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 35 #include <linux/interrupt.h> 36 #include <linux/proc_fs.h> 37 #include <linux/i2c.h> 38 #include <linux/i2c-algo-bit.h> 39 #include <linux/videodev2.h> 40 #include <media/v4l2-common.h> 41 #include <linux/spinlock.h> 42 #include <linux/sem.h> 43 44 #include <linux/pci.h> 45 #include <linux/delay.h> 46 #include <linux/wait.h> 47 48 #include <asm/byteorder.h> 49 #include <asm/io.h> 50 51 #include "videocodec.h" 52 #include "zoran.h" 53 #include "zoran_device.h" 54 #include "zoran_card.h" 55 56 #define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \ 57 ZR36057_ISR_GIRQ1 | \ 58 ZR36057_ISR_JPEGRepIRQ ) 59 60 static bool lml33dpath; /* default = 0 61 * 1 will use digital path in capture 62 * mode instead of analog. It can be 63 * used for picture adjustments using 64 * tool like xawtv while watching image 65 * on TV monitor connected to the output. 66 * However, due to absence of 75 Ohm 67 * load on Bt819 input, there will be 68 * some image imperfections */ 69 70 module_param(lml33dpath, bool, 0644); 71 MODULE_PARM_DESC(lml33dpath, 72 "Use digital path capture mode (on LML33 cards)"); 73 74 static void 75 zr36057_init_vfe (struct zoran *zr); 76 77 /* 78 * General Purpose I/O and Guest bus access 79 */ 80 81 /* 82 * This is a bit tricky. When a board lacks a GPIO function, the corresponding 83 * GPIO bit number in the card_info structure is set to 0. 84 */ 85 86 void 87 GPIO (struct zoran *zr, 88 int bit, 89 unsigned int value) 90 { 91 u32 reg; 92 u32 mask; 93 94 /* Make sure the bit number is legal 95 * A bit number of -1 (lacking) gives a mask of 0, 96 * making it harmless */ 97 mask = (1 << (24 + bit)) & 0xff000000; 98 reg = btread(ZR36057_GPPGCR1) & ~mask; 99 if (value) { 100 reg |= mask; 101 } 102 btwrite(reg, ZR36057_GPPGCR1); 103 udelay(1); 104 } 105 106 /* 107 * Wait til post office is no longer busy 108 */ 109 110 int 111 post_office_wait (struct zoran *zr) 112 { 113 u32 por; 114 115 // while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) { 116 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) { 117 /* wait for something to happen */ 118 } 119 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) { 120 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */ 121 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr), 122 por); 123 return -1; 124 } 125 126 return 0; 127 } 128 129 int 130 post_office_write (struct zoran *zr, 131 unsigned int guest, 132 unsigned int reg, 133 unsigned int value) 134 { 135 u32 por; 136 137 por = 138 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | 139 ((reg & 7) << 16) | (value & 0xFF); 140 btwrite(por, ZR36057_POR); 141 142 return post_office_wait(zr); 143 } 144 145 int 146 post_office_read (struct zoran *zr, 147 unsigned int guest, 148 unsigned int reg) 149 { 150 u32 por; 151 152 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16); 153 btwrite(por, ZR36057_POR); 154 if (post_office_wait(zr) < 0) { 155 return -1; 156 } 157 158 return btread(ZR36057_POR) & 0xFF; 159 } 160 161 /* 162 * detect guests 163 */ 164 165 static void 166 dump_guests (struct zoran *zr) 167 { 168 if (zr36067_debug > 2) { 169 int i, guest[8]; 170 171 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 172 guest[i] = post_office_read(zr, i, 0); 173 } 174 175 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 176 177 for (i = 1; i < 8; i++) { 178 printk(" 0x%02x", guest[i]); 179 } 180 printk("\n"); 181 } 182 } 183 184 static inline unsigned long 185 get_time (void) 186 { 187 struct timeval tv; 188 189 do_gettimeofday(&tv); 190 return (1000000 * tv.tv_sec + tv.tv_usec); 191 } 192 193 void 194 detect_guest_activity (struct zoran *zr) 195 { 196 int timeout, i, j, res, guest[8], guest0[8], change[8][3]; 197 unsigned long t0, t1; 198 199 dump_guests(zr); 200 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n", 201 ZR_DEVNAME(zr)); 202 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 203 guest0[i] = guest[i] = post_office_read(zr, i, 0); 204 } 205 206 timeout = 0; 207 j = 0; 208 t0 = get_time(); 209 while (timeout < 10000) { 210 udelay(10); 211 timeout++; 212 for (i = 1; (i < 8) && (j < 8); i++) { 213 res = post_office_read(zr, i, 0); 214 if (res != guest[i]) { 215 t1 = get_time(); 216 change[j][0] = (t1 - t0); 217 t0 = t1; 218 change[j][1] = i; 219 change[j][2] = res; 220 j++; 221 guest[i] = res; 222 } 223 } 224 if (j >= 8) 225 break; 226 } 227 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 228 229 for (i = 1; i < 8; i++) { 230 printk(" 0x%02x", guest0[i]); 231 } 232 printk("\n"); 233 if (j == 0) { 234 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr)); 235 return; 236 } 237 for (i = 0; i < j; i++) { 238 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr), 239 change[i][0], change[i][1], change[i][2]); 240 } 241 } 242 243 /* 244 * JPEG Codec access 245 */ 246 247 void 248 jpeg_codec_sleep (struct zoran *zr, 249 int sleep) 250 { 251 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep); 252 if (!sleep) { 253 dprintk(3, 254 KERN_DEBUG 255 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n", 256 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 257 udelay(500); 258 } else { 259 dprintk(3, 260 KERN_DEBUG 261 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n", 262 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 263 udelay(2); 264 } 265 } 266 267 int 268 jpeg_codec_reset (struct zoran *zr) 269 { 270 /* Take the codec out of sleep */ 271 jpeg_codec_sleep(zr, 0); 272 273 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) { 274 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0, 275 0); 276 udelay(2); 277 } else { 278 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0); 279 udelay(2); 280 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1); 281 udelay(2); 282 } 283 284 return 0; 285 } 286 287 /* 288 * Set the registers for the size we have specified. Don't bother 289 * trying to understand this without the ZR36057 manual in front of 290 * you [AC]. 