kernel/2.6.29.6-aldebaran-rt/drivers/media/video/lxv4l2/buf_mem.h

   1 /* <LIC_AMD_STD>
   2  * Copyright (c) 2005 Advanced Micro Devices, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called COPYING
  20  * </LIC_AMD_STD>  */
  21 /* <CTL_AMD_STD>
  22  * </CTL_AMD_STD>  */
  23 /* <DOC_AMD_STD>
  24  * </DOC_AMD_STD>  */
  25 #ifndef _BUFMEM_H_
  26 #define _BUFMEM_H_
  27
  28 extern unsigned long cim_fb_base;
  29 extern unsigned char *cim_fb_ptr;
  30
  31 typedef struct s_io_buf io_buf;
  32
  33 enum {
  34    io_none,
  35    io_queued,
  36    io_flipped,
  37 };
  38
  39 struct s_io_buf {
  40    struct list_head bfrq;
  41    int type, index, memory, flags;
  42    unsigned long sequence;
  43    jiffiez_t jiffies;
  44    unsigned long start;
  45    vid_mem *vmem;
  46    unsigned long phys_addr;
  47    unsigned long offset;
  48    unsigned char *bfrp;
  49 };
  50
  51 typedef struct s_io_queue io_queue;
  52
  53 struct s_io_queue {
  54    int io_type;
  55    spinlock_t lock;
  56    struct list_head rd_qbuf, rd_dqbuf;
  57    struct list_head wr_qbuf, wr_dqbuf;
  58    unsigned long sequence;
  59    unsigned long size;
  60    io_buf *stream_bfr;
  61    int count, offset;
  62    int nbfrs, mbfrs;
  63    io_buf bfrs[1];
  64 };
  65
  66 unsigned long phys_bfrsz(unsigned long size);
  67 int mmap_bufs(io_queue *qp,unsigned long offset,unsigned long start,
  68    unsigned long size,struct vm_area_struct *vma);
  69 void del_io_queue(io_queue **pqp);
  70 int new_buffer(io_queue *io,io_buf **pbp);
  71 int new_vio_queue(int io_type,int nbfrs,int size,io_queue **pio);
  72
  73 #endif