1 /* 2 * Zoran zr36057/zr36067 PCI controller driver, for the 3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux 4 * Media Labs LML33/LML33R10. 5 * 6 * This part handles device access (PCI/I2C/codec/...) 7 * 8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> 9 * 10 * Currently maintained by: 11 * Ronald Bultje <rbultje@ronald.bitfreak.net> 12 * Laurent Pinchart <laurent.pinchart@skynet.be> 13 * Mailinglist <mjpeg-users@lists.sf.net> 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 28 */ 29 30 #include <linux/types.h> 31 #include <linux/kernel.h> 32 #include <linux/module.h> 33 #include <linux/vmalloc.h> 34 #include <linux/ktime.h> 35 36 #include <linux/interrupt.h> 37 #include <linux/proc_fs.h> 38 #include <linux/i2c.h> 39 #include <linux/i2c-algo-bit.h> 40 #include <linux/videodev2.h> 41 #include <media/v4l2-common.h> 42 #include <linux/spinlock.h> 43 #include <linux/sem.h> 44 45 #include <linux/pci.h> 46 #include <linux/delay.h> 47 #include <linux/wait.h> 48 49 #include <asm/byteorder.h> 50 #include <asm/io.h> 51 52 #include "videocodec.h" 53 #include "zoran.h" 54 #include "zoran_device.h" 55 #include "zoran_card.h" 56 57 #define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \ 58 ZR36057_ISR_GIRQ1 | \ 59 ZR36057_ISR_JPEGRepIRQ ) 60 61 static bool lml33dpath; /* default = 0 62 * 1 will use digital path in capture 63 * mode instead of analog. It can be 64 * used for picture adjustments using 65 * tool like xawtv while watching image 66 * on TV monitor connected to the output. 67 * However, due to absence of 75 Ohm 68 * load on Bt819 input, there will be 69 * some image imperfections */ 70 71 module_param(lml33dpath, bool, 0644); 72 MODULE_PARM_DESC(lml33dpath, 73 "Use digital path capture mode (on LML33 cards)"); 74 75 static void 76 zr36057_init_vfe (struct zoran *zr); 77 78 /* 79 * General Purpose I/O and Guest bus access 80 */ 81 82 /* 83 * This is a bit tricky. When a board lacks a GPIO function, the corresponding 84 * GPIO bit number in the card_info structure is set to 0. 85 */ 86 87 void 88 GPIO (struct zoran *zr, 89 int bit, 90 unsigned int value) 91 { 92 u32 reg; 93 u32 mask; 94 95 /* Make sure the bit number is legal 96 * A bit number of -1 (lacking) gives a mask of 0, 97 * making it harmless */ 98 mask = (1 << (24 + bit)) & 0xff000000; 99 reg = btread(ZR36057_GPPGCR1) & ~mask; 100 if (value) { 101 reg |= mask; 102 } 103 btwrite(reg, ZR36057_GPPGCR1); 104 udelay(1); 105 } 106 107 /* 108 * Wait til post office is no longer busy 109 */ 110 111 int 112 post_office_wait (struct zoran *zr) 113 { 114 u32 por; 115 116 // while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) { 117 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) { 118 /* wait for something to happen */ 119 } 120 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) { 121 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */ 122 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr), 123 por); 124 return -1; 125 } 126 127 return 0; 128 } 129 130 int 131 post_office_write (struct zoran *zr, 132 unsigned int guest, 133 unsigned int reg, 134 unsigned int value) 135 { 136 u32 por; 137 138 por = 139 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | 140 ((reg & 7) << 16) | (value & 0xFF); 141 btwrite(por, ZR36057_POR); 142 143 return post_office_wait(zr); 144 } 145 146 int 147 post_office_read (struct zoran *zr, 148 unsigned int guest, 149 unsigned int reg) 150 { 151 u32 por; 152 153 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16); 154 btwrite(por, ZR36057_POR); 155 if (post_office_wait(zr) < 0) { 156 return -1; 157 } 158 159 return btread(ZR36057_POR) & 0xFF; 160 } 161 162 /* 163 * detect guests 164 */ 165 166 static void 167 dump_guests (struct zoran *zr) 168 { 169 if (zr36067_debug > 2) { 170 int i, guest[8]; 171 172 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 173 guest[i] = post_office_read(zr, i, 0); 174 } 175 176 printk(KERN_INFO "%s: Guests: %*ph\n", 177 ZR_DEVNAME(zr), 8, guest); 178 } 179 } 180 181 void 182 detect_guest_activity (struct zoran *zr) 183 { 184 int timeout, i, j, res, guest[8], guest0[8], change[8][3]; 185 ktime_t t0, t1; 186 187 dump_guests(zr); 188 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n", 189 ZR_DEVNAME(zr)); 190 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 191 guest0[i] = guest[i] = post_office_read(zr, i, 0); 192 } 193 194 timeout = 0; 195 j = 0; 196 t0 = ktime_get(); 197 while (timeout < 10000) { 198 udelay(10); 199 timeout++; 200 for (i = 1; (i < 8) && (j < 8); i++) { 201 res = post_office_read(zr, i, 0); 202 if (res != guest[i]) { 203 t1 = ktime_get(); 204 change[j][0] = ktime_to_us(ktime_sub(t1, t0)); 205 t0 = t1; 206 change[j][1] = i; 207 change[j][2] = res; 208 j++; 209 guest[i] = res; 210 } 211 } 212 if (j >= 8) 213 break; 214 } 215 216 printk(KERN_INFO "%s: Guests: %*ph\n", ZR_DEVNAME(zr), 8, guest0); 217 218 if (j == 0) { 219 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr)); 220 return; 221 } 222 for (i = 0; i < j; i++) { 223 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr), 224 change[i][0], change[i][1], change[i][2]); 225 } 226 } 227 228 /* 229 * JPEG Codec access 230 */ 231 232 void 233 jpeg_codec_sleep (struct zoran *zr, 234 int sleep) 235 { 236 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep); 237 if (!sleep) { 238 dprintk(3, 239 KERN_DEBUG 240 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n", 241 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 242 udelay(500); 243 } else { 244 dprintk(3, 245 KERN_DEBUG 246 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n", 247 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 248 udelay(2); 249 } 250 } 251 252 int 253 jpeg_codec_reset (struct zoran *zr) 254 { 255 /* Take the codec out of sleep */ 256 jpeg_codec_sleep(zr, 0); 257 258 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) { 259 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0, 260 0); 261 udelay(2); 262 } else { 263 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0); 264 udelay(2); 265 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1); 266 udelay(2); 267 } 268 269 return 0; 270 } 271 272 /* 273 * Set the registers for the size we have specified. Don't bother 274 * trying to understand this without the ZR36057 manual in front of 275 * you [AC]. 