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
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.
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.
17 * P/N 861037: Sensor HDCS1000 ASIC STV0600
18 * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
19 * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
20 * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
21 * P/N 861075-0040: Sensor HDCS1000 ASIC
22 * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
23 * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
29 #include <linux/slab.h>
32 #define MODULE_NAME "STV06xx"
34 #define STV_ISOC_ENDPOINT_ADDR 0x81
38 #define STV_REG23 0x0423
40 /* Control registers of the STV0600 ASIC */
41 #define STV_I2C_PARTNER 0x1420
42 #define STV_I2C_VAL_REG_VAL_PAIRS_MIN1 0x1421
43 #define STV_I2C_READ_WRITE_TOGGLE 0x1422
44 #define STV_I2C_FLUSH 0x1423
45 #define STV_I2C_SUCC_READ_REG_VALS 0x1424
47 #define STV_ISO_ENABLE 0x1440
48 #define STV_SCAN_RATE 0x1443
49 #define STV_LED_CTRL 0x1445
50 #define STV_STV0600_EMULATION 0x1446
51 #define STV_REG00 0x1500
52 #define STV_REG01 0x1501
53 #define STV_REG02 0x1502
54 #define STV_REG03 0x1503
55 #define STV_REG04 0x1504
57 #define STV_ISO_SIZE_L 0x15c1
58 #define STV_ISO_SIZE_H 0x15c2
60 /* Refers to the CIF 352x288 and QCIF 176x144 */
61 /* 1: 288 lines, 2: 144 lines */
62 #define STV_Y_CTRL 0x15c3
64 #define STV_RESET 0x1620
66 /* 0xa: 352 columns, 0x6: 176 columns */
67 #define STV_X_CTRL 0x1680
69 #define STV06XX_URB_MSG_TIMEOUT 5000
71 #define I2C_MAX_BYTES 16
72 #define I2C_MAX_WORDS 8
74 #define I2C_BUFFER_LENGTH 0x23
75 #define I2C_READ_CMD 3
76 #define I2C_WRITE_CMD 1
81 /* STV06xx device descriptor */
83 struct gspca_dev gspca_dev;
85 /* A pointer to the currently connected sensor */
86 const struct stv06xx_sensor *sensor;
88 /* Sensor private data */
91 /* The first 4 lines produced by the stv6422 are no good, this keeps
92 track of how many bytes we still need to skip during a frame */
95 /* Bridge / Camera type */
97 #define BRIDGE_STV600 0
98 #define BRIDGE_STV602 1
99 #define BRIDGE_STV610 2
100 #define BRIDGE_ST6422 3 /* With integrated sensor */
103 int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
104 int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
106 int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
107 int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
109 int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
110 int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);