1/*============================================================================= 2 * 3 * A PCMCIA client driver for the Raylink wireless LAN card. 4 * The starting point for this module was the skeleton.c in the 5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net 6 * 7 * 8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com) 9 * 10 * This driver is free software; you can redistribute it and/or modify 11 * it under the terms of version 2 only of the GNU General Public License as 12 * published by the Free Software Foundation. 13 * 14 * It is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 22 * 23 * Changes: 24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000 25 * - reorganize kmallocs in ray_attach, checking all for failure 26 * and releasing the previous allocations if one fails 27 * 28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003 29 * - Audit copy_to_user in ioctl(SIOCGIWESSID) 30 * 31=============================================================================*/ 32 33#include <linux/module.h> 34#include <linux/kernel.h> 35#include <linux/proc_fs.h> 36#include <linux/ptrace.h> 37#include <linux/seq_file.h> 38#include <linux/string.h> 39#include <linux/timer.h> 40#include <linux/init.h> 41#include <linux/netdevice.h> 42#include <linux/etherdevice.h> 43#include <linux/if_arp.h> 44#include <linux/ioport.h> 45#include <linux/skbuff.h> 46#include <linux/ethtool.h> 47#include <linux/ieee80211.h> 48 49#include <pcmcia/cs.h> 50#include <pcmcia/cistpl.h> 51#include <pcmcia/cisreg.h> 52#include <pcmcia/ds.h> 53 54#include <linux/wireless.h> 55#include <net/iw_handler.h> 56 57#include <asm/io.h> 58#include <asm/system.h> 59#include <asm/byteorder.h> 60#include <asm/uaccess.h> 61 62/* Warning : these stuff will slow down the driver... */ 63#define WIRELESS_SPY /* Enable spying addresses */ 64/* Definitions we need for spy */ 65typedef struct iw_statistics iw_stats; 66typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */ 67 68#include "rayctl.h" 69#include "ray_cs.h" 70 71 72/** Prototypes based on PCMCIA skeleton driver *******************************/ 73static int ray_config(struct pcmcia_device *link); 74static void ray_release(struct pcmcia_device *link); 75static void ray_detach(struct pcmcia_device *p_dev); 76 77/***** Prototypes indicated by device structure ******************************/ 78static int ray_dev_close(struct net_device *dev); 79static int ray_dev_config(struct net_device *dev, struct ifmap *map); 80static struct net_device_stats *ray_get_stats(struct net_device *dev); 81static int ray_dev_init(struct net_device *dev); 82 83static const struct ethtool_ops netdev_ethtool_ops; 84 85static int ray_open(struct net_device *dev); 86static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 87 struct net_device *dev); 88static void set_multicast_list(struct net_device *dev); 89static void ray_update_multi_list(struct net_device *dev, int all); 90static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 91 unsigned char *data, int len); 92static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 93 UCHAR msg_type, unsigned char *data); 94static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len); 95static iw_stats *ray_get_wireless_stats(struct net_device *dev); 96static const struct iw_handler_def ray_handler_def; 97 98/***** Prototypes for raylink functions **************************************/ 99static void authenticate(ray_dev_t *local); 100static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type); 101static void authenticate_timeout(u_long); 102static int get_free_ccs(ray_dev_t *local); 103static int get_free_tx_ccs(ray_dev_t *local); 104static void init_startup_params(ray_dev_t *local); 105static int parse_addr(char *in_str, UCHAR *out); 106static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type); 107static int ray_init(struct net_device *dev); 108static int interrupt_ecf(ray_dev_t *local, int ccs); 109static void ray_reset(struct net_device *dev); 110static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len); 111static void verify_dl_startup(u_long); 112 113/* Prototypes for interrpt time functions **********************************/ 114static irqreturn_t ray_interrupt(int reg, void *dev_id); 115static void clear_interrupt(ray_dev_t *local); 116static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 117 unsigned int pkt_addr, int rx_len); 118static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len); 119static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs); 120static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs); 121static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 122 unsigned int pkt_addr, int rx_len); 123static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 124 unsigned int pkt_addr, int rx_len); 125static void associate(ray_dev_t *local); 126 127/* Card command functions */ 128static int dl_startup_params(struct net_device *dev); 129static void join_net(u_long local); 130static void start_net(u_long local); 131/* void start_net(ray_dev_t *local); */ 132 133/*===========================================================================*/ 134/* Parameters that can be set with 'insmod' */ 135 136/* ADHOC=0, Infrastructure=1 */ 137static int net_type = ADHOC; 138 139/* Hop dwell time in Kus (1024 us units defined by 802.11) */ 140static int hop_dwell = 128; 141 142/* Beacon period in Kus */ 143static int beacon_period = 256; 144 145/* power save mode (0 = off, 1 = save power) */ 146static int psm; 147 148/* String for network's Extended Service Set ID. 32 Characters max */ 149static char *essid; 150 151/* Default to encapsulation unless translation requested */ 152static int translate = 1; 153 154static int country = USA; 155 156static int sniffer; 157 158static int bc; 159 160/* 48 bit physical card address if overriding card's real physical 161 * address is required. Since IEEE 802.11 addresses are 48 bits 162 * like ethernet, an int can't be used, so a string is used. To 163 * allow use of addresses starting with a decimal digit, the first 164 * character must be a letter and will be ignored. This letter is 165 * followed by up to 12 hex digits which are the address. If less 166 * than 12 digits are used, the address will be left filled with 0's. 167 * Note that bit 0 of the first byte is the broadcast bit, and evil 168 * things will happen if it is not 0 in a card address. 169 */ 170static char *phy_addr = NULL; 171 172 173/* A struct pcmcia_device structure has fields for most things that are needed 174 to keep track of a socket, but there will usually be some device 175 specific information that also needs to be kept track of. The 176 'priv' pointer in a struct pcmcia_device structure can be used to point to 177 a device-specific private data structure, like this. 178*/ 179static unsigned int ray_mem_speed = 500; 180 181/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ 182static struct pcmcia_device *this_device = NULL; 183 184MODULE_AUTHOR("Corey Thomas <corey@world.std.com>"); 185MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver"); 186MODULE_LICENSE("GPL"); 187 188module_param(net_type, int, 0); 189module_param(hop_dwell, int, 0); 190module_param(beacon_period, int, 0); 191module_param(psm, int, 0); 192module_param(essid, charp, 0); 193module_param(translate, int, 0); 194module_param(country, int, 0); 195module_param(sniffer, int, 0); 196module_param(bc, int, 0); 197module_param(phy_addr, charp, 0); 198module_param(ray_mem_speed, int, 0); 199 200static UCHAR b5_default_startup_parms[] = { 201 0, 0, /* Adhoc station */ 202 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 203 0, 0, 0, 0, 0, 0, 0, 0, 204 0, 0, 0, 0, 0, 0, 0, 0, 205 0, 0, 0, 0, 0, 0, 0, 0, 206 1, 0, /* Active scan, CA Mode */ 207 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 208 0x7f, 0xff, /* Frag threshold */ 209 0x00, 0x80, /* Hop time 128 Kus */ 210 0x01, 0x00, /* Beacon period 256 Kus */ 211 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 212 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */ 213 0x7f, 0xff, /* RTS threshold */ 214 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */ 215 0x05, /* assoc resp timeout thresh */ 216 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */ 217 0, /* Promiscuous mode */ 218 0x0c, 0x0bd, /* Unique word */ 219 0x32, /* Slot time */ 220 0xff, 0xff, /* roam-low snr, low snr count */ 221 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 222 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */ 223/* b4 - b5 differences start here */ 224 0x00, 0x3f, /* CW max */ 225 0x00, 0x0f, /* CW min */ 226 0x04, 0x08, /* Noise gain, limit offset */ 227 0x28, 0x28, /* det rssi, med busy offsets */ 228 7, /* det sync thresh */ 229 0, 2, 2, /* test mode, min, max */ 230 0, /* allow broadcast SSID probe resp */ 231 0, 0, /* privacy must start, can join */ 232 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */ 233}; 234 235static UCHAR b4_default_startup_parms[] = { 236 0, 0, /* Adhoc station */ 237 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 238 0, 0, 0, 0, 0, 0, 0, 0, 239 0, 0, 0, 0, 0, 0, 0, 0, 240 0, 0, 0, 0, 0, 0, 0, 0, 241 1, 0, /* Active scan, CA Mode */ 242 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 243 0x7f, 0xff, /* Frag threshold */ 244 0x02, 0x00, /* Hop time */ 245 0x00, 0x01, /* Beacon period */ 246 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 247 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */ 248 0x7f, 0xff, /* RTS threshold */ 249 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */ 250 0x05, /* assoc resp timeout thresh */ 251 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */ 252 0, /* Promiscuous mode */ 253 0x0c, 0x0bd, /* Unique word */ 254 0x4e, /* Slot time (TBD seems wrong) */ 255 0xff, 0xff, /* roam-low snr, low snr count */ 256 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 257 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */ 258/* b4 - b5 differences start here */ 259 0x3f, 0x0f, /* CW max, min */ 260 0x04, 0x08, /* Noise gain, limit offset */ 261 0x28, 0x28, /* det rssi, med busy offsets */ 262 7, /* det sync thresh */ 263 0, 2, 2 /* test mode, min, max */ 264}; 265 266/*===========================================================================*/ 267static unsigned char eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; 268 269static char hop_pattern_length[] = { 1, 270 USA_HOP_MOD, EUROPE_HOP_MOD, 271 JAPAN_HOP_MOD, KOREA_HOP_MOD, 272 SPAIN_HOP_MOD, FRANCE_HOP_MOD, 273 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD, 274 JAPAN_TEST_HOP_MOD 275}; 276 277static char rcsid[] = 278 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; 279 280static const struct net_device_ops ray_netdev_ops = { 281 .ndo_init = ray_dev_init, 282 .ndo_open = ray_open, 283 .ndo_stop = ray_dev_close, 284 .ndo_start_xmit = ray_dev_start_xmit, 285 .ndo_set_config = ray_dev_config, 286 .ndo_get_stats = ray_get_stats, 287 .ndo_set_multicast_list = set_multicast_list, 288 .ndo_change_mtu = eth_change_mtu, 289 .ndo_set_mac_address = eth_mac_addr, 290 .ndo_validate_addr = eth_validate_addr, 291}; 292 293/*============================================================================= 294 ray_attach() creates an "instance" of the driver, allocating 295 local data structures for one device. The device is registered 296 with Card Services. 297 The dev_link structure is initialized, but we don't actually 298 configure the card at this point -- we wait until we receive a 299 card insertion event. 