1/***************************************************************************
2 * Plug-in for HV7131R 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 hv7131r_init(struct sn9c102_device* cam)
27{
28	int err = 0;
29
30	switch (sn9c102_get_bridge(cam)) {
31	case BRIDGE_SN9C103:
32		err = sn9c102_write_const_regs(cam, {0x00, 0x03}, {0x1a, 0x04},
33					       {0x20, 0x05}, {0x20, 0x06},
34					       {0x03, 0x10}, {0x00, 0x14},
35					       {0x60, 0x17}, {0x0a, 0x18},
36					       {0xf0, 0x19}, {0x1d, 0x1a},
37					       {0x10, 0x1b}, {0x02, 0x1c},
38					       {0x03, 0x1d}, {0x0f, 0x1e},
39					       {0x0c, 0x1f}, {0x00, 0x20},
40					       {0x10, 0x21}, {0x20, 0x22},
41					       {0x30, 0x23}, {0x40, 0x24},
42					       {0x50, 0x25}, {0x60, 0x26},
43					       {0x70, 0x27}, {0x80, 0x28},
44					       {0x90, 0x29}, {0xa0, 0x2a},
45					       {0xb0, 0x2b}, {0xc0, 0x2c},
46					       {0xd0, 0x2d}, {0xe0, 0x2e},
47					       {0xf0, 0x2f}, {0xff, 0x30});
48		break;
49	case BRIDGE_SN9C105:
50	case BRIDGE_SN9C120:
51		err = sn9c102_write_const_regs(cam, {0x44, 0x01}, {0x40, 0x02},
52					       {0x00, 0x03}, {0x1a, 0x04},
53					       {0x44, 0x05}, {0x3e, 0x06},
54					       {0x1a, 0x07}, {0x03, 0x10},
55					       {0x08, 0x14}, {0xa3, 0x17},
56					       {0x4b, 0x18}, {0x00, 0x19},
57					       {0x1d, 0x1a}, {0x10, 0x1b},
58					       {0x02, 0x1c}, {0x03, 0x1d},
59					       {0x0f, 0x1e}, {0x0c, 0x1f},
60					       {0x00, 0x20}, {0x29, 0x21},
61					       {0x40, 0x22}, {0x54, 0x23},
62					       {0x66, 0x24}, {0x76, 0x25},
63					       {0x85, 0x26}, {0x94, 0x27},
64					       {0xa1, 0x28}, {0xae, 0x29},
65					       {0xbb, 0x2a}, {0xc7, 0x2b},
66					       {0xd3, 0x2c}, {0xde, 0x2d},
67					       {0xea, 0x2e}, {0xf4, 0x2f},
68					       {0xff, 0x30}, {0x00, 0x3F},
69					       {0xC7, 0x40}, {0x01, 0x41},
70					       {0x44, 0x42}, {0x00, 0x43},
71					       {0x44, 0x44}, {0x00, 0x45},
72					       {0x44, 0x46}, {0x00, 0x47},
73					       {0xC7, 0x48}, {0x01, 0x49},
74					       {0xC7, 0x4A}, {0x01, 0x4B},
75					       {0xC7, 0x4C}, {0x01, 0x4D},
76					       {0x44, 0x4E}, {0x00, 0x4F},
77					       {0x44, 0x50}, {0x00, 0x51},
78					       {0x44, 0x52}, {0x00, 0x53},
79					       {0xC7, 0x54}, {0x01, 0x55},
80					       {0xC7, 0x56}, {0x01, 0x57},
81					       {0xC7, 0x58}, {0x01, 0x59},
82					       {0x44, 0x5A}, {0x00, 0x5B},
83					       {0x44, 0x5C}, {0x00, 0x5D},
84					       {0x44, 0x5E}, {0x00, 0x5F},
85					       {0xC7, 0x60}, {0x01, 0x61},
86					       {0xC7, 0x62}, {0x01, 0x63},
87					       {0xC7, 0x64}, {0x01, 0x65},
88					       {0x44, 0x66}, {0x00, 0x67},
89					       {0x44, 0x68}, {0x00, 0x69},
90					       {0x44, 0x6A}, {0x00, 0x6B},
91					       {0xC7, 0x6C}, {0x01, 0x6D},
92					       {0xC7, 0x6E}, {0x01, 0x6F},
93					       {0xC7, 0x70}, {0x01, 0x71},
94					       {0x44, 0x72}, {0x00, 0x73},
95					       {0x44, 0x74}, {0x00, 0x75},
96					       {0x44, 0x76}, {0x00, 0x77},
97					       {0xC7, 0x78}, {0x01, 0x79},
98					       {0xC7, 0x7A}, {0x01, 0x7B},
99					       {0xC7, 0x7C}, {0x01, 0x7D},
100					       {0x44, 0x7E}, {0x00, 0x7F},
101					       {0x14, 0x84}, {0x00, 0x85},
102					       {0x27, 0x86}, {0x00, 0x87},
103					       {0x07, 0x88}, {0x00, 0x89},
104					       {0xEC, 0x8A}, {0x0f, 0x8B},
105					       {0xD8, 0x8C}, {0x0f, 0x8D},
106					       {0x3D, 0x8E}, {0x00, 0x8F},
