Add: compatible to linux kernel 5.3.0 or higher
This commit is contained in:
hhuysqt
parent
2da704e872
commit
920ef83b63
1 changed files with 731 additions and 0 deletions
731
seeed-voicecard-v5.3.c
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731
seeed-voicecard-v5.3.c
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/*
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* SEEED voice card
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*
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* (C) Copyright 2017-2018
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* Seeed Technology Co., Ltd. <www.seeedstudio.com>
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*
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* base on ASoC simple sound card support
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*
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* Copyright (C) 2012 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/* #undef DEBUG */
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#include <linux/version.h>
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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#include <linux/platform_device.h>
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#include <linux/string.h>
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include <sound/simple_card_utils.h>
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#include "ac10x.h"
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/*
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* single codec:
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* 0 - allow multi codec
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* 1 - yes
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*/
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#define _SINGLE_CODEC 1
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struct seeed_card_data {
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struct snd_soc_card snd_card;
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struct seeed_dai_props {
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struct asoc_simple_dai cpu_dai;
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struct asoc_simple_dai codec_dai;
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struct snd_soc_dai_link_component cpus; /* single cpu */
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struct snd_soc_dai_link_component codecs; /* single codec */
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struct snd_soc_dai_link_component platforms;
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unsigned int mclk_fs;
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} *dai_props;
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unsigned int mclk_fs;
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unsigned channels_playback_default;
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unsigned channels_playback_override;
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unsigned channels_capture_default;
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unsigned channels_capture_override;
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struct snd_soc_dai_link *dai_link;
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#if CONFIG_AC10X_TRIG_LOCK
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spinlock_t lock;
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#endif
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struct work_struct work_codec_clk;
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#define TRY_STOP_MAX 3
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int try_stop;
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};
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struct seeed_card_info {
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const char *name;
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const char *card;
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const char *codec;
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const char *platform;
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unsigned int daifmt;
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struct asoc_simple_dai cpu_dai;
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struct asoc_simple_dai codec_dai;
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};
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#define seeed_priv_to_dev(priv) ((priv)->snd_card.dev)
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#define seeed_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i))
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#define seeed_priv_to_props(priv, i) ((priv)->dai_props + (i))
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#define DAI "sound-dai"
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#define CELL "#sound-dai-cells"
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#define PREFIX "seeed-voice-card,"
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static int seeed_voice_card_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct seeed_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
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struct seeed_dai_props *dai_props =
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seeed_priv_to_props(priv, rtd->num);
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int ret;
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ret = clk_prepare_enable(dai_props->cpu_dai.clk);
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if (ret)
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return ret;
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ret = clk_prepare_enable(dai_props->codec_dai.clk);
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if (ret)
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clk_disable_unprepare(dai_props->cpu_dai.clk);
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if (rtd->cpu_dai->driver->playback.channels_min) {
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priv->channels_playback_default = rtd->cpu_dai->driver->playback.channels_min;
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}
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if (rtd->cpu_dai->driver->capture.channels_min) {
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priv->channels_capture_default = rtd->cpu_dai->driver->capture.channels_min;
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}
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rtd->cpu_dai->driver->playback.channels_min = priv->channels_playback_override;
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rtd->cpu_dai->driver->playback.channels_max = priv->channels_playback_override;
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rtd->cpu_dai->driver->capture.channels_min = priv->channels_capture_override;
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rtd->cpu_dai->driver->capture.channels_max = priv->channels_capture_override;
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return ret;
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}
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static void seeed_voice_card_shutdown(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct seeed_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
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struct seeed_dai_props *dai_props =
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seeed_priv_to_props(priv, rtd->num);
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rtd->cpu_dai->driver->playback.channels_min = priv->channels_playback_default;
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rtd->cpu_dai->driver->playback.channels_max = priv->channels_playback_default;
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rtd->cpu_dai->driver->capture.channels_min = priv->channels_capture_default;
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rtd->cpu_dai->driver->capture.channels_max = priv->channels_capture_default;
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clk_disable_unprepare(dai_props->cpu_dai.clk);
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clk_disable_unprepare(dai_props->codec_dai.clk);
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}
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static int seeed_voice_card_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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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct seeed_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
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struct seeed_dai_props *dai_props =
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seeed_priv_to_props(priv, rtd->num);
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unsigned int mclk, mclk_fs = 0;
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int ret = 0;
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if (priv->mclk_fs)
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mclk_fs = priv->mclk_fs;
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else if (dai_props->mclk_fs)
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mclk_fs = dai_props->mclk_fs;
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if (mclk_fs) {
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mclk = params_rate(params) * mclk_fs;
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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SND_SOC_CLOCK_IN);
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if (ret && ret != -ENOTSUPP)
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goto err;
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
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SND_SOC_CLOCK_OUT);
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if (ret && ret != -ENOTSUPP)
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goto err;
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}
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return 0;
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err:
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return ret;
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}
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#define _SET_CLOCK_CNT 2
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static int (* _set_clock[_SET_CLOCK_CNT])(int y_start_n_stop);
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int seeed_voice_card_register_set_clock(int stream, int (*set_clock)(int)) {
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if (! _set_clock[stream]) {
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_set_clock[stream] = set_clock;
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}
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return 0;
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}
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EXPORT_SYMBOL(seeed_voice_card_register_set_clock);
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/*
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* work_cb_codec_clk: clear audio codec inner clock.
