[PATCH] I2C: i2c-algo-pca -- gracefully handle a busy bus
[linux-2.6/next.git] / drivers / usb / media / ov511.h
blob086509a137c6c52099f7b1b9d5f6ae7d2f35169f
1 #ifndef __LINUX_OV511_H
2 #define __LINUX_OV511_H
4 #include <asm/uaccess.h>
5 #include <linux/videodev.h>
6 #include <linux/smp_lock.h>
7 #include <linux/usb.h>
9 #define OV511_DEBUG /* Turn on debug messages */
11 #ifdef OV511_DEBUG
12 #define PDEBUG(level, fmt, args...) \
13 if (debug >= (level)) info("[%s:%d] " fmt, \
14 __FUNCTION__, __LINE__ , ## args)
15 #else
16 #define PDEBUG(level, fmt, args...) do {} while(0)
17 #endif
19 /* This macro restricts an int variable to an inclusive range */
20 #define RESTRICT_TO_RANGE(v,mi,ma) { \
21 if ((v) < (mi)) (v) = (mi); \
22 else if ((v) > (ma)) (v) = (ma); \
25 /* --------------------------------- */
26 /* DEFINES FOR OV511 AND OTHER CHIPS */
27 /* --------------------------------- */
29 /* USB IDs */
30 #define VEND_OMNIVISION 0x05A9
31 #define PROD_OV511 0x0511
32 #define PROD_OV511PLUS 0xA511
33 #define PROD_OV518 0x0518
34 #define PROD_OV518PLUS 0xA518
36 #define VEND_MATTEL 0x0813
37 #define PROD_ME2CAM 0x0002
39 /* --------------------------------- */
40 /* OV51x REGISTER MNEMONICS */
41 /* --------------------------------- */
43 /* Camera interface register numbers */
44 #define R511_CAM_DELAY 0x10
45 #define R511_CAM_EDGE 0x11
46 #define R511_CAM_PXCNT 0x12
47 #define R511_CAM_LNCNT 0x13
48 #define R511_CAM_PXDIV 0x14
49 #define R511_CAM_LNDIV 0x15
50 #define R511_CAM_UV_EN 0x16
51 #define R511_CAM_LINE_MODE 0x17
52 #define R511_CAM_OPTS 0x18
54 /* Snapshot mode camera interface register numbers */
55 #define R511_SNAP_FRAME 0x19
56 #define R511_SNAP_PXCNT 0x1A
57 #define R511_SNAP_LNCNT 0x1B
58 #define R511_SNAP_PXDIV 0x1C
59 #define R511_SNAP_LNDIV 0x1D
60 #define R511_SNAP_UV_EN 0x1E
61 #define R511_SNAP_OPTS 0x1F
63 /* DRAM register numbers */
64 #define R511_DRAM_FLOW_CTL 0x20
65 #define R511_DRAM_ARCP 0x21
66 #define R511_DRAM_MRC 0x22
67 #define R511_DRAM_RFC 0x23
69 /* ISO FIFO register numbers */
70 #define R51x_FIFO_PSIZE 0x30 /* 2 bytes wide w/ OV518(+) */
71 #define R511_FIFO_OPTS 0x31
73 /* Parallel IO register numbers */
74 #define R511_PIO_OPTS 0x38
75 #define R511_PIO_DATA 0x39
76 #define R511_PIO_BIST 0x3E
77 #define R518_GPIO_IN 0x55 /* OV518(+) only */
78 #define R518_GPIO_OUT 0x56 /* OV518(+) only */
79 #define R518_GPIO_CTL 0x57 /* OV518(+) only */
80 #define R518_GPIO_PULSE_IN 0x58 /* OV518(+) only */
81 #define R518_GPIO_PULSE_CLEAR 0x59 /* OV518(+) only */
82 #define R518_GPIO_PULSE_POL 0x5a /* OV518(+) only */
83 #define R518_GPIO_PULSE_EN 0x5b /* OV518(+) only */
84 #define R518_GPIO_RESET 0x5c /* OV518(+) only */
86 /* I2C registers */
87 #define R511_I2C_CTL 0x40
88 #define R518_I2C_CTL 0x47 /* OV518(+) only */
89 #define R51x_I2C_W_SID 0x41
90 #define R51x_I2C_SADDR_3 0x42
91 #define R51x_I2C_SADDR_2 0x43
