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 26 #include <linux/types.h> 27 #include <linux/kernel.h> 28 #include <linux/module.h> 29 #include <linux/vmalloc.h> 30 #include <linux/ktime.h> 31 32 #include <linux/interrupt.h> 33 #include <linux/proc_fs.h> 34 #include <linux/i2c.h> 35 #include <linux/i2c-algo-bit.h> 36 #include <linux/videodev2.h> 37 #include <media/v4l2-common.h> 38 #include <linux/spinlock.h> 39 #include <linux/sem.h> 40 41 #include <linux/pci.h> 42 #include <linux/delay.h> 43 #include <linux/wait.h> 44 45 #include <asm/byteorder.h> 46 #include <asm/io.h> 47 48 #include "videocodec.h" 49 #include "zoran.h" 50 #include "zoran_device.h" 51 #include "zoran_card.h" 52 53 #define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \ 54 ZR36057_ISR_GIRQ1 | \ 55 ZR36057_ISR_JPEGRepIRQ ) 56 57 static bool lml33dpath; /* default = 0 58 * 1 will use digital path in capture 59 * mode instead of analog. It can be 60 * used for picture adjustments using 61 * tool like xawtv while watching image 62 * on TV monitor connected to the output. 63 * However, due to absence of 75 Ohm 64 * load on Bt819 input, there will be 65 * some image imperfections */ 66 67 module_param(lml33dpath, bool, 0644); 68 MODULE_PARM_DESC(lml33dpath, 69 "Use digital path capture mode (on LML33 cards)"); 70 71 static void 72 zr36057_init_vfe (struct zoran *zr); 73 74 /* 75 * General Purpose I/O and Guest bus access 76 */ 77 78 /* 79 * This is a bit tricky. When a board lacks a GPIO function, the corresponding 80 * GPIO bit number in the card_info structure is set to 0. 81 */ 82 83 void 84 GPIO (struct zoran *zr, 85 int bit, 86 unsigned int value) 87 { 88 u32 reg; 89 u32 mask; 90 91 /* Make sure the bit number is legal 92 * A bit number of -1 (lacking) gives a mask of 0, 93 * making it harmless */ 94 mask = (1 << (24 + bit)) & 0xff000000; 95 reg = btread(ZR36057_GPPGCR1) & ~mask; 96 if (value) { 97 reg |= mask; 98 } 99 btwrite(reg, ZR36057_GPPGCR1); 100 udelay(1); 101 } 102 103 /* 104 * Wait til post office is no longer busy 105 */ 106 107 int 108 post_office_wait (struct zoran *zr) 109 { 110 u32 por; 111 112 // while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) { 113 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) { 114 /* wait for something to happen */ 115 } 116 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) { 117 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */ 118 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr), 119 por); 120 return -1; 121 } 122 123 return 0; 124 } 125 126 int 127 post_office_write (struct zoran *zr, 128 unsigned int guest, 129 unsigned int reg, 130 unsigned int value) 131 { 132 u32 por; 133 134 por = 135 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | 136 ((reg & 7) << 16) | (value & 0xFF); 137 btwrite(por, ZR36057_POR); 138 139 return post_office_wait(zr); 140 } 141 142 int 143 post_office_read (struct zoran *zr, 144 unsigned int guest, 145 unsigned int reg) 146 { 147 u32 por; 148 149 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16); 150 btwrite(por, ZR36057_POR); 151 if (post_office_wait(zr) < 0) { 152 return -1; 153 } 154 155 return btread(ZR36057_POR) & 0xFF; 156 } 157 158 /* 159 * detect guests 160 */ 161 162 static void 163 dump_guests (struct zoran *zr) 164 { 165 if (zr36067_debug > 2) { 166 int i, guest[8]; 167 168 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 169 guest[i] = post_office_read(zr, i, 0); 170 } 171 172 printk(KERN_INFO "%s: Guests: %*ph\n", 173 ZR_DEVNAME(zr), 8, guest); 174 } 175 } 176 177 void 178 detect_guest_activity (struct zoran *zr) 179 { 180 int timeout, i, j, res, guest[8], guest0[8], change[8][3]; 181 ktime_t t0, t1; 182 183 dump_guests(zr); 184 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n", 185 ZR_DEVNAME(zr)); 186 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 187 guest0[i] = guest[i] = post_office_read(zr, i, 0); 188 } 189 190 timeout = 0; 191 j = 0; 192 t0 = ktime_get(); 193 while (timeout < 10000) { 194 udelay(10); 195 timeout++; 196 for (i = 1; (i < 8) && (j < 8); i++) { 197 res = post_office_read(zr, i, 0); 198 if (res != guest[i]) { 199 t1 = ktime_get(); 200 change[j][0] = ktime_to_us(ktime_sub(t1, t0)); 201 t0 = t1; 202 change[j][1] = i; 203 change[j][2] = res; 204 j++; 205 guest[i] = res; 206 } 207 } 208 if (j >= 8) 209 break; 210 } 211 212 printk(KERN_INFO "%s: Guests: %*ph\n", ZR_DEVNAME(zr), 8, guest0); 213 214 if (j == 0) { 215 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr)); 216 return; 217 } 218 for (i = 0; i < j; i++) { 219 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr), 220 change[i][0], change[i][1], change[i][2]); 221 } 222 } 223 224 /* 225 * JPEG Codec access 226 */ 227 228 void 229 jpeg_codec_sleep (struct zoran *zr, 230 int sleep) 231 { 232 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep); 233 if (!sleep) { 234 dprintk(3, 235 KERN_DEBUG 236 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n", 237 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 238 udelay(500); 239 } else { 240 dprintk(3, 241 KERN_DEBUG 242 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n", 243 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 244 udelay(2); 245 } 246 } 247 248 int 249 jpeg_codec_reset (struct zoran *zr) 250 { 251 /* Take the codec out of sleep */ 252 jpeg_codec_sleep(zr, 0); 253 254 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) { 255 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0, 256 0); 257 udelay(2); 258 } else { 259 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0); 260 udelay(2); 261 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1); 262 udelay(2); 263 } 264 265 return 0; 266 } 267 268 /* 269 * Set the registers for the size we have specified. Don't bother 270 * trying to understand this without the ZR36057 manual in front of 271 * you [AC]. 