diff options
Diffstat (limited to 'sound/soc/codecs/wm8904.c')
| -rw-r--r-- | sound/soc/codecs/wm8904.c | 2339 |
1 files changed, 2339 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c new file mode 100644 index 00000000..4e190b59 --- /dev/null +++ b/sound/soc/codecs/wm8904.c @@ -0,0 +1,2339 @@ +/* + * wm8904.c -- WM8904 ALSA SoC Audio driver + * + * Copyright 2009 Wolfson Microelectronics plc + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <sound/wm8904.h> + +#include "wm8904.h" + +enum wm8904_type { + WM8904, + WM8912, +}; + +#define WM8904_NUM_DCS_CHANNELS 4 + +#define WM8904_NUM_SUPPLIES 5 +static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = { + "DCVDD", + "DBVDD", + "AVDD", + "CPVDD", + "MICVDD", +}; + +/* codec private data */ +struct wm8904_priv { + struct regmap *regmap; + + enum wm8904_type devtype; + + struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES]; + + struct wm8904_pdata *pdata; + + int deemph; + + /* Platform provided DRC configuration */ + const char **drc_texts; + int drc_cfg; + struct soc_enum drc_enum; + + /* Platform provided ReTune mobile configuration */ + int num_retune_mobile_texts; + const char **retune_mobile_texts; + int retune_mobile_cfg; + struct soc_enum retune_mobile_enum; + + /* FLL setup */ + int fll_src; + int fll_fref; + int fll_fout; + + /* Clocking configuration */ + unsigned int mclk_rate; + int sysclk_src; + unsigned int sysclk_rate; + + int tdm_width; + int tdm_slots; + int bclk; + int fs; + + /* DC servo configuration - cached offset values */ + int dcs_state[WM8904_NUM_DCS_CHANNELS]; +}; + +static const struct reg_default wm8904_reg_defaults[] = { + { 4, 0x0018 }, /* R4 - Bias Control 0 */ + { 5, 0x0000 }, /* R5 - VMID Control 0 */ + { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */ + { 7, 0x0000 }, /* R7 - Mic Bias Control 1 */ + { 8, 0x0001 }, /* R8 - Analogue DAC 0 */ + { 9, 0x9696 }, /* R9 - mic Filter Control */ + { 10, 0x0001 }, /* R10 - Analogue ADC 0 */ + { 12, 0x0000 }, /* R12 - Power Management 0 */ + { 14, 0x0000 }, /* R14 - Power Management 2 */ + { 15, 0x0000 }, /* R15 - Power Management 3 */ + { 18, 0x0000 }, /* R18 - Power Management 6 */ + { 19, 0x945E }, /* R20 - Clock Rates 0 */ + { 21, 0x0C05 }, /* R21 - Clock Rates 1 */ + { 22, 0x0006 }, /* R22 - Clock Rates 2 */ + { 24, 0x0050 }, /* R24 - Audio Interface 0 */ + { 25, 0x000A }, /* R25 - Audio Interface 1 */ + { 26, 0x00E4 }, /* R26 - Audio Interface 2 */ + { 27, 0x0040 }, /* R27 - Audio Interface 3 */ + { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */ + { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */ + { 32, 0x0000 }, /* R32 - DAC Digital 0 */ + { 33, 0x0008 }, /* R33 - DAC Digital 1 */ + { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */ + { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */ + { 38, 0x0010 }, /* R38 - ADC Digital 0 */ + { 39, 0x0000 }, /* R39 - Digital Microphone 0 */ + { 40, 0x01AF }, /* R40 - DRC 0 */ + { 41, 0x3248 }, /* R41 - DRC 1 */ + { 42, 0x0000 }, /* R42 - DRC 2 */ + { 43, 0x0000 }, /* R43 - DRC 3 */ + { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */ + { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */ + { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */ + { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */ + { 57, 0x002D }, /* R57 - Analogue OUT1 Left */ + { 58, 0x002D }, /* R58 - Analogue OUT1 Right */ + { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */ + { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */ + { 61, 0x0000 }, /* R61 - Analogue OUT12 ZC */ + { 67, 0x0000 }, /* R67 - DC Servo 0 */ + { 69, 0xAAAA }, /* R69 - DC Servo 2 */ + { 71, 0xAAAA }, /* R71 - DC Servo 4 */ + { 72, 0xAAAA }, /* R72 - DC Servo 5 */ + { 90, 0x0000 }, /* R90 - Analogue HP 0 */ + { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */ + { 98, 0x0000 }, /* R98 - Charge Pump 0 */ + { 104, 0x0004 }, /* R104 - Class W 0 */ + { 108, 0x0000 }, /* R108 - Write Sequencer 0 */ + { 109, 0x0000 }, /* R109 - Write Sequencer 1 */ + { 110, 0x0000 }, /* R110 - Write Sequencer 2 */ + { 111, 0x0000 }, /* R111 - Write Sequencer 3 */ + { 112, 0x0000 }, /* R112 - Write Sequencer 4 */ + { 116, 0x0000 }, /* R116 - FLL Control 1 */ + { 117, 0x0007 }, /* R117 - FLL Control 2 */ + { 118, 0x0000 }, /* R118 - FLL Control 3 */ + { 119, 0x2EE0 }, /* R119 - FLL Control 4 */ + { 120, 0x0004 }, /* R120 - FLL Control 5 */ + { 121, 0x0014 }, /* R121 - GPIO Control 1 */ + { 122, 0x0010 }, /* R122 - GPIO Control 2 */ + { 123, 0x0010 }, /* R123 - GPIO Control 3 */ + { 124, 0x0000 }, /* R124 - GPIO Control 4 */ + { 126, 0x0000 }, /* R126 - Digital Pulls */ + { 128, 0xFFFF }, /* R128 - Interrupt Status Mask */ + { 129, 0x0000 }, /* R129 - Interrupt Polarity */ + { 130, 0x0000 }, /* R130 - Interrupt Debounce */ + { 134, 0x0000 }, /* R134 - EQ1 */ + { 135, 0x000C }, /* R135 - EQ2 */ + { 136, 0x000C }, /* R136 - EQ3 */ + { 137, 0x000C }, /* R137 - EQ4 */ + { 138, 0x000C }, /* R138 - EQ5 */ + { 139, 0x000C }, /* R139 - EQ6 */ + { 140, 0x0FCA }, /* R140 - EQ7 */ + { 141, 0x0400 }, /* R141 - EQ8 */ + { 142, 0x00D8 }, /* R142 - EQ9 */ + { 143, 0x1EB5 }, /* R143 - EQ10 */ + { 144, 0xF145 }, /* R144 - EQ11 */ + { 145, 0x0B75 }, /* R145 - EQ12 */ + { 146, 0x01C5 }, /* R146 - EQ13 */ + { 147, 0x1C58 }, /* R147 - EQ14 */ + { 148, 0xF373 }, /* R148 - EQ15 */ + { 149, 0x0A54 }, /* R149 - EQ16 */ + { 150, 0x0558 }, /* R150 - EQ17 */ + { 151, 0x168E }, /* R151 - EQ18 */ + { 152, 0xF829 }, /* R152 - EQ19 */ + { 153, 0x07AD }, /* R153 - EQ20 */ + { 154, 0x1103 }, /* R154 - EQ21 */ + { 155, 0x0564 }, /* R155 - EQ22 */ + { 156, 0x0559 }, /* R156 - EQ23 */ + { 157, 0x4000 }, /* R157 - EQ24 */ + { 161, 0x0000 }, /* R161 - Control Interface Test 1 */ + { 204, 0x0000 }, /* R204 - Analogue Output Bias 0 */ + { 247, 0x0000 }, /* R247 - FLL NCO Test 0 */ + { 248, 0x0019 }, /* R248 - FLL NCO Test 1 */ +}; + +static bool wm8904_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8904_SW_RESET_AND_ID: + case WM8904_REVISION: + case WM8904_DC_SERVO_1: + case WM8904_DC_SERVO_6: + case WM8904_DC_SERVO_7: + case WM8904_DC_SERVO_8: + case WM8904_DC_SERVO_9: + case WM8904_DC_SERVO_READBACK_0: + case WM8904_INTERRUPT_STATUS: + return true; + default: + return false; + } +} + +static bool wm8904_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8904_SW_RESET_AND_ID: + case WM8904_REVISION: + case WM8904_BIAS_CONTROL_0: + case WM8904_VMID_CONTROL_0: + case WM8904_MIC_BIAS_CONTROL_0: + case WM8904_MIC_BIAS_CONTROL_1: + case WM8904_ANALOGUE_DAC_0: + case WM8904_MIC_FILTER_CONTROL: + case WM8904_ANALOGUE_ADC_0: + case WM8904_POWER_MANAGEMENT_0: + case WM8904_POWER_MANAGEMENT_2: + case WM8904_POWER_MANAGEMENT_3: + case WM8904_POWER_MANAGEMENT_6: + case WM8904_CLOCK_RATES_0: + case WM8904_CLOCK_RATES_1: + case WM8904_CLOCK_RATES_2: + case WM8904_AUDIO_INTERFACE_0: + case WM8904_AUDIO_INTERFACE_1: + case WM8904_AUDIO_INTERFACE_2: + case WM8904_AUDIO_INTERFACE_3: + case WM8904_DAC_DIGITAL_VOLUME_LEFT: + case WM8904_DAC_DIGITAL_VOLUME_RIGHT: + case WM8904_DAC_DIGITAL_0: + case WM8904_DAC_DIGITAL_1: + case WM8904_ADC_DIGITAL_VOLUME_LEFT: + case WM8904_ADC_DIGITAL_VOLUME_RIGHT: + case WM8904_ADC_DIGITAL_0: + case WM8904_DIGITAL_MICROPHONE_0: + case WM8904_DRC_0: + case WM8904_DRC_1: + case WM8904_DRC_2: + case WM8904_DRC_3: + case WM8904_ANALOGUE_LEFT_INPUT_0: + case WM8904_ANALOGUE_RIGHT_INPUT_0: + case WM8904_ANALOGUE_LEFT_INPUT_1: + case WM8904_ANALOGUE_RIGHT_INPUT_1: + case WM8904_ANALOGUE_OUT1_LEFT: + case WM8904_ANALOGUE_OUT1_RIGHT: + case WM8904_ANALOGUE_OUT2_LEFT: + case