1/***************************************************************************
2 * Plug-in for MT9V111 image sensor connected to the SN9C1xx PC Camera     *
3 * Controllers                                                             *
4 *                                                                         *
5 * Copyright (C) 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 mt9v111_init(struct sn9c102_device *cam)
27{
28	struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
29	int err = 0;
30
31	err = sn9c102_write_const_regs(cam, {0x44, 0x01}, {0x40, 0x02},
32				       {0x00, 0x03}, {0x1a, 0x04},
33				       {0x1f, 0x05}, {0x20, 0x06},
34				       {0x1f, 0x07}, {0x81, 0x08},
35				       {0x5c, 0x09}, {0x00, 0x0a},
36				       {0x00, 0x0b}, {0x00, 0x0c},
37				       {0x00, 0x0d}, {0x00, 0x0e},
38				       {0x00, 0x0f}, {0x03, 0x10},
39				       {0x00, 0x11}, {0x00, 0x12},
40				       {0x02, 0x13}, {0x14, 0x14},
41				       {0x28, 0x15}, {0x1e, 0x16},
42				       {0xe2, 0x17}, {0x06, 0x18},
43				       {0x00, 0x19}, {0x00, 0x1a},
44				       {0x00, 0x1b}, {0x08, 0x20},
45				       {0x39, 0x21}, {0x51, 0x22},
46				       {0x63, 0x23}, {0x73, 0x24},
47				       {0x82, 0x25}, {0x8f, 0x26},
48				       {0x9b, 0x27}, {0xa7, 0x28},
49				       {0xb1, 0x29}, {0xbc, 0x2a},
50				       {0xc6, 0x2b}, {0xcf, 0x2c},
51				       {0xd8, 0x2d}, {0xe1, 0x2e},
52				       {0xea, 0x2f}, {0xf2, 0x30},
53				       {0x13, 0x84}, {0x00, 0x85},
54				       {0x25, 0x86}, {0x00, 0x87},
55				       {0x07, 0x88}, {0x00, 0x89},
56				       {0xee, 0x8a}, {0x0f, 0x8b},
57				       {0xe5, 0x8c}, {0x0f, 0x8d},
58				       {0x2e, 0x8e}, {0x00, 0x8f},
59				       {0x30, 0x90}, {0x00, 0x91},
60				       {0xd4, 0x92}, {0x0f, 0x93},
61				       {0xfc, 0x94}, {0x0f, 0x95},
62				       {0x14, 0x96}, {0x00, 0x97},
63				       {0x00, 0x98}, {0x60, 0x99},
64				       {0x07, 0x9a}, {0x40, 0x9b},
65				       {0x20, 0x9c}, {0x00, 0x9d},
66				       {0x00, 0x9e}, {0x00, 0x9f},
67				       {0x2d, 0xc0}, {0x2d, 0xc1},
68				       {0x3a, 0xc2}, {0x05, 0xc3},
69				       {0x04, 0xc4}, {0x3f, 0xc5},
70				       {0x00, 0xc6}, {0x00, 0xc7},
71				       {0x50, 0xc8}, {0x3c, 0xc9},
72				       {0x28, 0xca}, {0xd8, 0xcb},
73				       {0x14, 0xcc}, {0xec, 0xcd},
74				       {0x32, 0xce}, {0xdd, 0xcf},
75				       {0x2d, 0xd0}, {0xdd, 0xd1},
76				       {0x6a, 0xd2}, {0x50, 0xd3},
77				       {0x60, 0xd4}, {0x00, 0xd5},
78				       {0x00, 0xd6});
79
80	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
81					 0x00, 0x01, 0, 0);
82	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
83					 0x00, 0x01, 0, 0);
84	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0d,
85					 0x00, 0x00, 0, 0);
86	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
87					 0x04, 0x80, 0, 0);
88	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
89					 0x00, 0x04, 0, 0);
90	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x08,
91					 0x00, 0x08, 0, 0);
92	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x02,
93					 0x00, 0x16, 0, 0);
94	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x03,
95					 0x01, 0xe7, 0, 0);
96	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x04,
97					 0x02, 0x87, 0, 0);
98	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x06,
99					 0x00, 0x40, 0, 0);
100	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x05,
101					 0x00, 0x09, 0, 0);
102	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x07,
103					 0x30, 0x02, 0, 0);
104	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x0c,
105					 0x00, 0x00, 0, 0);
106	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x12,
107					 0x00, 0xb0, 0, 0);
108	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x13,