272 * 273 * PS: The manual is free for download in .pdf format from 274 * www.zoran.com - nicely done those folks. 275 */ 276 277 static void 278 zr36057_adjust_vfe (struct zoran *zr, 279 enum zoran_codec_mode mode) 280 { 281 u32 reg; 282 283 switch (mode) { 284 case BUZ_MODE_MOTION_DECOMPRESS: 285 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 286 reg = btread(ZR36057_VFEHCR); 287 if ((reg & (1 << 10)) && zr->card.type != LML33R10) { 288 reg += ((1 << 10) | 1); 289 } 290 btwrite(reg, ZR36057_VFEHCR); 291 break; 292 case BUZ_MODE_MOTION_COMPRESS: 293 case BUZ_MODE_IDLE: 294 default: 295 if ((zr->norm & V4L2_STD_NTSC) || 296 (zr->card.type == LML33R10 && 297 (zr->norm & V4L2_STD_PAL))) 298 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 299 else 300 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 301 reg = btread(ZR36057_VFEHCR); 302 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) { 303 reg -= ((1 << 10) | 1); 304 } 305 btwrite(reg, ZR36057_VFEHCR); 306 break; 307 } 308 } 309 310 /* 311 * set geometry 312 */ 313 314 static void 315 zr36057_set_vfe (struct zoran *zr, 316 int video_width, 317 int video_height, 318 const struct zoran_format *format) 319 { 320 struct tvnorm *tvn; 321 unsigned HStart, HEnd, VStart, VEnd; 322 unsigned DispMode; 323 unsigned VidWinWid, VidWinHt; 324 unsigned hcrop1, hcrop2, vcrop1, vcrop2; 325 unsigned Wa, We, Ha, He; 326 unsigned X, Y, HorDcm, VerDcm; 327 u32 reg; 328 unsigned mask_line_size; 329 330 tvn = zr->timing; 331 332 Wa = tvn->Wa; 333 Ha = tvn->Ha; 334 335 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n", 336 ZR_DEVNAME(zr), video_width, video_height); 337 338 if (video_width < BUZ_MIN_WIDTH || 339 video_height < BUZ_MIN_HEIGHT || 340 video_width > Wa || video_height > Ha) { 341 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", 342 ZR_DEVNAME(zr), video_width, video_height); 343 return; 344 } 345 346 /**** zr36057 ****/ 347 348 /* horizontal */ 349 VidWinWid = video_width; 350 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa); 351 We = (VidWinWid * 64) / X; 352 HorDcm = 64 - X; 353 hcrop1 = 2 * ((tvn->Wa - We) / 4); 354 hcrop2 = tvn->Wa - We - hcrop1; 355 HStart = tvn->HStart ? tvn->HStart : 1; 356 /* (Ronald) Original comment: 357 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+" 358 * this is false. It inverses chroma values on the LML33R10 (so Cr 359 * suddenly is shown as Cb and reverse, really cool effect if you 360 * want to see blue faces, not useful otherwise). So don't use |1. 361 * However, the DC10 has '0' as HStart, but does need |1, so we 362 * use a dirty check... 363 */ 364 HEnd = HStart + tvn->Wa - 1; 365 HStart += hcrop1; 366 HEnd -= hcrop2; 367 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart) 368 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd); 369 if (zr->card.vfe_pol.hsync_pol) 370 reg |= ZR36057_VFEHCR_HSPol; 371 btwrite(reg, ZR36057_VFEHCR); 372 373 /* Vertical */ 374 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2); 375 VidWinHt = DispMode ? video_height : video_height / 2; 376 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha); 377 He = (VidWinHt * 64) / Y; 378 VerDcm = 64 - Y; 379 vcrop1 = (tvn->Ha / 2 - He) / 2; 380 vcrop2 = tvn->Ha / 2 - He - vcrop1; 381 VStart = tvn->VStart; 382 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP 383 VStart += vcrop1; 384 VEnd -= vcrop2; 385 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart) 386 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd); 387 if (zr->card.vfe_pol.vsync_pol) 388 reg |= ZR36057_VFEVCR_VSPol; 389 btwrite(reg, ZR36057_VFEVCR); 390 391 /* scaler and pixel format */ 392 reg = 0; 393 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); 394 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); 395 reg |= (DispMode << ZR36057_VFESPFR_DispMode); 396 /* RJ: I don't know, why the following has to be the opposite 397 * of the corresponding ZR36060 setting, but only this way 398 * we get the correct colors when uncompressing to the screen */ 399 //reg |= ZR36057_VFESPFR_VCLKPol; /**/ 400 /* RJ: Don't know if that is needed for NTSC also */ 401 if (!(zr->norm & V4L2_STD_NTSC)) 402 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang 403 reg |= ZR36057_VFESPFR_TopField; 404 if (HorDcm >= 48) { 405 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ 406 } else if (HorDcm >= 32) { 407 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */ 408 } else if (HorDcm >= 16) { 409 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ 410 } 411 reg |= format->vfespfr; 412 btwrite(reg, ZR36057_VFESPFR); 413 414 /* display configuration */ 415 reg = (16 << ZR36057_VDCR_MinPix) 416 | (VidWinHt << ZR36057_VDCR_VidWinHt) 417 | (VidWinWid << ZR36057_VDCR_VidWinWid); 418 if (pci_pci_problems & PCIPCI_TRITON) 419 // || zr->revision < 1) // Revision 1 has also Triton support 420 reg &= ~ZR36057_VDCR_Triton; 421 else 422 reg |= ZR36057_VDCR_Triton; 423 btwrite(reg, ZR36057_VDCR); 424 425 /* (Ronald) don't write this if overlay_mask = NULL */ 426 if (zr->overlay_mask) { 427 /* Write overlay clipping mask data, but don't enable overlay clipping */ 428 /* RJ: since this makes only sense on the screen, we use 429 * zr->overlay_settings.width instead of video_width */ 430 431 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 432 reg = virt_to_bus(zr->overlay_mask); 433 btwrite(reg, ZR36057_MMTR); 434 reg = virt_to_bus(zr->overlay_mask + mask_line_size); 435 btwrite(reg, ZR36057_MMBR); 436 reg = 437 mask_line_size - (zr->overlay_settings.width + 438 31) / 32; 439 if (DispMode == 0) 440 reg += mask_line_size; 441 reg <<= ZR36057_OCR_MaskStride; 442 btwrite(reg, ZR36057_OCR); 443 } 444 445 zr36057_adjust_vfe(zr, zr->codec_mode); 446 } 447 448 /* 449 * Switch overlay on or off 450 */ 451 452 void 453 zr36057_overlay (struct zoran *zr, 454 int on) 455 { 456 u32 reg; 457 458 if (on) { 459 /* do the necessary settings ... */ 460 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */ 461 462 zr36057_set_vfe(zr, 463 zr->overlay_settings.width, 464 zr->overlay_settings.height, 465 zr->overlay_settings.format); 466 467 /* Start and length of each line MUST be 4-byte aligned. 