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
|
#ifndef __LINUX_OV511_H
#define __LINUX_OV511_H
#define OV511_DEBUG /* Turn on debug messages */
#ifdef OV511_DEBUG
# define PDEBUG(level, fmt, args...) \
if (debug >= level) printk("ov511: " fmt "\n" , ## args)
#else
# define PDEBUG(level, fmt, args...) do {} while(0)
#endif
/* Camera interface register numbers */
#define OV511_REG_CAMERA_DELAY_MODE 0x10
#define OV511_REG_CAMERA_EDGE_MODE 0x11
#define OV511_REG_CAMERA_CLAMPED_PIXEL_NUM 0x12
#define OV511_REG_CAMERA_CLAMPED_LINE_NUM 0x13
#define OV511_REG_CAMERA_PIXEL_DIVISOR 0x14
#define OV511_REG_CAMERA_LINE_DIVISOR 0x15
#define OV511_REG_CAMERA_DATA_INPUT_SELECT 0x16
#define OV511_REG_CAMERA_RESERVED_LINE_MODE 0x17
#define OV511_REG_CAMERA_BITMASK 0x18
/* Snapshot mode camera interface register numbers */
#define OV511_REG_SNAP_CAPTURED_FRAME 0x19
#define OV511_REG_SNAP_CLAMPED_PIXEL_NUM 0x1A
#define OV511_REG_SNAP_CLAMPED_LINE_NUM 0x1B
#define OV511_REG_SNAP_PIXEL_DIVISOR 0x1C
#define OV511_REG_SNAP_LINE_DIVISOR 0x1D
#define OV511_REG_SNAP_DATA_INPUT_SELECT 0x1E
#define OV511_REG_SNAP_BITMASK 0x1F
/* DRAM register numbers */
#define OV511_REG_DRAM_ENABLE_FLOW_CONTROL 0x20
#define OV511_REG_DRAM_READ_CYCLE_PREDICT 0x21
#define OV511_REG_DRAM_MANUAL_READ_CYCLE 0x22
#define OV511_REG_DRAM_REFRESH_COUNTER 0x23
/* ISO FIFO register numbers */
#define OV511_REG_FIFO_PACKET_SIZE 0x30
#define OV511_REG_FIFO_BITMASK 0x31
/* PIO register numbers */
#define OV511_REG_PIO_BITMASK 0x38
#define OV511_REG_PIO_DATA_PORT 0x39
#define OV511_REG_PIO_BIST 0x3E
/* I2C register numbers */
#define OV511_REG_I2C_CONTROL 0x40
#define OV511_REG_I2C_SLAVE_ID_WRITE 0x41
#define OV511_REG_I2C_SUB_ADDRESS_3_BYTE 0x42
#define OV511_REG_I2C_SUB_ADDRESS_2_BYTE 0x43
#define OV511_REG_I2C_SLAVE_ID_READ 0x44
#define OV511_REG_I2C_DATA_PORT 0x45
#define OV511_REG_I2C_CLOCK_PRESCALER 0x46
#define OV511_REG_I2C_TIME_OUT_COUNTER 0x47
/* I2C snapshot register numbers */
#define OV511_REG_I2C_SNAP_SUB_ADDRESS 0x48
#define OV511_REG_I2C_SNAP_DATA_PORT 0x49
/* System control register numbers */
#define OV511_REG_SYSTEM_RESET 0x50
#define OV511_RESET_UDC 0x01
#define OV511_RESET_I2C 0x02
#define OV511_RESET_FIFO 0x04
#define OV511_RESET_OMNICE 0x08
#define OV511_RESET_DRAM_INTF 0x10
#define OV511_RESET_CAMERA_INTF 0x20
#define OV511_RESET_OV511 0x40
#define OV511_RESET_NOREGS 0x3F /* All but OV511 & regs */
#define OV511_RESET_ALL 0x7F
#define OV511_REG_SYSTEM_CLOCK_DIVISOR 0x51
#define OV511_REG_SYSTEM_SNAPSHOT 0x52
#define OV511_REG_SYSTEM_INIT 0x53
#define OV511_REG_SYSTEM_PWR_CLK 0x54 /* OV511+ only */
#define OV511_REG_SYSTEM_LED_CTL 0x55 /* OV511+ only */
#define OV511_REG_SYSTEM_USER_DEFINED 0x5E
#define OV511_REG_SYSTEM_CUSTOM_ID 0x5F
/* OmniCE register numbers */
#define OV511_OMNICE_PREDICTION_HORIZ_Y 0x70
