Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* at1700.c: A network device driver for the Allied Telesis AT1700. |
| 2 | |
| 3 | Written 1993-98 by Donald Becker. |
| 4 | |
| 5 | Copyright 1993 United States Government as represented by the |
| 6 | Director, National Security Agency. |
| 7 | |
| 8 | This software may be used and distributed according to the terms |
| 9 | of the GNU General Public License, incorporated herein by reference. |
| 10 | |
| 11 | The author may be reached as becker@scyld.com, or C/O |
| 12 | Scyld Computing Corporation |
| 13 | 410 Severn Ave., Suite 210 |
| 14 | Annapolis MD 21403 |
| 15 | |
| 16 | This is a device driver for the Allied Telesis AT1700, and |
| 17 | Fujitsu FMV-181/182/181A/182A/183/184/183A/184A, which are |
| 18 | straight-forward Fujitsu MB86965 implementations. |
| 19 | |
| 20 | Modification for Fujitsu FMV-18X cards is done by Yutaka Tamiya |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 21 | (tamy@flab.fujitsu.co.jp). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
| 23 | Sources: |
| 24 | The Fujitsu MB86965 datasheet. |
| 25 | |
| 26 | After the initial version of this driver was written Gerry Sawkins of |
| 27 | ATI provided their EEPROM configuration code header file. |
| 28 | Thanks to NIIBE Yutaka <gniibe@mri.co.jp> for bug fixes. |
| 29 | |
| 30 | MCA bus (AT1720) support by Rene Schmit <rene@bss.lu> |
| 31 | |
| 32 | Bugs: |
| 33 | The MB86965 has a design flaw that makes all probes unreliable. Not |
| 34 | only is it difficult to detect, it also moves around in I/O space in |
| 35 | response to inb()s from other device probes! |
| 36 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/errno.h> |
| 39 | #include <linux/netdevice.h> |
| 40 | #include <linux/etherdevice.h> |
| 41 | #include <linux/mca-legacy.h> |
| 42 | #include <linux/module.h> |
| 43 | #include <linux/kernel.h> |
| 44 | #include <linux/types.h> |
| 45 | #include <linux/fcntl.h> |
| 46 | #include <linux/interrupt.h> |
| 47 | #include <linux/ioport.h> |
| 48 | #include <linux/in.h> |
| 49 | #include <linux/skbuff.h> |
| 50 | #include <linux/slab.h> |
| 51 | #include <linux/string.h> |
| 52 | #include <linux/init.h> |
| 53 | #include <linux/crc32.h> |
| 54 | #include <linux/bitops.h> |
| 55 | |
| 56 | #include <asm/system.h> |
| 57 | #include <asm/io.h> |
| 58 | #include <asm/dma.h> |
| 59 | |
| 60 | static char version[] __initdata = |
Andy Gospodarek | d5b2069 | 2006-09-11 17:39:18 -0400 | [diff] [blame] | 61 | "at1700.c:v1.16 9/11/06 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
| 63 | #define DRV_NAME "at1700" |
| 64 | |
| 65 | /* Tunable parameters. */ |
| 66 | |
| 67 | /* When to switch from the 64-entry multicast filter to Rx-all-multicast. */ |
| 68 | #define MC_FILTERBREAK 64 |
| 69 | |
| 70 | /* These unusual address orders are used to verify the CONFIG register. */ |
| 71 | |
| 72 | static int fmv18x_probe_list[] __initdata = { |
| 73 | 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x300, 0x340, 0 |
| 74 | }; |
| 75 | |
| 76 | /* |
| 77 | * ISA |
| 78 | */ |
| 79 | |
| 80 | static unsigned at1700_probe_list[] __initdata = { |
| 81 | 0x260, 0x280, 0x2a0, 0x240, 0x340, 0x320, 0x380, 0x300, 0 |
| 82 | }; |
| 83 | |
| 84 | /* |
| 85 | * MCA |
| 86 | */ |
| 87 | #ifdef CONFIG_MCA_LEGACY |
| 88 | static int at1700_ioaddr_pattern[] __initdata = { |
| 89 | 0x00, 0x04, 0x01, 0x05, 0x02, 0x06, 0x03, 0x07 |
| 90 | }; |
| 91 | |
| 92 | static int at1700_mca_probe_list[] __initdata = { |
| 93 | 0x400, 0x1400, 0x2400, 0x3400, 0x4400, 0x5400, 0x6400, 0x7400, 0 |
| 94 | }; |
| 95 | |
| 96 | static int at1700_irq_pattern[] __initdata = { |
| 97 | 0x00, 0x00, 0x00, 0x30, 0x70, 0xb0, 0x00, 0x00, |
| 98 | 0x00, 0xf0, 0x34, 0x74, 0xb4, 0x00, 0x00, 0xf4, 0x00 |
| 99 | }; |
| 100 | #endif |
| 101 | |
| 102 | /* use 0 for production, 1 for verification, >2 for debug */ |
| 103 | #ifndef NET_DEBUG |
| 104 | #define NET_DEBUG 1 |
| 105 | #endif |
| 106 | static unsigned int net_debug = NET_DEBUG; |
| 107 | |
| 108 | typedef unsigned char uchar; |
| 109 | |
| 110 | /* Information that need to be kept for each board. */ |
| 111 | struct net_local { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | spinlock_t lock; |
| 113 | unsigned char mc_filter[8]; |
| 114 | uint jumpered:1; /* Set iff the board has jumper config. */ |
| 115 | uint tx_started:1; /* Packets are on the Tx queue. */ |
| 116 | uint tx_queue_ready:1; /* Tx queue is ready to be sent. */ |
