1/* 2 * Zoran zr36057/zr36067 PCI controller driver, for the 3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux 4 * Media Labs LML33/LML33R10. 5 * 6 * This part handles device access (PCI/I2C/codec/...) 7 * 8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> 9 * 10 * Currently maintained by: 11 * Ronald Bultje <rbultje@ronald.bitfreak.net> 12 * Laurent Pinchart <laurent.pinchart@skynet.be> 13 * Mailinglist <mjpeg-users@lists.sf.net> 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#include <linux/types.h> 31#include <linux/kernel.h> 32#include <linux/module.h> 33#include <linux/vmalloc.h> 34#include <linux/byteorder/generic.h> 35 36#include <linux/interrupt.h> 37#include <linux/proc_fs.h> 38#include <linux/i2c.h> 39#include <linux/i2c-algo-bit.h> 40#include <linux/videodev.h> 41#include <linux/spinlock.h> 42#include <linux/sem.h> 43 44#include <linux/pci.h> 45#include <linux/video_decoder.h> 46#include <linux/video_encoder.h> 47#include <linux/delay.h> 48#include <linux/wait.h> 49 50#include <asm/io.h> 51 52#include "videocodec.h" 53#include "zoran.h" 54#include "zoran_device.h" 55 56#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \ 57 ZR36057_ISR_GIRQ1 | \ 58 ZR36057_ISR_JPEGRepIRQ ) 59 60extern const struct zoran_format zoran_formats[]; 61 62extern int *zr_debug; 63 64#define dprintk(num, format, args...) \ 65 do { \ 66 if (*zr_debug >= num) \ 67 printk(format, ##args); \ 68 } while (0) 69 70static int lml33dpath = 0; /* 1 will use digital path in capture 71 * mode instead of analog. It can be 72 * used for picture adjustments using 73 * tool like xawtv while watching image 74 * on TV monitor connected to the output. 75 * However, due to absence of 75 Ohm 76 * load on Bt819 input, there will be 77 * some image imperfections */ 78 79module_param(lml33dpath, bool, 0); 80MODULE_PARM_DESC(lml33dpath, 81 "Use digital path capture mode (on LML33 cards)"); 82 83static void 84zr36057_init_vfe (struct zoran *zr); 85 86/* 87 * General Purpose I/O and Guest bus access 88 */ 89 90/* 91 * This is a bit tricky. When a board lacks a GPIO function, the corresponding 92 * GPIO bit number in the card_info structure is set to 0. 93 */ 94 95void 96GPIO (struct zoran *zr, 97 int bit, 98 unsigned int value) 99{ 100 u32 reg; 101 u32 mask; 102 103 /* Make sure the bit number is legal 104 * A bit number of -1 (lacking) gives a mask of 0, 105 * making it harmless */ 106 mask = (1 << (24 + bit)) & 0xff000000; 107 reg = btread(ZR36057_GPPGCR1) & ~mask; 108 if (value) { 109 reg |= mask; 110 } 111 btwrite(reg, ZR36057_GPPGCR1); 112 udelay(1); 113} 114 115/* 116 * Wait til post office is no longer busy 117 */ 118 119int 120post_office_wait (struct zoran *zr) 121{ 122 u32 por; 123 124// while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) { 125 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) { 126 /* wait for something to happen */ 127 } 128 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) { 129 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */ 130 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr), 131 por); 132 return -1; 133 } 134 135 return 0; 136} 137 138int 139post_office_write (struct zoran *zr, 140 unsigned int guest, 141 unsigned int reg, 142 unsigned int value) 143{ 144 u32 por; 145 146 por = 147 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | 148 ((reg & 7) << 16) | (value & 0xFF); 149 btwrite(por, ZR36057_POR); 150 151 return post_office_wait(zr); 152} 153 154int 155post_office_read (struct zoran *zr, 156 unsigned int guest, 157 unsigned int reg) 158{ 159 u32 por; 160 161 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16); 162 btwrite(por, ZR36057_POR); 163 if (post_office_wait(zr) < 0) { 164 return -1; 165 } 166 167 return btread(ZR36057_POR) & 0xFF; 168} 169 170/* 171 * detect guests 172 */ 173 174static void 175dump_guests (struct zoran *zr) 176{ 177 if (*zr_debug > 2) { 178 int i, guest[8]; 179 180 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 181 guest[i] = post_office_read(zr, i, 0); 182 } 183 184 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 185 186 for (i = 1; i < 8; i++) { 187 printk(" 0x%02x", guest[i]); 188 } 189 printk("\n"); 190 } 191} 192 193static inline unsigned long 194get_time (void) 195{ 196 struct timeval tv; 197 198 do_gettimeofday(&tv); 199 return (1000000 * tv.tv_sec + tv.tv_usec); 200} 201 202void 203detect_guest_activity (struct zoran *zr) 204{ 205 int timeout, i, j, res, guest[8], guest0[8], change[8][3]; 206 unsigned long t0, t1; 207 208 dump_guests(zr); 209 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n", 210 ZR_DEVNAME(zr)); 211 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 212 guest0[i] = guest[i] = post_office_read(zr, i, 0); 213 } 214 215 timeout = 0; 216 j = 0; 217 t0 = get_time(); 218 while (timeout < 10000) { 219 udelay(10); 220 timeout++; 221 for (i = 1; (i < 8) && (j < 8); i++) { 222 res = post_office_read(zr, i, 0); 223 if (res != guest[i]) { 224 t1 = get_time(); 225 change[j][0] = (t1 - t0); 226 t0 = t1; 227 change[j][1] = i; 228 change[j][2] = res; 229 j++; 230 guest[i] = res; 231 } 232 } 233 if (j >= 8) 234 break; 235 } 236 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 237 238 for (i = 1; i < 8; i++) { 239 printk(" 0x%02x", guest0[i]); 240 } 241 printk("\n"); 242 if (j == 0) { 243 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr)); 244 return; 245 } 246 for (i = 0; i < j; i++) { 247 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr), 248 change[i][0], change[i][1], change[i][2]); 249 } 250} 251 252/* 253 * JPEG Codec access 254 */ 255 256void 257jpeg_codec_sleep (struct zoran *zr, 258 int sleep) 259{ 260 GPIO(zr, zr->card.gpio[GPIO_JPEG_SLEEP], !sleep); 261 if (!sleep) { 262 dprintk(3, 263 KERN_DEBUG 264 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n", 265 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 266 udelay(500); 267 } else { 268 dprintk(3, 269 KERN_DEBUG 270 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n", 271 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 272 udelay(2); 273 } 274} 275 276int 277jpeg_codec_reset (struct zoran *zr) 278{ 279 /* Take the codec out of sleep */ 280 jpeg_codec_sleep(zr, 0); 281 282 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) { 283 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0, 284 0); 285 udelay(2); 286 } else { 287 GPIO(zr, zr->card.gpio[GPIO_JPEG_RESET], 0); 288 udelay(2); 289 GPIO(zr, zr->card.gpio[GPIO_JPEG_RESET], 1); 290 udelay(2); 291 } 292 293 return 0; 294} 295 296/* 297 * Set the registers for the size we have specified. Don't bother 298 * trying to understand this without the ZR36057 manual in front of 299 * you [AC]. 