1 /***************************************************************************
2 * Plug-in for TAS5130D1B image sensor connected to the SN9C1xx PC Camera *
3 * Controllers *
4 * *
5 * Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it> *
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., 675 Mass Ave, Cambridge, MA 02139, USA. *
20 ***************************************************************************/
21
22 #include "sn9c102_sensor.h"
23
24
25 static int tas5130d1b_init(struct sn9c102_device* cam)
26 {
27 int err;
28
29 err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x20, 0x17},
30 {0x04, 0x01}, {0x01, 0x10},
31 {0x00, 0x11}, {0x00, 0x14},
32 {0x60, 0x17}, {0x07, 0x18});
33
34 return err;
35 }
36
37
38 static int tas5130d1b_set_ctrl(struct sn9c102_device* cam,
39 const struct v4l2_control* ctrl)
40 {
41 int err = 0;
42
43 switch (ctrl->id) {
44 case V4L2_CID_GAIN:
45 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
46 break;
47 case V4L2_CID_EXPOSURE:
48 err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
49 break;
50 default:
51 return -EINVAL;
52 }
53
54 return err ? -EIO : 0;
55 }
56
57
58 static int tas5130d1b_set_crop(struct sn9c102_device* cam,
59 const struct v4l2_rect* rect)
60 {
61 struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
62 u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
63 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
64 int err = 0;
65
66 err += sn9c102_write_reg(cam, h_start, 0x12);
67 err += sn9c102_write_reg(cam, v_start, 0x13);
68
69 /* Do NOT change! */
70 err += sn9c102_write_reg(cam, 0x1f, 0x1a);
71 err += sn9c102_write_reg(cam, 0x1a, 0x1b);
72 err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
73
74 return err;
75 }
76
77
78 static int tas5130d1b_set_pix_format(struct sn9c102_device* cam,
79 const struct v4l2_pix_format* pix)
80 {
81 int err = 0;
82
83 if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
84 err += sn9c102_write_reg(cam, 0x63, 0x19);
85 else
86 err += sn9c102_write_reg(cam, 0xf3, 0x19);
87
88 return err;
89 }
90
91
92 static const struct sn9c102_sensor tas5130d1b = {
93 .name = "TAS5130D1B",
94 .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
95 .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
96 .sysfs_ops = SN9C102_I2C_WRITE,
97 .frequency = SN9C102_I2C_100KHZ,
98 .interface = SN9C102_I2C_3WIRES,
99 .init = &tas5130d1b_init,
100 .qctrl = {
101 {
102 .id = V4L2_CID_GAIN,
103 .type = V4L2_CTRL_TYPE_INTEGER,
104 .name = "global gain",
105 .minimum = 0x00,
106 .maximum = 0xf6,
107 .step = 0x02,
108 .default_value = 0x00,
109 .flags = 0,
110 },
111 {
112 .id = V4L2_CID_EXPOSURE,
113 .type = V4L2_CTRL_TYPE_INTEGER,
114 .name = "exposure",
115 .minimum = 0x00,
116 .maximum = 0x47,
117 .step = 0x01,
118 .default_value = 0x00,
119 .flags = 0,
120 },
121 },
122 .set_ctrl = &tas5130d1b_set_ctrl,
123 .cropcap = {
124 .bounds = {
125 .left = 0,
126 .top = 0,
127 .width = 640,
128 .height = 480,
129 },
130 .defrect = {
131 .left = 0,
132 .top = 0,
133 .width = 640,
134 .height = 480,
135 },
136 },
137 .set_crop = &tas5130d1b_set_crop,
138 .pix_format = {
139 .width = 640,
140 .height = 480,
141 .pixelformat = V4L2_PIX_FMT_SBGGR8,
142 .priv = 8,
143 },
144 .set_pix_format = &tas5130d1b_set_pix_format
145 };
146
147
148 int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
149 {
150 const struct usb_device_id tas5130d1b_id_table[] = {
151 { USB_DEVICE(0x0c45, 0x6024), },
152 { USB_DEVICE(0x0c45, 0x6025), },
153 { USB_DEVICE(0x0c45, 0x60aa), },
154 { }
155 };
156
157 /* Sensor detection is based on USB pid/vid */
158 if (!sn9c102_match_id(cam, tas5130d1b_id_table))
159 return -ENODEV;
160
161 sn9c102_attach_sensor(cam, &tas5130d1b);
162
163 return 0;
164 }
165
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