1/* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard. 2 * 3 * Copyright 1996,1997,2006 Jan-Pascal van Best and Andreas Mohr. 4 * 5 * This software may be used and distributed according to the terms 6 * of the GNU General Public License, incorporated herein by reference. 7 * 8 * The authors may be reached as: 9 * janpascal@vanbest.org andi@lisas.de 10 * 11 * Sources: 12 * Donald Becker's "skeleton.c" 13 * Crynwr ni5010 packet driver 14 * 15 * Changes: 16 * v0.0: First test version 17 * v0.1: First working version 18 * v0.2: 19 * v0.3->v0.90: Now demand setting io and irq when loading as module 20 * 970430 v0.91: modified for Linux 2.1.14 21 * v0.92: Implemented Andreas' (better) NI5010 probe 22 * 970503 v0.93: Fixed auto-irq failure on warm reboot (JB) 23 * 970623 v1.00: First kernel version (AM) 24 * 970814 v1.01: Added detection of onboard receive buffer size (AM) 25 * 060611 v1.02: slight cleanup: email addresses, driver modernization. 26 * Bugs: 27 * - not SMP-safe (no locking of I/O accesses) 28 * - Note that you have to patch ifconfig for the new /proc/net/dev 29 * format. It gives incorrect stats otherwise. 30 * 31 * To do: 32 * Fix all bugs :-) 33 * Move some stuff to chipset_init() 34 * Handle xmt errors other than collisions 35 * Complete merge with Andreas' driver 36 * Implement ring buffers (Is this useful? You can't squeeze 37 * too many packet in a 2k buffer!) 38 * Implement DMA (Again, is this useful? Some docs say DMA is 39 * slower than programmed I/O) 40 * 41 * Compile with: 42 * gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ \ 43 * -DMODULE -c ni5010.c 44 * 45 * Insert with e.g.: 46 * insmod ni5010.ko io=0x300 irq=5 47 */ 48 49#include <linux/module.h> 50#include <linux/kernel.h> 51#include <linux/string.h> 52#include <linux/errno.h> 53#include <linux/ioport.h> 54#include <linux/slab.h> 55#include <linux/interrupt.h> 56#include <linux/delay.h> 57#include <linux/init.h> 58#include <linux/bitops.h> 59#include <asm/io.h> 60#include <asm/dma.h> 61 62#include <linux/netdevice.h> 63#include <linux/etherdevice.h> 64#include <linux/skbuff.h> 65 66#include "ni5010.h" 67 68static const char boardname[] = "NI5010"; 69static char version[] __initdata = 70 "ni5010.c: v1.02 20060611 Jan-Pascal van Best and Andreas Mohr\n"; 71 72/* bufsize_rcv == 0 means autoprobing */ 73static unsigned int bufsize_rcv; 74 75#define JUMPERED_INTERRUPTS /* IRQ line jumpered on board */ 76#undef JUMPERED_DMA /* No DMA used */ 77#undef FULL_IODETECT /* Only detect in portlist */ 78 79#ifndef FULL_IODETECT 80/* A zero-terminated list of I/O addresses to be probed. */ 81static unsigned int ports[] __initdata = 82 { 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 }; 83#endif 84 85/* Use 0 for production, 1 for verification, >2 for debug */ 86#ifndef NI5010_DEBUG 87#define NI5010_DEBUG 0 88#endif 89 90/* Information that needs to be kept for each board. */ 91struct ni5010_local { 92 struct net_device_stats stats; 93 int o_pkt_size; 94 spinlock_t lock; 95}; 96 97/* Index to functions, as function prototypes. */ 98 99static int ni5010_probe1(struct net_device *dev, int ioaddr); 100static int