1/* 2 * Zoran zr36057/zr36067 PCI controller driver, for the 3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux 4 * Media Labs LML33/LML33R10. 5 * 6 * This part handles device access (PCI/I2C/codec/...) 7 * 8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> 9 * 10 * Currently maintained by: 11 * Ronald Bultje <rbultje@ronald.bitfreak.net> 12 * Laurent Pinchart <laurent.pinchart@skynet.be> 13 * Mailinglist <mjpeg-users@lists.sf.net> 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 28 */ 29 30#include <linux/types.h> 31#include <linux/kernel.h> 32#include <linux/module.h> 33#include <linux/vmalloc.h> 34 35#include <linux/interrupt.h> 36#include <linux/proc_fs.h> 37#include <linux/i2c.h> 38#include <linux/i2c-algo-bit.h> 39#include <linux/videodev2.h> 40#include <media/v4l2-common.h> 41#include <linux/spinlock.h> 42#include <linux/sem.h> 43 44#include <linux/pci.h> 45#include <linux/delay.h> 46#include <linux/wait.h> 47 48#include <asm/byteorder.h> 49#include <asm/io.h> 50 51#include "videocodec.h" 52#include "zoran.h" 53#include "zoran_device.h" 54#include "zoran_card.h" 55 56#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \ 57 ZR36057_ISR_GIRQ1 | \ 58 ZR36057_ISR_JPEGRepIRQ ) 59 60static bool lml33dpath; /* default = 0 61 * 1 will use digital path in capture 62 * mode instead of analog. It can be 63 * used for picture adjustments using 64 * tool like xawtv while watching image 65 * on TV monitor connected to the output. 66 * However, due to absence of 75 Ohm 67 * load on Bt819 input, there will be 68 * some image imperfections */ 69 70module_param(lml33dpath, bool, 0644); 71MODULE_PARM_DESC(lml33dpath, 72 "Use digital path capture mode (on LML33 cards)"); 73 74static void 75zr36057_init_vfe (struct zoran *zr); 76 77/* 78 * General Purpose I/O and Guest bus access 79 */ 80 81/* 82 * This is a bit tricky. When a board lacks a GPIO function, the corresponding 83 * GPIO bit number in the card_info structure is set to 0. 84 */ 85 86void 87GPIO (struct zoran *zr, 88 int bit, 89 unsigned int value) 90{ 91 u32 reg; 92 u32 mask; 93 94 /* Make sure the bit number is legal 95 * A bit number of -1 (lacking) gives a mask of 0, 96 * making it harmless */ 97 mask = (1 << (24 + bit)) & 0xff000000; 98 reg = btread(ZR36057_GPPGCR1) & ~mask; 99 if (value) { 100 reg |= mask; 101 } 102 btwrite(reg, ZR36057_GPPGCR1); 103 udelay(1); 104} 105 106/* 107 * Wait til post office is no longer busy 108 */ 109 110int 111post_office_wait (struct zoran *zr) 112{ 113 u32 por; 114 115// while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) { 116 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) { 117 /* wait for something to happen */ 118 } 119 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) { 120 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */ 121 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr), 122 por); 123 return -1; 124 } 125 126 return 0; 127} 128 129int 130post_office_write (struct zoran *zr, 131 unsigned int guest, 132 unsigned int reg, 133 unsigned int value) 134{ 135 u32 por; 136 137 por = 138 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | 139 ((reg & 7) << 16) | (value & 0xFF); 140 btwrite(por, ZR36057_POR); 141 142 return post_office_wait(zr); 143} 144 145int 146post_office_read (struct zoran *zr, 147 unsigned int guest, 148 unsigned int reg) 149{ 150 u32 por; 151 152 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16); 153 btwrite(por, ZR36057_POR); 154 if (post_office_wait(zr) < 0) { 155 return -1; 156 } 157 158 return btread(ZR36057_POR) & 0xFF; 159} 160 161/* 162 * detect guests 163 */ 164 165static void 166dump_guests (struct zoran *zr) 167{ 168 if (zr36067_debug > 2) { 169 int i, guest[8]; 170 171 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 172 guest[i] = post_office_read(zr, i, 0); 173 } 174 175 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 176 177 for (i = 1; i < 8; i++) { 178 printk(" 0x%02x", guest[i]); 179 } 180 printk("\n"); 181 } 182} 183 184static inline unsigned long 185get_time (void) 186{ 187 struct timeval tv; 188 189 do_gettimeofday(&tv); 190 return (1000000 * tv.tv_sec + tv.tv_usec); 191} 192 193void 194detect_guest_activity (struct zoran *zr) 195{ 196 int timeout, i, j, res, guest[8], guest0[8], change[8][3]; 197 unsigned long t0, t1; 198 199 dump_guests(zr); 200 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n", 201 ZR_DEVNAME(zr)); 202 for (i = 1; i < 8; i++) { // Don't read jpeg codec here 203 guest0[i] = guest[i] = post_office_read(zr, i, 0); 204 } 205 206 timeout = 0; 207 j = 0; 208 t0 = get_time(); 209 while (timeout < 10000) { 210 udelay(10); 211 timeout++; 212 for (i = 1; (i < 8) && (j < 8); i++) { 213 res = post_office_read(zr, i, 0); 214 if (res != guest[i]) { 215 t1 = get_time(); 216 change[j][0] = (t1 - t0); 217 t0 = t1; 218 change[j][1] = i; 219 change[j][2] = res; 220 j++; 221 guest[i] = res; 222 } 223 } 224 if (j >= 8) 225 break; 226 } 227 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr)); 228 229 for (i = 1; i < 8; i++) { 230 printk(" 0x%02x", guest0[i]); 231 } 232 printk("\n"); 233 if (j == 0) { 234 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr)); 235 return; 236 } 237 for (i = 0; i < j; i++) { 238 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr), 239 change[i][0], change[i][1], change[i][2]); 240 } 241} 242 243/* 244 * JPEG Codec access 245 */ 246 247void 248jpeg_codec_sleep (struct zoran *zr, 249 int sleep) 250{ 251 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep); 252 if (!sleep) { 253 dprintk(3, 254 KERN_DEBUG 255 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n", 256 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 257 udelay(500); 258 } else { 259 dprintk(3, 260 KERN_DEBUG 261 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n", 262 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1)); 263 udelay(2); 264 } 265} 266 267int 268jpeg_codec_reset (struct zoran *zr) 269{ 270 /* Take the codec out of sleep */ 271 jpeg_codec_sleep(zr, 0); 272 273 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) { 274 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0, 275 0); 276 udelay(2); 277 } else { 278 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0); 279 udelay(2); 280 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1); 281 udelay(2); 282 } 283 284 return 0; 285} 286 287/* 288 * Set the registers for the size we have specified. Don't bother 289 * trying to understand this without the ZR36057 manual in front of 290 * you [AC]. 