#define OV511_OMNICE_PREDICTION_HORIZ_UV 0x71
#define OV511_OMNICE_PREDICTION_VERT_Y 0x72
#define OV511_OMNICE_PREDICTION_VERT_UV 0x73
#define OV511_OMNICE_QUANTIZATION_HORIZ_Y 0x74
#define OV511_OMNICE_QUANTIZATION_HORIZ_UV 0x75
#define OV511_OMNICE_QUANTIZATION_VERT_Y 0x76
#define OV511_OMNICE_QUANTIZATION_VERT_UV 0x77
#define OV511_OMNICE_ENABLE 0x78
#define OV511_OMNICE_LUT_ENABLE 0x79
#define OV511_OMNICE_Y_LUT_BEGIN 0x80
#define OV511_OMNICE_Y_LUT_END 0x9F
#define OV511_OMNICE_UV_LUT_BEGIN 0xA0
#define OV511_OMNICE_UV_LUT_END 0xBF
/* Alternate numbers for various max packet sizes (OV511 only) */
#define OV511_ALT_SIZE_992 0
#define OV511_ALT_SIZE_993 1
#define OV511_ALT_SIZE_768 2
#define OV511_ALT_SIZE_769 3
#define OV511_ALT_SIZE_512 4
#define OV511_ALT_SIZE_513 5
#define OV511_ALT_SIZE_257 6
#define OV511_ALT_SIZE_0 7
/* Alternate numbers for various max packet sizes (OV511+ only) */
#define OV511PLUS_ALT_SIZE_0 0
#define OV511PLUS_ALT_SIZE_33 1
#define OV511PLUS_ALT_SIZE_129 2
#define OV511PLUS_ALT_SIZE_257 3
#define OV511PLUS_ALT_SIZE_385 4
#define OV511PLUS_ALT_SIZE_513 5
#define OV511PLUS_ALT_SIZE_769 6
#define OV511PLUS_ALT_SIZE_961 7
/* ov7610 registers */
#define OV7610_REG_GAIN 0x00
#define OV7610_REG_BLUE 0x01
#define OV7610_REG_RED 0x02
#define OV7610_REG_SAT 0x03
#define OV7610_REG_CNT 0x05
#define OV7610_REG_BRT 0x06
#define OV7610_REG_BLUE_BIAS 0x0C
#define OV7610_REG_RED_BIAS 0x0D
#define OV7610_REG_GAMMA_COEFF 0x0E
#define OV7610_REG_WB_RANGE 0x0F
#define OV7610_REG_EXP 0x10
#define OV7610_REG_CLOCK 0x11
#define OV7610_REG_COM_A 0x12
#define OV7610_REG_COM_B 0x13
#define OV7610_REG_COM_C 0x14
#define OV7610_REG_COM_D 0x15
#define OV7610_REG_FIELD_DIVIDE 0x16
#define OV7610_REG_HWIN_START 0x17
#define OV7610_REG_HWIN_END 0x18
#define OV7610_REG_VWIN_START 0x19
#define OV7610_REG_VWIN_END 0x1A
#define OV7610_REG_PIXEL_SHIFT 0x1B
#define OV7610_REG_ID_HIGH 0x1C
#define OV7610_REG_ID_LOW 0x1D
#define OV7610_REG_COM_E 0x20
#define OV7610_REG_YOFFSET 0x21
#define OV7610_REG_UOFFSET 0x22
#define OV7610_REG_ECW 0x24
#define OV7610_REG_ECB 0x25
#define OV7610_REG_COM_F 0x26
#define OV7610_REG_COM_G 0x27
#define OV7610_REG_COM_H 0x28
#define OV7610_REG_COM_I 0x29
#define OV7610_REG_FRAMERATE_H 0x2A
#define OV7610_REG_FRAMERATE_L 0x2B
#define OV7610_REG_ALC 0x2C
#define OV7610_REG_COM_J 0x2D
#define OV7610_REG_VOFFSET 0x2E
#define OV7610_REG_YGAMMA 0x33
#define OV7610_REG_BIAS_ADJUST 0x34
#define OV7610_REG_COM_L 0x35
#define OV7610_REG_COM_K 0x38
#define STREAM_BUF_SIZE (PAGE_SIZE * 4)
#define SCRATCH_BUF_SIZE 384
#define FRAMES_PER_DESC 10 /* FIXME - What should this be? */
#define FRAME_SIZE_PER_DESC 993 /* FIXME - Deprecated */
#define MAX_FRAME_SIZE_PER_DESC 993 /* For statically allocated stuff */
// FIXME - should this be 0x81 (endpoint address) or 0x01 (endpoint number)?
