1/* 2 * zoran - Iomega Buz driver 3 * 4 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> 5 * 6 * based on 7 * 8 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net> 9 * 10 * and 11 * 12 * bttv - Bt848 frame grabber driver 13 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) 14 * & Marcus Metzler (mocm@thp.uni-koeln.de) 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or 19 * (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 29 */ 30 31#ifndef _BUZ_H_ 32#define _BUZ_H_ 33 34struct zoran_requestbuffers { 35 unsigned long count; /* Number of buffers for MJPEG grabbing */ 36 unsigned long size; /* Size PER BUFFER in bytes */ 37}; 38 39struct zoran_sync { 40 unsigned long frame; /* number of buffer that has been free'd */ 41 unsigned long length; /* number of code bytes in buffer (capture only) */ 42 unsigned long seq; /* frame sequence number */ 43 struct timeval timestamp; /* timestamp */ 44}; 45 46struct zoran_status { 47 int input; /* Input channel, has to be set prior to BUZIOC_G_STATUS */ 48 int signal; /* Returned: 1 if valid video signal detected */ 49 int norm; /* Returned: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ 50 int color; /* Returned: 1 if color signal detected */ 51}; 52 53struct zoran_params { 54 55 /* The following parameters can only be queried */ 56 57 int major_version; /* Major version number of driver */ 58 int minor_version; /* Minor version number of driver */ 59 60 /* Main control parameters */ 61 62 int input; /* Input channel: 0 = Composite, 1 = S-VHS */ 63 int norm; /* Norm: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ 64 int decimation; /* decimation of captured video, 65 * enlargement of video played back. 66 * Valid values are 1, 2, 4 or 0. 67 * 0 is a special value where the user 68 * has full control over video scaling */ 69 70 /* The following parameters only have to be set if decimation==0, 71 * for other values of decimation they provide the data how the image is captured */ 72 73 int HorDcm; /* Horizontal decimation: 1, 2 or 4 */ 74 int VerDcm; /* Vertical decimation: 1 or 2 */ 75 int TmpDcm; /* Temporal decimation: 1 or 2, 76 * if TmpDcm==2 in capture every second frame is dropped, 77 * in playback every frame is played twice */ 78 int field_per_buff; /* Number of fields per buffer: 1 or 2 */ 79 int img_x; /* start of image in x direction */ 80 int img_y; /* start of image in y direction */ 81 int img_width; /* image width BEFORE decimation, 82 * must be a multiple of HorDcm*16 */ 83 int img_height; /* image height BEFORE decimation, 84 * must be a multiple of VerDcm*8 */ 85 86 /* --- End of parameters for decimation==0 only --- */ 87 88 /* JPEG control parameters */ 89 90 int quality; /* Measure for quality of compressed images. 91 * Scales linearly with the size of the compressed images. 92 * Must be beetween 0 and 100, 100 is a compression 93 * ratio of 1:4 */ 94 95 int odd_even; /* Which field should come first ??? */ 96 97 int APPn; /* Number of APP segment to be written, must be 0..15 */ 98 int APP_len; /* Length of data in JPEG APPn segment */ 99 char APP_data[60]; /* Data in the JPEG APPn segment. */ 100 101 int COM_len; /* Length of data in JPEG COM segment */ 102 char COM_data[60]; /* Data in JPEG COM segment */ 103 104 unsigned long jpeg_markers; /* Which markers should go into the JPEG output. 105 * Unless you exactly know what you do, leave them untouched. 106 * Inluding less markers will make the resulting code 107 * smaller, but there will be fewer aplications 108 * which can read it. 109 * The presence of the APP and COM marker is 110 * influenced by APP0_len and COM_len ONLY! */ 111#define JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */ 112#define JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */ 113#define JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ 114#define JPEG_MARKER_COM (1<<6) /* Comment segment */ 115#define JPEG_MARKER_APP (1<<7) /* App segment, driver will allways use APP0 */ 116 117 int VFIFO_FB; /* Flag for enabling Video Fifo Feedback. 