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200 lines
5.2 KiB
200 lines
5.2 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright 2011 Freescale Semiconductor, Inc. |
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*/ |
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#include <linux/module.h> |
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#include <linux/device.h> |
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#include <linux/of.h> |
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#include <linux/of_device.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/soc.h> |
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#include <sound/jack.h> |
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#include <sound/soc-dapm.h> |
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#include "../codecs/sgtl5000.h" |
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#include "mxs-saif.h" |
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static int mxs_sgtl5000_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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unsigned int rate = params_rate(params); |
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u32 mclk; |
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int ret; |
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/* sgtl5000 does not support 512*rate when in 96000 fs */ |
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switch (rate) { |
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case 96000: |
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mclk = 256 * rate; |
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break; |
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default: |
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mclk = 512 * rate; |
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break; |
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} |
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/* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ |
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ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); |
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if (ret) { |
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dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", |
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mclk / 1000000, mclk / 1000 % 1000); |
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return ret; |
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} |
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/* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); |
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if (ret) { |
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dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", |
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mclk / 1000000, mclk / 1000 % 1000); |
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return ret; |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = { |
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.hw_params = mxs_sgtl5000_hw_params, |
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}; |
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#define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
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SND_SOC_DAIFMT_CBS_CFS) |
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SND_SOC_DAILINK_DEFS(hifi_tx, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(hifi_rx, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { |
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{ |
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.name = "HiFi Tx", |
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.stream_name = "HiFi Playback", |
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.dai_fmt = MXS_SGTL5000_DAI_FMT, |
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.ops = &mxs_sgtl5000_hifi_ops, |
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.playback_only = true, |
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SND_SOC_DAILINK_REG(hifi_tx), |
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}, { |
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.name = "HiFi Rx", |
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.stream_name = "HiFi Capture", |
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.dai_fmt = MXS_SGTL5000_DAI_FMT, |
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.ops = &mxs_sgtl5000_hifi_ops, |
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.capture_only = true, |
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SND_SOC_DAILINK_REG(hifi_rx), |
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}, |
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}; |
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static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = { |
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SND_SOC_DAPM_MIC("Mic Jack", NULL), |
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SND_SOC_DAPM_LINE("Line In Jack", NULL), |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_SPK("Line Out Jack", NULL), |
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SND_SOC_DAPM_SPK("Ext Spk", NULL), |
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}; |
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static struct snd_soc_card mxs_sgtl5000 = { |
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.name = "mxs_sgtl5000", |
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.owner = THIS_MODULE, |
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.dai_link = mxs_sgtl5000_dai, |
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.num_links = ARRAY_SIZE(mxs_sgtl5000_dai), |
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}; |
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static int mxs_sgtl5000_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = &mxs_sgtl5000; |
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int ret, i; |
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struct device_node *np = pdev->dev.of_node; |
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struct device_node *saif_np[2], *codec_np; |
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saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); |
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saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); |
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codec_np = of_parse_phandle(np, "audio-codec", 0); |
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if (!saif_np[0] || !saif_np[1] || !codec_np) { |
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dev_err(&pdev->dev, "phandle missing or invalid\n"); |
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return -EINVAL; |
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} |
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for (i = 0; i < 2; i++) { |
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mxs_sgtl5000_dai[i].codecs->name = NULL; |
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mxs_sgtl5000_dai[i].codecs->of_node = codec_np; |
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mxs_sgtl5000_dai[i].cpus->dai_name = NULL; |
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mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i]; |
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mxs_sgtl5000_dai[i].platforms->name = NULL; |
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mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i]; |
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} |
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of_node_put(codec_np); |
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of_node_put(saif_np[0]); |
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of_node_put(saif_np[1]); |
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/* |
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* Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). |
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* The Sgtl5000 sysclk is derived from saif0 mclk and it's range |
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* should be >= 8MHz and <= 27M. |
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*/ |
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ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); |
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if (ret) { |
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dev_err(&pdev->dev, "failed to get mclk\n"); |
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return ret; |
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} |
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card->dev = &pdev->dev; |
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if (of_find_property(np, "audio-routing", NULL)) { |
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card->dapm_widgets = mxs_sgtl5000_dapm_widgets; |
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card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets); |
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ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); |
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if (ret) { |
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dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n", |
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ret); |
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return ret; |
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} |
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} |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) { |
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if (ret != -EPROBE_DEFER) |
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", |
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ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int mxs_sgtl5000_remove(struct platform_device *pdev) |
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{ |
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mxs_saif_put_mclk(0); |
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return 0; |
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} |
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static const struct of_device_id mxs_sgtl5000_dt_ids[] = { |
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{ .compatible = "fsl,mxs-audio-sgtl5000", }, |
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{ /* sentinel */ } |
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}; |
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MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); |
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static struct platform_driver mxs_sgtl5000_audio_driver = { |
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.driver = { |
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.name = "mxs-sgtl5000", |
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.of_match_table = mxs_sgtl5000_dt_ids, |
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}, |
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.probe = mxs_sgtl5000_probe, |
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.remove = mxs_sgtl5000_remove, |
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}; |
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module_platform_driver(mxs_sgtl5000_audio_driver); |
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MODULE_AUTHOR("Freescale Semiconductor, Inc."); |
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MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:mxs-sgtl5000");
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