Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /********************************************************************* |
| 2 | * |
| 3 | * Filename: netwave_cs.c |
| 4 | * Version: 0.4.1 |
| 5 | * Description: Netwave AirSurfer Wireless LAN PC Card driver |
| 6 | * Status: Experimental. |
| 7 | * Authors: John Markus Bjørndalen <johnm@cs.uit.no> |
| 8 | * Dag Brattli <dagb@cs.uit.no> |
| 9 | * David Hinds <dahinds@users.sourceforge.net> |
| 10 | * Created at: A long time ago! |
| 11 | * Modified at: Mon Nov 10 11:54:37 1997 |
| 12 | * Modified by: Dag Brattli <dagb@cs.uit.no> |
| 13 | * |
| 14 | * Copyright (c) 1997 University of Tromsø, Norway |
| 15 | * |
| 16 | * Revision History: |
| 17 | * |
| 18 | * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no> |
| 19 | * - Fixed some bugs in netwave_rx and cleaned it up a bit. |
| 20 | * (One of the bugs would have destroyed packets when receiving |
| 21 | * multiple packets per interrupt). |
| 22 | * - Cleaned up parts of newave_hw_xmit. |
| 23 | * - A few general cleanups. |
| 24 | * 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no> |
| 25 | * - Fixed netwave_rx receive function (got updated docs) |
| 26 | * Others: |
| 27 | * - Changed name from xircnw to netwave, take a look at |
| 28 | * http://www.netwave-wireless.com |
| 29 | * - Some reorganizing of the code |
| 30 | * - Removed possible race condition between interrupt handler and transmit |
| 31 | * function |
| 32 | * - Started to add wireless extensions, but still needs some coding |
| 33 | * - Added watchdog for better handling of transmission timeouts |
| 34 | * (hopefully this works better) |
| 35 | ********************************************************************/ |
| 36 | |
| 37 | /* To have statistics (just packets sent) define this */ |
| 38 | #undef NETWAVE_STATS |
| 39 | |
| 40 | #include <linux/config.h> |
| 41 | #include <linux/module.h> |
| 42 | #include <linux/kernel.h> |
| 43 | #include <linux/init.h> |
| 44 | #include <linux/types.h> |
| 45 | #include <linux/fcntl.h> |
| 46 | #include <linux/interrupt.h> |
| 47 | #include <linux/ptrace.h> |
| 48 | #include <linux/ioport.h> |
| 49 | #include <linux/in.h> |
| 50 | #include <linux/slab.h> |
| 51 | #include <linux/string.h> |
| 52 | #include <linux/timer.h> |
| 53 | #include <linux/errno.h> |
| 54 | #include <linux/netdevice.h> |
| 55 | #include <linux/etherdevice.h> |
| 56 | #include <linux/skbuff.h> |
| 57 | #include <linux/bitops.h> |
| 58 | #ifdef CONFIG_NET_RADIO |
| 59 | #include <linux/wireless.h> |
| 60 | #if WIRELESS_EXT > 12 |
| 61 | #include <net/iw_handler.h> |
| 62 | #endif /* WIRELESS_EXT > 12 */ |
| 63 | #endif |
| 64 | |
| 65 | #include <pcmcia/version.h> |
| 66 | #include <pcmcia/cs_types.h> |
| 67 | #include <pcmcia/cs.h> |
| 68 | #include <pcmcia/cistpl.h> |
| 69 | #include <pcmcia/cisreg.h> |
| 70 | #include <pcmcia/ds.h> |
| 71 | #include <pcmcia/mem_op.h> |
| 72 | |
| 73 | #include <asm/system.h> |
| 74 | #include <asm/io.h> |
| 75 | #include <asm/dma.h> |
| 76 | |
| 77 | #define NETWAVE_REGOFF 0x8000 |
| 78 | /* The Netwave IO registers, offsets to iobase */ |
| 79 | #define NETWAVE_REG_COR 0x0 |
| 80 | #define NETWAVE_REG_CCSR 0x2 |
| 81 | #define NETWAVE_REG_ASR 0x4 |
| 82 | #define NETWAVE_REG_IMR 0xa |
| 83 | #define NETWAVE_REG_PMR 0xc |
| 84 | #define NETWAVE_REG_IOLOW 0x6 |
| 85 | #define NETWAVE_REG_IOHI 0x7 |
| 86 | #define NETWAVE_REG_IOCONTROL 0x8 |
| 87 | #define NETWAVE_REG_DATA 0xf |
| 88 | /* The Netwave Extended IO registers, offsets to RamBase */ |
| 89 | #define NETWAVE_EREG_ASCC 0x114 |
| 90 | #define NETWAVE_EREG_RSER 0x120 |
| 91 | #define NETWAVE_EREG_RSERW 0x124 |
| 92 | #define NETWAVE_EREG_TSER 0x130 |
| 93 | #define NETWAVE_EREG_TSERW 0x134 |
| 94 | #define NETWAVE_EREG_CB 0x100 |
| 95 | #define NETWAVE_EREG_SPCQ 0x154 |
| 96 | #define NETWAVE_EREG_SPU 0x155 |
| 97 | #define NETWAVE_EREG_LIF 0x14e |
| 98 | #define NETWAVE_EREG_ISPLQ 0x156 |
| 99 | #define NETWAVE_EREG_HHC 0x158 |
| 100 | #define NETWAVE_EREG_NI 0x16e |
| 101 | #define NETWAVE_EREG_MHS 0x16b |
| 102 | #define NETWAVE_EREG_TDP 0x140 |
| 103 | #define NETWAVE_EREG_RDP 0x150 |
| 104 | #define NETWAVE_EREG_PA 0x160 |
| 105 | #define NETWAVE_EREG_EC 0x180 |
| 106 | #define NETWAVE_EREG_CRBP 0x17a |
| 107 | #define NETWAVE_EREG_ARW 0x166 |
| 108 | |
| 109 | /* |
| 110 | * Commands used in the extended command buffer |
| 111 | * NETWAVE_EREG_CB (0x100-0x10F) |
| 112 | */ |
| 113 | #define NETWAVE_CMD_NOP 0x00 |
| 114 | #define NETWAVE_CMD_SRC 0x01 |
| 115 | #define NETWAVE_CMD_STC 0x02 |
| 116 | #define NETWAVE_CMD_AMA 0x03 |
| 117 | #define NETWAVE_CMD_DMA 0x04 |
| 118 | #define NETWAVE_CMD_SAMA 0x05 |
| 119 | #define NETWAVE_CMD_ER 0x06 |
| 120 | #define NETWAVE_CMD_DR 0x07 |
| 121 | #define NETWAVE_CMD_TL 0x08 |
| 122 | #define NETWAVE_CMD_SRP 0x09 |
| 123 | #define NETWAVE_CMD_SSK 0x0a |
| 124 | #define NETWAVE_CMD_SMD 0x0b |
| 125 | #define NETWAVE_CMD_SAPD 0x0c |
| 126 | #define NETWAVE_CMD_SSS 0x11 |
| 127 | /* End of Command marker */ |
| 128 | #define NETWAVE_CMD_EOC 0x00 |
| 129 | |
| 130 | /* ASR register bits */ |
| 131 | #define NETWAVE_ASR_RXRDY 0x80 |
| 132 | #define NETWAVE_ASR_TXBA 0x01 |
| 133 | |
| 134 | #define TX_TIMEOUT ((32*HZ)/100) |
| 135 | |
| 136 | static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */ |
| 137 | static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */ |
| 138 | |
| 139 | static const unsigned int corConfIENA = 0x01; /* Interrupt enable */ |
| 140 | static const unsigned int corConfLVLREQ = 0x40; /* Keep high */ |
| 141 | |
| 142 | static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */ |
| 143 | static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/ |
| 144 | static const unsigned int rxConfPro = 0x10; /* Promiscuous */ |
| 145 | static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */ |
| 146 | static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */ |
| 147 | |
| 148 | static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */ |
| 149 | static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */ |
| 150 | static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */ |
| 151 | static const unsigned int txConfKey = 0x02; /* Scramble data packets */ |
| 152 | static const unsigned int txConfLoop = 0x01; /* Loopback mode */ |
| 153 | |
| 154 | /* |
| 155 | All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If |
| 156 | you do not define PCMCIA_DEBUG at all, all the debug code will be |
| 157 | left out. If you compile with PCMCIA_DEBUG=0, the debug code will |
| 158 | be present but disabled -- but it can then be enabled for specific |
| 159 | modules at load time with a 'pc_debug=#' option to insmod. |
| 160 | */ |
| 161 | |
| 162 | #ifdef PCMCIA_DEBUG |
| 163 | static int pc_debug = PCMCIA_DEBUG; |
| 164 | module_param(pc_debug, int, 0); |
| 165 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) |
| 166 | static char *version = |
| 167 | "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n"; |
| 168 | #else |
| 169 | #define DEBUG(n, args...) |
| 170 | #endif |
| 171 | |
| 172 | static dev_info_t dev_info = "netwave_cs"; |
| 173 | |
| 174 | /*====================================================================*/ |
| 175 | |
| 176 | /* Parameters that can be set with 'insmod' */ |
| 177 | |
| 178 | /* Choose the domain, default is 0x100 */ |
| 179 | static u_int domain = 0x100; |
| 180 | |
| 181 | /* Scramble key, range from 0x0 to 0xffff. |
| 182 | * 0x0 is no scrambling. |
| 183 | */ |
| 184 | static u_int scramble_key = 0x0; |
| 185 | |
| 186 | /* Shared memory speed, in ns. The documentation states that |
| 187 | * the card should not be read faster than every 400ns. |
| 188 | * This timing should be provided by the HBA. If it becomes a |
| 189 | * problem, try setting mem_speed to 400. |
| 190 | */ |
| 191 | static int mem_speed; |
| 192 | |
| 193 | module_param(domain, int, 0); |
| 194 | module_param(scramble_key, int, 0); |
| 195 | module_param(mem_speed, int, 0); |
| 196 | |
| 197 | /*====================================================================*/ |
| 198 | |
| 199 | /* PCMCIA (Card Services) related functions */ |