WM8904_ANALOGUE_OUT2_RIGHT: + case WM8904_ANALOGUE_OUT12_ZC: + case WM8904_DC_SERVO_0: + case WM8904_DC_SERVO_1: + case WM8904_DC_SERVO_2: + case WM8904_DC_SERVO_4: + case WM8904_DC_SERVO_5: + case WM8904_DC_SERVO_6: + case WM8904_DC_SERVO_7: + case WM8904_DC_SERVO_8: + case WM8904_DC_SERVO_9: + case WM8904_DC_SERVO_READBACK_0: + case WM8904_ANALOGUE_HP_0: + case WM8904_ANALOGUE_LINEOUT_0: + case WM8904_CHARGE_PUMP_0: + case WM8904_CLASS_W_0: + case WM8904_WRITE_SEQUENCER_0: + case WM8904_WRITE_SEQUENCER_1: + case WM8904_WRITE_SEQUENCER_2: + case WM8904_WRITE_SEQUENCER_3: + case WM8904_WRITE_SEQUENCER_4: + case WM8904_FLL_CONTROL_1: + case WM8904_FLL_CONTROL_2: + case WM8904_FLL_CONTROL_3: + case WM8904_FLL_CONTROL_4: + case WM8904_FLL_CONTROL_5: + case WM8904_GPIO_CONTROL_1: + case WM8904_GPIO_CONTROL_2: + case WM8904_GPIO_CONTROL_3: + case WM8904_GPIO_CONTROL_4: + case WM8904_DIGITAL_PULLS: + case WM8904_INTERRUPT_STATUS: + case WM8904_INTERRUPT_STATUS_MASK: + case WM8904_INTERRUPT_POLARITY: + case WM8904_INTERRUPT_DEBOUNCE: + case WM8904_EQ1: + case WM8904_EQ2: + case WM8904_EQ3: + case WM8904_EQ4: + case WM8904_EQ5: + case WM8904_EQ6: + case WM8904_EQ7: + case WM8904_EQ8: + case WM8904_EQ9: + case WM8904_EQ10: + case WM8904_EQ11: + case WM8904_EQ12: + case WM8904_EQ13: + case WM8904_EQ14: + case WM8904_EQ15: + case WM8904_EQ16: + case WM8904_EQ17: + case WM8904_EQ18: + case WM8904_EQ19: + case WM8904_EQ20: + case WM8904_EQ21: + case WM8904_EQ22: + case WM8904_EQ23: + case WM8904_EQ24: + case WM8904_CONTROL_INTERFACE_TEST_1: + case WM8904_ADC_TEST_0: + case WM8904_ANALOGUE_OUTPUT_BIAS_0: + case WM8904_FLL_NCO_TEST_0: + case WM8904_FLL_NCO_TEST_1: + return true; + default: + return true; + } +} + +static int wm8904_reset(struct snd_soc_codec *codec) +{ + return snd_soc_write(codec, WM8904_SW_RESET_AND_ID, 0); +} + +static int wm8904_configure_clocking(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + unsigned int clock0, clock2, rate; + + /* Gate the clock while we're updating to avoid misclocking */ + clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2); + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, + WM8904_SYSCLK_SRC, 0); + + /* This should be done on init() for bypass paths */ + switch (wm8904->sysclk_src) { + case WM8904_CLK_MCLK: + dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8904->mclk_rate); + + clock2 &= ~WM8904_SYSCLK_SRC; + rate = wm8904->mclk_rate; + + /* Ensure the FLL is stopped */ + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); + break; + + case WM8904_CLK_FLL: + dev_dbg(codec->dev, "Using %dHz FLL clock\n", + wm8904->fll_fout); + + clock2 |= WM8904_SYSCLK_SRC; + rate = wm8904->fll_fout; + break; + + default: + dev_err(codec->dev, "System clock not configured\n"); + return -EINVAL; + } + + /* SYSCLK shouldn't be over 13.5MHz */ + if (rate > 13500000) { + clock0 = WM8904_MCLK_DIV; + wm8904->sysclk_rate = rate / 2; + } else { + clock0 = 0; + wm8904->sysclk_rate = rate; + } + + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV, + clock0); + + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, + WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2); + + dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8904->sysclk_rate); + + return 0; +} + +static void wm8904_set_drc(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int save, i; + + /* Save any enables; the configuration should clear them. */ + save = snd_soc_read(codec, WM8904_DRC_0); + + for (i = 0; i < WM8904_DRC_REGS; i++) + snd_soc_update_bits(codec, WM8904_DRC_0 + i, 0xffff, + pdata->drc_cfgs[wm8904->drc_cfg].regs[i]); + + /* Reenable the DRC */ + snd_soc_update_bits(codec, WM8904_DRC_0, + WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save); +} + +static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int value = ucontrol->value.integer.value[0]; + + if (value >= pdata->num_drc_cfgs) + return -EINVAL; + + wm8904->drc_cfg = value; + + wm8904_set_drc(codec); + + return 0; +} + +static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.enumerated.item[0] = wm8904->drc_cfg; + + return 0; +} + +static void wm8904_set_retune_mobile(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int best, best_val, save, i, cfg; + + if (!pdata || !wm8904->num_retune_mobile_texts) + return; + + /* Find the version of the currently selected configuration + * with the nearest sample rate. */ + cfg = wm8904->retune_mobile_cfg; + best = 0; + best_val = INT_MAX; + for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { + if (strcmp(pdata->retune_mobile_cfgs[i].name, + wm8904->retune_mobile_texts[cfg]) == 0 && + abs(pdata->retune_mobile_cfgs[i].rate + - wm8904->fs) < best_val) { + best = i; + best_val = abs(pdata->retune_mobile_cfgs[i].rate + - wm8904->fs); + } + } + + dev_dbg(codec->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n", + pdata->retune_mobile_cfgs[best].name, + pdata->retune_mobile_cfgs[best].rate, + wm8904->fs); + + /* The EQ will be disabled while reconfiguring it, remember the + * current configuration. + */ + save = snd_soc_read(codec, WM8904_EQ1); + + for (i = 0; i < WM8904_EQ_REGS; i++) + snd_soc_update_bits(codec, WM8904_EQ1 + i, 0xffff, + pdata->retune_mobile_cfgs[best].regs[i]); + + snd_soc_update_bits(codec, WM8904_EQ1, WM8904_EQ_ENA, save); +} + +static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int value = ucontrol->value.integer.value[0]; + + if (value >= pdata->num_retune_mobile_cfgs) + return -EINVAL; + + wm8904->retune_mobile_cfg = value; + + wm8904_set_retune_mobile(codec); + + return 0; +} + +static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.enumerated.item[0] = wm8904->retune_mobile_cfg; + + return 0; +} + +static int deemph_settings[] = { 0, 32000, 44100, 48000 }; + +static int wm8904_set_deemph(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int val, i, best; + + /* If we're using deemphasis select the nearest available sample + * rate. + */ + if (wm8904->deemph) { + best = 1; + for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { + if (abs(deemph_settings[i] - wm8904->fs) < + abs(deemph_settings[best] - wm8904->fs)) + best = i; + } + + val = best << WM8904_DEEMPH_SHIFT; + } else { + val = 0; + } + + dev_dbg(codec->dev, "Set deemphasis %d\n", val); + + return snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, + WM8904_DEEMPH_MASK, val); +} + +static int wm8904_get_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.enumerated.item[0] = wm8904->deemph; + return 0; +} + +static int wm8904_put_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int deemph = ucontrol->value.enumerated.item[0]; + + if (deemph > 1) + return -EINVAL; + + wm8904->deemph = deemph; + + return wm8904_set_deemph(codec); +} + +static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0); +static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); +static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); +static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0); +static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); + +static const char *input_mode_text[] = { + "Single-Ended", "Differential Line", "Differential Mic" +}; + +static const struct soc_enum lin_mode = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text); + +static const struct soc_enum rin_mode = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text); + +static const char *hpf_mode_text[] = { + "Hi-fi", "Voice 1", "Voice 2", "Voice 3" +}; + +static const struct soc_enum hpf_mode = + SOC_ENUM_SINGLE(WM8904_ADC_DIGITAL_0, 5, 4, hpf_mode_text); + +static int