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/interrupt.h> 55#include <linux/delay.h> 56#include <linux/init.h> 57#include <linux/bitops.h> 58#include <asm/io.h> 59#include <asm/dma.h> 60 61#include <linux/netdevice.h> 62#include <linux/etherdevice.h> 63#include <linux/skbuff.h> 64 65#include "ni5010.h" 66 67static const char boardname[] = "NI5010"; 68static char version[] __initdata = 69 "ni5010.c: v1.02 20060611 Jan-Pascal van Best and Andreas Mohr\n"; 70 71/* bufsize_rcv == 0 means autoprobing */ 72static unsigned int bufsize_rcv; 73 74#define JUMPERED_INTERRUPTS /* IRQ line jumpered on board */ 75#undef JUMPERED_DMA /* No DMA used */ 76#undef FULL_IODETECT /* Only detect in portlist */ 77 78#ifndef FULL_IODETECT 79/* A zero-terminated list of I/O addresses to be probed. */ 80static unsigned int ports[] __initdata = 81 { 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 }; 82#endif 83 84/* Use 0 for production, 1 for verification, >2 for debug */ 85#ifndef NI5010_DEBUG 86#define NI5010_DEBUG 0 87#endif 88 89/* Information that needs to be kept for each board. */ 90struct ni5010_local { 91 int o_pkt_size; 92 spinlock_t lock; 93}; 94 95/* Index to functions, as function prototypes. */ 96 97static int ni5010_probe1(struct net_device *dev, int ioaddr); 98static int ni5010_open(struct net_device *dev); 99static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev); 100static irqreturn_t ni5010_interrupt(int irq, void *dev_id); 101static void ni5010_rx(struct net_device *dev); 102static void ni5010_timeout(struct net_device *dev); 103static int ni5010_close(struct net_device *dev); 104static void ni5010_set_multicast_list(struct net_device *dev); 105static void reset_receiver(struct net_device *dev); 106 107static int process_xmt_interrupt(struct net_device *dev); 108#define tx_done(dev) 1 109static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad); 110static void chipset_init(struct net_device *dev, int startp); 111static void dump_packet(void *buf, int len); 112static void ni5010_show_registers(struct net_device *dev); 113 114static int io; 115static int irq; 116 117struct net_device * __init ni5010_probe(int unit) 118{ 119 struct net_device *dev = alloc_etherdev(sizeof(struct ni5010_local)); 120 int *port; 121 int err = 0; 122 123 if (!dev) 124 return ERR_PTR(-ENOMEM); 125 126 if (unit >= 0) { 127 sprintf(dev->name, "eth%d", unit); 128 netdev_boot_setup_check(dev); 129 io = dev->base_addr; 130 irq = dev->irq; 131 } 132 133 PRINTK2((KERN_DEBUG "%s: Entering ni5010_probe\n", dev->name)); 134 135 if (io > 0x1ff) { /* Check a single specified location. */ 136 err = ni5010_probe1(dev, io); 137 } else if (io != 0) { /* Don't probe at all. */ 138 err = -ENXIO; 139 } else { 140#ifdef FULL_IODETECT 141 for (io=0x200; io<0x400 && ni5010_probe1(dev, io) ; io+=0x20) 142 ; 143 if (io == 0x400) 144 err = -ENODEV; 145 146#else 147 for (port = ports; *port && ni5010_probe1(dev, *port); port++) 148 ; 149 if (!