diff options
Diffstat (limited to 'sound/soc/codecs/ac97.c')
| -rw-r--r-- | sound/soc/codecs/ac97.c | 104 |
1 files changed, 54 insertions, 50 deletions
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c index ec7351803c24..d8444a083af2 100644 --- a/sound/soc/codecs/ac97.c +++ b/sound/soc/codecs/ac97.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ac97.c -- ALSA Soc AC97 codec support * * Copyright 2005 Wolfson Microelectronics PLC. * Author: Liam Girdwood <lrg@slimlogic.co.uk> * - * 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. - * * Generic AC97 support. */ @@ -17,92 +13,94 @@ #include <linux/kernel.h> #include <linux/device.h> #include <linux/module.h> +#include <linux/of.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> #include <sound/initval.h> #include <sound/soc.h> +static const struct snd_soc_dapm_widget ac97_widgets[] = { + SND_SOC_DAPM_INPUT("RX"), + SND_SOC_DAPM_OUTPUT("TX"), +}; + +static const struct snd_soc_dapm_route ac97_routes[] = { + { "AC97 Capture", NULL, "RX" }, + { "TX", NULL, "AC97 Playback" }, +}; + static int ac97_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct snd_soc_codec *codec = dai->codec; + struct snd_soc_component *component = dai->component; + struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE; - return snd_ac97_set_rate(codec->ac97, reg, substream->runtime->rate); + return snd_ac97_set_rate(ac97, reg, substream->runtime->rate); } -#define STD_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ - SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\ - SNDRV_PCM_RATE_48000) - static const struct snd_soc_dai_ops ac97_dai_ops = { .prepare = ac97_prepare, }; static struct snd_soc_dai_driver ac97_dai = { .name = "ac97-hifi", - .ac97_control = 1, .playback = { .stream_name = "AC97 Playback", .channels_min = 1, .channels_max = 2, - .rates = STD_AC97_RATES, + .rates = SNDRV_PCM_RATE_KNOT, .formats = SND_SOC_STD_AC97_FMTS,}, .capture = { .stream_name = "AC97 Capture", .channels_min = 1, .channels_max = 2, - .rates = STD_AC97_RATES, + .rates = SNDRV_PCM_RATE_KNOT, .formats = SND_SOC_STD_AC97_FMTS,}, .ops = &ac97_dai_ops, }; -static unsigned int ac97_read(struct snd_soc_codec *codec, - unsigned int reg) -{ - return soc_ac97_ops->read(codec->ac97, reg); -} - -static int ac97_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int val) -{ - soc_ac97_ops->write(codec->ac97, reg, val); - return 0; -} - -static int ac97_soc_probe(struct snd_soc_codec *codec) +static int ac97_soc_probe(struct snd_soc_component *component) { + struct snd_ac97 *ac97; struct snd_ac97_bus *ac97_bus; struct snd_ac97_template ac97_template; int ret; /* add codec as bus device for standard ac97 */ - ret = snd_ac97_bus(codec->card->snd_card, 0, soc_ac97_ops, NULL, - &ac97_bus); + ret = snd_ac97_bus(component->card->snd_card, 0, soc_ac97_ops, + NULL, &ac97_bus); if (ret < 0) return ret; memset(&ac97_template, 0, sizeof(struct snd_ac97_template)); - ret = snd_ac97_mixer(ac97_bus, &ac97_template, &codec->ac97); + ret = snd_ac97_mixer(ac97_bus, &ac97_template, &ac97); if (ret < 0) return ret; + snd_soc_component_set_drvdata(component, ac97); + return 0; } #ifdef CONFIG_PM -static int ac97_soc_suspend(struct snd_soc_codec *codec) +static int ac97_soc_suspend(struct snd_soc_component *component) { - snd_ac97_suspend(codec->ac97); + struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); + + snd_ac97_suspend(ac97); return 0; } -static int ac97_soc_resume(struct snd_soc_codec *codec) +static int ac97_soc_resume(struct snd_soc_component *component) { - snd_ac97_resume(codec->ac97); + + struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); + + snd_ac97_resume(ac97); return 0; } @@ -111,34 +109,40 @@ static int ac97_soc_resume(struct snd_soc_codec *codec) #define ac97_soc_resume NULL #endif -static struct snd_soc_codec_driver soc_codec_dev_ac97 = { - .write = ac97_write, - .read = ac97_read, - .probe = ac97_soc_probe, - .suspend = ac97_soc_suspend, - .resume = ac97_soc_resume, +static const struct snd_soc_component_driver soc_component_dev_ac97 = { + .probe = ac97_soc_probe, + .suspend = ac97_soc_suspend, + .resume = ac97_soc_resume, + .dapm_widgets = ac97_widgets, + .num_dapm_widgets = ARRAY_SIZE(ac97_widgets), + .dapm_routes = ac97_routes, + .num_dapm_routes = ARRAY_SIZE(ac97_routes), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, }; static int ac97_probe(struct platform_device *pdev) { - return snd_soc_register_codec(&pdev->dev, - &soc_codec_dev_ac97, &ac97_dai, 1); + return devm_snd_soc_register_component(&pdev->dev, + &soc_component_dev_ac97, &ac97_dai, 1); } -static int ac97_remove(struct platform_device *pdev) -{ - snd_soc_unregister_codec(&pdev->dev); - return 0; -} +#ifdef CONFIG_OF +static const struct of_device_id ac97_codec_of_match[] = { + { .compatible = "realtek,alc203", }, + { } +}; +MODULE_DEVICE_TABLE(of, ac97_codec_of_match); +#endif static struct platform_driver ac97_codec_driver = { .driver = { .name = "ac97-codec", - .owner = THIS_MODULE, + .of_match_table = of_match_ptr(ac97_codec_of_match), }, .probe = ac97_probe, - .remove = ac97_remove, }; module_platform_driver(ac97_codec_driver); |