| 117 | uint rx_started:1; /* Packets are Rxing. */ |
| 118 | uchar tx_queue; /* Number of packet on the Tx queue. */ |
| 119 | char mca_slot; /* -1 means ISA */ |
| 120 | ushort tx_queue_len; /* Current length of the Tx queue. */ |
| 121 | }; |
| 122 | |
| 123 | |
| 124 | /* Offsets from the base address. */ |
| 125 | #define STATUS 0 |
| 126 | #define TX_STATUS 0 |
| 127 | #define RX_STATUS 1 |
| 128 | #define TX_INTR 2 /* Bit-mapped interrupt enable registers. */ |
| 129 | #define RX_INTR 3 |
| 130 | #define TX_MODE 4 |
| 131 | #define RX_MODE 5 |
| 132 | #define CONFIG_0 6 /* Misc. configuration settings. */ |
| 133 | #define CONFIG_1 7 |
| 134 | /* Run-time register bank 2 definitions. */ |
| 135 | #define DATAPORT 8 /* Word-wide DMA or programmed-I/O dataport. */ |
| 136 | #define TX_START 10 |
| 137 | #define COL16CNTL 11 /* Controll Reg for 16 collisions */ |
| 138 | #define MODE13 13 |
| 139 | #define RX_CTRL 14 |
| 140 | /* Configuration registers only on the '865A/B chips. */ |
| 141 | #define EEPROM_Ctrl 16 |
| 142 | #define EEPROM_Data 17 |
| 143 | #define CARDSTATUS 16 /* FMV-18x Card Status */ |
| 144 | #define CARDSTATUS1 17 /* FMV-18x Card Status */ |
| 145 | #define IOCONFIG 18 /* Either read the jumper, or move the I/O. */ |
| 146 | #define IOCONFIG1 19 |
| 147 | #define SAPROM 20 /* The station address PROM, if no EEPROM. */ |
| 148 | #define MODE24 24 |
| 149 | #define RESET 31 /* Write to reset some parts of the chip. */ |
| 150 | #define AT1700_IO_EXTENT 32 |
| 151 | #define PORT_OFFSET(o) (o) |
| 152 | |
| 153 | |
| 154 | #define TX_TIMEOUT 10 |
| 155 | |
| 156 | |
| 157 | /* Index to functions, as function prototypes. */ |
| 158 | |
| 159 | static int at1700_probe1(struct net_device *dev, int ioaddr); |
| 160 | static int read_eeprom(long ioaddr, int location); |
| 161 | static int net_open(struct net_device *dev); |
| 162 | static int net_send_packet(struct sk_buff *skb, struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 163 | static irqreturn_t net_interrupt(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | static void net_rx(struct net_device *dev); |
| 165 | static int net_close(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | static void set_rx_mode(struct net_device *dev); |
| 167 | static void net_tx_timeout (struct net_device *dev); |
| 168 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 169 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | #ifdef CONFIG_MCA_LEGACY |
| 171 | struct at1720_mca_adapters_struct { |
| 172 | char* name; |
| 173 | int id; |
| 174 | }; |
| 175 | /* rEnE : maybe there are others I don't know off... */ |
| 176 | |
| 177 | static struct at1720_mca_adapters_struct at1720_mca_adapters[] __initdata = { |
| 178 | { "Allied Telesys AT1720AT", 0x6410 }, |
| 179 | { "Allied Telesys AT1720BT", 0x6413 }, |
| 180 | { "Allied Telesys AT1720T", 0x6416 }, |
| 181 | { NULL, 0 }, |
| 182 | }; |
| 183 | #endif |
| 184 | |
| 185 | /* Check for a network adaptor of this type, and return '0' iff one exists. |
| 186 | If dev->base_addr == 0, probe all likely locations. |
| 187 | If dev->base_addr == 1, always return failure. |
| 188 | If dev->base_addr == 2, allocate space for the device and return success |
| 189 | (detachable devices only). |
| 190 | */ |
| 191 | |
| 192 | static int io = 0x260; |
| 193 | |
| 194 | static int irq; |
| 195 | |
| 196 | static void cleanup_card(struct net_device *dev) |
| 197 | { |
| 198 | #ifdef CONFIG_MCA_LEGACY |
| 199 | struct net_local *lp = netdev_priv(dev); |
| 200 | if (lp->mca_slot >= 0) |
| 201 | mca_mark_as_unused(lp->mca_slot); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 202 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | free_irq(dev->irq, NULL); |
| 204 | release_region(dev->base_addr, AT1700_IO_EXTENT); |
| 205 | } |
| 206 | |
| 207 | struct net_device * __init at1700_probe(int unit) |
| 208 | { |
| 209 | struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); |
| 210 | unsigned *port; |
| 211 | int err = 0; |
| 212 | |
| 213 | if (!dev) |
| 214 | return ERR_PTR(-ENODEV); |
| 215 | |
| 216 | if (unit >= 0) { |
| 217 | sprintf(dev->name, "eth%d", unit); |
| 218 | netdev_boot_setup_check(dev); |
| 219 | io = dev->base_addr; |
| 220 | irq = dev->irq; |
| 221 | } else { |
| 222 | dev->base_addr = io; |
| 223 | dev->irq = irq; |
| 224 | } |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | if (io > 0x1ff) { /* Check a single specified location. */ |
