diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/wm8960.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/wm8960.c | 1032 |
1 files changed, 0 insertions, 1032 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wm8960.c b/ANDROID_3.4.5/sound/soc/codecs/wm8960.c deleted file mode 100644 index 840d7208..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/wm8960.c +++ /dev/null @@ -1,1032 +0,0 @@ -/* - * wm8960.c -- WM8960 ALSA SoC Audio driver - * - * Author: Liam Girdwood - * - * 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/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/wm8960.h> - -#include "wm8960.h" - -/* R25 - Power 1 */ -#define WM8960_VMID_MASK 0x180 -#define WM8960_VREF 0x40 - -/* R26 - Power 2 */ -#define WM8960_PWR2_LOUT1 0x40 -#define WM8960_PWR2_ROUT1 0x20 -#define WM8960_PWR2_OUT3 0x02 - -/* R28 - Anti-pop 1 */ -#define WM8960_POBCTRL 0x80 -#define WM8960_BUFDCOPEN 0x10 -#define WM8960_BUFIOEN 0x08 -#define WM8960_SOFT_ST 0x04 -#define WM8960_HPSTBY 0x01 - -/* R29 - Anti-pop 2 */ -#define WM8960_DISOP 0x40 -#define WM8960_DRES_MASK 0x30 - -/* - * wm8960 register cache - * We can't read the WM8960 register space when we are - * using 2 wire for device control, so we cache them instead. - */ -static const u16 wm8960_reg[WM8960_CACHEREGNUM] = { - 0x0097, 0x0097, 0x0000, 0x0000, - 0x0000, 0x0008, 0x0000, 0x000a, - 0x01c0, 0x0000, 0x00ff, 0x00ff, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x007b, 0x0100, 0x0032, - 0x0000, 0x00c3, 0x00c3, 0x01c0, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0100, 0x0100, 0x0050, 0x0050, - 0x0050, 0x0050, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0040, 0x0000, - 0x0000, 0x0050, 0x0050, 0x0000, - 0x0002, 0x0037, 0x004d, 0x0080, - 0x0008, 0x0031, 0x0026, 0x00e9, -}; - -struct wm8960_priv { - enum snd_soc_control_type control_type; - int (*set_bias_level)(struct snd_soc_codec *, - enum snd_soc_bias_level level); - struct snd_soc_dapm_widget *lout1; - struct snd_soc_dapm_widget *rout1; - struct snd_soc_dapm_widget *out3; - bool deemph; - int playback_fs; -}; - -#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0) - -/* enumerated controls */ -static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", - "Right Inverted", "Stereo Inversion"}; -static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"}; -static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"}; -static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"}; -static const char *wm8960_alcmode[] = {"ALC", "Limiter"}; - -static const struct soc_enum wm8960_enum[] = { - SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity), - SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity), - SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff), - SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff), - SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc), - SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode), -}; - -static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; - -static int wm8960_set_deemph(struct snd_soc_codec *codec) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - int val, i, best; - - /* If we're using deemphasis select the nearest available sample - * rate. - */ - if (wm8960->deemph) { - best = 1; - for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { - if (abs(deemph_settings[i] - wm8960->playback_fs) < - abs(deemph_settings[best] - wm8960->playback_fs)) - best = i; - } - - val = best << 1; - } else { - val = 0; - } - - dev_dbg(codec->dev, "Set deemphasis %d\n", val); - - return snd_soc_update_bits(codec, WM8960_DACCTL1, - 0x6, val); -} - -static int wm8960_get_deemph(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - - ucontrol->value.enumerated.item[0] = wm8960->deemph; - return 0; -} - -static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - int deemph = ucontrol->value.enumerated.item[0]; - - if (deemph > 1) - return -EINVAL; - - wm8960->deemph = deemph; - - return wm8960_set_deemph(codec); -} - -static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0); -static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1); -static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0); -static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); - -static const struct snd_kcontrol_new wm8960_snd_controls[] = { -SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL, - 0, 63, 0, adc_tlv), -SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL, - 6, 1, 