usbvision.h revision 52cb0bf275debe4ec8950157f11b9d9f14447a88
1/* 2 * USBVISION.H 3 * usbvision header file 4 * 5 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> 6 * Dwaine Garden <dwainegarden@rogers.com> 7 * 8 * 9 * Report problems to v4l MailingList: linux-media@vger.kernel.org 10 * 11 * This module is part of usbvision driver project. 12 * Updates to driver completed by Dwaine P. Garden 13 * v4l2 conversion by Thierry Merle <thierry.merle@free.fr> 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 28 */ 29 30 31#ifndef __LINUX_USBVISION_H 32#define __LINUX_USBVISION_H 33 34#include <linux/list.h> 35#include <linux/usb.h> 36#include <linux/i2c.h> 37#include <linux/mutex.h> 38#include <media/v4l2-device.h> 39#include <media/tuner.h> 40#include <linux/videodev2.h> 41 42#define USBVISION_DEBUG /* Turn on debug messages */ 43 44#define USBVISION_PWR_REG 0x00 45 #define USBVISION_SSPND_EN (1 << 1) 46 #define USBVISION_RES2 (1 << 2) 47 #define USBVISION_PWR_VID (1 << 5) 48 #define USBVISION_E2_EN (1 << 7) 49#define USBVISION_CONFIG_REG 0x01 50#define USBVISION_ADRS_REG 0x02 51#define USBVISION_ALTER_REG 0x03 52#define USBVISION_FORCE_ALTER_REG 0x04 53#define USBVISION_STATUS_REG 0x05 54#define USBVISION_IOPIN_REG 0x06 55 #define USBVISION_IO_1 (1 << 0) 56 #define USBVISION_IO_2 (1 << 1) 57 #define USBVISION_AUDIO_IN 0 58 #define USBVISION_AUDIO_TV 1 59 #define USBVISION_AUDIO_RADIO 2 60 #define USBVISION_AUDIO_MUTE 3 61#define USBVISION_SER_MODE 0x07 62#define USBVISION_SER_ADRS 0x08 63#define USBVISION_SER_CONT 0x09 64#define USBVISION_SER_DAT1 0x0A 65#define USBVISION_SER_DAT2 0x0B 66#define USBVISION_SER_DAT3 0x0C 67#define USBVISION_SER_DAT4 0x0D 68#define USBVISION_EE_DATA 0x0E 69#define USBVISION_EE_LSBAD 0x0F 70#define USBVISION_EE_CONT 0x10 71#define USBVISION_DRM_CONT 0x12 72 #define USBVISION_REF (1 << 0) 73 #define USBVISION_RES_UR (1 << 2) 74 #define USBVISION_RES_FDL (1 << 3) 75 #define USBVISION_RES_VDW (1 << 4) 76#define USBVISION_DRM_PRM1 0x13 77#define USBVISION_DRM_PRM2 0x14 78#define USBVISION_DRM_PRM3 0x15 79#define USBVISION_DRM_PRM4 0x16 80#define USBVISION_DRM_PRM5 0x17 81#define USBVISION_DRM_PRM6 0x18 82#define USBVISION_DRM_PRM7 0x19 83#define USBVISION_DRM_PRM8 0x1A 84#define USBVISION_VIN_REG1 0x1B 85 #define USBVISION_8_422_SYNC 0x01 86 #define USBVISION_16_422_SYNC 0x02 87 #define USBVISION_VSNC_POL (1 << 3) 88 #define USBVISION_HSNC_POL (1 << 4) 89 #define USBVISION_FID_POL (1 << 5) 90 #define USBVISION_HVALID_PO (1 << 6) 91 #define USBVISION_VCLK_POL (1 << 7) 92#define USBVISION_VIN_REG2 0x1C 93 #define USBVISION_AUTO_FID (1 << 0) 94 #define USBVISION_NONE_INTER (1 << 1) 95 #define USBVISION_NOHVALID (1 << 2) 96 #define USBVISION_UV_ID (1 << 3) 97 #define USBVISION_FIX_2C (1 << 4) 98 #define USBVISION_SEND_FID (1 << 5) 99 #define USBVISION_KEEP_BLANK (1 << 7) 100#define USBVISION_LXSIZE_I 0x1D 101#define USBVISION_MXSIZE_I 0x1E 102#define USBVISION_LYSIZE_I 0x1F 103#define USBVISION_MYSIZE_I 0x20 104#define USBVISION_LX_OFFST 0x21 105#define USBVISION_MX_OFFST 0x22 106#define USBVISION_LY_OFFST 0x23 107#define USBVISION_MY_OFFST 0x24 108#define USBVISION_FRM_RATE 0x25 109#define USBVISION_LXSIZE_O 0x26 110#define USBVISION_MXSIZE_O 0x27 