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, see <http://www.gnu.org/licenses/>. 21 * 22 * Changes: 23 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000 24 * - reorganize kmallocs in ray_attach, checking all for failure 25 * and releasing the previous allocations if one fails 26 * 27 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003 28 * - Audit copy_to_user in ioctl(SIOCGIWESSID) 29 * 30=============================================================================*/ 31 32#include <linux/module.h> 33#include <linux/kernel.h> 34#include <linux/proc_fs.h> 35#include <linux/ptrace.h> 36#include <linux/seq_file.h> 37#include <linux/string.h> 38#include <linux/timer.h> 39#include <linux/init.h> 40#include <linux/netdevice.h> 41#include <linux/etherdevice.h> 42#include <linux/if_arp.h> 43#include <linux/ioport.h> 44#include <linux/skbuff.h> 45#include <linux/ieee80211.h> 46 47#include <pcmcia/cistpl.h> 48#include <pcmcia/cisreg.h> 49#include <pcmcia/ds.h> 50 51#include <linux/wireless.h> 52#include <net/iw_handler.h> 53 54#include <asm/io.h> 55#include <asm/byteorder.h> 56#include <asm/uaccess.h> 57 58/* Warning : these stuff will slow down the driver... */ 59#define WIRELESS_SPY /* Enable spying addresses */ 60/* Definitions we need for spy */ 61typedef struct iw_statistics iw_stats; 62typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */ 63 64#include "rayctl.h" 65#include "ray_cs.h" 66 67 68/** Prototypes based on PCMCIA skeleton driver *******************************/ 69static int ray_config(struct pcmcia_device *link); 70static void ray_release(struct pcmcia_device *link); 71static void ray_detach(struct pcmcia_device *p_dev); 72 73/***** Prototypes indicated by device structure ******************************/ 74static int ray_dev_close(struct net_device *dev); 75static int ray_dev_config(struct net_device *dev, struct ifmap *map); 76static struct net_device_stats *ray_get_stats(struct net_device *dev); 77static int ray_dev_init(struct net_device *dev); 78 79static int ray_open(struct net_device *dev); 80static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 81 struct net_device *dev); 82static void set_multicast_list(struct net_device *dev); 83static void ray_update_multi_list(struct net_device *dev, int all); 84static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 85 unsigned char *data, int len); 86static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 87 UCHAR msg_type, unsigned char *data); 88static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len); 89static iw_stats *ray_get_wireless_stats(struct net_device *dev); 90static const struct iw_handler_def ray_handler_def; 91 92/***** Prototypes for raylink functions **************************************/ 93static void authenticate(ray_dev_t *local); 94static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type); 95static void authenticate_timeout(u_long); 96static int get_free_ccs(ray_dev_t *local); 97static int get_free_tx_ccs(ray_dev_t *local); 98static void init_startup_params(ray_dev_t *local); 99static int parse_addr(char *in_str, UCHAR *out); 100static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type); 101static int ray_init(struct net_device *dev); 102static int interrupt_ecf(ray_dev_t *local, int ccs); 103static void ray_reset(struct net_device *dev); 104static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len); 105static void verify_dl_startup(u_long); 106 107/* Prototypes for interrpt time functions **********************************/ 108static irqreturn_t ray_interrupt(int reg, void *dev_id); 109static void clear_interrupt(ray_dev_t *local); 110static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 111 unsigned int pkt_addr, int rx_len); 112static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len); 113static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs); 114static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs); 115static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 116 unsigned int pkt_addr, int rx_len); 117static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 118 unsigned int pkt_addr, int rx_len); 119static void associate(ray_dev_t *local); 120 121/* Card command functions */ 122static int dl_startup_params(struct net_device *dev); 123static void join_net(u_long local); 124static void start_net(u_long local); 125/* void start_net(ray_dev_t *local); */ 126 127/*===========================================================================*/ 128/* Parameters that can be set with 'insmod' */ 129 130/* ADHOC=0, Infrastructure=1 */ 131static int net_type = ADHOC; 132 133/* Hop dwell time in Kus (1024 us units defined by 802.11) */ 134static int hop_dwell = 128; 135 136/* Beacon period in Kus */ 137static int beacon_period = 256; 138 139/* power save mode (0 = off, 1 = save power) */ 140static int psm; 141 142/* String for network's Extended Service Set ID. 32 Characters max */ 143static char *essid; 144 145/* Default to encapsulation unless translation requested */ 146static bool translate = 1; 147 148static int country = USA; 149 150static int sniffer; 151 152static int bc; 153 154/* 48 bit physical card address if overriding card's real physical 155 * address is required. Since IEEE 802.11 addresses are 48 bits 156 * like ethernet, an int can't be used, so a string is used. To 157 * allow use of addresses starting with a decimal digit, the first 158 * character must be a letter and will be ignored. This letter is 159 * followed by up to 12 hex digits which are the address. If less 160 * than 12 digits are used, the address will be left filled with 0's. 161 * Note that bit 0 of the first byte is the broadcast bit, and evil 162 * things will happen if it is not 0 in a card address. 163 */ 164static char *phy_addr = NULL; 165 166static unsigned int ray_mem_speed = 500; 167 168/* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ 169static struct pcmcia_device *this_device = NULL; 170 171MODULE_AUTHOR("Corey Thomas <corey@world.std.com>"); 172MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver"); 173MODULE_LICENSE("GPL"); 174 175module_param(net_type, int, 0); 176module_param(hop_dwell, int, 0); 177module_param(beacon_period, int, 0); 178module_param(psm, int, 0); 179module_param(essid, charp, 0); 180module_param(translate, bool, 0); 181module_param(country, int, 0); 182module_param(sniffer, int, 0); 183module_param(bc, int, 0); 184module_param(phy_addr, charp, 0); 185module_param(ray_mem_speed, int, 0); 186 187static const UCHAR b5_default_startup_parms[] = { 188 0, 0, /* Adhoc station */ 189 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 190 0, 0, 0, 0, 0, 0, 0, 0, 191 0, 0, 0, 0, 0, 0, 0, 0, 192 0, 0, 0, 0, 0, 0, 0, 0, 193 1, 0, /* Active scan, CA Mode */ 194 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 195 0x7f, 0xff, /* Frag threshold */ 196 0x00, 0x80, /* Hop time 128 Kus */ 197 0x01, 0x00, /* Beacon period 256 Kus */ 198 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 199 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */ 200 0x7f, 0xff, /* RTS threshold */ 201 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */ 202 0x05, /* assoc resp timeout thresh */ 203 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */ 204 0, /* Promiscuous mode */ 205 0x0c, 0x0bd, /* Unique word */ 206 0x32, /* Slot time */ 207 0xff, 0xff, /* roam-low snr, low snr count */ 208 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 209 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */ 210/* b4 - b5 differences start here */ 211 0x00, 0x3f, /* CW max */ 212 0x00, 0x0f, /* CW min */ 213 0x04, 0x08, /* Noise gain, limit offset */ 214 0x28, 0x28, /* det rssi, med busy offsets */ 215 7, /* det sync thresh */ 216 0, 2, 2, /* test mode, min, max */ 217 0, /* allow broadcast SSID probe resp */ 218 0, 0, /* privacy must start, can join */ 219 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */ 220}; 221 222static const UCHAR b4_default_startup_parms[] = { 223 0, 0, /* Adhoc station */ 224 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 225 0, 0, 0, 0, 0, 0, 0, 0, 226 0, 0, 0, 0, 0, 0, 0, 0, 227 0, 0, 0, 0, 0, 0, 0, 0, 228 1, 0, /* Active scan, CA Mode */ 229 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 230 0x7f, 0xff, /* Frag threshold */ 231 0x02, 0x00, /* Hop time */ 232 0x00, 0x01, /* Beacon period */ 233 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 234 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */ 235 0x7f, 0xff, /* RTS threshold */ 236 