92 #define R51x_I2C_R_SID 0x44
93 #define R51x_I2C_DATA 0x45
94 #define R51x_I2C_CLOCK 0x46
95 #define R51x_I2C_TIMEOUT 0x47
97 /* I2C snapshot registers */
98 #define R511_SI2C_SADDR_3 0x48
99 #define R511_SI2C_DATA 0x49
101 /* System control registers */
102 #define R51x_SYS_RESET 0x50
103 /* Reset type definitions */
104 #define OV511_RESET_UDC 0x01
105 #define OV511_RESET_I2C 0x02
106 #define OV511_RESET_FIFO 0x04
107 #define OV511_RESET_OMNICE 0x08
108 #define OV511_RESET_DRAM 0x10
109 #define OV511_RESET_CAM_INT 0x20
110 #define OV511_RESET_OV511 0x40
111 #define OV511_RESET_NOREGS 0x3F /* All but OV511 & regs */
112 #define OV511_RESET_ALL 0x7F
114 #define R511_SYS_CLOCK_DIV 0x51
115 #define R51x_SYS_SNAP 0x52
116 #define R51x_SYS_INIT 0x53
117 #define R511_SYS_PWR_CLK 0x54 /* OV511+/OV518(+) only */
118 #define R511_SYS_LED_CTL 0x55 /* OV511+ only */
119 #define R511_SYS_USER 0x5E
120 #define R511_SYS_CUST_ID 0x5F
122 /* OmniCE (compression) registers */
123 #define R511_COMP_PHY 0x70
124 #define R511_COMP_PHUV 0x71
125 #define R511_COMP_PVY 0x72
126 #define R511_COMP_PVUV 0x73
127 #define R511_COMP_QHY 0x74
128 #define R511_COMP_QHUV 0x75
129 #define R511_COMP_QVY 0x76
130 #define R511_COMP_QVUV 0x77
131 #define R511_COMP_EN 0x78
132 #define R511_COMP_LUT_EN 0x79
133 #define R511_COMP_LUT_BEGIN 0x80
135 /* --------------------------------- */
136 /* ALTERNATE NUMBERS */
137 /* --------------------------------- */
139 /* Alternate numbers for various max packet sizes (OV511 only) */
140 #define OV511_ALT_SIZE_992 0
141 #define OV511_ALT_SIZE_993 1
142 #define OV511_ALT_SIZE_768 2
143 #define OV511_ALT_SIZE_769 3
144 #define OV511_ALT_SIZE_512 4
145 #define OV511_ALT_SIZE_513 5
146 #define OV511_ALT_SIZE_257 6
147 #define OV511_ALT_SIZE_0 7
149 /* Alternate numbers for various max packet sizes (OV511+ only) */
150 #define OV511PLUS_ALT_SIZE_0 0
151 #define OV511PLUS_ALT_SIZE_33 1
152 #define OV511PLUS_ALT_SIZE_129 2
153 #define OV511PLUS_ALT_SIZE_257 3
154 #define OV511PLUS_ALT_SIZE_385 4
155 #define OV511PLUS_ALT_SIZE_513 5
156 #define OV511PLUS_ALT_SIZE_769 6
157 #define OV511PLUS_ALT_SIZE_961 7
159 /* Alternate numbers for various max packet sizes (OV518(+) only) */
160 #define OV518_ALT_SIZE_0 0
161 #define OV518_ALT_SIZE_128 1
162 #define OV518_ALT_SIZE_256 2
163 #define OV518_ALT_SIZE_384 3
164 #define OV518_ALT_SIZE_512 4
165 #define OV518_ALT_SIZE_640 5
166 #define OV518_ALT_SIZE_768 6
167 #define OV518_ALT_SIZE_896 7
169 /* --------------------------------- */
170 /* OV7610 REGISTER MNEMONICS */
171 /* --------------------------------- */
173 /* OV7610 registers */
174 #define OV7610_REG_GAIN 0x00 /* gain setting (5:0) */
175 #define OV7610_REG_BLUE 0x01 /* blue channel balance */
176 #define OV7610_REG_RED 0x02 /* red channel balance */
177 #define OV7610_REG_SAT 0x03 /* saturation */
178 /* 04 reserved */
