Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */ |
| 2 | /* |
| 3 | Written 1993-2000 by Donald Becker. |
| 4 | |
| 5 | Copyright 1994-2000 by Donald Becker. |
| 6 | Copyright 1993 United States Government as represented by the |
| 7 | Director, National Security Agency. This software may be used and |
| 8 | distributed according to the terms of the GNU General Public License, |
| 9 | incorporated herein by reference. |
| 10 | |
| 11 | This driver is for the 3Com EtherLinkIII series. |
| 12 | |
| 13 | The author may be reached as becker@scyld.com, or C/O |
| 14 | Scyld Computing Corporation |
| 15 | 410 Severn Ave., Suite 210 |
| 16 | Annapolis MD 21403 |
| 17 | |
| 18 | Known limitations: |
| 19 | Because of the way 3c509 ISA detection works it's difficult to predict |
| 20 | a priori which of several ISA-mode cards will be detected first. |
| 21 | |
| 22 | This driver does not use predictive interrupt mode, resulting in higher |
| 23 | packet latency but lower overhead. If interrupts are disabled for an |
| 24 | unusually long time it could also result in missed packets, but in |
| 25 | practice this rarely happens. |
| 26 | |
| 27 | |
| 28 | FIXES: |
| 29 | Alan Cox: Removed the 'Unexpected interrupt' bug. |
| 30 | Michael Meskes: Upgraded to Donald Becker's version 1.07. |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 31 | Alan Cox: Increased the eeprom delay. Regardless of |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | what the docs say some people definitely |
| 33 | get problems with lower (but in card spec) |
| 34 | delays |
| 35 | v1.10 4/21/97 Fixed module code so that multiple cards may be detected, |
| 36 | other cleanups. -djb |
| 37 | Andrea Arcangeli: Upgraded to Donald Becker's version 1.12. |
| 38 | Rick Payne: Fixed SMP race condition |
| 39 | v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb |
| 40 | v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb |
| 41 | v1.15 1/31/98 Faster recovery for Tx errors. -djb |
| 42 | v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb |
| 43 | v1.18 12Mar2001 Andrew Morton <andrewm@uow.edu.au> |
| 44 | - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz) |
| 45 | - Reviewed against 1.18 from scyld.com |
| 46 | v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com> |
| 47 | - ethtool support |
| 48 | v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com> |
| 49 | - Power Management support |
| 50 | v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com> |
| 51 | - Full duplex support |
| 52 | v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca> |
| 53 | - Additional ethtool features |
| 54 | v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com> |
| 55 | - Increase *read_eeprom udelay to workaround oops with 2 cards. |
| 56 | v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org> |
| 57 | - Introduce driver model for EISA cards. |
| 58 | */ |
| 59 | |
| 60 | #define DRV_NAME "3c509" |
| 61 | #define DRV_VERSION "1.19b" |
| 62 | #define DRV_RELDATE "08Nov2002" |
| 63 | |
| 64 | /* A few values that may be tweaked. */ |
| 65 | |
| 66 | /* Time in jiffies before concluding the transmitter is hung. */ |
| 67 | #define TX_TIMEOUT (400*HZ/1000) |
| 68 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
| 69 | static int max_interrupt_work = 10; |
| 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #include <linux/module.h> |
| 72 | #ifdef CONFIG_MCA |
| 73 | #include <linux/mca.h> |
| 74 | #endif |
| 75 | #include <linux/isapnp.h> |
| 76 | #include <linux/string.h> |
| 77 | #include <linux/interrupt.h> |
| 78 | #include <linux/errno.h> |
| 79 | #include <linux/in.h> |
| 80 | #include <linux/slab.h> |
| 81 | #include <linux/ioport.h> |
| 82 | #include <linux/init.h> |
| 83 | #include <linux/netdevice.h> |
| 84 | #include <linux/etherdevice.h> |
| 85 | #include <linux/pm.h> |
Jeff Garzik | bca73e4 | 2005-11-13 16:06:25 -0800 | [diff] [blame] | 86 | #include <linux/pm_legacy.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | #include <linux/skbuff.h> |
| 88 | #include <linux/delay.h> /* for udelay() */ |
| 89 | #include <linux/spinlock.h> |
| 90 | #include <linux/ethtool.h> |
| 91 | #include <linux/device.h> |
| 92 | #include <linux/eisa.h> |
| 93 | #include <linux/bitops.h> |
| 94 | |
| 95 | #include <asm/uaccess.h> |
| 96 | #include <asm/io.h> |
| 97 | #include <asm/irq.h> |
| 98 | |
| 99 | static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n"; |
| 100 | static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n"; |
| 101 | |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 102 | #if defined(CONFIG_PM) && (defined(CONFIG_MCA) || defined(CONFIG_EISA)) |
| 103 | #define EL3_SUSPEND |
| 104 | #endif |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | #ifdef EL3_DEBUG |
| 107 | static int el3_debug = EL3_DEBUG; |
| 108 | #else |
| 109 | static int el3_debug = 2; |
| 110 | #endif |
| 111 | |
| 112 | /* Used to do a global count of all the cards in the system. Must be |
| 113 | * a global variable so that the mca/eisa probe routines can increment |
| 114 | * it */ |
| 115 | static int el3_cards = 0; |
| 116 | |
| 117 | /* To minimize the size of the driver source I only define operating |
| 118 | constants if they are used several times. You'll need the manual |
| 119 | anyway if you want to understand driver details. */ |
| 120 | /* Offsets from base I/O address. */ |
| 121 | #define EL3_DATA 0x00 |
| 122 | #define EL3_CMD 0x0e |
| 123 | #define EL3_STATUS 0x0e |
| 124 | #define EEPROM_READ 0x80 |
| 125 | |
| 126 | #define EL3_IO_EXTENT 16 |
| 127 | |
| 128 | #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD) |
| 129 | |
| 130 | |
| 131 | /* The top five bits written to EL3_CMD are a command, the lower |
| 132 | 11 bits are the parameter, if applicable. */ |
| 133 | enum c509cmd { |
| 134 | TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, |
| 135 | RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, |
| 136 | TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, |
| 137 | FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, |
| 138 | SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, |
| 139 | SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, |
| 140 | StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11, |
| 141 | PowerDown = 28<<11, PowerAuto = 29<<11}; |
| 142 | |
| 143 | enum c509status { |
| 144 | IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, |
| 145 | TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, |
| 146 | IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, }; |
| 147 | |
| 148 | /* The SetRxFilter command accepts the following classes: */ |
| 149 | enum RxFilter { |
| 150 | RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; |
| 151 | |
| 152 | /* Register window 1 offsets, the window used in normal operation. */ |
| 153 | #define TX_FIFO 0x00 |
| 154 | #define RX_FIFO 0x00 |
| 155 | #define RX_STATUS 0x08 |
| 156 | #define TX_STATUS 0x0B |
| 157 | #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ |
| 158 | |
| 159 | #define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */ |
| 160 | #define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */ |
| 161 | #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */ |
| 162 | #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */ |
| 163 | #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */ |
| 164 | #define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 165 | #define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