ni5010_open(struct net_device *dev); 101static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev); 102static irqreturn_t ni5010_interrupt(int irq, void *dev_id); 103static void ni5010_rx(struct net_device *dev); 104static void ni5010_timeout(struct net_device *dev); 105static int ni5010_close(struct net_device *dev); 106static struct net_device_stats *ni5010_get_stats(struct net_device *dev); 107static void ni5010_set_multicast_list(struct net_device *dev); 108static void reset_receiver(struct net_device *dev); 109 110static int process_xmt_interrupt(struct net_device *dev); 111#define tx_done(dev) 1 112static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad); 113static void chipset_init(struct net_device *dev, int startp); 114static void dump_packet(void *buf, int len); 115static void ni5010_show_registers(struct net_device *dev); 116 117static int io; 118static int irq; 119 120struct net_device * __init ni5010_probe(int unit) 121{ 122 struct net_device *dev = alloc_etherdev(sizeof(struct ni5010_local)); 123 int *port; 124 int err = 0; 125 126 if (!dev) 127 return ERR_PTR(-ENOMEM); 128 129 if (unit >= 0) { 130 sprintf(dev->name, "eth%d", unit); 131 netdev_boot_setup_check(dev); 132 io = dev->base_addr; 133 irq = dev->irq; 134 } 135 136 PRINTK2((KERN_DEBUG "%s: Entering ni5010_probe\n", dev->name)); 137 138 SET_MODULE_OWNER(dev); 139 140 if (io > 0x1ff) { /* Check a single specified location. */ 141 err = ni5010_probe1(dev, io); 142 } else if (io != 0) { /* Don't probe at all. */ 143 err = -ENXIO; 144 } else { 145#ifdef FULL_IODETECT 146 for (io=0x200; io<0x400 && ni5010_probe1(dev, io) ; io+=0x20) 147 ; 148 if (io == 0x400) 149 err = -ENODEV; 150 151#else 152 for (port = ports; *port && ni5010_probe1(dev, *port); port++) 153 ; 154 if (!*port) 155 err = -ENODEV; 156#endif /* FULL_IODETECT */ 157 } 158 if (err) 159 goto out; 160 err = register_netdev(dev); 161 if (err) 162 goto out1; 163 return dev; 164out1: 165 release_region(dev->base_addr, NI5010_IO_EXTENT); 166out: 167 free_netdev(dev); 168 return ERR_PTR(err); 169} 170 171static inline int rd_port(int ioaddr) 172{ 173 inb(IE_RBUF); 174 return inb(IE_SAPROM); 175} 176 177static void __init trigger_irq(int ioaddr) 178{ 179 outb(0x00, EDLC_RESET); /* Clear EDLC hold RESET state */ 180 outb(0x00, IE_RESET); /* Board reset */ 181 outb(0x00, EDLC_XMASK); /* Disable all Xmt interrupts */ 182 outb(0x00, EDLC_RMASK); /* Disable all Rcv interrupt */ 183 outb(0xff, EDLC_XCLR); /* Clear all pending Xmt interrupts */ 184 outb(0xff, EDLC_RCLR); /* Clear all pending Rcv interrupts */ 185 /* 186 * Transmit packet mode: Ignore parity, Power xcvr, 187 * Enable loopback 188 */ 189 outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); 190 outb(RMD_BROADCAST, EDLC_RMODE); /* Receive normal&broadcast */ 191 outb(XM_ALL, EDLC_XMASK); /* Enable all Xmt interrupts */ 192 udelay(50); 193 outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */ 194} 195 196/* 197 * This is the real probe routine. Linux has a history of friendly device 198 * probes on the ISA bus. A good device probes avoids doing writes, and 199 * verifies that the correct device exists and functions. 