| 227 | err = at1700_probe1(dev, io); |
| 228 | } else if (io != 0) { /* Don't probe at all. */ |
| 229 | err = -ENXIO; |
| 230 | } else { |
| 231 | for (port = at1700_probe_list; *port; port++) { |
| 232 | if (at1700_probe1(dev, *port) == 0) |
| 233 | break; |
| 234 | dev->irq = irq; |
| 235 | } |
| 236 | if (!*port) |
| 237 | err = -ENODEV; |
| 238 | } |
| 239 | if (err) |
| 240 | goto out; |
| 241 | err = register_netdev(dev); |
| 242 | if (err) |
| 243 | goto out1; |
| 244 | return dev; |
| 245 | out1: |
| 246 | cleanup_card(dev); |
| 247 | out: |
| 248 | free_netdev(dev); |
| 249 | return ERR_PTR(err); |
| 250 | } |
| 251 | |
| 252 | /* The Fujitsu datasheet suggests that the NIC be probed for by checking its |
| 253 | "signature", the default bit pattern after a reset. This *doesn't* work -- |
| 254 | there is no way to reset the bus interface without a complete power-cycle! |
| 255 | |
| 256 | It turns out that ATI came to the same conclusion I did: the only thing |
| 257 | that can be done is checking a few bits and then diving right into an |
| 258 | EEPROM read. */ |
| 259 | |
| 260 | static int __init at1700_probe1(struct net_device *dev, int ioaddr) |
| 261 | { |
| 262 | char fmv_irqmap[4] = {3, 7, 10, 15}; |
| 263 | char fmv_irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15}; |
| 264 | char at1700_irqmap[8] = {3, 4, 5, 9, 10, 11, 14, 15}; |
| 265 | unsigned int i, irq, is_fmv18x = 0, is_at1700 = 0; |
| 266 | int slot, ret = -ENODEV; |
| 267 | struct net_local *lp = netdev_priv(dev); |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 268 | DECLARE_MAC_BUF(mac); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
| 270 | if (!request_region(ioaddr, AT1700_IO_EXTENT, DRV_NAME)) |
| 271 | return -EBUSY; |
| 272 | |
| 273 | /* Resetting the chip doesn't reset the ISA interface, so don't bother. |
| 274 | That means we have to be careful with the register values we probe |
| 275 | for. |
| 276 | */ |
| 277 | #ifdef notdef |
| 278 | printk("at1700 probe at %#x, eeprom is %4.4x %4.4x %4.4x ctrl %4.4x.\n", |
| 279 | ioaddr, read_eeprom(ioaddr, 4), read_eeprom(ioaddr, 5), |
| 280 | read_eeprom(ioaddr, 6), inw(ioaddr + EEPROM_Ctrl)); |
| 281 | #endif |
| 282 | |
| 283 | #ifdef CONFIG_MCA_LEGACY |
| 284 | /* rEnE (rene@bss.lu): got this from 3c509 driver source , adapted for AT1720 */ |
| 285 | |
| 286 | /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, heavily |
| 287 | modified by Chris Beauregard (cpbeaure@csclub.uwaterloo.ca) |
| 288 | to support standard MCA probing. */ |
| 289 | |
| 290 | /* redone for multi-card detection by ZP Gu (zpg@castle.net) */ |
| 291 | /* now works as a module */ |
| 292 | |
| 293 | if (MCA_bus) { |
| 294 | int j; |
| 295 | int l_i; |
| 296 | u_char pos3, pos4; |
| 297 | |
| 298 | for (j = 0; at1720_mca_adapters[j].name != NULL; j ++) { |
| 299 | slot = 0; |
| 300 | while (slot != MCA_NOTFOUND) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | slot = mca_find_unused_adapter( at1720_mca_adapters[j].id, slot ); |
| 303 | if (slot == MCA_NOTFOUND) break; |
| 304 | |
| 305 | /* if we get this far, an adapter has been detected and is |
| 306 | enabled */ |
| 307 | |
| 308 | pos3 = mca_read_stored_pos( slot, 3 ); |
| 309 | pos4 = mca_read_stored_pos( slot, 4 ); |
| 310 | |
| 311 | for (l_i = 0; l_i < 0x09; l_i++) |
| 312 | if (( pos3 & 0x07) == at1700_ioaddr_pattern[l_i]) |
| 313 | break; |
| 314 | ioaddr = at1700_mca_probe_list[l_i]; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | for (irq = 0; irq < 0x10; irq++) |
| 317 | if (((((pos4>>4) & 0x0f) | (pos3 & 0xf0)) & 0xff) == at1700_irq_pattern[irq]) |
| 318 | break; |
| 319 | |
| 320 | /* probing for a card at a particular IO/IRQ */ |
| 321 | if ((dev->irq && dev->irq != irq) || |
| 322 | (dev->base_addr && dev->base_addr != ioaddr)) { |
| 323 | slot++; /* probing next slot */ |
| 324 | continue; |
| 325 | } |
| 326 | |
| 327 | dev->irq = irq; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | /* claim the slot */ |
| 330 | mca_set_adapter_name( slot, at1720_mca_adapters[j].name ); |
| 331 | mca_mark_as_used(slot); |
| 332 | |
| 333 | goto found; |
| 334 | } |
| 335 | } |
| 336 | /* if we get here, we didn't find an MCA adapter - try ISA */ |
| 337 | } |
| 338 | #endif |
| 339 | slot = -1; |
| 340 | /* We must check for the EEPROM-config boards first, else accessing |
| 341 | IOCONFIG0 will move the board! */ |
