drivers/net/ni65.c

   1 /*
   2  * ni6510 (am7990 'lance' chip) driver for Linux-net-3
   3  * BETAcode v0.71 (96/09/29) for 2.0.0 (or later)
   4  * copyrights (c) 1994,1995,1996 by M.Hipp
   5  *
   6  * This driver can handle the old ni6510 board and the newer ni6510
   7  * EtherBlaster. (probably it also works with every full NE2100
   8  * compatible card)
   9  *
  10  * To compile as module, type:
  11  *     gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ -DMODULE -c ni65.c
  12  * driver probes: io: 0x360,0x300,0x320,0x340 / dma: 3,5,6,7
  13  *
  14  * This is an extension to the Linux operating system, and is covered by the
  15  * same GNU General Public License that covers the Linux-kernel.
  16  *
  17  * comments/bugs/suggestions can be sent to:
  18  *   Michael Hipp
  19  *   email: hippm@informatik.uni-tuebingen.de
  20  *
  21  * sources:
  22  *   some things are from the 'ni6510-packet-driver for dos by Russ Nelson'
  23  *   and from the original drivers by D.Becker
  24  *
  25  * known problems:
  26  *   - on some PCI boards (including my own) the card/board/ISA-bridge has
  27  *     problems with bus master DMA. This results in lotsa overruns.
  28  *     It may help to '#define RCV_PARANOIA_CHECK' or try to #undef
  29  *     the XMT and RCV_VIA_SKB option .. this reduces driver performance.
  30  *     Or just play with your BIOS options to optimize ISA-DMA access.
  31  *     Maybe you also wanna play with the LOW_PERFORAMCE and MID_PERFORMANCE
  32  *     defines -> please report me your experience then
  33  *   - Harald reported for ASUS SP3G mainboards, that you should use
  34  *     the 'optimal settings' from the user's manual on page 3-12!
  35  *
  36  * credits:
  37  *   thanx to Jason Sullivan for sending me a ni6510 card!
  38  *   lot of debug runs with ASUS SP3G Boards (Intel Saturn) by Harald Koenig
  39  *
  40  * simple performance test: (486DX-33/Ni6510-EB receives from 486DX4-100/Ni6510-EB)
  41  *    average: FTP -> 8384421 bytes received in 8.5 seconds
  42  *           (no RCV_VIA_SKB,no XMT_VIA_SKB,PARANOIA_CHECK,4 XMIT BUFS, 8 RCV_BUFFS)
  43  *    peak: FTP -> 8384421 bytes received in 7.5 seconds
  44  *           (RCV_VIA_SKB,XMT_VIA_SKB,no PARANOIA_CHECK,1(!) XMIT BUF, 16 RCV BUFFS)
  45  */
  46
  47 /*
  48  * 99.Jun.8: added support for /proc/net/dev byte count for xosview (HK)
  49  * 96.Sept.29: virt_to_bus stuff added for new memory modell
  50  * 96.April.29: Added Harald Koenig's Patches (MH)
  51  * 96.April.13: enhanced error handling .. more tests (MH)
  52  * 96.April.5/6: a lot of performance tests. Got it stable now (hopefully) (MH)
  53  * 96.April.1: (no joke ;) .. added EtherBlaster and Module support (MH)
  54  * 96.Feb.19: fixed a few bugs .. cleanups .. tested for 1.3.66 (MH)
  55  *            hopefully no more 16MB limit
  56  *
  57  * 95.Nov.18: multicast tweaked (AC).
  58  *
  59  * 94.Aug.22: changes in xmit_intr (ack more than one xmitted-packet), ni65_send_packet (p->lock) (MH)
  60  *
  61  * 94.July.16: fixed bugs in recv_skb and skb-alloc stuff  (MH)
  62  */
  63
  64 #include <linux/kernel.h>
  65 #include <linux/sched.h>
  66 #include <linux/string.h>
  67 #include <linux/ptrace.h>
  68 #include <linux/errno.h>
  69 #include <linux/ioport.h>
  70 #include <linux/slab.h>
  71 #include <linux/interrupt.h>
  72 #include <linux/delay.h>
  73 #include <linux/init.h>
  74 #include <asm/bitops.h>
  75 #include <asm/io.h>
  76 #include <asm/dma.h>
  77
  78 #include <linux/netdevice.h>
  79 #include <linux/etherdevice.h>
  80 #include <linux/skbuff.h>
  81
  82 #include <linux/version.h>
  83 #include <linux/module.h>
  84
  85 #include "ni65.h"
  86
  87 /*
  88  * the current setting allows an acceptable performance
  89  * for 'RCV_PARANOIA_CHECK' read the 'known problems' part in
  90  * the header of this file
  91  * 'invert' the defines for max. performance. This may cause DMA problems
  92  * on some boards (e.g on my ASUS SP3G)
  93  */
  94 #undef XMT_VIA_SKB
  95 #undef RCV_VIA_SKB
  96 #define RCV_PARANOIA_CHECK
  97
  98 #define MID_PERFORMANCE
  99
 100 #if   defined( LOW_PERFORMANCE )
 101  static int isa0=7,isa1=7,csr80=0x0c10;
 102 #elif defined( MID_PERFORMANCE )
 103  static int isa0=5,isa1=5,csr80=0x2810;
 104 #else   /* high performance */
 105  static int isa0=4,isa1=4,csr80=0x0017;
 106 #endif
 107
 108 /*
 109  * a few card/vendor specific defines
 110  */
 111 #define NI65_ID0    0x00
 112 #define NI65_ID1    0x55
 113 #define NI65_EB_ID0 0x52
 114 #define NI65_EB_ID1 0x44
 115 #define NE2100_ID0  0x57
 116 #define NE2100_ID1  0x57
 117
 118 #define PORT p->cmdr_addr
 119
 120 /*
 121  * buffer configuration
 122  */
 123 #if 1
 124 #define RMDNUM 16
 125 #define RMDNUMMASK 0x80000000
 126 #else
 127 #define RMDNUM 8
 128 #define RMDNUMMASK 0x60000000 /* log2(RMDNUM)<<29 */
 129 #endif
 130
 131 #if 0
 132 #define TMDNUM 1
 133 #define TMDNUMMASK 0x00000000
 134 #else
 135 #define TMDNUM 4
 136 #define TMDNUMMASK 0x40000000 /* log2(TMDNUM)<<29 */
 137 #endif
 138
 139 /* slightly oversized */
 140 #define R_BUF_SIZE 1544
 141 #define T_BUF_SIZE 1544
 142
 143 /*
 144  * lance register defines
 145  */
 146 #define L_DATAREG 0x00
 147 #define L_ADDRREG 0x02
 148 #define L_RESET   0x04
 149 #define L_CONFIG  0x05
 150 #define L_BUSIF   0x06
 151
 152 /*
