_bt865.c
上传用户:aoeyumen
上传日期:2007-01-06
资源大小:3329k
文件大小:3k
- /*
- **********************************************************************
- *
- * Copyright 1999, 2000 Creative Labs, Inc.
- *
- **********************************************************************
- *
- * Date Author Summary of changes
- * ---- ------ ------------------
- * October 20, 1999 Andrew de Quincey Rewrote and extended
- * Lucien Murray-Pitts original incomplete
- * driver.
- *
- * April 18, 1999 Andrew Veliath Original Driver
- * implementation
- *
- **********************************************************************
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- **********************************************************************
- */
- /**
- *
- * Overall driver for the Creative DXR2 card
- * Low level bt865 functions
- *
- */
- #include <dxr2.h>
- #include <bt865.h>
- #include <vxp524.h>
- // ****************************************************************************
- // BT865 operations
- static int dxr2_bt865_get_reg(bt865_t* instance, int reg);
- static int dxr2_bt865_set_reg(bt865_t* instance, int reg, int val);
- bt865_ops_t bt865_ops_table = {
- DXR2_LOGNAME,
- dxr2_bt865_get_reg,
- dxr2_bt865_set_reg
- };
- /**
- *
- * Get a BT865 register
- *
- * @param instance bt865 instance to use
- * @param reg register to get
- *
- * @return value on success (>=0), <0 o failure
- *
- */
- static int dxr2_bt865_get_reg(bt865_t* instance, int reg)
- {
- dxr2_t* dxr2Inst = (dxr2_t*) instance->data;
-
- return(vxp524_i2c_read_reg(dxr2Inst->vxp524Instance, BT865_CHIPID, reg));
- }
- /**
- *
- * Set a BT865 register
- *
- * @param instance bt865 instance to use
- * @param reg register to set
- * @param val value to set
- *
- * @return 0 on success, <0 o failure
- *
- */
- static int dxr2_bt865_set_reg(bt865_t* instance, int reg, int val)
- {
- dxr2_t* dxr2Inst = (dxr2_t*) instance->data;
- return(vxp524_i2c_write_reg(dxr2Inst->vxp524Instance, BT865_CHIPID, reg, val));
- }