#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#define WM8961_MAX_REGISTER 0xFC
-static u16 wm8961_reg_defaults[] = {
- 0x009F, /* R0 - Left Input volume */
- 0x009F, /* R1 - Right Input volume */
- 0x0000, /* R2 - LOUT1 volume */
- 0x0000, /* R3 - ROUT1 volume */
- 0x0020, /* R4 - Clocking1 */
- 0x0008, /* R5 - ADC & DAC Control 1 */
- 0x0000, /* R6 - ADC & DAC Control 2 */
- 0x000A, /* R7 - Audio Interface 0 */
- 0x01F4, /* R8 - Clocking2 */
- 0x0000, /* R9 - Audio Interface 1 */
- 0x00FF, /* R10 - Left DAC volume */
- 0x00FF, /* R11 - Right DAC volume */
- 0x0000, /* R12 */
- 0x0000, /* R13 */
- 0x0040, /* R14 - Audio Interface 2 */
- 0x0000, /* R15 - Software Reset */
- 0x0000, /* R16 */
- 0x007B, /* R17 - ALC1 */
- 0x0000, /* R18 - ALC2 */
- 0x0032, /* R19 - ALC3 */
- 0x0000, /* R20 - Noise Gate */
- 0x00C0, /* R21 - Left ADC volume */
- 0x00C0, /* R22 - Right ADC volume */
- 0x0120, /* R23 - Additional control(1) */
- 0x0000, /* R24 - Additional control(2) */
- 0x0000, /* R25 - Pwr Mgmt (1) */
- 0x0000, /* R26 - Pwr Mgmt (2) */
- 0x0000, /* R27 - Additional Control (3) */
- 0x0000, /* R28 - Anti-pop */
- 0x0000, /* R29 */
- 0x005F, /* R30 - Clocking 3 */
- 0x0000, /* R31 */
- 0x0000, /* R32 - ADCL signal path */
- 0x0000, /* R33 - ADCR signal path */
- 0x0000, /* R34 */
- 0x0000, /* R35 */
- 0x0000, /* R36 */
- 0x0000, /* R37 */
- 0x0000, /* R38 */
- 0x0000, /* R39 */
- 0x0000, /* R40 - LOUT2 volume */
- 0x0000, /* R41 - ROUT2 volume */
- 0x0000, /* R42 */
- 0x0000, /* R43 */
- 0x0000, /* R44 */
- 0x0000, /* R45 */
- 0x0000, /* R46 */
- 0x0000, /* R47 - Pwr Mgmt (3) */
- 0x0023, /* R48 - Additional Control (4) */
- 0x0000, /* R49 - Class D Control 1 */
- 0x0000, /* R50 */
- 0x0003, /* R51 - Class D Control 2 */
- 0x0000, /* R52 */
- 0x0000, /* R53 */
- 0x0000, /* R54 */
- 0x0000, /* R55 */
- 0x0106, /* R56 - Clocking 4 */
- 0x0000, /* R57 - DSP Sidetone 0 */
- 0x0000, /* R58 - DSP Sidetone 1 */
- 0x0000, /* R59 */
- 0x0000, /* R60 - DC Servo 0 */
- 0x0000, /* R61 - DC Servo 1 */
- 0x0000, /* R62 */
- 0x015E, /* R63 - DC Servo 3 */
- 0x0010, /* R64 */
- 0x0010, /* R65 - DC Servo 5 */
- 0x0000, /* R66 */
- 0x0001, /* R67 */
- 0x0003, /* R68 - Analogue PGA Bias */
- 0x0000, /* R69 - Analogue HP 0 */
- 0x0060, /* R70 */
- 0x01FB, /* R71 - Analogue HP 2 */
- 0x0000, /* R72 - Charge Pump 1 */
- 0x0065, /* R73 */
- 0x005F, /* R74 */
- 0x0059, /* R75 */
- 0x006B, /* R76 */
- 0x0038, /* R77 */
- 0x000C, /* R78 */
- 0x000A, /* R79 */
- 0x006B, /* R80 */
- 0x0000, /* R81 */
- 0x0000, /* R82 - Charge Pump B */
- 0x0087, /* R83 */
- 0x0000, /* R84 */
- 0x005C, /* R85 */
- 0x0000, /* R86 */
- 0x0000, /* R87 - Write Sequencer 1 */
- 0x0000, /* R88 - Write Sequencer 2 */
- 0x0000, /* R89 - Write Sequencer 3 */
- 0x0000, /* R90 - Write Sequencer 4 */
- 0x0000, /* R91 - Write Sequencer 5 */
- 0x0000, /* R92 - Write Sequencer 6 */