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */ 237 0x05, /* assoc resp timeout thresh */ 238 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */ 239 0, /* Promiscuous mode */ 240 0x0c, 0x0bd, /* Unique word */ 241 0x4e, /* Slot time (TBD seems wrong) */ 242 0xff, 0xff, /* roam-low snr, low snr count */ 243 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 244 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */ 245/* b4 - b5 differences start here */ 246 0x3f, 0x0f, /* CW max, min */ 247 0x04, 0x08, /* Noise gain, limit offset */ 248 0x28, 0x28, /* det rssi, med busy offsets */ 249 7, /* det sync thresh */ 250 0, 2, 2 /* test mode, min, max */ 251}; 252 253/*===========================================================================*/ 254static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; 255 256static const char hop_pattern_length[] = { 1, 257 USA_HOP_MOD, EUROPE_HOP_MOD, 258 JAPAN_HOP_MOD, KOREA_HOP_MOD, 259 SPAIN_HOP_MOD, FRANCE_HOP_MOD, 260 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD, 261 JAPAN_TEST_HOP_MOD 262}; 263 264static const char rcsid[] = 265 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; 266 267static const struct net_device_ops ray_netdev_ops = { 268 .ndo_init = ray_dev_init, 269 .ndo_open = ray_open, 270 .ndo_stop = ray_dev_close, 271 .ndo_start_xmit = ray_dev_start_xmit, 272 .ndo_set_config = ray_dev_config, 273 .ndo_get_stats = ray_get_stats, 274 .ndo_set_rx_mode = set_multicast_list, 275 .ndo_change_mtu = eth_change_mtu, 276 .ndo_set_mac_address = eth_mac_addr, 277 .ndo_validate_addr = eth_validate_addr, 278}; 279 280static int ray_probe(struct pcmcia_device *p_dev) 281{ 282 ray_dev_t *local; 283 struct net_device *dev; 284 285 dev_dbg(&p_dev->dev, "ray_attach()\n"); 286 287 /* Allocate space for private device-specific data */ 288 dev = alloc_etherdev(sizeof(ray_dev_t)); 289 if (!dev) 290 goto fail_alloc_dev; 291 292 local = netdev_priv(dev); 293 local->finder = p_dev; 294 295 /* The io structure describes IO port mapping. None used here */ 296 p_dev->resource[0]->end = 0; 297 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 298 299 /* General socket configuration */ 300 p_dev->config_flags |= CONF_ENABLE_IRQ; 301 p_dev->config_index = 1; 302 303 p_dev->priv = dev; 304 305 local->finder = p_dev; 306 local->card_status = CARD_INSERTED; 307 local->authentication_state = UNAUTHENTICATED; 308 local->num_multi = 0; 309 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 310 p_dev, dev, local, &ray_interrupt); 311 312 /* Raylink entries in the device structure */ 313 dev->netdev_ops = &ray_netdev_ops; 314 dev->wireless_handlers = &ray_handler_def; 315#ifdef WIRELESS_SPY 316 local->wireless_data.spy_data = &local->spy_data; 317 dev->wireless_data = &local->wireless_data; 318#endif /* WIRELESS_SPY */ 319 320 321 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 322 netif_stop_queue(dev); 323 324 init_timer(&local->timer); 325 326 this_device = p_dev; 327 return ray_config(p_dev); 328 329fail_alloc_dev: 330 return -ENOMEM; 331} /* ray_attach */ 332 333static void ray_detach(struct pcmcia_device *link) 334{ 335 struct net_device *dev; 336 ray_dev_t *local; 337 338 dev_dbg(&link->dev, "ray_detach\n"); 339 340 this_device = NULL; 341 dev = link->priv; 342 343 ray_release(link); 344 345 local = netdev_priv(dev); 346 del_timer_sync(&local->timer); 347 348 if (link->priv) { 349 unregister_netdev(dev); 350 free_netdev(dev); 351 } 352 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 353} /* ray_detach */ 354 355#define MAX_TUPLE_SIZE 128 356static int ray_config(struct pcmcia_device *link) 357{ 358 int ret = 0; 359 int i; 360 struct net_device *dev = (struct net_device *)link->priv; 361 ray_dev_t *local = netdev_priv(dev); 362 363 dev_dbg(&link->dev, "ray_config\n"); 364 365 /* Determine card type and firmware version */ 366 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 367 link->prod_id[0] ? link->prod_id[0] : " ", 368 link->prod_id[1] ? link->prod_id[1] : " ", 369 link->prod_id[2] ? link->prod_id[2] : " ", 370 link->prod_id[3] ? link->prod_id[3] : " "); 371 372 /* Now allocate an interrupt line. Note that this does not 373 actually assign a handler to the interrupt. 374 */ 375 ret = pcmcia_request_irq(link, ray_interrupt); 376 if (ret) 377 goto failed; 378 dev->irq = link->irq; 379 380 ret = pcmcia_enable_device(link); 381 if (ret) 382 goto failed; 383 384/*** Set up 32k window for shared memory (transmit and control) ************/ 385 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 386 link->resource[2]->start = 0; 387 link->resource[2]->end = 0x8000; 388 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); 389 if (ret) 390 goto failed; 391 ret = pcmcia_map_mem_page(link, link->resource[2], 0); 392 if (ret) 393 goto failed; 394 local->sram = ioremap(link->resource[2]->start, 395 resource_size(link->resource[2])); 396 397/*** Set up 16k window for shared memory (receive buffer) ***************/ 398 link->resource[3]->flags |= 399 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 400 link->resource[3]->start = 0; 401 link->resource[3]->end = 0x4000; 402 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); 403 if (ret) 404 goto failed; 405 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); 406 if (ret) 407 goto failed; 408 local->rmem = ioremap(link->resource[3]->start, 409 resource_size(link->resource[3])); 410 411/*** Set up window for attribute memory ***********************************/ 412 link->resource[4]->flags |= 413 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 414 link->resource[4]->start = 0; 415 link->resource[4]->end = 0x1000; 416 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); 417 if (ret) 418 goto failed; 419 ret = pcmcia_map_mem_page(link, link->resource[4], 0); 420 if (ret) 421 goto failed; 422 local->amem = ioremap(link->resource[4]->start, 423 resource_size(link->resource[4])); 424 425 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 426 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 427 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 428 if (ray_init(dev) < 0) { 429 ray_release(link); 430 return -ENODEV; 431 } 432 433 SET_NETDEV_DEV(dev, &link->dev); 434 i = register_netdev(dev); 435 if (i != 0) { 436 printk("ray_config register_netdev() failed\n"); 437 ray_release(link); 438 return i; 439 } 440 441 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 442 dev->name, dev->irq, dev->dev_addr); 443 444 return 0; 445 446failed: 447 ray_release(link); 448 return -ENODEV; 449} /* ray_config */ 450 451static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 452{ 453 return dev->sram + CCS_BASE; 454} 455 456static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 457{ 458 /* 459 * This looks nonsensical, since there is a separate 460 * RCS_BASE. But the difference between a "struct rcs" 461 * and a "struct ccs" ends up being in the _index_ off 462 * the base, so the base pointer is the same for both 463 * ccs/rcs. 464 */ 465 return dev->sram + CCS_BASE; 466} 467 468/*===========================================================================*/ 469static int ray_init(struct net_device *dev) 470{ 471 int i; 472 UCHAR *p; 473 struct ccs __iomem *pccs; 474 ray_dev_t *local = netdev_priv(dev); 475 struct pcmcia_device *link = local->finder; 476 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); 477 if (!(pcmcia_dev_present(link))) { 478 dev_dbg(&link->dev, "ray_init - device not present\n"); 479 return -1; 480 } 481 482 local->net_type = net_type; 483 local->sta_type = TYPE_STA; 484 485 /* Copy the startup results to local memory */ 486 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE, 487 sizeof(struct startup_res_6)); 488 489 /* Check Power up test status and get mac address from card */ 490 if (local->startup_res.startup_word != 0x80) { 491 printk(KERN_INFO "ray_init ERROR card status = %2x\n", 492 local->startup_res.startup_word); 493 local->card_status = CARD_INIT_ERROR; 494 return -1; 495 } 496 497 local->fw_ver = local->startup_res.firmware_version[0]; 498 local->fw_bld = local->startup_res.firmware_version[1]; 499 local->fw_var = local->startup_res.firmware_version[2]; 500 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver, 501 local->fw_bld); 502 503 local->tib_length = 0x20; 504 if ((local->fw_ver == 5) && (local->fw_bld >= 30)) 505 local->tib_length = local->startup_res.tib_length; 506 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length); 507 /* Initialize CCS's to buffer free state */ 508 pccs = ccs_base(local); 509 for (i = 0; i < NUMBER_OF_CCS; i++) { 510 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 511 } 512 init_startup_params(local); 513 514 /* copy mac address to startup parameters */ 515 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) { 516 p = local->sparm.b4.a_mac_addr; 517 } else { 518 memcpy(&local->sparm.b4.a_mac_addr, 519 &local->startup_res.station_addr, ADDRLEN); 520 p = local->sparm.b4.a_mac_addr; 521 } 522 523 clear_interrupt(local); /* Clear any interrupt from the card */ 524 local->card_status = CARD_AWAITING_PARAM; 525 dev_dbg(&link->dev, "ray_init ending\n"); 526 return 0; 527} /* ray_init */ 528 529/*===========================================================================*/ 530/* Download startup parameters to the card and command it to read them */ 531static int dl_startup_params(struct net_device *dev) 532{ 533 int ccsindex; 534 ray_dev_t *local = netdev_priv(dev); 535 struct ccs __iomem *pccs; 536 struct pcmcia_device *link = local->finder; 537 538 dev_dbg(&link->dev, "dl_startup_params entered\n"); 539 if (!