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Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kerne…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| /* | ||
| * afeb9260.c -- SoC audio for AFEB9260 | ||
| * | ||
| * Copyright (C) 2009 Sergey Lapin <slapin@ossfans.org> | ||
| * | ||
| * 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/module.h> | ||
| #include <linux/moduleparam.h> | ||
| #include <linux/kernel.h> | ||
| #include <linux/clk.h> | ||
| #include <linux/platform_device.h> | ||
|
|
||
| #include <linux/atmel-ssc.h> | ||
| #include <sound/core.h> | ||
| #include <sound/pcm.h> | ||
| #include <sound/pcm_params.h> | ||
| #include <sound/soc.h> | ||
| #include <sound/soc-dapm.h> | ||
|
|
||
| #include <asm/mach-types.h> | ||
| #include <mach/hardware.h> | ||
| #include <linux/gpio.h> | ||
|
|
||
| #include "../codecs/tlv320aic23.h" | ||
| #include "atmel-pcm.h" | ||
| #include "atmel_ssc_dai.h" | ||
|
|
||
| #define CODEC_CLOCK 12000000 | ||
|
|
||
| static int afeb9260_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->dai->codec_dai; | ||
| struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | ||
| int err; | ||
|
|
||
| /* Set codec DAI configuration */ | ||
| err = snd_soc_dai_set_fmt(codec_dai, | ||
| SND_SOC_DAIFMT_I2S| | ||
| SND_SOC_DAIFMT_NB_IF | | ||
| SND_SOC_DAIFMT_CBM_CFM); | ||
| if (err < 0) { | ||
| printk(KERN_ERR "can't set codec DAI configuration\n"); | ||
| return err; | ||
| } | ||
|
|
||
| /* Set cpu DAI configuration */ | ||
| err = snd_soc_dai_set_fmt(cpu_dai, | ||
| SND_SOC_DAIFMT_I2S | | ||
| SND_SOC_DAIFMT_NB_IF | | ||
| SND_SOC_DAIFMT_CBM_CFM); | ||
| if (err < 0) { | ||
| printk(KERN_ERR "can't set cpu DAI configuration\n"); | ||
| return err; | ||
| } | ||
|
|
||
| /* Set the codec system clock for DAC and ADC */ | ||
| err = | ||
| snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN); | ||
|
|
||
| if (err < 0) { | ||
| printk(KERN_ERR "can't set codec system clock\n"); | ||
| return err; | ||
| } | ||
|
|
||
| return err; | ||
| } | ||
|
|
||
| static struct snd_soc_ops afeb9260_ops = { | ||
| .hw_params = afeb9260_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 afeb9260_tlv320aic23_init(struct snd_soc_codec *codec) | ||
| { | ||
|
|
||
| /* Add afeb9260 specific widgets */ | ||
| snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets, | ||
| ARRAY_SIZE(tlv320aic23_dapm_widgets)); | ||
|
|
||
| /* Set up afeb9260 specific audio path audio_map */ | ||
| snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | ||
|
|
||
| snd_soc_dapm_enable_pin(codec, "Headphone Jack"); | ||
| snd_soc_dapm_enable_pin(codec, "Line In"); | ||
| snd_soc_dapm_enable_pin(codec, "Mic Jack"); | ||
|
|
||
| snd_soc_dapm_sync(codec); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| /* Digital audio interface glue - connects codec <--> CPU */ | ||
| static struct snd_soc_dai_link afeb9260_dai = { | ||
| .name = "TLV320AIC23", | ||
| .stream_name = "AIC23", | ||
| .cpu_dai = &atmel_ssc_dai[0], | ||
| .codec_dai = &tlv320aic23_dai, | ||
| .init = afeb9260_tlv320aic23_init, | ||
| .ops = &afeb9260_ops, | ||
| }; | ||
|
|
||
| /* Audio machine driver */ | ||
| static struct snd_soc_card snd_soc_machine_afeb9260 = { | ||
| .name = "AFEB9260", | ||
| .platform = &atmel_soc_platform, | ||
| .dai_link = &afeb9260_dai, | ||
| .num_links = 1, | ||
| }; | ||
|
|
||
| /* Audio subsystem */ | ||
| static struct snd_soc_device afeb9260_snd_devdata = { | ||
| .card = &snd_soc_machine_afeb9260, | ||
| .codec_dev = &soc_codec_dev_tlv320aic23, | ||
| }; | ||
|
|
||
| static struct platform_device *afeb9260_snd_device; | ||
|
|
||
| static int __init afeb9260_soc_init(void) | ||
| { | ||
| int err; | ||
| struct device *dev; | ||
| struct atmel_ssc_info *ssc_p = afeb9260_dai.cpu_dai->private_data; | ||
| struct ssc_device *ssc = NULL; | ||
|
|
||
| if (!(machine_is_afeb9260())) | ||
| return -ENODEV; | ||
|
|
||
| ssc = ssc_request(0); | ||
| if (IS_ERR(ssc)) { | ||
| printk(KERN_ERR "ASoC: Failed to request SSC 0\n"); | ||
| err = PTR_ERR(ssc); | ||
| ssc = NULL; | ||
| goto err_ssc; | ||
| } | ||
| ssc_p->ssc = ssc; | ||
|
|
||
| afeb9260_snd_device = platform_device_alloc("soc-audio", -1); | ||
| if (!afeb9260_snd_device) { | ||
| printk(KERN_ERR "ASoC: Platform device allocation failed\n"); | ||
| return -ENOMEM; | ||
| } | ||
|
|
||
| platform_set_drvdata(afeb9260_snd_device, &afeb9260_snd_devdata); | ||
| afeb9260_snd_devdata.dev = &afeb9260_snd_device->dev; | ||
| err = platform_device_add(afeb9260_snd_device); | ||
| if (err) | ||
| goto err1; | ||
|
|
||
| dev = &afeb9260_snd_device->dev; | ||
|
|
||
| return 0; | ||
| err1: | ||
| platform_device_del(afeb9260_snd_device); | ||
| platform_device_put(afeb9260_snd_device); | ||
| err_ssc: | ||
| return err; | ||
|
|
||
| } | ||
|
|
||
| static void __exit afeb9260_soc_exit(void) | ||
| { | ||
| platform_device_unregister(afeb9260_snd_device); | ||
| } | ||
|
|
||
| module_init(afeb9260_soc_init); | ||
| module_exit(afeb9260_soc_exit); | ||
|
|
||
| MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>"); | ||
| MODULE_DESCRIPTION("ALSA SoC for AFEB9260"); | ||
| MODULE_LICENSE("GPL"); | ||
|
|
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