291 * 292 * PS: The manual is free for download in .pdf format from 293 * www.zoran.com - nicely done those folks. 294 */ 295 296static void 297zr36057_adjust_vfe (struct zoran *zr, 298 enum zoran_codec_mode mode) 299{ 300 u32 reg; 301 302 switch (mode) { 303 case BUZ_MODE_MOTION_DECOMPRESS: 304 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 305 reg = btread(ZR36057_VFEHCR); 306 if ((reg & (1 << 10)) && zr->card.type != LML33R10) { 307 reg += ((1 << 10) | 1); 308 } 309 btwrite(reg, ZR36057_VFEHCR); 310 break; 311 case BUZ_MODE_MOTION_COMPRESS: 312 case BUZ_MODE_IDLE: 313 default: 314 if ((zr->norm & V4L2_STD_NTSC) || 315 (zr->card.type == LML33R10 && 316 (zr->norm & V4L2_STD_PAL))) 317 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 318 else 319 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR); 320 reg = btread(ZR36057_VFEHCR); 321 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) { 322 reg -= ((1 << 10) | 1); 323 } 324 btwrite(reg, ZR36057_VFEHCR); 325 break; 326 } 327} 328 329/* 330 * set geometry 331 */ 332 333static void 334zr36057_set_vfe (struct zoran *zr, 335 int video_width, 336 int video_height, 337 const struct zoran_format *format) 338{ 339 struct tvnorm *tvn; 340 unsigned HStart, HEnd, VStart, VEnd; 341 unsigned DispMode; 342 unsigned VidWinWid, VidWinHt; 343 unsigned hcrop1, hcrop2, vcrop1, vcrop2; 344 unsigned Wa, We, Ha, He; 345 unsigned X, Y, HorDcm, VerDcm; 346 u32 reg; 347 unsigned mask_line_size; 348 349 tvn = zr->timing; 350 351 Wa = tvn->Wa; 352 Ha = tvn->Ha; 353 354 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n", 355 ZR_DEVNAME(zr), video_width, video_height); 356 357 if (video_width < BUZ_MIN_WIDTH || 358 video_height < BUZ_MIN_HEIGHT || 359 video_width > Wa || video_height > Ha) { 360 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", 361 ZR_DEVNAME(zr), video_width, video_height); 362 return; 363 } 364 365 /**** zr36057 ****/ 366 367 /* horizontal */ 368 VidWinWid = video_width; 369 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa); 370 We = (VidWinWid * 64) / X; 371 HorDcm = 64 - X; 372 hcrop1 = 2 * ((tvn->Wa - We) / 4); 373 hcrop2 = tvn->Wa - We - hcrop1; 374 HStart = tvn->HStart ? tvn->HStart : 1; 375 /* (Ronald) Original comment: 376 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+" 377 * this is false. It inverses chroma values on the LML33R10 (so Cr 378 * suddenly is shown as Cb and reverse, really cool effect if you 379 * want to see blue faces, not useful otherwise). So don't use |1. 380 * However, the DC10 has '0' as HStart, but does need |1, so we 381 * use a dirty check... 382 */ 383 HEnd = HStart + tvn->Wa - 1; 384 HStart += hcrop1; 385 HEnd -= hcrop2; 386 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart) 387 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd); 388 if (zr->card.vfe_pol.hsync_pol) 389 reg |= ZR36057_VFEHCR_HSPol; 390 btwrite(reg, ZR36057_VFEHCR); 391 392 /* Vertical */ 393 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2); 394 VidWinHt = DispMode ? video_height : video_height / 2; 395 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha); 396 He = (VidWinHt * 64) / Y; 397 VerDcm = 64 - Y; 398 vcrop1 = (tvn->Ha / 2 - He) / 2; 399 vcrop2 = tvn->Ha / 2 - He - vcrop1; 400 VStart = tvn->VStart; 401 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP 402 VStart += vcrop1; 403 VEnd -= vcrop2; 404 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart) 405 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd); 406 if (zr->card.vfe_pol.vsync_pol) 407 reg |= ZR36057_VFEVCR_VSPol; 408 btwrite(reg, ZR36057_VFEVCR); 409 410 /* scaler and pixel format */ 411 reg = 0; 412 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); 413 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); 414 reg |= (DispMode << ZR36057_VFESPFR_DispMode); 415 /* RJ: I don't know, why the following has to be the opposite 416 * of the corresponding ZR36060 setting, but only this way 417 * we get the correct colors when uncompressing to the screen */ 418 //reg |= ZR36057_VFESPFR_VCLKPol; /**/ 419 /* RJ: Don't know if that is needed for NTSC also */ 420 if (!(zr->norm & V4L2_STD_NTSC)) 421 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang 422 reg |= ZR36057_VFESPFR_TopField; 423 if (HorDcm >= 48) { 424 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ 425 } else if (HorDcm >= 32) { 426 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */ 427 } else if (HorDcm >= 16) { 428 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ 429 } 430 reg |= format->vfespfr; 431 btwrite(reg, ZR36057_VFESPFR); 432 433 /* display configuration */ 434 reg = (16 << ZR36057_VDCR_MinPix) 435 | (VidWinHt << ZR36057_VDCR_VidWinHt) 436 | (VidWinWid << ZR36057_VDCR_VidWinWid); 437 if (pci_pci_problems & PCIPCI_TRITON) 438 // || zr->revision < 1) // Revision 1 has also Triton support 439 reg &= ~ZR36057_VDCR_Triton; 440 else 441 reg |= ZR36057_VDCR_Triton; 442 btwrite(reg, ZR36057_VDCR); 443 444 /* (Ronald) don't write this if overlay_mask = NULL */ 445 if (zr->overlay_mask) { 446 /* Write overlay clipping mask data, but don't enable overlay