Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * TAS571x amplifier audio driver
0004  *
0005  * Copyright (C) 2015 Google, Inc.
0006  * Copyright (c) 2013 Daniel Mack <zonque@gmail.com>
0007  *
0008  * TAS5721 support:
0009  * Copyright (C) 2016 Petr Kulhavy, Barix AG <petr@barix.com>
0010  *
0011  * TAS5707 support:
0012  * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <jbrunet@baylibre.com>
0013  */
0014 
0015 #include <linux/clk.h>
0016 #include <linux/delay.h>
0017 #include <linux/device.h>
0018 #include <linux/gpio/consumer.h>
0019 #include <linux/i2c.h>
0020 #include <linux/init.h>
0021 #include <linux/kernel.h>
0022 #include <linux/module.h>
0023 #include <linux/of_device.h>
0024 #include <linux/regmap.h>
0025 #include <linux/regulator/consumer.h>
0026 #include <linux/stddef.h>
0027 #include <sound/pcm_params.h>
0028 #include <sound/soc.h>
0029 #include <sound/tlv.h>
0030 #include <asm/unaligned.h>
0031 
0032 #include "tas571x.h"
0033 
0034 #define TAS571X_MAX_SUPPLIES        6
0035 
0036 struct tas571x_chip {
0037     const char          *const *supply_names;
0038     int             num_supply_names;
0039     const struct snd_kcontrol_new   *controls;
0040     int             num_controls;
0041     const struct regmap_config  *regmap_config;
0042     int             vol_reg_size;
0043 };
0044 
0045 struct tas571x_private {
0046     const struct tas571x_chip   *chip;
0047     struct regmap           *regmap;
0048     struct regulator_bulk_data  supplies[TAS571X_MAX_SUPPLIES];
0049     struct clk          *mclk;
0050     unsigned int            format;
0051     struct gpio_desc        *reset_gpio;
0052     struct gpio_desc        *pdn_gpio;
0053     struct snd_soc_component_driver component_driver;
0054 };
0055 
0056 static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg)
0057 {
0058     switch (reg) {
0059     case TAS571X_MVOL_REG:
0060     case TAS571X_CH1_VOL_REG:
0061     case TAS571X_CH2_VOL_REG:
0062         return priv->chip->vol_reg_size;
0063     case TAS571X_INPUT_MUX_REG:
0064     case TAS571X_CH4_SRC_SELECT_REG:
0065     case TAS571X_PWM_MUX_REG:
0066     case TAS5717_CH1_RIGHT_CH_MIX_REG:
0067     case TAS5717_CH1_LEFT_CH_MIX_REG:
0068     case TAS5717_CH2_LEFT_CH_MIX_REG:
0069     case TAS5717_CH2_RIGHT_CH_MIX_REG:
0070         return 4;
0071     default:
0072         return 1;
0073     }
0074 }
0075 
0076 static int tas571x_reg_write(void *context, unsigned int reg,
0077                  unsigned int value)
0078 {
0079     struct i2c_client *client = context;
0080     struct tas571x_private *priv = i2c_get_clientdata(client);
0081     unsigned int i, size;
0082     uint8_t buf[5];
0083     int ret;
0084 
0085     size = tas571x_register_size(priv, reg);
0086     buf[0] = reg;
0087 
0088     for (i = size; i >= 1; --i) {
0089         buf[i] = value;
0090         value >>= 8;
0091     }
0092 
0093     ret = i2c_master_send(client, buf, size + 1);
0094     if (ret == size + 1)
0095         return 0;
0096     else if (ret < 0)
0097         return ret;
0098     else
0099         return -EIO;
0100 }
0101 
0102 static int tas571x_reg_read(void *context, unsigned int reg,
0103                 unsigned int *value)
0104 {
0105     struct i2c_client *client = context;
0106     struct tas571x_private *priv = i2c_get_clientdata(client);
0107     uint8_t send_buf, recv_buf[4];
0108     struct i2c_msg msgs[2];
0109     unsigned int size;
0110     unsigned int i;
0111     int ret;
0112 
0113     size = tas571x_register_size(priv, reg);
0114     send_buf = reg;
0115 
0116     msgs[0].addr = client->addr;
0117     msgs[0].len = sizeof(send_buf);
0118     msgs[0].buf = &send_buf;
0119     msgs[0].flags = 0;
0120 
0121     msgs[1].addr = client->addr;
0122     msgs[1].len = size;
0123     msgs[1].buf = recv_buf;
0124     msgs[1].flags = I2C_M_RD;
0125 
0126     ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
0127     if (ret < 0)
0128         return ret;
0129     else if (ret != ARRAY_SIZE(msgs))
0130         return -EIO;
0131 
0132     *value = 0;
0133 
0134     for (i = 0; i < size; i++) {
0135         *value <<= 8;
0136         *value |= recv_buf[i];
0137     }
0138 
0139     return 0;
0140 }
0141 
0142 /*
0143  * register write for 8- and 20-byte registers