468 * This should be already checked before the call to this routine. 469 * All error messages are internal driver checking only! */ 470 471 /* video display top and bottom registers */ 472 reg = (long) zr->vbuf_base + 473 zr->overlay_settings.x * 474 ((zr->overlay_settings.format->depth + 7) / 8) + 475 zr->overlay_settings.y * 476 zr->vbuf_bytesperline; 477 btwrite(reg, ZR36057_VDTR); 478 if (reg & 3) 479 dprintk(1, 480 KERN_ERR 481 "%s: zr36057_overlay() - video_address not aligned\n", 482 ZR_DEVNAME(zr)); 483 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 484 reg += zr->vbuf_bytesperline; 485 btwrite(reg, ZR36057_VDBR); 486 487 /* video stride, status, and frame grab register */ 488 reg = zr->vbuf_bytesperline - 489 zr->overlay_settings.width * 490 ((zr->overlay_settings.format->depth + 7) / 8); 491 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 492 reg += zr->vbuf_bytesperline; 493 if (reg & 3) 494 dprintk(1, 495 KERN_ERR 496 "%s: zr36057_overlay() - video_stride not aligned\n", 497 ZR_DEVNAME(zr)); 498 reg = (reg << ZR36057_VSSFGR_DispStride); 499 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */ 500 btwrite(reg, ZR36057_VSSFGR); 501 502 /* Set overlay clipping */ 503 if (zr->overlay_settings.clipcount > 0) 504 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR); 505 506 /* ... and switch it on */ 507 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR); 508 } else { 509 /* Switch it off */ 510 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 511 } 512 } 513 514 /* 515 * The overlay mask has one bit for each pixel on a scan line, 516 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels. 517 */ 518 519 void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count) 520 { 521 struct zoran *zr = fh->zr; 522 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 523 u32 *mask; 524 int x, y, width, height; 525 unsigned i, j, k; 526 527 /* fill mask with one bits */ 528 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); 529 530 for (i = 0; i < count; ++i) { 531 /* pick up local copy of clip */ 532 x = vp[i].c.left; 533 y = vp[i].c.top; 534 width = vp[i].c.width; 535 height = vp[i].c.height; 536 537 /* trim clips that extend beyond the window */ 538 if (x < 0) { 539 width += x; 540 x = 0; 541 } 542 if (y < 0) { 543 height += y; 544 y = 0; 545 } 546 if (x + width > fh->overlay_settings.width) { 547 width = fh->overlay_settings.width - x; 548 } 549 if (y + height > fh->overlay_settings.height) { 550 height = fh->overlay_settings.height - y; 551 } 552 553 /* ignore degenerate clips */ 554 if (height <= 0) { 555 continue; 556 } 557 if (width <= 0) { 558 continue; 559 } 560 561 /* apply clip for each scan line */ 562 for (j = 0; j < height; ++j) { 563 /* reset bit for each pixel */ 564 /* this can be optimized later if need be */ 565 mask = fh->overlay_mask + (y + j) * mask_line_size; 566 for (k = 0; k < width; ++k) { 567 mask[(x + k) / 32] &= 568 ~((u32) 1 << (x + k) % 32); 569 } 570 } 571 } 572 } 573 574 /* Enable/Disable uncompressed memory grabbing of the 36057 */ 575 576 void 577 zr36057_set_memgrab (struct zoran *zr, 578 int mode) 579 { 580 if (mode) { 581 /* We only check SnapShot and not FrameGrab here. SnapShot==1 582 * means a capture is already in progress, but FrameGrab==1 583 * doesn't necessary mean that. It's more correct to say a 1 584 * to 0 transition indicates a capture completed. If a 585 * capture is pending when capturing is tuned off, FrameGrab 586 * will be stuck at 1 until capturing is turned back on. 587 */ 588 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) 589 dprintk(1, 590 KERN_WARNING 591 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n", 592 ZR_DEVNAME(zr)); 593 594 /* switch on VSync interrupts */ 595 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts 596 btor(zr->card.vsync_int, ZR36057_ICR); // SW 597 598 /* enable SnapShot */ 599 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 600 601 /* Set zr36057 video front end and enable video */ 602 zr36057_set_vfe(zr, zr->v4l_settings.width, 603 zr->v4l_settings.height, 604 zr->v4l_settings.format); 605 606 zr->v4l_memgrab_active = 1; 607 } else { 608 /* switch off VSync interrupts */ 609 btand(~zr->card.vsync_int, ZR36057_ICR); // SW 610 611 zr->v4l_memgrab_active = 0; 612 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 613 614 /* reenable grabbing to screen if it was running */ 615 if (zr->v4l_overlay_active) { 616 zr36057_overlay(zr, 1); 617 } else { 618 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 619 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 620 } 621 } 622 } 623 624 int 625 wait_grab_pending (struct zoran *zr) 626 { 627 unsigned long flags; 628 629 /* wait until all pending grabs are finished */ 630 631 if (!zr->v4l_memgrab_active) 632 return 0; 633 634 wait_event_interruptible(zr->v4l_capq, 635 (zr->v4l_pend_tail == zr->v4l_pend_head)); 636 if (signal_pending(current)) 637 return -ERESTARTSYS; 638 639 spin_lock_irqsave(&zr->spinlock, flags); 640 zr36057_set_memgrab(zr, 0); 641 spin_unlock_irqrestore(&zr->spinlock, flags); 642 643 return 0; 644 } 645 646 /***************************************************************************** 647 * * 648 * Set up the Buz-specific MJPEG part * 649 * * 650 *****************************************************************************/ 651 652 static inline void 653 set_frame (struct zoran *zr, 654 int val) 655 { 656 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val); 657 } 658 659 static void 660 set_videobus_dir (struct zoran *zr, 661 int val) 662 { 663 switch (zr->card.type) { 664 case LML33: 665 case LML33R10: 666 if (!lml33dpath) 667 GPIO(zr, 5, val); 668 else 669 GPIO(zr, 5, 1); 670 break; 671 default: 672 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR], 673 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val); 674 break; 675 } 676 } 677 678 static void 679 init_jpeg_queue (struct zoran *zr) 680 { 681 int i; 682 683 /* re-initialize DMA ring stuff */ 684 zr->jpg_que_head = 0; 685 zr->jpg_dma_head = 0; 686 zr->jpg_dma_tail = 0; 687 zr->jpg_que_tail = 0; 688 zr->jpg_seq_num = 0; 689 zr->JPEG_error = 0; 690 zr->num_errors = 0; 691 zr->jpg_err_seq = 0; 692 zr->jpg_err_shift = 0; 693 zr->jpg_queued_num = 0; 694 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 695 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 696 } 697 for (i = 0; i < BUZ_NUM_STAT_COM; i++) { 698 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ 699 } 700 } 701 702 static void 703 zr36057_set_jpg (struct zoran *zr, 704 enum zoran_codec_mode mode) 705 { 706 struct tvnorm *tvn; 707 u32 reg; 708 709 tvn = zr->timing; 710 711 /* assert P_Reset, disable code transfer, deassert Active */ 712 btwrite(0, ZR36057_JPC); 713 714 /* MJPEG compression mode */ 715 switch (mode) { 716 717 case BUZ_MODE_MOTION_COMPRESS: 718 default: 719 reg = ZR36057_JMC_MJPGCmpMode; 720 break; 721 722 case BUZ_MODE_MOTION_DECOMPRESS: 723 reg = ZR36057_JMC_MJPGExpMode; 724 reg |= ZR36057_JMC_SyncMstr; 725 /* RJ: The following is experimental - improves the output to screen */ 726 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM 727 break; 728 729 case BUZ_MODE_STILL_COMPRESS: 730 reg = ZR36057_JMC_JPGCmpMode; 731 break; 732 733 case BUZ_MODE_STILL_DECOMPRESS: 734 reg = ZR36057_JMC_JPGExpMode; 735 break; 736 737 } 738 reg |= ZR36057_JMC_JPG; 739 if (zr->jpg_settings.field_per_buff == 1) 740 reg |= ZR36057_JMC_Fld_per_buff; 741 btwrite(reg, ZR36057_JMC); 742 743 /* vertical */ 744 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR); 745 reg = (6 << ZR36057_VSP_VsyncSize) | 746 (tvn->Ht << ZR36057_VSP_FrmTot); 747 btwrite(reg, ZR36057_VSP); 748 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) | 749 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY); 750 btwrite(reg, ZR36057_FVAP); 751 752 /* horizontal */ 753 if (zr->card.vfe_pol.hsync_pol) 754 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 755 else 756 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 757 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) | 758 (tvn->Wt << ZR36057_HSP_LineTot); 759 btwrite(reg, ZR36057_HSP); 760 reg = ((zr->jpg_settings.img_x + 761 tvn->HStart + 4) << ZR36057_FHAP_NAX) | 762 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX); 763 btwrite(reg, ZR36057_FHAP); 764 765 /* field process parameters */ 766 if (zr->jpg_settings.odd_even) 767 reg = ZR36057_FPP_Odd_Even; 768 else 769 reg = 0; 770 771 btwrite(reg, ZR36057_FPP); 772 773 /* Set proper VCLK Polarity, else colors will be wrong during playback */ 774 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR); 775 776 /* code base address */ 777 reg = virt_to_bus(zr->stat_com); 778 btwrite(reg, ZR36057_JCBA); 779 780 /* FIFO threshold (FIFO is 160. double words) */ 781 /* NOTE: decimal values here */ 782 switch (mode) { 783 784 case BUZ_MODE_STILL_COMPRESS: 785 case BUZ_MODE_MOTION_COMPRESS: 786 if (zr->card.type != BUZ) 787 reg = 140; 788 else 789 reg = 60; 790 break; 791 792 case BUZ_MODE_STILL_DECOMPRESS: 793 case BUZ_MODE_MOTION_DECOMPRESS: 794 reg = 20; 795 break; 796 797 default: 798 reg = 80; 799 break; 800 801 } 802 btwrite(reg, ZR36057_JCFT); 803 zr36057_adjust_vfe(zr, mode); 804 805 } 806 807 void 808 print_interrupts (struct zoran *zr) 809 { 810 int res, noerr = 0; 811 812 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr)); 813 if ((res = zr->field_counter) < -1 || res > 1) { 814 printk(KERN_CONT " FD:%d", res); 815 } 816 if ((res = zr->intr_counter_GIRQ1) != 0) { 817 printk(KERN_CONT " GIRQ1:%d", res); 818 noerr++; 819 } 820 if ((res = zr->intr_counter_GIRQ0) != 0) { 821 printk(KERN_CONT " GIRQ0:%d", res); 822 noerr++; 823 } 824 if ((res = zr->intr_counter_CodRepIRQ) != 0) { 825 printk(KERN_CONT " CodRepIRQ:%d", res); 826 noerr++; 827 } 828 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) { 829 printk(KERN_CONT " JPEGRepIRQ:%d", res); 830 noerr++; 831 } 832 if (zr->JPEG_max_missed) { 833 printk(KERN_CONT " JPEG delays: max=%d min=%d", zr->JPEG_max_missed, 834 zr->JPEG_min_missed); 835 } 836 if (zr->END_event_missed) { 837 printk(KERN_CONT " ENDs missed: %d", zr->END_event_missed); 838 } 839 //if (zr->jpg_queued_num) { 840 printk(KERN_CONT " queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail, 841 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head); 842 //} 843 if (!noerr) { 844 printk(KERN_CONT ": no interrupts detected."); 845 } 846 printk(KERN_CONT "\n"); 847 } 848 849 void 850 clear_interrupt_counters (struct zoran *zr) 851 { 852 zr->intr_counter_GIRQ1 = 0; 853 zr->intr_counter_GIRQ0 = 0; 854 zr->intr_counter_CodRepIRQ = 0; 855 zr->intr_counter_JPEGRepIRQ = 0; 856 zr->field_counter = 0; 857 zr->IRQ1_in = 0; 858 zr->IRQ1_out = 0; 859 zr->JPEG_in = 0; 860 zr->JPEG_out = 0; 861 zr->JPEG_0 = 0; 862 zr->JPEG_1 = 0; 863 zr->END_event_missed = 0; 864 