179 #define OV7610_REG_CNT 0x05 /* Y contrast */
180 #define OV7610_REG_BRT 0x06 /* Y brightness */
181 /* 08-0b reserved */
182 #define OV7610_REG_BLUE_BIAS 0x0C /* blue channel bias (5:0) */
183 #define OV7610_REG_RED_BIAS 0x0D /* read channel bias (5:0) */
184 #define OV7610_REG_GAMMA_COEFF 0x0E /* gamma settings */
185 #define OV7610_REG_WB_RANGE 0x0F /* AEC/ALC/S-AWB settings */
186 #define OV7610_REG_EXP 0x10 /* manual exposure setting */
187 #define OV7610_REG_CLOCK 0x11 /* polarity/clock prescaler */
188 #define OV7610_REG_COM_A 0x12 /* misc common regs */
189 #define OV7610_REG_COM_B 0x13 /* misc common regs */
190 #define OV7610_REG_COM_C 0x14 /* misc common regs */
191 #define OV7610_REG_COM_D 0x15 /* misc common regs */
192 #define OV7610_REG_FIELD_DIVIDE 0x16 /* field interval/mode settings */
193 #define OV7610_REG_HWIN_START 0x17 /* horizontal window start */
194 #define OV7610_REG_HWIN_END 0x18 /* horizontal window end */
195 #define OV7610_REG_VWIN_START 0x19 /* vertical window start */
196 #define OV7610_REG_VWIN_END 0x1A /* vertical window end */
197 #define OV7610_REG_PIXEL_SHIFT 0x1B /* pixel shift */
198 #define OV7610_REG_ID_HIGH 0x1C /* manufacturer ID MSB */
199 #define OV7610_REG_ID_LOW 0x1D /* manufacturer ID LSB */
200 /* 0e-0f reserved */
201 #define OV7610_REG_COM_E 0x20 /* misc common regs */
202 #define OV7610_REG_YOFFSET 0x21 /* Y channel offset */
203 #define OV7610_REG_UOFFSET 0x22 /* U channel offset */
204 /* 23 reserved */
205 #define OV7610_REG_ECW 0x24 /* Exposure white level for AEC */
206 #define OV7610_REG_ECB 0x25 /* Exposure black level for AEC */
207 #define OV7610_REG_COM_F 0x26 /* misc settings */
208 #define OV7610_REG_COM_G 0x27 /* misc settings */
209 #define OV7610_REG_COM_H 0x28 /* misc settings */
210 #define OV7610_REG_COM_I 0x29 /* misc settings */
211 #define OV7610_REG_FRAMERATE_H 0x2A /* frame rate MSB + misc */
212 #define OV7610_REG_FRAMERATE_L 0x2B /* frame rate LSB */
213 #define OV7610_REG_ALC 0x2C /* Auto Level Control settings */
214 #define OV7610_REG_COM_J 0x2D /* misc settings */
215 #define OV7610_REG_VOFFSET 0x2E /* V channel offset adjustment */
216 #define OV7610_REG_ARRAY_BIAS 0x2F /* Array bias -- don't change */
217 /* 30-32 reserved */
218 #define OV7610_REG_YGAMMA 0x33 /* misc gamma settings (7:6) */
219 #define OV7610_REG_BIAS_ADJUST 0x34 /* misc bias settings */
220 #define OV7610_REG_COM_L 0x35 /* misc settings */
221 /* 36-37 reserved */
222 #define OV7610_REG_COM_K 0x38 /* misc registers */
224 /* --------------------------------- */
225 /* I2C ADDRESSES */
226 /* --------------------------------- */
228 #define OV7xx0_SID 0x42
229 #define OV6xx0_SID 0xC0
230 #define OV8xx0_SID 0xA0
231 #define KS0127_SID 0xD8
232 #define SAA7111A_SID 0x48
234 /* --------------------------------- */
235 /* MISCELLANEOUS DEFINES */
236 /* --------------------------------- */