| 200 | static void netwave_release(dev_link_t *link); /* Card removal */ |
| 201 | static int netwave_event(event_t event, int priority, |
| 202 | event_callback_args_t *args); |
| 203 | static void netwave_pcmcia_config(dev_link_t *arg); /* Runs after card |
| 204 | insertion */ |
| 205 | static dev_link_t *netwave_attach(void); /* Create instance */ |
| 206 | static void netwave_detach(dev_link_t *); /* Destroy instance */ |
| 207 | |
| 208 | /* Hardware configuration */ |
| 209 | static void netwave_doreset(kio_addr_t iobase, u_char __iomem *ramBase); |
| 210 | static void netwave_reset(struct net_device *dev); |
| 211 | |
| 212 | /* Misc device stuff */ |
| 213 | static int netwave_open(struct net_device *dev); /* Open the device */ |
| 214 | static int netwave_close(struct net_device *dev); /* Close the device */ |
| 215 | |
| 216 | /* Packet transmission and Packet reception */ |
| 217 | static int netwave_start_xmit( struct sk_buff *skb, struct net_device *dev); |
| 218 | static int netwave_rx( struct net_device *dev); |
| 219 | |
| 220 | /* Interrupt routines */ |
| 221 | static irqreturn_t netwave_interrupt(int irq, void *dev_id, struct pt_regs *regs); |
| 222 | static void netwave_watchdog(struct net_device *); |
| 223 | |
| 224 | /* Statistics */ |
| 225 | static void update_stats(struct net_device *dev); |
| 226 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); |
| 227 | |
| 228 | /* Wireless extensions */ |
| 229 | #ifdef WIRELESS_EXT |
| 230 | static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev); |
| 231 | #endif |
| 232 | static int netwave_ioctl(struct net_device *, struct ifreq *, int); |
| 233 | |
| 234 | static void set_multicast_list(struct net_device *dev); |
| 235 | |
| 236 | /* |
| 237 | A linked list of "instances" of the skeleton device. Each actual |
| 238 | PCMCIA card corresponds to one device instance, and is described |
| 239 | by one dev_link_t structure (defined in ds.h). |
| 240 | |
| 241 | You may not want to use a linked list for this -- for example, the |
| 242 | memory card driver uses an array of dev_link_t pointers, where minor |
| 243 | device numbers are used to derive the corresponding array index. |
| 244 | */ |
| 245 | static dev_link_t *dev_list; |
| 246 | |
| 247 | /* |
| 248 | A dev_link_t structure has fields for most things that are needed |
| 249 | to keep track of a socket, but there will usually be some device |
| 250 | specific information that also needs to be kept track of. The |
| 251 | 'priv' pointer in a dev_link_t structure can be used to point to |
| 252 | a device-specific private data structure, like this. |
| 253 | |
| 254 | A driver needs to provide a dev_node_t structure for each device |
| 255 | on a card. In some cases, there is only one device per card (for |
| 256 | example, ethernet cards, modems). In other cases, there may be |
| 257 | many actual or logical devices (SCSI adapters, memory cards with |
| 258 | multiple partitions). The dev_node_t structures need to be kept |
| 259 | in a linked list starting at the 'dev' field of a dev_link_t |
| 260 | structure. We allocate them in the card's private data structure, |
| 261 | because they generally can't be allocated dynamically. |
| 262 | */ |
| 263 | |
| 264 | #if WIRELESS_EXT <= 12 |
| 265 | /* Wireless extensions backward compatibility */ |
| 266 | |
| 267 | /* Part of iw_handler prototype we need */ |
| 268 | struct iw_request_info |
| 269 | { |
| 270 | __u16 cmd; /* Wireless Extension command */ |
| 271 | __u16 flags; /* More to come ;-) */ |
| 272 | }; |
| 273 | |
| 274 | /* Wireless Extension Backward compatibility - Jean II |
| 275 | * If the new wireless device private ioctl range is not defined, |
| 276 | * default to standard device private ioctl range */ |
| 277 | #ifndef SIOCIWFIRSTPRIV |
| 278 | #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE |
| 279 | #endif /* SIOCIWFIRSTPRIV */ |
| 280 | |
| 281 | #else /* WIRELESS_EXT <= 12 */ |
| 282 | static const struct iw_handler_def netwave_handler_def; |
| 283 | #endif /* WIRELESS_EXT <= 12 */ |
| 284 | |
| 285 | #define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */ |
| 286 | |
| 287 | #define MAX_ESA 10 |
| 288 | |
| 289 | typedef struct net_addr { |
| 290 | u_char addr48[6]; |
| 291 | } net_addr; |
| 292 | |
| 293 | struct site_survey { |
| 294 | u_short length; |
| 295 | u_char struct_revision; |
| 296 | u_char roaming_state; |
| 297 | |
| 298 | u_char sp_existsFlag; |
| 299 | u_char sp_link_quality; |
| 300 | u_char sp_max_link_quality; |
| 301 | u_char linkQualityGoodFairBoundary; |
| 302 | u_char linkQualityFairPoorBoundary; |
| 303 | u_char sp_utilization; |
| 304 | u_char sp_goodness; |
| 305 | u_char sp_hotheadcount; |
| 306 | u_char roaming_condition; |
| 307 | |
| 308 | net_addr sp; |
| 309 | u_char numAPs; |
| 310 | net_addr nearByAccessPoints[MAX_ESA]; |
| 311 | }; |
| 312 | |
| 313 | typedef struct netwave_private { |
| 314 | dev_link_t link; |
| 315 | spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ |
| 316 | dev_node_t node; |
| 317 | u_char __iomem *ramBase; |
| 318 | int timeoutCounter; |
| 319 | int lastExec; |
| 320 | struct timer_list watchdog; /* To avoid blocking state */ |
| 321 | struct site_survey nss; |
| 322 | struct net_device_stats stats; |
| 323 | #ifdef WIRELESS_EXT |
| 324 | struct iw_statistics iw_stats; /* Wireless stats */ |
| 325 | #endif |
| 326 | } netwave_private; |
| 327 | |
| 328 | #ifdef NETWAVE_STATS |
| 329 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); |
| 330 | #endif |
| 331 | |
| 332 | /* |
| 333 | * The Netwave card is little-endian, so won't work for big endian |
| 334 | * systems. |
| 335 | */ |
| 336 | static inline unsigned short get_uint16(u_char __iomem *staddr) |
| 337 | { |
| 338 | return readw(staddr); /* Return only 16 bits */ |
| 339 | } |
| 340 | |
| 341 | static inline short get_int16(u_char __iomem * staddr) |
| 342 | { |
| 343 | return readw(staddr); |
| 344 | } |
| 345 | |
| 346 | /* |
| 347 | * Wait until the WOC (Write Operation Complete) bit in the |
| 348 | * ASR (Adapter Status Register) is asserted. |
| 349 | * This should have aborted if it takes too long time. |
| 350 | */ |
| 351 | static inline void wait_WOC(unsigned int iobase) |
| 352 | { |
| 353 | /* Spin lock */ |
| 354 | while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ; |
| 355 | } |
| 356 | |
| 357 | #ifdef WIRELESS_EXT |
| 358 | static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase, |
| 359 | kio_addr_t iobase) { |
| 360 | u_short resultBuffer; |
| 361 | |
| 362 | /* if time since last snapshot is > 1 sec. (100 jiffies?) then take |
| 363 | * new snapshot, else return cached data. This is the recommended rate. |
| 364 | */ |
| 365 | if ( jiffies - priv->lastExec > 100) { |
| 366 | /* Take site survey snapshot */ |
| 367 | /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies - |
| 368 | priv->lastExec); */ |
| 369 | wait_WOC(iobase); |
| 370 | writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0); |
| 371 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 372 | wait_WOC(iobase); |
| 373 | |
| 374 | /* Get result and copy to cach */ |
| 375 | resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP); |
| 376 | copy_from_pc( &priv->nss, ramBase+resultBuffer, |
| 377 | sizeof(struct site_survey)); |
| 378 | } |
| 379 | } |
| 380 | #endif |
| 381 | |
| 382 | #ifdef WIRELESS_EXT |
| 383 | /* |
| 384 | * Function netwave_get_wireless_stats (dev) |
| 385 | * |
| 386 | * Wireless extensions statistics |
| 387 | * |
| 388 | */ |
| 389 | static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev) |
| 390 | { |
| 391 | unsigned long flags; |
| 392 | kio_addr_t iobase = dev->base_addr; |
| 393 | netwave_private *priv = netdev_priv(dev); |
| 394 | u_char __iomem *ramBase = priv->ramBase; |
| 395 | struct iw_statistics* wstats; |
| 396 | |
| 397 | wstats = &priv->iw_stats; |
| 398 | |
| 399 | spin_lock_irqsave(&priv->spinlock, flags); |
| 400 | |
| 401 | netwave_snapshot( priv, ramBase, iobase); |
| 402 | |
| 403 | wstats->status = priv->nss.roaming_state; |
| 404 | wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ); |
| 405 | wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ); |