| 342 | if (at1700_probe_list[inb(ioaddr + IOCONFIG1) & 0x07] == ioaddr |
| 343 | && read_eeprom(ioaddr, 4) == 0x0000 |
| 344 | && (read_eeprom(ioaddr, 5) & 0xff00) == 0xF400) |
| 345 | is_at1700 = 1; |
| 346 | else if (inb(ioaddr + SAPROM ) == 0x00 |
| 347 | && inb(ioaddr + SAPROM + 1) == 0x00 |
| 348 | && inb(ioaddr + SAPROM + 2) == 0x0e) |
| 349 | is_fmv18x = 1; |
| 350 | else { |
| 351 | goto err_out; |
| 352 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | #ifdef CONFIG_MCA_LEGACY |
| 355 | found: |
| 356 | #endif |
| 357 | |
| 358 | /* Reset the internal state machines. */ |
| 359 | outb(0, ioaddr + RESET); |
| 360 | |
| 361 | if (is_at1700) { |
| 362 | irq = at1700_irqmap[(read_eeprom(ioaddr, 12)&0x04) |
| 363 | | (read_eeprom(ioaddr, 0)>>14)]; |
| 364 | } else { |
| 365 | /* Check PnP mode for FMV-183/184/183A/184A. */ |
| 366 | /* This PnP routine is very poor. IO and IRQ should be known. */ |
| 367 | if (inb(ioaddr + CARDSTATUS1) & 0x20) { |
| 368 | irq = dev->irq; |
| 369 | for (i = 0; i < 8; i++) { |
| 370 | if (irq == fmv_irqmap_pnp[i]) |
| 371 | break; |
| 372 | } |
| 373 | if (i == 8) { |
| 374 | goto err_mca; |
| 375 | } |
| 376 | } else { |
| 377 | if (fmv18x_probe_list[inb(ioaddr + IOCONFIG) & 0x07] != ioaddr) |
| 378 | goto err_mca; |
| 379 | irq = fmv_irqmap[(inb(ioaddr + IOCONFIG)>>6) & 0x03]; |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | printk("%s: %s found at %#3x, IRQ %d, address ", dev->name, |
| 384 | is_at1700 ? "AT1700" : "FMV-18X", ioaddr, irq); |
| 385 | |
| 386 | dev->base_addr = ioaddr; |
| 387 | dev->irq = irq; |
| 388 | |
| 389 | if (is_at1700) { |
| 390 | for(i = 0; i < 3; i++) { |
| 391 | unsigned short eeprom_val = read_eeprom(ioaddr, 4+i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | ((unsigned short *)dev->dev_addr)[i] = ntohs(eeprom_val); |
| 393 | } |
| 394 | } else { |
| 395 | for(i = 0; i < 6; i++) { |
| 396 | unsigned char val = inb(ioaddr + SAPROM + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | dev->dev_addr[i] = val; |
| 398 | } |
| 399 | } |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 400 | printk("%s", print_mac(mac, dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | /* The EEPROM word 12 bit 0x0400 means use regular 100 ohm 10baseT signals, |
| 403 | rather than 150 ohm shielded twisted pair compensation. |
| 404 | 0x0000 == auto-sense the interface |
| 405 | 0x0800 == use TP interface |
| 406 | 0x1800 == use coax interface |
| 407 | */ |
| 408 | { |
| 409 | const char *porttype[] = {"auto-sense", "10baseT", "auto-sense", "10base2"}; |
| 410 | if (is_at1700) { |
| 411 | ushort setup_value = read_eeprom(ioaddr, 12); |
| 412 | dev->if_port = setup_value >> 8; |
| 413 | } else { |
| 414 | ushort setup_value = inb(ioaddr + CARDSTATUS); |
| 415 | switch (setup_value & 0x07) { |
| 416 | case 0x01: /* 10base5 */ |
| 417 | case 0x02: /* 10base2 */ |
| 418 | dev->if_port = 0x18; break; |
| 419 | case 0x04: /* 10baseT */ |
| 420 | dev->if_port = 0x08; break; |
| 421 | default: /* auto-sense */ |
| 422 | dev->if_port = 0x00; break; |
| 423 | } |
| 424 | } |
| 425 | printk(" %s interface.\n", porttype[(dev->if_port>>3) & 3]); |
| 426 | } |
| 427 | |
| 428 | /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit |
| 429 | bus access, two 4K Tx queues, and disabled Tx and Rx. */ |
| 430 | outb(0xda, ioaddr + CONFIG_0); |
| 431 | |
| 432 | /* Set the station address in bank zero. */ |
| 433 | outb(0x00, ioaddr + CONFIG_1); |
| 434 | for (i = 0; i < 6; i++) |
| 435 | outb(dev->dev_addr[i], ioaddr + PORT_OFFSET(8 + i)); |
| 436 | |
| 437 | /* Switch to bank 1 and set the multicast table to accept none. */ |
| 438 | outb(0x04, ioaddr + CONFIG_1); |
| 439 | for (i = 0; i < 8; i++) |
| 440 | outb(0x00, ioaddr + PORT_OFFSET(8 + i)); |
| 441 | |
| 442 | |
| 443 | /* Switch to bank 2 */ |
| 444 | /* Lock our I/O address, and set manual processing mode for 16 collisions. */ |
| 445 | outb(0x08, ioaddr + CONFIG_1); |
| 446 | outb(dev->if_port, ioaddr + MODE13); |
| 447 | outb(0x00, ioaddr + COL16CNTL); |
| 448 | |
| 449 | if (net_debug) |
| 450 | printk(version); |
| 451 | |
| 452 | memset(lp, 0, sizeof(struct net_local)); |
| 453 | |
| 454 | dev->open = net_open; |
| 455 | dev->stop = net_close; |
| 456 | dev->hard_start_xmit = net_send_packet; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | dev->set_multicast_list = &set_rx_mode; |
| 458 | dev->tx_timeout = net_tx_timeout; |