- 0x0000, /* R93 - Write Sequencer 7 */
- 0x0000, /* R94 */
- 0x0000, /* R95 */
- 0x0000, /* R96 */
- 0x0000, /* R97 */
- 0x0000, /* R98 */
- 0x0000, /* R99 */
- 0x0000, /* R100 */
- 0x0000, /* R101 */
- 0x0000, /* R102 */
- 0x0000, /* R103 */
- 0x0000, /* R104 */
- 0x0000, /* R105 */
- 0x0000, /* R106 */
- 0x0000, /* R107 */
- 0x0000, /* R108 */
- 0x0000, /* R109 */
- 0x0000, /* R110 */
- 0x0000, /* R111 */
- 0x0000, /* R112 */
- 0x0000, /* R113 */
- 0x0000, /* R114 */
- 0x0000, /* R115 */
- 0x0000, /* R116 */
- 0x0000, /* R117 */
- 0x0000, /* R118 */
- 0x0000, /* R119 */
- 0x0000, /* R120 */
- 0x0000, /* R121 */
- 0x0000, /* R122 */
- 0x0000, /* R123 */
- 0x0000, /* R124 */
- 0x0000, /* R125 */
- 0x0000, /* R126 */
- 0x0000, /* R127 */
- 0x0000, /* R128 */
- 0x0000, /* R129 */
- 0x0000, /* R130 */
- 0x0000, /* R131 */
- 0x0000, /* R132 */
- 0x0000, /* R133 */
- 0x0000, /* R134 */
- 0x0000, /* R135 */
- 0x0000, /* R136 */
- 0x0000, /* R137 */
- 0x0000, /* R138 */
- 0x0000, /* R139 */
- 0x0000, /* R140 */
- 0x0000, /* R141 */
- 0x0000, /* R142 */
- 0x0000, /* R143 */
- 0x0000, /* R144 */
- 0x0000, /* R145 */
- 0x0000, /* R146 */
- 0x0000, /* R147 */
- 0x0000, /* R148 */
- 0x0000, /* R149 */
- 0x0000, /* R150 */
- 0x0000, /* R151 */
- 0x0000, /* R152 */
- 0x0000, /* R153 */
- 0x0000, /* R154 */
- 0x0000, /* R155 */
- 0x0000, /* R156 */
- 0x0000, /* R157 */
- 0x0000, /* R158 */
- 0x0000, /* R159 */
- 0x0000, /* R160 */
- 0x0000, /* R161 */
- 0x0000, /* R162 */
- 0x0000, /* R163 */
- 0x0000, /* R164 */
- 0x0000, /* R165 */
- 0x0000, /* R166 */
- 0x0000, /* R167 */
- 0x0000, /* R168 */
- 0x0000, /* R169 */
- 0x0000, /* R170 */
- 0x0000, /* R171 */
- 0x0000, /* R172 */
- 0x0000, /* R173 */
- 0x0000, /* R174 */
- 0x0000, /* R175 */
- 0x0000, /* R176 */
- 0x0000, /* R177 */
- 0x0000, /* R178 */
- 0x0000, /* R179 */
- 0x0000, /* R180 */
- 0x0000, /* R181 */
- 0x0000, /* R182 */
- 0x0000, /* R183 */
- 0x0000, /* R184 */
- 0x0000, /* R185 */
- 0x0000, /* R186 */
- 0x0000, /* R187 */
- 0x0000, /* R188 */
- 0x0000, /* R189 */
- 0x0000, /* R190 */
- 0x0000, /* R191 */
- 0x0000, /* R192 */
- 0x0000, /* R193 */
- 0x0000, /* R194 */
- 0x0000, /* R195 */
- 0x0030, /* R196 */
- 0x0006, /* R197 */
- 0x0000, /* R198 */
- 0x0060, /* R199 */
- 0x0000, /* R200 */
- 0x003F, /* R201 */
- 0x0000, /* R202 */
- 0x0000, /* R203 */
- 0x0000, /* R204 */
- 0x0001, /* R205 */
- 0x0000, /* R206 */
- 0x0181, /* R207 */
- 0x0005, /* R208 */
- 0x0008, /* R209 */
- 0x0008, /* R210 */
- 0x0000, /* R211 */
- 0x013B, /* R212 */
- 0x0000, /* R213 */
- 0x0000, /* R214 */
- 0x0000, /* R215 */
- 0x0000, /* R216 */
- 0x0070, /* R217 */
- 0x0000, /* R218 */
- 0x0000, /* R219 */
- 0x0000, /* R220 */
- 0x0000, /* R221 */
- 0x0000, /* R222 */
- 0x0003, /* R223 */
- 0x0000, /* R224 */
- 0x0000, /* R225 */
- 0x0001, /* R226 */
- 0x0008, /* R227 */
- 0x0000, /* R228 */
- 0x0000, /* R229 */
- 0x0000, /* R230 */