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*/
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static void work_cb_codec_clk(struct work_struct *work)
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{
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struct seeed_card_data *priv = container_of(work, struct seeed_card_data, work_codec_clk);
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int r = 0;
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if (_set_clock[SNDRV_PCM_STREAM_CAPTURE]) {
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r = r || _set_clock[SNDRV_PCM_STREAM_CAPTURE](0);
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}
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if (_set_clock[SNDRV_PCM_STREAM_PLAYBACK]) {
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r = r || _set_clock[SNDRV_PCM_STREAM_PLAYBACK](0);
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}
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if (r && priv->try_stop++ < TRY_STOP_MAX) {
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if (0 != schedule_work(&priv->work_codec_clk)) {}
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}
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return;
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}
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static int seeed_voice_card_trigger(struct snd_pcm_substream *substream, int cmd)
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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 *dai = rtd->codec_dai;
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struct seeed_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
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#if CONFIG_AC10X_TRIG_LOCK
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unsigned long flags;
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#endif
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int ret = 0;
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dev_dbg(rtd->card->dev, "%s() stream=%s cmd=%d play:%d, capt:%d\n",
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__FUNCTION__, snd_pcm_stream_str(substream), cmd,
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dai->playback_active, dai->capture_active);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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if (cancel_work_sync(&priv->work_codec_clk) != 0) {}
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#if CONFIG_AC10X_TRIG_LOCK
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/* I know it will degrades performance, but I have no choice */
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spin_lock_irqsave(&priv->lock, flags);
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#endif
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if (_set_clock[SNDRV_PCM_STREAM_CAPTURE]) _set_clock[SNDRV_PCM_STREAM_CAPTURE](1);
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if (_set_clock[SNDRV_PCM_STREAM_PLAYBACK]) _set_clock[SNDRV_PCM_STREAM_PLAYBACK](1);
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#if CONFIG_AC10X_TRIG_LOCK
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spin_unlock_irqrestore(&priv->lock, flags);
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#endif
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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/* capture channel resync, if overrun */
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if (dai->capture_active && substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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break;
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}
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/* interrupt environment */
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if (in_irq() || in_nmi() || in_serving_softirq()) {
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priv->try_stop = 0;
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if (0 != schedule_work(&priv->work_codec_clk)) {
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}
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} else {
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if (_set_clock[SNDRV_PCM_STREAM_CAPTURE]) _set_clock[SNDRV_PCM_STREAM_CAPTURE](0);
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if (_set_clock[SNDRV_PCM_STREAM_PLAYBACK]) _set_clock[SNDRV_PCM_STREAM_PLAYBACK](0);
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}
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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static struct snd_soc_ops seeed_voice_card_ops = {
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.startup = seeed_voice_card_startup,
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.shutdown = seeed_voice_card_shutdown,
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.hw_params = seeed_voice_card_hw_params,
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.trigger = seeed_voice_card_trigger,
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};
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/**
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* add support for kernel >= 5.3.0
