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/ieee80211.h> 47 48#include <pcmcia/cistpl.h> 49#include <pcmcia/cisreg.h> 50#include <pcmcia/ds.h> 51 52#include <linux/wireless.h> 53#include <net/iw_handler.h> 54 55#include <asm/io.h> 56#include <asm/byteorder.h> 57#include <asm/uaccess.h> 58 59/* Warning : these stuff will slow down the driver... */ 60#define WIRELESS_SPY /* Enable spying addresses */ 61/* Definitions we need for spy */ 62typedef struct iw_statistics iw_stats; 63typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */ 64 65#include "rayctl.h" 66#include "ray_cs.h" 67 68 69/** Prototypes based on PCMCIA skeleton driver *******************************/ 70static int ray_config(struct pcmcia_device *link); 71static void ray_release(struct pcmcia_device *link); 72static void ray_detach(struct pcmcia_device *p_dev); 73 74/***** Prototypes indicated by device structure ******************************/ 75static int ray_dev_close(struct net_device *dev); 76static int ray_dev_config(struct net_device *dev, struct ifmap *map); 77static struct net_device_stats *ray_get_stats(struct net_device *dev); 78static int ray_dev_init(struct net_device *dev); 79 80static int ray_open(struct net_device *dev); 81static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 82 struct net_device *dev); 83static void set_multicast_list(struct net_device *dev); 84static void ray_update_multi_list(struct net_device *dev, int all); 85static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 86 unsigned char *data, int len); 87static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 88 UCHAR msg_type, unsigned char *data); 89static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len); 90static iw_stats *ray_get_wireless_stats(struct net_device *dev); 91static const struct iw_handler_def ray_handler_def; 92 93/***** Prototypes for raylink functions **************************************/ 94static void authenticate(ray_dev_t *local); 95static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type); 96static void authenticate_timeout(u_long); 97static int get_free_ccs(ray_dev_t *local); 98static int get_free_tx_ccs(ray_dev_t *local); 99static void init_startup_params(ray_dev_t *local); 100static int parse_addr(char *in_str, UCHAR *out); 101static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type); 102static int ray_init(struct net_device *dev); 103static int interrupt_ecf(ray_dev_t *local, int ccs); 104static void ray_reset(struct net_device *dev); 105static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len); 106static void verify_dl_startup(u_long); 107 108/* Prototypes for interrpt time functions **********************************/ 109static irqreturn_t ray_interrupt(int reg, void *dev_id); 110static void clear_interrupt(ray_dev_t *local); 111static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 112 unsigned int pkt_addr, int rx_len); 113static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len); 114static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs); 115static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs); 116static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 117 unsigned int pkt_addr, int rx_len); 118static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 119 unsigned int pkt_addr, int rx_len); 120static void associate(ray_dev_t *local); 121 122/* Card command functions */ 123static int dl_startup_params(struct net_device *dev); 124static void join_net(u_long local); 125static void start_net(u_long local); 126/* void start_net(ray_dev_t *local); */ 127 128/*===========================================================================*/ 129/* Parameters that can be set with 'insmod' */ 130 131/* ADHOC=0, Infrastructure=1 */ 132static int net_type = ADHOC; 133 134/* Hop dwell time in Kus (1024 us units defined by 802.11) */ 135static int hop_dwell = 128; 136 137/* Beacon period in Kus */ 138static int beacon_period = 256; 139 140/* power save mode (0 = off, 1 = save power) */ 141static int psm; 142 143/* String for network's Extended Service Set ID. 32 Characters max */ 144static char *essid; 145 146/* Default to encapsulation unless translation requested */ 147static int translate = 1; 148 149static int country = USA; 150 151static int sniffer; 152 153static int bc; 154 155/* 48 bit physical card address if overriding card's real physical 156 * address is required. Since IEEE 802.11 addresses are 48 bits 157 * like ethernet, an int can't be used, so a string is used. To 158 * allow use of addresses starting with a decimal digit, the first 159 * character must be a letter and will be ignored. This letter is 160 * followed by up to 12 hex digits which are the address. If less 161 * than 12 digits are used, the address will be left filled with 0's. 162 * Note that bit 0 of the first byte is the broadcast bit, and evil 163 * things will happen if it is not 0 in a card address. 164 */ 165static char *phy_addr = NULL; 166 167static unsigned int ray_mem_speed = 500; 168 169/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ 170static struct pcmcia_device *this_device = NULL; 171 172MODULE_AUTHOR("Corey Thomas <corey@world.std.com>"); 173MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver"); 174MODULE_LICENSE("GPL"); 175 176module_param(net_type, int, 0); 177module_param(hop_dwell, int, 0); 178module_param(beacon_period, int, 0); 179module_param(psm, int, 0); 180module_param(essid, charp, 0); 181module_param(translate, int, 0); 182module_param(country, int, 0); 183module_param(sniffer, int, 0); 184module_param(bc, int, 0); 185module_param(phy_addr, charp, 0); 186module_param(ray_mem_speed, int, 0); 187 188static const UCHAR b5_default_startup_parms[] = { 189 0, 0, /* Adhoc station */ 190 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 191 0, 0, 0, 0, 0, 0, 0, 0, 192 0, 0, 0, 0, 0, 0, 0, 0, 193 0, 0, 0, 0, 0, 0, 0, 0, 194 1, 0, /* Active scan, CA Mode */ 195 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 196 0x7f, 0xff, /* Frag threshold */ 197 0x00, 0x80, /* Hop time 128 Kus */ 198 0x01, 0x00, /* Beacon period 256 Kus */ 199 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 200 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */ 201 0x7f, 0xff, /* RTS threshold */ 202 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */ 203 0x05, /* assoc resp timeout thresh */ 204 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */ 205 0, /* Promiscuous mode */ 206 0x0c, 0x0bd, /* Unique word */ 207 0x32, /* Slot time */ 208 0xff, 0xff, /* roam-low snr, low snr count */ 209 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 210 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */ 211/* b4 - b5 differences start here */ 212 0x00, 0x3f, /* CW max */ 213 0x00, 0x0f, /* CW min */ 214 0x04, 0x08, /* Noise gain, limit offset */ 215 0x28, 0x28, /* det rssi, med busy offsets */ 216 7, /* det sync thresh */ 217 0, 2, 2, /* test mode, min, max */ 218 0, /* allow broadcast SSID probe resp */ 219 0, 0, /* privacy must start, can join */ 220 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */ 221}; 222 223static const UCHAR b4_default_startup_parms[] = { 224 0, 0, /* Adhoc station */ 225 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 226 0, 0, 0, 0, 0, 0, 0, 0, 227 0, 0, 0, 0, 0, 0, 0, 0, 228 0, 0, 0, 0, 0, 0, 0, 0, 229 1, 0, /* Active scan, CA Mode */ 230 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 231 0x7f, 0xff, /* Frag threshold */ 232 0x02, 0x00, /* Hop time */ 233 0x00, 0x01, /* Beacon period */ 234 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 235 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */ 236 0x7f, 0xff, /* RTS threshold */ 237 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */ 238 0x05, /* assoc resp timeout thresh */ 239 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */ 240 0, /* Promiscuous mode */ 241 0x0c, 0x0bd, /* Unique word */ 242 0x4e, /* Slot time (TBD seems wrong) */ 243 0xff, 0xff, /* roam-low snr, low snr count */ 244 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 245 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */ 246/* b4 - b5 differences start here */ 247 0x3f, 0x0f, /* CW max, min */ 248 0x04, 0x08, /* Noise gain, limit offset */ 249 0x28, 0x28, /* det rssi, med busy offsets */ 250 7, /* det sync thresh */ 251 0, 2, 2 /* test mode, min, max */ 252}; 253 254/*===========================================================================*/ 255static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; 256 257static const char hop_pattern_length[] = { 1, 258 USA_HOP_MOD, EUROPE_HOP_MOD, 259 JAPAN_HOP_MOD, KOREA_HOP_MOD, 260 SPAIN_HOP_MOD, FRANCE_HOP_MOD, 261 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD, 262 JAPAN_TEST_HOP_MOD 263}; 264 265static const char rcsid[] = 266 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; 267 268static const struct net_device_ops ray_netdev_ops = { 269 .ndo_init = ray_dev_init, 270 .ndo_open = ray_open, 271 .ndo_stop = ray_dev_close, 272 .ndo_start_xmit = ray_dev_start_xmit, 273 .ndo_set_config = ray_dev_config, 274 .ndo_get_stats = ray_get_stats, 275 .ndo_set_rx_mode = set_multicast_list, 276 .ndo_change_mtu = eth_change_mtu, 277 .ndo_set_mac_address = eth_mac_addr, 278 .ndo_validate_addr = eth_validate_addr, 279}; 280 281static int ray_probe(struct pcmcia_device *p_dev) 282{ 283 ray_dev_t *local; 284 struct net_device *dev; 285 286 dev_dbg(&p_dev->dev, "ray_attach()\n"); 287 288 /* Allocate space for private device-specific data */ 289 dev = alloc_etherdev(sizeof(ray_dev_t)); 290 if (!dev) 291 goto fail_alloc_dev; 292 293 local = netdev_priv(dev); 294 local->finder = p_dev; 295 296 /* The io structure describes IO port mapping. None used here */ 297 p_dev->resource[0]->end = 0; 298 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 299 300 /* General socket configuration */ 301 p_dev->config_flags |= CONF_ENABLE_IRQ; 302 p_dev->config_index = 1; 303 304 p_dev->priv = dev; 305 306 local->finder = p_dev; 307 local->card_status = CARD_INSERTED; 308 local->authentication_state = UNAUTHENTICATED; 309 local->num_multi = 0; 310 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 311 p_dev, dev, local, &ray_interrupt); 312 313 /* Raylink entries in the device structure */ 314 dev->netdev_ops = &ray_netdev_ops; 315 dev->wireless_handlers = &ray_handler_def; 316#ifdef WIRELESS_SPY 317 local->wireless_data.spy_data = &local->spy_data; 318 dev->wireless_data = &local->wireless_data; 319#endif /* WIRELESS_SPY */ 320 321 322 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 323 netif_stop_queue(dev); 324 325 init_timer(&local->timer); 326 327 this_device = p_dev; 328 return ray_config(p_dev); 329 330fail_alloc_dev: 331 return -ENOMEM; 332} /* ray_attach */ 333 334static void ray_detach(struct pcmcia_device *link) 335{ 336 struct net_device *dev; 337 ray_dev_t *local; 338 339 dev_dbg(&link->dev, "ray_detach\n"); 340 341 this_device = NULL; 342 dev = link->priv; 343 344 ray_release(link); 345 346 local = netdev_priv(dev); 347 del_timer(&local->timer); 348 349 if (link->priv) { 350 unregister_netdev(dev); 351 free_netdev(dev); 352 } 353 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 354} /* ray_detach */ 355 356#define MAX_TUPLE_SIZE 128 357static int ray_config(struct pcmcia_device *link) 358{ 359 int ret = 0; 360 int i; 361 struct net_device *dev = (struct net_device *)link->priv; 362 ray_dev_t *local = netdev_priv(dev); 363 364 dev_dbg(&link->dev, "ray_config\n"); 365 366 /* Determine card type and firmware version */ 367 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 368 link->prod_id[0] ? link->prod_id[0] : " ", 369 link->prod_id[1] ? link->prod_id[1] : " ", 370 link->prod_id[2] ? link->prod_id[2] : " ", 371 link->prod_id[3] ? link->prod_id[3] : " "); 372 373 /* Now allocate an interrupt line. Note that this does not 374 actually assign a handler to the interrupt. 