stv06xx.h revision 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd
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_H_
31#define STV06XX_H_
32
33#include <linux/slab.h>
34#include "gspca.h"
35
36#define MODULE_NAME "STV06xx"
37
38#define STV_ISOC_ENDPOINT_ADDR		0x81
39
40#define STV_R                           0x0509
41
42#define STV_REG23			0x0423
43
44/* Control registers of the STV0600 ASIC */
45#define STV_I2C_PARTNER			0x1420
46#define STV_I2C_VAL_REG_VAL_PAIRS_MIN1	0x1421
47#define STV_I2C_READ_WRITE_TOGGLE	0x1422
48#define STV_I2C_FLUSH			0x1423
49#define STV_I2C_SUCC_READ_REG_VALS	0x1424
50
51#define STV_ISO_ENABLE			0x1440
52#define STV_SCAN_RATE			0x1443
53#define STV_LED_CTRL			0x1445
54#define STV_STV0600_EMULATION		0x1446
55#define STV_REG00			0x1500
56#define STV_REG01			0x1501
57#define STV_REG02			0x1502
58#define STV_REG03			0x1503
59#define STV_REG04			0x1504
60
61#define STV_ISO_SIZE_L			0x15c1
62#define STV_ISO_SIZE_H			0x15c2
63
64/* Refers to the CIF 352x288 and QCIF 176x144 */
65/* 1: 288 lines, 2: 144 lines */
66#define STV_Y_CTRL		        0x15c3
67
68#define STV_RESET                       0x1620
69
70/* 0xa: 352 columns, 0x6: 176 columns */
71#define STV_X_CTRL			0x1680
72
73#define STV06XX_URB_MSG_TIMEOUT		5000
74
75#define I2C_MAX_BYTES			16
76#define I2C_MAX_WORDS			8
77
78#define I2C_BUFFER_LENGTH		0x23
79#define I2C_READ_CMD			3
80#define I2C_WRITE_CMD			1
81
82#define LED_ON				1
83#define LED_OFF				0
84
85/* STV06xx device descriptor */
86struct sd {
87	struct gspca_dev gspca_dev;
88
89	/* A pointer to the currently connected sensor */
90	const struct stv06xx_sensor *sensor;
91
92	/* Sensor private data */
93	void *sensor_priv;
94
95	/* The first 4 lines produced by the stv6422 are no good, this keeps
96	   track of how many bytes we still need to skip during a frame */
97	int to_skip;
98
99	/* Bridge / Camera type */
100	u8 bridge;
101	#define BRIDGE_STV600 0
102	#define BRIDGE_STV602 1
103	#define BRIDGE_STV610 2
104	#define BRIDGE_ST6422 3 /* With integrated sensor */
105};
106
107int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
108int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
109
110int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
111int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
112
113int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
114int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);
115
116#endif
117