300 * 301 * PS: The manual is free for download in .pdf format from 302 * www.zoran.com - nicely done those folks. 303 */ 304 305static void 306zr36057_adjust_vfe (struct zoran *zr, 307 enum zoran_codec_mode mode) 308{ 309 u32 reg; 310 311 switch (mode) { 312 case BUZ_MODE_MOTION_DECOMPRESS: 313 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 314 reg = btread(ZR36057_VFEHCR); 315 if ((reg & (1 << 10)) && zr->card.type != LML33R10) { 316 reg += ((1 << 10) | 1); 317 } 318 btwrite(reg, ZR36057_VFEHCR); 319 break; 320 case BUZ_MODE_MOTION_COMPRESS: 321 case BUZ_MODE_IDLE: 322 default: 323 if (zr->norm == VIDEO_MODE_NTSC || 324 (zr->card.type == LML33R10 && 325 zr->norm == VIDEO_MODE_PAL)) 326 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 327 else 328 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 329 reg = btread(ZR36057_VFEHCR); 330 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) { 331 reg -= ((1 << 10) | 1); 332 } 333 btwrite(reg, ZR36057_VFEHCR); 334 break; 335 } 336} 337 338/* 339 * set geometry 340 */ 341 342static void 343zr36057_set_vfe (struct zoran *zr, 344 int video_width, 345 int video_height, 346 const struct zoran_format *format) 347{ 348 struct tvnorm *tvn; 349 unsigned HStart, HEnd, VStart, VEnd; 350 unsigned DispMode; 351 unsigned VidWinWid, VidWinHt; 352 unsigned hcrop1, hcrop2, vcrop1, vcrop2; 353 unsigned Wa, We, Ha, He; 354 unsigned X, Y, HorDcm, VerDcm; 355 u32 reg; 356 unsigned mask_line_size; 357 358 tvn = zr->timing; 359 360 Wa = tvn->Wa; 361 Ha = tvn->Ha; 362 363 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n", 364 ZR_DEVNAME(zr), video_width, video_height); 365 366 if (zr->norm != VIDEO_MODE_PAL && 367 zr->norm != VIDEO_MODE_NTSC && 368 zr->norm != VIDEO_MODE_SECAM) { 369 dprintk(1, 370 KERN_ERR "%s: set_vfe() - norm = %d not valid\n", 371 ZR_DEVNAME(zr), zr->norm); 372 return; 373 } 374 if (video_width < BUZ_MIN_WIDTH || 375 video_height < BUZ_MIN_HEIGHT || 376 video_width > Wa || video_height > Ha) { 377 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", 378 ZR_DEVNAME(zr), video_width, video_height); 379 return; 380 } 381 382 /**** zr36057 ****/ 383 384 /* horizontal */ 385 VidWinWid = video_width; 386 X = (VidWinWid * 64 + tvn->Wa - 1) / tvn->Wa; 387 We = (VidWinWid * 64) / X; 388 HorDcm = 64 - X; 389 hcrop1 = 2 * ((tvn->Wa - We) / 4); 390 hcrop2 = tvn->Wa - We - hcrop1; 391 HStart = tvn->HStart ? tvn->HStart : 1; 392 /* (Ronald) Original comment: 393 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+" 394 * this is false. It inverses chroma values on the LML33R10 (so Cr 395 * suddenly is shown as Cb and reverse, really cool effect if you 396 * want to see blue faces, not useful otherwise). So don't use |1. 397 * However, the DC10 has '0' as HStart, but does need |1, so we 398 * use a dirty check... 399 */ 400 HEnd = HStart + tvn->Wa - 1; 401 HStart += hcrop1; 402 HEnd -= hcrop2; 403 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart) 404 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd); 405 if (zr->card.vfe_pol.hsync_pol) 406 reg |= ZR36057_VFEHCR_HSPol; 407 btwrite(reg, ZR36057_VFEHCR); 408 409 /* Vertical */ 410 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2); 411 VidWinHt = DispMode ? video_height : video_height / 2; 412 Y = (VidWinHt * 64 * 2 + tvn->Ha - 1) / tvn->Ha; 413 He = (VidWinHt * 64) / Y; 414 VerDcm = 64 - Y; 415 vcrop1 = (tvn->Ha / 2 - He) / 2; 416 vcrop2 = tvn->Ha / 2 - He - vcrop1; 417 VStart = tvn->VStart; 418 VEnd = VStart + tvn->Ha / 2; 419 VStart += vcrop1; 420 VEnd -= vcrop2; 421 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart) 422 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd); 423 if (zr->card.vfe_pol.vsync_pol) 424 reg |= ZR36057_VFEVCR_VSPol; 425 btwrite(reg, ZR36057_VFEVCR); 426 427 /* scaler and pixel format */ 428 reg = 0; 429 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); 430 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); 431 reg |= (DispMode << ZR36057_VFESPFR_DispMode); 432 if (format->palette != VIDEO_PALETTE_YUV422 && format->palette != VIDEO_PALETTE_YUYV) 433 reg |= ZR36057_VFESPFR_LittleEndian; 434 /* RJ: I don't know, why the following has to be the opposite 435 * of the corresponding ZR36060 setting, but only this way 436 * we get the correct colors when uncompressing to the screen */ 437 //reg |= ZR36057_VFESPFR_VCLKPol; /**/ 438 /* RJ: Don't know if that is needed for NTSC also */ 439 if (zr->norm != VIDEO_MODE_NTSC) 440 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang 441 reg |= ZR36057_VFESPFR_TopField; 442 switch (format->palette) { 443 444 case VIDEO_PALETTE_YUYV: 445 case VIDEO_PALETTE_YUV422: 446 reg |= ZR36057_VFESPFR_YUV422; 447 break; 448 449 case VIDEO_PALETTE_RGB555: 450 reg |= ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ErrDif; 451 break; 452 453 case VIDEO_PALETTE_RGB565: 454 reg |= ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ErrDif; 455 break; 456 457 case VIDEO_PALETTE_RGB24: 458 reg |= ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_Pack24; 459 break; 460 461 case VIDEO_PALETTE_RGB32: 462 reg |= ZR36057_VFESPFR_RGB888; 463 break; 464 465 default: 466 dprintk(1, 467 KERN_INFO "%s: set_vfe() - unknown color_fmt=%x\n", 468 ZR_DEVNAME(zr), format->palette); 469 return; 470 471 } 472 if (HorDcm >= 48) { 473 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ 474 } else if (HorDcm >= 32) { 475 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */ 476 } else if (HorDcm >= 16) { 477 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ 478 } 479 