375 */ 376 ret = pcmcia_request_irq(link, ray_interrupt); 377 if (ret) 378 goto failed; 379 dev->irq = link->irq; 380 381 ret = pcmcia_enable_device(link); 382 if (ret) 383 goto failed; 384 385/*** Set up 32k window for shared memory (transmit and control) ************/ 386 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 387 link->resource[2]->start = 0; 388 link->resource[2]->end = 0x8000; 389 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); 390 if (ret) 391 goto failed; 392 ret = pcmcia_map_mem_page(link, link->resource[2], 0); 393 if (ret) 394 goto failed; 395 local->sram = ioremap(link->resource[2]->start, 396 resource_size(link->resource[2])); 397 398/*** Set up 16k window for shared memory (receive buffer) ***************/ 399 link->resource[3]->flags |= 400 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 401 link->resource[3]->start = 0; 402 link->resource[3]->end = 0x4000; 403 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); 404 if (ret) 405 goto failed; 406 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); 407 if (ret) 408 goto failed; 409 local->rmem = ioremap(link->resource[3]->start, 410 resource_size(link->resource[3])); 411 412/*** Set up window for attribute memory ***********************************/ 413 link->resource[4]->flags |= 414 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 415 link->resource[4]->start = 0; 416 link->resource[4]->end = 0x1000; 417 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); 418 if (ret) 419 goto failed; 420 ret = pcmcia_map_mem_page(link, link->resource[4], 0); 421 if (ret) 422 goto failed; 423 local->amem = ioremap(link->resource[4]->start, 424 resource_size(link->resource[4])); 425 426 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 427 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 428 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 429 if (ray_init(dev) < 0) { 430 ray_release(link); 431 return -ENODEV; 432 } 433 434 SET_NETDEV_DEV(dev, &link->dev); 435 i = register_netdev(dev); 436 if (i != 0) { 437 printk("ray_config register_netdev() failed\n"); 438 ray_release(link); 439 return i; 440 } 441 442 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 443 dev->name, dev->irq, dev->dev_addr); 444 445 return 0; 446 447failed: 448 ray_release(link); 449 return -ENODEV; 450} /* ray_config */ 451 452static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 453{ 454 return dev->sram + CCS_BASE; 455} 456 457static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 458{ 459 /* 460 * This looks nonsensical, since there is a separate 461 * RCS_BASE. But the difference between a "struct rcs" 462 * and a "struct ccs" ends up being in the _index_ off 463 * the base, so the base pointer is the same for both 464 * ccs/rcs. 465 */ 466 return dev->sram + CCS_BASE; 467} 468 469/*===========================================================================*/ 470static int ray_init(struct net_device *dev) 471{ 472 int i; 473 UCHAR *p; 474 struct ccs __iomem *pccs; 475 ray_dev_t *local = netdev_priv(dev); 476 struct pcmcia_device *link = local->finder; 477 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); 478 if (!(pcmcia_dev_present(link))) { 479 dev_dbg(&link->dev, "ray_init - device not present\n"); 480 return -1; 481 } 482 483 local->net_type = net_type; 484 local->sta_type = TYPE_STA; 485 486 /* Copy the startup results to local memory */ 487 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE, 488 sizeof(struct startup_res_6)); 489 490 /* Check Power up test status and get mac address from card */ 491 if (local->startup_res.startup_word != 0x80) { 492 printk(KERN_INFO "ray_init ERROR card status = %2x\n", 493 local->startup_res.startup_word); 494 local->card_status = CARD_INIT_ERROR; 495 return -1; 496 } 497 498 local->fw_ver = local->startup_res.firmware_version[0]; 499 local->fw_bld = local->startup_res.firmware_version[1]; 500 local->fw_var = local->startup_res.firmware_version[2]; 501 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver, 502 local->fw_bld); 503 504 local->tib_length = 0x20; 505 if ((local->fw_ver == 5) && (local->fw_bld >= 30)) 506 local->tib_length = local->startup_res.tib_length; 507 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length); 508 /* Initialize CCS's to buffer free state */ 509 pccs = ccs_base(local); 510 for (i = 0; i < NUMBER_OF_CCS; i++) { 511 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 512 } 513 init_startup_params(local); 514 515 /* copy mac address to startup parameters */ 516 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) { 517 p = local->sparm.b4.a_mac_addr; 518 } else { 519 memcpy(&local->sparm.b4.a_mac_addr, 520 &local->startup_res.station_addr, ADDRLEN); 521 p = local->sparm.b4.a_mac_addr; 522 } 523 524 clear_interrupt(local); /* Clear any interrupt from the card */ 525 local->card_status = CARD_AWAITING_PARAM; 526 dev_dbg(&link->dev, "ray_init ending\n"); 527 return 0; 528} /* ray_init */ 529 530/*===========================================================================*/ 531/* Download startup parameters to the card and command it to read them */ 532static int dl_startup_params(struct net_device *dev) 533{ 534 int ccsindex; 535 ray_dev_t *local = netdev_priv(dev); 536 struct ccs __iomem *pccs; 537 struct pcmcia_device *link = local->finder; 538 539 dev_dbg(&link->dev, "dl_startup_params entered\n"); 540 if (!(pcmcia_dev_present(link))) { 541 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 542 return -1; 543 } 544 545 /* Copy parameters to host to ECF area */ 546 if (local->fw_ver == 0x55) 547 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 548 sizeof(struct b4_startup_params)); 549 else 550 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 551 sizeof(struct b5_startup_params)); 552 553 /* Fill in the CCS fields for the ECF */ 554 if ((ccsindex = get_free_ccs(local)) < 0) 555 return -1; 556 local->dl_param_ccs = ccsindex; 557 pccs = ccs_base(local) + ccsindex; 558 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 559 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 560 local->dl_param_ccs); 561 /* Interrupt the firmware to process the command */ 562 if (interrupt_ecf(local, ccsindex)) { 563 printk(KERN_INFO "ray dl_startup_params failed - " 564 "ECF not ready for intr\n"); 565 local->card_status = CARD_DL_PARAM_ERROR; 566 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 567 return -2; 568 } 569 local->card_status = CARD_DL_PARAM; 570 /* Start kernel timer to wait for dl startup to complete. */ 571 local->timer.expires = jiffies + HZ / 2; 572 local->timer.data = (long)local; 573 local->timer.function = verify_dl_startup; 574 add_timer(&local->timer); 575 dev_dbg(&link->dev, 576 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 577 return 0; 578} /* dl_startup_params */ 579 580/*===========================================================================*/ 581static void init_startup_params(ray_dev_t *local) 582{ 583 int i; 584 585 if (country > JAPAN_TEST) 586 country = USA; 587 else if (country < USA) 588 country = USA; 589 /* structure for hop time and beacon period is defined here using 590 * New 802.11D6.1 format. Card firmware is still using old format 591 * until version 6. 592 * Before After 593 * a_hop_time ms byte a_hop_time ms byte 594 * a_hop_time 2s byte a_hop_time ls byte 595 * a_hop_time ls byte a_beacon_period ms byte 596 * a_beacon_period a_beacon_period ls byte 597 * 598 * a_hop_time = uS a_hop_time = KuS 599 * a_beacon_period = hops a_beacon_period = KuS 600 *//* 64ms = 010000 */ 601 if (local->fw_ver == 0x55) { 602 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms, 603 sizeof(struct b4_startup_params)); 604 /* Translate sane kus input values to old build 4/5 format */ 605 /* i = hop time in uS truncated to 3 bytes */ 606 i = (hop_dwell * 1024) & 0xffffff; 607 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 608 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 609 local->sparm.b4.a_beacon_period[0] = 0; 610 local->sparm.b4.a_beacon_period[1] = 611 ((beacon_period / hop_dwell) - 1) & 0xff; 612 local->sparm.b4.a_curr_country_code = country; 613 local->sparm.b4.a_hop_pattern_length = 614 hop_pattern_length[(int)country] - 1; 615 if (bc) { 616 local->sparm.b4.a_ack_timeout = 0x50; 617 local->sparm.b4.a_sifs = 0x3f; 618 } 619 } else { /* Version 5 uses real kus values */ 620 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 621 sizeof(struct b5_startup_params)); 622 623 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 624 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 625 local->sparm.b5.a_beacon_period[0] = 626 (beacon_period >> 8) & 0xff; 627 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 628 if (psm) 629 local->sparm.b5.a_power_mgt_state = 1; 630 local->sparm.b5.a_curr_country_code = country; 631 local->sparm.b5.a_hop_pattern_length = 632 hop_pattern_length[(int)country]; 633 } 634 635 local->sparm.b4.a_network_type = net_type & 0x01; 636 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 637 638 if (essid != NULL) 639 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 640} /* init_startup_params */ 641 642/*===========================================================================*/ 643static void verify_dl_startup(u_long data) 644{ 645 ray_dev_t *local = (ray_dev_t *) data; 646 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 647 UCHAR status; 648 struct pcmcia_device *link = local->finder; 649 650 if (!(pcmcia_dev_present(link))) { 651 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 652 return; 653 } 654#if 0 655 { 656 int i; 657 printk(KERN_DEBUG 658 "verify_dl_startup parameters sent via ccs %d:\n", 659 local->dl_param_ccs); 660 for (i = 0; i < sizeof(struct b5_startup_params); i++) { 661 printk(" %2x", 662 (unsigned int)readb(local->sram + 663 HOST_TO_ECF_BASE + i)); 664 } 665 printk("\n"); 666 } 667#endif 668 669 status = readb(&pccs->buffer_status); 670 if (status != CCS_BUFFER_FREE) { 671 printk(KERN_INFO 672 "Download startup params failed. Status = %d\n", 673 status); 674 local->card_status = CARD_DL_PARAM_ERROR; 675 return; 676 } 677 if (local->sparm.b4.a_network_type == ADHOC) 678 start_net((u_long) local); 679 else 680 join_net((u_long) local); 681} /* end verify_dl_startup */ 682 683/*===========================================================================*/ 684/* Command card to start a network */ 685static void start_net(u_long data) 686{ 687 ray_dev_t *local = (ray_dev_t *) data; 688 struct ccs __iomem *pccs; 689 int ccsindex; 690 struct pcmcia_device *link = local->finder; 691 if (!