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* see patch:
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* https://patchwork.kernel.org/patch/10860821/
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* https://patchwork.kernel.org/patch/10860823/
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*/
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static int asoc_simple_parse_dai(struct device_node *node,
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struct snd_soc_dai_link_component *dlc,
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int *is_single_link)
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{
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struct of_phandle_args args;
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int ret;
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if (!node)
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return 0;
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/*
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* Get node via "sound-dai = <&phandle port>"
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* it will be used as xxx_of_node on soc_bind_dai_link()
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*/
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ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
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if (ret)
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return ret;
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ret = snd_soc_of_get_dai_name(node, &dlc->dai_name);
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if (ret < 0)
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return ret;
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dlc->of_node = args.np;
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if (is_single_link)
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*is_single_link = !args.args_count;
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return 0;
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}
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static int asoc_simple_init_dai(struct snd_soc_dai *dai,
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struct asoc_simple_dai *simple_dai)
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{
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int ret;
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if (!simple_dai)
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return 0;
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if (simple_dai->sysclk) {
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ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
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simple_dai->clk_direction);
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if (ret && ret != -ENOTSUPP) {
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dev_err(dai->dev, "simple-card: set_sysclk error\n");
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return ret;
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}
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}
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if (simple_dai->slots) {
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ret = snd_soc_dai_set_tdm_slot(dai,
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simple_dai->tx_slot_mask,
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simple_dai->rx_slot_mask,
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simple_dai->slots,
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simple_dai->slot_width);
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if (ret && ret != -ENOTSUPP) {
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dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
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return ret;
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}
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}
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return 0;
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}
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static int seeed_voice_card_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct seeed_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
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struct snd_soc_dai *codec = rtd->codec_dai;
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struct snd_soc_dai *cpu = rtd->cpu_dai;
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struct seeed_dai_props *dai_props =
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seeed_priv_to_props(priv, rtd->num);
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int ret;
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ret = asoc_simple_init_dai(codec, &dai_props->codec_dai);
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if (ret < 0)
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return ret;
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ret = asoc_simple_init_dai(cpu, &dai_props->cpu_dai);
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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 int seeed_voice_card_dai_link_of(struct device_node *node,
