346 lines
8.8 KiB
C
346 lines
8.8 KiB
C
/*
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* sdp3430.c -- SoC audio for TI OMAP3430 SDP
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*
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* Based on:
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* Author: Steve Sakoman <steve@sakoman.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 <linux/i2c/twl.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 <mach/hardware.h>
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#include <mach/gpio.h>
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#include <plat/mcbsp.h>
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/* Register descriptions for twl4030 codec part */
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#include <linux/mfd/twl4030-codec.h>
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#include "omap-mcbsp.h"
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#include "omap-pcm.h"
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/* TWL4030 PMBR1 Register */
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#define TWL4030_INTBR_PMBR1 0x0D
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/* TWL4030 PMBR1 Register GPIO6 mux bit */
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#define TWL4030_GPIO6_PWM0_MUTE(value) (value << 2)
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static struct snd_soc_card snd_soc_sdp3430;
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static int sdp3430_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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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int ret;
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/* Set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0) {
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printk(KERN_ERR "can't set codec DAI configuration\n");
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return ret;
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}
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/* Set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai,
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SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0) {
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printk(KERN_ERR "can't set cpu DAI configuration\n");
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return ret;
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}
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/* Set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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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 0;
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}
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static struct snd_soc_ops sdp3430_ops = {
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.hw_params = sdp3430_hw_params,
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};
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static int sdp3430_hw_voice_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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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int ret;
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/* Set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret) {
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printk(KERN_ERR "can't set codec DAI configuration\n");
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return ret;
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}
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/* Set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai,
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SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0) {
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printk(KERN_ERR "can't set cpu DAI configuration\n");
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return ret;
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}
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/* Set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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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 0;
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}
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static struct snd_soc_ops sdp3430_voice_ops = {
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.hw_params = sdp3430_hw_voice_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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/* Headset jack detection gpios */
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static struct snd_soc_jack_gpio hs_jack_gpios[] = {
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{
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.gpio = (OMAP_MAX_GPIO_LINES + 2),
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.name = "hsdet-gpio",
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.report = SND_JACK_HEADSET,
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.debounce_time = 200,
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},
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};
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/* SDP3430 machine DAPM */
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static const struct snd_soc_dapm_widget sdp3430_twl4030_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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};
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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, "Mic Bias 1"},
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{"SUBMIC", NULL, "Mic Bias 2"},
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{"Mic Bias 1", NULL, "Ext Mic"},
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{"Mic Bias 2", 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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};
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static int sdp3430_twl4030_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 SDP3430 specific widgets */
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ret = snd_soc_dapm_new_controls(dapm, sdp3430_twl4030_dapm_widgets,
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ARRAY_SIZE(sdp3430_twl4030_dapm_widgets));
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if (ret)
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return ret;
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/* Set up SDP3430 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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/* SDP3430 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_disable_pin(dapm, "Headset Mic");
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snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
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/* TWL4030 not connected pins */
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snd_soc_dapm_nc_pin(dapm, "AUXL");
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snd_soc_dapm_nc_pin(dapm, "AUXR");
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snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
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snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
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snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
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snd_soc_dapm_nc_pin(dapm, "OUTL");
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snd_soc_dapm_nc_pin(dapm, "OUTR");
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snd_soc_dapm_nc_pin(dapm, "EARPIECE");
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snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
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snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
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snd_soc_dapm_nc_pin(dapm, "CARKITL");
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snd_soc_dapm_nc_pin(dapm, "CARKITR");
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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 (ret)
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return ret;
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ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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return ret;
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}
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static int sdp3430_twl4030_voice_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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unsigned short reg;
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/* Enable voice interface */
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reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
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reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
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codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
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return 0;
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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 sdp3430_dai[] = {
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{
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.name = "TWL4030 I2S",
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.stream_name = "TWL4030 Audio",
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.cpu_dai_name = "omap-mcbsp-dai.1",
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.codec_dai_name = "twl4030-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.init = sdp3430_twl4030_init,
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.ops = &sdp3430_ops,
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},
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{
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.name = "TWL4030 PCM",
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.stream_name = "TWL4030 Voice",
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.cpu_dai_name = "omap-mcbsp-dai.2",
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.codec_dai_name = "twl4030-voice",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.init = sdp3430_twl4030_voice_init,
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.ops = &sdp3430_voice_ops,
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},
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_sdp3430 = {
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.name = "SDP3430",
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.dai_link = sdp3430_dai,
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.num_links = ARRAY_SIZE(sdp3430_dai),
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};
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static struct platform_device *sdp3430_snd_device;
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static int __init sdp3430_soc_init(void)
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{
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int ret;
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u8 pin_mux;
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if (!machine_is_omap_3430sdp())
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return -ENODEV;
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printk(KERN_INFO "SDP3430 SoC init\n");
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sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
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if (!sdp3430_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(sdp3430_snd_device, &snd_soc_sdp3430);
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/* Set TWL4030 GPIO6 as EXTMUTE signal */
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twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
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TWL4030_INTBR_PMBR1);
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pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
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pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
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twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
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TWL4030_INTBR_PMBR1);
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ret = platform_device_add(sdp3430_snd_device);
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if (ret)
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goto err1;
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return 0;
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err1:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(sdp3430_snd_device);
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return ret;
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}
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module_init(sdp3430_soc_init);
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static void __exit sdp3430_soc_exit(void)
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{
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snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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platform_device_unregister(sdp3430_snd_device);
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}
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module_exit(sdp3430_soc_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC SDP3430");
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MODULE_LICENSE("GPL");
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