(pcmcia_dev_present(link))) { 692 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 693 return; 694 } 695 /* Fill in the CCS fields for the ECF */ 696 if ((ccsindex = get_free_ccs(local)) < 0) 697 return; 698 pccs = ccs_base(local) + ccsindex; 699 writeb(CCS_START_NETWORK, &pccs->cmd); 700 writeb(0, &pccs->var.start_network.update_param); 701 /* Interrupt the firmware to process the command */ 702 if (interrupt_ecf(local, ccsindex)) { 703 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 704 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 705 return; 706 } 707 local->card_status = CARD_DOING_ACQ; 708} /* end start_net */ 709 710/*===========================================================================*/ 711/* Command card to join a network */ 712static void join_net(u_long data) 713{ 714 ray_dev_t *local = (ray_dev_t *) data; 715 716 struct ccs __iomem *pccs; 717 int ccsindex; 718 struct pcmcia_device *link = local->finder; 719 720 if (!(pcmcia_dev_present(link))) { 721 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 722 return; 723 } 724 /* Fill in the CCS fields for the ECF */ 725 if ((ccsindex = get_free_ccs(local)) < 0) 726 return; 727 pccs = ccs_base(local) + ccsindex; 728 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 729 writeb(0, &pccs->var.join_network.update_param); 730 writeb(0, &pccs->var.join_network.net_initiated); 731 /* Interrupt the firmware to process the command */ 732 if (interrupt_ecf(local, ccsindex)) { 733 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 734 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 735 return; 736 } 737 local->card_status = CARD_DOING_ACQ; 738} 739 740 741static void ray_release(struct pcmcia_device *link) 742{ 743 struct net_device *dev = link->priv; 744 ray_dev_t *local = netdev_priv(dev); 745 746 dev_dbg(&link->dev, "ray_release\n"); 747 748 del_timer(&local->timer); 749 750 iounmap(local->sram); 751 iounmap(local->rmem); 752 iounmap(local->amem); 753 pcmcia_disable_device(link); 754 755 dev_dbg(&link->dev, "ray_release ending\n"); 756} 757 758static int ray_suspend(struct pcmcia_device *link) 759{ 760 struct net_device *dev = link->priv; 761 762 if (link->open) 763 netif_device_detach(dev); 764 765 return 0; 766} 767 768static int ray_resume(struct pcmcia_device *link) 769{ 770 struct net_device *dev = link->priv; 771 772 if (link->open) { 773 ray_reset(dev); 774 netif_device_attach(dev); 775 } 776 777 return 0; 778} 779 780/*===========================================================================*/ 781static int ray_dev_init(struct net_device *dev) 782{ 783#ifdef RAY_IMMEDIATE_INIT 784 int i; 785#endif /* RAY_IMMEDIATE_INIT */ 786 ray_dev_t *local = netdev_priv(dev); 787 struct pcmcia_device *link = local->finder; 788 789 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 790 if (!(pcmcia_dev_present(link))) { 791 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 792 return -1; 793 } 794#ifdef RAY_IMMEDIATE_INIT 795 /* Download startup parameters */ 796 if ((i = dl_startup_params(dev)) < 0) { 797 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 798 "returns 0x%x\n", i); 799 return -1; 800 } 801#else /* RAY_IMMEDIATE_INIT */ 802 /* Postpone the card init so that we can still configure the card, 803 * for example using the Wireless Extensions. The init will happen 804 * in ray_open() - Jean II */ 805 dev_dbg(&link->dev, 806 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 807 local->card_status); 808#endif /* RAY_IMMEDIATE_INIT */ 809 810 /* copy mac and broadcast addresses to linux device */ 811 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN); 812 memset(dev->broadcast, 0xff, ETH_ALEN); 813 814 dev_dbg(&link->dev, "ray_dev_init ending\n"); 815 return 0; 816} 817 818/*===========================================================================*/ 819static int ray_dev_config(struct net_device *dev, struct ifmap *map) 820{ 821 ray_dev_t *local = netdev_priv(dev); 822 struct pcmcia_device *link = local->finder; 823 /* Dummy routine to satisfy device structure */ 824 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 825 if (!(pcmcia_dev_present(link))) { 826 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 827 return -1; 828 } 829 830 return 0; 831} 832 833/*===========================================================================*/ 834static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 835 struct net_device *dev) 836{ 837 ray_dev_t *local = netdev_priv(dev); 838 struct pcmcia_device *link = local->finder; 839 short length = skb->len; 840 841 if (!pcmcia_dev_present(link)) { 842 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 843 dev_kfree_skb(skb); 844 return NETDEV_TX_OK; 845 } 846 847 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 848 if (local->authentication_state == NEED_TO_AUTH) { 849 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 850 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 851 local->authentication_state = AUTHENTICATED; 852 netif_stop_queue(dev); 853 return NETDEV_TX_BUSY; 854 } 855 } 856 857 if (length < ETH_ZLEN) { 858 if (skb_padto(skb, ETH_ZLEN)) 859 return NETDEV_TX_OK; 860 length = ETH_ZLEN; 861 } 862 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 863 case XMIT_NO_CCS: 864 case XMIT_NEED_AUTH: 865 netif_stop_queue(dev); 866 return NETDEV_TX_BUSY; 867 case XMIT_NO_INTR: 868 case XMIT_MSG_BAD: 869 case XMIT_OK: 870 default: 871 dev_kfree_skb(skb); 872 } 873 874 return NETDEV_TX_OK; 875} /* ray_dev_start_xmit */ 876 877/*===========================================================================*/ 878static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 879 UCHAR msg_type) 880{ 881 ray_dev_t *local = netdev_priv(dev); 882 struct ccs __iomem *pccs; 883 int ccsindex; 884 int offset; 885 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 886 short int addr; /* Address of xmit buffer in card space */ 887 888 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 889 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 890 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 891 len); 892 return XMIT_MSG_BAD; 893 } 894 switch (ccsindex = get_free_tx_ccs(local)) { 895 case ECCSBUSY: 896 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 897 case ECCSFULL: 898 pr_debug("ray_hw_xmit No free tx ccs\n"); 899 case ECARDGONE: 900 netif_stop_queue(dev); 901 return XMIT_NO_CCS; 902 default: 903 break; 904 } 905 addr = TX_BUF_BASE + (ccsindex << 11); 906 907 if (msg_type == DATA_TYPE) { 908 local->stats.tx_bytes += len; 909 local->stats.tx_packets++; 910 } 911 912 ptx = local->sram + addr; 913 914 ray_build_header(local, ptx, msg_type, data); 915 if (translate) { 916 offset = translate_frame(local, ptx, data, len); 917 } else { /* Encapsulate frame */ 918 /* TBD TIB length will move address of ptx->var */ 919 memcpy_toio(&ptx->var, data, len); 920 offset = 0; 921 } 922 923 /* fill in the CCS */ 924 pccs = ccs_base(local) + ccsindex; 925 len += TX_HEADER_LENGTH + offset; 926 writeb(CCS_TX_REQUEST, &pccs->cmd); 927 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 928 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 929 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 930 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 931/* TBD still need psm_cam? */ 932 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 933 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 934 writeb(0, &pccs->var.tx_request.antenna); 935 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 936 local->net_default_tx_rate); 937 938 /* Interrupt the firmware to process the command */ 939 if (interrupt_ecf(local, ccsindex)) { 940 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 941/* TBD very inefficient to copy packet to buffer, and then not 942 send it, but the alternative is to queue the messages and that 943 won't be done for a while. Maybe set tbusy until a CCS is free? 944*/ 945 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 946 return XMIT_NO_INTR; 947 } 948 return XMIT_OK; 949} /* end ray_hw_xmit */ 950 951/*===========================================================================*/ 952static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 953 unsigned char *data, int len) 954{ 955 __be16 proto = ((struct ethhdr *)data)->h_proto; 956 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */ 957 pr_debug("ray_cs translate_frame DIX II\n"); 958 /* Copy LLC header to card buffer */ 959 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 960 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 961 (UCHAR *) &proto, 2); 962 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 963 /* This is the selective translation table, only 2 entries */ 964 writeb(0xf8, 965 &((struct snaphdr_t __iomem *)ptx->var)->org[3]); 966 } 967 /* Copy body of ethernet packet without ethernet header */ 968 memcpy_toio((void __iomem *)&ptx->var + 969 sizeof(struct snaphdr_t), data + ETH_HLEN, 970 len - ETH_HLEN); 971 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 972 } else { /* already 802 type, and proto is length */ 973 pr_debug("ray_cs translate_frame 802\n"); 974 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 975 pr_debug("ray_cs translate_frame evil IPX\n"); 976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 977 return 0 - ETH_HLEN; 978 } 979 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 980 return 0 - ETH_HLEN; 981 } 982 /* TBD do other frame types */ 983} /* end translate_frame */ 984 985/*===========================================================================*/ 986static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 987 UCHAR msg_type, unsigned char *data) 988{ 989 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 990/*** IEEE 802.11 Address field assignments ************* 991 TODS FROMDS addr_1 addr_2 addr_3 addr_4 992Adhoc 0 0 dest src (terminal) BSSID N/A 993AP to Terminal 0 1 dest AP(BSSID) source N/A 994Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 995AP to AP 1 1 dest AP src AP dest source 996*******************************************************/ 997 if (local->net_type == ADHOC) { 998 writeb(0, &ptx->mac.frame_ctl_2); 999 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 1000 2 * ADDRLEN); 1001 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 1002 } else { /* infrastructure */ 1003 1004 if (local->sparm.b4.a_acting_as_ap_status) { 1005 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2); 1006 memcpy_toio(ptx->mac.addr_1, 1007 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1008 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6); 1009 memcpy_toio(ptx->mac.addr_3, 1010 ((struct ethhdr *)data)->h_source, ADDRLEN); 1011 } else { /* Terminal */ 1012 1013 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2); 1014 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN); 1015 memcpy_toio(ptx->mac.addr_2, 1016 ((struct ethhdr *)data)->h_source, ADDRLEN); 1017 memcpy_toio(ptx->mac.addr_3, 1018 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1019 } 1020 } 1021} /* end encapsulate_frame */ 1022 1023/*====================================================================*/ 1024 1025/*------------------------------------------------------------------*/ 1026/* 1027 * Wireless Handler : get protocol name 1028 */ 1029static int ray_get_name(struct net_device *dev, struct iw_request_info *info, 1030 union iwreq_data *wrqu, char *extra) 1031{ 1032 strcpy(wrqu->name, "IEEE 802.11-FH"); 1033 return 0; 1034} 1035 1036/*------------------------------------------------------------------*/ 1037/* 1038 * Wireless Handler : set frequency 1039 */ 1040static int ray_set_freq(struct net_device *dev, struct iw_request_info *info, 1041 union iwreq_data *wrqu, char *extra) 1042{ 1043 ray_dev_t *local = netdev_priv(dev); 1044 int err = -EINPROGRESS; /* Call commit handler */ 1045 1046 /* Reject if card is already initialised */ 1047 if (local->card_status != CARD_AWAITING_PARAM) 1048 return -EBUSY; 1049 1050 /* Setting by channel number */ 1051 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0)) 1052 err = -EOPNOTSUPP; 1053 else 1054 local->sparm.b5.a_hop_pattern = wrqu->freq.m; 1055 1056 return err; 1057} 1058 1059/*------------------------------------------------------------------*/ 1060/* 1061 * Wireless Handler : get frequency 1062 */ 1063static int ray_get_freq(struct net_device *dev, struct iw_request_info *info, 1064 union iwreq_data *wrqu, char *extra) 1065{ 1066 ray_dev_t *local = netdev_priv(dev); 1067 1068 wrqu->freq.m = local->sparm.b5.a_hop_pattern; 1069 wrqu->freq.e = 0; 1070 return 0; 1071} 1072 1073/*------------------------------------------------------------------*/ 1074/* 1075 * Wireless Handler : set ESSID 1076 */ 1077static int ray_set_essid(struct net_device *dev, struct iw_request_info *info, 1078 union iwreq_data *wrqu, char *extra) 1079{ 1080 ray_dev_t *local = netdev_priv(dev); 1081 1082 /* Reject if card is already initialised */ 1083 if (local->card_status != CARD_AWAITING_PARAM) 1084 return -EBUSY; 1085 1086 /* Check if we asked for `any' */ 1087 if (wrqu->essid.flags == 0) 1088 /* Corey : can you do that ? */ 1089 return -EOPNOTSUPP; 1090 1091 /* Check the size of the string */ 1092 if (wrqu->essid.length > IW_ESSID_MAX_SIZE) 1093 return -E2BIG; 1094 1095 /* Set the ESSID in the card */ 1096 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE); 1097 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length); 1098 1099 return -EINPROGRESS; /* Call commit handler */ 1100} 1101 1102/*------------------------------------------------------------------*/ 1103/* 1104 * Wireless Handler : get ESSID 1105 */ 1106static int ray_get_essid(struct net_device *dev, struct iw_request_info *info, 1107 union iwreq_data *wrqu, char *extra) 1108{ 1109 ray_dev_t *local = netdev_priv(dev); 1110 1111 /* Get the essid that was set */ 1112 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1113 1114 /* Push it out ! */ 1115 wrqu->essid.length = strlen(extra); 1116 wrqu->essid.flags = 1; /* active */ 1117 1118 return 0; 1119} 1120 1121/*------------------------------------------------------------------*/ 1122/* 1123 * Wireless Handler : get AP address 1124 */ 1125static int ray_get_wap(struct net_device *dev, struct iw_request_info *info, 1126 union iwreq_data *wrqu, char *extra) 1127{ 1128 ray_dev_t *local = netdev_priv(dev); 1129 1130 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN); 1131 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1132 1133 return 0; 1134} 1135 1136/*------------------------------------------------------------------*/ 1137/* 1138 * Wireless Handler : set Bit-Rate 1139 */ 1140static int ray_set_rate(struct net_device *dev, struct iw_request_info *info, 1141 union iwreq_data *wrqu, char *extra) 1142{ 1143 ray_dev_t *local = netdev_priv(dev); 1144 1145 /* Reject if card is already initialised */ 1146 if (local->card_status != CARD_AWAITING_PARAM) 1147 return -EBUSY; 1148 1149 /* Check if rate is in range */ 1150 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000)) 1151 return -EINVAL; 1152 1153 /* Hack for 1.5 Mb/s instead of 2 Mb/s */ 1154 if ((local->fw_ver == 0x55) && /* Please check */ 1155 (wrqu->bitrate.value == 2000000)) 1156 local->net_default_tx_rate = 3; 1157 else 1158 local->net_default_tx_rate = wrqu->bitrate.value / 500000; 1159 1160 return 0; 1161} 1162 1163/*------------------------------------------------------------------*/ 1164/* 1165 * Wireless Handler : get Bit-Rate 1166 */ 1167static int ray_get_rate(struct net_device *dev, struct iw_request_info *info, 1168 union iwreq_data *wrqu, char *extra) 1169{ 1170 ray_dev_t *local = netdev_priv(dev); 1171 1172 if (local->net_default_tx_rate == 3) 1173 wrqu->bitrate.value = 2000000; /* Hum... */ 1174 else 1175 wrqu->bitrate.value = local->net_default_tx_rate * 500000; 1176 wrqu->bitrate.fixed = 0; /* We are in auto mode */ 1177 1178 return 0; 1179} 1180 1181/*------------------------------------------------------------------*/ 1182/* 1183 * Wireless Handler : set RTS threshold 1184 */ 1185static int ray_set_rts(struct net_device *dev, struct iw_request_info *info, 1186 union iwreq_data *wrqu, char *extra) 1187{ 1188 ray_dev_t *local = netdev_priv(dev); 1189 int rthr = wrqu->rts.value; 1190 1191 /* Reject if card is already initialised */ 1192 if (local->card_status != CARD_AWAITING_PARAM) 1193 return -EBUSY; 1194 1195 /* if(wrq->u.rts.fixed == 0) we should complain */ 1196 if (wrqu->rts.disabled) 1197 rthr = 32767; 1198 else { 1199 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */ 1200 return -EINVAL; 1201 } 1202 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF; 1203 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF; 1204 1205 return -EINPROGRESS; /* Call commit handler */ 1206} 1207 1208/*------------------------------------------------------------------*/ 1209/* 1210 * Wireless Handler : get RTS threshold 1211 */ 1212static int ray_get_rts(struct net_device *dev, struct iw_request_info *info, 1213 union iwreq_data *wrqu, char *extra) 1214{ 1215 ray_dev_t *local = netdev_priv(dev); 1216 1217 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8) 1218 + local->sparm.b5.a_rts_threshold[1]; 1219 wrqu->rts.disabled = (wrqu->rts.value == 32767); 1220 wrqu->rts.fixed = 1; 1221 1222 return 0; 1223} 1224 1225/*------------------------------------------------------------------*/ 1226/* 1227 * Wireless Handler : set Fragmentation threshold 1228 */ 1229static int ray_set_frag(struct net_device *dev, struct iw_request_info *info, 1230 union iwreq_data *wrqu, char *extra) 1231{ 1232 ray_dev_t *local = netdev_priv(dev); 1233 int fthr = wrqu->frag.value; 1234 1235 /* Reject if card is already initialised */ 1236 if (local->card_status != CARD_AWAITING_PARAM) 1237 return -EBUSY; 1238 1239 /* if(wrq->u.frag.fixed == 0) should complain */ 1240 if (wrqu->frag.disabled) 1241 fthr = 32767; 1242 else { 1243 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */ 1244 return -EINVAL; 1245 } 1246 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF; 1247 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF; 1248 1249 return -EINPROGRESS; /* Call commit handler */ 1250} 1251 1252/*------------------------------------------------------------------*/ 1253/* 1254 * Wireless Handler : get Fragmentation threshold 1255 */ 1256static int ray_get_frag(struct net_device *dev, struct iw_request_info *info, 1257 union iwreq_data *wrqu, char *extra) 1258{ 1259 ray_dev_t *local = netdev_priv(dev); 1260 1261 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8) 1262 + local->sparm.b5.a_frag_threshold[1]; 1263 wrqu->frag.disabled = (wrqu->frag.value == 32767); 1264 wrqu->frag.fixed = 1; 1265 1266 return 0; 1267} 1268 1269/*------------------------------------------------------------------*/ 1270/* 1271 * Wireless Handler : set Mode of Operation 1272 */ 1273static int ray_set_mode(struct net_device *dev, struct iw_request_info *info, 1274 union iwreq_data *wrqu, char *extra) 1275{ 1276 ray_dev_t *local = netdev_priv(dev); 1277 int err = -EINPROGRESS; /* Call commit handler */ 1278 char card_mode = 1; 1279 1280 /* Reject if card is already initialised */ 1281 if (local->card_status != CARD_AWAITING_PARAM) 1282 return -EBUSY; 1283 1284 switch (wrqu->mode) { 1285 case IW_MODE_ADHOC: 1286 card_mode = 0; 1287 /* Fall through */ 1288 case IW_MODE_INFRA: 1289 local->sparm.b5.a_network_type = card_mode; 1290 break; 1291 default: 1292 err = -EINVAL; 1293 } 1294 1295 return err; 1296} 1297 1298/*------------------------------------------------------------------*/ 1299/* 1300 * Wireless Handler : get Mode of Operation 1301 */ 1302static int ray_get_mode(struct net_device *dev, struct iw_request_info *info, 1303 union iwreq_data *wrqu, char *extra) 1304{ 1305 ray_dev_t *local = netdev_priv(dev); 1306 1307 if (local->sparm.b5.a_network_type) 1308 wrqu->mode = IW_MODE_INFRA; 1309 else 1310 wrqu->mode = IW_MODE_ADHOC; 1311 1312 return 0; 1313} 1314 1315/*------------------------------------------------------------------*/ 1316/* 1317 * Wireless Handler : get range info 1318 */ 1319static int ray_get_range(struct net_device *dev, struct iw_request_info *info, 1320 union iwreq_data *wrqu, char *extra) 1321{ 1322 struct iw_range *range = (struct iw_range *)extra; 1323 1324 memset(range, 0, sizeof(struct iw_range)); 1325 1326 /* Set the length (very important for backward compatibility) */ 1327 wrqu->data.length = sizeof(struct iw_range); 1328 1329 /* Set the Wireless Extension versions */ 1330 range->we_version_compiled = WIRELESS_EXT; 1331 range->we_version_source = 9; 1332 1333 /* Set information in the range struct */ 1334 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */ 1335 range->num_channels = hop_pattern_length[(int)country]; 1336 range->num_frequency = 0; 1337 range->max_qual.qual = 0; 1338 range->max_qual.level = 255; /* What's the correct value ? */ 1339 range->max_qual.noise = 255; /* Idem */ 1340 range->num_bitrates = 2; 1341 range->bitrate[0] = 1000000; /* 1 Mb/s */ 1342 range->bitrate[1] = 2000000; /* 2 Mb/s */ 1343 return 0; 1344} 1345 1346/*------------------------------------------------------------------*/ 1347/* 1348 * Wireless Private Handler : set framing mode 1349 */ 1350static int ray_set_framing(struct net_device *dev, struct iw_request_info *info, 1351 union iwreq_data *wrqu, char *extra) 1352{ 1353 translate = *(extra); /* Set framing mode */ 1354 1355 return 0; 1356} 1357 1358/*------------------------------------------------------------------*/ 1359/* 1360 * Wireless Private Handler : get framing mode 1361 */ 1362static int ray_get_framing(struct net_device *dev, struct iw_request_info *info, 1363 union iwreq_data *wrqu, char *extra) 1364{ 1365 *(extra) = translate; 1366 1367 return 0; 1368} 1369 1370/*------------------------------------------------------------------*/ 1371/* 1372 * Wireless Private Handler : get country 1373 */ 1374static int ray_get_country(struct net_device *dev, struct iw_request_info *info, 1375 union iwreq_data *wrqu, char *extra) 1376{ 1377 *(extra) = country; 1378 1379 return 0; 1380} 1381 1382/*------------------------------------------------------------------*/ 1383/* 1384 * Commit handler : called after a bunch of SET operations 1385 */ 1386static int ray_commit(struct net_device *dev, struct iw_request_info *info, 1387 union iwreq_data *wrqu, char *extra) 1388{ 1389 return 0; 1390} 1391 1392/*------------------------------------------------------------------*/ 1393/* 1394 * Stats handler : return Wireless Stats 1395 */ 1396static iw_stats *ray_get_wireless_stats(struct net_device *dev) 1397{ 1398 ray_dev_t *local = netdev_priv(dev); 1399 struct pcmcia_device *link = local->finder; 1400 struct status __iomem *p = local->sram + STATUS_BASE; 1401 1402 local->wstats.status = local->card_status; 1403#ifdef WIRELESS_SPY 1404 if ((local->spy_data.spy_number > 0) 1405 && (local->sparm.b5.a_network_type == 0)) { 1406 /* Get it from the first node in spy list */ 1407 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual; 1408 local->wstats.qual.level = local->spy_data.spy_stat[0].level; 1409 