Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * ALSA SoC WM9090 driver
0004  *
0005  * Copyright 2009-12 Wolfson Microelectronics
0006  *
0007  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
0008  */
0009 
0010 #include <linux/module.h>
0011 #include <linux/errno.h>
0012 #include <linux/device.h>
0013 #include <linux/i2c.h>
0014 #include <linux/delay.h>
0015 #include <linux/regmap.h>
0016 #include <linux/slab.h>
0017 #include <sound/initval.h>
0018 #include <sound/soc.h>
0019 #include <sound/tlv.h>
0020 #include <sound/wm9090.h>
0021 
0022 #include "wm9090.h"
0023 
0024 static const struct reg_default wm9090_reg_defaults[] = {
0025     { 1,  0x0006 },     /* R1   - Power Management (1) */
0026     { 2,  0x6000 },     /* R2   - Power Management (2) */
0027     { 3,  0x0000 },     /* R3   - Power Management (3) */
0028     { 6,  0x01C0 },     /* R6   - Clocking 1 */
0029     { 22, 0x0003 },     /* R22  - IN1 Line Control */
0030     { 23, 0x0003 },     /* R23  - IN2 Line Control */
0031     { 24, 0x0083 },     /* R24  - IN1 Line Input A Volume */
0032     { 25, 0x0083 },     /* R25  - IN1  Line Input B Volume */
0033     { 26, 0x0083 },     /* R26  - IN2 Line Input A Volume */
0034     { 27, 0x0083 },     /* R27  - IN2 Line Input B Volume */
0035     { 28, 0x002D },     /* R28  - Left Output Volume */
0036     { 29, 0x002D },     /* R29  - Right Output Volume */
0037     { 34, 0x0100 },     /* R34  - SPKMIXL Attenuation */
0038     { 35, 0x0010 },     /* R36  - SPKOUT Mixers */
0039     { 37, 0x0140 },     /* R37  - ClassD3 */
0040     { 38, 0x0039 },     /* R38  - Speaker Volume Left */
0041     { 45, 0x0000 },     /* R45  - Output Mixer1 */
0042     { 46, 0x0000 },     /* R46  - Output Mixer2 */
0043     { 47, 0x0100 },     /* R47  - Output Mixer3 */
0044     { 48, 0x0100 },     /* R48  - Output Mixer4 */
0045     { 54, 0x0000 },     /* R54  - Speaker Mixer */
0046     { 57, 0x000D },     /* R57  - AntiPOP2 */
0047     { 70, 0x0000 },     /* R70  - Write Sequencer 0 */
0048     { 71, 0x0000 },     /* R71  - Write Sequencer 1 */
0049     { 72, 0x0000 },     /* R72  - Write Sequencer 2 */
0050     { 73, 0x0000 },     /* R73  - Write Sequencer 3 */
0051     { 74, 0x0000 },     /* R74  - Write Sequencer 4 */
0052     { 75, 0x0000 },     /* R75  - Write Sequencer 5 */
0053     { 76, 0x1F25 },     /* R76  - Charge Pump 1 */
0054     { 85, 0x054A },     /* R85  - DC Servo 1 */
0055     { 87, 0x0000 },     /* R87  - DC Servo 3 */
0056     { 96, 0x0100 },     /* R96  - Analogue HP 0 */
0057     { 98, 0x8640 },     /* R98  - AGC Control 0 */
0058     { 99, 0xC000 },     /* R99  - AGC Control 1 */
0059     { 100, 0x0200 },     /* R100 - AGC Control 2 */
0060 };
0061 
0062 /* This struct is used to save the context */
0063 struct wm9090_priv {
0064     struct wm9090_platform_data pdata;
0065     struct regmap *regmap;
0066 };
0067 
0068 static bool wm9090_volatile(struct device *dev, unsigned int reg)
0069 {
0070     switch (reg) {
0071     case WM9090_SOFTWARE_RESET:
0072     case WM9090_DC_SERVO_0:
0073     case WM9090_DC_SERVO_READBACK_0:
0074     case WM9090_DC_SERVO_READBACK_1:
0075     case WM9090_DC_SERVO_READBACK_2:
0076         return true;
0077 
0078     default:
0079         return false;
0080     }
0081 }
0082 
0083 static bool wm9090_readable(struct device *dev, unsigned int reg)
0084 {
0085     switch (reg) {
0086     case WM9090_SOFTWARE_RESET:
0087     case WM9090_POWER_MANAGEMENT_1:
0088     case WM9090_POWER_MANAGEMENT_2:
0089     case WM9090_POWER_MANAGEMENT_3:
0090     case WM9090_CLOCKING_1:
0091     case WM9090_IN1_LINE_CONTROL:
0092     case WM9090_IN2_LINE_CONTROL:
0093     case WM9090_IN1_LINE_INPUT_A_VOLUME:
0094     case WM9090_IN1_LINE_INPUT_B_VOLUME:
0095     case WM9090_IN2_LINE_INPUT_A_VOLUME:
0096     case WM9090_IN2_LINE_INPUT_B_VOLUME:
0097     case WM9090_LEFT_OUTPUT_VOLUME:
0098     case WM9090_RIGHT_OUTPUT_VOLUME:
0099     case WM9090_SPKMIXL_ATTENUATION:
0100     case WM9090_SPKOUT_MIXERS:
0101     case WM9090_CLASSD3:
0102     case WM9090_SPEAKER_VOLUME_LEFT:
0103     case WM9090_OUTPUT_MIXER1:
0104     case WM9090_OUTPUT_MIXER2:
0105     case WM9090_OUTPUT_MIXER3:
0106     case WM9090_OUTPUT_MIXER4:
0107     case WM9090_SPEAKER_MIXER:
0108     case WM9090_ANTIPOP2:
0109     case WM9090_WRITE_SEQUENCER_0:
0110     case WM9090_WRITE_SEQUENCER_1:
0111     case WM9090_WRITE_SEQUENCER_2:
0112     case WM9090_WRITE_SEQUENCER_3:
0113     case WM9090_WRITE_SEQUENCER_4:
0114     case WM9090_WRITE_SEQUENCER_5:
0115     case WM9090_CHARGE_PUMP_1:
0116     case WM9090_DC_SERVO_0:
0117     case WM9090_DC_SERVO_1:
0118     case WM9090_DC_SERVO_3:
0119     case WM9090_DC_SERVO_READBACK_0:
0120     case WM9090_DC_SERVO_READBACK_1:
0121     case WM9090_DC_SERVO_READBACK_2:
0122     case WM9090_ANALOGUE_HP_0:
0123     case WM9090_AGC_CONTROL_0:
0124     case WM9090_AGC_CONTROL_1:
0125     case WM9090_AGC_CONTROL_2:
0126         return true;
0127 
0128     default:
0129         return false;
0130     }
0131 }
0132 
0133 static void wait_for_dc_servo(struct snd_soc_component *component)
0134 {
0135     unsigned int reg;
0136     int count = 0;
0137 
0138     dev_dbg(component->dev, "Waiting for DC servo...\n");
0139     do {
0140         count++;