111#define USBVISION_LYSIZE_O 0x28 112#define USBVISION_MYSIZE_O 0x29 113#define USBVISION_FILT_CONT 0x2A 114#define USBVISION_VO_MODE 0x2B 115#define USBVISION_INTRA_CYC 0x2C 116#define USBVISION_STRIP_SZ 0x2D 117#define USBVISION_FORCE_INTRA 0x2E 118#define USBVISION_FORCE_UP 0x2F 119#define USBVISION_BUF_THR 0x30 120#define USBVISION_DVI_YUV 0x31 121#define USBVISION_AUDIO_CONT 0x32 122#define USBVISION_AUD_PK_LEN 0x33 123#define USBVISION_BLK_PK_LEN 0x34 124#define USBVISION_PCM_THR1 0x38 125#define USBVISION_PCM_THR2 0x39 126#define USBVISION_DIST_THR_L 0x3A 127#define USBVISION_DIST_THR_H 0x3B 128#define USBVISION_MAX_DIST_L 0x3C 129#define USBVISION_MAX_DIST_H 0x3D 130#define USBVISION_OP_CODE 0x33 131 132#define MAX_BYTES_PER_PIXEL 4 133 134#define MIN_FRAME_WIDTH 64 135#define MAX_USB_WIDTH 320 /* 384 */ 136#define MAX_FRAME_WIDTH 320 /* 384 */ /* streching sometimes causes crashes*/ 137 138#define MIN_FRAME_HEIGHT 48 139#define MAX_USB_HEIGHT 240 /* 288 */ 140#define MAX_FRAME_HEIGHT 240 /* 288 */ /* Streching sometimes causes crashes*/ 141 142#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL) 143#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) /* bytesize of clipmask */ 144 145#define USBVISION_URB_FRAMES 32 146 147#define USBVISION_NUM_HEADERMARKER 20 148#define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */ 149#define USBVISION_NUMSBUF 2 /* Dimensioning the USB S buffering */ 150 151#define USBVISION_POWEROFF_TIME 3 * (HZ) /* 3 seconds */ 152 153 154#define FRAMERATE_MIN 0 155#define FRAMERATE_MAX 31 156 157enum { 158 ISOC_MODE_YUV422 = 0x03, 159 ISOC_MODE_YUV420 = 0x14, 160 ISOC_MODE_COMPRESS = 0x60, 161}; 162 163/* This macro restricts an int variable to an inclusive range */ 164#define RESTRICT_TO_RANGE(v,mi,ma) { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); } 165 166/* 167 * We use macros to do YUV -> RGB conversion because this is 168 * very important for speed and totally unimportant for size. 169 * 170 * YUV -> RGB Conversion 171 * --------------------- 172 * 173 * B = 1.164*(Y-16) + 2.018*(V-128) 174 * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128) 175 * R = 1.164*(Y-16) + 1.596*(U-128) 176 * 177 * If you fancy integer arithmetics (as you should), hear this: 178 * 179 * 65536*B = 76284*(Y-16) + 132252*(V-128) 180 * 65536*G = 76284*(Y-16) - 53281*(U-128) - 25625*(V-128) 181 * 65536*R = 76284*(Y-16) + 104595*(U-128) 182 * 183 * Make sure the output values are within [0..255] range. 184 */ 185#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x))) 186#define YUV_TO_RGB_BY_THE_BOOK(my,mu,mv,mr,mg,mb) { \ 187 int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \ 188 mm_y = (my) - 16; \ 189 mm_u = (mu) - 128; \ 190 mm_v = (mv) - 128; \ 191 mm_yc= mm_y * 76284; \ 192 mm_b = (mm_yc + 132252*mm_v ) >> 16; \ 193 mm_g = (mm_yc - 53281*mm_u - 25625*mm_v ) >> 16; \ 194 mm_r = (mm_yc + 104595*mm_u ) >> 16; \ 195 mb = LIMIT_RGB(mm_b); \ 196 mg = LIMIT_RGB(mm_g); \ 197 mr = LIMIT_RGB(mm_r); \ 198} 199 200/* Debugging aid */ 201#define USBVISION_SAY_AND_WAIT(what) { \ 202 wait_queue_head_t wq; \ 203 init_waitqueue_head(&wq); \ 204 printk(KERN_INFO "Say: %s\n", what); \ 205 interruptible_sleep_on_timeout (&wq, HZ*3); \ 206} 207 208/* 209 * This macro checks if usbvision is still operational. The 'usbvision' 210 * pointer must be valid, usbvision->dev must be valid, we are not 211 * removing the device and the device has not erred on us. 212 */ 213#define USBVISION_IS_OPERATIONAL(udevice) (\ 214 (udevice != NULL) && \ 215 ((udevice)->dev != NULL) && \ 216 ((udevice)->last_error == 0) && \ 217 (!