^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Nicolas Pitre
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Created: Nov 30, 2004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright: (C) 2004 MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/dmaengine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/pxa2xx-lib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sound/dmaengine_pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct snd_soc_component_driver pxa2xx_soc_platform = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) .pcm_construct = pxa2xx_soc_pcm_new,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .pcm_destruct = pxa2xx_soc_pcm_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .open = pxa2xx_soc_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .close = pxa2xx_soc_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .hw_params = pxa2xx_soc_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .hw_free = pxa2xx_soc_pcm_hw_free,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) .prepare = pxa2xx_soc_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .trigger = pxa2xx_soc_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .pointer = pxa2xx_soc_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .mmap = pxa2xx_soc_pcm_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static struct platform_driver pxa_pcm_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .name = "pxa-pcm-audio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .probe = pxa2xx_soc_platform_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) module_platform_driver(pxa_pcm_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) MODULE_AUTHOR("Nicolas Pitre");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) MODULE_ALIAS("platform:pxa-pcm-audio");