release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/media/video/gspca/stv06xx/stv06xx_sensor.h

   1 /*
   2  * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
   3  *                    Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
   4  * Copyright (c) 2002, 2003 Tuukka Toivonen
   5  * Copyright (c) 2008 Erik Andrén
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  22  * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
  23  * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
  24  * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
  25  * P/N 861075-0040: Sensor HDCS1000        ASIC
  26  * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
  27  * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
  28  */
  29
  30 #ifndef STV06XX_SENSOR_H_
  31 #define STV06XX_SENSOR_H_
  32
  33 #include "stv06xx.h"
  34
  35 #define IS_1020(sd)     ((sd)->sensor == &stv06xx_sensor_hdcs1020)
  36
  37 extern const struct stv06xx_sensor stv06xx_sensor_vv6410;
  38 extern const struct stv06xx_sensor stv06xx_sensor_hdcs1x00;
  39 extern const struct stv06xx_sensor stv06xx_sensor_hdcs1020;
  40 extern const struct stv06xx_sensor stv06xx_sensor_pb0100;
  41 extern const struct stv06xx_sensor stv06xx_sensor_st6422;
  42
  43 struct stv06xx_sensor {
  44         /* Defines the name of a sensor */
  45         char name[32];
  46
  47         /* Sensor i2c address */
  48         u8 i2c_addr;
  49
  50         /* Flush value*/
  51         u8 i2c_flush;
  52
  53         /* length of an i2c word */
  54         u8 i2c_len;
  55
  56         /* Probes if the sensor is connected */
  57         int (*probe)(struct sd *sd);
  58
  59         /* Performs a initialization sequence */
  60         int (*init)(struct sd *sd);
  61
  62         /* Executed at device disconnect */
  63         void (*disconnect)(struct sd *sd);
  64
  65         /* Reads a sensor register */
  66         int (*read_sensor)(struct sd *sd, const u8 address,
  67               u8 *i2c_data, const u8 len);
  68
  69         /* Writes to a sensor register */
  70         int (*write_sensor)(struct sd *sd, const u8 address,
  71               u8 *i2c_data, const u8 len);
  72
  73         /* Instructs the sensor to start streaming */
  74         int (*start)(struct sd *sd);
  75
  76         /* Instructs the sensor to stop streaming */
  77         int (*stop)(struct sd *sd);
  78
  79         /* Instructs the sensor to dump all its contents */
  80         int (*dump)(struct sd *sd);
  81 };
  82
  83 #endif