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struct seeed_card_data *priv,
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int idx,
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bool is_top_level_node)
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{
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struct device *dev = seeed_priv_to_dev(priv);
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struct snd_soc_dai_link *dai_link = seeed_priv_to_link(priv, idx);
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struct seeed_dai_props *dai_props = seeed_priv_to_props(priv, idx);
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struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
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struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
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struct device_node *cpu = NULL;
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struct device_node *plat = NULL;
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struct device_node *codec = NULL;
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char prop[128];
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char *prefix = "";
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int ret, single_cpu;
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/* For single DAI link & old style of DT node */
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if (is_top_level_node)
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prefix = PREFIX;
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snprintf(prop, sizeof(prop), "%scpu", prefix);
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cpu = of_get_child_by_name(node, prop);
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if (!cpu) {
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ret = -EINVAL;
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dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
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goto dai_link_of_err;
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}
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snprintf(prop, sizeof(prop), "%splat", prefix);
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plat = of_get_child_by_name(node, prop);
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snprintf(prop, sizeof(prop), "%scodec", prefix);
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codec = of_get_child_by_name(node, prop);
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if (!codec) {
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ret = -EINVAL;
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dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
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goto dai_link_of_err;
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}
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ret = asoc_simple_parse_daifmt(dev, node, codec,
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prefix, &dai_link->dai_fmt);
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if (ret < 0)
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goto dai_link_of_err;
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of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);
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ret = asoc_simple_parse_cpu(cpu, dai_link,
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&single_cpu);
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if (ret < 0)
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goto dai_link_of_err;
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#if _SINGLE_CODEC
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ret = asoc_simple_parse_codec(codec, dai_link);
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if (ret < 0)
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goto dai_link_of_err;
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#else
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ret = snd_soc_of_get_dai_link_codecs(dev, codec, dai_link);
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if (ret < 0) {
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dev_err(dev, "parse codec info error %d\n", ret);
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goto dai_link_of_err;
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}
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dev_dbg(dev, "dai_link num_codecs = %d\n", dai_link->num_codecs);
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#endif
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ret = asoc_simple_parse_platform(plat, dai_link);
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if (ret < 0)
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goto dai_link_of_err;
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ret = snd_soc_of_parse_tdm_slot(cpu, &cpu_dai->tx_slot_mask,
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&cpu_dai->rx_slot_mask,
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&cpu_dai->slots,
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&cpu_dai->slot_width);
