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[pohmelfs.git] / drivers / media / video / sn9c102 / sn9c102_hv7131r.c
blob4295887ff6098b610a50acddfd46a8a3e2f023d4
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
26 static 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
140 static 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
174 static 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
209 static 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
224 static 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
257 static 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
345 int 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 }