0141         msleep(1);
0142         reg = snd_soc_component_read(component, WM9090_DC_SERVO_READBACK_0);
0143         dev_dbg(component->dev, "DC servo status: %x\n", reg);
0144     } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
0145          != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
0146 
0147     if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
0148         != WM9090_DCS_CAL_COMPLETE_MASK)
0149         dev_err(component->dev, "Timed out waiting for DC Servo\n");
0150 }
0151 
0152 static const DECLARE_TLV_DB_RANGE(in_tlv,
0153     0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
0154     1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
0155     4, 6, TLV_DB_SCALE_ITEM(600, 600, 0)
0156 );
0157 static const DECLARE_TLV_DB_RANGE(mix_tlv,
0158     0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
0159     3, 3, TLV_DB_SCALE_ITEM(0, 0, 0)
0160 );
0161 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
0162 static const DECLARE_TLV_DB_RANGE(spkboost_tlv,
0163     0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
0164     7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0)
0165 );
0166 
0167 static const struct snd_kcontrol_new wm9090_controls[] = {
0168 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
0169            in_tlv),
0170 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
0171 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
0172 
0173 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
0174            in_tlv),
0175 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
0176 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
0177 
0178 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
0179 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
0180            mix_tlv),
0181 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
0182            mix_tlv),
0183 
0184 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
0185 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
0186            mix_tlv),
0187 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
0188            mix_tlv),
0189 
0190 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
0191 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
0192            mix_tlv),
0193 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
0194            mix_tlv),
0195 
0196 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
0197          WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
0198 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
0199          WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
0200 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
0201          WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
0202 
0203 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
0204            out_tlv),
0205 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
0206 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
0207 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
0208 };
0209 
0210 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
0211 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
0212            in_tlv),
0213 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
0214 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
0215 
0216 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
0217            mix_tlv),
0218 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
0219            mix_tlv),
0220 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
0221            mix_tlv),
0222 };
0223 
0224 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
0225 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
0226            in_tlv),
0227 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
0228 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
0229 
0230 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
0231            mix_tlv),
0232 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
0233            mix_tlv),
0234 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
0235            mix_tlv),
0236 };
0237 
0238 static int hp_ev(struct snd_soc_dapm_widget *w,
0239          struct snd_kcontrol *kcontrol, int event)
0240 {
0241     struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
0242     unsigned int reg = snd_soc_component_read(component, WM9090_ANALOGUE_HP_0);
0243 
0244     switch (event) {
0245     case SND_SOC_DAPM_POST_PMU:
0246         snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
0247                     WM9090_CP_ENA, WM9090_CP_ENA);
0248 
0249         msleep(5);
0250 
0251         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
0252                     WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
0253                     WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
0254 
0255         reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
0256         snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
0257 
0258         /* Start the DC servo.  We don't currently use the
0259          * ability to save the state since we don't have full
0260          * control of the analogue paths and they can change
0261          * DC offsets; see the WM8904 driver for an example of
0262          * doing so.