200 */ 201 202static int __init ni5010_probe1(struct net_device *dev, int ioaddr) 203{ 204 static unsigned version_printed; 205 struct ni5010_local *lp; 206 int i; 207 unsigned int data = 0; 208 int boguscount = 40; 209 int err = -ENODEV; 210 211 dev->base_addr = ioaddr; 212 dev->irq = irq; 213 214 if (!request_region(ioaddr, NI5010_IO_EXTENT, boardname)) 215 return -EBUSY; 216 217 /* 218 * This is no "official" probe method, I've rather tested which 219 * probe works best with my seven NI5010 cards 220 * (they have very different serial numbers) 221 * Suggestions or failure reports are very, very welcome ! 222 * But I think it is a relatively good probe method 223 * since it doesn't use any "outb" 224 * It should be nearly 100% reliable ! 225 * well-known WARNING: this probe method (like many others) 226 * will hang the system if a NE2000 card region is probed ! 227 * 228 * - Andreas 229 */ 230 231 PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n", 232 dev->name, ioaddr)); 233 234 if (inb(ioaddr+0) == 0xff) 235 goto out; 236 237 while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & 238 rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff) 239 { 240 if (boguscount-- == 0) 241 goto out; 242 } 243 244 PRINTK2((KERN_DEBUG "%s: I/O #1 passed!\n", dev->name)); 245 246 for (i=0; i<32; i++) 247 if ( (data = rd_port(ioaddr)) != 0xff) break; 248 if (data==0xff) 249 goto out; 250 251 PRINTK2((KERN_DEBUG "%s: I/O #2 passed!\n", dev->name)); 252 253 if ((data != SA_ADDR0) || (rd_port(ioaddr) != SA_ADDR1) || 254 (rd_port(ioaddr) != SA_ADDR2)) 255 goto out; 256 257 for (i=0; i<4; i++) 258 rd_port(ioaddr); 259 260 if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) || 261 (rd_port(ioaddr) != NI5010_MAGICVAL2) ) 262 goto out; 263 264 PRINTK2((KERN_DEBUG "%s: I/O #3 passed!\n", dev->name)); 265 266 if (NI5010_DEBUG && version_printed++ == 0) 267 printk(KERN_INFO "%s", version); 268 269 printk("NI5010 ethercard probe at 0x%x: ", ioaddr); 270 271 dev->base_addr = ioaddr; 272 273 for (i=0; i<6; i++) { 274 outw(i, IE_GP); 275 printk("%2.2x ", dev->dev_addr[i] = inb(IE_SAPROM)); 276 } 277 278 PRINTK2((KERN_DEBUG "%s: I/O #4 passed!\n", dev->name)); 279 280#ifdef JUMPERED_INTERRUPTS 281 if (dev->irq == 0xff) 282 ; 283 else if (dev->irq < 2) { 284 unsigned long irq_mask; 285 286 PRINTK2((KERN_DEBUG "%s: I/O #5 passed!\n", dev->name)); 287 288 irq_mask = probe_irq_on(); 289 trigger_irq(ioaddr); 290 mdelay(20); 291 dev->irq = probe_irq_off(irq_mask); 292 293 PRINTK2((KERN_DEBUG "%s: I/O #6 passed!\n", dev->name)); 294 295 if (dev->irq == 0) { 296 err = -EAGAIN; 297 printk(KERN_WARNING "%s: no IRQ found!\n", dev->name); 298 goto out; 299 } 300 PRINTK2((KERN_DEBUG "%s: I/O #7 passed!\n", dev->name)); 301 } else if (dev->irq == 2) { 302 dev->irq = 9; 303 } 304#endif /* JUMPERED_INTERRUPTS */ 305 PRINTK2((KERN_DEBUG "%s: I/O #9 passed!\n", dev->name)); 306 307 /* DMA is not supported (yet?), so no use detecting it */ 308 lp = netdev_priv(dev); 309 310 spin_lock_init(&lp->lock); 311 312 PRINTK2((KERN_DEBUG "%s: I/O #10 passed!