| 167 | /* |
| 168 | * Must be a power of two (we use a binary and in the |
| 169 | * circular queue) |
| 170 | */ |
| 171 | #define SKB_QUEUE_SIZE 64 |
| 172 | |
| 173 | struct el3_private { |
| 174 | struct net_device_stats stats; |
| 175 | struct net_device *next_dev; |
| 176 | spinlock_t lock; |
| 177 | /* skb send-queue */ |
| 178 | int head, size; |
| 179 | struct sk_buff *queue[SKB_QUEUE_SIZE]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | enum { |
| 181 | EL3_MCA, |
| 182 | EL3_PNP, |
| 183 | EL3_EISA, |
| 184 | } type; /* type of device */ |
| 185 | struct device *dev; |
| 186 | }; |
| 187 | static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/ |
| 188 | static struct net_device *el3_root_dev; |
| 189 | |
| 190 | static ushort id_read_eeprom(int index); |
| 191 | static ushort read_eeprom(int ioaddr, int index); |
| 192 | static int el3_open(struct net_device *dev); |
| 193 | static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| 194 | static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs); |
| 195 | static void update_stats(struct net_device *dev); |
| 196 | static struct net_device_stats *el3_get_stats(struct net_device *dev); |
| 197 | static int el3_rx(struct net_device *dev); |
| 198 | static int el3_close(struct net_device *dev); |
| 199 | static void set_multicast_list(struct net_device *dev); |
| 200 | static void el3_tx_timeout (struct net_device *dev); |
| 201 | static void el3_down(struct net_device *dev); |
| 202 | static void el3_up(struct net_device *dev); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 203 | static const struct ethtool_ops ethtool_ops; |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 204 | #ifdef EL3_SUSPEND |
| 205 | static int el3_suspend(struct device *, pm_message_t); |
| 206 | static int el3_resume(struct device *); |
| 207 | #else |
| 208 | #define el3_suspend NULL |
| 209 | #define el3_resume NULL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | #endif |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 211 | |
| 212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | /* generic device remove for all device types */ |
| 214 | #if defined(CONFIG_EISA) || defined(CONFIG_MCA) |
| 215 | static int el3_device_remove (struct device *device); |
| 216 | #endif |
| 217 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 218 | static void el3_poll_controller(struct net_device *dev); |
| 219 | #endif |
| 220 | |
| 221 | #ifdef CONFIG_EISA |
| 222 | static struct eisa_device_id el3_eisa_ids[] = { |
| 223 | { "TCM5092" }, |
| 224 | { "TCM5093" }, |
Adrian Bunk | f04e3f0 | 2005-05-16 21:13:03 +0200 | [diff] [blame] | 225 | { "TCM5095" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | { "" } |
| 227 | }; |
Michael Tokarev | 07563c7 | 2006-09-27 01:50:56 -0700 | [diff] [blame] | 228 | MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
| 230 | static int el3_eisa_probe (struct device *device); |
| 231 | |
| 232 | static struct eisa_driver el3_eisa_driver = { |
| 233 | .id_table = el3_eisa_ids, |
| 234 | .driver = { |
| 235 | .name = "3c509", |
| 236 | .probe = el3_eisa_probe, |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 237 | .remove = __devexit_p (el3_device_remove), |
| 238 | .suspend = el3_suspend, |
| 239 | .resume = el3_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | } |
| 241 | }; |
| 242 | #endif |
| 243 | |
| 244 | #ifdef CONFIG_MCA |
| 245 | static int el3_mca_probe(struct device *dev); |
| 246 | |
| 247 | static short el3_mca_adapter_ids[] __initdata = { |
| 248 | 0x627c, |
| 249 | 0x627d, |
| 250 | 0x62db, |
| 251 | 0x62f6, |
| 252 | 0x62f7, |
| 253 | 0x0000 |
| 254 | }; |
| 255 | |
| 256 | static char *el3_mca_adapter_names[] __initdata = { |
| 257 | "3Com 3c529 EtherLink III (10base2)", |
| 258 | "3Com 3c529 EtherLink III (10baseT)", |
| 259 | "3Com 3c529 EtherLink III (test mode)", |
| 260 | "3Com 3c529 EtherLink III (TP or coax)", |
| 261 | "3Com 3c529 EtherLink III (TP)", |
| 262 | NULL |
| 263 | }; |
| 264 | |
| 265 | static struct mca_driver el3_mca_driver = { |
| 266 | .id_table = el3_mca_adapter_ids, |
| 267 | .driver = { |
| 268 | .name = "3c529", |
| 269 | .bus = &mca_bus_type, |
| 270 | .probe = el3_mca_probe, |
| 271 | .remove = __devexit_p(el3_device_remove), |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 272 | .suspend = el3_suspend, |
| 273 | .resume = el3_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | }, |
| 275 | }; |
| 276 | #endif /* CONFIG_MCA */ |
| 277 | |
| 278 | #if defined(__ISAPNP__) |
| 279 | static struct isapnp_device_id el3_isapnp_adapters[] __initdata = { |
| 280 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 281 | ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090), |
| 282 | (long) "3Com Etherlink III (TP)" }, |
| 283 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 284 | ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091), |
| 285 | (long) "3Com Etherlink III" }, |
| 286 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 287 | ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094), |
| 288 | (long) "3Com Etherlink III (combo)" }, |
| 289 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 290 | ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095), |
| 291 | (long) "3Com Etherlink III (TPO)" }, |
| 292 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 293 | ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098), |
| 294 | (long) "3Com Etherlink III (TPC)" }, |
| 295 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 296 | ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7), |
| 297 | (long) "3Com Etherlink III compatible" }, |
| 298 | { ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| 299 | ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8), |
| 300 | (long) "3Com Etherlink III compatible" }, |
| 301 | { } /* terminate list */ |
| 302 | }; |
| 303 | |
| 304 | static u16 el3_isapnp_phys_addr[8][3]; |
| 305 | static int nopnp; |
| 306 | #endif /* __ISAPNP__ */ |
| 307 | |
| 308 | /* With the driver model introduction for EISA devices, both init |
| 309 | * and cleanup have been split : |
| 310 | * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove |
| 311 | * - MCA/ISA still use el3_probe |
| 312 | * |
| 313 | * Both call el3_common_init/el3_common_remove. */ |
| 314 | |
| 315 | static int __init el3_common_init(struct net_device *dev) |
| 316 | { |
| 317 | struct el3_private *lp = netdev_priv(dev); |
| 318 | short i; |
| 319 | int err; |
| 320 | |
| 321 | spin_lock_init(&lp->lock); |
| 322 | |
| 323 | if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */ |
| 324 | dev->if_port = (dev->mem_start & 0x0f); |
| 325 | } else { /* xcvr codes 0/8 */ |
| 326 | /* use eeprom value, but save user's full-duplex selection */ |
| 327 | dev->if_port |= (dev->mem_start & 0x08); |
| 328 | } |
| 329 | |
| 330 | /* The EL3-specific entries in the device structure. */ |
| 331 | dev->open = &el3_open; |
| 332 | dev->hard_start_xmit = &el3_start_xmit; |
| 333 | dev->stop = &el3_close; |
| 334 | dev->get_stats = &el3_get_stats; |
| 335 | dev->set_multicast_list = &set_multicast_list; |
| 336 | dev->tx_timeout = el3_tx_timeout; |
| 337 | dev->watchdog_timeo = TX_TIMEOUT; |
| 338 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 339 | dev->poll_controller = el3_poll_controller; |
| 340 | #endif |
| 341 | SET_ETHTOOL_OPS(dev, ðtool_ops); |
| 342 | |
| 343 | err = register_netdev(dev); |
| 344 | if (err) { |
