diff options
Diffstat (limited to 'ANDROID_3.4.5/include/sound/memalloc.h')
-rw-r--r-- | ANDROID_3.4.5/include/sound/memalloc.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/ANDROID_3.4.5/include/sound/memalloc.h b/ANDROID_3.4.5/include/sound/memalloc.h deleted file mode 100644 index c4250621..00000000 --- a/ANDROID_3.4.5/include/sound/memalloc.h +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright (c) by Jaroslav Kysela <perex@perex.cz> - * Takashi Iwai <tiwai@suse.de> - * - * Generic memory allocators - * - * - * 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 - * - */ - -#ifndef __SOUND_MEMALLOC_H -#define __SOUND_MEMALLOC_H - -struct device; - -/* - * buffer device info - */ -struct snd_dma_device { - int type; /* SNDRV_DMA_TYPE_XXX */ - struct device *dev; /* generic device */ -}; - -#ifndef snd_dma_pci_data -#define snd_dma_pci_data(pci) (&(pci)->dev) -#define snd_dma_isa_data() NULL -#define snd_dma_continuous_data(x) ((struct device *)(unsigned long)(x)) -#endif - - -/* - * buffer types - */ -#define SNDRV_DMA_TYPE_UNKNOWN 0 /* not defined */ -#define SNDRV_DMA_TYPE_CONTINUOUS 1 /* continuous no-DMA memory */ -#define SNDRV_DMA_TYPE_DEV 2 /* generic device continuous */ -#ifdef CONFIG_SND_DMA_SGBUF -#define SNDRV_DMA_TYPE_DEV_SG 3 /* generic device SG-buffer */ -#else -#define SNDRV_DMA_TYPE_DEV_SG SNDRV_DMA_TYPE_DEV /* no SG-buf support */ -#endif - -/* - * info for buffer allocation - */ -struct snd_dma_buffer { - struct snd_dma_device dev; /* device type */ - unsigned char *area; /* virtual pointer */ - dma_addr_t addr; /* physical address */ - size_t bytes; /* buffer size in bytes */ - void *private_data; /* private for allocator; don't touch */ -}; - -#ifdef CONFIG_SND_DMA_SGBUF -/* - * Scatter-Gather generic device pages - */ -void *snd_malloc_sgbuf_pages(struct device *device, - size_t size, struct snd_dma_buffer *dmab, - size_t *res_size); -int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab); - -struct snd_sg_page { - void *buf; - dma_addr_t addr; -}; - -struct snd_sg_buf { - int size; /* allocated byte size */ - int pages; /* allocated pages */ - int tblsize; /* allocated table size */ - struct snd_sg_page *table; /* address table */ - struct page **page_table; /* page table (for vmap/vunmap) */ - struct device *dev; -}; - -/* - * return the pages matching with the given byte size - */ -static inline unsigned int snd_sgbuf_aligned_pages(size_t size) -{ - return (size + PAGE_SIZE - 1) >> PAGE_SHIFT; -} - -/* - * return the physical address at the corresponding offset - */ -static inline dma_addr_t snd_sgbuf_get_addr(struct snd_sg_buf *sgbuf, size_t offset) -{ - dma_addr_t addr = sgbuf->table[offset >> PAGE_SHIFT].addr; - addr &= PAGE_MASK; - return addr + offset % PAGE_SIZE; -} - -/* - * return the virtual address at the corresponding offset - */ -static inline void *snd_sgbuf_get_ptr(struct snd_sg_buf *sgbuf, size_t offset) -{ - return sgbuf->table[offset >> PAGE_SHIFT].buf + offset % PAGE_SIZE; -} -#endif /* CONFIG_SND_DMA_SGBUF */ - -/* allocate/release a buffer */ -int snd_dma_alloc_pages(int type, struct device *dev, size_t size, - struct snd_dma_buffer *dmab); -int snd_dma_alloc_pages_fallback(int type, struct device *dev, size_t size, - struct snd_dma_buffer *dmab); -void snd_dma_free_pages(struct snd_dma_buffer *dmab); - -/* buffer-preservation managements */ - -#define snd_dma_pci_buf_id(pci) (((unsigned int)(pci)->vendor << 16) | (pci)->device) - -size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id); -int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id); - -/* basic memory allocation functions */ -void *snd_malloc_pages(size_t size, gfp_t gfp_flags); -void snd_free_pages(void *ptr, size_t size); - -#endif /* __SOUND_MEMALLOC_H */ - |