 153  * to access the lance/am7990-regs, you have to write
 154  * reg-number into L_ADDRREG, then you can access it using L_DATAREG
 155  */
 156 #define CSR0  0x00
 157 #define CSR1  0x01
 158 #define CSR2  0x02
 159 #define CSR3  0x03
 160
 161 #define INIT_RING_BEFORE_START  0x1
 162 #define FULL_RESET_ON_ERROR     0x2
 163
 164 #if 0
 165 #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);inw(PORT+L_ADDRREG); \
 166                            outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
 167 #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_ADDRREG),\
 168                        inw(PORT+L_DATAREG))
 169 #if 0
 170 #define writedatareg(val) {outw(val,PORT+L_DATAREG);inw(PORT+L_DATAREG);}
 171 #else
 172 #define writedatareg(val) {  writereg(val,CSR0); }
 173 #endif
 174 #else
 175 #define writereg(val,reg) {outw(reg,PORT+L_ADDRREG);outw(val,PORT+L_DATAREG);}
 176 #define readreg(reg) (outw(reg,PORT+L_ADDRREG),inw(PORT+L_DATAREG))
 177 #define writedatareg(val) { writereg(val,CSR0); }
 178 #endif
 179
 180 static unsigned char ni_vendor[] = { 0x02,0x07,0x01 };
 181
 182 static struct card {
 183         unsigned char id0,id1;
 184         short id_offset;
 185         short total_size;
 186         short cmd_offset;
 187         short addr_offset;
 188         unsigned char *vendor_id;
 189         char *cardname;
 190         unsigned char config;
 191 } cards[] = {
 192         { NI65_ID0,NI65_ID1,0x0e,0x10,0x0,0x8,ni_vendor,"ni6510", 0x1 } ,
 193         { NI65_EB_ID0,NI65_EB_ID1,0x0e,0x18,0x10,0x0,ni_vendor,"ni6510 EtherBlaster", 0x2 } ,
 194         { NE2100_ID0,NE2100_ID1,0x0e,0x18,0x10,0x0,NULL,"generic NE2100", 0x0 }
 195 };
 196 #define NUM_CARDS 3
 197
 198 struct priv
 199 {
 200         struct rmd rmdhead[RMDNUM];
 201         struct tmd tmdhead[TMDNUM];
 202         struct init_block ib;
 203         int rmdnum;
 204         int tmdnum,tmdlast;
 205 #ifdef RCV_VIA_SKB
 206         struct sk_buff *recv_skb[RMDNUM];
 207 #else
 208         void *recvbounce[RMDNUM];
 209 #endif
 210 #ifdef XMT_VIA_SKB
 211         struct sk_buff *tmd_skb[TMDNUM];
 212 #endif
 213         void *tmdbounce[TMDNUM];
 214         int tmdbouncenum;
 215         int lock,xmit_queued;
 216         struct net_device_stats stats;
 217         void *self;
 218         int cmdr_addr;
 219         int cardno;
 220         int features;
 221 };
 222
 223 static int  ni65_probe1(struct net_device *dev,int);
 224 static void ni65_interrupt(int irq, void * dev_id, struct pt_regs *regs);
 225 static void ni65_recv_intr(struct net_device *dev,int);
 226 static void ni65_xmit_intr(struct net_device *dev,int);
 227 static int  ni65_open(struct net_device *dev);
 228 static int  ni65_lance_reinit(struct net_device *dev);
 229 static void ni65_init_lance(struct priv *p,unsigned char*,int,int);
 230 static int  ni65_send_packet(struct sk_buff *skb, struct net_device *dev);
 231 static void  ni65_timeout(struct net_device *dev);
 232 static int  ni65_close(struct net_device *dev);
 233 static int  ni65_alloc_buffer(struct net_device *dev);
 234 static void ni65_free_buffer(struct priv *p);
 235 static struct net_device_stats *ni65_get_stats(struct net_device *);
 236 static void set_multicast_list(struct net_device *dev);
 237
 238 static int irqtab[] __initdata = { 9,12,15,5 }; /* irq config-translate */
 239 static int dmatab[] __initdata = { 0,3,5,6,7 }; /* dma config-translate and autodetect */
 240
 241 static int debuglevel = 1;
 242
 243 /*
 244  * set 'performance' registers .. we must STOP lance for that
 245  */
 246 static void ni65_set_performance(struct priv *p)
 247 {
 248         writereg(CSR0_STOP | CSR0_CLRALL,CSR0); /* STOP */
 249
 250         if( !(cards[p->cardno].config & 0x02) )
 251                 return;
 252
 253         outw(80,PORT+L_ADDRREG);
 254         if(inw(PORT+L_ADDRREG) != 80)
 255                 return;
 256
 257         writereg( (csr80 & 0x3fff) ,80); /* FIFO watermarks */
 258         outw(0,PORT+L_ADDRREG);
 259         outw((short)isa0,PORT+L_BUSIF); /* write ISA 0: DMA_R : isa0 * 50ns */
 260         outw(1,PORT+L_ADDRREG);
 261         outw((short)isa1,PORT+L_BUSIF); /* write ISA 1: DMA_W : isa1 * 50ns     */
 262
 263         outw(CSR0,PORT+L_ADDRREG);      /* switch back to CSR0 */
 264 }
 265
 266 /*
 267  * open interface (up)
 268  */
 269 static int ni65_open(struct net_device *dev)
 270 {
 271         struct priv *p = (struct priv *) dev->priv;
 272         int irqval = request_irq(dev->irq, &ni65_interrupt,0,
 273                         cards[p->cardno].cardname,dev);
 274         if (irqval) {
 275                 printk ("%s: unable to get IRQ %d (irqval=%d).\n",
 276                           dev->name,dev->irq, irqval);
 277                 return -EAGAIN;
 278         }
 279
 280         if(ni65_lance_reinit(dev))
 281         {
 282                 netif_start_queue(dev);
 283                 MOD_INC_USE_COUNT;
 284                 return 0;
 285         }
 286         else
 287         {
 288                 free_irq(dev->irq,dev);
 289                 return -EAGAIN;
 290         }
 291 }
 292
 293 /*
 294  * close interface (down)
 295  */
 296 static int ni65_close(struct net_device *dev)
 297 {
 298         struct priv *p = (struct priv *) dev->priv;
 299
 300         netif_stop_queue(dev);
 301
 302         outw(inw(PORT+L_RESET),PORT+L_RESET); /* that's the hard way */