291 * 292 * PS: The manual is free for download in .pdf format from 293 * www.zoran.com - nicely done those folks. 294 */ 295 296 static void 297 zr36057_adjust_vfe (struct zoran *zr, 298 enum zoran_codec_mode mode) 299 { 300 u32 reg; 301 302 switch (mode) { 303 case BUZ_MODE_MOTION_DECOMPRESS: 304 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 305 reg = btread(ZR36057_VFEHCR); 306 if ((reg & (1 << 10)) && zr->card.type != LML33R10) { 307 reg += ((1 << 10) | 1); 308 } 309 btwrite(reg, ZR36057_VFEHCR); 310 break; 311 case BUZ_MODE_MOTION_COMPRESS: 312 case BUZ_MODE_IDLE: 313 default: 314 if ((zr->norm & V4L2_STD_NTSC) || 315 (zr->card.type == LML33R10 && 316 (zr->norm & V4L2_STD_PAL))) 317 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 318 else 319 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 320 reg = btread(ZR36057_VFEHCR); 321 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) { 322 reg -= ((1 << 10) | 1); 323 } 324 btwrite(reg, ZR36057_VFEHCR); 325 break; 326 } 327 } 328 329 /* 330 * set geometry 331 */ 332 333 static void 334 zr36057_set_vfe (struct zoran *zr, 335 int video_width, 336 int video_height, 337 const struct zoran_format *format) 338 { 339 struct tvnorm *tvn; 340 unsigned HStart, HEnd, VStart, VEnd; 341 unsigned DispMode; 342 unsigned VidWinWid, VidWinHt; 343 unsigned hcrop1, hcrop2, vcrop1, vcrop2; 344 unsigned Wa, We, Ha, He; 345 unsigned X, Y, HorDcm, VerDcm; 346 u32 reg; 347 unsigned mask_line_size; 348 349 tvn = zr->timing; 350 351 Wa = tvn->Wa; 352 Ha = tvn->Ha; 353 354 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n", 355 ZR_DEVNAME(zr), video_width, video_height); 356 357 if (video_width < BUZ_MIN_WIDTH || 358 video_height < BUZ_MIN_HEIGHT || 359 video_width > Wa || video_height > Ha) { 360 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", 361 ZR_DEVNAME(zr), video_width, video_height); 362 return; 363 } 364 365 /**** zr36057 ****/ 366 367 /* horizontal */ 368 VidWinWid = video_width; 369 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa); 370 We = (VidWinWid * 64) / X; 371 HorDcm = 64 - X; 372 hcrop1 = 2 * ((tvn->Wa - We) / 4); 373 hcrop2 = tvn->Wa - We - hcrop1; 374 HStart = tvn->HStart ? tvn->HStart : 1; 375 /* (Ronald) Original comment: 376 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+" 377 * this is false. It inverses chroma values on the LML33R10 (so Cr 378 * suddenly is shown as Cb and reverse, really cool effect if you 379 * want to see blue faces, not useful otherwise). So don't use |1. 380 * However, the DC10 has '0' as HStart, but does need |1, so we 381 * use a dirty check... 382 */ 383 HEnd = HStart + tvn->Wa - 1; 384 HStart += hcrop1; 385 HEnd -= hcrop2; 386 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart) 387 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd); 388 if (zr->card.vfe_pol.hsync_pol) 389 reg |= ZR36057_VFEHCR_HSPol; 390 btwrite(reg, ZR36057_VFEHCR); 391 392 /* Vertical */ 393 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2); 394 VidWinHt = DispMode ? video_height : video_height / 2; 395 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha); 396 He = (VidWinHt * 64) / Y; 397 VerDcm = 64 - Y; 398 vcrop1 = (tvn->Ha / 2 - He) / 2; 399 vcrop2 = tvn->Ha / 2 - He - vcrop1; 400 VStart = tvn->VStart; 401 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP 402 VStart += vcrop1; 403 VEnd -= vcrop2; 404 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart) 405 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd); 406 if (zr->card.vfe_pol.vsync_pol) 407 reg |= ZR36057_VFEVCR_VSPol; 408 btwrite(reg, ZR36057_VFEVCR); 409 410 /* scaler and pixel format */ 411 reg = 0; 412 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); 413 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); 414 reg |= (DispMode << ZR36057_VFESPFR_DispMode); 415 /* RJ: I don't know, why the following has to be the opposite 416 * of the corresponding ZR36060 setting, but only this way 417 * we get the correct colors when uncompressing to the screen */ 418 //reg |= ZR36057_VFESPFR_VCLKPol; /**/ 419 /* RJ: Don't know if that is needed for NTSC also */ 420 if (!(zr->norm & V4L2_STD_NTSC)) 421 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang 422 reg |= ZR36057_VFESPFR_TopField; 423 if (HorDcm >= 48) { 424 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ 425 } else if (HorDcm >= 32) { 426 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */ 427 } else if (HorDcm >= 16) { 428 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ 429 } 430 reg |= format->vfespfr; 431 btwrite(reg, ZR36057_VFESPFR); 432 433 /* display configuration */ 434 reg = (16 << ZR36057_VDCR_MinPix) 435 | (VidWinHt << ZR36057_VDCR_VidWinHt) 436 | (VidWinWid << ZR36057_VDCR_VidWinWid); 437 if (pci_pci_problems & PCIPCI_TRITON) 438 // || zr->revision < 1) // Revision 1 has also Triton support 439 reg &= ~ZR36057_VDCR_Triton; 440 else 441 reg |= ZR36057_VDCR_Triton; 442 btwrite(reg, ZR36057_VDCR); 443 444 /* (Ronald) don't write this if overlay_mask = NULL */ 445 if (zr->overlay_mask) { 446 /* Write overlay clipping mask data, but don't enable overlay clipping */ 447 /* RJ: since this makes only sense on the screen, we use 448 * zr->overlay_settings.width instead of video_width */ 449 450 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 451 reg = virt_to_bus(zr->overlay_mask); 452 btwrite(reg, ZR36057_MMTR); 453 reg = virt_to_bus(zr->overlay_mask + mask_line_size); 454 btwrite(reg, ZR36057_MMBR); 455 reg = 456 mask_line_size - (zr->overlay_settings.width + 457 31) / 32; 458 if (DispMode == 0) 459 reg += mask_line_size; 460 reg <<= ZR36057_OCR_MaskStride; 461 btwrite(reg, ZR36057_OCR); 462 } 463 464 zr36057_adjust_vfe(zr, zr->codec_mode); 465 } 466 467 /* 468 * Switch overlay on or off 469 */ 470 471 void 472 zr36057_overlay (struct zoran *zr, 473 int on) 474 { 475 u32 reg; 476 477 if (on) { 478 /* do the necessary settings ... */ 479 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */ 480 481 zr36057_set_vfe(zr, 482 zr->overlay_settings.width, 483 zr->overlay_settings.height, 484 zr->overlay_settings.format); 485 486 /* Start and length of each line MUST be 4-byte aligned. 