300=============================================================================*/ 301static int ray_probe(struct pcmcia_device *p_dev) 302{ 303 ray_dev_t *local; 304 struct net_device *dev; 305 306 dev_dbg(&p_dev->dev, "ray_attach()\n"); 307 308 /* Allocate space for private device-specific data */ 309 dev = alloc_etherdev(sizeof(ray_dev_t)); 310 if (!dev) 311 goto fail_alloc_dev; 312 313 local = netdev_priv(dev); 314 local->finder = p_dev; 315 316 /* The io structure describes IO port mapping. None used here */ 317 p_dev->resource[0]->end = 0; 318 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 319 320 /* General socket configuration */ 321 p_dev->conf.Attributes = CONF_ENABLE_IRQ; 322 p_dev->conf.IntType = INT_MEMORY_AND_IO; 323 p_dev->conf.ConfigIndex = 1; 324 325 p_dev->priv = dev; 326 327 local->finder = p_dev; 328 local->card_status = CARD_INSERTED; 329 local->authentication_state = UNAUTHENTICATED; 330 local->num_multi = 0; 331 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 332 p_dev, dev, local, &ray_interrupt); 333 334 /* Raylink entries in the device structure */ 335 dev->netdev_ops = &ray_netdev_ops; 336 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); 337 dev->wireless_handlers = &ray_handler_def; 338#ifdef WIRELESS_SPY 339 local->wireless_data.spy_data = &local->spy_data; 340 dev->wireless_data = &local->wireless_data; 341#endif /* WIRELESS_SPY */ 342 343 344 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 345 netif_stop_queue(dev); 346 347 init_timer(&local->timer); 348 349 this_device = p_dev; 350 return ray_config(p_dev); 351 352fail_alloc_dev: 353 return -ENOMEM; 354} /* ray_attach */ 355 356/*============================================================================= 357 This deletes a driver "instance". The device is de-registered 358 with Card Services. If it has been released, all local data 359 structures are freed. Otherwise, the structures will be freed 360 when the device is released. 361=============================================================================*/ 362static void ray_detach(struct pcmcia_device *link) 363{ 364 struct net_device *dev; 365 ray_dev_t *local; 366 367 dev_dbg(&link->dev, "ray_detach\n"); 368 369 this_device = NULL; 370 dev = link->priv; 371 372 ray_release(link); 373 374 local = netdev_priv(dev); 375 del_timer(&local->timer); 376 377 if (link->priv) { 378 unregister_netdev(dev); 379 free_netdev(dev); 380 } 381 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 382} /* ray_detach */ 383 384/*============================================================================= 385 ray_config() is run after a CARD_INSERTION event 386 is received, to configure the PCMCIA socket, and to make the 387 ethernet device available to the system. 388=============================================================================*/ 389#define MAX_TUPLE_SIZE 128 390static int ray_config(struct pcmcia_device *link) 391{ 392 int ret = 0; 393 int i; 394 win_req_t req; 395 struct net_device *dev = (struct net_device *)link->priv; 396 ray_dev_t *local = netdev_priv(dev); 397 398 dev_dbg(&link->dev, "ray_config\n"); 399 400 /* Determine card type and firmware version */ 401 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 402 link->prod_id[0] ? link->prod_id[0] : " ", 403 link->prod_id[1] ? link->prod_id[1] : " ", 404 link->prod_id[2] ? link->prod_id[2] : " ", 405 link->prod_id[3] ? link->prod_id[3] : " "); 406 407 /* Now allocate an interrupt line. Note that this does not 408 actually assign a handler to the interrupt. 409 */ 410 ret = pcmcia_request_irq(link, ray_interrupt); 411 if (ret) 412 goto failed; 413 dev->irq = link->irq; 414 415 /* This actually configures the PCMCIA socket -- setting up 416 the I/O windows and the interrupt mapping. 417 */ 418 ret = pcmcia_request_configuration(link, &link->conf); 419 if (ret) 420 goto failed; 421 422/*** Set up 32k window for shared memory (transmit and control) ************/ 423 req.Attributes = 424 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 425 req.Base = 0; 426 req.Size = 0x8000; 427 req.AccessSpeed = ray_mem_speed; 428 ret = pcmcia_request_window(link, &req, &link->win); 429 if (ret) 430 goto failed; 431 ret = pcmcia_map_mem_page(link, link->win, 0); 432 if (ret) 433 goto failed; 434 local->sram = ioremap(req.Base, req.Size); 435 436/*** Set up 16k window for shared memory (receive buffer) ***************/ 437 req.Attributes = 438 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 439 req.Base = 0; 440 req.Size = 0x4000; 441 req.AccessSpeed = ray_mem_speed; 442 ret = pcmcia_request_window(link, &req, &local->rmem_handle); 443 if (ret) 444 goto failed; 445 ret = pcmcia_map_mem_page(link, local->rmem_handle, 0x8000); 446 if (ret) 447 goto failed; 448 local->rmem = ioremap(req.Base, req.Size); 449 450/*** Set up window for attribute memory ***********************************/ 451 req.Attributes = 452 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 453 req.Base = 0; 454 req.Size = 0x1000; 455 req.AccessSpeed = ray_mem_speed; 456 ret = pcmcia_request_window(link, &req, &local->amem_handle); 457 if (ret) 458 goto failed; 459 ret = pcmcia_map_mem_page(link, local->amem_handle, 0); 460 if (ret) 461 goto failed; 462 local->amem = ioremap(req.Base, req.Size); 463 464 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 465 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 466 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 467 if (ray_init(dev) < 0) { 468 ray_release(link); 469 return -ENODEV; 470 } 471 472 SET_NETDEV_DEV(dev, &link->dev); 473 i = register_netdev(dev); 474 if (i != 0) { 475 printk("ray_config register_netdev() failed\n"); 476 ray_release(link); 477 return i; 478 } 479 480 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 481 dev->name, dev->irq, dev->dev_addr); 482 483 return 0; 484 485failed: 486 ray_release(link); 487 return -ENODEV; 488} /* ray_config */ 489 490static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 491{ 492 return dev->sram + CCS_BASE; 493} 494 495static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 496{ 497 /* 498 * This looks nonsensical, since there is a separate 499 * RCS_BASE. But the difference between a "struct rcs" 500 * and a "struct ccs" ends up being in the _index_ off 501 * the base, so the base pointer is the same for both 502 * ccs/rcs. 503 */ 504 return dev->sram + CCS_BASE; 505} 506 507/*===========================================================================*/ 508static int ray_init(struct net_device *dev) 509{ 510 int i; 511 UCHAR *p; 512 struct ccs __iomem *pccs; 513 ray_dev_t *local = netdev_priv(dev); 514 struct pcmcia_device *link = local->finder; 515 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); 516 if (!(pcmcia_dev_present(link))) { 517 dev_dbg(&link->dev, "ray_init - device not present\n"); 518 return -1; 519 } 520 521 local->net_type = net_type; 522 local->sta_type = TYPE_STA; 523 524 /* Copy the startup results to local memory */ 525 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE, 526 sizeof(struct startup_res_6)); 527 528 /* Check Power up test status and get mac address from card */ 529 if (local->startup_res.startup_word != 0x80) { 530 printk(KERN_INFO "ray_init ERROR card status = %2x\n", 531 local->startup_res.startup_word); 532 local->card_status = CARD_INIT_ERROR; 533 return -1; 534 } 535 536 local->fw_ver = local->startup_res.firmware_version[0]; 537 local->fw_bld = local->startup_res.firmware_version[1]; 538 local->fw_var = local->startup_res.firmware_version[2]; 539 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver, 540 local->fw_bld); 541 542 local->tib_length = 0x20; 543 if ((local->fw_ver == 5) && (local->fw_bld >= 30)) 544 local->tib_length = local->startup_res.tib_length; 545 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length); 546 /* Initialize CCS's to buffer free state */ 547 pccs = ccs_base(local); 548 for (i = 0; i < NUMBER_OF_CCS; i++) { 549 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 550 } 551 init_startup_params(local); 552 553 /* copy mac address to startup parameters */ 554 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) { 555 p = local->sparm.b4.a_mac_addr; 556 } else { 557 memcpy(&local->sparm.b4.a_mac_addr, 558 &local->startup_res.station_addr, ADDRLEN); 559 p = local->sparm.b4.a_mac_addr; 560 } 561 562 clear_interrupt(local); /* Clear any interrupt from the card */ 563 local->card_status = CARD_AWAITING_PARAM; 564 dev_dbg(&link->dev, "ray_init ending\n"); 565 return 0; 566} /* ray_init */ 567 568/*===========================================================================*/ 569/* Download startup parameters to the card and command it to read them */ 570static int dl_startup_params(struct net_device *dev) 571{ 572 int ccsindex; 573 ray_dev_t *local = netdev_priv(dev); 574 struct ccs __iomem *pccs; 575 struct pcmcia_device *link = local->finder; 576 577 dev_dbg(&link->dev, "dl_startup_params entered\n"); 578 if (!(pcmcia_dev_present(link))) { 579 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 580 return -1; 581 } 582 583 /* Copy parameters to host to ECF area */ 584 if (local->fw_ver == 0x55) 585 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 586 sizeof(struct b4_startup_params)); 587 else 588 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 589 sizeof(struct b5_startup_params)); 590 591 /* Fill in the CCS fields for the ECF */ 592 if ((ccsindex = get_free_ccs(local)) < 0) 593 return -1; 594 local->dl_param_ccs = ccsindex; 595 pccs = ccs_base(local) + ccsindex; 596 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 597 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 598 local->dl_param_ccs); 599 /* Interrupt the firmware to process the command */ 600 if (interrupt_ecf(local, ccsindex)) { 601 printk(KERN_INFO "ray dl_startup_params failed - " 602 "ECF not ready for intr\n"); 603 local->card_status = CARD_DL_PARAM_ERROR; 604 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 605 return -2; 606 } 607 local->card_status = CARD_DL_PARAM; 608 /* Start kernel timer to wait for dl startup to complete. */ 609 local->timer.expires = jiffies + HZ / 2; 610 local->timer.data = (long)local; 611 local->timer.function = &verify_dl_startup; 612 add_timer(&local->timer); 613 dev_dbg(&link->dev, 614 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 615 return 0; 616} /* dl_startup_params */ 617 618/*===========================================================================*/ 619static void init_startup_params(ray_dev_t *local) 620{ 621 int i; 622 623 if (country > JAPAN_TEST) 624 country = USA; 625 else if (country < USA) 626 country = USA; 627 /* structure for hop time and beacon period is defined here using 628 * New 802.11D6.1 format. Card firmware is still using old format 629 * until version 6. 630 * Before After 631 * a_hop_time ms byte a_hop_time ms byte 632 * a_hop_time 2s byte a_hop_time ls byte 633 * a_hop_time ls byte a_beacon_period ms byte 634 * a_beacon_period a_beacon_period ls byte 635 * 636 * a_hop_time = uS a_hop_time = KuS 637 * a_beacon_period = hops a_beacon_period = KuS 638 *//* 64ms = 010000 */ 639 if (local->fw_ver == 0x55) { 640 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms, 641 sizeof(struct b4_startup_params)); 642 /* Translate sane kus input values to old build 4/5 format */ 643 /* i = hop time in uS truncated to 3 bytes */ 644 i = (hop_dwell * 1024) & 0xffffff; 645 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 646 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 647 local->sparm.b4.a_beacon_period[0] = 0; 648 local->sparm.b4.a_beacon_period[1] = 649 ((beacon_period / hop_dwell) - 1) & 0xff; 650 local->sparm.b4.a_curr_country_code = country; 651 local->sparm.b4.a_hop_pattern_length = 652 hop_pattern_length[(int)country] - 1; 653 if (bc) { 654 local->sparm.b4.a_ack_timeout = 0x50; 655 local->sparm.b4.a_sifs = 0x3f; 656 } 657 } else { /* Version 5 uses real kus values */ 658 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 659 sizeof(struct b5_startup_params)); 660 661 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 662 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 663 local->sparm.b5.a_beacon_period[0] = 664 (beacon_period >> 8) & 0xff; 665 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 666 if (psm) 667 local->sparm.b5.a_power_mgt_state = 1; 668 local->sparm.b5.a_curr_country_code = country; 669 local->sparm.b5.a_hop_pattern_length = 670 hop_pattern_length[(int)country]; 671 } 672 673 local->sparm.b4.a_network_type = net_type & 0x01; 674 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 675 676 if (essid != NULL) 677 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 678} /* init_startup_params */ 679 680/*===========================================================================*/ 681static void verify_dl_startup(u_long data) 682{ 683 ray_dev_t *local = (ray_dev_t *) data; 684 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 685 UCHAR status; 686 struct pcmcia_device *link = local->finder; 687 688 if (!