/* * neo1973_gta02_wm8753.c -- SoC audio for Openmoko Freerunner(GTA02) * * Copyright 2007 Openmoko Inc * Author: Graeme Gregory * Copyright 2007 Wolfson Microelectronics PLC. * Author: Graeme Gregory * Copyright 2009 Wolfson Microelectronics * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../codecs/wm8753.h" #include "s3c24xx-pcm.h" #include "s3c24xx-i2s.h" #include "lm4857.h" #include #ifdef CONFIG_MACH_NEO1973_GTA01 static struct lm4857 { struct i2c_client *i2c; uint8_t regs[4]; uint8_t state; } lm4857 = { .regs = {0x00, 0x40, 0x80, 0xC0}, }; static void lm4857_write_regs(void) { if (!lm4857.i2c) return; if (i2c_master_send(lm4857.i2c, lm4857.regs, 4) != 4) printk(KERN_ERR "lm4857: i2c write failed\n"); } static int lm4857_get_reg(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int reg = mc->reg; int shift = mc->shift; int mask = mc->max; ucontrol->value.integer.value[0] = (lm4857.regs[reg] >> shift) & mask; return 0; } static int lm4857_set_reg(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int reg = mc->reg; int shift = mc->shift; int mask = mc->max; if (((lm4857.regs[reg] >> shift) & mask) == ucontrol->value.integer.value[0]) return 0; lm4857.regs[reg] &= ~(mask << shift); lm4857.regs[reg] |= ucontrol->value.integer.value[0] << shift; lm4857_write_regs(); return 1; } static int lm4857_get_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { uint8_t value = lm4857.regs[LM4857_CTRL] & 0x0F; if (value) value -= 5; ucontrol->value.integer.value[0] = value; return 0; } static int lm4857_set_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { uint8_t value = ucontrol->value.integer.value[0]; if (value) value += 5; if ((lm4857.regs[LM4857_CTRL] & 0x0F) == value) return 0; lm4857.regs[LM4857_CTRL] &= 0xF0; lm4857.regs[LM4857_CTRL] |= value; lm4857_write_regs(); return 1; } static int lm4857_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { if (lm4857.i2c) return -EBUSY; lm4857.i2c = client; lm4857_write_regs(); return 0; } static int lm4857_i2c_remove(struct i2c_client *client) { lm4857.i2c = NULL; return 0; } static int lm4857_suspend(struct i2c_client *dev, pm_message_t state) { lm4857.state = lm4857.regs[LM4857_CTRL] & 0xf; if (lm4857.state) { lm4857.regs[LM4857_CTRL] &= 0xf0; lm4857_write_regs(); } return 0; } static int lm4857_resume(struct i2c_client *dev) { if (lm4857.state) { lm4857.regs[LM4857_CTRL] |= (lm4857.state & 0x0f); lm4857_write_regs(); } return 0; } static void lm4857_shutdown(struct i2c_client *dev) { lm4857.regs[LM4857_CTRL] &= 0xf0; lm4857_write_regs(); } static const struct i2c_device_id lm4857_i2c_id[] = { { "neo1973_lm4857", 0 }, { } }; static struct i2c_driver lm4857_i2c_driver = { .driver = { .name = "LM4857 I2C Amp", .owner = THIS_MODULE, }, .suspend = lm4857_suspend, .resume = lm4857_resume, .shutdown = lm4857_shutdown, .probe = lm4857_i2c_probe, .remove = lm4857_i2c_remove, .id_table = lm4857_i2c_id, }; #endif static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; unsigned int pll_out = 0, bclk = 0; int ret = 0; unsigned long iis_clkrate; iis_clkrate = s3c24xx_i2s_get_clockrate(); switch (params_rate(params)) { case 8000: case 16000: pll_out = 12288000; break; case 48000: bclk = WM8753_BCLK_DIV_4; pll_out = 12288000; break; case 96000: bclk = WM8753_BCLK_DIV_2; pll_out = 12288000; break; case 11025: bclk = WM8753_BCLK_DIV_16; pll_out = 11289600; break; case 22050: bclk = WM8753_BCLK_DIV_8; pll_out = 11289600; break; case 44100: bclk = WM8753_BCLK_DIV_4; pll_out = 11289600; break; case 88200: bclk = WM8753_BCLK_DIV_2; pll_out = 11289600; break; } /* set codec DAI configuration */ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); if (ret < 0) return ret; /* set cpu DAI configuration */ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); if (ret < 0) return ret; /* set the codec system clock for DAC and ADC */ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out, SND_SOC_CLOCK_IN); if (ret < 0) return ret; /* set MCLK division