| 406 | wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f; |
| 407 | wstats->discard.nwid = 0L; |
| 408 | wstats->discard.code = 0L; |
| 409 | wstats->discard.misc = 0L; |
| 410 | |
| 411 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 412 | |
| 413 | return &priv->iw_stats; |
| 414 | } |
| 415 | #endif |
| 416 | |
| 417 | /* |
| 418 | * Function netwave_attach (void) |
| 419 | * |
| 420 | * Creates an "instance" of the driver, allocating local data |
| 421 | * structures for one device. The device is registered with Card |
| 422 | * Services. |
| 423 | * |
| 424 | * The dev_link structure is initialized, but we don't actually |
| 425 | * configure the card at this point -- we wait until we receive a |
| 426 | * card insertion event. |
| 427 | */ |
| 428 | static dev_link_t *netwave_attach(void) |
| 429 | { |
| 430 | client_reg_t client_reg; |
| 431 | dev_link_t *link; |
| 432 | struct net_device *dev; |
| 433 | netwave_private *priv; |
| 434 | int ret; |
| 435 | |
| 436 | DEBUG(0, "netwave_attach()\n"); |
| 437 | |
| 438 | /* Initialize the dev_link_t structure */ |
| 439 | dev = alloc_etherdev(sizeof(netwave_private)); |
| 440 | if (!dev) |
| 441 | return NULL; |
| 442 | priv = netdev_priv(dev); |
| 443 | link = &priv->link; |
| 444 | link->priv = dev; |
| 445 | |
| 446 | /* The io structure describes IO port mapping */ |
| 447 | link->io.NumPorts1 = 16; |
| 448 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 449 | /* link->io.NumPorts2 = 16; |
| 450 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */ |
| 451 | link->io.IOAddrLines = 5; |
| 452 | |
| 453 | /* Interrupt setup */ |
| 454 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 455 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 456 | link->irq.Handler = &netwave_interrupt; |
| 457 | |
| 458 | /* General socket configuration */ |
| 459 | link->conf.Attributes = CONF_ENABLE_IRQ; |
| 460 | link->conf.Vcc = 50; |
| 461 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 462 | link->conf.ConfigIndex = 1; |
| 463 | link->conf.Present = PRESENT_OPTION; |
| 464 | |
| 465 | /* Netwave private struct init. link/dev/node already taken care of, |
| 466 | * other stuff zero'd - Jean II */ |
| 467 | spin_lock_init(&priv->spinlock); |
| 468 | |
| 469 | /* Netwave specific entries in the device structure */ |
| 470 | SET_MODULE_OWNER(dev); |
| 471 | dev->hard_start_xmit = &netwave_start_xmit; |
| 472 | dev->get_stats = &netwave_get_stats; |
| 473 | dev->set_multicast_list = &set_multicast_list; |
| 474 | /* wireless extensions */ |
| 475 | #ifdef WIRELESS_EXT |
| 476 | dev->get_wireless_stats = &netwave_get_wireless_stats; |
| 477 | #if WIRELESS_EXT > 12 |
| 478 | dev->wireless_handlers = (struct iw_handler_def *)&netwave_handler_def; |
| 479 | #endif /* WIRELESS_EXT > 12 */ |
| 480 | #endif /* WIRELESS_EXT */ |
| 481 | dev->do_ioctl = &netwave_ioctl; |
| 482 | |
| 483 | dev->tx_timeout = &netwave_watchdog; |
| 484 | dev->watchdog_timeo = TX_TIMEOUT; |
| 485 | |
| 486 | dev->open = &netwave_open; |
| 487 | dev->stop = &netwave_close; |
| 488 | link->irq.Instance = dev; |
| 489 | |
| 490 | /* Register with Card Services */ |
| 491 | link->next = dev_list; |
| 492 | dev_list = link; |
| 493 | client_reg.dev_info = &dev_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | client_reg.Version = 0x0210; |
| 495 | client_reg.event_callback_args.client_data = link; |
| 496 | ret = pcmcia_register_client(&link->handle, &client_reg); |
| 497 | if (ret != 0) { |
| 498 | cs_error(link->handle, RegisterClient, ret); |
| 499 | netwave_detach(link); |
| 500 | return NULL; |
| 501 | } |
| 502 | |
| 503 | return link; |
| 504 | } /* netwave_attach */ |
| 505 | |
| 506 | /* |
| 507 | * Function netwave_detach (link) |
| 508 | * |
| 509 | * This deletes a driver "instance". The device is de-registered |
| 510 | * with Card Services. If it has been released, all local data |
| 511 | * structures are freed. Otherwise, the structures will be freed |
| 512 | * when the device is released. |
| 513 | */ |
| 514 | static void netwave_detach(dev_link_t *link) |
| 515 | { |
| 516 | struct net_device *dev = link->priv; |
| 517 | dev_link_t **linkp; |
| 518 | |
| 519 | DEBUG(0, "netwave_detach(0x%p)\n", link); |
| 520 | |
| 521 | /* |
| 522 | If the device is currently configured and active, we won't |
| 523 | actually delete it yet. Instead, it is marked so that when |
| 524 | the release() function is called, that will trigger a proper |
| 525 | detach(). |
| 526 | */ |
| 527 | if (link->state & DEV_CONFIG) |
| 528 | netwave_release(link); |
| 529 | |
| 530 | /* Break the link with Card Services */ |
| 531 | if (link->handle) |
| 532 | pcmcia_deregister_client(link->handle); |
| 533 | |
| 534 | /* Locate device structure */ |
| 535 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) |
| 536 | if (*linkp == link) break; |
| 537 | if (*linkp == NULL) |
| 538 | { |
| 539 | DEBUG(1, "netwave_cs: detach fail, '%s' not in list\n", |
| 540 | link->dev->dev_name); |
| 541 | return; |
| 542 | } |
| 543 | |
| 544 | /* Unlink device structure, free pieces */ |
| 545 | *linkp = link->next; |
| 546 | if (link->dev) |
| 547 | unregister_netdev(dev); |
| 548 | free_netdev(dev); |
| 549 | |
| 550 | } /* netwave_detach */ |
| 551 | |
| 552 | /* |
| 553 | * Wireless Handler : get protocol name |
| 554 | */ |
| 555 | static int netwave_get_name(struct net_device *dev, |
| 556 | struct iw_request_info *info, |
| 557 | union iwreq_data *wrqu, |
| 558 | char *extra) |
| 559 | { |
| 560 | strcpy(wrqu->name, "Netwave"); |
| 561 | return 0; |
| 562 | } |
| 563 | |
| 564 | /* |
| 565 | * Wireless Handler : set Network ID |
| 566 | */ |
| 567 | static int netwave_set_nwid(struct net_device *dev, |
| 568 | struct iw_request_info *info, |
| 569 | union iwreq_data *wrqu, |
| 570 | char *extra) |
| 571 | { |
| 572 | unsigned long flags; |
| 573 | kio_addr_t iobase = dev->base_addr; |
| 574 | netwave_private *priv = netdev_priv(dev); |
| 575 | u_char __iomem *ramBase = priv->ramBase; |
| 576 | |
| 577 | /* Disable interrupts & save flags */ |
| 578 | spin_lock_irqsave(&priv->spinlock, flags); |
| 579 | |
| 580 | #if WIRELESS_EXT > 8 |
| 581 | if(!wrqu->nwid.disabled) { |
| 582 | domain = wrqu->nwid.value; |
| 583 | #else /* WIRELESS_EXT > 8 */ |
| 584 | if(wrqu->nwid.on) { |
| 585 | domain = wrqu->nwid.nwid; |
| 586 | #endif /* WIRELESS_EXT > 8 */ |
| 587 | printk( KERN_DEBUG "Setting domain to 0x%x%02x\n", |
| 588 | (domain >> 8) & 0x01, domain & 0xff); |
| 589 | wait_WOC(iobase); |
| 590 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); |
| 591 | writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 592 | writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2); |
| 593 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 594 | } |
| 595 | |
| 596 | /* ReEnable interrupts & restore flags */ |
| 597 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 598 | |
| 599 | return 0; |
| 600 | } |
| 601 | |
| 602 | /* |
| 603 | * Wireless Handler : get Network ID |
| 604 | */ |
| 605 | static int netwave_get_nwid(struct net_device *dev, |
| 606 | struct iw_request_info *info, |
| 607 | union iwreq_data *wrqu, |
| 608 | char *extra) |
| 609 | { |
| 610 | #if WIRELESS_EXT > 8 |
| 611 | wrqu->nwid.value = domain; |
| 612 | wrqu->nwid.disabled = 0; |
| 613 | wrqu->nwid.fixed = 1; |
| 614 | #else /* WIRELESS_EXT > 8 */ |
| 615 | wrqu->nwid.nwid = domain; |
| 616 | wrqu->nwid.on = 1; |
| 617 | #endif /* WIRELESS_EXT > 8 */ |
| 618 | |
| 619 | return 0; |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * Wireless Handler : set scramble key |
| 624 | */ |
| 625 | static int netwave_set_scramble(struct net_device *dev, |
| 626 | struct iw_request_info *info, |
| 627 | union iwreq_data *wrqu, |
| 628 | char *key) |
| 629 | { |
| 630 | unsigned long flags; |
| 631 | kio_addr_t iobase = dev->base_addr; |
| 632 | netwave_private *priv = netdev_priv(dev); |
| 633 | u_char __iomem *ramBase = priv->ramBase; |
| 634 | |
| 635 | /* Disable interrupts & save flags */ |
| 636 | spin_lock_irqsave(&priv->spinlock, flags); |
| 637 | |
| 638 | scramble_key = (key[0] << 8) | key[1]; |