(pcmcia_dev_present(link))) { 689 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 690 return; 691 } 692 693 status = readb(&pccs->buffer_status); 694 if (status != CCS_BUFFER_FREE) { 695 printk(KERN_INFO 696 "Download startup params failed. Status = %d\n", 697 status); 698 local->card_status = CARD_DL_PARAM_ERROR; 699 return; 700 } 701 if (local->sparm.b4.a_network_type == ADHOC) 702 start_net((u_long) local); 703 else 704 join_net((u_long) local); 705} /* end verify_dl_startup */ 706 707/*===========================================================================*/ 708/* Command card to start a network */ 709static void start_net(u_long data) 710{ 711 ray_dev_t *local = (ray_dev_t *) data; 712 struct ccs __iomem *pccs; 713 int ccsindex; 714 struct pcmcia_device *link = local->finder; 715 if (!(pcmcia_dev_present(link))) { 716 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 717 return; 718 } 719 /* Fill in the CCS fields for the ECF */ 720 if ((ccsindex = get_free_ccs(local)) < 0) 721 return; 722 pccs = ccs_base(local) + ccsindex; 723 writeb(CCS_START_NETWORK, &pccs->cmd); 724 writeb(0, &pccs->var.start_network.update_param); 725 /* Interrupt the firmware to process the command */ 726 if (interrupt_ecf(local, ccsindex)) { 727 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 728 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 729 return; 730 } 731 local->card_status = CARD_DOING_ACQ; 732} /* end start_net */ 733 734/*===========================================================================*/ 735/* Command card to join a network */ 736static void join_net(u_long data) 737{ 738 ray_dev_t *local = (ray_dev_t *) data; 739 740 struct ccs __iomem *pccs; 741 int ccsindex; 742 struct pcmcia_device *link = local->finder; 743 744 if (!(pcmcia_dev_present(link))) { 745 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 746 return; 747 } 748 /* Fill in the CCS fields for the ECF */ 749 if ((ccsindex = get_free_ccs(local)) < 0) 750 return; 751 pccs = ccs_base(local) + ccsindex; 752 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 753 writeb(0, &pccs->var.join_network.update_param); 754 writeb(0, &pccs->var.join_network.net_initiated); 755 /* Interrupt the firmware to process the command */ 756 if (interrupt_ecf(local, ccsindex)) { 757 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 758 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 759 return; 760 } 761 local->card_status = CARD_DOING_ACQ; 762} 763 764/*============================================================================ 765 After a card is removed, ray_release() will unregister the net 766 device, and release the PCMCIA configuration. If the device is 767 still open, this will be postponed until it is closed. 768=============================================================================*/ 769static void ray_release(struct pcmcia_device *link) 770{ 771 struct net_device *dev = link->priv; 772 ray_dev_t *local = netdev_priv(dev); 773 774 dev_dbg(&link->dev, "ray_release\n"); 775 776 del_timer(&local->timer); 777 778 iounmap(local->sram); 779 iounmap(local->rmem); 780 iounmap(local->amem); 781 pcmcia_disable_device(link); 782 783 dev_dbg(&link->dev, "ray_release ending\n"); 784} 785 786static int ray_suspend(struct pcmcia_device *link) 787{ 788 struct net_device *dev = link->priv; 789 790 if (link->open) 791 netif_device_detach(dev); 792 793 return 0; 794} 795 796static int ray_resume(struct pcmcia_device *link) 797{ 798 struct net_device *dev = link->priv; 799 800 if (link->open) { 801 ray_reset(dev); 802 netif_device_attach(dev); 803 } 804 805 return 0; 806} 807 808/*===========================================================================*/ 809static int ray_dev_init(struct net_device *dev) 810{ 811#ifdef RAY_IMMEDIATE_INIT 812 int i; 813#endif /* RAY_IMMEDIATE_INIT */ 814 ray_dev_t *local = netdev_priv(dev); 815 struct pcmcia_device *link = local->finder; 816 817 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 818 if (!(pcmcia_dev_present(link))) { 819 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 820 return -1; 821 } 822#ifdef RAY_IMMEDIATE_INIT 823 /* Download startup parameters */ 824 if ((i = dl_startup_params(dev)) < 0) { 825 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 826 "returns 0x%x\n", i); 827 return -1; 828 } 829#else /* RAY_IMMEDIATE_INIT */ 830 /* Postpone the card init so that we can still configure the card, 831 * for example using the Wireless Extensions. The init will happen 832 * in ray_open() - Jean II */ 833 dev_dbg(&link->dev, 834 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 835 local->card_status); 836#endif /* RAY_IMMEDIATE_INIT */ 837 838 /* copy mac and broadcast addresses to linux device */ 839 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN); 840 memset(dev->broadcast, 0xff, ETH_ALEN); 841 842 dev_dbg(&link->dev, "ray_dev_init ending\n"); 843 return 0; 844} 845 846/*===========================================================================*/ 847static int ray_dev_config(struct net_device *dev, struct ifmap *map) 848{ 849 ray_dev_t *local = netdev_priv(dev); 850 struct pcmcia_device *link = local->finder; 851 /* Dummy routine to satisfy device structure */ 852 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 853 if (!(pcmcia_dev_present(link))) { 854 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 855 return -1; 856 } 857 858 return 0; 859} 860 861/*===========================================================================*/ 862static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 863 struct net_device *dev) 864{ 865 ray_dev_t *local = netdev_priv(dev); 866 struct pcmcia_device *link = local->finder; 867 short length = skb->len; 868 869 if (!pcmcia_dev_present(link)) { 870 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 871 dev_kfree_skb(skb); 872 return NETDEV_TX_OK; 873 } 874 875 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 876 if (local->authentication_state == NEED_TO_AUTH) { 877 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 878 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 879 local->authentication_state = AUTHENTICATED; 880 netif_stop_queue(dev); 881 return NETDEV_TX_BUSY; 882 } 883 } 884 885 if (length < ETH_ZLEN) { 886 if (skb_padto(skb, ETH_ZLEN)) 887 return NETDEV_TX_OK; 888 length = ETH_ZLEN; 889 } 890 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 891 case XMIT_NO_CCS: 892 case XMIT_NEED_AUTH: 893 netif_stop_queue(dev); 894 return NETDEV_TX_BUSY; 895 case XMIT_NO_INTR: 896 case XMIT_MSG_BAD: 897 case XMIT_OK: 898 default: 899 dev_kfree_skb(skb); 900 } 901 902 return NETDEV_TX_OK; 903} /* ray_dev_start_xmit */ 904 905/*===========================================================================*/ 906static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 907 UCHAR msg_type) 908{ 909 ray_dev_t *local = netdev_priv(dev); 910 struct ccs __iomem *pccs; 911 int ccsindex; 912 int offset; 913 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 914 short int addr; /* Address of xmit buffer in card space */ 915 916 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 917 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 918 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 919 len); 920 return XMIT_MSG_BAD; 921 } 922 switch (ccsindex = get_free_tx_ccs(local)) { 923 case ECCSBUSY: 924 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 925 case ECCSFULL: 926 pr_debug("ray_hw_xmit No free tx ccs\n"); 927 case ECARDGONE: 928 netif_stop_queue(dev); 929 return XMIT_NO_CCS; 930 default: 931 break; 932 } 933 addr = TX_BUF_BASE + (ccsindex << 11); 934 935 if (msg_type == DATA_TYPE) { 936 local->stats.tx_bytes += len; 937 local->stats.tx_packets++; 938 } 939 940 ptx = local->sram + addr; 941 942 ray_build_header(local, ptx, msg_type, data); 943 if (translate) { 944 offset = translate_frame(local, ptx, data, len); 945 } else { /* Encapsulate frame */ 946 /* TBD TIB length will move address of ptx->var */ 947 memcpy_toio(&ptx->var, data, len); 948 offset = 0; 949 } 950 951 /* fill in the CCS */ 952 pccs = ccs_base(local) + ccsindex; 953 len += TX_HEADER_LENGTH + offset; 954 writeb(CCS_TX_REQUEST, &pccs->cmd); 955 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 956 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 957 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 958 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 959/* TBD still need psm_cam? */ 960 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 961 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 962 writeb(0, &pccs->var.tx_request.antenna); 963 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 964 local->net_default_tx_rate); 965 966 /* Interrupt the firmware to process the command */ 967 if (interrupt_ecf(local, ccsindex)) { 968 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 969/* TBD very inefficient to copy packet to buffer, and then not 970 send it, but the alternative is to queue the messages and that 971 won't be done for a while. Maybe set tbusy until a CCS is free? 972*/ 973 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 974 return XMIT_NO_INTR; 975 } 976 return XMIT_OK; 977} /* end ray_hw_xmit */ 978 979/*===========================================================================*/ 980static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 981 unsigned char *data, int len) 982{ 983 __be16 proto = ((struct ethhdr *)data)->h_proto; 984 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */ 985 pr_debug("ray_cs translate_frame DIX II\n"); 986 /* Copy LLC header to card buffer */ 987 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 988 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 989 (UCHAR *) &proto, 2); 990 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 991 /* This is the selective translation table, only 2 entries */ 992 writeb(0xf8, 993 &((struct snaphdr_t __iomem *)ptx->var)->org[3]); 994 } 995 /* Copy body of ethernet packet without ethernet header */ 996 memcpy_toio((void __iomem *)&ptx->var + 997 sizeof(struct snaphdr_t), data + ETH_HLEN, 998 len - ETH_HLEN); 999 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 1000 } else { /* already 802 type, and proto is length */ 1001 pr_debug("ray_cs translate_frame 802\n"); 1002 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 1003 pr_debug("ray_cs translate_frame evil IPX\n"); 1004 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 1005 return 0 - ETH_HLEN; 1006 } 1007 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 1008 return 0 - ETH_HLEN; 1009 } 1010 /* TBD do other frame types */ 1011} /* end translate_frame */ 1012 1013/*===========================================================================*/ 1014static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 1015 UCHAR msg_type, unsigned