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  • only in /netgear-WNDR4500v2-V1.0.0.60_1.0.38/src/linux/linux-2.6/drivers/media/video/et61x251/
1/***************************************************************************
2 * Plug-in for TAS5130D1B image sensor connected to the ET61X[12]51        *
3 * PC Camera Controllers                                                   *
4 *                                                                         *
5 * Copyright (C) 2006-2007 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 "et61x251_sensor.h"
23
24
25static int tas5130d1b_init(struct et61x251_device* cam)
26{
27	int err = 0;
28
29	err += et61x251_write_reg(cam, 0x14, 0x01);
30	err += et61x251_write_reg(cam, 0x1b, 0x02);
31	err += et61x251_write_reg(cam, 0x02, 0x12);
32	err += et61x251_write_reg(cam, 0x0e, 0x60);
33	err += et61x251_write_reg(cam, 0x80, 0x61);
34	err += et61x251_write_reg(cam, 0xf0, 0x62);
35	err += et61x251_write_reg(cam, 0x03, 0x63);
36	err += et61x251_write_reg(cam, 0x14, 0x64);
37	err += et61x251_write_reg(cam, 0xf4, 0x65);
38	err += et61x251_write_reg(cam, 0x01, 0x66);
39	err += et61x251_write_reg(cam, 0x05, 0x67);
40	err += et61x251_write_reg(cam, 0x8f, 0x68);
41	err += et61x251_write_reg(cam, 0x0f, 0x8d);
42	err += et61x251_write_reg(cam, 0x08, 0x8e);
43
44	return err;
45}
46
47
48static int tas5130d1b_set_ctrl(struct et61x251_device* cam,
49			       const struct v4l2_control* ctrl)
50{
51	int err = 0;
52
53	switch (ctrl->id) {
54	case V4L2_CID_GAIN:
55		err += et61x251_i2c_raw_write(cam, 2, 0x20,
56					      0xf6-ctrl->value, 0, 0, 0,
57					      0, 0, 0, 0);
58		break;
59	case V4L2_CID_EXPOSURE:
60		err += et61x251_i2c_raw_write(cam, 2, 0x40,
61					      0x47-ctrl->value, 0, 0, 0,
62					      0, 0, 0, 0);
63		break;
64	default:
65		return -EINVAL;
66	}
67
68	return err ? -EIO : 0;
69}
70
71
72static struct et61x251_sensor tas5130d1b = {
73	.name = "TAS5130D1B",
74	.interface = ET61X251_I2C_3WIRES,
75	.rsta = ET61X251_I2C_RSTA_STOP,
76	.active_pixel = {
77		.left = 106,
78		.top = 13,
79	},
80	.init = &tas5130d1b_init,
81	.qctrl = {
82		{
83			.id = V4L2_CID_GAIN,
84			.type = V4L2_CTRL_TYPE_INTEGER,
85			.name = "global gain",
86			.minimum = 0x00,
87			.maximum = 0xf6,
88			.step = 0x02,
89			.default_value = 0x0d,
90			.flags = 0,
91		},
92		{
93			.id = V4L2_CID_EXPOSURE,
94			.type = V4L2_CTRL_TYPE_INTEGER,
95			.name = "exposure",
96			.minimum = 0x00,
97			.maximum = 0x47,
98			.step = 0x01,
99			.default_value = 0x23,
100			.flags = 0,
101		},
102	},
103	.set_ctrl = &tas5130d1b_set_ctrl,
104	.cropcap = {
105		.bounds = {
106			.left = 0,
107			.top = 0,
108			.width = 640,
109			.height = 480,
110		},
111		.defrect = {
112			.left = 0,
113			.top = 0,
114			.width = 640,
115			.height = 480,
116		},
117	},
118	.pix_format = {
119		.width = 640,
120		.height = 480,
121		.pixelformat = V4L2_PIX_FMT_SBGGR8,
122		.priv = 8,
123	},
124};
125
126
127int et61x251_probe_tas5130d1b(struct et61x251_device* cam)
128{
129	const struct usb_device_id tas5130d1b_id_table[] = {
130		{ USB_DEVICE(0x102c, 0x6251), },
131		{ }
132	};
133
134	/* Sensor detection is based on USB pid/vid */
135	if (!et61x251_match_id(cam, tas5130d1b_id_table))
136		return -ENODEV;
137
138	et61x251_attach_sensor(cam, &tas5130d1b);
139
140	return 0;
141}
142