projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d37bdf73 MB |
1 | /* |
| 2 | * dmaengine.c - Samsung dmaengine wrapper | |
| 3 | * | |
| 4 | * Author: Mark Brown <broonie@linaro.org> | |
| 5 | * Copyright 2013 Linaro | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * version 2 as published by the Free Software Foundation. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, but | |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * General Public License for more details. | |
| 15 | * | |
| 16 | */ | |
| 17 | ||
| 18 | #include <linux/module.h> | |
| 19 | #include <linux/amba/pl08x.h> | |
| 87b132bc | 20 | #include <linux/platform_data/dma-s3c24xx.h> |
| d37bdf73 MB |
21 | |
| 22 | #include <sound/core.h> | |
| 23 | #include <sound/pcm.h> | |
| 24 | #include <sound/pcm_params.h> | |
| 25 | #include <sound/dmaengine_pcm.h> | |
| 26 | #include <sound/soc.h> | |
| 27 | #include <sound/soc-dai.h> | |
| 28 | ||
| 29 | #include "dma.h" | |
| 30 | ||
| 9bdca822 | 31 | static struct snd_dmaengine_pcm_config samsung_dmaengine_pcm_config = { |
| d37bdf73 | 32 | .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, |
| d37bdf73 MB |
33 | }; |
| 34 | ||
| 35 | void samsung_asoc_init_dma_data(struct snd_soc_dai *dai, | |
| 36 | struct s3c_dma_params *playback, | |
| 37 | struct s3c_dma_params *capture) | |
| 38 | { | |
| 39 | struct snd_dmaengine_dai_dma_data *playback_data = NULL; | |
| 40 | struct snd_dmaengine_dai_dma_data *capture_data = NULL; | |
| 41 | ||
| 42 | if (playback) { | |
| 43 | playback_data = &playback->dma_data; | |
| b9a1a743 | 44 | playback_data->filter_data = playback->slave; |
| d37bdf73 MB |
45 | playback_data->chan_name = playback->ch_name; |
| 46 | playback_data->addr = playback->dma_addr; | |
| 47 | playback_data->addr_width = playback->dma_size; | |
| 48 | } | |
| 49 | if (capture) { | |
| 50 | capture_data = &capture->dma_data; | |
| b9a1a743 | 51 | capture_data->filter_data = capture->slave; |
| d37bdf73 MB |
52 | capture_data->chan_name = capture->ch_name; |
| 53 | capture_data->addr = capture->dma_addr; | |
| 54 | capture_data->addr_width = capture->dma_size; | |
| 55 | } | |
| 56 | ||
| 57 | snd_soc_dai_init_dma_data(dai, playback_data, capture_data); | |
| 58 | } | |
| 59 | EXPORT_SYMBOL_GPL(samsung_asoc_init_dma_data); | |
| 60 | ||
| 9bdca822 AB |
61 | int samsung_asoc_dma_platform_register(struct device *dev, |
| 62 | dma_filter_fn filter) | |
| d37bdf73 | 63 | { |
| 9bdca822 AB |
64 | samsung_dmaengine_pcm_config.compat_filter_fn = filter; |
| 65 | ||
| 55313bd3 TB |
66 | return devm_snd_dmaengine_pcm_register(dev, |
| 67 | &samsung_dmaengine_pcm_config, | |
| 68 | SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME | | |
| 69 | SND_DMAENGINE_PCM_FLAG_COMPAT); | |
| d37bdf73 MB |
70 | } |
| 71 | EXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register); | |
| 72 | ||
| d37bdf73 MB |
73 | MODULE_AUTHOR("Mark Brown <broonie@linaro.org>"); |
| 74 | MODULE_DESCRIPTION("Samsung dmaengine ASoC driver"); | |
| 75 | MODULE_LICENSE("GPL"); |