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
|
/*
* Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
* Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
* Copyright (c) 2002, 2003 Tuukka Toivonen
* Copyright (c) 2008 Erik Andrén
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* P/N 861037: Sensor HDCS1000 ASIC STV0600
* P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
* P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
* P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
* P/N 861075-0040: Sensor HDCS1000 ASIC
* P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
* P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "stv06xx_vv6410.h"
static struct v4l2_pix_format vv6410_mode[] = {
{
356,
292,
V4L2_PIX_FMT_SGRBG8,
V4L2_FIELD_NONE,
.sizeimage = 356 * 292,
.bytesperline = 356,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0
}
};
static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
int err = -EINVAL;
switch (ctrl->id) {
case V4L2_CID_HFLIP:
if (!gspca_dev->streaming)
return 0;
err = vv6410_set_hflip(gspca_dev, ctrl->val);
break;
case V4L2_CID_VFLIP:
if (!gspca_dev->streaming)
return 0;
err = vv6410_set_vflip(gspca_dev, ctrl->val);
break;
case V4L2_CID_GAIN:
err = vv6410_set_analog_gain(gspca_dev, ctrl->val);
break;
case V4L2_CID_EXPOSURE:
err = vv6410_set_exposure(gspca_dev, ctrl->val);
break;
}
return err;
}
static const struct v4l2_ctrl_ops vv6410_ctrl_ops = {
.s_ctrl = vv6410_s_ctrl,
};
static int vv6410_probe(struct sd *sd)
{
u16 data;
int err;
err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
if (err < 0)
return -ENODEV;
if (data != 0x19)
return -ENODEV;
pr_info("vv6410 sensor detected\n");
sd->gspca_dev.cam.cam_mode = vv6410_mode;
sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
return 0;
}
static int vv6410_init_controls(struct sd *sd)
{
struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
v4l2_ctrl_handler_init(hdl, 2);
/* Disable the hardware VFLIP and HFLIP as we currently lack a
mechanism to adjust the image offset in such a way that
we don't need to renegotiate the announced format */
/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
/* V4L2_CID_HFLIP, 0, 1, 1, 0); */
/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
/* V4L2_CID_VFLIP, 0, 1, 1, 0); */
v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
V4L2_CID_EXPOSURE, 0, 32768, 1, 20000);
v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
V4L2_CID_GAIN, 0, 15, 1, 10);
return hdl->error;
}
static int vv6410_init(struct sd *sd)
{
int err = 0, i;
for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++)
stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
if (err < 0)
return err;
err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
ARRAY_SIZE(vv6410_sensor_init));
return (err < 0) ? err : 0;
}
static int vv6410_start(struct sd *sd)
{
int err;
struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
struct cam *cam = &sd->gspca_dev.cam;
u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
if (priv & VV6410_SUBSAMPLE) {
PDEBUG(D_CONF, "Enabling subsampling");
stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
} else {
stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
}
/* Turn on LED */
err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
if (err < 0)
return err;
err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
if (err < 0)
return err;
PDEBUG(D_STREAM, "Starting stream");
return 0;
}
static int vv6410_stop(struct sd *sd)
{
struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
int err;
/* Turn off LED */
err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
if (err < 0)
return err;
err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
if (err < 0)
return err;
PDEBUG(D_STREAM, "Halting stream");
return 0;
}
static int vv6410_dump(struct sd *sd)
{
u8 i;
int err = 0;
pr_info("Dumping all vv6410 sensor registers\n");
for (i = 0; i < 0xff && !err; i++) {
u16 data;
err = stv06xx_read_sensor(sd, i, &data);
pr_info("Register 0x%x contained 0x%x\n", i, data);
}
return (err < 0) ? err : 0;
}
static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
if (err < 0)
return err;
if (val)
i2c_data |= VV6410_HFLIP;
else
i2c_data &= ~VV6410_HFLIP;
PDEBUG(D_CONF, "Set horizontal flip to %d", val);
err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
return (err < 0) ? err : 0;
}
static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u16 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
if (err < 0)
return err;
if (val)
i2c_data |= VV6410_VFLIP;
else
i2c_data &= ~VV6410_VFLIP;
PDEBUG(D_CONF, "Set vertical flip to %d", val);
err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
return (err < 0) ? err : 0;
}
static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_CONF, "Set analog gain to %d", val);
err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
return (err < 0) ? err : 0;
}
static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
struct sd *sd = (struct sd *) gspca_dev;
unsigned int fine, coarse;
val = (val * val >> 14) + val / 4;
fine = val % VV6410_CIF_LINELENGTH;
coarse = min(512, val / VV6410_CIF_LINELENGTH);
PDEBUG(D_CONF, "Set coarse exposure to %d, fine exposure to %d",
coarse, fine);
err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
if (err < 0)
goto out;
err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
if (err < 0)
goto out;
err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8);
if (err < 0)
goto out;
err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff);
out:
return err;
}
|