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dev_dbg(dev, "cpu_dai : slot,width,tx,rx = %d,%d,%d,%d\n",
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cpu_dai->slots, cpu_dai->slot_width,
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cpu_dai->tx_slot_mask, cpu_dai->rx_slot_mask
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);
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if (ret < 0)
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goto dai_link_of_err;
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ret = snd_soc_of_parse_tdm_slot(codec, &codec_dai->tx_slot_mask,
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&codec_dai->rx_slot_mask,
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&codec_dai->slots,
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&codec_dai->slot_width);
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if (ret < 0)
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goto dai_link_of_err;
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#if LINUX_VERSION_CODE <= KERNEL_VERSION(4,10,0)
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ret = asoc_simple_card_parse_clk_cpu(cpu, dai_link, cpu_dai);
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#else
|
||||
ret = asoc_simple_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
|
||||
#endif
|
||||
if (ret < 0)
|
||||
goto dai_link_of_err;
|
||||
|
||||
#if LINUX_VERSION_CODE <= KERNEL_VERSION(4,10,0)
|
||||
ret = asoc_simple_card_parse_clk_codec(codec, dai_link, codec_dai);
|
||||
#else
|
||||
ret = asoc_simple_parse_clk_codec(dev, codec, dai_link, codec_dai);
|
||||
#endif
|
||||
if (ret < 0)
|
||||
goto dai_link_of_err;
|
||||
|
||||
ret = asoc_simple_set_dailink_name(dev, dai_link,
|
||||
"%s-%s",
|
||||
dai_link->cpus->dai_name,
|
||||
#if _SINGLE_CODEC
|
||||
dai_link->codecs->dai_name
|
||||
#else
|
||||
dai_link->codecs[0].dai_name
|
||||
#endif
|
||||
);
|
||||
if (ret < 0)
|
||||
goto dai_link_of_err;
|
||||
|
||||
dai_link->ops = &seeed_voice_card_ops;
|
||||
dai_link->init = seeed_voice_card_dai_init;
|
||||
|
||||
dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
|
||||
dev_dbg(dev, "\tformat : %04x\n", dai_link->dai_fmt);
|
||||
dev_dbg(dev, "\tcpu : %s / %d\n",
|
||||
dai_link->cpus->dai_name,
|
||||
dai_props->cpu_dai.sysclk);
|
||||
dev_dbg(dev, "\tcodec : %s / %d\n",
|
||||
#if _SINGLE_CODEC
|
||||
dai_link->codecs->dai_name,
|
||||
#else
|
||||
dai_link->codecs[0].dai_name,
|
||||
#endif
|
||||
dai_props->codec_dai.sysclk);
|
||||
|
||||
#if _SINGLE_CODEC
|
||||
asoc_simple_canonicalize_platform(dai_link);
|
||||
#endif
|
||||
|
||||
asoc_simple_canonicalize_cpu(dai_link, single_cpu);
|
||||
|
||||
dai_link_of_err:
|
||||
of_node_put(cpu);
|
||||
of_node_put(codec);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int seeed_voice_card_parse_aux_devs(struct device_node *node,
|
||||
struct seeed_card_data *priv)
|
||||
{
|
||||
struct device *dev = seeed_priv_to_dev(priv);
|
||||
struct device_node *aux_node;
|
||||
int i, n, len;
|
||||
|
||||
if (!of_find_property(node, PREFIX "aux-devs", &len))
|
||||
return 0; /* Ok to have no aux-devs */
|
||||
|
||||
n = len / sizeof(__be32);
|
||||
if (n <= 0)
|
||||
return -EINVAL;
|
||||
|
||||
priv->snd_card.aux_dev = devm_kzalloc(dev,
|
||||
n * sizeof(*priv->snd_card.aux_dev), GFP_KERNEL);
|
||||
if (!priv->snd_card.aux_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
aux_node = of_parse_phandle(node, PREFIX "aux-devs", i);
|
||||
if (!aux_node)
|
||||
return -EINVAL;
|
||||
priv->snd_card.aux_dev[i].codec_of_node = aux_node;
|
||||
}
|
||||
|
||||
priv->snd_card.num_aux_devs = n;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int seeed_voice_card_parse_of(struct device_node *node,
|
||||
struct seeed_card_data *priv)
|
||||
{
|
||||
struct device *dev = seeed_priv_to_dev(priv);
|
||||
struct device_node *dai_link;
|
||||
int ret;
|
||||
|
||||
if (!node)
|
||||
return -EINVAL;
|
||||
|
||||
dai_link = of_get_child_by_name(node, PREFIX "dai-link");
|
||||
|
||||
/* The off-codec widgets */
|
||||
if (of_property_read_bool(node, PREFIX "widgets")) {
|
||||
ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
|
||||
PREFIX "widgets");
|
||||
if (ret)
|
||||
goto card_parse_end;
|
||||
}
|
||||
|
||||
/* DAPM routes */
|
||||
if (of_property_read_bool(node, PREFIX "routing")) {
|
||||
ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
|
||||
PREFIX "routing");
|
||||
if (ret)
|
||||
goto card_parse_end;
|
||||
}
|
||||
|
||||
/* Factor to mclk, used in hw_params() */
|
||||
of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
|
||||
|
||||
/* Single/Muti DAI link(s) & New style of DT node */
|
||||
if (dai_link) {
|
||||
struct device_node *np = NULL;
|
||||
int i = 0;
|
||||
|
||||
for_each_child_of_node(node, np) {
|
||||
dev_dbg(dev, "\tlink %d:\n", i);
|
||||
ret = seeed_voice_card_dai_link_of(np, priv,
|
||||
i, false);
|
||||
if (ret < 0) {
|
||||
of_node_put(np);
|
||||
goto card_parse_end;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
} else {
|
||||
/* For single DAI link & old style of DT node */
|
||||
ret = seeed_voice_card_dai_link_of(node, priv, 0, true);
|