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise; 1410 local->wstats.qual.updated = 1411 local->spy_data.spy_stat[0].updated; 1412 } 1413#endif /* WIRELESS_SPY */ 1414 1415 if (pcmcia_dev_present(link)) { 1416 local->wstats.qual.noise = readb(&p->rxnoise); 1417 local->wstats.qual.updated |= 4; 1418 } 1419 1420 return &local->wstats; 1421} /* end ray_get_wireless_stats */ 1422 1423/*------------------------------------------------------------------*/ 1424/* 1425 * Structures to export the Wireless Handlers 1426 */ 1427 1428static const iw_handler ray_handler[] = { 1429 IW_HANDLER(SIOCSIWCOMMIT, ray_commit), 1430 IW_HANDLER(SIOCGIWNAME, ray_get_name), 1431 IW_HANDLER(SIOCSIWFREQ, ray_set_freq), 1432 IW_HANDLER(SIOCGIWFREQ, ray_get_freq), 1433 IW_HANDLER(SIOCSIWMODE, ray_set_mode), 1434 IW_HANDLER(SIOCGIWMODE, ray_get_mode), 1435 IW_HANDLER(SIOCGIWRANGE, ray_get_range), 1436#ifdef WIRELESS_SPY 1437 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1438 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1439 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1440 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1441#endif /* WIRELESS_SPY */ 1442 IW_HANDLER(SIOCGIWAP, ray_get_wap), 1443 IW_HANDLER(SIOCSIWESSID, ray_set_essid), 1444 IW_HANDLER(SIOCGIWESSID, ray_get_essid), 1445 IW_HANDLER(SIOCSIWRATE, ray_set_rate), 1446 IW_HANDLER(SIOCGIWRATE, ray_get_rate), 1447 IW_HANDLER(SIOCSIWRTS, ray_set_rts), 1448 IW_HANDLER(SIOCGIWRTS, ray_get_rts), 1449 IW_HANDLER(SIOCSIWFRAG, ray_set_frag), 1450 IW_HANDLER(SIOCGIWFRAG, ray_get_frag), 1451}; 1452 1453#define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */ 1454#define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */ 1455#define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */ 1456 1457static const iw_handler ray_private_handler[] = { 1458 [0] = ray_set_framing, 1459 [1] = ray_get_framing, 1460 [3] = ray_get_country, 1461}; 1462 1463static const struct iw_priv_args ray_private_args[] = { 1464/* cmd, set_args, get_args, name */ 1465 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, 1466 "set_framing"}, 1467 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1468 "get_framing"}, 1469 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1470 "get_country"}, 1471}; 1472 1473static const struct iw_handler_def ray_handler_def = { 1474 .num_standard = ARRAY_SIZE(ray_handler), 1475 .num_private = ARRAY_SIZE(ray_private_handler), 1476 .num_private_args = ARRAY_SIZE(ray_private_args), 1477 .standard = ray_handler, 1478 .private = ray_private_handler, 1479 .private_args = ray_private_args, 1480 .get_wireless_stats = ray_get_wireless_stats, 1481}; 1482 1483/*===========================================================================*/ 1484static int ray_open(struct net_device *dev) 1485{ 1486 ray_dev_t *local = netdev_priv(dev); 1487 struct pcmcia_device *link; 1488 link = local->finder; 1489 1490 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name); 1491 1492 if (link->open == 0) 1493 local->num_multi = 0; 1494 link->open++; 1495 1496 /* If the card is not started, time to start it ! - Jean II */ 1497 if (local->card_status == CARD_AWAITING_PARAM) { 1498 int i; 1499 1500 dev_dbg(&link->dev, "ray_open: doing init now !\n"); 1501 1502 /* Download startup parameters */ 1503 if ((i = dl_startup_params(dev)) < 0) { 1504 printk(KERN_INFO 1505 "ray_dev_init dl_startup_params failed - " 1506 "returns 0x%x\n", i); 1507 return -1; 1508 } 1509 } 1510 1511 if (sniffer) 1512 netif_stop_queue(dev); 1513 else 1514 netif_start_queue(dev); 1515 1516 dev_dbg(&link->dev, "ray_open ending\n"); 1517 return 0; 1518} /* end ray_open */ 1519 1520/*===========================================================================*/ 1521static int ray_dev_close(struct net_device *dev) 1522{ 1523 ray_dev_t *local = netdev_priv(dev); 1524 struct pcmcia_device *link; 1525 link = local->finder; 1526 1527 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name); 1528 1529 link->open--; 1530 netif_stop_queue(dev); 1531 1532 /* In here, we should stop the hardware (stop card from beeing active) 1533 * and set local->card_status to CARD_AWAITING_PARAM, so that while the 1534 * card is closed we can chage its configuration. 1535 * Probably also need a COR reset to get sane state - Jean II */ 1536 1537 return 0; 1538} /* end ray_dev_close */ 1539 1540/*===========================================================================*/ 1541static void ray_reset(struct net_device *dev) 1542{ 1543 pr_debug("ray_reset entered\n"); 1544} 1545 1546/*===========================================================================*/ 1547/* Cause a firmware interrupt if it is ready for one */ 1548/* Return nonzero if not ready */ 1549static int interrupt_ecf(ray_dev_t *local, int ccs) 1550{ 1551 int i = 50; 1552 struct pcmcia_device *link = local->finder; 1553 1554 if (!(pcmcia_dev_present(link))) { 1555 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n"); 1556 return -1; 1557 } 1558 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs); 1559 1560 while (i && 1561 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & 1562 ECF_INTR_SET)) 1563 i--; 1564 if (i == 0) { 1565 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n"); 1566 return -1; 1567 } 1568 /* Fill the mailbox, then kick the card */ 1569 writeb(ccs, local->sram + SCB_BASE); 1570 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET); 1571 return 0; 1572} /* interrupt_ecf */ 1573 1574/*===========================================================================*/ 1575/* Get next free transmit CCS */ 1576/* Return - index of current tx ccs */ 1577static int get_free_tx_ccs(ray_dev_t *local) 1578{ 1579 int i; 1580 struct ccs __iomem *pccs = ccs_base(local); 1581 struct pcmcia_device *link = local->finder; 1582 1583 if (!(pcmcia_dev_present(link))) { 1584 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n"); 1585 return ECARDGONE; 1586 } 1587 1588 if (test_and_set_bit(0, &local->tx_ccs_lock)) { 1589 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n"); 1590 return ECCSBUSY; 1591 } 1592 1593 for (i = 0; i < NUMBER_OF_TX_CCS; i++) { 1594 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1595 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1596 writeb(CCS_END_LIST, &(pccs + i)->link); 1597 local->tx_ccs_lock = 0; 1598 return i; 1599 } 1600 } 1601 local->tx_ccs_lock = 0; 1602 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n"); 1603 return ECCSFULL; 1604} /* get_free_tx_ccs */ 1605 1606/*===========================================================================*/ 1607/* Get next free CCS */ 1608/* Return - index of current ccs */ 1609static int get_free_ccs(ray_dev_t *local) 1610{ 1611 int i; 1612 struct ccs __iomem *pccs = ccs_base(local); 1613 struct pcmcia_device *link = local->finder; 1614 1615 if (!(pcmcia_dev_present(link))) { 1616 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n"); 1617 return ECARDGONE; 1618 } 1619 if (test_and_set_bit(0, &local->ccs_lock)) { 1620 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n"); 1621 return ECCSBUSY; 1622 } 1623 1624 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) { 1625 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1626 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1627 writeb(CCS_END_LIST, &(pccs + i)->link); 1628 local->ccs_lock = 0; 1629 return i; 1630 } 1631 } 1632 local->ccs_lock = 0; 1633 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n"); 1634 return ECCSFULL; 1635} /* get_free_ccs */ 1636 1637/*===========================================================================*/ 1638static void authenticate_timeout(u_long data) 1639{ 1640 ray_dev_t *local = (ray_dev_t *) data; 1641 del_timer(&local->timer); 1642 printk(KERN_INFO "ray_cs Authentication with access point failed" 1643 " - timeout\n"); 1644 join_net((u_long) local); 1645} 1646 1647/*===========================================================================*/ 1648static int parse_addr(char *in_str, UCHAR *out) 1649{ 1650 int len; 1651 int i, j, k; 1652 int status; 1653 1654 if (in_str == NULL) 1655 return 0; 1656 if ((len = strlen(in_str)) < 2) 1657 return 0; 1658 memset(out, 0, ADDRLEN); 1659 1660 status = 1; 1661 j = len - 1; 1662 if (j > 12) 1663 j = 12; 1664 i = 5; 1665 1666 while (j > 0) { 1667 if ((k = hex_to_bin(in_str[j--])) != -1) 1668 out[i] = k; 1669 else 1670 return 0; 1671 1672 if (j == 0) 1673 break; 1674 if ((k = hex_to_bin(in_str[j--])) != -1) 1675 out[i] += k << 4; 1676 else 1677 return 0; 1678 if (!i--) 1679 break; 1680 } 1681 return status; 1682} 1683 1684/*===========================================================================*/ 1685static struct net_device_stats *ray_get_stats(struct net_device *dev) 1686{ 1687 ray_dev_t *local = netdev_priv(dev); 1688 struct pcmcia_device *link = local->finder; 1689 struct status __iomem *p = local->sram + STATUS_BASE; 1690 if (!(pcmcia_dev_present(link))) { 1691 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1692 return &local->stats; 1693 } 1694 if (readb(&p->mrx_overflow_for_host)) { 1695 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1696 writeb(0, &p->mrx_overflow); 1697 writeb(0, &p->mrx_overflow_for_host); 1698 } 1699 if (readb(&p->mrx_checksum_error_for_host)) { 1700 local->stats.rx_crc_errors += 1701 swab16(readw(&p->mrx_checksum_error)); 1702 writeb(0, &p->mrx_checksum_error); 1703 writeb(0, &p->mrx_checksum_error_for_host); 1704 } 1705 if (readb(&p->rx_hec_error_for_host)) { 1706 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1707 writeb(0, &p->rx_hec_error); 1708 writeb(0, &p->rx_hec_error_for_host); 1709 } 1710 return &local->stats; 1711} 1712 1713/*===========================================================================*/ 1714static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1715 int len) 1716{ 1717 ray_dev_t *local = netdev_priv(dev); 1718 struct pcmcia_device *link = local->finder; 1719 int ccsindex; 1720 int i; 1721 struct ccs __iomem *pccs; 1722 1723 if (!(pcmcia_dev_present(link))) { 1724 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1725 return; 1726 } 1727 1728 if ((ccsindex = get_free_ccs(local)) < 0) { 1729 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1730 return; 1731 } 1732 pccs = ccs_base(local) + ccsindex; 1733 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1734 writeb(objid, &pccs->var.update_param.object_id); 1735 writeb(1, &pccs->var.update_param.number_objects); 1736 writeb(0, &pccs->var.update_param.failure_cause); 1737 for (i = 0; i < len; i++) { 1738 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1739 } 1740 /* Interrupt the firmware to process the command */ 1741 if (interrupt_ecf(local, ccsindex)) { 1742 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1743 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1744 } 1745} 1746 1747/*===========================================================================*/ 1748static void ray_update_multi_list(struct net_device *dev, int all) 1749{ 1750 int ccsindex; 1751 struct ccs __iomem *pccs; 1752 ray_dev_t *local = netdev_priv(dev); 1753 struct pcmcia_device *link = local->finder; 1754 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1755 1756 if (!