diff options
Diffstat (limited to 'sound/soc/bcm/hifiberry_dacplusdsp.c')
| -rw-r--r-- | sound/soc/bcm/hifiberry_dacplusdsp.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sound/soc/bcm/hifiberry_dacplusdsp.c b/sound/soc/bcm/hifiberry_dacplusdsp.c new file mode 100644 index 000000000000..cda7ee519093 --- /dev/null +++ b/sound/soc/bcm/hifiberry_dacplusdsp.c @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ASoC Driver for HiFiBerry DAC + DSP + * + * Author: Joerg Schambacher <joscha@schambacher.com> + * Copyright 2018 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * 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. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <sound/soc.h> + +static struct snd_soc_component_driver dacplusdsp_component_driver; + +static struct snd_soc_dai_driver dacplusdsp_dai = { + .name = "dacplusdsp-hifi", + .capture = { + .stream_name = "DAC+DSP Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .playback = { + .stream_name = "DACP+DSP Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .symmetric_rates = 1}; + +#ifdef CONFIG_OF +static const struct of_device_id dacplusdsp_ids[] = { + { + .compatible = "hifiberry,dacplusdsp", + }, + {} }; +MODULE_DEVICE_TABLE(of, dacplusdsp_ids); +#endif + +static int dacplusdsp_platform_probe(struct platform_device *pdev) +{ + int ret; + + ret = snd_soc_register_component(&pdev->dev, + &dacplusdsp_component_driver, &dacplusdsp_dai, 1); + if (ret) { + pr_alert("snd_soc_register_component failed\n"); + return ret; + } + + return 0; +} + +static int dacplusdsp_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_component(&pdev->dev); + return 0; +} + +static struct platform_driver dacplusdsp_driver = { + .driver = { + .name = "hifiberry-dacplusdsp-codec", + .of_match_table = of_match_ptr(dacplusdsp_ids), + }, + .probe = dacplusdsp_platform_probe, + .remove = dacplusdsp_platform_remove, +}; + +module_platform_driver(dacplusdsp_driver); + +MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>"); +MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP"); +MODULE_LICENSE("GPL v2"); |