| 459 | dev->watchdog_timeo = TX_TIMEOUT; |
| 460 | |
| 461 | spin_lock_init(&lp->lock); |
| 462 | |
| 463 | lp->jumpered = is_fmv18x; |
| 464 | lp->mca_slot = slot; |
| 465 | /* Snarf the interrupt vector now. */ |
| 466 | ret = request_irq(irq, &net_interrupt, 0, DRV_NAME, dev); |
| 467 | if (ret) { |
Jeff Garzik | cba0516 | 2007-11-23 21:50:34 -0500 | [diff] [blame^] | 468 | printk(KERN_ERR "AT1700 at %#3x is unusable due to a " |
| 469 | "conflict on IRQ %d.\n", |
| 470 | ioaddr, irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | goto err_mca; |
| 472 | } |
| 473 | |
| 474 | return 0; |
| 475 | |
| 476 | err_mca: |
| 477 | #ifdef CONFIG_MCA_LEGACY |
| 478 | if (slot >= 0) |
| 479 | mca_mark_as_unused(slot); |
| 480 | #endif |
| 481 | err_out: |
| 482 | release_region(ioaddr, AT1700_IO_EXTENT); |
| 483 | return ret; |
| 484 | } |
| 485 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | /* EEPROM_Ctrl bits. */ |
| 488 | #define EE_SHIFT_CLK 0x40 /* EEPROM shift clock, in reg. 16. */ |
| 489 | #define EE_CS 0x20 /* EEPROM chip select, in reg. 16. */ |
| 490 | #define EE_DATA_WRITE 0x80 /* EEPROM chip data in, in reg. 17. */ |
| 491 | #define EE_DATA_READ 0x80 /* EEPROM chip data out, in reg. 17. */ |
| 492 | |
| 493 | /* The EEPROM commands include the alway-set leading bit. */ |
| 494 | #define EE_WRITE_CMD (5 << 6) |
| 495 | #define EE_READ_CMD (6 << 6) |
| 496 | #define EE_ERASE_CMD (7 << 6) |
| 497 | |
| 498 | static int __init read_eeprom(long ioaddr, int location) |
| 499 | { |
| 500 | int i; |
| 501 | unsigned short retval = 0; |
| 502 | long ee_addr = ioaddr + EEPROM_Ctrl; |
| 503 | long ee_daddr = ioaddr + EEPROM_Data; |
| 504 | int read_cmd = location | EE_READ_CMD; |
| 505 | |
| 506 | /* Shift the read command bits out. */ |
| 507 | for (i = 9; i >= 0; i--) { |
| 508 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
| 509 | outb(EE_CS, ee_addr); |
| 510 | outb(dataval, ee_daddr); |
| 511 | outb(EE_CS | EE_SHIFT_CLK, ee_addr); /* EEPROM clock tick. */ |
| 512 | } |
| 513 | outb(EE_DATA_WRITE, ee_daddr); |
| 514 | for (i = 16; i > 0; i--) { |
| 515 | outb(EE_CS, ee_addr); |
| 516 | outb(EE_CS | EE_SHIFT_CLK, ee_addr); |
| 517 | retval = (retval << 1) | ((inb(ee_daddr) & EE_DATA_READ) ? 1 : 0); |
| 518 | } |
| 519 | |
| 520 | /* Terminate the EEPROM access. */ |
| 521 | outb(EE_CS, ee_addr); |
| 522 | outb(EE_SHIFT_CLK, ee_addr); |
| 523 | outb(0, ee_addr); |
| 524 | return retval; |
| 525 | } |
| 526 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 527 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
| 529 | static int net_open(struct net_device *dev) |
| 530 | { |
| 531 | struct net_local *lp = netdev_priv(dev); |
| 532 | int ioaddr = dev->base_addr; |
| 533 | |
| 534 | /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit |
| 535 | bus access, and two 4K Tx queues. */ |
| 536 | outb(0x5a, ioaddr + CONFIG_0); |
| 537 | |
| 538 | /* Powerup, switch to register bank 2, and enable the Rx and Tx. */ |
| 539 | outb(0xe8, ioaddr + CONFIG_1); |
| 540 | |
| 541 | lp->tx_started = 0; |
| 542 | lp->tx_queue_ready = 1; |
| 543 | lp->rx_started = 0; |
| 544 | lp->tx_queue = 0; |
| 545 | lp->tx_queue_len = 0; |
| 546 | |
| 547 | /* Turn on hardware Tx and Rx interrupts. */ |
| 548 | outb(0x82, ioaddr + TX_INTR); |
| 549 | outb(0x81, ioaddr + RX_INTR); |
| 550 | |
| 551 | /* Enable the IRQ on boards of fmv18x it is feasible. */ |
| 552 | if (lp->jumpered) { |
| 553 | outb(0x80, ioaddr + IOCONFIG1); |
| 554 | } |
| 555 | |
| 556 | netif_start_queue(dev); |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | static void net_tx_timeout (struct net_device *dev) |
| 561 | { |
| 562 | struct net_local *lp = netdev_priv(dev); |
| 563 | int ioaddr = dev->base_addr; |
| 564 | |
| 565 | printk ("%s: transmit timed out with status %04x, %s?\n", dev->name, |
| 566 | inw (ioaddr + STATUS), inb (ioaddr + TX_STATUS) & 0x80 |
| 567 | ? "IRQ conflict" : "network cable problem"); |
| 568 | printk ("%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n", |
| 569 | dev->name, inw(ioaddr + TX_STATUS), inw(ioaddr + TX_INTR), inw(ioaddr + TX_MODE), |
| 570 | inw(ioaddr + CONFIG_0), inw(ioaddr + DATAPORT), inw(ioaddr + TX_START), |
| 571 | inw(ioaddr + MODE13 - 1), inw(ioaddr + RX_CTRL)); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 572 | dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | /* ToDo: We should try to restart the adaptor... */ |
| 574 | outw(0xffff, ioaddr + MODE24); |