btwrite(reg, ZR36057_VFESPFR); 480 481 /* display configuration */ 482 reg = (16 << ZR36057_VDCR_MinPix) 483 | (VidWinHt << ZR36057_VDCR_VidWinHt) 484 | (VidWinWid << ZR36057_VDCR_VidWinWid); 485 if (pci_pci_problems & PCIPCI_TRITON) 486 // || zr->revision < 1) // Revision 1 has also Triton support 487 reg &= ~ZR36057_VDCR_Triton; 488 else 489 reg |= ZR36057_VDCR_Triton; 490 btwrite(reg, ZR36057_VDCR); 491 492 /* (Ronald) don't write this if overlay_mask = NULL */ 493 if (zr->overlay_mask) { 494 /* Write overlay clipping mask data, but don't enable overlay clipping */ 495 /* RJ: since this makes only sense on the screen, we use 496 * zr->overlay_settings.width instead of video_width */ 497 498 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 499 reg = virt_to_bus(zr->overlay_mask); 500 btwrite(reg, ZR36057_MMTR); 501 reg = virt_to_bus(zr->overlay_mask + mask_line_size); 502 btwrite(reg, ZR36057_MMBR); 503 reg = 504 mask_line_size - (zr->overlay_settings.width + 505 31) / 32; 506 if (DispMode == 0) 507 reg += mask_line_size; 508 reg <<= ZR36057_OCR_MaskStride; 509 btwrite(reg, ZR36057_OCR); 510 } 511 512 zr36057_adjust_vfe(zr, zr->codec_mode); 513} 514 515/* 516 * Switch overlay on or off 517 */ 518 519void 520zr36057_overlay (struct zoran *zr, 521 int on) 522{ 523 u32 reg; 524 525 if (on) { 526 /* do the necessary settings ... */ 527 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */ 528 529 zr36057_set_vfe(zr, 530 zr->overlay_settings.width, 531 zr->overlay_settings.height, 532 zr->overlay_settings.format); 533 534 /* Start and length of each line MUST be 4-byte aligned. 535 * This should be allready checked before the call to this routine. 536 * All error messages are internal driver checking only! */ 537 538 /* video display top and bottom registers */ 539 reg = (long) zr->buffer.base + 540 zr->overlay_settings.x * 541 ((zr->overlay_settings.format->depth + 7) / 8) + 542 zr->overlay_settings.y * 543 zr->buffer.bytesperline; 544 btwrite(reg, ZR36057_VDTR); 545 if (reg & 3) 546 dprintk(1, 547 KERN_ERR 548 "%s: zr36057_overlay() - video_address not aligned\n", 549 ZR_DEVNAME(zr)); 550 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 551 reg += zr->buffer.bytesperline; 552 btwrite(reg, ZR36057_VDBR); 553 554 /* video stride, status, and frame grab register */ 555 reg = zr->buffer.bytesperline - 556 zr->overlay_settings.width * 557 ((zr->overlay_settings.format->depth + 7) / 8); 558 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 559 reg += zr->buffer.bytesperline; 560 if (reg & 3) 561 dprintk(1, 562 KERN_ERR 563 "%s: zr36057_overlay() - video_stride not aligned\n", 564 ZR_DEVNAME(zr)); 565 reg = (reg << ZR36057_VSSFGR_DispStride); 566 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */ 567 btwrite(reg, ZR36057_VSSFGR); 568 569 /* Set overlay clipping */ 570 if (zr->overlay_settings.clipcount > 0) 571 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR); 572 573 /* ... and switch it on */ 574 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR); 575 } else { 576 /* Switch it off */ 577 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 578 } 579} 580 581/* 582 * The overlay mask has one bit for each pixel on a scan line, 583 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels. 584 */ 585 586void 587write_overlay_mask (struct file *file, 588 struct video_clip *vp, 589 int count) 590{ 591 struct zoran_fh *fh = file->private_data; 592 struct zoran *zr = fh->zr; 593 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 594 u32 *mask; 595 int x, y, width, height; 596 unsigned i, j, k; 597 u32 reg; 598 599 /* fill mask with one bits */ 600 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); 601 reg = 0; 602 603 for (i = 0; i < count; ++i) { 604 /* pick up local copy of clip */ 605 x = vp[i].x; 606 y = vp[i].y; 607 width = vp[i].width; 608 height = vp[i].height; 609 610 /* trim clips that extend beyond the window */ 611 if (x < 0) { 612 width += x; 613 x = 0; 614 } 615 if (y < 0) { 616 height += y; 617 y = 0; 618 } 619 if (x + width > fh->overlay_settings.width) { 620 width = fh->overlay_settings.width - x; 621 } 622 if (y + height > fh->overlay_settings.height) { 623 height = fh->overlay_settings.height - y; 624 } 625 626 /* ignore degenerate clips */ 627 if (height <= 0) { 628 continue; 629 } 630 if (width <= 0) { 631 continue; 632 } 633 634 /* apply clip for each scan line */ 635 for (j = 0; j < height; ++j) { 636 /* reset bit for each pixel */ 637 /* this can be optimized later if need be */ 638 mask = fh->overlay_mask + (y + j) * mask_line_size; 639 for (k = 0; k < width; ++k) { 640 mask[(x + k) / 32] &= 641 ~((u32) 1 << (x + k) % 32); 642 } 643 } 644 } 645} 646 647/* Enable/Disable uncompressed memory grabbing of the 36057 */ 648 649void 650zr36057_set_memgrab (struct zoran *zr, 651 int mode) 652{ 653 if (mode) { 654 if (btread(ZR36057_VSSFGR) & 655 (ZR36057_VSSFGR_SnapShot | ZR36057_VSSFGR_FrameGrab)) 656 dprintk(1, 657 KERN_WARNING 658 "%s: zr36057_set_memgrab(1) with SnapShot or FrameGrab on!?\n", 659 ZR_DEVNAME(zr)); 660 661 /* switch on VSync interrupts */ 662 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts 663 btor(zr->card.vsync_int, ZR36057_ICR); // SW 664 665 /* enable SnapShot */ 666 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 667 668 /* Set zr36057 video front end and enable video */ 669 zr36057_set_vfe(zr, zr->v4l_settings.width, 670 zr->v4l_settings.height, 671 zr->v4l_settings.format); 672 673 zr->v4l_memgrab_active = 1; 674 } else { 675 zr->v4l_memgrab_active = 0; 676 677 /* switch off VSync interrupts */ 678 btand(~zr->card.vsync_int, ZR36057_ICR); // SW 679 680 /* reenable grabbing to screen if it was running */ 681 if (zr->v4l_overlay_active) { 682 zr36057_overlay(zr, 1); 683 } else { 684 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 685 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 686 } 687 } 688} 689 690int 691wait_grab_pending (struct zoran *zr) 692{ 693 unsigned long flags; 694 695 /* wait until all pending grabs are finished */ 696 697 if (!zr->v4l_memgrab_active) 698 return 0; 699 700 wait_event_interruptible(zr->v4l_capq, 