/* * wm8711.c -- WM8711 ALSA SoC Audio driver * * Copyright 2006 Wolfson Microelectronics * * Author: Mike Arthur * * Based on wm8731.c by Richard Purdie * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wm8711.h" /* codec private data */ struct wm8711_priv { struct regmap *regmap; unsigned int sysclk; }; /* * wm8711 register cache * We can't read the WM8711 register space when we are * using 2 wire for device control, so we cache them instead. * There is no point in caching the reset register */ static const struct reg_default wm8711_reg_defaults[] = { { 0, 0x0079 }, { 1, 0x0079 }, { 2, 0x000a }, { 3, 0x0008 }, { 4, 0x009f }, { 5, 0x000a }, { 6, 0x0000 }, { 7, 0x0000 }, }; static bool wm8711_volatile(struct device *dev, unsigned int reg) { switch (reg) { case WM8711_RESET: return true; default: return false; } } #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); static const struct snd_kcontrol_new wm8711_snd_controls[] = { SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, 0, 127, 0, out_tlv), SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, 7, 1, 0), }; /* Output Mixer */ static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), }; static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, &wm8711_output_mixer_controls[0], ARRAY_SIZE(wm8711_output_mixer_controls)), SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), SND_SOC_DAPM_OUTPUT("LOUT"), SND_SOC_DAPM_OUTPUT("LHPOUT"), SND_SOC_DAPM_OUTPUT("ROUT"), SND_SOC_DAPM_OUTPUT("RHPOUT"), }; static const struct snd_soc_dapm_route wm8711_intercon[] = { /* output mixer */ {"Output Mixer", "Line Bypass Switch", "Line Input"}, {"Output Mixer", "HiFi Playback Switch", "DAC"}, /* outputs */ {"RHPOUT", NULL, "Output Mixer"}, {"ROUT", NULL, "Output Mixer"}, {"LHPOUT", NULL, "Output Mixer"}, {"LOUT", NULL, "Output Mixer"}, }; struct _coeff_div { u32 mclk; u32 rate; u16 fs; u8 sr:4; u8 bosr:1; u8 usb:1; }; /* codec mclk clock divider coefficients */ static const struct _coeff_div coeff_div[] = { /* 48k */ {12288000, 48000, 256, 0x0, 0x0, 0x0}, {18432000, 48000, 384, 0x0, 0x1, 0x0}, {12000000, 48000, 250, 0x0, 0x0, 0x1}, /* 32k */ {12288000, 32000, 384, 0x6, 0x0, 0x0}, {18432000, 32000, 576, 0x6, 0x1, 0x0}, {12000000, 32000, 375, 0x6, 0x0, 0x1}, /* 8k */ {12288000, 8000, 1536, 0x3, 0x0, 0x0}, {18432000, 8000, 2304, 0x3, 0x1, 0x0}, {11289600, 8000, 1408, 0xb, 0x0, 0x0}, {16934400, 8000, 2112, 0xb, 0x1, 0x0}, {12000000, 8000, 1500, 0x3, 0x0, 0x1}, /* 96k */ {12288000, 96000, 128, 0x7, 0x0, 0x0}, {18432000, 96000, 192, 0x7, 0x1, 0x0}, {12000000, 96000, 125, 0x7, 0x0, 0x1}, /* 44.1k */ {11289600, 44100, 256, 0x8, 0x0, 0x0}, {16934400, 44100, 384, 0x8, 0x1, 0x0}, {12000000, 44100, 272, 0x8, 0x1, 0x1}, /* 88.2k */ {11289600, 88200, 128, 0xf, 0x0, 0x0}, {16934400, 88200, 192, 0xf, 0x1, 0x0}, {12000000, 88200, 136, 0xf, 0x1, 0x1}, }; static inline int get_coeff(int mclk, int rate) { int i; for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) return i; } return 0; } static int wm8711_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 wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfff3; int i = get_coeff(wm8711->sysclk, params_rate(params)); u16 srate = (coeff_div[i].sr << 2) | (coeff_div[i].bosr << 1) | coeff_div[i].usb; snd_soc_write(codec, WM8711_SRATE, srate); /* bit size */ switch (params_width(params)) { case 16: break; case 20: iface |= 0x0004; break; case 24: iface |= 0x0008; break; } snd_soc_write(codec, WM8711_IFACE, iface); return 0; } static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; /* set active */ snd_soc_write(codec, WM8711_ACTIVE, 0x0001); return 0; } static void wm8711_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; /* deactivate */ if (!snd_soc_codec_is_active(codec)) { udelay(50); snd_soc_write(codec, WM8711_ACTIVE, 0x0); } } static int wm8711_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; if (mute) snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); else snd_soc_write(codec, WM8711_APDIGI, mute_reg); return 0; } static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); switch (freq) { case 11289600: case 12000000: case 12288000: case 16934400: case 18432000: wm8711->sysclk = freq; return 0; } return -EINVAL; } static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0x000c; /* 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, WM8711_IFACE, iface); return 0; } static int wm8711_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; switch (level) { case SND_SOC_BIAS_ON: snd_soc_write(codec, WM8711_PWR, reg); break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) regcache_sync(wm8711->regmap); snd_soc_write(codec, WM8711_PWR, reg | 0x0040); break; case SND_SOC_BIAS_OFF: snd_soc_write(codec, WM8711_ACTIVE, 0x0); snd_soc_write(codec, WM8711_PWR, 0xffff); break; } return 0; } #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) static const struct snd_soc_dai_ops wm8711_ops = { .prepare = wm8711_pcm_prepare, .hw_params = wm8711_hw_params, .shutdown = wm8711_shutdown, .digital_mute = wm8711_mute, .set_sysclk = wm8711_set_dai_sysclk, .set_fmt = wm8711_set_dai_fmt, }; static struct snd_soc_dai_driver wm8711_dai = { .name = "wm8711-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = WM8711_RATES, .formats = WM8711_FORMATS, }, .ops = &wm8711_ops, }; static int wm8711_probe(struct snd_soc_codec *codec) { int ret; ret = wm8711_reset(codec); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset\n"); return ret; } /* Latch the update bits */ snd_soc_update_bits(codec, WM8711_LOUT1V, 0x0100, 0x0100); snd_soc_update_bits(codec, WM8711_ROUT1V, 0x0100, 0x0100); return ret; } static const struct snd_soc_codec_driver soc_codec_dev_wm8711 = { .probe = wm8711_probe, .set_bias_level = wm8711_set_bias_level, .suspend_bias_off = true, .component_driver = { .controls = wm8711_snd_controls, .num_controls = ARRAY_SIZE(wm8711_snd_controls), .dapm_widgets = wm8711_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8711_dapm_widgets), .dapm_routes = wm8711_intercon, .num_dapm_routes = ARRAY_SIZE(wm8711_intercon), }, }; static const struct of_device_id wm8711_of_match[] = { { .compatible = "wlf,wm8711", }, { } }; MODULE_DEVICE_TABLE(of, wm8711_of_match); static const struct regmap_config wm8711_regmap = { .reg_bits = 7, .val_bits = 9, .max_register = WM8711_RESET, .reg_defaults = wm8711_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm8711_reg_defaults), .cache_type = REGCACHE_RBTREE, .volatile_reg = wm8711_volatile, }; #if defined(CONFIG_SPI_MASTER) static int wm8711_spi_probe(struct spi_device *spi) { struct wm8711_priv *wm8711; int ret; wm8711 = devm_kzalloc(&spi->dev, sizeof(struct wm8711_priv), GFP_KERNEL); if (wm8711 == NULL) return -ENOMEM; wm8711->regmap = devm_regmap_init_spi(spi, &wm8711_regmap); if (IS_ERR(wm8711->regmap)) return PTR_ERR(wm8711->regmap); spi_set_drvdata(spi, wm8711); ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8711, &wm8711_dai, 1); return ret; } static int wm8711_spi_remove(struct spi_device *spi) { snd_soc_unregister_codec(&spi->dev); return 0; } static struct spi_driver wm8711_spi_driver = { .driver = { .name = "wm8711", .of_match_table = wm8711_of_match, }, .probe = wm8711_spi_probe, .remove = wm8711_spi_remove, }; #endif /* CONFIG_SPI_MASTER */ #if IS_ENABLED(CONFIG_I2C) static int wm8711_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct wm8711_priv *wm8711; int ret; wm8711 = devm_kzalloc(&client->dev, sizeof(struct wm8711_priv), GFP_KERNEL); if (wm8711 == NULL) return -ENOMEM; wm8711->regmap = devm_regmap_init_i2c(client, &wm8711_regmap); if (IS_ERR(wm8711->regmap)) return PTR_ERR(wm8711->regmap); i2c_set_clientdata(client, wm8711); ret = snd_soc_register_codec(&client->dev, &soc_codec_dev_wm8711, &wm8711_dai, 1); return ret; } static int wm8711_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static const struct i2c_device_id wm8711_i2c_id[] = { { "wm8711", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); static struct i2c_driver wm8711_i2c_driver = { .driver = { .name = "wm8711", .of_match_table = wm8711_of_match, }, .probe = wm8711_i2c_probe, .remove = wm8711_i2c_remove, .id_table = wm8711_i2c_id, }; #endif static int __init wm8711_modinit(void) { int ret; #if IS_ENABLED(CONFIG_I2C) ret = i2c_add_driver(&wm8711_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", ret); } #endif #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&wm8711_spi_driver); if (ret != 0) { printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", ret); } #endif return 0; } module_init(wm8711_modinit); static void __exit wm8711_exit(void) { #if IS_ENABLED(CONFIG_I2C) i2c_del_driver(&wm8711_i2c_driver); #endif #if defined(CONFIG_SPI_MASTER) spi_unregister_driver(&wm8711_spi_driver); #endif } module_exit(wm8711_exit); MODULE_DESCRIPTION("ASoC WM8711 driver"); MODULE_AUTHOR("Mike Arthur"); MODULE_LICENSE("GPL"); amp;id=bb4005bae3dab0dd21b239b1da193053151c07ba'>iw_cm.h8793logplain -rw-r--r--iw_portmap.h7688logplain -rw-r--r--mr_pool.h954logplain -rw-r--r--opa_port_info.h15063logplain -rw-r--r--opa_smi.h4417logplain