238 #define I2C_CLOCK_PRESCALER 0x03
240 #define FRAMES_PER_DESC 10 /* FIXME - What should this be? */
241 #define MAX_FRAME_SIZE_PER_DESC 993 /* For statically allocated stuff */
242 #define PIXELS_PER_SEG 256 /* Pixels per segment */
244 #define OV511_ENDPOINT_ADDRESS 1 /* Isoc endpoint number */
246 #define OV511_NUMFRAMES 2
247 #if OV511_NUMFRAMES > VIDEO_MAX_FRAME
248 #error "OV511_NUMFRAMES is too high"
249 #endif
251 #define OV511_NUMSBUF 2
253 /* Control transfers use up to 4 bytes */
254 #define OV511_CBUF_SIZE 4
256 /* Size of usb_make_path() buffer */
257 #define OV511_USB_PATH_LEN 64
259 /* Bridge types */
260 enum {
261 BRG_UNKNOWN,
262 BRG_OV511,
263 BRG_OV511PLUS,
264 BRG_OV518,
265 BRG_OV518PLUS,
268 /* Bridge classes */
269 enum {
270 BCL_UNKNOWN,
271 BCL_OV511,
272 BCL_OV518,
275 /* Sensor types */
276 enum {
277 SEN_UNKNOWN,
278 SEN_OV76BE,
279 SEN_OV7610,
280 SEN_OV7620,
281 SEN_OV7620AE,
282 SEN_OV6620,
283 SEN_OV6630,
284 SEN_OV6630AE,
285 SEN_OV6630AF,
286 SEN_OV8600,
287 SEN_KS0127,
288 SEN_KS0127B,
289 SEN_SAA7111A,
292 enum {
293 STATE_SCANNING, /* Scanning for start */
294 STATE_HEADER, /* Parsing header */
295 STATE_LINES, /* Parsing lines */
298 /* Buffer states */
299 enum {
300 BUF_NOT_ALLOCATED,
301 BUF_ALLOCATED,
304 /* --------- Definition of ioctl interface --------- */
306 #define OV511_INTERFACE_VER 101
308 /* LED options */
309 enum {
310 LED_OFF,
311 LED_ON,
312 LED_AUTO,
315 /* Raw frame formats */
316 enum {
317 RAWFMT_INVALID,
318 RAWFMT_YUV400,
319 RAWFMT_YUV420,
320 RAWFMT_YUV422,
321 RAWFMT_GBR422,
324 struct ov511_i2c_struct {
325 unsigned char slave; /* Write slave ID (read ID - 1) */
326 unsigned char reg; /* Index of register */
327 unsigned char value; /* User sets this w/ write, driver does w/ read */
328 unsigned char mask; /* Bits to be changed. Not used with read ops */
331 /* ioctls */
332 #define OV511IOC_WI2C _IOW('v', BASE_VIDIOCPRIVATE + 5, \
333 struct ov511_i2c_struct)
334 #define OV511IOC_RI2C _IOWR('v', BASE_VIDIOCPRIVATE + 6, \
335 struct ov511_i2c_struct)
336 /* ------------- End IOCTL interface -------------- */
338 struct usb_ov511; /* Forward declaration */
340 struct ov511_sbuf {
341 struct usb_ov511 *ov;
342 unsigned char *data;
343 struct urb *urb;
344 spinlock_t lock;
345 int n;
348 enum {
349 FRAME_UNUSED, /* Unused (no MCAPTURE) */
350 FRAME_READY, /* Ready to start grabbing */
351 FRAME_GRABBING, /* In the process of being grabbed into */
352 FRAME_DONE, /* Finished grabbing, but not been synced yet */
353 FRAME_ERROR, /* Something bad happened while processing */
356 struct ov511_regvals {
357 enum {
358 OV511_DONE_BUS,
359 OV511_REG_BUS,
360 OV511_I2C_BUS,
361 } bus;
362 unsigned char reg;
363 unsigned char val;
366 struct ov511_frame {
367 int framenum; /* Index of this frame */
368 unsigned char *data; /* Frame buffer */
369 unsigned char *tempdata; /* Temp buffer for multi-stage conversions */
