/* * mfld_machine.c - ASoc Machine driver for Intel Medfield MID platform * * Copyright (C) 2010 Intel Corp * Author: Vinod Koul * Author: Harsha Priya * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include "../codecs/sn95031.h" #define MID_MONO 1 #define MID_STEREO 2 #define MID_MAX_CAP 5 static unsigned int hs_switch; static unsigned int lo_dac; /* sound card controls */ static const char *headset_switch_text[] = {"Earpiece", "Headset"}; static const char *lo_text[] = {"Vibra", "Headset", "IHF", "None"}; static const struct soc_enum headset_enum = SOC_ENUM_SINGLE_EXT(2, headset_switch_text); static const struct soc_enum lo_enum = SOC_ENUM_SINGLE_EXT(4, lo_text); static int headset_get_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = hs_switch; return 0; } static int headset_set_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (ucontrol->value.integer.value[0] == hs_switch) return 0; if (ucontrol->value.integer.value[0]) { pr_debug("hs_set HS path\n"); snd_soc_dapm_enable_pin(&codec->dapm, "HPOUTL"); snd_soc_dapm_enable_pin(&codec->dapm, "HPOUTR"); snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT"); } else { pr_debug("hs_set EP path\n"); snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTL"); snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTR"); snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT"); } snd_soc_dapm_sync(&codec->dapm); hs_switch = ucontrol->value.integer.value[0]; return 0; } static void lo_enable_out_pins(struct snd_soc_codec *codec) { snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTL"); snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTR"); snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTL"); snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTR"); snd_soc_dapm_enable_pin(&codec->dapm, "VIB1OUT"); snd_soc_dapm_enable_pin(&codec->dapm, "VIB2OUT"); if (hs_switch) { snd_soc_dapm_enable_pin(&codec->dapm, "HPOUTL"); snd_soc_dapm_enable_pin(&codec->dapm, "HPOUTR"); snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT"); } else { snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTL"); snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTR"); snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT"); } } static int lo_get_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = lo_dac; return 0; } static int lo_set_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); if (ucontrol->value.integer.value[0] == lo_dac) return 0; /* we dont want to work with last state of lineout so just enable all * pins and then disable pins not required */ lo_enable_out_pins(codec); switch (ucontrol->value.integer.value[0]) { case 0: pr_debug("set vibra path\n"); snd_soc_dapm_disable_pin(&codec->dapm, "VIB1OUT"); snd_soc_dapm_disable_pin(&codec->dapm, "VIB2OUT"); snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0); break; case 1: pr_debug("set hs path\n"); snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTL"); snd_soc_dapm_disable_pin(&codec->dapm, "HPOUTR"); snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT"); snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x22); break; case 2: pr_debug("set spkr path\n"); snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTL"); snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTR"); snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x44); break; case 3: pr_debug("set null path\n"); snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTL"); snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTR"); snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x66); break; } snd_soc_dapm_sync(&codec->dapm); lo_dac = ucontrol->value.integer.value[0]; return 0; } static const struct snd_kcontrol_new mfld_snd_controls[] = { SOC_ENUM_EXT("Playback Switch", headset_enum, headset_get_switch, headset_set_switch), SOC_ENUM_EXT("Lineout Mux", lo_enum, lo_get_switch, lo_set_switch), }; static int mfld_init(struct snd_soc_pcm_runtime *runtime) { struct snd_soc_codec *codec = runtime->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; int ret_val; ret_val = snd_soc_add_controls(codec, mfld_snd_controls, ARRAY_SIZE(mfld_snd_controls)); if (ret_val) { pr_err("soc_add_controls failed %d", ret_val); return ret_val; } /* default is earpiece pin, userspace sets it explcitly */ snd_soc_dapm_disable_pin(dapm, "HPOUTL"); snd_soc_dapm_disable_pin(dapm, "HPOUTR"); /* default is lineout NC, userspace sets it explcitly */ snd_soc_dapm_disable_pin(dapm, "LINEOUTL"); snd_soc_dapm_disable_pin(dapm, "LINEOUTR"); lo_dac = 3; hs_switch = 0; return snd_soc_dapm_sync(dapm); } struct snd_soc_dai_link mfld_msic_dailink[] = { { .name = "Medfield Headset", .stream_name = "Headset", .cpu_dai_name = "Headset-cpu-dai", .codec_dai_name = "SN95031 Headset", .codec_name = "sn95031", .platform_name = "sst-platform", .init = mfld_init, }, { .name = "Medfield Speaker", .stream_name = "Speaker", .cpu_dai_name = "Speaker-cpu-dai", .codec_dai_name = "SN95031 Speaker", .codec_name = "sn95031", .platform_name = "sst-platform", .init = NULL, }, { .name = "Medfield Vibra", .stream_name = "Vibra1", .cpu_dai_name = "Vibra1-cpu-dai", .codec_dai_name = "SN95031 Vibra1", .codec_name = "sn95031", .platform_name = "sst-platform", .init = NULL, }, { .name = "Medfield Haptics", .stream_name = "Vibra2", .cpu_dai_name = "Vibra2-cpu-dai", .codec_dai_name = "SN95031 Vibra2", .codec_name = "sn95031", .platform_name = "sst-platform", .init = NULL, }, }; /* SoC card */ static struct snd_soc_card snd_soc_card_mfld = { .name = "medfield_audio", .dai_link = mfld_msic_dailink, .num_links = ARRAY_SIZE(mfld_msic_dailink), }; static int __devinit snd_mfld_mc_probe(struct platform_device *pdev) { struct platform_device *socdev; int ret_val = 0; pr_debug("snd_mfld_mc_probe called\n"); socdev = platform_device_alloc("soc-audio", -1); if (!socdev) { pr_err("soc-audio device allocation failed\n"); return -ENOMEM; } platform_set_drvdata(socdev, &snd_soc_card_mfld); ret_val = platform_device_add(socdev); if (ret_val) { pr_err("Unable to add soc-audio device, err %d\n", ret_val); platform_device_put(socdev); } platform_set_drvdata(pdev, socdev); pr_debug("successfully exited probe\n"); return ret_val; } static int __devexit snd_mfld_mc_remove(struct platform_device *pdev) { struct platform_device *socdev = platform_get_drvdata(pdev); pr_debug("snd_mfld_mc_remove called\n"); platform_device_unregister(socdev); platform_set_drvdata(pdev, NULL); return 0; } static struct platform_driver snd_mfld_mc_driver = { .driver = { .owner = THIS_MODULE, .name = "msic_audio", }, .probe = snd_mfld_mc_probe, .remove = __devexit_p(snd_mfld_mc_remove), }; static int __init snd_mfld_driver_init(void) { pr_debug("snd_mfld_driver_init called\n"); return platform_driver_register(&snd_mfld_mc_driver); } module_init(snd_mfld_driver_init); static void __exit snd_mfld_driver_exit(void) { pr_debug("snd_mfld_driver_exit called\n"); platform_driver_unregister(&snd_mfld_mc_driver); } module_exit(snd_mfld_driver_exit); MODULE_DESCRIPTION("ASoC Intel(R) MID Machine driver"); MODULE_AUTHOR("Vinod Koul "); MODULE_AUTHOR("Harsha Priya "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:msic-audio");