 303
 304 #ifdef XMT_VIA_SKB
 305         {
 306                 int i;
 307                 for(i=0;i<TMDNUM;i++)
 308                 {
 309                         if(p->tmd_skb[i]) {
 310                                 dev_kfree_skb(p->tmd_skb[i]);
 311                                 p->tmd_skb[i] = NULL;
 312                         }
 313                 }
 314         }
 315 #endif
 316         free_irq(dev->irq,dev);
 317         MOD_DEC_USE_COUNT;
 318         return 0;
 319 }
 320
 321 /*
 322  * Probe The Card (not the lance-chip)
 323  */
 324 #ifdef MODULE
 325 static
 326 #endif
 327 int __init ni65_probe(struct net_device *dev)
 328 {
 329         int *port;
 330         static int ports[] = {0x360,0x300,0x320,0x340, 0};
 331
 332         if (dev->base_addr > 0x1ff)          /* Check a single specified location. */
 333                  return ni65_probe1(dev, dev->base_addr);
 334         else if (dev->base_addr > 0)         /* Don't probe at all. */
 335                  return -ENXIO;
 336
 337         for (port = ports; *port; port++)
 338         {
 339                 if (ni65_probe1(dev, *port) == 0)
 340                          return 0;
 341         }
 342
 343         return -ENODEV;
 344 }
 345
 346 /*
 347  * this is the real card probe ..
 348  */
 349 static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 350 {
 351         int i,j;
 352         struct priv *p;
 353         unsigned long flags;
 354
 355         for(i=0;i<NUM_CARDS;i++) {
 356                 if(!request_region(ioaddr, cards[i].total_size, cards[i].cardname))
 357                         continue;
 358                 if(cards[i].id_offset >= 0) {
 359                         if(inb(ioaddr+cards[i].id_offset+0) != cards[i].id0 ||
 360                                  inb(ioaddr+cards[i].id_offset+1) != cards[i].id1) {
 361                                  release_region(ioaddr, cards[i].total_size);
 362                                  continue;
 363                         }
 364                 }
 365                 if(cards[i].vendor_id) {
 366                         for(j=0;j<3;j++)
 367                                 if(inb(ioaddr+cards[i].addr_offset+j) != cards[i].vendor_id[j]) {
 368                                         release_region(ioaddr, cards[i].total_size);
 369                                         continue;
 370                           }
 371                 }
 372                 break;
 373         }
 374         if(i == NUM_CARDS)
 375                 return -ENODEV;
 376
 377         for(j=0;j<6;j++)
 378                 dev->dev_addr[j] = inb(ioaddr+cards[i].addr_offset+j);
 379
 380         if( (j=ni65_alloc_buffer(dev)) < 0) {
 381                 release_region(ioaddr, cards[i].total_size);
 382                 return j;
 383         }
 384         p = (struct priv *) dev->priv;
 385         p->cmdr_addr = ioaddr + cards[i].cmd_offset;
 386         p->cardno = i;
 387
 388         printk("%s: %s found at %#3x, ", dev->name, cards[p->cardno].cardname , ioaddr);
 389
 390         outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 391         if( (j=readreg(CSR0)) != 0x4) {
 392                  printk(KERN_ERR "can't RESET card: %04x\n",j);
 393                  ni65_free_buffer(p);
 394                  release_region(ioaddr, cards[p->cardno].total_size);
 395                  return -EAGAIN;
 396         }
 397
 398         outw(88,PORT+L_ADDRREG);
 399         if(inw(PORT+L_ADDRREG) == 88) {
 400                 unsigned long v;
 401                 v = inw(PORT+L_DATAREG);
 402                 v <<= 16;
 403                 outw(89,PORT+L_ADDRREG);
 404                 v |= inw(PORT+L_DATAREG);
 405                 printk("Version %#08lx, ",v);
 406                 p->features = INIT_RING_BEFORE_START;
 407         }
 408         else {
 409                 printk("ancient LANCE, ");
 410                 p->features = 0x0;
 411         }
 412
 413         if(test_bit(0,&cards[i].config)) {
 414                 dev->irq = irqtab[(inw(ioaddr+L_CONFIG)>>2)&3];
 415                 dev->dma = dmatab[inw(ioaddr+L_CONFIG)&3];
 416                 printk("IRQ %d (from card), DMA %d (from card).\n",dev->irq,dev->dma);
 417         }
 418         else {
 419                 if(dev->dma == 0) {
 420                 /* 'stuck test' from lance.c */
 421                         int dma_channels = ((inb(DMA1_STAT_REG) >> 4) & 0x0f) | (inb(DMA2_STAT_REG) & 0xf0);
 422                         for(i=1;i<5;i++) {
 423                                 int dma = dmatab[i];
 424                                 if(test_bit(dma,&dma_channels) || request_dma(dma,"ni6510"))
 425                                         continue;
 426
 427                                 flags=claim_dma_lock();
 428                                 disable_dma(dma);
 429                                 set_dma_mode(dma,DMA_MODE_CASCADE);
 430                                 enable_dma(dma);
 431                                 release_dma_lock(flags);
 432
 433                                 ni65_init_lance(p,dev->dev_addr,0,0); /* trigger memory access */
 434
 435                                 flags=claim_dma_lock();
 436                                 disable_dma(dma);
 437                                 free_dma(dma);
 438                                 release_dma_lock(flags);