| 345 | printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n", |
| 346 | dev->base_addr, dev->irq); |
| 347 | release_region(dev->base_addr, EL3_IO_EXTENT); |
| 348 | return err; |
| 349 | } |
| 350 | |
| 351 | { |
| 352 | const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"}; |
| 353 | printk("%s: 3c5x9 found at %#3.3lx, %s port, address ", |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 354 | dev->name, dev->base_addr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | if_names[(dev->if_port & 0x03)]); |
| 356 | } |
| 357 | |
| 358 | /* Read in the station address. */ |
| 359 | for (i = 0; i < 6; i++) |
| 360 | printk(" %2.2x", dev->dev_addr[i]); |
| 361 | printk(", IRQ %d.\n", dev->irq); |
| 362 | |
| 363 | if (el3_debug > 0) |
| 364 | printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB); |
| 365 | return 0; |
| 366 | |
| 367 | } |
| 368 | |
| 369 | static void el3_common_remove (struct net_device *dev) |
| 370 | { |
| 371 | struct el3_private *lp = netdev_priv(dev); |
| 372 | |
| 373 | (void) lp; /* Keep gcc quiet... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | #if defined(__ISAPNP__) |
| 375 | if (lp->type == EL3_PNP) |
| 376 | pnp_device_detach(to_pnp_dev(lp->dev)); |
| 377 | #endif |
| 378 | |
| 379 | unregister_netdev (dev); |
| 380 | release_region(dev->base_addr, EL3_IO_EXTENT); |
| 381 | free_netdev (dev); |
| 382 | } |
| 383 | |
| 384 | static int __init el3_probe(int card_idx) |
| 385 | { |
| 386 | struct net_device *dev; |
| 387 | struct el3_private *lp; |
| 388 | short lrs_state = 0xff, i; |
| 389 | int ioaddr, irq, if_port; |
| 390 | u16 phys_addr[3]; |
| 391 | static int current_tag; |
| 392 | int err = -ENODEV; |
| 393 | #if defined(__ISAPNP__) |
| 394 | static int pnp_cards; |
| 395 | struct pnp_dev *idev = NULL; |
| 396 | |
| 397 | if (nopnp == 1) |
| 398 | goto no_pnp; |
| 399 | |
| 400 | for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) { |
| 401 | int j; |
| 402 | while ((idev = pnp_find_dev(NULL, |
| 403 | el3_isapnp_adapters[i].vendor, |
| 404 | el3_isapnp_adapters[i].function, |
| 405 | idev))) { |
| 406 | if (pnp_device_attach(idev) < 0) |
| 407 | continue; |
| 408 | if (pnp_activate_dev(idev) < 0) { |
| 409 | __again: |
| 410 | pnp_device_detach(idev); |
| 411 | continue; |
| 412 | } |
| 413 | if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) |
| 414 | goto __again; |
| 415 | ioaddr = pnp_port_start(idev, 0); |
| 416 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) { |
| 417 | pnp_device_detach(idev); |
| 418 | return -EBUSY; |
| 419 | } |
| 420 | irq = pnp_irq(idev, 0); |
| 421 | if (el3_debug > 3) |
| 422 | printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n", |
| 423 | (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq); |
| 424 | EL3WINDOW(0); |
| 425 | for (j = 0; j < 3; j++) |
| 426 | el3_isapnp_phys_addr[pnp_cards][j] = |
| 427 | phys_addr[j] = |
| 428 | htons(read_eeprom(ioaddr, j)); |
| 429 | if_port = read_eeprom(ioaddr, 8) >> 14; |
| 430 | dev = alloc_etherdev(sizeof (struct el3_private)); |
| 431 | if (!dev) { |
| 432 | release_region(ioaddr, EL3_IO_EXTENT); |
| 433 | pnp_device_detach(idev); |
| 434 | return -ENOMEM; |
| 435 | } |
| 436 | |
| 437 | SET_MODULE_OWNER(dev); |
| 438 | SET_NETDEV_DEV(dev, &idev->dev); |
| 439 | pnp_cards++; |
| 440 | |
| 441 | netdev_boot_setup_check(dev); |
| 442 | goto found; |
| 443 | } |
| 444 | } |
| 445 | no_pnp: |
| 446 | #endif /* __ISAPNP__ */ |
| 447 | |
| 448 | /* Select an open I/O location at 0x1*0 to do contention select. */ |
| 449 | for ( ; id_port < 0x200; id_port += 0x10) { |
| 450 | if (!request_region(id_port, 1, "3c509")) |
| 451 | continue; |
| 452 | outb(0x00, id_port); |
| 453 | outb(0xff, id_port); |
| 454 | if (inb(id_port) & 0x01){ |
| 455 | release_region(id_port, 1); |
| 456 | break; |
| 457 | } else |
| 458 | release_region(id_port, 1); |
| 459 | } |
| 460 | if (id_port >= 0x200) { |
| 461 | /* Rare -- do we really need a warning? */ |
| 462 | printk(" WARNING: No I/O port available for 3c509 activation.\n"); |
| 463 | return -ENODEV; |
| 464 | } |
| 465 | |
| 466 | /* Next check for all ISA bus boards by sending the ID sequence to the |
| 467 | ID_PORT. We find cards past the first by setting the 'current_tag' |
| 468 | on cards as they are found. Cards with their tag set will not |
| 469 | respond to subsequent ID sequences. */ |
| 470 | |
| 471 | outb(0x00, id_port); |
| 472 | outb(0x00, id_port); |
| 473 | for(i = 0; i < 255; i++) { |
| 474 | outb(lrs_state, id_port); |
| 475 | lrs_state <<= 1; |
| 476 | lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state; |
| 477 | } |
| 478 | |
| 479 | /* For the first probe, clear all board's tag registers. */ |
| 480 | if (current_tag == 0) |
| 481 | outb(0xd0, id_port); |
| 482 | else /* Otherwise kill off already-found boards. */ |
| 483 | outb(0xd8, id_port); |
| 484 | |
| 485 | if (id_read_eeprom(7) != 0x6d50) { |
| 486 | return -ENODEV; |
| 487 | } |
| 488 | |
| 489 | /* Read in EEPROM data, which does contention-select. |
| 490 | Only the lowest address board will stay "on-line". |
| 491 | 3Com got the byte order backwards. */ |
| 492 | for (i = 0; i < 3; i++) { |
| 493 | phys_addr[i] = htons(id_read_eeprom(i)); |
| 494 | } |
| 495 | |
| 496 | #if defined(__ISAPNP__) |
| 497 | if (nopnp == 0) { |
| 498 | /* The ISA PnP 3c509 cards respond to the ID sequence. |
| 499 | This check is needed in order not to register them twice. */ |
| 500 | for (i = 0; i < pnp_cards; i++) { |
| 501 | if (phys_addr[0] == el3_isapnp_phys_addr[i][0] && |
| 502 | phys_addr[1] == el3_isapnp_phys_addr[i][1] && |
| 503 | phys_addr[2] == el3_isapnp_phys_addr[i][2]) |
| 504 | { |
| 505 | if (el3_debug > 3) |
| 506 | printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n", |
| 507 | phys_addr[0] & 0xff, phys_addr[0] >> 8, |
| 508 | phys_addr[1] & 0xff, phys_addr[1] >> 8, |
| 509 | phys_addr[2] & 0xff, phys_addr[2] >> 8); |
| 510 | /* Set the adaptor tag so that the next card can be found. */ |
| 511 | outb(0xd0 + ++current_tag, id_port); |
| 512 | goto no_pnp; |
| 513 | } |
| 514 | } |
| 515 | } |
| 516 | #endif /* __ISAPNP__ */ |
| 517 | |
| 518 | { |
| 519 | unsigned int iobase = id_read_eeprom(8); |
| 520 | if_port = iobase >> 14; |
| 521 | ioaddr = 0x200 + ((iobase & 0x1f) << 4); |
| 522 | } |
| 523 | irq = id_read_eeprom(9) >> 12; |
| 524 | |
| 525 | dev = alloc_etherdev(sizeof (struct el3_private)); |
| 526 | if (!dev) |
| 527 | return -ENOMEM; |
| 528 | |
| 529 | SET_MODULE_OWNER(dev); |
| 530 | |
| 531 | netdev_boot_setup_check(dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 532 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | /* Set passed-in IRQ or I/O Addr. */ |
| 534 | if (dev->irq > 1 && dev->irq < 16) |
| 535 | irq = dev->irq; |
| 536 | |
| 537 | if (dev->base_addr) { |
| 538 | if (dev->mem_end == 0x3c509 /* Magic key */ |
| 539 | && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0) |
| 540 | ioaddr = dev->base_addr & 0x3f0; |
| 541 | else if (dev->base_addr != ioaddr) |
| 542 | goto out; |
| 543 | } |
| 544 | |
| 545 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) { |
| 546 | err = -EBUSY; |
| 547 | goto out; |
| 548 | } |
| 549 | |
| 550 | /* Set the adaptor tag so that the next card can be found. */ |
| 551 | outb(0xd0 + ++current_tag, id_port); |
| 552 | |
| 553 | /* Activate the adaptor at the EEPROM location. */ |
| 554 | outb((ioaddr >> 4) | 0xe0, id_port); |
| 555 | |
| 556 | EL3WINDOW(0); |
| 557 | if (inw(ioaddr) != 0x6d50) |
| 558 | goto out1; |
