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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-08 10:47:46 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-08 10:47:46 -0500
commita421018e8c10e5593a1fee076af72a66c3fe8ca3 (patch)
tree2854511845d0e07d33726a13eda6de1059a5c9df /sound/arm/devdma.c
parent3ad1f3b35e8309ec93454dbf89beaafcdb5312da (diff)
parent86e1d57e4f24ca27ce813bdc2afaac4adafcbaf4 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (294 commits) S3C64XX: Staticise platform data for PCM devices ASoC: Rename controls with a / in wm_hubs snd-fm801: autodetect SF64-PCR (tuner-only) card ALSA: tea575x-tuner: fix mute ASoC: au1x: dbdma2: plug memleak in pcm device creation error path ASoC: au1x: dbdma2: fix oops on soc device removal. ALSA: hda - Fix memory leaks in the previous patch ALSA: hda - Add ALC661/259, ALC892/888VD support ALSA: opti9xx: remove snd_opti9xx fields ALSA: aaci - Clean up duplicate code ALSA: usb - Fix mixer map for Hercules Gamesurround Muse Pocket LT ALSA: hda - Add position_fix quirk for HP dv3 ALSA: hda - Add a pin-fix for FSC Amilo Pi1505 ALSA: hda - Fix Cxt5047 test mode ASoC: pxa/raumfeld: adopt new snd_soc_dai_set_pll() API ASoC: sh: fsi: Add runtime PM support sh: ms7724se: Add runtime PM support for FSI ALSA: hda - Add a position_fix quirk for MSI Wind U115 ALSA: opti-miro: add PnP detection ALSA: opti-miro: separate comon probing code ...
Diffstat (limited to 'sound/arm/devdma.c')
-rw-r--r--sound/arm/devdma.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/sound/arm/devdma.c b/sound/arm/devdma.c
deleted file mode 100644
index 9d1e6665b546..000000000000
--- a/sound/arm/devdma.c
+++ /dev/null
@@ -1,80 +0,0 @@
1/*
2 * linux/sound/arm/devdma.c
3 *
4 * Copyright (C) 2003-2004 Russell King, All rights reserved.
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 version 2 as
8 * published by the Free Software Foundation.
9 *
10 * ARM DMA shim for ALSA.
11 */
12#include <linux/device.h>
13#include <linux/dma-mapping.h>
14
15#include <sound/core.h>
16#include <sound/pcm.h>
17
18#include "devdma.h"
19
20void devdma_hw_free(struct device *dev, struct snd_pcm_substream *substream)
21{
22 struct snd_pcm_runtime *runtime = substream->runtime;
23 struct snd_dma_buffer *buf = runtime->dma_buffer_p;
24
25 if (runtime->dma_area == NULL)
26 return;
27
28 if (buf != &substream->dma_buffer) {
29 dma_free_coherent(buf->dev.dev, buf->bytes, buf->area, buf->addr);
30 kfree(runtime->dma_buffer_p);
31 }
32
33 snd_pcm_set_runtime_buffer(substream, NULL);
34}
35
36int devdma_hw_alloc(struct device *dev, struct snd_pcm_substream *substream, size_t size)
37{
38 struct snd_pcm_runtime *runtime = substream->runtime;
39 struct snd_dma_buffer *buf = runtime->dma_buffer_p;
40 int ret = 0;
41
42 if (buf) {
43 if (buf->bytes >= size)
44 goto out;
45 devdma_hw_free(dev, substream);
46 }
47
48 if (substream->dma_buffer.area != NULL && substream->dma_buffer.bytes >= size) {
49 buf = &substream->dma_buffer;
50 } else {
51 buf = kmalloc(sizeof(struct snd_dma_buffer), GFP_KERNEL);
52 if (!buf)
53 goto nomem;
54
55 buf->dev.type = SNDRV_DMA_TYPE_DEV;
56 buf->dev.dev = dev;
57 buf->area = dma_alloc_coherent(dev, size, &buf->addr, GFP_KERNEL);
58 buf->bytes = size;
59 buf->private_data = NULL;
60
61 if (!buf->area)
62 goto free;
63 }
64 snd_pcm_set_runtime_buffer(substream, buf);
65 ret = 1;
66 out:
67 runtime->dma_bytes = size;
68 return ret;
69
70 free:
71 kfree(buf);
72 nomem:
73 return -ENOMEM;
74}
75
76int devdma_mmap(struct device *dev, struct snd_pcm_substream *substream, struct vm_area_struct *vma)
77{
78 struct snd_pcm_runtime *runtime = substream->runtime;
79 return dma_mmap_coherent(dev, vma, runtime->dma_area, runtime->dma_addr, runtime->dma_bytes);
80}