text: /*
   *
   *   Copyright (c) International Business Machines  Corp., 2001
   *
   *   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  /*
   * In this header file keep all flags and other
   * structures that will be needed in both kernel
   * and user space. Specifically the ioctl flags
   * will go in here so that in user space a program
   * can specify flags for the ioctl call.
   *
   * author: Kai Zhao
   * date:   08/25/2003
   *
   */
  
  #define tagp_DRIVER_NAME	"ltp agp module"
  #define DEVICE_NAME		"/dev/tagp"
  #define TAGP_MAJOR      252
  #define MAG_NUM			'k'
  #ifndef SET_MODULE_OWNER
  #define SET_MODULE_OWNER(dev) ((dev)->owner = THIS_MODULE)
  #endif
  
  /* put ioctl flags here, use the _IO macro which is
   found in linux/ioctl.h, takes a letter, and an
   integer */
  
  #define TEST_PCI_FIND_DEV   			_IO(MAG_NUM, 1)
  #define TEST_BACKEND_ACQUIRE			_IO(MAG_NUM, 2)
  #define TEST_BACKEND_RELEASE			_IO(MAG_NUM, 3)
  #define TEST_ALLOC_BRIDGE			_IO(MAG_NUM, 4)
  #define TEST_PUT_BRIDGE				_IO(MAG_NUM, 5)
  #define TEST_CREATE_AND_FREE_MEMORY		_IO(MAG_NUM, 6)
  //#define TEST_FREE_MEMORY			_IO(MAG_NUM, 7)
  #define TEST_COPY_INFO				_IO(MAG_NUM, 8)
  //#define TEST_ALLOC_MEMORY_AND_BAND_UNBAND	_IO(MAG_NUM, 9)
  #define TEST_GET_VERSION			_IO(MAG_NUM, 10)
  #define TEST_GENERIC_ENABLE			_IO(MAG_NUM, 11)
  #define TEST_NUM_ENTRIES			_IO(MAG_NUM, 12)
  #define TEST_GENERIC_CREATE_GATT_TABLE		_IO(MAG_NUM, 13)
  #define TEST_GENERIC_FREE_GATT_TABLE		_IO(MAG_NUM, 14)
  #define TEST_GENERIC_INSERT_MEMORY		_IO(MAG_NUM, 15)
  #define TEST_GENERIC_ALLOC_BY_TYPE		_IO(MAG_NUM, 16)
  #define TEST_GENERIC_ALLOC_PAGE			_IO(MAG_NUM, 17)
  #define TEST_ENABLE				_IO(MAG_NUM, 19)
  #define TEST_GLOBAL_CACHE_FLUSH			_IO(MAG_NUM, 20)
  #define TEST_GENERIC_MASK_MEMORY		_IO(MAG_NUM, 21)
  
  /* memory between the kernel and user space is
   seperated, so that if a structure is needed
   to be passed between kernel and user space
   a call must be made to copy_to_user or copy
   from user. Use this structure to streamline
   that process. For example: A function that
   writes to a disc takes in a ki_write_t
   pointer from userspace. In the user space
   program specify the length of the pointer as
   in_len, and in_data as the actual structure. */
  
  struct tagp_interface {
  	int     in_len;         // input data length
          caddr_t in_data;        // input data
          int     out_rc;         // return code from the test
          int     out_len;        // output data length
          caddr_t out_data;       // output data
  };
  
  typedef struct tagp_interface tagp_interface_t;
  
  
  
  
  
  