| 639 | wait_WOC(iobase); |
| 640 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); |
| 641 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 642 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 643 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 644 | |
| 645 | /* ReEnable interrupts & restore flags */ |
| 646 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 647 | |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | /* |
| 652 | * Wireless Handler : get scramble key |
| 653 | */ |
| 654 | static int netwave_get_scramble(struct net_device *dev, |
| 655 | struct iw_request_info *info, |
| 656 | union iwreq_data *wrqu, |
| 657 | char *key) |
| 658 | { |
| 659 | key[1] = scramble_key & 0xff; |
| 660 | key[0] = (scramble_key>>8) & 0xff; |
| 661 | #if WIRELESS_EXT > 8 |
| 662 | wrqu->encoding.flags = IW_ENCODE_ENABLED; |
| 663 | wrqu->encoding.length = 2; |
| 664 | #else /* WIRELESS_EXT > 8 */ |
| 665 | wrqu->encoding.method = 1; |
| 666 | #endif /* WIRELESS_EXT > 8 */ |
| 667 | |
| 668 | return 0; |
| 669 | } |
| 670 | |
| 671 | #if WIRELESS_EXT > 8 |
| 672 | /* |
| 673 | * Wireless Handler : get mode |
| 674 | */ |
| 675 | static int netwave_get_mode(struct net_device *dev, |
| 676 | struct iw_request_info *info, |
| 677 | union iwreq_data *wrqu, |
| 678 | char *extra) |
| 679 | { |
| 680 | if(domain & 0x100) |
| 681 | wrqu->mode = IW_MODE_INFRA; |
| 682 | else |
| 683 | wrqu->mode = IW_MODE_ADHOC; |
| 684 | |
| 685 | return 0; |
| 686 | } |
| 687 | #endif /* WIRELESS_EXT > 8 */ |
| 688 | |
| 689 | /* |
| 690 | * Wireless Handler : get range info |
| 691 | */ |
| 692 | static int netwave_get_range(struct net_device *dev, |
| 693 | struct iw_request_info *info, |
| 694 | union iwreq_data *wrqu, |
| 695 | char *extra) |
| 696 | { |
| 697 | struct iw_range *range = (struct iw_range *) extra; |
| 698 | int ret = 0; |
| 699 | |
| 700 | /* Set the length (very important for backward compatibility) */ |
| 701 | wrqu->data.length = sizeof(struct iw_range); |
| 702 | |
| 703 | /* Set all the info we don't care or don't know about to zero */ |
| 704 | memset(range, 0, sizeof(struct iw_range)); |
| 705 | |
| 706 | #if WIRELESS_EXT > 10 |
| 707 | /* Set the Wireless Extension versions */ |
| 708 | range->we_version_compiled = WIRELESS_EXT; |
| 709 | range->we_version_source = 9; /* Nothing for us in v10 and v11 */ |
| 710 | #endif /* WIRELESS_EXT > 10 */ |
| 711 | |
| 712 | /* Set information in the range struct */ |
| 713 | range->throughput = 450 * 1000; /* don't argue on this ! */ |
| 714 | range->min_nwid = 0x0000; |
| 715 | range->max_nwid = 0x01FF; |
| 716 | |
| 717 | range->num_channels = range->num_frequency = 0; |
| 718 | |
| 719 | range->sensitivity = 0x3F; |
| 720 | range->max_qual.qual = 255; |
| 721 | range->max_qual.level = 255; |
| 722 | range->max_qual.noise = 0; |
| 723 | |
| 724 | #if WIRELESS_EXT > 7 |
| 725 | range->num_bitrates = 1; |
| 726 | range->bitrate[0] = 1000000; /* 1 Mb/s */ |
| 727 | #endif /* WIRELESS_EXT > 7 */ |
| 728 | |
| 729 | #if WIRELESS_EXT > 8 |
| 730 | range->encoding_size[0] = 2; /* 16 bits scrambling */ |
| 731 | range->num_encoding_sizes = 1; |
| 732 | range->max_encoding_tokens = 1; /* Only one key possible */ |
| 733 | #endif /* WIRELESS_EXT > 8 */ |
| 734 | |
| 735 | return ret; |
| 736 | } |
| 737 | |
| 738 | /* |
| 739 | * Wireless Private Handler : get snapshot |
| 740 | */ |
| 741 | static int netwave_get_snap(struct net_device *dev, |
| 742 | struct iw_request_info *info, |
| 743 | union iwreq_data *wrqu, |
| 744 | char *extra) |
| 745 | { |
| 746 | unsigned long flags; |
| 747 | kio_addr_t iobase = dev->base_addr; |
| 748 | netwave_private *priv = netdev_priv(dev); |
| 749 | u_char __iomem *ramBase = priv->ramBase; |
| 750 | |
| 751 | /* Disable interrupts & save flags */ |
| 752 | spin_lock_irqsave(&priv->spinlock, flags); |
| 753 | |
| 754 | /* Take snapshot of environment */ |
| 755 | netwave_snapshot( priv, ramBase, iobase); |
| 756 | wrqu->data.length = priv->nss.length; |
| 757 | memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey)); |
| 758 | |
| 759 | priv->lastExec = jiffies; |
| 760 | |
| 761 | /* ReEnable interrupts & restore flags */ |
| 762 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 763 | |
| 764 | return(0); |
| 765 | } |
| 766 | |
| 767 | /* |
| 768 | * Structures to export the Wireless Handlers |
| 769 | * This is the stuff that are treated the wireless extensions (iwconfig) |
| 770 | */ |
| 771 | |
| 772 | static const struct iw_priv_args netwave_private_args[] = { |
| 773 | /*{ cmd, set_args, get_args, name } */ |
| 774 | { SIOCGIPSNAP, 0, |
| 775 | IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey), |
| 776 | "getsitesurvey" }, |
| 777 | }; |
| 778 | |
| 779 | #if WIRELESS_EXT > 12 |
| 780 | |
| 781 | static const iw_handler netwave_handler[] = |
| 782 | { |
| 783 | NULL, /* SIOCSIWNAME */ |
| 784 | netwave_get_name, /* SIOCGIWNAME */ |
| 785 | netwave_set_nwid, /* SIOCSIWNWID */ |
| 786 | netwave_get_nwid, /* SIOCGIWNWID */ |
| 787 | NULL, /* SIOCSIWFREQ */ |
| 788 | NULL, /* SIOCGIWFREQ */ |
| 789 | NULL, /* SIOCSIWMODE */ |
| 790 | netwave_get_mode, /* SIOCGIWMODE */ |
| 791 | NULL, /* SIOCSIWSENS */ |
| 792 | NULL, /* SIOCGIWSENS */ |
| 793 | NULL, /* SIOCSIWRANGE */ |
| 794 | netwave_get_range, /* SIOCGIWRANGE */ |
| 795 | NULL, /* SIOCSIWPRIV */ |
| 796 | NULL, /* SIOCGIWPRIV */ |
| 797 | NULL, /* SIOCSIWSTATS */ |
| 798 | NULL, /* SIOCGIWSTATS */ |
| 799 | NULL, /* SIOCSIWSPY */ |
| 800 | NULL, /* SIOCGIWSPY */ |
| 801 | NULL, /* -- hole -- */ |
| 802 | NULL, /* -- hole -- */ |
| 803 | NULL, /* SIOCSIWAP */ |
| 804 | NULL, /* SIOCGIWAP */ |
| 805 | NULL, /* -- hole -- */ |
| 806 | NULL, /* SIOCGIWAPLIST */ |
| 807 | NULL, /* -- hole -- */ |
| 808 | NULL, /* -- hole -- */ |
| 809 | NULL, /* SIOCSIWESSID */ |
| 810 | NULL, /* SIOCGIWESSID */ |
| 811 | NULL, /* SIOCSIWNICKN */ |
| 812 | NULL, /* SIOCGIWNICKN */ |
| 813 | NULL, /* -- hole -- */ |
| 814 | NULL, /* -- hole -- */ |
| 815 | NULL, /* SIOCSIWRATE */ |
| 816 | NULL, /* SIOCGIWRATE */ |
| 817 | NULL, /* SIOCSIWRTS */ |
| 818 | NULL, /* SIOCGIWRTS */ |
| 819 | NULL, /* SIOCSIWFRAG */ |
| 820 | NULL, /* SIOCGIWFRAG */ |
| 821 | NULL, /* SIOCSIWTXPOW */ |
| 822 | NULL, /* SIOCGIWTXPOW */ |
| 823 | NULL, /* SIOCSIWRETRY */ |
| 824 | NULL, /* SIOCGIWRETRY */ |
| 825 | netwave_set_scramble, /* SIOCSIWENCODE */ |
| 826 | netwave_get_scramble, /* SIOCGIWENCODE */ |
| 827 | }; |
| 828 | |
| 829 | static const iw_handler netwave_private_handler[] = |
| 830 | { |
| 831 | NULL, /* SIOCIWFIRSTPRIV */ |
| 832 | netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */ |
| 833 | }; |
| 834 | |
| 835 | static const struct iw_handler_def netwave_handler_def = |
| 836 | { |
| 837 | .num_standard = sizeof(netwave_handler)/sizeof(iw_handler), |
| 838 | .num_private = sizeof(netwave_private_handler)/sizeof(iw_handler), |
| 839 | .num_private_args = sizeof(netwave_private_args)/sizeof(struct iw_priv_args), |
| 840 | .standard = (iw_handler *) netwave_handler, |
| 841 | .private = (iw_handler *) netwave_private_handler, |
| 842 | .private_args = (struct iw_priv_args *) netwave_private_args, |
| 843 | }; |
| 844 | #endif /* WIRELESS_EXT > 12 */ |
| 845 | |
| 846 | /* |
| 847 | * Function netwave_ioctl (dev, rq, cmd) |
| 848 | * |
| 849 | * Perform ioctl : config & info stuff |
| 850 | * This is the stuff that are treated the wireless extensions (iwconfig) |
| 851 | * |
| 852 | */ |
| 853 | static int netwave_ioctl(struct net_device *dev, /* ioctl device */ |
| 854 | struct ifreq *rq, /* Data passed */ |
| 855 | int cmd) /* Ioctl number */ |
| 856 | { |
| 857 | int ret = 0; |
| 858 | #ifdef WIRELESS_EXT |
| 859 | #if WIRELESS_EXT <= 12 |
| 860 | struct iwreq *wrq = (struct iwreq *) rq; |
| 861 | #endif |
| 862 | #endif |
| 863 | |
| 864 | DEBUG(0, "%s: ->netwave_ioctl(cmd=0x%X)\n", dev->name, cmd); |
| 865 | |
| 866 | /* Look what is the request */ |
| 867 | switch(cmd) { |
| 868 | /* --------------- WIRELESS EXTENSIONS --------------- */ |
| 869 | #ifdef WIRELESS_EXT |
| 870 | #if WIRELESS_EXT <= 12 |
| 871 | case SIOCGIWNAME: |
| 872 | netwave_get_name(dev, NULL, &(wrq->u), NULL); |