||||
if (ret < 0)
|
||||
goto card_parse_end;
|
||||
}
|
||||
|
||||
ret = asoc_simple_parse_card_name(&priv->snd_card, PREFIX);
|
||||
if (ret < 0)
|
||||
goto card_parse_end;
|
||||
|
||||
ret = seeed_voice_card_parse_aux_devs(node, priv);
|
||||
|
||||
priv->channels_playback_default = 0;
|
||||
priv->channels_playback_override = 2;
|
||||
priv->channels_capture_default = 0;
|
||||
priv->channels_capture_override = 2;
|
||||
of_property_read_u32(node, PREFIX "channels-playback-default",
|
||||
&priv->channels_playback_default);
|
||||
of_property_read_u32(node, PREFIX "channels-playback-override",
|
||||
&priv->channels_playback_override);
|
||||
of_property_read_u32(node, PREFIX "channels-capture-default",
|
||||
&priv->channels_capture_default);
|
||||
of_property_read_u32(node, PREFIX "channels-capture-override",
|
||||
&priv->channels_capture_override);
|
||||
|
||||
card_parse_end:
|
||||
of_node_put(dai_link);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int seeed_voice_card_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct seeed_card_data *priv;
|
||||
struct snd_soc_dai_link *dai_link;
|
||||
struct seeed_dai_props *dai_props;
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
struct device *dev = &pdev->dev;
|
||||
int num, ret;
|
||||
|
||||
/* Get the number of DAI links */
|
||||
if (np && of_get_child_by_name(np, PREFIX "dai-link"))
|
||||
num = of_get_child_count(np);
|
||||
else
|
||||
num = 1;
|
||||
|
||||
/* Allocate the private data and the DAI link array */
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
dai_props = devm_kzalloc(dev, sizeof(*dai_props) * num, GFP_KERNEL);
|
||||
dai_link = devm_kzalloc(dev, sizeof(*dai_link) * num, GFP_KERNEL);
|
||||
if (!dai_props || !dai_link)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->dai_props = dai_props;
|
||||
priv->dai_link = dai_link;
|
||||
|
||||
/**
|
||||
* Only support single template for now
|
||||
*/
|
||||
dai_link->cpus = &dai_props->cpus;
|
||||
dai_link->codecs = &dai_props->codecs;
|
||||
dai_link->platforms = &dai_props->platforms;
|
||||
dai_link->num_cpus =
|
||||
dai_link->num_codecs =
|
||||
dai_link->num_platforms = 1;
|
||||
|
||||
/* Init snd_soc_card */
|
||||
priv->snd_card.owner = THIS_MODULE;
|
||||
priv->snd_card.dev = dev;
|
||||
priv->snd_card.dai_link = priv->dai_link;
|
||||
priv->snd_card.num_links = num;
|
||||
|
||||
if (np && of_device_is_available(np)) {
|
||||
ret = seeed_voice_card_parse_of(np, priv);
|
||||
if (ret < 0) {
|
||||
if (ret != -EPROBE_DEFER)
|
||||
dev_err(dev, "parse error %d\n", ret);
|
||||
goto err;
|
||||
}
|
||||
} else {
|
||||
struct seeed_card_info *cinfo;
|
||||
|
||||
cinfo = dev->platform_data;
|
||||
if (!cinfo) {
|
||||
dev_err(dev, "no info for seeed-voice-card\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!cinfo->name ||
|
||||
!cinfo->codec_dai.name ||
|
||||
!cinfo->codec ||
|
||||
!cinfo->platform ||
|
||||
!cinfo->cpu_dai.name) {
|
||||
dev_err(dev, "insufficient seeed_voice_card_info settings\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name;
|
||||
dai_link->name = cinfo->name;
|
||||
dai_link->stream_name = cinfo->name;
|
||||
dai_link->platforms->name = cinfo->platform;
|
||||
dai_link->codecs->name = cinfo->codec;
|
||||
dai_link->cpus->dai_name = cinfo->cpu_dai.name;
|
||||
dai_link->codecs->dai_name = cinfo->codec_dai.name;
|
||||
dai_link->dai_fmt = cinfo->daifmt;
|
||||
dai_link->init = seeed_voice_card_dai_init;
|
||||
memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai,
|
||||
sizeof(priv->dai_props->cpu_dai));
|
||||
memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai,
|
||||
sizeof(priv->dai_props->codec_dai));
|
||||
}
|
||||
|
||||
snd_soc_card_set_drvdata(&priv->snd_card, priv);
|
||||
|
||||
#if CONFIG_AC10X_TRIG_LOCK
|
||||
spin_lock_init(&priv->lock);
|
||||
#endif
|
||||
|
||||
INIT_WORK(&priv->work_codec_clk, work_cb_codec_clk);
|
||||
|
||||
ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
|
||||
if (ret >= 0)
|
||||
return ret;
|
||||
|
||||
err:
|
||||
asoc_simple_clean_reference(&priv->snd_card);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int seeed_voice_card_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
||||
struct seeed_card_data *priv = snd_soc_card_get_drvdata(card);
|
||||
|
||||
if (cancel_work_sync(&priv->work_codec_clk) != 0) {
|
||||
}
|
||||
return asoc_simple_clean_reference(card);
|
||||
}
|
||||
|
||||
static const struct of_device_id seeed_voice_of_match[] = {
|
||||
{ .compatible = "seeed-voicecard", },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, seeed_voice_of_match);
|
||||
|
||||
static struct platform_driver seeed_voice_card = {
|
||||
.driver = {
|
||||
.name = "seeed-voicecard",
|
||||
.pm = &snd_soc_pm_ops,
|
||||
.of_match_table = seeed_voice_of_match,
|
||||
},
|
||||
.probe = seeed_voice_card_probe,
|
||||
.remove = seeed_voice_card_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(seeed_voice_card);
|
||||
|
||||
MODULE_ALIAS("platform:seeed-voice-card");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_DESCRIPTION("ASoC SEEED Voice Card");
|
||||
MODULE_AUTHOR("PeterYang<linsheng.yang@seeed.cc>");
|
||||
Loading…
Reference in a new issue