/* * corgi.c -- SoC audio for Corgi * * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. * * Authors: Liam Girdwood * Richard Purdie * * 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. * * Revision history * 30th Nov 2005 Initial version. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../codecs/wm8731.h" #include "pxa2xx-pcm.h" #include "pxa2xx-i2s.h" #define CORGI_HP 0 #define CORGI_MIC 1 #define CORGI_LINE 2 #define CORGI_HEADSET 3 #define CORGI_HP_OFF 4 #define CORGI_SPK_ON 0 #define CORGI_SPK_OFF 1 /* audio clock in Hz - rounded from 12.235MHz */ #define CORGI_AUDIO_CLOCK 12288000 static int corgi_jack_func; static int corgi_spk_func; static void corgi_ext_control(struct snd_soc_codec *codec) { int spk = 0, mic = 0, line = 0, hp = 0, hs = 0; /* set up jack connection */ switch (corgi_jack_func) { case CORGI_HP: hp = 1; /* set = unmute headphone */ set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L); set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R); break; case CORGI_MIC: mic = 1; /* reset = mute headphone */ reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L); reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R); break; case CORGI_LINE: line = 1; reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L); reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R); break; case CORGI_HEADSET: hs = 1; mic = 1; reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L); set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R); break; } if (corgi_spk_func == CORGI_SPK_ON) spk = 1; /* set the enpoints to their new connetion states */ snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk); snd_soc_dapm_set_endpoint(codec, "Mic Jack", mic); snd_soc_dapm_set_endpoint(codec, "Line Jack", line); snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp); snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs); /* signal a DAPM event */ snd_soc_dapm_sync_endpoints(codec); } static int corgi_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->socdev->codec; /* check the jack status at stream startup */ corgi_ext_control(codec); return 0; } /* we need to unmute the HP at shutdown as the mute burns power on corgi */ static int corgi_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->socdev->codec; /* set = unmute headphone */ set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L); set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R); return 0; } static int corgi_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_codec_dai *codec_dai = rtd->dai->codec_dai; struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; unsigned int clk = 0; int ret = 0; switch (params_rate(params)) { case 8000: case 16000: case 48000: case 96000: clk = 12288000; break; case 11025: case 22050: case 44100: clk = 11289600; break; } /* set codec DAI configuration */ ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (ret < 0) return ret; /* set cpu DAI configuration */ ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | 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 = codec_dai->dai_ops.set_sysclk(codec_dai, WM8731_SYSCLK, clk, SND_SOC_CLOCK_IN); if (ret < 0) return ret; /* set the I2S system clock as input (unused) */ ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, SND_SOC_CLOCK_IN); if (ret < 0) return ret; return 0; } static struct snd_soc_ops corgi_ops = { .startup = corgi_startup, .hw_params = corgi_hw_params, .shutdown = corgi_shutdown, }; static int corgi_get_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = corgi_jack_func; return 0; } static int corgi_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (corgi_jack_func == ucontrol->value.integer.value[0]) return 0; corgi_jack_func = ucontrol->value.integer.value[0]; corgi_ext_control(codec); return 1; } static int corgi_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = corgi_spk_func; return 0; } static int corgi_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (corgi_spk_func == ucontrol->value.integer.value[0]) return 0; corgi_spk_func = ucontrol->value.integer.value[0]; corgi_ext_control(codec); return 1; } static int corgi_amp_event(struct snd_soc_dapm_widget *w, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON); else reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON); return 0; } static int corgi_mic_event(struct snd_soc_dapm_widget *w, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS); else reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS); return 0; } /* corgi machine dapm widgets */ static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event), SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event), SND_SOC_DAPM_LINE("Line Jack", NULL), SND_SOC_DAPM_HP("Headset Jack", NULL), }; /* Corgi machine audio map (connections to the codec pins) */ static const char *audio_map[][3] = { /* headset Jack - in = micin, out = LHPOUT*/ {"Headset Jack", NULL, "LHPOUT"}, /* headphone connected to LHPOUT1, RHPOUT1 */ {"Headphone Jack", NULL, "LHPOUT"}, {"Headphone Jack", NULL, "RHPOUT"}, /* speaker connected to LOUT, ROUT */ {"Ext Spk", NULL, "ROUT"}, {"Ext Spk", NULL, "LOUT"}, /* mic is connected to MICIN (via right channel of headphone jack) */ {"MICIN", NULL, "Mic Jack"}, /* Same as the above but no mic bias for line signals */ {"MICIN", NULL, "Line Jack"}, {NULL, NULL, NULL}, }; static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", "Off"}; static const char *spk_function[] = {"On", "Off"}; static const struct soc_enum corgi_enum[] = { SOC_ENUM_SINGLE_EXT(5, jack_function), SOC_ENUM_SINGLE_EXT(2, spk_function), }; static const struct snd_kcontrol_new wm8731_corgi_controls[] = { SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack, corgi_set_jack), SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk, corgi_set_spk), }; /* * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device */ static int corgi_wm8731_init(struct snd_soc_codec *codec) { int i, err; snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0); snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0); /* Add corgi specific controls */ for (i = 0; i < ARRAY_SIZE(wm8731_corgi_controls); i++) { err = snd_ctl_add(codec->card, snd_soc_cnew(&wm8731_corgi_controls[i],codec, NULL)); if (err < 0) return err; } /* Add corgi specific widgets */ for(i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) { snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]); } /* Set up corgi specific audio path audio_map */ for(i = 0; audio_map[i][0] != NULL; i++) { snd_soc_dapm_connect_input(codec, audio_map[i][0], audio_map[i][1], audio_map[i][2]); } snd_soc_dapm_sync_endpoints(codec); return 0; } /* corgi digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link corgi_dai = { .name = "WM8731", .stream_name = "WM8731", .cpu_dai = &pxa_i2s_dai, .codec_dai = &wm8731_dai, .init = corgi_wm8731_init, .ops = &corgi_ops, }; /* corgi audio machine driver */ static struct snd_soc_machine snd_soc_machine_corgi = { .name = "Corgi", .dai_link = &corgi_dai, .num_links = 1, }; /* corgi audio private data */ static struct wm8731_setup_data corgi_wm8731_setup = { .i2c_address = 0x1b, }; /* corgi audio subsystem */ static struct snd_soc_device corgi_snd_devdata = { .machine = &snd_soc_machine_corgi, .platform = &pxa2xx_soc_platform, .codec_dev = &soc_codec_dev_wm8731, .codec_data = &corgi_wm8731_setup, }; static struct platform_device *corgi_snd_device; static int __init corgi_init(void) { int ret; if (!(machine_is_corgi() || machine_is_shepherd() || machine_is_husky())) return -ENODEV; corgi_snd_device = platform_device_alloc("soc-audio", -1); if (!corgi_snd_device) return -ENOMEM; platform_set_drvdata(corgi_snd_device, &corgi_snd_devdata); corgi_snd_devdata.dev = &corgi_snd_device->dev; ret = platform_device_add(corgi_snd_device); if (ret) platform_device_put(corgi_snd_device); return ret; } static void __exit corgi_exit(void) { platform_device_unregister(corgi_snd_device); } module_init(corgi_init); module_exit(corgi_exit); /* Module information */ MODULE_AUTHOR("Richard Purdie"); MODULE_DESCRIPTION("ALSA SoC Corgi"); MODULE_LICENSE("GPL");