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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 | /* daynaport.c: A Macintosh 8390 based ethernet driver for linux. */ /* Derived from code: Written 1993-94 by Donald Becker. Copyright 1993 United States Government as represented by the Director, National Security Agency. This software may be used and distributed according to the terms of the GNU General Public License, incorporated herein by reference. TODO: The block output routines may be wrong for non Dayna cards Fix this driver so that it will attempt to use the info (i.e. iobase, iosize) given to it by the new and improved NuBus code. Despite its misleading filename, this driver is not Dayna-specific anymore. */ /* Cabletron E6100 card support added by Tony Mantler (eek@escape.ca) April 1999 */ static const char *version = "daynaport.c: v0.02 1999-05-17 Alan Cox (Alan.Cox@linux.org) and others\n"; static int version_printed; #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/nubus.h> #include <asm/io.h> #include <asm/system.h> #include <asm/hwtest.h> #include <asm/macints.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include "8390.h" static int ns8390_probe1(struct net_device *dev, int word16, char *name, int id, int prom, struct nubus_dev *ndev); static int ns8390_open(struct net_device *dev); static void ns8390_no_reset(struct net_device *dev); static int ns8390_close_card(struct net_device *dev); /* Interlan */ static void interlan_reset(struct net_device *dev); /* Dayna */ static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page); /* Sane (32-bit chunk memory read/write) */ static void sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); static void sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); static void sane_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page); /* Slow Sane (16-bit chunk memory read/write) */ static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page); #define WD_START_PG 0x00 /* First page of TX buffer */ #define WD03_STOP_PG 0x20 /* Last page +1 of RX ring */ #define WD13_STOP_PG 0x40 /* Last page +1 of RX ring */ #define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ #define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */ #define DAYNA_MAC_BASE 0xf0007 #define DAYNA_8390_BASE 0x80000 /* 3 */ #define DAYNA_8390_MEM 0x00000 #define DAYNA_MEMSIZE 0x04000 /* First word of each long ! */ #define APPLE_8390_BASE 0xE0000 #define APPLE_8390_MEM 0xD0000 #define APPLE_MEMSIZE 8192 /* FIXME: need to dynamically check */ #define KINETICS_MAC_BASE 0xf0004 /* first byte of each long */ #define KINETICS_8390_BASE 0x80000 #define KINETICS_8390_MEM 0x00000 /* first word of each long */ #define KINETICS_MEMSIZE 8192 /* FIXME: need to dynamically check */ /*#define KINETICS_MEMSIZE (0x10000/2) * CSA: on the board I have, at least */ #define CABLETRON_8390_BASE 0x90000 #define CABLETRON_8390_MEM 0x00000 static int test_8390(volatile char *ptr, int scale) { int regd; int v; if(hwreg_present(&ptr[0x00])==0) return -EIO; if(hwreg_present(&ptr[0x0D<<scale])==0) return -EIO; if(hwreg_present(&ptr[0x0D<<scale])==0) return -EIO; ptr[0x00]=E8390_NODMA+E8390_PAGE1+E8390_STOP; regd=ptr[0x0D<<scale]; ptr[0x0D<<scale]=0xFF; ptr[0x00]=E8390_NODMA+E8390_PAGE0; v=ptr[0x0D<<scale]; if(ptr[0x0D<<scale]!