0263          */
0264         snd_soc_component_write(component, WM9090_DC_SERVO_0,
0265                   WM9090_DCS_ENA_CHAN_0 |
0266                   WM9090_DCS_ENA_CHAN_1 |
0267                   WM9090_DCS_TRIG_STARTUP_1 |
0268                   WM9090_DCS_TRIG_STARTUP_0);
0269         wait_for_dc_servo(component);
0270 
0271         reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
0272             WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
0273         snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
0274         break;
0275 
0276     case SND_SOC_DAPM_PRE_PMD:
0277         reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
0278              WM9090_HPOUT1L_DLY |
0279              WM9090_HPOUT1L_OUTP |
0280              WM9090_HPOUT1R_RMV_SHORT |
0281              WM9090_HPOUT1R_DLY |
0282              WM9090_HPOUT1R_OUTP);
0283 
0284         snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
0285 
0286         snd_soc_component_write(component, WM9090_DC_SERVO_0, 0);
0287 
0288         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
0289                     WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
0290                     0);
0291 
0292         snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
0293                     WM9090_CP_ENA, 0);
0294         break;
0295     }
0296 
0297     return 0;
0298 }
0299 
0300 static const struct snd_kcontrol_new spkmix[] = {
0301 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
0302 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
0303 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
0304 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
0305 };
0306 
0307 static const struct snd_kcontrol_new spkout[] = {
0308 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
0309 };
0310 
0311 static const struct snd_kcontrol_new mixoutl[] = {
0312 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
0313 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
0314 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
0315 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
0316 };
0317 
0318 static const struct snd_kcontrol_new mixoutr[] = {
0319 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
0320 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
0321 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
0322 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
0323 };
0324 
0325 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
0326 SND_SOC_DAPM_INPUT("IN1+"),
0327 SND_SOC_DAPM_INPUT("IN1-"),
0328 SND_SOC_DAPM_INPUT("IN2+"),
0329 SND_SOC_DAPM_INPUT("IN2-"),
0330 
0331 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
0332 
0333 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
0334 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
0335 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
0336 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
0337 
0338 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
0339            spkmix, ARRAY_SIZE(spkmix)),
0340 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
0341            mixoutl, ARRAY_SIZE(mixoutl)),
0342 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
0343            mixoutr, ARRAY_SIZE(mixoutr)),
0344 
0345 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
0346            hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
0347 
0348 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
0349 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
0350            spkout, ARRAY_SIZE(spkout)),
0351 
0352 SND_SOC_DAPM_OUTPUT("HPR"),
0353 SND_SOC_DAPM_OUTPUT("HPL"),
0354 SND_SOC_DAPM_OUTPUT("Speaker"),
0355 };
0356 
0357 static const struct snd_soc_dapm_route audio_map[] = {
0358     { "IN1A PGA", NULL, "IN1+" },
0359     { "IN2A PGA", NULL, "IN2+" },
0360 
0361     { "SPKMIX", "IN1A Switch", "IN1A PGA" },
0362     { "SPKMIX", "IN2A Switch", "IN2A PGA" },
0363 
0364     { "MIXOUTL", "IN1A Switch", "IN1A PGA" },
0365     { "MIXOUTL", "IN2A Switch", "IN2A PGA" },
0366 
0367     { "MIXOUTR", "IN1A Switch", "IN1A PGA" },
0368     { "MIXOUTR", "IN2A Switch", "IN2A PGA" },
0369 
0370     { "HP PGA", NULL, "OSC" },
0371     { "HP PGA", NULL, "MIXOUTL" },
0372     { "HP PGA", NULL, "MIXOUTR" },
0373 
0374     { "HPL", NULL, "HP PGA" },
0375     { "HPR", NULL, "HP PGA" },
0376 
0377     { "SPKPGA", NULL, "OSC" },
