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 #include "sn9c102_devtable.h"
24
25
tas5130d1b_init(struct sn9c102_device * cam)26 static int tas5130d1b_init(struct sn9c102_device* cam)
27 {
28 int err;
29
30 err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x20, 0x17},
31 {0x04, 0x01}, {0x01, 0x10},
32 {0x00, 0x11}, {0x00, 0x14},
33 {0x60, 0x17}, {0x07, 0x18});
34
35 return err;
36 }
37
38
tas5130d1b_set_ctrl(struct sn9c102_device * cam,const struct v4l2_control * ctrl)39 static int tas5130d1b_set_ctrl(struct sn9c102_device* cam,
40 const struct v4l2_control* ctrl)
41 {
42 int err = 0;
43
44 switch (ctrl->id) {
45 case V4L2_CID_GAIN:
46 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
47 break;
48 case V4L2_CID_EXPOSURE:
49 err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
50 break;
51 default:
52 return -EINVAL;
53 }
54
55 return err ? -EIO : 0;
56 }
57
58
tas5130d1b_set_crop(struct sn9c102_device * cam,const struct v4l2_rect * rect)59 static int tas5130d1b_set_crop(struct sn9c102_device* cam,
60 const struct v4l2_rect* rect)
61 {
62 struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
63 u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
64 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
65 int err = 0;
66
67 err += sn9c102_write_reg(cam, h_start, 0x12);
68 err += sn9c102_write_reg(cam, v_start, 0x13);
69
70 /* Do NOT change! */
71 err += sn9c102_write_reg(cam, 0x1f, 0x1a);
72 err += sn9c102_write_reg(cam, 0x1a, 0x1b);
73 err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
74
75 return err;
76 }
77
78
tas5130d1b_set_pix_format(struct sn9c102_device * cam,const struct v4l2_pix_format * pix)79 static int tas5130d1b_set_pix_format(struct sn9c102_device* cam,
80 const struct v4l2_pix_format* pix)
81 {
82 int err = 0;
83
84 if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
85 err += sn9c102_write_reg(cam, 0x63, 0x19);
86 else
87 err += sn9c102_write_reg(cam, 0xf3, 0x19);
88
89 return err;
90 }
91
92
93 static const struct sn9c102_sensor tas5130d1b = {
94 .name = "TAS5130D1B",
95 .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
96 .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
97 .sysfs_ops = SN9C102_I2C_WRITE,
98 .frequency = SN9C102_I2C_100KHZ,
99 .interface = SN9C102_I2C_3WIRES,
100 .init = &tas5130d1b_init,
101 .qctrl = {
102 {
103 .id = V4L2_CID_GAIN,
104 .type = V4L2_CTRL_TYPE_INTEGER,
105 .name = "global gain",
106 .minimum = 0x00,
107 .maximum = 0xf6,
108 .step = 0x02,
109 .default_value = 0x00,
110 .flags = 0,
111 },
112 {
113 .id = V4L2_CID_EXPOSURE,
114 .type = V4L2_CTRL_TYPE_INTEGER,
115 .name = "exposure",
116 .minimum = 0x00,
117 .maximum = 0x47,
118 .step = 0x01,
119 .default_value = 0x00,
120 .flags = 0,
121 },
122 },
123 .set_ctrl = &tas5130d1b_set_ctrl,
124 .cropcap = {
125 .bounds = {
126 .left = 0,
127 .top = 0,
128 .width = 640,
129 .height = 480,
130 },
131 .defrect = {
132 .left = 0,
133 .top = 0,
134 .width = 640,
135 .height = 480,
136 },
137 },
138 .set_crop = &tas5130d1b_set_crop,
139 .pix_format = {
140 .width = 640,
141 .height = 480,
142 .pixelformat = V4L2_PIX_FMT_SBGGR8,
143 .priv = 8,
144 },
145 .set_pix_format = &tas5130d1b_set_pix_format
146 };
147
148
sn9c102_probe_tas5130d1b(struct sn9c102_device * cam)149 int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
150 {
151 const struct usb_device_id tas5130d1b_id_table[] = {
152 { USB_DEVICE(0x0c45, 0x6024), },
153 { USB_DEVICE(0x0c45, 0x6025), },
154 { USB_DEVICE(0x0c45, 0x60aa), },
155 { }
156 };
157
158 /* Sensor detection is based on USB pid/vid */
159 if (!sn9c102_match_id(cam, tas5130d1b_id_table))
160 return -ENODEV;
161
162 sn9c102_attach_sensor(cam, &tas5130d1b);
163
164 return 0;
165 }
166