=0) { ptr[0x0D<<scale]=regd; return -ENODEV; } /* printk("NS8390 found at %p scaled %d\n", ptr,scale);*/ return 0; } /* * Identify the species of NS8390 card/driver we need */ enum mac8390_type { NS8390_DAYNA, NS8390_INTERLAN, NS8390_KINETICS, NS8390_APPLE, NS8390_FARALLON, NS8390_ASANTE, NS8390_CABLETRON }; static int __init ns8390_ident(struct nubus_dev* ndev) { /* This really needs to be tested and tested hard. */ /* Summary of what we know so far -- * SW: 0x0104 -- asante, 16 bit, back4_offsets * SW: 0x010b -- daynaport, 16 bit, fwrd4_offsets * SW: 0x010c -- farallon, 16 bit, back4_offsets, no long word access * SW: 0x011a -- focus, [no details yet] * SW: ?????? -- interlan, 16 bit, back4_offsets, funny reset * SW: ?????? -- kinetics, 8 bit, back4_offsets * -- so i've this hypothesis going that says DrSW&1 says whether the * map is forward or backwards -- and maybe DrSW&256 says what the * register spacing is -- for all cards that report a DrSW in some * range. * This would allow the "apple compatible" driver to drive many * seemingly different types of cards. More DrSW info is needed * to investigate this properly. [CSA, 21-May-1999] */ /* Dayna ex Kinetics board */ if(ndev->dr_sw == NUBUS_DRSW_DAYNA) return NS8390_DAYNA; if(ndev->dr_sw == NUBUS_DRSW_ASANTE) return NS8390_ASANTE; if(ndev->dr_sw == NUBUS_DRSW_FARALLON) /* farallon or sonic systems */ return NS8390_FARALLON; if(ndev->dr_sw == NUBUS_DRSW_KINETICS) return NS8390_KINETICS; /* My ATI Engineering card with this combination crashes the */ /* driver trying to xmit packets. Best not touch it for now. */ /* - 1999-05-20 (funaho@jurai.org) */ if(ndev->dr_sw == NUBUS_DRSW_FOCUS) return -1; /* Check the HW on this one, because it shares the same DrSW as the on-board SONIC chips */ if(ndev->dr_hw == NUBUS_DRHW_CABLETRON) return NS8390_CABLETRON; /* does anyone have one of these? */ if(ndev->dr_hw == NUBUS_DRHW_INTERLAN) return NS8390_INTERLAN; /* FIXME: what do genuine Apple boards look like? */ return -1; } /* * Memory probe for 8390 cards */ static int __init apple_8390_mem_probe(volatile unsigned short *p) { int i, j; /* * Algorithm. * 1. Check each block size of memory doesn't fault * 2. Write a value to it * 3. Check all previous blocks are unaffected */ for(i=0;i<2;i++) { volatile unsigned short *m=p+4096*i; /* Unwriteable - we have a fully decoded card and the RAM end located */ if(hwreg_present(m)==0) return 8192*i; *m=0xA5A0|i; for(j=0;j<i;j++) { /* Partial decode and wrap ? */ if(p[4096*j]!=(0xA5A0|j)) { /* This is the first misdecode, so it had one less page than we tried */ return 8192*i; } j++; } /* Ok it still decodes.. move on 8K */ } /* * We don't look past 16K. That should cover most cards * and above 16K there isnt really any gain. */ return 16384; } /* * Probe for 8390 cards. * The ns8390_probe1() routine initializes the card and fills the * station address field. * * The NuBus interface has changed! We now scan for these somewhat * like how the PCI and Zorro drivers do. It's not clear whether * this is actually better, but it makes things more consistent. * * dev->mem_start points * at the memory ring, dev->mem_end gives the end of it. */ int __init mac8390_probe(struct net_device *dev) { static int slots; volatile unsigned short *i; volatile unsigned char *p; int plen; int id; static struct nubus_dev* ndev; /* Find the first card that hasn't already been seen */ while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev)) != NULL) { /* Have we seen it already? */ if (slots & (1<<ndev->board->slot)) continue; slots |= 1<<ndev->board->slot; /* Is it one of ours? */ if ((id = ns8390_ident(ndev)) != -1) break; } /* Hm. No more cards, then */ if (ndev == NULL) return -ENODEV; dev = init_etherdev(dev, 0); if (!dev) return -ENOMEM; SET_MODULE_OWNER(dev); if (!version_printed) { printk(KERN_INFO "%s", version); version_printed = 1; } /* * Dayna specific init */ if(id==NS8390_DAYNA) { dev->base_addr = (int)(ndev->board->slot_addr+DAYNA_8390_BASE); dev->mem_start = (int)(ndev->board->slot_addr+DAYNA_8390_MEM); dev->mem_end = dev->mem_start+DAYNA_MEMSIZE; /* 8K it seems */ printk(KERN_INFO "%s: daynaport. testing board: ", dev->name); printk("memory - "); i = (void *)dev->mem_start; memset((void *)i,0xAA, DAYNA_MEMSIZE); while(i<(volatile unsigned short *)dev->mem_end) { if(*i!