (kcontrol->private_value >> 24) & 0x0f;237 int change;238 int val1, val2;239 240 mutex_lock(&ak4531->reg_mutex);241 val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));242 val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));243 val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;244 val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;245 val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;246 val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;247 change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];248 ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);249 ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);250 mutex_unlock(&ak4531->reg_mutex);251 return change;252}253 254static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);255static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);256static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);257 258static const struct snd_kcontrol_new snd_ak4531_controls[] = {259 260AK4531_DOUBLE_TLV("Master Playback Switch", 0,261 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,262 db_scale_master),263AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),264 265AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,266 db_scale_mono),267AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),268 269AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),270AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,271 db_scale_input),272AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),273AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),274 275AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),276AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,277 db_scale_input),278AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),279AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),280 281AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),282AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,283 db_scale_input),284AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),285AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),286 287AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),288AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,289 db_scale_input),290AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),291AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),292 293AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),294AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,295 db_scale_input),296AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),297AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),298 299AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),300AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),301AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),302AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),303 304AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),305AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),306AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),307AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),308 309AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),310AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),311AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),312AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),313 314AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),315AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),316AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),317 318AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),319AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)320};321 322static int snd_ak4531_free(struct snd_ak4531 *ak4531)323{324 if (ak4531) {325 if (ak4531->private_free)326 ak4531->private_free(ak4531);327 kfree(ak4531);328 }329 return 0;330}331 332static int snd_ak4531_dev_free(struct snd_device *device)333{334 struct snd_ak4531 *ak4531 = device->device_data;335 return snd_ak4531_free(ak4531);336}337 338static const u8 snd_ak4531_initial_map[0x19 + 1] = {339 0x9f, /* 00: Master Volume Lch */340 0x9f, /* 01: Master Volume Rch */341 0x9f, /* 02: Voice Volume Lch */342 0x9f, /* 03: Voice Volume Rch */343 0x9f, /* 04: FM Volume Lch */344 0x9f, /* 05: FM Volume Rch */345 0x9f, /* 06: CD Audio Volume Lch */346 0x9f, /* 07: CD Audio Volume Rch */347 0x9f, /* 08: Line Volume Lch */348 0x9f, /* 09: Line Volume Rch */349 0x9f, /* 0a: Aux Volume Lch */350 0x9f, /* 0b: Aux Volume Rch */351 0x9f, /* 0c: Mono1 Volume */352 0x9f, /* 0d: Mono2 Volume */353 0x9f, /* 0e: Mic Volume */354 0x87, /* 0f: Mono-out Volume */355 0x00, /* 10: Output Mixer SW1 */356 0x00, /* 11: Output Mixer SW2 */357 0x00, /* 12: Lch Input Mixer SW1 */358 0x00, /* 13: Rch Input Mixer SW1 */359 0x00, /* 14: Lch Input Mixer SW2 */360 0x00, /* 15: Rch Input Mixer SW2 */361 0x00, /* 16: Reset & Power Down */362 0x00, /* 17: Clock Select */363 0x00, /* 18: AD Input Select */364 0x01 /* 19: Mic Amp Setup */365};366 367int snd_ak4531_mixer(struct snd_card *card,368 struct snd_ak4531 *_ak4531,369 struct snd_ak4531 **rak4531)370{371 unsigned int idx;372 int err;373 struct snd_ak4531 *ak4531;374 static const struct snd_device_ops ops = {375 .dev_free = snd_ak4531_dev_free,376 };377 378 if (snd_BUG_ON(!card || !_ak4531))379 return -EINVAL;380 if (rak4531)381 *rak4531 = NULL;382 ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);383 if (ak4531 == NULL)384 return -ENOMEM;385 *ak4531 = *_ak4531;386 mutex_init(&ak4531->reg_mutex);387 err = snd_component_add(card, "AK4531");388 if (err < 0) {389 snd_ak4531_free(ak4531);390 return err;391 }392 strcpy(card->mixername, "Asahi Kasei AK4531");393 ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */394 udelay(100);395 ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */396 for (idx = 0; idx <= 0x19; idx++) {397 if (idx == AK4531_RESET || idx == AK4531_CLOCK)398 continue;399 ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */400 }401 for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {402 err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531));403 if (err < 0) {404 snd_ak4531_free(ak4531);405 return err;406 }407 }408 snd_ak4531_proc_init(card, ak4531);409 err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops);410 if (err < 0) {411 snd_ak4531_free(ak4531);412 return err;413 }414 415#if 0416 snd_ak4531_dump(ak4531);417#endif418 if (rak4531)419 *rak4531 = ak4531;420 return 0;421}422 423/*424 * power management425 */426#ifdef CONFIG_PM427void snd_ak4531_suspend(struct snd_ak4531 *ak4531)428{429 /* mute */430 ak4531->write(ak4531, AK4531_LMASTER, 0x9f);431 ak4531->write(ak4531, AK4531_RMASTER, 0x9f);432 /* powerdown */433 ak4531->write(ak4531, AK4531_RESET, 0x01);434}435 436void snd_ak4531_resume(struct snd_ak4531 *ak4531)437{438 int idx;439 440 /* initialize */441 ak4531->write(ak4531, AK4531_RESET, 0x03);442 udelay(100);443 ak4531->write(ak4531, AK4531_CLOCK, 0x00);444 /* restore mixer registers */445 for (idx = 0; idx <= 0x19; idx++) {446 if (idx == AK4531_RESET || idx == AK4531_CLOCK)447 continue;448 ak4531->write(ak4531, idx, ak4531->regs[idx]);449 }450}451#endif452 453/*454 * /proc interface455 */456 457static void snd_ak4531_proc_read(struct snd_info_entry *entry, 458 struct snd_info_buffer *buffer)459{460 struct snd_ak4531 *ak4531 = entry->private_data;461 462 snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");463 snd_iprintf(buffer, "Recording source : %s\n"464 "MIC gain : %s\n",465 ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",466 ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");467}468 469static void470snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)471{472 snd_card_ro_proc_new(card, "ak4531", ak4531, snd_ak4531_proc_read);473}474