118 * If this flag is turned on and JPEG decompressing 119 * is going to the screen, the decompress process 120 * is stopped every time the Video Fifo is full. 121 * This enables a smooth decompress to the screen 122 * but the video output signal will get scrambled */ 123 124 /* Misc */ 125 126 char reserved[312]; /* Makes 512 bytes for this structure */ 127}; 128 129/* 130Private IOCTL to set up for displaying MJPEG 131*/ 132#define BUZIOC_G_PARAMS _IOR ('v', BASE_VIDIOCPRIVATE+0, struct zoran_params) 133#define BUZIOC_S_PARAMS _IOWR('v', BASE_VIDIOCPRIVATE+1, struct zoran_params) 134#define BUZIOC_REQBUFS _IOWR('v', BASE_VIDIOCPRIVATE+2, struct zoran_requestbuffers) 135#define BUZIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOCPRIVATE+3, int) 136#define BUZIOC_QBUF_PLAY _IOW ('v', BASE_VIDIOCPRIVATE+4, int) 137#define BUZIOC_SYNC _IOR ('v', BASE_VIDIOCPRIVATE+5, struct zoran_sync) 138#define BUZIOC_G_STATUS _IOWR('v', BASE_VIDIOCPRIVATE+6, struct zoran_status) 139 140 141#ifdef __KERNEL__ 142 143#define MAJOR_VERSION 0 /* driver major version */ 144#define MINOR_VERSION 9 /* driver minor version */ 145#define RELEASE_VERSION 5 /* release version */ 146 147#define ZORAN_NAME "ZORAN" /* name of the device */ 148 149#define ZR_DEVNAME(zr) ((zr)->name) 150 151#define BUZ_MAX_WIDTH (zr->timing->Wa) 152#define BUZ_MAX_HEIGHT (zr->timing->Ha) 153#define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */ 154#define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */ 155 156#define BUZ_NUM_STAT_COM 4 157#define BUZ_MASK_STAT_COM 3 158 159#define BUZ_MAX_FRAME 256 /* Must be a power of 2 */ 160#define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */ 161 162#define BUZ_MAX_INPUT 16 163 164#if VIDEO_MAX_FRAME <= 32 165# define V4L_MAX_FRAME 32 166#elif VIDEO_MAX_FRAME <= 64 167# define V4L_MAX_FRAME 64 168#else 169# error "Too many video frame buffers to handle" 170#endif 171#define V4L_MASK_FRAME (V4L_MAX_FRAME - 1) 172 173#define MAX_KMALLOC_MEM (128*1024) 174 175#include "zr36057.h" 176 177enum card_type { 178 UNKNOWN = -1, 179 180 /* Pinnacle/Miro */ 181 DC10_old, /* DC30 like */ 182 DC10_new, /* DC10plus like */ 183 DC10plus, 184 DC30, 185 DC30plus, 186 187 /* Linux Media Labs */ 188 LML33, 189 LML33R10, 190 191 /* Iomega */ 192 BUZ, 193 194 /* AverMedia */ 195 AVS6EYES, 196 197 /* total number of cards */ 198 NUM_CARDS 199}; 200 201enum zoran_codec_mode { 202 BUZ_MODE_IDLE, /* nothing going on */ 203 BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */ 204 BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */ 205 BUZ_MODE_STILL_COMPRESS, /* still frame conversion */ 206 BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */ 207}; 208 209enum zoran_buffer_state { 210 BUZ_STATE_USER, /* buffer is owned by application */ 211 BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */ 212 BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */ 213 BUZ_STATE_DONE /* buffer is ready to return to application */ 214}; 215 216enum zoran_map_mode { 217 ZORAN_MAP_MODE_RAW, 218 ZORAN_MAP_MODE_JPG_REC, 219#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC 220 ZORAN_MAP_MODE_JPG_PLAY, 221}; 222 223enum gpio_type { 224 GPIO_JPEG_SLEEP = 0, 225 GPIO_JPEG_RESET, 226 GPIO_JPEG_FRAME, 227 GPIO_VID_DIR, 228 GPIO_VID_EN, 229 GPIO_VID_RESET, 230 GPIO_CLK_SEL1, 231 GPIO_CLK_SEL2, 232 GPIO_MAX, 233}; 234 235enum gpcs_type { 236 GPCS_JPEG_RESET = 0, 237 GPCS_JPEG_START, 238 GPCS_MAX, 239}; 240 241struct zoran_format { 242 char *name; 243 int palette; 244 __u32 fourcc; 245 int colorspace; 246 int depth; 247 __u32 flags; 248}; 249/* flags */ 250#define ZORAN_FORMAT_COMPRESSED 1<<0 251#define ZORAN_FORMAT_OVERLAY 1<<1 252#define ZORAN_FORMAT_CAPTURE 1<<2 253#define ZORAN_FORMAT_PLAYBACK 1<<3 254 255/* overlay-settings */ 256struct zoran_overlay_settings { 257 int is_set; 258 int x, y, width, height; /* position */ 259 int clipcount; /* position and number of clips */ 260 const struct zoran_format *format; /* overlay format */ 261}; 262 263/* v4l-capture settings */ 264struct zoran_v4l_settings { 265 int width, height, bytesperline; /* capture size */ 266 const struct zoran_format *format; /* capture format */ 267}; 268 269/* whoops, this one is undeclared if !v4l2 */ 270#ifndef CONFIG_VIDEO_V4L2 271struct v4l2_jpegcompression { 