=0xAAAA) goto membad; *i=0x5678; /* make sure we catch byte smearing */ if(*i!=0x5678) goto membad; i+=2; /* Skip a word */ } printk("controller - "); p=(void *)dev->base_addr; plen=0; while(plen<0x3FF00) { if(test_8390(p,0)==0) break; if(test_8390(p,1)==0) break; if(test_8390(p,2)==0) break; if(test_8390(p,3)==0) break; plen++; p++; } if(plen==0x3FF00) goto membad; printk("OK\n"); dev->irq = SLOT2IRQ(ndev->board->slot); if(ns8390_probe1(dev, 0, "dayna", id, -1, ndev)==0) return 0; } /* Cabletron */ if (id==NS8390_CABLETRON) { int memsize = 16<<10; /* fix this */ dev->base_addr=(int)(ndev->board->slot_addr+CABLETRON_8390_BASE); dev->mem_start=(int)(ndev->board->slot_addr+CABLETRON_8390_MEM); dev->mem_end=dev->mem_start+memsize; dev->irq = SLOT2IRQ(ndev->board->slot); /* The base address is unreadable if 0x00 has been written to the command register */ /* Reset the chip by writing E8390_NODMA+E8390_PAGE0+E8390_STOP just to be sure */ i = (void *)dev->base_addr; *i = 0x21; printk(KERN_INFO "%s: cabletron: testing board: ", dev->name); printk("%dK memory - ", memsize>>10); i=(void *)dev->mem_start; while(i<(volatile unsigned short *)(dev->mem_start+memsize)) { *i=0xAAAA; if(*i!=0xAAAA) goto membad; *i=0x5555; if(*i!=0x5555) goto membad; i+=2; /* Skip a word */ } printk("OK\n"); if(ns8390_probe1(dev, 1, "cabletron", id, -1, ndev)==0) return 0; } /* Apple, Farallon, Asante */ if(id==NS8390_APPLE || id==NS8390_FARALLON || id==NS8390_ASANTE) { int memsize; dev->base_addr=(int)(ndev->board->slot_addr+APPLE_8390_BASE); dev->mem_start=(int)(ndev->board->slot_addr+APPLE_8390_MEM); memsize = apple_8390_mem_probe((void *)dev->mem_start); dev->mem_end=dev->mem_start+memsize; dev->irq = SLOT2IRQ(ndev->board->slot); switch(id) { case NS8390_FARALLON: printk(KERN_INFO "%s: farallon: testing board: ", dev->name); break; case NS8390_ASANTE: printk(KERN_INFO "%s: asante: testing board: ", dev->name); break; case NS8390_APPLE: default: printk(KERN_INFO "%s: apple/clone: testing board: ", dev->name); break; } printk("%dK memory - ", memsize>>10); i=(void *)dev->mem_start; memset((void *)i,0xAA, memsize); while(i<(volatile unsigned short *)dev->mem_end) { if(*i!=0xAAAA) goto membad; *i=0x5555; if(*i!=0x5555) goto membad; i+=2; /* Skip a word */ } printk("OK\n"); switch (id) { case NS8390_FARALLON: if(ns8390_probe1(dev, 1, "farallon", id, -1, ndev)==0) return 0; break; case NS8390_ASANTE: if(ns8390_probe1(dev, 1, "asante", id, -1, ndev)==0) return 0; break; case NS8390_APPLE: default: if(ns8390_probe1(dev, 1, "apple/clone", id, -1, ndev)==0) return 0; break; } } /* Interlan */ if(id==NS8390_INTERLAN) { /* As apple and asante */ dev->base_addr=(int)(ndev->board->slot_addr+APPLE_8390_BASE); dev->mem_start=(int)(ndev->board->slot_addr+APPLE_8390_MEM); dev->mem_end=dev->mem_start+APPLE_MEMSIZE; /* 8K it seems */ dev->irq = SLOT2IRQ(ndev->board->slot); if(ns8390_probe1(dev, 1, "interlan", id, -1, ndev)==0) return 0; } /* Kinetics (Shiva Etherport) */ if(id==NS8390_KINETICS) { dev->base_addr=(int)(ndev->board->slot_addr+KINETICS_8390_BASE); dev->mem_start=(int)(ndev->board->slot_addr+KINETICS_8390_MEM); dev->mem_end=dev->mem_start+KINETICS_MEMSIZE; /* 8K it seems */ dev->irq = SLOT2IRQ(ndev->board->slot); if(ns8390_probe1(dev, 0, "kinetics", id, -1, ndev)==0) return 0; } /* We should hopefully not get here */ printk(KERN_ERR "Probe unsuccessful.\n"); return -ENODEV; membad: printk(KERN_ERR "failed at %p in %p - %p.