162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com 462306a36Sopenharmony_ci * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <linux/module.h> 862306a36Sopenharmony_ci#include <sound/core.h> 962306a36Sopenharmony_ci#include <sound/pcm.h> 1062306a36Sopenharmony_ci#include <sound/pcm_params.h> 1162306a36Sopenharmony_ci#include <sound/soc.h> 1262306a36Sopenharmony_ci#include <sound/dmaengine_pcm.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#include "udma-pcm.h" 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_cistatic const struct snd_pcm_hardware udma_pcm_hardware = { 1762306a36Sopenharmony_ci .info = SNDRV_PCM_INFO_MMAP | 1862306a36Sopenharmony_ci SNDRV_PCM_INFO_MMAP_VALID | 1962306a36Sopenharmony_ci SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | 2062306a36Sopenharmony_ci SNDRV_PCM_INFO_NO_PERIOD_WAKEUP | 2162306a36Sopenharmony_ci SNDRV_PCM_INFO_INTERLEAVED, 2262306a36Sopenharmony_ci .buffer_bytes_max = SIZE_MAX, 2362306a36Sopenharmony_ci .period_bytes_min = 32, 2462306a36Sopenharmony_ci .period_bytes_max = SZ_64K, 2562306a36Sopenharmony_ci .periods_min = 2, 2662306a36Sopenharmony_ci .periods_max = UINT_MAX, 2762306a36Sopenharmony_ci}; 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_cistatic const struct snd_dmaengine_pcm_config udma_dmaengine_pcm_config = { 3062306a36Sopenharmony_ci .pcm_hardware = &udma_pcm_hardware, 3162306a36Sopenharmony_ci .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, 3262306a36Sopenharmony_ci}; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciint udma_pcm_platform_register(struct device *dev) 3562306a36Sopenharmony_ci{ 3662306a36Sopenharmony_ci return devm_snd_dmaengine_pcm_register(dev, &udma_dmaengine_pcm_config, 3762306a36Sopenharmony_ci 0); 3862306a36Sopenharmony_ci} 3962306a36Sopenharmony_ciEXPORT_SYMBOL_GPL(udma_pcm_platform_register); 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ciMODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); 4262306a36Sopenharmony_ciMODULE_DESCRIPTION("UDMA PCM ASoC platform driver"); 4362306a36Sopenharmony_ciMODULE_LICENSE("GPL v2"); 44