487 * This should be already checked before the call to this routine. 488 * All error messages are internal driver checking only! */ 489 490 /* video display top and bottom registers */ 491 reg = (long) zr->vbuf_base + 492 zr->overlay_settings.x * 493 ((zr->overlay_settings.format->depth + 7) / 8) + 494 zr->overlay_settings.y * 495 zr->vbuf_bytesperline; 496 btwrite(reg, ZR36057_VDTR); 497 if (reg & 3) 498 dprintk(1, 499 KERN_ERR 500 "%s: zr36057_overlay() - video_address not aligned\n", 501 ZR_DEVNAME(zr)); 502 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 503 reg += zr->vbuf_bytesperline; 504 btwrite(reg, ZR36057_VDBR); 505 506 /* video stride, status, and frame grab register */ 507 reg = zr->vbuf_bytesperline - 508 zr->overlay_settings.width * 509 ((zr->overlay_settings.format->depth + 7) / 8); 510 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 511 reg += zr->vbuf_bytesperline; 512 if (reg & 3) 513 dprintk(1, 514 KERN_ERR 515 "%s: zr36057_overlay() - video_stride not aligned\n", 516 ZR_DEVNAME(zr)); 517 reg = (reg << ZR36057_VSSFGR_DispStride); 518 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */ 519 btwrite(reg, ZR36057_VSSFGR); 520 521 /* Set overlay clipping */ 522 if (zr->overlay_settings.clipcount > 0) 523 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR); 524 525 /* ... and switch it on */ 526 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR); 527 } else { 528 /* Switch it off */ 529 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 530 } 531 } 532 533 /* 534 * The overlay mask has one bit for each pixel on a scan line, 535 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels. 536 */ 537 538 void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count) 539 { 540 struct zoran *zr = fh->zr; 541 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 542 u32 *mask; 543 int x, y, width, height; 544 unsigned i, j, k; 545 546 /* fill mask with one bits */ 547 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); 548 549 for (i = 0; i < count; ++i) { 550 /* pick up local copy of clip */ 551 x = vp[i].c.left; 552 y = vp[i].c.top; 553 width = vp[i].c.width; 554 height = vp[i].c.height; 555 556 /* trim clips that extend beyond the window */ 557 if (x < 0) { 558 width += x; 559 x = 0; 560 } 561 if (y < 0) { 562 height += y; 563 y = 0; 564 } 565 if (x + width > fh->overlay_settings.width) { 566 width = fh->overlay_settings.width - x; 567 } 568 if (y + height > fh->overlay_settings.height) { 569 height = fh->overlay_settings.height - y; 570 } 571 572 /* ignore degenerate clips */ 573 if (height <= 0) { 574 continue; 575 } 576 if (width <= 0) { 577 continue; 578 } 579 580 /* apply clip for each scan line */ 581 for (j = 0; j < height; ++j) { 582 /* reset bit for each pixel */ 583 /* this can be optimized later if need be */ 584 mask = fh->overlay_mask + (y + j) * mask_line_size; 585 for (k = 0; k < width; ++k) { 586 mask[(x + k) / 32] &= 587 ~((u32) 1 << (x + k) % 32); 588 } 589 } 590 } 591 } 592 593 /* Enable/Disable uncompressed memory grabbing of the 36057 */ 594 595 void 596 zr36057_set_memgrab (struct zoran *zr, 597 int mode) 598 { 599 if (mode) { 600 /* We only check SnapShot and not FrameGrab here. SnapShot==1 601 * means a capture is already in progress, but FrameGrab==1 602 * doesn't necessary mean that. It's more correct to say a 1 603 * to 0 transition indicates a capture completed. If a 604 * capture is pending when capturing is tuned off, FrameGrab 605 * will be stuck at 1 until capturing is turned back on. 606 */ 607 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) 608 dprintk(1, 609 KERN_WARNING 610 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n", 611 ZR_DEVNAME(zr)); 612 613 /* switch on VSync interrupts */ 614 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts 615 btor(zr->card.vsync_int, ZR36057_ICR); // SW 616 617 /* enable SnapShot */ 618 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 619 620 /* Set zr36057 video front end and enable video */ 621 zr36057_set_vfe(zr, zr->v4l_settings.width, 622 zr->v4l_settings.height, 623 zr->v4l_settings.format); 624 625 zr->v4l_memgrab_active = 1; 626 } else { 627 /* switch off VSync interrupts */ 628 btand(~zr->card.vsync_int, ZR36057_ICR); // SW 629 630 zr->v4l_memgrab_active = 0; 631 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 632 633 /* reenable grabbing to screen if it was running */ 634 if (zr->v4l_overlay_active) { 635 zr36057_overlay(zr, 1); 636 } else { 637 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 638 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 639 } 640 } 641 } 642 643 int 644 wait_grab_pending (struct zoran *zr) 645 { 646 unsigned long flags; 647 648 /* wait until all pending grabs are finished */ 649 650 if (!zr->v4l_memgrab_active) 651 return 0; 652 653 wait_event_interruptible(zr->v4l_capq, 654 (zr->v4l_pend_tail == zr->v4l_pend_head)); 655 if (signal_pending(current)) 656 return -ERESTARTSYS; 657 658 spin_lock_irqsave(&zr->spinlock, flags); 659 zr36057_set_memgrab(zr, 0); 660 spin_unlock_irqrestore(&zr->spinlock, flags); 661 662 return 