276 * 277 * PS: The manual is free for download in .pdf format from 278 * www.zoran.com - nicely done those folks. 279 */ 280 281 static void 282 zr36057_adjust_vfe (struct zoran *zr, 283 enum zoran_codec_mode mode) 284 { 285 u32 reg; 286 287 switch (mode) { 288 case BUZ_MODE_MOTION_DECOMPRESS: 289 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 290 reg = btread(ZR36057_VFEHCR); 291 if ((reg & (1 << 10)) && zr->card.type != LML33R10) { 292 reg += ((1 << 10) | 1); 293 } 294 btwrite(reg, ZR36057_VFEHCR); 295 break; 296 case BUZ_MODE_MOTION_COMPRESS: 297 case BUZ_MODE_IDLE: 298 default: 299 if ((zr->norm & V4L2_STD_NTSC) || 300 (zr->card.type == LML33R10 && 301 (zr->norm & V4L2_STD_PAL))) 302 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 303 else 304 btor(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 } 312 } 313 314 /* 315 * set geometry 316 */ 317 318 static void 319 zr36057_set_vfe (struct zoran *zr, 320 int video_width, 321 int video_height, 322 const struct zoran_format *format) 323 { 324 struct tvnorm *tvn; 325 unsigned HStart, HEnd, VStart, VEnd; 326 unsigned DispMode; 327 unsigned VidWinWid, VidWinHt; 328 unsigned hcrop1, hcrop2, vcrop1, vcrop2; 329 unsigned Wa, We, Ha, He; 330 unsigned X, Y, HorDcm, VerDcm; 331 u32 reg; 332 unsigned mask_line_size; 333 334 tvn = zr->timing; 335 336 Wa = tvn->Wa; 337 Ha = tvn->Ha; 338 339 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n", 340 ZR_DEVNAME(zr), video_width, video_height); 341 342 if (video_width < BUZ_MIN_WIDTH || 343 video_height < BUZ_MIN_HEIGHT || 344 video_width > Wa || video_height > Ha) { 345 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", 346 ZR_DEVNAME(zr), video_width, video_height); 347 return; 348 } 349 350 /**** zr36057 ****/ 351 352 /* horizontal */ 353 VidWinWid = video_width; 354 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa); 355 We = (VidWinWid * 64) / X; 356 HorDcm = 64 - X; 357 hcrop1 = 2 * ((tvn->Wa - We) / 4); 358 hcrop2 = tvn->Wa - We - hcrop1; 359 HStart = tvn->HStart ? tvn->HStart : 1; 360 /* (Ronald) Original comment: 361 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+" 362 * this is false. It inverses chroma values on the LML33R10 (so Cr 363 * suddenly is shown as Cb and reverse, really cool effect if you 364 * want to see blue faces, not useful otherwise). So don't use |1. 365 * However, the DC10 has '0' as HStart, but does need |1, so we 366 * use a dirty check... 367 */ 368 HEnd = HStart + tvn->Wa - 1; 369 HStart += hcrop1; 370 HEnd -= hcrop2; 371 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart) 372 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd); 373 if (zr->card.vfe_pol.hsync_pol) 374 reg |= ZR36057_VFEHCR_HSPol; 375 btwrite(reg, ZR36057_VFEHCR); 376 377 /* Vertical */ 378 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2); 379 VidWinHt = DispMode ? video_height : video_height / 2; 380 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha); 381 He = (VidWinHt * 64) / Y; 382 VerDcm = 64 - Y; 383 vcrop1 = (tvn->Ha / 2 - He) / 2; 384 vcrop2 = tvn->Ha / 2 - He - vcrop1; 385 VStart = tvn->VStart; 386 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP 387 VStart += vcrop1; 388 VEnd -= vcrop2; 389 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart) 390 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd); 391 if (zr->card.vfe_pol.vsync_pol) 392 reg |= ZR36057_VFEVCR_VSPol; 393 btwrite(reg, ZR36057_VFEVCR); 394 395 /* scaler and pixel format */ 396 reg = 0; 397 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); 398 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); 399 reg |= (DispMode << ZR36057_VFESPFR_DispMode); 400 /* RJ: I don't know, why the following has to be the opposite 401 * of the corresponding ZR36060 setting, but only this way 402 * we get the correct colors when uncompressing to the screen */ 403 //reg |= ZR36057_VFESPFR_VCLKPol; /**/ 404 /* RJ: Don't know if that is needed for NTSC also */ 405 if (!(zr->norm & V4L2_STD_NTSC)) 406 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang 407 reg |= ZR36057_VFESPFR_TopField; 408 if (HorDcm >= 48) { 409 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ 410 } else if (HorDcm >= 32) { 411 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */ 412 } else if (HorDcm >= 16) { 413 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ 414 } 415 reg |= format->vfespfr; 416 btwrite(reg, ZR36057_VFESPFR); 417 418 /* display configuration */ 419 reg = (16 << ZR36057_VDCR_MinPix) 420 | (VidWinHt << ZR36057_VDCR_VidWinHt) 421 | (VidWinWid << ZR36057_VDCR_VidWinWid); 422 if (pci_pci_problems & PCIPCI_TRITON) 423 // || zr->revision < 1) // Revision 1 has also Triton support 424 reg &= ~ZR36057_VDCR_Triton; 425 else 426 reg |= ZR36057_VDCR_Triton; 427 btwrite(reg, ZR36057_VDCR); 428 429 /* (Ronald) don't write this if overlay_mask = NULL */ 430 if (zr->overlay_mask) { 431 /* Write overlay clipping mask data, but don't enable overlay clipping */ 432 /* RJ: since this makes only sense on the screen, we use 433 * zr->overlay_settings.width instead of video_width */ 434 435 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 436 reg = virt_to_bus(zr->overlay_mask); 437 btwrite(reg, ZR36057_MMTR); 438 reg = virt_to_bus(zr->overlay_mask + mask_line_size); 439 btwrite(reg, ZR36057_MMBR); 440 reg = 441 mask_line_size - (zr->overlay_settings.width + 442 31) / 32; 443 if (DispMode == 0) 444 reg += mask_line_size; 445 reg <<= ZR36057_OCR_MaskStride; 446 btwrite(reg, ZR36057_OCR); 447 } 448 449 zr36057_adjust_vfe(zr, zr->codec_mode); 450 } 451 452 /* 453 * Switch overlay on or off 454 */ 455 456 void 457 zr36057_overlay (struct zoran *zr, 458 int on) 459 { 460 u32 reg; 461 462 if (on) { 463 /* do the necessary settings ... */ 464 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */ 465 466 zr36057_set_vfe(zr, 467 zr->overlay_settings.width, 468 zr->overlay_settings.height, 469 zr->overlay_settings.format); 470 471 /* Start and length of each line MUST be 4-byte aligned. 