- 0x0000, /* R231 */
- 0x0004, /* R232 */
- 0x0000, /* R233 */
- 0x0000, /* R234 */
- 0x0000, /* R235 */
- 0x0000, /* R236 */
- 0x0000, /* R237 */
- 0x0080, /* R238 */
- 0x0000, /* R239 */
- 0x0000, /* R240 */
- 0x0000, /* R241 */
- 0x0000, /* R242 */
- 0x0000, /* R243 */
- 0x0000, /* R244 */
- 0x0052, /* R245 */
- 0x0110, /* R246 */
- 0x0040, /* R247 */
- 0x0000, /* R248 */
- 0x0030, /* R249 */
- 0x0000, /* R250 */
- 0x0000, /* R251 */
- 0x0001, /* R252 - General test 1 */
+static const struct reg_default wm8961_reg_defaults[] = {
+ { 0, 0x009F }, /* R0 - Left Input volume */
+ { 1, 0x009F }, /* R1 - Right Input volume */
+ { 2, 0x0000 }, /* R2 - LOUT1 volume */
+ { 3, 0x0000 }, /* R3 - ROUT1 volume */
+ { 4, 0x0020 }, /* R4 - Clocking1 */
+ { 5, 0x0008 }, /* R5 - ADC & DAC Control 1 */
+ { 6, 0x0000 }, /* R6 - ADC & DAC Control 2 */
+ { 7, 0x000A }, /* R7 - Audio Interface 0 */
+ { 8, 0x01F4 }, /* R8 - Clocking2 */
+ { 9, 0x0000 }, /* R9 - Audio Interface 1 */
+ { 10, 0x00FF }, /* R10 - Left DAC volume */
+ { 11, 0x00FF }, /* R11 - Right DAC volume */
+
+ { 14, 0x0040 }, /* R14 - Audio Interface 2 */
+
+ { 17, 0x007B }, /* R17 - ALC1 */
+ { 18, 0x0000 }, /* R18 - ALC2 */
+ { 19, 0x0032 }, /* R19 - ALC3 */
+ { 20, 0x0000 }, /* R20 - Noise Gate */
+ { 21, 0x00C0 }, /* R21 - Left ADC volume */
+ { 22, 0x00C0 }, /* R22 - Right ADC volume */
+ { 23, 0x0120 }, /* R23 - Additional control(1) */
+ { 24, 0x0000 }, /* R24 - Additional control(2) */
+ { 25, 0x0000 }, /* R25 - Pwr Mgmt (1) */
+ { 26, 0x0000 }, /* R26 - Pwr Mgmt (2) */
+ { 27, 0x0000 }, /* R27 - Additional Control (3) */
+ { 28, 0x0000 }, /* R28 - Anti-pop */
+
+ { 30, 0x005F }, /* R30 - Clocking 3 */
+
+ { 32, 0x0000 }, /* R32 - ADCL signal path */
+ { 33, 0x0000 }, /* R33 - ADCR signal path */
+
+ { 40, 0x0000 }, /* R40 - LOUT2 volume */
+ { 41, 0x0000 }, /* R41 - ROUT2 volume */
+
+ { 47, 0x0000 }, /* R47 - Pwr Mgmt (3) */
+ { 48, 0x0023 }, /* R48 - Additional Control (4) */
+ { 49, 0x0000 }, /* R49 - Class D Control 1 */
+
+ { 51, 0x0003 }, /* R51 - Class D Control 2 */
+
+ { 56, 0x0106 }, /* R56 - Clocking 4 */
+ { 57, 0x0000 }, /* R57 - DSP Sidetone 0 */
+ { 58, 0x0000 }, /* R58 - DSP Sidetone 1 */
+
+ { 60, 0x0000 }, /* R60 - DC Servo 0 */
+ { 61, 0x0000 }, /* R61 - DC Servo 1 */
+
+ { 63, 0x015E }, /* R63 - DC Servo 3 */
+
+ { 65, 0x0010 }, /* R65 - DC Servo 5 */
+
+ { 68, 0x0003 }, /* R68 - Analogue PGA Bias */
+ { 69, 0x0000 }, /* R69 - Analogue HP 0 */
+
+ { 71, 0x01FB }, /* R71 - Analogue HP 2 */
+ { 72, 0x0000 }, /* R72 - Charge Pump 1 */
+
+ { 82, 0x0000 }, /* R82 - Charge Pump B */
+
+ { 87, 0x0000 }, /* R87 - Write Sequencer 1 */
+ { 88, 0x0000 }, /* R88 - Write Sequencer 2 */
+ { 89, 0x0000 }, /* R89 - Write Sequencer 3 */
+ { 90, 0x0000 }, /* R90 - Write Sequencer 4 */
+ { 91, 0x0000 }, /* R91 - Write Sequencer 5 */
+ { 92, 0x0000 }, /* R92 - Write Sequencer 6 */