| 575 | outw (0xffff, ioaddr + TX_STATUS); |
| 576 | outb (0x5a, ioaddr + CONFIG_0); |
| 577 | outb (0xe8, ioaddr + CONFIG_1); |
| 578 | outw (0x8182, ioaddr + TX_INTR); |
| 579 | outb (0x00, ioaddr + TX_START); |
| 580 | outb (0x03, ioaddr + COL16CNTL); |
| 581 | |
| 582 | dev->trans_start = jiffies; |
| 583 | |
| 584 | lp->tx_started = 0; |
| 585 | lp->tx_queue_ready = 1; |
| 586 | lp->rx_started = 0; |
| 587 | lp->tx_queue = 0; |
| 588 | lp->tx_queue_len = 0; |
| 589 | |
| 590 | netif_wake_queue(dev); |
| 591 | } |
| 592 | |
| 593 | |
| 594 | static int net_send_packet (struct sk_buff *skb, struct net_device *dev) |
| 595 | { |
| 596 | struct net_local *lp = netdev_priv(dev); |
| 597 | int ioaddr = dev->base_addr; |
| 598 | short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; |
| 599 | short len = skb->len; |
| 600 | unsigned char *buf = skb->data; |
| 601 | static u8 pad[ETH_ZLEN]; |
| 602 | |
| 603 | netif_stop_queue (dev); |
| 604 | |
| 605 | /* We may not start transmitting unless we finish transferring |
| 606 | a packet into the Tx queue. During executing the following |
| 607 | codes we possibly catch a Tx interrupt. Thus we flag off |
| 608 | tx_queue_ready, so that we prevent the interrupt routine |
| 609 | (net_interrupt) to start transmitting. */ |
| 610 | lp->tx_queue_ready = 0; |
| 611 | { |
| 612 | outw (length, ioaddr + DATAPORT); |
| 613 | /* Packet data */ |
| 614 | outsw (ioaddr + DATAPORT, buf, len >> 1); |
| 615 | /* Check for dribble byte */ |
| 616 | if (len & 1) { |
| 617 | outw(skb->data[skb->len-1], ioaddr + DATAPORT); |
| 618 | len++; |
| 619 | } |
| 620 | /* Check for packet padding */ |
| 621 | if (length != skb->len) |
| 622 | outsw(ioaddr + DATAPORT, pad, (length - len + 1) >> 1); |
| 623 | |
| 624 | lp->tx_queue++; |
| 625 | lp->tx_queue_len += length + 2; |
| 626 | } |
| 627 | lp->tx_queue_ready = 1; |
| 628 | |
| 629 | if (lp->tx_started == 0) { |
| 630 | /* If the Tx is idle, always trigger a transmit. */ |
| 631 | outb (0x80 | lp->tx_queue, ioaddr + TX_START); |
| 632 | lp->tx_queue = 0; |
| 633 | lp->tx_queue_len = 0; |
| 634 | dev->trans_start = jiffies; |
| 635 | lp->tx_started = 1; |
| 636 | netif_start_queue (dev); |
| 637 | } else if (lp->tx_queue_len < 4096 - 1502) |
| 638 | /* Yes, there is room for one more packet. */ |
| 639 | netif_start_queue (dev); |
| 640 | dev_kfree_skb (skb); |
| 641 | |
| 642 | return 0; |
| 643 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 644 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | /* The typical workload of the driver: |
| 646 | Handle the network interface interrupts. */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 647 | static irqreturn_t net_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | { |
| 649 | struct net_device *dev = dev_id; |
| 650 | struct net_local *lp; |
| 651 | int ioaddr, status; |
| 652 | int handled = 0; |
| 653 | |
| 654 | if (dev == NULL) { |
| 655 | printk ("at1700_interrupt(): irq %d for unknown device.\n", irq); |
| 656 | return IRQ_NONE; |
| 657 | } |
| 658 | |
| 659 | ioaddr = dev->base_addr; |
| 660 | lp = netdev_priv(dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 661 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | spin_lock (&lp->lock); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | status = inw(ioaddr + TX_STATUS); |
| 665 | outw(status, ioaddr + TX_STATUS); |
| 666 | |
| 667 | if (net_debug > 4) |
| 668 | printk("%s: Interrupt with status %04x.\n", dev->name, status); |
| 669 | if (lp->rx_started == 0 && |
| 670 | (status & 0xff00 || (inb(ioaddr + RX_MODE) & 0x40) == 0)) { |
| 671 | /* Got a packet(s). |
| 672 | We cannot execute net_rx more than once at the same time for |
| 673 | the same device. During executing net_rx, we possibly catch a |
| 674 | Tx interrupt. Thus we flag on rx_started, so that we prevent |
| 675 | the interrupt routine (net_interrupt) to dive into net_rx |
| 676 | again. */ |
| 677 | handled = 1; |
| 678 | lp->rx_started = 1; |
| 679 | outb(0x00, ioaddr + RX_INTR); /* Disable RX intr. */ |
| 680 | net_rx(dev); |
| 681 | outb(0x81, ioaddr + RX_INTR); /* Enable RX intr. */ |
| 682 | lp->rx_started = 0; |
| 683 | } |
| 684 | if (status & 0x00ff) { |
| 685 | handled = 1; |
| 686 | if (status & 0x02) { |
| 687 | /* More than 16 collisions occurred */ |
| 688 | if (net_debug > 4) |
| 689 | printk("%s: 16 Collision occur during Txing.\n", dev->name); |