0144  */
0145 static int tas571x_reg_write_multiword(struct i2c_client *client,
0146         unsigned int reg, const long values[], size_t len)
0147 {
0148     size_t i;
0149     uint8_t *buf, *p;
0150     int ret;
0151     size_t send_size = 1 + len * sizeof(uint32_t);
0152 
0153     buf = kzalloc(send_size, GFP_KERNEL | GFP_DMA);
0154     if (!buf)
0155         return -ENOMEM;
0156     buf[0] = reg;
0157 
0158     for (i = 0, p = buf + 1; i < len; i++, p += sizeof(uint32_t))
0159         put_unaligned_be32(values[i], p);
0160 
0161     ret = i2c_master_send(client, buf, send_size);
0162 
0163     kfree(buf);
0164 
0165     if (ret == send_size)
0166         return 0;
0167     else if (ret < 0)
0168         return ret;
0169     else
0170         return -EIO;
0171 }
0172 
0173 /*
0174  * register read for 8- and 20-byte registers
0175  */
0176 static int tas571x_reg_read_multiword(struct i2c_client *client,
0177         unsigned int reg, long values[], size_t len)
0178 {
0179     unsigned int i;
0180     uint8_t send_buf;
0181     uint8_t *recv_buf, *p;
0182     struct i2c_msg msgs[2];
0183     unsigned int recv_size = len * sizeof(uint32_t);
0184     int ret;
0185 
0186     recv_buf = kzalloc(recv_size, GFP_KERNEL | GFP_DMA);
0187     if (!recv_buf)
0188         return -ENOMEM;
0189 
0190     send_buf = reg;
0191 
0192     msgs[0].addr = client->addr;
0193     msgs[0].len = sizeof(send_buf);
0194     msgs[0].buf = &send_buf;
0195     msgs[0].flags = 0;
0196 
0197     msgs[1].addr = client->addr;
0198     msgs[1].len = recv_size;
0199     msgs[1].buf = recv_buf;
0200     msgs[1].flags = I2C_M_RD;
0201 
0202     ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
0203     if (ret < 0)
0204         goto err_ret;
0205     else if (ret != ARRAY_SIZE(msgs)) {
0206         ret = -EIO;
0207         goto err_ret;
0208     }
0209 
0210     for (i = 0, p = recv_buf; i < len; i++, p += sizeof(uint32_t))
0211         values[i] = get_unaligned_be32(p);
0212 
0213 err_ret:
0214     kfree(recv_buf);
0215     return ret;
0216 }
0217 
0218 /*
0219  * Integer array controls for setting biquad, mixer, DRC coefficients.
0220  * According to the datasheet each coefficient is effectively 26bits,
0221  * i.e. stored as 32bits, where bits [31:26] are ignored.
0222  * TI's TAS57xx Graphical Development Environment tool however produces
0223  * coefficients with more than 26 bits. For this reason we allow values
0224  * in the full 32-bits reange.
0225  * The coefficients are ordered as given in the TAS571x data sheet:
0226  * b0, b1, b2, a1, a2
0227  */
0228 
0229 static int tas571x_coefficient_info(struct snd_kcontrol *kcontrol,
0230                    struct snd_ctl_elem_info *uinfo)
0231 {
0232     int numcoef = kcontrol->private_value >> 16;
0233 
0234     uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
0235     uinfo->count = numcoef;
0236     uinfo->value.integer.min = 0;
0237     uinfo->value.integer.max = 0xffffffff;
0238     return 0;
0239 }
0240 
0241 static int tas571x_coefficient_get(struct snd_kcontrol *kcontrol,
0242                   struct snd_ctl_elem_value *ucontrol)
0243 {
0244     struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
0245     struct i2c_client *i2c = to_i2c_client(component->dev);
0246     int numcoef = kcontrol->private_value >> 16;
0247     int index = kcontrol->private_value & 0xffff;
0248 
0249     return tas571x_reg_read_multiword(i2c, index,
0250         ucontrol->value.integer.value, numcoef);
0251 }
0252 
0253 static int tas571x_coefficient_put(struct snd_kcontrol *kcontrol,
0254                   struct snd_ctl_elem_value *ucontrol)
0255 {
0256     struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
0257     struct i2c_client *i2c = to_i2c_client(component->dev);
0258     int numcoef = kcontrol->private_value >> 16;
0259     int index = kcontrol->private_value & 0xffff;
0260 
0261     return tas571x_reg_write_multiword(i2c, index,
0262         ucontrol->value.integer.value, numcoef);
0263 }
0264 
0265 static int tas571x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format)
0266 {
0267     struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component);
0268 
0269     priv->format = format;
0270 
0271     return 0;
0272 }
0273 
