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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 struct reg_default wm8960_reg_defaults[] = { { 0x0, 0x00a7 }, { 0x1, 0x00a7 }, { 0x2, 0x0000 }, { 0x3, 0x0000 }, { 0x4, 0x0000 }, { 0x5, 0x0008 }, { 0x6, 0x0000 }, { 0x7, 0x000a }, { 0x8, 0x01c0 }, { 0x9, 0x0000 }, { 0xa, 0x00ff }, { 0xb, 0x00ff }, { 0x10, 0x0000 }, { 0x11, 0x007b }, { 0x12, 0x0100 }, { 0x13, 0x0032 }, { 0x14, 0x0000 }, { 0x15, 0x00c3 }, { 0x16, 0x00c3 }, { 0x17, 0x01c0 }, { 0x18, 0x0000 }, { 0x19, 0x0000 }, { 0x1a, 0x0000 }, { 0x1b, 0x0000 }, { 0x1c, 0x0000 }, { 0x1d, 0x0000 }, { 0x20, 0x0100 }, { 0x21, 0x0100 }, { 0x22, 0x0050 }, { 0x25, 0x0050 }, { 0x26, 0x0000 }, { 0x27, 0x0000 }, { 0x28, 0x0000 }, { 0x29, 0x0000 }, { 0x2a, 0x0040 }, { 0x2b, 0x0000 }, { 0x2c, 0x0000 }, { 0x2d, 0x0050 }, { 0x2e, 0x0050 }, { 0x2f, 0x0000 }, { 0x30, 0x0002 }, { 0x31, 0x0037 }, { 0x33, 0x0080 }, { 0x34, 0x0008 }, { 0x35, 0x0031 }, { 0x36, 0x0026 }, { 0x37, 0x00e9 }, }; static bool wm8960_volatile(struct device *dev, unsigned int reg) { switch (reg) { case WM8960_RESET: return true; default: return false; } } struct wm8960_priv { struct regmap *regmap; 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.integer.value[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.integer.value[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 DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 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_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume", WM8960_INBMIX1, 4, 7, 0, boost_tlv), SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume", WM8960_INBMIX1, 1, 7, 0, boost_tlv), SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume", WM8960_INBMIX2, 4, 7, 0, boost_tlv), SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume", WM8960_INBMIX2, 1, 7, 0, boost_tlv), 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_POWER1, 3, 0), SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 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 }, { 11025, 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_codec *codec = dai->codec; struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3; snd_pcm_format_t format = params_format(params); int i; /* bit size */ switch (format) { case SNDRV_PCM_FORMAT_S16_LE: case SNDRV_PCM_FORMAT_S16_BE: break; case SNDRV_PCM_FORMAT_S20_3LE: case SNDRV_PCM_FORMAT_S20_3BE: iface |= 0x0004; break; case SNDRV_PCM_FORMAT_S24_LE: case SNDRV_PCM_FORMAT_S24_BE: iface |= 0x0008; break; default: dev_err(codec->dev, "unsupported format %i\n", format); return -EINVAL; } /* 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) { struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 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) { regcache_sync(wm8960->regmap); /* 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: regcache_sync(wm8960->regmap); 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 >> 16) & 0xff); snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff); snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff); } 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->capless) wm8960->set_bias_level = wm8960_set_bias_level_capless; } ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP); 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, }; static const struct regmap_config wm8960_regmap = { .reg_bits = 7, .val_bits = 9, .max_register = WM8960_PLL4, .reg_defaults = wm8960_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), .cache_type = REGCACHE_RBTREE, .volatile_reg = wm8960_volatile, }; static int wm8960_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); struct wm8960_priv *wm8960; int ret; wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), GFP_KERNEL); if (wm8960 == NULL) return -ENOMEM; wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); if (IS_ERR(wm8960->regmap)) return PTR_ERR(wm8960->regmap); if (pdata && pdata->shared_lrclk) { ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 0x4, 0x4); if (ret != 0) { dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", ret); return ret; } } i2c_set_clientdata(i2c, wm8960); ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8960, &wm8960_dai, 1); return ret; } static 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 = wm8960_i2c_remove, .id_table = wm8960_i2c_id, }; module_i2c_driver(wm8960_i2c_driver); MODULE_DESCRIPTION("ASoC WM8960 driver"); MODULE_AUTHOR("Liam Girdwood"); MODULE_LICENSE("GPL"); |