701 (zr->v4l_pend_tail == zr->v4l_pend_head)); 702 if (signal_pending(current)) 703 return -ERESTARTSYS; 704 705 spin_lock_irqsave(&zr->spinlock, flags); 706 zr36057_set_memgrab(zr, 0); 707 spin_unlock_irqrestore(&zr->spinlock, flags); 708 709 return 0; 710} 711 712/***************************************************************************** 713 * * 714 * Set up the Buz-specific MJPEG part * 715 * * 716 *****************************************************************************/ 717 718static inline void 719set_frame (struct zoran *zr, 720 int val) 721{ 722 GPIO(zr, zr->card.gpio[GPIO_JPEG_FRAME], val); 723} 724 725static void 726set_videobus_dir (struct zoran *zr, 727 int val) 728{ 729 switch (zr->card.type) { 730 case LML33: 731 case LML33R10: 732 if (lml33dpath == 0) 733 GPIO(zr, 5, val); 734 else 735 GPIO(zr, 5, 1); 736 break; 737 default: 738 GPIO(zr, zr->card.gpio[GPIO_VID_DIR], 739 zr->card.gpio_pol[GPIO_VID_DIR] ? !val : val); 740 break; 741 } 742} 743 744static void 745init_jpeg_queue (struct zoran *zr) 746{ 747 int i; 748 749 /* re-initialize DMA ring stuff */ 750 zr->jpg_que_head = 0; 751 zr->jpg_dma_head = 0; 752 zr->jpg_dma_tail = 0; 753 zr->jpg_que_tail = 0; 754 zr->jpg_seq_num = 0; 755 zr->JPEG_error = 0; 756 zr->num_errors = 0; 757 zr->jpg_err_seq = 0; 758 zr->jpg_err_shift = 0; 759 zr->jpg_queued_num = 0; 760 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 761 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 762 } 763 for (i = 0; i < BUZ_NUM_STAT_COM; i++) { 764 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ 765 } 766} 767 768static void 769zr36057_set_jpg (struct zoran *zr, 770 enum zoran_codec_mode mode) 771{ 772 struct tvnorm *tvn; 773 u32 reg; 774 775 tvn = zr->timing; 776 777 /* assert P_Reset, disable code transfer, deassert Active */ 778 btwrite(0, ZR36057_JPC); 779 780 /* MJPEG compression mode */ 781 switch (mode) { 782 783 case BUZ_MODE_MOTION_COMPRESS: 784 default: 785 reg = ZR36057_JMC_MJPGCmpMode; 786 break; 787 788 case BUZ_MODE_MOTION_DECOMPRESS: 789 reg = ZR36057_JMC_MJPGExpMode; 790 reg |= ZR36057_JMC_SyncMstr; 791 /* RJ: The following is experimental - improves the output to screen */ 792 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM 793 break; 794 795 case BUZ_MODE_STILL_COMPRESS: 796 reg = ZR36057_JMC_JPGCmpMode; 797 break; 798 799 case BUZ_MODE_STILL_DECOMPRESS: 800 reg = ZR36057_JMC_JPGExpMode; 801 break; 802 803 } 804 reg |= ZR36057_JMC_JPG; 805 if (zr->jpg_settings.field_per_buff == 1) 806 reg |= ZR36057_JMC_Fld_per_buff; 807 btwrite(reg, ZR36057_JMC); 808 809 /* vertical */ 810 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR); 811 reg = (6 << ZR36057_VSP_VsyncSize) | 812 (tvn->Ht << ZR36057_VSP_FrmTot); 813 btwrite(reg, ZR36057_VSP); 814 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) | 815 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY); 816 btwrite(reg, ZR36057_FVAP); 817 818 /* horizontal */ 819 if (zr->card.vfe_pol.hsync_pol) 820 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 821 else 822 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 823 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) | 824 (tvn->Wt << ZR36057_HSP_LineTot); 825 btwrite(reg, ZR36057_HSP); 826 reg = ((zr->jpg_settings.img_x + 827 tvn->HStart + 4) << ZR36057_FHAP_NAX) | 828 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX); 829 btwrite(reg, ZR36057_FHAP); 830 831 /* field process parameters */ 832 if (zr->jpg_settings.odd_even) 833 reg = ZR36057_FPP_Odd_Even; 834 else 835 reg = 0; 836 837 btwrite(reg, ZR36057_FPP); 838 839 /* Set proper VCLK Polarity, else colors will be wrong during playback */ 840 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR); 841 842 /* code base address */ 843 reg = virt_to_bus(zr->stat_com); 844 btwrite(reg, ZR36057_JCBA); 845 846 /* FIFO threshold (FIFO is 160. double words) */ 847 /* NOTE: decimal values here */ 848 switch (mode) { 849 850 case BUZ_MODE_STILL_COMPRESS: 851 case BUZ_MODE_MOTION_COMPRESS: 852 if (zr->card.type != BUZ) 853 reg = 140; 854 else 855 reg = 60; 856 break; 857 858 case BUZ_MODE_STILL_DECOMPRESS: 859 case BUZ_MODE_MOTION_DECOMPRESS: 860 reg = 20; 861 break; 862 863 default: 864 reg = 80; 865 break; 866 867 } 868 btwrite(reg, ZR36057_JCFT); 869 zr36057_adjust_vfe(zr, mode); 870 871} 872 873void 874print_interrupts (struct zoran *zr) 875{ 876 int res, noerr = 0; 877 878 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr)); 879 if ((res = zr->field_counter) < -1 || res > 1) { 880 printk(" FD:%d", res); 881 } 882 if ((res = zr->intr_counter_GIRQ1) != 0) { 883 printk(" GIRQ1:%d", res); 884 noerr++; 885 } 886 if ((res = zr->intr_counter_GIRQ0) != 0) { 887 printk(" GIRQ0:%d", res); 888 noerr++; 889 } 890 if ((res = zr->intr_counter_CodRepIRQ) != 0) { 891 printk(" CodRepIRQ:%d", res); 892 noerr++; 893 } 894 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) { 895 printk(" JPEGRepIRQ:%d", res); 896 noerr++; 897 } 898 if (zr->JPEG_max_missed) { 899 printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed, 900 zr->JPEG_min_missed); 901 } 902 if (zr->END_event_missed) { 903 printk(" ENDs missed: %d", zr->END_event_missed); 904 } 905 //if (zr->jpg_queued_num) { 906 printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail, 907 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head); 908 //} 909 if (!noerr) { 910 printk(": no interrupts detected."); 911 } 912 printk("\n"); 913} 914 915void 916clear_interrupt_counters (struct zoran *zr) 917{ 918 zr->intr_counter_GIRQ1 = 0; 919 zr->intr_counter_GIRQ0 = 0; 920 zr->intr_counter_CodRepIRQ = 0; 921 zr->intr_counter_JPEGRepIRQ = 0; 922 zr->field_counter = 0; 923 zr->IRQ1_in = 0; 924 zr->IRQ1_out = 0; 925 zr->JPEG_in = 0; 926 zr->JPEG_out = 0; 927 zr->JPEG_0 = 0; 928 zr->JPEG_1 = 0; 929 zr->END_event_missed = 0; 930 zr->JPEG_missed = 0; 931 zr->JPEG_max_missed = 0; 932 zr->JPEG_min_missed = 0x7fffffff; 933} 934 935static u32 936count_reset_interrupt (struct zoran *zr) 937{ 938 u32 isr; 939 940 if ((isr = btread(ZR36057_ISR) & 0x78000000)) { 941 if (isr & ZR36057_ISR_GIRQ1) { 942 