aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/media/sn9c102_tas5130d1b.c
blob: c7b339740bbf6b016335c529e03f9fdd107b2cab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/***************************************************************************
 * Plug-in for TAS5130D1B image sensor connected to the SN9C10x PC Camera  *
 * Controllers                                                             *
 *                                                                         *
 * Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it>  *
 *                                                                         *
 * This program is free software; you can redistribute it and/or modify    *
 * it under the terms of the GNU General Public License as published by    *
 * the Free Software Foundation; either version 2 of the License, or       *
 * (at your option) any later version.                                     *
 *                                                                         *
 * This program is distributed in the hope that it will be useful,         *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
 * GNU General Public License for more details.                            *
 *                                                                         *
 * You should have received a copy of the GNU General Public License       *
 * along with this program; if not, write to the Free Software             *
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.               *
 ***************************************************************************/

#include "sn9c102_sensor.h"


static struct sn9c102_sensor tas5130d1b;


static int tas5130d1b_init(struct sn9c102_device* cam)
{
	int err = 0;

	err += sn9c102_write_reg(cam, 0x01, 0x01);
	err += sn9c102_write_reg(cam, 0x20, 0x17);
	err += sn9c102_write_reg(cam, 0x04, 0x01);
	err += sn9c102_write_reg(cam, 0x01, 0x10);
	err += sn9c102_write_reg(cam, 0x00, 0x11);
	err += sn9c102_write_reg(cam, 0x00, 0x14);
	err += sn9c102_write_reg(cam, 0x60, 0x17);
	err += sn9c102_write_reg(cam, 0x07, 0x18);

	return err;
}


static int tas5130d1b_set_ctrl(struct sn9c102_device* cam, 
                               const struct v4l2_control* ctrl)
{
	int err = 0;

	switch (ctrl->id) {
	case V4L2_CID_GAIN:
		err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
		break;
	case V4L2_CID_EXPOSURE:
		err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
		break;
	default:
		return -EINVAL;
	}

	return err ? -EIO : 0;
}


static int tas5130d1b_set_crop(struct sn9c102_device* cam, 
                               const struct v4l2_rect* rect)
{
	struct sn9c102_sensor* s = &tas5130d1b;
	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
	   v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
	int err = 0;

	err += sn9c102_write_reg(cam, h_start, 0x12);
	err += sn9c102_write_reg(cam, v_start, 0x13);

	/* Do NOT change! */
	err += sn9c102_write_reg(cam, 0x1f, 0x1a);
	err += sn9c102_write_reg(cam, 0x1a, 0x1b);
	err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);

	return err;
}


static int tas5130d1b_set_pix_format(struct sn9c102_device* cam, 
                                     const struct v4l2_pix_format* pix)
{
	int err = 0;

	if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
		err += sn9c102_write_reg(cam, 0x63, 0x19);
	else
		err += sn9c102_write_reg(cam, 0xf3, 0x19);

	return err;
}


static struct sn9c102_sensor tas5130d1b = {
	.name = "TAS5130D1B",
	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
	.sysfs_ops = SN9C102_I2C_WRITE,
	.frequency = SN9C102_I2C_100KHZ,
	.interface = SN9C102_I2C_3WIRES,
	.init = &tas5130d1b_init,
	.qctrl = {
		{
			.id = V4L2_CID_GAIN,
			.type = V4L2_CTRL_TYPE_INTEGER,
			.name = "global gain",
			.minimum = 0x00,
			.maximum = 0xf6,
			.step = 0x02,
			.default_value = 0x00,
			.flags = 0,
		},
		{
			.id = V4L2_CID_EXPOSURE,
			.type = V4L2_CTRL_TYPE_INTEGER,
			.name = "exposure",
			.minimum = 0x00,
			.maximum = 0x47,
			.step = 0x01,
			.default_value = 0x00,
			.flags = 0,
		},
	},
	.set_ctrl = &tas5130d1b_set_ctrl,
	.cropcap = {
		.bounds = {
			.left = 0,
			.top = 0,
			.width = 640,
			.height = 480,
		},
		.defrect = {
			.left = 0,
			.top = 0,
			.width = 640,
			.height = 480,
		},
	},
	.set_crop = &tas5130d1b_set_crop,
	.pix_format = {
		.width = 640,
		.height = 480,
		.pixelformat = V4L2_PIX_FMT_SBGGR8,
		.priv = 8,
	},
	.set_pix_format = &tas5130d1b_set_pix_format
};


int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
{
	const struct usb_device_id tas5130d1b_id_table[] = {
		{ USB_DEVICE(0x0c45, 0x6025), },
		{ USB_DEVICE(0x0c45, 0x60aa), },
		{ }
	};

	/* Sensor detection is based on USB pid/vid */
	if (!sn9c102_match_id(cam, tas5130d1b_id_table))
		return -ENODEV;

	sn9c102_attach_sensor(cam, &tas5130d1b);

	return 0;
}