stv06xx.h

  1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
  4 *		      Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
  5 * Copyright (c) 2002, 2003 Tuukka Toivonen
  6 * Copyright (c) 2008 Erik Andrén
  7 *
  8 * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  9 * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
 10 * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
 11 * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
 12 * P/N 861075-0040: Sensor HDCS1000        ASIC
 13 * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
 14 * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
 15 */
 16
 17#ifndef STV06XX_H_
 18#define STV06XX_H_
 19
 20#include <linux/slab.h>
 21#include "gspca.h"
 22
 23#define MODULE_NAME "STV06xx"
 24
 25#define STV_ISOC_ENDPOINT_ADDR		0x81
 26
 27#define STV_R                           0x0509
 28
 29#define STV_REG23			0x0423
 30
 31/* Control registers of the STV0600 ASIC */
 32#define STV_I2C_PARTNER			0x1420
 33#define STV_I2C_VAL_REG_VAL_PAIRS_MIN1	0x1421
 34#define STV_I2C_READ_WRITE_TOGGLE	0x1422
 35#define STV_I2C_FLUSH			0x1423
 36#define STV_I2C_SUCC_READ_REG_VALS	0x1424
 37
 38#define STV_ISO_ENABLE			0x1440
 39#define STV_SCAN_RATE			0x1443
 40#define STV_LED_CTRL			0x1445
 41#define STV_STV0600_EMULATION		0x1446
 42#define STV_REG00			0x1500
 43#define STV_REG01			0x1501
 44#define STV_REG02			0x1502
 45#define STV_REG03			0x1503
 46#define STV_REG04			0x1504
 47
 48#define STV_ISO_SIZE_L			0x15c1
 49#define STV_ISO_SIZE_H			0x15c2
 50
 51/* Refers to the CIF 352x288 and QCIF 176x144 */
 52/* 1: 288 lines, 2: 144 lines */
 53#define STV_Y_CTRL			0x15c3
 54
 55#define STV_RESET                       0x1620
 56
 57/* 0xa: 352 columns, 0x6: 176 columns */
 58#define STV_X_CTRL			0x1680
 59
 60#define STV06XX_URB_MSG_TIMEOUT		5000
 61
 62#define I2C_MAX_BYTES			16
 63#define I2C_MAX_WORDS			8
 64
 65#define I2C_BUFFER_LENGTH		0x23
 66#define I2C_READ_CMD			3
 67#define I2C_WRITE_CMD			1
 68
 69#define LED_ON				1
 70#define LED_OFF				0
 71
 72/* STV06xx device descriptor */
 73struct sd {
 74	struct gspca_dev gspca_dev;
 75
 76	/* A pointer to the currently connected sensor */
 77	const struct stv06xx_sensor *sensor;
 78
 79	/* Sensor private data */
 80	void *sensor_priv;
 81
 82	/* The first 4 lines produced by the stv6422 are no good, this keeps
 83	   track of how many bytes we still need to skip during a frame */
 84	int to_skip;
 85
 86	/* Bridge / Camera type */
 87	u8 bridge;
 88	#define BRIDGE_STV600 0
 89	#define BRIDGE_STV602 1
 90	#define BRIDGE_STV610 2
 91	#define BRIDGE_ST6422 3 /* With integrated sensor */
 92};
 93
 94int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
 95int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
 96
 97int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
 98int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
 99
100int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
101int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);
102
103#endif