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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 | ||
31 | #ifdef CONFIG_ARCH_S3C64XX | |
32 | #define filter_fn pl08x_filter_id | |
87b132bc VK |
33 | #elif defined(CONFIG_ARCH_S3C24XX) |
34 | #define filter_fn s3c24xx_dma_filter | |
d37bdf73 MB |
35 | #else |
36 | #define filter_fn NULL | |
37 | #endif | |
38 | ||
39 | static const struct snd_dmaengine_pcm_config samsung_dmaengine_pcm_config = { | |
40 | .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, | |
41 | .compat_filter_fn = filter_fn, | |
42 | }; | |
43 | ||
44 | void samsung_asoc_init_dma_data(struct snd_soc_dai *dai, | |
45 | struct s3c_dma_params *playback, | |
46 | struct s3c_dma_params *capture) | |
47 | { | |
48 | struct snd_dmaengine_dai_dma_data *playback_data = NULL; | |
49 | struct snd_dmaengine_dai_dma_data *capture_data = NULL; | |
50 | ||
51 | if (playback) { | |
52 | playback_data = &playback->dma_data; | |
53 | playback_data->filter_data = (void *)playback->channel; | |
54 | playback_data->chan_name = playback->ch_name; | |
55 | playback_data->addr = playback->dma_addr; | |
56 | playback_data->addr_width = playback->dma_size; | |
57 | } | |
58 | if (capture) { | |
59 | capture_data = &capture->dma_data; | |
60 | capture_data->filter_data = (void *)capture->channel; | |
61 | capture_data->chan_name = capture->ch_name; | |
62 | capture_data->addr = capture->dma_addr; | |
63 | capture_data->addr_width = capture->dma_size; | |
64 | } | |
65 | ||
66 | snd_soc_dai_init_dma_data(dai, playback_data, capture_data); | |
67 | } | |
68 | EXPORT_SYMBOL_GPL(samsung_asoc_init_dma_data); | |
69 | ||
70 | int samsung_asoc_dma_platform_register(struct device *dev) | |
71 | { | |
55313bd3 TB |
72 | return devm_snd_dmaengine_pcm_register(dev, |
73 | &samsung_dmaengine_pcm_config, | |
74 | SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME | | |
75 | SND_DMAENGINE_PCM_FLAG_COMPAT); | |
d37bdf73 MB |
76 | } |
77 | EXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register); | |
78 | ||
d37bdf73 MB |
79 | MODULE_AUTHOR("Mark Brown <broonie@linaro.org>"); |
80 | MODULE_DESCRIPTION("Samsung dmaengine ASoC driver"); | |
81 | MODULE_LICENSE("GPL"); |