char *data) 1016{ 1017 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 1018/*** IEEE 802.11 Address field assignments ************* 1019 TODS FROMDS addr_1 addr_2 addr_3 addr_4 1020Adhoc 0 0 dest src (terminal) BSSID N/A 1021AP to Terminal 0 1 dest AP(BSSID) source N/A 1022Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 1023AP to AP 1 1 dest AP src AP dest source 1024*******************************************************/ 1025 if (local->net_type == ADHOC) { 1026 writeb(0, &ptx->mac.frame_ctl_2); 1027 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 1028 2 * ADDRLEN); 1029 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 1030 } else { /* infrastructure */ 1031 1032 if (local->sparm.b4.a_acting_as_ap_status) { 1033 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2); 1034 memcpy_toio(ptx->mac.addr_1, 1035 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1036 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6); 1037 memcpy_toio(ptx->mac.addr_3, 1038 ((struct ethhdr *)data)->h_source, ADDRLEN); 1039 } else { /* Terminal */ 1040 1041 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2); 1042 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN); 1043 memcpy_toio(ptx->mac.addr_2, 1044 ((struct ethhdr *)data)->h_source, ADDRLEN); 1045 memcpy_toio(ptx->mac.addr_3, 1046 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1047 } 1048 } 1049} /* end encapsulate_frame */ 1050 1051/*===========================================================================*/ 1052 1053static void netdev_get_drvinfo(struct net_device *dev, 1054 struct ethtool_drvinfo *info) 1055{ 1056 strcpy(info->driver, "ray_cs"); 1057} 1058 1059static const struct ethtool_ops netdev_ethtool_ops = { 1060 .get_drvinfo = netdev_get_drvinfo, 1061}; 1062 1063/*====================================================================*/ 1064 1065/*------------------------------------------------------------------*/ 1066/* 1067 * Wireless Handler : get protocol name 1068 */ 1069static int ray_get_name(struct net_device *dev, struct iw_request_info *info, 1070 union iwreq_data *wrqu, char *extra) 1071{ 1072 strcpy(wrqu->name, "IEEE 802.11-FH"); 1073 return 0; 1074} 1075 1076/*------------------------------------------------------------------*/ 1077/* 1078 * Wireless Handler : set frequency 1079 */ 1080static int ray_set_freq(struct net_device *dev, struct iw_request_info *info, 1081 union iwreq_data *wrqu, char *extra) 1082{ 1083 ray_dev_t *local = netdev_priv(dev); 1084 int err = -EINPROGRESS; /* Call commit handler */ 1085 1086 /* Reject if card is already initialised */ 1087 if (local->card_status != CARD_AWAITING_PARAM) 1088 return -EBUSY; 1089 1090 /* Setting by channel number */ 1091 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0)) 1092 err = -EOPNOTSUPP; 1093 else 1094 local->sparm.b5.a_hop_pattern = wrqu->freq.m; 1095 1096 return err; 1097} 1098 1099/*------------------------------------------------------------------*/ 1100/* 1101 * Wireless Handler : get frequency 1102 */ 1103static int ray_get_freq(struct net_device *dev, struct iw_request_info *info, 1104 union iwreq_data *wrqu, char *extra) 1105{ 1106 ray_dev_t *local = netdev_priv(dev); 1107 1108 wrqu->freq.m = local->sparm.b5.a_hop_pattern; 1109 wrqu->freq.e = 0; 1110 return 0; 1111} 1112 1113/*------------------------------------------------------------------*/ 1114/* 1115 * Wireless Handler : set ESSID 1116 */ 1117static int ray_set_essid(struct net_device *dev, struct iw_request_info *info, 1118 union iwreq_data *wrqu, char *extra) 1119{ 1120 ray_dev_t *local = netdev_priv(dev); 1121 1122 /* Reject if card is already initialised */ 1123 if (local->card_status != CARD_AWAITING_PARAM) 1124 return -EBUSY; 1125 1126 /* Check if we asked for `any' */ 1127 if (wrqu->essid.flags == 0) 1128 /* Corey : can you do that ? */ 1129 return -EOPNOTSUPP; 1130 1131 /* Check the size of the string */ 1132 if (wrqu->essid.length > IW_ESSID_MAX_SIZE) 1133 return -E2BIG; 1134 1135 /* Set the ESSID in the card */ 1136 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE); 1137 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length); 1138 1139 return -EINPROGRESS; /* Call commit handler */ 1140} 1141 1142/*------------------------------------------------------------------*/ 1143/* 1144 * Wireless Handler : get ESSID 1145 */ 1146static int ray_get_essid(struct net_device *dev, struct iw_request_info *info, 1147 union iwreq_data *wrqu, char *extra) 1148{ 1149 ray_dev_t *local = netdev_priv(dev); 1150 1151 /* Get the essid that was set */ 1152 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1153 1154 /* Push it out ! */ 1155 wrqu->essid.length = strlen(extra); 1156 wrqu->essid.flags = 1; /* active */ 1157 1158 return 0; 1159} 1160 1161/*------------------------------------------------------------------*/ 1162/* 1163 * Wireless Handler : get AP address 1164 */ 1165static int ray_get_wap(struct net_device *dev, struct iw_request_info *info, 1166 union iwreq_data *wrqu, char *extra) 1167{ 1168 ray_dev_t *local = netdev_priv(dev); 1169 1170 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN); 1171 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1172 1173 return 0; 1174} 1175 1176/*------------------------------------------------------------------*/ 1177/* 1178 * Wireless Handler : set Bit-Rate 1179 */ 1180static int ray_set_rate(struct net_device *dev, struct iw_request_info *info, 1181 union iwreq_data *wrqu, char *extra) 1182{ 1183 ray_dev_t *local = netdev_priv(dev); 1184 1185 /* Reject if card is already initialised */ 1186 if (local->card_status != CARD_AWAITING_PARAM) 1187 return -EBUSY; 1188 1189 /* Check if rate is in range */ 1190 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000)) 1191 return -EINVAL; 1192 1193 /* Hack for 1.5 Mb/s instead of 2 Mb/s */ 1194 if ((local->fw_ver == 0x55) && /* Please check */ 1195 (wrqu->bitrate.value == 2000000)) 1196 local->net_default_tx_rate = 3; 1197 else 1198 local->net_default_tx_rate = wrqu->bitrate.value / 500000; 1199 1200 return 0; 1201} 1202 1203/*------------------------------------------------------------------*/ 1204/* 1205 * Wireless Handler : get Bit-Rate 1206 */ 1207static int ray_get_rate(struct net_device *dev, struct iw_request_info *info, 1208 union iwreq_data *wrqu, char *extra) 1209{ 1210 ray_dev_t *local = netdev_priv(dev); 1211 1212 if (local->net_default_tx_rate == 3) 1213 wrqu->bitrate.value = 2000000; /* Hum... */ 1214 else 1215 wrqu->bitrate.value = local->net_default_tx_rate * 500000; 1216 wrqu->bitrate.fixed = 0; /* We are in auto mode */ 1217 1218 return 0; 1219} 1220 1221/*------------------------------------------------------------------*/ 1222/* 1223 * Wireless Handler : set RTS threshold 1224 */ 1225static int ray_set_rts(struct net_device *dev, struct iw_request_info *info, 1226 union iwreq_data *wrqu, char *extra) 1227{ 1228 ray_dev_t *local = netdev_priv(dev); 1229 int rthr = wrqu->rts.value; 1230 1231 /* Reject if card is already initialised */ 1232 if (local->card_status != CARD_AWAITING_PARAM) 1233 return -EBUSY; 1234 1235 /* if(wrq->u.rts.fixed == 0) we should complain */ 1236 if (wrqu->rts.disabled) 1237 rthr = 32767; 1238 else { 1239 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */ 1240 return -EINVAL; 1241 } 1242 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF; 1243 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF; 1244 1245 return -EINPROGRESS; /* Call commit handler */ 1246} 1247 1248/*------------------------------------------------------------------*/ 1249/* 1250 * Wireless Handler : get RTS threshold 1251 */ 1252static int ray_get_rts(struct net_device *dev, struct iw_request_info *info, 1253 union iwreq_data *wrqu, char *extra) 1254{ 1255 ray_dev_t *local = netdev_priv(dev); 1256 1257 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8) 1258 + local->sparm.b5.a_rts_threshold[1]; 1259 wrqu->rts.disabled = (wrqu->rts.value == 32767); 1260 wrqu->rts.fixed = 1; 1261 1262 return 0; 1263} 1264 1265/*------------------------------------------------------------------*/ 1266/* 1267 * Wireless Handler : set Fragmentation threshold 1268 */ 1269static int ray_set_frag(struct net_device *dev, struct iw_request_info *info, 1270 union iwreq_data *wrqu, char *extra) 1271{ 1272 ray_dev_t *local = netdev_priv(dev); 1273 int fthr = wrqu->frag.value; 1274 1275 /* Reject if card is already initialised */ 1276 if (local->card_status != CARD_AWAITING_PARAM) 1277 return -EBUSY; 1278 1279 /* if(wrq->u.frag.fixed == 0) should complain */ 1280 if (wrqu->frag.disabled) 1281 fthr = 32767; 1282 else { 1283 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */ 1284 return -EINVAL; 1285 } 1286 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF; 1287 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF; 1288 1289 return -EINPROGRESS; /* Call commit handler */ 1290} 1291 1292/*------------------------------------------------------------------*/ 1293/* 1294 * Wireless Handler : get Fragmentation threshold 1295 */ 1296static int ray_get_frag(struct net_device *dev, struct iw_request_info *info, 1297 union iwreq_data *wrqu, char *extra) 1298{ 1299 ray_dev_t *local = netdev_priv(dev); 1300 1301 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8) 1302 + local->sparm.b5.a_frag_threshold[1]; 1303 wrqu->frag.disabled = (wrqu->frag.value == 32767); 1304 wrqu->frag.fixed = 1; 1305 1306 return 0; 1307} 1308 1309/*------------------------------------------------------------------*/ 1310/* 1311 * Wireless Handler : set Mode of Operation 1312 */ 1313static int ray_set_mode(struct net_device *dev, struct iw_request_info *info, 1314 union iwreq_data *wrqu, char *extra) 1315{ 1316 ray_dev_t *local = netdev_priv(dev); 1317 int err = -EINPROGRESS; /* Call commit handler */ 1318 char card_mode = 1; 1319 1320 /* Reject if card is already initialised */ 1321 if (local->card_status != CARD_AWAITING_PARAM) 1322 return -EBUSY; 1323 1324 switch (wrqu->mode) { 1325 case IW_MODE_ADHOC: 1326 card_mode = 0; 1327 /* Fall through */ 1328 case IW_MODE_INFRA: 1329 local->sparm.b5.a_network_type = card_mode; 1330 break; 1331 default: 1332 err = -EINVAL; 1333 } 1334 1335 return err; 1336} 1337 1338/*------------------------------------------------------------------*/ 1339/* 1340 * Wireless Handler : get Mode of Operation 1341 */ 1342static int ray_get_mode(struct net_device *dev, struct iw_request_info *info, 1343 union iwreq_data *wrqu, char *extra) 1344{ 1345 ray_dev_t *local = netdev_priv(dev); 1346 1347 if (local->sparm.b5.a_network_type) 1348 wrqu->mode = IW_MODE_INFRA; 1349 else 1350 wrqu->mode = IW_MODE_ADHOC; 1351 1352 return 0; 1353} 1354 1355/*------------------------------------------------------------------*/ 1356/* 1357 * Wireless Handler : get range info 1358 */ 1359static int ray_get_range(struct net_device *dev, struct iw_request_info *info, 1360 union iwreq_data *wrqu, char *extra) 1361{ 1362 struct iw_range *range = (struct iw_range *)extra; 1363 1364 memset(range, 0, sizeof(struct iw_range)); 1365 1366 /* Set the length (very important for backward compatibility) */ 1367 wrqu->data.length = sizeof(struct iw_range); 1368 1369 /* Set the Wireless Extension versions */ 1370 range->we_version_compiled = WIRELESS_EXT; 1371 range->we_version_source = 9; 1372 1373 /* Set information in the range struct */ 1374 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */ 1375 range->num_channels = hop_pattern_length[(int)country]; 1376 range->num_frequency = 0; 1377 range->max_qual.qual = 0; 1378 range->max_qual.level = 255; /* What's the correct value ? */ 1379 range->max_qual.noise = 255; /* Idem */ 1380 range->num_bitrates = 2; 1381 range->bitrate[0] = 1000000; /* 1 Mb/s */ 1382 range->bitrate[1] = 2000000; /* 2 Mb/s */ 1383 return 0; 1384} 1385 