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![Lars-Peter Clausen](/assets/img/avatar_default.png)
The dapm field of the snd_soc_codec struct will eventually be removed (replaced with the DAPM context from the component embedded inside the CODEC). Replace its usage with the card's DAPM context. The idea is that DAPM is hierarchical and with the card at the root it is possible to access widgets from other contexts through the card context. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
203 lines
5.3 KiB
C
203 lines
5.3 KiB
C
/*
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* smdk_wm8994.c
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include "../codecs/wm8994.h"
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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/*
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* Default CFG switch settings to use this driver:
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* SMDKV310: CFG5-1000, CFG7-111111
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*/
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/*
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* Configure audio route as :-
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* $ amixer sset 'DAC1' on,on
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* $ amixer sset 'Right Headphone Mux' 'DAC'
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* $ amixer sset 'Left Headphone Mux' 'DAC'
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* $ amixer sset 'DAC1R Mixer AIF1.1' on
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* $ amixer sset 'DAC1L Mixer AIF1.1' on
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* $ amixer sset 'IN2L' on
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* $ amixer sset 'IN2L PGA IN2LN' on
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* $ amixer sset 'MIXINL IN2L' on
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* $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
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* $ amixer sset 'IN2R' on
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* $ amixer sset 'IN2R PGA IN2RN' on
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* $ amixer sset 'MIXINR IN2R' on
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* $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
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*/
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/* SMDK has a 16.934MHZ crystal attached to WM8994 */
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#define SMDK_WM8994_FREQ 16934000
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struct smdk_wm8994_data {
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int mclk1_rate;
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};
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/* Default SMDKs */
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static struct smdk_wm8994_data smdk_board_data = {
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.mclk1_rate = SMDK_WM8994_FREQ,
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};
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static int smdk_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 = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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unsigned int pll_out;
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int ret;
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/* AIF1CLK should be >=3MHz for optimal performance */
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if (params_width(params) == 24)
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pll_out = params_rate(params) * 384;
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else if (params_rate(params) == 8000 || params_rate(params) == 11025)
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pll_out = params_rate(params) * 512;
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else
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pll_out = params_rate(params) * 256;
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ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
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SMDK_WM8994_FREQ, pll_out);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
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pll_out, SND_SOC_CLOCK_IN);
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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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/*
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* SMDK WM8994 DAI operations.
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*/
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static struct snd_soc_ops smdk_ops = {
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.hw_params = smdk_hw_params,
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};
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static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
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/* Other pins NC */
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snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
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snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
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snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
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snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
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snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
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snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
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snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
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snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
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snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
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snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
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snd_soc_dapm_nc_pin(dapm, "IN1LP");
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snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
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snd_soc_dapm_nc_pin(dapm, "IN1RP");
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snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
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return 0;
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}
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static struct snd_soc_dai_link smdk_dai[] = {
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{ /* Primary DAI i/f */
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.name = "WM8994 AIF1",
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.stream_name = "Pri_Dai",
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.cpu_dai_name = "samsung-i2s.0",
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.codec_dai_name = "wm8994-aif1",
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.platform_name = "samsung-i2s.0",
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.codec_name = "wm8994-codec",
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.init = smdk_wm8994_init_paiftx,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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.ops = &smdk_ops,
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}, { /* Sec_Fifo Playback i/f */
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.name = "Sec_FIFO TX",
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.stream_name = "Sec_Dai",
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.cpu_dai_name = "samsung-i2s-sec",
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.codec_dai_name = "wm8994-aif1",
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.platform_name = "samsung-i2s-sec",
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.codec_name = "wm8994-codec",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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.ops = &smdk_ops,
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},
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};
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static struct snd_soc_card smdk = {
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.name = "SMDK-I2S",
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.owner = THIS_MODULE,
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.dai_link = smdk_dai,
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.num_links = ARRAY_SIZE(smdk_dai),
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};
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static const struct of_device_id samsung_wm8994_of_match[] = {
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{ .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
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{},
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};
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MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
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static int smdk_audio_probe(struct platform_device *pdev)
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{
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int ret;
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struct device_node *np = pdev->dev.of_node;
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struct snd_soc_card *card = &smdk;
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struct smdk_wm8994_data *board;
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const struct of_device_id *id;
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card->dev = &pdev->dev;
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board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
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if (!board)
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return -ENOMEM;
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if (np) {
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smdk_dai[0].cpu_dai_name = NULL;
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smdk_dai[0].cpu_of_node = of_parse_phandle(np,
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"samsung,i2s-controller", 0);
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if (!smdk_dai[0].cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'samsung,i2s-controller' missing or invalid\n");
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ret = -EINVAL;
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}
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smdk_dai[0].platform_name = NULL;
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smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
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}
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id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
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if (id)
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*board = *((struct smdk_wm8994_data *)id->data);
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platform_set_drvdata(pdev, board);
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret)
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dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
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return ret;
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}
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static struct platform_driver smdk_audio_driver = {
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.driver = {
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.name = "smdk-audio-wm8994",
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.of_match_table = of_match_ptr(samsung_wm8994_of_match),
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.pm = &snd_soc_pm_ops,
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},
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.probe = smdk_audio_probe,
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};
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module_platform_driver(smdk_audio_driver);
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MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:smdk-audio-wm8994");
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