| /* |
| * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module |
| * |
| * Copyright (C) 2008 Bluewater Systems Ltd |
| * Author: Ryan Mallon |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| */ |
| |
| #include <linux/platform_device.h> |
| #include <linux/module.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| |
| #include <asm/mach-types.h> |
| #include <mach/hardware.h> |
| |
| #include "../codecs/tlv320aic23.h" |
| #include "ep93xx-pcm.h" |
| |
| #define CODEC_CLOCK 5644800 |
| |
| static int snappercl15_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 err; |
| |
| err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_IF | |
| SND_SOC_DAIFMT_CBS_CFS); |
| |
| err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_IF | |
| SND_SOC_DAIFMT_CBS_CFS); |
| if (err) |
| return err; |
| |
| err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, |
| SND_SOC_CLOCK_IN); |
| if (err) |
| return err; |
| |
| err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, |
| SND_SOC_CLOCK_OUT); |
| if (err) |
| return err; |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops snappercl15_ops = { |
| .hw_params = snappercl15_hw_params, |
| }; |
| |
| static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { |
| SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| SND_SOC_DAPM_LINE("Line In", NULL), |
| SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| }; |
| |
| static const struct snd_soc_dapm_route audio_map[] = { |
| {"Headphone Jack", NULL, "LHPOUT"}, |
| {"Headphone Jack", NULL, "RHPOUT"}, |
| |
| {"LLINEIN", NULL, "Line In"}, |
| {"RLINEIN", NULL, "Line In"}, |
| |
| {"MICIN", NULL, "Mic Jack"}, |
| }; |
| |
| static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_codec *codec = rtd->codec; |
| struct snd_soc_dapm_context *dapm = &codec->dapm; |
| |
| snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets, |
| ARRAY_SIZE(tlv320aic23_dapm_widgets)); |
| |
| snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
| return 0; |
| } |
| |
| static struct snd_soc_dai_link snappercl15_dai = { |
| .name = "tlv320aic23", |
| .stream_name = "AIC23", |
| .cpu_dai_name = "ep93xx-i2s", |
| .codec_dai_name = "tlv320aic23-hifi", |
| .codec_name = "tlv320aic23-codec.0-001a", |
| .platform_name = "ep93xx-pcm-audio", |
| .init = snappercl15_tlv320aic23_init, |
| .ops = &snappercl15_ops, |
| }; |
| |
| static struct snd_soc_card snd_soc_snappercl15 = { |
| .name = "Snapper CL15", |
| .dai_link = &snappercl15_dai, |
| .num_links = 1, |
| }; |
| |
| static int __devinit snappercl15_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card = &snd_soc_snappercl15; |
| int ret; |
| |
| ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, |
| EP93XX_SYSCON_I2SCLKDIV_ORIDE | |
| EP93XX_SYSCON_I2SCLKDIV_SPOL); |
| if (ret) |
| return ret; |
| |
| card->dev = &pdev->dev; |
| |
| ret = snd_soc_register_card(card); |
| if (ret) { |
| dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
| ret); |
| ep93xx_i2s_release(); |
| } |
| |
| return ret; |
| } |
| |
| static int __devexit snappercl15_remove(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card = platform_get_drvdata(pdev); |
| |
| snd_soc_unregister_card(card); |
| ep93xx_i2s_release(); |
| |
| return 0; |
| } |
| |
| static struct platform_driver snappercl15_driver = { |
| .driver = { |
| .name = "snappercl15-audio", |
| .owner = THIS_MODULE, |
| }, |
| .probe = snappercl15_probe, |
| .remove = __devexit_p(snappercl15_remove), |
| }; |
| |
| module_platform_driver(snappercl15_driver); |
| |
| MODULE_AUTHOR("Ryan Mallon"); |
| MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:snappercl15-audio"); |