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
25static int tas5110c1b_init(struct sn9c102_device* cam)
26{
27	int err = 0;
28
29	err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x44, 0x01},
30				       {0x00, 0x10}, {0x00, 0x11},
31				       {0x0a, 0x14}, {0x60, 0x17},
32				       {0x06, 0x18}, {0xfb, 0x19});
33
34	err += sn9c102_i2c_write(cam, 0xc0, 0x80);
35
36	return err;
37}
38
39
40static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
41			       const struct v4l2_control* ctrl)
42{
43	int err = 0;
44
45	switch (ctrl->id) {
46	case V4L2_CID_GAIN:
47		err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
48		break;
49	default:
50		return -EINVAL;
51	}
52
53	return err ? -EIO : 0;
54}
55
56
57static int tas5110c1b_set_crop(struct sn9c102_device* cam,
58			       const struct v4l2_rect* rect)
59{
60	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
61	int err = 0;
62	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
63	   v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
64
65	err += sn9c102_write_reg(cam, h_start, 0x12);
66	err += sn9c102_write_reg(cam, v_start, 0x13);
67
68	/* Don't change ! */
69	err += sn9c102_write_reg(cam, 0x14, 0x1a);
70	err += sn9c102_write_reg(cam, 0x0a, 0x1b);
71	err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
72
73	return err;
74}
75
76
77static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
78				     const struct v4l2_pix_format* pix)
79{
80	int err = 0;
81
82	if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
83		err += sn9c102_write_reg(cam, 0x2b, 0x19);
84	else
85		err += sn9c102_write_reg(cam, 0xfb, 0x19);
86
87	return err;
88}
89
90
91static const struct sn9c102_sensor tas5110c1b = {
92	.name = "TAS5110C1B",
93	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
94	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
95	.sysfs_ops = SN9C102_I2C_WRITE,
96	.frequency = SN9C102_I2C_100KHZ,
97	.interface = SN9C102_I2C_3WIRES,
98	.init = &tas5110c1b_init,
99	.qctrl = {
100		{
101			.id = V4L2_CID_GAIN,
102			.type = V4L2_CTRL_TYPE_INTEGER,
103			.name = "global gain",
104			.minimum = 0x00,
105			.maximum = 0xf6,
106			.step = 0x01,
107			.default_value = 0x40,
108			.flags = 0,
109		},
110	},
111	.set_ctrl = &tas5110c1b_set_ctrl,
112	.cropcap = {
113		.bounds = {
114			.left = 0,
115			.top = 0,
116			.width = 352,
117			.height = 288,
118		},
119		.defrect = {
120			.left = 0,
121			.top = 0,
122			.width = 352,
123			.height = 288,
124		},
125	},
126	.set_crop = &tas5110c1b_set_crop,
127	.pix_format = {
128		.width = 352,
129		.height = 288,
130		.pixelformat = V4L2_PIX_FMT_SBGGR8,
131		.priv = 8,
132	},
133	.set_pix_format = &tas5110c1b_set_pix_format
134};
135
136
137int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
138{
139	const struct usb_device_id tas5110c1b_id_table[] = {
140		{ USB_DEVICE(0x0c45, 0x6001), },
141		{ USB_DEVICE(0x0c45, 0x6005), },
142		{ USB_DEVICE(0x0c45, 0x60ab), },
143		{ }
144	};
145
146	/* Sensor detection is based on USB pid/vid */
147	if (!sn9c102_match_id(cam, tas5110c1b_id_table))
148		return -ENODEV;
149
150	sn9c102_attach_sensor(cam, &tas5110c1b);
151
152	return 0;
153}
154