*port) 150 err = -ENODEV; 151#endif /* FULL_IODETECT */ 152 } 153 if (err) 154 goto out; 155 err = register_netdev(dev); 156 if (err) 157 goto out1; 158 return dev; 159out1: 160 release_region(dev->base_addr, NI5010_IO_EXTENT); 161out: 162 free_netdev(dev); 163 return ERR_PTR(err); 164} 165 166static inline int rd_port(int ioaddr) 167{ 168 inb(IE_RBUF); 169 return inb(IE_SAPROM); 170} 171 172static void __init trigger_irq(int ioaddr) 173{ 174 outb(0x00, EDLC_RESET); /* Clear EDLC hold RESET state */ 175 outb(0x00, IE_RESET); /* Board reset */ 176 outb(0x00, EDLC_XMASK); /* Disable all Xmt interrupts */ 177 outb(0x00, EDLC_RMASK); /* Disable all Rcv interrupt */ 178 outb(0xff, EDLC_XCLR); /* Clear all pending Xmt interrupts */ 179 outb(0xff, EDLC_RCLR); /* Clear all pending Rcv interrupts */ 180 /* 181 * Transmit packet mode: Ignore parity, Power xcvr, 182 * Enable loopback 183 */ 184 outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); 185 outb(RMD_BROADCAST, EDLC_RMODE); /* Receive normal&broadcast */ 186 outb(XM_ALL, EDLC_XMASK); /* Enable all Xmt interrupts */ 187 udelay(50); /* FIXME: Necessary? */ 188 outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */ 189} 190 191static const struct net_device_ops ni5010_netdev_ops = { 192 .ndo_open = ni5010_open, 193 .ndo_stop = ni5010_close, 194 .ndo_start_xmit = ni5010_send_packet, 195 .ndo_set_rx_mode = ni5010_set_multicast_list, 196 .ndo_tx_timeout = ni5010_timeout, 197 .ndo_validate_addr = eth_validate_addr, 198 .ndo_set_mac_address = eth_mac_addr, 199 .ndo_change_mtu = eth_change_mtu, 200}; 201 202/* 203 * This is the real probe routine. Linux has a history of friendly device 204 * probes on the ISA bus. A good device probes avoids doing writes, and 205 * verifies that the correct device exists and functions. 206 */ 207 208static int __init ni5010_probe1(struct net_device *dev, int ioaddr) 209{ 210 static unsigned version_printed; 211 struct ni5010_local *lp; 212 int i; 213 unsigned int data = 0; 214 int boguscount = 40; 215 int err = -ENODEV; 216 217 dev->base_addr = ioaddr; 218 dev->irq = irq; 219 220 if (!request_region(ioaddr, NI5010_IO_EXTENT, boardname)) 221 return -EBUSY; 222 223 /* 224 * This is no "official" probe method, I've rather tested which 225 * probe works best with my seven NI5010 cards 226 * (they have very different serial numbers) 227 * Suggestions or failure reports are very, very welcome ! 228 * But I think it is a relatively good probe method 229 * since it doesn't use any "outb" 230 * It should be nearly 100% reliable ! 231 * well-known WARNING: this probe method (like many others) 232 * will hang the system if a NE2000 card region is probed ! 233 * 234 * - Andreas 235 */ 236 237 PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n", 238 dev->name, ioaddr)); 239 240 if (inb(ioaddr+0) == 0xff) 241 goto out; 242 243 while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & 244 rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff) 245 { 246 if (boguscount-- == 0) 247 goto out; 248 } 249 250 PRINTK2((KERN_DEBUG "%s: I/O #1 passed!\n", dev->name)); 251 252 for (i=0; i<32; i++) 253 if ( (data = rd_port(ioaddr)) != 0xff) break; 254 if (data==0xff) 255 goto out; 256 257 PRINTK2((KERN_DEBUG "%s: I/O #2 passed!\n", dev->name)); 258 259 if ((data != SA_ADDR0) || (rd_port(ioaddr) != SA_ADDR1) || 260 (rd_port(ioaddr) != SA_ADDR2)) 261 goto out; 262 263 for (i=0; i<4; i++) 264 rd_port(ioaddr); 265 266 if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) || 267 (rd_port(ioaddr) != NI5010_MAGICVAL2) ) 268 goto out; 269 270 PRINTK2((KERN_DEBUG "%s: I/O #3 passed!