drivers/media/video/smiapp/smiapp-regs.h

   1 /*
   2  * include/media/smiapp/smiapp-regs.h
   3  *
   4  * Generic driver for SMIA/SMIA++ compliant camera modules
   5  *
   6  * Copyright (C) 2011--2012 Nokia Corporation
   7  * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * 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., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef SMIAPP_REGS_H
  26 #define SMIAPP_REGS_H
  27
  28 #include <linux/i2c.h>
  29 #include <linux/types.h>
  30
  31 /* Use upper 8 bits of the type field for flags */
  32 #define SMIA_REG_FLAG_FLOAT             (1 << 24)
  33
  34 #define SMIA_REG_8BIT                   1
  35 #define SMIA_REG_16BIT                  2
  36 #define SMIA_REG_32BIT                  4
  37 struct smia_reg {
  38         u16 type;
  39         u16 reg;                        /* 16-bit offset */
  40         u32 val;                        /* 8/16/32-bit value */
  41 };
  42
  43 struct smiapp_sensor;
  44
  45 int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val);
  46 int smiapp_read_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val);
  47 int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val);
  48
  49 #endif