zr->JPEG_missed = 0; 865 zr->JPEG_max_missed = 0; 866 zr->JPEG_min_missed = 0x7fffffff; 867 } 868 869 static u32 870 count_reset_interrupt (struct zoran *zr) 871 { 872 u32 isr; 873 874 if ((isr = btread(ZR36057_ISR) & 0x78000000)) { 875 if (isr & ZR36057_ISR_GIRQ1) { 876 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR); 877 zr->intr_counter_GIRQ1++; 878 } 879 if (isr & ZR36057_ISR_GIRQ0) { 880 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR); 881 zr->intr_counter_GIRQ0++; 882 } 883 if (isr & ZR36057_ISR_CodRepIRQ) { 884 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR); 885 zr->intr_counter_CodRepIRQ++; 886 } 887 if (isr & ZR36057_ISR_JPEGRepIRQ) { 888 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR); 889 zr->intr_counter_JPEGRepIRQ++; 890 } 891 } 892 return isr; 893 } 894 895 void 896 jpeg_start (struct zoran *zr) 897 { 898 int reg; 899 900 zr->frame_num = 0; 901 902 /* deassert P_reset, disable code transfer, deassert Active */ 903 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC); 904 /* stop flushing the internal code buffer */ 905 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 906 /* enable code transfer */ 907 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC); 908 909 /* clear IRQs */ 910 btwrite(IRQ_MASK, ZR36057_ISR); 911 /* enable the JPEG IRQs */ 912 btwrite(zr->card.jpeg_int | 913 ZR36057_ICR_JPEGRepIRQ | 914 ZR36057_ICR_IntPinEn, 915 ZR36057_ICR); 916 917 set_frame(zr, 0); // \FRAME 918 919 /* set the JPEG codec guest ID */ 920 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) | 921 (0 << ZR36057_JCGI_JPEGuestReg); 922 btwrite(reg, ZR36057_JCGI); 923 924 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 && 925 zr->card.video_codec == CODEC_TYPE_ZR36050) { 926 /* Enable processing on the ZR36016 */ 927 if (zr->vfe) 928 zr36016_write(zr->vfe, 0, 1); 929 930 /* load the address of the GO register in the ZR36050 latch */ 931 post_office_write(zr, 0, 0, 0); 932 } 933 934 /* assert Active */ 935 btor(ZR36057_JPC_Active, ZR36057_JPC); 936 937 /* enable the Go generation */ 938 btor(ZR36057_JMC_Go_en, ZR36057_JMC); 939 udelay(30); 940 941 set_frame(zr, 1); // /FRAME 942 943 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr)); 944 } 945 946 void 947 zr36057_enable_jpg (struct zoran *zr, 948 enum zoran_codec_mode mode) 949 { 950 struct vfe_settings cap; 951 int field_size = 952 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff; 953 954 zr->codec_mode = mode; 955 956 cap.x = zr->jpg_settings.img_x; 957 cap.y = zr->jpg_settings.img_y; 958 cap.width = zr->jpg_settings.img_width; 959 cap.height = zr->jpg_settings.img_height; 960 cap.decimation = 961 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8); 962 cap.quality = zr->jpg_settings.jpg_comp.quality; 963 964 switch (mode) { 965 966 case BUZ_MODE_MOTION_COMPRESS: { 967 struct jpeg_app_marker app; 968 struct jpeg_com_marker com; 969 970 /* In motion compress mode, the decoder output must be enabled, and 971 * the video bus direction set to input. 972 */ 973 set_videobus_dir(zr, 0); 974 decoder_call(zr, video, s_stream, 1); 975 encoder_call(zr, video, s_routing, 0, 0, 0); 976 977 /* Take the JPEG codec and the VFE out of sleep */ 978 jpeg_codec_sleep(zr, 0); 979 980 /* set JPEG app/com marker */ 981 app.appn = zr->jpg_settings.jpg_comp.APPn; 982 app.len = zr->jpg_settings.jpg_comp.APP_len; 983 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60); 984 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA, 985 sizeof(struct jpeg_app_marker), &app); 986 987 com.len = zr->jpg_settings.jpg_comp.COM_len; 988 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60); 989 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA, 990 sizeof(struct jpeg_com_marker), &com); 991 992 /* Setup the JPEG codec */ 993 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE, 994 sizeof(int), &field_size); 995 zr->codec->set_video(zr->codec, zr->timing, &cap, 996 &zr->card.vfe_pol); 997 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION); 998 999 /* Setup the VFE */ 1000 if (zr->vfe) { 1001 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE, 1002 sizeof(int), &field_size); 1003 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1004 &zr->card.vfe_pol); 1005 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION); 1006 } 1007 1008 init_jpeg_queue(zr); 1009 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1010 1011 clear_interrupt_counters(zr); 1012 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n", 1013 ZR_DEVNAME(zr)); 1014 break; 1015 } 1016 1017 case BUZ_MODE_MOTION_DECOMPRESS: 1018 /* In motion decompression mode, the decoder output must be disabled, and 1019 * the video bus direction set to output. 1020 */ 1021 decoder_call(zr, video, s_stream, 0); 1022 set_videobus_dir(zr, 1); 1023 encoder_call(zr, video, s_routing, 1, 0, 0); 1024 1025 /* Take the JPEG codec and the VFE out of sleep */ 1026 jpeg_codec_sleep(zr, 0); 1027 /* Setup the VFE */ 1028 if (zr->vfe) { 1029 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1030 &zr->card.vfe_pol); 1031 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION); 1032 } 1033 /* Setup the JPEG codec */ 1034 zr->codec->set_video(zr->codec, zr->timing, &cap, 1035 &zr->card.vfe_pol); 1036 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION); 1037 1038 init_jpeg_queue(zr); 1039 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1040 1041 clear_interrupt_counters(zr); 1042 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n", 1043 ZR_DEVNAME(zr)); 1044 break; 1045 1046 case BUZ_MODE_IDLE: 1047 default: 1048 /* shut down processing */ 1049 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ), 1050 ZR36057_ICR); 1051 