472 * This should be already checked before the call to this routine. 473 * All error messages are internal driver checking only! */ 474 475 /* video display top and bottom registers */ 476 reg = (long) zr->vbuf_base + 477 zr->overlay_settings.x * 478 ((zr->overlay_settings.format->depth + 7) / 8) + 479 zr->overlay_settings.y * 480 zr->vbuf_bytesperline; 481 btwrite(reg, ZR36057_VDTR); 482 if (reg & 3) 483 dprintk(1, 484 KERN_ERR 485 "%s: zr36057_overlay() - video_address not aligned\n", 486 ZR_DEVNAME(zr)); 487 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 488 reg += zr->vbuf_bytesperline; 489 btwrite(reg, ZR36057_VDBR); 490 491 /* video stride, status, and frame grab register */ 492 reg = zr->vbuf_bytesperline - 493 zr->overlay_settings.width * 494 ((zr->overlay_settings.format->depth + 7) / 8); 495 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 496 reg += zr->vbuf_bytesperline; 497 if (reg & 3) 498 dprintk(1, 499 KERN_ERR 500 "%s: zr36057_overlay() - video_stride not aligned\n", 501 ZR_DEVNAME(zr)); 502 reg = (reg << ZR36057_VSSFGR_DispStride); 503 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */ 504 btwrite(reg, ZR36057_VSSFGR); 505 506 /* Set overlay clipping */ 507 if (zr->overlay_settings.clipcount > 0) 508 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR); 509 510 /* ... and switch it on */ 511 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR); 512 } else { 513 /* Switch it off */ 514 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 515 } 516 } 517 518 /* 519 * The overlay mask has one bit for each pixel on a scan line, 520 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels. 521 */ 522 523 void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count) 524 { 525 struct zoran *zr = fh->zr; 526 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 527 u32 *mask; 528 int x, y, width, height; 529 unsigned i, j, k; 530 531 /* fill mask with one bits */ 532 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); 533 534 for (i = 0; i < count; ++i) { 535 /* pick up local copy of clip */ 536 x = vp[i].c.left; 537 y = vp[i].c.top; 538 width = vp[i].c.width; 539 height = vp[i].c.height; 540 541 /* trim clips that extend beyond the window */ 542 if (x < 0) { 543 width += x; 544 x = 0; 545 } 546 if (y < 0) { 547 height += y; 548 y = 0; 549 } 550 if (x + width > fh->overlay_settings.width) { 551 width = fh->overlay_settings.width - x; 552 } 553 if (y + height > fh->overlay_settings.height) { 554 height = fh->overlay_settings.height - y; 555 } 556 557 /* ignore degenerate clips */ 558 if (height <= 0) { 559 continue; 560 } 561 if (width <= 0) { 562 continue; 563 } 564 565 /* apply clip for each scan line */ 566 for (j = 0; j < height; ++j) { 567 /* reset bit for each pixel */ 568 /* this can be optimized later if need be */ 569 mask = fh->overlay_mask + (y + j) * mask_line_size; 570 for (k = 0; k < width; ++k) { 571 mask[(x + k) / 32] &= 572 ~((u32) 1 << (x + k) % 32); 573 } 574 } 575 } 576 } 577 578 /* Enable/Disable uncompressed memory grabbing of the 36057 */ 579 580 void 581 zr36057_set_memgrab (struct zoran *zr, 582 int mode) 583 { 584 if (mode) { 585 /* We only check SnapShot and not FrameGrab here. SnapShot==1 586 * means a capture is already in progress, but FrameGrab==1 587 * doesn't necessary mean that. It's more correct to say a 1 588 * to 0 transition indicates a capture completed. If a 589 * capture is pending when capturing is tuned off, FrameGrab 590 * will be stuck at 1 until capturing is turned back on. 591 */ 592 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) 593 dprintk(1, 594 KERN_WARNING 595 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n", 596 ZR_DEVNAME(zr)); 597 598 /* switch on VSync interrupts */ 599 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts 600 btor(zr->card.vsync_int, ZR36057_ICR); // SW 601 602 /* enable SnapShot */ 603 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 604 605 /* Set zr36057 video front end and enable video */ 606 zr36057_set_vfe(zr, zr->v4l_settings.width, 607 zr->v4l_settings.height, 608 zr->v4l_settings.format); 609 610 zr->v4l_memgrab_active = 1; 611 } else { 612 /* switch off VSync interrupts */ 613 btand(~zr->card.vsync_int, ZR36057_ICR); // SW 614 615 zr->v4l_memgrab_active = 0; 616 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 617 618 /* reenable grabbing to screen if it was running */ 619 if (zr->v4l_overlay_active) { 620 zr36057_overlay(zr, 1); 621 } else { 622 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 623 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 624 } 625 } 626 } 627 628 int 629 wait_grab_pending (struct zoran *zr) 630 { 631 unsigned long flags; 632 633 /* wait until all pending grabs are finished */ 634 635 if (!zr->v4l_memgrab_active) 636 return 0; 637 638 wait_event_interruptible(zr->v4l_capq, 639 (zr->v4l_pend_tail == zr->v4l_pend_head)); 640 if (signal_pending(current)) 641 return -ERESTARTSYS; 642 643 spin_lock_irqsave(&zr->spinlock, flags); 644 zr36057_set_memgrab(zr, 0); 645 spin_unlock_irqrestore(&zr->spinlock, flags); 646 647 return 0; 648 } 649 650 /***************************************************************************** 651 * * 652 * Set up the Buz-specific MJPEG part * 653 * * 654 *****************************************************************************/ 655 656 static inline void 657 set_frame (struct zoran *zr, 658 int val) 659 { 660 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val); 661 } 662 663 static void 664 set_videobus_dir (struct zoran *zr, 665 int val) 666 { 667 switch (zr->card.type) { 668 case LML33: 669 case LML33R10: 670 if (!lml33dpath) 671 GPIO(zr, 5, val); 672 else 673 GPIO(zr, 5, 1); 674 break; 675 default: 676 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR], 677 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val); 678 break; 679 } 680 } 681 682 static void 683 init_jpeg_queue (struct zoran *zr) 684 { 685 int i; 686 687 /* re-initialize DMA ring stuff */ 688 zr->jpg_que_head = 0; 689 zr->jpg_dma_head = 0; 690 zr->jpg_dma_tail = 0; 691 zr->jpg_que_tail = 0; 692 zr->jpg_seq_num = 0; 693 zr->JPEG_error = 0; 694 zr->num_errors = 0; 695 zr->jpg_err_seq = 0; 696 zr->jpg_err_shift = 0; 697 zr->jpg_queued_num = 0; 698 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 699 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 700 } 701 for (i = 0; i < BUZ_NUM_STAT_COM; i++) { 702 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ 703 } 704 } 705 706 static void 707 zr36057_set_jpg (struct zoran *zr, 708 enum zoran_codec_mode mode) 709 { 710 struct tvnorm *tvn; 711 u32 reg; 712 713 tvn = zr->timing; 714 715 /* assert P_Reset, disable code transfer, deassert Active */ 716 btwrite(0, ZR36057_JPC); 717 718 /* MJPEG compression mode */ 719 switch (mode) { 720 721 case BUZ_MODE_MOTION_COMPRESS: 722 default: 723 reg = ZR36057_JMC_MJPGCmpMode; 724 break; 725 726 case BUZ_MODE_MOTION_DECOMPRESS: 727 reg = ZR36057_JMC_MJPGExpMode; 728 reg |= ZR36057_JMC_SyncMstr; 729 /* RJ: The following is experimental - improves the output to screen */ 730 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM 731 break; 732 733 case BUZ_MODE_STILL_COMPRESS: 734 reg = ZR36057_JMC_JPGCmpMode; 735 break; 736 737 case BUZ_MODE_STILL_DECOMPRESS: 738 reg = ZR36057_JMC_JPGExpMode; 739 break; 740 741 } 742 reg |= ZR36057_JMC_JPG; 743 if (zr->jpg_settings.field_per_buff == 1) 744 reg |= ZR36057_JMC_Fld_per_buff; 745 btwrite(reg, ZR36057_JMC); 746 747 /* vertical */ 748 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR); 749 reg = (6 << ZR36057_VSP_VsyncSize) | 750 (tvn->Ht << ZR36057_VSP_FrmTot); 751 btwrite(reg, ZR36057_VSP); 752 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) | 753 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY); 754 btwrite(reg, ZR36057_FVAP); 755 756 /* horizontal */ 757 if (zr->card.vfe_pol.hsync_pol) 758 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 759 else 760 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 761 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) | 762 (tvn->Wt << ZR36057_HSP_LineTot); 763 btwrite(reg, ZR36057_HSP); 764 reg = ((zr->jpg_settings.img_x + 765 tvn->HStart + 4) << ZR36057_FHAP_NAX) | 766 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX); 767 btwrite(reg, ZR36057_FHAP); 768 769 /* field process parameters */ 770 if (zr->jpg_settings.odd_even) 771 reg = ZR36057_FPP_Odd_Even; 772 else 773 reg = 0; 774 775 btwrite(reg, ZR36057_FPP); 776 777 /* Set proper VCLK Polarity, else colors will be wrong during playback */ 778 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR); 779 780 /* code base address */ 781 reg = virt_to_bus(zr->stat_com); 782 btwrite(reg, ZR36057_JCBA); 783 784 /* FIFO threshold (FIFO is 160. double words) */ 785 /* NOTE: decimal values here */ 786 switch (mode) { 787 788 case BUZ_MODE_STILL_COMPRESS: 789 case BUZ_MODE_MOTION_COMPRESS: 790 if (zr->card.type != BUZ) 791 reg = 140; 792 else 793 reg = 60; 794 break; 795 796 case BUZ_MODE_STILL_DECOMPRESS: 797 case BUZ_MODE_MOTION_DECOMPRESS: 798 reg = 20; 799 break; 800 801 default: 802 reg = 80; 803 break; 804 805 } 806 btwrite(reg, ZR36057_JCFT); 807 zr36057_adjust_vfe(zr, mode); 808 809 } 810 811 void 812 print_interrupts (struct zoran *zr) 813 { 814 int res, noerr = 0; 815 816 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr)); 817 if ((res = zr->field_counter) < -1 || res > 1) { 818 printk(KERN_CONT " FD:%d", res); 819 } 820 if ((res = zr->intr_counter_GIRQ1) != 0) { 821 printk(KERN_CONT " GIRQ1:%d", res); 822 noerr++; 823 } 824 if ((res = zr->intr_counter_GIRQ0) != 0) { 825 printk(KERN_CONT " GIRQ0:%d", res); 826 noerr++; 827 } 828 if ((res = zr->intr_counter_CodRepIRQ) != 0) { 829 printk(KERN_CONT " CodRepIRQ:%d", res); 830 noerr++; 831 } 832 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) { 833 printk(KERN_CONT " JPEGRepIRQ:%d", res); 834 noerr++; 835 } 836 if (zr->JPEG_max_missed) { 837 printk(KERN_CONT " JPEG delays: max=%d min=%d", zr->JPEG_max_missed, 838 zr->JPEG_min_missed); 839 } 840 if (zr->END_event_missed) { 841 printk(KERN_CONT " ENDs missed: %d", zr->END_event_missed); 842 } 843 //if (zr->jpg_queued_num) { 844 printk(KERN_CONT " queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail, 845 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head); 846 //} 847 if (!noerr) { 848 printk(KERN_CONT ": no interrupts detected."); 849 } 850 printk(KERN_CONT "\n"); 851 } 852 853 void 854 clear_interrupt_counters (struct zoran *zr) 855 { 856 zr->intr_counter_GIRQ1 = 0; 857 zr->intr_counter_GIRQ0 = 0; 858 zr->intr_counter_CodRepIRQ = 0; 859 zr->intr_counter_JPEGRepIRQ = 0; 860 zr->field_counter = 0; 861 zr->IRQ1_in = 