target_firmware/magpie_fw_dev/target/inc/k2/vdesc_api.h

   1 /*
   2  * @File: VBUF_api.h
   3  *
   4  * @Abstract: Host Interface api
   5  *
   6  * @Notes:
   7  *
   8  * Copyright (c) 2008 Atheros Communications Inc.
   9  * All rights reserved.
  10  *
  11  */
  12
  13 #ifndef _VDESC_API_H
  14 #define _VDESC_API_H
  15
  16 #define MAX_HW_DESC_SIZE 20
  17
  18 typedef struct _VDESC
  19 {
  20         struct _VDESC   *next_desc;
  21         A_UINT8         *buf_addr;
  22         A_UINT16        buf_size;
  23         A_UINT16        data_offset;
  24         A_UINT16        data_size;
  25         A_UINT16        control;
  26         A_UINT8         hw_desc_buf[MAX_HW_DESC_SIZE];
  27 } VDESC;
  28
  29 #define VDESC_HW_TO_VDESC(hwdesc)   ((VDESC *)(((A_UINT32 *)hwdesc - 4)))
  30
  31 struct vdesc_api {
  32         void        (*_init)(int nDesc);
  33         VDESC*      (*_alloc_vdesc)();
  34         A_UINT8*    (*_get_hw_desc)(VDESC *desc);
  35         void        (*_swap_vdesc)(VDESC *dest, VDESC *src);
  36
  37         /* room to expand this table by another table */
  38         void *pReserved;
  39 };
  40
  41 extern void vdesc_module_install(struct vdesc_api *apis);
  42
  43 #endif