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