ASoC: AFEB9260 driver
ASoC driver for AT91SAM9260-based AFEB9260 board Signed-off-by: Sergey Lapin <slapin@ossfans.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Sergey Lapin
Mark Brown
parent
bec4c99e86
commit
b4df0a6c9d
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@ -41,3 +41,11 @@ config SND_AT32_SOC_PLAYPAQ_SLAVE
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and FRAME signals on the PlayPaq. Unless you want to play
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with the AT32 as the SSC master, you probably want to say N here,
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as this will give you better sound quality.
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config SND_AT91_SOC_AFEB9260
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tristate "SoC Audio support for AFEB9260 board"
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depends on ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
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select SND_ATMEL_SOC_SSC
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select SND_SOC_TLV320AIC23
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help
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Say Y here to support sound on AFEB9260 board.
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@ -13,3 +13,4 @@ snd-soc-playpaq-objs := playpaq_wm8510.o
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obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
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obj-$(CONFIG_SND_AT32_SOC_PLAYPAQ) += snd-soc-playpaq.o
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obj-$(CONFIG_SND_AT91_SOC_AFEB9260) += snd-soc-afeb9260.o
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@ -0,0 +1,203 @@
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/*
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* afeb9260.c -- SoC audio for AFEB9260
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*
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* Copyright (C) 2009 Sergey Lapin <slapin@ossfans.org>
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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/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/atmel-ssc.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <linux/gpio.h>
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#include "../codecs/tlv320aic23.h"
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#include "atmel-pcm.h"
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#include "atmel_ssc_dai.h"
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#define CODEC_CLOCK 12000000
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static int afeb9260_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->dai->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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int err;
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/* Set codec DAI configuration */
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err = snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_I2S|
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SND_SOC_DAIFMT_NB_IF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (err < 0) {
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printk(KERN_ERR "can't set codec DAI configuration\n");
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return err;
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}
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/* Set cpu DAI configuration */
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err = snd_soc_dai_set_fmt(cpu_dai,
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SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_IF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (err < 0) {
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printk(KERN_ERR "can't set cpu DAI configuration\n");
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return err;
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}
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/* Set the codec system clock for DAC and ADC */
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err =
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snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);
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if (err < 0) {
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printk(KERN_ERR "can't set codec system clock\n");
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return err;
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}
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return err;
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}
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static struct snd_soc_ops afeb9260_ops = {
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.hw_params = afeb9260_hw_params,
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};
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static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Headphone Jack", NULL, "LHPOUT"},
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{"Headphone Jack", NULL, "RHPOUT"},
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{"LLINEIN", NULL, "Line In"},
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{"RLINEIN", NULL, "Line In"},
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{"MICIN", NULL, "Mic Jack"},
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};
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static int afeb9260_tlv320aic23_init(struct snd_soc_codec *codec)
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{
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/* Add afeb9260 specific widgets */
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snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
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ARRAY_SIZE(tlv320aic23_dapm_widgets));
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/* Set up afeb9260 specific audio path audio_map */
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snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
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snd_soc_dapm_enable_pin(codec, "Headphone Jack");
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snd_soc_dapm_enable_pin(codec, "Line In");
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snd_soc_dapm_enable_pin(codec, "Mic Jack");
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snd_soc_dapm_sync(codec);
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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 afeb9260_dai = {
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.name = "TLV320AIC23",
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.stream_name = "AIC23",
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.cpu_dai = &atmel_ssc_dai[0],
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.codec_dai = &tlv320aic23_dai,
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.init = afeb9260_tlv320aic23_init,
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.ops = &afeb9260_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_machine_afeb9260 = {
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.name = "AFEB9260",
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.platform = &atmel_soc_platform,
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.dai_link = &afeb9260_dai,
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.num_links = 1,
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};
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/* Audio subsystem */
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static struct snd_soc_device afeb9260_snd_devdata = {
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.card = &snd_soc_machine_afeb9260,
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.codec_dev = &soc_codec_dev_tlv320aic23,
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};
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static struct platform_device *afeb9260_snd_device;
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static int __init afeb9260_soc_init(void)
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{
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int err;
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struct device *dev;
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struct atmel_ssc_info *ssc_p = afeb9260_dai.cpu_dai->private_data;
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struct ssc_device *ssc = NULL;
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if (!(machine_is_afeb9260()))
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return -ENODEV;
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ssc = ssc_request(0);
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if (IS_ERR(ssc)) {
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printk(KERN_ERR "ASoC: Failed to request SSC 0\n");
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err = PTR_ERR(ssc);
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ssc = NULL;
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goto err_ssc;
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}
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ssc_p->ssc = ssc;
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afeb9260_snd_device = platform_device_alloc("soc-audio", -1);
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if (!afeb9260_snd_device) {
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printk(KERN_ERR "ASoC: Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(afeb9260_snd_device, &afeb9260_snd_devdata);
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afeb9260_snd_devdata.dev = &afeb9260_snd_device->dev;
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err = platform_device_add(afeb9260_snd_device);
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if (err)
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goto err1;
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dev = &afeb9260_snd_device->dev;
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return 0;
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err1:
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platform_device_del(afeb9260_snd_device);
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platform_device_put(afeb9260_snd_device);
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err_ssc:
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return err;
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}
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static void __exit afeb9260_soc_exit(void)
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{
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platform_device_unregister(afeb9260_snd_device);
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}
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module_init(afeb9260_soc_init);
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module_exit(afeb9260_soc_exit);
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MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>");
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MODULE_DESCRIPTION("ALSA SoC for AFEB9260");
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MODULE_LICENSE("GPL");
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