262 lines
6.6 KiB
C
262 lines
6.6 KiB
C
/*
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* sdp4430.c -- SoC audio for TI OMAP4430 SDP
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <asm/mach-types.h>
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#include <plat/hardware.h>
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#include <plat/mux.h>
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#include "mcpdm.h"
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#include "omap-pcm.h"
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#include "../codecs/twl6040.h"
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static int twl6040_power_mode;
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static int sdp4430_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int clk_id, freq;
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int ret;
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if (twl6040_power_mode) {
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clk_id = TWL6040_SYSCLK_SEL_HPPLL;
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freq = 38400000;
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} else {
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clk_id = TWL6040_SYSCLK_SEL_LPPLL;
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freq = 32768;
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}
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/* set the codec mclk */
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ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
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SND_SOC_CLOCK_IN);
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if (ret) {
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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return ret;
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}
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static struct snd_soc_ops sdp4430_ops = {
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.hw_params = sdp4430_hw_params,
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};
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/* Headset jack */
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static struct snd_soc_jack hs_jack;
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/*Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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static int sdp4430_get_power_mode(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.integer.value[0] = twl6040_power_mode;
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return 0;
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}
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static int sdp4430_set_power_mode(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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if (twl6040_power_mode == ucontrol->value.integer.value[0])
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return 0;
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twl6040_power_mode = ucontrol->value.integer.value[0];
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return 1;
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}
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static const char *power_texts[] = {"Low-Power", "High-Performance"};
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static const struct soc_enum sdp4430_enum[] = {
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SOC_ENUM_SINGLE_EXT(2, power_texts),
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};
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static const struct snd_kcontrol_new sdp4430_controls[] = {
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SOC_ENUM_EXT("TWL6040 Power Mode", sdp4430_enum[0],
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sdp4430_get_power_mode, sdp4430_set_power_mode),
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};
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/* SDP4430 machine DAPM */
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static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Ext Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_SPK("Earphone Spk", NULL),
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SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* External Mics: MAINMIC, SUBMIC with bias*/
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{"MAINMIC", NULL, "Main Mic Bias"},
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{"SUBMIC", NULL, "Main Mic Bias"},
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{"Main Mic Bias", NULL, "Ext Mic"},
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/* External Speakers: HFL, HFR */
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{"Ext Spk", NULL, "HFL"},
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{"Ext Spk", NULL, "HFR"},
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/* Headset Mic: HSMIC with bias */
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{"HSMIC", NULL, "Headset Mic Bias"},
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{"Headset Mic Bias", NULL, "Headset Mic"},
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/* Headset Stereophone (Headphone): HSOL, HSOR */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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/* Earphone speaker */
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{"Earphone Spk", NULL, "EP"},
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/* Aux/FM Stereo In: AFML, AFMR */
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{"AFML", NULL, "Aux/FM Stereo In"},
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{"AFMR", NULL, "Aux/FM Stereo In"},
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};
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static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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int ret;
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/* Add SDP4430 specific controls */
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ret = snd_soc_add_controls(codec, sdp4430_controls,
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ARRAY_SIZE(sdp4430_controls));
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if (ret)
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return ret;
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/* Add SDP4430 specific widgets */
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ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
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ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
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if (ret)
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return ret;
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/* Set up SDP4430 specific audio path audio_map */
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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/* SDP4430 connected pins */
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snd_soc_dapm_enable_pin(dapm, "Ext Mic");
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snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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snd_soc_dapm_enable_pin(dapm, "AFML");
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snd_soc_dapm_enable_pin(dapm, "AFMR");
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snd_soc_dapm_enable_pin(dapm, "Headset Mic");
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snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
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ret = snd_soc_dapm_sync(dapm);
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if (ret)
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return ret;
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/* Headset jack detection */
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ret = snd_soc_jack_new(codec, "Headset Jack",
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SND_JACK_HEADSET, &hs_jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
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hs_jack_pins);
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if (machine_is_omap_4430sdp())
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twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
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else
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snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);
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return ret;
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}
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link sdp4430_dai = {
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.name = "TWL6040",
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.stream_name = "TWL6040",
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.cpu_dai_name ="omap-mcpdm-dai",
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.codec_dai_name = "twl6040-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl6040-codec",
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.init = sdp4430_twl6040_init,
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.ops = &sdp4430_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_sdp4430 = {
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.name = "SDP4430",
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.dai_link = &sdp4430_dai,
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.num_links = 1,
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};
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static struct platform_device *sdp4430_snd_device;
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static int __init sdp4430_soc_init(void)
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{
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int ret;
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if (!machine_is_omap_4430sdp())
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return -ENODEV;
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printk(KERN_INFO "SDP4430 SoC init\n");
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sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
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if (!sdp4430_snd_device) {
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printk(KERN_ERR "Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
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ret = platform_device_add(sdp4430_snd_device);
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if (ret)
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goto err;
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/* Codec starts in HP mode */
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twl6040_power_mode = 1;
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return 0;
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err:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(sdp4430_snd_device);
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return ret;
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}
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module_init(sdp4430_soc_init);
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static void __exit sdp4430_soc_exit(void)
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{
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platform_device_unregister(sdp4430_snd_device);
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}
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module_exit(sdp4430_soc_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC SDP4430");
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MODULE_LICENSE("GPL");
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