0), -SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL, - 7, 1, 0), - -SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC, - 0, 255, 0, dac_tlv), - -SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1, - 0, 127, 0, out_tlv), -SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1, - 7, 1, 0), - -SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2, - 0, 127, 0, out_tlv), -SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2, - 7, 1, 0), -SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0), -SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0), - -SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), -SOC_ENUM("ADC Polarity", wm8960_enum[0]), -SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), - -SOC_ENUM("DAC Polarity", wm8960_enum[2]), -SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, - wm8960_get_deemph, wm8960_put_deemph), - -SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]), -SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]), -SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0), -SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0), - -SOC_ENUM("ALC Function", wm8960_enum[4]), -SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0), -SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1), -SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0), -SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0), -SOC_ENUM("ALC Mode", wm8960_enum[5]), -SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0), -SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0), - -SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0), -SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0), - -SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH, - 0, 127, 0), - -SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume", - WM8960_BYPASS1, 4, 7, 1, bypass_tlv), -SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume", - WM8960_LOUTMIX, 4, 7, 1, bypass_tlv), -SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume", - WM8960_BYPASS2, 4, 7, 1, bypass_tlv), -SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume", - WM8960_ROUTMIX, 4, 7, 1, bypass_tlv), -}; - -static const struct snd_kcontrol_new wm8960_lin_boost[] = { -SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0), -SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0), -SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_lin[] = { -SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_rin_boost[] = { -SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0), -SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0), -SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_rin[] = { -SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_loutput_mixer[] = { -SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0), -SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0), -SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_routput_mixer[] = { -SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0), -SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0), -SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0), -}; - -static const struct snd_kcontrol_new wm8960_mono_out[] = { -SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0), -SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0), -}; - -static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = { -SND_SOC_DAPM_INPUT("LINPUT1"), -SND_SOC_DAPM_INPUT("RINPUT1"), -SND_SOC_DAPM_INPUT("LINPUT2"), -SND_SOC_DAPM_INPUT("RINPUT2"), -SND_SOC_DAPM_INPUT("LINPUT3"), -SND_SOC_DAPM_INPUT("RINPUT3"), - -SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0), - -SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0, - wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)), -SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0, - wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)), - -SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0, - wm8960_lin, ARRAY_SIZE(wm8960_lin)), -SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0, - wm8960_rin, ARRAY_SIZE(wm8960_rin)), - -SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0), -SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0), - -SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0), -SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0), - -SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0, - &wm8960_loutput_mixer[0], - ARRAY_SIZE(wm8960_loutput_mixer)), -SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0, - &wm8960_routput_mixer[0], - ARRAY_SIZE(wm8960_routput_mixer)), - -SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0), -SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0), - -SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0), -SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0), - -SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0), -SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0), - -SND_SOC_DAPM_OUTPUT("SPK_LP"), -SND_SOC_DAPM_OUTPUT("SPK_LN"), -SND_SOC_DAPM_OUTPUT("HP_L"), -SND_SOC_DAPM_OUTPUT("HP_R"), -SND_SOC_DAPM_OUTPUT("SPK_RP"), -SND_SOC_DAPM_OUTPUT("SPK_RN"), -SND_SOC_DAPM_OUTPUT("OUT3"), -}; - -static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = { -SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0, - &wm8960_mono_out[0], - ARRAY_SIZE(wm8960_mono_out)), -}; - -/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */ -static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = { -SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0), -}; - -static const struct snd_soc_dapm_route audio_paths[] = { - { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" }, - { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" }, - { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" }, - - { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", }, - { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */ - { "Left Input Mixer", NULL, "LINPUT2" }, - { "Left Input Mixer", NULL, "LINPUT3" }, - - { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" }, - { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" }, - { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" }, - - { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", }, - { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */ - { "Right Input Mixer", NULL, "RINPUT2" }, - { "Right Input Mixer", NULL, "LINPUT3" }, - - { "Left ADC", NULL, "Left Input Mixer" }, - { "Right ADC", NULL, "Right Input Mixer" }, - - { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" }, - { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} , - { "Left Output Mixer", "PCM Playback Switch", "Left DAC" }, - - { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" }, - { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } , - { "Right Output Mixer", "PCM Playback Switch", "Right DAC" }, - - { "LOUT1 PGA", NULL, "Left Output Mixer" }, - { "ROUT1 PGA", NULL, "Right Output Mixer" }, - - { "HP_L", NULL, "LOUT1 PGA" }, - { "HP_R", NULL, "ROUT1 PGA" }, - - { "Left Speaker PGA", NULL, "Left Output Mixer" }, - { "Right Speaker PGA", NULL, "Right Output Mixer" }, - - { "Left Speaker Output", NULL, "Left Speaker PGA" }, - { "Right Speaker Output", NULL, "Right Speaker PGA" }, - - { "SPK_LN", NULL, "Left Speaker Output" }, - { "SPK_LP", NULL, "Left Speaker Output" }, - { "SPK_RN", NULL, "Right Speaker Output" }, - { "SPK_RP", NULL, "Right Speaker Output" }, -}; - -static const struct snd_soc_dapm_route audio_paths_out3[] = { - { "Mono Output Mixer", "Left Switch", "Left Output Mixer" }, - { "Mono Output Mixer", "Right Switch", "Right Output Mixer" }, - - { "OUT3", NULL, "Mono Output Mixer", } -}; - -static const struct snd_soc_dapm_route audio_paths_capless[] = { - { "HP_L", NULL, "OUT3 VMID" }, - { "HP_R", NULL, "OUT3 VMID" }, - - { "OUT3 VMID", NULL, "Left Output Mixer" }, - { "OUT3 VMID", NULL, "Right Output Mixer" }, -}; - -static int wm8960_add_widgets(struct snd_soc_codec *codec) -{ - struct wm8960_data *pdata = codec->dev->platform_data; - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - struct snd_soc_dapm_context *dapm = &codec->dapm; - struct snd_soc_dapm_widget *w; - - snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets, - ARRAY_SIZE(wm8960_dapm_widgets)); - - snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths)); - - /* In capless mode OUT3 is used to provide VMID for the - * headphone outputs, otherwise it is used as a mono mixer. - */ - if (pdata && pdata->capless) { - snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless, - ARRAY_SIZE(wm8960_dapm_widgets_capless)); - - snd_soc_dapm_add_routes(dapm, audio_paths_capless, - ARRAY_SIZE(audio_paths_capless)); - } else { - snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3, - ARRAY_SIZE(wm8960_dapm_widgets_out3)); - - snd_soc_dapm_add_routes(dapm, audio_paths_out3, - ARRAY_SIZE(audio_paths_out3)); - } - - /* We need to power up the headphone output stage out of - * sequence for capless mode. To save scanning the widget - * list