drivers/cbus/cbus.h

   1 /*
   2  * drivers/cbus/cbus.h
   3  *
   4  * Copyright (C) 2004, 2005 Nokia Corporation
   5  *
   6  * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
   7  *            David Weinehall <david.weinehall@nokia.com>
   8  *
   9  * This file is subject to the terms and conditions of the GNU General
  10  * Public License. See the file "COPYING" in the main directory of this
  11  * archive for more details.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #ifndef __DRIVERS_CBUS_CBUS_H
  24 #define __DRIVERS_CBUS_CBUS_H
  25
  26 struct cbus_host {
  27         int clk_gpio, dat_gpio, sel_gpio;
  28         spinlock_t lock;
  29 };
  30
  31 extern struct cbus_host *cbus_host;
  32
  33 extern int cbus_read_reg(struct cbus_host *host, int dev, int reg);
  34 extern int cbus_write_reg(struct cbus_host *host, int dev, int reg, u16 val);
  35
  36 #endif /* __DRIVERS_CBUS_CBUS_H */