/* * om_3d7K_wm8753.c -- SoC audio for 3D7K * * Based on neo1973_gta02_wm8753 * * Copyright 2009 Openmoko Inc * Author: Ben Dooks * Copyright 2007 Openmoko Inc * Author: Graeme Gregory * Copyright 2007 Wolfson Microelectronics PLC. * Author: Graeme Gregory * * 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 "../codecs/wm8753.h" #include "s3c24xx-pcm.h" #include "s3c64xx-i2s.h" /* define the scenarios */ #define NEO_AUDIO_OFF 0 #define NEO_GSM_CALL_AUDIO_HANDSET 1 #define NEO_GSM_CALL_AUDIO_HEADSET 2 #define NEO_GSM_CALL_AUDIO_BLUETOOTH 3 #define NEO_STEREO_TO_SPEAKERS 4 #define NEO_STEREO_TO_HEADPHONES 5 #define NEO_CAPTURE_HANDSET 6 #define NEO_CAPTURE_HEADSET 7 #define NEO_CAPTURE_BLUETOOTH 8 #define NEO_STEREO_TO_HANDSET_SPK 9 static struct snd_soc_card om_3d7K; static int om_3d7K_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 = s3c64xx_i2s_get_clockrate(cpu_dai); 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; } ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_MUX, 0, SND_SOC_CLOCK_OUT); if (ret < 0) goto err; /* 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) goto err; /* 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) goto err; /* 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) goto err; #if 0 /* do not think we need to set this if the cpu is not the bitclk * master */ /* 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; #endif /* set codec BCLK division for sample rate */ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk); if (ret < 0) goto err; /* set prescaler division for sample rate */ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C64XX_DIV_PRESCALER, 2-1); if (ret < 0) goto err; /* codec PLL input is ACLK/2 */ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, iis_clkrate / 2, pll_out); if (ret < 0) goto err; return 0; err: printk(KERN_ERR "%s: failed %d\n", __func__, ret); return ret; } static int om_3d7K_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); } /* * 3D7K WM8753 HiFi DAI opserations. */ static struct snd_soc_ops om_3d7K_hifi_ops = { .hw_params = om_3d7K_hifi_hw_params, .hw_free = om_3d7K_hifi_hw_free, }; static int om_3d7K_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 = s3c64xx_i2s_get_clockrate(rtd->dai->cpu_dai); 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 / 2, 12288000); if (ret < 0) return ret; return 0; } static int om_3d7K_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 om_3d7K_voice_ops = { .hw_params = om_3d7K_voice_hw_params, .hw_free = om_3d7K_voice_hw_free, }; static int om_3d7K_set_stereo_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "Stereo Out", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_stereo_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "Stereo Out"); return 0; } static int om_3d7K_set_gsm_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "GSM Line Out", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_gsm_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "GSM Line Out"); return 0; } static int om_3d7K_set_gsm_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "GSM Line In", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_gsm_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "GSM Line In"); return 0; } static int om_3d7K_set_headset_mic(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "Headset Mic", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_headset_mic(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "Headset Mic"); return 0; } static int om_3d7K_set_handset_mic(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "Handset Mic", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_handset_mic(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "Handset Mic"); return 0; } static int om_3d7K_set_handset_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); int val = ucontrol->value.integer.value[0]; snd_soc_dapm_set_endpoint(codec, "Handset Spk", val); snd_soc_dapm_sync(codec); return 0; } static int om_3d7K_get_handset_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = snd_soc_dapm_get_endpoint(codec, "Handset Spk"); return 