0274 static int tas571x_hw_params(struct snd_pcm_substream *substream,
0275                  struct snd_pcm_hw_params *params,
0276                  struct snd_soc_dai *dai)
0277 {
0278     struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component);
0279     u32 val;
0280 
0281     switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) {
0282     case SND_SOC_DAIFMT_RIGHT_J:
0283         val = 0x00;
0284         break;
0285     case SND_SOC_DAIFMT_I2S:
0286         val = 0x03;
0287         break;
0288     case SND_SOC_DAIFMT_LEFT_J:
0289         val = 0x06;
0290         break;
0291     default:
0292         return -EINVAL;
0293     }
0294 
0295     if (params_width(params) >= 24)
0296         val += 2;
0297     else if (params_width(params) >= 20)
0298         val += 1;
0299 
0300     return regmap_update_bits(priv->regmap, TAS571X_SDI_REG,
0301                   TAS571X_SDI_FMT_MASK, val);
0302 }
0303 
0304 static int tas571x_mute(struct snd_soc_dai *dai, int mute, int direction)
0305 {
0306     struct snd_soc_component *component = dai->component;
0307     u8 sysctl2;
0308     int ret;
0309 
0310     sysctl2 = mute ? TAS571X_SYS_CTRL_2_SDN_MASK : 0;
0311 
0312     ret = snd_soc_component_update_bits(component,
0313                 TAS571X_SYS_CTRL_2_REG,
0314              TAS571X_SYS_CTRL_2_SDN_MASK,
0315              sysctl2);
0316     usleep_range(1000, 2000);
0317 
0318     return ret;
0319 }
0320 
0321 static int tas571x_set_bias_level(struct snd_soc_component *component,
0322                   enum snd_soc_bias_level level)
0323 {
0324     struct tas571x_private *priv = snd_soc_component_get_drvdata(component);
0325     int ret;
0326 
0327     switch (level) {
0328     case SND_SOC_BIAS_ON:
0329         break;
0330     case SND_SOC_BIAS_PREPARE:
0331         break;
0332     case SND_SOC_BIAS_STANDBY:
0333         if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
0334             if (!IS_ERR(priv->mclk)) {
0335                 ret = clk_prepare_enable(priv->mclk);
0336                 if (ret) {
0337                     dev_err(component->dev,
0338                         "Failed to enable master clock: %d\n",
0339                         ret);
0340                     return ret;
0341                 }
0342             }
0343         }
0344         break;
0345     case SND_SOC_BIAS_OFF:
0346         if (!IS_ERR(priv->mclk))
0347             clk_disable_unprepare(priv->mclk);
0348         break;
0349     }
0350 
0351     return 0;
0352 }
0353 
0354 static const struct snd_soc_dai_ops tas571x_dai_ops = {
0355     .set_fmt    = tas571x_set_dai_fmt,
0356     .hw_params  = tas571x_hw_params,
0357     .mute_stream    = tas571x_mute,
0358     .no_capture_mute = 1,
0359 };
0360 
0361 
0362 #define BIQUAD_COEFS(xname, reg) \
0363 {   .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
0364     .info = tas571x_coefficient_info, \
0365     .get = tas571x_coefficient_get,\
0366     .put = tas571x_coefficient_put, \
0367     .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
0368     .private_value = reg | (5 << 16) }
0369 
0370 static const char *const tas5711_supply_names[] = {
0371     "AVDD",
0372     "DVDD",
0373     "PVDD_A",
0374     "PVDD_B",
0375     "PVDD_C",
0376     "PVDD_D",
0377 };
0378 
0379 static const DECLARE_TLV_DB_SCALE(tas5711_volume_tlv, -10350, 50, 1);
0380 
0381 static const struct snd_kcontrol_new tas5711_controls[] = {
0382     SOC_SINGLE_TLV("Master Volume",
0383                TAS571X_MVOL_REG,
0384                0, 0xff, 1, tas5711_volume_tlv),
0385     SOC_DOUBLE_R_TLV("Speaker Volume",
0386              TAS571X_CH1_VOL_REG,
0387              TAS571X_CH2_VOL_REG,
0388              0, 0xff, 1, tas5711_volume_tlv),
0389     SOC_DOUBLE("Speaker Switch",
0390            TAS571X_SOFT_MUTE_REG,
0391            TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
0392            1, 1),
0393 };
0394 
0395 static const struct regmap_range tas571x_readonly_regs_range[] = {
0396     regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_DEV_ID_REG),
0397 };
0398 
0399 static const struct regmap_range tas571x_volatile_regs_range[] = {
0400     regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_ERR_STATUS_REG),