(udevice)->remove_pending)) 218 219#define I2C_USB_ADAP_MAX 16 220 221#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M) 222 223/* ----------------------------------------------------------------- */ 224/* usbvision video structures */ 225/* ----------------------------------------------------------------- */ 226enum scan_state { 227 scan_state_scanning, /* Scanning for header */ 228 scan_state_lines /* Parsing lines */ 229}; 230 231/* Completion states of the data parser */ 232enum parse_state { 233 parse_state_continue, /* Just parse next item */ 234 parse_state_next_frame, /* Frame done, send it to V4L */ 235 parse_state_out, /* Not enough data for frame */ 236 parse_state_end_parse /* End parsing */ 237}; 238 239enum frame_state { 240 frame_state_unused, /* Unused (no MCAPTURE) */ 241 frame_state_ready, /* Ready to start grabbing */ 242 frame_state_grabbing, /* In the process of being grabbed into */ 243 frame_state_done, /* Finished grabbing, but not been synced yet */ 244 frame_state_done_hold, /* Are syncing or reading */ 245 frame_state_error, /* Something bad happened while processing */ 246}; 247 248/* stream states */ 249enum stream_state { 250 stream_off, /* Driver streaming is completely OFF */ 251 stream_idle, /* Driver streaming is ready to be put ON by the application */ 252 stream_interrupt, /* Driver streaming must be interrupted */ 253 stream_on, /* Driver streaming is put ON by the application */ 254}; 255 256enum isoc_state { 257 isoc_state_in_frame, /* Isoc packet is member of frame */ 258 isoc_state_no_frame, /* Isoc packet is not member of any frame */ 259}; 260 261struct usb_device; 262 263struct usbvision_sbuf { 264 char *data; 265 struct urb *urb; 266}; 267 268#define USBVISION_MAGIC_1 0x55 269#define USBVISION_MAGIC_2 0xAA 270#define USBVISION_HEADER_LENGTH 0x0c 271#define USBVISION_SAA7111_ADDR 0x48 272#define USBVISION_SAA7113_ADDR 0x4a 273#define USBVISION_IIC_LRACK 0x20 274#define USBVISION_IIC_LRNACK 0x30 275#define USBVISION_FRAME_FORMAT_PARAM_INTRA (1<<7) 276 277struct usbvision_v4l2_format_st { 278 int supported; 279 int bytes_per_pixel; 280 int depth; 281 int format; 282 char *desc; 283}; 284#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format) 285 286struct usbvision_frame_header { 287 unsigned char magic_1; /* 0 magic */ 288 unsigned char magic_2; /* 1 magic */ 289 unsigned char header_length; /* 2 */ 290 unsigned char frame_num; /* 3 */ 291 unsigned char frame_phase; /* 4 */ 292 unsigned char frame_latency; /* 5 */ 293 unsigned char data_format; /* 6 */ 294 unsigned char format_param; /* 7 */ 295 unsigned char frame_width_lo; /* 8 */ 296 unsigned char frame_width_hi; /* 9 */ 297 unsigned char frame_height_lo; /* 10 */ 298 unsigned char frame_height_hi; /* 11 */ 299 __u16 frame_width; /* 8 - 9 after endian correction*/ 300 __u16 frame_height; /* 10 - 11 