This patch is adding support for hp t5325 thin clients. There's a alc5623 codec connected to the i2s interface.
Signed-off-by: Arnaud Patard arnaud.patard@rtp-net.org
Index: sound-2.6/sound/soc/kirkwood/Kconfig =================================================================== --- sound-2.6.orig/sound/soc/kirkwood/Kconfig 2010-10-13 19:47:43.000000000 +0200 +++ sound-2.6/sound/soc/kirkwood/Kconfig 2010-10-13 19:52:16.000000000 +0200 @@ -18,3 +18,12 @@ Say Y if you want to add support for SoC audio on Openrd Client.
+config SND_KIRKWOOD_SOC_T5325 + tristate "SoC Audio support for HP t5325" + depends on SND_KIRKWOOD_SOC && MACH_T5325 + select SND_KIRKWOOD_SOC_I2S + select SND_SOC_ALC5623 + help + Say Y if you want to add support for SoC audio on + the HP t5325 thin client. + Index: sound-2.6/sound/soc/kirkwood/Makefile =================================================================== --- sound-2.6.orig/sound/soc/kirkwood/Makefile 2010-10-13 19:47:43.000000000 +0200 +++ sound-2.6/sound/soc/kirkwood/Makefile 2010-10-13 19:52:16.000000000 +0200 @@ -5,5 +5,7 @@ obj-$(CONFIG_SND_KIRKWOOD_SOC_I2S) += snd-soc-kirkwood-i2s.o
snd-soc-openrd-objs := kirkwood-openrd.o +snd-soc-t5325-objs := kirkwood-t5325.o
obj-$(CONFIG_SND_KIRKWOOD_SOC_OPENRD) += snd-soc-openrd.o +obj-$(CONFIG_SND_KIRKWOOD_SOC_T5325) += snd-soc-t5325.o Index: sound-2.6/sound/soc/kirkwood/kirkwood-t5325.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ sound-2.6/sound/soc/kirkwood/kirkwood-t5325.c 2010-10-13 19:52:16.000000000 +0200 @@ -0,0 +1,141 @@ +/* + * kirkwood-t5325.c + * + * (c) 2010 Arnaud Patard arnaud.patard@rtp-net.org + * + * 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/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <mach/kirkwood.h> +#include <plat/audio.h> +#include <asm/mach-types.h> +#include "../codecs/alc5623.h" + +static int t5325_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 ret; + unsigned int freq, fmt; + + fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS; + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_fmt(codec_dai, fmt); + if (ret < 0) + return ret; + + freq = params_rate(params) * 256; + + return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); + +} + +static struct snd_soc_ops t5325_ops = { + .hw_params = t5325_hw_params, +}; + +static const struct snd_soc_dapm_widget t5325_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), +}; + +static const struct snd_soc_dapm_route t5325_route[] = { + { "Headphone Jack", NULL, "HPL" }, + { "Headphone Jack", NULL, "HPR" }, + + {"Speaker", NULL, "SPKOUT"}, + {"Speaker", NULL, "SPKOUTN"}, + + { "MIC1", NULL, "Mic Jack" }, + { "MIC2", NULL, "Mic Jack" }, +}; + +static int t5325_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_dapm_new_controls(codec, t5325_dapm_widgets, + ARRAY_SIZE(t5325_dapm_widgets)); + + snd_soc_dapm_add_routes(codec, t5325_route, ARRAY_SIZE(t5325_route)); + + snd_soc_dapm_enable_pin(codec, "Mic Jack"); + snd_soc_dapm_enable_pin(codec, "Headphone Jack"); + snd_soc_dapm_enable_pin(codec, "Speaker"); + + snd_soc_dapm_sync(codec); + + return 0; +} + +static struct snd_soc_dai_link t5325_dai[] = { +{ + .name = "ALC5621", + .stream_name = "ALC5621 HiFi", + .cpu_dai_name = "kirkwood-i2s", + .platform_name = "kirkwood-pcm-audio", + .codec_dai_name = "alc5621-hifi", + .codec_name = "alc562x-codec.0-001a", + .ops = &t5325_ops, + .init = t5325_dai_init, +}, +}; + + +static struct snd_soc_card t5325 = { + .name = "t5325", + .dai_link = t5325_dai, + .num_links = ARRAY_SIZE(t5325_dai), +}; + +static struct platform_device *t5325_snd_device; + +static int __init t5325_init(void) +{ + int ret; + + if (!machine_is_t5325()) + return 0; + + t5325_snd_device = platform_device_alloc("soc-audio", -1); + if (!t5325_snd_device) + return -ENOMEM; + + platform_set_drvdata(t5325_snd_device, + &t5325); + + ret = platform_device_add(t5325_snd_device); + if (ret) { + printk(KERN_ERR "%s: platform_device_add failed\n", __func__); + platform_device_put(t5325_snd_device); + } + + return ret; +} +module_init(t5325_init); + +static void __exit t5325_exit(void) +{ + platform_device_unregister(t5325_snd_device); +} +module_exit(t5325_exit); + +MODULE_AUTHOR("Arnaud Patard arnaud.patard@rtp-net.org"); +MODULE_DESCRIPTION("ALSA SoC t5325 audio client"); +MODULE_LICENSE("GPL");