370 unsigned char *rawdata; /* Raw camera data buffer */
371 unsigned char *compbuf; /* Temp buffer for decompressor */
373 int depth; /* Bytes per pixel */
374 int width; /* Width application is expecting */
375 int height; /* Height application is expecting */
377 int rawwidth; /* Actual width of frame sent from camera */
378 int rawheight; /* Actual height of frame sent from camera */
380 int sub_flag; /* Sub-capture mode for this frame? */
381 unsigned int format; /* Format for this frame */
382 int compressed; /* Is frame compressed? */
384 volatile int grabstate; /* State of grabbing */
385 int scanstate; /* State of scanning */
387 int bytes_recvd; /* Number of image bytes received from camera */
389 long bytes_read; /* Amount that has been read() */
391 wait_queue_head_t wq; /* Processes waiting */
393 int snapshot; /* True if frame was a snapshot */
396 #define DECOMP_INTERFACE_VER 4
398 /* Compression module operations */
399 struct ov51x_decomp_ops {
400 int (*decomp_400)(unsigned char *, unsigned char *, unsigned char *,
401 int, int, int);
402 int (*decomp_420)(unsigned char *, unsigned char *, unsigned char *,
403 int, int, int);
404 int (*decomp_422)(unsigned char *, unsigned char *, unsigned char *,
405 int, int, int);
406 struct module *owner;
409 struct usb_ov511 {
410 struct video_device *vdev;
411 struct usb_device *dev;
413 int customid;
414 char *desc;
415 unsigned char iface;
416 char usb_path[OV511_USB_PATH_LEN];
418 /* Determined by sensor type */
419 int maxwidth;
420 int maxheight;
421 int minwidth;
422 int minheight;
424 int brightness;
425 int colour;
426 int contrast;
427 int hue;
428 int whiteness;
429 int exposure;
430 int auto_brt; /* Auto brightness enabled flag */
431 int auto_gain; /* Auto gain control enabled flag */
432 int auto_exp; /* Auto exposure enabled flag */
433 int backlight; /* Backlight exposure algorithm flag */
434 int mirror; /* Image is reversed horizontally */
436 int led_policy; /* LED: off|on|auto; OV511+ only */
438 struct semaphore lock; /* Serializes user-accessible operations */
439 int user; /* user count for exclusive use */
441 int streaming; /* Are we streaming Isochronous? */
442 int grabbing; /* Are we grabbing? */
444 int compress; /* Should the next frame be compressed? */
445 int compress_inited; /* Are compression params uploaded? */
447 int lightfreq; /* Power (lighting) frequency */
448 int bandfilt; /* Banding filter enabled flag */
450 unsigned char *fbuf; /* Videodev buffer area */
451 unsigned char *tempfbuf; /* Temporary (intermediate) buffer area */
452 unsigned char *rawfbuf; /* Raw camera data buffer area */
454 int sub_flag; /* Pix Array subcapture on flag */
455 int subx; /* Pix Array subcapture x offset */
456 int suby; /* Pix Array subcapture y offset */
457 int subw; /* Pix Array subcapture width */
458 int subh; /* Pix Array subcapture height */