wm8904_adc_osr_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + unsigned int val; + int ret; + + ret = snd_soc_put_volsw(kcontrol, ucontrol); + if (ret < 0) + return ret; + + if (ucontrol->value.integer.value[0]) + val = 0; + else + val = WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5; + + snd_soc_update_bits(codec, WM8904_ADC_TEST_0, + WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5, + val); + + return ret; +} + +static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = { +SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT, + WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv), + +SOC_ENUM("Left Caputure Mode", lin_mode), +SOC_ENUM("Right Capture Mode", rin_mode), + +/* No TLV since it depends on mode */ +SOC_DOUBLE_R("Capture Volume", WM8904_ANALOGUE_LEFT_INPUT_0, + WM8904_ANALOGUE_RIGHT_INPUT_0, 0, 31, 0), +SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0, + WM8904_ANALOGUE_RIGHT_INPUT_0, 7, 1, 1), + +SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0), +SOC_ENUM("High Pass Filter Mode", hpf_mode), + +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "ADC 128x OSR Switch", + .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, + .put = wm8904_adc_osr_put, + .private_value = SOC_SINGLE_VALUE(WM8904_ANALOGUE_ADC_0, 0, 1, 0), +}, +}; + +static const char *drc_path_text[] = { + "ADC", "DAC" +}; + +static const struct soc_enum drc_path = + SOC_ENUM_SINGLE(WM8904_DRC_0, 14, 2, drc_path_text); + +static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = { +SOC_SINGLE_TLV("Digital Playback Boost Volume", + WM8904_AUDIO_INTERFACE_0, 9, 3, 0, dac_boost_tlv), +SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8904_DAC_DIGITAL_VOLUME_LEFT, + WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv), + +SOC_DOUBLE_R_TLV("Headphone Volume", WM8904_ANALOGUE_OUT1_LEFT, + WM8904_ANALOGUE_OUT1_RIGHT, 0, 63, 0, out_tlv), +SOC_DOUBLE_R("Headphone Switch", WM8904_ANALOGUE_OUT1_LEFT, + WM8904_ANALOGUE_OUT1_RIGHT, 8, 1, 1), +SOC_DOUBLE_R("Headphone ZC Switch", WM8904_ANALOGUE_OUT1_LEFT, + WM8904_ANALOGUE_OUT1_RIGHT, 6, 1, 0), + +SOC_DOUBLE_R_TLV("Line Output Volume", WM8904_ANALOGUE_OUT2_LEFT, + WM8904_ANALOGUE_OUT2_RIGHT, 0, 63, 0, out_tlv), +SOC_DOUBLE_R("Line Output Switch", WM8904_ANALOGUE_OUT2_LEFT, + WM8904_ANALOGUE_OUT2_RIGHT, 8, 1, 1), +SOC_DOUBLE_R("Line Output ZC Switch", WM8904_ANALOGUE_OUT2_LEFT, + WM8904_ANALOGUE_OUT2_RIGHT, 6, 1, 0), + +SOC_SINGLE("EQ Switch", WM8904_EQ1, 0, 1, 0), +SOC_SINGLE("DRC Switch", WM8904_DRC_0, 15, 1, 0), +SOC_ENUM("DRC Path", drc_path), +SOC_SINGLE("DAC OSRx2 Switch", WM8904_DAC_DIGITAL_1, 6, 1, 0), +SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, + wm8904_get_deemph, wm8904_put_deemph), +}; + +static const struct snd_kcontrol_new wm8904_snd_controls[] = { +SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8904_DAC_DIGITAL_0, 4, 8, 15, 0, + sidetone_tlv), +}; + +static const struct snd_kcontrol_new wm8904_eq_controls[] = { +SOC_SINGLE_TLV("EQ1 Volume", WM8904_EQ2, 0, 24, 0, eq_tlv), +SOC_SINGLE_TLV("EQ2 Volume", WM8904_EQ3, 0, 24, 0, eq_tlv), +SOC_SINGLE_TLV("EQ3 Volume", WM8904_EQ4, 0, 24, 0, eq_tlv), +SOC_SINGLE_TLV("EQ4 Volume", WM8904_EQ5, 0, 24, 0, eq_tlv), +SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv), +}; + +static int cp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + BUG_ON(event != SND_SOC_DAPM_POST_PMU); + + /* Maximum startup time */ + udelay(500); + + return 0; +} + +static int sysclk_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* If we're using the FLL then we only start it when + * required; we assume that the configuration has been + * done previously and all we need to do is kick it + * off. + */ + switch (wm8904->sysclk_src) { + case WM8904_CLK_FLL: + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA, + WM8904_FLL_OSC_ENA); + + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_ENA, + WM8904_FLL_ENA); + break; + + default: + break; + } + break; + + case SND_SOC_DAPM_POST_PMD: + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); + break; + } + + return 0; +} + +static int out_pga_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int reg, val; + int dcs_mask; + int dcs_l, dcs_r; + int dcs_l_reg, dcs_r_reg; + int timeout; + int pwr_reg; + + /* This code is shared between HP and LINEOUT; we do all our + * power management in stereo pairs to avoid latency issues so + * we reuse shift to identify which rather than strcmp() the + * name. */ + reg = w->shift; + + switch (reg) { + case WM8904_ANALOGUE_HP_0: + pwr_reg = WM8904_POWER_MANAGEMENT_2; + dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1; + dcs_r_reg = WM8904_DC_SERVO_8; + dcs_l_reg = WM8904_DC_SERVO_9; + dcs_l = 0; + dcs_r = 1; + break; + case WM8904_ANALOGUE_LINEOUT_0: + pwr_reg = WM8904_POWER_MANAGEMENT_3; + dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3; + dcs_r_reg = WM8904_DC_SERVO_6; + dcs_l_reg = WM8904_DC_SERVO_7; + dcs_l = 2; + dcs_r = 3; + break; + default: + BUG(); + return -EINVAL; + } + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* Power on the PGAs */ + snd_soc_update_bits(codec, pwr_reg, + WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA, + WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA); + + /* Power on the amplifier */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_ENA | WM8904_HPR_ENA, + WM8904_HPL_ENA | WM8904_HPR_ENA); + + + /* Enable the first stage */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY, + WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY); + + /* Power up the DC servo */ + snd_soc_update_bits(codec, WM8904_DC_SERVO_0, + dcs_mask, dcs_mask); + + /* Either calibrate the DC servo or restore cached state + * if we have that. + */ + if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) { + dev_dbg(codec->dev, "Restoring DC servo state\n"); + + snd_soc_write(codec, dcs_l_reg, + wm8904->dcs_state[dcs_l]); + snd_soc_write(codec, dcs_r_reg, + wm8904->dcs_state[dcs_r]); + + snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask); + + timeout = 20; + } else { + dev_dbg(codec->dev, "Calibrating DC servo\n"); + + snd_soc_write(codec, WM8904_DC_SERVO_1, + dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT); + + timeout = 500; + } + + /* Wait for DC servo to complete */ + dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT; + do { + val = snd_soc_read(codec, WM8904_DC_SERVO_READBACK_0); + if ((val & dcs_mask) == dcs_mask) + break; + + msleep(1); + } while (--timeout); + + if ((val & dcs_mask) != dcs_mask) + dev_warn(codec->dev, "DC servo timed out\n"); + else + dev_dbg(codec->dev, "DC servo ready\n"); + + /* Enable the output stage */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP, + WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP); + break; + + case SND_SOC_DAPM_POST_PMU: + /* Unshort the output itself */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_RMV_SHORT | + WM8904_HPR_RMV_SHORT, + WM8904_HPL_RMV_SHORT | + WM8904_HPR_RMV_SHORT); + + break; + + case SND_SOC_DAPM_PRE_PMD: + /* Short the output */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_RMV_SHORT | + WM8904_HPR_RMV_SHORT, 0); + break; + + case SND_SOC_DAPM_POST_PMD: + /* Cache the DC servo configuration; this will be + * invalidated if we change the configuration. */ + wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg); + wm8904->dcs_state[dcs_r] = snd_soc_read(codec, dcs_r_reg); + + snd_soc_update_bits(codec, WM8904_DC_SERVO_0, + dcs_mask, 0); + + /* Disable the amplifier input and output stages */ + snd_soc_update_bits(codec, reg, + WM8904_HPL_ENA | WM8904_HPR_ENA | + WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY | + WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP, + 0); + + /* PGAs too */ + snd_soc_update_bits(codec, pwr_reg, + WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA, + 0); + break; + } + + return 0; +} + +static const char *lin_text[] = { + "IN1L", "IN2L", "IN3L" +}; + +static const struct soc_enum lin_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 2, 3, lin_text); + +static const struct snd_kcontrol_new lin_mux = + SOC_DAPM_ENUM("Left Capture Mux", lin_enum); + +static const struct soc_enum lin_inv_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 4, 3, lin_text); + +static const struct snd_kcontrol_new lin_inv_mux = + SOC_DAPM_ENUM("Left Capture Inveting Mux", lin_inv_enum); + +static const char *rin_text[] = { + "IN1R", "IN2R", "IN3R" +}; + +static const struct soc_enum rin_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 2, 3, rin_text); + +static const struct snd_kcontrol_new rin_mux = + SOC_DAPM_ENUM("Right Capture Mux", rin_enum); + +static const struct soc_enum rin_inv_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 4, 3, rin_text); + +static const struct snd_kcontrol_new rin_inv_mux = + SOC_DAPM_ENUM("Right Capture Inveting Mux", rin_inv_enum); + +static const char *aif_text[] = { + "Left", "Right" +}; + +static const struct soc_enum aifoutl_enum = + SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 7, 2, aif_text); + +static const struct snd_kcontrol_new aifoutl_mux = + SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum); + +static const struct soc_enum aifoutr_enum = + SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 6, 2, aif_text); + +static const struct snd_kcontrol_new aifoutr_mux = + SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum); + +static const struct soc_enum aifinl_enum = + SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 5, 2, aif_text); + +static const struct snd_kcontrol_new aifinl_mux = + SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum); + +static const struct soc_enum aifinr_enum = + SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 4, 2, aif_text); + +static const struct snd_kcontrol_new aifinr_mux = + SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum); + +static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = { +SND_SOC_DAPM_SUPPLY("SYSCLK", WM8904_CLOCK_RATES_2, 2, 0, sysclk_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8904_CLOCK_RATES_2, 1, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("TOCLK", WM8904_CLOCK_RATES_2, 0, 0, NULL, 0), +}; + +static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = { +SND_SOC_DAPM_INPUT("IN1L"), +SND_SOC_DAPM_INPUT("IN1R"), +SND_SOC_DAPM_INPUT("IN2L"), +SND_SOC_DAPM_INPUT("IN2R"), +SND_SOC_DAPM_INPUT("IN3L"), +SND_SOC_DAPM_INPUT("IN3R"), + +SND_SOC_DAPM_SUPPLY("MICBIAS", WM8904_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0), + +SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lin_mux), +SND_SOC_DAPM_MUX("Left Capture Inverting Mux", SND_SOC_NOPM, 0, 0, + &lin_inv_mux), +SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rin_mux), +SND_SOC_DAPM_MUX("Right Capture Inverting Mux", SND_SOC_NOPM, 0, 0, + &rin_inv_mux), + +SND_SOC_DAPM_PGA("Left Capture PGA", WM8904_POWER_MANAGEMENT_0, 1, 0, + NULL, 0), +SND_SOC_DAPM_PGA("Right Capture PGA", WM8904_POWER_MANAGEMENT_0, 0, 0, + NULL, 0), + +SND_SOC_DAPM_ADC("ADCL", NULL, WM8904_POWER_MANAGEMENT_6, 1, 0), +SND_SOC_DAPM_ADC("ADCR", NULL, WM8904_POWER_MANAGEMENT_6, 0, 0), + +SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux), +SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux), + +SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0), +SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0), +}; + +static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = { +SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0), +SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0), + +SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux), +SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux), + +SND_SOC_DAPM_DAC("DACL", NULL, WM8904_POWER_MANAGEMENT_6, 3, 0), +SND_SOC_DAPM_DAC("DACR", NULL, WM8904_POWER_MANAGEMENT_6, 2, 0), + +SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event, + SND_SOC_DAPM_POST_PMU), + +SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0), +SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + +SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0), +SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + +SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0, + 0, NULL, 0, out_pga_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), +SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0, + 0, NULL, 0, out_pga_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), + +SND_SOC_DAPM_OUTPUT("HPOUTL"), +SND_SOC_DAPM_OUTPUT("HPOUTR"), +SND_SOC_DAPM_OUTPUT("LINEOUTL"), +SND_SOC_DAPM_OUTPUT("LINEOUTR"), +}; + +static const char *out_mux_text[] = { + "DAC", "Bypass" +}; + +static const struct soc_enum hpl_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 3, 2, out_mux_text); + +static const struct snd_kcontrol_new hpl_mux = + SOC_DAPM_ENUM("HPL Mux", hpl_enum); + +static const struct soc_enum hpr_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 2, 2, out_mux_text); + +static const struct snd_kcontrol_new hpr_mux = + SOC_DAPM_ENUM("HPR Mux", hpr_enum); + +static const struct soc_enum linel_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 1, 2, out_mux_text); + +static const struct snd_kcontrol_new linel_mux = + SOC_DAPM_ENUM("LINEL Mux", linel_enum); + +static const struct soc_enum liner_enum = + SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 0, 2, out_mux_text); + +static const struct snd_kcontrol_new liner_mux = + SOC_DAPM_ENUM("LINEL Mux", liner_enum); + +static const char *sidetone_text[] = { + "None", "Left", "Right" +}; + +static const struct soc_enum dacl_sidetone_enum = + SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 2, 3, sidetone_text); + +static const struct snd_kcontrol_new dacl_sidetone_mux = + SOC_DAPM_ENUM("Left Sidetone Mux", dacl_sidetone_enum); + +static const struct soc_enum dacr_sidetone_enum = + SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 0, 3, sidetone_text); + +static const struct snd_kcontrol_new dacr_sidetone_mux = + SOC_DAPM_ENUM("Right Sidetone Mux", dacr_sidetone_enum); + +static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = { +SND_SOC_DAPM_SUPPLY("Class G", WM8904_CLASS_W_0, 0, 1, NULL, 0), +SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0), +SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0), + +SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &dacl_sidetone_mux), +SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &dacr_sidetone_mux), + +SND_SOC_DAPM_MUX("HPL Mux", SND_SOC_NOPM, 0, 0, &hpl_mux), +SND_SOC_DAPM_MUX("HPR Mux", SND_SOC_NOPM, 0, 0, &hpr_mux), +SND_SOC_DAPM_MUX("LINEL Mux", SND_SOC_NOPM, 0, 0, &linel_mux), +SND_SOC_DAPM_MUX("LINER Mux", SND_SOC_NOPM, 0, 0, &liner_mux), +}; + +static const struct snd_soc_dapm_route core_intercon[] = { + { "CLK_DSP", NULL, "SYSCLK" }, + { "TOCLK", NULL, "SYSCLK" }, +}; + +static const struct snd_soc_dapm_route adc_intercon[] = { + { "Left Capture Mux", "IN1L", "IN1L" }, + { "Left Capture Mux", "IN2L", "IN2L" }, + { "Left Capture Mux", "IN3L", "IN3L" }, + + { "Left Capture Inverting Mux", "IN1L", "IN1L" }, + { "Left Capture Inverting Mux", "IN2L", "IN2L" }, + { "Left Capture Inverting