0401     regmap_reg_range(TAS571X_OSC_TRIM_REG,  TAS571X_OSC_TRIM_REG),
0402 };
0403 
0404 static const struct regmap_access_table tas571x_write_regs = {
0405     .no_ranges =    tas571x_readonly_regs_range,
0406     .n_no_ranges =  ARRAY_SIZE(tas571x_readonly_regs_range),
0407 };
0408 
0409 static const struct regmap_access_table tas571x_volatile_regs = {
0410     .yes_ranges =   tas571x_volatile_regs_range,
0411     .n_yes_ranges = ARRAY_SIZE(tas571x_volatile_regs_range),
0412 
0413 };
0414 
0415 static const struct reg_default tas5711_reg_defaults[] = {
0416     { 0x04, 0x05 },
0417     { 0x05, 0x40 },
0418     { 0x06, 0x00 },
0419     { 0x07, 0xff },
0420     { 0x08, 0x30 },
0421     { 0x09, 0x30 },
0422     { 0x1b, 0x82 },
0423 };
0424 
0425 static const struct regmap_config tas5711_regmap_config = {
0426     .reg_bits           = 8,
0427     .val_bits           = 32,
0428     .max_register           = 0xff,
0429     .reg_read           = tas571x_reg_read,
0430     .reg_write          = tas571x_reg_write,
0431     .reg_defaults           = tas5711_reg_defaults,
0432     .num_reg_defaults       = ARRAY_SIZE(tas5711_reg_defaults),
0433     .cache_type         = REGCACHE_RBTREE,
0434     .wr_table           = &tas571x_write_regs,
0435     .volatile_table         = &tas571x_volatile_regs,
0436 };
0437 
0438 static const struct tas571x_chip tas5711_chip = {
0439     .supply_names           = tas5711_supply_names,
0440     .num_supply_names       = ARRAY_SIZE(tas5711_supply_names),
0441     .controls           = tas5711_controls,
0442     .num_controls           = ARRAY_SIZE(tas5711_controls),
0443     .regmap_config          = &tas5711_regmap_config,
0444     .vol_reg_size           = 1,
0445 };
0446 
0447 static const struct regmap_range tas5707_volatile_regs_range[] = {
0448     regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_ERR_STATUS_REG),
0449     regmap_reg_range(TAS571X_OSC_TRIM_REG,  TAS571X_OSC_TRIM_REG),
0450     regmap_reg_range(TAS5707_CH1_BQ0_REG, TAS5707_CH2_BQ6_REG),
0451 };
0452 
0453 static const struct regmap_access_table tas5707_volatile_regs = {
0454     .yes_ranges =   tas5707_volatile_regs_range,
0455     .n_yes_ranges = ARRAY_SIZE(tas5707_volatile_regs_range),
0456 
0457 };
0458 
0459 static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1);
0460 
0461 static const char * const tas5707_volume_slew_step_txt[] = {
0462     "256", "512", "1024", "2048",
0463 };
0464 
0465 static const unsigned int tas5707_volume_slew_step_values[] = {
0466     3, 0, 1, 2,
0467 };
0468 
0469 static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum,
0470                   TAS571X_VOL_CFG_REG, 0, 0x3,
0471                   tas5707_volume_slew_step_txt,
0472                   tas5707_volume_slew_step_values);
0473 
0474 static const struct snd_kcontrol_new tas5707_controls[] = {
0475     SOC_SINGLE_TLV("Master Volume",
0476                TAS571X_MVOL_REG,
0477                0, 0xff, 1, tas5707_volume_tlv),
0478     SOC_DOUBLE_R_TLV("Speaker Volume",
0479              TAS571X_CH1_VOL_REG,
0480              TAS571X_CH2_VOL_REG,
0481              0, 0xff, 1, tas5707_volume_tlv),
0482     SOC_DOUBLE("Speaker Switch",
0483            TAS571X_SOFT_MUTE_REG,
0484            TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
0485            1, 1),
0486 
0487     SOC_ENUM("Slew Rate Steps", tas5707_volume_slew_step_enum),
0488 
0489     BIQUAD_COEFS("CH1 - Biquad 0", TAS5707_CH1_BQ0_REG),
0490     BIQUAD_COEFS("CH1 - Biquad 1", TAS5707_CH1_BQ1_REG),
0491     BIQUAD_COEFS("CH1 - Biquad 2", TAS5707_CH1_BQ2_REG),
0492     BIQUAD_COEFS("CH1 - Biquad 3", TAS5707_CH1_BQ3_REG),
0493     BIQUAD_COEFS("CH1 - Biquad 4", TAS5707_CH1_BQ4_REG),
0494     BIQUAD_COEFS("CH1 - Biquad 5", TAS5707_CH1_BQ5_REG),
0495     BIQUAD_COEFS("CH1 - Biquad 6", TAS5707_CH1_BQ6_REG),
0496 
0497     BIQUAD_COEFS("CH2 - Biquad 0", TAS5707_CH2_BQ0_REG),
0498     BIQUAD_COEFS("CH2 - Biquad 1", TAS5707_CH2_BQ1_REG),
0499     BIQUAD_COEFS("CH2 - Biquad 2", TAS5707_CH2_BQ2_REG),
0500     BIQUAD_COEFS("CH2 - Biquad 3", TAS5707_CH2_BQ3_REG),
0501     BIQUAD_COEFS("CH2 - Biquad 4", TAS5707_CH2_BQ4_REG),
0502     BIQUAD_COEFS("CH2 - Biquad 5", TAS5707_CH2_BQ5_REG),
0503     BIQUAD_COEFS("CH2 - Biquad 6", TAS5707_CH2_BQ6_REG),
0504 };
0505 