| 559 | |
| 560 | /* Free the interrupt so that some other card can use it. */ |
| 561 | outw(0x0f00, ioaddr + WN0_IRQ); |
| 562 | |
| 563 | #if defined(__ISAPNP__) |
| 564 | found: /* PNP jumps here... */ |
| 565 | #endif /* __ISAPNP__ */ |
| 566 | |
| 567 | memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); |
| 568 | dev->base_addr = ioaddr; |
| 569 | dev->irq = irq; |
| 570 | dev->if_port = if_port; |
| 571 | lp = netdev_priv(dev); |
| 572 | #if defined(__ISAPNP__) |
| 573 | lp->dev = &idev->dev; |
| 574 | #endif |
| 575 | err = el3_common_init(dev); |
| 576 | |
| 577 | if (err) |
| 578 | goto out1; |
| 579 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | el3_cards++; |
| 581 | lp->next_dev = el3_root_dev; |
| 582 | el3_root_dev = dev; |
| 583 | return 0; |
| 584 | |
| 585 | out1: |
| 586 | #if defined(__ISAPNP__) |
| 587 | if (idev) |
| 588 | pnp_device_detach(idev); |
| 589 | #endif |
| 590 | out: |
| 591 | free_netdev(dev); |
| 592 | return err; |
| 593 | } |
| 594 | |
| 595 | #ifdef CONFIG_MCA |
| 596 | static int __init el3_mca_probe(struct device *device) |
| 597 | { |
| 598 | /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, |
| 599 | * heavily modified by Chris Beauregard |
| 600 | * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA |
| 601 | * probing. |
| 602 | * |
| 603 | * redone for multi-card detection by ZP Gu (zpg@castle.net) |
| 604 | * now works as a module */ |
| 605 | |
| 606 | struct el3_private *lp; |
| 607 | short i; |
| 608 | int ioaddr, irq, if_port; |
| 609 | u16 phys_addr[3]; |
| 610 | struct net_device *dev = NULL; |
| 611 | u_char pos4, pos5; |
| 612 | struct mca_device *mdev = to_mca_device(device); |
| 613 | int slot = mdev->slot; |
| 614 | int err; |
| 615 | |
| 616 | pos4 = mca_device_read_stored_pos(mdev, 4); |
| 617 | pos5 = mca_device_read_stored_pos(mdev, 5); |
| 618 | |
| 619 | ioaddr = ((short)((pos4&0xfc)|0x02)) << 8; |
| 620 | irq = pos5 & 0x0f; |
| 621 | |
| 622 | |
| 623 | printk("3c529: found %s at slot %d\n", |
| 624 | el3_mca_adapter_names[mdev->index], slot + 1); |
| 625 | |
| 626 | /* claim the slot */ |
| 627 | strncpy(mdev->name, el3_mca_adapter_names[mdev->index], |
| 628 | sizeof(mdev->name)); |
| 629 | mca_device_set_claim(mdev, 1); |
| 630 | |
| 631 | if_port = pos4 & 0x03; |
| 632 | |
| 633 | irq = mca_device_transform_irq(mdev, irq); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 634 | ioaddr = mca_device_transform_ioport(mdev, ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | if (el3_debug > 2) { |
| 636 | printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port); |
| 637 | } |
| 638 | EL3WINDOW(0); |
| 639 | for (i = 0; i < 3; i++) { |
| 640 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); |
| 641 | } |
| 642 | |
| 643 | dev = alloc_etherdev(sizeof (struct el3_private)); |
| 644 | if (dev == NULL) { |
| 645 | release_region(ioaddr, EL3_IO_EXTENT); |
| 646 | return -ENOMEM; |
| 647 | } |
| 648 | |
| 649 | SET_MODULE_OWNER(dev); |
| 650 | netdev_boot_setup_check(dev); |
| 651 | |
| 652 | memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); |
| 653 | dev->base_addr = ioaddr; |
| 654 | dev->irq = irq; |
| 655 | dev->if_port = if_port; |
| 656 | lp = netdev_priv(dev); |
| 657 | lp->dev = device; |
| 658 | lp->type = EL3_MCA; |
| 659 | device->driver_data = dev; |
| 660 | err = el3_common_init(dev); |
| 661 | |
| 662 | if (err) { |
| 663 | device->driver_data = NULL; |
| 664 | free_netdev(dev); |
| 665 | return -ENOMEM; |
| 666 | } |
| 667 | |
| 668 | el3_cards++; |
| 669 | return 0; |
| 670 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 671 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | #endif /* CONFIG_MCA */ |
| 673 | |
| 674 | #ifdef CONFIG_EISA |
| 675 | static int __init el3_eisa_probe (struct device *device) |
| 676 | { |
| 677 | struct el3_private *lp; |
| 678 | short i; |
| 679 | int ioaddr, irq, if_port; |
| 680 | u16 phys_addr[3]; |
| 681 | struct net_device *dev = NULL; |
| 682 | struct eisa_device *edev; |
| 683 | int err; |
| 684 | |
| 685 | /* Yeepee, The driver framework is calling us ! */ |
| 686 | edev = to_eisa_device (device); |
| 687 | ioaddr = edev->base_addr; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 688 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) |
| 690 | return -EBUSY; |
| 691 | |
| 692 | /* Change the register set to the configuration window 0. */ |
| 693 | outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD); |
| 694 | |
| 695 | irq = inw(ioaddr + WN0_IRQ) >> 12; |
| 696 | if_port = inw(ioaddr + 6)>>14; |
| 697 | for (i = 0; i < 3; i++) |
| 698 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); |
| 699 | |
| 700 | /* Restore the "Product ID" to the EEPROM read register. */ |
| 701 | read_eeprom(ioaddr, 3); |
| 702 | |
| 703 | dev = alloc_etherdev(sizeof (struct el3_private)); |
| 704 | if (dev == NULL) { |
| 705 | release_region(ioaddr, EL3_IO_EXTENT); |
| 706 | return -ENOMEM; |
| 707 | } |
| 708 | |
| 709 | SET_MODULE_OWNER(dev); |
| 710 | |
| 711 | netdev_boot_setup_check(dev); |
| 712 | |
| 713 | memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); |
| 714 | dev->base_addr = ioaddr; |
| 715 | dev->irq = irq; |
| 716 | dev->if_port = if_port; |
| 717 | lp = netdev_priv(dev); |
| 718 | lp->dev = device; |
| 719 | lp->type = EL3_EISA; |
| 720 | eisa_set_drvdata (edev, dev); |
| 721 | err = el3_common_init(dev); |
| 722 | |
| 723 | if (err) { |
| 724 | eisa_set_drvdata (edev, NULL); |
| 725 | free_netdev(dev); |
| 726 | return err; |
| 727 | } |
| 728 | |
| 729 | el3_cards++; |
| 730 | return 0; |
| 731 | } |
| 732 | #endif |
| 733 | |
| 734 | #if defined(CONFIG_EISA) || defined(CONFIG_MCA) |
| 735 | /* This remove works for all device types. |
| 736 | * |
| 737 | * The net dev must be stored in the driver_data field */ |
| 738 | static int __devexit el3_device_remove (struct device *device) |
| 739 | { |
| 740 | struct net_device *dev; |
| 741 | |
| 742 | dev = device->driver_data; |
| 743 | |
| 744 | el3_common_remove (dev); |
| 745 | return 0; |
| 746 | } |
| 747 | #endif |
| 748 | |
| 749 | /* Read a word from the EEPROM using the regular EEPROM access register. |
| 750 | Assume that we are in register window zero. |
| 751 | */ |
| 752 | static ushort read_eeprom(int ioaddr, int index) |
| 753 | { |
| 754 | outw(EEPROM_READ + index, ioaddr + 10); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 755 | /* Pause for at least 162 us. for the read to take place. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | Some chips seem to require much longer */ |
| 757 | mdelay(2); |
| 758 | return inw(ioaddr + 12); |
| 759 | } |
| 760 | |
| 761 | /* Read a word from the EEPROM when in the ISA ID probe state. */ |
| 762 | static ushort __init id_read_eeprom(int index) |
| 763 | { |
| 764 | int bit, word = 0; |
| 765 | |
| 766 | /* Issue read command, and pause for at least 162 us. for it to complete. |
| 767 | Assume extra-fast 16Mhz bus. */ |
| 768 | outb(EEPROM_READ + index, id_port); |
| 769 | |
| 770 | /* Pause for at least 162 us. for the read to take place. */ |
| 771 | /* Some chips seem to require much longer */ |
| 772 | mdelay(4); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | for (bit = 15; bit >= 0; bit--) |
| 775 | word = (word << 1) + (inb(id_port) & 0x01); |
| 776 | |
| 777 | if (el3_debug > 3) |
| 778 | printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word); |
| 779 | |
| 780 | return word; |
| 781 | } |
| 782 | |
| 783 | |
| 784 | static int |