Mux", "IN3L", "IN3L" }, + + { "Right Capture Mux", "IN1R", "IN1R" }, + { "Right Capture Mux", "IN2R", "IN2R" }, + { "Right Capture Mux", "IN3R", "IN3R" }, + + { "Right Capture Inverting Mux", "IN1R", "IN1R" }, + { "Right Capture Inverting Mux", "IN2R", "IN2R" }, + { "Right Capture Inverting Mux", "IN3R", "IN3R" }, + + { "Left Capture PGA", NULL, "Left Capture Mux" }, + { "Left Capture PGA", NULL, "Left Capture Inverting Mux" }, + + { "Right Capture PGA", NULL, "Right Capture Mux" }, + { "Right Capture PGA", NULL, "Right Capture Inverting Mux" }, + + { "AIFOUTL", "Left", "ADCL" }, + { "AIFOUTL", "Right", "ADCR" }, + { "AIFOUTR", "Left", "ADCL" }, + { "AIFOUTR", "Right", "ADCR" }, + + { "ADCL", NULL, "CLK_DSP" }, + { "ADCL", NULL, "Left Capture PGA" }, + + { "ADCR", NULL, "CLK_DSP" }, + { "ADCR", NULL, "Right Capture PGA" }, +}; + +static const struct snd_soc_dapm_route dac_intercon[] = { + { "DACL", "Right", "AIFINR" }, + { "DACL", "Left", "AIFINL" }, + { "DACL", NULL, "CLK_DSP" }, + + { "DACR", "Right", "AIFINR" }, + { "DACR", "Left", "AIFINL" }, + { "DACR", NULL, "CLK_DSP" }, + + { "Charge pump", NULL, "SYSCLK" }, + + { "Headphone Output", NULL, "HPL PGA" }, + { "Headphone Output", NULL, "HPR PGA" }, + { "Headphone Output", NULL, "Charge pump" }, + { "Headphone Output", NULL, "TOCLK" }, + + { "Line Output", NULL, "LINEL PGA" }, + { "Line Output", NULL, "LINER PGA" }, + { "Line Output", NULL, "Charge pump" }, + { "Line Output", NULL, "TOCLK" }, + + { "HPOUTL", NULL, "Headphone Output" }, + { "HPOUTR", NULL, "Headphone Output" }, + + { "LINEOUTL", NULL, "Line Output" }, + { "LINEOUTR", NULL, "Line Output" }, +}; + +static const struct snd_soc_dapm_route wm8904_intercon[] = { + { "Left Sidetone", "Left", "ADCL" }, + { "Left Sidetone", "Right", "ADCR" }, + { "DACL", NULL, "Left Sidetone" }, + + { "Right Sidetone", "Left", "ADCL" }, + { "Right Sidetone", "Right", "ADCR" }, + { "DACR", NULL, "Right Sidetone" }, + + { "Left Bypass", NULL, "Class G" }, + { "Left Bypass", NULL, "Left Capture PGA" }, + + { "Right Bypass", NULL, "Class G" }, + { "Right Bypass", NULL, "Right Capture PGA" }, + + { "HPL Mux", "DAC", "DACL" }, + { "HPL Mux", "Bypass", "Left Bypass" }, + + { "HPR Mux", "DAC", "DACR" }, + { "HPR Mux", "Bypass", "Right Bypass" }, + + { "LINEL Mux", "DAC", "DACL" }, + { "LINEL Mux", "Bypass", "Left Bypass" }, + + { "LINER Mux", "DAC", "DACR" }, + { "LINER Mux", "Bypass", "Right Bypass" }, + + { "HPL PGA", NULL, "HPL Mux" }, + { "HPR PGA", NULL, "HPR Mux" }, + + { "LINEL PGA", NULL, "LINEL Mux" }, + { "LINER PGA", NULL, "LINER Mux" }, +}; + +static const struct snd_soc_dapm_route wm8912_intercon[] = { + { "HPL PGA", NULL, "DACL" }, + { "HPR PGA", NULL, "DACR" }, + + { "LINEL PGA", NULL, "DACL" }, + { "LINER PGA", NULL, "DACR" }, +}; + +static int wm8904_add_widgets(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm = &codec->dapm; + + snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets, + ARRAY_SIZE(wm8904_core_dapm_widgets)); + snd_soc_dapm_add_routes(dapm, core_intercon, + ARRAY_SIZE(core_intercon)); + + switch (wm8904->devtype) { + case WM8904: + snd_soc_add_codec_controls(codec, wm8904_adc_snd_controls, + ARRAY_SIZE(wm8904_adc_snd_controls)); + snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls, + ARRAY_SIZE(wm8904_dac_snd_controls)); + snd_soc_add_codec_controls(codec, wm8904_snd_controls, + ARRAY_SIZE(wm8904_snd_controls)); + + snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets, + ARRAY_SIZE(wm8904_adc_dapm_widgets)); + snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets, + ARRAY_SIZE(wm8904_dac_dapm_widgets)); + snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets, + ARRAY_SIZE(wm8904_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, core_intercon, + ARRAY_SIZE(core_intercon)); + snd_soc_dapm_add_routes(dapm, adc_intercon, + ARRAY_SIZE(adc_intercon)); + snd_soc_dapm_add_routes(dapm, dac_intercon, + ARRAY_SIZE(dac_intercon)); + snd_soc_dapm_add_routes(dapm, wm8904_intercon, + ARRAY_SIZE(wm8904_intercon)); + break; + + case WM8912: + snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls, + ARRAY_SIZE(wm8904_dac_snd_controls)); + + snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets, + ARRAY_SIZE(wm8904_dac_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, dac_intercon, + ARRAY_SIZE(dac_intercon)); + snd_soc_dapm_add_routes(dapm, wm8912_intercon, + ARRAY_SIZE(wm8912_intercon)); + break; + } + + snd_soc_dapm_new_widgets(dapm); + return 0; +} + +static struct { + int ratio; + unsigned int clk_sys_rate; +} clk_sys_rates[] = { + { 64, 0 }, + { 128, 1 }, + { 192, 2 }, + { 256, 3 }, + { 384, 4 }, + { 512, 5 }, + { 786, 6 }, + { 1024, 7 }, + { 1408, 8 }, + { 1536, 9 }, +}; + +static struct { + int rate; + int sample_rate; +} sample_rates[] = { + { 8000, 0 }, + { 11025, 1 }, + { 12000, 1 }, + { 16000, 2 }, + { 22050, 3 }, + { 24000, 3 }, + { 32000, 4 }, + { 44100, 5 }, + { 48000, 5 }, +}; + +static struct { + int div; /* *10 due to .5s */ + int bclk_div; +} bclk_divs[] = { + { 10, 0 }, + { 15, 1 }, + { 20, 2 }, + { 30, 3 }, + { 40, 4 }, + { 50, 5 }, + { 55, 6 }, + { 60, 7 }, + { 80, 8 }, + { 100, 9 }, + { 110, 10 }, + { 120, 11 }, + { 160, 12 }, + { 200, 13 }, + { 220, 14 }, + { 240, 16 }, + { 200, 17 }, + { 320, 18 }, + { 440, 19 }, + { 480, 20 }, +}; + + +static int wm8904_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int ret, i, best, best_val, cur_val; + unsigned int aif1 = 0; + unsigned int aif2 = 0; + unsigned int aif3 = 0; + unsigned int clock1 = 0; + unsigned int dac_digital1 = 0; + + /* What BCLK do we need? */ + wm8904->fs = params_rate(params); + if (wm8904->tdm_slots) { + dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n", + wm8904->tdm_slots, wm8904->tdm_width); + wm8904->bclk = snd_soc_calc_bclk(wm8904->fs, + wm8904->tdm_width, 2, + wm8904->tdm_slots); + } else { + wm8904->bclk = snd_soc_params_to_bclk(params); + } + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + aif1 |= 0x40; + break; + case SNDRV_PCM_FORMAT_S24_LE: + aif1 |= 0x80; + break; + case SNDRV_PCM_FORMAT_S32_LE: + aif1 |= 0xc0; + break; + default: + return -EINVAL; + } + + + dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8904->bclk); + + ret = wm8904_configure_clocking(codec); + if (ret != 0) + return ret; + + /* Select nearest CLK_SYS_RATE */ + best = 0; + best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0].ratio) + - wm8904->fs); + for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) { + cur_val = abs((wm8904->sysclk_rate / + clk_sys_rates[i].ratio) - wm8904->fs); + if (cur_val < best_val) { + best = i; + best_val = cur_val; + } + } + dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n", + clk_sys_rates[best].ratio); + clock1 |= (clk_sys_rates[best].clk_sys_rate + << WM8904_CLK_SYS_RATE_SHIFT); + + /* SAMPLE_RATE */ + best = 0; + best_val = abs(wm8904->fs - sample_rates[0].rate); + for (i = 1; i < ARRAY_SIZE(sample_rates); i++) { + /* Closest match */ + cur_val = abs(wm8904->fs - sample_rates[i].rate); + if (cur_val < best_val) { + best = i; + best_val = cur_val; + } + } + dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n", + sample_rates[best].rate); + clock1 |= (sample_rates[best].sample_rate + << WM8904_SAMPLE_RATE_SHIFT); + + /* Enable sloping stopband filter for low sample rates */ + if (wm8904->fs <= 24000) + dac_digital1 |= WM8904_DAC_SB_FILT; + + /* BCLK_DIV */ + best = 0; + best_val = INT_MAX; + for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { + cur_val = ((wm8904->sysclk_rate * 10) / bclk_divs[i].div) + - wm8904->bclk; + if (cur_val < 0) /* Table is sorted */ + break; + if (cur_val < best_val) { + best = i; + best_val = cur_val; + } + } + wm8904->bclk = (wm8904->sysclk_rate * 10) / bclk_divs[best].div; + dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n", + bclk_divs[best].div, wm8904->bclk); + aif2 |= bclk_divs[best].bclk_div; + + /* LRCLK is a simple fraction of BCLK */ + dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8904->bclk / wm8904->fs); + aif3 |= wm8904->bclk / wm8904->fs; + + /* Apply the settings */ + snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, + WM8904_DAC_SB_FILT, dac_digital1); + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, + WM8904_AIF_WL_MASK, aif1); + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_2, + WM8904_BCLK_DIV_MASK, aif2); + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3, + WM8904_LRCLK_RATE_MASK, aif3); + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_1, + WM8904_SAMPLE_RATE_MASK | + WM8904_CLK_SYS_RATE_MASK, clock1); + + /* Update filters for the new settings */ + wm8904_set_retune_mobile(codec); + wm8904_set_deemph(codec); + + return 0; +} + + +static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8904_priv *priv = snd_soc_codec_get_drvdata(codec); + + switch (clk_id) { + case WM8904_CLK_MCLK: + priv->sysclk_src = clk_id; + priv->mclk_rate = freq; + break; + + case WM8904_CLK_FLL: + priv->sysclk_src = clk_id; + break; + + default: + return -EINVAL; + } + + dev_dbg(dai->dev, "Clock source is %d at %uHz\n", clk_id, freq); + + wm8904_configure_clocking(codec); + + return 0; +} + +static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_codec *codec = dai->codec; + unsigned int aif1 = 0; + unsigned int aif3 = 0; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + break; + case SND_SOC_DAIFMT_CBS_CFM: + aif3 |= WM8904_LRCLK_DIR; + break; + case SND_SOC_DAIFMT_CBM_CFS: + aif1 |= WM8904_BCLK_DIR; + break; + case SND_SOC_DAIFMT_CBM_CFM: + aif1 |= WM8904_BCLK_DIR; + aif3 |= WM8904_LRCLK_DIR; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_B: + aif1 |= WM8904_AIF_LRCLK_INV; + case SND_SOC_DAIFMT_DSP_A: + aif1 |= 0x3; + break; + case SND_SOC_DAIFMT_I2S: + aif1 |= 0x2; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + aif1 |= 0x1; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + case SND_SOC_DAIFMT_DSP_B: + /* frame inversion not valid for DSP modes */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + aif1 |= WM8904_AIF_BCLK_INV; + break; + default: + return -EINVAL; + } + break; + + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_RIGHT_J: + case SND_SOC_DAIFMT_LEFT_J: + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV; + break; + case SND_SOC_DAIFMT_IB_NF: + aif1 |= WM8904_AIF_BCLK_INV; + break; + case SND_SOC_DAIFMT_NB_IF: + aif1 |= WM8904_AIF_LRCLK_INV; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, + WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV | + WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1); + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3, + WM8904_LRCLK_DIR, aif3); + + return 0; +} + + +static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int aif1 = 0; + + /* Don't need to validate anything if we're turning off TDM */ + if (slots == 0) + goto out; + + /* Note that we allow configurations we can't handle ourselves - + * for example, we can generate clocks for slots 2 and up even if + * we can't use those slots ourselves. + */ + aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM; + + switch (rx_mask) { + case 3: + break; + case 0xc: + aif1 |= WM8904_AIFADC_TDM_CHAN; + break; + default: + return -EINVAL; + } + + + switch (tx_mask) { + case 3: + break; + case 0xc: + aif1 |= WM8904_AIFDAC_TDM_CHAN; + break; + default: + return -EINVAL; + } + +out: + wm8904->tdm_width = slot_width; + wm8904->tdm_slots = slots / 2; + + snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1, + WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN | + WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1); + + return 0; +} + +struct _fll_div { + u16 fll_fratio; + u16 fll_outdiv; + u16 fll_clk_ref_div; + u16 n; + u16 k; +}; + +/* The size in bits of the FLL divide multiplied by 10 + * to allow rounding later */ +#define FIXED_FLL_SIZE ((1 << 16) * 10) + +static struct { + unsigned int min; + unsigned int max; + u16 fll_fratio; + int ratio; +} fll_fratios[] = { + { 0, 64000, 4, 16 }, + { 64000, 128000, 3, 8 }, + { 128000, 256000, 2, 4 }, + { 256000, 1000000, 1, 2 }, + { 1000000, 13500000, 0, 1 }, +}; + +static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, + unsigned int Fout) +{ + u64 Kpart; + unsigned int K, Ndiv, Nmod, target; + unsigned int div; + int i; + + /* Fref must be <=13.5MHz */ + div = 1; + fll_div->fll_clk_ref_div = 0; + while ((Fref / div) > 13500000) { + div *= 2; + fll_div->fll_clk_ref_div++; + + if (div > 8) { + pr_err("Can't scale %dMHz input down to <=13.5MHz\n", + Fref); + return -EINVAL; + } + } + + pr_debug("Fref=%u Fout=%u\n", Fref, Fout); + + /* Apply the division for our remaining calculations */ + Fref /= div; + + /* Fvco should be 90-100MHz; don't check the upper bound */ + div = 4; + while (Fout * div < 90000000) { + div++; + if (div > 64) { + pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n", + Fout); + return -EINVAL; + } + } + target = Fout * div; + fll_div->fll_outdiv = div - 1; + + pr_debug("Fvco=%dHz\n", target); + + /* Find an appropriate FLL_FRATIO and factor it out of the target */ + for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) { + if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) { + fll_div->fll_fratio = fll_fratios[i].fll_fratio; + target /= fll_fratios[i].ratio; + break; + } + } + if (i == ARRAY_SIZE(fll_fratios)) { + pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref); + return -EINVAL; + } + + /* Now, calculate N.K */ + Ndiv = target / Fref; + + fll_div->n = Ndiv; + Nmod = target % Fref; + pr_debug("Nmod=%d\n", Nmod); + + /* Calculate fractional part - scale up so we can round. */ + Kpart = FIXED_FLL_SIZE * (long long)Nmod; + + do_div(Kpart, Fref); + + K = Kpart & 0xFFFFFFFF; + + if ((K % 10) >= 5) + K += 5; + + /* Move down to proper range now rounding is done */ + fll_div->k = K / 10; + + pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n", + fll_div->n, fll_div->k, + fll_div->fll_fratio, fll_div->fll_outdiv, + fll_div->fll_clk_ref_div); + + return 0; +} + +static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source, + unsigned int Fref, unsigned int Fout) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct _fll_div fll_div; + int ret, val; + int clock2, fll1; + + /* Any change? */ + if (source == wm8904->fll_src && Fref == wm8904->fll_fref && + Fout == wm8904->fll_fout) + return 0; + + clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2); + + if (Fout == 0) { + dev_dbg(codec->dev, "FLL disabled\n"); + + wm8904->fll_fref = 0; + wm8904->fll_fout = 0; + + /* Gate SYSCLK to avoid glitches */ + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, + WM8904_CLK_SYS_ENA, 0); + + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); + + goto out; + } + + /* Validate the FLL ID */ + switch (source) { + case WM8904_FLL_MCLK: + case WM8904_FLL_LRCLK: + case WM8904_FLL_BCLK: + ret = fll_factors(&fll_div, Fref, Fout); + if (ret != 0) + return ret; + break; + + case WM8904_FLL_FREE_RUNNING: + dev_dbg(codec->dev, "Using free running FLL\n"); + /* Force 12MHz and output/4 for now */ + Fout = 12000000; + Fref = 12000000; + + memset(&fll_div, 0, sizeof(fll_div)); + fll_div.fll_outdiv = 3; + break; + + default: + dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id); + return -EINVAL; + } + + /* Save current state then disable the FLL and SYSCLK to avoid + * misclocking */ + fll1 = snd_soc_read(codec, WM8904_FLL_CONTROL_1); + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, + WM8904_CLK_SYS_ENA, 0); + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0); + + /* Unlock forced oscilator control to switch it on/off */ + snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1, + WM8904_USER_KEY, WM8904_USER_KEY); + + if (fll_id == WM8904_FLL_FREE_RUNNING) { + val = WM8904_FLL_FRC_NCO; + } else { + val = 0; + } + + snd_soc_update_bits(codec, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO, + val); + snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1, + WM8904_USER_KEY, 0); + + switch (fll_id) { + case WM8904_FLL_MCLK: + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, + WM8904_FLL_CLK_REF_SRC_MASK, 0); + break; + + case WM8904_FLL_LRCLK: + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, + WM8904_FLL_CLK_REF_SRC_MASK, 1); + break; + + case WM8904_FLL_BCLK: + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, + WM8904_FLL_CLK_REF_SRC_MASK, 2); + break; + } + + if (fll_div.k) + val = WM8904_FLL_FRACN_ENA; + else + val = 0; + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_FRACN_ENA, val); + + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_2, + WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK, + (fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) | + (fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT)); + + snd_soc_write(codec, WM8904_FLL_CONTROL_3, fll_div.k); + + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK, + fll_div.n << WM8904_FLL_N_SHIFT); + + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5, + WM8904_FLL_CLK_REF_DIV_MASK, + fll_div.fll_clk_ref_div + << WM8904_FLL_CLK_REF_DIV_SHIFT); + + dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout); + + wm8904->fll_fref = Fref; + wm8904->fll_fout = Fout; + wm8904->fll_src = source; + + /* Enable the FLL if it was previously active */ + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_OSC_ENA, fll1); + snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1, + WM8904_FLL_ENA, fll1); + +out: + /* Reenable SYSCLK if it was previously active */ + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2, + WM8904_CLK_SYS_ENA, clock2); + + return 0; +} + +static int wm8904_digital_mute(struct snd_soc_dai *codec_dai, int mute) +{ + struct snd_soc_codec *codec = codec_dai->codec; + int val; + + if (mute) + val = WM8904_DAC_MUTE; + else + val = 0; + + snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val); + + return 0; +} + +static int wm8904_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + int ret; + + switch (level) { + case SND_SOC_BIAS_ON: + break; + + case SND_SOC_BIAS_PREPARE: + /* VMID resistance 2*50k */ + snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, + WM8904_VMID_RES_MASK, + 0x1 << WM8904_VMID_RES_SHIFT); + + /* Normal bias current */ + snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, + WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT); + break; + + case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + if (ret != 0) { + dev_err(codec->dev, + "Failed to enable supplies: %d\n", + ret); + return ret; + } + + regcache_sync(wm8904->regmap); + + /* Enable bias */ + snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, + WM8904_BIAS_ENA, WM8904_BIAS_ENA); + + /* Enable VMID, VMID buffering, 2*5k resistance */ + snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, + WM8904_VMID_ENA | + WM8904_VMID_RES_MASK, + WM8904_VMID_ENA | + 0x3 << WM8904_VMID_RES_SHIFT); + + /* Let VMID ramp */ + msleep(1); + } + + /* Maintain VMID with 2*250k */ + snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, + WM8904_VMID_RES_MASK, + 0x2 << WM8904_VMID_RES_SHIFT); + + /* Bias current *0.5 */ + snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, + WM8904_ISEL_MASK, 0); + break; + + case SND_SOC_BIAS_OFF: + /* Turn off VMID */ + snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0, + WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0); + + /* Stop bias generation */ + snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, + WM8904_BIAS_ENA, 0); + +#ifdef CONFIG_REGULATOR + /* Post 2.6.34 we will be able to get a callback when + * the regulators are disabled which we can use but + * for now just assume that the power will be cut if + * the regulator API is in use. + */ + codec->cache_sync = 1; +#endif + + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + break; + } + codec->dapm.bias_level = level; + return 0; +} + +#define WM8904_RATES SNDRV_PCM_RATE_8000_96000 + +#define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops wm8904_dai_ops = { + .set_sysclk = wm8904_set_sysclk, + .set_fmt = wm8904_set_fmt, + .set_tdm_slot = wm8904_set_tdm_slot, + .set_pll = wm8904_set_fll, + .hw_params = wm8904_hw_params, + .digital_mute = wm8904_digital_mute, +}; + +static struct snd_soc_dai_driver wm8904_dai = { + .name = "wm8904-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = WM8904_RATES, + .formats = WM8904_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = WM8904_RATES, + .formats = WM8904_FORMATS, + }, + .ops = &wm8904_dai_ops, + .symmetric_rates = 1, +}; + +#ifdef CONFIG_PM +static int wm8904_suspend(struct snd_soc_codec *codec) +{ + wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); + + return 0; +} + +static int wm8904_resume(struct snd_soc_codec *codec) +{ + wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + return 0; +} +#else +#define wm8904_suspend NULL +#define wm8904_resume NULL +#endif + +static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + struct snd_kcontrol_new control = + SOC_ENUM_EXT("EQ Mode", + wm8904->retune_mobile_enum, + wm8904_get_retune_mobile_enum, + wm8904_put_retune_mobile_enum); + int ret, i, j; + const char **t; + + /* We need an array of texts for the enum API but the number + * of texts is likely to be less than the number of + * configurations due to the sample rate dependency of the + * configurations. */ + wm8904->num_retune_mobile_texts = 0; + wm8904->retune_mobile_texts = NULL; + for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { + for (j = 0; j < wm8904->num_retune_mobile_texts; j++) { + if (strcmp(pdata->retune_mobile_cfgs[i].name, + wm8904->retune_mobile_texts[j]) == 0) + break; + } + + if (j != wm8904->num_retune_mobile_texts) + continue; + + /* Expand the array... */ + t = krealloc(wm8904->retune_mobile_texts, + sizeof(char *) * + (wm8904->num_retune_mobile_texts + 1), + GFP_KERNEL); + if (t == NULL) + continue; + + /* ...store the new entry... */ + t[wm8904->num_retune_mobile_texts] = + pdata->retune_mobile_cfgs[i].name; + + /* ...and remember the new version. */ + wm8904->num_retune_mobile_texts++; + wm8904->retune_mobile_texts = t; + } + + dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n", + wm8904->num_retune_mobile_texts); + + wm8904->retune_mobile_enum.max = wm8904->num_retune_mobile_texts; + wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts; + + ret = snd_soc_add_codec_controls(codec, &control, 1); + if (ret != 0) + dev_err(codec->dev, + "Failed to add ReTune Mobile control: %d\n", ret); +} + +static void wm8904_handle_pdata(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int ret, i; + + if (!pdata) { + snd_soc_add_codec_controls(codec, wm8904_eq_controls, + ARRAY_SIZE(wm8904_eq_controls)); + return; + } + + dev_dbg(codec->dev, "%d DRC configurations\n", pdata->num_drc_cfgs); + + if (pdata->num_drc_cfgs) { + struct snd_kcontrol_new control = + SOC_ENUM_EXT("DRC Mode", wm8904->drc_enum, + wm8904_get_drc_enum, wm8904_put_drc_enum); + + /* We need an array of texts for the enum API */ + wm8904->drc_texts = kmalloc(sizeof(char *) + * pdata->num_drc_cfgs, GFP_KERNEL); + if (!wm8904->drc_texts) { + dev_err(codec->dev, + "Failed to allocate %d DRC config texts\n", + pdata->num_drc_cfgs); + return; + } + + for (i = 0; i < pdata->num_drc_cfgs; i++) + wm8904->drc_texts[i] = pdata->drc_cfgs[i].name; + + wm8904->drc_enum.max = pdata->num_drc_cfgs; + wm8904->drc_enum.texts = wm8904->drc_texts; + + ret = snd_soc_add_codec_controls(codec, &control, 1); + if (ret != 0) + dev_err(codec->dev, + "Failed to add DRC mode control: %d\n", ret); + + wm8904_set_drc(codec); + } + + dev_dbg(codec->dev, "%d ReTune Mobile configurations\n", + pdata->num_retune_mobile_cfgs); + + if (pdata->num_retune_mobile_cfgs) + wm8904_handle_retune_mobile_pdata(codec); + else + snd_soc_add_codec_controls(codec, wm8904_eq_controls, + ARRAY_SIZE(wm8904_eq_controls)); +} + + +static int wm8904_probe(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + struct wm8904_pdata *pdata = wm8904->pdata; + int ret, i; + + codec->cache_sync = 1; + codec->control_data = wm8904->regmap; + + switch (wm8904->devtype) { + case WM8904: + break; + case WM8912: + memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture)); + break; + default: + dev_err(codec->dev, "Unknown device type %d\n", + wm8904->devtype); + return -EINVAL; + } + + 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; + } + + for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++) + wm8904->supplies[i].supply = wm8904_supply_names[i]; + + ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies), + wm8904->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); + goto err_get; + } + + ret = snd_soc_read(codec, WM8904_SW_RESET_AND_ID); + if (ret < 0) { + dev_err(codec->dev, "Failed to read ID register\n"); + goto err_enable; + } + if (ret != 0x8904) { + dev_err(codec->dev, "Device is not a WM8904, ID is %x\n", ret); + ret = -EINVAL; + goto err_enable; + } + + ret = snd_soc_read(codec, WM8904_REVISION); + if (ret < 0) { + dev_err(codec->dev, "Failed to read device revision: %d\n", + ret); + goto err_enable; + } + dev_info(codec->dev, "revision %c\n", ret + 'A'); + + ret = wm8904_reset(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to issue reset\n"); + goto err_enable; + } + + /* Change some default settings - latch VU and enable ZC */ + snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, + WM8904_ADC_VU, WM8904_ADC_VU); + snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_RIGHT, + WM8904_ADC_VU, WM8904_ADC_VU); + snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_LEFT, + WM8904_DAC_VU, WM8904_DAC_VU); + snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_RIGHT, + WM8904_DAC_VU, WM8904_DAC_VU); + snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_LEFT, + WM8904_HPOUT_VU | WM8904_HPOUTLZC, + WM8904_HPOUT_VU | WM8904_HPOUTLZC); + snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_RIGHT, + WM8904_HPOUT_VU | WM8904_HPOUTRZC, + WM8904_HPOUT_VU | WM8904_HPOUTRZC); + snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_LEFT, + WM8904_LINEOUT_VU | WM8904_LINEOUTLZC, + WM8904_LINEOUT_VU | WM8904_LINEOUTLZC); + snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_RIGHT, + WM8904_LINEOUT_VU | WM8904_LINEOUTRZC, + WM8904_LINEOUT_VU | WM8904_LINEOUTRZC); + snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, + WM8904_SR_MODE, 0); + + /* Apply configuration from the platform data. */ + if (wm8904->pdata) { + for (i = 0; i < WM8904_GPIO_REGS; i++) { + if (!pdata->gpio_cfg[i]) + continue; + + regmap_update_bits(wm8904->regmap, + WM8904_GPIO_CONTROL_1 + i, + 0xffff, + pdata->gpio_cfg[i]); + } + + /* Zero is the default value for these anyway */ + for (i = 0; i < WM8904_MIC_REGS; i++) + regmap_update_bits(wm8904->regmap, + WM8904_MIC_BIAS_CONTROL_0 + i, + 0xffff, + pdata->mic_cfg[i]); + } + + /* Set Class W by default - this will be managed by the Class + * G widget at runtime where bypass paths are available. + */ + snd_soc_update_bits(codec, WM8904_CLASS_W_0, + WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR); + + /* Use normal bias source */ + snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, + WM8904_POBCTRL, 0); + + wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + /* Bias level configuration will have done an extra enable */ + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + + wm8904_handle_pdata(codec); + + wm8904_add_widgets(codec); + + return 0; + +err_enable: + regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); +err_get: + regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + return ret; +} + +static int wm8904_remove(struct snd_soc_codec *codec) +{ + struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); + + wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF); + regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + kfree(wm8904->retune_mobile_texts); + kfree(wm8904->drc_texts); + + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_wm8904 = { + .probe = wm8904_probe, + .remove = wm8904_remove, + .suspend = wm8904_suspend, + .resume = wm8904_resume, + .set_bias_level = wm8904_set_bias_level, + .idle_bias_off = true, +}; + +static const struct regmap_config wm8904_regmap = { + .reg_bits = 8, + .val_bits = 16, + + .max_register = WM8904_MAX_REGISTER, + .volatile_reg = wm8904_volatile_register, + .readable_reg = wm8904_readable_register, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = wm8904_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults), +}; + +static __devinit int wm8904_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct wm8904_priv *wm8904; + int ret; + + wm8904 = devm_kzalloc(&i2c->dev, sizeof(struct wm8904_priv), + GFP_KERNEL); + if (wm8904 == NULL) + return -ENOMEM; + + wm8904->regmap = regmap_init_i2c(i2c, &wm8904_regmap); + if (IS_ERR(wm8904->regmap)) { + ret = PTR_ERR(wm8904->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + wm8904->devtype = id->driver_data; + i2c_set_clientdata(i2c, wm8904); + wm8904->pdata = i2c->dev.platform_data; + + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8904, &wm8904_dai, 1); + if (ret != 0) + goto err; + + return 0; + +err: + regmap_exit(wm8904->regmap); + return ret; +} + +static __devexit int wm8904_i2c_remove(struct i2c_client *client) +{ + struct wm8904_priv *wm8904 = i2c_get_clientdata(client); + snd_soc_unregister_codec(&client->dev); + regmap_exit(wm8904->regmap); + return 0; +} + +static const struct i2c_device_id wm8904_i2c_id[] = { + { "wm8904", WM8904 }, + { "wm8912", WM8912 }, + { "wm8918", WM8904 }, /* Actually a subset, updates to follow */ + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id); + +static struct i2c_driver wm8904_i2c_driver = { + .driver = { + .name = "wm8904", + .owner = THIS_MODULE, + }, + .probe = wm8904_i2c_probe, + .remove = __devexit_p(wm8904_i2c_remove), + .id_table = wm8904_i2c_id, +}; + +static int __init wm8904_modinit(void) +{ + int ret = 0; + ret = i2c_add_driver(&wm8904_i2c_driver); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8904 I2C driver: %d\n", + ret); + } + return ret; +} +module_init(wm8904_modinit); + +static void __exit wm8904_exit(void) +{ + i2c_del_driver(&wm8904_i2c_driver); +} +module_exit(wm8904_exit); + +MODULE_DESCRIPTION("ASoC WM8904 driver"); +MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); +MODULE_LICENSE("GPL"); |