clipping */ 447 /* RJ: since this makes only sense on the screen, we use 448 * zr->overlay_settings.width instead of video_width */ 449 450 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 451 reg = virt_to_bus(zr->overlay_mask); 452 btwrite(reg, ZR36057_MMTR); 453 reg = virt_to_bus(zr->overlay_mask + mask_line_size); 454 btwrite(reg, ZR36057_MMBR); 455 reg = 456 mask_line_size - (zr->overlay_settings.width + 457 31) / 32; 458 if (DispMode == 0) 459 reg += mask_line_size; 460 reg <<= ZR36057_OCR_MaskStride; 461 btwrite(reg, ZR36057_OCR); 462 } 463 464 zr36057_adjust_vfe(zr, zr->codec_mode); 465} 466 467/* 468 * Switch overlay on or off 469 */ 470 471void 472zr36057_overlay (struct zoran *zr, 473 int on) 474{ 475 u32 reg; 476 477 if (on) { 478 /* do the necessary settings ... */ 479 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */ 480 481 zr36057_set_vfe(zr, 482 zr->overlay_settings.width, 483 zr->overlay_settings.height, 484 zr->overlay_settings.format); 485 486 /* Start and length of each line MUST be 4-byte aligned. 487 * This should be already checked before the call to this routine. 488 * All error messages are internal driver checking only! */ 489 490 /* video display top and bottom registers */ 491 reg = (long) zr->vbuf_base + 492 zr->overlay_settings.x * 493 ((zr->overlay_settings.format->depth + 7) / 8) + 494 zr->overlay_settings.y * 495 zr->vbuf_bytesperline; 496 btwrite(reg, ZR36057_VDTR); 497 if (reg & 3) 498 dprintk(1, 499 KERN_ERR 500 "%s: zr36057_overlay() - video_address not aligned\n", 501 ZR_DEVNAME(zr)); 502 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 503 reg += zr->vbuf_bytesperline; 504 btwrite(reg, ZR36057_VDBR); 505 506 /* video stride, status, and frame grab register */ 507 reg = zr->vbuf_bytesperline - 508 zr->overlay_settings.width * 509 ((zr->overlay_settings.format->depth + 7) / 8); 510 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) 511 reg += zr->vbuf_bytesperline; 512 if (reg & 3) 513 dprintk(1, 514 KERN_ERR 515 "%s: zr36057_overlay() - video_stride not aligned\n", 516 ZR_DEVNAME(zr)); 517 reg = (reg << ZR36057_VSSFGR_DispStride); 518 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */ 519 btwrite(reg, ZR36057_VSSFGR); 520 521 /* Set overlay clipping */ 522 if (zr->overlay_settings.clipcount > 0) 523 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR); 524 525 /* ... and switch it on */ 526 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR); 527 } else { 528 /* Switch it off */ 529 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 530 } 531} 532 533/* 534 * The overlay mask has one bit for each pixel on a scan line, 535 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels. 536 */ 537 538void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count) 539{ 540 struct zoran *zr = fh->zr; 541 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32; 542 u32 *mask; 543 int x, y, width, height; 544 unsigned i, j, k; 545 u32 reg; 546 547 /* fill mask with one bits */ 548 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); 549 reg = 0; 550 551 for (i = 0; i < count; ++i) { 552 /* pick up local copy of clip */ 553 x = vp[i].c.left; 554 y = vp[i].c.top; 555 width = vp[i].c.width; 556 height = vp[i].c.height; 557 558 /* trim clips that extend beyond the window */ 559 if (x < 0) { 560 width += x; 561 x = 0; 562 } 563 if (y < 0) { 564 height += y; 565 y = 0; 566 } 567 if (x + width > fh->overlay_settings.width) { 568 width = fh->overlay_settings.width - x; 569 } 570 if (y + height > fh->overlay_settings.height) { 571 height = fh->overlay_settings.height - y; 572 } 573 574 /* ignore degenerate clips */ 575 if (height <= 0) { 576 continue; 577 } 578 if (width <= 0) { 579 continue; 580 } 581 582 /* apply clip for each scan line */ 583 for (j = 0; j < height; ++j) { 584 /* reset bit for each pixel */ 585 /* this can be optimized later if need be */ 586 mask = fh->overlay_mask + (y + j) * mask_line_size; 587 for (k = 0; k < width; ++k) { 588 mask[(x + k) / 32] &= 589 ~((u32) 1 << (x + k) % 32); 590 } 591 } 592 } 593} 594 595/* Enable/Disable uncompressed memory grabbing of the 36057 */ 596 597void 598zr36057_set_memgrab (struct zoran *zr, 599 int mode) 600{ 601 if (mode) { 602 /* We only check SnapShot and not FrameGrab here. SnapShot==1 603 * means a capture is already in progress, but FrameGrab==1 604 * doesn't necessary mean that. It's more correct to say a 1 605 * to 0 transition indicates a capture completed. If a 606 * capture is pending when capturing is tuned off, FrameGrab 607 * will be stuck at 1 until capturing is turned back on. 608 */ 609 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) 610 dprintk(1, 611 KERN_WARNING 612 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n", 613 ZR_DEVNAME(zr)); 614 615 /* switch on VSync interrupts */ 616 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts 617 btor(zr->card.vsync_int, ZR36057_ICR); // SW 618 619 /* enable SnapShot */ 620 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 621 622 /* Set zr36057 video front end and enable video */ 623 zr36057_set_vfe(zr, zr->v4l_settings.width, 624 zr->v4l_settings.height, 625 zr->v4l_settings.format); 626 627 zr->v4l_memgrab_active = 1; 628 } else { 629 /* switch off VSync interrupts */ 630 btand(~zr->card.vsync_int, ZR36057_ICR); // SW 631 632 zr->v4l_memgrab_active = 0; 633 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 634 635 /* reenable grabbing to screen if it was running */ 636 if (zr->v4l_overlay_active) { 637 zr36057_overlay(zr, 1); 638 } else { 639 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); 640 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR); 641 } 642 } 643} 644 645int 646wait_grab_pending (struct zoran *zr) 647{ 648 unsigned long flags; 649 650 /* wait until all pending grabs are finished */ 651 