0; 663 } 664 665 /***************************************************************************** 666 * * 667 * Set up the Buz-specific MJPEG part * 668 * * 669 *****************************************************************************/ 670 671 static inline void 672 set_frame (struct zoran *zr, 673 int val) 674 { 675 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val); 676 } 677 678 static void 679 set_videobus_dir (struct zoran *zr, 680 int val) 681 { 682 switch (zr->card.type) { 683 case LML33: 684 case LML33R10: 685 if (lml33dpath == 0) 686 GPIO(zr, 5, val); 687 else 688 GPIO(zr, 5, 1); 689 break; 690 default: 691 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR], 692 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val); 693 break; 694 } 695 } 696 697 static void 698 init_jpeg_queue (struct zoran *zr) 699 { 700 int i; 701 702 /* re-initialize DMA ring stuff */ 703 zr->jpg_que_head = 0; 704 zr->jpg_dma_head = 0; 705 zr->jpg_dma_tail = 0; 706 zr->jpg_que_tail = 0; 707 zr->jpg_seq_num = 0; 708 zr->JPEG_error = 0; 709 zr->num_errors = 0; 710 zr->jpg_err_seq = 0; 711 zr->jpg_err_shift = 0; 712 zr->jpg_queued_num = 0; 713 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 714 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 715 } 716 for (i = 0; i < BUZ_NUM_STAT_COM; i++) { 717 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ 718 } 719 } 720 721 static void 722 zr36057_set_jpg (struct zoran *zr, 723 enum zoran_codec_mode mode) 724 { 725 struct tvnorm *tvn; 726 u32 reg; 727 728 tvn = zr->timing; 729 730 /* assert P_Reset, disable code transfer, deassert Active */ 731 btwrite(0, ZR36057_JPC); 732 733 /* MJPEG compression mode */ 734 switch (mode) { 735 736 case BUZ_MODE_MOTION_COMPRESS: 737 default: 738 reg = ZR36057_JMC_MJPGCmpMode; 739 break; 740 741 case BUZ_MODE_MOTION_DECOMPRESS: 742 reg = ZR36057_JMC_MJPGExpMode; 743 reg |= ZR36057_JMC_SyncMstr; 744 /* RJ: The following is experimental - improves the output to screen */ 745 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM 746 break; 747 748 case BUZ_MODE_STILL_COMPRESS: 749 reg = ZR36057_JMC_JPGCmpMode; 750 break; 751 752 case BUZ_MODE_STILL_DECOMPRESS: 753 reg = ZR36057_JMC_JPGExpMode; 754 break; 755 756 } 757 reg |= ZR36057_JMC_JPG; 758 if (zr->jpg_settings.field_per_buff == 1) 759 reg |= ZR36057_JMC_Fld_per_buff; 760 btwrite(reg, ZR36057_JMC); 761 762 /* vertical */ 763 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR); 764 reg = (6 << ZR36057_VSP_VsyncSize) | 765 (tvn->Ht << ZR36057_VSP_FrmTot); 766 btwrite(reg, ZR36057_VSP); 767 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) | 768 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY); 769 btwrite(reg, ZR36057_FVAP); 770 771 /* horizontal */ 772 if (zr->card.vfe_pol.hsync_pol) 773 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 774 else 775 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 776 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) | 777 (tvn->Wt << ZR36057_HSP_LineTot); 778 btwrite(reg, ZR36057_HSP); 779 reg = ((zr->jpg_settings.img_x + 780 tvn->HStart + 4) << ZR36057_FHAP_NAX) | 781 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX); 782 btwrite(reg, ZR36057_FHAP); 783 784 /* field process parameters */ 785 if (zr->jpg_settings.odd_even) 786 reg = ZR36057_FPP_Odd_Even; 787 else 788 reg = 0; 789 790 btwrite(reg, ZR36057_FPP); 791 792 /* Set proper VCLK Polarity, else colors will be wrong during playback */ 793 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR); 794 795 /* code base address */ 796 reg = virt_to_bus(zr->stat_com); 797 btwrite(reg, ZR36057_JCBA); 798 799 /* FIFO threshold (FIFO is 160. double words) */ 800 /* NOTE: decimal values here */ 801 switch (mode) { 802 803 case BUZ_MODE_STILL_COMPRESS: 804 case BUZ_MODE_MOTION_COMPRESS: 805 if (zr->card.type != BUZ) 806 reg = 140; 807 else 808 reg = 60; 809 break; 810 811 case BUZ_MODE_STILL_DECOMPRESS: 812 case BUZ_MODE_MOTION_DECOMPRESS: 813 reg = 20; 814 break; 815 816 default: 817 reg = 80; 818 break; 819 820 } 821 btwrite(reg, ZR36057_JCFT); 822 zr36057_adjust_vfe(zr, mode); 823 824 } 825 826 void 827 print_interrupts (struct zoran *zr) 828 { 829 int res, noerr = 0; 830 831 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr)); 832 if ((res = zr->field_counter) < -1 || res > 1) { 833 printk(" FD:%d", res); 834 } 835 if ((res = zr->intr_counter_GIRQ1) != 0) { 836 printk(" GIRQ1:%d", res); 837 noerr++; 838 } 839 if ((res = zr->intr_counter_GIRQ0) != 0) { 840 printk(" GIRQ0:%d", res); 841 noerr++; 842 } 843 if ((res = zr->intr_counter_CodRepIRQ) != 0) { 844 printk(" CodRepIRQ:%d", res); 845 noerr++; 846 } 847 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) { 848 printk(" JPEGRepIRQ:%d", res); 849 noerr++; 850 } 851 if (zr->JPEG_max_missed) { 852 printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed, 853 zr->JPEG_min_missed); 854 } 855 if (zr->END_event_missed) { 856 printk(" ENDs missed: %d", zr->END_event_missed); 857 } 858 //if (zr->jpg_queued_num) { 859 printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail, 860 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head); 861 //} 862 if (!noerr) { 863 printk(": no interrupts detected."); 864 } 865 printk("\n"); 866 } 867 868 void 869 clear_interrupt_counters (struct zoran *zr) 870 { 871 zr->intr_counter_GIRQ1 = 0; 872 zr->intr_counter_GIRQ0 = 0; 873 zr->intr_counter_CodRepIRQ = 0; 874 zr->intr_counter_JPEGRepIRQ = 0; 875 zr->field_counter = 0; 876 zr->IRQ1_in = 0; 877 zr->IRQ1_out = 0; 878 zr->JPEG_in = 0; 879 zr->JPEG_out = 0; 880 zr->JPEG_0 = 0; 881 zr->JPEG_1 = 0; 882 zr->END_event_missed = 0; 883 zr->JPEG_missed = 0; 884 zr->JPEG_max_missed = 0; 885 zr->JPEG_min_missed = 0x7fffffff; 886 } 887 888 static u32 889 