\n", dev->name)); 313 314/* get the size of the onboard receive buffer 315 * higher addresses than bufsize are wrapped into real buffer 316 * i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer 317 */ 318 if (!bufsize_rcv) { 319 outb(1, IE_MMODE); /* Put Rcv buffer on system bus */ 320 outw(0, IE_GP); /* Point GP at start of packet */ 321 outb(0, IE_RBUF); /* set buffer byte 0 to 0 */ 322 for (i = 1; i < 0xff; i++) { 323 outw(i << 8, IE_GP); /* Point GP at packet size to be tested */ 324 outb(i, IE_RBUF); 325 outw(0x0, IE_GP); /* Point GP at start of packet */ 326 data = inb(IE_RBUF); 327 if (data == i) break; 328 } 329 bufsize_rcv = i << 8; 330 outw(0, IE_GP); /* Point GP at start of packet */ 331 outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */ 332 } 333 printk("-> bufsize rcv/xmt=%d/%d\n", bufsize_rcv, NI5010_BUFSIZE); 334 memset(dev->priv, 0, sizeof(struct ni5010_local)); 335 336 dev->open = ni5010_open; 337 dev->stop = ni5010_close; 338 dev->hard_start_xmit = ni5010_send_packet; 339 dev->get_stats = ni5010_get_stats; 340 dev->set_multicast_list = ni5010_set_multicast_list; 341 dev->tx_timeout = ni5010_timeout; 342 dev->watchdog_timeo = HZ/20; 343 344 dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */ 345 346 /* Shut up the ni5010 */ 347 outb(0, EDLC_RMASK); /* Mask all receive interrupts */ 348 outb(0, EDLC_XMASK); /* Mask all xmit interrupts */ 349 outb(0xff, EDLC_RCLR); /* Kill all pending rcv interrupts */ 350 outb(0xff, EDLC_XCLR); /* Kill all pending xmt interrupts */ 351 352 printk(KERN_INFO "%s: NI5010 found at 0x%x, using IRQ %d", dev->name, ioaddr, dev->irq); 353 if (dev->dma) 354 printk(" & DMA %d", dev->dma); 355 printk(".\n"); 356 return 0; 357out: 358 release_region(dev->base_addr, NI5010_IO_EXTENT); 359 return err; 360} 361 362/* 363 * Open/initialize the board. This is called (in the current kernel) 364 * sometime after booting when the 'ifconfig' program is run. 365 * 366 * This routine should set everything up anew at each open, even 367 * registers that "should" only need to be set once at boot, so that 368 * there is a non-reboot way to recover if something goes wrong. 369 */ 370 371static int ni5010_open(struct net_device *dev) 372{ 373 int ioaddr = dev->base_addr; 374 int i; 375 376 PRINTK2((KERN_DEBUG "%s: entering ni5010_open()\n", dev->name)); 377 378 if (request_irq(dev->irq, &ni5010_interrupt, 0, boardname, dev)) { 379 printk(KERN_WARNING "%s: Cannot get irq %#2x\n", dev->name, dev->irq); 380 return -EAGAIN; 381 } 382 PRINTK3((KERN_DEBUG "%s: passed open() #1\n", dev->name)); 383 /* 384 * Always allocate the DMA channel after the IRQ, 385 * and clean up on failure. 386 */ 387#ifdef JUMPERED_DMA 388 if (request_dma(dev->dma, cardname)) { 389 printk(KERN_WARNING "%s: Cannot get dma %#2x\n", dev->name, dev->dma); 390 free_irq(dev->irq, NULL); 391 return -EAGAIN; 392 } 393#endif /* JUMPERED_DMA */ 394 395 PRINTK3((KERN_DEBUG "%s: passed open() #2\n", dev->name)); 396 /* Reset the hardware here. Don't forget to set the station address. */ 397 398 outb(RS_RESET, EDLC_RESET); /* Hold up EDLC_RESET while configing board */ 399 outb(0, IE_RESET); /* Hardware reset of ni5010 board */ 400 