0506 static const struct reg_default tas5707_reg_defaults[] = {
0507     {TAS571X_CLK_CTRL_REG,      0x6c},
0508     {TAS571X_DEV_ID_REG,        0x70},
0509     {TAS571X_ERR_STATUS_REG,    0x00},
0510     {TAS571X_SYS_CTRL_1_REG,    0xa0},
0511     {TAS571X_SDI_REG,       0x05},
0512     {TAS571X_SYS_CTRL_2_REG,    0x40},
0513     {TAS571X_SOFT_MUTE_REG,     0x00},
0514     {TAS571X_MVOL_REG,      0xff},
0515     {TAS571X_CH1_VOL_REG,       0x30},
0516     {TAS571X_CH2_VOL_REG,       0x30},
0517     {TAS571X_VOL_CFG_REG,       0x91},
0518     {TAS571X_MODULATION_LIMIT_REG,  0x02},
0519     {TAS571X_IC_DELAY_CH1_REG,  0xac},
0520     {TAS571X_IC_DELAY_CH2_REG,  0x54},
0521     {TAS571X_IC_DELAY_CH3_REG,  0xac},
0522     {TAS571X_IC_DELAY_CH4_REG,  0x54},
0523     {TAS571X_START_STOP_PERIOD_REG, 0x0f},
0524     {TAS571X_OSC_TRIM_REG,      0x82},
0525     {TAS571X_BKND_ERR_REG,      0x02},
0526     {TAS571X_INPUT_MUX_REG,     0x17772},
0527     {TAS571X_PWM_MUX_REG,       0x1021345},
0528 };
0529 
0530 static const struct regmap_config tas5707_regmap_config = {
0531     .reg_bits           = 8,
0532     .val_bits           = 32,
0533     .max_register           = 0xff,
0534     .reg_read           = tas571x_reg_read,
0535     .reg_write          = tas571x_reg_write,
0536     .reg_defaults           = tas5707_reg_defaults,
0537     .num_reg_defaults       = ARRAY_SIZE(tas5707_reg_defaults),
0538     .cache_type         = REGCACHE_RBTREE,
0539     .wr_table           = &tas571x_write_regs,
0540     .volatile_table         = &tas5707_volatile_regs,
0541 };
0542 
0543 static const struct tas571x_chip tas5707_chip = {
0544     .supply_names           = tas5711_supply_names,
0545     .num_supply_names       = ARRAY_SIZE(tas5711_supply_names),
0546     .controls           = tas5707_controls,
0547     .num_controls           = ARRAY_SIZE(tas5707_controls),
0548     .regmap_config          = &tas5707_regmap_config,
0549     .vol_reg_size           = 1,
0550 };
0551 
0552 static const char *const tas5717_supply_names[] = {
0553     "AVDD",
0554     "DVDD",
0555     "HPVDD",
0556     "PVDD_AB",
0557     "PVDD_CD",
0558 };
0559 
0560 static const DECLARE_TLV_DB_SCALE(tas5717_volume_tlv, -10375, 25, 0);
0561 
0562 static const struct snd_kcontrol_new tas5717_controls[] = {
0563     /* MVOL LSB is ignored - see comments in tas571x_i2c_probe() */
0564     SOC_SINGLE_TLV("Master Volume",
0565                TAS571X_MVOL_REG, 1, 0x1ff, 1,
0566                tas5717_volume_tlv),
0567     SOC_DOUBLE_R_TLV("Speaker Volume",
0568              TAS571X_CH1_VOL_REG, TAS571X_CH2_VOL_REG,
0569              1, 0x1ff, 1, tas5717_volume_tlv),
0570     SOC_DOUBLE("Speaker Switch",
0571            TAS571X_SOFT_MUTE_REG,
0572            TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
0573            1, 1),
0574 
0575     SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
0576                TAS5717_CH1_LEFT_CH_MIX_REG,
0577                TAS5717_CH1_RIGHT_CH_MIX_REG,
0578                16, 0, 0x80, 0),
0579 
0580     SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
0581                TAS5717_CH2_LEFT_CH_MIX_REG,
0582                TAS5717_CH2_RIGHT_CH_MIX_REG,
0583                16, 0, 0x80, 0),
0584 
0585     /*
0586      * The biquads are named according to the register names.
0587      * Please note that TI's TAS57xx Graphical Development Environment
0588      * tool names them different.
0589      */
0590     BIQUAD_COEFS("CH1 - Biquad 0", TAS5717_CH1_BQ0_REG),
0591     BIQUAD_COEFS("CH1 - Biquad 1", TAS5717_CH1_BQ1_REG),
0592     BIQUAD_COEFS("CH1 - Biquad 2", TAS5717_CH1_BQ2_REG),
0593     BIQUAD_COEFS("CH1 - Biquad 3", TAS5717_CH1_BQ3_REG),
0594     BIQUAD_COEFS("CH1 - Biquad 4", TAS5717_CH1_BQ4_REG),
0595     BIQUAD_COEFS("CH1 - Biquad 5", TAS5717_CH1_BQ5_REG),
0596     BIQUAD_COEFS("CH1 - Biquad 6", TAS5717_CH1_BQ6_REG),
0597     BIQUAD_COEFS("CH1 - Biquad 7", TAS5717_CH1_BQ7_REG),
0598     BIQUAD_COEFS("CH1 - Biquad 8", TAS5717_CH1_BQ8_REG),
0599     BIQUAD_COEFS("CH1 - Biquad 9", TAS5717_CH1_BQ9_REG),
0600     BIQUAD_COEFS("CH1 - Biquad 10", TAS5717_CH1_BQ10_REG),
0601     BIQUAD_COEFS("CH1 - Biquad 11", TAS5717_CH1_BQ11_REG),
0602 
0603     BIQUAD_COEFS("CH2 - Biquad 0", TAS5717_CH2_BQ0_REG),