for sample rate */ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, S3C2410_IISMOD_32FS); if (ret < 0) return ret; /* set codec BCLK division for sample rate */ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk); if (ret < 0) return ret; /* set prescaler division for sample rate */ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER, S3C24XX_PRESCALE(4, 4)); if (ret < 0) return ret; /* codec PLL input is PCLK/4 */ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, iis_clkrate / 4, pll_out); if (ret < 0) return ret; return 0; } static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; /* disable the PLL */ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0); } /* * Neo1973 WM8753 HiFi DAI opserations. */ static struct snd_soc_ops neo1973_hifi_ops = { .hw_params = neo1973_hifi_hw_params, .hw_free = neo1973_hifi_hw_free, }; static int neo1973_voice_hw_params( struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; unsigned int pcmdiv = 0; int ret = 0; unsigned long iis_clkrate; iis_clkrate = s3c24xx_i2s_get_clockrate(); if (params_rate(params) != 8000) return -EINVAL; if (params_channels(params) != 1) return -EINVAL; pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */ /* todo: gg check mode (DSP_B) against CSR datasheet */ /* set codec DAI configuration */ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (ret < 0) return ret; /* set the codec system clock for DAC and ADC */ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000, SND_SOC_CLOCK_IN); if (ret < 0) return ret; /* set codec PCM division for sample rate */ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv); if (ret < 0) return ret; /* configue and enable PLL for 12.288MHz output */ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, iis_clkrate / 4, 12288000); if (ret < 0) return ret; return 0; } static int neo1973_voice_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; /* disable the PLL */ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0); } static struct snd_soc_ops neo1973_voice_ops = { .hw_params = neo1973_voice_hw_params, .hw_free = neo1973_voice_hw_free, }; /* Shared routes and controls */ static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { SND_SOC_DAPM_LINE("GSM Line Out", NULL), SND_SOC_DAPM_LINE("GSM Line In", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Handset Mic", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* Connections to the lm4853 amp */ {"Stereo Out", NULL, "LOUT1"}, {"Stereo Out", NULL, "ROUT1"}, /* Connections to the GSM Module */ {"GSM Line Out", NULL, "MONO1"}, {"GSM Line Out", NULL, "MONO2"}, {"RXP", NULL, "GSM Line In"}, {"RXN", NULL, "GSM Line In"}, /* Connections to Headset */ {"MIC1", NULL, "Mic Bias"}, {"Mic Bias", NULL, "Headset Mic"}, /* Call Mic */ {"MIC2", NULL, "Mic Bias"}, {"MIC2N", NULL, "Mic Bias"}, {"Mic Bias", NULL, "Handset Mic"}, /* Connect the ALC pins */ {"ACIN", NULL, "ACOP"}, }; static const struct snd_kcontrol_new wm8753_neo1973_controls[] = { SOC_DAPM_PIN_SWITCH("Stereo Out"), SOC_DAPM_PIN_SWITCH("GSM Line Out"), SOC_DAPM_PIN_SWITCH("GSM Line In"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Handset Mic"), }; /* GTA01 specific controlls */ #ifdef CONFIG_MACH_NEO1973_GTA01 static const char *lm4857_mode[] = { "Off", "Call Speaker", "Stereo Speakers", "Stereo Speakers + Headphones", "Headphones" }; static const struct soc_enum lm4857_mode_enum[] = { SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lm4857_mode), lm4857_mode), }; static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0); static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0); static const struct snd_kcontrol_new wm8753_neo1973_gta01_controls[] = { SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0, lm4857_get_reg, lm4857_set_reg, stereo_tlv), SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0, lm4857_get_reg, lm4857_set_reg, stereo_tlv), SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0, lm4857_get_reg, lm4857_set_reg, mono_tlv), SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0], lm4857_get_mode, lm4857_set_mode), SOC_SINGLE_EXT("Amp