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR); 943 zr->intr_counter_GIRQ1++; 944 } 945 if (isr & ZR36057_ISR_GIRQ0) { 946 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR); 947 zr->intr_counter_GIRQ0++; 948 } 949 if (isr & ZR36057_ISR_CodRepIRQ) { 950 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR); 951 zr->intr_counter_CodRepIRQ++; 952 } 953 if (isr & ZR36057_ISR_JPEGRepIRQ) { 954 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR); 955 zr->intr_counter_JPEGRepIRQ++; 956 } 957 } 958 return isr; 959} 960 961/* hack */ 962extern void zr36016_write (struct videocodec *codec, 963 u16 reg, 964 u32 val); 965 966void 967jpeg_start (struct zoran *zr) 968{ 969 int reg; 970 971 zr->frame_num = 0; 972 973 /* deassert P_reset, disable code transfer, deassert Active */ 974 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC); 975 /* stop flushing the internal code buffer */ 976 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 977 /* enable code transfer */ 978 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC); 979 980 /* clear IRQs */ 981 btwrite(IRQ_MASK, ZR36057_ISR); 982 /* enable the JPEG IRQs */ 983 btwrite(zr->card.jpeg_int | 984 ZR36057_ICR_JPEGRepIRQ | 985 ZR36057_ICR_IntPinEn, 986 ZR36057_ICR); 987 988 set_frame(zr, 0); // \FRAME 989 990 /* set the JPEG codec guest ID */ 991 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) | 992 (0 << ZR36057_JCGI_JPEGuestReg); 993 btwrite(reg, ZR36057_JCGI); 994 995 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 && 996 zr->card.video_codec == CODEC_TYPE_ZR36050) { 997 /* Enable processing on the ZR36016 */ 998 if (zr->vfe) 999 zr36016_write(zr->vfe, 0, 1); 1000 1001 /* load the address of the GO register in the ZR36050 latch */ 1002 post_office_write(zr, 0, 0, 0); 1003 } 1004 1005 /* assert Active */ 1006 btor(ZR36057_JPC_Active, ZR36057_JPC); 1007 1008 /* enable the Go generation */ 1009 btor(ZR36057_JMC_Go_en, ZR36057_JMC); 1010 udelay(30); 1011 1012 set_frame(zr, 1); // /FRAME 1013 1014 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr)); 1015} 1016 1017void 1018zr36057_enable_jpg (struct zoran *zr, 1019 enum zoran_codec_mode mode) 1020{ 1021 static int zero = 0; 1022 static int one = 1; 1023 struct vfe_settings cap; 1024 int field_size = 1025 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff; 1026 1027 zr->codec_mode = mode; 1028 1029 cap.x = zr->jpg_settings.img_x; 1030 cap.y = zr->jpg_settings.img_y; 1031 cap.width = zr->jpg_settings.img_width; 1032 cap.height = zr->jpg_settings.img_height; 1033 cap.decimation = 1034 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8); 1035 cap.quality = zr->jpg_settings.jpg_comp.quality; 1036 1037 switch (mode) { 1038 1039 case BUZ_MODE_MOTION_COMPRESS: { 1040 struct jpeg_app_marker app; 1041 struct jpeg_com_marker com; 1042 1043 /* In motion compress mode, the decoder output must be enabled, and 1044 * the video bus direction set to input. 1045 */ 1046 set_videobus_dir(zr, 0); 1047 decoder_command(zr, DECODER_ENABLE_OUTPUT, &one); 1048 encoder_command(zr, ENCODER_SET_INPUT, &zero); 1049 1050 /* Take the JPEG codec and the VFE out of sleep */ 1051 jpeg_codec_sleep(zr, 0); 1052 1053 /* set JPEG app/com marker */ 1054 app.appn = zr->jpg_settings.jpg_comp.APPn; 1055 app.len = zr->jpg_settings.jpg_comp.APP_len; 1056 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60); 1057 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA, 1058 sizeof(struct jpeg_app_marker), &app); 1059 1060 com.len = zr->jpg_settings.jpg_comp.COM_len; 1061 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60); 1062 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA, 1063 sizeof(struct jpeg_com_marker), &com); 1064 1065 /* Setup the JPEG codec */ 1066 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE, 1067 sizeof(int), &field_size); 1068 zr->codec->set_video(zr->codec, zr->timing, &cap, 1069 &zr->card.vfe_pol); 1070 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION); 1071 1072 /* Setup the VFE */ 1073 if (zr->vfe) { 1074 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE, 1075 sizeof(int), &field_size); 1076 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1077 &zr->card.vfe_pol); 1078 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION); 1079 } 1080 1081 init_jpeg_queue(zr); 1082 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1083 1084 clear_interrupt_counters(zr); 1085 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n", 1086 ZR_DEVNAME(zr)); 1087 break; 1088 } 1089 1090 case BUZ_MODE_MOTION_DECOMPRESS: 1091 /* In motion decompression mode, the decoder output must be disabled, and 1092 * the video bus direction set to output. 1093 */ 1094 decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero); 1095 set_videobus_dir(zr, 1); 1096 encoder_command(zr, ENCODER_SET_INPUT, &one); 1097 1098 /* Take the JPEG codec and the VFE out of sleep */ 1099 jpeg_codec_sleep(zr, 0); 1100 /* Setup the VFE */ 1101 if (zr->vfe) { 1102 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1103 &zr->card.vfe_pol); 1104 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION); 1105 } 1106 /* Setup the JPEG codec */ 1107 zr->codec->set_video(zr->codec, zr->timing, &cap, 1108 &zr->card.vfe_pol); 1109 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION); 1110 1111 init_jpeg_queue(zr); 1112 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1113 1114 clear_interrupt_counters(zr); 1115 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n", 1116 ZR_DEVNAME(zr)); 1117 break; 1118 1119 case BUZ_MODE_IDLE: 1120 default: 1121 /* shut down processing */ 1122 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ), 1123 ZR36057_ICR); 1124 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ, 1125 ZR36057_ISR); 1126 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en 1127 1128 msleep(50); 1129 1130 set_videobus_dir(zr, 0); 1131 set_frame(zr, 1); // /FRAME 1132 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush 1133 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active 1134 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC); 1135 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC); 