\n", dev->name)); 271 272 if (NI5010_DEBUG && version_printed++ == 0) 273 printk(KERN_INFO "%s", version); 274 275 printk("NI5010 ethercard probe at 0x%x: ", ioaddr); 276 277 dev->base_addr = ioaddr; 278 279 for (i=0; i<6; i++) { 280 outw(i, IE_GP); 281 dev->dev_addr[i] = inb(IE_SAPROM); 282 } 283 printk("%pM ", dev->dev_addr); 284 285 PRINTK2((KERN_DEBUG "%s: I/O #4 passed!\n", dev->name)); 286 287#ifdef JUMPERED_INTERRUPTS 288 if (dev->irq == 0xff) 289 ; 290 else if (dev->irq < 2) { 291 unsigned long irq_mask; 292 293 PRINTK2((KERN_DEBUG "%s: I/O #5 passed!\n", dev->name)); 294 295 irq_mask = probe_irq_on(); 296 trigger_irq(ioaddr); 297 mdelay(20); 298 dev->irq = probe_irq_off(irq_mask); 299 300 PRINTK2((KERN_DEBUG "%s: I/O #6 passed!\n", dev->name)); 301 302 if (dev->irq == 0) { 303 err = -EAGAIN; 304 printk(KERN_WARNING "%s: no IRQ found!\n", dev->name); 305 goto out; 306 } 307 PRINTK2((KERN_DEBUG "%s: I/O #7 passed!\n", dev->name)); 308 } else if (dev->irq == 2) { 309 dev->irq = 9; 310 } 311#endif /* JUMPERED_INTERRUPTS */ 312 PRINTK2((KERN_DEBUG "%s: I/O #9 passed!\n", dev->name)); 313 314 /* DMA is not supported (yet?), so no use detecting it */ 315 lp = netdev_priv(dev); 316 317 spin_lock_init(&lp->lock); 318 319 PRINTK2((KERN_DEBUG "%s: I/O #10 passed!\n", dev->name)); 320 321/* get the size of the onboard receive buffer 322 * higher addresses than bufsize are wrapped into real buffer 323 * i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer 324 */ 325 if (!bufsize_rcv) { 326 outb(1, IE_MMODE); /* Put Rcv buffer on system bus */ 327 outw(0, IE_GP); /* Point GP at start of packet */ 328 outb(0, IE_RBUF); /* set buffer byte 0 to 0 */ 329 for (i = 1; i < 0xff; i++) { 330 outw(i << 8, IE_GP); /* Point GP at packet size to be tested */ 331 outb(i, IE_RBUF); 332 outw(0x0, IE_GP); /* Point GP at start of packet */ 333 data = inb(IE_RBUF); 334 if (data == i) break; 335 } 336 bufsize_rcv = i << 8; 337 outw(0, IE_GP); /* Point GP at start of packet */ 338 outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */ 339 } 340 printk("-> bufsize rcv/xmt=%d/%d\n", bufsize_rcv, NI5010_BUFSIZE); 341 342 dev->netdev_ops = &ni5010_netdev_ops; 343 dev->watchdog_timeo = HZ/20; 344 345 dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */ 346 347 /* Shut up the ni5010 */ 348 outb(0, EDLC_RMASK); /* Mask all receive interrupts */ 349 outb(0, EDLC_XMASK); /* Mask all xmit interrupts */ 350 outb(0xff, EDLC_RCLR); /* Kill all pending rcv interrupts */ 351 outb(0xff, EDLC_XCLR); /* Kill all pending xmt interrupts */ 352 353 printk(KERN_INFO "%s: NI5010 found at 0x%x, using IRQ %d", dev->name, ioaddr, dev->irq); 354 if (dev->dma) 355 printk(" & DMA %d", dev->dma); 356 printk(".\n"); 357 return 0; 358out: 359 release_region(dev->base_addr, NI5010_IO_EXTENT); 360 return err; 361} 362 363/* 364 * Open/initialize the board. This is called (in the current kernel) 365 * sometime after booting when the 'ifconfig' program is run. 366 * 367 * This routine should set everything up anew at each open, even 368 * registers that "should" only need to be set once at boot, so that 369 * there is a non-reboot way to recover if something goes wrong. 