0378     { "SPKPGA", NULL, "SPKMIX" },
0379 
0380     { "SPKOUT", "Mixer Switch", "SPKPGA" },
0381 
0382     { "Speaker", NULL, "SPKOUT" },
0383 };
0384 
0385 static const struct snd_soc_dapm_route audio_map_in1_se[] = {
0386     { "IN1B PGA", NULL, "IN1-" },   
0387 
0388     { "SPKMIX", "IN1B Switch", "IN1B PGA" },
0389     { "MIXOUTL", "IN1B Switch", "IN1B PGA" },
0390     { "MIXOUTR", "IN1B Switch", "IN1B PGA" },
0391 };
0392 
0393 static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
0394     { "IN1A PGA", NULL, "IN1-" },   
0395 };
0396 
0397 static const struct snd_soc_dapm_route audio_map_in2_se[] = {
0398     { "IN2B PGA", NULL, "IN2-" },   
0399 
0400     { "SPKMIX", "IN2B Switch", "IN2B PGA" },
0401     { "MIXOUTL", "IN2B Switch", "IN2B PGA" },
0402     { "MIXOUTR", "IN2B Switch", "IN2B PGA" },
0403 };
0404 
0405 static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
0406     { "IN2A PGA", NULL, "IN2-" },   
0407 };
0408 
0409 static int wm9090_add_controls(struct snd_soc_component *component)
0410 {
0411     struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
0412     struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
0413     int i;
0414 
0415     snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
0416                   ARRAY_SIZE(wm9090_dapm_widgets));
0417 
0418     snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
0419 
0420     snd_soc_add_component_controls(component, wm9090_controls,
0421                  ARRAY_SIZE(wm9090_controls));
0422 
0423     if (wm9090->pdata.lin1_diff) {
0424         snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
0425                     ARRAY_SIZE(audio_map_in1_diff));
0426     } else {
0427         snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
0428                     ARRAY_SIZE(audio_map_in1_se));
0429         snd_soc_add_component_controls(component, wm9090_in1_se_controls,
0430                      ARRAY_SIZE(wm9090_in1_se_controls));
0431     }
0432 
0433     if (wm9090->pdata.lin2_diff) {
0434         snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
0435                     ARRAY_SIZE(audio_map_in2_diff));
0436     } else {
0437         snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
0438                     ARRAY_SIZE(audio_map_in2_se));
0439         snd_soc_add_component_controls(component, wm9090_in2_se_controls,
0440                      ARRAY_SIZE(wm9090_in2_se_controls));
0441     }
0442 
0443     if (wm9090->pdata.agc_ena) {
0444         for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
0445             snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i,
0446                       wm9090->pdata.agc[i]);
0447         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
0448                     WM9090_AGC_ENA, WM9090_AGC_ENA);
0449     } else {
0450         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
0451                     WM9090_AGC_ENA, 0);
0452     }
0453 
0454     return 0;
0455 
0456 }
0457 
0458 /*
0459  * The machine driver should call this from their set_bias_level; if there
0460  * isn't one then this can just be set as the set_bias_level function.
0461  */
0462 static int wm9090_set_bias_level(struct snd_soc_component *component,
0463                  enum snd_soc_bias_level level)
0464 {
0465     struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
0466 
0467     switch (level) {
0468     case SND_SOC_BIAS_ON:
0469         break;
0470 
0471     case SND_SOC_BIAS_PREPARE:
0472         snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA,
0473                     WM9090_VMID_ENA);
0474         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
0475                     WM9090_BIAS_ENA |
0476                     WM9090_VMID_RES_MASK,
0477                     WM9090_BIAS_ENA |
0478                     1 << WM9090_VMID_RES_SHIFT);
0479         msleep(1);  /* Probably an overestimate */
0480         break;
0481 
0482     case SND_SOC_BIAS_STANDBY:
0483         if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
0484             /* Restore the register cache */
0485             regcache_sync(wm9090->regmap);
0486         }
0487 
0488         /* We keep VMID off during standby since the combination of
0489          * ground referenced outputs and class D speaker mean that
0490          * latency is not an issue.