(pcmcia_dev_present(link))) { 1757 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1758 return; 1759 } else 1760 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1761 if ((ccsindex = get_free_ccs(local)) < 0) { 1762 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1763 return; 1764 } 1765 pccs = ccs_base(local) + ccsindex; 1766 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1767 1768 if (all) { 1769 writeb(0xff, &pccs->var); 1770 local->num_multi = 0xff; 1771 } else { 1772 struct netdev_hw_addr *ha; 1773 int i = 0; 1774 1775 /* Copy the kernel's list of MC addresses to card */ 1776 netdev_for_each_mc_addr(ha, dev) { 1777 memcpy_toio(p, ha->addr, ETH_ALEN); 1778 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n", 1779 ha->addr); 1780 p += ETH_ALEN; 1781 i++; 1782 } 1783 if (i > 256 / ADDRLEN) 1784 i = 256 / ADDRLEN; 1785 writeb((UCHAR) i, &pccs->var); 1786 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1787 /* Interrupt the firmware to process the command */ 1788 local->num_multi = i; 1789 } 1790 if (interrupt_ecf(local, ccsindex)) { 1791 dev_dbg(&link->dev, 1792 "ray_cs update_multi failed - ECF not ready for intr\n"); 1793 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1794 } 1795} /* end ray_update_multi_list */ 1796 1797/*===========================================================================*/ 1798static void set_multicast_list(struct net_device *dev) 1799{ 1800 ray_dev_t *local = netdev_priv(dev); 1801 UCHAR promisc; 1802 1803 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1804 1805 if (dev->flags & IFF_PROMISC) { 1806 if (local->sparm.b5.a_promiscuous_mode == 0) { 1807 pr_debug("ray_cs set_multicast_list promisc on\n"); 1808 local->sparm.b5.a_promiscuous_mode = 1; 1809 promisc = 1; 1810 ray_update_parm(dev, OBJID_promiscuous_mode, 1811 &promisc, sizeof(promisc)); 1812 } 1813 } else { 1814 if (local->sparm.b5.a_promiscuous_mode == 1) { 1815 pr_debug("ray_cs set_multicast_list promisc off\n"); 1816 local->sparm.b5.a_promiscuous_mode = 0; 1817 promisc = 0; 1818 ray_update_parm(dev, OBJID_promiscuous_mode, 1819 &promisc, sizeof(promisc)); 1820 } 1821 } 1822 1823 if (dev->flags & IFF_ALLMULTI) 1824 ray_update_multi_list(dev, 1); 1825 else { 1826 if (local->num_multi != netdev_mc_count(dev)) 1827 ray_update_multi_list(dev, 0); 1828 } 1829} /* end set_multicast_list */ 1830 1831/*============================================================================= 1832 * All routines below here are run at interrupt time. 1833=============================================================================*/ 1834static irqreturn_t ray_interrupt(int irq, void *dev_id) 1835{ 1836 struct net_device *dev = (struct net_device *)dev_id; 1837 struct pcmcia_device *link; 1838 ray_dev_t *local; 1839 struct ccs __iomem *pccs; 1840 struct rcs __iomem *prcs; 1841 UCHAR rcsindex; 1842 UCHAR tmp; 1843 UCHAR cmd; 1844 UCHAR status; 1845 1846 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1847 return IRQ_NONE; 1848 1849 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1850 1851 local = netdev_priv(dev); 1852 link = (struct pcmcia_device *)local->finder; 1853 if (!pcmcia_dev_present(link)) { 1854 pr_debug( 1855 "ray_cs interrupt from device not present or suspended.\n"); 1856 return IRQ_NONE; 1857 } 1858 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1859 1860 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1861 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1862 clear_interrupt(local); 1863 return IRQ_HANDLED; 1864 } 1865 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1866 pccs = ccs_base(local) + rcsindex; 1867 cmd = readb(&pccs->cmd); 1868 status = readb(&pccs->buffer_status); 1869 switch (cmd) { 1870 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1871 del_timer(&local->timer); 1872 if (status == CCS_COMMAND_COMPLETE) { 1873 dev_dbg(&link->dev, 1874 "ray_cs interrupt download_startup_parameters OK\n"); 1875 } else { 1876 dev_dbg(&link->dev, 1877 "ray_cs interrupt download_startup_parameters fail\n"); 1878 } 1879 break; 1880 case CCS_UPDATE_PARAMS: 1881 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1882 if (status != CCS_COMMAND_COMPLETE) { 1883 tmp = 1884 readb(&pccs->var.update_param. 1885 failure_cause); 1886 dev_dbg(&link->dev, 1887 "ray_cs interrupt update params failed - reason %d\n", 1888 tmp); 1889 } 1890 break; 1891 case CCS_REPORT_PARAMS: 1892 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1893 break; 1894 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1895 dev_dbg(&link->dev, 1896 "ray_cs interrupt CCS Update Multicast List done\n"); 1897 break; 1898 case CCS_UPDATE_POWER_SAVINGS_MODE: 1899 dev_dbg(&link->dev, 1900 "ray_cs interrupt update power save mode done\n"); 1901 break; 1902 case CCS_START_NETWORK: 1903 case CCS_JOIN_NETWORK: 1904 if (status == CCS_COMMAND_COMPLETE) { 1905 if (readb 1906 (&pccs->var.start_network.net_initiated) == 1907 1) { 1908 dev_dbg(&link->dev, 1909 "ray_cs interrupt network \"%s\" started\n", 1910 local->sparm.b4.a_current_ess_id); 1911 } else { 1912 dev_dbg(&link->dev, 1913 "ray_cs interrupt network \"%s\" joined\n", 1914 local->sparm.b4.a_current_ess_id); 1915 } 1916 memcpy_fromio(&local->bss_id, 1917 pccs->var.start_network.bssid, 1918 ADDRLEN); 1919 1920 if (local->fw_ver == 0x55) 1921 local->net_default_tx_rate = 3; 1922 else 1923 local->net_default_tx_rate = 1924 readb(&pccs->var.start_network. 1925 net_default_tx_rate); 1926 local->encryption = 1927 readb(&pccs->var.start_network.encryption); 1928 if (!sniffer && (local->net_type == INFRA) 1929 && !(local->sparm.b4.a_acting_as_ap_status)) { 1930 authenticate(local); 1931 } 1932 local->card_status = CARD_ACQ_COMPLETE; 1933 } else { 1934 local->card_status = CARD_ACQ_FAILED; 1935 1936 del_timer(&local->timer); 1937 local->timer.expires = jiffies + HZ * 5; 1938 local->timer.data = (long)local; 1939 if (status == CCS_START_NETWORK) { 1940 dev_dbg(&link->dev, 1941 "ray_cs interrupt network \"%s\" start failed\n", 1942 local->sparm.b4.a_current_ess_id); 1943 local->timer.function = start_net; 1944 } else { 1945 dev_dbg(&link->dev, 1946 "ray_cs interrupt network \"%s\" join failed\n", 1947 local->sparm.b4.a_current_ess_id); 1948 local->timer.function = join_net; 1949 } 1950 add_timer(&local->timer); 1951 } 1952 break; 1953 case CCS_START_ASSOCIATION: 1954 if (status == CCS_COMMAND_COMPLETE) { 1955 local->card_status = CARD_ASSOC_COMPLETE; 1956 dev_dbg(&link->dev, "ray_cs association successful\n"); 1957 } else { 1958 dev_dbg(&link->dev, "ray_cs association failed,\n"); 1959 local->card_status = CARD_ASSOC_FAILED; 1960 join_net((u_long) local); 1961 } 1962 break; 1963 case CCS_TX_REQUEST: 1964 if (status == CCS_COMMAND_COMPLETE) { 1965 dev_dbg(&link->dev, 1966 "ray_cs interrupt tx request complete\n"); 1967 } else { 1968 dev_dbg(&link->dev, 1969 "ray_cs interrupt tx request failed\n"); 1970 } 1971 if (!sniffer) 1972 netif_start_queue(dev); 1973 netif_wake_queue(dev); 1974 break; 1975 case CCS_TEST_MEMORY: 1976 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 1977 break; 1978 case CCS_SHUTDOWN: 1979 dev_dbg(&link->dev, 1980 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 1981 break; 1982 case CCS_DUMP_MEMORY: 1983 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 1984 break; 1985 case CCS_START_TIMER: 1986 dev_dbg(&link->dev, 1987 "ray_cs interrupt DING - raylink timer expired\n"); 1988 break; 1989 default: 1990 dev_dbg(&link->dev, 1991 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 1992 rcsindex, cmd); 1993 } 1994 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 1995 } else { /* It's an RCS */ 1996 1997 prcs = rcs_base(local) + rcsindex; 1998 1999 switch (readb(&prcs->interrupt_id)) { 2000 case PROCESS_RX_PACKET: 2001 ray_rx(dev, local, prcs); 2002 break; 2003 case REJOIN_NET_COMPLETE: 2004 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2005 local->card_status = CARD_ACQ_COMPLETE; 2006 /* do we need to clear tx buffers CCS's? */ 2007 if (local->sparm.b4.a_network_type == ADHOC) { 2008 if (!sniffer) 2009 netif_start_queue(dev); 2010 } else { 2011 memcpy_fromio(&local->bss_id, 2012 prcs->var.rejoin_net_complete. 2013 bssid, ADDRLEN); 2014 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n", 2015 local->bss_id); 2016 if (!sniffer) 2017 authenticate(local); 2018 } 2019 break; 2020 case ROAMING_INITIATED: 2021 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2022 netif_stop_queue(dev); 2023 local->card_status = CARD_DOING_ACQ; 2024 break; 2025 case JAPAN_CALL_SIGN_RXD: 2026 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2027 break; 2028 default: 2029 dev_dbg(&link->dev, 2030 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2031 rcsindex, 2032 (unsigned int)readb(&prcs->interrupt_id)); 2033 break; 2034 } 2035 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2036 } 2037 clear_interrupt(local); 2038 return IRQ_HANDLED; 2039} /* ray_interrupt */ 2040 2041/*===========================================================================*/ 2042static void ray_rx(struct net_device *dev, ray_dev_t *local, 2043 struct rcs __iomem *prcs) 2044{ 2045 int rx_len; 2046 unsigned int pkt_addr; 2047 void __iomem *pmsg; 2048 pr_debug("ray_rx process rx packet\n"); 2049 2050 /* Calculate address of packet within Rx buffer */ 2051 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2052 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2053 /* Length of first packet fragment */ 2054 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2055 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2056 2057 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2058 pmsg = local->rmem + pkt_addr; 2059 switch (readb(pmsg)) { 2060 case DATA_TYPE: 2061 pr_debug("ray_rx data type\n"); 2062 rx_data(dev, prcs, pkt_addr, rx_len); 2063 break; 2064 case AUTHENTIC_TYPE: 2065 pr_debug("ray_rx authentic type\n"); 2066 if (sniffer) 2067 rx_data(dev, prcs, pkt_addr, rx_len); 2068 else 2069 rx_authenticate(local, prcs, pkt_addr, rx_len); 2070 break; 2071 case DEAUTHENTIC_TYPE: 2072 pr_debug("ray_rx deauth type\n"); 2073 if (sniffer) 2074 rx_data(dev, prcs, pkt_addr, rx_len); 2075 else 2076 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2077 break; 2078 case NULL_MSG_TYPE: 2079 pr_debug("ray_cs rx NULL msg\n"); 2080 break; 2081 case BEACON_TYPE: 2082 pr_debug("ray_rx beacon type\n"); 2083 if (sniffer) 2084 rx_data(dev, prcs, pkt_addr, rx_len); 2085 2086 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2087 rx_len < sizeof(struct beacon_rx) ? 