370 */ 371 372static int ni5010_open(struct net_device *dev) 373{ 374 int ioaddr = dev->base_addr; 375 int i; 376 377 PRINTK2((KERN_DEBUG "%s: entering ni5010_open()\n", dev->name)); 378 379 if (request_irq(dev->irq, ni5010_interrupt, 0, boardname, dev)) { 380 printk(KERN_WARNING "%s: Cannot get irq %#2x\n", dev->name, dev->irq); 381 return -EAGAIN; 382 } 383 PRINTK3((KERN_DEBUG "%s: passed open() #1\n", dev->name)); 384 /* 385 * Always allocate the DMA channel after the IRQ, 386 * and clean up on failure. 387 */ 388#ifdef JUMPERED_DMA 389 if (request_dma(dev->dma, cardname)) { 390 printk(KERN_WARNING "%s: Cannot get dma %#2x\n", dev->name, dev->dma); 391 free_irq(dev->irq, NULL); 392 return -EAGAIN; 393 } 394#endif /* JUMPERED_DMA */ 395 396 PRINTK3((KERN_DEBUG "%s: passed open() #2\n", dev->name)); 397 /* Reset the hardware here. Don't forget to set the station address. */ 398 399 outb(RS_RESET, EDLC_RESET); /* Hold up EDLC_RESET while configing board */ 400 outb(0, IE_RESET); /* Hardware reset of ni5010 board */ 401 outb(XMD_LBC, EDLC_XMODE); /* Only loopback xmits */ 402 403 PRINTK3((KERN_DEBUG "%s: passed open() #3\n", dev->name)); 404 /* Set the station address */ 405 for(i = 0;i < 6; i++) { 406 outb(dev->dev_addr[i], EDLC_ADDR + i); 407 } 408 409 PRINTK3((KERN_DEBUG "%s: Initialising ni5010\n", dev->name)); 410 outb(0, EDLC_XMASK); /* No xmit interrupts for now */ 411 outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE); 412 /* Normal packet xmit mode */ 413 outb(0xff, EDLC_XCLR); /* Clear all pending xmit interrupts */ 414 outb(RMD_BROADCAST, EDLC_RMODE); 415 /* Receive broadcast and normal packets */ 416 reset_receiver(dev); /* Ready ni5010 for receiving packets */ 417 418 outb(0, EDLC_RESET); /* Un-reset the ni5010 */ 419 420 netif_start_queue(dev); 421 422 if (NI5010_DEBUG) ni5010_show_registers(dev); 423 424 PRINTK((KERN_DEBUG "%s: open successful\n", dev->name)); 425 return 0; 426} 427 428static void reset_receiver(struct net_device *dev) 429{ 430 int ioaddr = dev->base_addr; 431 432 PRINTK3((KERN_DEBUG "%s: resetting receiver\n", dev->name)); 433 outw(0, IE_GP); /* Receive packet at start of buffer */ 434 outb(0xff, EDLC_RCLR); /* Clear all pending rcv interrupts */ 435 outb(0, IE_MMODE); /* Put EDLC to rcv buffer */ 436 outb(MM_EN_RCV, IE_MMODE); /* Enable rcv */ 437 outb(0xff, EDLC_RMASK); /* Enable all rcv interrupts */ 438} 439 440static void ni5010_timeout(struct net_device *dev) 441{ 442 printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name, 443 tx_done(dev) ? "IRQ conflict" : "network cable problem"); 444 /* Try to restart the adaptor. */ 445 /* FIXME: Give it a real kick here */ 446 chipset_init(dev, 1); 447 dev->trans_start = jiffies; /* prevent tx timeout */ 448 netif_wake_queue(dev); 449} 450 451static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev) 452{ 453 int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; 454 455 PRINTK2((KERN_DEBUG "%s: entering ni5010_send_packet\n", dev->name)); 456 457 /* 458 * Block sending 459 */ 460 461 netif_stop_queue(dev); 462 hardware_send_packet(dev, (unsigned char *)skb->data, skb->len, length-skb->len); 463 dev_kfree_skb (skb); 464 return NETDEV_TX_OK; 465} 466 467/* 468 * The typical workload of the driver: 469 * Handle the network interface interrupts. 