1136 jpeg_codec_reset(zr); 1137 jpeg_codec_sleep(zr, 1); 1138 zr36057_adjust_vfe(zr, mode); 1139 1140 decoder_command(zr, DECODER_ENABLE_OUTPUT, &one); 1141 encoder_command(zr, ENCODER_SET_INPUT, &zero); 1142 1143 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr)); 1144 break; 1145 1146 } 1147} 1148 1149/* when this is called the spinlock must be held */ 1150void 1151zoran_feed_stat_com (struct zoran *zr) 1152{ 1153 /* move frames from pending queue to DMA */ 1154 1155 int frame, i, max_stat_com; 1156 1157 max_stat_com = 1158 (zr->jpg_settings.TmpDcm == 1159 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1); 1160 1161 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com && 1162 zr->jpg_dma_head < zr->jpg_que_head) { 1163 1164 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME]; 1165 if (zr->jpg_settings.TmpDcm == 1) { 1166 /* fill 1 stat_com entry */ 1167 i = (zr->jpg_dma_head - 1168 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1169 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1170 break; 1171 zr->stat_com[i] = 1172 cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus); 1173 } else { 1174 /* fill 2 stat_com entries */ 1175 i = ((zr->jpg_dma_head - 1176 zr->jpg_err_shift) & 1) * 2; 1177 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1178 break; 1179 zr->stat_com[i] = 1180 cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus); 1181 zr->stat_com[i + 1] = 1182 cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus); 1183 } 1184 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA; 1185 zr->jpg_dma_head++; 1186 1187 } 1188 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) 1189 zr->jpg_queued_num++; 1190} 1191 1192/* when this is called the spinlock must be held */ 1193static void 1194zoran_reap_stat_com (struct zoran *zr) 1195{ 1196 /* move frames from DMA queue to done queue */ 1197 1198 int i; 1199 u32 stat_com; 1200 unsigned int seq; 1201 unsigned int dif; 1202 struct zoran_jpg_buffer *buffer; 1203 int frame; 1204 1205 /* In motion decompress we don't have a hardware frame counter, 1206 * we just count the interrupts here */ 1207 1208 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1209 zr->jpg_seq_num++; 1210 } 1211 while (zr->jpg_dma_tail < zr->jpg_dma_head) { 1212 if (zr->jpg_settings.TmpDcm == 1) 1213 i = (zr->jpg_dma_tail - 1214 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1215 else 1216 i = ((zr->jpg_dma_tail - 1217 zr->jpg_err_shift) & 1) * 2 + 1; 1218 1219 stat_com = le32_to_cpu(zr->stat_com[i]); 1220 1221 if ((stat_com & 1) == 0) { 1222 return; 1223 } 1224 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1225 buffer = &zr->jpg_buffers.buffer[frame]; 1226 do_gettimeofday(&buffer->bs.timestamp); 1227 1228 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1229 buffer->bs.length = (stat_com & 0x7fffff) >> 1; 1230 1231 /* update sequence number with the help of the counter in stat_com */ 1232 1233 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff; 1234 dif = (seq - zr->jpg_seq_num) & 0xff; 1235 zr->jpg_seq_num += dif; 1236 } else { 1237 buffer->bs.length = 0; 1238 } 1239 buffer->bs.seq = 1240 zr->jpg_settings.TmpDcm == 1241 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num; 1242 buffer->state = BUZ_STATE_DONE; 1243 1244 zr->jpg_dma_tail++; 1245 } 1246} 1247 1248static void 1249error_handler (struct zoran *zr, 1250 u32 astat, 1251 u32 stat) 1252{ 1253 /* This is JPEG error handling part */ 1254 if ((zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) && 1255 (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS)) { 1256 //dprintk(1, KERN_ERR "%s: Internal error: error handling request in mode %d\n", ZR_DEVNAME(zr), zr->codec_mode); 1257 return; 1258 } 1259 1260 if ((stat & 1) == 0 && 1261 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS && 1262 zr->jpg_dma_tail - zr->jpg_que_tail >= 1263 zr->jpg_buffers.num_buffers) { 1264 /* No free buffers... */ 1265 zoran_reap_stat_com(zr); 1266 zoran_feed_stat_com(zr); 1267 wake_up_interruptible(&zr->jpg_capq); 1268 zr->JPEG_missed = 0; 1269 return; 1270 } 1271 1272 if (zr->JPEG_error != 1) { 1273 /* 1274 * First entry: error just happened during normal operation 1275 * 1276 * In BUZ_MODE_MOTION_COMPRESS: 1277 * 1278 * Possible glitch in TV signal. In this case we should 1279 * stop the codec and wait for good quality signal before 1280 * restarting it to avoid further problems 1281 * 1282 * In BUZ_MODE_MOTION_DECOMPRESS: 1283 * 1284 * Bad JPEG frame: we have to mark it as processed (codec crashed 1285 * and was not able to do it itself), and to remove it from queue. 1286 */ 1287 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 1288 udelay(1); 1289 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8; 1290 btwrite(0, ZR36057_JPC); 1291 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 1292 jpeg_codec_reset(zr); 1293 jpeg_codec_sleep(zr, 1); 1294 zr->JPEG_error = 1; 1295 zr->num_errors++; 1296 1297 /* Report error */ 1298 if (*zr_debug > 1 && zr->num_errors <= 8) { 1299 long frame; 1300 frame = 1301 zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1302 printk(KERN_ERR 1303 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ", 1304 ZR_DEVNAME(zr), stat, zr->last_isr, 1305 zr->jpg_que_tail, zr->jpg_dma_tail, 1306 zr->jpg_dma_head, zr->jpg_que_head, 1307 zr->jpg_seq_num, frame); 1308 printk("stat_com frames:"); 1309 { 1310 int i, j; 1311 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1312 for (i = 0; 1313 i < zr->jpg_buffers.num_buffers; 1314 i++) { 1315 if (le32_to_cpu(zr->stat_com[j]) == 1316 zr->jpg_buffers. 1317 buffer[i]. 