 439
 440                                 if(readreg(CSR0) & CSR0_IDON)
 441                                         break;
 442                         }
 443                         if(i == 5) {
 444                                 printk("Can't detect DMA channel!\n");
 445                                 ni65_free_buffer(p);
 446                                 release_region(ioaddr, cards[p->cardno].total_size);
 447                                 return -EAGAIN;
 448                         }
 449                         dev->dma = dmatab[i];
 450                         printk("DMA %d (autodetected), ",dev->dma);
 451                 }
 452                 else
 453                         printk("DMA %d (assigned), ",dev->dma);
 454
 455                 if(dev->irq < 2)
 456                 {
 457                         ni65_init_lance(p,dev->dev_addr,0,0);
 458                         autoirq_setup(0);
 459                         writereg(CSR0_INIT|CSR0_INEA,CSR0); /* trigger interrupt */
 460
 461                         if(!(dev->irq = autoirq_report(2)))
 462                         {
 463                                 printk("Failed to detect IRQ line!\n");
 464                                 ni65_free_buffer(p);
 465                                 release_region(ioaddr, cards[p->cardno].total_size);
 466                                 return -EAGAIN;
 467                         }
 468                         printk("IRQ %d (autodetected).\n",dev->irq);
 469                 }
 470                 else
 471                         printk("IRQ %d (assigned).\n",dev->irq);
 472         }
 473
 474         if(request_dma(dev->dma, cards[p->cardno].cardname ) != 0)
 475         {
 476                 printk("%s: Can't request dma-channel %d\n",dev->name,(int) dev->dma);
 477                 ni65_free_buffer(p);
 478                 release_region(ioaddr, cards[p->cardno].total_size);
 479                 return -EAGAIN;
 480         }
 481
 482         dev->base_addr = ioaddr;
 483
 484         dev->open               = ni65_open;
 485         dev->stop               = ni65_close;
 486         dev->hard_start_xmit    = ni65_send_packet;
 487         dev->tx_timeout         = ni65_timeout;
 488         dev->watchdog_timeo     = HZ/2;
 489         dev->get_stats          = ni65_get_stats;
 490         dev->set_multicast_list = set_multicast_list;
 491
 492         ether_setup(dev);
 493
 494         return 0; /* everything is OK */
 495 }
 496
 497 /*
 498  * set lance register and trigger init
 499  */
 500 static void ni65_init_lance(struct priv *p,unsigned char *daddr,int filter,int mode)
 501 {
 502         int i;
 503         u32 pib;
 504
 505         writereg(CSR0_CLRALL|CSR0_STOP,CSR0);
 506
 507         for(i=0;i<6;i++)
 508                 p->ib.eaddr[i] = daddr[i];
 509
 510         for(i=0;i<8;i++)
 511                 p->ib.filter[i] = filter;
 512         p->ib.mode = mode;
 513
 514         p->ib.trp = (u32) virt_to_bus(p->tmdhead) | TMDNUMMASK;
 515         p->ib.rrp = (u32) virt_to_bus(p->rmdhead) | RMDNUMMASK;
 516         writereg(0,CSR3);       /* busmaster/no word-swap */
 517         pib = (u32) virt_to_bus(&p->ib);
 518         writereg(pib & 0xffff,CSR1);
 519         writereg(pib >> 16,CSR2);
 520
 521         writereg(CSR0_INIT,CSR0); /* this changes L_ADDRREG to CSR0 */
 522
 523         for(i=0;i<32;i++)
 524         {
 525                 mdelay(4);
 526                 if(inw(PORT+L_DATAREG) & (CSR0_IDON | CSR0_MERR) )
 527                         break; /* init ok ? */
 528         }
 529 }
 530
 531 /*
 532  * allocate memory area and check the 16MB border
 533  */
 534 static void *ni65_alloc_mem(struct net_device *dev,char *what,int size,int type)
 535 {
 536         struct sk_buff *skb=NULL;
 537         unsigned char *ptr;
 538         void *ret;
 539
 540         if(type) {
 541                 ret = skb = alloc_skb(2+16+size,GFP_KERNEL|GFP_DMA);
 542                 if(!skb) {
 543                         printk("%s: unable to allocate %s memory.\n",dev->name,what);
 544                         return NULL;
 545                 }
 546                 skb->dev = dev;
 547                 skb_reserve(skb,2+16);
 548                 skb_put(skb,R_BUF_SIZE);         /* grab the whole space .. (not necessary) */
 549                 ptr = skb->data;
 550         }
 551         else {
 552                 ret = ptr = kmalloc(T_BUF_SIZE,GFP_KERNEL | GFP_DMA);
 553                 if(!ret) {
 554                         printk("%s: unable to allocate %s memory.\n",dev->name,what);
 555                         return NULL;
 556                 }
 557         }
 558         if( (u32) virt_to_bus(ptr+size) > 0x1000000) {
 559                 printk("%s: unable to allocate %s memory in lower 16MB!\n",dev->name,what);
 560                 if(type)
 561                         kfree_skb(skb);
 562                 else
 563                         kfree(ptr);
 564                 return NULL;
 565         }
 566         return ret;
 567 }
 568
 569 /*
 570  * allocate all memory structures .. send/recv buffers etc ...
 571  */
 572 static int ni65_alloc_buffer(struct net_device *dev)
 573 {
 574         unsigned char *ptr;
 575         struct priv *p;
 576         int i;
 577
 578         /*
 579          * we need 8-aligned memory ..
