Commit | Line | Data |
---|---|---|
ed6e1d04 DA |
1 | /* |
2 | * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | * | |
4 | * Based on sound/soc/imx/imx-pcm-dma-mx2.c | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
20 | ||
ed6e1d04 | 21 | #include <linux/device.h> |
ed6e1d04 | 22 | #include <linux/init.h> |
ed6e1d04 | 23 | #include <linux/module.h> |
ed6e1d04 DA |
24 | |
25 | #include <sound/core.h> | |
ed6e1d04 | 26 | #include <sound/pcm.h> |
ed6e1d04 | 27 | #include <sound/soc.h> |
016ab467 | 28 | #include <sound/dmaengine_pcm.h> |
ed6e1d04 | 29 | |
ed6e1d04 DA |
30 | #include "mxs-pcm.h" |
31 | ||
a8956908 | 32 | static const struct snd_pcm_hardware snd_mxs_hardware = { |
ed6e1d04 DA |
33 | .info = SNDRV_PCM_INFO_MMAP | |
34 | SNDRV_PCM_INFO_MMAP_VALID | | |
35 | SNDRV_PCM_INFO_PAUSE | | |
36 | SNDRV_PCM_INFO_RESUME | | |
57364f9a LPC |
37 | SNDRV_PCM_INFO_INTERLEAVED | |
38 | SNDRV_PCM_INFO_HALF_DUPLEX, | |
ed6e1d04 DA |
39 | .period_bytes_min = 32, |
40 | .period_bytes_max = 8192, | |
41 | .periods_min = 1, | |
42 | .periods_max = 52, | |
43 | .buffer_bytes_max = 64 * 1024, | |
44 | .fifo_size = 32, | |
ed6e1d04 DA |
45 | }; |
46 | ||
a8956908 LPC |
47 | static const struct snd_dmaengine_pcm_config mxs_dmaengine_pcm_config = { |
48 | .pcm_hardware = &snd_mxs_hardware, | |
a8956908 | 49 | .prealloc_buffer_size = 64 * 1024, |
ed6e1d04 DA |
50 | }; |
51 | ||
fd582736 | 52 | int mxs_pcm_platform_register(struct device *dev) |
ed6e1d04 | 53 | { |
2650bc4f | 54 | return devm_snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config, |
a8956908 | 55 | SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX); |
ed6e1d04 | 56 | } |
4da3fe78 | 57 | EXPORT_SYMBOL_GPL(mxs_pcm_platform_register); |
ed6e1d04 | 58 | |
06c8eb9a | 59 | MODULE_LICENSE("GPL"); |