| 873 | break; |
| 874 | case SIOCSIWNWID: |
| 875 | ret = netwave_set_nwid(dev, NULL, &(wrq->u), NULL); |
| 876 | break; |
| 877 | case SIOCGIWNWID: |
| 878 | ret = netwave_get_nwid(dev, NULL, &(wrq->u), NULL); |
| 879 | break; |
| 880 | #if WIRELESS_EXT > 8 /* Note : The API did change... */ |
| 881 | case SIOCGIWENCODE: |
| 882 | /* Get scramble key */ |
| 883 | if(wrq->u.encoding.pointer != (caddr_t) 0) |
| 884 | { |
| 885 | char key[2]; |
| 886 | ret = netwave_get_scramble(dev, NULL, &(wrq->u), key); |
| 887 | if(copy_to_user(wrq->u.encoding.pointer, key, 2)) |
| 888 | ret = -EFAULT; |
| 889 | } |
| 890 | break; |
| 891 | case SIOCSIWENCODE: |
| 892 | /* Set scramble key */ |
| 893 | if(wrq->u.encoding.pointer != (caddr_t) 0) |
| 894 | { |
| 895 | char key[2]; |
| 896 | if(copy_from_user(key, wrq->u.encoding.pointer, 2)) |
| 897 | { |
| 898 | ret = -EFAULT; |
| 899 | break; |
| 900 | } |
| 901 | ret = netwave_set_scramble(dev, NULL, &(wrq->u), key); |
| 902 | } |
| 903 | break; |
| 904 | case SIOCGIWMODE: |
| 905 | /* Mode of operation */ |
| 906 | ret = netwave_get_mode(dev, NULL, &(wrq->u), NULL); |
| 907 | break; |
| 908 | #else /* WIRELESS_EXT > 8 */ |
| 909 | case SIOCGIWENCODE: |
| 910 | /* Get scramble key */ |
| 911 | ret = netwave_get_scramble(dev, NULL, &(wrq->u), |
| 912 | (char *) &wrq->u.encoding.code); |
| 913 | break; |
| 914 | case SIOCSIWENCODE: |
| 915 | /* Set scramble key */ |
| 916 | ret = netwave_set_scramble(dev, NULL, &(wrq->u), |
| 917 | (char *) &wrq->u.encoding.code); |
| 918 | break; |
| 919 | #endif /* WIRELESS_EXT > 8 */ |
| 920 | case SIOCGIWRANGE: |
| 921 | /* Basic checking... */ |
| 922 | if(wrq->u.data.pointer != (caddr_t) 0) { |
| 923 | struct iw_range range; |
| 924 | ret = netwave_get_range(dev, NULL, &(wrq->u), (char *) &range); |
| 925 | if (copy_to_user(wrq->u.data.pointer, &range, |
| 926 | sizeof(struct iw_range))) |
| 927 | ret = -EFAULT; |
| 928 | } |
| 929 | break; |
| 930 | case SIOCGIWPRIV: |
| 931 | /* Basic checking... */ |
| 932 | if(wrq->u.data.pointer != (caddr_t) 0) { |
| 933 | /* Set the number of ioctl available */ |
| 934 | wrq->u.data.length = sizeof(netwave_private_args) / sizeof(netwave_private_args[0]); |
| 935 | |
| 936 | /* Copy structure to the user buffer */ |
| 937 | if(copy_to_user(wrq->u.data.pointer, |
| 938 | (u_char *) netwave_private_args, |
| 939 | sizeof(netwave_private_args))) |
| 940 | ret = -EFAULT; |
| 941 | } |
| 942 | break; |
| 943 | case SIOCGIPSNAP: |
| 944 | if(wrq->u.data.pointer != (caddr_t) 0) { |
| 945 | char buffer[sizeof( struct site_survey)]; |
| 946 | ret = netwave_get_snap(dev, NULL, &(wrq->u), buffer); |
| 947 | /* Copy structure to the user buffer */ |
| 948 | if(copy_to_user(wrq->u.data.pointer, |
| 949 | buffer, |
| 950 | sizeof( struct site_survey))) |
| 951 | { |
| 952 | printk(KERN_DEBUG "Bad buffer!\n"); |
| 953 | break; |
| 954 | } |
| 955 | } |
| 956 | break; |
| 957 | #endif /* WIRELESS_EXT <= 12 */ |
| 958 | #endif /* WIRELESS_EXT */ |
| 959 | default: |
| 960 | ret = -EOPNOTSUPP; |
| 961 | } |
| 962 | |
| 963 | return ret; |
| 964 | } |
| 965 | |
| 966 | /* |
| 967 | * Function netwave_pcmcia_config (link) |
| 968 | * |
| 969 | * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION |
| 970 | * event is received, to configure the PCMCIA socket, and to make the |
| 971 | * device available to the system. |
| 972 | * |
| 973 | */ |
| 974 | |
| 975 | #define CS_CHECK(fn, ret) \ |
| 976 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| 977 | |
| 978 | static void netwave_pcmcia_config(dev_link_t *link) { |
| 979 | client_handle_t handle = link->handle; |
| 980 | struct net_device *dev = link->priv; |
| 981 | netwave_private *priv = netdev_priv(dev); |
| 982 | tuple_t tuple; |
| 983 | cisparse_t parse; |
| 984 | int i, j, last_ret, last_fn; |
| 985 | u_char buf[64]; |
| 986 | win_req_t req; |
| 987 | memreq_t mem; |
| 988 | u_char __iomem *ramBase = NULL; |
| 989 | |
| 990 | DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link); |
| 991 | |
| 992 | /* |
| 993 | This reads the card's CONFIG tuple to find its configuration |
| 994 | registers. |
| 995 | */ |
| 996 | tuple.Attributes = 0; |
| 997 | tuple.TupleData = (cisdata_t *) buf; |
| 998 | tuple.TupleDataMax = 64; |
| 999 | tuple.TupleOffset = 0; |
| 1000 | tuple.DesiredTuple = CISTPL_CONFIG; |
| 1001 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| 1002 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); |
| 1003 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); |
| 1004 | link->conf.ConfigBase = parse.config.base; |
| 1005 | link->conf.Present = parse.config.rmask[0]; |
| 1006 | |
| 1007 | /* Configure card */ |
| 1008 | link->state |= DEV_CONFIG; |
| 1009 | |
| 1010 | /* |
| 1011 | * Try allocating IO ports. This tries a few fixed addresses. |
| 1012 | * If you want, you can also read the card's config table to |
| 1013 | * pick addresses -- see the serial driver for an example. |
| 1014 | */ |
| 1015 | for (i = j = 0x0; j < 0x400; j += 0x20) { |
| 1016 | link->io.BasePort1 = j ^ 0x300; |
| 1017 | i = pcmcia_request_io(link->handle, &link->io); |
| 1018 | if (i == CS_SUCCESS) break; |
| 1019 | } |
| 1020 | if (i != CS_SUCCESS) { |
| 1021 | cs_error(link->handle, RequestIO, i); |
| 1022 | goto failed; |
| 1023 | } |
| 1024 | |
| 1025 | /* |
| 1026 | * Now allocate an interrupt line. Note that this does not |
| 1027 | * actually assign a handler to the interrupt. |
| 1028 | */ |
| 1029 | CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq)); |
| 1030 | |
| 1031 | /* |
| 1032 | * This actually configures the PCMCIA socket -- setting up |
| 1033 | * the I/O windows and the interrupt mapping. |
| 1034 | */ |
| 1035 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); |
| 1036 | |
| 1037 | /* |
| 1038 | * Allocate a 32K memory window. Note that the dev_link_t |
| 1039 | * structure provides space for one window handle -- if your |
| 1040 | * device needs several windows, you'll need to keep track of |
| 1041 | * the handles in your private data structure, dev->priv. |
| 1042 | */ |
| 1043 | DEBUG(1, "Setting mem speed of %d\n", mem_speed); |
| 1044 | |
| 1045 | req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE; |
| 1046 | req.Base = 0; req.Size = 0x8000; |
| 1047 | req.AccessSpeed = mem_speed; |
| 1048 | CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win)); |
| 1049 | mem.CardOffset = 0x20000; mem.Page = 0; |
| 1050 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); |
| 1051 | |
| 1052 | /* Store base address of the common window frame */ |
| 1053 | ramBase = ioremap(req.Base, 0x8000); |
| 1054 | priv->ramBase = ramBase; |
| 1055 | |
| 1056 | dev->irq = link->irq.AssignedIRQ; |
| 1057 | dev->base_addr = link->io.BasePort1; |
| 1058 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); |
| 1059 | |
| 1060 | if (register_netdev(dev) != 0) { |
| 1061 | printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n"); |
| 1062 | goto failed; |
| 1063 | } |
| 1064 | |
| 1065 | strcpy(priv->node.dev_name, dev->name); |
| 1066 | link->dev = &priv->node; |
| 1067 | link->state &= ~DEV_CONFIG_PENDING; |
| 1068 | |
| 1069 | /* Reset card before reading physical address */ |
| 1070 | netwave_doreset(dev->base_addr, ramBase); |
| 1071 | |
| 1072 | /* Read the ethernet address and fill in the Netwave registers. */ |
| 1073 | for (i = 0; i < 6; i++) |
| 1074 | dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i); |
| 1075 | |
| 1076 | printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx id " |
| 1077 | "%c%c, hw_addr ", dev->name, dev->base_addr, dev->irq, |
| 1078 | (u_long) ramBase, (int) readb(ramBase+NETWAVE_EREG_NI), |
| 1079 | (int) readb(ramBase+NETWAVE_EREG_NI+1)); |
| 1080 | for (i = 0; i < 6; i++) |
| 1081 | printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n")); |
| 1082 | |
| 1083 | /* get revision words */ |
| 1084 | printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n", |
| 1085 | get_uint16(ramBase + NETWAVE_EREG_ARW), |
| 1086 | get_uint16(ramBase + NETWAVE_EREG_ARW+2)); |
| 1087 | return; |
| 1088 | |
| 1089 | cs_failed: |
| 1090 | cs_error(link->handle, last_fn, last_ret); |
| 1091 | failed: |