count_reset_interrupt (struct zoran *zr) 890 { 891 u32 isr; 892 893 if ((isr = btread(ZR36057_ISR) & 0x78000000)) { 894 if (isr & ZR36057_ISR_GIRQ1) { 895 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR); 896 zr->intr_counter_GIRQ1++; 897 } 898 if (isr & ZR36057_ISR_GIRQ0) { 899 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR); 900 zr->intr_counter_GIRQ0++; 901 } 902 if (isr & ZR36057_ISR_CodRepIRQ) { 903 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR); 904 zr->intr_counter_CodRepIRQ++; 905 } 906 if (isr & ZR36057_ISR_JPEGRepIRQ) { 907 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR); 908 zr->intr_counter_JPEGRepIRQ++; 909 } 910 } 911 return isr; 912 } 913 914 void 915 jpeg_start (struct zoran *zr) 916 { 917 int reg; 918 919 zr->frame_num = 0; 920 921 /* deassert P_reset, disable code transfer, deassert Active */ 922 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC); 923 /* stop flushing the internal code buffer */ 924 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 925 /* enable code transfer */ 926 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC); 927 928 /* clear IRQs */ 929 btwrite(IRQ_MASK, ZR36057_ISR); 930 /* enable the JPEG IRQs */ 931 btwrite(zr->card.jpeg_int | 932 ZR36057_ICR_JPEGRepIRQ | 933 ZR36057_ICR_IntPinEn, 934 ZR36057_ICR); 935 936 set_frame(zr, 0); // \FRAME 937 938 /* set the JPEG codec guest ID */ 939 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) | 940 (0 << ZR36057_JCGI_JPEGuestReg); 941 btwrite(reg, ZR36057_JCGI); 942 943 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 && 944 zr->card.video_codec == CODEC_TYPE_ZR36050) { 945 /* Enable processing on the ZR36016 */ 946 if (zr->vfe) 947 zr36016_write(zr->vfe, 0, 1); 948 949 /* load the address of the GO register in the ZR36050 latch */ 950 post_office_write(zr, 0, 0, 0); 951 } 952 953 /* assert Active */ 954 btor(ZR36057_JPC_Active, ZR36057_JPC); 955 956 /* enable the Go generation */ 957 btor(ZR36057_JMC_Go_en, ZR36057_JMC); 958 udelay(30); 959 960 set_frame(zr, 1); // /FRAME 961 962 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr)); 963 } 964 965 void 966 zr36057_enable_jpg (struct zoran *zr, 967 enum zoran_codec_mode mode) 968 { 969 struct vfe_settings cap; 970 int field_size = 971 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff; 972 973 zr->codec_mode = mode; 974 975 cap.x = zr->jpg_settings.img_x; 976 cap.y = zr->jpg_settings.img_y; 977 cap.width = zr->jpg_settings.img_width; 978 cap.height = zr->jpg_settings.img_height; 979 cap.decimation = 980 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8); 981 cap.quality = zr->jpg_settings.jpg_comp.quality; 982 983 switch (mode) { 984 985 case BUZ_MODE_MOTION_COMPRESS: { 986 struct jpeg_app_marker app; 987 struct jpeg_com_marker com; 988 989 /* In motion compress mode, the decoder output must be enabled, and 990 * the video bus direction set to input. 991 */ 992 set_videobus_dir(zr, 0); 993 decoder_call(zr, video, s_stream, 1); 994 encoder_call(zr, video, s_routing, 0, 0, 0); 995 996 /* Take the JPEG codec and the VFE out of sleep */ 997 jpeg_codec_sleep(zr, 0); 998 999 /* set JPEG app/com marker */ 1000 app.appn = zr->jpg_settings.jpg_comp.APPn; 1001 app.len = zr->jpg_settings.jpg_comp.APP_len; 1002 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60); 1003 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA, 1004 sizeof(struct jpeg_app_marker), &app); 1005 1006 com.len = zr->jpg_settings.jpg_comp.COM_len; 1007 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60); 1008 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA, 1009 sizeof(struct jpeg_com_marker), &com); 1010 1011 /* Setup the JPEG codec */ 1012 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE, 1013 sizeof(int), &field_size); 1014 zr->codec->set_video(zr->codec, zr->timing, &cap, 1015 &zr->card.vfe_pol); 1016 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION); 1017 1018 /* Setup the VFE */ 1019 if (zr->vfe) { 1020 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE, 1021 sizeof(int), &field_size); 1022 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1023 &zr->card.vfe_pol); 1024 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION); 1025 } 1026 1027 init_jpeg_queue(zr); 1028 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1029 1030 clear_interrupt_counters(zr); 1031 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n", 1032 ZR_DEVNAME(zr)); 1033 break; 1034 } 1035 1036 case BUZ_MODE_MOTION_DECOMPRESS: 1037 /* In motion decompression mode, the decoder output must be disabled, and 1038 * the video bus direction set to output. 1039 */ 1040 decoder_call(zr, video, s_stream, 0); 1041 set_videobus_dir(zr, 1); 1042 encoder_call(zr, video, s_routing, 1, 0, 0); 1043 1044 /* Take the JPEG codec and the VFE out of sleep */ 1045 jpeg_codec_sleep(zr, 0); 1046 /* Setup the VFE */ 1047 if (zr->vfe) { 1048 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1049 &zr->card.vfe_pol); 1050 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION); 1051 } 1052 /* Setup the JPEG codec */ 1053 zr->codec->set_video(zr->codec, zr->timing, &cap, 1054 &zr->card.vfe_pol); 1055 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION); 1056 1057 init_jpeg_queue(zr); 1058 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1059 1060 clear_interrupt_counters(zr); 1061 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n", 1062 ZR_DEVNAME(zr)); 1063 break; 1064 1065 case BUZ_MODE_IDLE: 1066 default: 1067 /* shut down processing */ 1068 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ), 1069 ZR36057_ICR); 1070 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ, 1071 ZR36057_ISR); 1072 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en 1073 1074 msleep(50); 1075 1076 