V4L/DVB (3599a): Move drivers/usb/media to drivers/media/video
[linux-2.6.git] / drivers / media / video / sn9c102 / sn9c102_tas5130d1b.c
1 /***************************************************************************
2  * Plug-in for TAS5130D1B image sensor connected to the SN9C10x PC Camera  *
3  * Controllers                                                             *
4  *                                                                         *
5  * Copyright (C) 2004-2006 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 struct sn9c102_sensor tas5130d1b;
26
27
28 static int tas5130d1b_init(struct sn9c102_device* cam)
29 {
30         int err = 0;
31
32         err += sn9c102_write_reg(cam, 0x01, 0x01);
33         err += sn9c102_write_reg(cam, 0x20, 0x17);
34         err += sn9c102_write_reg(cam, 0x04, 0x01);
35         err += sn9c102_write_reg(cam, 0x01, 0x10);
36         err += sn9c102_write_reg(cam, 0x00, 0x11);
37         err += sn9c102_write_reg(cam, 0x00, 0x14);
38         err += sn9c102_write_reg(cam, 0x60, 0x17);
39         err += sn9c102_write_reg(cam, 0x07, 0x18);
40
41         return err;
42 }
43
44
45 static int tas5130d1b_set_ctrl(struct sn9c102_device* cam, 
46                                const struct v4l2_control* ctrl)
47 {
48         int err = 0;
49
50         switch (ctrl->id) {
51         case V4L2_CID_GAIN:
52                 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
53                 break;
54         case V4L2_CID_EXPOSURE:
55                 err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
56                 break;
57         default:
58                 return -EINVAL;
59         }
60
61         return err ? -EIO : 0;
62 }
63
64
65 static int tas5130d1b_set_crop(struct sn9c102_device* cam, 
66                                const struct v4l2_rect* rect)
67 {
68         struct sn9c102_sensor* s = &tas5130d1b;
69         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
70            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
71         int err = 0;
72
73         err += sn9c102_write_reg(cam, h_start, 0x12);
74         err += sn9c102_write_reg(cam, v_start, 0x13);
75
76         /* Do NOT change! */
77         err += sn9c102_write_reg(cam, 0x1f, 0x1a);
78         err += sn9c102_write_reg(cam, 0x1a, 0x1b);
79         err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
80
81         return err;
82 }
83
84
85 static int tas5130d1b_set_pix_format(struct sn9c102_device* cam, 
86                                      const struct v4l2_pix_format* pix)
87 {
88         int err = 0;
89
90         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
91                 err += sn9c102_write_reg(cam, 0x63, 0x19);
92         else
93                 err += sn9c102_write_reg(cam, 0xf3, 0x19);
94
95         return err;
96 }
97
98
99 static struct sn9c102_sensor tas5130d1b = {
100         .name = "TAS5130D1B",
101         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
102         .sysfs_ops = SN9C102_I2C_WRITE,
103         .frequency = SN9C102_I2C_100KHZ,
104         .interface = SN9C102_I2C_3WIRES,
105         .init = &tas5130d1b_init,
106         .qctrl = {
107                 {
108                         .id = V4L2_CID_GAIN,
109                         .type = V4L2_CTRL_TYPE_INTEGER,
110                         .name = "global gain",
111                         .minimum = 0x00,
112                         .maximum = 0xf6,
113                         .step = 0x02,
114                         .default_value = 0x00,
115                         .flags = 0,
116                 },
117                 {
118                         .id = V4L2_CID_EXPOSURE,
119                         .type = V4L2_CTRL_TYPE_INTEGER,
120                         .name = "exposure",
121                         .minimum = 0x00,
122                         .maximum = 0x47,
123                         .step = 0x01,
124                         .default_value = 0x00,
125                         .flags = 0,
126                 },
127         },
128         .set_ctrl = &tas5130d1b_set_ctrl,
129         .cropcap = {
130                 .bounds = {
131                         .left = 0,
132                         .top = 0,
133                         .width = 640,
134                         .height = 480,
135                 },
136                 .defrect = {
137                         .left = 0,
138                         .top = 0,
139                         .width = 640,
140                         .height = 480,
141                 },
142         },
143         .set_crop = &tas5130d1b_set_crop,
144         .pix_format = {
145                 .width = 640,
146                 .height = 480,
147                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
148                 .priv = 8,
149         },
150         .set_pix_format = &tas5130d1b_set_pix_format
151 };
152
153
154 int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
155 {
156         const struct usb_device_id tas5130d1b_id_table[] = {
157                 { USB_DEVICE(0x0c45, 0x6025), },
158                 { USB_DEVICE(0x0c45, 0x60aa), },
159                 { }
160         };
161
162         /* Sensor detection is based on USB pid/vid */
163         if (!sn9c102_match_id(cam, tas5130d1b_id_table))
164                 return -ENODEV;
165
166         sn9c102_attach_sensor(cam, &tas5130d1b);
167
168         return 0;
169 }