Spk 3D Playback Switch", LM4857_LVOL, 5, 1, 0, lm4857_get_reg, lm4857_set_reg), SOC_SINGLE_EXT("Amp HP 3d Playback Switch", LM4857_RVOL, 5, 1, 0, lm4857_get_reg, lm4857_set_reg), SOC_SINGLE_EXT("Amp Fast Wakeup Playback Switch", LM4857_CTRL, 5, 1, 0, lm4857_get_reg, lm4857_set_reg), SOC_SINGLE_EXT("Amp Earpiece 6dB Playback Switch", LM4857_CTRL, 4, 1, 0, lm4857_get_reg, lm4857_set_reg), }; static const struct snd_soc_dapm_widget wm8753_dapm_widgets_gta01[] = { SND_SOC_DAPM_SPK("Stereo Out", NULL), }; #else static const struct snd_kcontrol_new wm8753_neo1973_gta01_controls[] = {}; static const struct snd_soc_dapm_widget wm8753_dapm_widgets_gta01[] = {}; #endif /* GTA02 specific routes and controlls */ #ifdef CONFIG_MACH_NEO1973_GTA02 static int lm4853_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int val = ucontrol->value.integer.value[0]; gpio_set_value(GTA02_GPIO_HP_IN, !val); return 0; } static int lm4853_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = !gpio_get_value(GTA02_GPIO_HP_IN); return 0; } static int lm4853_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { gpio_set_value(GTA02_GPIO_AMP_SHUT, !SND_SOC_DAPM_EVENT_ON(event)); return 0; } static const struct snd_soc_dapm_route audio_map_gta02[] = { /* Call Speaker */ {"Handset Spk", NULL, "LOUT2"}, {"Handset Spk", NULL, "ROUT2"}, }; static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = { SOC_DAPM_PIN_SWITCH("Handset Spk"), SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0, lm4853_get_spk, lm4853_set_spk), }; static const struct snd_soc_dapm_widget wm8753_dapm_widgets_gta02[] = { SND_SOC_DAPM_SPK("Stereo Out", lm4853_event), SND_SOC_DAPM_SPK("Handset Spk", NULL), }; #else static const struct snd_soc_dapm_route audio_map_gta02[]= {}; static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {}; static const struct snd_soc_dapm_widget wm8753_dapm_widgets_gta02[] = {}; #endif static int neo1973_wm8753_init(struct snd_soc_codec *codec) { int err; const struct snd_soc_dapm_widget *machine_widgets; size_t num_machine_widgets; const struct snd_kcontrol_new *machine_controls; size_t num_machine_controls; if (machine_is_neo1973_gta01()) { machine_widgets = wm8753_dapm_widgets_gta01; num_machine_widgets = ARRAY_SIZE(wm8753_dapm_widgets_gta01); machine_controls = wm8753_neo1973_gta01_controls; num_machine_controls = ARRAY_SIZE(wm8753_neo1973_gta01_controls); } else { machine_widgets = wm8753_dapm_widgets_gta02; num_machine_widgets = ARRAY_SIZE(wm8753_dapm_widgets_gta02); machine_controls = wm8753_neo1973_gta02_controls; num_machine_controls = ARRAY_SIZE(wm8753_neo1973_gta02_controls); } /* set up NC codec pins */ if (!machine_is_neo1973_gta02()) { snd_soc_dapm_nc_pin(codec, "LOUT2"); snd_soc_dapm_nc_pin(codec, "ROUT2"); } snd_soc_dapm_nc_pin(codec, "OUT3"); snd_soc_dapm_nc_pin(codec, "OUT4"); snd_soc_dapm_nc_pin(codec, "LINE1"); snd_soc_dapm_nc_pin(codec, "LINE2"); /* Add neo1973 specific widgets */ snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets, ARRAY_SIZE(wm8753_dapm_widgets)); snd_soc_dapm_new_controls(codec, machine_widgets, num_machine_widgets); /* add neo1973 specific controls */ err = snd_soc_add_controls(codec, wm8753_neo1973_controls, ARRAY_SIZE(wm8753_neo1973_controls)); if (err < 0) return err; err = snd_soc_add_controls(codec, machine_controls, num_machine_controls); if (err < 0) return err; /* set up neo1973 gta02 specific audio path audio_map */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); if (machine_is_neo1973_gta02()) { snd_soc_dapm_add_routes(codec, audio_map_gta02, ARRAY_SIZE(audio_map_gta02)); } /* set endpoints to default off mode */ snd_soc_dapm_disable_pin(codec, "Stereo Out"); snd_soc_dapm_disable_pin(codec, "GSM Line Out"); snd_soc_dapm_disable_pin(codec, "GSM Line In"); snd_soc_dapm_disable_pin(codec, "Headset Mic"); snd_soc_dapm_disable_pin(codec, "Handset Mic"); if (machine_is_neo1973_gta02()) snd_soc_dapm_disable_pin(codec, "Handset Spk"); snd_soc_dapm_sync(codec); return 0; } /* * BT Codec DAI */ static struct snd_soc_dai bt_dai = { .name = "Bluetooth", .id = 0, .playback = { .