 580          */
 581         ptr = ni65_alloc_mem(dev,"BUFFER",sizeof(struct priv)+8,0);
 582         if(!ptr)
 583                 return -ENOMEM;
 584
 585         p = dev->priv = (struct priv *) (((unsigned long) ptr + 7) & ~0x7);
 586         memset((char *) dev->priv,0,sizeof(struct priv));
 587         p->self = ptr;
 588
 589         for(i=0;i<TMDNUM;i++)
 590         {
 591 #ifdef XMT_VIA_SKB
 592                 p->tmd_skb[i] = NULL;
 593 #endif
 594                 p->tmdbounce[i] = ni65_alloc_mem(dev,"XMIT",T_BUF_SIZE,0);
 595                 if(!p->tmdbounce[i]) {
 596                         ni65_free_buffer(p);
 597                         return -ENOMEM;
 598                 }
 599         }
 600
 601         for(i=0;i<RMDNUM;i++)
 602         {
 603 #ifdef RCV_VIA_SKB
 604                 p->recv_skb[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,1);
 605                 if(!p->recv_skb[i]) {
 606                         ni65_free_buffer(p);
 607                         return -ENOMEM;
 608                 }
 609 #else
 610                 p->recvbounce[i] = ni65_alloc_mem(dev,"RECV",R_BUF_SIZE,0);
 611                 if(!p->recvbounce[i]) {
 612                         ni65_free_buffer(p);
 613                         return -ENOMEM;
 614                 }
 615 #endif
 616         }
 617
 618         return 0; /* everything is OK */
 619 }
 620
 621 /*
 622  * free buffers and private struct
 623  */
 624 static void ni65_free_buffer(struct priv *p)
 625 {
 626         int i;
 627
 628         if(!p)
 629                 return;
 630
 631         for(i=0;i<TMDNUM;i++) {
 632                 if(p->tmdbounce[i])
 633                         kfree(p->tmdbounce[i]);
 634 #ifdef XMT_VIA_SKB
 635                 if(p->tmd_skb[i])
 636                         dev_kfree_skb(p->tmd_skb[i]);
 637 #endif
 638         }
 639
 640         for(i=0;i<RMDNUM;i++)
 641         {
 642 #ifdef RCV_VIA_SKB
 643                 if(p->recv_skb[i])
 644                         dev_kfree_skb(p->recv_skb[i]);
 645 #else
 646                 if(p->recvbounce[i])
 647                         kfree(p->recvbounce[i]);
 648 #endif
 649         }
 650         if(p->self)
 651                 kfree(p->self);
 652 }
 653
 654
 655 /*
 656  * stop and (re)start lance .. e.g after an error
 657  */
 658 static void ni65_stop_start(struct net_device *dev,struct priv *p)
 659 {
 660         int csr0 = CSR0_INEA;
 661
 662         writedatareg(CSR0_STOP);
 663
 664         if(debuglevel > 1)
 665                 printk("ni65_stop_start\n");
 666
 667         if(p->features & INIT_RING_BEFORE_START) {
 668                 int i;
 669 #ifdef XMT_VIA_SKB
 670                 struct sk_buff *skb_save[TMDNUM];
 671 #endif
 672                 unsigned long buffer[TMDNUM];
 673                 short blen[TMDNUM];
 674
 675                 if(p->xmit_queued) {
 676                         while(1) {
 677                                 if((p->tmdhead[p->tmdlast].u.s.status & XMIT_OWN))
 678                                         break;
 679                                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
 680                                 if(p->tmdlast == p->tmdnum)
 681                                         break;
 682                         }
 683                 }
 684
 685                 for(i=0;i<TMDNUM;i++) {
 686                         struct tmd *tmdp = p->tmdhead + i;
 687 #ifdef XMT_VIA_SKB
 688                         skb_save[i] = p->tmd_skb[i];
 689 #endif
 690                         buffer[i] = (u32) bus_to_virt(tmdp->u.buffer);
 691                         blen[i] = tmdp->blen;
 692                         tmdp->u.s.status = 0x0;
 693                 }
 694
 695                 for(i=0;i<RMDNUM;i++) {
 696                         struct rmd *rmdp = p->rmdhead + i;
 697                         rmdp->u.s.status = RCV_OWN;
 698                 }
 699                 p->tmdnum = p->xmit_queued = 0;
 700                 writedatareg(CSR0_STRT | csr0);
 701
 702                 for(i=0;i<TMDNUM;i++) {
 703                         int num = (i + p->tmdlast) & (TMDNUM-1);
 704                         p->tmdhead[i].u.buffer = (u32) virt_to_bus((char *)buffer[num]); /* status is part of buffer field */
 705                         p->tmdhead[i].blen = blen[num];
 706                         if(p->tmdhead[i].u.s.status & XMIT_OWN) {
 707                                  p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
 708                                  p->xmit_queued = 1;
 709          writedatareg(CSR0_TDMD | CSR0_INEA | csr0);
 710                         }
 711 #ifdef XMT_VIA_SKB
 712                         p->tmd_skb[i] = skb_save[num];
 713 #endif
 714                 }
 715                 p->rmdnum = p->tmdlast = 0;
 716                 if(!p->lock)
 717                         if (p->tmdnum || !p->xmit_queued)
 718                                 netif_wake_queue(dev);
 719                 dev->trans_start = jiffies;
 720         }
 721         else
 722                 writedatareg(CSR0_STRT | csr0);
 723 }
 724
 725 /*
 726  * init lance (write init-values .. init-buffers) (open-helper)
 727  */
 728 static int ni65_lance_reinit(struct net_device *dev)
 729 {
 730          int i;
 731          struct priv *p = (struct priv *) dev->priv;
 732          unsigned long flags;
 733
 734          p->lock = 0;
 735          p->xmit_queued = 0;
 736
 737          flags=claim_dma_lock();
 738          disable_dma(dev->dma); /* I've never worked with dma, but we do it like the packetdriver */
 739          set_dma_mode(dev->dma,DMA_MODE_CASCADE);
 740          enable_dma(dev->dma);
 741          release_dma_lock(flags);
 742
 743          outw(inw(PORT+L_RESET),PORT+L_RESET); /* first: reset the card */
 744          if( (i=readreg(CSR0) ) != 0x4)
 745          {
 746                  printk(KERN_ERR "%s: can't RESET %s card: %04x\n",dev->name,
 747                                                         cards[p->cardno].cardname,(int) i);
 748                  flags=claim_dma_lock();
 749                  disable_dma(dev->dma);
 750                  release_dma_lock(flags);
 751                  return 0;
 752          }
 753