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ, 1052 ZR36057_ISR); 1053 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en 1054 1055 msleep(50); 1056 1057 set_videobus_dir(zr, 0); 1058 set_frame(zr, 1); // /FRAME 1059 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush 1060 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active 1061 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC); 1062 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC); 1063 jpeg_codec_reset(zr); 1064 jpeg_codec_sleep(zr, 1); 1065 zr36057_adjust_vfe(zr, mode); 1066 1067 decoder_call(zr, video, s_stream, 1); 1068 encoder_call(zr, video, s_routing, 0, 0, 0); 1069 1070 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr)); 1071 break; 1072 1073 } 1074 } 1075 1076 /* when this is called the spinlock must be held */ 1077 void 1078 zoran_feed_stat_com (struct zoran *zr) 1079 { 1080 /* move frames from pending queue to DMA */ 1081 1082 int frame, i, max_stat_com; 1083 1084 max_stat_com = 1085 (zr->jpg_settings.TmpDcm == 1086 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1); 1087 1088 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com && 1089 zr->jpg_dma_head < zr->jpg_que_head) { 1090 1091 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME]; 1092 if (zr->jpg_settings.TmpDcm == 1) { 1093 /* fill 1 stat_com entry */ 1094 i = (zr->jpg_dma_head - 1095 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1096 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1097 break; 1098 zr->stat_com[i] = 1099 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1100 } else { 1101 /* fill 2 stat_com entries */ 1102 i = ((zr->jpg_dma_head - 1103 zr->jpg_err_shift) & 1) * 2; 1104 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1105 break; 1106 zr->stat_com[i] = 1107 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1108 zr->stat_com[i + 1] = 1109 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1110 } 1111 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA; 1112 zr->jpg_dma_head++; 1113 1114 } 1115 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) 1116 zr->jpg_queued_num++; 1117 } 1118 1119 /* when this is called the spinlock must be held */ 1120 static void 1121 zoran_reap_stat_com (struct zoran *zr) 1122 { 1123 /* move frames from DMA queue to done queue */ 1124 1125 int i; 1126 u32 stat_com; 1127 unsigned int seq; 1128 unsigned int dif; 1129 struct zoran_buffer *buffer; 1130 int frame; 1131 1132 /* In motion decompress we don't have a hardware frame counter, 1133 * we just count the interrupts here */ 1134 1135 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1136 zr->jpg_seq_num++; 1137 } 1138 while (zr->jpg_dma_tail < zr->jpg_dma_head) { 1139 if (zr->jpg_settings.TmpDcm == 1) 1140 i = (zr->jpg_dma_tail - 1141 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1142 else 1143 i = ((zr->jpg_dma_tail - 1144 zr->jpg_err_shift) & 1) * 2 + 1; 1145 1146 stat_com = le32_to_cpu(zr->stat_com[i]); 1147 1148 if ((stat_com & 1) == 0) { 1149 return; 1150 } 1151 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1152 buffer = &zr->jpg_buffers.buffer[frame]; 1153 v4l2_get_timestamp(&buffer->bs.timestamp); 1154 1155 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1156 buffer->bs.length = (stat_com & 0x7fffff) >> 1; 1157 1158 /* update sequence number with the help of the counter in stat_com */ 1159 1160 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff; 1161 dif = (seq - zr->jpg_seq_num) & 0xff; 1162 zr->jpg_seq_num += dif; 1163 } else { 1164 buffer->bs.length = 0; 1165 } 1166 buffer->bs.seq = 1167 zr->jpg_settings.TmpDcm == 1168 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num; 1169 buffer->state = BUZ_STATE_DONE; 1170 1171 zr->jpg_dma_tail++; 1172 } 1173 } 1174 1175 static void zoran_restart(struct zoran *zr) 1176 { 1177 /* Now the stat_comm buffer is ready for restart */ 1178 unsigned int status = 0; 1179 int mode; 1180 1181 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1182 decoder_call(zr, video, g_input_status, &status); 1183 mode = CODEC_DO_COMPRESSION; 1184 } else { 1185 status = V4L2_IN_ST_NO_SIGNAL; 1186 mode = CODEC_DO_EXPANSION; 1187 } 1188 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1189 !(status & V4L2_IN_ST_NO_SIGNAL)) { 1190 /********** RESTART code *************/ 1191 jpeg_codec_reset(zr); 1192 zr->codec->set_mode(zr->codec, mode); 1193 zr36057_set_jpg(zr, zr->codec_mode); 1194 jpeg_start(zr); 1195 1196 if (zr->num_errors <= 8) 1197 dprintk(2, KERN_INFO "%s: Restart\n", 1198 ZR_DEVNAME(zr)); 1199 1200 zr->JPEG_missed = 0; 1201 zr->JPEG_error = 2; 1202 /********** End RESTART code ***********/ 1203 } 1204 } 1205 1206 static void 1207 error_handler (struct zoran *zr, 1208 u32 astat, 1209 u32 stat) 1210 { 1211 int i; 1212 1213 /* This is JPEG error handling part */ 1214 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS && 1215 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) { 1216 return; 1217 } 1218 1219 if ((stat & 1) == 0 && 1220 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS && 1221 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) { 1222 /* No free buffers... */ 1223 zoran_reap_stat_com(zr); 1224 zoran_feed_stat_com(zr); 1225 wake_up_interruptible(&zr->jpg_capq); 1226 zr->JPEG_missed = 0; 1227 return; 1228 } 1229 1230 if (zr->JPEG_error == 1) { 1231 zoran_restart(zr); 1232 return; 1233 } 1234 1235 /* 1236 * First entry: error just happened during normal operation 1237 * 1238 * In BUZ_MODE_MOTION_COMPRESS: 1239 * 1240 * Possible glitch in TV signal. In this case we should 1241 * stop the codec and wait for good quality signal before 1242 * restarting it to avoid further problems 1243 * 1244 * In BUZ_MODE_MOTION_DECOMPRESS: 1245 * 1246 * Bad JPEG frame: we have to mark it as processed (codec crashed 1247 * and was not able to do it itself), and to remove it from queue. 