Linux 2.6.31-rc6
[linux-2.6] / drivers / media / video / sn9c102 / sn9c102_hv7131r.c
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 }