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Diffstat (limited to 'sound/soc/atmel/atmel-pcm.c')
-rw-r--r--sound/soc/atmel/atmel-pcm.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
deleted file mode 100644
index 8ae3fa5ac60a..000000000000
--- a/sound/soc/atmel/atmel-pcm.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * atmel-pcm.c -- ALSA PCM interface for the Atmel atmel SoC.
- *
- * Copyright (C) 2005 SAN People
- * Copyright (C) 2008 Atmel
- *
- * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
- *
- * Based on at91-pcm. by:
- * Frank Mandarino <fmandarino@endrelia.com>
- * Copyright 2006 Endrelia Technologies Inc.
- *
- * Based on pxa2xx-pcm.c by:
- *
- * Author: Nicolas Pitre
- * Created: Nov 30, 2004
- * Copyright: (C) 2004 MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include "atmel-pcm.h"
-
-static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
- int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = ATMEL_SSC_DMABUF_SIZE;
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = pcm->card->dev;
- buf->private_data = NULL;
- buf->area = dma_alloc_coherent(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
- pr_debug("atmel-pcm: alloc dma buffer: area=%p, addr=%p, size=%zu\n",
- (void *)buf->area, (void *)(long)buf->addr, size);
-
- if (!buf->area)
- return -ENOMEM;
-
- buf->bytes = size;
- return 0;
-}
-
-int atmel_pcm_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- return remap_pfn_range(vma, vma->vm_start,
- substream->dma_buffer.addr >> PAGE_SHIFT,
- vma->vm_end - vma->vm_start, vma->vm_page_prot);
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_mmap);
-
-int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_card *card = rtd->card->snd_card;
- struct snd_pcm *pcm = rtd->pcm;
- int ret;
-
- ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
-
- if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
- pr_debug("atmel-pcm: allocating PCM playback DMA buffer\n");
- ret = atmel_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- goto out;
- }
-
- if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
- pr_debug("atmel-pcm: allocating PCM capture DMA buffer\n");
- ret = atmel_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- goto out;
- }
- out:
- return ret;
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_new);
-
-void atmel_pcm_free(struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
- int stream;
-
- for (stream = 0; stream < 2; stream++) {
- substream = pcm->streams[stream].substream;
- if (!substream)
- continue;
-
- buf = &substream->dma_buffer;
- if (!buf->area)
- continue;
- dma_free_coherent(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
-}
-EXPORT_SYMBOL_GPL(atmel_pcm_free);
-