 754          p->rmdnum = p->tmdnum = p->tmdlast = p->tmdbouncenum = 0;
 755          for(i=0;i<TMDNUM;i++)
 756          {
 757                  struct tmd *tmdp = p->tmdhead + i;
 758 #ifdef XMT_VIA_SKB
 759                  if(p->tmd_skb[i]) {
 760                          dev_kfree_skb(p->tmd_skb[i]);
 761                          p->tmd_skb[i] = NULL;
 762                  }
 763 #endif
 764                  tmdp->u.buffer = 0x0;
 765                  tmdp->u.s.status = XMIT_START | XMIT_END;
 766                  tmdp->blen = tmdp->status2 = 0;
 767          }
 768
 769          for(i=0;i<RMDNUM;i++)
 770          {
 771                  struct rmd *rmdp = p->rmdhead + i;
 772 #ifdef RCV_VIA_SKB
 773                  rmdp->u.buffer = (u32) virt_to_bus(p->recv_skb[i]->data);
 774 #else
 775                  rmdp->u.buffer = (u32) virt_to_bus(p->recvbounce[i]);
 776 #endif
 777                  rmdp->blen = -(R_BUF_SIZE-8);
 778                  rmdp->mlen = 0;
 779                  rmdp->u.s.status = RCV_OWN;
 780          }
 781
 782          if(dev->flags & IFF_PROMISC)
 783                  ni65_init_lance(p,dev->dev_addr,0x00,M_PROM);
 784          else if(dev->mc_count || dev->flags & IFF_ALLMULTI)
 785                  ni65_init_lance(p,dev->dev_addr,0xff,0x0);
 786          else
 787                  ni65_init_lance(p,dev->dev_addr,0x00,0x00);
 788
 789         /*
 790          * ni65_set_lance_mem() sets L_ADDRREG to CSR0
 791          * NOW, WE WILL NEVER CHANGE THE L_ADDRREG, CSR0 IS ALWAYS SELECTED
 792          */
 793
 794          if(inw(PORT+L_DATAREG) & CSR0_IDON)    {
 795                  ni65_set_performance(p);
 796                                          /* init OK: start lance , enable interrupts */
 797                  writedatareg(CSR0_CLRALL | CSR0_INEA | CSR0_STRT);
 798                  return 1; /* ->OK */
 799          }
 800          printk(KERN_ERR "%s: can't init lance, status: %04x\n",dev->name,(int) inw(PORT+L_DATAREG));
 801          flags=claim_dma_lock();
 802          disable_dma(dev->dma);
 803          release_dma_lock(flags);
 804          return 0; /* ->Error */
 805 }
 806
 807 /*
 808  * interrupt handler
 809  */
 810 static void ni65_interrupt(int irq, void * dev_id, struct pt_regs * regs)
 811 {
 812         int csr0 = 0;
 813         struct net_device *dev = dev_id;
 814         struct priv *p;
 815         int bcnt = 32;
 816
 817         p = (struct priv *) dev->priv;
 818
 819         while(--bcnt) {
 820                 csr0 = inw(PORT+L_DATAREG);
 821
 822 #if 0
 823                 writedatareg( (csr0 & CSR0_CLRALL) ); /* ack interrupts, disable int. */
 824 #else
 825                 writedatareg( (csr0 & CSR0_CLRALL) | CSR0_INEA ); /* ack interrupts, interrupts enabled */
 826 #endif
 827
 828                 if(!(csr0 & (CSR0_ERR | CSR0_RINT | CSR0_TINT)))
 829                         break;
 830
 831                 if(csr0 & CSR0_RINT) /* RECV-int? */
 832                         ni65_recv_intr(dev,csr0);
 833                 if(csr0 & CSR0_TINT) /* XMIT-int? */
 834                         ni65_xmit_intr(dev,csr0);
 835
 836                 if(csr0 & CSR0_ERR)
 837                 {
 838                         struct priv *p = (struct priv *) dev->priv;
 839                         if(debuglevel > 1)
 840                                 printk("%s: general error: %04x.\n",dev->name,csr0);
 841                         if(csr0 & CSR0_BABL)
 842                                 p->stats.tx_errors++;
 843                         if(csr0 & CSR0_MISS) {
 844                                 int i;
 845                                 for(i=0;i<RMDNUM;i++)
 846                                         printk("%02x ",p->rmdhead[i].u.s.status);
 847                                 printk("\n");
 848                                 p->stats.rx_errors++;
 849                         }
 850                         if(csr0 & CSR0_MERR) {
 851                                 if(debuglevel > 1)
 852                                         printk("%s: Ooops .. memory error: %04x.\n",dev->name,csr0);
 853                                 ni65_stop_start(dev,p);
 854                         }
 855                 }
 856         }
 857
 858 #ifdef RCV_PARANOIA_CHECK
 859 {
 860  int j;
 861  for(j=0;j<RMDNUM;j++)
 862  {
 863         struct priv *p = (struct priv *) dev->priv;
 864         int i,k,num1,num2;
 865         for(i=RMDNUM-1;i>0;i--) {
 866                  num2 = (p->rmdnum + i) & (RMDNUM-1);
 867                  if(!(p->rmdhead[num2].u.s.status & RCV_OWN))
 868                                 break;
 869         }
 870
 871         if(i) {
 872                 for(k=0;k<RMDNUM;k++) {
 873                         num1 = (p->rmdnum + k) & (RMDNUM-1);
 874                         if(!(p->rmdhead[num1].u.s.status & RCV_OWN))
 875                                 break;
 876                 }
 877                 if(!k)
 878                         break;
 879
 880                 if(debuglevel > 0)
 881                 {
 882                         char buf[256],*buf1;
 883                         int k;
 884                         buf1 = buf;
 885                         for(k=0;k<RMDNUM;k++) {
 886                                 sprintf(buf1,"%02x ",(p->rmdhead[k].u.s.status)); /* & RCV_OWN) ); */
 887                                 buf1 += 3;
 888                         }
 889                         *buf1 = 0;
 890                         printk(KERN_ERR "%s: Ooops, receive ring corrupted %2d %2d | %s\n",dev->name,p->rmdnum,i,buf);
 891                 }
 892
 893                 p->rmdnum = num1;
 894                 ni65_recv_intr(dev,csr0);
 895                 if((p->rmdhead[num2].u.s.status & RCV_OWN))
 896                         break;  /* ok, we are 'in sync' again */
 897         }
 898         else
 899                 break;
 900  }
 901 }
 902 #endif
 903
 904         if( (csr0 & (CSR0_RXON | CSR0_TXON)) != (CSR0_RXON | CSR0_TXON) ) {
 905                 printk("%s: RX or TX was offline -> restart\n",dev->name);
 906                 ni65_stop_start(dev,p);
 907         }
 908         else
 909                 writedatareg(CSR0_INEA);
 910
 911         return;
 912 }
 913
 914 /*
 915  * We have received an Xmit-Interrupt ..