0; 862 zr->IRQ1_out = 0; 863 zr->JPEG_in = 0; 864 zr->JPEG_out = 0; 865 zr->JPEG_0 = 0; 866 zr->JPEG_1 = 0; 867 zr->END_event_missed = 0; 868 zr->JPEG_missed = 0; 869 zr->JPEG_max_missed = 0; 870 zr->JPEG_min_missed = 0x7fffffff; 871 } 872 873 static u32 874 count_reset_interrupt (struct zoran *zr) 875 { 876 u32 isr; 877 878 if ((isr = btread(ZR36057_ISR) & 0x78000000)) { 879 if (isr & ZR36057_ISR_GIRQ1) { 880 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR); 881 zr->intr_counter_GIRQ1++; 882 } 883 if (isr & ZR36057_ISR_GIRQ0) { 884 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR); 885 zr->intr_counter_GIRQ0++; 886 } 887 if (isr & ZR36057_ISR_CodRepIRQ) { 888 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR); 889 zr->intr_counter_CodRepIRQ++; 890 } 891 if (isr & ZR36057_ISR_JPEGRepIRQ) { 892 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR); 893 zr->intr_counter_JPEGRepIRQ++; 894 } 895 } 896 return isr; 897 } 898 899 void 900 jpeg_start (struct zoran *zr) 901 { 902 int reg; 903 904 zr->frame_num = 0; 905 906 /* deassert P_reset, disable code transfer, deassert Active */ 907 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC); 908 /* stop flushing the internal code buffer */ 909 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 910 /* enable code transfer */ 911 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC); 912 913 /* clear IRQs */ 914 btwrite(IRQ_MASK, ZR36057_ISR); 915 /* enable the JPEG IRQs */ 916 btwrite(zr->card.jpeg_int | 917 ZR36057_ICR_JPEGRepIRQ | 918 ZR36057_ICR_IntPinEn, 919 ZR36057_ICR); 920 921 set_frame(zr, 0); // \FRAME 922 923 /* set the JPEG codec guest ID */ 924 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) | 925 (0 << ZR36057_JCGI_JPEGuestReg); 926 btwrite(reg, ZR36057_JCGI); 927 928 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 && 929 zr->card.video_codec == CODEC_TYPE_ZR36050) { 930 /* Enable processing on the ZR36016 */ 931 if (zr->vfe) 932 zr36016_write(zr->vfe, 0, 1); 933 934 /* load the address of the GO register in the ZR36050 latch */ 935 post_office_write(zr, 0, 0, 0); 936 } 937 938 /* assert Active */ 939 btor(ZR36057_JPC_Active, ZR36057_JPC); 940 941 /* enable the Go generation */ 942 btor(ZR36057_JMC_Go_en, ZR36057_JMC); 943 udelay(30); 944 945 set_frame(zr, 1); // /FRAME 946 947 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr)); 948 } 949 950 void 951 zr36057_enable_jpg (struct zoran *zr, 952 enum zoran_codec_mode mode) 953 { 954 struct vfe_settings cap; 955 int field_size = 956 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff; 957 958 zr->codec_mode = mode; 959 960 cap.x = zr->jpg_settings.img_x; 961 cap.y = zr->jpg_settings.img_y; 962 cap.width = zr->jpg_settings.img_width; 963 cap.height = zr->jpg_settings.img_height; 964 cap.decimation = 965 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8); 966 cap.quality = zr->jpg_settings.jpg_comp.quality; 967 968 switch (mode) { 969 970 case BUZ_MODE_MOTION_COMPRESS: { 971 struct jpeg_app_marker app; 972 struct jpeg_com_marker com; 973 974 /* In motion compress mode, the decoder output must be enabled, and 975 * the video bus direction set to input. 976 */ 977 set_videobus_dir(zr, 0); 978 decoder_call(zr, video, s_stream, 1); 979 encoder_call(zr, video, s_routing, 0, 0, 0); 980 981 /* Take the JPEG codec and the VFE out of sleep */ 982 jpeg_codec_sleep(zr, 0); 983 984 /* set JPEG app/com marker */ 985 app.appn = zr->jpg_settings.jpg_comp.APPn; 986 app.len = zr->jpg_settings.jpg_comp.APP_len; 987 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60); 988 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA, 989 sizeof(struct jpeg_app_marker), &app); 990 991 com.len = zr->jpg_settings.jpg_comp.COM_len; 992 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60); 993 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA, 994 sizeof(struct jpeg_com_marker), &com); 995 996 /* Setup the JPEG codec */ 997 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE, 998 sizeof(int), &field_size); 999 zr->codec->set_video(zr->codec, zr->timing, &cap, 1000 &zr->card.vfe_pol); 1001 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION); 1002 1003 /* Setup the VFE */ 1004 if (zr->vfe) { 1005 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE, 1006 sizeof(int), &field_size); 1007 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1008 &zr->card.vfe_pol); 1009 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION); 1010 } 1011 1012 init_jpeg_queue(zr); 1013 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1014 1015 clear_interrupt_counters(zr); 1016 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n", 1017 ZR_DEVNAME(zr)); 1018 break; 1019 } 1020 1021 case BUZ_MODE_MOTION_DECOMPRESS: 1022 /* In motion decompression mode, the decoder output must be disabled, and 1023 * the video bus direction set to output. 1024 */ 1025 decoder_call(zr, video, s_stream, 0); 1026 set_videobus_dir(zr, 1); 1027 encoder_call(zr, video, s_routing, 1, 0, 0); 1028 1029 /* Take the JPEG codec and the VFE out of sleep */ 1030 jpeg_codec_sleep(zr, 0); 1031 /* Setup the VFE */ 1032 if (zr->vfe) { 1033 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1034 &zr->card.vfe_pol); 1035 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION); 1036 } 1037 /* Setup the JPEG codec */ 1038 zr->codec->set_video(zr->codec, zr->timing, &cap, 1039 &zr->card.vfe_pol); 1040 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION); 1041 1042 init_jpeg_queue(zr); 1043 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1044 1045 clear_interrupt_counters(zr); 1046 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n", 1047 ZR_DEVNAME(zr)); 1048 break; 1049 1050 case BUZ_MODE_IDLE: 1051 default: 1052 /* shut down processing */ 1053 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ), 1054 ZR36057_ICR); 1055 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ, 1056 ZR36057_ISR); 1057 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en 1058 1059 msleep(50); 1060 1061 set_videobus_dir(zr, 0); 1062 set_frame(zr, 1); // /FRAME 1063 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush 1064 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active 1065 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC); 1066 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC); 1067 jpeg_codec_reset(zr); 1068 jpeg_codec_sleep(zr, 1); 1069 zr36057_adjust_vfe(zr, mode); 1070 1071 decoder_call(zr, video, s_stream, 1); 1072 encoder_call(zr, video, s_routing, 0, 0, 0); 1073 1074 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr)); 1075 break; 1076 1077 } 1078 } 1079 1080 /* when this is called the spinlock must be held */ 1081 void 1082 zoran_feed_stat_com (struct zoran *zr) 1083 { 1084 /* move frames from pending queue to DMA */ 1085 1086 int frame, i, max_stat_com; 1087 1088 max_stat_com = 1089 (zr->jpg_settings.TmpDcm == 1090 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1); 1091 1092 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com && 1093 zr->jpg_dma_head < zr->jpg_que_head) { 1094 1095 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME]; 1096 if (zr->jpg_settings.TmpDcm == 1) { 1097 /* fill 1 stat_com entry */ 1098 i = (zr->jpg_dma_head - 1099 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1100 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1101 break; 1102 zr->stat_com[i] = 1103 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1104 } else { 1105 /* fill 2 stat_com entries */ 1106 i = ((zr->jpg_dma_head - 1107 zr->jpg_err_shift) & 1) * 2; 1108 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1109 break; 1110 zr->stat_com[i] = 1111 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1112 zr->stat_com[i + 1] = 1113 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1114 } 1115 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA; 1116 zr->jpg_dma_head++; 1117 1118 } 1119 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) 1120 zr->jpg_queued_num++; 1121 } 1122 1123 /* when this is called the spinlock must be held */ 1124 static void 1125 zoran_reap_stat_com (struct zoran *zr) 1126 { 1127 /* move frames from DMA queue to done queue */ 1128 1129 int i; 1130 u32 stat_com; 1131 unsigned int seq; 1132 unsigned int dif; 1133 struct zoran_buffer *buffer; 1134 int frame; 1135 1136 /* In motion decompress we don't have a hardware frame counter, 1137 * we just count the interrupts here */ 1138 1139 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1140 zr->jpg_seq_num++; 1141 } 1142 while (zr->jpg_dma_tail < zr->jpg_dma_head) { 1143 if (zr->jpg_settings.TmpDcm == 1) 1144 i = (zr->jpg_dma_tail - 1145 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1146 else 1147 i = ((zr->jpg_dma_tail - 1148 zr->jpg_err_shift) & 1) * 2 + 1; 1149 1150 stat_com = le32_to_cpu(zr->stat_com[i]); 1151 1152 if ((stat_com & 1) == 0) { 1153 return; 1154 } 1155 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1156 buffer = &zr->jpg_buffers.buffer[frame]; 1157 v4l2_get_timestamp(&buffer->bs.timestamp); 1158 1159 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1160 buffer->bs.length = (stat_com & 0x7fffff) >> 1; 1161 1162 /* update sequence number with the help of the counter in stat_com */ 1163 1164 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff; 1165 dif = (seq - zr->jpg_seq_num) & 0xff; 1166 zr->jpg_seq_num += dif; 1167 } else { 1168 buffer->bs.length = 0; 1169 } 1170 buffer->bs.seq = 1171 zr->jpg_settings.TmpDcm == 1172 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num; 1173 buffer->state = BUZ_STATE_DONE; 1174 1175 zr->jpg_dma_tail++; 1176 } 1177 } 1178 1179 static void zoran_restart(struct zoran *zr) 1180 { 1181 /* Now the stat_comm buffer is ready for restart */ 1182 unsigned int status = 0; 1183 int mode; 1184 1185 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1186 decoder_call(zr, video, g_input_status, &status); 1187 mode = CODEC_DO_COMPRESSION; 1188 } else { 1189 status = V4L2_IN_ST_NO_SIGNAL; 1190 mode = CODEC_DO_EXPANSION; 1191 } 1192 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1193 !(status & V4L2_IN_ST_NO_SIGNAL)) { 1194 /********** RESTART code *************/ 1195 jpeg_codec_reset(zr); 1196 zr->codec->set_mode(zr->codec, mode); 1197 zr36057_set_jpg(zr, zr->codec_mode); 1198 jpeg_start(zr); 1199 1200 if (zr->num_errors <= 8) 1201 dprintk(2, KERN_INFO "%s: Restart\n", 1202 ZR_DEVNAME(zr)); 1203 1204 zr->JPEG_missed = 0; 1205 zr->JPEG_error = 2; 1206 /********** End RESTART code ***********/ 1207 } 1208 } 1209 1210 static void 1211 error_handler (struct zoran *zr, 1212 u32 astat, 1213 u32 stat) 1214 { 1215 int i; 1216 1217 /* This is JPEG error handling part */ 1218 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS && 1219 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) { 1220 return; 1221 } 1222 1223 if ((stat & 1) == 0 && 1224 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS && 1225 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) { 1226 /* No free buffers... */ 1227 zoran_reap_stat_com(zr); 1228 zoran_feed_stat_com(zr); 1229 wake_up_interruptible(&zr->jpg_capq); 1230 zr->JPEG_missed = 0; 1231 return; 1232 } 1233 1234 if (zr->JPEG_error == 1) { 1235 zoran_restart(zr); 1236 return; 1237 } 1238 1239 /* 1240 * First entry: error just happened during normal operation 1241 * 1242 * In BUZ_MODE_MOTION_COMPRESS: 1243 * 1244 * Possible glitch in TV signal. In this case we should 1245 * stop the codec and wait for good quality signal before 1246 * restarting it to avoid further problems 1247 * 1248 * In BUZ_MODE_MOTION_DECOMPRESS: 1249 * 1250 * Bad JPEG frame: we have to mark it as processed (codec crashed 1251 * and was not able to do it itself), and to remove it from queue. 