470 */ 471static irqreturn_t ni5010_interrupt(int irq, void *dev_id) 472{ 473 struct net_device *dev = dev_id; 474 struct ni5010_local *lp; 475 int ioaddr, status; 476 int xmit_was_error = 0; 477 478 PRINTK2((KERN_DEBUG "%s: entering ni5010_interrupt\n", dev->name)); 479 480 ioaddr = dev->base_addr; 481 lp = netdev_priv(dev); 482 483 spin_lock(&lp->lock); 484 status = inb(IE_ISTAT); 485 PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02x\n", dev->name, status)); 486 487 if ((status & IS_R_INT) == 0) ni5010_rx(dev); 488 489 if ((status & IS_X_INT) == 0) { 490 xmit_was_error = process_xmt_interrupt(dev); 491 } 492 493 if ((status & IS_DMA_INT) == 0) { 494 PRINTK((KERN_DEBUG "%s: DMA complete (?)\n", dev->name)); 495 outb(0, IE_DMA_RST); /* Reset DMA int */ 496 } 497 498 if (!xmit_was_error) 499 reset_receiver(dev); 500 spin_unlock(&lp->lock); 501 return IRQ_HANDLED; 502} 503 504 505static void dump_packet(void *buf, int len) 506{ 507 int i; 508 509 printk(KERN_DEBUG "Packet length = %#4x\n", len); 510 for (i = 0; i < len; i++){ 511 if (i % 16 == 0) printk(KERN_DEBUG "%#4.4x", i); 512 if (i % 2 == 0) printk(" "); 513 printk("%2.2x", ((unsigned char *)buf)[i]); 514 if (i % 16 == 15) printk("\n"); 515 } 516 printk("\n"); 517} 518 519/* We have a good packet, get it out of the buffer. */ 520static void ni5010_rx(struct net_device *dev) 521{ 522 int ioaddr = dev->base_addr; 523 unsigned char rcv_stat; 524 struct sk_buff *skb; 525 int i_pkt_size; 526 527 PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name)); 528 529 rcv_stat = inb(EDLC_RSTAT); 530 PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2x\n", dev->name, rcv_stat)); 531 532 if ( (rcv_stat & RS_VALID_BITS) != RS_PKT_OK) { 533 PRINTK((KERN_INFO "%s: receive error.\n", dev->name)); 534 dev->stats.rx_errors++; 535 if (rcv_stat & RS_RUNT) dev->stats.rx_length_errors++; 536 if (rcv_stat & RS_ALIGN) dev->stats.rx_frame_errors++; 537 if (rcv_stat & RS_CRC_ERR) dev->stats.rx_crc_errors++; 538 if (rcv_stat & RS_OFLW) dev->stats.rx_fifo_errors++; 539 outb(0xff, EDLC_RCLR); /* Clear the interrupt */ 540 return; 541 } 542 543 outb(0xff, EDLC_RCLR); /* Clear the interrupt */ 544 545 i_pkt_size = inw(IE_RCNT); 546 if (i_pkt_size > ETH_FRAME_LEN || i_pkt_size < 10 ) { 547 PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4x\n", 548 dev->name, i_pkt_size)); 549 dev->stats.rx_errors++; 550 dev->stats.rx_length_errors++; 551 return; 552 } 553 554 /* Malloc up new buffer. */ 555 skb = netdev_alloc_skb(dev, i_pkt_size + 3); 556 if (skb == NULL) { 557 printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); 558 dev->stats.rx_dropped++; 559 return; 560 } 561 562 skb_reserve(skb, 2); 563 564 /* Read packet into buffer */ 565 outb(MM_MUX, IE_MMODE); /* Rcv buffer to system bus */ 566 outw(0, IE_GP); /* Seek to beginning of packet */ 567 insb(IE_RBUF, skb_put(skb, i_pkt_size), i_pkt_size); 568 569 if (NI5010_DEBUG >= 4) 570 dump_packet(skb->data, skb->len); 571 572 skb->protocol = eth_type_trans(skb,dev); 573 netif_rx(skb); 574 dev->stats.rx_packets++; 575 dev->stats.rx_bytes += i_pkt_size; 576 577 PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n", 578 dev->name, i_pkt_size)); 579} 580 581static int process_xmt_interrupt(struct net_device *dev) 582{ 583 struct ni5010_local *lp = netdev_priv(dev); 584 int ioaddr = dev->base_addr; 585 int xmit_stat; 586 587 PRINTK2((KERN_DEBUG "%s: entering process_xmt_interrupt\n", dev->name)); 588 589 xmit_stat = inb(EDLC_XSTAT); 590 PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2x\n", dev->name, xmit_stat)); 591 592 outb(0, EDLC_XMASK); /* Disable xmit IRQ's */ 593 outb(0xff, EDLC_XCLR); /* Clear all pending xmit IRQ's */ 594 595 if (xmit_stat & XS_COLL){ 596 PRINTK((KERN_DEBUG "%s: collision detected, retransmitting\n", 597 dev->name)); 598 outw(NI5010_BUFSIZE - lp->o_pkt_size, IE_GP); 599 /* outb(0, IE_MMODE); */ /* xmt buf on sysbus FIXME: needed ? */ 600 outb(MM_EN_XMT | MM_MUX, IE_MMODE); 601 outb(XM_ALL, EDLC_XMASK); /* Enable xmt IRQ's */ 602 dev->stats.collisions++; 603 return 1; 604 } 605 606 /* FIXME: handle other xmt error conditions */ 607 608 dev->stats.tx_packets++; 609 dev->stats.tx_bytes += lp->o_pkt_size; 610 netif_wake_queue(dev); 611 612 PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4x\n", 613 dev->name, lp->o_pkt_size)); 614 615 return 0; 616} 617 618/* The inverse routine to ni5010_open(). */ 619static int ni5010_close(struct net_device *dev) 620{ 621 int ioaddr = dev->base_addr; 622 623 PRINTK2((KERN_DEBUG "%s: entering ni5010_close\n", dev->name)); 624#ifdef JUMPERED_INTERRUPTS 625 free_irq(dev->irq, NULL); 626#endif 627 /* Put card in held-RESET state */ 628 outb(0, IE_MMODE); 629 outb(RS_RESET, EDLC_RESET); 630 631 netif_stop_queue(dev); 632 633 PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname)); 634 return 0; 635 636} 637 638/* Set or clear the multicast filter for this adaptor. 639 num_addrs == -1 Promiscuous mode, receive all packets 640 num_addrs == 0 Normal mode, clear multicast list 641 num_addrs > 0 Multicast mode, receive normal and MC packets, and do 642 best-effort filtering. 643*/ 644static void ni5010_set_multicast_list(struct net_device *dev) 645{ 646 short ioaddr = dev->base_addr; 647 648 PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name)); 649 650 if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI || 651 !netdev_mc_empty(dev)) { 652 outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */ 653 PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name)); 654 } else { 655 PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", dev->name)); 656 outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */ 657 } 658} 659 660static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad) 661{ 662 struct ni5010_local *lp = netdev_priv(dev); 663 int ioaddr = dev->base_addr; 664 unsigned long flags; 665 unsigned int buf_offs; 666 667 PRINTK2((KERN_DEBUG "%s: entering hardware_send_packet\n", dev->name)); 668 669 if (length > ETH_FRAME_LEN) { 670 PRINTK((KERN_WARNING "%s: packet too large, not possible\n", 671 dev->name)); 672 return; 673 } 674 675 if (NI5010_DEBUG) ni5010_show_registers(dev); 676 677 if (inb(IE_ISTAT) & IS_EN_XMT) { 678 PRINTK((KERN_WARNING "%s: sending packet while already transmitting, not possible\n", 