(pcmcia_dev_present(link))) { 540 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 541 return -1; 542 } 543 544 /* Copy parameters to host to ECF area */ 545 if (local->fw_ver == 0x55) 546 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 547 sizeof(struct b4_startup_params)); 548 else 549 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 550 sizeof(struct b5_startup_params)); 551 552 /* Fill in the CCS fields for the ECF */ 553 if ((ccsindex = get_free_ccs(local)) < 0) 554 return -1; 555 local->dl_param_ccs = ccsindex; 556 pccs = ccs_base(local) + ccsindex; 557 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 558 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 559 local->dl_param_ccs); 560 /* Interrupt the firmware to process the command */ 561 if (interrupt_ecf(local, ccsindex)) { 562 printk(KERN_INFO "ray dl_startup_params failed - " 563 "ECF not ready for intr\n"); 564 local->card_status = CARD_DL_PARAM_ERROR; 565 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 566 return -2; 567 } 568 local->card_status = CARD_DL_PARAM; 569 /* Start kernel timer to wait for dl startup to complete. */ 570 local->timer.expires = jiffies + HZ / 2; 571 local->timer.data = (long)local; 572 local->timer.function = verify_dl_startup; 573 add_timer(&local->timer); 574 dev_dbg(&link->dev, 575 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 576 return 0; 577} /* dl_startup_params */ 578 579/*===========================================================================*/ 580static void init_startup_params(ray_dev_t *local) 581{ 582 int i; 583 584 if (country > JAPAN_TEST) 585 country = USA; 586 else if (country < USA) 587 country = USA; 588 /* structure for hop time and beacon period is defined here using 589 * New 802.11D6.1 format. Card firmware is still using old format 590 * until version 6. 591 * Before After 592 * a_hop_time ms byte a_hop_time ms byte 593 * a_hop_time 2s byte a_hop_time ls byte 594 * a_hop_time ls byte a_beacon_period ms byte 595 * a_beacon_period a_beacon_period ls byte 596 * 597 * a_hop_time = uS a_hop_time = KuS 598 * a_beacon_period = hops a_beacon_period = KuS 599 *//* 64ms = 010000 */ 600 if (local->fw_ver == 0x55) { 601 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms, 602 sizeof(struct b4_startup_params)); 603 /* Translate sane kus input values to old build 4/5 format */ 604 /* i = hop time in uS truncated to 3 bytes */ 605 i = (hop_dwell * 1024) & 0xffffff; 606 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 607 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 608 local->sparm.b4.a_beacon_period[0] = 0; 609 local->sparm.b4.a_beacon_period[1] = 610 ((beacon_period / hop_dwell) - 1) & 0xff; 611 local->sparm.b4.a_curr_country_code = country; 612 local->sparm.b4.a_hop_pattern_length = 613 hop_pattern_length[(int)country] - 1; 614 if (bc) { 615 local->sparm.b4.a_ack_timeout = 0x50; 616 local->sparm.b4.a_sifs = 0x3f; 617 } 618 } else { /* Version 5 uses real kus values */ 619 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 620 sizeof(struct b5_startup_params)); 621 622 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 623 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 624 local->sparm.b5.a_beacon_period[0] = 625 (beacon_period >> 8) & 0xff; 626 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 627 if (psm) 628 local->sparm.b5.a_power_mgt_state = 1; 629 local->sparm.b5.a_curr_country_code = country; 630 local->sparm.b5.a_hop_pattern_length = 631 hop_pattern_length[(int)country]; 632 } 633 634 local->sparm.b4.a_network_type = net_type & 0x01; 635 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 636 637 if (essid != NULL) 638 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 639} /* init_startup_params */ 640 641/*===========================================================================*/ 642static void verify_dl_startup(u_long data) 643{ 644 ray_dev_t *local = (ray_dev_t *) data; 645 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 646 UCHAR status; 647 struct pcmcia_device *link = local->finder; 648 649 if (!(pcmcia_dev_present(link))) { 650 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 651 return; 652 } 653#if 0 654 { 655 int i; 656 printk(KERN_DEBUG 657 "verify_dl_startup parameters sent via ccs %d:\n", 658 local->dl_param_ccs); 659 for (i = 0; i < sizeof(struct b5_startup_params); i++) { 660 printk(" %2x", 661 (unsigned int)readb(local->sram + 662 HOST_TO_ECF_BASE + i)); 663 } 664 printk("\n"); 665 } 666#endif 667 668 status = readb(&pccs->buffer_status); 669 if (status != CCS_BUFFER_FREE) { 670 printk(KERN_INFO 671 "Download startup params failed. Status = %d\n", 672 status); 673 local->card_status = CARD_DL_PARAM_ERROR; 674 return; 675 } 676 if (local->sparm.b4.a_network_type == ADHOC) 677 start_net((u_long) local); 678 else 679 join_net((u_long) local); 680} /* end verify_dl_startup */ 681 682/*===========================================================================*/ 683/* Command card to start a network */ 684static void start_net(u_long data) 685{ 686 ray_dev_t *local = (ray_dev_t *) data; 687 struct ccs __iomem *pccs; 688 int ccsindex; 689 struct pcmcia_device *link = local->finder; 690 if (!(pcmcia_dev_present(link))) { 691 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 692 return; 693 } 694 /* Fill in the CCS fields for the ECF */ 695 if ((ccsindex = get_free_ccs(local)) < 0) 696 return; 697 pccs = ccs_base(local) + ccsindex; 698 writeb(CCS_START_NETWORK, &pccs->cmd); 699 writeb(0, &pccs->var.start_network.update_param); 700 /* Interrupt the firmware to process the command */ 701 if (interrupt_ecf(local, ccsindex)) { 702 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 703 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 704 return; 705 } 706 local->card_status = CARD_DOING_ACQ; 707} /* end start_net */ 708 709/*===========================================================================*/ 710/* Command card to join a network */ 711static void join_net(u_long data) 712{ 713 ray_dev_t *local = (ray_dev_t *) data; 714 715 struct ccs __iomem *pccs; 716 int ccsindex; 717 struct pcmcia_device *link = local->finder; 718 719 if (!(pcmcia_dev_present(link))) { 720 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 721 return; 722 } 723 /* Fill in the CCS fields for the ECF */ 724 if ((ccsindex = get_free_ccs(local)) < 0) 725 return; 726 pccs = ccs_base(local) + ccsindex; 727 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 728 writeb(0, &pccs->var.join_network.update_param); 729 writeb(0, &pccs->var.join_network.net_initiated); 730 /* Interrupt the firmware to process the command */ 731 if (interrupt_ecf(local, ccsindex)) { 732 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 733 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 734 return; 735 } 736 local->card_status = CARD_DOING_ACQ; 737} 738 739 740static void ray_release(struct pcmcia_device *link) 741{ 742 struct net_device *dev = link->priv; 743 ray_dev_t *local = netdev_priv(dev); 744 745 dev_dbg(&link->dev, "ray_release\n"); 746 747 del_timer(&local->timer); 748 749 iounmap(local->sram); 750 iounmap(local->rmem); 751 iounmap(local->amem); 752 pcmcia_disable_device(link); 753 754 dev_dbg(&link->dev, "ray_release ending\n"); 755} 756 757static int ray_suspend(struct pcmcia_device *link) 758{ 759 struct net_device *dev = link->priv; 760 761 if (link->open) 762 netif_device_detach(dev); 763 764 return 0; 765} 766 767static int ray_resume(struct pcmcia_device *link) 768{ 769 struct net_device *dev = link->priv; 770 771 if (link->open) { 772 ray_reset(dev); 773 netif_device_attach(dev); 774 } 775 776 return 0; 777} 778 779/*===========================================================================*/ 780static int ray_dev_init(struct net_device *dev) 781{ 782#ifdef RAY_IMMEDIATE_INIT 783 int i; 784#endif /* RAY_IMMEDIATE_INIT */ 785 ray_dev_t *local = netdev_priv(dev); 786 struct pcmcia_device *link = local->finder; 787 788 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 789 if (!