outb(XMD_LBC, EDLC_XMODE); /* Only loopback xmits */ 401 402 PRINTK3((KERN_DEBUG "%s: passed open() #3\n", dev->name)); 403 /* Set the station address */ 404 for(i = 0;i < 6; i++) { 405 outb(dev->dev_addr[i], EDLC_ADDR + i); 406 } 407 408 PRINTK3((KERN_DEBUG "%s: Initialising ni5010\n", dev->name)); 409 outb(0, EDLC_XMASK); /* No xmit interrupts for now */ 410 outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); 411 /* Normal packet xmit mode */ 412 outb(0xff, EDLC_XCLR); /* Clear all pending xmit interrupts */ 413 outb(RMD_BROADCAST, EDLC_RMODE); 414 /* Receive broadcast and normal packets */ 415 reset_receiver(dev); /* Ready ni5010 for receiving packets */ 416 417 outb(0, EDLC_RESET); /* Un-reset the ni5010 */ 418 419 netif_start_queue(dev); 420 421 if (NI5010_DEBUG) ni5010_show_registers(dev); 422 423 PRINTK((KERN_DEBUG "%s: open successful\n", dev->name)); 424 return 0; 425} 426 427static void reset_receiver(struct net_device *dev) 428{ 429 int ioaddr = dev->base_addr; 430 431 PRINTK3((KERN_DEBUG "%s: resetting receiver\n", dev->name)); 432 outw(0, IE_GP); /* Receive packet at start of buffer */ 433 outb(0xff, EDLC_RCLR); /* Clear all pending rcv interrupts */ 434 outb(0, IE_MMODE); /* Put EDLC to rcv buffer */ 435 outb(MM_EN_RCV, IE_MMODE); /* Enable rcv */ 436 outb(0xff, EDLC_RMASK); /* Enable all rcv interrupts */ 437} 438 439static void ni5010_timeout(struct net_device *dev) 440{ 441 printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name, 442 tx_done(dev) ? "IRQ conflict" : "network cable problem"); 443 /* Try to restart the adaptor. */ 444 chipset_init(dev, 1); 445 dev->trans_start = jiffies; 446 netif_wake_queue(dev); 447} 448 449static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev) 450{ 451 int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; 452 453 PRINTK2((KERN_DEBUG "%s: entering ni5010_send_packet\n", dev->name)); 454 455 /* 456 * Block sending 457 */ 458 459 netif_stop_queue(dev); 460 hardware_send_packet(dev, (unsigned char *)skb->data, skb->len, length-skb->len); 461 dev->trans_start = jiffies; 462 dev_kfree_skb (skb); 463 return 0; 464} 465 466/* 467 * The typical workload of the driver: 468 * Handle the network interface interrupts. 469 */ 470static irqreturn_t ni5010_interrupt(int irq, void *dev_id) 471{ 472 struct net_device *dev = dev_id; 473 struct ni5010_local *lp; 474 int ioaddr, status; 475 int xmit_was_error = 0; 476 477 PRINTK2((KERN_DEBUG "%s: entering ni5010_interrupt\n", dev->name)); 478 479 ioaddr = dev->base_addr; 480 lp = netdev_priv(dev); 481 482 spin_lock(&lp->lock); 483 status = inb(IE_ISTAT); 484 PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02x\n", dev->name, status)); 485 486 if ((status & IS_R_INT) == 0) ni5010_rx(dev); 487 488 if ((status & IS_X_INT) == 0) { 489 xmit_was_error = process_xmt_interrupt(dev); 490 } 491 492 if ((status & IS_DMA_INT) == 0) { 493 PRINTK((KERN_DEBUG "%s: DMA complete (?)