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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
- */
- #include <linux/device.h>
- #include <linux/init.h>
- #include <linux/module.h>
- #include <sound/core.h>
- #include <sound/pcm.h>
- #include <sound/soc.h>
- #include <sound/dmaengine_pcm.h>
- #include "rockchip_pcm.h"
- static const struct snd_pcm_hardware snd_rockchip_hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME |
- SNDRV_PCM_INFO_INTERLEAVED,
- .period_bytes_min = 32,
- .period_bytes_max = 8192,
- .periods_min = 1,
- .periods_max = 52,
- .buffer_bytes_max = 64 * 1024,
- .fifo_size = 32,
- };
- static const struct snd_dmaengine_pcm_config rk_dmaengine_pcm_config = {
- .pcm_hardware = &snd_rockchip_hardware,
- .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
- .prealloc_buffer_size = 32 * 1024,
- };
- int rockchip_pcm_platform_register(struct device *dev)
- {
- return devm_snd_dmaengine_pcm_register(dev, &rk_dmaengine_pcm_config,
- SND_DMAENGINE_PCM_FLAG_COMPAT);
- }
- EXPORT_SYMBOL_GPL(rockchip_pcm_platform_register);
- MODULE_LICENSE("GPL v2");
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