set_videobus_dir(zr, 0); 1077 set_frame(zr, 1); // /FRAME 1078 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush 1079 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active 1080 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC); 1081 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC); 1082 jpeg_codec_reset(zr); 1083 jpeg_codec_sleep(zr, 1); 1084 zr36057_adjust_vfe(zr, mode); 1085 1086 decoder_call(zr, video, s_stream, 1); 1087 encoder_call(zr, video, s_routing, 0, 0, 0); 1088 1089 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr)); 1090 break; 1091 1092 } 1093 } 1094 1095 /* when this is called the spinlock must be held */ 1096 void 1097 zoran_feed_stat_com (struct zoran *zr) 1098 { 1099 /* move frames from pending queue to DMA */ 1100 1101 int frame, i, max_stat_com; 1102 1103 max_stat_com = 1104 (zr->jpg_settings.TmpDcm == 1105 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1); 1106 1107 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com && 1108 zr->jpg_dma_head < zr->jpg_que_head) { 1109 1110 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME]; 1111 if (zr->jpg_settings.TmpDcm == 1) { 1112 /* fill 1 stat_com entry */ 1113 i = (zr->jpg_dma_head - 1114 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1115 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1116 break; 1117 zr->stat_com[i] = 1118 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1119 } else { 1120 /* fill 2 stat_com entries */ 1121 i = ((zr->jpg_dma_head - 1122 zr->jpg_err_shift) & 1) * 2; 1123 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1124 break; 1125 zr->stat_com[i] = 1126 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1127 zr->stat_com[i + 1] = 1128 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1129 } 1130 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA; 1131 zr->jpg_dma_head++; 1132 1133 } 1134 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) 1135 zr->jpg_queued_num++; 1136 } 1137 1138 /* when this is called the spinlock must be held */ 1139 static void 1140 zoran_reap_stat_com (struct zoran *zr) 1141 { 1142 /* move frames from DMA queue to done queue */ 1143 1144 int i; 1145 u32 stat_com; 1146 unsigned int seq; 1147 unsigned int dif; 1148 struct zoran_buffer *buffer; 1149 int frame; 1150 1151 /* In motion decompress we don't have a hardware frame counter, 1152 * we just count the interrupts here */ 1153 1154 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1155 zr->jpg_seq_num++; 1156 } 1157 while (zr->jpg_dma_tail < zr->jpg_dma_head) { 1158 if (zr->jpg_settings.TmpDcm == 1) 1159 i = (zr->jpg_dma_tail - 1160 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1161 else 1162 i = ((zr->jpg_dma_tail - 1163 zr->jpg_err_shift) & 1) * 2 + 1; 1164 1165 stat_com = le32_to_cpu(zr->stat_com[i]); 1166 1167 if ((stat_com & 1) == 0) { 1168 return; 1169 } 1170 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1171 buffer = &zr->jpg_buffers.buffer[frame]; 1172 v4l2_get_timestamp(&buffer->bs.timestamp); 1173 1174 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1175 buffer->bs.length = (stat_com & 0x7fffff) >> 1; 1176 1177 /* update sequence number with the help of the counter in stat_com */ 1178 1179 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff; 1180 dif = (seq - zr->jpg_seq_num) & 0xff; 1181 zr->jpg_seq_num += dif; 1182 } else { 1183 buffer->bs.length = 0; 1184 } 1185 buffer->bs.seq = 1186 zr->jpg_settings.TmpDcm == 1187 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num; 1188 buffer->state = BUZ_STATE_DONE; 1189 1190 zr->jpg_dma_tail++; 1191 } 1192 } 1193 1194 static void zoran_restart(struct zoran *zr) 1195 { 1196 /* Now the stat_comm buffer is ready for restart */ 1197 unsigned int status = 0; 1198 int mode; 1199 1200 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1201 decoder_call(zr, video, g_input_status, &status); 1202 mode = CODEC_DO_COMPRESSION; 1203 } else { 1204 status = V4L2_IN_ST_NO_SIGNAL; 1205 mode = CODEC_DO_EXPANSION; 1206 } 1207 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1208 !(status & V4L2_IN_ST_NO_SIGNAL)) { 1209 /********** RESTART code *************/ 1210 jpeg_codec_reset(zr); 1211 zr->codec->set_mode(zr->codec, mode); 1212 zr36057_set_jpg(zr, zr->codec_mode); 1213 jpeg_start(zr); 1214 1215 if (zr->num_errors <= 8) 1216 dprintk(2, KERN_INFO "%s: Restart\n", 1217 ZR_DEVNAME(zr)); 1218 1219 zr->JPEG_missed = 0; 1220 zr->JPEG_error = 2; 1221 /********** End RESTART code ***********/ 1222 } 1223 } 1224 1225 static void 1226 error_handler (struct zoran *zr, 1227 u32 astat, 1228 u32 stat) 1229 { 1230 int i; 1231 1232 /* This is JPEG error handling part */ 1233 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS && 1234 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) { 1235 return; 1236 } 1237 1238 if ((stat & 1) == 0 && 1239 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS && 1240 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) { 1241 /* No free buffers... */ 1242 zoran_reap_stat_com(zr); 1243 zoran_feed_stat_com(zr); 1244 wake_up_interruptible(&zr->jpg_capq); 1245 zr->JPEG_missed = 0; 1246 return; 1247 } 1248 1249 if (zr->JPEG_error == 1) { 1250 zoran_restart(zr); 1251 return; 1252 } 1253 1254 /* 1255 * First entry: error just happened during normal operation 1256 * 1257 * In BUZ_MODE_MOTION_COMPRESS: 1258 * 1259 * Possible glitch in TV signal. In this case we should 1260 * stop the codec and wait for good quality signal before 1261 * restarting it to avoid further problems 1262 * 1263 * In BUZ_MODE_MOTION_DECOMPRESS: 1264 * 1265 * Bad JPEG frame: we have to mark it as processed (codec crashed 1266 * and was not able to do it itself), and to remove it from queue. 