text: /*
   * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
   *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
   * Copyright (c) 2002, 2003 Tuukka Toivonen
   * Copyright (c) 2008 Erik Andrén
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   * P/N 861037:      Sensor HDCS1000        ASIC STV0600
   * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
   * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
   * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
   * P/N 861075-0040: Sensor HDCS1000        ASIC
   * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
   * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
   */
  
  #ifndef STV06XX_H_
  #define STV06XX_H_
  
  #include <linux/slab.h>
  #include "gspca.h"
  
  #define MODULE_NAME "STV06xx"
  
  #define STV_ISOC_ENDPOINT_ADDR		0x81
  
  #define STV_R                           0x0509
  
  #define STV_REG23			0x0423
  
  /* Control registers of the STV0600 ASIC */
  #define STV_I2C_PARTNER			0x1420
  #define STV_I2C_VAL_REG_VAL_PAIRS_MIN1	0x1421
  #define STV_I2C_READ_WRITE_TOGGLE	0x1422
  #define STV_I2C_FLUSH			0x1423
  #define STV_I2C_SUCC_READ_REG_VALS	0x1424
  
  #define STV_ISO_ENABLE			0x1440
  #define STV_SCAN_RATE			0x1443
  #define STV_LED_CTRL			0x1445
  #define STV_STV0600_EMULATION		0x1446
  #define STV_REG00			0x1500
  #define STV_REG01			0x1501
  #define STV_REG02			0x1502
  #define STV_REG03			0x1503
  #define STV_REG04			0x1504
  
  #define STV_ISO_SIZE_L			0x15c1
  #define STV_ISO_SIZE_H			0x15c2
  
  /* Refers to the CIF 352x288 and QCIF 176x144 */
  /* 1: 288 lines, 2: 144 lines */
  #define STV_Y_CTRL		        0x15c3
  
  #define STV_RESET                       0x1620
  
  /* 0xa: 352 columns, 0x6: 176 columns */
  #define STV_X_CTRL			0x1680
  
  #define STV06XX_URB_MSG_TIMEOUT		5000
  
  #define I2C_MAX_BYTES			16
  #define I2C_MAX_WORDS			8
  
  #define I2C_BUFFER_LENGTH		0x23
  #define I2C_READ_CMD			3
  #define I2C_WRITE_CMD			1
  
  #define LED_ON				1
  #define LED_OFF				0
  
  /* STV06xx device descriptor */
  struct sd {
  	struct gspca_dev gspca_dev;
  
  	/* A pointer to the currently connected sensor */
  	const struct stv06xx_sensor *sensor;
  
  	/* Sensor private data */
  	void *sensor_priv;
  
  	/* The first 4 lines produced by the stv6422 are no good, this keeps
  	   track of how many bytes we still need to skip during a frame */
  	int to_skip;
  
  	/* Bridge / Camera type */
  	u8 bridge;
  	#define BRIDGE_STV600 0
  	#define BRIDGE_STV602 1
  	#define BRIDGE_STV610 2
  	#define BRIDGE_ST6422 3 /* With integrated sensor */
  };
  
  int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
  int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
  
  int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
  int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
  
  int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
  int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);
  
  #endif
  