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Release 4.7 sound/soc/mxs/mxs-sgtl5000.c

Directory: sound/soc/mxs
/*
 * Copyright 2011 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <linux/module.h>
#include <linux/device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/soc-dapm.h>

#include "../codecs/sgtl5000.h"
#include "mxs-saif.h"


static int mxs_sgtl5000_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; unsigned int rate = params_rate(params); u32 mclk; int ret; /* sgtl5000 does not support 512*rate when in 96000 fs */ switch (rate) { case 96000: mclk = 256 * rate; break; default: mclk = 512 * rate; break; } /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); if (ret) { dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", mclk / 1000000, mclk / 1000 % 1000); return ret; } /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); if (ret) { dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", mclk / 1000000, mclk / 1000 % 1000); return ret; } return 0; }

Contributors

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dong aishengdong aisheng12875.29%150.00%
lothar wassmannlothar wassmann4224.71%150.00%
Total170100.00%2100.00%

static struct snd_soc_ops mxs_sgtl5000_hifi_ops = { .hw_params = mxs_sgtl5000_hw_params, }; #define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ SND_SOC_DAIFMT_CBS_CFS) static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { { .name = "HiFi Tx", .stream_name = "HiFi Playback", .codec_dai_name = "sgtl5000", .dai_fmt = MXS_SGTL5000_DAI_FMT, .ops = &mxs_sgtl5000_hifi_ops, .playback_only = true, }, { .name = "HiFi Rx", .stream_name = "HiFi Capture", .codec_dai_name = "sgtl5000", .dai_fmt = MXS_SGTL5000_DAI_FMT, .ops = &mxs_sgtl5000_hifi_ops, .capture_only = true, }, }; static struct snd_soc_card mxs_sgtl5000 = { .name = "mxs_sgtl5000", .owner = THIS_MODULE, .dai_link = mxs_sgtl5000_dai, .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), };
static int mxs_sgtl5000_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mxs_sgtl5000; int ret, i; struct device_node *np = pdev->dev.of_node; struct device_node *saif_np[2], *codec_np; saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); codec_np = of_parse_phandle(np, "audio-codec", 0); if (!saif_np[0] || !saif_np[1] || !codec_np) { dev_err(&pdev->dev, "phandle missing or invalid\n"); return -EINVAL; } for (i = 0; i < 2; i++) { mxs_sgtl5000_dai[i].codec_name = NULL; mxs_sgtl5000_dai[i].codec_of_node = codec_np; mxs_sgtl5000_dai[i].cpu_dai_name = NULL; mxs_sgtl5000_dai[i].cpu_of_node = saif_np[i]; mxs_sgtl5000_dai[i].platform_name = NULL; mxs_sgtl5000_dai[i].platform_of_node = saif_np[i]; } of_node_put(codec_np); of_node_put(saif_np[0]); of_node_put(saif_np[1]); /* * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). * The Sgtl5000 sysclk is derived from saif0 mclk and it's range * should be >= 8MHz and <= 27M. */ ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); if (ret) { dev_err(&pdev->dev, "failed to get mclk\n"); return ret; } card->dev = &pdev->dev; platform_set_drvdata(pdev, card); ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); return ret; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
shawn guoshawn guo19866.22%116.67%
dong aishengdong aisheng6822.74%116.67%
fabio estevamfabio estevam144.68%116.67%
lothar wassmannlothar wassmann124.01%116.67%
axel linaxel lin62.01%116.67%
stephen warrenstephen warren10.33%116.67%
Total299100.00%6100.00%


static int mxs_sgtl5000_remove(struct platform_device *pdev) { mxs_saif_put_mclk(0); return 0; }

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dong aishengdong aisheng19100.00%1100.00%
Total19100.00%1100.00%

static const struct of_device_id mxs_sgtl5000_dt_ids[] = { { .compatible = "fsl,mxs-audio-sgtl5000", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); static struct platform_driver mxs_sgtl5000_audio_driver = { .driver = { .name = "mxs-sgtl5000", .of_match_table = mxs_sgtl5000_dt_ids, }, .probe = mxs_sgtl5000_probe, .remove = mxs_sgtl5000_remove, }; module_platform_driver(mxs_sgtl5000_audio_driver); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:mxs-sgtl5000");

Overall Contributors

PersonTokensPropCommitsCommitProp
dong aishengdong aisheng38252.62%216.67%
shawn guoshawn guo23432.23%18.33%
lothar wassmannlothar wassmann648.82%325.00%
fabio estevamfabio estevam243.31%216.67%
lars-peter clausenlars-peter clausen141.93%18.33%
axel linaxel lin70.96%216.67%
stephen warrenstephen warren10.14%18.33%
Total726100.00%12100.00%
Directory: sound/soc/mxs
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