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 */
73 struct 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
94 int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data);
95 int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data);
96
97 int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len);
98 int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len);
99
100 int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value);
101 int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value);
102
103 #endif