1248 */ 1249 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 1250 udelay(1); 1251 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8; 1252 btwrite(0, ZR36057_JPC); 1253 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 1254 jpeg_codec_reset(zr); 1255 jpeg_codec_sleep(zr, 1); 1256 zr->JPEG_error = 1; 1257 zr->num_errors++; 1258 1259 /* Report error */ 1260 if (zr36067_debug > 1 && zr->num_errors <= 8) { 1261 long frame; 1262 int j; 1263 1264 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1265 printk(KERN_ERR 1266 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ", 1267 ZR_DEVNAME(zr), stat, zr->last_isr, 1268 zr->jpg_que_tail, zr->jpg_dma_tail, 1269 zr->jpg_dma_head, zr->jpg_que_head, 1270 zr->jpg_seq_num, frame); 1271 printk(KERN_INFO "stat_com frames:"); 1272 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1273 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 1274 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus) 1275 printk(KERN_CONT "% d->%d", j, i); 1276 } 1277 } 1278 printk(KERN_CONT "\n"); 1279 } 1280 /* Find an entry in stat_com and rotate contents */ 1281 if (zr->jpg_settings.TmpDcm == 1) 1282 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1283 else 1284 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1285 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1286 /* Mimic zr36067 operation */ 1287 zr->stat_com[i] |= cpu_to_le32(1); 1288 if (zr->jpg_settings.TmpDcm != 1) 1289 zr->stat_com[i + 1] |= cpu_to_le32(1); 1290 /* Refill */ 1291 zoran_reap_stat_com(zr); 1292 zoran_feed_stat_com(zr); 1293 wake_up_interruptible(&zr->jpg_capq); 1294 /* Find an entry in stat_com again after refill */ 1295 if (zr->jpg_settings.TmpDcm == 1) 1296 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1297 else 1298 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1299 } 1300 if (i) { 1301 /* Rotate stat_comm entries to make current entry first */ 1302 int j; 1303 __le32 bus_addr[BUZ_NUM_STAT_COM]; 1304 1305 /* Here we are copying the stat_com array, which 1306 * is already in little endian format, so 1307 * no endian conversions here 1308 */ 1309 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr)); 1310 1311 for (j = 0; j < BUZ_NUM_STAT_COM; j++) 1312 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM]; 1313 1314 zr->jpg_err_shift += i; 1315 zr->jpg_err_shift &= BUZ_MASK_STAT_COM; 1316 } 1317 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) 1318 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */ 1319 zoran_restart(zr); 1320 } 1321 1322 irqreturn_t 1323 zoran_irq (int irq, 1324 void *dev_id) 1325 { 1326 u32 stat, astat; 1327 int count; 1328 struct zoran *zr; 1329 unsigned long flags; 1330 1331 zr = dev_id; 1332 count = 0; 1333 1334 if (zr->testing) { 1335 /* Testing interrupts */ 1336 spin_lock_irqsave(&zr->spinlock, flags); 1337 while ((stat = count_reset_interrupt(zr))) { 1338 if (count++ > 100) { 1339 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1340 dprintk(1, 1341 KERN_ERR 1342 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n", 1343 ZR_DEVNAME(zr), stat); 1344 wake_up_interruptible(&zr->test_q); 1345 } 1346 } 1347 zr->last_isr = stat; 1348 spin_unlock_irqrestore(&zr->spinlock, flags); 1349 return IRQ_HANDLED; 1350 } 1351 1352 spin_lock_irqsave(&zr->spinlock, flags); 1353 while (1) { 1354 /* get/clear interrupt status bits */ 1355 stat = count_reset_interrupt(zr); 1356 astat = stat & IRQ_MASK; 1357 if (!astat) { 1358 break; 1359 } 1360 dprintk(4, 1361 KERN_DEBUG 1362 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n", 1363 astat, btread(ZR36057_ICR)); 1364 if (astat & zr->card.vsync_int) { // SW 1365 1366 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1367 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1368 /* count missed interrupts */ 1369 zr->JPEG_missed++; 1370 } 1371 //post_office_read(zr,1,0); 1372 /* Interrupts may still happen when 1373 * zr->v4l_memgrab_active is switched off. 1374 * We simply ignore them */ 1375 1376 if (zr->v4l_memgrab_active) { 1377 /* A lot more checks should be here ... */ 1378 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0) 1379 dprintk(1, 1380 KERN_WARNING 1381 "%s: BuzIRQ with SnapShot off ???\n", 1382 ZR_DEVNAME(zr)); 1383 1384 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) { 1385 /* There is a grab on a frame going on, check if it has finished */ 1386 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) { 1387 /* it is finished, notify the user */ 1388 1389 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE; 1390 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq; 1391 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp); 1392 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 1393 zr->v4l_pend_tail++; 1394 } 1395 } 1396 1397 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE) 1398 wake_up_interruptible(&zr->v4l_capq); 1399 1400 /* Check if there is another grab queued */ 1401 1402 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE && 1403 zr->v4l_pend_tail != zr->v4l_pend_head) { 1404 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; 1405 u32 reg; 1406 1407 zr->v4l_grab_frame = frame; 1408 1409 /* Set zr36057 video front end and enable video */ 1410 1411 /* Buffer address */ 1412 1413 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus; 1414 btwrite(reg, ZR36057_VDTR); 1415 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1416 reg += zr->v4l_settings.bytesperline; 1417 btwrite(reg, ZR36057_VDBR); 1418 1419 /* video stride, status, and frame grab register */ 1420 reg = 0; 1421 