after endian correction*/ 301}; 302 303struct usbvision_frame { 304 char *data; /* Frame buffer */ 305 struct usbvision_frame_header isoc_header; /* Header from stream */ 306 307 int width; /* Width application is expecting */ 308 int height; /* Height */ 309 int index; /* Frame index */ 310 int frmwidth; /* Width the frame actually is */ 311 int frmheight; /* Height */ 312 313 volatile int grabstate; /* State of grabbing */ 314 int scanstate; /* State of scanning */ 315 316 struct list_head frame; 317 318 int curline; /* Line of frame we're working on */ 319 320 long scanlength; /* uncompressed, raw data length of frame */ 321 long bytes_read; /* amount of scanlength that has been read from data */ 322 struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/ 323 int v4l2_linesize; /* bytes for one videoline*/ 324 struct timeval timestamp; 325 int sequence; /* How many video frames we send to user */ 326}; 327 328#define CODEC_SAA7113 7113 329#define CODEC_SAA7111 7111 330#define BRIDGE_NT1003 1003 331#define BRIDGE_NT1004 1004 332#define BRIDGE_NT1005 1005 333 334struct usbvision_device_data_st { 335 __u64 video_norm; 336 const char *model_string; 337 int interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */ 338 __u16 codec; 339 unsigned video_channels:3; 340 unsigned audio_channels:2; 341 unsigned radio:1; 342 unsigned vbi:1; 343 unsigned tuner:1; 344 unsigned vin_reg1_override:1; /* Override default value with */ 345 unsigned vin_reg2_override:1; /* vin_reg1, vin_reg2, etc. */ 346 unsigned dvi_yuv_override:1; 347 __u8 vin_reg1; 348 __u8 vin_reg2; 349 __u8 dvi_yuv; 350 __u8 tuner_type; 351 __s16 x_offset; 352 __s16 y_offset; 353}; 354 355/* Declared on usbvision-cards.c */ 356extern struct usbvision_device_data_st usbvision_device_data[]; 357extern struct usb_device_id usbvision_table[]; 358 359struct usb_usbvision { 360 struct v4l2_device v4l2_dev; 361 struct video_device *vdev; /* Video Device */ 362 struct video_device *rdev; /* Radio Device */ 363 364 /* i2c Declaration Section*/ 365 struct i2c_adapter i2c_adap; 366 int registered_i2c; 367 368 struct urb *ctrl_urb; 369 unsigned char ctrl_urb_buffer[8]; 370 int ctrl_urb_busy; 371 struct usb_ctrlrequest ctrl_urb_setup; 372 wait_queue_head_t ctrl_urb_wq; /* Processes waiting */ 373 374 /* configuration part */ 375 int have_tuner; 376 int tuner_type; 377 int bridge_type; /* NT1003, NT1004, NT1005 */ 378 int radio; 379 int video_inputs; /* # of inputs */ 380 unsigned long freq; 381 int audio_mute; 382 int audio_channel; 383 int isoc_mode; /* format of video data for the usb isoc-transfer */ 384 unsigned int nr; /* Number of the device */ 385 386 /* Device structure */ 387 struct usb_device *dev; 388 /* usb transfer */ 389 int num_alt; /* Number of alternative settings */ 390 unsigned int *alt_max_pkt_size; /* array of max_packet_size */ 391 unsigned char iface; /* Video interface number */ 392 unsigned char iface_alt; /* Alt settings */ 393 unsigned char vin_reg2_preset; 394 struct mutex v4l2_lock; 395 struct timer_list power_off_timer; 396 struct work_struct power_off_work; 397 int power; /* is the device powered on? */ 398 int user; /* user count for exclusive use */ 399 int initialized; /* Had we already sent init