You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
291 lines
7.6 KiB
291 lines
7.6 KiB
/*
|
|
* zoom2.c -- SoC audio for Zoom2
|
|
*
|
|
* Author: Misael Lopez Cruz <x0052729@ti.com>
|
|
*
|
|
* 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 <linux/clk.h>
|
|
#include <linux/platform_device.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/soc-dapm.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/gpio.h>
|
|
#include <mach/board-zoom.h>
|
|
#include <plat/mcbsp.h>
|
|
|
|
/* Register descriptions for twl4030 codec part */
|
|
#include <linux/mfd/twl4030-codec.h>
|
|
|
|
#include "omap-mcbsp.h"
|
|
#include "omap-pcm.h"
|
|
|
|
#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
|
|
|
|
static int zoom2_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->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
int ret;
|
|
|
|
/* Set codec DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(codec_dai,
|
|
SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set codec DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set cpu DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(cpu_dai,
|
|
SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set cpu DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set codec system clock\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops zoom2_ops = {
|
|
.hw_params = zoom2_hw_params,
|
|
};
|
|
|
|
static int zoom2_hw_voice_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->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
int ret;
|
|
|
|
/* Set codec DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(codec_dai,
|
|
SND_SOC_DAIFMT_DSP_A |
|
|
SND_SOC_DAIFMT_IB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret) {
|
|
printk(KERN_ERR "can't set codec DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set cpu DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(cpu_dai,
|
|
SND_SOC_DAIFMT_DSP_A |
|
|
SND_SOC_DAIFMT_IB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set cpu DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set codec system clock\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops zoom2_voice_ops = {
|
|
.hw_params = zoom2_hw_voice_params,
|
|
};
|
|
|
|
/* Zoom2 machine DAPM */
|
|
static const struct snd_soc_dapm_widget zoom2_twl4030_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_LINE("Aux In", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map[] = {
|
|
/* External Mics: MAINMIC, SUBMIC with bias*/
|
|
{"MAINMIC", NULL, "Mic Bias 1"},
|
|
{"SUBMIC", NULL, "Mic Bias 2"},
|
|
{"Mic Bias 1", NULL, "Ext Mic"},
|
|
{"Mic Bias 2", NULL, "Ext Mic"},
|
|
|
|
/* External Speakers: HFL, HFR */
|
|
{"Ext Spk", NULL, "HFL"},
|
|
{"Ext Spk", NULL, "HFR"},
|
|
|
|
/* Headset Stereophone: HSOL, HSOR */
|
|
{"Headset Stereophone", NULL, "HSOL"},
|
|
{"Headset Stereophone", NULL, "HSOR"},
|
|
|
|
/* Headset Mic: HSMIC with bias */
|
|
{"HSMIC", NULL, "Headset Mic Bias"},
|
|
{"Headset Mic Bias", NULL, "Headset Mic"},
|
|
|
|
/* Aux In: AUXL, AUXR */
|
|
{"Aux In", NULL, "AUXL"},
|
|
{"Aux In", NULL, "AUXR"},
|
|
};
|
|
|
|
static int zoom2_twl4030_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
int ret;
|
|
|
|
/* Add Zoom2 specific widgets */
|
|
ret = snd_soc_dapm_new_controls(codec, zoom2_twl4030_dapm_widgets,
|
|
ARRAY_SIZE(zoom2_twl4030_dapm_widgets));
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Set up Zoom2 specific audio path audio_map */
|
|
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
|
|
|
|
/* Zoom2 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");
|
|
snd_soc_dapm_enable_pin(codec, "Aux In");
|
|
|
|
/* TWL4030 not connected pins */
|
|
snd_soc_dapm_nc_pin(codec, "CARKITMIC");
|
|
snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
|
|
snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
|
|
snd_soc_dapm_nc_pin(codec, "EARPIECE");
|
|
snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
|
|
snd_soc_dapm_nc_pin(codec, "PREDRIVER");
|
|
snd_soc_dapm_nc_pin(codec, "CARKITL");
|
|
snd_soc_dapm_nc_pin(codec, "CARKITR");
|
|
|
|
ret = snd_soc_dapm_sync(codec);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int zoom2_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
unsigned short reg;
|
|
|
|
/* Enable voice interface */
|
|
reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
|
|
reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
|
|
codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Digital audio interface glue - connects codec <--> CPU */
|
|
static struct snd_soc_dai_link zoom2_dai[] = {
|
|
{
|
|
.name = "TWL4030 I2S",
|
|
.stream_name = "TWL4030 Audio",
|
|
.cpu_dai_name = "omap-mcbsp-dai.1",
|
|
.codec_dai_name = "twl4030-hifi",
|
|
.platform_name = "omap-pcm-audio",
|
|
.codec_name = "twl4030-codec",
|
|
.init = zoom2_twl4030_init,
|
|
.ops = &zoom2_ops,
|
|
},
|
|
{
|
|
.name = "TWL4030 PCM",
|
|
.stream_name = "TWL4030 Voice",
|
|
.cpu_dai_name = "omap-mcbsp-dai.2",
|
|
.codec_dai_name = "twl4030-voice",
|
|
.platform_name = "omap-pcm-audio",
|
|
.codec_name = "twl4030-codec",
|
|
.init = zoom2_twl4030_voice_init,
|
|
.ops = &zoom2_voice_ops,
|
|
},
|
|
};
|
|
|
|
/* Audio machine driver */
|
|
static struct snd_soc_card snd_soc_zoom2 = {
|
|
.name = "Zoom2",
|
|
.dai_link = zoom2_dai,
|
|
.num_links = ARRAY_SIZE(zoom2_dai),
|
|
};
|
|
|
|
static struct platform_device *zoom2_snd_device;
|
|
|
|
static int __init zoom2_soc_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_omap_zoom2())
|
|
return -ENODEV;
|
|
printk(KERN_INFO "Zoom2 SoC init\n");
|
|
|
|
zoom2_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!zoom2_snd_device) {
|
|
printk(KERN_ERR "Platform device allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
platform_set_drvdata(zoom2_snd_device, &snd_soc_zoom2);
|
|
ret = platform_device_add(zoom2_snd_device);
|
|
if (ret)
|
|
goto err1;
|
|
|
|
BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
|
|
gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
|
|
|
|
BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0);
|
|
gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0);
|
|
|
|
return 0;
|
|
|
|
err1:
|
|
printk(KERN_ERR "Unable to add platform device\n");
|
|
platform_device_put(zoom2_snd_device);
|
|
|
|
return ret;
|
|
}
|
|
module_init(zoom2_soc_init);
|
|
|
|
static void __exit zoom2_soc_exit(void)
|
|
{
|
|
gpio_free(ZOOM2_HEADSET_MUX_GPIO);
|
|
gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);
|
|
|
|
platform_device_unregister(zoom2_snd_device);
|
|
}
|
|
module_exit(zoom2_soc_exit);
|
|
|
|
MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC Zoom2");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|