679 dev->name)); 680 return; 681 } 682 683 if (NI5010_DEBUG > 3) dump_packet(buf, length); 684 685 buf_offs = NI5010_BUFSIZE - length - pad; 686 687 spin_lock_irqsave(&lp->lock, flags); 688 lp->o_pkt_size = length + pad; 689 690 outb(0, EDLC_RMASK); /* Mask all receive interrupts */ 691 outb(0, IE_MMODE); /* Put Xmit buffer on system bus */ 692 outb(0xff, EDLC_RCLR); /* Clear out pending rcv interrupts */ 693 694 outw(buf_offs, IE_GP); /* Point GP at start of packet */ 695 outsb(IE_XBUF, buf, length); /* Put data in buffer */ 696 while(pad--) 697 outb(0, IE_XBUF); 698 699 outw(buf_offs, IE_GP); /* Rewrite where packet starts */ 700 701 /* should work without that outb() (Crynwr used it) */ 702 /*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */ 703 outb(MM_EN_XMT | MM_MUX, IE_MMODE); /* Begin transmission */ 704 outb(XM_ALL, EDLC_XMASK); /* Cause interrupt after completion or fail */ 705 706 spin_unlock_irqrestore(&lp->lock, flags); 707 708 netif_wake_queue(dev); 709 710 if (NI5010_DEBUG) ni5010_show_registers(dev); 711} 712 713static void chipset_init(struct net_device *dev, int startp) 714{ 715 /* FIXME: Move some stuff here */ 716 PRINTK3((KERN_DEBUG "%s: doing NOTHING in chipset_init\n", dev->name)); 717} 718 719static void ni5010_show_registers(struct net_device *dev) 720{ 721 int ioaddr = dev->base_addr; 722 723 PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2x\n", dev->name, inb(EDLC_XSTAT))); 724 PRINTK3((KERN_DEBUG "%s: XMASK %#2.2x\n", dev->name, inb(EDLC_XMASK))); 725 PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2x\n", dev->name, inb(EDLC_RSTAT))); 726 PRINTK3((KERN_DEBUG "%s: RMASK %#2.2x\n", dev->name, inb(EDLC_RMASK))); 727 PRINTK3((KERN_DEBUG "%s: RMODE %#2.2x\n", dev->name, inb(EDLC_RMODE))); 728 PRINTK3((KERN_DEBUG "%s: XMODE %#2.2x\n", dev->name, inb(EDLC_XMODE))); 729 PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2x\n", dev->name, inb(IE_ISTAT))); 730} 731 732#ifdef MODULE 733static struct net_device *dev_ni5010; 734 735module_param(io, int, 0); 736module_param(irq, int, 0); 737MODULE_PARM_DESC(io, "ni5010 I/O base address"); 738MODULE_PARM_DESC(irq, "ni5010 IRQ number"); 739 740static int __init ni5010_init_module(void) 741{ 742 PRINTK2((KERN_DEBUG "%s: entering init_module\n", boardname)); 743 /* 744 if(io <= 0 || irq == 0){ 745 printk(KERN_WARNING "%s: Autoprobing not allowed for modules.\n", boardname); 746 printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'\n", boardname); 747 return -EINVAL; 748 } 749 */ 750 if (io <= 0){ 751 printk(KERN_WARNING "%s: Autoprobing for modules is hazardous, trying anyway..\n", boardname); 752 } 753 754 PRINTK2((KERN_DEBUG "%s: init_module irq=%#2x, io=%#3x\n", boardname, irq, io)); 755 dev_ni5010 = ni5010_probe(-1); 756 if (IS_ERR(dev_ni5010)) 757 return PTR_ERR(dev_ni5010); 758 return 0; 759} 760 761static void __exit ni5010_cleanup_module(void) 762{ 763 PRINTK2((KERN_DEBUG "%s: entering cleanup_module\n", boardname)); 764 unregister_netdev(dev_ni5010); 765 release_region(dev_ni5010->base_addr, NI5010_IO_EXTENT); 766 free_netdev(dev_ni5010); 767} 768module_init(ni5010_init_module); 769module_exit(ni5010_cleanup_module); 770#endif /* MODULE */ 771MODULE_LICENSE("GPL"); 772