\n", dev->name)); 494 outb(0, IE_DMA_RST); /* Reset DMA int */ 495 } 496 497 if (!xmit_was_error) 498 reset_receiver(dev); 499 spin_unlock(&lp->lock); 500 return IRQ_HANDLED; 501} 502 503 504static void dump_packet(void *buf, int len) 505{ 506 int i; 507 508 printk(KERN_DEBUG "Packet length = %#4x\n", len); 509 for (i = 0; i < len; i++){ 510 if (i % 16 == 0) printk(KERN_DEBUG "%#4.4x", i); 511 if (i % 2 == 0) printk(" "); 512 printk("%2.2x", ((unsigned char *)buf)[i]); 513 if (i % 16 == 15) printk("\n"); 514 } 515 printk("\n"); 516 517 return; 518} 519 520/* We have a good packet, get it out of the buffer. */ 521static void ni5010_rx(struct net_device *dev) 522{ 523 struct ni5010_local *lp = netdev_priv(dev); 524 int ioaddr = dev->base_addr; 525 unsigned char rcv_stat; 526 struct sk_buff *skb; 527 int i_pkt_size; 528 529 PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name)); 530 531 rcv_stat = inb(EDLC_RSTAT); 532 PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2x\n", dev->name, rcv_stat)); 533 534 if ( (rcv_stat & RS_VALID_BITS) != RS_PKT_OK) { 535 PRINTK((KERN_INFO "%s: receive error.\n", dev->name)); 536 lp->stats.rx_errors++; 537 if (rcv_stat & RS_RUNT) lp->stats.rx_length_errors++; 538 if (rcv_stat & RS_ALIGN) lp->stats.rx_frame_errors++; 539 if (rcv_stat & RS_CRC_ERR) lp->stats.rx_crc_errors++; 540 if (rcv_stat & RS_OFLW) lp->stats.rx_fifo_errors++; 541 outb(0xff, EDLC_RCLR); /* Clear the interrupt */ 542 return; 543 } 544 545 outb(0xff, EDLC_RCLR); /* Clear the interrupt */ 546 547 i_pkt_size = inw(IE_RCNT); 548 if (i_pkt_size > ETH_FRAME_LEN || i_pkt_size < 10 ) { 549 PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4x\n", 550 dev->name, i_pkt_size)); 551 lp->stats.rx_errors++; 552 lp->stats.rx_length_errors++; 553 return; 554 } 555 556 /* Malloc up new buffer. */ 557 skb = dev_alloc_skb(i_pkt_size + 3); 558 if (skb == NULL) { 559 printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); 560 lp->stats.rx_dropped++; 561 return; 562 } 563 564 skb_reserve(skb, 2); 565 566 /* Read packet into buffer */ 567 outb(MM_MUX, IE_MMODE); /* Rcv buffer to system bus */ 568 outw(0, IE_GP); /* Seek to beginning of packet */ 569 insb(IE_RBUF, skb_put(skb, i_pkt_size), i_pkt_size); 570 571 if (NI5010_DEBUG >= 4) 572 dump_packet(skb->data, skb->len); 573 574 skb->protocol = eth_type_trans(skb,dev); 575 netif_rx(skb); 576 dev->last_rx = jiffies; 577 lp->stats.rx_packets++; 578 lp->stats.rx_bytes += i_pkt_size; 579 580 PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n", 581 dev->name, i_pkt_size)); 582 583} 584 585static int process_xmt_interrupt(struct net_device *dev) 586{ 587 struct ni5010_local *lp = netdev_priv(dev); 588 int ioaddr = dev->base_addr; 589 int xmit_stat; 590 591 PRINTK2((KERN_DEBUG "%s: entering process_xmt_interrupt\n", dev->name)); 592 593 xmit_stat = inb(EDLC_XSTAT); 594 PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2x\n", dev->name, xmit_stat)); 595 596 outb(0, EDLC_XMASK); /* Disable xmit IRQ's */ 597 outb(0xff, EDLC_XCLR); /* Clear all pending xmit IRQ's */ 598 599 if (xmit_stat & XS_COLL){ 600 PRINTK((KERN_DEBUG "%s: collision detected, retransmitting\n", 601 dev->name)); 602 outw(NI5010_BUFSIZE - lp->o_pkt_size, IE_GP); 603 /* outb(0, IE_MMODE); */ 604 outb(MM_EN_XMT | MM_MUX, IE_MMODE); 605 outb(XM_ALL, EDLC_XMASK); /* Enable xmt IRQ's */ 606 lp->stats.collisions++; 607 