(pcmcia_dev_present(link))) { 790 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 791 return -1; 792 } 793#ifdef RAY_IMMEDIATE_INIT 794 /* Download startup parameters */ 795 if ((i = dl_startup_params(dev)) < 0) { 796 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 797 "returns 0x%x\n", i); 798 return -1; 799 } 800#else /* RAY_IMMEDIATE_INIT */ 801 /* Postpone the card init so that we can still configure the card, 802 * for example using the Wireless Extensions. The init will happen 803 * in ray_open() - Jean II */ 804 dev_dbg(&link->dev, 805 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 806 local->card_status); 807#endif /* RAY_IMMEDIATE_INIT */ 808 809 /* copy mac and broadcast addresses to linux device */ 810 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN); 811 eth_broadcast_addr(dev->broadcast); 812 813 dev_dbg(&link->dev, "ray_dev_init ending\n"); 814 return 0; 815} 816 817/*===========================================================================*/ 818static int ray_dev_config(struct net_device *dev, struct ifmap *map) 819{ 820 ray_dev_t *local = netdev_priv(dev); 821 struct pcmcia_device *link = local->finder; 822 /* Dummy routine to satisfy device structure */ 823 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 824 if (!(pcmcia_dev_present(link))) { 825 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 826 return -1; 827 } 828 829 return 0; 830} 831 832/*===========================================================================*/ 833static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 834 struct net_device *dev) 835{ 836 ray_dev_t *local = netdev_priv(dev); 837 struct pcmcia_device *link = local->finder; 838 short length = skb->len; 839 840 if (!pcmcia_dev_present(link)) { 841 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 842 dev_kfree_skb(skb); 843 return NETDEV_TX_OK; 844 } 845 846 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 847 if (local->authentication_state == NEED_TO_AUTH) { 848 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 849 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 850 local->authentication_state = AUTHENTICATED; 851 netif_stop_queue(dev); 852 return NETDEV_TX_BUSY; 853 } 854 } 855 856 if (length < ETH_ZLEN) { 857 if (skb_padto(skb, ETH_ZLEN)) 858 return NETDEV_TX_OK; 859 length = ETH_ZLEN; 860 } 861 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 862 case XMIT_NO_CCS: 863 case XMIT_NEED_AUTH: 864 netif_stop_queue(dev); 865 return NETDEV_TX_BUSY; 866 case XMIT_NO_INTR: 867 case XMIT_MSG_BAD: 868 case XMIT_OK: 869 default: 870 dev_kfree_skb(skb); 871 } 872 873 return NETDEV_TX_OK; 874} /* ray_dev_start_xmit */ 875 876/*===========================================================================*/ 877static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 878 UCHAR msg_type) 879{ 880 ray_dev_t *local = netdev_priv(dev); 881 struct ccs __iomem *pccs; 882 int ccsindex; 883 int offset; 884 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 885 short int addr; /* Address of xmit buffer in card space */ 886 887 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 888 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 889 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 890 len); 891 return XMIT_MSG_BAD; 892 } 893 switch (ccsindex = get_free_tx_ccs(local)) { 894 case ECCSBUSY: 895 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 896 case ECCSFULL: 897 pr_debug("ray_hw_xmit No free tx ccs\n"); 898 case ECARDGONE: 899 netif_stop_queue(dev); 900 return XMIT_NO_CCS; 901 default: 902 break; 903 } 904 addr = TX_BUF_BASE + (ccsindex << 11); 905 906 if (msg_type == DATA_TYPE) { 907 local->stats.tx_bytes += len; 908 local->stats.tx_packets++; 909 } 910 911 ptx = local->sram + addr; 912 913 ray_build_header(local, ptx, msg_type, data); 914 if (translate) { 915 offset = translate_frame(local, ptx, data, len); 916 } else { /* Encapsulate frame */ 917 /* TBD TIB length will move address of ptx->var */ 918 memcpy_toio(&ptx->var, data, len); 919 offset = 0; 920 } 921 922 /* fill in the CCS */ 923 pccs = ccs_base(local) + ccsindex; 924 len += TX_HEADER_LENGTH + offset; 925 writeb(CCS_TX_REQUEST, &pccs->cmd); 926 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 927 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 928 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 929 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 930/* TBD still need psm_cam? */ 931 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 932 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 933 writeb(0, &pccs->var.tx_request.antenna); 934 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 935 local->net_default_tx_rate); 936 937 /* Interrupt the firmware to process the command */ 938 if (interrupt_ecf(local, ccsindex)) { 939 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 940/* TBD very inefficient to copy packet to buffer, and then not 941 send it, but the alternative is to queue the messages and that 942 won't be done for a while. Maybe set tbusy until a CCS is free? 943*/ 944 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 945 return XMIT_NO_INTR; 946 } 947 return XMIT_OK; 948} /* end ray_hw_xmit */ 949 950/*===========================================================================*/ 951static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 952 unsigned char *data, int len) 953{ 954 __be16 proto = ((struct ethhdr *)data)->h_proto; 955 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */ 956 pr_debug("ray_cs translate_frame DIX II\n"); 957 /* Copy LLC header to card buffer */ 958 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 959 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 960 (UCHAR *) &proto, 2); 961 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 962 /* This is the selective translation table, only 2 entries */ 963 writeb(0xf8, 964 &((struct snaphdr_t __iomem *)ptx->var)->org[3]); 965 } 966 /* Copy body of ethernet packet without ethernet header */ 967 memcpy_toio((void __iomem *)&ptx->var + 968 sizeof(struct snaphdr_t), data + ETH_HLEN, 969 len - ETH_HLEN); 970 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 971 } else { /* already 802 type, and proto is length */ 972 pr_debug("ray_cs translate_frame 802\n"); 973 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 974 pr_debug("ray_cs translate_frame evil IPX\n"); 975 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 976 return 0 - ETH_HLEN; 977 } 978 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 979 return 0 - ETH_HLEN; 980 } 981 /* TBD do other frame types */ 982} /* end translate_frame */ 983 984/*===========================================================================*/ 985static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 986 UCHAR msg_type, unsigned char *data) 987{ 988 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 989/*** IEEE 802.11 Address field assignments ************* 990 TODS FROMDS addr_1 addr_2 addr_3 addr_4 991Adhoc 0 0 dest src (terminal) BSSID N/A 992AP to Terminal 0 1 dest AP(BSSID) source N/A 993Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 994AP to AP 1 1 dest AP src AP dest source 995*******************************************************/ 996 if (local->net_type == ADHOC) { 997 writeb(0, &ptx->mac.frame_ctl_2); 998 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 999 2 * ADDRLEN); 1000 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 1001 } else { /* infrastructure */ 1002 1003 if (local->sparm.b4.a_acting_as_ap_status) { 1004 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2); 1005 memcpy_toio(ptx->mac.addr_1, 1006 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1007 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6); 1008 memcpy_toio(ptx->mac.addr_3, 1009 ((struct ethhdr *)data)->h_source, ADDRLEN); 1010 } else { /* Terminal */ 1011 1012 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2); 1013 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN); 1014 memcpy_toio(ptx->mac.addr_2, 