 916  * send a new packet if necessary
 917  */
 918 static void ni65_xmit_intr(struct net_device *dev,int csr0)
 919 {
 920         struct priv *p = (struct priv *) dev->priv;
 921
 922         while(p->xmit_queued)
 923         {
 924                 struct tmd *tmdp = p->tmdhead + p->tmdlast;
 925                 int tmdstat = tmdp->u.s.status;
 926
 927                 if(tmdstat & XMIT_OWN)
 928                         break;
 929
 930                 if(tmdstat & XMIT_ERR)
 931                 {
 932 #if 0
 933                         if(tmdp->status2 & XMIT_TDRMASK && debuglevel > 3)
 934                                 printk(KERN_ERR "%s: tdr-problems (e.g. no resistor)\n",dev->name);
 935 #endif
 936                  /* checking some errors */
 937                         if(tmdp->status2 & XMIT_RTRY)
 938                                 p->stats.tx_aborted_errors++;
 939                         if(tmdp->status2 & XMIT_LCAR)
 940                                 p->stats.tx_carrier_errors++;
 941                         if(tmdp->status2 & (XMIT_BUFF | XMIT_UFLO )) {
 942                 /* this stops the xmitter */
 943                                 p->stats.tx_fifo_errors++;
 944                                 if(debuglevel > 0)
 945                                         printk(KERN_ERR "%s: Xmit FIFO/BUFF error\n",dev->name);
 946                                 if(p->features & INIT_RING_BEFORE_START) {
 947                                         tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;    /* test: resend this frame */
 948                                         ni65_stop_start(dev,p);
 949                                         break;  /* no more Xmit processing .. */
 950                                 }
 951                                 else
 952                                  ni65_stop_start(dev,p);
 953                         }
 954                         if(debuglevel > 2)
 955                                 printk(KERN_ERR "%s: xmit-error: %04x %02x-%04x\n",dev->name,csr0,(int) tmdstat,(int) tmdp->status2);
 956                         if(!(csr0 & CSR0_BABL)) /* don't count errors twice */
 957                                 p->stats.tx_errors++;
 958                         tmdp->status2 = 0;
 959                 }
 960                 else {
 961                         p->stats.tx_bytes -= (short)(tmdp->blen);
 962                         p->stats.tx_packets++;
 963                 }
 964
 965 #ifdef XMT_VIA_SKB
 966                 if(p->tmd_skb[p->tmdlast]) {
 967                          dev_kfree_skb_irq(p->tmd_skb[p->tmdlast]);
 968                          p->tmd_skb[p->tmdlast] = NULL;
 969                 }
 970 #endif
 971
 972                 p->tmdlast = (p->tmdlast + 1) & (TMDNUM-1);
 973                 if(p->tmdlast == p->tmdnum)
 974                         p->xmit_queued = 0;
 975         }
 976         netif_wake_queue(dev);
 977 }
 978
 979 /*
 980  * We have received a packet
 981  */
 982 static void ni65_recv_intr(struct net_device *dev,int csr0)
 983 {
 984         struct rmd *rmdp;
 985         int rmdstat,len;
 986         int cnt=0;
 987         struct priv *p = (struct priv *) dev->priv;
 988
 989         rmdp = p->rmdhead + p->rmdnum;
 990         while(!( (rmdstat = rmdp->u.s.status) & RCV_OWN))
 991         {
 992                 cnt++;
 993                 if( (rmdstat & (RCV_START | RCV_END | RCV_ERR)) != (RCV_START | RCV_END) ) /* error or oversized? */
 994                 {
 995                         if(!(rmdstat & RCV_ERR)) {
 996                                 if(rmdstat & RCV_START)
 997                                 {
 998                                         p->stats.rx_length_errors++;
 999                                         printk(KERN_ERR "%s: recv, packet too long: %d\n",dev->name,rmdp->mlen & 0x0fff);
1000                                 }
1001                         }
1002                         else {
1003                                 if(debuglevel > 2)
1004                                         printk(KERN_ERR "%s: receive-error: %04x, lance-status: %04x/%04x\n",
1005                                                                         dev->name,(int) rmdstat,csr0,(int) inw(PORT+L_DATAREG) );
1006                                 if(rmdstat & RCV_FRAM)
1007                                         p->stats.rx_frame_errors++;
1008                                 if(rmdstat & RCV_OFLO)
1009                                         p->stats.rx_over_errors++;
1010                                 if(rmdstat & RCV_CRC)
1011                                         p->stats.rx_crc_errors++;
1012                                 if(rmdstat & RCV_BUF_ERR)
1013                                         p->stats.rx_fifo_errors++;
1014                         }
1015                         if(!(csr0 & CSR0_MISS)) /* don't count errors twice */
1016                                 p->stats.rx_errors++;
1017                 }
1018                 else if( (len = (rmdp->mlen & 0x0fff) - 4) >= 60)
1019                 {
1020 #ifdef RCV_VIA_SKB
1021                         struct sk_buff *skb = alloc_skb(R_BUF_SIZE+2+16,GFP_ATOMIC);
1022                         if (skb)
1023                                 skb_reserve(skb,16);
1024 #else
1025                         struct sk_buff *skb = dev_alloc_skb(len+2);
1026 #endif
1027                         if(skb)
1028                         {
1029                                 skb_reserve(skb,2);
1030         skb->dev = dev;
1031 #ifdef RCV_VIA_SKB
1032                                 if( (unsigned long) (skb->data + R_BUF_SIZE) > 0x1000000) {
1033                                         skb_put(skb,len);
1034                                         eth_copy_and_sum(skb, (unsigned char *)(p->recv_skb[p->rmdnum]->data),len,0);
1035                                 }
1036                                 else {
1037                                         struct sk_buff *skb1 = p->recv_skb[p->rmdnum];
1038                                         skb_put(skb,R_BUF_SIZE);
1039                                         p->recv_skb[p->rmdnum] = skb;
1040                                         rmdp->u.buffer = (u32) virt_to_bus(skb->data);
1041                                         skb = skb1;
1042                                         skb_trim(skb,len);
1043                                 }
1044 #else
1045                                 skb_put(skb,len);
1046                                 eth_copy_and_sum(skb, (unsigned char *) p->recvbounce[p->rmdnum],len,0);
1047 #endif
1048                                 p->stats.rx_packets++;
1049                                 p->stats.rx_bytes += len;
1050                                 skb->protocol=eth_type_trans(skb,dev);
1051                                 netif_rx(skb);
1052                                 dev->last_rx = jiffies;
1053                         }
1054                         else
1055                         {
1056                                 printk(KERN_ERR "%s: can't alloc new sk_buff\n",dev->name);
1057                                 p->stats.rx_dropped++;
1058                         }
1059                 }
1060                 else {
1061                         printk(KERN_INFO "%s: received runt packet\n",dev->name);
1062                         p->stats.rx_errors++;
1063                 }
1064                 rmdp->blen = -(R_BUF_SIZE-8);
1065                 rmdp->mlen = 0;
1066                 rmdp->u.s.status = RCV_OWN; /* change owner */
1067                 p->rmdnum = (p->rmdnum + 1) & (RMDNUM-1);
1068                 rmdp = p->rmdhead + p->rmdnum;
1069         }
1070 }
1071
1072 /*
1073  * kick xmitter ..