2088 rx_len : sizeof(struct beacon_rx)); 2089 2090 local->beacon_rxed = 1; 2091 /* Get the statistics so the card counters never overflow */ 2092 ray_get_stats(dev); 2093 break; 2094 default: 2095 pr_debug("ray_cs unknown pkt type %2x\n", 2096 (unsigned int)readb(pmsg)); 2097 break; 2098 } 2099 2100} /* end ray_rx */ 2101 2102/*===========================================================================*/ 2103static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2104 unsigned int pkt_addr, int rx_len) 2105{ 2106 struct sk_buff *skb = NULL; 2107 struct rcs __iomem *prcslink = prcs; 2108 ray_dev_t *local = netdev_priv(dev); 2109 UCHAR *rx_ptr; 2110 int total_len; 2111 int tmp; 2112#ifdef WIRELESS_SPY 2113 int siglev = local->last_rsl; 2114 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2115#endif 2116 2117 if (!sniffer) { 2118 if (translate) { 2119/* TBD length needs fixing for translated header */ 2120 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2121 rx_len > 2122 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2123 FCS_LEN)) { 2124 pr_debug( 2125 "ray_cs invalid packet length %d received\n", 2126 rx_len); 2127 return; 2128 } 2129 } else { /* encapsulated ethernet */ 2130 2131 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2132 rx_len > 2133 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2134 FCS_LEN)) { 2135 pr_debug( 2136 "ray_cs invalid packet length %d received\n", 2137 rx_len); 2138 return; 2139 } 2140 } 2141 } 2142 pr_debug("ray_cs rx_data packet\n"); 2143 /* If fragmented packet, verify sizes of fragments add up */ 2144 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2145 pr_debug("ray_cs rx'ed fragment\n"); 2146 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2147 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2148 total_len = tmp; 2149 prcslink = prcs; 2150 do { 2151 tmp -= 2152 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2153 << 8) 2154 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2155 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2156 == 0xFF || tmp < 0) 2157 break; 2158 prcslink = rcs_base(local) 2159 + readb(&prcslink->link_field); 2160 } while (1); 2161 2162 if (tmp < 0) { 2163 pr_debug( 2164 "ray_cs rx_data fragment lengths don't add up\n"); 2165 local->stats.rx_dropped++; 2166 release_frag_chain(local, prcs); 2167 return; 2168 } 2169 } else { /* Single unfragmented packet */ 2170 total_len = rx_len; 2171 } 2172 2173 skb = dev_alloc_skb(total_len + 5); 2174 if (skb == NULL) { 2175 pr_debug("ray_cs rx_data could not allocate skb\n"); 2176 local->stats.rx_dropped++; 2177 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2178 release_frag_chain(local, prcs); 2179 return; 2180 } 2181 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2182 2183 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2184 rx_len); 2185 2186/************************/ 2187 /* Reserve enough room for the whole damn packet. */ 2188 rx_ptr = skb_put(skb, total_len); 2189 /* Copy the whole packet to sk_buff */ 2190 rx_ptr += 2191 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2192 /* Get source address */ 2193#ifdef WIRELESS_SPY 2194 skb_copy_from_linear_data_offset(skb, 2195 offsetof(struct mac_header, addr_2), 2196 linksrcaddr, ETH_ALEN); 2197#endif 2198 /* Now, deal with encapsulation/translation/sniffer */ 2199 if (!sniffer) { 2200 if (!translate) { 2201 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2202/* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2203 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2204 } else { 2205 /* Do translation */ 2206 untranslate(local, skb, total_len); 2207 } 2208 } else { /* sniffer mode, so just pass whole packet */ 2209 }; 2210 2211/************************/ 2212 /* Now pick up the rest of the fragments if any */ 2213 tmp = 17; 2214 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2215 prcslink = prcs; 2216 pr_debug("ray_cs rx_data in fragment loop\n"); 2217 do { 2218 prcslink = rcs_base(local) 2219 + 2220 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2221 rx_len = 2222 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2223 << 8) 2224 + 2225 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2226 & RX_BUFF_END; 2227 pkt_addr = 2228 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2229 8) 2230 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2231 & RX_BUFF_END; 2232 2233 rx_ptr += 2234 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2235 2236 } while (tmp-- && 2237 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2238 0xFF); 2239 release_frag_chain(local, prcs); 2240 } 2241 2242 skb->protocol = eth_type_trans(skb, dev); 2243 netif_rx(skb); 2244 local->stats.rx_packets++; 2245 local->stats.rx_bytes += total_len; 2246 2247 /* Gather signal strength per address */ 2248#ifdef WIRELESS_SPY 2249 /* For the Access Point or the node having started the ad-hoc net 2250 * note : ad-hoc work only in some specific configurations, but we 2251 * kludge in ray_get_wireless_stats... */ 2252 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2253 /* Update statistics */ 2254 /*local->wstats.qual.qual = none ? */ 2255 local->wstats.qual.level = siglev; 2256 /*local->wstats.qual.noise = none ? */ 2257 local->wstats.qual.updated = 0x2; 2258 } 2259 /* Now, update the spy stuff */ 2260 { 2261 struct iw_quality wstats; 2262 wstats.level = siglev; 2263 /* wstats.noise = none ? */ 2264 /* wstats.qual = none ? */ 2265 wstats.updated = 0x2; 2266 /* Update spy records */ 2267 wireless_spy_update(dev, linksrcaddr, &wstats); 2268 } 2269#endif /* WIRELESS_SPY */ 2270} /* end rx_data */ 2271 2272/*===========================================================================*/ 2273static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2274{ 2275 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2276 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2277 __be16 type = *(__be16 *) psnap->ethertype; 2278 int delta; 2279 struct ethhdr *peth; 2280 UCHAR srcaddr[ADDRLEN]; 2281 UCHAR destaddr[ADDRLEN]; 2282 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2283 static const UCHAR org_1042[3] = { 0, 0, 0 }; 2284 2285 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2286 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2287 2288#if 0 2289 if { 2290 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", 2291 DUMP_PREFIX_NONE, 16, 1, 2292 skb->data, 64, true); 2293 printk(KERN_DEBUG 2294 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", 2295 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, 2296 psnap->org[0], psnap->org[1], psnap->org[2]); 2297 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data); 2298 } 2299#endif 2300 2301 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2302 /* not a snap type so leave it alone */ 2303 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2304 psnap->dsap, psnap->ssap, psnap->ctrl); 2305 2306 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2307 peth = (struct ethhdr *)(skb->data + delta); 2308 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2309 } else { /* Its a SNAP */ 2310 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2311 /* EtherII and nuke the LLC */ 2312 pr_debug("ray_cs untranslate Bridge encap\n"); 2313 delta = RX_MAC_HEADER_LENGTH 2314 + sizeof(struct snaphdr_t) - ETH_HLEN; 2315 peth = (struct ethhdr *)(skb->data + delta); 2316 peth->h_proto = type; 2317 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2318 switch (ntohs(type)) { 2319 case ETH_P_IPX: 2320 case ETH_P_AARP: 2321 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2322 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2323 peth = (struct ethhdr *)(skb->data + delta); 2324 peth->h_proto = 2325 htons(len - RX_MAC_HEADER_LENGTH); 2326 break; 2327 default: 2328 pr_debug("ray_cs untranslate RFC default\n"); 2329 delta = RX_MAC_HEADER_LENGTH + 2330 sizeof(struct snaphdr_t) - ETH_HLEN; 2331 peth = (struct ethhdr *)(skb->data + delta); 2332 peth->h_proto = type; 2333 break; 2334 } 2335 } else { 2336 printk("ray_cs untranslate very confused by packet\n"); 2337 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2338 peth = (struct ethhdr *)(skb->data + delta); 2339 peth->h_proto = type; 2340 } 2341 } 2342/* TBD reserve skb_reserve(skb, delta); */ 2343 skb_pull(skb, delta); 2344 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2345 skb->data); 2346 memcpy(peth->h_dest, destaddr, ADDRLEN); 2347 memcpy(peth->h_source, srcaddr, ADDRLEN); 2348#if 0 2349 { 2350 int i; 2351 printk(KERN_DEBUG "skb->data after untranslate:"); 2352 for (i = 0; i < 64; i++) 2353 printk("%02x ", skb->data[i]); 2354 printk("\n"); 2355 } 2356#endif 2357} /* end untranslate */ 2358 2359/*===========================================================================*/ 2360/* Copy data from circular receive buffer to PC memory. 2361 * dest = destination address in PC memory 2362 * pkt_addr = source address in receive buffer 2363 * len = length of packet to copy 2364 */ 2365static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2366 int length) 2367{ 2368 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2369 if (wrap_bytes <= 0) { 2370 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2371 } else { /* Packet wrapped in circular buffer */ 2372 2373 memcpy_fromio(dest, local->rmem + pkt_addr, 2374 length - wrap_bytes); 2375 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2376 wrap_bytes); 2377 } 2378 return length; 2379} 2380 2381/*===========================================================================*/ 2382static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2383{ 2384 struct rcs __iomem *prcslink = prcs; 2385 int tmp = 17; 2386 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2387 2388 while (tmp--) { 2389 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2390 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2391 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2392 rcsindex); 2393 break; 2394 } 2395 prcslink = rcs_base(local) + rcsindex; 2396 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2397 } 2398 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2399} 2400 2401/*===========================================================================*/ 2402static void authenticate(ray_dev_t *local) 2403{ 2404 struct pcmcia_device *link = local->finder; 2405 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2406 if (!(pcmcia_dev_present(link))) { 2407 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2408 return; 2409 } 2410 2411 del_timer(&local->timer); 2412 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2413 local->timer.function = join_net; 2414 } else { 2415 local->timer.function = authenticate_timeout; 2416 } 2417 local->timer.expires = jiffies + HZ * 2; 2418 local->timer.data = (long)local; 2419 add_timer(&local->timer); 2420 local->authentication_state = AWAITING_RESPONSE; 2421} /* end authenticate */ 2422 2423/*===========================================================================*/ 2424static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2425 unsigned int pkt_addr, int rx_len) 2426{ 2427 UCHAR buff[256]; 2428 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2429 2430 del_timer(&local->timer); 2431 2432 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2433 /* if we are trying to get authenticated */ 2434 if (local->sparm.b4.a_network_type == ADHOC) { 2435 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n", 2436 msg->var[0], msg->var[1], msg->var[2], msg->var[3], 2437 msg->var[4], msg->var[5]); 2438 if (msg->var[2] == 1) { 2439 pr_debug("ray_cs Sending authentication response.\n"); 2440 if (!build_auth_frame 2441 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2442 local->authentication_state = NEED_TO_AUTH; 2443 memcpy(local->auth_id, msg->mac.addr_2, 2444 ADDRLEN); 2445 } 2446 } 2447 } else { /* Infrastructure network */ 2448 2449 if (local->authentication_state == AWAITING_RESPONSE) { 2450 /* Verify authentication sequence #2 and success */ 2451 if (msg->var[2] == 2) { 2452 if ((msg->var[3] | msg->var[4]) == 0) { 2453 pr_debug("Authentication successful\n"); 2454 local->card_status = CARD_AUTH_COMPLETE; 2455 associate(local); 2456 local->authentication_state = 2457 AUTHENTICATED; 2458 } else { 2459 pr_debug("Authentication refused\n"); 2460 local->card_status = CARD_AUTH_REFUSED; 2461 join_net((u_long) local); 2462 local->authentication_state = 2463 UNAUTHENTICATED; 2464 } 2465 } 2466 } 2467 } 2468 2469} /* end rx_authenticate */ 2470 2471/*===========================================================================*/ 2472static void associate(ray_dev_t *local) 2473{ 2474 struct ccs __iomem *pccs; 2475 struct pcmcia_device *link = local->finder; 2476 struct net_device *dev = link->priv; 2477 int ccsindex; 2478 if (!