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143 lines
3.3 KiB
143 lines
3.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Copyright 2007,2008 Simtec Electronics |
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// |
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// Based on sound/soc/pxa/spitz.c |
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// Copyright 2005 Wolfson Microelectronics PLC. |
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// Copyright 2005 Openedhand Ltd. |
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#include <linux/module.h> |
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#include <sound/soc.h> |
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#include <asm/mach-types.h> |
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#include "s3c2412-i2s.h" |
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#include "../codecs/wm8750.h" |
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static const struct snd_soc_dapm_route audio_map[] = { |
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{ "Headphone Jack", NULL, "LOUT1" }, |
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{ "Headphone Jack", NULL, "ROUT1" }, |
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{ "Internal Speaker", NULL, "LOUT2" }, |
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{ "Internal Speaker", NULL, "ROUT2" }, |
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{ "LINPUT1", NULL, "Line Input" }, |
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{ "RINPUT1", NULL, "Line Input" }, |
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}; |
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static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_SPK("Internal Speaker", NULL), |
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SND_SOC_DAPM_LINE("Line In", NULL), |
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}; |
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static int jive_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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struct s3c_i2sv2_rate_calc div; |
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unsigned int clk = 0; |
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int ret = 0; |
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switch (params_rate(params)) { |
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case 8000: |
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case 16000: |
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case 48000: |
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case 96000: |
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clk = 12288000; |
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break; |
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case 11025: |
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case 22050: |
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case 44100: |
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clk = 11289600; |
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break; |
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} |
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s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params), |
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s3c_i2sv2_get_clock(cpu_dai)); |
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/* set the codec system clock for DAC and ADC */ |
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER, |
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div.clk_div - 1); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static const struct snd_soc_ops jive_ops = { |
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.hw_params = jive_hw_params, |
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}; |
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SND_SOC_DAILINK_DEFS(wm8750, |
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DAILINK_COMP_ARRAY(COMP_CPU("s3c2412-i2s")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001a", "wm8750-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("s3c2412-i2s"))); |
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static struct snd_soc_dai_link jive_dai = { |
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.name = "wm8750", |
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.stream_name = "WM8750", |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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.ops = &jive_ops, |
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SND_SOC_DAILINK_REG(wm8750), |
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}; |
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/* jive audio machine driver */ |
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static struct snd_soc_card snd_soc_machine_jive = { |
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.name = "Jive", |
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.owner = THIS_MODULE, |
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.dai_link = &jive_dai, |
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.num_links = 1, |
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.dapm_widgets = wm8750_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), |
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.dapm_routes = audio_map, |
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.num_dapm_routes = ARRAY_SIZE(audio_map), |
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.fully_routed = true, |
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}; |
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static struct platform_device *jive_snd_device; |
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static int __init jive_init(void) |
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{ |
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int ret; |
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if (!machine_is_jive()) |
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return 0; |
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printk("JIVE WM8750 Audio support\n"); |
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jive_snd_device = platform_device_alloc("soc-audio", -1); |
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if (!jive_snd_device) |
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return -ENOMEM; |
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platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive); |
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ret = platform_device_add(jive_snd_device); |
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if (ret) |
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platform_device_put(jive_snd_device); |
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return ret; |
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} |
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static void __exit jive_exit(void) |
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{ |
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platform_device_unregister(jive_snd_device); |
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} |
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module_init(jive_init); |
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module_exit(jive_exit); |
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MODULE_AUTHOR("Ben Dooks <[email protected]>"); |
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MODULE_DESCRIPTION("ALSA SoC Jive Audio support"); |
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MODULE_LICENSE("GPL");
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