107					       {0x3D, 0x90}, {0x00, 0x91},
108					       {0xCD, 0x92}, {0x0f, 0x93},
109					       {0xf7, 0x94}, {0x0f, 0x95},
110					       {0x0C, 0x96}, {0x00, 0x97},
111					       {0x00, 0x98}, {0x66, 0x99},
112					       {0x05, 0x9A}, {0x00, 0x9B},
113					       {0x04, 0x9C}, {0x00, 0x9D},
114					       {0x08, 0x9E}, {0x00, 0x9F},
115					       {0x2D, 0xC0}, {0x2D, 0xC1},
116					       {0x3A, 0xC2}, {0x05, 0xC3},
117					       {0x04, 0xC4}, {0x3F, 0xC5},
118					       {0x00, 0xC6}, {0x00, 0xC7},
119					       {0x50, 0xC8}, {0x3C, 0xC9},
120					       {0x28, 0xCA}, {0xD8, 0xCB},
121					       {0x14, 0xCC}, {0xEC, 0xCD},
122					       {0x32, 0xCE}, {0xDD, 0xCF},
123					       {0x32, 0xD0}, {0xDD, 0xD1},
124					       {0x6A, 0xD2}, {0x50, 0xD3},
125					       {0x00, 0xD4}, {0x00, 0xD5},
126					       {0x00, 0xD6});
127		break;
128	default:
129		break;
130	}
131
132	err += sn9c102_i2c_write(cam, 0x20, 0x00);
133	err += sn9c102_i2c_write(cam, 0x21, 0xd6);
134	err += sn9c102_i2c_write(cam, 0x25, 0x06);
135
136	return err;
137}
138
139
140static int hv7131r_get_ctrl(struct sn9c102_device* cam,
141			    struct v4l2_control* ctrl)
142{
143	switch (ctrl->id) {
144	case V4L2_CID_GAIN:
145		if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0)
146			return -EIO;
147		return 0;
148	case V4L2_CID_RED_BALANCE:
149		if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0)
150			return -EIO;
151		ctrl->value = ctrl->value & 0x3f;
152		return 0;
153	case V4L2_CID_BLUE_BALANCE:
154		if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0)
155			return -EIO;
156		ctrl->value = ctrl->value & 0x3f;
157		return 0;
158	case SN9C102_V4L2_CID_GREEN_BALANCE:
159		if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0)
160			return -EIO;
161		ctrl->value = ctrl->value & 0x3f;
162		return 0;
163	case V4L2_CID_BLACK_LEVEL:
164		if ((ctrl->value = sn9c102_i2c_read(cam, 0x01)) < 0)
165			return -EIO;
166		ctrl->value = (ctrl->value & 0x08) ? 1 : 0;
167		return 0;
168	default:
169		return -EINVAL;
170	}
171}
172
173
174static int hv7131r_set_ctrl(struct sn9c102_device* cam,
175			    const struct v4l2_control* ctrl)
176{
177	int err = 0;
178
179	switch (ctrl->id) {
180	case V4L2_CID_GAIN:
181		err += sn9c102_i2c_write(cam, 0x30, ctrl->value);
182		break;
183	case V4L2_CID_RED_BALANCE:
184		err += sn9c102_i2c_write(cam, 0x31, ctrl->value);
185		break;
186	case V4L2_CID_BLUE_BALANCE:
187		err += sn9c102_i2c_write(cam, 0x33, ctrl->value);
188		break;
189	case SN9C102_V4L2_CID_GREEN_BALANCE:
190		err += sn9c102_i2c_write(cam, 0x32, ctrl->value);
191		break;
192	case V4L2_CID_BLACK_LEVEL:
193		{
194			int r = sn9c102_i2c_read(cam, 0x01);
195			if (r < 0)
196				return -EIO;
197			err += sn9c102_i2c_write(cam, 0x01,
198						 (ctrl->value<<3) | (r&0xf7));
199		}
200		break;
201	default:
202		return -EINVAL;
203	}
204
205	return err ? -EIO : 0;
206}
207
208
209static int hv7131r_set_crop(struct sn9c102_device* cam,
210			    const struct v4l2_rect* rect)
211{
212	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
213	int err = 0;
214	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1,
215	   v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
216
217	err += sn9c102_write_reg(cam, h_start, 0x12);
218	err += sn9c102_write_reg(cam, v_start, 0x13);
219
220	return err;
221}
222
223
224static int hv7131r_set_pix_format(struct sn9c102_device* cam,