1267 */ 1268 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 1269 udelay(1); 1270 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8; 1271 btwrite(0, ZR36057_JPC); 1272 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 1273 jpeg_codec_reset(zr); 1274 jpeg_codec_sleep(zr, 1); 1275 zr->JPEG_error = 1; 1276 zr->num_errors++; 1277 1278 /* Report error */ 1279 if (zr36067_debug > 1 && zr->num_errors <= 8) { 1280 long frame; 1281 int j; 1282 1283 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1284 printk(KERN_ERR 1285 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ", 1286 ZR_DEVNAME(zr), stat, zr->last_isr, 1287 zr->jpg_que_tail, zr->jpg_dma_tail, 1288 zr->jpg_dma_head, zr->jpg_que_head, 1289 zr->jpg_seq_num, frame); 1290 printk(KERN_INFO "stat_com frames:"); 1291 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1292 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 1293 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus) 1294 printk(KERN_CONT "% d->%d", j, i); 1295 } 1296 } 1297 printk(KERN_CONT "\n"); 1298 } 1299 /* Find an entry in stat_com and rotate contents */ 1300 if (zr->jpg_settings.TmpDcm == 1) 1301 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1302 else 1303 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1304 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1305 /* Mimic zr36067 operation */ 1306 zr->stat_com[i] |= cpu_to_le32(1); 1307 if (zr->jpg_settings.TmpDcm != 1) 1308 zr->stat_com[i + 1] |= cpu_to_le32(1); 1309 /* Refill */ 1310 zoran_reap_stat_com(zr); 1311 zoran_feed_stat_com(zr); 1312 wake_up_interruptible(&zr->jpg_capq); 1313 /* Find an entry in stat_com again after refill */ 1314 if (zr->jpg_settings.TmpDcm == 1) 1315 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1316 else 1317 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1318 } 1319 if (i) { 1320 /* Rotate stat_comm entries to make current entry first */ 1321 int j; 1322 __le32 bus_addr[BUZ_NUM_STAT_COM]; 1323 1324 /* Here we are copying the stat_com array, which 1325 * is already in little endian format, so 1326 * no endian conversions here 1327 */ 1328 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr)); 1329 1330 for (j = 0; j < BUZ_NUM_STAT_COM; j++) 1331 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM]; 1332 1333 zr->jpg_err_shift += i; 1334 zr->jpg_err_shift &= BUZ_MASK_STAT_COM; 1335 } 1336 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) 1337 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */ 1338 zoran_restart(zr); 1339 } 1340 1341 irqreturn_t 1342 zoran_irq (int irq, 1343 void *dev_id) 1344 { 1345 u32 stat, astat; 1346 int count; 1347 struct zoran *zr; 1348 unsigned long flags; 1349 1350 zr = dev_id; 1351 count = 0; 1352 1353 if (zr->testing) { 1354 /* Testing interrupts */ 1355 spin_lock_irqsave(&zr->spinlock, flags); 1356 while ((stat = count_reset_interrupt(zr))) { 1357 if (count++ > 100) { 1358 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1359 dprintk(1, 1360 KERN_ERR 1361 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n", 1362 ZR_DEVNAME(zr), stat); 1363 wake_up_interruptible(&zr->test_q); 1364 } 1365 } 1366 zr->last_isr = stat; 1367 spin_unlock_irqrestore(&zr->spinlock, flags); 1368 return IRQ_HANDLED; 1369 } 1370 1371 spin_lock_irqsave(&zr->spinlock, flags); 1372 while (1) { 1373 /* get/clear interrupt status bits */ 1374 stat = count_reset_interrupt(zr); 1375 astat = stat & IRQ_MASK; 1376 if (!astat) { 1377 break; 1378 } 1379 dprintk(4, 1380 KERN_DEBUG 1381 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n", 1382 astat, btread(ZR36057_ICR)); 1383 if (astat & zr->card.vsync_int) { // SW 1384 1385 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1386 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1387 /* count missed interrupts */ 1388 zr->JPEG_missed++; 1389 } 1390 //post_office_read(zr,1,0); 1391 /* Interrupts may still happen when 1392 * zr->v4l_memgrab_active is switched off. 1393 * We simply ignore them */ 1394 1395 if (zr->v4l_memgrab_active) { 1396 /* A lot more checks should be here ... */ 1397 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0) 1398 dprintk(1, 1399 KERN_WARNING 1400 "%s: BuzIRQ with SnapShot off ???\n", 1401 ZR_DEVNAME(zr)); 1402 1403 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) { 1404 /* There is a grab on a frame going on, check if it has finished */ 1405 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) { 1406 /* it is finished, notify the user */ 1407 1408 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE; 1409 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq; 1410 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp); 1411 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 1412 zr->v4l_pend_tail++; 1413 } 1414 } 1415 1416 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE) 1417 wake_up_interruptible(&zr->v4l_capq); 1418 1419 /* Check if there is another grab queued */ 1420 1421 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE && 1422 zr->v4l_pend_tail != zr->v4l_pend_head) { 1423 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; 1424 u32 reg; 1425 1426 zr->v4l_grab_frame = frame; 1427 1428 /* Set zr36057 video front end and enable video */ 1429 1430 /* Buffer address */ 1431 1432 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus; 1433 btwrite(reg, ZR36057_VDTR); 1434 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1435 reg += zr->v4l_settings.bytesperline; 1436 btwrite(reg, ZR36057_VDBR); 1437 1438 /* video stride, status, and frame grab register */ 1439 reg = 0; 1440 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1441 reg += zr->v4l_settings.bytesperline; 1442 reg = (reg << ZR36057_VSSFGR_DispStride); 1443 reg |= ZR36057_VSSFGR_VidOvf; 1444 reg |= ZR36057_VSSFGR_SnapShot; 1445 reg |= ZR36057_VSSFGR_FrameGrab; 