V4L/DVB (5474): SN9C1xx driver updates
[linux-2.6.git] / drivers / media / video / sn9c102 / sn9c102_tas5110c1b.c
1 /***************************************************************************
2  * Plug-in for TAS5110C1B 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 tas5110c1b_init(struct sn9c102_device* cam)
26 {
27         int err = 0;
28
29         err += sn9c102_write_reg(cam, 0x01, 0x01);
30         err += sn9c102_write_reg(cam, 0x44, 0x01);
31         err += sn9c102_write_reg(cam, 0x00, 0x10);
32         err += sn9c102_write_reg(cam, 0x00, 0x11);
33         err += sn9c102_write_reg(cam, 0x0a, 0x14);
34         err += sn9c102_write_reg(cam, 0x60, 0x17);
35         err += sn9c102_write_reg(cam, 0x06, 0x18);
36         err += sn9c102_write_reg(cam, 0xfb, 0x19);
37
38         err += sn9c102_i2c_write(cam, 0xc0, 0x80);
39
40         return err;
41 }
42
43
44 static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
45                                const struct v4l2_control* ctrl)
46 {
47         int err = 0;
48
49         switch (ctrl->id) {
50         case V4L2_CID_GAIN:
51                 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
52                 break;
53         default:
54                 return -EINVAL;
55         }
56
57         return err ? -EIO : 0;
58 }
59
60
61 static int tas5110c1b_set_crop(struct sn9c102_device* cam,
62                                const struct v4l2_rect* rect)
63 {
64         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
65         int err = 0;
66         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
67            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
68
69         err += sn9c102_write_reg(cam, h_start, 0x12);
70         err += sn9c102_write_reg(cam, v_start, 0x13);
71
72         /* Don't change ! */
73         err += sn9c102_write_reg(cam, 0x14, 0x1a);
74         err += sn9c102_write_reg(cam, 0x0a, 0x1b);
75         err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
76
77         return err;
78 }
79
80
81 static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
82                                      const struct v4l2_pix_format* pix)
83 {
84         int err = 0;
85
86         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
87                 err += sn9c102_write_reg(cam, 0x2b, 0x19);
88         else
89                 err += sn9c102_write_reg(cam, 0xfb, 0x19);
90
91         return err;
92 }
93
94
95 static struct sn9c102_sensor tas5110c1b = {
96         .name = "TAS5110C1B",
97         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
98         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
99         .sysfs_ops = SN9C102_I2C_WRITE,
100         .frequency = SN9C102_I2C_100KHZ,
101         .interface = SN9C102_I2C_3WIRES,
102         .init = &tas5110c1b_init,
103         .qctrl = {
104                 {
105                         .id = V4L2_CID_GAIN,
106                         .type = V4L2_CTRL_TYPE_INTEGER,
107                         .name = "global gain",
108                         .minimum = 0x00,
109                         .maximum = 0xf6,
110                         .step = 0x01,
111                         .default_value = 0x40,
112                         .flags = 0,
113                 },
114         },
115         .set_ctrl = &tas5110c1b_set_ctrl,
116         .cropcap = {
117                 .bounds = {
118                         .left = 0,
119                         .top = 0,
120                         .width = 352,
121                         .height = 288,
122                 },
123                 .defrect = {
124                         .left = 0,
125                         .top = 0,
126                         .width = 352,
127                         .height = 288,
128                 },
129         },
130         .set_crop = &tas5110c1b_set_crop,
131         .pix_format = {
132                 .width = 352,
133                 .height = 288,
134                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
135                 .priv = 8,
136         },
137         .set_pix_format = &tas5110c1b_set_pix_format
138 };
139
140
141 int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
142 {
143         const struct usb_device_id tas5110c1b_id_table[] = {
144                 { USB_DEVICE(0x0c45, 0x6001), },
145                 { USB_DEVICE(0x0c45, 0x6005), },
146                 { USB_DEVICE(0x0c45, 0x60ab), },
147                 { }
148         };
149
150         /* Sensor detection is based on USB pid/vid */
151         if (!sn9c102_match_id(cam, tas5110c1b_id_table))
152                 return -ENODEV;
153
154         sn9c102_attach_sensor(cam, &tas5110c1b);
155
156         return 0;
157 }