0604     BIQUAD_COEFS("CH2 - Biquad 1", TAS5717_CH2_BQ1_REG),
0605     BIQUAD_COEFS("CH2 - Biquad 2", TAS5717_CH2_BQ2_REG),
0606     BIQUAD_COEFS("CH2 - Biquad 3", TAS5717_CH2_BQ3_REG),
0607     BIQUAD_COEFS("CH2 - Biquad 4", TAS5717_CH2_BQ4_REG),
0608     BIQUAD_COEFS("CH2 - Biquad 5", TAS5717_CH2_BQ5_REG),
0609     BIQUAD_COEFS("CH2 - Biquad 6", TAS5717_CH2_BQ6_REG),
0610     BIQUAD_COEFS("CH2 - Biquad 7", TAS5717_CH2_BQ7_REG),
0611     BIQUAD_COEFS("CH2 - Biquad 8", TAS5717_CH2_BQ8_REG),
0612     BIQUAD_COEFS("CH2 - Biquad 9", TAS5717_CH2_BQ9_REG),
0613     BIQUAD_COEFS("CH2 - Biquad 10", TAS5717_CH2_BQ10_REG),
0614     BIQUAD_COEFS("CH2 - Biquad 11", TAS5717_CH2_BQ11_REG),
0615 
0616     BIQUAD_COEFS("CH3 - Biquad 0", TAS5717_CH3_BQ0_REG),
0617     BIQUAD_COEFS("CH3 - Biquad 1", TAS5717_CH3_BQ1_REG),
0618 
0619     BIQUAD_COEFS("CH4 - Biquad 0", TAS5717_CH4_BQ0_REG),
0620     BIQUAD_COEFS("CH4 - Biquad 1", TAS5717_CH4_BQ1_REG),
0621 };
0622 
0623 static const struct reg_default tas5717_reg_defaults[] = {
0624     { 0x04, 0x05 },
0625     { 0x05, 0x40 },
0626     { 0x06, 0x00 },
0627     { 0x07, 0x03ff },
0628     { 0x08, 0x00c0 },
0629     { 0x09, 0x00c0 },
0630     { 0x1b, 0x82 },
0631     { TAS5717_CH1_RIGHT_CH_MIX_REG, 0x0 },
0632     { TAS5717_CH1_LEFT_CH_MIX_REG, 0x800000},
0633     { TAS5717_CH2_LEFT_CH_MIX_REG, 0x0 },
0634     { TAS5717_CH2_RIGHT_CH_MIX_REG, 0x800000},
0635 };
0636 
0637 static const struct regmap_config tas5717_regmap_config = {
0638     .reg_bits           = 8,
0639     .val_bits           = 32,
0640     .max_register           = 0xff,
0641     .reg_read           = tas571x_reg_read,
0642     .reg_write          = tas571x_reg_write,
0643     .reg_defaults           = tas5717_reg_defaults,
0644     .num_reg_defaults       = ARRAY_SIZE(tas5717_reg_defaults),
0645     .cache_type         = REGCACHE_RBTREE,
0646     .wr_table           = &tas571x_write_regs,
0647     .volatile_table         = &tas571x_volatile_regs,
0648 };
0649 
0650 /* This entry is reused for tas5719 as the software interface is identical. */
0651 static const struct tas571x_chip tas5717_chip = {
0652     .supply_names           = tas5717_supply_names,
0653     .num_supply_names       = ARRAY_SIZE(tas5717_supply_names),
0654     .controls           = tas5717_controls,
0655     .num_controls           = ARRAY_SIZE(tas5717_controls),
0656     .regmap_config          = &tas5717_regmap_config,
0657     .vol_reg_size           = 2,
0658 };
0659 
0660 static const char *const tas5721_supply_names[] = {
0661     "AVDD",
0662     "DVDD",
0663     "DRVDD",
0664     "PVDD",
0665 };
0666 
0667 static const struct snd_kcontrol_new tas5721_controls[] = {
0668     SOC_SINGLE_TLV("Master Volume",
0669                TAS571X_MVOL_REG,
0670                0, 0xff, 1, tas5711_volume_tlv),
0671     SOC_DOUBLE_R_TLV("Speaker Volume",
0672              TAS571X_CH1_VOL_REG,
0673              TAS571X_CH2_VOL_REG,
0674              0, 0xff, 1, tas5711_volume_tlv),
0675     SOC_DOUBLE("Speaker Switch",
0676            TAS571X_SOFT_MUTE_REG,
0677            TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
0678            1, 1),
0679 };
0680 
0681 static const struct reg_default tas5721_reg_defaults[] = {
0682     {TAS571X_CLK_CTRL_REG,      0x6c},
0683     {TAS571X_DEV_ID_REG,        0x00},
0684     {TAS571X_ERR_STATUS_REG,    0x00},
0685     {TAS571X_SYS_CTRL_1_REG,    0xa0},
0686     {TAS571X_SDI_REG,       0x05},
0687     {TAS571X_SYS_CTRL_2_REG,    0x40},
0688     {TAS571X_SOFT_MUTE_REG,     0x00},
0689     {TAS571X_MVOL_REG,      0xff},
0690     {TAS571X_CH1_VOL_REG,       0x30},
0691     {TAS571X_CH2_VOL_REG,       0x30},
0692     {TAS571X_CH3_VOL_REG,       0x30},
0693     {TAS571X_VOL_CFG_REG,       0x91},
0694     {TAS571X_MODULATION_LIMIT_REG,  0x02},
0695     {TAS571X_IC_DELAY_CH1_REG,  0xac},
0696     {TAS571X_IC_DELAY_CH2_REG,  0x54},
0697     {TAS571X_IC_DELAY_CH3_REG,  0xac},
0698     {TAS571X_IC_DELAY_CH4_REG,  0x54},
0699     {TAS571X_PWM_CH_SDN_GROUP_REG,  0x30},
0700     {TAS571X_START_STOP_PERIOD_REG, 0x0f},
0701     {TAS571X_OSC_TRIM_REG,      0x82},
0702     {TAS571X_BKND_ERR_REG,      0x02},
0703     {TAS571X_INPUT_MUX_REG,     0x17772},
0704     {TAS571X_CH4_SRC_SELECT_REG,    0x4303},