272 int quality; 273 int APPn; 274 int APP_len; 275 char APP_data[60]; 276 int COM_len; 277 char COM_data[60]; 278 __u32 jpeg_markers; 279 __u8 reserved[116]; 280}; 281#endif 282 283/* jpg-capture/-playback settings */ 284struct zoran_jpg_settings { 285 int decimation; /* this bit is used to set everything to default */ 286 int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */ 287 int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */ 288 int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */ 289 struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */ 290}; 291 292struct zoran_mapping { 293 struct file *file; 294 int count; 295}; 296 297struct zoran_jpg_buffer { 298 struct zoran_mapping *map; 299 u32 *frag_tab; /* addresses of frag table */ 300 u32 frag_tab_bus; /* same value cached to save time in ISR */ 301 enum zoran_buffer_state state; /* non-zero if corresponding buffer is in use in grab queue */ 302 struct zoran_sync bs; /* DONE: info to return to application */ 303}; 304 305struct zoran_v4l_buffer { 306 struct zoran_mapping *map; 307 char *fbuffer; /* virtual address of frame buffer */ 308 unsigned long fbuffer_phys; /* physical address of frame buffer */ 309 unsigned long fbuffer_bus; /* bus address of frame buffer */ 310 enum zoran_buffer_state state; /* state: unused/pending/done */ 311 struct zoran_sync bs; /* DONE: info to return to application */ 312}; 313 314enum zoran_lock_activity { 315 ZORAN_FREE, /* free for use */ 316 ZORAN_ACTIVE, /* active but unlocked */ 317 ZORAN_LOCKED, /* locked */ 318}; 319 320/* buffer collections */ 321struct zoran_jpg_struct { 322 enum zoran_lock_activity active; /* feature currently in use? */ 323 struct zoran_jpg_buffer buffer[BUZ_MAX_FRAME]; /* buffers */ 324 int num_buffers, buffer_size; 325 u8 allocated; /* Flag if buffers are allocated */ 326 u8 ready_to_be_freed; /* hack - see zoran_driver.c */ 327 u8 need_contiguous; /* Flag if contiguous buffers are needed */ 328}; 329 330struct zoran_v4l_struct { 331 enum zoran_lock_activity active; /* feature currently in use? */ 332 struct zoran_v4l_buffer buffer[VIDEO_MAX_FRAME]; /* buffers */ 333 int num_buffers, buffer_size; 334 u8 allocated; /* Flag if buffers are allocated */ 335 u8 ready_to_be_freed; /* hack - see zoran_driver.c */ 336}; 337 338struct zoran; 339 340/* zoran_fh contains per-open() settings */ 341struct zoran_fh { 342 struct zoran *zr; 343 344 enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */ 345 346 struct zoran_overlay_settings overlay_settings; 347 u32 *overlay_mask; /* overlay mask */ 348 enum zoran_lock_activity overlay_active; /* feature currently in use? */ 349 350 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */ 351 struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */ 352 353 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */ 354 struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */ 355}; 356 357struct card_info { 358 enum card_type type; 359 char name[32]; 360 u16 i2c_decoder, i2c_encoder; /* I2C types */ 361 u16 video_vfe, video_codec; /* videocodec types */ 362 u16 audio_chip; /* audio type */ 363 u16 vendor_id, device_id; /* subsystem vendor/device ID */ 364 365 int inputs; /* number of video inputs */ 366 struct input { 367 int muxsel; 368 char name[32]; 369 } input[BUZ_MAX_INPUT]; 370 371 int norms; 372 struct tvnorm *tvn[3]; /* supported TV norms */ 373 374 u32 jpeg_int; /* JPEG interrupt */ 375 u32 vsync_int; /* VSYNC interrupt */ 376 s8 gpio[GPIO_MAX]; 377 u8 gpcs[GPCS_MAX]; 378 379 struct vfe_polarity vfe_pol; 380 u8 gpio_pol[GPIO_MAX]; 381 382 /* is the /GWS line conected? */ 383 u8 gws_not_connected; 384 385 /* avs6eyes mux setting */ 386 u8 input_mux; 387 388 void (*init) (struct zoran * zr); 389}; 390 391struct zoran { 392 struct video_device *video_dev; 393 394 struct i2c_adapter i2c_adapter; /* */ 395 struct i2c_algo_bit_data i2c_algo; /* */ 396 u32 i2cbr; 397 398 struct i2c_client *decoder; /* video decoder i2c client */ 399 struct i2c_client *encoder; /* video encoder i2c client */ 400 401 struct videocodec *codec; /* video codec */ 402 struct videocodec *vfe; /* video front end */ 403 404 struct mutex