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1422 reg += zr->v4l_settings.bytesperline; 1423 reg = (reg << ZR36057_VSSFGR_DispStride); 1424 reg |= ZR36057_VSSFGR_VidOvf; 1425 reg |= ZR36057_VSSFGR_SnapShot; 1426 reg |= ZR36057_VSSFGR_FrameGrab; 1427 btwrite(reg, ZR36057_VSSFGR); 1428 1429 btor(ZR36057_VDCR_VidEn, 1430 ZR36057_VDCR); 1431 } 1432 } 1433 1434 /* even if we don't grab, we do want to increment 1435 * the sequence counter to see lost frames */ 1436 zr->v4l_grab_seq++; 1437 } 1438 #if (IRQ_MASK & ZR36057_ISR_CodRepIRQ) 1439 if (astat & ZR36057_ISR_CodRepIRQ) { 1440 zr->intr_counter_CodRepIRQ++; 1441 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", 1442 ZR_DEVNAME(zr))); 1443 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR); 1444 } 1445 #endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */ 1446 1447 #if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) 1448 if ((astat & ZR36057_ISR_JPEGRepIRQ) && 1449 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1450 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) { 1451 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) { 1452 char sv[BUZ_NUM_STAT_COM + 1]; 1453 int i; 1454 1455 printk(KERN_INFO 1456 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n", 1457 ZR_DEVNAME(zr), stat, 1458 zr->jpg_settings.odd_even, 1459 zr->jpg_settings.field_per_buff, 1460 zr->JPEG_missed); 1461 1462 for (i = 0; i < BUZ_NUM_STAT_COM; i++) 1463 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0'; 1464 sv[BUZ_NUM_STAT_COM] = 0; 1465 printk(KERN_INFO 1466 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n", 1467 ZR_DEVNAME(zr), sv, 1468 zr->jpg_que_tail, 1469 zr->jpg_dma_tail, 1470 zr->jpg_dma_head, 1471 zr->jpg_que_head); 1472 } else { 1473 /* Get statistics */ 1474 if (zr->JPEG_missed > zr->JPEG_max_missed) 1475 zr->JPEG_max_missed = zr->JPEG_missed; 1476 if (zr->JPEG_missed < zr->JPEG_min_missed) 1477 zr->JPEG_min_missed = zr->JPEG_missed; 1478 } 1479 1480 if (zr36067_debug > 2 && zr->frame_num < 6) { 1481 int i; 1482 1483 printk(KERN_INFO "%s: seq=%ld stat_com:", 1484 ZR_DEVNAME(zr), zr->jpg_seq_num); 1485 for (i = 0; i < 4; i++) { 1486 printk(KERN_CONT " %08x", 1487 le32_to_cpu(zr->stat_com[i])); 1488 } 1489 printk(KERN_CONT "\n"); 1490 } 1491 zr->frame_num++; 1492 zr->JPEG_missed = 0; 1493 zr->JPEG_error = 0; 1494 zoran_reap_stat_com(zr); 1495 zoran_feed_stat_com(zr); 1496 wake_up_interruptible(&zr->jpg_capq); 1497 } 1498 #endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */ 1499 1500 /* DATERR, too many fields missed, error processing */ 1501 if ((astat & zr->card.jpeg_int) || 1502 zr->JPEG_missed > 25 || 1503 zr->JPEG_error == 1 || 1504 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) && 1505 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) { 1506 error_handler(zr, astat, stat); 1507 } 1508 1509 count++; 1510 if (count > 10) { 1511 dprintk(2, KERN_WARNING "%s: irq loop %d\n", 1512 ZR_DEVNAME(zr), count); 1513 if (count > 20) { 1514 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1515 dprintk(2, 1516 KERN_ERR 1517 "%s: IRQ lockup, cleared int mask\n", 1518 ZR_DEVNAME(zr)); 1519 break; 1520 } 1521 } 1522 zr->last_isr = stat; 1523 } 1524 spin_unlock_irqrestore(&zr->spinlock, flags); 1525 1526 return IRQ_HANDLED; 1527 } 1528 1529 void 1530 zoran_set_pci_master (struct zoran *zr, 1531 int set_master) 1532 { 1533 if (set_master) { 1534 pci_set_master(zr->pci_dev); 1535 } else { 1536 u16 command; 1537 1538 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command); 1539 command &= ~PCI_COMMAND_MASTER; 1540 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command); 1541 } 1542 } 1543 1544 void 1545 zoran_init_hardware (struct zoran *zr) 1546 { 1547 /* Enable bus-mastering */ 1548 zoran_set_pci_master(zr, 1); 1549 1550 /* Initialize the board */ 1551 if (zr->card.init) { 1552 zr->card.init(zr); 1553 } 1554 1555 decoder_call(zr, core, init, 0); 1556 decoder_call(zr, video, s_std, zr->norm); 1557 decoder_call(zr, video, s_routing, 1558 zr->card.input[zr->input].muxsel, 0, 0); 1559 1560 encoder_call(zr, core, init, 0); 1561 encoder_call(zr, video, s_std_output, zr->norm); 1562 encoder_call(zr, video, s_routing, 0, 0, 0); 1563 1564 /* toggle JPEG codec sleep to sync PLL */ 1565 jpeg_codec_sleep(zr, 1); 1566 jpeg_codec_sleep(zr, 0); 1567 1568 /* 1569 * set individual interrupt enables (without GIRQ1) 1570 * but don't global enable until zoran_open() 1571 */ 1572 zr36057_init_vfe(zr); 1573 1574 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1575 1576 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts 1577 } 1578 1579 void 1580 zr36057_restart (struct zoran *zr) 1581 { 1582 btwrite(0, ZR36057_SPGPPCR); 1583 mdelay(1); 1584 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR); 1585 mdelay(1); 1586 1587 /* assert P_Reset */ 1588 btwrite(0, ZR36057_JPC); 1589 /* set up GPIO direction - all output */ 1590 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR); 1591 1592 /* set up GPIO pins and guest bus timing */ 1593 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1); 1594 } 1595 1596 /* 1597 * initialize video front end 1598 */ 1599 1600 static void 1601 zr36057_init_vfe (struct zoran *zr) 1602 { 1603 u32 reg; 1604 1605 reg = btread(ZR36057_VFESPFR); 1606 reg |= ZR36057_VFESPFR_LittleEndian; 1607 reg &= ~ZR36057_VFESPFR_VCLKPol; 1608 reg |= ZR36057_VFESPFR_ExtFl; 1609 reg |= ZR36057_VFESPFR_TopField; 1610 btwrite(reg, ZR36057_VFESPFR); 1611 reg = btread(ZR36057_VDCR); 1612 if (pci_pci_problems & PCIPCI_TRITON) 1613 // || zr->revision < 1) // Revision 1 has also Triton support 1614 reg &= ~ZR36057_VDCR_Triton; 1615 else 1616 reg |= ZR36057_VDCR_Triton; 1617 btwrite(reg, ZR36057_VDCR); 1618 } 1619