0705     {TAS571X_PWM_MUX_REG,       0x1021345},
0706 };
0707 
0708 static const struct regmap_config tas5721_regmap_config = {
0709     .reg_bits           = 8,
0710     .val_bits           = 32,
0711     .max_register           = 0xff,
0712     .reg_read           = tas571x_reg_read,
0713     .reg_write          = tas571x_reg_write,
0714     .reg_defaults           = tas5721_reg_defaults,
0715     .num_reg_defaults       = ARRAY_SIZE(tas5721_reg_defaults),
0716     .cache_type         = REGCACHE_RBTREE,
0717     .wr_table           = &tas571x_write_regs,
0718     .volatile_table         = &tas571x_volatile_regs,
0719 };
0720 
0721 
0722 static const struct tas571x_chip tas5721_chip = {
0723     .supply_names           = tas5721_supply_names,
0724     .num_supply_names       = ARRAY_SIZE(tas5721_supply_names),
0725     .controls           = tas5721_controls,
0726     .num_controls           = ARRAY_SIZE(tas5721_controls),
0727     .regmap_config          = &tas5721_regmap_config,
0728     .vol_reg_size           = 1,
0729 };
0730 
0731 static const struct snd_soc_dapm_widget tas571x_dapm_widgets[] = {
0732     SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0),
0733     SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0),
0734 
0735     SND_SOC_DAPM_OUTPUT("OUT_A"),
0736     SND_SOC_DAPM_OUTPUT("OUT_B"),
0737     SND_SOC_DAPM_OUTPUT("OUT_C"),
0738     SND_SOC_DAPM_OUTPUT("OUT_D"),
0739 };
0740 
0741 static const struct snd_soc_dapm_route tas571x_dapm_routes[] = {
0742     { "DACL",  NULL, "Playback" },
0743     { "DACR",  NULL, "Playback" },
0744 
0745     { "OUT_A", NULL, "DACL" },
0746     { "OUT_B", NULL, "DACL" },
0747     { "OUT_C", NULL, "DACR" },
0748     { "OUT_D", NULL, "DACR" },
0749 };
0750 
0751 static const struct snd_soc_component_driver tas571x_component = {
0752     .set_bias_level     = tas571x_set_bias_level,
0753     .dapm_widgets       = tas571x_dapm_widgets,
0754     .num_dapm_widgets   = ARRAY_SIZE(tas571x_dapm_widgets),
0755     .dapm_routes        = tas571x_dapm_routes,
0756     .num_dapm_routes    = ARRAY_SIZE(tas571x_dapm_routes),
0757     .use_pmdown_time    = 1,
0758     .endianness     = 1,
0759 };
0760 
0761 static struct snd_soc_dai_driver tas571x_dai = {
0762     .name = "tas571x-hifi",
0763     .playback = {
0764         .stream_name = "Playback",
0765         .channels_min = 2,
0766         .channels_max = 2,
0767         .rates = SNDRV_PCM_RATE_8000_48000,
0768         .formats = SNDRV_PCM_FMTBIT_S32_LE |
0769                SNDRV_PCM_FMTBIT_S24_LE |
0770                SNDRV_PCM_FMTBIT_S16_LE,
0771     },
0772     .ops = &tas571x_dai_ops,
0773 };
0774 
0775 static const struct of_device_id tas571x_of_match[] __maybe_unused;
0776 static const struct i2c_device_id tas571x_i2c_id[];
0777 
0778 static int tas571x_i2c_probe(struct i2c_client *client)
0779 {
0780     struct tas571x_private *priv;
0781     struct device *dev = &client->dev;
0782     const struct of_device_id *of_id;
0783     int i, ret;
0784 
0785     priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
0786     if (!priv)
0787         return -ENOMEM;
0788     i2c_set_clientdata(client, priv);
0789 
0790     of_id = of_match_device(tas571x_of_match, dev);
0791     if (of_id)
0792         priv->chip = of_id->data;
0793     else {
0794         const struct i2c_device_id *id =
0795             i2c_match_id(tas571x_i2c_id, client);
0796         priv->chip = (void *) id->driver_data;
0797     }
0798 
0799     priv->mclk = devm_clk_get(dev, "mclk");
0800     if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) {
0801         dev_err(dev, "Failed to request mclk: %ld\n",
0802             PTR_ERR(priv->mclk));
0803         return PTR_ERR(priv->mclk);
0804     }
0805 
0806     if (WARN_ON(priv->chip->num_supply_names > TAS571X_MAX_SUPPLIES))
0807         return -EINVAL;
0808     for (i = 0; i < priv->chip->num_supply_names; i++)
0809         priv->supplies[i].supply = priv->chip->supply_names[i];
0810 
0811     ret = devm_regulator_bulk_get(dev, priv->chip->num_supply_names,
0812                       priv->supplies);
0813     if (ret) {
0814         dev_err(dev, "Failed to get supplies: %d\n", ret);
0815         return ret;
0816     }
0817     ret = regulator_bulk_enable(priv->chip->num_supply_names,
