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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Driver for the s5k4aa sensor
4  *
5  * Copyright (C) 2008 Erik Andrén
6  * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
7  * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
8  *
9  * Portions of code to USB interface and ALi driver software,
10  * Copyright (c) 2006 Willem Duinker
11  * v4l2 interface modeled after the V4L2 driver
12  * for SN9C10x PC Camera Controllers
13  */
14 
15 #ifndef M5602_S5K4AA_H_
16 #define M5602_S5K4AA_H_
17 
18 #include <linux/dmi.h>
19 
20 #include "m5602_sensor.h"
21 
22 /*****************************************************************************/
23 
24 #define S5K4AA_PAGE_MAP			0xec
25 
26 #define S5K4AA_PAGE_MAP_0		0x00
27 #define S5K4AA_PAGE_MAP_1		0x01
28 #define S5K4AA_PAGE_MAP_2		0x02
29 
30 /* Sensor register definitions for page 0x02 */
31 #define S5K4AA_READ_MODE		0x03
32 #define S5K4AA_ROWSTART_HI		0x04
33 #define S5K4AA_ROWSTART_LO		0x05
34 #define S5K4AA_COLSTART_HI		0x06
35 #define S5K4AA_COLSTART_LO		0x07
36 #define S5K4AA_WINDOW_HEIGHT_HI		0x08
37 #define S5K4AA_WINDOW_HEIGHT_LO		0x09
38 #define S5K4AA_WINDOW_WIDTH_HI		0x0a
39 #define S5K4AA_WINDOW_WIDTH_LO		0x0b
40 #define S5K4AA_GLOBAL_GAIN__		0x0f
41 /* sync lost, if too low, reduces frame rate if too high */
42 #define S5K4AA_H_BLANK_HI__		0x1d
43 #define S5K4AA_H_BLANK_LO__		0x1e
44 #define S5K4AA_EXPOSURE_HI		0x17
45 #define S5K4AA_EXPOSURE_LO		0x18
46 #define S5K4AA_BRIGHTNESS		0x1f /* (digital?) gain : 5 bits */
47 #define S5K4AA_GAIN			0x20 /* (analogue?) gain : 7 bits */
48 #define S5K4AA_NOISE_SUPP		0x37
49 
50 #define S5K4AA_RM_ROW_SKIP_4X		0x08
51 #define S5K4AA_RM_ROW_SKIP_2X		0x04
52 #define S5K4AA_RM_COL_SKIP_4X		0x02
53 #define S5K4AA_RM_COL_SKIP_2X		0x01
54 #define S5K4AA_RM_H_FLIP		0x40
55 #define S5K4AA_RM_V_FLIP		0x80
56 
57 #define S5K4AA_DEFAULT_GAIN		0x5f
58 #define S5K4AA_DEFAULT_BRIGHTNESS	0x10
59 
60 /*****************************************************************************/
61 
62 /* Kernel module parameters */
63 extern int force_sensor;
64 extern bool dump_sensor;
65 
66 int s5k4aa_probe(struct sd *sd);
67 int s5k4aa_init(struct sd *sd);
68 int s5k4aa_init_controls(struct sd *sd);
69 int s5k4aa_start(struct sd *sd);
70 void s5k4aa_disconnect(struct sd *sd);
71 
72 static const struct m5602_sensor s5k4aa = {
73 	.name = "S5K4AA",
74 	.i2c_slave_id = 0x5a,
75 	.i2c_regW = 2,
76 
77 	.probe = s5k4aa_probe,
78 	.init = s5k4aa_init,
79 	.init_controls = s5k4aa_init_controls,
80 	.start = s5k4aa_start,
81 	.disconnect = s5k4aa_disconnect,
82 };
83 
84 #endif
85