1386/*------------------------------------------------------------------*/ 1387/* 1388 * Wireless Private Handler : set framing mode 1389 */ 1390static int ray_set_framing(struct net_device *dev, struct iw_request_info *info, 1391 union iwreq_data *wrqu, char *extra) 1392{ 1393 translate = *(extra); /* Set framing mode */ 1394 1395 return 0; 1396} 1397 1398/*------------------------------------------------------------------*/ 1399/* 1400 * Wireless Private Handler : get framing mode 1401 */ 1402static int ray_get_framing(struct net_device *dev, struct iw_request_info *info, 1403 union iwreq_data *wrqu, char *extra) 1404{ 1405 *(extra) = translate; 1406 1407 return 0; 1408} 1409 1410/*------------------------------------------------------------------*/ 1411/* 1412 * Wireless Private Handler : get country 1413 */ 1414static int ray_get_country(struct net_device *dev, struct iw_request_info *info, 1415 union iwreq_data *wrqu, char *extra) 1416{ 1417 *(extra) = country; 1418 1419 return 0; 1420} 1421 1422/*------------------------------------------------------------------*/ 1423/* 1424 * Commit handler : called after a bunch of SET operations 1425 */ 1426static int ray_commit(struct net_device *dev, struct iw_request_info *info, 1427 union iwreq_data *wrqu, char *extra) 1428{ 1429 return 0; 1430} 1431 1432/*------------------------------------------------------------------*/ 1433/* 1434 * Stats handler : return Wireless Stats 1435 */ 1436static iw_stats *ray_get_wireless_stats(struct net_device *dev) 1437{ 1438 ray_dev_t *local = netdev_priv(dev); 1439 struct pcmcia_device *link = local->finder; 1440 struct status __iomem *p = local->sram + STATUS_BASE; 1441 1442 local->wstats.status = local->card_status; 1443#ifdef WIRELESS_SPY 1444 if ((local->spy_data.spy_number > 0) 1445 && (local->sparm.b5.a_network_type == 0)) { 1446 /* Get it from the first node in spy list */ 1447 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual; 1448 local->wstats.qual.level = local->spy_data.spy_stat[0].level; 1449 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise; 1450 local->wstats.qual.updated = 1451 local->spy_data.spy_stat[0].updated; 1452 } 1453#endif /* WIRELESS_SPY */ 1454 1455 if (pcmcia_dev_present(link)) { 1456 local->wstats.qual.noise = readb(&p->rxnoise); 1457 local->wstats.qual.updated |= 4; 1458 } 1459 1460 return &local->wstats; 1461} /* end ray_get_wireless_stats */ 1462 1463/*------------------------------------------------------------------*/ 1464/* 1465 * Structures to export the Wireless Handlers 1466 */ 1467 1468static const iw_handler ray_handler[] = { 1469 IW_HANDLER(SIOCSIWCOMMIT, ray_commit), 1470 IW_HANDLER(SIOCGIWNAME, ray_get_name), 1471 IW_HANDLER(SIOCSIWFREQ, ray_set_freq), 1472 IW_HANDLER(SIOCGIWFREQ, ray_get_freq), 1473 IW_HANDLER(SIOCSIWMODE, ray_set_mode), 1474 IW_HANDLER(SIOCGIWMODE, ray_get_mode), 1475 IW_HANDLER(SIOCGIWRANGE, ray_get_range), 1476#ifdef WIRELESS_SPY 1477 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1478 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1479 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1480 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1481#endif /* WIRELESS_SPY */ 1482 IW_HANDLER(SIOCGIWAP, ray_get_wap), 1483 IW_HANDLER(SIOCSIWESSID, ray_set_essid), 1484 IW_HANDLER(SIOCGIWESSID, ray_get_essid), 1485 IW_HANDLER(SIOCSIWRATE, ray_set_rate), 1486 IW_HANDLER(SIOCGIWRATE, ray_get_rate), 1487 IW_HANDLER(SIOCSIWRTS, ray_set_rts), 1488 IW_HANDLER(SIOCGIWRTS, ray_get_rts), 1489 IW_HANDLER(SIOCSIWFRAG, ray_set_frag), 1490 IW_HANDLER(SIOCGIWFRAG, ray_get_frag), 1491}; 1492 1493#define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */ 1494#define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */ 1495#define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */ 1496 1497static const iw_handler ray_private_handler[] = { 1498 [0] = ray_set_framing, 1499 [1] = ray_get_framing, 1500 [3] = ray_get_country, 1501}; 1502 1503static const struct iw_priv_args ray_private_args[] = { 1504/* cmd, set_args, get_args, name */ 1505 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, 1506 "set_framing"}, 1507 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1508 "get_framing"}, 1509 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1510 "get_country"}, 1511}; 1512 1513static const struct iw_handler_def ray_handler_def = { 1514 .num_standard = ARRAY_SIZE(ray_handler), 1515 .num_private = ARRAY_SIZE(ray_private_handler), 1516 .num_private_args = ARRAY_SIZE(ray_private_args), 1517 .standard = ray_handler, 1518 .private = ray_private_handler, 1519 .private_args = ray_private_args, 1520 .get_wireless_stats = ray_get_wireless_stats, 1521}; 1522 1523/*===========================================================================*/ 1524static int ray_open(struct net_device *dev) 1525{ 1526 ray_dev_t *local = netdev_priv(dev); 1527 struct pcmcia_device *link; 1528 link = local->finder; 1529 1530 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name); 1531 1532 if (link->open == 0) 1533 local->num_multi = 0; 1534 link->open++; 1535 1536 /* If the card is not started, time to start it ! - Jean II */ 1537 if (local->card_status == CARD_AWAITING_PARAM) { 1538 int i; 1539 1540 dev_dbg(&link->dev, "ray_open: doing init now !\n"); 1541 1542 /* Download startup parameters */ 1543 if ((i = dl_startup_params(dev)) < 0) { 1544 printk(KERN_INFO 1545 "ray_dev_init dl_startup_params failed - " 1546 "returns 0x%x\n", i); 1547 return -1; 1548 } 1549 } 1550 1551 if (sniffer) 1552 netif_stop_queue(dev); 1553 else 1554 netif_start_queue(dev); 1555 1556 dev_dbg(&link->dev, "ray_open ending\n"); 1557 return 0; 1558} /* end ray_open */ 1559 1560/*===========================================================================*/ 1561static int ray_dev_close(struct net_device *dev) 1562{ 1563 ray_dev_t *local = netdev_priv(dev); 1564 struct pcmcia_device *link; 1565 link = local->finder; 1566 1567 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name); 1568 1569 link->open--; 1570 netif_stop_queue(dev); 1571 1572 /* In here, we should stop the hardware (stop card from beeing active) 1573 * and set local->card_status to CARD_AWAITING_PARAM, so that while the 1574 * card is closed we can chage its configuration. 1575 * Probably also need a COR reset to get sane state - Jean II */ 1576 1577 return 0; 1578} /* end ray_dev_close */ 1579 1580/*===========================================================================*/ 1581static void ray_reset(struct net_device *dev) 1582{ 1583 pr_debug("ray_reset entered\n"); 1584} 1585 1586/*===========================================================================*/ 1587/* Cause a firmware interrupt if it is ready for one */ 1588/* Return nonzero if not ready */ 1589static int interrupt_ecf(ray_dev_t *local, int ccs) 1590{ 1591 int i = 50; 1592 struct pcmcia_device *link = local->finder; 1593 1594 if (!(pcmcia_dev_present(link))) { 1595 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n"); 1596 return -1; 1597 } 1598 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs); 1599 1600 while (i && 1601 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & 1602 ECF_INTR_SET)) 1603 i--; 1604 if (i == 0) { 1605 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n"); 1606 return -1; 1607 } 1608 /* Fill the mailbox, then kick the card */ 1609 writeb(ccs, local->sram + SCB_BASE); 1610 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET); 1611 return 0; 1612} /* interrupt_ecf */ 1613 1614/*===========================================================================*/ 1615/* Get next free transmit CCS */ 1616/* Return - index of current tx ccs */ 1617static int get_free_tx_ccs(ray_dev_t *local) 1618{ 1619 int i; 1620 struct ccs __iomem *pccs = ccs_base(local); 1621 struct pcmcia_device *link = local->finder; 1622 1623 if (!(pcmcia_dev_present(link))) { 1624 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n"); 1625 return ECARDGONE; 1626 } 1627 1628 if (test_and_set_bit(0, &local->tx_ccs_lock)) { 1629 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n"); 1630 return ECCSBUSY; 1631 } 1632 1633 for (i = 0; i < NUMBER_OF_TX_CCS; i++) { 1634 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1635 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1636 writeb(CCS_END_LIST, &(pccs + i)->link); 1637 local->tx_ccs_lock = 0; 1638 return i; 1639 } 1640 } 1641 local->tx_ccs_lock = 0; 1642 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n"); 1643 return ECCSFULL; 1644} /* get_free_tx_ccs */ 1645 1646/*===========================================================================*/ 1647/* Get next free CCS */ 1648/* Return - index of current ccs */ 1649static int get_free_ccs(ray_dev_t *local) 1650{ 1651 int i; 1652 struct ccs __iomem *pccs = ccs_base(local); 1653 struct pcmcia_device *link = local->finder; 1654 1655 if (!(pcmcia_dev_present(link))) { 1656 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n"); 1657 return ECARDGONE; 1658 } 1659 if (test_and_set_bit(0, &local->ccs_lock)) { 1660 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n"); 1661 return ECCSBUSY; 1662 } 1663 1664 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) { 1665 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1666 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1667 writeb(CCS_END_LIST, &(pccs + i)->link); 1668 local->ccs_lock = 0; 1669 return i; 1670 } 1671 } 1672 local->ccs_lock = 0; 1673 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n"); 1674 return ECCSFULL; 1675} /* get_free_ccs */ 1676 1677/*===========================================================================*/ 1678static void authenticate_timeout(u_long data) 1679{ 1680 ray_dev_t *local = (ray_dev_t *) data; 1681 del_timer(&local->timer); 1682 printk(KERN_INFO "ray_cs Authentication with access point failed" 1683 " - timeout\n"); 1684 join_net((u_long) local); 1685} 1686 1687/*===========================================================================*/ 1688static int parse_addr(char *in_str, UCHAR *out) 1689{ 1690 int len; 1691 int i, j, k; 1692 int status; 1693 1694 if (in_str == NULL) 1695 return 0; 1696 if ((len = strlen(in_str)) < 2) 1697 return 0; 1698 memset(out, 0, ADDRLEN); 1699 1700 status = 1; 1701 j = len - 1; 1702 if (j > 12) 1703 j = 12; 1704 i = 5; 1705 1706 while (j > 0) { 1707 if ((k = hex_to_bin(in_str[j--])) != -1) 1708 out[i] = k; 1709 else 1710 return 0; 1711 1712 if (j == 0) 1713 break; 1714 if ((k = hex_to_bin(in_str[j--])) != -1) 1715 out[i] += k << 4; 1716 else 1717 return 0; 1718 if (!i--) 1719 break; 1720 } 1721 return status; 1722} 1723 1724/*===========================================================================*/ 1725static struct net_device_stats *ray_get_stats(struct net_device *dev) 1726{ 1727 ray_dev_t *local = netdev_priv(dev); 1728 struct pcmcia_device *link = local->finder; 1729 struct status __iomem *p = local->sram + STATUS_BASE; 1730 if (!(pcmcia_dev_present(link))) { 1731 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1732 return &local->stats; 1733 } 1734 if (readb(&p->mrx_overflow_for_host)) { 1735 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1736 writeb(0, &p->mrx_overflow); 1737 writeb(0, &p->mrx_overflow_for_host); 1738 } 1739 if (readb(&p->mrx_checksum_error_for_host)) { 1740 local->stats.rx_crc_errors += 1741 swab16(readw(&p->mrx_checksum_error)); 1742 writeb(0, &p->mrx_checksum_error); 1743 writeb(0, &p->mrx_checksum_error_for_host); 1744 } 1745 if (readb(&p->rx_hec_error_for_host)) { 1746 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1747 writeb(0, &p->rx_hec_error); 1748 writeb(0, &p->rx_hec_error_for_host); 1749 } 1750 return &local->stats; 1751} 1752 1753/*===========================================================================*/ 1754static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1755 int len) 1756{ 1757 ray_dev_t *local = netdev_priv(dev); 1758 struct pcmcia_device *link = local->finder; 1759 int ccsindex; 1760 int i; 1761 struct ccs __iomem *pccs; 1762 1763 if (!