mirror of https://gitee.com/openkylin/linux.git
ALSA: ASoC: Add support for osk5912
Adding ASoC machine driver for osk5912 Signed-off-by: Arun KS <arunks@mistralsolutions.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arun KS
Takashi Iwai
parent
c1f27190a7
commit
17f9ecf34a
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@ -13,3 +13,11 @@ config SND_OMAP_SOC_N810
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select SND_SOC_TLV320AIC3X
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help
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Say Y if you want to add support for SoC audio on Nokia N810.
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config SND_OMAP_SOC_OSK5912
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tristate "SoC Audio support for omap osk5912"
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depends on SND_OMAP_SOC && MACH_OMAP_OSK
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select SND_OMAP_SOC_MCBSP
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select SND_SOC_TLV320AIC23
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help
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Say Y if you want to add support for SoC audio on osk5912.
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@ -7,5 +7,7 @@ obj-$(CONFIG_SND_OMAP_SOC_MCBSP) += snd-soc-omap-mcbsp.o
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# OMAP Machine Support
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snd-soc-n810-objs := n810.o
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snd-soc-osk5912-objs := osk5912.o
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obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
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obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
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@ -0,0 +1,232 @@
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/*
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* osk5912.c -- SoC audio for OSK 5912
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*
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* Copyright (C) 2008 Mistral Solutions
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*
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* Contact: Arun KS <arunks@mistralsolutions.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/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 <mach/mcbsp.h>
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#include "omap-mcbsp.h"
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#include "omap-pcm.h"
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#include "../codecs/tlv320aic23.h"
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#define CODEC_CLOCK 12000000
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static struct clk *tlv320aic23_mclk;
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static int osk_startup(struct snd_pcm_substream *substream)
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{
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return clk_enable(tlv320aic23_mclk);
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}
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static void osk_shutdown(struct snd_pcm_substream *substream)
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{
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clk_disable(tlv320aic23_mclk);
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}
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static int osk_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_DSP_A |
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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_DSP_A |
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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 osk_ops = {
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.startup = osk_startup,
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.hw_params = osk_hw_params,
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.shutdown = osk_shutdown,
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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 osk_tlv320aic23_init(struct snd_soc_codec *codec)
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{
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/* Add osk5912 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 osk5912 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 osk_dai = {
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.name = "TLV320AIC23",
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.stream_name = "AIC23",
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.cpu_dai = &omap_mcbsp_dai[0],
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.codec_dai = &tlv320aic23_dai,
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.init = osk_tlv320aic23_init,
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.ops = &osk_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_machine snd_soc_machine_osk = {
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.name = "OSK5912",
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.dai_link = &osk_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 osk_snd_devdata = {
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.machine = &snd_soc_machine_osk,
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.platform = &omap_soc_platform,
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.codec_dev = &soc_codec_dev_tlv320aic23,
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};
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static struct platform_device *osk_snd_device;
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static int __init osk_soc_init(void)
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{
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int err;
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u32 curRate;
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struct device *dev;
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if (!(machine_is_omap_osk()))
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return -ENODEV;
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osk_snd_device = platform_device_alloc("soc-audio", -1);
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if (!osk_snd_device)
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return -ENOMEM;
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platform_set_drvdata(osk_snd_device, &osk_snd_devdata);
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osk_snd_devdata.dev = &osk_snd_device->dev;
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*(unsigned int *)osk_dai.cpu_dai->private_data = 0; /* McBSP1 */
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err = platform_device_add(osk_snd_device);
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if (err)
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goto err1;
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dev = &osk_snd_device->dev;
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tlv320aic23_mclk = clk_get(dev, "mclk");
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if (IS_ERR(tlv320aic23_mclk)) {
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printk(KERN_ERR "Could not get mclk clock\n");
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return -ENODEV;
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}
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if (clk_get_usecount(tlv320aic23_mclk) > 0) {
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/* MCLK is already in use */
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printk(KERN_WARNING
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"MCLK in use at %d Hz. We change it to %d Hz\n",
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(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
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}
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/*
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* Configure 12 MHz output on MCLK.
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*/
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curRate = (uint) clk_get_rate(tlv320aic23_mclk);
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if (curRate != CODEC_CLOCK) {
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if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
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printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
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err = -ECANCELED;
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goto err1;
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}
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}
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printk(KERN_INFO "MCLK = %d [%d], usecount = %d\n",
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(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK,
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clk_get_usecount(tlv320aic23_mclk));
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return 0;
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err1:
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clk_put(tlv320aic23_mclk);
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platform_device_del(osk_snd_device);
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platform_device_put(osk_snd_device);
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return err;
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}
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static void __exit osk_soc_exit(void)
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{
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platform_device_unregister(osk_snd_device);
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}
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module_init(osk_soc_init);
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module_exit(osk_soc_exit);
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MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
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MODULE_DESCRIPTION("ALSA SoC OSK 5912");
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MODULE_LICENSE("GPL");
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