1015 ((struct ethhdr *)data)->h_source, ADDRLEN); 1016 memcpy_toio(ptx->mac.addr_3, 1017 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1018 } 1019 } 1020} /* end encapsulate_frame */ 1021 1022/*====================================================================*/ 1023 1024/*------------------------------------------------------------------*/ 1025/* 1026 * Wireless Handler : get protocol name 1027 */ 1028static int ray_get_name(struct net_device *dev, struct iw_request_info *info, 1029 union iwreq_data *wrqu, char *extra) 1030{ 1031 strcpy(wrqu->name, "IEEE 802.11-FH"); 1032 return 0; 1033} 1034 1035/*------------------------------------------------------------------*/ 1036/* 1037 * Wireless Handler : set frequency 1038 */ 1039static int ray_set_freq(struct net_device *dev, struct iw_request_info *info, 1040 union iwreq_data *wrqu, char *extra) 1041{ 1042 ray_dev_t *local = netdev_priv(dev); 1043 int err = -EINPROGRESS; /* Call commit handler */ 1044 1045 /* Reject if card is already initialised */ 1046 if (local->card_status != CARD_AWAITING_PARAM) 1047 return -EBUSY; 1048 1049 /* Setting by channel number */ 1050 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0)) 1051 err = -EOPNOTSUPP; 1052 else 1053 local->sparm.b5.a_hop_pattern = wrqu->freq.m; 1054 1055 return err; 1056} 1057 1058/*------------------------------------------------------------------*/ 1059/* 1060 * Wireless Handler : get frequency 1061 */ 1062static int ray_get_freq(struct net_device *dev, struct iw_request_info *info, 1063 union iwreq_data *wrqu, char *extra) 1064{ 1065 ray_dev_t *local = netdev_priv(dev); 1066 1067 wrqu->freq.m = local->sparm.b5.a_hop_pattern; 1068 wrqu->freq.e = 0; 1069 return 0; 1070} 1071 1072/*------------------------------------------------------------------*/ 1073/* 1074 * Wireless Handler : set ESSID 1075 */ 1076static int ray_set_essid(struct net_device *dev, struct iw_request_info *info, 1077 union iwreq_data *wrqu, char *extra) 1078{ 1079 ray_dev_t *local = netdev_priv(dev); 1080 1081 /* Reject if card is already initialised */ 1082 if (local->card_status != CARD_AWAITING_PARAM) 1083 return -EBUSY; 1084 1085 /* Check if we asked for `any' */ 1086 if (wrqu->essid.flags == 0) 1087 /* Corey : can you do that ? */ 1088 return -EOPNOTSUPP; 1089 1090 /* Check the size of the string */ 1091 if (wrqu->essid.length > IW_ESSID_MAX_SIZE) 1092 return -E2BIG; 1093 1094 /* Set the ESSID in the card */ 1095 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE); 1096 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length); 1097 1098 return -EINPROGRESS; /* Call commit handler */ 1099} 1100 1101/*------------------------------------------------------------------*/ 1102/* 1103 * Wireless Handler : get ESSID 1104 */ 1105static int ray_get_essid(struct net_device *dev, struct iw_request_info *info, 1106 union iwreq_data *wrqu, char *extra) 1107{ 1108 ray_dev_t *local = netdev_priv(dev); 1109 UCHAR tmp[IW_ESSID_MAX_SIZE + 1]; 1110 1111 /* Get the essid that was set */ 1112 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1113 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1114 tmp[IW_ESSID_MAX_SIZE] = '\0'; 1115 1116 /* Push it out ! */ 1117 wrqu->essid.length = strlen(tmp); 1118 wrqu->essid.flags = 1; /* active */ 1119 1120 return 0; 1121} 1122 1123/*------------------------------------------------------------------*/ 1124/* 1125 * Wireless Handler : get AP address 1126 */ 1127static int ray_get_wap(struct net_device *dev, struct iw_request_info *info, 1128 union iwreq_data *wrqu, char *extra) 1129{ 1130 ray_dev_t *local = netdev_priv(dev); 1131 1132 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN); 1133 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1134 1135 return 0; 1136} 1137 1138/*------------------------------------------------------------------*/ 1139/* 1140 * Wireless Handler : set Bit-Rate 1141 */ 1142static int ray_set_rate(struct net_device *dev, struct iw_request_info *info, 1143 union iwreq_data *wrqu, char *extra) 1144{ 1145 ray_dev_t *local = netdev_priv(dev); 1146 1147 /* Reject if card is already initialised */ 1148 if (local->card_status != CARD_AWAITING_PARAM) 1149 return -EBUSY; 1150 1151 /* Check if rate is in range */ 1152 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000)) 1153 return -EINVAL; 1154 1155 /* Hack for 1.5 Mb/s instead of 2 Mb/s */ 1156 if ((local->fw_ver == 0x55) && /* Please check */ 1157 (wrqu->bitrate.value == 2000000)) 1158 local->net_default_tx_rate = 3; 1159 else 1160 local->net_default_tx_rate = wrqu->bitrate.value / 500000; 1161 1162 return 0; 1163} 1164 1165/*------------------------------------------------------------------*/ 1166/* 1167 * Wireless Handler : get Bit-Rate 1168 */ 1169static int ray_get_rate(struct net_device *dev, struct iw_request_info *info, 1170 union iwreq_data *wrqu, char *extra) 1171{ 1172 ray_dev_t *local = netdev_priv(dev); 1173 1174 if (local->net_default_tx_rate == 3) 1175 wrqu->bitrate.value = 2000000; /* Hum... */ 1176 else 1177 wrqu->bitrate.value = local->net_default_tx_rate * 500000; 1178 wrqu->bitrate.fixed = 0; /* We are in auto mode */ 1179 1180 return 0; 1181} 1182 1183/*------------------------------------------------------------------*/ 1184/* 1185 * Wireless Handler : set RTS threshold 1186 */ 1187static int ray_set_rts(struct net_device *dev, struct iw_request_info *info, 1188 union iwreq_data *wrqu, char *extra) 1189{ 1190 ray_dev_t *local = netdev_priv(dev); 1191 int rthr = wrqu->rts.value; 1192 1193 /* Reject if card is already initialised */ 1194 if (local->card_status != CARD_AWAITING_PARAM) 1195 return -EBUSY; 1196 1197 /* if(wrq->u.rts.fixed == 0) we should complain */ 1198 if (wrqu->rts.disabled) 1199 rthr = 32767; 1200 else { 1201 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */ 1202 return -EINVAL; 1203 } 1204 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF; 1205 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF; 1206 1207 return -EINPROGRESS; /* Call commit handler */ 1208} 1209 1210/*------------------------------------------------------------------*/ 1211/* 1212 * Wireless Handler : get RTS threshold 1213 */ 1214static int ray_get_rts(struct net_device *dev, struct iw_request_info *info, 1215 union iwreq_data *wrqu, char *extra) 1216{ 1217 ray_dev_t *local = netdev_priv(dev); 1218 1219 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8) 1220 + local->sparm.b5.a_rts_threshold[1]; 1221 wrqu->rts.disabled = (wrqu->rts.value == 32767); 1222 wrqu->rts.fixed = 1; 1223 1224 return 0; 1225} 1226 1227/*------------------------------------------------------------------*/ 1228/* 1229 * Wireless Handler : set Fragmentation threshold 1230 */ 1231static int ray_set_frag(struct net_device *dev, struct iw_request_info *info, 1232 union iwreq_data *wrqu, char *extra) 1233{ 1234 ray_dev_t *local = netdev_priv(dev); 1235 int fthr = wrqu->frag.value; 1236 1237 /* Reject if card is already initialised */ 1238 if (local->card_status != CARD_AWAITING_PARAM) 1239 return -EBUSY; 1240 1241 /* if(wrq->u.frag.fixed == 0) should complain */ 1242 if (wrqu->frag.disabled) 1243 fthr = 32767; 1244 else { 1245 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */ 1246 return -EINVAL; 1247 } 1248 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF; 1249 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF; 1250 1251 return -EINPROGRESS; /* Call commit handler */ 1252} 1253 1254/*------------------------------------------------------------------*/ 1255/* 1256 * Wireless Handler : get Fragmentation threshold 1257 */ 1258static int ray_get_frag(struct net_device *dev, struct iw_request_info *info, 1259 union iwreq_data *wrqu, char *extra) 1260{ 1261 ray_dev_t *local = netdev_priv(dev); 1262 1263 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8) 1264 + local->sparm.b5.a_frag_threshold[1]; 1265 wrqu->frag.disabled = (wrqu->frag.value == 32767); 1266 wrqu->frag.fixed = 1; 1267 1268 return 0; 1269} 1270 1271/*------------------------------------------------------------------*/ 1272/* 1273 * Wireless Handler : set Mode of Operation 1274 */ 1275static int ray_set_mode(struct net_device *dev, struct iw_request_info *info, 1276 union iwreq_data *wrqu, char *extra) 1277{ 1278 ray_dev_t *local = netdev_priv(dev); 1279 int err = -EINPROGRESS; /* Call commit handler */ 1280 char card_mode = 1; 1281 1282 /* Reject if card is already initialised */ 1283 if (local->card_status != CARD_AWAITING_PARAM) 1284 return -EBUSY; 1285 1286 switch (wrqu->mode) { 1287 case IW_MODE_ADHOC: 