460 int curframe; /* Current receiving sbuf */
461 struct ov511_frame frame[OV511_NUMFRAMES];
463 struct ov511_sbuf sbuf[OV511_NUMSBUF];
465 wait_queue_head_t wq; /* Processes waiting */
467 int snap_enabled; /* Snapshot mode enabled */
469 int bridge; /* Type of bridge (BRG_*) */
470 int bclass; /* Class of bridge (BCL_*) */
471 int sensor; /* Type of image sensor chip (SEN_*) */
473 int packet_size; /* Frame size per isoc desc */
474 int packet_numbering; /* Is ISO frame numbering enabled? */
476 struct semaphore param_lock; /* params lock for this camera */
478 /* Framebuffer/sbuf management */
479 int buf_state;
480 struct semaphore buf_lock;
482 struct ov51x_decomp_ops *decomp_ops;
484 /* Stop streaming while changing picture settings */
485 int stop_during_set;
487 int stopped; /* Streaming is temporarily paused */
489 /* Video decoder stuff */
490 int input; /* Composite, S-VIDEO, etc... */
491 int num_inputs; /* Number of inputs */
492 int norm; /* NTSC / PAL / SECAM */
493 int has_decoder; /* Device has a video decoder */
494 int pal; /* Device is designed for PAL resolution */
496 /* I2C interface */
497 struct semaphore i2c_lock; /* Protect I2C controller regs */
498 unsigned char primary_i2c_slave; /* I2C write id of sensor */
500 /* Control transaction stuff */
501 unsigned char *cbuf; /* Buffer for payload */
502 struct semaphore cbuf_lock;
505 /* Used to represent a list of values and their respective symbolic names */
506 struct symbolic_list {
507 int num;
508 char *name;
511 #define NOT_DEFINED_STR "Unknown"
513 /* Returns the name of the matching element in the symbolic_list array. The
514 * end of the list must be marked with an element that has a NULL name.
516 static inline char *
517 symbolic(struct symbolic_list list[], int num)
519 int i;
521 for (i = 0; list[i].name != NULL; i++)
522 if (list[i].num == num)
523 return (list[i].name);
525 return (NOT_DEFINED_STR);
528 /* Compression stuff */
530 #define OV511_QUANTABLESIZE 64
531 #define OV518_QUANTABLESIZE 32
533 #define OV511_YQUANTABLE { \
534 0, 1, 1, 2, 2, 3, 3, 4, \
535 1, 1, 1, 2, 2, 3, 4, 4, \
536 1, 1, 2, 2, 3, 4, 4, 4, \
537 2, 2, 2, 3, 4, 4, 4, 4, \
538 2, 2, 3, 4, 4, 5, 5, 5, \
539 3, 3, 4, 4, 5, 5, 5, 5, \
540 3, 4, 4, 4, 5, 5, 5, 5, \
541 4, 4, 4, 4, 5, 5, 5, 5 \
544 #define OV511_UVQUANTABLE { \
545 0, 2, 2, 3, 4, 4, 4, 4, \
546 2, 2, 2, 4, 4, 4, 4, 4, \
547 2, 2, 3, 4, 4, 4, 4, 4, \
548 3, 4, 4, 4, 4, 4, 4, 4, \
549 4, 4, 4, 4, 4, 4, 4, 4, \
550 4, 4, 4, 4, 4, 4, 4, 4, \
551 4, 4, 4, 4, 4, 4, 4, 4, \
552 4, 4, 4, 4, 4, 4, 4, 4 \
555 #define OV518_YQUANTABLE { \
556 5, 4, 5, 6, 6, 7, 7, 7, \
557 5, 5, 5, 5, 6, 7, 7, 7, \
558 6, 6, 6, 6, 7, 7, 7, 8, \
559 7, 7, 6, 7, 7, 7, 8, 8 \
562 #define OV518_UVQUANTABLE { \
563 6, 6, 6, 7, 7, 7, 7, 7, \
564 6, 6, 6, 7, 7, 7, 7, 7, \
565 6, 6, 6, 7, 7, 7, 7, 8, \
566 7, 7, 7, 7, 7, 7, 8, 8 \
569 #endif