| 690 | /* Cancel sending a packet. */ |
| 691 | outb(0x03, ioaddr + COL16CNTL); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 692 | dev->stats.collisions++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | } |
| 694 | if (status & 0x82) { |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 695 | dev->stats.tx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | /* The Tx queue has any packets and is not being |
| 697 | transferred a packet from the host, start |
| 698 | transmitting. */ |
| 699 | if (lp->tx_queue && lp->tx_queue_ready) { |
| 700 | outb(0x80 | lp->tx_queue, ioaddr + TX_START); |
| 701 | lp->tx_queue = 0; |
| 702 | lp->tx_queue_len = 0; |
| 703 | dev->trans_start = jiffies; |
| 704 | netif_wake_queue (dev); |
| 705 | } else { |
| 706 | lp->tx_started = 0; |
| 707 | netif_wake_queue (dev); |
| 708 | } |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | spin_unlock (&lp->lock); |
| 713 | return IRQ_RETVAL(handled); |
| 714 | } |
| 715 | |
| 716 | /* We have a good packet(s), get it/them out of the buffers. */ |
| 717 | static void |
| 718 | net_rx(struct net_device *dev) |
| 719 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | int ioaddr = dev->base_addr; |
| 721 | int boguscount = 5; |
| 722 | |
| 723 | while ((inb(ioaddr + RX_MODE) & 0x40) == 0) { |
| 724 | ushort status = inw(ioaddr + DATAPORT); |
| 725 | ushort pkt_len = inw(ioaddr + DATAPORT); |
| 726 | |
| 727 | if (net_debug > 4) |
| 728 | printk("%s: Rxing packet mode %02x status %04x.\n", |
| 729 | dev->name, inb(ioaddr + RX_MODE), status); |
| 730 | #ifndef final_version |
| 731 | if (status == 0) { |
| 732 | outb(0x05, ioaddr + RX_CTRL); |
| 733 | break; |
| 734 | } |
| 735 | #endif |
| 736 | |
| 737 | if ((status & 0xF0) != 0x20) { /* There was an error. */ |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 738 | dev->stats.rx_errors++; |
| 739 | if (status & 0x08) dev->stats.rx_length_errors++; |
| 740 | if (status & 0x04) dev->stats.rx_frame_errors++; |
| 741 | if (status & 0x02) dev->stats.rx_crc_errors++; |
| 742 | if (status & 0x01) dev->stats.rx_over_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | } else { |
| 744 | /* Malloc up new buffer. */ |
| 745 | struct sk_buff *skb; |
| 746 | |
| 747 | if (pkt_len > 1550) { |
| 748 | printk("%s: The AT1700 claimed a very large packet, size %d.\n", |
| 749 | dev->name, pkt_len); |
| 750 | /* Prime the FIFO and then flush the packet. */ |
| 751 | inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); |
| 752 | outb(0x05, ioaddr + RX_CTRL); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 753 | dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | break; |
| 755 | } |
| 756 | skb = dev_alloc_skb(pkt_len+3); |
| 757 | if (skb == NULL) { |
| 758 | printk("%s: Memory squeeze, dropping packet (len %d).\n", |
| 759 | dev->name, pkt_len); |
| 760 | /* Prime the FIFO and then flush the packet. */ |
| 761 | inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); |
| 762 | outb(0x05, ioaddr + RX_CTRL); |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 763 | dev->stats.rx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | break; |
| 765 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | skb_reserve(skb,2); |
| 767 | |
| 768 | insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1); |
| 769 | skb->protocol=eth_type_trans(skb, dev); |
| 770 | netif_rx(skb); |
| 771 | dev->last_rx = jiffies; |
Jeff Garzik | 09f75cd | 2007-10-03 17:41:50 -0700 | [diff] [blame] | 772 | dev->stats.rx_packets++; |
| 773 | dev->stats.rx_bytes += pkt_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | } |
| 775 | if (--boguscount <= 0) |
| 776 | break; |
| 777 | } |
| 778 | |
| 779 | /* If any worth-while packets have been received, dev_rint() |
| 780 | has done a mark_bh(NET_BH) for us and will work on them |
| 781 | when we get to the bottom-half routine. */ |
| 782 | { |
| 783 | int i; |
| 784 | for (i = 0; i < 20; i++) { |
| 785 | if ((inb(ioaddr + RX_MODE) & 0x40) == 0x40) |
| 786 | break; |
| 787 | inw(ioaddr + DATAPORT); /* dummy status read */ |
| 788 | outb(0x05, ioaddr + RX_CTRL); |
| 789 | } |
| 790 | |
| 791 | if (net_debug > 5) |
| 792 | printk("%s: Exint Rx packet with mode %02x after %d ticks.\n", |
| 793 | dev->name, inb(ioaddr + RX_MODE), i); |
| 794 | } |
| 795 | return; |
| 796 | } |
| 797 | |
| 798 | /* The inverse routine to net_open(). */ |
| 799 | static int net_close(struct net_device *dev) |
| 800 | { |