0491          */
0492         snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
0493                     WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
0494         snd_soc_component_update_bits(component, WM9090_ANTIPOP2,
0495                     WM9090_VMID_ENA, 0);
0496         break;
0497 
0498     case SND_SOC_BIAS_OFF:
0499         break;
0500     }
0501 
0502     return 0;
0503 }
0504 
0505 static int wm9090_probe(struct snd_soc_component *component)
0506 {
0507     /* Configure some defaults; they will be written out when we
0508      * bring the bias up.
0509      */
0510     snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME,
0511                 WM9090_IN1_VU | WM9090_IN1A_ZC,
0512                 WM9090_IN1_VU | WM9090_IN1A_ZC);
0513     snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME,
0514                 WM9090_IN1_VU | WM9090_IN1B_ZC,
0515                 WM9090_IN1_VU | WM9090_IN1B_ZC);
0516     snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME,
0517                 WM9090_IN2_VU | WM9090_IN2A_ZC,
0518                 WM9090_IN2_VU | WM9090_IN2A_ZC);
0519     snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME,
0520                 WM9090_IN2_VU | WM9090_IN2B_ZC,
0521                 WM9090_IN2_VU | WM9090_IN2B_ZC);
0522     snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT,
0523                 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC,
0524                 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC);
0525     snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME,
0526                 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC,
0527                 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC);
0528     snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME,
0529                 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC,
0530                 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC);
0531 
0532     snd_soc_component_update_bits(component, WM9090_CLOCKING_1,
0533                 WM9090_TOCLK_ENA, WM9090_TOCLK_ENA);
0534 
0535     wm9090_add_controls(component);
0536 
0537     return 0;
0538 }
0539 
0540 static const struct snd_soc_component_driver soc_component_dev_wm9090 = {
0541     .probe          = wm9090_probe,
0542     .set_bias_level     = wm9090_set_bias_level,
0543     .suspend_bias_off   = 1,
0544     .idle_bias_on       = 1,
0545     .use_pmdown_time    = 1,
0546 };
0547 
0548 static const struct regmap_config wm9090_regmap = {
0549     .reg_bits = 8,
0550     .val_bits = 16,
0551 
0552     .max_register = WM9090_MAX_REGISTER,
0553     .volatile_reg = wm9090_volatile,
0554     .readable_reg = wm9090_readable,
0555 
0556     .cache_type = REGCACHE_RBTREE,
0557     .reg_defaults = wm9090_reg_defaults,
0558     .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),
0559 };
0560 
0561 
0562 static int wm9090_i2c_probe(struct i2c_client *i2c)
0563 {
0564     struct wm9090_priv *wm9090;
0565     unsigned int reg;
0566     int ret;
0567 
0568     wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);
0569     if (!wm9090)
0570         return -ENOMEM;
0571 
0572     wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);
0573     if (IS_ERR(wm9090->regmap)) {
0574         ret = PTR_ERR(wm9090->regmap);
0575         dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
0576         return ret;
0577     }
0578 
0579     ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, &reg);
0580     if (ret < 0)
0581         return ret;
0582 
0583     if (reg != 0x9093) {
0584         dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);
0585         return -ENODEV;
0586     }
0587 
0588     ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);
0589     if (ret < 0)
0590         return ret;
0591 
0592     if (i2c->dev.platform_data)
0593         memcpy(&wm9090->pdata, i2c->dev.platform_data,
0594                sizeof(wm9090->pdata));
0595 
0596     i2c_set_clientdata(i2c, wm9090);
0597 
0598     ret =  devm_snd_soc_register_component(&i2c->dev,
0599             &soc_component_dev_wm9090,  NULL, 0);
0600     if (ret != 0) {
0601         dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
0602         return ret;
0603     }
0604 
0605     return 0;
0606 }
0607 
0608 static const struct i2c_device_id wm9090_id[] = {
0609     { "wm9090", 0 },
0610     { "wm9093", 0 },
0611     { }
0612 };
0613 MODULE_DEVICE_TABLE(i2c, wm9090_id);
0614 
0615 static struct i2c_driver wm9090_i2c_driver = {
0616     .driver = {
0617         .name = "wm9090",
0618     },
0619     .probe_new = wm9090_i2c_probe,
0620     .id_table = wm9090_id,
0621 };
0622 
0623 module_i2c_driver(wm9090_i2c_driver);
0624 
0625 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
0626 MODULE_DESCRIPTION("WM9090 ASoC driver");
0627 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!