652 if (!zr->v4l_memgrab_active) 653 return 0; 654 655 wait_event_interruptible(zr->v4l_capq, 656 (zr->v4l_pend_tail == zr->v4l_pend_head)); 657 if (signal_pending(current)) 658 return -ERESTARTSYS; 659 660 spin_lock_irqsave(&zr->spinlock, flags); 661 zr36057_set_memgrab(zr, 0); 662 spin_unlock_irqrestore(&zr->spinlock, flags); 663 664 return 0; 665} 666 667/***************************************************************************** 668 * * 669 * Set up the Buz-specific MJPEG part * 670 * * 671 *****************************************************************************/ 672 673static inline void 674set_frame (struct zoran *zr, 675 int val) 676{ 677 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val); 678} 679 680static void 681set_videobus_dir (struct zoran *zr, 682 int val) 683{ 684 switch (zr->card.type) { 685 case LML33: 686 case LML33R10: 687 if (lml33dpath == 0) 688 GPIO(zr, 5, val); 689 else 690 GPIO(zr, 5, 1); 691 break; 692 default: 693 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR], 694 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val); 695 break; 696 } 697} 698 699static void 700init_jpeg_queue (struct zoran *zr) 701{ 702 int i; 703 704 /* re-initialize DMA ring stuff */ 705 zr->jpg_que_head = 0; 706 zr->jpg_dma_head = 0; 707 zr->jpg_dma_tail = 0; 708 zr->jpg_que_tail = 0; 709 zr->jpg_seq_num = 0; 710 zr->JPEG_error = 0; 711 zr->num_errors = 0; 712 zr->jpg_err_seq = 0; 713 zr->jpg_err_shift = 0; 714 zr->jpg_queued_num = 0; 715 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 716 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 717 } 718 for (i = 0; i < BUZ_NUM_STAT_COM; i++) { 719 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */ 720 } 721} 722 723static void 724zr36057_set_jpg (struct zoran *zr, 725 enum zoran_codec_mode mode) 726{ 727 struct tvnorm *tvn; 728 u32 reg; 729 730 tvn = zr->timing; 731 732 /* assert P_Reset, disable code transfer, deassert Active */ 733 btwrite(0, ZR36057_JPC); 734 735 /* MJPEG compression mode */ 736 switch (mode) { 737 738 case BUZ_MODE_MOTION_COMPRESS: 739 default: 740 reg = ZR36057_JMC_MJPGCmpMode; 741 break; 742 743 case BUZ_MODE_MOTION_DECOMPRESS: 744 reg = ZR36057_JMC_MJPGExpMode; 745 reg |= ZR36057_JMC_SyncMstr; 746 /* RJ: The following is experimental - improves the output to screen */ 747 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM 748 break; 749 750 case BUZ_MODE_STILL_COMPRESS: 751 reg = ZR36057_JMC_JPGCmpMode; 752 break; 753 754 case BUZ_MODE_STILL_DECOMPRESS: 755 reg = ZR36057_JMC_JPGExpMode; 756 break; 757 758 } 759 reg |= ZR36057_JMC_JPG; 760 if (zr->jpg_settings.field_per_buff == 1) 761 reg |= ZR36057_JMC_Fld_per_buff; 762 btwrite(reg, ZR36057_JMC); 763 764 /* vertical */ 765 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR); 766 reg = (6 << ZR36057_VSP_VsyncSize) | 767 (tvn->Ht << ZR36057_VSP_FrmTot); 768 btwrite(reg, ZR36057_VSP); 769 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) | 770 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY); 771 btwrite(reg, ZR36057_FVAP); 772 773 /* horizontal */ 774 if (zr->card.vfe_pol.hsync_pol) 775 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 776 else 777 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR); 778 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) | 779 (tvn->Wt << ZR36057_HSP_LineTot); 780 btwrite(reg, ZR36057_HSP); 781 reg = ((zr->jpg_settings.img_x + 782 tvn->HStart + 4) << ZR36057_FHAP_NAX) | 783 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX); 784 btwrite(reg, ZR36057_FHAP); 785 786 /* field process parameters */ 787 if (zr->jpg_settings.odd_even) 788 reg = ZR36057_FPP_Odd_Even; 789 else 790 reg = 0; 791 792 btwrite(reg, ZR36057_FPP); 793 794 /* Set proper VCLK Polarity, else colors will be wrong during playback */ 795 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR); 796 797 /* code base address */ 798 reg = virt_to_bus(zr->stat_com); 799 btwrite(reg, ZR36057_JCBA); 800 801 /* FIFO threshold (FIFO is 160. double words) */ 802 /* NOTE: decimal values here */ 803 switch (mode) { 804 805 case BUZ_MODE_STILL_COMPRESS: 806 case BUZ_MODE_MOTION_COMPRESS: 807 if (zr->card.type != BUZ) 808 reg = 140; 809 else 810 reg = 60; 811 break; 812 813 case BUZ_MODE_STILL_DECOMPRESS: 814 case BUZ_MODE_MOTION_DECOMPRESS: 815 reg = 20; 816 break; 817 818 default: 819 reg = 80; 820 break; 821 822 } 823 btwrite(reg, ZR36057_JCFT); 824 zr36057_adjust_vfe(zr, mode); 825 826} 827 828void 829print_interrupts (struct zoran *zr) 830{ 831 int res, noerr = 0; 832 833 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr)); 834 if ((res = zr->field_counter) < -1 || res > 1) { 835 printk(" FD:%d", res); 836 } 837 if ((res = zr->intr_counter_GIRQ1) != 0) { 838 printk(" GIRQ1:%d", res); 839 noerr++; 840 } 841 if ((res = zr->intr_counter_GIRQ0) != 0) { 842 printk(" GIRQ0:%d", res); 843 noerr++; 844 } 845 if ((res = zr->intr_counter_CodRepIRQ) != 0) { 846 printk(" CodRepIRQ:%d", res); 847 noerr++; 848 } 849 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) { 850 printk(" JPEGRepIRQ:%d", res); 851 noerr++; 852 } 853 if (zr->JPEG_max_missed) { 854 printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed, 855 zr->JPEG_min_missed); 856 } 857 if (zr->END_event_missed) { 858 printk(" ENDs missed: %d", zr->END_event_missed); 859 } 860 //if (zr->jpg_queued_num) { 861 printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail, 862 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head); 863 //} 864 if (!noerr) { 865 printk(": no interrupts detected."); 866 } 867 printk("\n"); 868} 869 870void 871clear_interrupt_counters (struct zoran *zr) 872{ 873 zr->intr_counter_GIRQ1 = 0; 874 zr->intr_counter_GIRQ0 = 0; 875 zr->intr_counter_CodRepIRQ = 0; 876 zr->intr_counter_JPEGRepIRQ = 0; 877 zr->field_counter = 0; 878 zr->IRQ1_in = 0; 879 zr->IRQ1_out = 0; 880 zr->JPEG_in = 0; 881 zr->JPEG_out = 0; 882 zr->JPEG_0 = 0; 883 zr->JPEG_1 = 0; 884 zr->END_event_missed = 0; 885 zr->JPEG_missed = 0; 886 zr->JPEG_max_missed = 0; 887 zr->JPEG_min_missed = 0x7fffffff; 888} 889 890static u32 891count_reset_interrupt (struct zoran *zr) 892{ 893 u32 isr; 894 895 if ((isr = btread(ZR36057_ISR) & 0x78000000)) { 896 if (isr & ZR36057_ISR_GIRQ1) { 897 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR); 898 zr->intr_counter_GIRQ1++; 899 } 900 if (isr & ZR36057_ISR_GIRQ0) { 901 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR); 902 zr->intr_counter_GIRQ0++; 903 } 904 if (isr & ZR36057_ISR_CodRepIRQ) { 905 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR); 906 zr->intr_counter_CodRepIRQ++; 907 } 908 if (isr & ZR36057_ISR_JPEGRepIRQ) { 909 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR); 910 zr->intr_counter_JPEGRepIRQ++; 911 } 912 } 913 return isr; 914} 915 916void 917jpeg_start (struct zoran *zr) 918{ 919 int reg; 920 921 zr->frame_num = 0; 922 923 /* deassert P_reset, disable code transfer, deassert Active */ 924 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC); 925 /* stop flushing the internal code buffer */ 926 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 927 /* enable code transfer */ 928 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC); 929 930 /* clear IRQs */ 931 btwrite(IRQ_MASK, ZR36057_ISR); 932 /* enable the JPEG IRQs */ 933 btwrite(zr->card.jpeg_int | 934 ZR36057_ICR_JPEGRepIRQ | 935 ZR36057_ICR_IntPinEn, 936 ZR36057_ICR); 937 938 set_frame(zr, 0); // \FRAME 939 940 /* set the JPEG codec guest ID */ 941 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) | 942 (0 << ZR36057_JCGI_JPEGuestReg); 943 btwrite(reg, ZR36057_JCGI); 944 945 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 && 946 zr->card.video_codec == CODEC_TYPE_ZR36050) { 947 /* Enable processing on the ZR36016 */ 948 if (zr->vfe) 949 zr36016_write(zr->vfe, 0, 1); 950 951 /* load the address of the GO register in the ZR36050 latch */ 952 post_office_write(zr, 0, 0, 0); 953 } 954 955 /* assert Active */ 956 btor(ZR36057_JPC_Active, ZR36057_JPC); 957 958 /* enable the Go generation */ 959 btor(ZR36057_JMC_Go_en, ZR36057_JMC); 960 udelay(30); 961 962 set_frame(zr, 1); // /FRAME 963 964 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr)); 965} 966 967void 968zr36057_enable_jpg (struct zoran *zr, 969 enum zoran_codec_mode mode) 970{ 971 struct vfe_settings cap; 972 int field_size = 973 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff; 974 975 zr->codec_mode = mode; 976 977 cap.x = zr->jpg_settings.img_x; 978 cap.y = zr->jpg_settings.img_y; 979 cap.width = zr->jpg_settings.img_width; 980 cap.height = zr->jpg_settings.img_height; 981 cap.decimation = 982 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8); 983 cap.quality = zr->jpg_settings.jpg_comp.quality; 984 985 switch (mode) { 986 987 case BUZ_MODE_MOTION_COMPRESS: { 988 struct jpeg_app_marker app; 989 struct jpeg_com_marker com; 990 991 /* In motion compress mode, the decoder output must be enabled, and 992 * the video bus direction set to input. 993 */ 994 set_videobus_dir(zr, 0); 995 decoder_call(zr, video, s_stream, 1); 996 encoder_call(zr, video, s_routing, 0, 0, 0); 997 998 /* Take the JPEG codec and the VFE out of sleep */ 999 jpeg_codec_sleep(zr, 0); 1000 1001 /* set JPEG app/com marker */ 1002 app.appn = zr->jpg_settings.jpg_comp.APPn; 1003 app.len = zr->jpg_settings.jpg_comp.APP_len; 1004 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60); 1005 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA, 1006 sizeof(struct jpeg_app_marker), &app); 1007 1008 com.len = zr->jpg_settings.jpg_comp.COM_len; 1009 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60); 1010 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA, 1011 sizeof(struct jpeg_com_marker), &com); 1012 1013 /* Setup the JPEG codec */ 1014 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE, 1015 sizeof(int), &field_size); 1016 zr->codec->set_video(zr->codec, zr->timing, &cap, 1017 &zr->card.vfe_pol); 1018 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION); 1019 1020 /* Setup the VFE */ 1021 if (zr->vfe) { 1022 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE, 1023 sizeof(int), &field_size); 1024 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1025 &zr->card.vfe_pol); 1026 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION); 1027 } 1028 1029 init_jpeg_queue(zr); 1030 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1031 1032 clear_interrupt_counters(zr); 1033 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n", 1034 ZR_DEVNAME(zr)); 1035 break; 1036 } 1037 1038 case BUZ_MODE_MOTION_DECOMPRESS: 1039 /* In motion decompression mode, the decoder output must be disabled, and 1040 * the video bus direction set to output. 1041 */ 1042 decoder_call(zr, video, s_stream, 0); 1043 set_videobus_dir(zr, 1); 1044 encoder_call(zr, video, s_routing, 1, 0, 0); 1045 1046 /* Take the JPEG codec and the VFE out of sleep */ 1047 jpeg_codec_sleep(zr, 0); 1048 /* Setup the VFE */ 1049 if (zr->vfe) { 1050 zr->vfe->set_video(zr->vfe, zr->timing, &cap, 1051 &zr->card.vfe_pol); 1052 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION); 1053 } 1054 /* Setup the JPEG codec */ 1055 zr->codec->set_video(zr->codec, zr->timing, &cap, 1056 &zr->card.vfe_pol); 1057 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION); 1058 1059 init_jpeg_queue(zr); 1060 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO 1061 1062 clear_interrupt_counters(zr); 1063 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n", 1064 ZR_DEVNAME(zr)); 1065 break; 1066 1067 case BUZ_MODE_IDLE: 1068 default: 1069 /* shut down processing */ 1070 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ), 