+ { 93, 0x0000 }, /* R93 - Write Sequencer 7 */
+
+ { 252, 0x0001 }, /* R252 - General test 1 */
};
struct wm8961_priv {
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
int sysclk;
};
-static int wm8961_volatile_register(struct snd_soc_codec *codec, unsigned int reg)
+static bool wm8961_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8961_SOFTWARE_RESET:
case WM8961_WRITE_SEQUENCER_7:
case WM8961_DC_SERVO_1:
- return 1;
+ return true;
default:
- return 0;
+ return false;
}
}
-static int wm8961_reset(struct snd_soc_codec *codec)
+static bool wm8961_readable(struct device *dev, unsigned int reg)
{
- return snd_soc_write(codec, WM8961_SOFTWARE_RESET, 0);
+ switch (reg) {
+ case WM8961_LEFT_INPUT_VOLUME:
+ case WM8961_RIGHT_INPUT_VOLUME:
+ case WM8961_LOUT1_VOLUME:
+ case WM8961_ROUT1_VOLUME:
+ case WM8961_CLOCKING1:
+ case WM8961_ADC_DAC_CONTROL_1:
+ case WM8961_ADC_DAC_CONTROL_2:
+ case WM8961_AUDIO_INTERFACE_0:
+ case WM8961_CLOCKING2:
+ case WM8961_AUDIO_INTERFACE_1:
+ case WM8961_LEFT_DAC_VOLUME:
+ case WM8961_RIGHT_DAC_VOLUME:
+ case WM8961_AUDIO_INTERFACE_2:
+ case WM8961_SOFTWARE_RESET:
+ case WM8961_ALC1:
+ case WM8961_ALC2:
+ case WM8961_ALC3:
+ case WM8961_NOISE_GATE:
+ case WM8961_LEFT_ADC_VOLUME:
+ case WM8961_RIGHT_ADC_VOLUME:
+ case WM8961_ADDITIONAL_CONTROL_1:
+ case WM8961_ADDITIONAL_CONTROL_2:
+ case WM8961_PWR_MGMT_1:
+ case WM8961_PWR_MGMT_2:
+ case WM8961_ADDITIONAL_CONTROL_3:
+ case WM8961_ANTI_POP:
+ case WM8961_CLOCKING_3:
+ case WM8961_ADCL_SIGNAL_PATH:
+ case WM8961_ADCR_SIGNAL_PATH:
+ case WM8961_LOUT2_VOLUME:
+ case WM8961_ROUT2_VOLUME:
+ case WM8961_PWR_MGMT_3:
+ case WM8961_ADDITIONAL_CONTROL_4:
+ case WM8961_CLASS_D_CONTROL_1:
+ case WM8961_CLASS_D_CONTROL_2:
+ case WM8961_CLOCKING_4:
+ case WM8961_DSP_SIDETONE_0:
+ case WM8961_DSP_SIDETONE_1:
+ case WM8961_DC_SERVO_0:
+ case WM8961_DC_SERVO_1:
+ case WM8961_DC_SERVO_3:
+ case WM8961_DC_SERVO_5:
+ case WM8961_ANALOGUE_PGA_BIAS:
+ case WM8961_ANALOGUE_HP_0:
+ case WM8961_ANALOGUE_HP_2:
+ case WM8961_CHARGE_PUMP_1:
+ case WM8961_CHARGE_PUMP_B:
+ case WM8961_WRITE_SEQUENCER_1:
+ case WM8961_WRITE_SEQUENCER_2:
+ case WM8961_WRITE_SEQUENCER_3:
+ case WM8961_WRITE_SEQUENCER_4:
+ case WM8961_WRITE_SEQUENCER_5:
+ case WM8961_WRITE_SEQUENCER_6:
+ case WM8961_WRITE_SEQUENCER_7:
+ case WM8961_GENERAL_TEST_1:
+ return true;
+ default:
+ return false;
+ }
}
/*
int ret = 0;
u16 reg;
- ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
+ ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
if (ret != 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
}
- reg = snd_soc_read(codec, WM8961_SOFTWARE_RESET);
- if (reg != 0x1801) {
- dev_err(codec->dev, "Device is not a WM8961: ID=0x%x\n", reg);
- return -EINVAL;
- }
-
- /* This isn't volatile - readback doesn't correspond to write */
- codec->cache_bypass = 1;
- reg = snd_soc_read(codec, WM8961_RIGHT_INPUT_VOLUME);