| 785 | el3_open(struct net_device *dev) |
| 786 | { |
| 787 | int ioaddr = dev->base_addr; |
| 788 | int i; |
| 789 | |
| 790 | outw(TxReset, ioaddr + EL3_CMD); |
| 791 | outw(RxReset, ioaddr + EL3_CMD); |
| 792 | outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); |
| 793 | |
| 794 | i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev); |
| 795 | if (i) |
| 796 | return i; |
| 797 | |
| 798 | EL3WINDOW(0); |
| 799 | if (el3_debug > 3) |
| 800 | printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name, |
| 801 | dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS)); |
| 802 | |
| 803 | el3_up(dev); |
| 804 | |
| 805 | if (el3_debug > 3) |
| 806 | printk("%s: Opened 3c509 IRQ %d status %4.4x.\n", |
| 807 | dev->name, dev->irq, inw(ioaddr + EL3_STATUS)); |
| 808 | |
| 809 | return 0; |
| 810 | } |
| 811 | |
| 812 | static void |
| 813 | el3_tx_timeout (struct net_device *dev) |
| 814 | { |
| 815 | struct el3_private *lp = netdev_priv(dev); |
| 816 | int ioaddr = dev->base_addr; |
| 817 | |
| 818 | /* Transmitter timeout, serious problems. */ |
| 819 | printk("%s: transmit timed out, Tx_status %2.2x status %4.4x " |
| 820 | "Tx FIFO room %d.\n", |
| 821 | dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS), |
| 822 | inw(ioaddr + TX_FREE)); |
| 823 | lp->stats.tx_errors++; |
| 824 | dev->trans_start = jiffies; |
| 825 | /* Issue TX_RESET and TX_START commands. */ |
| 826 | outw(TxReset, ioaddr + EL3_CMD); |
| 827 | outw(TxEnable, ioaddr + EL3_CMD); |
| 828 | netif_wake_queue(dev); |
| 829 | } |
| 830 | |
| 831 | |
| 832 | static int |
| 833 | el3_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 834 | { |
| 835 | struct el3_private *lp = netdev_priv(dev); |
| 836 | int ioaddr = dev->base_addr; |
| 837 | unsigned long flags; |
| 838 | |
| 839 | netif_stop_queue (dev); |
| 840 | |
| 841 | lp->stats.tx_bytes += skb->len; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 842 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | if (el3_debug > 4) { |
| 844 | printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n", |
| 845 | dev->name, skb->len, inw(ioaddr + EL3_STATUS)); |
| 846 | } |
| 847 | #if 0 |
| 848 | #ifndef final_version |
| 849 | { /* Error-checking code, delete someday. */ |
| 850 | ushort status = inw(ioaddr + EL3_STATUS); |
| 851 | if (status & 0x0001 /* IRQ line active, missed one. */ |
| 852 | && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */ |
| 853 | printk("%s: Missed interrupt, status then %04x now %04x" |
| 854 | " Tx %2.2x Rx %4.4x.\n", dev->name, status, |
| 855 | inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS), |
| 856 | inw(ioaddr + RX_STATUS)); |
| 857 | /* Fake interrupt trigger by masking, acknowledge interrupts. */ |
| 858 | outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); |
| 859 | outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
| 860 | ioaddr + EL3_CMD); |
| 861 | outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); |
| 862 | } |
| 863 | } |
| 864 | #endif |
| 865 | #endif |
| 866 | /* |
| 867 | * We lock the driver against other processors. Note |
| 868 | * we don't need to lock versus the IRQ as we suspended |
| 869 | * that. This means that we lose the ability to take |
| 870 | * an RX during a TX upload. That sucks a bit with SMP |
| 871 | * on an original 3c509 (2K buffer) |
| 872 | * |
| 873 | * Using disable_irq stops us crapping on other |
| 874 | * time sensitive devices. |
| 875 | */ |
| 876 | |
| 877 | spin_lock_irqsave(&lp->lock, flags); |
| 878 | |
| 879 | /* Put out the doubleword header... */ |
| 880 | outw(skb->len, ioaddr + TX_FIFO); |
| 881 | outw(0x00, ioaddr + TX_FIFO); |
| 882 | /* ... and the packet rounded to a doubleword. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | |
| 885 | dev->trans_start = jiffies; |
| 886 | if (inw(ioaddr + TX_FREE) > 1536) |
| 887 | netif_start_queue(dev); |
| 888 | else |
| 889 | /* Interrupt us when the FIFO has room for max-sized packet. */ |
| 890 | outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); |
| 891 | |
| 892 | spin_unlock_irqrestore(&lp->lock, flags); |
| 893 | |
| 894 | dev_kfree_skb (skb); |
| 895 | |
| 896 | /* Clear the Tx status stack. */ |
| 897 | { |
| 898 | short tx_status; |
| 899 | int i = 4; |
| 900 | |
| 901 | while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { |
| 902 | if (tx_status & 0x38) lp->stats.tx_aborted_errors++; |
| 903 | if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
| 904 | if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); |
| 905 | outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ |
| 906 | } |
| 907 | } |
| 908 | return 0; |
| 909 | } |
| 910 | |
| 911 | /* The EL3 interrupt handler. */ |
| 912 | static irqreturn_t |
| 913 | el3_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 914 | { |
| 915 | struct net_device *dev = (struct net_device *)dev_id; |
| 916 | struct el3_private *lp; |
| 917 | int ioaddr, status; |
| 918 | int i = max_interrupt_work; |
| 919 | |
| 920 | if (dev == NULL) { |
| 921 | printk ("el3_interrupt(): irq %d for unknown device.\n", irq); |
| 922 | return IRQ_NONE; |
| 923 | } |
| 924 | |
| 925 | lp = netdev_priv(dev); |
| 926 | spin_lock(&lp->lock); |
| 927 | |
| 928 | ioaddr = dev->base_addr; |
| 929 | |
| 930 | if (el3_debug > 4) { |
| 931 | status = inw(ioaddr + EL3_STATUS); |
| 932 | printk("%s: interrupt, status %4.4x.\n", dev->name, status); |
| 933 | } |
| 934 | |
| 935 | while ((status = inw(ioaddr + EL3_STATUS)) & |
| 936 | (IntLatch | RxComplete | StatsFull)) { |
| 937 | |
| 938 | if (status & RxComplete) |
| 939 | el3_rx(dev); |
| 940 | |
| 941 | if (status & TxAvailable) { |
| 942 | if (el3_debug > 5) |
| 943 | printk(" TX room bit was handled.\n"); |
| 944 | /* There's room in the FIFO for a full-sized packet. */ |
| 945 | outw(AckIntr | TxAvailable, ioaddr + EL3_CMD); |
| 946 | netif_wake_queue (dev); |
| 947 | } |
| 948 | if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) { |
| 949 | /* Handle all uncommon interrupts. */ |
| 950 | if (status & StatsFull) /* Empty statistics. */ |
| 951 | update_stats(dev); |
| 952 | if (status & RxEarly) { /* Rx early is unused. */ |
| 953 | el3_rx(dev); |
| 954 | outw(AckIntr | RxEarly, ioaddr + EL3_CMD); |
| 955 | } |
| 956 | if (status & TxComplete) { /* Really Tx error. */ |
| 957 | struct el3_private *lp = netdev_priv(dev); |
| 958 | short tx_status; |
| 959 | int i = 4; |
| 960 | |
| 961 | while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { |
| 962 | if (tx_status & 0x38) lp->stats.tx_aborted_errors++; |
| 963 | if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
| 964 | if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); |
| 965 | outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ |
| 966 | } |
| 967 | } |
| 968 | if (status & AdapterFailure) { |
| 969 | /* Adapter failure requires Rx reset and reinit. */ |
| 970 | outw(RxReset, ioaddr + EL3_CMD); |
| 971 | /* Set the Rx filter to the current state. */ |
| 972 | outw(SetRxFilter | RxStation | RxBroadcast |
| 973 | | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0) |
| 974 | | (dev->flags & IFF_PROMISC ? RxProm : 0), |
| 975 | ioaddr + EL3_CMD); |
| 976 | outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ |
| 977 | outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | if (--i < 0) { |
| 982 | printk("%s: Infinite loop in interrupt, status %4.4x.\n", |
| 983 | dev->name, status); |
| 984 | /* Clear all interrupts. */ |
| 985 | outw(AckIntr | 0xFF, ioaddr + EL3_CMD); |
