| /* sound/soc/samsung/jive_wm8750.c |
| * |
| * Copyright 2007,2008 Simtec Electronics |
| * |
| * Based on sound/soc/pxa/spitz.c |
| * Copyright 2005 Wolfson Microelectronics PLC. |
| * Copyright 2005 Openedhand Ltd. |
| * |
| * 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 <sound/soc.h> |
| |
| #include <asm/mach-types.h> |
| |
| #include "s3c2412-i2s.h" |
| #include "../codecs/wm8750.h" |
| |
| static const struct snd_soc_dapm_route audio_map[] = { |
| { "Headphone Jack", NULL, "LOUT1" }, |
| { "Headphone Jack", NULL, "ROUT1" }, |
| { "Internal Speaker", NULL, "LOUT2" }, |
| { "Internal Speaker", NULL, "ROUT2" }, |
| { "LINPUT1", NULL, "Line Input" }, |
| { "RINPUT1", NULL, "Line Input" }, |
| }; |
| |
| static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { |
| SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| SND_SOC_DAPM_SPK("Internal Speaker", NULL), |
| SND_SOC_DAPM_LINE("Line In", NULL), |
| }; |
| |
| static int jive_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; |
| struct s3c_i2sv2_rate_calc div; |
| unsigned int clk = 0; |
| int ret = 0; |
| |
| switch (params_rate(params)) { |
| case 8000: |
| case 16000: |
| case 48000: |
| case 96000: |
| clk = 12288000; |
| break; |
| case 11025: |
| case 22050: |
| case 44100: |
| clk = 11289600; |
| break; |
| } |
| |
| s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params), |
| s3c_i2sv2_get_clock(cpu_dai)); |
| |
| /* set codec DAI configuration */ |
| ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBS_CFS); |
| if (ret < 0) |
| return ret; |
| |
| /* set cpu DAI configuration */ |
| ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBS_CFS); |
| if (ret < 0) |
| return ret; |
| |
| /* set the codec system clock for DAC and ADC */ |
| ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, |
| SND_SOC_CLOCK_IN); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div); |
| if (ret < 0) |
| return ret; |
| |
| ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER, |
| div.clk_div - 1); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops jive_ops = { |
| .hw_params = jive_hw_params, |
| }; |
| |
| static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_codec *codec = rtd->codec; |
| struct snd_soc_dapm_context *dapm = &codec->dapm; |
| int err; |
| |
| /* These endpoints are not being used. */ |
| snd_soc_dapm_nc_pin(dapm, "LINPUT2"); |
| snd_soc_dapm_nc_pin(dapm, "RINPUT2"); |
| snd_soc_dapm_nc_pin(dapm, "LINPUT3"); |
| snd_soc_dapm_nc_pin(dapm, "RINPUT3"); |
| snd_soc_dapm_nc_pin(dapm, "OUT3"); |
| snd_soc_dapm_nc_pin(dapm, "MONO"); |
| |
| /* Add jive specific widgets */ |
| err = snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets, |
| ARRAY_SIZE(wm8750_dapm_widgets)); |
| if (err) { |
| printk(KERN_ERR "%s: failed to add widgets (%d)\n", |
| __func__, err); |
| return err; |
| } |
| |
| snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
| |
| return 0; |
| } |
| |
| static struct snd_soc_dai_link jive_dai = { |
| .name = "wm8750", |
| .stream_name = "WM8750", |
| .cpu_dai_name = "s3c2412-i2s", |
| .codec_dai_name = "wm8750-hifi", |
| .platform_name = "samsung-audio", |
| .codec_name = "wm8750.0-001a", |
| .init = jive_wm8750_init, |
| .ops = &jive_ops, |
| }; |
| |
| /* jive audio machine driver */ |
| static struct snd_soc_card snd_soc_machine_jive = { |
| .name = "Jive", |
| .dai_link = &jive_dai, |
| .num_links = 1, |
| }; |
| |
| static struct platform_device *jive_snd_device; |
| |
| static int __init jive_init(void) |
| { |
| int ret; |
| |
| if (!machine_is_jive()) |
| return 0; |
| |
| printk("JIVE WM8750 Audio support\n"); |
| |
| jive_snd_device = platform_device_alloc("soc-audio", -1); |
| if (!jive_snd_device) |
| return -ENOMEM; |
| |
| platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive); |
| ret = platform_device_add(jive_snd_device); |
| |
| if (ret) |
| platform_device_put(jive_snd_device); |
| |
| return ret; |
| } |
| |
| static void __exit jive_exit(void) |
| { |
| platform_device_unregister(jive_snd_device); |
| } |
| |
| module_init(jive_init); |
| module_exit(jive_exit); |
| |
| MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); |
| MODULE_DESCRIPTION("ALSA SoC Jive Audio support"); |
| MODULE_LICENSE("GPL"); |