- codec->cache_bypass = 0;
- dev_info(codec->dev, "WM8961 family %d revision %c\n",
- (reg & WM8961_DEVICE_ID_MASK) >> WM8961_DEVICE_ID_SHIFT,
- ((reg & WM8961_CHIP_REV_MASK) >> WM8961_CHIP_REV_SHIFT)
- + 'A');
-
- ret = wm8961_reset(codec);
- if (ret < 0) {
- dev_err(codec->dev, "Failed to issue reset\n");
- return ret;
- }
-
/* Enable class W */
reg = snd_soc_read(codec, WM8961_CHARGE_PUMP_B);
reg |= WM8961_CP_DYN_PWR_MASK;
.suspend = wm8961_suspend,
.resume = wm8961_resume,
.set_bias_level = wm8961_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8961_reg_defaults),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8961_reg_defaults,
- .volatile_register = wm8961_volatile_register,
+};
+
+static const struct regmap_config wm8961_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .max_register = WM8961_MAX_REGISTER,
+
+ .reg_defaults = wm8961_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8961_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = wm8961_volatile,
+ .readable_reg = wm8961_readable,
};
static __devinit int wm8961_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm8961_priv *wm8961;
+ unsigned int val;
int ret;
wm8961 = devm_kzalloc(&i2c->dev, sizeof(struct wm8961_priv),
if (wm8961 == NULL)
return -ENOMEM;
+ wm8961->regmap = devm_regmap_init_i2c(i2c, &wm8961_regmap);
+ if (IS_ERR(wm8961->regmap))
+ return PTR_ERR(wm8961->regmap);
+
+ ret = regmap_read(wm8961->regmap, WM8961_SOFTWARE_RESET, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
+ return ret;
+ }
+
+ if (val != 0x1801) {
+ dev_err(&i2c->dev, "Device is not a WM8961: ID=0x%x\n", val);
+ return -EINVAL;
+ }
+
+ /* This isn't volatile - readback doesn't correspond to write */
+ regcache_cache_bypass(wm8961->regmap, true);
+ ret = regmap_read(wm8961->regmap, WM8961_RIGHT_INPUT_VOLUME, &val);
+ regcache_cache_bypass(wm8961->regmap, false);
+
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
+ return ret;
+ }
+
+ dev_info(&i2c->dev, "WM8961 family %d revision %c\n",
+ (val & WM8961_DEVICE_ID_MASK) >> WM8961_DEVICE_ID_SHIFT,
+ ((val & WM8961_CHIP_REV_MASK) >> WM8961_CHIP_REV_SHIFT)
+ + 'A');
+
+ ret = regmap_write(wm8961->regmap, WM8961_SOFTWARE_RESET, 0x1801);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
+ return ret;
+ }
+
i2c_set_clientdata(i2c, wm8961);
ret = snd_soc_register_codec(&i2c->dev,
.id_table = wm8961_i2c_id,
};
-static int __init wm8961_modinit(void)
-{
- int ret = 0;
- ret = i2c_add_driver(&wm8961_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register wm8961 I2C driver: %d\n",
- ret);
- }
- return ret;
-}
-module_init(wm8961_modinit);
-
-static void __exit wm8961_exit(void)
-{
- i2c_del_driver(&wm8961_i2c_driver);
-}
-module_exit(wm8961_exit);
+module_i2c_driver(wm8961_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8961 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
projects / ~andy / linux / blobdiff