(pcmcia_dev_present(link))) { 1764 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1765 return; 1766 } 1767 1768 if ((ccsindex = get_free_ccs(local)) < 0) { 1769 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1770 return; 1771 } 1772 pccs = ccs_base(local) + ccsindex; 1773 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1774 writeb(objid, &pccs->var.update_param.object_id); 1775 writeb(1, &pccs->var.update_param.number_objects); 1776 writeb(0, &pccs->var.update_param.failure_cause); 1777 for (i = 0; i < len; i++) { 1778 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1779 } 1780 /* Interrupt the firmware to process the command */ 1781 if (interrupt_ecf(local, ccsindex)) { 1782 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1783 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1784 } 1785} 1786 1787/*===========================================================================*/ 1788static void ray_update_multi_list(struct net_device *dev, int all) 1789{ 1790 int ccsindex; 1791 struct ccs __iomem *pccs; 1792 ray_dev_t *local = netdev_priv(dev); 1793 struct pcmcia_device *link = local->finder; 1794 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1795 1796 if (!(pcmcia_dev_present(link))) { 1797 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1798 return; 1799 } else 1800 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1801 if ((ccsindex = get_free_ccs(local)) < 0) { 1802 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1803 return; 1804 } 1805 pccs = ccs_base(local) + ccsindex; 1806 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1807 1808 if (all) { 1809 writeb(0xff, &pccs->var); 1810 local->num_multi = 0xff; 1811 } else { 1812 struct netdev_hw_addr *ha; 1813 int i = 0; 1814 1815 /* Copy the kernel's list of MC addresses to card */ 1816 netdev_for_each_mc_addr(ha, dev) { 1817 memcpy_toio(p, ha->addr, ETH_ALEN); 1818 dev_dbg(&link->dev, 1819 "ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n", 1820 ha->addr[0], ha->addr[1], 1821 ha->addr[2], ha->addr[3], 1822 ha->addr[4], ha->addr[5]); 1823 p += ETH_ALEN; 1824 i++; 1825 } 1826 if (i > 256 / ADDRLEN) 1827 i = 256 / ADDRLEN; 1828 writeb((UCHAR) i, &pccs->var); 1829 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1830 /* Interrupt the firmware to process the command */ 1831 local->num_multi = i; 1832 } 1833 if (interrupt_ecf(local, ccsindex)) { 1834 dev_dbg(&link->dev, 1835 "ray_cs update_multi failed - ECF not ready for intr\n"); 1836 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1837 } 1838} /* end ray_update_multi_list */ 1839 1840/*===========================================================================*/ 1841static void set_multicast_list(struct net_device *dev) 1842{ 1843 ray_dev_t *local = netdev_priv(dev); 1844 UCHAR promisc; 1845 1846 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1847 1848 if (dev->flags & IFF_PROMISC) { 1849 if (local->sparm.b5.a_promiscuous_mode == 0) { 1850 pr_debug("ray_cs set_multicast_list promisc on\n"); 1851 local->sparm.b5.a_promiscuous_mode = 1; 1852 promisc = 1; 1853 ray_update_parm(dev, OBJID_promiscuous_mode, 1854 &promisc, sizeof(promisc)); 1855 } 1856 } else { 1857 if (local->sparm.b5.a_promiscuous_mode == 1) { 1858 pr_debug("ray_cs set_multicast_list promisc off\n"); 1859 local->sparm.b5.a_promiscuous_mode = 0; 1860 promisc = 0; 1861 ray_update_parm(dev, OBJID_promiscuous_mode, 1862 &promisc, sizeof(promisc)); 1863 } 1864 } 1865 1866 if (dev->flags & IFF_ALLMULTI) 1867 ray_update_multi_list(dev, 1); 1868 else { 1869 if (local->num_multi != netdev_mc_count(dev)) 1870 ray_update_multi_list(dev, 0); 1871 } 1872} /* end set_multicast_list */ 1873 1874/*============================================================================= 1875 * All routines below here are run at interrupt time. 1876=============================================================================*/ 1877static irqreturn_t ray_interrupt(int irq, void *dev_id) 1878{ 1879 struct net_device *dev = (struct net_device *)dev_id; 1880 struct pcmcia_device *link; 1881 ray_dev_t *local; 1882 struct ccs __iomem *pccs; 1883 struct rcs __iomem *prcs; 1884 UCHAR rcsindex; 1885 UCHAR tmp; 1886 UCHAR cmd; 1887 UCHAR status; 1888 1889 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1890 return IRQ_NONE; 1891 1892 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1893 1894 local = netdev_priv(dev); 1895 link = (struct pcmcia_device *)local->finder; 1896 if (!pcmcia_dev_present(link)) { 1897 pr_debug( 1898 "ray_cs interrupt from device not present or suspended.\n"); 1899 return IRQ_NONE; 1900 } 1901 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1902 1903 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1904 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1905 clear_interrupt(local); 1906 return IRQ_HANDLED; 1907 } 1908 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1909 pccs = ccs_base(local) + rcsindex; 1910 cmd = readb(&pccs->cmd); 1911 status = readb(&pccs->buffer_status); 1912 switch (cmd) { 1913 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1914 del_timer(&local->timer); 1915 if (status == CCS_COMMAND_COMPLETE) { 1916 dev_dbg(&link->dev, 1917 "ray_cs interrupt download_startup_parameters OK\n"); 1918 } else { 1919 dev_dbg(&link->dev, 1920 "ray_cs interrupt download_startup_parameters fail\n"); 1921 } 1922 break; 1923 case CCS_UPDATE_PARAMS: 1924 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1925 if (status != CCS_COMMAND_COMPLETE) { 1926 tmp = 1927 readb(&pccs->var.update_param. 1928 failure_cause); 1929 dev_dbg(&link->dev, 1930 "ray_cs interrupt update params failed - reason %d\n", 1931 tmp); 1932 } 1933 break; 1934 case CCS_REPORT_PARAMS: 1935 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1936 break; 1937 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1938 dev_dbg(&link->dev, 1939 "ray_cs interrupt CCS Update Multicast List done\n"); 1940 break; 1941 case CCS_UPDATE_POWER_SAVINGS_MODE: 1942 dev_dbg(&link->dev, 1943 "ray_cs interrupt update power save mode done\n"); 1944 break; 1945 case CCS_START_NETWORK: 1946 case CCS_JOIN_NETWORK: 1947 if (status == CCS_COMMAND_COMPLETE) { 1948 if (readb 1949 (&pccs->var.start_network.net_initiated) == 1950 1) { 1951 dev_dbg(&link->dev, 1952 "ray_cs interrupt network \"%s\" started\n", 1953 local->sparm.b4.a_current_ess_id); 1954 } else { 1955 dev_dbg(&link->dev, 1956 "ray_cs interrupt network \"%s\" joined\n", 1957 local->sparm.b4.a_current_ess_id); 1958 } 1959 memcpy_fromio(&local->bss_id, 1960 pccs->var.start_network.bssid, 1961 ADDRLEN); 1962 1963 if (local->fw_ver == 0x55) 1964 local->net_default_tx_rate = 3; 1965 else 1966 local->net_default_tx_rate = 1967 readb(&pccs->var.start_network. 1968 net_default_tx_rate); 1969 local->encryption = 1970 readb(&pccs->var.start_network.encryption); 1971 if (!sniffer && (local->net_type == INFRA) 1972 && !(local->sparm.b4.a_acting_as_ap_status)) { 1973 authenticate(local); 1974 } 1975 local->card_status = CARD_ACQ_COMPLETE; 1976 } else { 1977 local->card_status = CARD_ACQ_FAILED; 1978 1979 del_timer(&local->timer); 1980 local->timer.expires = jiffies + HZ * 5; 1981 local->timer.data = (long)local; 1982 if (status == CCS_START_NETWORK) { 1983 dev_dbg(&link->dev, 1984 "ray_cs interrupt network \"%s\" start failed\n", 1985 local->sparm.b4.a_current_ess_id); 1986 local->timer.function = &start_net; 1987 } else { 1988 dev_dbg(&link->dev, 1989 "ray_cs interrupt network \"%s\" join failed\n", 1990 local->sparm.b4.a_current_ess_id); 1991 local->timer.function = &join_net; 1992 } 1993 add_timer(&local->timer); 1994 } 1995 break; 1996 case CCS_START_ASSOCIATION: 1997 if (status == CCS_COMMAND_COMPLETE) { 1998 local->card_status = CARD_ASSOC_COMPLETE; 1999 dev_dbg(&link->dev, "ray_cs association successful\n"); 2000 } else { 2001 dev_dbg(&link->dev, "ray_cs association failed,\n"); 2002 local->card_status = CARD_ASSOC_FAILED; 2003 join_net((u_long) local); 2004 } 2005 break; 2006 case CCS_TX_REQUEST: 2007 if (status == CCS_COMMAND_COMPLETE) { 2008 dev_dbg(&link->dev, 2009 "ray_cs interrupt tx request complete\n"); 2010 } else { 2011 dev_dbg(&link->dev, 2012 "ray_cs interrupt tx request failed\n"); 2013 } 2014 if (!sniffer) 2015 netif_start_queue(dev); 2016 netif_wake_queue(dev); 2017 break; 2018 case CCS_TEST_MEMORY: 2019 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 2020 break; 2021 case CCS_SHUTDOWN: 2022 dev_dbg(&link->dev, 2023 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 2024 break; 2025 case CCS_DUMP_MEMORY: 2026 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 2027 break; 2028 case CCS_START_TIMER: 2029 dev_dbg(&link->dev, 2030 "ray_cs interrupt DING - raylink timer expired\n"); 2031 break; 2032 default: 2033 dev_dbg(&link->dev, 2034 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 2035 rcsindex, cmd); 2036 } 2037 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 2038 } else { /* It's an RCS */ 2039 2040 prcs = rcs_base(local) + rcsindex; 2041 2042 switch (readb(&prcs->interrupt_id)) { 2043 case PROCESS_RX_PACKET: 2044 ray_rx(dev, local, prcs); 2045 break; 2046 case REJOIN_NET_COMPLETE: 2047 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2048 local->card_status = CARD_ACQ_COMPLETE; 2049 /* do we need to clear tx buffers CCS's? */ 2050 if (local->sparm.b4.a_network_type == ADHOC) { 2051 if (!sniffer) 2052 netif_start_queue(dev); 2053 } else { 2054 memcpy_fromio(&local->bss_id, 2055 prcs->var.rejoin_net_complete. 2056 bssid, ADDRLEN); 2057 dev_dbg(&link->dev, 2058 "ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n", 2059 local->bss_id[0], local->bss_id[1], 2060 local->bss_id[2], local->bss_id[3], 2061 local->bss_id[4], local->bss_id[5]); 2062 if (!sniffer) 2063 authenticate(local); 2064 } 2065 break; 2066 case ROAMING_INITIATED: 2067 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2068 netif_stop_queue(dev); 2069 local->card_status = CARD_DOING_ACQ; 2070 break; 2071 case JAPAN_CALL_SIGN_RXD: 2072 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2073 break; 2074 default: 2075 dev_dbg(&link->dev, 2076 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2077 rcsindex, 2078 (unsigned int)readb(&prcs->interrupt_id)); 2079 break; 2080 } 2081 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2082 } 2083 clear_interrupt(local); 2084 return IRQ_HANDLED; 2085} /* ray_interrupt */ 2086 2087/*===========================================================================*/ 2088static void ray_rx(struct net_device *dev, ray_dev_t *local, 2089 struct rcs __iomem *prcs) 2090{ 2091 int rx_len; 2092 unsigned int pkt_addr; 2093 void __iomem *pmsg; 2094 pr_debug("ray_rx process rx packet\n"); 2095 2096 /* Calculate address of packet within Rx buffer */ 2097 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2098 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2099 /* Length of first packet fragment */ 2100 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2101 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2102 2103 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2104 pmsg = local->rmem + pkt_addr; 2105 switch (readb(pmsg)) { 2106 case DATA_TYPE: 2107 pr_debug("ray_rx data type\n"); 2108 rx_data(dev, prcs, pkt_addr, rx_len); 2109 break; 2110 case AUTHENTIC_TYPE: 2111 pr_debug("ray_rx authentic type\n"); 2112 if (sniffer) 2113 rx_data(dev, prcs, pkt_addr, rx_len); 2114 else 2115 rx_authenticate(local, prcs, pkt_addr, rx_len); 2116 break; 2117 case DEAUTHENTIC_TYPE: 2118 pr_debug("ray_rx deauth type\n"); 2119 if (sniffer) 2120 rx_data(dev, prcs, pkt_addr, rx_len); 2121 else 2122 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2123 break; 2124 case NULL_MSG_TYPE: 2125 pr_debug("ray_cs rx NULL msg\n"); 2126 break; 2127 case BEACON_TYPE: 2128 pr_debug("ray_rx beacon type\n"); 2129 if (sniffer) 2130 rx_data(dev, prcs, pkt_addr, rx_len); 2131 2132 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2133 rx_len < sizeof(struct beacon_rx) ? 