drivers/media/i2c/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@iki.fi>
   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
  19 #ifndef SMIAPP_REGS_H
  20 #define SMIAPP_REGS_H
  21
  22 #include <linux/i2c.h>
  23 #include <linux/types.h>
  24
  25 #define SMIAPP_REG_ADDR(reg)            ((u16)reg)
  26 #define SMIAPP_REG_WIDTH(reg)           ((u8)(reg >> 16))
  27 #define SMIAPP_REG_FLAGS(reg)           ((u8)(reg >> 24))
  28
  29 /* Use upper 8 bits of the type field for flags */
  30 #define SMIAPP_REG_FLAG_FLOAT           (1 << 24)
  31
  32 #define SMIAPP_REG_8BIT                 1
  33 #define SMIAPP_REG_16BIT                2
  34 #define SMIAPP_REG_32BIT                4
  35
  36 struct smiapp_sensor;
  37
  38 int smiapp_read_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 *val);
  39 int smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val);
  40 int smiapp_read_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val);
  41 int smiapp_write_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val);
  42 int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val);
  43
  44 #endif