1/***************************************************************************
2 * Plug-in for TAS5130D1B 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#include "sn9c102_devtable.h"
24
25
26static int tas5130d1b_init(struct sn9c102_device* cam)
27{
28	int err;
29
30	err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x20, 0x17},
31				       {0x04, 0x01}, {0x01, 0x10},
32				       {0x00, 0x11}, {0x00, 0x14},
33				       {0x60, 0x17}, {0x07, 0x18});
34
35	return err;
36}
37
38
39static int tas5130d1b_set_ctrl(struct sn9c102_device* cam,
40			       const struct v4l2_control* ctrl)
41{
42	int err = 0;
43
44	switch (ctrl->id) {
45	case V4L2_CID_GAIN:
46		err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
47		break;
48	case V4L2_CID_EXPOSURE:
49		err += sn9c102_i2c_write(cam, 0x40, 0x47 - ctrl->value);
50		break;
51	default:
52		return -EINVAL;
53	}
54
55	return err ? -EIO : 0;
56}
57
58
59static int tas5130d1b_set_crop(struct sn9c102_device* cam,
60			       const struct v4l2_rect* rect)
61{
62	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
63	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 104,
64	   v_start = (u8)(rect->top - s->cropcap.bounds.top) + 12;
65	int err = 0;
66
67	err += sn9c102_write_reg(cam, h_start, 0x12);
68	err += sn9c102_write_reg(cam, v_start, 0x13);
69
70	/* Do NOT change! */
71	err += sn9c102_write_reg(cam, 0x1f, 0x1a);
72	err += sn9c102_write_reg(cam, 0x1a, 0x1b);
73	err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
74
75	return err;
76}
77
78
79static int tas5130d1b_set_pix_format(struct sn9c102_device* cam,
80				     const struct v4l2_pix_format* pix)
81{
82	int err = 0;
83
84	if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
85		err += sn9c102_write_reg(cam, 0x63, 0x19);
86	else
87		err += sn9c102_write_reg(cam, 0xf3, 0x19);
88
89	return err;
90}
91
92
93static const struct sn9c102_sensor tas5130d1b = {
94	.name = "TAS5130D1B",
95	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
96	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
97	.sysfs_ops = SN9C102_I2C_WRITE,
98	.frequency = SN9C102_I2C_100KHZ,
99	.interface = SN9C102_I2C_3WIRES,
100	.init = &tas5130d1b_init,
101	.qctrl = {
102		{
103			.id = V4L2_CID_GAIN,
104			.type = V4L2_CTRL_TYPE_INTEGER,
105			.name = "global gain",
106			.minimum = 0x00,
107			.maximum = 0xf6,
108			.step = 0x02,
109			.default_value = 0x00,
110			.flags = 0,
111		},
112		{
113			.id = V4L2_CID_EXPOSURE,
114			.type = V4L2_CTRL_TYPE_INTEGER,
115			.name = "exposure",
116			.minimum = 0x00,
117			.maximum = 0x47,
118			.step = 0x01,
119			.default_value = 0x00,
120			.flags = 0,
121		},
122	},
123	.set_ctrl = &tas5130d1b_set_ctrl,
124	.cropcap = {
125		.bounds = {
126			.left = 0,
127			.top = 0,
128			.width = 640,
129			.height = 480,
130		},
131		.defrect = {
132			.left = 0,
133			.top = 0,
134			.width = 640,
135			.height = 480,
136		},
137	},
138	.set_crop = &tas5130d1b_set_crop,
139	.pix_format = {
140		.width = 640,
141		.height = 480,
142		.pixelformat = V4L2_PIX_FMT_SBGGR8,
143		.priv = 8,
144	},
145	.set_pix_format = &tas5130d1b_set_pix_format
146};
147
148
149int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam)
150{
151	const struct usb_device_id tas5130d1b_id_table[] = {
152		{ USB_DEVICE(0x0c45, 0x6024), },
153		{ USB_DEVICE(0x0c45, 0x6025), },
154		{ USB_DEVICE(0x0c45, 0x60aa), },
155		{ }
156	};
157
158	/* Sensor detection is based on USB pid/vid */
159	if (!sn9c102_match_id(cam, tas5130d1b_id_table))
160		return -ENODEV;
161
162	sn9c102_attach_sensor(cam, &tas5130d1b);
163
164	return 0;
165}
166