0; } static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { SND_SOC_DAPM_LINE("Stereo Out", NULL), 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), SND_SOC_DAPM_SPK("Handset Spk", NULL), }; /* example machine audio_mapnections */ static const struct snd_soc_dapm_route audio_map[] = { {"Stereo Out", NULL, "LOUT2"}, {"Stereo Out", NULL, "ROUT2"}, /* 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"}, /* Call Speaker */ {"Handset Spk", NULL, "OUT3"}, {"Handset Spk", NULL, "LOUT1"}, /* Connect the ALC pins */ {"ACIN", NULL, "ACOP"}, }; static const struct snd_kcontrol_new wm8753_om_3d7K_controls[] = { SOC_SINGLE_EXT("DAPM Stereo Out Switch", 0, 0, 1, 0, om_3d7K_get_stereo_out, om_3d7K_set_stereo_out), SOC_SINGLE_EXT("DAPM GSM Line Out Switch", 1, 0, 1, 0, om_3d7K_get_gsm_out, om_3d7K_set_gsm_out), SOC_SINGLE_EXT("DAPM GSM Line In Switch", 2, 0, 1, 0, om_3d7K_get_gsm_in, om_3d7K_set_gsm_in), SOC_SINGLE_EXT("DAPM Headset Mic Switch", 3, 0, 1, 0, om_3d7K_get_headset_mic, om_3d7K_set_headset_mic), SOC_SINGLE_EXT("DAPM Handset Mic Switch", 4, 0, 1, 0, om_3d7K_get_handset_mic, om_3d7K_set_handset_mic), SOC_SINGLE_EXT("DAPM Handset Spk Switch", 5, 0, 1, 0, om_3d7K_get_handset_spk, om_3d7K_set_handset_spk), }; /* * This is an example machine initialisation for a wm8753 connected to a * neo1973 GTA02. */ static int om_3d7K_wm8753_init(struct snd_soc_codec *codec) { int i, err; /* set up NC codec pins */ snd_soc_dapm_set_endpoint(codec, "OUT4", 0); snd_soc_dapm_set_endpoint(codec, "LINE1", 0); snd_soc_dapm_set_endpoint(codec, "LINE2", 0); /* Add neo1973 gta02 specific widgets */ snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets, ARRAY_SIZE(wm8753_dapm_widgets)); /* add neo1973 gta02 specific controls */ for (i = 0; i < ARRAY_SIZE(wm8753_om_3d7K_controls); i++) { err = snd_ctl_add(codec->card, snd_soc_cnew(&wm8753_om_3d7K_controls[i], codec, NULL)); if (err < 0) return err; } /* set up neo1973 gta02 specific audio path audio_mapnects */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); /* set endpoints to default off mode */ snd_soc_dapm_set_endpoint(codec, "Stereo Out", 0); snd_soc_dapm_set_endpoint(codec, "GSM Line Out",0); snd_soc_dapm_set_endpoint(codec, "GSM Line In", 0); snd_soc_dapm_set_endpoint(codec, "Headset Mic", 0); snd_soc_dapm_set_endpoint(codec, "Handset Mic", 0); snd_soc_dapm_set_endpoint(codec, "Handset Spk", 0); 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 om_3d7K_dai[] = { { /* Hifi Playback - for similatious use with voice below */ .name = "WM8753", .stream_name = "WM8753 HiFi", .cpu_dai = &s3c64xx_i2s_dai, .codec_dai = &wm8753_dai[WM8753_DAI_HIFI], .init = om_3d7K_wm8753_init, .ops = &om_3d7K_hifi_ops, }, { /* Voice via BT */ .name = "Bluetooth", .stream_name = "Voice", .cpu_dai = &bt_dai, .codec_dai = &wm8753_dai[WM8753_DAI_VOICE], .ops = &om_3d7K_voice_ops, }, }; static struct snd_soc_card om_3d7K = { .name = "om-3d7K", .platform = &s3c24xx_soc_platform, .dai_link = om_3d7K_dai, .num_links = ARRAY_SIZE(om_3d7K_dai), }; static struct snd_soc_device om_3d7K_snd_devdata = { .card = &om_3d7K, .codec_dev = &soc_codec_dev_wm8753, }; static struct platform_device *om_3d7K_snd_device; static int __init om_3d7K_init(void) { int ret; if (!machine_is_openmoko_gta03()) { printk(KERN_INFO "Only 3D7K supported by ASoC driver\n"); return -ENODEV; } /* register bluetooth DAI here */ ret = snd_soc_register_dai(&bt_dai); if (ret) return ret; om_3d7K_snd_device = platform_device_alloc("soc-audio", 1); if (!om_3d7K_snd_device) return -ENOMEM; platform_set_drvdata(om_3d7K_snd_device, &om_3d7K_snd_devdata); om_3d7K_snd_devdata.dev = &om_3d7K_snd_device->dev; ret = platform_device_add(om_3d7K_snd_device); if (ret) { platform_device_put(om_3d7K_snd_device); return ret; } return ret; } static void __exit om_3d7K_exit(void) { platform_device_unregister(om_3d7K_snd_device); } module_init(om_3d7K_init); module_exit(om_3d7K_exit); /* Module information */ MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org; Ben Dooks "); MODULE_DESCRIPTION("ALSA SoC WM8753 OM 3D7K"); MODULE_LICENSE("GPL");