/* * neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices * * Copyright 2007 Openmoko Inc * Author: Graeme Gregory * Copyright 2007 Wolfson Microelectronics PLC. * Author: Graeme Gregory * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com * 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 "../codecs/wm8753.h" #include "s3c24xx-i2s.h" 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->codec_dai; struct snd_soc_dai *cpu_dai = rtd->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, 0, 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->codec_dai; /* disable the PLL */ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 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->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; /* configure and enable PLL for 12.288MHz output */ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 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->codec_dai; /* disable the PLL */ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 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 neo1973_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 neo1973_wm8753_routes[] = { /* 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 neo1973_wm8753_controls[] = { 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"), }; /* GTA02 specific routes and controls */ #ifdef CONFIG_MACH_NEO1973_GTA02 static int gta02_speaker_enabled; static int lm4853_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { gta02_speaker_enabled = ucontrol->value.integer.value[0]; gpio_set_value(GTA02_GPIO_HP_IN, !gta02_speaker_enabled); return 0; } static int lm4853_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = gta02_speaker_enabled; 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_OFF(event)); return 0; } static const struct snd_soc_dapm_route neo1973_gta02_routes[] = { /* Connections to the amp */ {"Stereo Out", NULL, "LOUT1"}, {"Stereo Out", NULL, "ROUT1"}, /* Call Speaker */ {"Handset Spk", NULL, "LOUT2"}, {"Handset Spk", NULL, "ROUT2"}, }; static const struct snd_kcontrol_new neo1973_gta02_wm8753_controls[] = { SOC_DAPM_PIN_SWITCH("Handset Spk"), SOC_DAPM_PIN_SWITCH("Stereo Out"), SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0, lm4853_get_spk, lm4853_set_spk), }; static const struct snd_soc_dapm_widget neo1973_gta02_wm8753_dapm_widgets[] = { SND_SOC_DAPM_SPK("Handset Spk", NULL), SND_SOC_DAPM_SPK("Stereo Out", lm4853_event), }; static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec) { struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; ret = snd_soc_dapm_new_controls(dapm, neo1973_gta02_wm8753_dapm_widgets, ARRAY_SIZE(neo1973_gta02_wm8753_dapm_widgets)); if (ret) return ret; ret = snd_soc_dapm_add_routes(dapm, neo1973_gta02_routes, ARRAY_SIZE(neo1973_gta02_routes)); if (ret) return ret; ret = snd_soc_add_controls(codec, neo1973_gta02_wm8753_controls, ARRAY_SIZE(neo1973_gta02_wm8753_controls)); if (ret) return ret; snd_soc_dapm_disable_pin(dapm, "Stereo Out"); snd_soc_dapm_disable_pin(dapm, "Handset Spk"); snd_soc_dapm_ignore_suspend(dapm, "Stereo Out"); snd_soc_dapm_ignore_suspend(dapm, "Handset Spk"); return 0; } #else static int neo1973_gta02_wm8753_init(struct snd_soc_code *codec) { return 0; } #endif static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; /* set up NC codec pins */ if (machine_is_neo1973_gta01()) { snd_soc_dapm_nc_pin(dapm, "LOUT2"); snd_soc_dapm_nc_pin(dapm, "ROUT2"); } snd_soc_dapm_nc_pin(dapm, "OUT3"); snd_soc_dapm_nc_pin(dapm, "OUT4"); snd_soc_dapm_nc_pin(dapm, "LINE1"); snd_soc_dapm_nc_pin(dapm, "LINE2"); /* Add neo1973 specific widgets */ ret = snd_soc_dapm_new_controls(dapm, neo1973_wm8753_dapm_widgets, ARRAY_SIZE(neo1973_wm8753_dapm_widgets)); if (ret) return ret; /* add neo1973 specific controls */ ret = snd_soc_add_controls(codec, neo1973_wm8753_controls, ARRAY_SIZE(neo1973_wm8753_controls)); if (ret) return ret; /* set up neo1973 specific audio routes */ ret = snd_soc_dapm_add_routes(dapm, neo1973_wm8753_routes, ARRAY_SIZE(neo1973_wm8753_routes)); if (ret) return ret; /* set endpoints to default off mode */ snd_soc_dapm_disable_pin(dapm, "GSM Line Out"); snd_soc_dapm_disable_pin(dapm, "GSM