| 1092 | netwave_release(link); |
| 1093 | } /* netwave_pcmcia_config */ |
| 1094 | |
| 1095 | /* |
| 1096 | * Function netwave_release (arg) |
| 1097 | * |
| 1098 | * After a card is removed, netwave_release() will unregister the net |
| 1099 | * device, and release the PCMCIA configuration. If the device is |
| 1100 | * still open, this will be postponed until it is closed. |
| 1101 | */ |
| 1102 | static void netwave_release(dev_link_t *link) |
| 1103 | { |
| 1104 | struct net_device *dev = link->priv; |
| 1105 | netwave_private *priv = netdev_priv(dev); |
| 1106 | |
| 1107 | DEBUG(0, "netwave_release(0x%p)\n", link); |
| 1108 | |
| 1109 | /* Don't bother checking to see if these succeed or not */ |
| 1110 | if (link->win) { |
| 1111 | iounmap(priv->ramBase); |
| 1112 | pcmcia_release_window(link->win); |
| 1113 | } |
| 1114 | pcmcia_release_configuration(link->handle); |
| 1115 | pcmcia_release_io(link->handle, &link->io); |
| 1116 | pcmcia_release_irq(link->handle, &link->irq); |
| 1117 | |
| 1118 | link->state &= ~DEV_CONFIG; |
| 1119 | } |
| 1120 | |
| 1121 | /* |
| 1122 | * Function netwave_event (event, priority, args) |
| 1123 | * |
| 1124 | * The card status event handler. Mostly, this schedules other |
| 1125 | * stuff to run after an event is received. A CARD_REMOVAL event |
| 1126 | * also sets some flags to discourage the net drivers from trying |
| 1127 | * to talk to the card any more. |
| 1128 | * |
| 1129 | * When a CARD_REMOVAL event is received, we immediately set a flag |
| 1130 | * to block future accesses to this device. All the functions that |
| 1131 | * actually access the device should check this flag to make sure |
| 1132 | * the card is still present. |
| 1133 | * |
| 1134 | */ |
| 1135 | static int netwave_event(event_t event, int priority, |
| 1136 | event_callback_args_t *args) |
| 1137 | { |
| 1138 | dev_link_t *link = args->client_data; |
| 1139 | struct net_device *dev = link->priv; |
| 1140 | |
| 1141 | DEBUG(1, "netwave_event(0x%06x)\n", event); |
| 1142 | |
| 1143 | switch (event) { |
| 1144 | case CS_EVENT_REGISTRATION_COMPLETE: |
| 1145 | DEBUG(0, "netwave_cs: registration complete\n"); |
| 1146 | break; |
| 1147 | |
| 1148 | case CS_EVENT_CARD_REMOVAL: |
| 1149 | link->state &= ~DEV_PRESENT; |
| 1150 | if (link->state & DEV_CONFIG) { |
| 1151 | netif_device_detach(dev); |
| 1152 | netwave_release(link); |
| 1153 | } |
| 1154 | break; |
| 1155 | case CS_EVENT_CARD_INSERTION: |
| 1156 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| 1157 | netwave_pcmcia_config( link); |
| 1158 | break; |
| 1159 | case CS_EVENT_PM_SUSPEND: |
| 1160 | link->state |= DEV_SUSPEND; |
| 1161 | /* Fall through... */ |
| 1162 | case CS_EVENT_RESET_PHYSICAL: |
| 1163 | if (link->state & DEV_CONFIG) { |
| 1164 | if (link->open) |
| 1165 | netif_device_detach(dev); |
| 1166 | pcmcia_release_configuration(link->handle); |
| 1167 | } |
| 1168 | break; |
| 1169 | case CS_EVENT_PM_RESUME: |
| 1170 | link->state &= ~DEV_SUSPEND; |
| 1171 | /* Fall through... */ |
| 1172 | case CS_EVENT_CARD_RESET: |
| 1173 | if (link->state & DEV_CONFIG) { |
| 1174 | pcmcia_request_configuration(link->handle, &link->conf); |
| 1175 | if (link->open) { |
| 1176 | netwave_reset(dev); |
| 1177 | netif_device_attach(dev); |
| 1178 | } |
| 1179 | } |
| 1180 | break; |
| 1181 | } |
| 1182 | return 0; |
| 1183 | } /* netwave_event */ |
| 1184 | |
| 1185 | /* |
| 1186 | * Function netwave_doreset (ioBase, ramBase) |
| 1187 | * |
| 1188 | * Proper hardware reset of the card. |
| 1189 | */ |
| 1190 | static void netwave_doreset(kio_addr_t ioBase, u_char __iomem *ramBase) |
| 1191 | { |
| 1192 | /* Reset card */ |
| 1193 | wait_WOC(ioBase); |
| 1194 | outb(0x80, ioBase + NETWAVE_REG_PMR); |
| 1195 | writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */ |
| 1196 | outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */ |
| 1197 | } |
| 1198 | |
| 1199 | /* |
| 1200 | * Function netwave_reset (dev) |
| 1201 | * |
| 1202 | * Reset and restore all of the netwave registers |
| 1203 | */ |
| 1204 | static void netwave_reset(struct net_device *dev) { |
| 1205 | /* u_char state; */ |
| 1206 | netwave_private *priv = netdev_priv(dev); |
| 1207 | u_char __iomem *ramBase = priv->ramBase; |
| 1208 | kio_addr_t iobase = dev->base_addr; |
| 1209 | |
| 1210 | DEBUG(0, "netwave_reset: Done with hardware reset\n"); |
| 1211 | |
| 1212 | priv->timeoutCounter = 0; |
| 1213 | |
| 1214 | /* Reset card */ |
| 1215 | netwave_doreset(iobase, ramBase); |
| 1216 | printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n"); |
| 1217 | |
| 1218 | /* Write a NOP to check the card */ |
| 1219 | wait_WOC(iobase); |
| 1220 | writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0); |
| 1221 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1222 | |
| 1223 | /* Set receive conf */ |
| 1224 | wait_WOC(iobase); |
| 1225 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); |
| 1226 | writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1); |
| 1227 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 1228 | |
| 1229 | /* Set transmit conf */ |
| 1230 | wait_WOC(iobase); |
| 1231 | writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0); |
| 1232 | writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1); |
| 1233 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 1234 | |
| 1235 | /* Now set the MU Domain */ |
| 1236 | printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff); |
| 1237 | wait_WOC(iobase); |
| 1238 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); |
| 1239 | writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 1240 | writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2); |
| 1241 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 1242 | |
| 1243 | /* Set scramble key */ |
| 1244 | printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key); |
| 1245 | wait_WOC(iobase); |
| 1246 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); |
| 1247 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 1248 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 1249 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 1250 | |
| 1251 | /* Enable interrupts, bit 4 high to keep unused |
| 1252 | * source from interrupting us, bit 2 high to |
| 1253 | * set interrupt enable, 567 to enable TxDN, |
| 1254 | * RxErr and RxRdy |
| 1255 | */ |
| 1256 | wait_WOC(iobase); |
| 1257 | outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR); |
| 1258 | |
| 1259 | /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36 |
| 1260 | * waitWOC |
| 1261 | * skriv 80 til d000:3688 |
| 1262 | * sjekk om det ble 80 |
| 1263 | */ |
| 1264 | |
| 1265 | /* Enable Receiver */ |
| 1266 | wait_WOC(iobase); |
| 1267 | writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0); |
| 1268 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1269 | |
| 1270 | /* Set the IENA bit in COR */ |
| 1271 | wait_WOC(iobase); |
| 1272 | outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR); |
| 1273 | } |
| 1274 | |
| 1275 | /* |
| 1276 | * Function netwave_hw_xmit (data, len, dev) |
| 1277 | */ |
| 1278 | static int netwave_hw_xmit(unsigned char* data, int len, |
| 1279 | struct net_device* dev) { |
| 1280 | unsigned long flags; |
| 1281 | unsigned int TxFreeList, |
| 1282 | curBuff, |
| 1283 | MaxData, |
| 1284 | DataOffset; |
| 1285 | int tmpcount; |
| 1286 | |
| 1287 | netwave_private *priv = netdev_priv(dev); |
| 1288 | u_char __iomem * ramBase = priv->ramBase; |
| 1289 | kio_addr_t iobase = dev->base_addr; |
| 1290 | |
| 1291 | /* Disable interrupts & save flags */ |
| 1292 | spin_lock_irqsave(&priv->spinlock, flags); |
| 1293 | |
| 1294 | /* Check if there are transmit buffers available */ |
| 1295 | wait_WOC(iobase); |
| 1296 | if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) { |
| 1297 | /* No buffers available */ |
| 1298 | printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n", |
| 1299 | dev->name); |
| 1300 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 1301 | return 1; |
| 1302 | } |
| 1303 | |
| 1304 | priv->stats.tx_bytes += len; |
| 1305 | |
| 1306 | DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n", |