0818                     priv->supplies);
0819     if (ret) {
0820         dev_err(dev, "Failed to enable supplies: %d\n", ret);
0821         return ret;
0822     }
0823 
0824     priv->regmap = devm_regmap_init(dev, NULL, client,
0825                     priv->chip->regmap_config);
0826     if (IS_ERR(priv->regmap)) {
0827         ret = PTR_ERR(priv->regmap);
0828         goto disable_regs;
0829     }
0830 
0831     priv->pdn_gpio = devm_gpiod_get_optional(dev, "pdn", GPIOD_OUT_LOW);
0832     if (IS_ERR(priv->pdn_gpio)) {
0833         dev_err(dev, "error requesting pdn_gpio: %ld\n",
0834             PTR_ERR(priv->pdn_gpio));
0835         ret = PTR_ERR(priv->pdn_gpio);
0836         goto disable_regs;
0837     }
0838 
0839     priv->reset_gpio = devm_gpiod_get_optional(dev, "reset",
0840                            GPIOD_OUT_HIGH);
0841     if (IS_ERR(priv->reset_gpio)) {
0842         dev_err(dev, "error requesting reset_gpio: %ld\n",
0843             PTR_ERR(priv->reset_gpio));
0844         ret = PTR_ERR(priv->reset_gpio);
0845         goto disable_regs;
0846     } else if (priv->reset_gpio) {
0847         /* pulse the active low reset line for ~100us */
0848         usleep_range(100, 200);
0849         gpiod_set_value(priv->reset_gpio, 0);
0850         usleep_range(13500, 20000);
0851     }
0852 
0853     ret = regmap_write(priv->regmap, TAS571X_OSC_TRIM_REG, 0);
0854     if (ret)
0855         goto disable_regs;
0856 
0857     usleep_range(50000, 60000);
0858 
0859     memcpy(&priv->component_driver, &tas571x_component, sizeof(priv->component_driver));
0860     priv->component_driver.controls = priv->chip->controls;
0861     priv->component_driver.num_controls = priv->chip->num_controls;
0862 
0863     if (priv->chip->vol_reg_size == 2) {
0864         /*
0865          * The master volume defaults to 0x3ff (mute), but we ignore
0866          * (zero) the LSB because the hardware step size is 0.125 dB
0867          * and TLV_DB_SCALE_ITEM has a resolution of 0.01 dB.
0868          */
0869         ret = regmap_update_bits(priv->regmap, TAS571X_MVOL_REG, 1, 0);
0870         if (ret)
0871             goto disable_regs;
0872     }
0873 
0874     ret = devm_snd_soc_register_component(&client->dev,
0875                       &priv->component_driver,
0876                       &tas571x_dai, 1);
0877     if (ret)
0878         goto disable_regs;
0879 
0880     return ret;
0881 
0882 disable_regs:
0883     regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies);
0884     return ret;
0885 }
0886 
0887 static int tas571x_i2c_remove(struct i2c_client *client)
0888 {
0889     struct tas571x_private *priv = i2c_get_clientdata(client);
0890 
0891     regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies);
0892 
0893     return 0;
0894 }
0895 
0896 static const struct of_device_id tas571x_of_match[] __maybe_unused = {
0897     { .compatible = "ti,tas5707", .data = &tas5707_chip, },
0898     { .compatible = "ti,tas5711", .data = &tas5711_chip, },
0899     { .compatible = "ti,tas5717", .data = &tas5717_chip, },
0900     { .compatible = "ti,tas5719", .data = &tas5717_chip, },
0901     { .compatible = "ti,tas5721", .data = &tas5721_chip, },
0902     { }
0903 };
0904 MODULE_DEVICE_TABLE(of, tas571x_of_match);
0905 
0906 static const struct i2c_device_id tas571x_i2c_id[] = {
0907     { "tas5707", (kernel_ulong_t) &tas5707_chip },
0908     { "tas5711", (kernel_ulong_t) &tas5711_chip },
0909     { "tas5717", (kernel_ulong_t) &tas5717_chip },
0910     { "tas5719", (kernel_ulong_t) &tas5717_chip },
0911     { "tas5721", (kernel_ulong_t) &tas5721_chip },
0912     { }
0913 };
0914 MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id);
0915 
0916 static struct i2c_driver tas571x_i2c_driver = {
0917     .driver = {
0918         .name = "tas571x",
0919         .of_match_table = of_match_ptr(tas571x_of_match),
0920     },
0921     .probe_new = tas571x_i2c_probe,
0922     .remove = tas571x_i2c_remove,
0923     .id_table = tas571x_i2c_id,
0924 };
0925 module_i2c_driver(tas571x_i2c_driver);
0926 
0927 MODULE_DESCRIPTION("ASoC TAS571x driver");
0928 MODULE_AUTHOR("Kevin Cernekee <cernekee@chromium.org>");
0929 MODULE_LICENSE("GPL");
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!