/* * sdp4430.c -- SoC audio for TI OMAP4430 SDP * * Author: Misael Lopez Cruz * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * 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., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include "mcpdm.h" #include "omap-mcpdm.h" #include "omap-pcm.h" #include "../codecs/twl6040.h" static int twl6040_power_mode; static int sdp4430_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; int clk_id, freq; int ret; if (twl6040_power_mode) { clk_id = TWL6040_SYSCLK_SEL_HPPLL; freq = 38400000; } else { clk_id = TWL6040_SYSCLK_SEL_LPPLL; freq = 32768; } /* set the codec mclk */ ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq, SND_SOC_CLOCK_IN); if (ret) { printk(KERN_ERR "can't set codec system clock\n"); return ret; } } static struct snd_soc_ops sdp4430_ops = { .hw_params = sdp4430_hw_params, }; static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = twl6040_power_mode; return 0; } static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { if (twl6040_power_mode == ucontrol->value.integer.value[0]) return 0; twl6040_power_mode = ucontrol->value.integer.value[0]; return 1; } static const char *power_texts[] = {"Low-Power", "High-Performance"}; static const struct soc_enum sdp4430_enum[] = { SOC_ENUM_SINGLE_EXT(2, power_texts), }; static const struct snd_kcontrol_new sdp4430_controls[] = { SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0], sdp4430_get_power_mode, sdp4430_set_power_mode), }; /* SDP4430 machine DAPM */ static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = { SND_SOC_DAPM_MIC("Ext Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_HP("Headset Stereophone", NULL), SND_SOC_DAPM_SPK("Earphone Spk", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* External Mics: MAINMIC, SUBMIC with bias*/ {"MAINMIC", NULL, "Main Mic Bias"}, {"SUBMIC", NULL, "Main Mic Bias"}, {"Main Mic Bias", NULL, "Ext Mic"}, /* External Speakers: HFL, HFR */ {"Ext Spk", NULL, "HFL"}, {"Ext Spk", NULL, "HFR"}, /* Headset Mic: HSMIC with bias */ {"HSMIC", NULL, "Headset Mic Bias"}, {"Headset Mic Bias", NULL, "Headset Mic"}, /* Headset Stereophone (Headphone): HSOL, HSOR */ {"Headset Stereophone", NULL, "HSOL"}, {"Headset Stereophone", NULL, "HSOR"}, /* Earphone speaker */ {"Earphone Spk", NULL, "EP"}, }; static int sdp4430_twl6040_init(struct snd_soc_codec *codec) { int ret; /* Add SDP4430 specific controls */ ret = snd_soc_add_controls(codec, sdp4430_controls, ARRAY_SIZE(sdp4430_controls)); if (ret) return ret; /* Add SDP4430 specific widgets */ ret = snd_soc_dapm_new_controls(codec, sdp4430_twl6040_dapm_widgets, ARRAY_SIZE(sdp4430_twl6040_dapm_widgets)); if (ret) return ret; /* Set up SDP4430 specific audio path audio_map */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); /* SDP4430 connected pins */ snd_soc_dapm_enable_pin(codec, "Ext Mic"); snd_soc_dapm_enable_pin(codec, "Ext Spk"); snd_soc_dapm_enable_pin(codec, "Headset Mic"); snd_soc_dapm_enable_pin(codec, "Headset Stereophone"); /* TWL6040 not connected pins */ snd_soc_dapm_nc_pin(codec, "AFML"); snd_soc_dapm_nc_pin(codec, "AFMR"); ret = snd_soc_dapm_sync(codec); return ret; } /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link sdp4430_dai = { .name = "TWL6040", .stream_name = "TWL6040", .cpu_dai = &omap_mcpdm_dai, .codec_dai = &twl6040_dai, .init = sdp4430_twl6040_init, }; /* Audio machine driver */ static struct snd_soc_card snd_soc_sdp4430 = { .name = "SDP4430", .platform = &omap_soc_platform, .dai_link = &sdp4430_dai, .num_links = 1, }; /* Audio subsystem */ static struct snd_soc_device sdp4430_snd_devdata = { .card = &snd_soc_sdp4430, .codec_dev = &soc_codec_dev_twl6040, }; static struct platform_device *sdp4430_snd_device; static int __init sdp4430_soc_init(void) { int ret; if (!machine_is_omap_4430sdp()) { pr_debug("Not SDP4430!\n"); return -ENODEV; } printk(KERN_INFO "SDP4430 SoC init\n"); sdp4430_snd_device = platform_device_alloc("soc-audio", -1); if (!sdp4430_snd_device) { printk(KERN_ERR "Platform device allocation failed\n"); return -ENOMEM; } platform_set_drvdata(sdp4430_snd_device, &sdp4430_snd_devdata); sdp4430_snd_devdata.dev = &sdp4430_snd_device->dev; ret = platform_device_add(sdp4430_snd_device); if (ret) goto err; /* Codec starts in HP mode */ twl6040_power_mode = 1; return 0; err: printk(KERN_ERR "Unable to add platform device\n"); platform_device_put(sdp4430_snd_device); return ret; } module_init(sdp4430_soc_init); static void __exit sdp4430_soc_exit(void) { platform_device_unregister(sdp4430_snd_device); } module_exit(sdp4430_soc_exit); MODULE_AUTHOR("Misael Lopez Cruz "); MODULE_DESCRIPTION("ALSA SoC SDP4430"); MODULE_LICENSE("GPL");