1318 frag_tab_bus) { 1319 printk("% d->%d", 1320 j, i); 1321 } 1322 } 1323 } 1324 printk("\n"); 1325 } 1326 } 1327 /* Find an entry in stat_com and rotate contents */ 1328 { 1329 int i; 1330 1331 if (zr->jpg_settings.TmpDcm == 1) 1332 i = (zr->jpg_dma_tail - 1333 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1334 else 1335 i = ((zr->jpg_dma_tail - 1336 zr->jpg_err_shift) & 1) * 2; 1337 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1338 /* Mimic zr36067 operation */ 1339 zr->stat_com[i] |= cpu_to_le32(1); 1340 if (zr->jpg_settings.TmpDcm != 1) 1341 zr->stat_com[i + 1] |= cpu_to_le32(1); 1342 /* Refill */ 1343 zoran_reap_stat_com(zr); 1344 zoran_feed_stat_com(zr); 1345 wake_up_interruptible(&zr->jpg_capq); 1346 /* Find an entry in stat_com again after refill */ 1347 if (zr->jpg_settings.TmpDcm == 1) 1348 i = (zr->jpg_dma_tail - 1349 zr->jpg_err_shift) & 1350 BUZ_MASK_STAT_COM; 1351 else 1352 i = ((zr->jpg_dma_tail - 1353 zr->jpg_err_shift) & 1) * 2; 1354 } 1355 if (i) { 1356 /* Rotate stat_comm entries to make current entry first */ 1357 int j; 1358 u32 bus_addr[BUZ_NUM_STAT_COM]; 1359 1360 /* Here we are copying the stat_com array, which 1361 * is already in little endian format, so 1362 * no endian conversions here 1363 */ 1364 memcpy(bus_addr, zr->stat_com, 1365 sizeof(bus_addr)); 1366 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1367 zr->stat_com[j] = 1368 bus_addr[(i + j) & 1369 BUZ_MASK_STAT_COM]; 1370 1371 } 1372 zr->jpg_err_shift += i; 1373 zr->jpg_err_shift &= BUZ_MASK_STAT_COM; 1374 } 1375 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) 1376 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */ 1377 } 1378 } 1379 1380 /* Now the stat_comm buffer is ready for restart */ 1381 do { 1382 int status, mode; 1383 1384 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1385 decoder_command(zr, DECODER_GET_STATUS, &status); 1386 mode = CODEC_DO_COMPRESSION; 1387 } else { 1388 status = 0; 1389 mode = CODEC_DO_EXPANSION; 1390 } 1391 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1392 (status & DECODER_STATUS_GOOD)) { 1393 /********** RESTART code *************/ 1394 jpeg_codec_reset(zr); 1395 zr->codec->set_mode(zr->codec, mode); 1396 zr36057_set_jpg(zr, zr->codec_mode); 1397 jpeg_start(zr); 1398 1399 if (zr->num_errors <= 8) 1400 dprintk(2, KERN_INFO "%s: Restart\n", 1401 ZR_DEVNAME(zr)); 1402 1403 zr->JPEG_missed = 0; 1404 zr->JPEG_error = 2; 1405 /********** End RESTART code ***********/ 1406 } 1407 } while (0); 1408} 1409 1410irqreturn_t 1411zoran_irq (int irq, 1412 void *dev_id) 1413{ 1414 u32 stat, astat; 1415 int count; 1416 struct zoran *zr; 1417 unsigned long flags; 1418 1419 zr = dev_id; 1420 count = 0; 1421 1422 if (zr->testing) { 1423 /* Testing interrupts */ 1424 spin_lock_irqsave(&zr->spinlock, flags); 1425 while ((stat = count_reset_interrupt(zr))) { 1426 if (count++ > 100) { 1427 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1428 dprintk(1, 1429 KERN_ERR 1430 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n", 1431 ZR_DEVNAME(zr), stat); 1432 wake_up_interruptible(&zr->test_q); 1433 } 1434 } 1435 zr->last_isr = stat; 1436 spin_unlock_irqrestore(&zr->spinlock, flags); 1437 return IRQ_HANDLED; 1438 } 1439 1440 spin_lock_irqsave(&zr->spinlock, flags); 1441 while (1) { 1442 /* get/clear interrupt status bits */ 1443 stat = count_reset_interrupt(zr); 1444 astat = stat & IRQ_MASK; 1445 if (!astat) { 1446 break; 1447 } 1448 dprintk(4, 1449 KERN_DEBUG 1450 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n", 1451 astat, btread(ZR36057_ICR)); 1452 if (astat & zr->card.vsync_int) { // SW 1453 1454 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1455 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1456 /* count missed interrupts */ 1457 zr->JPEG_missed++; 1458 } 1459 //post_office_read(zr,1,0); 1460 /* Interrupts may still happen when 1461 * zr->v4l_memgrab_active is switched off. 1462 * We simply ignore them */ 1463 1464 if (zr->v4l_memgrab_active) { 1465 1466 /* A lot more checks should be here ... */ 1467 if ((btread(ZR36057_VSSFGR) & 1468 ZR36057_VSSFGR_SnapShot) == 0) 1469 dprintk(1, 1470 KERN_WARNING 1471 "%s: BuzIRQ with SnapShot off ???\n", 1472 ZR_DEVNAME(zr)); 1473 1474 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) { 1475 /* There is a grab on a frame going on, check if it has finished */ 1476 1477 if ((btread(ZR36057_VSSFGR) & 1478 ZR36057_VSSFGR_FrameGrab) == 1479 0) { 1480 /* it is finished, notify the user */ 1481 1482 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE; 1483 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq; 1484 do_gettimeofday(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp); 1485 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 1486 zr->v4l_pend_tail++; 1487 } 1488 } 1489 1490 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE) 1491 wake_up_interruptible(&zr->v4l_capq); 1492 1493 /* Check if there is another grab queued */ 1494 1495 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE && 1496 zr->v4l_pend_tail != zr->v4l_pend_head) { 1497 1498 int frame = zr->v4l_pend[zr->v4l_pend_tail & 1499 V4L_MASK_FRAME]; 1500 u32 reg; 1501 1502 zr->v4l_grab_frame = frame; 1503 1504 /* Set zr36057 video front end and enable video */ 1505 1506 /* Buffer address */ 1507 1508 reg = 1509 zr->v4l_buffers.buffer[frame]. 1510 fbuffer_bus; 1511 btwrite(reg, ZR36057_VDTR); 1512 if (zr->v4l_settings.height > 1513 BUZ_MAX_HEIGHT / 2) 1514 reg += 1515 zr->v4l_settings. 1516 bytesperline; 1517 btwrite(reg, ZR36057_VDBR); 1518 1519 /* video stride, status, and frame grab register */ 1520 reg = 0; 1521 if (zr->v4l_settings.height > 1522 BUZ_MAX_HEIGHT / 2) 1523 reg += 1524 zr->v4l_settings. 1525 bytesperline; 1526 reg = 1527 (reg << 1528 ZR36057_VSSFGR_DispStride); 1529 reg |= ZR36057_VSSFGR_VidOvf; 1530 reg |= ZR36057_VSSFGR_SnapShot; 1531 reg |= ZR36057_VSSFGR_FrameGrab; 1532 btwrite(reg, ZR36057_VSSFGR); 1533 1534 btor(ZR36057_VDCR_VidEn, 1535 ZR36057_VDCR); 1536 } 1537 } 1538 1539 /* even if we don't grab, we do want to increment 1540 * the sequence counter to see lost frames */ 1541 zr->v4l_grab_seq++; 1542 } 1543#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ) 1544 if (astat & ZR36057_ISR_CodRepIRQ) { 1545 zr->intr_counter_CodRepIRQ++; 1546 IDEBUG(printk 1547 (KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", 1548 ZR_DEVNAME(zr))); 1549 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR); 1550 } 1551#endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */ 1552 1553#if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) 1554 if (astat & ZR36057_ISR_JPEGRepIRQ) { 1555 1556 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1557 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1558 if (*zr_debug > 1 && 1559 (!zr->frame_num || zr->JPEG_error)) { 1560 printk(KERN_INFO 1561 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n", 1562 ZR_DEVNAME(zr), stat, 1563 zr->jpg_settings.odd_even, 1564 zr->jpg_settings. 