| 986 | break; |
| 987 | } |
| 988 | /* Acknowledge the IRQ. */ |
| 989 | outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */ |
| 990 | } |
| 991 | |
| 992 | if (el3_debug > 4) { |
| 993 | printk("%s: exiting interrupt, status %4.4x.\n", dev->name, |
| 994 | inw(ioaddr + EL3_STATUS)); |
| 995 | } |
| 996 | spin_unlock(&lp->lock); |
| 997 | return IRQ_HANDLED; |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1002 | /* |
| 1003 | * Polling receive - used by netconsole and other diagnostic tools |
| 1004 | * to allow network i/o with interrupts disabled. |
| 1005 | */ |
| 1006 | static void el3_poll_controller(struct net_device *dev) |
| 1007 | { |
| 1008 | disable_irq(dev->irq); |
| 1009 | el3_interrupt(dev->irq, dev, NULL); |
| 1010 | enable_irq(dev->irq); |
| 1011 | } |
| 1012 | #endif |
| 1013 | |
| 1014 | static struct net_device_stats * |
| 1015 | el3_get_stats(struct net_device *dev) |
| 1016 | { |
| 1017 | struct el3_private *lp = netdev_priv(dev); |
| 1018 | unsigned long flags; |
| 1019 | |
| 1020 | /* |
| 1021 | * This is fast enough not to bother with disable IRQ |
| 1022 | * stuff. |
| 1023 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1024 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | spin_lock_irqsave(&lp->lock, flags); |
| 1026 | update_stats(dev); |
| 1027 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1028 | return &lp->stats; |
| 1029 | } |
| 1030 | |
| 1031 | /* Update statistics. We change to register window 6, so this should be run |
| 1032 | single-threaded if the device is active. This is expected to be a rare |
| 1033 | operation, and it's simpler for the rest of the driver to assume that |
| 1034 | window 1 is always valid rather than use a special window-state variable. |
| 1035 | */ |
| 1036 | static void update_stats(struct net_device *dev) |
| 1037 | { |
| 1038 | struct el3_private *lp = netdev_priv(dev); |
| 1039 | int ioaddr = dev->base_addr; |
| 1040 | |
| 1041 | if (el3_debug > 5) |
| 1042 | printk(" Updating the statistics.\n"); |
| 1043 | /* Turn off statistics updates while reading. */ |
| 1044 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 1045 | /* Switch to the stats window, and read everything. */ |
| 1046 | EL3WINDOW(6); |
| 1047 | lp->stats.tx_carrier_errors += inb(ioaddr + 0); |
| 1048 | lp->stats.tx_heartbeat_errors += inb(ioaddr + 1); |
| 1049 | /* Multiple collisions. */ inb(ioaddr + 2); |
| 1050 | lp->stats.collisions += inb(ioaddr + 3); |
| 1051 | lp->stats.tx_window_errors += inb(ioaddr + 4); |
| 1052 | lp->stats.rx_fifo_errors += inb(ioaddr + 5); |
| 1053 | lp->stats.tx_packets += inb(ioaddr + 6); |
| 1054 | /* Rx packets */ inb(ioaddr + 7); |
| 1055 | /* Tx deferrals */ inb(ioaddr + 8); |
| 1056 | inw(ioaddr + 10); /* Total Rx and Tx octets. */ |
| 1057 | inw(ioaddr + 12); |
| 1058 | |
| 1059 | /* Back to window 1, and turn statistics back on. */ |
| 1060 | EL3WINDOW(1); |
| 1061 | outw(StatsEnable, ioaddr + EL3_CMD); |
| 1062 | return; |
| 1063 | } |
| 1064 | |
| 1065 | static int |
| 1066 | el3_rx(struct net_device *dev) |
| 1067 | { |
| 1068 | struct el3_private *lp = netdev_priv(dev); |
| 1069 | int ioaddr = dev->base_addr; |
| 1070 | short rx_status; |
| 1071 | |
| 1072 | if (el3_debug > 5) |
| 1073 | printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n", |
| 1074 | inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS)); |
| 1075 | while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) { |
| 1076 | if (rx_status & 0x4000) { /* Error, update stats. */ |
| 1077 | short error = rx_status & 0x3800; |
| 1078 | |
| 1079 | outw(RxDiscard, ioaddr + EL3_CMD); |
| 1080 | lp->stats.rx_errors++; |
| 1081 | switch (error) { |
| 1082 | case 0x0000: lp->stats.rx_over_errors++; break; |
| 1083 | case 0x0800: lp->stats.rx_length_errors++; break; |
| 1084 | case 0x1000: lp->stats.rx_frame_errors++; break; |
| 1085 | case 0x1800: lp->stats.rx_length_errors++; break; |
| 1086 | case 0x2000: lp->stats.rx_frame_errors++; break; |
| 1087 | case 0x2800: lp->stats.rx_crc_errors++; break; |
| 1088 | } |
| 1089 | } else { |
| 1090 | short pkt_len = rx_status & 0x7ff; |
| 1091 | struct sk_buff *skb; |
| 1092 | |
| 1093 | skb = dev_alloc_skb(pkt_len+5); |
| 1094 | lp->stats.rx_bytes += pkt_len; |
| 1095 | if (el3_debug > 4) |
| 1096 | printk("Receiving packet size %d status %4.4x.\n", |
| 1097 | pkt_len, rx_status); |
| 1098 | if (skb != NULL) { |
| 1099 | skb->dev = dev; |
| 1100 | skb_reserve(skb, 2); /* Align IP on 16 byte */ |
| 1101 | |
| 1102 | /* 'skb->data' points to the start of sk_buff data area. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len), |
| 1104 | (pkt_len + 3) >> 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | |
| 1106 | outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ |
| 1107 | skb->protocol = eth_type_trans(skb,dev); |
| 1108 | netif_rx(skb); |
| 1109 | dev->last_rx = jiffies; |
| 1110 | lp->stats.rx_packets++; |
| 1111 | continue; |
| 1112 | } |
| 1113 | outw(RxDiscard, ioaddr + EL3_CMD); |
| 1114 | lp->stats.rx_dropped++; |
| 1115 | if (el3_debug) |
| 1116 | printk("%s: Couldn't allocate a sk_buff of size %d.\n", |
| 1117 | dev->name, pkt_len); |
| 1118 | } |
| 1119 | inw(ioaddr + EL3_STATUS); /* Delay. */ |
| 1120 | while (inw(ioaddr + EL3_STATUS) & 0x1000) |
| 1121 | printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n", |
| 1122 | inw(ioaddr + EL3_STATUS) ); |
| 1123 | } |
| 1124 | |
| 1125 | return 0; |
| 1126 | } |
| 1127 | |
| 1128 | /* |
| 1129 | * Set or clear the multicast filter for this adaptor. |
| 1130 | */ |
| 1131 | static void |
| 1132 | set_multicast_list(struct net_device *dev) |
| 1133 | { |
| 1134 | unsigned long flags; |
| 1135 | struct el3_private *lp = netdev_priv(dev); |
| 1136 | int ioaddr = dev->base_addr; |
| 1137 | |
| 1138 | if (el3_debug > 1) { |
| 1139 | static int old; |
| 1140 | if (old != dev->mc_count) { |
| 1141 | old = dev->mc_count; |
| 1142 | printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count); |
| 1143 | } |
| 1144 | } |
| 1145 | spin_lock_irqsave(&lp->lock, flags); |
| 1146 | if (dev->flags&IFF_PROMISC) { |
| 1147 | outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, |
| 1148 | ioaddr + EL3_CMD); |
| 1149 | } |
| 1150 | else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) { |
| 1151 | outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD); |
| 1152 | } |
| 1153 | else |
| 1154 | outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); |
| 1155 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1156 | } |
| 1157 | |
| 1158 | static int |
| 1159 | el3_close(struct net_device *dev) |
| 1160 | { |
| 1161 | int ioaddr = dev->base_addr; |
| 1162 | struct el3_private *lp = netdev_priv(dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | if (el3_debug > 2) |
| 1165 | printk("%s: Shutting down ethercard.\n", dev->name); |
| 1166 | |
| 1167 | el3_down(dev); |
| 1168 | |
| 1169 | free_irq(dev->irq, dev); |
| 1170 | /* Switching back to window 0 disables the IRQ. */ |
| 1171 | EL3WINDOW(0); |
| 1172 | if (lp->type != EL3_EISA) { |
| 1173 | /* But we explicitly zero the IRQ line select anyway. Don't do |
| 1174 | * it on EISA cards, it prevents the module from getting an |
| 1175 | * IRQ after unload+reload... */ |
| 1176 | outw(0x0f00, ioaddr + WN0_IRQ); |
| 1177 | } |
| 1178 | |
| 1179 | return 0; |
| 1180 | } |
| 1181 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1182 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | el3_link_ok(struct net_device *dev) |