1071 ZR36057_ICR); 1072 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ, 1073 ZR36057_ISR); 1074 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en 1075 1076 msleep(50); 1077 1078 set_videobus_dir(zr, 0); 1079 set_frame(zr, 1); // /FRAME 1080 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush 1081 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active 1082 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC); 1083 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC); 1084 jpeg_codec_reset(zr); 1085 jpeg_codec_sleep(zr, 1); 1086 zr36057_adjust_vfe(zr, mode); 1087 1088 decoder_call(zr, video, s_stream, 1); 1089 encoder_call(zr, video, s_routing, 0, 0, 0); 1090 1091 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr)); 1092 break; 1093 1094 } 1095} 1096 1097/* when this is called the spinlock must be held */ 1098void 1099zoran_feed_stat_com (struct zoran *zr) 1100{ 1101 /* move frames from pending queue to DMA */ 1102 1103 int frame, i, max_stat_com; 1104 1105 max_stat_com = 1106 (zr->jpg_settings.TmpDcm == 1107 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1); 1108 1109 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com && 1110 zr->jpg_dma_head < zr->jpg_que_head) { 1111 1112 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME]; 1113 if (zr->jpg_settings.TmpDcm == 1) { 1114 /* fill 1 stat_com entry */ 1115 i = (zr->jpg_dma_head - 1116 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1117 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1118 break; 1119 zr->stat_com[i] = 1120 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1121 } else { 1122 /* fill 2 stat_com entries */ 1123 i = ((zr->jpg_dma_head - 1124 zr->jpg_err_shift) & 1) * 2; 1125 if (!(zr->stat_com[i] & cpu_to_le32(1))) 1126 break; 1127 zr->stat_com[i] = 1128 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1129 zr->stat_com[i + 1] = 1130 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus); 1131 } 1132 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA; 1133 zr->jpg_dma_head++; 1134 1135 } 1136 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) 1137 zr->jpg_queued_num++; 1138} 1139 1140/* when this is called the spinlock must be held */ 1141static void 1142zoran_reap_stat_com (struct zoran *zr) 1143{ 1144 /* move frames from DMA queue to done queue */ 1145 1146 int i; 1147 u32 stat_com; 1148 unsigned int seq; 1149 unsigned int dif; 1150 struct zoran_buffer *buffer; 1151 int frame; 1152 1153 /* In motion decompress we don't have a hardware frame counter, 1154 * we just count the interrupts here */ 1155 1156 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1157 zr->jpg_seq_num++; 1158 } 1159 while (zr->jpg_dma_tail < zr->jpg_dma_head) { 1160 if (zr->jpg_settings.TmpDcm == 1) 1161 i = (zr->jpg_dma_tail - 1162 zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1163 else 1164 i = ((zr->jpg_dma_tail - 1165 zr->jpg_err_shift) & 1) * 2 + 1; 1166 1167 stat_com = le32_to_cpu(zr->stat_com[i]); 1168 1169 if ((stat_com & 1) == 0) { 1170 return; 1171 } 1172 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1173 buffer = &zr->jpg_buffers.buffer[frame]; 1174 do_gettimeofday(&buffer->bs.timestamp); 1175 1176 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1177 buffer->bs.length = (stat_com & 0x7fffff) >> 1; 1178 1179 /* update sequence number with the help of the counter in stat_com */ 1180 1181 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff; 1182 dif = (seq - zr->jpg_seq_num) & 0xff; 1183 zr->jpg_seq_num += dif; 1184 } else { 1185 buffer->bs.length = 0; 1186 } 1187 buffer->bs.seq = 1188 zr->jpg_settings.TmpDcm == 1189 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num; 1190 buffer->state = BUZ_STATE_DONE; 1191 1192 zr->jpg_dma_tail++; 1193 } 1194} 1195 1196static void zoran_restart(struct zoran *zr) 1197{ 1198 /* Now the stat_comm buffer is ready for restart */ 1199 unsigned int status = 0; 1200 int mode; 1201 1202 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1203 decoder_call(zr, video, g_input_status, &status); 1204 mode = CODEC_DO_COMPRESSION; 1205 } else { 1206 status = V4L2_IN_ST_NO_SIGNAL; 1207 mode = CODEC_DO_EXPANSION; 1208 } 1209 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1210 !(status & V4L2_IN_ST_NO_SIGNAL)) { 1211 /********** RESTART code *************/ 1212 jpeg_codec_reset(zr); 1213 zr->codec->set_mode(zr->codec, mode); 1214 zr36057_set_jpg(zr, zr->codec_mode); 1215 jpeg_start(zr); 1216 1217 if (zr->num_errors <= 8) 1218 dprintk(2, KERN_INFO "%s: Restart\n", 1219 ZR_DEVNAME(zr)); 1220 1221 zr->JPEG_missed = 0; 1222 zr->JPEG_error = 2; 1223 /********** End RESTART code ***********/ 1224 } 1225} 1226 1227static void 1228error_handler (struct zoran *zr, 1229 u32 astat, 1230 u32 stat) 1231{ 1232 int i; 1233 1234 /* This is JPEG error handling part */ 1235 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS && 1236 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) { 1237 return; 1238 } 1239 1240 if ((stat & 1) == 0 && 1241 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS && 1242 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) { 1243 /* No free buffers... */ 1244 zoran_reap_stat_com(zr); 1245 zoran_feed_stat_com(zr); 1246 wake_up_interruptible(&zr->jpg_capq); 1247 zr->JPEG_missed = 0; 1248 return; 1249 } 1250 1251 if (zr->JPEG_error == 1) { 1252 zoran_restart(zr); 1253 return; 1254 } 1255 1256 /* 1257 * First entry: error just happened during normal operation 1258 * 1259 * In BUZ_MODE_MOTION_COMPRESS: 1260 * 1261 * Possible glitch in TV signal. In this case we should 1262 * stop the codec and wait for good quality signal before 1263 * restarting it to avoid further problems 1264 * 1265 * In BUZ_MODE_MOTION_DECOMPRESS: 1266 * 1267 * Bad JPEG frame: we have to mark it as processed (codec crashed 1268 * and was not able to do it itself), and to remove it from queue. 