sequence? */ 400 int dev_model; /* What type of USBVISION device we got? */ 401 enum stream_state streaming; /* Are we streaming Isochronous? */ 402 int last_error; /* What calamity struck us? */ 403 int curwidth; /* width of the frame the device is currently set to*/ 404 int curheight; /* height of the frame the device is currently set to*/ 405 int stretch_width; /* stretch-factor for frame width (from usb to screen)*/ 406 int stretch_height; /* stretch-factor for frame height (from usb to screen)*/ 407 char *fbuf; /* Videodev buffer area for mmap*/ 408 int max_frame_size; /* Bytes in one video frame */ 409 int fbuf_size; /* Videodev buffer size */ 410 spinlock_t queue_lock; /* spinlock for protecting mods on inqueue and outqueue */ 411 struct list_head inqueue, outqueue; /* queued frame list and ready to dequeue frame list */ 412 wait_queue_head_t wait_frame; /* Processes waiting */ 413 wait_queue_head_t wait_stream; /* Processes waiting */ 414 struct usbvision_frame *cur_frame; /* pointer to current frame, set by usbvision_find_header */ 415 struct usbvision_frame frame[USBVISION_NUMFRAMES]; /* frame buffer */ 416 int num_frames; /* number of frames allocated */ 417 struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; /* S buffering */ 418 volatile int remove_pending; /* If set then about to exit */ 419 420 /* Scratch space from the Isochronous Pipe.*/ 421 unsigned char *scratch; 422 int scratch_read_ptr; 423 int scratch_write_ptr; 424 int scratch_headermarker[USBVISION_NUM_HEADERMARKER]; 425 int scratch_headermarker_read_ptr; 426 int scratch_headermarker_write_ptr; 427 enum isoc_state isocstate; 428 struct usbvision_v4l2_format_st palette; 429 430 struct v4l2_capability vcap; /* Video capabilities */ 431 unsigned int ctl_input; /* selected input */ 432 v4l2_std_id tvnorm_id; /* selected tv norm */ 433 unsigned char video_endp; /* 0x82 for USBVISION devices based */ 434 435 /* Decompression stuff: */ 436 unsigned char *intra_frame_buffer; /* Buffer for reference frame */ 437 int block_pos; /* for test only */ 438 int request_intra; /* 0 = normal; 1 = intra frame is requested; */ 439 int last_isoc_frame_num; /* check for lost isoc frames */ 440 int isoc_packet_size; /* need to calculate used_bandwidth */ 441 int used_bandwidth; /* used bandwidth 0-100%, need to set compr_level */ 442 int compr_level; /* How strong (100) or weak (0) is compression */ 443 int last_compr_level; /* How strong (100) or weak (0) was compression */ 444 int usb_bandwidth; /* Mbit/s */ 445 446 /* Statistics that can be overlayed on the screen */ 447 unsigned long isoc_urb_count; /* How many URBs we received so far */ 448 unsigned long urb_length; /* Length of last URB */ 449 unsigned long isoc_data_count; /* How many bytes we received */ 450 unsigned long header_count; /* How many frame headers we found */ 451 unsigned long scratch_ovf_count; /* How many times we overflowed scratch */ 452 unsigned long isoc_skip_count; /* How many empty ISO packets received */ 453 unsigned long isoc_err_count; /* How many bad ISO packets received */ 454 unsigned long isoc_packet_count; /* How many packets we totally got */ 455 unsigned long time_in_irq; /* How long do we need for interrupt */ 456 int