(pcmcia_dev_present(link))) { 2479 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2480 return; 2481 } 2482 /* If no tx buffers available, return */ 2483 if ((ccsindex = get_free_ccs(local)) < 0) { 2484/* TBD should never be here but... what if we are? */ 2485 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2486 return; 2487 } 2488 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2489 pccs = ccs_base(local) + ccsindex; 2490 /* fill in the CCS */ 2491 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2492 /* Interrupt the firmware to process the command */ 2493 if (interrupt_ecf(local, ccsindex)) { 2494 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2495 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2496 2497 del_timer(&local->timer); 2498 local->timer.expires = jiffies + HZ * 2; 2499 local->timer.data = (long)local; 2500 local->timer.function = join_net; 2501 add_timer(&local->timer); 2502 local->card_status = CARD_ASSOC_FAILED; 2503 return; 2504 } 2505 if (!sniffer) 2506 netif_start_queue(dev); 2507 2508} /* end associate */ 2509 2510/*===========================================================================*/ 2511static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2512 unsigned int pkt_addr, int rx_len) 2513{ 2514/* UCHAR buff[256]; 2515 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2516*/ 2517 pr_debug("Deauthentication frame received\n"); 2518 local->authentication_state = UNAUTHENTICATED; 2519 /* Need to reauthenticate or rejoin depending on reason code */ 2520/* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2521 */ 2522} 2523 2524/*===========================================================================*/ 2525static void clear_interrupt(ray_dev_t *local) 2526{ 2527 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2528} 2529 2530/*===========================================================================*/ 2531#ifdef CONFIG_PROC_FS 2532#define MAXDATA (PAGE_SIZE - 80) 2533 2534static const char *card_status[] = { 2535 "Card inserted - uninitialized", /* 0 */ 2536 "Card not downloaded", /* 1 */ 2537 "Waiting for download parameters", /* 2 */ 2538 "Card doing acquisition", /* 3 */ 2539 "Acquisition complete", /* 4 */ 2540 "Authentication complete", /* 5 */ 2541 "Association complete", /* 6 */ 2542 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2543 "Card init error", /* 11 */ 2544 "Download parameters error", /* 12 */ 2545 "???", /* 13 */ 2546 "Acquisition failed", /* 14 */ 2547 "Authentication refused", /* 15 */ 2548 "Association failed" /* 16 */ 2549}; 2550 2551static const char *nettype[] = { "Adhoc", "Infra " }; 2552static const char *framing[] = { "Encapsulation", "Translation" } 2553 2554; 2555/*===========================================================================*/ 2556static int ray_cs_proc_show(struct seq_file *m, void *v) 2557{ 2558/* Print current values which are not available via other means 2559 * eg ifconfig 2560 */ 2561 int i; 2562 struct pcmcia_device *link; 2563 struct net_device *dev; 2564 ray_dev_t *local; 2565 UCHAR *p; 2566 struct freq_hop_element *pfh; 2567 UCHAR c[33]; 2568 2569 link = this_device; 2570 if (!link) 2571 return 0; 2572 dev = (struct net_device *)link->priv; 2573 if (!dev) 2574 return 0; 2575 local = netdev_priv(dev); 2576 if (!local) 2577 return 0; 2578 2579 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2580 seq_printf(m, "%s\n", rcsid); 2581 /* build 4 does not report version, and field is 0x55 after memtest */ 2582 seq_puts(m, "Firmware version = "); 2583 if (local->fw_ver == 0x55) 2584 seq_puts(m, "4 - Use dump_cis for more details\n"); 2585 else 2586 seq_printf(m, "%2d.%02d.%02d\n", 2587 local->fw_ver, local->fw_bld, local->fw_var); 2588 2589 for (i = 0; i < 32; i++) 2590 c[i] = local->sparm.b5.a_current_ess_id[i]; 2591 c[32] = 0; 2592 seq_printf(m, "%s network ESSID = \"%s\"\n", 2593 nettype[local->sparm.b5.a_network_type], c); 2594 2595 p = local->bss_id; 2596 seq_printf(m, "BSSID = %pM\n", p); 2597 2598 seq_printf(m, "Country code = %d\n", 2599 local->sparm.b5.a_curr_country_code); 2600 2601 i = local->card_status; 2602 if (i < 0) 2603 i = 10; 2604 if (i > 16) 2605 i = 10; 2606 seq_printf(m, "Card status = %s\n", card_status[i]); 2607 2608 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2609 2610 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2611 2612 if (local->beacon_rxed) { 2613 /* Pull some fields out of last beacon received */ 2614 seq_printf(m, "Beacon Interval = %d Kus\n", 2615 local->last_bcn.beacon_intvl[0] 2616 + 256 * local->last_bcn.beacon_intvl[1]); 2617 2618 p = local->last_bcn.elements; 2619 if (p[0] == C_ESSID_ELEMENT_ID) 2620 p += p[1] + 2; 2621 else { 2622 seq_printf(m, 2623 "Parse beacon failed at essid element id = %d\n", 2624 p[0]); 2625 return 0; 2626 } 2627 2628 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2629 seq_puts(m, "Supported rate codes = "); 2630 for (i = 2; i < p[1] + 2; i++) 2631 seq_printf(m, "0x%02x ", p[i]); 2632 seq_putc(m, '\n'); 2633 p += p[1] + 2; 2634 } else { 2635 seq_puts(m, "Parse beacon failed at rates element\n"); 2636 return 0; 2637 } 2638 2639 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2640 pfh = (struct freq_hop_element *)p; 2641 seq_printf(m, "Hop dwell = %d Kus\n", 2642 pfh->dwell_time[0] + 2643 256 * pfh->dwell_time[1]); 2644 seq_printf(m, "Hop set = %d\n", 2645 pfh->hop_set); 2646 seq_printf(m, "Hop pattern = %d\n", 2647 pfh->hop_pattern); 2648 seq_printf(m, "Hop index = %d\n", 2649 pfh->hop_index); 2650 p += p[1] + 2; 2651 } else { 2652 seq_puts(m, 2653 "Parse beacon failed at FH param element\n"); 2654 return 0; 2655 } 2656 } else { 2657 seq_puts(m, "No beacons received\n"); 2658 } 2659 return 0; 2660} 2661 2662static int ray_cs_proc_open(struct inode *inode, struct file *file) 2663{ 2664 return single_open(file, ray_cs_proc_show, NULL); 2665} 2666 2667static const struct file_operations ray_cs_proc_fops = { 2668 .owner = THIS_MODULE, 2669 .open = ray_cs_proc_open, 2670 .read = seq_read, 2671 .llseek = seq_lseek, 2672 .release = single_release, 2673}; 2674#endif 2675/*===========================================================================*/ 2676static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2677{ 2678 int addr; 2679 struct ccs __iomem *pccs; 2680 struct tx_msg __iomem *ptx; 2681 int ccsindex; 2682 2683 /* If no tx buffers available, return */ 2684 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2685 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2686 return -1; 2687 } 2688 2689 pccs = ccs_base(local) + ccsindex; 2690 2691 /* Address in card space */ 2692 addr = TX_BUF_BASE + (ccsindex << 11); 2693 /* fill in the CCS */ 2694 writeb(CCS_TX_REQUEST, &pccs->cmd); 2695 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2696 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2697 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2698 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2699 pccs->var.tx_request.tx_data_length + 1); 2700 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2701 2702 ptx = local->sram + addr; 2703 /* fill in the mac header */ 2704 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2705 writeb(0, &ptx->mac.frame_ctl_2); 2706 2707 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2708 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2709 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2710 2711 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2712 memset_io(ptx->var, 0, 6); 2713 writeb(auth_type & 0xff, ptx->var + 2); 2714 2715 /* Interrupt the firmware to process the command */ 2716 if (interrupt_ecf(local, ccsindex)) { 2717 pr_debug( 2718 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2719 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2720 return -1; 2721 } 2722 return 0; 2723} /* End build_auth_frame */ 2724 2725/*===========================================================================*/ 2726#ifdef CONFIG_PROC_FS 2727static ssize_t ray_cs_essid_proc_write(struct file *file, 2728 const char __user *buffer, size_t count, loff_t *pos) 2729{ 2730 static char proc_essid[33]; 2731 unsigned int len = count; 2732 2733 if (len > 32) 2734 len = 32; 2735 memset(proc_essid, 0, 33); 2736 if (copy_from_user(proc_essid, buffer, len)) 2737 return -EFAULT; 2738 essid = proc_essid; 2739 return count; 2740} 2741 2742static const struct file_operations ray_cs_essid_proc_fops = { 2743 .owner = THIS_MODULE, 2744 .write = ray_cs_essid_proc_write, 2745 .llseek = noop_llseek, 2746}; 2747 2748static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2749 size_t count, loff_t *pos) 2750{ 2751 static char proc_number[10]; 2752 char *p; 2753 int nr, len; 2754 2755 if (!count) 2756 return 0; 2757 2758 if (count > 9) 2759 return -EINVAL; 2760 if (copy_from_user(proc_number, buffer, count)) 2761 return -EFAULT; 2762 p = proc_number; 2763 nr = 0; 2764 len = count; 2765 do { 2766 unsigned int c = *p - '0'; 2767 if (c > 9) 2768 return -EINVAL; 2769 nr = nr * 10 + c; 2770 p++; 2771 } while (--len); 2772 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr; 2773 return count; 2774} 2775 2776static const struct file_operations int_proc_fops = { 2777 .owner = THIS_MODULE, 2778 .write = int_proc_write, 2779 .llseek = noop_llseek, 2780}; 2781#endif 2782 2783static const struct pcmcia_device_id ray_ids[] = { 2784 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2785 PCMCIA_DEVICE_NULL, 2786}; 2787 2788MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2789 2790static struct pcmcia_driver ray_driver = { 2791 .owner = THIS_MODULE, 2792 .name = "ray_cs", 2793 .probe = ray_probe, 2794 .remove = ray_detach, 2795 .id_table = ray_ids, 2796 .suspend = ray_suspend, 2797 .resume = ray_resume, 2798}; 2799 2800static int __init init_ray_cs(void) 2801{ 2802 int rc; 2803 2804 pr_debug("%s\n", rcsid); 2805 rc = pcmcia_register_driver(&ray_driver); 2806 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2807 rc); 2808 2809#ifdef CONFIG_PROC_FS 2810 proc_mkdir("driver/ray_cs", NULL); 2811 2812 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops); 2813 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops); 2814 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type); 2815 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate); 2816#endif 2817 if (translate != 0) 2818 translate = 1; 2819 return 0; 2820} /* init_ray_cs */ 2821 2822/*===========================================================================*/ 2823 2824static void __exit exit_ray_cs(void) 2825{ 2826 pr_debug("ray_cs: cleanup_module\n"); 2827 2828#ifdef CONFIG_PROC_FS 2829 remove_proc_entry("driver/ray_cs/ray_cs", NULL); 2830 remove_proc_entry("driver/ray_cs/essid", NULL); 2831 remove_proc_entry("driver/ray_cs/net_type", NULL); 2832 remove_proc_entry("driver/ray_cs/translate", NULL); 2833 remove_proc_entry("driver/ray_cs", NULL); 2834#endif 2835 2836 pcmcia_unregister_driver(&ray_driver); 2837} /* exit_ray_cs */ 2838 2839module_init(init_ray_cs); 2840module_exit(exit_ray_cs); 2841 2842/*===========================================================================*/ 2843