#define OV511_ENDPOINT_ADDRESS 0x81 /* Address of isoc endpoint */
// CAMERA SPECIFIC
// FIXME - these can vary between specific models
#define OV7610_I2C_WRITE_ID 0x42
#define OV7610_I2C_READ_ID 0x43
#define OV511_I2C_CLOCK_PRESCALER 0x03
/* Prototypes */
int usb_ov511_reg_read(struct usb_device *dev, unsigned char reg);
int usb_ov511_reg_write(struct usb_device *dev,
unsigned char reg,
unsigned char value);
/* Bridge types */
enum {
BRG_OV511,
BRG_OV511PLUS,
};
/* Sensor types */
enum {
SEN_UNKNOWN,
SEN_OV7610,
SEN_OV7620,
SEN_OV7620AE,
};
enum {
STATE_SCANNING, /* Scanning for start */
STATE_HEADER, /* Parsing header */
STATE_LINES, /* Parsing lines */
};
struct usb_device;
struct ov511_sbuf {
char *data;
urb_t *urb;
};
enum {
FRAME_UNUSED, /* Unused (no MCAPTURE) */
FRAME_READY, /* Ready to start grabbing */
FRAME_GRABBING, /* In the process of being grabbed into */
FRAME_DONE, /* Finished grabbing, but not been synced yet */
FRAME_ERROR, /* Something bad happened while processing */
};
struct ov511_regvals {
enum {
OV511_DONE_BUS,
OV511_REG_BUS,
OV511_I2C_BUS,
} bus;
unsigned char reg;
unsigned char val;
};
struct ov511_frame {
char *data; /* Frame buffer */
int depth; /* Bytes per pixel */
int width; /* Width application is expecting */
int height; /* Height */
int hdrwidth; /* Width the frame actually is */
int hdrheight; /* Height */
int sub_flag; /* Sub-capture mode for this frame? */
int format; /* Format for this frame */
int segsize; /* How big is each segment from the camera? */
volatile int grabstate; /* State of grabbing */
int scanstate; /* State of scanning */
int curline; /* Line of frame we're working on */
int curpix;
int segment; /* Segment from the incoming data */
long scanlength; /* uncompressed, raw data length of frame */
long bytes_read; /* amount of scanlength that has been read from *data */
wait_queue_head_t wq; /* Processes waiting */
int snapshot; /* True if frame was a snapshot */
};
#define OV511_NUMFRAMES 2
#define OV511_NUMSBUF 2
struct usb_ov511 {
struct video_device vdev;
/* Device structure */
struct usb_device *dev;
unsigned char customid; /* Type of camera */
unsigned char iface;
struct semaphore lock;
int user; /* user count for exclusive use */
int streaming; /* Are we streaming Isochronous? */
int grabbing; /* Are we grabbing? */
int compress; /* Should the next frame be compressed? */
char *fbuf; /* Videodev buffer area */
int sub_flag; /* Pix Array subcapture on flag */
int subx; /* Pix Array subcapture x offset */
int suby; /* Pix Array subcapture y offset */
int subw; /* Pix Array subcapture width */
int subh; /* Pix Array subcapture height */
int curframe; /* Current receiving sbuf */
struct ov511_frame frame[OV511_NUMFRAMES];
int cursbuf; /* Current receiving sbuf */
struct ov511_sbuf sbuf[OV511_NUMSBUF];
/* Scratch space from the Isochronous pipe */
unsigned char scratch[SCRATCH_BUF_SIZE];
int scratchlen;
wait_queue_head_t wq; /* Processes waiting */
int snap_enabled; /* Snapshot mode enabled */
int bridge; /* Type of bridge (OV511 or OV511+) */
int sensor; /* Type of image sensor chip */
int packet_size; /* Frame size per isoc desc */
};
#endif
|