1288 card_mode = 0; 1289 /* Fall through */ 1290 case IW_MODE_INFRA: 1291 local->sparm.b5.a_network_type = card_mode; 1292 break; 1293 default: 1294 err = -EINVAL; 1295 } 1296 1297 return err; 1298} 1299 1300/*------------------------------------------------------------------*/ 1301/* 1302 * Wireless Handler : get Mode of Operation 1303 */ 1304static int ray_get_mode(struct net_device *dev, struct iw_request_info *info, 1305 union iwreq_data *wrqu, char *extra) 1306{ 1307 ray_dev_t *local = netdev_priv(dev); 1308 1309 if (local->sparm.b5.a_network_type) 1310 wrqu->mode = IW_MODE_INFRA; 1311 else 1312 wrqu->mode = IW_MODE_ADHOC; 1313 1314 return 0; 1315} 1316 1317/*------------------------------------------------------------------*/ 1318/* 1319 * Wireless Handler : get range info 1320 */ 1321static int ray_get_range(struct net_device *dev, struct iw_request_info *info, 1322 union iwreq_data *wrqu, char *extra) 1323{ 1324 struct iw_range *range = (struct iw_range *)extra; 1325 1326 memset(range, 0, sizeof(struct iw_range)); 1327 1328 /* Set the length (very important for backward compatibility) */ 1329 wrqu->data.length = sizeof(struct iw_range); 1330 1331 /* Set the Wireless Extension versions */ 1332 range->we_version_compiled = WIRELESS_EXT; 1333 range->we_version_source = 9; 1334 1335 /* Set information in the range struct */ 1336 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */ 1337 range->num_channels = hop_pattern_length[(int)country]; 1338 range->num_frequency = 0; 1339 range->max_qual.qual = 0; 1340 range->max_qual.level = 255; /* What's the correct value ? */ 1341 range->max_qual.noise = 255; /* Idem */ 1342 range->num_bitrates = 2; 1343 range->bitrate[0] = 1000000; /* 1 Mb/s */ 1344 range->bitrate[1] = 2000000; /* 2 Mb/s */ 1345 return 0; 1346} 1347 1348/*------------------------------------------------------------------*/ 1349/* 1350 * Wireless Private Handler : set framing mode 1351 */ 1352static int ray_set_framing(struct net_device *dev, struct iw_request_info *info, 1353 union iwreq_data *wrqu, char *extra) 1354{ 1355 translate = !!*(extra); /* Set framing mode */ 1356 1357 return 0; 1358} 1359 1360/*------------------------------------------------------------------*/ 1361/* 1362 * Wireless Private Handler : get framing mode 1363 */ 1364static int ray_get_framing(struct net_device *dev, struct iw_request_info *info, 1365 union iwreq_data *wrqu, char *extra) 1366{ 1367 *(extra) = translate; 1368 1369 return 0; 1370} 1371 1372/*------------------------------------------------------------------*/ 1373/* 1374 * Wireless Private Handler : get country 1375 */ 1376static int ray_get_country(struct net_device *dev, struct iw_request_info *info, 1377 union iwreq_data *wrqu, char *extra) 1378{ 1379 *(extra) = country; 1380 1381 return 0; 1382} 1383 1384/*------------------------------------------------------------------*/ 1385/* 1386 * Commit handler : called after a bunch of SET operations 1387 */ 1388static int ray_commit(struct net_device *dev, struct iw_request_info *info, 1389 union iwreq_data *wrqu, char *extra) 1390{ 1391 return 0; 1392} 1393 1394/*------------------------------------------------------------------*/ 1395/* 1396 * Stats handler : return Wireless Stats 1397 */ 1398static iw_stats *ray_get_wireless_stats(struct net_device *dev) 1399{ 1400 ray_dev_t *local = netdev_priv(dev); 1401 struct pcmcia_device *link = local->finder; 1402 struct status __iomem *p = local->sram + STATUS_BASE; 1403 1404 local->wstats.status = local->card_status; 1405#ifdef WIRELESS_SPY 1406 if ((local->spy_data.spy_number > 0) 1407 && (local->sparm.b5.a_network_type == 0)) { 1408 /* Get it from the first node in spy list */ 1409 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual; 1410 local->wstats.qual.level = local->spy_data.spy_stat[0].level; 1411 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise; 1412 local->wstats.qual.updated = 1413 local->spy_data.spy_stat[0].updated; 1414 } 1415#endif /* WIRELESS_SPY */ 1416 1417 if (pcmcia_dev_present(link)) { 1418 local->wstats.qual.noise = readb(&p->rxnoise); 1419 local->wstats.qual.updated |= 4; 1420 } 1421 1422 return &local->wstats; 1423} /* end ray_get_wireless_stats */ 1424 1425/*------------------------------------------------------------------*/ 1426/* 1427 * Structures to export the Wireless Handlers 1428 */ 1429 1430static const iw_handler ray_handler[] = { 1431 IW_HANDLER(SIOCSIWCOMMIT, ray_commit), 1432 IW_HANDLER(SIOCGIWNAME, ray_get_name), 1433 IW_HANDLER(SIOCSIWFREQ, ray_set_freq), 1434 IW_HANDLER(SIOCGIWFREQ, ray_get_freq), 1435 IW_HANDLER(SIOCSIWMODE, ray_set_mode), 1436 IW_HANDLER(SIOCGIWMODE, ray_get_mode), 1437 IW_HANDLER(SIOCGIWRANGE, ray_get_range), 1438#ifdef WIRELESS_SPY 1439 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1440 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1441 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1442 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1443#endif /* WIRELESS_SPY */ 1444 IW_HANDLER(SIOCGIWAP, ray_get_wap), 1445 IW_HANDLER(SIOCSIWESSID, ray_set_essid), 1446 IW_HANDLER(SIOCGIWESSID, ray_get_essid), 1447 IW_HANDLER(SIOCSIWRATE, ray_set_rate), 1448 IW_HANDLER(SIOCGIWRATE, ray_get_rate), 1449 IW_HANDLER(SIOCSIWRTS, ray_set_rts), 1450 IW_HANDLER(SIOCGIWRTS, ray_get_rts), 1451 IW_HANDLER(SIOCSIWFRAG, ray_set_frag), 1452 IW_HANDLER(SIOCGIWFRAG, ray_get_frag), 1453}; 1454 1455#define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */ 1456#define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */ 1457#define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */ 1458 1459static const iw_handler ray_private_handler[] = { 1460 [0] = ray_set_framing, 1461 [1] = ray_get_framing, 1462 [3] = ray_get_country, 1463}; 1464 1465static const struct iw_priv_args ray_private_args[] = { 1466/* cmd, set_args, get_args, name */ 1467 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, 1468 "set_framing"}, 1469 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1470 "get_framing"}, 1471 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1472 "get_country"}, 1473}; 1474 1475static const struct iw_handler_def ray_handler_def = { 1476 .num_standard = ARRAY_SIZE(ray_handler), 1477 .num_private = ARRAY_SIZE(ray_private_handler), 1478 .num_private_args = ARRAY_SIZE(ray_private_args), 1479 .standard = ray_handler, 1480 .private = ray_private_handler, 1481 .private_args = ray_private_args, 1482 .get_wireless_stats = ray_get_wireless_stats, 1483}; 1484 1485/*===========================================================================*/ 1486static int ray_open(struct net_device *dev) 1487{ 1488 ray_dev_t *local = netdev_priv(dev); 1489 struct pcmcia_device *link; 1490 link = local->finder; 1491 1492 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name); 1493 1494 if (link->open == 0) 1495 local->num_multi = 0; 1496 link->open++; 1497 1498 /* If the card is not started, time to start it ! - Jean II */ 1499 if (local->card_status == CARD_AWAITING_PARAM) { 1500 int i; 1501 1502 dev_dbg(&link->dev, "ray_open: doing init now !\n"); 1503 1504 /* Download startup parameters */ 1505 if ((i = dl_startup_params(dev)) < 0) { 1506 printk(KERN_INFO 1507 "ray_dev_init dl_startup_params failed - " 1508 "returns 0x%x\n", i); 1509 return -1; 1510 } 1511 } 1512 1513 if (sniffer) 1514 netif_stop_queue(dev); 1515 else 1516 netif_start_queue(dev); 1517 1518 dev_dbg(&link->dev, "ray_open ending\n"); 1519 return 0; 1520} /* end ray_open */ 1521 1522/*===========================================================================*/ 1523static int ray_dev_close(struct net_device *dev) 1524{ 1525 ray_dev_t *local = netdev_priv(dev); 1526 struct pcmcia_device *link; 1527 link = local->finder; 1528 1529 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name); 1530 1531 link->open--; 1532 netif_stop_queue(dev); 1533 1534 /* In here, we should stop the hardware (stop card from beeing active) 1535 * and set local->card_status to CARD_AWAITING_PARAM, so that while the 1536 * card is closed we can chage its configuration. 1537 * Probably also need a COR reset to get sane state - Jean II */ 1538 1539 return 0; 1540} /* end ray_dev_close */ 1541 1542/*===========================================================================*/ 1543static void ray_reset(struct net_device *dev) 1544{ 1545 pr_debug("ray_reset entered\n"); 1546} 1547 1548/*===========================================================================*/ 1549/* Cause a firmware interrupt if it is ready for one */ 1550/* Return nonzero if not ready */ 1551static int interrupt_ecf(ray_dev_t *local, int ccs) 1552{ 1553 int i = 50; 1554 struct pcmcia_device *link = local->finder; 1555 1556 if (!