2134 rx_len : sizeof(struct beacon_rx)); 2135 2136 local->beacon_rxed = 1; 2137 /* Get the statistics so the card counters never overflow */ 2138 ray_get_stats(dev); 2139 break; 2140 default: 2141 pr_debug("ray_cs unknown pkt type %2x\n", 2142 (unsigned int)readb(pmsg)); 2143 break; 2144 } 2145 2146} /* end ray_rx */ 2147 2148/*===========================================================================*/ 2149static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2150 unsigned int pkt_addr, int rx_len) 2151{ 2152 struct sk_buff *skb = NULL; 2153 struct rcs __iomem *prcslink = prcs; 2154 ray_dev_t *local = netdev_priv(dev); 2155 UCHAR *rx_ptr; 2156 int total_len; 2157 int tmp; 2158#ifdef WIRELESS_SPY 2159 int siglev = local->last_rsl; 2160 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2161#endif 2162 2163 if (!sniffer) { 2164 if (translate) { 2165/* TBD length needs fixing for translated header */ 2166 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2167 rx_len > 2168 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2169 FCS_LEN)) { 2170 pr_debug( 2171 "ray_cs invalid packet length %d received\n", 2172 rx_len); 2173 return; 2174 } 2175 } else { /* encapsulated ethernet */ 2176 2177 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2178 rx_len > 2179 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2180 FCS_LEN)) { 2181 pr_debug( 2182 "ray_cs invalid packet length %d received\n", 2183 rx_len); 2184 return; 2185 } 2186 } 2187 } 2188 pr_debug("ray_cs rx_data packet\n"); 2189 /* If fragmented packet, verify sizes of fragments add up */ 2190 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2191 pr_debug("ray_cs rx'ed fragment\n"); 2192 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2193 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2194 total_len = tmp; 2195 prcslink = prcs; 2196 do { 2197 tmp -= 2198 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2199 << 8) 2200 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2201 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2202 == 0xFF || tmp < 0) 2203 break; 2204 prcslink = rcs_base(local) 2205 + readb(&prcslink->link_field); 2206 } while (1); 2207 2208 if (tmp < 0) { 2209 pr_debug( 2210 "ray_cs rx_data fragment lengths don't add up\n"); 2211 local->stats.rx_dropped++; 2212 release_frag_chain(local, prcs); 2213 return; 2214 } 2215 } else { /* Single unfragmented packet */ 2216 total_len = rx_len; 2217 } 2218 2219 skb = dev_alloc_skb(total_len + 5); 2220 if (skb == NULL) { 2221 pr_debug("ray_cs rx_data could not allocate skb\n"); 2222 local->stats.rx_dropped++; 2223 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2224 release_frag_chain(local, prcs); 2225 return; 2226 } 2227 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2228 2229 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2230 rx_len); 2231 2232/************************/ 2233 /* Reserve enough room for the whole damn packet. */ 2234 rx_ptr = skb_put(skb, total_len); 2235 /* Copy the whole packet to sk_buff */ 2236 rx_ptr += 2237 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2238 /* Get source address */ 2239#ifdef WIRELESS_SPY 2240 skb_copy_from_linear_data_offset(skb, 2241 offsetof(struct mac_header, addr_2), 2242 linksrcaddr, ETH_ALEN); 2243#endif 2244 /* Now, deal with encapsulation/translation/sniffer */ 2245 if (!sniffer) { 2246 if (!translate) { 2247 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2248/* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2249 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2250 } else { 2251 /* Do translation */ 2252 untranslate(local, skb, total_len); 2253 } 2254 } else { /* sniffer mode, so just pass whole packet */ 2255 }; 2256 2257/************************/ 2258 /* Now pick up the rest of the fragments if any */ 2259 tmp = 17; 2260 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2261 prcslink = prcs; 2262 pr_debug("ray_cs rx_data in fragment loop\n"); 2263 do { 2264 prcslink = rcs_base(local) 2265 + 2266 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2267 rx_len = 2268 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2269 << 8) 2270 + 2271 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2272 & RX_BUFF_END; 2273 pkt_addr = 2274 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2275 8) 2276 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2277 & RX_BUFF_END; 2278 2279 rx_ptr += 2280 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2281 2282 } while (tmp-- && 2283 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2284 0xFF); 2285 release_frag_chain(local, prcs); 2286 } 2287 2288 skb->protocol = eth_type_trans(skb, dev); 2289 netif_rx(skb); 2290 local->stats.rx_packets++; 2291 local->stats.rx_bytes += total_len; 2292 2293 /* Gather signal strength per address */ 2294#ifdef WIRELESS_SPY 2295 /* For the Access Point or the node having started the ad-hoc net 2296 * note : ad-hoc work only in some specific configurations, but we 2297 * kludge in ray_get_wireless_stats... */ 2298 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2299 /* Update statistics */ 2300 /*local->wstats.qual.qual = none ? */ 2301 local->wstats.qual.level = siglev; 2302 /*local->wstats.qual.noise = none ? */ 2303 local->wstats.qual.updated = 0x2; 2304 } 2305 /* Now, update the spy stuff */ 2306 { 2307 struct iw_quality wstats; 2308 wstats.level = siglev; 2309 /* wstats.noise = none ? */ 2310 /* wstats.qual = none ? */ 2311 wstats.updated = 0x2; 2312 /* Update spy records */ 2313 wireless_spy_update(dev, linksrcaddr, &wstats); 2314 } 2315#endif /* WIRELESS_SPY */ 2316} /* end rx_data */ 2317 2318/*===========================================================================*/ 2319static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2320{ 2321 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2322 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2323 __be16 type = *(__be16 *) psnap->ethertype; 2324 int delta; 2325 struct ethhdr *peth; 2326 UCHAR srcaddr[ADDRLEN]; 2327 UCHAR destaddr[ADDRLEN]; 2328 static UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2329 static UCHAR org_1042[3] = { 0, 0, 0 }; 2330 2331 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2332 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2333 2334 2335 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2336 /* not a snap type so leave it alone */ 2337 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2338 psnap->dsap, psnap->ssap, psnap->ctrl); 2339 2340 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2341 peth = (struct ethhdr *)(skb->data + delta); 2342 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2343 } else { /* Its a SNAP */ 2344 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2345 /* EtherII and nuke the LLC */ 2346 pr_debug("ray_cs untranslate Bridge encap\n"); 2347 delta = RX_MAC_HEADER_LENGTH 2348 + sizeof(struct snaphdr_t) - ETH_HLEN; 2349 peth = (struct ethhdr *)(skb->data + delta); 2350 peth->h_proto = type; 2351 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2352 switch (ntohs(type)) { 2353 case ETH_P_IPX: 2354 case ETH_P_AARP: 2355 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2356 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2357 peth = (struct ethhdr *)(skb->data + delta); 2358 peth->h_proto = 2359 htons(len - RX_MAC_HEADER_LENGTH); 2360 break; 2361 default: 2362 pr_debug("ray_cs untranslate RFC default\n"); 2363 delta = RX_MAC_HEADER_LENGTH + 2364 sizeof(struct snaphdr_t) - ETH_HLEN; 2365 peth = (struct ethhdr *)(skb->data + delta); 2366 peth->h_proto = type; 2367 break; 2368 } 2369 } else { 2370 printk("ray_cs untranslate very confused by packet\n"); 2371 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2372 peth = (struct ethhdr *)(skb->data + delta); 2373 peth->h_proto = type; 2374 } 2375 } 2376/* TBD reserve skb_reserve(skb, delta); */ 2377 skb_pull(skb, delta); 2378 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2379 skb->data); 2380 memcpy(peth->h_dest, destaddr, ADDRLEN); 2381 memcpy(peth->h_source, srcaddr, ADDRLEN); 2382} /* end untranslate */ 2383 2384/*===========================================================================*/ 2385/* Copy data from circular receive buffer to PC memory. 2386 * dest = destination address in PC memory 2387 * pkt_addr = source address in receive buffer 2388 * len = length of packet to copy 2389 */ 2390static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2391 int length) 2392{ 2393 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2394 if (wrap_bytes <= 0) { 2395 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2396 } else { /* Packet wrapped in circular buffer */ 2397 2398 memcpy_fromio(dest, local->rmem + pkt_addr, 2399 length - wrap_bytes); 2400 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2401 wrap_bytes); 2402 } 2403 return length; 2404} 2405 2406/*===========================================================================*/ 2407static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2408{ 2409 struct rcs __iomem *prcslink = prcs; 2410 int tmp = 17; 2411 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2412 2413 while (tmp--) { 2414 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2415 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2416 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2417 rcsindex); 2418 break; 2419 } 2420 prcslink = rcs_base(local) + rcsindex; 2421 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2422 } 2423 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2424} 2425 2426/*===========================================================================*/ 2427static void authenticate(ray_dev_t *local) 2428{ 2429 struct pcmcia_device *link = local->finder; 2430 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2431 if (!(pcmcia_dev_present(link))) { 2432 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2433 return; 2434 } 2435 2436 del_timer(&local->timer); 2437 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2438 local->timer.function = &join_net; 2439 } else { 2440 local->timer.function = &authenticate_timeout; 2441 } 2442 local->timer.expires = jiffies + HZ * 2; 2443 local->timer.data = (long)local; 2444 add_timer(&local->timer); 2445 local->authentication_state = AWAITING_RESPONSE; 2446} /* end authenticate */ 2447 2448/*===========================================================================*/ 2449static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2450 unsigned int pkt_addr, int rx_len) 2451{ 2452 UCHAR buff[256]; 2453 struct rx_msg *msg = (struct rx_msg *)buff; 2454 2455 del_timer(&local->timer); 2456 2457 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2458 /* if we are trying to get authenticated */ 2459 if (local->sparm.b4.a_network_type == ADHOC) { 2460 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n", 2461 msg->var[0], msg->var[1], msg->var[2], msg->var[3], 2462 msg->var[4], msg->var[5]); 2463 if (msg->var[2] == 1) { 2464 pr_debug("ray_cs Sending authentication response.