1269 */ 1270 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 1271 udelay(1); 1272 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8; 1273 btwrite(0, ZR36057_JPC); 1274 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); 1275 jpeg_codec_reset(zr); 1276 jpeg_codec_sleep(zr, 1); 1277 zr->JPEG_error = 1; 1278 zr->num_errors++; 1279 1280 /* Report error */ 1281 if (zr36067_debug > 1 && zr->num_errors <= 8) { 1282 long frame; 1283 int j; 1284 1285 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME]; 1286 printk(KERN_ERR 1287 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ", 1288 ZR_DEVNAME(zr), stat, zr->last_isr, 1289 zr->jpg_que_tail, zr->jpg_dma_tail, 1290 zr->jpg_dma_head, zr->jpg_que_head, 1291 zr->jpg_seq_num, frame); 1292 printk(KERN_INFO "stat_com frames:"); 1293 for (j = 0; j < BUZ_NUM_STAT_COM; j++) { 1294 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) { 1295 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus) 1296 printk(KERN_CONT "% d->%d", j, i); 1297 } 1298 } 1299 printk(KERN_CONT "\n"); 1300 } 1301 /* Find an entry in stat_com and rotate contents */ 1302 if (zr->jpg_settings.TmpDcm == 1) 1303 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1304 else 1305 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1306 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) { 1307 /* Mimic zr36067 operation */ 1308 zr->stat_com[i] |= cpu_to_le32(1); 1309 if (zr->jpg_settings.TmpDcm != 1) 1310 zr->stat_com[i + 1] |= cpu_to_le32(1); 1311 /* Refill */ 1312 zoran_reap_stat_com(zr); 1313 zoran_feed_stat_com(zr); 1314 wake_up_interruptible(&zr->jpg_capq); 1315 /* Find an entry in stat_com again after refill */ 1316 if (zr->jpg_settings.TmpDcm == 1) 1317 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM; 1318 else 1319 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2; 1320 } 1321 if (i) { 1322 /* Rotate stat_comm entries to make current entry first */ 1323 int j; 1324 __le32 bus_addr[BUZ_NUM_STAT_COM]; 1325 1326 /* Here we are copying the stat_com array, which 1327 * is already in little endian format, so 1328 * no endian conversions here 1329 */ 1330 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr)); 1331 1332 for (j = 0; j < BUZ_NUM_STAT_COM; j++) 1333 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM]; 1334 1335 zr->jpg_err_shift += i; 1336 zr->jpg_err_shift &= BUZ_MASK_STAT_COM; 1337 } 1338 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) 1339 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */ 1340 zoran_restart(zr); 1341} 1342 1343irqreturn_t 1344zoran_irq (int irq, 1345 void *dev_id) 1346{ 1347 u32 stat, astat; 1348 int count; 1349 struct zoran *zr; 1350 unsigned long flags; 1351 1352 zr = dev_id; 1353 count = 0; 1354 1355 if (zr->testing) { 1356 /* Testing interrupts */ 1357 spin_lock_irqsave(&zr->spinlock, flags); 1358 while ((stat = count_reset_interrupt(zr))) { 1359 if (count++ > 100) { 1360 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1361 dprintk(1, 1362 KERN_ERR 1363 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n", 1364 ZR_DEVNAME(zr), stat); 1365 wake_up_interruptible(&zr->test_q); 1366 } 1367 } 1368 zr->last_isr = stat; 1369 spin_unlock_irqrestore(&zr->spinlock, flags); 1370 return IRQ_HANDLED; 1371 } 1372 1373 spin_lock_irqsave(&zr->spinlock, flags); 1374 while (1) { 1375 /* get/clear interrupt status bits */ 1376 stat = count_reset_interrupt(zr); 1377 astat = stat & IRQ_MASK; 1378 if (!astat) { 1379 break; 1380 } 1381 dprintk(4, 1382 KERN_DEBUG 1383 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n", 1384 astat, btread(ZR36057_ICR)); 1385 if (astat & zr->card.vsync_int) { // SW 1386 1387 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1388 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { 1389 /* count missed interrupts */ 1390 zr->JPEG_missed++; 1391 } 1392 //post_office_read(zr,1,0); 1393 /* Interrupts may still happen when 1394 * zr->v4l_memgrab_active is switched off. 1395 * We simply ignore them */ 1396 1397 if (zr->v4l_memgrab_active) { 1398 /* A lot more checks should be here ... */ 1399 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0) 1400 dprintk(1, 1401 KERN_WARNING 1402 "%s: BuzIRQ with SnapShot off ???\n", 1403 ZR_DEVNAME(zr)); 1404 1405 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) { 1406 /* There is a grab on a frame going on, check if it has finished */ 1407 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) { 1408 /* it is finished, notify the user */ 1409 1410 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE; 1411 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq; 1412 do_gettimeofday(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp); 1413 zr->v4l_grab_frame = NO_GRAB_ACTIVE; 1414 zr->v4l_pend_tail++; 1415 } 1416 } 1417 1418 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE) 1419 wake_up_interruptible(&zr->v4l_capq); 1420 1421 /* Check if there is another grab queued */ 1422 1423 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE && 1424 zr->v4l_pend_tail != zr->v4l_pend_head) { 1425 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; 1426 u32 reg; 1427 1428 zr->v4l_grab_frame = frame; 1429 1430 /* Set zr36057 video front end and enable video */ 1431 1432 /* Buffer address */ 1433 1434 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus; 1435 btwrite(reg, ZR36057_VDTR); 1436 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1437 reg += zr->v4l_settings.bytesperline; 1438 btwrite(reg, ZR36057_VDBR); 1439 1440 /* video stride, status, and frame grab register */ 1441 reg = 0; 1442 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2) 1443 reg += zr->v4l_settings.bytesperline; 1444 reg = (reg << ZR36057_VSSFGR_DispStride); 1445 reg |= ZR36057_VSSFGR_VidOvf; 1446 reg |= ZR36057_VSSFGR_SnapShot; 1447 reg |= ZR36057_VSSFGR_FrameGrab; 1448 btwrite(reg, ZR36057_VSSFGR); 1449 1450 btor(ZR36057_VDCR_VidEn, 1451 ZR36057_VDCR); 1452 } 1453 } 1454 1455 /* even if we don't grab, we do want to increment 1456 * the sequence counter to see lost frames */ 1457 zr->v4l_grab_seq++; 1458 } 1459#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ) 1460 if (astat & ZR36057_ISR_CodRepIRQ) { 1461 zr->intr_counter_CodRepIRQ++; 1462 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", 1463 ZR_DEVNAME(zr))); 1464 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR); 1465 } 1466#endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */ 1467 1468#if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) 1469 if ((astat & ZR36057_ISR_JPEGRepIRQ) && 1470 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || 1471 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) { 1472 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) { 1473 char sv[BUZ_NUM_STAT_COM + 1]; 1474 int i; 1475 1476 printk(KERN_INFO 1477 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n", 1478 ZR_DEVNAME(zr), stat, 1479 zr->jpg_settings.odd_even, 1480 zr->jpg_settings.field_per_buff, 1481 zr->JPEG_missed); 1482 1483 for (i = 0; i < BUZ_NUM_STAT_COM; i++) 1484 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0'; 1485 sv[BUZ_NUM_STAT_COM] = 0; 1486 printk(KERN_INFO 1487 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n", 1488 ZR_DEVNAME(zr), sv, 1489 zr->jpg_que_tail, 1490 zr->jpg_dma_tail, 1491 zr->jpg_dma_head, 1492 zr->jpg_que_head); 1493 } else { 1494 /* Get statistics */ 1495 if (zr->JPEG_missed > zr->JPEG_max_missed) 1496 zr->JPEG_max_missed = zr->JPEG_missed; 1497 if (zr->JPEG_missed < zr->JPEG_min_missed) 1498 zr->JPEG_min_missed = zr->JPEG_missed; 1499 } 1500 1501 if (zr36067_debug > 2 && zr->frame_num < 6) { 1502 int i; 1503 1504 printk(KERN_INFO "%s: seq=%ld stat_com:", 1505 ZR_DEVNAME(zr), zr->jpg_seq_num); 1506 for (i = 0; i < 4; i++) { 1507 printk(KERN_CONT " %08x", 1508 le32_to_cpu(zr->stat_com[i])); 1509 } 1510 printk(KERN_CONT "\n"); 1511 } 1512 zr->frame_num++; 1513 zr->JPEG_missed = 0; 1514 zr->JPEG_error = 0; 1515 zoran_reap_stat_com(zr); 1516 zoran_feed_stat_com(zr); 1517 wake_up_interruptible(&zr->jpg_capq); 1518 } 1519#endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */ 1520 1521 /* DATERR, too many fields missed, error processing */ 1522 if ((astat & zr->card.jpeg_int) || 1523 zr->JPEG_missed > 25 || 1524 zr->JPEG_error == 1 || 1525 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) && 1526 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) { 1527 error_handler(zr, astat, stat); 1528 } 1529 1530 count++; 1531 if (count > 10) { 1532 dprintk(2, KERN_WARNING "%s: irq loop %d\n", 1533 ZR_DEVNAME(zr), count); 1534 if (count > 20) { 1535 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1536 dprintk(2, 1537 KERN_ERR 1538 "%s: IRQ lockup, cleared int mask\n", 1539 ZR_DEVNAME(zr)); 1540 break; 1541 } 1542 } 1543 zr->last_isr = stat; 1544 } 1545 spin_unlock_irqrestore(&zr->spinlock, flags); 1546 1547 return IRQ_HANDLED; 1548} 1549 1550void 1551zoran_set_pci_master (struct zoran *zr, 1552 int set_master) 1553{ 1554 if (set_master) { 1555 pci_set_master(zr->pci_dev); 1556 } else { 1557 u16 command; 1558 1559 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command); 1560 command &= ~PCI_COMMAND_MASTER; 1561 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command); 1562 } 1563} 1564 1565void 1566zoran_init_hardware (struct zoran *zr) 1567{ 1568 /* Enable bus-mastering */ 1569 zoran_set_pci_master(zr, 1); 1570 1571 /* Initialize the board */ 1572 if (zr->card.init) { 1573 zr->card.init(zr); 1574 } 1575 1576 decoder_call(zr, core, init, 0); 1577 decoder_call(zr, core, s_std, zr->norm); 1578 decoder_call(zr, video, s_routing, 1579 zr->card.input[zr->input].muxsel, 0, 0); 1580 1581 encoder_call(zr, core, init, 0); 1582 encoder_call(zr, video, s_std_output, zr->norm); 1583 encoder_call(zr, video, s_routing, 0, 0, 0); 1584 1585 /* toggle JPEG codec sleep to sync PLL */ 1586 jpeg_codec_sleep(zr, 1); 1587 jpeg_codec_sleep(zr, 0); 1588 1589 /* set individual interrupt enables (without GIRQ1) 1590 * but don't global enable until zoran_open() */ 1591 1592 //btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR); // SW 1593 // It looks like using only JPEGRepIRQEn is not always reliable, 1594 // may be when JPEG codec crashes it won't generate IRQ? So, 1595 /*CP*/ // btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM WHY ? LP 1596 zr36057_init_vfe(zr); 1597 1598 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1599 1600 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts 1601} 1602 1603void 1604zr36057_restart (struct zoran *zr) 1605{ 1606 btwrite(0, ZR36057_SPGPPCR); 1607 mdelay(1); 1608 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR); 1609 mdelay(1); 1610 1611 /* assert P_Reset */ 1612 btwrite(0, ZR36057_JPC); 1613 /* set up GPIO direction - all output */ 1614 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR); 1615 1616 /* set up GPIO pins and guest bus timing */ 1617 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1); 1618} 1619 1620/* 1621 * initialize video front end 1622 */ 1623 1624static void 1625zr36057_init_vfe (struct zoran *zr) 1626{ 1627 u32 reg; 1628 1629 reg = btread(ZR36057_VFESPFR); 1630 reg |= ZR36057_VFESPFR_LittleEndian; 1631 reg &= ~ZR36057_VFESPFR_VCLKPol; 1632 reg |= ZR36057_VFESPFR_ExtFl; 1633 reg |= ZR36057_VFESPFR_TopField; 1634 btwrite(reg, ZR36057_VFESPFR); 1635 reg = btread(ZR36057_VDCR); 1636 if (pci_pci_problems & PCIPCI_TRITON) 1637 // || zr->revision < 1) // Revision 1 has also Triton support 1638 reg &= ~ZR36057_VDCR_Triton; 1639 else 1640 reg |= ZR36057_VDCR_Triton; 1641 btwrite(reg, ZR36057_VDCR); 1642} 1643