(pcmcia_dev_present(link))) { 1557 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n"); 1558 return -1; 1559 } 1560 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs); 1561 1562 while (i && 1563 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & 1564 ECF_INTR_SET)) 1565 i--; 1566 if (i == 0) { 1567 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n"); 1568 return -1; 1569 } 1570 /* Fill the mailbox, then kick the card */ 1571 writeb(ccs, local->sram + SCB_BASE); 1572 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET); 1573 return 0; 1574} /* interrupt_ecf */ 1575 1576/*===========================================================================*/ 1577/* Get next free transmit CCS */ 1578/* Return - index of current tx ccs */ 1579static int get_free_tx_ccs(ray_dev_t *local) 1580{ 1581 int i; 1582 struct ccs __iomem *pccs = ccs_base(local); 1583 struct pcmcia_device *link = local->finder; 1584 1585 if (!(pcmcia_dev_present(link))) { 1586 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n"); 1587 return ECARDGONE; 1588 } 1589 1590 if (test_and_set_bit(0, &local->tx_ccs_lock)) { 1591 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n"); 1592 return ECCSBUSY; 1593 } 1594 1595 for (i = 0; i < NUMBER_OF_TX_CCS; i++) { 1596 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1597 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1598 writeb(CCS_END_LIST, &(pccs + i)->link); 1599 local->tx_ccs_lock = 0; 1600 return i; 1601 } 1602 } 1603 local->tx_ccs_lock = 0; 1604 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n"); 1605 return ECCSFULL; 1606} /* get_free_tx_ccs */ 1607 1608/*===========================================================================*/ 1609/* Get next free CCS */ 1610/* Return - index of current ccs */ 1611static int get_free_ccs(ray_dev_t *local) 1612{ 1613 int i; 1614 struct ccs __iomem *pccs = ccs_base(local); 1615 struct pcmcia_device *link = local->finder; 1616 1617 if (!(pcmcia_dev_present(link))) { 1618 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n"); 1619 return ECARDGONE; 1620 } 1621 if (test_and_set_bit(0, &local->ccs_lock)) { 1622 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n"); 1623 return ECCSBUSY; 1624 } 1625 1626 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) { 1627 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1628 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1629 writeb(CCS_END_LIST, &(pccs + i)->link); 1630 local->ccs_lock = 0; 1631 return i; 1632 } 1633 } 1634 local->ccs_lock = 0; 1635 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n"); 1636 return ECCSFULL; 1637} /* get_free_ccs */ 1638 1639/*===========================================================================*/ 1640static void authenticate_timeout(u_long data) 1641{ 1642 ray_dev_t *local = (ray_dev_t *) data; 1643 del_timer(&local->timer); 1644 printk(KERN_INFO "ray_cs Authentication with access point failed" 1645 " - timeout\n"); 1646 join_net((u_long) local); 1647} 1648 1649/*===========================================================================*/ 1650static int parse_addr(char *in_str, UCHAR *out) 1651{ 1652 int len; 1653 int i, j, k; 1654 int status; 1655 1656 if (in_str == NULL) 1657 return 0; 1658 if ((len = strlen(in_str)) < 2) 1659 return 0; 1660 memset(out, 0, ADDRLEN); 1661 1662 status = 1; 1663 j = len - 1; 1664 if (j > 12) 1665 j = 12; 1666 i = 5; 1667 1668 while (j > 0) { 1669 if ((k = hex_to_bin(in_str[j--])) != -1) 1670 out[i] = k; 1671 else 1672 return 0; 1673 1674 if (j == 0) 1675 break; 1676 if ((k = hex_to_bin(in_str[j--])) != -1) 1677 out[i] += k << 4; 1678 else 1679 return 0; 1680 if (!i--) 1681 break; 1682 } 1683 return status; 1684} 1685 1686/*===========================================================================*/ 1687static struct net_device_stats *ray_get_stats(struct net_device *dev) 1688{ 1689 ray_dev_t *local = netdev_priv(dev); 1690 struct pcmcia_device *link = local->finder; 1691 struct status __iomem *p = local->sram + STATUS_BASE; 1692 if (!(pcmcia_dev_present(link))) { 1693 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1694 return &local->stats; 1695 } 1696 if (readb(&p->mrx_overflow_for_host)) { 1697 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1698 writeb(0, &p->mrx_overflow); 1699 writeb(0, &p->mrx_overflow_for_host); 1700 } 1701 if (readb(&p->mrx_checksum_error_for_host)) { 1702 local->stats.rx_crc_errors += 1703 swab16(readw(&p->mrx_checksum_error)); 1704 writeb(0, &p->mrx_checksum_error); 1705 writeb(0, &p->mrx_checksum_error_for_host); 1706 } 1707 if (readb(&p->rx_hec_error_for_host)) { 1708 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1709 writeb(0, &p->rx_hec_error); 1710 writeb(0, &p->rx_hec_error_for_host); 1711 } 1712 return &local->stats; 1713} 1714 1715/*===========================================================================*/ 1716static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1717 int len) 1718{ 1719 ray_dev_t *local = netdev_priv(dev); 1720 struct pcmcia_device *link = local->finder; 1721 int ccsindex; 1722 int i; 1723 struct ccs __iomem *pccs; 1724 1725 if (!(pcmcia_dev_present(link))) { 1726 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1727 return; 1728 } 1729 1730 if ((ccsindex = get_free_ccs(local)) < 0) { 1731 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1732 return; 1733 } 1734 pccs = ccs_base(local) + ccsindex; 1735 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1736 writeb(objid, &pccs->var.update_param.object_id); 1737 writeb(1, &pccs->var.update_param.number_objects); 1738 writeb(0, &pccs->var.update_param.failure_cause); 1739 for (i = 0; i < len; i++) { 1740 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1741 } 1742 /* Interrupt the firmware to process the command */ 1743 if (interrupt_ecf(local, ccsindex)) { 1744 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1745 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1746 } 1747} 1748 1749/*===========================================================================*/ 1750static void ray_update_multi_list(struct net_device *dev, int all) 1751{ 1752 int ccsindex; 1753 struct ccs __iomem *pccs; 1754 ray_dev_t *local = netdev_priv(dev); 1755 struct pcmcia_device *link = local->finder; 1756 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1757 1758 if (!(pcmcia_dev_present(link))) { 1759 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1760 return; 1761 } else 1762 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1763 if ((ccsindex = get_free_ccs(local)) < 0) { 1764 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1765 return; 1766 } 1767 pccs = ccs_base(local) + ccsindex; 1768 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1769 1770 if (all) { 1771 writeb(0xff, &pccs->var); 1772 local->num_multi = 0xff; 1773 } else { 1774 struct netdev_hw_addr *ha; 1775 int i = 0; 1776 1777 /* Copy the kernel's list of MC addresses to card */ 1778 netdev_for_each_mc_addr(ha, dev) { 1779 memcpy_toio(p, ha->addr, ETH_ALEN); 1780 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n", 1781 ha->addr); 1782 p += ETH_ALEN; 1783 i++; 1784 } 1785 if (i > 256 / ADDRLEN) 1786 i = 256 / ADDRLEN; 1787 writeb((UCHAR) i, &pccs->var); 1788 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1789 /* Interrupt the firmware to process the command */ 1790 local->num_multi = i; 1791 } 1792 if (interrupt_ecf(local, ccsindex)) { 1793 dev_dbg(&link->dev, 1794 "ray_cs update_multi failed - ECF not ready for intr\n"); 1795 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1796 } 1797} /* end ray_update_multi_list */ 1798 1799/*===========================================================================*/ 1800static void set_multicast_list(struct net_device *dev) 1801{ 1802 ray_dev_t *local = netdev_priv(dev); 1803 UCHAR promisc; 1804 1805 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1806 1807 if (dev->flags & IFF_PROMISC) { 1808 if (local->sparm.b5.a_promiscuous_mode == 0) { 1809 pr_debug("ray_cs set_multicast_list promisc on\n"); 1810 local->sparm.b5.a_promiscuous_mode = 1; 1811 promisc = 1; 1812 ray_update_parm(dev, OBJID_promiscuous_mode, 1813 &promisc, sizeof(promisc)); 1814 } 1815 } else { 1816 if (local->sparm.b5.a_promiscuous_mode == 1) { 1817 pr_debug("ray_cs set_multicast_list promisc off\n"); 1818 local->sparm.b5.a_promiscuous_mode = 0; 1819 promisc = 0; 1820 ray_update_parm(dev, OBJID_promiscuous_mode, 1821 &promisc, sizeof(promisc)); 1822 } 1823 } 1824 1825 if (dev->flags & IFF_ALLMULTI) 1826 ray_update_multi_list(dev, 1); 1827 else { 1828 if (local->num_multi != netdev_mc_count(dev)) 1829 ray_update_multi_list(dev, 0); 1830 } 1831} /* end set_multicast_list */ 1832 1833/*============================================================================= 1834 * All routines below here are run at interrupt time. 1835=============================================================================*/ 1836static irqreturn_t ray_interrupt(int irq, void *dev_id) 1837{ 1838 struct net_device *dev = (struct net_device *)dev_id; 1839 struct pcmcia_device *link; 1840 ray_dev_t *local; 1841 struct ccs __iomem *pccs; 1842 struct rcs __iomem *prcs; 1843 UCHAR rcsindex; 1844 UCHAR tmp; 1845 UCHAR cmd; 1846 UCHAR status; 1847 UCHAR memtmp[ESSID_SIZE + 1]; 1848 1849 1850 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1851 return IRQ_NONE; 1852 1853 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1854 1855 local = netdev_priv(dev); 1856 link = local->finder; 1857 if (!pcmcia_dev_present(link)) { 1858 pr_debug( 1859 "ray_cs interrupt from device not present or suspended.