1565 field_per_buff, 1566 zr->JPEG_missed); 1567 { 1568 char sc[] = "0000"; 1569 char sv[5]; 1570 int i; 1571 strcpy(sv, sc); 1572 for (i = 0; i < 4; i++) { 1573 if (le32_to_cpu(zr->stat_com[i]) & 1) 1574 sv[i] = '1'; 1575 } 1576 sv[4] = 0; 1577 printk(KERN_INFO 1578 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n", 1579 ZR_DEVNAME(zr), sv, 1580 zr->jpg_que_tail, 1581 zr->jpg_dma_tail, 1582 zr->jpg_dma_head, 1583 zr->jpg_que_head); 1584 } 1585 } else { 1586 if (zr->JPEG_missed > zr->JPEG_max_missed) // Get statistics 1587 zr->JPEG_max_missed = 1588 zr->JPEG_missed; 1589 if (zr->JPEG_missed < 1590 zr->JPEG_min_missed) 1591 zr->JPEG_min_missed = 1592 zr->JPEG_missed; 1593 } 1594 1595 if (*zr_debug > 2 && zr->frame_num < 6) { 1596 int i; 1597 printk("%s: seq=%ld stat_com:", 1598 ZR_DEVNAME(zr), zr->jpg_seq_num); 1599 for (i = 0; i < 4; i++) { 1600 printk(" %08x", 1601 le32_to_cpu(zr->stat_com[i])); 1602 } 1603 printk("\n"); 1604 } 1605 zr->frame_num++; 1606 zr->JPEG_missed = 0; 1607 zr->JPEG_error = 0; 1608 zoran_reap_stat_com(zr); 1609 zoran_feed_stat_com(zr); 1610 wake_up_interruptible(&zr->jpg_capq); 1611 } /*else { 1612 dprintk(1, 1613 KERN_ERR 1614 "%s: JPEG interrupt while not in motion (de)compress mode!\n", 1615 ZR_DEVNAME(zr)); 1616 }*/ 1617 } 1618#endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */ 1619 1620 /* DATERR, too many fields missed, error processing */ 1621 if ((astat & zr->card.jpeg_int) || 1622 zr->JPEG_missed > 25 || 1623 zr->JPEG_error == 1 || 1624 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) && 1625 (zr->frame_num & (zr->JPEG_missed > 1626 zr->jpg_settings.field_per_buff)))) { 1627 error_handler(zr, astat, stat); 1628 } 1629 1630 count++; 1631 if (count > 10) { 1632 dprintk(2, KERN_WARNING "%s: irq loop %d\n", 1633 ZR_DEVNAME(zr), count); 1634 if (count > 20) { 1635 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1636 dprintk(2, 1637 KERN_ERR 1638 "%s: IRQ lockup, cleared int mask\n", 1639 ZR_DEVNAME(zr)); 1640 break; 1641 } 1642 } 1643 zr->last_isr = stat; 1644 } 1645 spin_unlock_irqrestore(&zr->spinlock, flags); 1646 1647 return IRQ_HANDLED; 1648} 1649 1650void 1651zoran_set_pci_master (struct zoran *zr, 1652 int set_master) 1653{ 1654 if (set_master) { 1655 pci_set_master(zr->pci_dev); 1656 } else { 1657 u16 command; 1658 1659 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command); 1660 command &= ~PCI_COMMAND_MASTER; 1661 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command); 1662 } 1663} 1664 1665void 1666zoran_init_hardware (struct zoran *zr) 1667{ 1668 int j, zero = 0; 1669 1670 /* Enable bus-mastering */ 1671 zoran_set_pci_master(zr, 1); 1672 1673 /* Initialize the board */ 1674 if (zr->card.init) { 1675 zr->card.init(zr); 1676 } 1677 1678 j = zr->card.input[zr->input].muxsel; 1679 1680 decoder_command(zr, 0, NULL); 1681 decoder_command(zr, DECODER_SET_NORM, &zr->norm); 1682 decoder_command(zr, DECODER_SET_INPUT, &j); 1683 1684 encoder_command(zr, 0, NULL); 1685 encoder_command(zr, ENCODER_SET_NORM, &zr->norm); 1686 encoder_command(zr, ENCODER_SET_INPUT, &zero); 1687 1688 /* toggle JPEG codec sleep to sync PLL */ 1689 jpeg_codec_sleep(zr, 1); 1690 jpeg_codec_sleep(zr, 0); 1691 1692 /* set individual interrupt enables (without GIRQ1) 1693 * but don't global enable until zoran_open() */ 1694 1695 //btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR); // SW 1696 // It looks like using only JPEGRepIRQEn is not always reliable, 1697 // may be when JPEG codec crashes it won't generate IRQ? So, 1698 /*CP*/ // btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM WHY ? LP 1699 zr36057_init_vfe(zr); 1700 1701 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1702 1703 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts 1704} 1705 1706void 1707zr36057_restart (struct zoran *zr) 1708{ 1709 btwrite(0, ZR36057_SPGPPCR); 1710 mdelay(1); 1711 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR); 1712 mdelay(1); 1713 1714 /* assert P_Reset */ 1715 btwrite(0, ZR36057_JPC); 1716 /* set up GPIO direction - all output */ 1717 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR); 1718 1719 /* set up GPIO pins and guest bus timing */ 1720 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1); 1721} 1722 1723/* 1724 * initialize video front end 1725 */ 1726 1727static void 1728zr36057_init_vfe (struct zoran *zr) 1729{ 1730 u32 reg; 1731 1732 reg = btread(ZR36057_VFESPFR); 1733 reg |= ZR36057_VFESPFR_LittleEndian; 1734 reg &= ~ZR36057_VFESPFR_VCLKPol; 1735 reg |= ZR36057_VFESPFR_ExtFl; 1736 reg |= ZR36057_VFESPFR_TopField; 1737 btwrite(reg, ZR36057_VFESPFR); 1738 reg = btread(ZR36057_VDCR); 1739 if (pci_pci_problems & PCIPCI_TRITON) 1740 // || zr->revision < 1) // Revision 1 has also Triton support 1741 reg &= ~ZR36057_VDCR_Triton; 1742 else 1743 reg |= ZR36057_VDCR_Triton; 1744 btwrite(reg, ZR36057_VDCR); 1745} 1746 1747/* 1748 * Interface to decoder and encoder chips using i2c bus 1749 */ 1750 1751int 1752decoder_command (struct zoran *zr, 1753 int cmd, 1754 void *data) 1755{ 1756 if (zr->decoder == NULL) 1757 return -EIO; 1758 1759 if (zr->card.type == LML33 && 1760 (cmd == DECODER_SET_NORM || DECODER_SET_INPUT)) { 1761 int res; 1762 1763 // Bt819 needs to reset its FIFO buffer using #FRST pin and 1764 // LML33 card uses GPIO(7) for that. 1765 GPIO(zr, 7, 0); 1766 res = zr->decoder->driver->command(zr->decoder, cmd, data); 1767 // Pull #FRST high. 1768 GPIO(zr, 7, 1); 1769 return res; 1770 } else 1771 return zr->decoder->driver->command(zr->decoder, cmd, 1772 data); 1773} 1774 1775int 1776encoder_command (struct zoran *zr, 1777 int cmd, 1778 void *data) 1779{ 1780 if (zr->encoder == NULL) 1781 return -1; 1782 1783 return zr->encoder->driver->command(zr->encoder, cmd, data); 1784} 1785