| 1184 | { |
| 1185 | int ioaddr = dev->base_addr; |
| 1186 | u16 tmp; |
| 1187 | |
| 1188 | EL3WINDOW(4); |
| 1189 | tmp = inw(ioaddr + WN4_MEDIA); |
| 1190 | EL3WINDOW(1); |
| 1191 | return tmp & (1<<11); |
| 1192 | } |
| 1193 | |
| 1194 | static int |
| 1195 | el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1196 | { |
| 1197 | u16 tmp; |
| 1198 | int ioaddr = dev->base_addr; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | EL3WINDOW(0); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1201 | /* obtain current transceiver via WN4_MEDIA? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | tmp = inw(ioaddr + WN0_ADDR_CONF); |
| 1203 | ecmd->transceiver = XCVR_INTERNAL; |
| 1204 | switch (tmp >> 14) { |
| 1205 | case 0: |
| 1206 | ecmd->port = PORT_TP; |
| 1207 | break; |
| 1208 | case 1: |
| 1209 | ecmd->port = PORT_AUI; |
| 1210 | ecmd->transceiver = XCVR_EXTERNAL; |
| 1211 | break; |
| 1212 | case 3: |
| 1213 | ecmd->port = PORT_BNC; |
| 1214 | default: |
| 1215 | break; |
| 1216 | } |
| 1217 | |
| 1218 | ecmd->duplex = DUPLEX_HALF; |
| 1219 | ecmd->supported = 0; |
| 1220 | tmp = inw(ioaddr + WN0_CONF_CTRL); |
| 1221 | if (tmp & (1<<13)) |
| 1222 | ecmd->supported |= SUPPORTED_AUI; |
| 1223 | if (tmp & (1<<12)) |
| 1224 | ecmd->supported |= SUPPORTED_BNC; |
| 1225 | if (tmp & (1<<9)) { |
| 1226 | ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
| 1227 | SUPPORTED_10baseT_Full; /* hmm... */ |
| 1228 | EL3WINDOW(4); |
| 1229 | tmp = inw(ioaddr + WN4_NETDIAG); |
| 1230 | if (tmp & FD_ENABLE) |
| 1231 | ecmd->duplex = DUPLEX_FULL; |
| 1232 | } |
| 1233 | |
| 1234 | ecmd->speed = SPEED_10; |
| 1235 | EL3WINDOW(1); |
| 1236 | return 0; |
| 1237 | } |
| 1238 | |
| 1239 | static int |
| 1240 | el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1241 | { |
| 1242 | u16 tmp; |
| 1243 | int ioaddr = dev->base_addr; |
| 1244 | |
| 1245 | if (ecmd->speed != SPEED_10) |
| 1246 | return -EINVAL; |
| 1247 | if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL)) |
| 1248 | return -EINVAL; |
| 1249 | if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL)) |
| 1250 | return -EINVAL; |
| 1251 | |
| 1252 | /* change XCVR type */ |
| 1253 | EL3WINDOW(0); |
| 1254 | tmp = inw(ioaddr + WN0_ADDR_CONF); |
| 1255 | switch (ecmd->port) { |
| 1256 | case PORT_TP: |
| 1257 | tmp &= ~(3<<14); |
| 1258 | dev->if_port = 0; |
| 1259 | break; |
| 1260 | case PORT_AUI: |
| 1261 | tmp |= (1<<14); |
| 1262 | dev->if_port = 1; |
| 1263 | break; |
| 1264 | case PORT_BNC: |
| 1265 | tmp |= (3<<14); |
| 1266 | dev->if_port = 3; |
| 1267 | break; |
| 1268 | default: |
| 1269 | return -EINVAL; |
| 1270 | } |
| 1271 | |
| 1272 | outw(tmp, ioaddr + WN0_ADDR_CONF); |
| 1273 | if (dev->if_port == 3) { |
| 1274 | /* fire up the DC-DC convertor if BNC gets enabled */ |
| 1275 | tmp = inw(ioaddr + WN0_ADDR_CONF); |
| 1276 | if (tmp & (3 << 14)) { |
| 1277 | outw(StartCoax, ioaddr + EL3_CMD); |
| 1278 | udelay(800); |
| 1279 | } else |
| 1280 | return -EIO; |
| 1281 | } |
| 1282 | |
| 1283 | EL3WINDOW(4); |
| 1284 | tmp = inw(ioaddr + WN4_NETDIAG); |
| 1285 | if (ecmd->duplex == DUPLEX_FULL) |
| 1286 | tmp |= FD_ENABLE; |
| 1287 | else |
| 1288 | tmp &= ~FD_ENABLE; |
| 1289 | outw(tmp, ioaddr + WN4_NETDIAG); |
| 1290 | EL3WINDOW(1); |
| 1291 | |
| 1292 | return 0; |
| 1293 | } |
| 1294 | |
| 1295 | static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 1296 | { |
| 1297 | strcpy(info->driver, DRV_NAME); |
| 1298 | strcpy(info->version, DRV_VERSION); |
| 1299 | } |
| 1300 | |
| 1301 | static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1302 | { |
| 1303 | struct el3_private *lp = netdev_priv(dev); |
| 1304 | int ret; |
| 1305 | |
| 1306 | spin_lock_irq(&lp->lock); |
| 1307 | ret = el3_netdev_get_ecmd(dev, ecmd); |
| 1308 | spin_unlock_irq(&lp->lock); |
| 1309 | return ret; |
| 1310 | } |
| 1311 | |
| 1312 | static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1313 | { |
| 1314 | struct el3_private *lp = netdev_priv(dev); |
| 1315 | int ret; |
| 1316 | |
| 1317 | spin_lock_irq(&lp->lock); |
| 1318 | ret = el3_netdev_set_ecmd(dev, ecmd); |
| 1319 | spin_unlock_irq(&lp->lock); |
| 1320 | return ret; |
| 1321 | } |
| 1322 | |
| 1323 | static u32 el3_get_link(struct net_device *dev) |
| 1324 | { |
| 1325 | struct el3_private *lp = netdev_priv(dev); |
| 1326 | u32 ret; |
| 1327 | |
| 1328 | spin_lock_irq(&lp->lock); |
| 1329 | ret = el3_link_ok(dev); |
| 1330 | spin_unlock_irq(&lp->lock); |
| 1331 | return ret; |
| 1332 | } |
| 1333 | |
| 1334 | static u32 el3_get_msglevel(struct net_device *dev) |
| 1335 | { |
| 1336 | return el3_debug; |
| 1337 | } |
| 1338 | |
| 1339 | static void el3_set_msglevel(struct net_device *dev, u32 v) |
| 1340 | { |
| 1341 | el3_debug = v; |
| 1342 | } |
| 1343 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 1344 | static const struct ethtool_ops ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | .get_drvinfo = el3_get_drvinfo, |
| 1346 | .get_settings = el3_get_settings, |
| 1347 | .set_settings = el3_set_settings, |
| 1348 | .get_link = el3_get_link, |
| 1349 | .get_msglevel = el3_get_msglevel, |
| 1350 | .set_msglevel = el3_set_msglevel, |
| 1351 | }; |
| 1352 | |
| 1353 | static void |
| 1354 | el3_down(struct net_device *dev) |
| 1355 | { |
| 1356 | int ioaddr = dev->base_addr; |
| 1357 | |
| 1358 | netif_stop_queue(dev); |
| 1359 | |
| 1360 | /* Turn off statistics ASAP. We update lp->stats below. */ |
| 1361 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 1362 | |
| 1363 | /* Disable the receiver and transmitter. */ |
| 1364 | outw(RxDisable, ioaddr + EL3_CMD); |
| 1365 | outw(TxDisable, ioaddr + EL3_CMD); |
| 1366 | |
| 1367 | if (dev->if_port == 3) |
| 1368 | /* Turn off thinnet power. Green! */ |
| 1369 | outw(StopCoax, ioaddr + EL3_CMD); |
| 1370 | else if (dev->if_port == 0) { |
| 1371 | /* Disable link beat and jabber, if_port may change here next open(). */ |
| 1372 | EL3WINDOW(4); |
| 1373 | outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA); |
| 1374 | } |
| 1375 | |
| 1376 | outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); |
| 1377 | |
| 1378 | update_stats(dev); |
| 1379 | } |
| 1380 | |
| 1381 | static void |
| 1382 | el3_up(struct net_device *dev) |
| 1383 | { |
| 1384 | int i, sw_info, net_diag; |
| 1385 | int ioaddr = dev->base_addr; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | /* Activating the board required and does no harm otherwise */ |
| 1388 | outw(0x0001, ioaddr + 4); |
| 1389 | |
| 1390 | /* Set the IRQ line. */ |
| 1391 | outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ); |
| 1392 | |
| 1393 | /* Set the station address in window 2 each time opened. */ |
| 1394 | EL3WINDOW(2); |
| 1395 | |
| 1396 | for (i = 0; i < 6; i++) |
| 1397 | outb(dev->dev_addr[i], ioaddr + i); |
| 1398 | |
| 1399 | if ((dev->if_port & 0x03) == 3) /* BNC interface */ |
| 1400 | /* Start the thinnet transceiver. We should really wait 50ms...*/ |
| 1401 | outw(StartCoax, ioaddr + EL3_CMD); |
| 1402 | else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */ |
| 1403 | /* Combine secondary sw_info word (the adapter level) and primary |
| 1404 | sw_info word (duplex setting plus other useless bits) */ |
| 1405 | EL3WINDOW(0); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1406 | sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | (read_eeprom(ioaddr, 0x0d) & 0xBff0); |
| 1408 | |
| 1409 | EL3WINDOW(4); |
| 1410 | net_diag = inw(ioaddr + WN4_NETDIAG); |
