162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci// 362306a36Sopenharmony_ci// dmaengine.c - Samsung dmaengine wrapper 462306a36Sopenharmony_ci// 562306a36Sopenharmony_ci// Author: Mark Brown <broonie@linaro.org> 662306a36Sopenharmony_ci// Copyright 2013 Linaro 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/module.h> 962306a36Sopenharmony_ci#include <sound/core.h> 1062306a36Sopenharmony_ci#include <sound/pcm.h> 1162306a36Sopenharmony_ci#include <sound/pcm_params.h> 1262306a36Sopenharmony_ci#include <sound/dmaengine_pcm.h> 1362306a36Sopenharmony_ci#include <sound/soc.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci#include "dma.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciint samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter, 1862306a36Sopenharmony_ci const char *tx, const char *rx, 1962306a36Sopenharmony_ci struct device *dma_dev) 2062306a36Sopenharmony_ci{ 2162306a36Sopenharmony_ci struct snd_dmaengine_pcm_config *pcm_conf; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci pcm_conf = devm_kzalloc(dev, sizeof(*pcm_conf), GFP_KERNEL); 2462306a36Sopenharmony_ci if (!pcm_conf) 2562306a36Sopenharmony_ci return -ENOMEM; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config; 2862306a36Sopenharmony_ci pcm_conf->compat_filter_fn = filter; 2962306a36Sopenharmony_ci pcm_conf->dma_dev = dma_dev; 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx; 3262306a36Sopenharmony_ci pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci return devm_snd_dmaengine_pcm_register(dev, pcm_conf, 3562306a36Sopenharmony_ci SND_DMAENGINE_PCM_FLAG_COMPAT); 3662306a36Sopenharmony_ci} 3762306a36Sopenharmony_ciEXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register); 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ciMODULE_AUTHOR("Mark Brown <broonie@linaro.org>"); 4062306a36Sopenharmony_ciMODULE_DESCRIPTION("Samsung dmaengine ASoC driver"); 4162306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 42