\n"); 2465 if (!build_auth_frame 2466 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2467 local->authentication_state = NEED_TO_AUTH; 2468 memcpy(local->auth_id, msg->mac.addr_2, 2469 ADDRLEN); 2470 } 2471 } 2472 } else { /* Infrastructure network */ 2473 2474 if (local->authentication_state == AWAITING_RESPONSE) { 2475 /* Verify authentication sequence #2 and success */ 2476 if (msg->var[2] == 2) { 2477 if ((msg->var[3] | msg->var[4]) == 0) { 2478 pr_debug("Authentication successful\n"); 2479 local->card_status = CARD_AUTH_COMPLETE; 2480 associate(local); 2481 local->authentication_state = 2482 AUTHENTICATED; 2483 } else { 2484 pr_debug("Authentication refused\n"); 2485 local->card_status = CARD_AUTH_REFUSED; 2486 join_net((u_long) local); 2487 local->authentication_state = 2488 UNAUTHENTICATED; 2489 } 2490 } 2491 } 2492 } 2493 2494} /* end rx_authenticate */ 2495 2496/*===========================================================================*/ 2497static void associate(ray_dev_t *local) 2498{ 2499 struct ccs __iomem *pccs; 2500 struct pcmcia_device *link = local->finder; 2501 struct net_device *dev = link->priv; 2502 int ccsindex; 2503 if (!(pcmcia_dev_present(link))) { 2504 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2505 return; 2506 } 2507 /* If no tx buffers available, return */ 2508 if ((ccsindex = get_free_ccs(local)) < 0) { 2509/* TBD should never be here but... what if we are? */ 2510 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2511 return; 2512 } 2513 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2514 pccs = ccs_base(local) + ccsindex; 2515 /* fill in the CCS */ 2516 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2517 /* Interrupt the firmware to process the command */ 2518 if (interrupt_ecf(local, ccsindex)) { 2519 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2520 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2521 2522 del_timer(&local->timer); 2523 local->timer.expires = jiffies + HZ * 2; 2524 local->timer.data = (long)local; 2525 local->timer.function = &join_net; 2526 add_timer(&local->timer); 2527 local->card_status = CARD_ASSOC_FAILED; 2528 return; 2529 } 2530 if (!sniffer) 2531 netif_start_queue(dev); 2532 2533} /* end associate */ 2534 2535/*===========================================================================*/ 2536static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2537 unsigned int pkt_addr, int rx_len) 2538{ 2539/* UCHAR buff[256]; 2540 struct rx_msg *msg = (struct rx_msg *)buff; 2541*/ 2542 pr_debug("Deauthentication frame received\n"); 2543 local->authentication_state = UNAUTHENTICATED; 2544 /* Need to reauthenticate or rejoin depending on reason code */ 2545/* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2546 */ 2547} 2548 2549/*===========================================================================*/ 2550static void clear_interrupt(ray_dev_t *local) 2551{ 2552 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2553} 2554 2555/*===========================================================================*/ 2556#ifdef CONFIG_PROC_FS 2557#define MAXDATA (PAGE_SIZE - 80) 2558 2559static char *card_status[] = { 2560 "Card inserted - uninitialized", /* 0 */ 2561 "Card not downloaded", /* 1 */ 2562 "Waiting for download parameters", /* 2 */ 2563 "Card doing acquisition", /* 3 */ 2564 "Acquisition complete", /* 4 */ 2565 "Authentication complete", /* 5 */ 2566 "Association complete", /* 6 */ 2567 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2568 "Card init error", /* 11 */ 2569 "Download parameters error", /* 12 */ 2570 "???", /* 13 */ 2571 "Acquisition failed", /* 14 */ 2572 "Authentication refused", /* 15 */ 2573 "Association failed" /* 16 */ 2574}; 2575 2576static char *nettype[] = { "Adhoc", "Infra " }; 2577static char *framing[] = { "Encapsulation", "Translation" } 2578 2579; 2580/*===========================================================================*/ 2581static int ray_cs_proc_show(struct seq_file *m, void *v) 2582{ 2583/* Print current values which are not available via other means 2584 * eg ifconfig 2585 */ 2586 int i; 2587 struct pcmcia_device *link; 2588 struct net_device *dev; 2589 ray_dev_t *local; 2590 UCHAR *p; 2591 struct freq_hop_element *pfh; 2592 UCHAR c[33]; 2593 2594 link = this_device; 2595 if (!link) 2596 return 0; 2597 dev = (struct net_device *)link->priv; 2598 if (!dev) 2599 return 0; 2600 local = netdev_priv(dev); 2601 if (!local) 2602 return 0; 2603 2604 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2605 seq_printf(m, "%s\n", rcsid); 2606 /* build 4 does not report version, and field is 0x55 after memtest */ 2607 seq_puts(m, "Firmware version = "); 2608 if (local->fw_ver == 0x55) 2609 seq_puts(m, "4 - Use dump_cis for more details\n"); 2610 else 2611 seq_printf(m, "%2d.%02d.%02d\n", 2612 local->fw_ver, local->fw_bld, local->fw_var); 2613 2614 for (i = 0; i < 32; i++) 2615 c[i] = local->sparm.b5.a_current_ess_id[i]; 2616 c[32] = 0; 2617 seq_printf(m, "%s network ESSID = \"%s\"\n", 2618 nettype[local->sparm.b5.a_network_type], c); 2619 2620 p = local->bss_id; 2621 seq_printf(m, "BSSID = %pM\n", p); 2622 2623 seq_printf(m, "Country code = %d\n", 2624 local->sparm.b5.a_curr_country_code); 2625 2626 i = local->card_status; 2627 if (i < 0) 2628 i = 10; 2629 if (i > 16) 2630 i = 10; 2631 seq_printf(m, "Card status = %s\n", card_status[i]); 2632 2633 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2634 2635 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2636 2637 if (local->beacon_rxed) { 2638 /* Pull some fields out of last beacon received */ 2639 seq_printf(m, "Beacon Interval = %d Kus\n", 2640 local->last_bcn.beacon_intvl[0] 2641 + 256 * local->last_bcn.beacon_intvl[1]); 2642 2643 p = local->last_bcn.elements; 2644 if (p[0] == C_ESSID_ELEMENT_ID) 2645 p += p[1] + 2; 2646 else { 2647 seq_printf(m, 2648 "Parse beacon failed at essid element id = %d\n", 2649 p[0]); 2650 return 0; 2651 } 2652 2653 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2654 seq_puts(m, "Supported rate codes = "); 2655 for (i = 2; i < p[1] + 2; i++) 2656 seq_printf(m, "0x%02x ", p[i]); 2657 seq_putc(m, '\n'); 2658 p += p[1] + 2; 2659 } else { 2660 seq_puts(m, "Parse beacon failed at rates element\n"); 2661 return 0; 2662 } 2663 2664 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2665 pfh = (struct freq_hop_element *)p; 2666 seq_printf(m, "Hop dwell = %d Kus\n", 2667 pfh->dwell_time[0] + 2668 256 * pfh->dwell_time[1]); 2669 seq_printf(m, "Hop set = %d\n", 2670 pfh->hop_set); 2671 seq_printf(m, "Hop pattern = %d\n", 2672 pfh->hop_pattern); 2673 seq_printf(m, "Hop index = %d\n", 2674 pfh->hop_index); 2675 p += p[1] + 2; 2676 } else { 2677 seq_puts(m, 2678 "Parse beacon failed at FH param element\n"); 2679 return 0; 2680 } 2681 } else { 2682 seq_puts(m, "No beacons received\n"); 2683 } 2684 return 0; 2685} 2686 2687static int ray_cs_proc_open(struct inode *inode, struct file *file) 2688{ 2689 return single_open(file, ray_cs_proc_show, NULL); 2690} 2691 2692static const struct file_operations ray_cs_proc_fops = { 2693 .owner = THIS_MODULE, 2694 .open = ray_cs_proc_open, 2695 .read = seq_read, 2696 .llseek = seq_lseek, 2697 .release = single_release, 2698}; 2699#endif 2700/*===========================================================================*/ 2701static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2702{ 2703 int addr; 2704 struct ccs __iomem *pccs; 2705 struct tx_msg __iomem *ptx; 2706 int ccsindex; 2707 2708 /* If no tx buffers available, return */ 2709 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2710 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2711 return -1; 2712 } 2713 2714 pccs = ccs_base(local) + ccsindex; 2715 2716 /* Address in card space */ 2717 addr = TX_BUF_BASE + (ccsindex << 11); 2718 /* fill in the CCS */ 2719 writeb(CCS_TX_REQUEST, &pccs->cmd); 2720 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2721 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2722 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2723 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2724 pccs->var.tx_request.tx_data_length + 1); 2725 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2726 2727 ptx = local->sram + addr; 2728 /* fill in the mac header */ 2729 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2730 writeb(0, &ptx->mac.frame_ctl_2); 2731 2732 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2733 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2734 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2735 2736 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2737 memset_io(ptx->var, 0, 6); 2738 writeb(auth_type & 0xff, ptx->var + 2); 2739 2740 /* Interrupt the firmware to process the command */ 2741 if (interrupt_ecf(local, ccsindex)) { 2742 pr_debug( 2743 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2744 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2745 return -1; 2746 } 2747 return 0; 2748} /* End build_auth_frame */ 2749 2750/*===========================================================================*/ 2751#ifdef CONFIG_PROC_FS 2752static ssize_t ray_cs_essid_proc_write(struct file *file, 2753 const char __user *buffer, size_t count, loff_t *pos) 2754{ 2755 static char proc_essid[33]; 2756 unsigned int len = count; 2757 2758 if (len > 32) 2759 len = 32; 2760 memset(proc_essid, 0, 33); 2761 if (copy_from_user(proc_essid, buffer, len)) 2762 return -EFAULT; 2763 essid = proc_essid; 2764 return count; 2765} 2766 2767static const struct file_operations ray_cs_essid_proc_fops = { 2768 .owner = THIS_MODULE, 2769 .write = ray_cs_essid_proc_write, 2770}; 2771 2772static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2773 size_t count, loff_t *pos) 2774{ 2775 static char proc_number[10]; 2776 char *p; 2777 int nr, len; 2778 2779 if (!count) 2780 return 0; 2781 2782 if (count > 9) 2783 return -EINVAL; 2784 if (copy_from_user(proc_number, buffer, count)) 2785 return -EFAULT; 2786 p = proc_number; 2787 nr = 0; 2788 len = count; 2789 do { 2790 unsigned int c = *p - '0'; 2791 if (c > 9) 2792 return -EINVAL; 2793 nr = nr * 10 + c; 2794 p++; 2795 } while (--len); 2796 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr; 2797 return count; 2798} 2799 2800static const struct file_operations int_proc_fops = { 2801 .owner = THIS_MODULE, 2802 .write = int_proc_write, 2803}; 2804#endif 2805 2806static struct pcmcia_device_id ray_ids[] = { 2807 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2808 PCMCIA_DEVICE_NULL, 2809}; 2810 2811MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2812 2813static struct pcmcia_driver ray_driver = { 2814 .owner = THIS_MODULE, 2815 .drv = { 2816 .name = "ray_cs", 2817 }, 2818 .probe = ray_probe, 2819 .remove = ray_detach, 2820 .id_table = ray_ids, 2821 .suspend = ray_suspend, 2822 .resume = ray_resume, 2823}; 2824 2825static int __init init_ray_cs(void) 2826{ 2827 int rc; 2828 2829 pr_debug("%s\n", rcsid); 2830 rc = pcmcia_register_driver(&ray_driver); 2831 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2832 rc); 2833 2834#ifdef CONFIG_PROC_FS 2835 proc_mkdir("driver/ray_cs", NULL); 2836 2837 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops); 2838 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops); 2839 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type); 2840 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate); 2841#endif 2842 if (translate != 0) 2843 translate = 1; 2844 return 0; 2845} /* init_ray_cs */ 2846 2847/*===========================================================================*/ 2848 2849static void __exit exit_ray_cs(void) 2850{ 2851 pr_debug("ray_cs: cleanup_module\n"); 2852 2853#ifdef CONFIG_PROC_FS 2854 remove_proc_entry("driver/ray_cs/ray_cs", NULL); 2855 remove_proc_entry("driver/ray_cs/essid", NULL); 2856 remove_proc_entry("driver/ray_cs/net_type", NULL); 2857 remove_proc_entry("driver/ray_cs/translate", NULL); 2858 remove_proc_entry("driver/ray_cs", NULL); 2859#endif 2860 2861 pcmcia_unregister_driver(&ray_driver); 2862} /* exit_ray_cs */ 2863 2864module_init(init_ray_cs); 2865module_exit(exit_ray_cs); 2866 2867/*===========================================================================*/ 2868