\n", i, (void *)dev->mem_start, (void *)dev->mem_end); return -ENODEV; } static int __init mac8390_ethernet_addr(struct nubus_dev* ndev, unsigned char addr[6]) { struct nubus_dir dir; struct nubus_dirent ent; /* Get the functional resource for this device */ if (nubus_get_func_dir(ndev, &dir) == -1) return -1; if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) return -1; nubus_get_rsrc_mem(addr, &ent, 6); return 0; } static int __init ns8390_probe1(struct net_device *dev, int word16, char *model_name, int type, int promoff, struct nubus_dev *ndev) { static u32 fwrd4_offsets[16]={ 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 }; static u32 back4_offsets[16]={ 60, 56, 52, 48, 44, 40, 36, 32, 28, 24, 20, 16, 12, 8, 4, 0 }; static u32 fwrd2_offsets[16]={ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 }; unsigned char *prom = (unsigned char*) ndev->board->slot_addr + promoff; /* Allocate dev->priv and fill in 8390 specific dev fields. */ if (ethdev_init(dev)) { printk ("%s: unable to get memory for dev->priv.\n", dev->name); return -ENOMEM; } /* OK, we are certain this is going to work. Setup the device. */ ei_status.name = model_name; ei_status.word16 = word16; if (type==NS8390_CABLETRON) { /* Cabletron card puts the RX buffer before the TX buffer */ ei_status.tx_start_page = CABLETRON_TX_START_PG; ei_status.rx_start_page = CABLETRON_RX_START_PG; ei_status.stop_page = CABLETRON_RX_STOP_PG; dev->rmem_start = dev->mem_start; dev->rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; } else { ei_status.tx_start_page = WD_START_PG; ei_status.rx_start_page = WD_START_PG + TX_PAGES; ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; dev->rmem_start = dev->mem_start + TX_PAGES*256; dev->rmem_end = dev->mem_end; } if(promoff==-1) /* Use nubus resources ? */ { if(mac8390_ethernet_addr(ndev, dev->dev_addr)) { printk("mac_ns8390: MAC address not in resources!\n"); return -ENODEV; } } else /* Pull it off the card */ { int i=0; int x=1; /* These should go in the end I hope */ if(type==NS8390_DAYNA) x=2; if(type==NS8390_INTERLAN || type==NS8390_KINETICS) x=4; while(i<6) { dev->dev_addr[i]=*prom; prom+=x; if(i) printk(":"); printk("%02X",dev->dev_addr[i++]); } } printk(KERN_INFO "%s: %s in slot %X (type %s)\n", dev->name, ndev->board->name, ndev->board->slot, model_name); printk(KERN_INFO "MAC "); { int i; for (i = 0; i < 6; i++) { printk("%2.2x", dev->dev_addr[i]); if (i < 5) printk(":"); } } printk(" IRQ %d, shared memory at %#lx-%#lx.\n", dev->irq, dev->mem_start, dev->mem_end-1); switch(type) { case NS8390_DAYNA: /* Dayna card */ case NS8390_KINETICS: /* Kinetics -- 8 bit config, but 16 bit mem */ /* 16 bit, 4 word offsets */ ei_status.reset_8390 = &ns8390_no_reset; ei_status.block_input = &dayna_block_input; ei_status.block_output = &dayna_block_output; ei_status.get_8390_hdr = &dayna_get_8390_hdr; ei_status.reg_offset = fwrd4_offsets; break; case NS8390_CABLETRON: /* Cabletron */ /* 16 bit card, register map is short forward */ ei_status.reset_8390 = &ns8390_no_reset; /* Ctron card won't accept 32bit values read or written to it */ ei_status.block_input = &slow_sane_block_input; ei_status.block_output = &slow_sane_block_output; ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; ei_status.reg_offset = fwrd2_offsets; break; case NS8390_FARALLON: case NS8390_APPLE: /* Apple/Asante/Farallon */ /* 16 bit card, register map is reversed */ ei_status.reset_8390 = &ns8390_no_reset; ei_status.block_input = &slow_sane_block_input; ei_status.block_output = &slow_sane_block_output; ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; ei_status.reg_offset = back4_offsets; break; case NS8390_ASANTE: /* 16 bit card, register map is reversed */ ei_status.reset_8390 = &ns8390_no_reset; ei_status.block_input = &sane_block_input; ei_status.block_output = &sane_block_output; ei_status.get_8390_hdr = &sane_get_8390_hdr; ei_status.reg_offset = back4_offsets; break; case NS8390_INTERLAN: /* Interlan */ /* 16 bit card, map is forward */ ei_status.reset_8390 = &interlan_reset; ei_status.block_input = &sane_block_input; ei_status.block_output = &sane_block_output; ei_status.get_8390_hdr = &sane_get_8390_hdr; ei_status.reg_offset = back4_offsets; break; #if 0 /* i think this suffered code rot. my kinetics card has much * different settings. -- CSA [22-May-1999] */ case NS8390_KINETICS: /* Kinetics */ /* 8bit card, map is forward */ ei_status.reset_8390 = &ns8390_no_reset; ei_status.block_input = &sane_block_input; ei_status.block_output = &sane_block_output; ei_status.get_8390_hdr = &sane_get_8390_hdr; ei_status.reg_offset = back4_offsets; break; #endif default: panic("Detected a card I can't drive - whoops\n"); } dev->open = &ns8390_open; dev->stop = &ns8390_close_card; NS8390_init(dev, 0); return 0; } static int ns8390_open(struct net_device *dev) { int ret; ei_open(dev); /* At least on my card (a Focus Enhancements PDS card) I start */ /* getting interrupts right away, so the driver needs to be */ /* completely initialized before enabling the interrupt. */ /* - funaho@jurai.org (1999-05-17) */ /* Non-slow interrupt, works around issues with the SONIC driver */ ret = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev); if (ret) { printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq); return ret; } return 0; } static void ns8390_no_reset(struct net_device *dev) { if (ei_debug > 1) printk("Need to reset the NS8390 t=%lu...", jiffies); ei_status.txing = 0; if (ei_debug > 1) printk("reset not supported\n"); } static int ns8390_close_card(struct net_device *dev) { if (ei_debug > 1) printk("%s: Shutting down ethercard.\n", dev->name); free_irq(dev->irq, dev); ei_close(dev); return 0; } /* * Interlan Specific Code Starts Here */ static void interlan_reset(struct net_device *dev) { unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq)); if (ei_debug > 1) printk("Need to reset the NS8390 t=%lu...", jiffies); ei_status.txing = 0; /* This write resets the card */ target[0xC0000]=0; if (ei_debug > 1) printk("reset complete\n"); return; } /* * Daynaport code (some is used by other drivers) */ /* Grab the 8390 specific header. Similar to the block_input routine, but we don't need to be concerned with ring wrap as the header will be at the start of a page, so we optimize accordingly. */ /* Block input and output are easy on shared memory ethercards, and trivial on the Daynaport card where there is no choice of how to do it. The only complications are that the ring buffer wraps. */ static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count) { volatile unsigned short *ptr; unsigned short *target=to; from<<=1; /* word, skip overhead */ ptr=(unsigned short *)(dev->mem_start+from); /* * Leading byte? */ if (from&2) { *((char *)target)++ = *(((char *)ptr++)-1); count--; } while(count>=2) { *target++=*ptr++; /* Copy and */ ptr++; /* skip cruft */ count-=2; } /* * Trailing byte ? */ if(count) { /* Big endian */ unsigned short v=*ptr; *((char *)target)=v>>8; } } static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count) { volatile unsigned short *ptr; const unsigned short *src=from; to<<=1; /* word, skip overhead */ ptr=(unsigned short *)(dev->mem_start+to); /* * Leading byte? */ if (to&2) { /* avoid a byte write (stomps on other data) */ ptr[-1] = (ptr[-1]&0xFF00)|*((unsigned char *)src)++; ptr++; count--; } while(count>=2) { *ptr++=*src++; /* Copy and */ ptr++; /* skip cruft */ count-=2; } /* * Trailing byte ? */ if(count) { /* Big endian */ unsigned short v=*src; /* card doesn't like byte writes */ *ptr=(*ptr&0x00FF)|(v&0xFF00); } } static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { unsigned long hdr_start = (ring_page - WD_START_PG)<<8; dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4); /* Register endianism - fix here rather than 8390.c */ hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8); } static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { unsigned long xfer_base = ring_offset - (WD_START_PG<<8); unsigned long xfer_start = xfer_base+dev->mem_start; /* * Note the offset maths is done in card memory space which * is word per long onto our space. */ if (xfer_start + count > dev->rmem_end) { /* We must wrap the input move. */ int semi_count = dev->rmem_end - xfer_start; dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); count -= semi_count; dayna_memcpy_fromcard(dev, skb->data + semi_count, dev->rmem_start - dev->mem_start, count); } else { dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); } } static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf, int start_page) { long shmem = (start_page - WD_START_PG)<<8; dayna_memcpy_tocard(dev, shmem, buf, count); } /* * Cards with full width memory */ static void sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { unsigned long hdr_start = (ring_page - WD_START_PG)<<8; memcpy((void *)hdr, (char *)dev->mem_start+hdr_start, 4); /* Register endianism - fix here rather than 8390.c */ hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8); } static void sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { unsigned long xfer_base = ring_offset - (WD_START_PG<<8); unsigned long xfer_start = xfer_base+dev->mem_start; if (xfer_start + count > dev->rmem_end) { /* We must wrap the input move. */ int semi_count = dev->rmem_end - xfer_start; memcpy(skb->data, (char *)dev->mem_start+xfer_base, semi_count); count -= semi_count; memcpy(skb->data + semi_count, (char *)dev->rmem_start, count); } else { memcpy(skb->data, (char *)dev->mem_start+xfer_base, count); } } static void sane_block_output(struct net_device *dev, int count, const unsigned char *buf, int start_page) { long shmem = (start_page - WD_START_PG)<<8; memcpy((char *)dev->mem_start+shmem, buf, count); } static void word_memcpy_tocard(void *tp, const void *fp, int count) { volatile unsigned short *to = tp; const unsigned short *from = fp; count++; count/=2; while(count--) *to++=*from++; } static void word_memcpy_fromcard(void *tp, const void *fp, int count) { unsigned short *to = tp; const volatile unsigned short *from = fp; count++; count/=2; while(count--) *to++=*from++; } static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { unsigned long hdr_start = (ring_page - WD_START_PG)<<8; word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4); /* Register endianism - fix here rather than 8390.c */ hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8); } static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { unsigned long xfer_base = ring_offset - (WD_START_PG<<8); unsigned long xfer_start = xfer_base+dev->mem_start; if (xfer_start + count > dev->rmem_end) { /* We must wrap the input move. */ int semi_count = dev->rmem_end - xfer_start; word_memcpy_fromcard(skb->data, (char *)dev->mem_start+xfer_base, semi_count); count -= semi_count; word_memcpy_fromcard(skb->data + semi_count, (char *)dev->rmem_start, count); } else { word_memcpy_fromcard(skb->data, (char *)dev->mem_start+xfer_base, count); } } static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf, int start_page) { long shmem = (start_page - WD_START_PG)<<8; word_memcpy_tocard((char *)dev->mem_start+shmem, buf, count); #if 0 long shmem = (start_page - WD_START_PG)<<8; volatile unsigned short *to=(unsigned short *)(dev->mem_start+shmem); volatile int p; unsigned short *bp=(unsigned short *)buf; count=(count+1)/2; while(count--) { *to++=*bp++; for(p=0;p<10;p++) p++; } #endif } /* * Local variables: * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c daynaport.c" * version-control: t * c-basic-offset: 4 * tab-width: 4 * kept-new-versions: 5 * End: */ |