138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/*
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* mx27vis-aic32x4.c
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*
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* Copyright 2011 Vista Silicon S.L.
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*
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* Author: Javier Martin <javier.martin@vista-silicon.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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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/device.h>
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#include <linux/i2c.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/audmux.h>
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#include "../codecs/tlv320aic32x4.h"
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#include "imx-ssi.h"
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static int mx27vis_aic32x4_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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u32 dai_format;
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dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM;
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/* set codec DAI configuration */
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snd_soc_dai_set_fmt(codec_dai, dai_format);
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/* set cpu DAI configuration */
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snd_soc_dai_set_fmt(cpu_dai, dai_format);
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ret = snd_soc_dai_set_sysclk(codec_dai, 0,
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25000000, SND_SOC_CLOCK_OUT);
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if (ret) {
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pr_err("%s: failed setting codec sysclk\n", __func__);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
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SND_SOC_CLOCK_IN);
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if (ret) {
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pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\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 mx27vis_aic32x4_snd_ops = {
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.hw_params = mx27vis_aic32x4_hw_params,
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};
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static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
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.name = "tlv320aic32x4",
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.stream_name = "TLV320AIC32X4",
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.codec_dai_name = "tlv320aic32x4-hifi",
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.platform_name = "imx-pcm-audio.0",
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.codec_name = "tlv320aic32x4.0-0018",
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.cpu_dai_name = "imx-ssi.0",
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.ops = &mx27vis_aic32x4_snd_ops,
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};
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static struct snd_soc_card mx27vis_aic32x4 = {
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.name = "visstrim_m10-audio",
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.dai_link = &mx27vis_aic32x4_dai,
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.num_links = 1,
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};
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static struct platform_device *mx27vis_aic32x4_snd_device;
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static int __init mx27vis_aic32x4_init(void)
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{
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int ret;
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mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
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if (!mx27vis_aic32x4_snd_device)
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return -ENOMEM;
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platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
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ret = platform_device_add(mx27vis_aic32x4_snd_device);
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if (ret) {
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printk(KERN_ERR "ASoC: Platform device allocation failed\n");
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platform_device_put(mx27vis_aic32x4_snd_device);
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}
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/* Connect SSI0 as clock slave to SSI1 external pins */
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mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
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MXC_AUDMUX_V1_PCR_SYN |
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MXC_AUDMUX_V1_PCR_TFSDIR |
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MXC_AUDMUX_V1_PCR_TCLKDIR |
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MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
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MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
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);
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mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
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MXC_AUDMUX_V1_PCR_SYN |
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MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
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);
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return ret;
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}
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static void __exit mx27vis_aic32x4_exit(void)
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{
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platform_device_unregister(mx27vis_aic32x4_snd_device);
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}
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module_init(mx27vis_aic32x4_init);
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module_exit(mx27vis_aic32x4_exit);
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MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
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MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
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MODULE_LICENSE("GPL");
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