1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
|
/*
* Driver for the po1030 sensor
*
* Copyright (c) 2008 Erik Andrén
* Copyright (c) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
* Copyright (c) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
*
* Portions of code to USB interface and ALi driver software,
* Copyright (c) 2006 Willem Duinker
* v4l2 interface modeled after the V4L2 driver
* for SN9C10x PC Camera Controllers
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
*/
#include "m5602_po1030.h"
static void po1030_dump_registers(struct sd *sd);
int po1030_probe(struct sd *sd)
{
u8 prod_id = 0, ver_id = 0, i;
if (force_sensor) {
if (force_sensor == PO1030_SENSOR) {
info("Forcing a %s sensor", po1030.name);
goto sensor_found;
}
/* If we want to force another sensor, don't try to probe this
* one */
return -ENODEV;
}
info("Probing for a po1030 sensor");
/* Run the pre-init to actually probe the unit */
for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {
u8 data = preinit_po1030[i][2];
if (preinit_po1030[i][0] == SENSOR)
m5602_write_sensor(sd,
preinit_po1030[i][1], &data, 1);
else
m5602_write_bridge(sd, preinit_po1030[i][1], data);
}
if (m5602_read_sensor(sd, 0x3, &prod_id, 1))
return -ENODEV;
if (m5602_read_sensor(sd, 0x4, &ver_id, 1))
return -ENODEV;
if ((prod_id == 0x02) && (ver_id == 0xef)) {
info("Detected a po1030 sensor");
goto sensor_found;
}
return -ENODEV;
sensor_found:
sd->gspca_dev.cam.cam_mode = po1030.modes;
sd->gspca_dev.cam.nmodes = po1030.nmodes;
sd->desc->ctrls = po1030.ctrls;
sd->desc->nctrls = ARRAY_SIZE(po1030_ctrls);
return 0;
}
int po1030_init(struct sd *sd)
{
int i, err = 0;
/* Init the sensor */
for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
u8 data[2] = {0x00, 0x00};
switch (init_po1030[i][0]) {
case BRIDGE:
err = m5602_write_bridge(sd,
init_po1030[i][1],
init_po1030[i][2]);
break;
case SENSOR:
data[0] = init_po1030[i][2];
err = m5602_write_sensor(sd,
init_po1030[i][1], data, 1);
break;
default:
info("Invalid stream command, exiting init");
return -EINVAL;
}
}
if (dump_sensor)
po1030_dump_registers(sd);
return err;
}
int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_H,
&i2c_data, 1);
if (err < 0)
return err;
*val = (i2c_data << 8);
err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_M,
&i2c_data, 1);
*val |= i2c_data;
PDEBUG(D_V4L2, "Exposure read as %d", *val);
return err;
}
int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
PDEBUG(D_V4L2, "Set exposure to %d", val & 0xffff);
i2c_data = ((val & 0xff00) >> 8);
PDEBUG(D_V4L2, "Set exposure to high byte to 0x%x",
i2c_data);
err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_H,
&i2c_data, 1);
if (err < 0)
return err;
i2c_data = (val & 0xff);
PDEBUG(D_V4L2, "Set exposure to low byte to 0x%x",
i2c_data);
err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_M,
&i2c_data, 1);
return err;
}
int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read global gain %d", *val);
return err;
}
int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
*val = (i2c_data >> 7) & 0x01 ;
PDEBUG(D_V4L2, "Read hflip %d", *val);
return err;
}
int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
PDEBUG(D_V4L2, "Set hflip %d", val);
err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = (0x7f & i2c_data) | ((val & 0x01) << 7);
err = m5602_write_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
return err;
}
int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
*val = (i2c_data >> 6) & 0x01;
PDEBUG(D_V4L2, "Read vflip %d", *val);
return err;
}
int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
PDEBUG(D_V4L2, "Set vflip %d", val);
err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = (i2c_data & 0xbf) | ((val & 0x01) << 6);
err = m5602_write_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
return err;
}
int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set global gain to %d", i2c_data);
err = m5602_write_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
return err;
}
int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_RED_GAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read red gain %d", *val);
return err;
}
int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set red gain to %d", i2c_data);
err = m5602_write_sensor(sd, PO1030_REG_RED_GAIN,
&i2c_data, 1);
return err;
}
int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, PO1030_REG_BLUE_GAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read blue gain %d", *val);
return err;
}
int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set blue gain to %d", i2c_data);
err = m5602_write_sensor(sd, PO1030_REG_BLUE_GAIN,
&i2c_data, 1);
return err;
}
int po1030_power_down(struct sd *sd)
{
return 0;
}
static void po1030_dump_registers(struct sd *sd)
{
int address;
u8 value = 0;
info("Dumping the po1030 sensor core registers");
for (address = 0; address < 0x7f; address++) {
m5602_read_sensor(sd, address, &value, 1);
info("register 0x%x contains 0x%x",
address, value);
}
info("po1030 register state dump complete");
info("Probing for which registers that are read/write");
for (address = 0; address < 0xff; address++) {
u8 old_value, ctrl_value;
u8 test_value[2] = {0xff, 0xff};
m5602_read_sensor(sd, address, &old_value, 1);
m5602_write_sensor(sd, address, test_value, 1);
m5602_read_sensor(sd, address, &ctrl_value, 1);
if (ctrl_value == test_value[0])
info("register 0x%x is writeable", address);
else
info("register 0x%x is read only", address);
/* Restore original value */
m5602_write_sensor(sd, address, &old_value, 1);
}
}
|