109					 0x00, 0x7c, 0, 0);
110	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x1e,
111					 0x00, 0x00, 0, 0);
112	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
113					 0x00, 0x00, 0, 0);
114	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x20,
115					 0x00, 0x00, 0, 0);
116	err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id, 0x01,
117					 0x00, 0x04, 0, 0);
118
119	return err;
120}
121
122static int mt9v111_get_ctrl(struct sn9c102_device *cam,
123			    struct v4l2_control *ctrl)
124{
125	struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
126	u8 data[2];
127	int err = 0;
128
129	switch (ctrl->id) {
130	case V4L2_CID_VFLIP:
131		if (sn9c102_i2c_try_raw_read(cam, s, s->i2c_slave_id, 0x20, 2,
132					     data) < 0)
133			return -EIO;
134		ctrl->value = data[1] & 0x80 ? 1 : 0;
135		return 0;
136	default:
137		return -EINVAL;
138	}
139
140	return err ? -EIO : 0;
141}
142
143static int mt9v111_set_ctrl(struct sn9c102_device *cam,
144			    const struct v4l2_control *ctrl)
145{
146	struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
147	int err = 0;
148
149	switch (ctrl->id) {
150	case V4L2_CID_VFLIP:
151		err += sn9c102_i2c_try_raw_write(cam, s, 4, s->i2c_slave_id,
152						 0x20,
153						 ctrl->value ? 0x80 : 0x00,
154						 ctrl->value ? 0x80 : 0x00, 0,
155						 0);
156		break;
157	default:
158		return -EINVAL;
159	}
160
161	return err ? -EIO : 0;
162}
163
164static int mt9v111_set_crop(struct sn9c102_device *cam,
165			    const struct v4l2_rect *rect)
166{
167	struct sn9c102_sensor *s = sn9c102_get_sensor(cam);
168	int err = 0;
169	u8 v_start = (u8) (rect->top - s->cropcap.bounds.top) + 2;
170
171	err += sn9c102_write_reg(cam, v_start, 0x13);
172
173	return err;
174}
175
176static int mt9v111_set_pix_format(struct sn9c102_device *cam,
177				  const struct v4l2_pix_format *pix)
178{
179	int err = 0;
180
181	if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
182		err += sn9c102_write_reg(cam, 0xb4, 0x17);
183	} else {
184		err += sn9c102_write_reg(cam, 0xe2, 0x17);
185	}
186
187	return err;
188}
189
190
191static const struct sn9c102_sensor mt9v111 = {
192	.name = "MT9V111",
193	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
194	.supported_bridge = BRIDGE_SN9C105 | BRIDGE_SN9C120,
195	.frequency = SN9C102_I2C_100KHZ,
196	.interface = SN9C102_I2C_2WIRES,
197	.i2c_slave_id = 0x5c,
198	.init = &mt9v111_init,
199	.qctrl = {
200		{
201			.id = V4L2_CID_VFLIP,
202			.type = V4L2_CTRL_TYPE_BOOLEAN,
203			.name = "vertical mirror",
204			.minimum = 0,
205			.maximum = 1,
206			.step = 1,
207			.default_value = 0,
208			.flags = 0,
209		},
210	},
211	.get_ctrl = &mt9v111_get_ctrl,
212	.set_ctrl = &mt9v111_set_ctrl,
213	.cropcap = {
214		.bounds = {
215			.left = 0,
216			.top = 0,
217			.width = 640,
218			.height = 480,
219		},
220		.defrect = {
221			.left = 0,
222			.top = 0,
223			.width = 640,
224			.height = 480,
225		},
226	},
227	.set_crop = &mt9v111_set_crop,
228	.pix_format = {
229		.width = 640,
230		.height = 480,
231		.pixelformat = V4L2_PIX_FMT_SBGGR8,
232		.priv = 8,
233	},
234	.set_pix_format = &mt9v111_set_pix_format
235};
236
237
238int sn9c102_probe_mt9v111(struct sn9c102_device *cam)
239{
240	u8 data[2];
241	int err = 0;
242
243	err += sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1},
244					{0x29, 0x01}, {0x42, 0x17},
245					{0x62, 0x17}, {0x08, 0x01});
246	err += sn9c102_i2c_try_raw_write(cam, &mt9v111, 4,
247					 mt9v111.i2c_slave_id, 0x01, 0x00,
248					 0x04, 0, 0);
249	if (err || sn9c102_i2c_try_raw_read(cam, &mt9v111,
250					    mt9v111.i2c_slave_id, 0x36, 2,
251					    data) < 0)
252		return -EIO;
253
254	if (data[0] != 0x82 || data[1] != 0x3a)
255		return -ENODEV;
256
257	sn9c102_attach_sensor(cam, &mt9v111);
258
259	return 0;
260}
261