| 1307 | readb(ramBase + NETWAVE_EREG_SPCQ), |
| 1308 | readb(ramBase + NETWAVE_EREG_SPU), |
| 1309 | readb(ramBase + NETWAVE_EREG_LIF), |
| 1310 | readb(ramBase + NETWAVE_EREG_ISPLQ)); |
| 1311 | |
| 1312 | /* Now try to insert it into the adapters free memory */ |
| 1313 | wait_WOC(iobase); |
| 1314 | TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP); |
| 1315 | MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2); |
| 1316 | DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4); |
| 1317 | |
| 1318 | DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n", |
| 1319 | TxFreeList, MaxData, DataOffset); |
| 1320 | |
| 1321 | /* Copy packet to the adapter fragment buffers */ |
| 1322 | curBuff = TxFreeList; |
| 1323 | tmpcount = 0; |
| 1324 | while (tmpcount < len) { |
| 1325 | int tmplen = len - tmpcount; |
| 1326 | copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount, |
| 1327 | (tmplen < MaxData) ? tmplen : MaxData); |
| 1328 | tmpcount += MaxData; |
| 1329 | |
| 1330 | /* Advance to next buffer */ |
| 1331 | curBuff = get_uint16(ramBase + curBuff); |
| 1332 | } |
| 1333 | |
| 1334 | /* Now issue transmit list */ |
| 1335 | wait_WOC(iobase); |
| 1336 | writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0); |
| 1337 | writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1); |
| 1338 | writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); |
| 1339 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); |
| 1340 | |
| 1341 | spin_unlock_irqrestore(&priv->spinlock, flags); |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) { |
| 1346 | /* This flag indicate that the hardware can't perform a transmission. |
| 1347 | * Theoritically, NET3 check it before sending a packet to the driver, |
| 1348 | * but in fact it never do that and pool continuously. |
| 1349 | * As the watchdog will abort too long transmissions, we are quite safe... |
| 1350 | */ |
| 1351 | |
| 1352 | netif_stop_queue(dev); |
| 1353 | |
| 1354 | { |
| 1355 | short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; |
| 1356 | unsigned char* buf = skb->data; |
| 1357 | |
| 1358 | if (netwave_hw_xmit( buf, length, dev) == 1) { |
| 1359 | /* Some error, let's make them call us another time? */ |
| 1360 | netif_start_queue(dev); |
| 1361 | } |
| 1362 | dev->trans_start = jiffies; |
| 1363 | } |
| 1364 | dev_kfree_skb(skb); |
| 1365 | |
| 1366 | return 0; |
| 1367 | } /* netwave_start_xmit */ |
| 1368 | |
| 1369 | /* |
| 1370 | * Function netwave_interrupt (irq, dev_id, regs) |
| 1371 | * |
| 1372 | * This function is the interrupt handler for the Netwave card. This |
| 1373 | * routine will be called whenever: |
| 1374 | * 1. A packet is received. |
| 1375 | * 2. A packet has successfully been transferred and the unit is |
| 1376 | * ready to transmit another packet. |
| 1377 | * 3. A command has completed execution. |
| 1378 | */ |
| 1379 | static irqreturn_t netwave_interrupt(int irq, void* dev_id, struct pt_regs *regs) |
| 1380 | { |
| 1381 | kio_addr_t iobase; |
| 1382 | u_char __iomem *ramBase; |
| 1383 | struct net_device *dev = (struct net_device *)dev_id; |
| 1384 | struct netwave_private *priv = netdev_priv(dev); |
| 1385 | dev_link_t *link = &priv->link; |
| 1386 | int i; |
| 1387 | |
| 1388 | if (!netif_device_present(dev)) |
| 1389 | return IRQ_NONE; |
| 1390 | |
| 1391 | iobase = dev->base_addr; |
| 1392 | ramBase = priv->ramBase; |
| 1393 | |
| 1394 | /* Now find what caused the interrupt, check while interrupts ready */ |
| 1395 | for (i = 0; i < 10; i++) { |
| 1396 | u_char status; |
| 1397 | |
| 1398 | wait_WOC(iobase); |
| 1399 | if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02)) |
| 1400 | break; /* None of the interrupt sources asserted (normal exit) */ |
| 1401 | |
| 1402 | status = inb(iobase + NETWAVE_REG_ASR); |
| 1403 | |
| 1404 | if (!DEV_OK(link)) { |
| 1405 | DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x " |
| 1406 | "from removed or suspended card!\n", status); |
| 1407 | break; |
| 1408 | } |
| 1409 | |
| 1410 | /* RxRdy */ |
| 1411 | if (status & 0x80) { |
| 1412 | netwave_rx(dev); |
| 1413 | /* wait_WOC(iobase); */ |
| 1414 | /* RxRdy cannot be reset directly by the host */ |
| 1415 | } |
| 1416 | /* RxErr */ |
| 1417 | if (status & 0x40) { |
| 1418 | u_char rser; |
| 1419 | |
| 1420 | rser = readb(ramBase + NETWAVE_EREG_RSER); |
| 1421 | |
| 1422 | if (rser & 0x04) { |
| 1423 | ++priv->stats.rx_dropped; |
| 1424 | ++priv->stats.rx_crc_errors; |
| 1425 | } |
| 1426 | if (rser & 0x02) |
| 1427 | ++priv->stats.rx_frame_errors; |
| 1428 | |
| 1429 | /* Clear the RxErr bit in RSER. RSER+4 is the |
| 1430 | * write part. Also clear the RxCRC (0x04) and |
| 1431 | * RxBig (0x02) bits if present */ |
| 1432 | wait_WOC(iobase); |
| 1433 | writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4); |
| 1434 | |
| 1435 | /* Write bit 6 high to ASCC to clear RxErr in ASR, |
| 1436 | * WOC must be set first! |
| 1437 | */ |
| 1438 | wait_WOC(iobase); |
| 1439 | writeb(0x40, ramBase + NETWAVE_EREG_ASCC); |
| 1440 | |
| 1441 | /* Remember to count up priv->stats on error packets */ |
| 1442 | ++priv->stats.rx_errors; |
| 1443 | } |
| 1444 | /* TxDN */ |
| 1445 | if (status & 0x20) { |
| 1446 | int txStatus; |
| 1447 | |
| 1448 | txStatus = readb(ramBase + NETWAVE_EREG_TSER); |
| 1449 | DEBUG(3, "Transmit done. TSER = %x id %x\n", |
| 1450 | txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1)); |
| 1451 | |
| 1452 | if (txStatus & 0x20) { |
| 1453 | /* Transmitting was okay, clear bits */ |
| 1454 | wait_WOC(iobase); |
| 1455 | writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4); |
| 1456 | ++priv->stats.tx_packets; |
| 1457 | } |
| 1458 | |
| 1459 | if (txStatus & 0xd0) { |
| 1460 | if (txStatus & 0x80) { |
| 1461 | ++priv->stats.collisions; /* Because of /proc/net/dev*/ |
| 1462 | /* ++priv->stats.tx_aborted_errors; */ |
| 1463 | /* printk("Collision. %ld\n", jiffies - dev->trans_start); */ |
| 1464 | } |
| 1465 | if (txStatus & 0x40) |
| 1466 | ++priv->stats.tx_carrier_errors; |
| 1467 | /* 0x80 TxGU Transmit giveup - nine times and no luck |
| 1468 | * 0x40 TxNOAP No access point. Discarded packet. |
| 1469 | * 0x10 TxErr Transmit error. Always set when |
| 1470 | * TxGU and TxNOAP is set. (Those are the only ones |
| 1471 | * to set TxErr). |
| 1472 | */ |
| 1473 | DEBUG(3, "netwave_interrupt: TxDN with error status %x\n", |
| 1474 | txStatus); |
| 1475 | |
| 1476 | /* Clear out TxGU, TxNOAP, TxErr and TxTrys */ |
| 1477 | wait_WOC(iobase); |
| 1478 | writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4); |
| 1479 | ++priv->stats.tx_errors; |
| 1480 | } |
| 1481 | DEBUG(3, "New status is TSER %x ASR %x\n", |
| 1482 | readb(ramBase + NETWAVE_EREG_TSER), |
| 1483 | inb(iobase + NETWAVE_REG_ASR)); |
| 1484 | |
| 1485 | netif_wake_queue(dev); |
| 1486 | } |
| 1487 | /* TxBA, this would trigger on all error packets received */ |
| 1488 | /* if (status & 0x01) { |
| 1489 | DEBUG(4, "Transmit buffers available, %x\n", status); |
| 1490 | } |
| 1491 | */ |
| 1492 | } |
| 1493 | /* Handled if we looped at least one time - Jean II */ |
| 1494 | return IRQ_RETVAL(i); |
| 1495 | } /* netwave_interrupt */ |
| 1496 | |
| 1497 | /* |
| 1498 | * Function netwave_watchdog (a) |
| 1499 | * |
| 1500 | * Watchdog : when we start a transmission, we set a timer in the |
| 1501 | * kernel. If the transmission complete, this timer is disabled. If |
| 1502 | * it expire, we reset the card. |
| 1503 | * |
| 1504 | */ |
| 1505 | static void netwave_watchdog(struct net_device *dev) { |
| 1506 | |
| 1507 | DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name); |
| 1508 | netwave_reset(dev); |
| 1509 | dev->trans_start = jiffies; |
| 1510 | netif_wake_queue(dev); |
| 1511 | } /* netwave_watchdog */ |
| 1512 | |
| 1513 | static struct net_device_stats *netwave_get_stats(struct net_device *dev) { |
| 1514 | netwave_private *priv = netdev_priv(dev); |
| 1515 | |
| 1516 | update_stats(dev); |
| 1517 | |
| 1518 | DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x" |
| 1519 | " %x tx %x %x %x %x\n", |
| 1520 | readb(priv->ramBase + NETWAVE_EREG_SPCQ), |
