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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23
24#include "et61x251_sensor.h"
25
26
27static int tas5130d1b_init(struct et61x251_device* cam)
28{
29	int err = 0;
30
31	err += et61x251_write_reg(cam, 0x14, 0x01);
32	err += et61x251_write_reg(cam, 0x1b, 0x02);
33	err += et61x251_write_reg(cam, 0x02, 0x12);
34	err += et61x251_write_reg(cam, 0x0e, 0x60);
35	err += et61x251_write_reg(cam, 0x80, 0x61);
36	err += et61x251_write_reg(cam, 0xf0, 0x62);
37	err += et61x251_write_reg(cam, 0x03, 0x63);
38	err += et61x251_write_reg(cam, 0x14, 0x64);
39	err += et61x251_write_reg(cam, 0xf4, 0x65);
40	err += et61x251_write_reg(cam, 0x01, 0x66);
41	err += et61x251_write_reg(cam, 0x05, 0x67);
42	err += et61x251_write_reg(cam, 0x8f, 0x68);
43	err += et61x251_write_reg(cam, 0x0f, 0x8d);
44	err += et61x251_write_reg(cam, 0x08, 0x8e);
45
46	return err;
47}
48
49
50static int tas5130d1b_set_ctrl(struct et61x251_device* cam,
51			       const struct v4l2_control* ctrl)
52{
53	int err = 0;
54
55	switch (ctrl->id) {
56	case V4L2_CID_GAIN:
57		err += et61x251_i2c_raw_write(cam, 2, 0x20,
58					      0xf6-ctrl->value, 0, 0, 0,
59					      0, 0, 0, 0);
60		break;
61	case V4L2_CID_EXPOSURE:
62		err += et61x251_i2c_raw_write(cam, 2, 0x40,
63					      0x47-ctrl->value, 0, 0, 0,
64					      0, 0, 0, 0);
65		break;
66	default:
67		return -EINVAL;
68	}
69
70	return err ? -EIO : 0;
71}
72
73
74static const struct et61x251_sensor tas5130d1b = {
75	.name = "TAS5130D1B",
76	.interface = ET61X251_I2C_3WIRES,
77	.rsta = ET61X251_I2C_RSTA_STOP,
78	.active_pixel = {
79		.left = 106,
80		.top = 13,
81	},
82	.init = &tas5130d1b_init,
83	.qctrl = {
84		{
85			.id = V4L2_CID_GAIN,
86			.type = V4L2_CTRL_TYPE_INTEGER,
87			.name = "global gain",
88			.minimum = 0x00,
89			.maximum = 0xf6,
90			.step = 0x02,
91			.default_value = 0x0d,
92			.flags = 0,
93		},
94		{
95			.id = V4L2_CID_EXPOSURE,
96			.type = V4L2_CTRL_TYPE_INTEGER,
97			.name = "exposure",
98			.minimum = 0x00,
99			.maximum = 0x47,
100			.step = 0x01,
101			.default_value = 0x23,
102			.flags = 0,
103		},
104	},
105	.set_ctrl = &tas5130d1b_set_ctrl,
106	.cropcap = {
107		.bounds = {
108			.left = 0,
109			.top = 0,
110			.width = 640,
111			.height = 480,
112		},
113		.defrect = {
114			.left = 0,
115			.top = 0,
116			.width = 640,
117			.height = 480,
118		},
119	},
120	.pix_format = {
121		.width = 640,
122		.height = 480,
123		.pixelformat = V4L2_PIX_FMT_SBGGR8,
124		.priv = 8,
125	},
126};
127
128
129int et61x251_probe_tas5130d1b(struct et61x251_device* cam)
130{
131	const struct usb_device_id tas5130d1b_id_table[] = {
132		{ USB_DEVICE(0x102c, 0x6251), },
133		{ }
134	};
135
136	/* Sensor detection is based on USB pid/vid */
137	if (!et61x251_match_id(cam, tas5130d1b_id_table))
138		return -ENODEV;
139
140	et61x251_attach_sensor(cam, &tas5130d1b);
141
142	return 0;
143}
144