isoc_measure_bandwidth_count; 457 int frame_num; /* How many video frames we send to user */ 458 int max_strip_len; /* How big is the biggest strip */ 459 int comprblock_pos; 460 int strip_len_errors; /* How many times was block_pos greater than strip_len */ 461 int strip_magic_errors; 462 int strip_line_number_errors; 463 int compr_block_types[4]; 464}; 465 466static inline struct usb_usbvision *to_usbvision(struct v4l2_device *v4l2_dev) 467{ 468 return container_of(v4l2_dev, struct usb_usbvision, v4l2_dev); 469} 470 471#define call_all(usbvision, o, f, args...) \ 472 v4l2_device_call_all(&usbvision->v4l2_dev, 0, o, f, ##args) 473 474/* --------------------------------------------------------------- */ 475/* defined in usbvision-i2c.c */ 476/* i2c-algo-usb declaration */ 477/* --------------------------------------------------------------- */ 478 479/* ----------------------------------------------------------------------- */ 480/* usbvision specific I2C functions */ 481/* ----------------------------------------------------------------------- */ 482int usbvision_i2c_register(struct usb_usbvision *usbvision); 483int usbvision_i2c_unregister(struct usb_usbvision *usbvision); 484 485/* defined in usbvision-core.c */ 486int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg); 487int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, 488 unsigned char value); 489 490int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames); 491void usbvision_frames_free(struct usb_usbvision *usbvision); 492int usbvision_scratch_alloc(struct usb_usbvision *usbvision); 493void usbvision_scratch_free(struct usb_usbvision *usbvision); 494int usbvision_decompress_alloc(struct usb_usbvision *usbvision); 495void usbvision_decompress_free(struct usb_usbvision *usbvision); 496 497int usbvision_setup(struct usb_usbvision *usbvision,int format); 498int usbvision_init_isoc(struct usb_usbvision *usbvision); 499int usbvision_restart_isoc(struct usb_usbvision *usbvision); 500void usbvision_stop_isoc(struct usb_usbvision *usbvision); 501int usbvision_set_alternate(struct usb_usbvision *dev); 502 503int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel); 504int usbvision_audio_off(struct usb_usbvision *usbvision); 505 506int usbvision_begin_streaming(struct usb_usbvision *usbvision); 507void usbvision_empty_framequeues(struct usb_usbvision *dev); 508int usbvision_stream_interrupt(struct usb_usbvision *dev); 509 510int usbvision_muxsel(struct usb_usbvision *usbvision, int channel); 511int usbvision_set_input(struct usb_usbvision *usbvision); 512int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height); 513 514void usbvision_init_power_off_timer(struct usb_usbvision *usbvision); 515void usbvision_set_power_off_timer(struct usb_usbvision *usbvision); 516void usbvision_reset_power_off_timer(struct usb_usbvision *usbvision); 517int usbvision_power_off(struct usb_usbvision *usbvision); 518int usbvision_power_on(struct usb_usbvision *usbvision); 519 520#endif /* __LINUX_USBVISION_H */ 521 522/* 523 * Overrides for Emacs so that we follow Linus's tabbing style. 524 * --------------------------------------------------------------------------- 525 * Local variables: 526 * c-basic-offset: 8 527 * End: 528 */ 529