| 1521 | readb(priv->ramBase + NETWAVE_EREG_SPU), |
| 1522 | readb(priv->ramBase + NETWAVE_EREG_LIF), |
| 1523 | readb(priv->ramBase + NETWAVE_EREG_ISPLQ), |
| 1524 | readb(priv->ramBase + NETWAVE_EREG_MHS), |
| 1525 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xe), |
| 1526 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xf), |
| 1527 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x18), |
| 1528 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x19), |
| 1529 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a), |
| 1530 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b)); |
| 1531 | |
| 1532 | return &priv->stats; |
| 1533 | } |
| 1534 | |
| 1535 | static void update_stats(struct net_device *dev) { |
| 1536 | //unsigned long flags; |
| 1537 | /* netwave_private *priv = netdev_priv(dev); */ |
| 1538 | |
| 1539 | //spin_lock_irqsave(&priv->spinlock, flags); |
| 1540 | |
| 1541 | /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e); |
| 1542 | priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */ |
| 1543 | |
| 1544 | //spin_unlock_irqrestore(&priv->spinlock, flags); |
| 1545 | } |
| 1546 | |
| 1547 | static int netwave_rx(struct net_device *dev) |
| 1548 | { |
| 1549 | netwave_private *priv = netdev_priv(dev); |
| 1550 | u_char __iomem *ramBase = priv->ramBase; |
| 1551 | kio_addr_t iobase = dev->base_addr; |
| 1552 | u_char rxStatus; |
| 1553 | struct sk_buff *skb = NULL; |
| 1554 | unsigned int curBuffer, |
| 1555 | rcvList; |
| 1556 | int rcvLen; |
| 1557 | int tmpcount = 0; |
| 1558 | int dataCount, dataOffset; |
| 1559 | int i; |
| 1560 | u_char *ptr; |
| 1561 | |
| 1562 | DEBUG(3, "xinw_rx: Receiving ... \n"); |
| 1563 | |
| 1564 | /* Receive max 10 packets for now. */ |
| 1565 | for (i = 0; i < 10; i++) { |
| 1566 | /* Any packets? */ |
| 1567 | wait_WOC(iobase); |
| 1568 | rxStatus = readb(ramBase + NETWAVE_EREG_RSER); |
| 1569 | if ( !( rxStatus & 0x80)) /* No more packets */ |
| 1570 | break; |
| 1571 | |
| 1572 | /* Check if multicast/broadcast or other */ |
| 1573 | /* multicast = (rxStatus & 0x20); */ |
| 1574 | |
| 1575 | /* The receive list pointer and length of the packet */ |
| 1576 | wait_WOC(iobase); |
| 1577 | rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP); |
| 1578 | rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2); |
| 1579 | |
| 1580 | if (rcvLen < 0) { |
| 1581 | printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n", |
| 1582 | rcvLen); |
| 1583 | return 0; |
| 1584 | } |
| 1585 | |
| 1586 | skb = dev_alloc_skb(rcvLen+5); |
| 1587 | if (skb == NULL) { |
| 1588 | DEBUG(1, "netwave_rx: Could not allocate an sk_buff of " |
| 1589 | "length %d\n", rcvLen); |
| 1590 | ++priv->stats.rx_dropped; |
| 1591 | /* Tell the adapter to skip the packet */ |
| 1592 | wait_WOC(iobase); |
| 1593 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); |
| 1594 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1595 | return 0; |
| 1596 | } |
| 1597 | |
| 1598 | skb_reserve( skb, 2); /* Align IP on 16 byte */ |
| 1599 | skb_put( skb, rcvLen); |
| 1600 | skb->dev = dev; |
| 1601 | |
| 1602 | /* Copy packet fragments to the skb data area */ |
| 1603 | ptr = (u_char*) skb->data; |
| 1604 | curBuffer = rcvList; |
| 1605 | tmpcount = 0; |
| 1606 | while ( tmpcount < rcvLen) { |
| 1607 | /* Get length and offset of current buffer */ |
| 1608 | dataCount = get_uint16( ramBase+curBuffer+2); |
| 1609 | dataOffset = get_uint16( ramBase+curBuffer+4); |
| 1610 | |
| 1611 | copy_from_pc( ptr + tmpcount, |
| 1612 | ramBase+curBuffer+dataOffset, dataCount); |
| 1613 | |
| 1614 | tmpcount += dataCount; |
| 1615 | |
| 1616 | /* Point to next buffer */ |
| 1617 | curBuffer = get_uint16(ramBase + curBuffer); |
| 1618 | } |
| 1619 | |
| 1620 | skb->protocol = eth_type_trans(skb,dev); |
| 1621 | /* Queue packet for network layer */ |
| 1622 | netif_rx(skb); |
| 1623 | |
| 1624 | dev->last_rx = jiffies; |
| 1625 | priv->stats.rx_packets++; |
| 1626 | priv->stats.rx_bytes += rcvLen; |
| 1627 | |
| 1628 | /* Got the packet, tell the adapter to skip it */ |
| 1629 | wait_WOC(iobase); |
| 1630 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); |
| 1631 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); |
| 1632 | DEBUG(3, "Packet reception ok\n"); |
| 1633 | } |
| 1634 | return 0; |
| 1635 | } |
| 1636 | |
| 1637 | static int netwave_open(struct net_device *dev) { |
| 1638 | netwave_private *priv = netdev_priv(dev); |
| 1639 | dev_link_t *link = &priv->link; |
| 1640 | |
| 1641 | DEBUG(1, "netwave_open: starting.\n"); |
| 1642 | |
| 1643 | if (!DEV_OK(link)) |
| 1644 | return -ENODEV; |
| 1645 | |
| 1646 | link->open++; |
| 1647 | |
| 1648 | netif_start_queue(dev); |
| 1649 | netwave_reset(dev); |
| 1650 | |
| 1651 | return 0; |
| 1652 | } |
| 1653 | |
| 1654 | static int netwave_close(struct net_device *dev) { |
| 1655 | netwave_private *priv = netdev_priv(dev); |
| 1656 | dev_link_t *link = &priv->link; |
| 1657 | |
| 1658 | DEBUG(1, "netwave_close: finishing.\n"); |
| 1659 | |
| 1660 | link->open--; |
| 1661 | netif_stop_queue(dev); |
| 1662 | |
| 1663 | return 0; |
| 1664 | } |
| 1665 | |
Dominik Brodowski | 5d402e9 | 2005-06-27 16:28:23 -0700 | [diff] [blame] | 1666 | static struct pcmcia_device_id netwave_ids[] = { |
| 1667 | PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28), |
| 1668 | PCMCIA_DEVICE_NULL, |
| 1669 | }; |
| 1670 | MODULE_DEVICE_TABLE(pcmcia, netwave_ids); |
| 1671 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | static struct pcmcia_driver netwave_driver = { |
| 1673 | .owner = THIS_MODULE, |
| 1674 | .drv = { |
| 1675 | .name = "netwave_cs", |
| 1676 | }, |
| 1677 | .attach = netwave_attach, |
Dominik Brodowski | 1e212f3 | 2005-07-07 17:59:00 -0700 | [diff] [blame^] | 1678 | .event = netwave_event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | .detach = netwave_detach, |
Dominik Brodowski | 5d402e9 | 2005-06-27 16:28:23 -0700 | [diff] [blame] | 1680 | .id_table = netwave_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | }; |
| 1682 | |
| 1683 | static int __init init_netwave_cs(void) |
| 1684 | { |
| 1685 | return pcmcia_register_driver(&netwave_driver); |
| 1686 | } |
| 1687 | |
| 1688 | static void __exit exit_netwave_cs(void) |
| 1689 | { |
| 1690 | pcmcia_unregister_driver(&netwave_driver); |
| 1691 | BUG_ON(dev_list != NULL); |
| 1692 | } |
| 1693 | |
| 1694 | module_init(init_netwave_cs); |
| 1695 | module_exit(exit_netwave_cs); |
| 1696 | |
| 1697 | /* Set or clear the multicast filter for this adaptor. |
| 1698 | num_addrs == -1 Promiscuous mode, receive all packets |
| 1699 | num_addrs == 0 Normal mode, clear multicast list |
| 1700 | num_addrs > 0 Multicast mode, receive normal and MC packets, and do |
| 1701 | best-effort filtering. |
| 1702 | */ |
| 1703 | static void set_multicast_list(struct net_device *dev) |
| 1704 | { |
| 1705 | kio_addr_t iobase = dev->base_addr; |
| 1706 | netwave_private *priv = netdev_priv(dev); |
| 1707 | u_char __iomem * ramBase = priv->ramBase; |
| 1708 | u_char rcvMode = 0; |
| 1709 | |
| 1710 | #ifdef PCMCIA_DEBUG |
| 1711 | if (pc_debug > 2) { |
| 1712 | static int old; |
| 1713 | if (old != dev->mc_count) { |
| 1714 | old = dev->mc_count; |
| 1715 | DEBUG(0, "%s: setting Rx mode to %d addresses.\n", |
| 1716 | dev->name, dev->mc_count); |
| 1717 | } |
| 1718 | } |
| 1719 | #endif |
| 1720 | |
| 1721 | if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { |
| 1722 | /* Multicast Mode */ |
| 1723 | rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast; |
| 1724 | } else if (dev->flags & IFF_PROMISC) { |
| 1725 | /* Promiscous mode */ |
| 1726 | rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast; |
| 1727 | } else { |
| 1728 | /* Normal mode */ |
| 1729 | rcvMode = rxConfRxEna + rxConfBcast; |
| 1730 | } |
| 1731 | |
| 1732 | /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/ |
| 1733 | /* Now set receive mode */ |
| 1734 | wait_WOC(iobase); |
| 1735 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); |
| 1736 | writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1); |
| 1737 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); |
| 1738 | } |
| 1739 | MODULE_LICENSE("GPL"); |