1074  */
1075
1076 static void ni65_timeout(struct net_device *dev)
1077 {
1078         int i;
1079         struct priv *p = (struct priv *) dev->priv;
1080
1081         printk(KERN_ERR "%s: xmitter timed out, try to restart!\n",dev->name);
1082         for(i=0;i<TMDNUM;i++)
1083                 printk("%02x ",p->tmdhead[i].u.s.status);
1084         printk("\n");
1085         ni65_lance_reinit(dev);
1086         dev->trans_start = jiffies;
1087         netif_wake_queue(dev);
1088 }
1089
1090 /*
1091  *      Send a packet
1092  */
1093
1094 static int ni65_send_packet(struct sk_buff *skb, struct net_device *dev)
1095 {
1096         struct priv *p = (struct priv *) dev->priv;
1097
1098         netif_stop_queue(dev);
1099
1100         if (test_and_set_bit(0, (void*)&p->lock)) {
1101                 printk(KERN_ERR "%s: Queue was locked.\n", dev->name);
1102                 return 1;
1103         }
1104
1105         {
1106                 short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1107                 struct tmd *tmdp;
1108                 unsigned long flags;
1109
1110 #ifdef XMT_VIA_SKB
1111                 if( (unsigned long) (skb->data + skb->len) > 0x1000000) {
1112 #endif
1113
1114                         memcpy((char *) p->tmdbounce[p->tmdbouncenum] ,(char *)skb->data,
1115                                                          (skb->len > T_BUF_SIZE) ? T_BUF_SIZE : skb->len);
1116                         if(len > skb->len)
1117                                 memset((char *)p->tmdbounce[p->tmdbouncenum]+skb->len, 0, len-skb->len);
1118                         dev_kfree_skb (skb);
1119
1120                         save_flags(flags);
1121                         cli();
1122
1123                         tmdp = p->tmdhead + p->tmdnum;
1124                         tmdp->u.buffer = (u32) virt_to_bus(p->tmdbounce[p->tmdbouncenum]);
1125                         p->tmdbouncenum = (p->tmdbouncenum + 1) & (TMDNUM - 1);
1126
1127 #ifdef XMT_VIA_SKB
1128                 }
1129                 else {
1130                         save_flags(flags);
1131                         cli();
1132
1133                         tmdp = p->tmdhead + p->tmdnum;
1134                         tmdp->u.buffer = (u32) virt_to_bus(skb->data);
1135                         p->tmd_skb[p->tmdnum] = skb;
1136                 }
1137 #endif
1138                 tmdp->blen = -len;
1139
1140                 tmdp->u.s.status = XMIT_OWN | XMIT_START | XMIT_END;
1141                 writedatareg(CSR0_TDMD | CSR0_INEA); /* enable xmit & interrupt */
1142
1143                 p->xmit_queued = 1;
1144                 p->tmdnum = (p->tmdnum + 1) & (TMDNUM-1);
1145
1146                 if(p->tmdnum != p->tmdlast)
1147                         netif_wake_queue(dev);
1148
1149                 p->lock = 0;
1150                 dev->trans_start = jiffies;
1151
1152                 restore_flags(flags);
1153         }
1154
1155         return 0;
1156 }
1157
1158 static struct net_device_stats *ni65_get_stats(struct net_device *dev)
1159 {
1160
1161 #if 0
1162         int i;
1163         struct priv *p = (struct priv *) dev->priv;
1164         for(i=0;i<RMDNUM;i++)
1165         {
1166                 struct rmd *rmdp = p->rmdhead + ((p->rmdnum + i) & (RMDNUM-1));
1167                 printk("%02x ",rmdp->u.s.status);
1168         }
1169         printk("\n");
1170 #endif
1171
1172         return &((struct priv *) dev->priv)->stats;
1173 }
1174
1175 static void set_multicast_list(struct net_device *dev)
1176 {
1177         if(!ni65_lance_reinit(dev))
1178                 printk(KERN_ERR "%s: Can't switch card into MC mode!\n",dev->name);
1179         netif_wake_queue(dev);
1180 }
1181
1182 #ifdef MODULE
1183 static struct net_device dev_ni65 = { base_addr: 0x360, irq: 9, init: ni65_probe };
1184
1185 /* set: io,irq,dma or set it when calling insmod */
1186 static int irq;
1187 static int io;
1188 static int dma;
1189
1190 MODULE_PARM(irq, "i");
1191 MODULE_PARM(io, "i");
1192 MODULE_PARM(dma, "i");
1193 MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)");
1194 MODULE_PARM_DESC(io, "ni6510 I/O base address");
1195 MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)");
1196
1197 int init_module(void)
1198 {
1199         dev_ni65.irq = irq;
1200         dev_ni65.dma = dma;
1201         dev_ni65.base_addr = io;
1202         if (register_netdev(&dev_ni65) != 0)
1203                 return -EIO;
1204         return 0;
1205 }
1206
1207 void cleanup_module(void)
1208 {
1209         struct priv *p;
1210         p = (struct priv *) dev_ni65.priv;
1211         if(!p) {
1212                 printk("Ooops .. no private struct\n");
1213                 return;
1214         }
1215         disable_dma(dev_ni65.dma);
1216         free_dma(dev_ni65.dma);
1217         unregister_netdev(&dev_ni65);
1218         release_region(dev_ni65.base_addr,cards[p->cardno].total_size);
1219         ni65_free_buffer(p);
1220         dev_ni65.priv = NULL;
1221 }
1222 #endif /* MODULE */
1223 MODULE_LICENSE("GPL");
1224
1225 /*
1226  * END of ni65.c
1227  */