| 1411 | net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */ |
| 1412 | printk("%s: ", dev->name); |
| 1413 | switch (dev->if_port & 0x0c) { |
| 1414 | case 12: |
| 1415 | /* force full-duplex mode if 3c5x9b */ |
| 1416 | if (sw_info & 0x000f) { |
| 1417 | printk("Forcing 3c5x9b full-duplex mode"); |
| 1418 | break; |
| 1419 | } |
| 1420 | case 8: |
| 1421 | /* set full-duplex mode based on eeprom config setting */ |
| 1422 | if ((sw_info & 0x000f) && (sw_info & 0x8000)) { |
| 1423 | printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)"); |
| 1424 | break; |
| 1425 | } |
| 1426 | default: |
| 1427 | /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */ |
| 1428 | printk("Setting 3c5x9/3c5x9B half-duplex mode"); |
| 1429 | net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */ |
| 1430 | } |
| 1431 | |
| 1432 | outw(net_diag, ioaddr + WN4_NETDIAG); |
| 1433 | printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info); |
| 1434 | if (el3_debug > 3) |
| 1435 | printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag); |
| 1436 | /* Enable link beat and jabber check. */ |
| 1437 | outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA); |
| 1438 | } |
| 1439 | |
| 1440 | /* Switch to the stats window, and clear all stats by reading. */ |
| 1441 | outw(StatsDisable, ioaddr + EL3_CMD); |
| 1442 | EL3WINDOW(6); |
| 1443 | for (i = 0; i < 9; i++) |
| 1444 | inb(ioaddr + i); |
| 1445 | inw(ioaddr + 10); |
| 1446 | inw(ioaddr + 12); |
| 1447 | |
| 1448 | /* Switch to register set 1 for normal use. */ |
| 1449 | EL3WINDOW(1); |
| 1450 | |
| 1451 | /* Accept b-case and phys addr only. */ |
| 1452 | outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); |
| 1453 | outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ |
| 1454 | |
| 1455 | outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ |
| 1456 | outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ |
| 1457 | /* Allow status bits to be seen. */ |
| 1458 | outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); |
| 1459 | /* Ack all pending events, and set active indicator mask. */ |
| 1460 | outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
| 1461 | ioaddr + EL3_CMD); |
| 1462 | outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull, |
| 1463 | ioaddr + EL3_CMD); |
| 1464 | |
| 1465 | netif_start_queue(dev); |
| 1466 | } |
| 1467 | |
| 1468 | /* Power Management support functions */ |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1469 | #ifdef EL3_SUSPEND |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | |
| 1471 | static int |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1472 | el3_suspend(struct device *pdev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | { |
| 1474 | unsigned long flags; |
| 1475 | struct net_device *dev; |
| 1476 | struct el3_private *lp; |
| 1477 | int ioaddr; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1478 | |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1479 | dev = pdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | lp = netdev_priv(dev); |
| 1481 | ioaddr = dev->base_addr; |
| 1482 | |
| 1483 | spin_lock_irqsave(&lp->lock, flags); |
| 1484 | |
| 1485 | if (netif_running(dev)) |
| 1486 | netif_device_detach(dev); |
| 1487 | |
| 1488 | el3_down(dev); |
| 1489 | outw(PowerDown, ioaddr + EL3_CMD); |
| 1490 | |
| 1491 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1492 | return 0; |
| 1493 | } |
| 1494 | |
| 1495 | static int |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1496 | el3_resume(struct device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | { |
| 1498 | unsigned long flags; |
| 1499 | struct net_device *dev; |
| 1500 | struct el3_private *lp; |
| 1501 | int ioaddr; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1502 | |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1503 | dev = pdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | lp = netdev_priv(dev); |
| 1505 | ioaddr = dev->base_addr; |
| 1506 | |
| 1507 | spin_lock_irqsave(&lp->lock, flags); |
| 1508 | |
| 1509 | outw(PowerUp, ioaddr + EL3_CMD); |
| 1510 | el3_up(dev); |
| 1511 | |
| 1512 | if (netif_running(dev)) |
| 1513 | netif_device_attach(dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1514 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1516 | return 0; |
| 1517 | } |
| 1518 | |
Pekka Enberg | 60a89ff | 2006-03-08 00:06:28 -0800 | [diff] [blame] | 1519 | #endif /* EL3_SUSPEND */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | |
| 1521 | /* Parameters that may be passed into the module. */ |
| 1522 | static int debug = -1; |
| 1523 | static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
| 1524 | static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; |
| 1525 | |
| 1526 | module_param(debug,int, 0); |
| 1527 | module_param_array(irq, int, NULL, 0); |
| 1528 | module_param_array(xcvr, int, NULL, 0); |
| 1529 | module_param(max_interrupt_work, int, 0); |
| 1530 | MODULE_PARM_DESC(debug, "debug level (0-6)"); |
| 1531 | MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); |
| 1532 | MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)"); |
| 1533 | MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); |
| 1534 | #if defined(__ISAPNP__) |
| 1535 | module_param(nopnp, int, 0); |
| 1536 | MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)"); |
| 1537 | MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters); |
| 1538 | #endif /* __ISAPNP__ */ |
| 1539 | MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver"); |
| 1540 | MODULE_LICENSE("GPL"); |
| 1541 | |
| 1542 | static int __init el3_init_module(void) |
| 1543 | { |
Andrew Morton | 0992a5d | 2006-03-08 00:06:27 -0800 | [diff] [blame] | 1544 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1545 | el3_cards = 0; |
| 1546 | |
| 1547 | if (debug >= 0) |
| 1548 | el3_debug = debug; |
| 1549 | |
| 1550 | el3_root_dev = NULL; |
| 1551 | while (el3_probe(el3_cards) == 0) { |
| 1552 | if (irq[el3_cards] > 1) |
| 1553 | el3_root_dev->irq = irq[el3_cards]; |
| 1554 | if (xcvr[el3_cards] >= 0) |
| 1555 | el3_root_dev->if_port = xcvr[el3_cards]; |
| 1556 | el3_cards++; |
| 1557 | } |
| 1558 | |
| 1559 | #ifdef CONFIG_EISA |
Andrew Morton | 0992a5d | 2006-03-08 00:06:27 -0800 | [diff] [blame] | 1560 | ret = eisa_driver_register(&el3_eisa_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | #endif |
| 1562 | #ifdef CONFIG_MCA |
Andrew Morton | 0992a5d | 2006-03-08 00:06:27 -0800 | [diff] [blame] | 1563 | { |
| 1564 | int err = mca_register_driver(&el3_mca_driver); |
| 1565 | if (ret == 0) |
| 1566 | ret = err; |
| 1567 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1568 | #endif |
Andrew Morton | 0992a5d | 2006-03-08 00:06:27 -0800 | [diff] [blame] | 1569 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1570 | } |
| 1571 | |
| 1572 | static void __exit el3_cleanup_module(void) |
| 1573 | { |
| 1574 | struct net_device *next_dev; |
| 1575 | |
| 1576 | while (el3_root_dev) { |
| 1577 | struct el3_private *lp = netdev_priv(el3_root_dev); |
| 1578 | |
| 1579 | next_dev = lp->next_dev; |
| 1580 | el3_common_remove (el3_root_dev); |
| 1581 | el3_root_dev = next_dev; |
| 1582 | } |
| 1583 | |
| 1584 | #ifdef CONFIG_EISA |
| 1585 | eisa_driver_unregister (&el3_eisa_driver); |
| 1586 | #endif |
| 1587 | #ifdef CONFIG_MCA |
| 1588 | mca_unregister_driver(&el3_mca_driver); |
| 1589 | #endif |
| 1590 | } |
| 1591 | |
| 1592 | module_init (el3_init_module); |
| 1593 | module_exit (el3_cleanup_module); |
| 1594 | |