return 1; 608 } 609 610 611 lp->stats.tx_packets++; 612 lp->stats.tx_bytes += lp->o_pkt_size; 613 netif_wake_queue(dev); 614 615 PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4x\n", 616 dev->name, lp->o_pkt_size)); 617 618 return 0; 619} 620 621/* The inverse routine to ni5010_open(). */ 622static int ni5010_close(struct net_device *dev) 623{ 624 int ioaddr = dev->base_addr; 625 626 PRINTK2((KERN_DEBUG "%s: entering ni5010_close\n", dev->name)); 627#ifdef JUMPERED_INTERRUPTS 628 free_irq(dev->irq, NULL); 629#endif 630 /* Put card in held-RESET state */ 631 outb(0, IE_MMODE); 632 outb(RS_RESET, EDLC_RESET); 633 634 netif_stop_queue(dev); 635 636 PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname)); 637 return 0; 638 639} 640 641/* Get the current statistics. This may be called with the card open or 642 closed. */ 643static struct net_device_stats *ni5010_get_stats(struct net_device *dev) 644{ 645 struct ni5010_local *lp = netdev_priv(dev); 646 647 PRINTK2((KERN_DEBUG "%s: entering ni5010_get_stats\n", dev->name)); 648 649 if (NI5010_DEBUG) ni5010_show_registers(dev); 650 651 /* cli(); */ 652 /* Update the statistics from the device registers. */ 653 /* We do this in the interrupt handler */ 654 /* sti(); */ 655 656 return &lp->stats; 657} 658 659/* Set or clear the multicast filter for this adaptor. 660 num_addrs == -1 Promiscuous mode, receive all packets 661 num_addrs == 0 Normal mode, clear multicast list 662 num_addrs > 0 Multicast mode, receive normal and MC packets, and do 663 best-effort filtering. 664*/ 665static void ni5010_set_multicast_list(struct net_device *dev) 666{ 667 short ioaddr = dev->base_addr; 668 669 PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name)); 670 671 if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI) { 672 dev->flags |= IFF_PROMISC; 673 outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */ 674 PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name)); 675 } else if (dev->mc_list) { 676 /* Sorry, multicast not supported */ 677 PRINTK((KERN_DEBUG "%s: No multicast, entering broadcast mode\n", dev->name)); 678 outb(RMD_BROADCAST, EDLC_RMODE); 679 } else { 680 PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", dev->name)); 681 outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */ 682 } 683} 684 685static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad) 686{ 687 struct ni5010_local *lp = netdev_priv(dev); 688 int ioaddr = dev->base_addr; 689 unsigned long flags; 690 unsigned int buf_offs; 691 692 PRINTK2((KERN_DEBUG "%s: entering hardware_send_packet\n", dev->name)); 693 694 if (length > ETH_FRAME_LEN) { 695 PRINTK((KERN_WARNING "%s: packet too large, not possible\n", 696 dev->name)); 697 return; 698 } 699 700 if (NI5010_DEBUG) ni5010_show_registers(dev); 701 702 if (inb(IE_ISTAT) & IS_EN_XMT) { 703 PRINTK((KERN_WARNING "%s: sending packet while already transmitting, not possible\n", 704 dev->name)); 705 return; 706 } 707 708 if (NI5010_DEBUG > 3) dump_packet(buf, length); 709 710 buf_offs = NI5010_BUFSIZE - length - pad; 711 712 spin_lock_irqsave(&lp->lock, flags); 713 lp->o_pkt_size = length + pad; 714 715 