| 801 | struct net_local *lp = netdev_priv(dev); |
| 802 | int ioaddr = dev->base_addr; |
| 803 | |
| 804 | netif_stop_queue(dev); |
| 805 | |
| 806 | /* Set configuration register 0 to disable Tx and Rx. */ |
| 807 | outb(0xda, ioaddr + CONFIG_0); |
| 808 | |
| 809 | /* No statistic counters on the chip to update. */ |
| 810 | |
| 811 | /* Disable the IRQ on boards of fmv18x where it is feasible. */ |
| 812 | if (lp->jumpered) { |
| 813 | outb(0x00, ioaddr + IOCONFIG1); |
| 814 | free_irq(dev->irq, dev); |
| 815 | } |
| 816 | |
| 817 | /* Power-down the chip. Green, green, green! */ |
| 818 | outb(0x00, ioaddr + CONFIG_1); |
| 819 | return 0; |
| 820 | } |
| 821 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | /* |
| 823 | Set the multicast/promiscuous mode for this adaptor. |
| 824 | */ |
| 825 | |
| 826 | static void |
| 827 | set_rx_mode(struct net_device *dev) |
| 828 | { |
| 829 | int ioaddr = dev->base_addr; |
| 830 | struct net_local *lp = netdev_priv(dev); |
| 831 | unsigned char mc_filter[8]; /* Multicast hash filter */ |
| 832 | unsigned long flags; |
| 833 | int i; |
| 834 | |
| 835 | if (dev->flags & IFF_PROMISC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | memset(mc_filter, 0xff, sizeof(mc_filter)); |
| 837 | outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */ |
| 838 | } else if (dev->mc_count > MC_FILTERBREAK |
| 839 | || (dev->flags & IFF_ALLMULTI)) { |
| 840 | /* Too many to filter perfectly -- accept all multicasts. */ |
| 841 | memset(mc_filter, 0xff, sizeof(mc_filter)); |
| 842 | outb(2, ioaddr + RX_MODE); /* Use normal mode. */ |
| 843 | } else if (dev->mc_count == 0) { |
| 844 | memset(mc_filter, 0x00, sizeof(mc_filter)); |
| 845 | outb(1, ioaddr + RX_MODE); /* Ignore almost all multicasts. */ |
| 846 | } else { |
| 847 | struct dev_mc_list *mclist; |
| 848 | int i; |
| 849 | |
| 850 | memset(mc_filter, 0, sizeof(mc_filter)); |
| 851 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 852 | i++, mclist = mclist->next) { |
| 853 | unsigned int bit = |
| 854 | ether_crc_le(ETH_ALEN, mclist->dmi_addr) >> 26; |
| 855 | mc_filter[bit >> 3] |= (1 << bit); |
| 856 | } |
| 857 | outb(0x02, ioaddr + RX_MODE); /* Use normal mode. */ |
| 858 | } |
| 859 | |
| 860 | spin_lock_irqsave (&lp->lock, flags); |
| 861 | if (memcmp(mc_filter, lp->mc_filter, sizeof(mc_filter))) { |
| 862 | int saved_bank = inw(ioaddr + CONFIG_0); |
| 863 | /* Switch to bank 1 and set the multicast table. */ |
| 864 | outw((saved_bank & ~0x0C00) | 0x0480, ioaddr + CONFIG_0); |
| 865 | for (i = 0; i < 8; i++) |
| 866 | outb(mc_filter[i], ioaddr + PORT_OFFSET(8 + i)); |
| 867 | memcpy(lp->mc_filter, mc_filter, sizeof(mc_filter)); |
| 868 | outw(saved_bank, ioaddr + CONFIG_0); |
| 869 | } |
| 870 | spin_unlock_irqrestore (&lp->lock, flags); |
| 871 | return; |
| 872 | } |
| 873 | |
| 874 | #ifdef MODULE |
| 875 | static struct net_device *dev_at1700; |
| 876 | |
| 877 | module_param(io, int, 0); |
| 878 | module_param(irq, int, 0); |
| 879 | module_param(net_debug, int, 0); |
| 880 | MODULE_PARM_DESC(io, "AT1700/FMV18X I/O base address"); |
| 881 | MODULE_PARM_DESC(irq, "AT1700/FMV18X IRQ number"); |
| 882 | MODULE_PARM_DESC(net_debug, "AT1700/FMV18X debug level (0-6)"); |
| 883 | |
Andrew Morton | 5d93010 | 2006-08-14 22:59:59 -0700 | [diff] [blame] | 884 | int __init init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | { |
| 886 | if (io == 0) |
| 887 | printk("at1700: You should not use auto-probing with insmod!\n"); |
| 888 | dev_at1700 = at1700_probe(-1); |
| 889 | if (IS_ERR(dev_at1700)) |
| 890 | return PTR_ERR(dev_at1700); |
| 891 | return 0; |
| 892 | } |
| 893 | |
Al Viro | afc8eb4 | 2006-06-14 18:50:53 -0400 | [diff] [blame] | 894 | void __exit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | cleanup_module(void) |
| 896 | { |
| 897 | unregister_netdev(dev_at1700); |
| 898 | cleanup_card(dev_at1700); |
| 899 | free_netdev(dev_at1700); |
| 900 | } |
| 901 | #endif /* MODULE */ |
| 902 | MODULE_LICENSE("GPL"); |
| 903 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 904 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | /* |
| 906 | * Local variables: |
| 907 | * compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c at1700.c" |
| 908 | * alt-compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c at1700.c" |
| 909 | * tab-width: 4 |
| 910 | * c-basic-offset: 4 |
| 911 | * c-indent-level: 4 |
| 912 | * End: |
| 913 | */ |
| 914 | |