225				  const struct v4l2_pix_format* pix)
226{
227	int err = 0;
228
229	switch (sn9c102_get_bridge(cam)) {
230	case BRIDGE_SN9C103:
231		if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
232			err += sn9c102_write_reg(cam, 0xa0, 0x19);
233			err += sn9c102_i2c_write(cam, 0x01, 0x04);
234		} else {
235			err += sn9c102_write_reg(cam, 0x30, 0x19);
236			err += sn9c102_i2c_write(cam, 0x01, 0x04);
237		}
238		break;
239	case BRIDGE_SN9C105:
240	case BRIDGE_SN9C120:
241		if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) {
242			err += sn9c102_write_reg(cam, 0xa5, 0x17);
243			err += sn9c102_i2c_write(cam, 0x01, 0x24);
244		} else {
245			err += sn9c102_write_reg(cam, 0xa3, 0x17);
246			err += sn9c102_i2c_write(cam, 0x01, 0x04);
247		}
248		break;
249	default:
250		break;
251	}
252
253	return err;
254}
255
256
257static const struct sn9c102_sensor hv7131r = {
258	.name = "HV7131R",
259	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
260	.supported_bridge = BRIDGE_SN9C103 | BRIDGE_SN9C105 | BRIDGE_SN9C120,
261	.sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE,
262	.frequency = SN9C102_I2C_100KHZ,
263	.interface = SN9C102_I2C_2WIRES,
264	.i2c_slave_id = 0x11,
265	.init = &hv7131r_init,
266	.qctrl = {
267		{
268			.id = V4L2_CID_GAIN,
269			.type = V4L2_CTRL_TYPE_INTEGER,
270			.name = "global gain",
271			.minimum = 0x00,
272			.maximum = 0xff,
273			.step = 0x01,
274			.default_value = 0x40,
275			.flags = 0,
276		},
277		{
278			.id = V4L2_CID_RED_BALANCE,
279			.type = V4L2_CTRL_TYPE_INTEGER,
280			.name = "red balance",
281			.minimum = 0x00,
282			.maximum = 0x3f,
283			.step = 0x01,
284			.default_value = 0x08,
285			.flags = 0,
286		},
287		{
288			.id = V4L2_CID_BLUE_BALANCE,
289			.type = V4L2_CTRL_TYPE_INTEGER,
290			.name = "blue balance",
291			.minimum = 0x00,
292			.maximum = 0x3f,
293			.step = 0x01,
294			.default_value = 0x1a,
295			.flags = 0,
296		},
297		{
298			.id = SN9C102_V4L2_CID_GREEN_BALANCE,
299			.type = V4L2_CTRL_TYPE_INTEGER,
300			.name = "green balance",
301			.minimum = 0x00,
302			.maximum = 0x3f,
303			.step = 0x01,
304			.default_value = 0x2f,
305			.flags = 0,
306		},
307		{
308			.id = V4L2_CID_BLACK_LEVEL,
309			.type = V4L2_CTRL_TYPE_BOOLEAN,
310			.name = "auto black level compensation",
311			.minimum = 0x00,
312			.maximum = 0x01,
313			.step = 0x01,
314			.default_value = 0x00,
315			.flags = 0,
316		},
317	},
318	.get_ctrl = &hv7131r_get_ctrl,
319	.set_ctrl = &hv7131r_set_ctrl,
320	.cropcap = {
321		.bounds = {
322			.left = 0,
323			.top = 0,
324			.width = 640,
325			.height = 480,
326		},
327		.defrect = {
328			.left = 0,
329			.top = 0,
330			.width = 640,
331			.height = 480,
332		},
333	},
334	.set_crop = &hv7131r_set_crop,
335	.pix_format = {
336		.width = 640,
337		.height = 480,
338		.pixelformat = V4L2_PIX_FMT_SBGGR8,
339		.priv = 8,
340	},
341	.set_pix_format = &hv7131r_set_pix_format
342};
343
344
345int sn9c102_probe_hv7131r(struct sn9c102_device* cam)
346{
347	int devid, err;
348
349	err = sn9c102_write_const_regs(cam, {0x09, 0x01}, {0x44, 0x02},
350				       {0x34, 0x01}, {0x20, 0x17},
351				       {0x34, 0x01}, {0x46, 0x01});
352
353	devid = sn9c102_i2c_try_read(cam, &hv7131r, 0x00);
354	if (err || devid < 0)
355		return -EIO;
356
357	if (devid != 0x02)
358		return -ENODEV;
359
360	sn9c102_attach_sensor(cam, &hv7131r);
361
362	return 0;
363}
364