1252 */ 1253 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 1254 udelay(1); 1255 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8; 1256 btwrite(0, ZR36057_JPC); 1257 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 1258 jpeg_codec_reset(zr); 1259 jpeg_codec_sleep(zr, 1); 1260 zr->JPEG_error = 1; 1261 zr->num_errors++; 1262 1263 /* Report error */ 1264 if (zr36067_debug > 1 && zr->num_errors <= 8) { 1265 long frame; 1266 int j; 1267 1268 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1269 printk(KERN_ERR 1270 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ", 1271 ZR_DEVNAME(zr), stat, zr->last_isr, 1272 zr->jpg_que_tail, zr->jpg_dma_tail, 1273 zr->jpg_dma_head, zr->jpg_que_head, 1274 zr->jpg_seq_num, frame); 1275 printk(KERN_INFO "stat_com frames:"); 1276 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1277 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 1278 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus) 1279 printk(KERN_CONT "% d->%d", j, i); 1280 } 1281 } 1282 printk(KERN_CONT "\n"); 1283 } 1284 /* Find an entry in stat_com and rotate contents */ 1285 if (zr->jpg_settings.TmpDcm == 1) 1286 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1287 else 1288 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1289 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1290 /* Mimic zr36067 operation */ 1291 zr->stat_com[i] |= cpu_to_le32(1); 1292 if (zr->jpg_settings.TmpDcm != 1) 1293 zr->stat_com[i + 1] |= cpu_to_le32(1); 1294 /* Refill */ 1295 zoran_reap_stat_com(zr); 1296 zoran_feed_stat_com(zr); 1297 wake_up_interruptible(&zr->jpg_capq); 1298 /* Find an entry in stat_com again after refill */ 1299 if (zr->jpg_settings.TmpDcm == 1) 1300 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1301 else 1302 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1303 } 1304 if (i) { 1305 /* Rotate stat_comm entries to make current entry first */ 1306 int j; 1307 __le32 bus_addr[BUZ_NUM_STAT_COM]; 1308 1309 /* Here we are copying the stat_com array, which 1310 * is already in little endian format, so 1311 * no endian conversions here 1312 */ 1313 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr)); 1314 1315 for (j = 0; j < BUZ_NUM_STAT_COM; j++) 1316 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM]; 1317 1318 zr->jpg_err_shift += i; 1319 zr->jpg_err_shift &= BUZ_MASK_STAT_COM; 1320 } 1321 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) 1322 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */ 1323 zoran_restart(zr); 1324 } 1325 1326 irqreturn_t 1327 zoran_irq (int irq, 1328 void *dev_id) 1329 { 1330 u32 stat, astat; 1331 int count; 1332 struct zoran *zr; 1333 unsigned long flags; 1334 1335 zr = dev_id; 1336 count = 0; 1337 1338 if (zr->testing) { 1339 /* Testing interrupts */ 1340 spin_lock_irqsave(&zr->spinlock, flags); 1341 while ((stat = count_reset_interrupt(zr))) { 1342 if (count++ > 100) { 1343 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1344 dprintk(1, 1345 KERN_ERR 1346 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n", 1347 ZR_DEVNAME(zr), stat); 1348 wake_up_interruptible(&zr->test_q); 1349 } 1350 } 1351 zr->last_isr = stat; 1352 spin_unlock_irqrestore(&zr->spinlock, flags); 1353 return IRQ_HANDLED; 1354 } 1355 1356 spin_lock_irqsave(&zr->spinlock, flags); 1357 while (1) { 1358 /* get/clear interrupt status bits */ 1359 stat = count_reset_interrupt(zr); 1360 astat = stat & IRQ_MASK; 1361 if (!astat) { 1362 break; 1363 } 1364 dprintk(4, 1365 KERN_DEBUG 1366 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n", 1367 astat, btread(ZR36057_ICR)); 1368 if (astat & zr->card.vsync_int) { // SW 1369 1370 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1371 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1372 /* count missed interrupts */ 1373 zr->JPEG_missed++; 1374 } 1375 //post_office_read(zr,1,0); 1376 /* Interrupts may still happen when 1377 * zr->v4l_memgrab_active is switched off. 1378 * We simply ignore them */ 1379 1380 if (zr->v4l_memgrab_active) { 1381 /* A lot more checks should be here ... */ 1382 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0) 1383 dprintk(1, 1384 KERN_WARNING 1385 "%s: BuzIRQ with SnapShot off ???\n", 1386 ZR_DEVNAME(zr)); 1387 1388 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) { 1389 /* There is a grab on a frame going on, check if it has finished */ 1390 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) { 1391 /* it is finished, notify the user */ 1392 1393 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE; 1394 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq; 1395 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp); 1396 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 1397 zr->v4l_pend_tail++; 1398 } 1399 } 1400 1401 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE) 1402 wake_up_interruptible(&zr->v4l_capq); 1403 1404 /* Check if there is another grab queued */ 1405 1406 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE && 1407 zr->v4l_pend_tail != zr->v4l_pend_head) { 1408 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; 1409 u32 reg; 1410 1411 zr->v4l_grab_frame = frame; 1412 1413 /* Set zr36057 video front end and enable video */ 1414 1415 /* Buffer address */ 1416 1417 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus; 1418 btwrite(reg, ZR36057_VDTR); 1419 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1420 reg += zr->v4l_settings.bytesperline; 1421 btwrite(reg, ZR36057_VDBR); 1422 1423 /* video stride, status, and frame grab