Merge branch 'mv-merge'
[linux-2.6] / drivers / media / video / sn9c102 / sn9c102_tas5110c1b.c
1 /***************************************************************************
2  * Plug-in for TAS5110C1B 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 tas5110c1b;
26
27
28 static int tas5110c1b_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, 0x44, 0x01);
34         err += sn9c102_write_reg(cam, 0x00, 0x10);
35         err += sn9c102_write_reg(cam, 0x00, 0x11);
36         err += sn9c102_write_reg(cam, 0x0a, 0x14);
37         err += sn9c102_write_reg(cam, 0x60, 0x17);
38         err += sn9c102_write_reg(cam, 0x06, 0x18);
39         err += sn9c102_write_reg(cam, 0xfb, 0x19);
40
41         err += sn9c102_i2c_write(cam, 0xc0, 0x80);
42
43         return err;
44 }
45
46
47 static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
48                                const struct v4l2_control* ctrl)
49 {
50         int err = 0;
51
52         switch (ctrl->id) {
53         case V4L2_CID_GAIN:
54                 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
55                 break;
56         default:
57                 return -EINVAL;
58         }
59
60         return err ? -EIO : 0;
61 }
62
63
64 static int tas5110c1b_set_crop(struct sn9c102_device* cam,
65                                const struct v4l2_rect* rect)
66 {
67         struct sn9c102_sensor* s = &tas5110c1b;
68         int err = 0;
69         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
70            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
71
72         err += sn9c102_write_reg(cam, h_start, 0x12);
73         err += sn9c102_write_reg(cam, v_start, 0x13);
74
75         /* Don't change ! */
76         err += sn9c102_write_reg(cam, 0x14, 0x1a);
77         err += sn9c102_write_reg(cam, 0x0a, 0x1b);
78         err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
79
80         return err;
81 }
82
83
84 static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
85                                      const struct v4l2_pix_format* pix)
86 {
87         int err = 0;
88
89         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
90                 err += sn9c102_write_reg(cam, 0x2b, 0x19);
91         else
92                 err += sn9c102_write_reg(cam, 0xfb, 0x19);
93
94         return err;
95 }
96
97
98 static struct sn9c102_sensor tas5110c1b = {
99         .name = "TAS5110C1B",
100         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
101         .sysfs_ops = SN9C102_I2C_WRITE,
102         .frequency = SN9C102_I2C_100KHZ,
103         .interface = SN9C102_I2C_3WIRES,
104         .init = &tas5110c1b_init,
105         .qctrl = {
106                 {
107                         .id = V4L2_CID_GAIN,
108                         .type = V4L2_CTRL_TYPE_INTEGER,
109                         .name = "global gain",
110                         .minimum = 0x00,
111                         .maximum = 0xf6,
112                         .step = 0x01,
113                         .default_value = 0x40,
114                         .flags = 0,
115                 },
116         },
117         .set_ctrl = &tas5110c1b_set_ctrl,
118         .cropcap = {
119                 .bounds = {
120                         .left = 0,
121                         .top = 0,
122                         .width = 352,
123                         .height = 288,
124                 },
125                 .defrect = {
126                         .left = 0,
127                         .top = 0,
128                         .width = 352,
129                         .height = 288,
130                 },
131         },
132         .set_crop = &tas5110c1b_set_crop,
133         .pix_format = {
134                 .width = 352,
135                 .height = 288,
136                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
137                 .priv = 8,
138         },
139         .set_pix_format = &tas5110c1b_set_pix_format
140 };
141
142
143 int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
144 {
145         const struct usb_device_id tas5110c1b_id_table[] = {
146                 { USB_DEVICE(0x0c45, 0x6001), },
147                 { USB_DEVICE(0x0c45, 0x6005), },
148                 { USB_DEVICE(0x0c45, 0x60ab), },
149                 { }
150         };
151
152         /* Sensor detection is based on USB pid/vid */
153         if (!sn9c102_match_id(cam, tas5110c1b_id_table))
154                 return -ENODEV;
155
156         sn9c102_attach_sensor(cam, &tas5110c1b);
157
158         return 0;
159 }