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE,}, .capture = { .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE,}, }; static struct snd_soc_dai_link neo1973_dai[] = { { /* Hifi Playback - for similatious use with voice below */ .name = "WM8753", .stream_name = "WM8753 HiFi", .cpu_dai = &s3c24xx_i2s_dai, .codec_dai = &wm8753_dai[WM8753_DAI_HIFI], .init = neo1973_wm8753_init, .ops = &neo1973_hifi_ops, }, { /* Voice via BT */ .name = "Bluetooth", .stream_name = "Voice", .cpu_dai = &bt_dai, .codec_dai = &wm8753_dai[WM8753_DAI_VOICE], .ops = &neo1973_voice_ops, }, }; static struct snd_soc_card neo1973 = { .name = "neo1973", .platform = &s3c24xx_soc_platform, .dai_link = neo1973_dai, .num_links = ARRAY_SIZE(neo1973_dai), }; static struct snd_soc_device neo1973_snd_devdata = { .card = &neo1973, .codec_dev = &soc_codec_dev_wm8753, }; static struct platform_device *neo1973_snd_device; #ifdef CONFIG_MACH_NEO1973_GTA01 static int __init neo1973_gta01_init(void) { return i2c_add_driver(&lm4857_i2c_driver); } #else static inline int neo1973_gta01_init(void) { return 0; } #endif #ifdef CONFIG_MACH_NEO1973_GTA02 static int __init neo1973_gta02_init(void) { int ret; /* Initialise GPIOs used by amp */ ret = gpio_request(GTA02_GPIO_HP_IN, "GTA02_HP_IN"); if (ret) { pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_HP_IN); goto err; } ret = gpio_direction_output(GTA02_GPIO_HP_IN, 1); if (ret) { pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_HP_IN); goto err_free_gpio_hp_in; } ret = gpio_request(GTA02_GPIO_AMP_SHUT, "GTA02_AMP_SHUT"); if (ret) { pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_AMP_SHUT); goto err_free_gpio_hp_in; } ret = gpio_direction_output(GTA02_GPIO_AMP_SHUT, 1); if (ret) { pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_AMP_SHUT); goto err_free_gpio_amp_shut; } return 0; err_free_gpio_amp_shut: gpio_free(GTA02_GPIO_AMP_SHUT); err_free_gpio_hp_in: gpio_free(GTA02_GPIO_HP_IN); err: return ret; } #else static inline int neo1973_gta02_init(void) { return 0; } #endif static int __init neo1973_init(void) { int ret; if (!machine_is_neo1973_gta01() && !machine_is_neo1973_gta02()) { return -ENODEV; } if (machine_is_neo1973_gta02()) { neo1973_snd_devdata.card->name = "neo1973gta02"; } /* register bluetooth DAI here */ ret = snd_soc_register_dai(&bt_dai); if (ret) return ret; neo1973_snd_device = platform_device_alloc("soc-audio", -1); if (!neo1973_snd_device) return -ENOMEM; platform_set_drvdata(neo1973_snd_device, &neo1973_snd_devdata); neo1973_snd_devdata.dev = &neo1973_snd_device->dev; ret = platform_device_add(neo1973_snd_device); if (ret) { platform_device_put(neo1973_snd_device); return ret; } if (machine_is_neo1973_gta01()) ret = neo1973_gta01_init(); else ret = neo1973_gta02_init(); if (ret) goto err_unregister_device; return 0; err_unregister_device: platform_device_unregister(neo1973_snd_device); return ret; } module_init(neo1973_init); #ifdef CONFIG_MACH_NEO1973_GTA01 static void __exit neo1973_gta01_exit(void) { i2c_del_driver(&lm4857_i2c_driver); } #else static inline void neo1973_gta01_exit(void) {} #endif #ifdef CONFIG_MACH_NEO1973_GTA02 static void __exit neo1973_gta02_exit(void) { gpio_free(GTA02_GPIO_HP_IN); gpio_free(GTA02_GPIO_AMP_SHUT); } #else static inline void neo1973_gta02_exit(void) {} #endif static void __exit neo1973_exit(void) { snd_soc_unregister_dai(&bt_dai); platform_device_unregister(neo1973_snd_device); if (machine_is_neo1973_gta01()) neo1973_gta01_exit(); else neo1973_gta02_exit(); } module_exit(neo1973_exit); /* Module information */ MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org"); MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 devices"); MODULE_LICENSE("GPL");