resource_lock; /* prevent evil stuff */ 405 406 u8 initialized; /* flag if zoran has been correctly initalized */ 407 int user; /* number of current users */ 408 struct card_info card; 409 struct tvnorm *timing; 410 411 unsigned short id; /* number of this device */ 412 char name[32]; /* name of this device */ 413 struct pci_dev *pci_dev; /* PCI device */ 414 unsigned char revision; /* revision of zr36057 */ 415 unsigned int zr36057_adr; /* bus address of IO mem returned by PCI BIOS */ 416 unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */ 417 418 spinlock_t spinlock; /* Spinlock */ 419 420 /* Video for Linux parameters */ 421 int input, norm; /* card's norm and input - norm=VIDEO_MODE_* */ 422 int hue, saturation, contrast, brightness; /* Current picture params */ 423 struct video_buffer buffer; /* Current buffer params */ 424 struct zoran_overlay_settings overlay_settings; 425 u32 *overlay_mask; /* overlay mask */ 426 enum zoran_lock_activity overlay_active; /* feature currently in use? */ 427 428 wait_queue_head_t v4l_capq; 429 430 int v4l_overlay_active; /* Overlay grab is activated */ 431 int v4l_memgrab_active; /* Memory grab is activated */ 432 433 int v4l_grab_frame; /* Frame number being currently grabbed */ 434#define NO_GRAB_ACTIVE (-1) 435 unsigned long v4l_grab_seq; /* Number of frames grabbed */ 436 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */ 437 438 /* V4L grab queue of frames pending */ 439 unsigned long v4l_pend_head; 440 unsigned long v4l_pend_tail; 441 unsigned long v4l_sync_tail; 442 int v4l_pend[V4L_MAX_FRAME]; 443 struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */ 444 445 /* Buz MJPEG parameters */ 446 enum zoran_codec_mode codec_mode; /* status of codec */ 447 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */ 448 449 wait_queue_head_t jpg_capq; /* wait here for grab to finish */ 450 451 /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */ 452 /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */ 453 /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */ 454 unsigned long jpg_que_head; /* Index where to put next buffer which is queued */ 455 unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */ 456 unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */ 457 unsigned long jpg_que_tail; /* Index of last buffer in queue */ 458 unsigned long jpg_seq_num; /* count of frames since grab/play started */ 459 unsigned long jpg_err_seq; /* last seq_num before error */ 460 unsigned long jpg_err_shift; 461 unsigned long jpg_queued_num; /* count of frames queued since grab/play started */ 462 463 /* zr36057's code buffer table */ 464 u32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */ 465 466 /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */ 467 int jpg_pend[BUZ_MAX_FRAME]; 468 469 /* array indexed by frame number */ 470 struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */ 471 472 /* Additional stuff for testing */ 473#ifdef CONFIG_PROC_FS 474 struct proc_dir_entry *zoran_proc; 475#else 476 void *zoran_proc; 477#endif 478 int testing; 479 int jpeg_error; 480 int intr_counter_GIRQ1; 481 int intr_counter_GIRQ0; 482 int intr_counter_CodRepIRQ; 483 int intr_counter_JPEGRepIRQ; 484 int field_counter; 485 int IRQ1_in; 486 int IRQ1_out; 487 int JPEG_in; 488 int JPEG_out; 489 int JPEG_0; 490 int JPEG_1; 491 int END_event_missed; 492 int JPEG_missed; 493 int JPEG_error; 494 int num_errors; 495 int JPEG_max_missed; 496 int JPEG_min_missed; 497 498 u32 last_isr; 499 unsigned long frame_num; 500 501 wait_queue_head_t test_q; 502}; 503 504/*The following should be done in more portable way. It depends on define 505 of _ALPHA_BUZ in the Makefile.*/ 506 507#ifdef _ALPHA_BUZ 508#define btwrite(dat,adr) writel((dat), zr->zr36057_adr+(adr)) 509#define btread(adr) readl(zr->zr36057_adr+(adr)) 510#else 511#define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr)) 512#define btread(adr) readl(zr->zr36057_mem+(adr)) 513#endif 514 515#define btand(dat,adr) btwrite((dat) & btread(adr), adr) 516#define btor(dat,adr) btwrite((dat) | btread(adr), adr) 517#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) 518 519#endif /* __kernel__ */ 520 521#endif 522