1446 btwrite(reg, ZR36057_VSSFGR); 1447 1448 btor(ZR36057_VDCR_VidEn, 1449 ZR36057_VDCR); 1450 } 1451 } 1452 1453 /* even if we don't grab, we do want to increment 1454 * the sequence counter to see lost frames */ 1455 zr->v4l_grab_seq++; 1456 } 1457 #if (IRQ_MASK & ZR36057_ISR_CodRepIRQ) 1458 if (astat & ZR36057_ISR_CodRepIRQ) { 1459 zr->intr_counter_CodRepIRQ++; 1460 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", 1461 ZR_DEVNAME(zr))); 1462 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR); 1463 } 1464 #endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */ 1465 1466 #if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) 1467 if ((astat & ZR36057_ISR_JPEGRepIRQ) && 1468 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1469 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) { 1470 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) { 1471 char sv[BUZ_NUM_STAT_COM + 1]; 1472 int i; 1473 1474 printk(KERN_INFO 1475 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n", 1476 ZR_DEVNAME(zr), stat, 1477 zr->jpg_settings.odd_even, 1478 zr->jpg_settings.field_per_buff, 1479 zr->JPEG_missed); 1480 1481 for (i = 0; i < BUZ_NUM_STAT_COM; i++) 1482 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0'; 1483 sv[BUZ_NUM_STAT_COM] = 0; 1484 printk(KERN_INFO 1485 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n", 1486 ZR_DEVNAME(zr), sv, 1487 zr->jpg_que_tail, 1488 zr->jpg_dma_tail, 1489 zr->jpg_dma_head, 1490 zr->jpg_que_head); 1491 } else { 1492 /* Get statistics */ 1493 if (zr->JPEG_missed > zr->JPEG_max_missed) 1494 zr->JPEG_max_missed = zr->JPEG_missed; 1495 if (zr->JPEG_missed < zr->JPEG_min_missed) 1496 zr->JPEG_min_missed = zr->JPEG_missed; 1497 } 1498 1499 if (zr36067_debug > 2 && zr->frame_num < 6) { 1500 int i; 1501 1502 printk(KERN_INFO "%s: seq=%ld stat_com:", 1503 ZR_DEVNAME(zr), zr->jpg_seq_num); 1504 for (i = 0; i < 4; i++) { 1505 printk(KERN_CONT " %08x", 1506 le32_to_cpu(zr->stat_com[i])); 1507 } 1508 printk(KERN_CONT "\n"); 1509 } 1510 zr->frame_num++; 1511 zr->JPEG_missed = 0; 1512 zr->JPEG_error = 0; 1513 zoran_reap_stat_com(zr); 1514 zoran_feed_stat_com(zr); 1515 wake_up_interruptible(&zr->jpg_capq); 1516 } 1517 #endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */ 1518 1519 /* DATERR, too many fields missed, error processing */ 1520 if ((astat & zr->card.jpeg_int) || 1521 zr->JPEG_missed > 25 || 1522 zr->JPEG_error == 1 || 1523 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) && 1524 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) { 1525 error_handler(zr, astat, stat); 1526 } 1527 1528 count++; 1529 if (count > 10) { 1530 dprintk(2, KERN_WARNING "%s: irq loop %d\n", 1531 ZR_DEVNAME(zr), count); 1532 if (count > 20) { 1533 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1534 dprintk(2, 1535 KERN_ERR 1536 "%s: IRQ lockup, cleared int mask\n", 1537 ZR_DEVNAME(zr)); 1538 break; 1539 } 1540 } 1541 zr->last_isr = stat; 1542 } 1543 spin_unlock_irqrestore(&zr->spinlock, flags); 1544 1545 return IRQ_HANDLED; 1546 } 1547 1548 void 1549 zoran_set_pci_master (struct zoran *zr, 1550 int set_master) 1551 { 1552 if (set_master) { 1553 pci_set_master(zr->pci_dev); 1554 } else { 1555 u16 command; 1556 1557 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command); 1558 command &= ~PCI_COMMAND_MASTER; 1559 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command); 1560 } 1561 } 1562 1563 void 1564 zoran_init_hardware (struct zoran *zr) 1565 { 1566 /* Enable bus-mastering */ 1567 zoran_set_pci_master(zr, 1); 1568 1569 /* Initialize the board */ 1570 if (zr->card.init) { 1571 zr->card.init(zr); 1572 } 1573 1574 decoder_call(zr, core, init, 0); 1575 decoder_call(zr, core, s_std, zr->norm); 1576 decoder_call(zr, video, s_routing, 1577 zr->card.input[zr->input].muxsel, 0, 0); 1578 1579 encoder_call(zr, core, init, 0); 1580 encoder_call(zr, video, s_std_output, zr->norm); 1581 encoder_call(zr, video, s_routing, 0, 0, 0); 1582 1583 /* toggle JPEG codec sleep to sync PLL */ 1584 jpeg_codec_sleep(zr, 1); 1585 jpeg_codec_sleep(zr, 0); 1586 1587 /* set individual interrupt enables (without GIRQ1) 1588 * but don't global enable until zoran_open() */ 1589 1590 //btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR); // SW 1591 // It looks like using only JPEGRepIRQEn is not always reliable, 1592 // may be when JPEG codec crashes it won't generate IRQ? So, 1593 /*CP*/ // btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM WHY ? LP 1594 zr36057_init_vfe(zr); 1595 1596 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1597 1598 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts 1599 } 1600 1601 void 1602 zr36057_restart (struct zoran *zr) 1603 { 1604 btwrite(0, ZR36057_SPGPPCR); 1605 mdelay(1); 1606 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR); 1607 mdelay(1); 1608 1609 /* assert P_Reset */ 1610 btwrite(0, ZR36057_JPC); 1611 /* set up GPIO direction - all output */ 1612 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR); 1613 1614 /* set up GPIO pins and guest bus timing */ 1615 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1); 1616 } 1617 1618 /* 1619 * initialize video front end 1620 */ 1621 1622 static void 1623 zr36057_init_vfe (struct zoran *zr) 1624 { 1625 u32 reg; 1626 1627 reg = btread(ZR36057_VFESPFR); 1628 reg |= ZR36057_VFESPFR_LittleEndian; 1629 reg &= ~ZR36057_VFESPFR_VCLKPol; 1630 reg |= ZR36057_VFESPFR_ExtFl; 1631 reg |= ZR36057_VFESPFR_TopField; 1632 btwrite(reg, ZR36057_VFESPFR); 1633 reg = btread(ZR36057_VDCR); 1634 if (pci_pci_problems & PCIPCI_TRITON) 1635 // || zr->revision < 1) // Revision 1 has also Triton support 1636 reg &= ~ZR36057_VDCR_Triton; 1637 else 1638 reg |= ZR36057_VDCR_Triton; 1639 btwrite(reg, ZR36057_VDCR); 1640 } 1641