diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/sh/migor.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/sh/migor.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/ANDROID_3.4.5/sound/soc/sh/migor.c b/ANDROID_3.4.5/sound/soc/sh/migor.c deleted file mode 100644 index 8526e1ed..00000000 --- a/ANDROID_3.4.5/sound/soc/sh/migor.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - * ALSA SoC driver for Migo-R - * - * Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de> - * - * 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. - */ - -#include <linux/clkdev.h> -#include <linux/device.h> -#include <linux/firmware.h> -#include <linux/module.h> - -#include <asm/clock.h> - -#include <cpu/sh7722.h> - -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/soc.h> - -#include "../codecs/wm8978.h" -#include "siu.h" - -/* Default 8000Hz sampling frequency */ -static unsigned long codec_freq = 8000 * 512; - -static unsigned int use_count; - -/* External clock, sourced from the codec at the SIUMCKB pin */ -static unsigned long siumckb_recalc(struct clk *clk) -{ - return codec_freq; -} - -static struct sh_clk_ops siumckb_clk_ops = { - .recalc = siumckb_recalc, -}; - -static struct clk siumckb_clk = { - .ops = &siumckb_clk_ops, - .rate = 0, /* initialised at run-time */ -}; - -static struct clk_lookup *siumckb_lookup; - -static int migor_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; - int ret; - unsigned int rate = params_rate(params); - - ret = snd_soc_dai_set_sysclk(codec_dai, WM8978_PLL, 13000000, - SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_clkdiv(codec_dai, WM8978_OPCLKRATE, rate * 512); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_NB_IF | - SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_fmt(rtd->cpu_dai, SND_SOC_DAIFMT_NB_IF | - SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS); - if (ret < 0) - return ret; - - codec_freq = rate * 512; - /* - * This propagates the parent frequency change to children and - * recalculates the frequency table - */ - clk_set_rate(&siumckb_clk, codec_freq); - dev_dbg(codec_dai->dev, "%s: configure %luHz\n", __func__, codec_freq); - - ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, SIU_CLKB_EXT, - codec_freq / 2, SND_SOC_CLOCK_IN); - - if (!ret) - use_count++; - - return ret; -} - -static int migor_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *codec_dai = rtd->codec_dai; - - if (use_count) { - use_count--; - - if (!use_count) - snd_soc_dai_set_sysclk(codec_dai, WM8978_PLL, 0, - SND_SOC_CLOCK_IN); - } else { - dev_dbg(codec_dai->dev, "Unbalanced hw_free!\n"); - } - - return 0; -} - -static struct snd_soc_ops migor_dai_ops = { - .hw_params = migor_hw_params, - .hw_free = migor_hw_free, -}; - -static const struct snd_soc_dapm_widget migor_dapm_widgets[] = { - SND_SOC_DAPM_HP("Headphone", NULL), - SND_SOC_DAPM_MIC("Onboard Microphone", NULL), - SND_SOC_DAPM_MIC("External Microphone", NULL), -}; - -static const struct snd_soc_dapm_route audio_map[] = { - /* Headphone output connected to LHP/RHP, enable OUT4 for VMID */ - { "Headphone", NULL, "OUT4 VMID" }, - { "OUT4 VMID", NULL, "LHP" }, - { "OUT4 VMID", NULL, "RHP" }, - - /* On-board microphone */ - { "RMICN", NULL, "Mic Bias" }, - { "RMICP", NULL, "Mic Bias" }, - { "Mic Bias", NULL, "Onboard Microphone" }, - - /* External microphone */ - { "LMICN", NULL, "Mic Bias" }, - { "LMICP", NULL, "Mic Bias" }, - { "Mic Bias", NULL, "External Microphone" }, -}; - -static int migor_dai_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, migor_dapm_widgets, - ARRAY_SIZE(migor_dapm_widgets)); - - snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); - - return 0; -} - -/* migor digital audio interface glue - connects codec <--> CPU */ -static struct snd_soc_dai_link migor_dai = { - .name = "wm8978", - .stream_name = "WM8978", - .cpu_dai_name = "siu-i2s-dai", - .codec_dai_name = "wm8978-hifi", - .platform_name = "siu-pcm-audio", - .codec_name = "wm8978.0-001a", - .ops = &migor_dai_ops, - .init = migor_dai_init, -}; - -/* migor audio machine driver */ -static struct snd_soc_card snd_soc_migor = { - .name = "Migo-R", - .owner = THIS_MODULE, - .dai_link = &migor_dai, - .num_links = 1, -}; - -static struct platform_device *migor_snd_device; - -static int __init migor_init(void) -{ - int ret; - - ret = clk_register(&siumckb_clk); - if (ret < 0) - return ret; - - siumckb_lookup = clkdev_alloc(&siumckb_clk, "siumckb_clk", NULL); - if (!siumckb_lookup) { - ret = -ENOMEM; - goto eclkdevalloc; - } - clkdev_add(siumckb_lookup); - - /* Port number used on this machine: port B */ - migor_snd_device = platform_device_alloc("soc-audio", 1); - if (!migor_snd_device) { - ret = -ENOMEM; - goto epdevalloc; - } - - platform_set_drvdata(migor_snd_device, &snd_soc_migor); - - ret = platform_device_add(migor_snd_device); - if (ret) - goto epdevadd; - - return 0; - -epdevadd: - platform_device_put(migor_snd_device); -epdevalloc: - clkdev_drop(siumckb_lookup); -eclkdevalloc: - clk_unregister(&siumckb_clk); - return ret; -} - -static void __exit migor_exit(void) -{ - clkdev_drop(siumckb_lookup); - clk_unregister(&siumckb_clk); - platform_device_unregister(migor_snd_device); -} - -module_init(migor_init); -module_exit(migor_exit); - -MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); -MODULE_DESCRIPTION("ALSA SoC Migor"); -MODULE_LICENSE("GPL v2"); |