each time to find the desired power state do so now - * and save the result. - */ - list_for_each_entry(w, &codec->card->widgets, list) { - if (w->dapm != &codec->dapm) - continue; - if (strcmp(w->name, "LOUT1 PGA") == 0) - wm8960->lout1 = w; - if (strcmp(w->name, "ROUT1 PGA") == 0) - wm8960->rout1 = w; - if (strcmp(w->name, "OUT3 VMID") == 0) - wm8960->out3 = w; - } - - return 0; -} - -static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai, - unsigned int fmt) -{ - struct snd_soc_codec *codec = codec_dai->codec; - u16 iface = 0; - - /* set master/slave audio interface */ - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - iface |= 0x0040; - break; - case SND_SOC_DAIFMT_CBS_CFS: - break; - default: - return -EINVAL; - } - - /* interface format */ - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - iface |= 0x0002; - break; - case SND_SOC_DAIFMT_RIGHT_J: - break; - case SND_SOC_DAIFMT_LEFT_J: - iface |= 0x0001; - break; - case SND_SOC_DAIFMT_DSP_A: - iface |= 0x0003; - break; - case SND_SOC_DAIFMT_DSP_B: - iface |= 0x0013; - break; - default: - return -EINVAL; - } - - /* clock inversion */ - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - break; - case SND_SOC_DAIFMT_IB_IF: - iface |= 0x0090; - break; - case SND_SOC_DAIFMT_IB_NF: - iface |= 0x0080; - break; - case SND_SOC_DAIFMT_NB_IF: - iface |= 0x0010; - break; - default: - return -EINVAL; - } - - /* set iface */ - snd_soc_write(codec, WM8960_IFACE1, iface); - return 0; -} - -static struct { - int rate; - unsigned int val; -} alc_rates[] = { - { 48000, 0 }, - { 44100, 0 }, - { 32000, 1 }, - { 22050, 2 }, - { 24000, 2 }, - { 16000, 3 }, - { 11250, 4 }, - { 12000, 4 }, - { 8000, 5 }, -}; - -static int wm8960_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_codec *codec = rtd->codec; - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3; - int i; - - /* bit size */ - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - break; - case SNDRV_PCM_FORMAT_S20_3LE: - iface |= 0x0004; - break; - case SNDRV_PCM_FORMAT_S24_LE: - iface |= 0x0008; - break; - } - - /* Update filters for the new rate */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - wm8960->playback_fs = params_rate(params); - wm8960_set_deemph(codec); - } else { - for (i = 0; i < ARRAY_SIZE(alc_rates); i++) - if (alc_rates[i].rate == params_rate(params)) - snd_soc_update_bits(codec, - WM8960_ADDCTL3, 0x7, - alc_rates[i].val); - } - - /* set iface */ - snd_soc_write(codec, WM8960_IFACE1, iface); - return 0; -} - -static int wm8960_mute(struct snd_soc_dai *dai, int mute) -{ - struct snd_soc_codec *codec = dai->codec; - - if (mute) - snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8); - else - snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0); - return 0; -} - -static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - switch (level) { - case SND_SOC_BIAS_ON: - break; - - case SND_SOC_BIAS_PREPARE: - /* Set VMID to 2x50k */ - snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80); - break; - - case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { - snd_soc_cache_sync(codec); - - /* Enable anti-pop features */ - snd_soc_write(codec, WM8960_APOP1, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN | WM8960_BUFIOEN); - - /* Enable & ramp VMID at 2x50k */ - snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80); - msleep(100); - - /* Enable VREF */ - snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF, - WM8960_VREF); - - /* Disable anti-pop features */ - snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN); - } - - /* Set VMID to 2x250k */ - snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100); - break; - - case SND_SOC_BIAS_OFF: - /* Enable anti-pop features */ - snd_soc_write(codec, WM8960_APOP1, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN | WM8960_BUFIOEN); - - /* Disable VMID and VREF, let them discharge */ - snd_soc_write(codec, WM8960_POWER1, 0); - msleep(600); - break; - } - - codec->dapm.bias_level = level; - - return 0; -} - -static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - int reg; - - switch (level) { - case SND_SOC_BIAS_ON: - break; - - case SND_SOC_BIAS_PREPARE: - switch (codec->dapm.bias_level) { - case SND_SOC_BIAS_STANDBY: - /* Enable anti pop mode */ - snd_soc_update_bits(codec, WM8960_APOP1, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN); - - /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ - reg = 0; - if (wm8960->lout1 && wm8960->lout1->power) - reg |= WM8960_PWR2_LOUT1; - if (wm8960->rout1 && wm8960->rout1->power) - reg |= WM8960_PWR2_ROUT1; - if (wm8960->out3 && wm8960->out3->power) - reg |= WM8960_PWR2_OUT3; - snd_soc_update_bits(codec, WM8960_POWER2, - WM8960_PWR2_LOUT1 | - WM8960_PWR2_ROUT1 | - WM8960_PWR2_OUT3, reg); - - /* Enable VMID at 2*50k */ - snd_soc_update_bits(codec, WM8960_POWER1, - WM8960_VMID_MASK, 0x80); - - /* Ramp */ - msleep(100); - - /* Enable VREF */ - snd_soc_update_bits(codec, WM8960_POWER1, - WM8960_VREF, WM8960_VREF); - - msleep(100); - break; - - case SND_SOC_BIAS_ON: - /* Enable anti-pop mode */ - snd_soc_update_bits(codec, WM8960_APOP1, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN); - - /* Disable VMID and VREF */ - snd_soc_update_bits(codec, WM8960_POWER1, - WM8960_VREF | WM8960_VMID_MASK, 0); - break; - - case SND_SOC_BIAS_OFF: - snd_soc_cache_sync(codec); - break; - default: - break; - } - break; - - case SND_SOC_BIAS_STANDBY: - switch (codec->dapm.bias_level) { - case SND_SOC_BIAS_PREPARE: - /* Disable HP discharge */ - snd_soc_update_bits(codec, WM8960_APOP2, - WM8960_DISOP | WM8960_DRES_MASK, - 0); - - /* Disable anti-pop features */ - snd_soc_update_bits(codec, WM8960_APOP1, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN, - WM8960_POBCTRL | WM8960_SOFT_ST | - WM8960_BUFDCOPEN); - break; - - default: - break; - } - break; - - case SND_SOC_BIAS_OFF: - break; - } - - codec->dapm.bias_level = level; - - return 0; -} - -/* PLL divisors */ -struct _pll_div { - u32 pre_div:1; - u32 n:4; - u32 k:24; -}; - -/* The size in bits of the pll divide multiplied by 10 - * to allow rounding later */ -#define FIXED_PLL_SIZE ((1 << 24) * 10) - -static int pll_factors(unsigned int source, unsigned int target, - struct _pll_div *pll_div) -{ - unsigned long long Kpart; - unsigned int K, Ndiv, Nmod; - - pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); - - /* Scale up target to PLL operating frequency */ - target *= 4; - - Ndiv = target / source; - if (Ndiv < 6) { - source >>= 1; - pll_div->pre_div = 1; - Ndiv = target / source; - } else - pll_div->pre_div = 0; - - if ((Ndiv < 6) || (Ndiv > 12)) { - pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); - return -EINVAL; - } - - pll_div->n = Ndiv; - Nmod = target % source; - Kpart = FIXED_PLL_SIZE * (long long)Nmod; - - do_div(Kpart, source); - - K = Kpart & 0xFFFFFFFF; - - /* Check if we need to round */ - if ((K % 10) >= 5) - K += 5; - - /* Move down to proper range now rounding is done */ - K /= 10; - - pll_div->k = K; - - pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", - pll_div->n, pll_div->k, pll_div->pre_div); - - return 0; -} - -static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, - int source, unsigned int freq_in, unsigned int freq_out) -{ - struct snd_soc_codec *codec = codec_dai->codec; - u16 reg; - static struct _pll_div pll_div; - int ret; - - if (freq_in && freq_out) { - ret = pll_factors(freq_in, freq_out, &pll_div); - if (ret != 0) - return ret; - } - - /* Disable the PLL: even if we are changing the frequency the - * PLL needs to be disabled while we do so. */ - snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0); - snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0); - - if (!freq_in || !freq_out) - return 0; - - reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f; - reg |= pll_div.pre_div << 4; - reg |= pll_div.n; - - if (pll_div.k) { - reg |= 0x20; - - snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f); - snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff); - snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff); - } - snd_soc_write(codec, WM8960_PLL1, reg); - - /* Turn it on */ - snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1); - msleep(250); - snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1); - - return 0; -} - -static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, - int div_id, int div) -{ - struct snd_soc_codec *codec = codec_dai->codec; - u16 reg; - - switch (div_id) { - case WM8960_SYSCLKDIV: - reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9; - snd_soc_write(codec, WM8960_CLOCK1, reg | div); - break; - case WM8960_DACDIV: - reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7; - snd_soc_write(codec, WM8960_CLOCK1, reg | div); - break; - case WM8960_OPCLKDIV: - reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f; - snd_soc_write(codec, WM8960_PLL1, reg | div); - break; - case WM8960_DCLKDIV: - reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f; - snd_soc_write(codec, WM8960_CLOCK2, reg | div); - break; - case WM8960_TOCLKSEL: - reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd; - snd_soc_write(codec, WM8960_ADDCTL1, reg | div); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int wm8960_set_bias_level(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - - return wm8960->set_bias_level(codec, level); -} - -#define WM8960_RATES SNDRV_PCM_RATE_8000_48000 - -#define WM8960_FORMATS \ - (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE) - -static const struct snd_soc_dai_ops wm8960_dai_ops = { - .hw_params = wm8960_hw_params, - .digital_mute = wm8960_mute, - .set_fmt = wm8960_set_dai_fmt, - .set_clkdiv = wm8960_set_dai_clkdiv, - .set_pll = wm8960_set_dai_pll, -}; - -static struct snd_soc_dai_driver wm8960_dai = { - .name = "wm8960-hifi", - .playback = { - .stream_name = "Playback", - .channels_min = 1, - .channels_max = 2, - .rates = WM8960_RATES, - .formats = WM8960_FORMATS,}, - .capture = { - .stream_name = "Capture", - .channels_min = 1, - .channels_max = 2, - .rates = WM8960_RATES, - .formats = WM8960_FORMATS,}, - .ops = &wm8960_dai_ops, - .symmetric_rates = 1, -}; - -static int wm8960_suspend(struct snd_soc_codec *codec) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - - wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); - return 0; -} - -static int wm8960_resume(struct snd_soc_codec *codec) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - - wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); - return 0; -} - -static int wm8960_probe(struct snd_soc_codec *codec) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - struct wm8960_data *pdata = dev_get_platdata(codec->dev); - int ret; - - wm8960->set_bias_level = wm8960_set_bias_level_out3; - - if (!pdata) { - dev_warn(codec->dev, "No platform data supplied\n"); - } else { - if (pdata->dres > WM8960_DRES_MAX) { - dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres); - pdata->dres = 0; - } - - if (pdata->capless) - wm8960->set_bias_level = wm8960_set_bias_level_capless; - } - - ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8960->control_type); - if (ret < 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - return ret; - } - - ret = wm8960_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset\n"); - return ret; - } - - wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - /* Latch the update bits */ - snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100); - - snd_soc_add_codec_controls(codec, wm8960_snd_controls, - ARRAY_SIZE(wm8960_snd_controls)); - wm8960_add_widgets(codec); - - return 0; -} - -/* power down chip */ -static int wm8960_remove(struct snd_soc_codec *codec) -{ - struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); - - wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); - return 0; -} - -static struct snd_soc_codec_driver soc_codec_dev_wm8960 = { - .probe = wm8960_probe, - .remove = wm8960_remove, - .suspend = wm8960_suspend, - .resume = wm8960_resume, - .set_bias_level = wm8960_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8960_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8960_reg, -}; - -static __devinit int wm8960_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct wm8960_priv *wm8960; - int ret; - - wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), - GFP_KERNEL); - if (wm8960 == NULL) - return -ENOMEM; - - i2c_set_clientdata(i2c, wm8960); - wm8960->control_type = SND_SOC_I2C; - - ret = snd_soc_register_codec(&i2c->dev, - &soc_codec_dev_wm8960, &wm8960_dai, 1); - - return ret; -} - -static __devexit int wm8960_i2c_remove(struct i2c_client *client) -{ - snd_soc_unregister_codec(&client->dev); - return 0; -} - -static const struct i2c_device_id wm8960_i2c_id[] = { - { "wm8960", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); - -static struct i2c_driver wm8960_i2c_driver = { - .driver = { - .name = "wm8960", - .owner = THIS_MODULE, - }, - .probe = wm8960_i2c_probe, - .remove = __devexit_p(wm8960_i2c_remove), - .id_table = wm8960_i2c_id, -}; - -static int __init wm8960_modinit(void) -{ - int ret = 0; - ret = i2c_add_driver(&wm8960_i2c_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n", - ret); - } - return ret; -} -module_init(wm8960_modinit); - -static void __exit wm8960_exit(void) -{ - i2c_del_driver(&wm8960_i2c_driver); -} -module_exit(wm8960_exit); - -MODULE_DESCRIPTION("ASoC WM8960 driver"); -MODULE_AUTHOR("Liam Girdwood"); -MODULE_LICENSE("GPL"); |