outb(0, EDLC_RMASK); /* Mask all receive interrupts */ 716 outb(0, IE_MMODE); /* Put Xmit buffer on system bus */ 717 outb(0xff, EDLC_RCLR); /* Clear out pending rcv interrupts */ 718 719 outw(buf_offs, IE_GP); /* Point GP at start of packet */ 720 outsb(IE_XBUF, buf, length); /* Put data in buffer */ 721 while(pad--) 722 outb(0, IE_XBUF); 723 724 outw(buf_offs, IE_GP); /* Rewrite where packet starts */ 725 726 /* should work without that outb() (Crynwr used it) */ 727 /*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */ 728 outb(MM_EN_XMT | MM_MUX, IE_MMODE); /* Begin transmission */ 729 outb(XM_ALL, EDLC_XMASK); /* Cause interrupt after completion or fail */ 730 731 spin_unlock_irqrestore(&lp->lock, flags); 732 733 netif_wake_queue(dev); 734 735 if (NI5010_DEBUG) ni5010_show_registers(dev); 736} 737 738static void chipset_init(struct net_device *dev, int startp) 739{ 740 PRINTK3((KERN_DEBUG "%s: doing NOTHING in chipset_init\n", dev->name)); 741} 742 743static void ni5010_show_registers(struct net_device *dev) 744{ 745 int ioaddr = dev->base_addr; 746 747 PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2x\n", dev->name, inb(EDLC_XSTAT))); 748 PRINTK3((KERN_DEBUG "%s: XMASK %#2.2x\n", dev->name, inb(EDLC_XMASK))); 749 PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2x\n", dev->name, inb(EDLC_RSTAT))); 750 PRINTK3((KERN_DEBUG "%s: RMASK %#2.2x\n", dev->name, inb(EDLC_RMASK))); 751 PRINTK3((KERN_DEBUG "%s: RMODE %#2.2x\n", dev->name, inb(EDLC_RMODE))); 752 PRINTK3((KERN_DEBUG "%s: XMODE %#2.2x\n", dev->name, inb(EDLC_XMODE))); 753 PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2x\n", dev->name, inb(IE_ISTAT))); 754} 755 756#ifdef MODULE 757static struct net_device *dev_ni5010; 758 759module_param(io, int, 0); 760module_param(irq, int, 0); 761MODULE_PARM_DESC(io, "ni5010 I/O base address"); 762MODULE_PARM_DESC(irq, "ni5010 IRQ number"); 763 764static int __init ni5010_init_module(void) 765{ 766 PRINTK2((KERN_DEBUG "%s: entering init_module\n", boardname)); 767 /* 768 if(io <= 0 || irq == 0){ 769 printk(KERN_WARNING "%s: Autoprobing not allowed for modules.\n", boardname); 770 printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'\n", boardname); 771 return -EINVAL; 772 } 773 */ 774 if (io <= 0){ 775 printk(KERN_WARNING "%s: Autoprobing for modules is hazardous, trying anyway..\n", boardname); 776 } 777 778 PRINTK2((KERN_DEBUG "%s: init_module irq=%#2x, io=%#3x\n", boardname, irq, io)); 779 dev_ni5010 = ni5010_probe(-1); 780 if (IS_ERR(dev_ni5010)) 781 return PTR_ERR(dev_ni5010); 782 return 0; 783} 784 785static void __exit ni5010_cleanup_module(void) 786{ 787 PRINTK2((KERN_DEBUG "%s: entering cleanup_module\n", boardname)); 788 unregister_netdev(dev_ni5010); 789 release_region(dev_ni5010->base_addr, NI5010_IO_EXTENT); 790 free_netdev(dev_ni5010); 791} 792module_init(ni5010_init_module); 793module_exit(ni5010_cleanup_module); 794#endif /* MODULE */ 795MODULE_LICENSE("GPL"); 796 797/* 798 * Local variables: 799 * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c ni5010.c" 800 * version-control: t 801 * kept-new-versions: 5 802 * tab-width: 4 803 * End: 804 */ 805