register */ 1424 reg = 0; 1425 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1426 reg += zr->v4l_settings.bytesperline; 1427 reg = (reg << ZR36057_VSSFGR_DispStride); 1428 reg |= ZR36057_VSSFGR_VidOvf; 1429 reg |= ZR36057_VSSFGR_SnapShot; 1430 reg |= ZR36057_VSSFGR_FrameGrab; 1431 btwrite(reg, ZR36057_VSSFGR); 1432 1433 btor(ZR36057_VDCR_VidEn, 1434 ZR36057_VDCR); 1435 } 1436 } 1437 1438 /* even if we don't grab, we do want to increment 1439 * the sequence counter to see lost frames */ 1440 zr->v4l_grab_seq++; 1441 } 1442 #if (IRQ_MASK & ZR36057_ISR_CodRepIRQ) 1443 if (astat & ZR36057_ISR_CodRepIRQ) { 1444 zr->intr_counter_CodRepIRQ++; 1445 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", 1446 ZR_DEVNAME(zr))); 1447 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR); 1448 } 1449 #endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */ 1450 1451 #if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) 1452 if ((astat & ZR36057_ISR_JPEGRepIRQ) && 1453 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1454 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) { 1455 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) { 1456 char sv[BUZ_NUM_STAT_COM + 1]; 1457 int i; 1458 1459 printk(KERN_INFO 1460 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n", 1461 ZR_DEVNAME(zr), stat, 1462 zr->jpg_settings.odd_even, 1463 zr->jpg_settings.field_per_buff, 1464 zr->JPEG_missed); 1465 1466 for (i = 0; i < BUZ_NUM_STAT_COM; i++) 1467 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0'; 1468 sv[BUZ_NUM_STAT_COM] = 0; 1469 printk(KERN_INFO 1470 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n", 1471 ZR_DEVNAME(zr), sv, 1472 zr->jpg_que_tail, 1473 zr->jpg_dma_tail, 1474 zr->jpg_dma_head, 1475 zr->jpg_que_head); 1476 } else { 1477 /* Get statistics */ 1478 if (zr->JPEG_missed > zr->JPEG_max_missed) 1479 zr->JPEG_max_missed = zr->JPEG_missed; 1480 if (zr->JPEG_missed < zr->JPEG_min_missed) 1481 zr->JPEG_min_missed = zr->JPEG_missed; 1482 } 1483 1484 if (zr36067_debug > 2 && zr->frame_num < 6) { 1485 int i; 1486 1487 printk(KERN_INFO "%s: seq=%ld stat_com:", 1488 ZR_DEVNAME(zr), zr->jpg_seq_num); 1489 for (i = 0; i < 4; i++) { 1490 printk(KERN_CONT " %08x", 1491 le32_to_cpu(zr->stat_com[i])); 1492 } 1493 printk(KERN_CONT "\n"); 1494 } 1495 zr->frame_num++; 1496 zr->JPEG_missed = 0; 1497 zr->JPEG_error = 0; 1498 zoran_reap_stat_com(zr); 1499 zoran_feed_stat_com(zr); 1500 wake_up_interruptible(&zr->jpg_capq); 1501 } 1502 #endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */ 1503 1504 /* DATERR, too many fields missed, error processing */ 1505 if ((astat & zr->card.jpeg_int) || 1506 zr->JPEG_missed > 25 || 1507 zr->JPEG_error == 1 || 1508 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) && 1509 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) { 1510 error_handler(zr, astat, stat); 1511 } 1512 1513 count++; 1514 if (count > 10) { 1515 dprintk(2, KERN_WARNING "%s: irq loop %d\n", 1516 ZR_DEVNAME(zr), count); 1517 if (count > 20) { 1518 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1519 dprintk(2, 1520 KERN_ERR 1521 "%s: IRQ lockup, cleared int mask\n", 1522 ZR_DEVNAME(zr)); 1523 break; 1524 } 1525 } 1526 zr->last_isr = stat; 1527 } 1528 spin_unlock_irqrestore(&zr->spinlock, flags); 1529 1530 return IRQ_HANDLED; 1531 } 1532 1533 void 1534 zoran_set_pci_master (struct zoran *zr, 1535 int set_master) 1536 { 1537 if (set_master) { 1538 pci_set_master(zr->pci_dev); 1539 } else { 1540 u16 command; 1541 1542 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command); 1543 command &= ~PCI_COMMAND_MASTER; 1544 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command); 1545 } 1546 } 1547 1548 void 1549 zoran_init_hardware (struct zoran *zr) 1550 { 1551 /* Enable bus-mastering */ 1552 zoran_set_pci_master(zr, 1); 1553 1554 /* Initialize the board */ 1555 if (zr->card.init) { 1556 zr->card.init(zr); 1557 } 1558 1559 decoder_call(zr, core, init, 0); 1560 decoder_call(zr, video, s_std, zr->norm); 1561 decoder_call(zr, video, s_routing, 1562 zr->card.input[zr->input].muxsel, 0, 0); 1563 1564 encoder_call(zr, core, init, 0); 1565 encoder_call(zr, video, s_std_output, zr->norm); 1566 encoder_call(zr, video, s_routing, 0, 0, 0); 1567 1568 /* toggle JPEG codec sleep to sync PLL */ 1569 jpeg_codec_sleep(zr, 1); 1570 jpeg_codec_sleep(zr, 0); 1571 1572 /* 1573 * set individual interrupt enables (without GIRQ1) 1574 * but don't global enable until zoran_open() 1575 */ 1576 zr36057_init_vfe(zr); 1577 1578 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1579 1580 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts 1581 } 1582 1583 void 1584 zr36057_restart (struct zoran *zr) 1585 { 1586 btwrite(0, ZR36057_SPGPPCR); 1587 mdelay(1); 1588 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR); 1589 mdelay(1); 1590 1591 /* assert P_Reset */ 1592 btwrite(0, ZR36057_JPC); 1593 /* set up GPIO direction - all output */ 1594 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR); 1595 1596 /* set up GPIO pins and guest bus timing */ 1597 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1); 1598 } 1599 1600 /* 1601 * initialize video front end 1602 */ 1603 1604 static void 1605 zr36057_init_vfe (struct zoran *zr) 1606 { 1607 u32 reg; 1608 1609 reg = btread(ZR36057_VFESPFR); 1610 reg |= ZR36057_VFESPFR_LittleEndian; 1611 reg &= ~ZR36057_VFESPFR_VCLKPol; 1612 reg |= ZR36057_VFESPFR_ExtFl; 1613 reg |= ZR36057_VFESPFR_TopField; 1614 btwrite(reg, ZR36057_VFESPFR); 1615 reg = btread(ZR36057_VDCR); 1616 if (pci_pci_problems & PCIPCI_TRITON) 1617 // || zr->revision < 1) // Revision 1 has also Triton support 1618 reg &= ~ZR36057_VDCR_Triton; 1619 else 1620 reg |= ZR36057_VDCR_Triton; 1621 btwrite(reg, ZR36057_VDCR); 1622 } 1623