Line In"); snd_soc_dapm_disable_pin(dapm, "Headset Mic"); snd_soc_dapm_disable_pin(dapm, "Handset Mic"); /* allow audio paths from the GSM modem to run during suspend */ snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out"); snd_soc_dapm_ignore_suspend(dapm, "GSM Line In"); snd_soc_dapm_ignore_suspend(dapm, "Headset Mic"); snd_soc_dapm_ignore_suspend(dapm, "Handset Mic"); if (machine_is_neo1973_gta02()) { ret = neo1973_gta02_wm8753_init(codec); if (ret) return ret; } snd_soc_dapm_sync(dapm); return 0; } /* GTA01 specific controls */ #ifdef CONFIG_MACH_NEO1973_GTA01 static const struct snd_soc_dapm_route neo1973_lm4857_routes[] = { {"Amp IN", NULL, "ROUT1"}, {"Amp IN", NULL, "LOUT1"}, {"Handset Spk", NULL, "Amp EP"}, {"Stereo Out", NULL, "Amp LS"}, {"Headphone", NULL, "Amp HP"}, }; static const struct snd_soc_dapm_widget neo1973_lm4857_dapm_widgets[] = { SND_SOC_DAPM_SPK("Handset Spk", NULL), SND_SOC_DAPM_SPK("Stereo Out", NULL), SND_SOC_DAPM_HP("Headphone", NULL), }; static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm) { int ret; ret = snd_soc_dapm_new_controls(dapm, neo1973_lm4857_dapm_widgets, ARRAY_SIZE(neo1973_lm4857_dapm_widgets)); if (ret) return ret; ret = snd_soc_dapm_add_routes(dapm, neo1973_lm4857_routes, ARRAY_SIZE(neo1973_lm4857_routes)); if (ret) return ret; snd_soc_dapm_ignore_suspend(dapm, "Stereo Out"); snd_soc_dapm_ignore_suspend(dapm, "Handset Spk"); snd_soc_dapm_ignore_suspend(dapm, "Headphone"); snd_soc_dapm_sync(dapm); return 0; } #else static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm) { return 0; }; #endif static struct snd_soc_dai_link neo1973_dai[] = { { /* Hifi Playback - for similatious use with voice below */ .name = "WM8753", .stream_name = "WM8753 HiFi", .platform_name = "samsung-audio", .cpu_dai_name = "s3c24xx-iis", .codec_dai_name = "wm8753-hifi", .codec_name = "wm8753-codec.0-001a", .init = neo1973_wm8753_init, .ops = &neo1973_hifi_ops, }, { /* Voice via BT */ .name = "Bluetooth", .stream_name = "Voice", .cpu_dai_name = "dfbmcs320-pcm", .codec_dai_name = "wm8753-voice", .codec_name = "wm8753-codec.0-001a", .ops = &neo1973_voice_ops, }, }; static struct snd_soc_aux_dev neo1973_aux_devs[] = { { .name = "dfbmcs320", .codec_name = "dfbmcs320.0", }, { .name = "lm4857", .codec_name = "lm4857.0-007c", .init = neo1973_lm4857_init, }, }; static struct snd_soc_codec_conf neo1973_codec_conf[] = { { .dev_name = "lm4857.0-007c", .name_prefix = "Amp", }, }; #ifdef CONFIG_MACH_NEO1973_GTA02 static const struct gpio neo1973_gta02_gpios[] = { { GTA02_GPIO_HP_IN, GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" }, { GTA02_GPIO_AMP_SHUT, GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" }, }; #else static const struct gpio neo1973_gta02_gpios[] = {}; #endif static struct snd_soc_card neo1973 = { .name = "neo1973", .dai_link = neo1973_dai, .num_links = ARRAY_SIZE(neo1973_dai), .aux_dev = neo1973_aux_devs, .num_aux_devs = ARRAY_SIZE(neo1973_aux_devs), .codec_conf = neo1973_codec_conf, .num_configs = ARRAY_SIZE(neo1973_codec_conf), }; static struct platform_device *neo1973_snd_device; 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.name = "neo1973gta02"; neo1973.num_aux_devs = 1; ret = gpio_request_array(neo1973_gta02_gpios, ARRAY_SIZE(neo1973_gta02_gpios)); if (ret) return ret; } neo1973_snd_device = platform_device_alloc("soc-audio", -1); if (!neo1973_snd_device) { ret = -ENOMEM; goto err_gpio_free; } platform_set_drvdata(neo1973_snd_device, &neo1973); ret = platform_device_add(neo1973_snd_device); if (ret) goto err_put_device; return 0; err_put_device: platform_device_put(neo1973_snd_device); err_gpio_free: if (machine_is_neo1973_gta02()) { gpio_free_array(neo1973_gta02_gpios, ARRAY_SIZE(neo1973_gta02_gpios)); } return ret; } module_init(neo1973_init); static void __exit neo1973_exit(void) { platform_device_unregister(neo1973_snd_device); if (machine_is_neo1973_gta02()) { gpio_free_array(neo1973_gta02_gpios, ARRAY_SIZE(neo1973_gta02_gpios)); } } module_exit(neo1973_exit); /* Module information */ MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org"); MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner"); MODULE_LICENSE("GPL");