\n"); 1860 return IRQ_NONE; 1861 } 1862 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1863 1864 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1865 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1866 clear_interrupt(local); 1867 return IRQ_HANDLED; 1868 } 1869 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1870 pccs = ccs_base(local) + rcsindex; 1871 cmd = readb(&pccs->cmd); 1872 status = readb(&pccs->buffer_status); 1873 switch (cmd) { 1874 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1875 del_timer(&local->timer); 1876 if (status == CCS_COMMAND_COMPLETE) { 1877 dev_dbg(&link->dev, 1878 "ray_cs interrupt download_startup_parameters OK\n"); 1879 } else { 1880 dev_dbg(&link->dev, 1881 "ray_cs interrupt download_startup_parameters fail\n"); 1882 } 1883 break; 1884 case CCS_UPDATE_PARAMS: 1885 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1886 if (status != CCS_COMMAND_COMPLETE) { 1887 tmp = 1888 readb(&pccs->var.update_param. 1889 failure_cause); 1890 dev_dbg(&link->dev, 1891 "ray_cs interrupt update params failed - reason %d\n", 1892 tmp); 1893 } 1894 break; 1895 case CCS_REPORT_PARAMS: 1896 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1897 break; 1898 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1899 dev_dbg(&link->dev, 1900 "ray_cs interrupt CCS Update Multicast List done\n"); 1901 break; 1902 case CCS_UPDATE_POWER_SAVINGS_MODE: 1903 dev_dbg(&link->dev, 1904 "ray_cs interrupt update power save mode done\n"); 1905 break; 1906 case CCS_START_NETWORK: 1907 case CCS_JOIN_NETWORK: 1908 memcpy(memtmp, local->sparm.b4.a_current_ess_id, 1909 ESSID_SIZE); 1910 memtmp[ESSID_SIZE] = '\0'; 1911 1912 if (status == CCS_COMMAND_COMPLETE) { 1913 if (readb 1914 (&pccs->var.start_network.net_initiated) == 1915 1) { 1916 dev_dbg(&link->dev, 1917 "ray_cs interrupt network \"%s\" started\n", 1918 memtmp); 1919 } else { 1920 dev_dbg(&link->dev, 1921 "ray_cs interrupt network \"%s\" joined\n", 1922 memtmp); 1923 } 1924 memcpy_fromio(&local->bss_id, 1925 pccs->var.start_network.bssid, 1926 ADDRLEN); 1927 1928 if (local->fw_ver == 0x55) 1929 local->net_default_tx_rate = 3; 1930 else 1931 local->net_default_tx_rate = 1932 readb(&pccs->var.start_network. 1933 net_default_tx_rate); 1934 local->encryption = 1935 readb(&pccs->var.start_network.encryption); 1936 if (!sniffer && (local->net_type == INFRA) 1937 && !(local->sparm.b4.a_acting_as_ap_status)) { 1938 authenticate(local); 1939 } 1940 local->card_status = CARD_ACQ_COMPLETE; 1941 } else { 1942 local->card_status = CARD_ACQ_FAILED; 1943 1944 del_timer(&local->timer); 1945 local->timer.expires = jiffies + HZ * 5; 1946 local->timer.data = (long)local; 1947 if (status == CCS_START_NETWORK) { 1948 dev_dbg(&link->dev, 1949 "ray_cs interrupt network \"%s\" start failed\n", 1950 memtmp); 1951 local->timer.function = start_net; 1952 } else { 1953 dev_dbg(&link->dev, 1954 "ray_cs interrupt network \"%s\" join failed\n", 1955 memtmp); 1956 local->timer.function = join_net; 1957 } 1958 add_timer(&local->timer); 1959 } 1960 break; 1961 case CCS_START_ASSOCIATION: 1962 if (status == CCS_COMMAND_COMPLETE) { 1963 local->card_status = CARD_ASSOC_COMPLETE; 1964 dev_dbg(&link->dev, "ray_cs association successful\n"); 1965 } else { 1966 dev_dbg(&link->dev, "ray_cs association failed,\n"); 1967 local->card_status = CARD_ASSOC_FAILED; 1968 join_net((u_long) local); 1969 } 1970 break; 1971 case CCS_TX_REQUEST: 1972 if (status == CCS_COMMAND_COMPLETE) { 1973 dev_dbg(&link->dev, 1974 "ray_cs interrupt tx request complete\n"); 1975 } else { 1976 dev_dbg(&link->dev, 1977 "ray_cs interrupt tx request failed\n"); 1978 } 1979 if (!sniffer) 1980 netif_start_queue(dev); 1981 netif_wake_queue(dev); 1982 break; 1983 case CCS_TEST_MEMORY: 1984 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 1985 break; 1986 case CCS_SHUTDOWN: 1987 dev_dbg(&link->dev, 1988 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 1989 break; 1990 case CCS_DUMP_MEMORY: 1991 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 1992 break; 1993 case CCS_START_TIMER: 1994 dev_dbg(&link->dev, 1995 "ray_cs interrupt DING - raylink timer expired\n"); 1996 break; 1997 default: 1998 dev_dbg(&link->dev, 1999 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 2000 rcsindex, cmd); 2001 } 2002 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 2003 } else { /* It's an RCS */ 2004 2005 prcs = rcs_base(local) + rcsindex; 2006 2007 switch (readb(&prcs->interrupt_id)) { 2008 case PROCESS_RX_PACKET: 2009 ray_rx(dev, local, prcs); 2010 break; 2011 case REJOIN_NET_COMPLETE: 2012 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2013 local->card_status = CARD_ACQ_COMPLETE; 2014 /* do we need to clear tx buffers CCS's? */ 2015 if (local->sparm.b4.a_network_type == ADHOC) { 2016 if (!sniffer) 2017 netif_start_queue(dev); 2018 } else { 2019 memcpy_fromio(&local->bss_id, 2020 prcs->var.rejoin_net_complete. 2021 bssid, ADDRLEN); 2022 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n", 2023 local->bss_id); 2024 if (!sniffer) 2025 authenticate(local); 2026 } 2027 break; 2028 case ROAMING_INITIATED: 2029 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2030 netif_stop_queue(dev); 2031 local->card_status = CARD_DOING_ACQ; 2032 break; 2033 case JAPAN_CALL_SIGN_RXD: 2034 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2035 break; 2036 default: 2037 dev_dbg(&link->dev, 2038 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2039 rcsindex, 2040 (unsigned int)readb(&prcs->interrupt_id)); 2041 break; 2042 } 2043 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2044 } 2045 clear_interrupt(local); 2046 return IRQ_HANDLED; 2047} /* ray_interrupt */ 2048 2049/*===========================================================================*/ 2050static void ray_rx(struct net_device *dev, ray_dev_t *local, 2051 struct rcs __iomem *prcs) 2052{ 2053 int rx_len; 2054 unsigned int pkt_addr; 2055 void __iomem *pmsg; 2056 pr_debug("ray_rx process rx packet\n"); 2057 2058 /* Calculate address of packet within Rx buffer */ 2059 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2060 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2061 /* Length of first packet fragment */ 2062 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2063 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2064 2065 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2066 pmsg = local->rmem + pkt_addr; 2067 switch (readb(pmsg)) { 2068 case DATA_TYPE: 2069 pr_debug("ray_rx data type\n"); 2070 rx_data(dev, prcs, pkt_addr, rx_len); 2071 break; 2072 case AUTHENTIC_TYPE: 2073 pr_debug("ray_rx authentic type\n"); 2074 if (sniffer) 2075 rx_data(dev, prcs, pkt_addr, rx_len); 2076 else 2077 rx_authenticate(local, prcs, pkt_addr, rx_len); 2078 break; 2079 case DEAUTHENTIC_TYPE: 2080 pr_debug("ray_rx deauth type\n"); 2081 if (sniffer) 2082 rx_data(dev, prcs, pkt_addr, rx_len); 2083 else 2084 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2085 break; 2086 case NULL_MSG_TYPE: 2087 pr_debug("ray_cs rx NULL msg\n"); 2088 break; 2089 case BEACON_TYPE: 2090 pr_debug("ray_rx beacon type\n"); 2091 if (sniffer) 2092 rx_data(dev, prcs, pkt_addr, rx_len); 2093 2094 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2095 rx_len < sizeof(struct beacon_rx) ? 2096 rx_len : sizeof(struct beacon_rx)); 2097 2098 local->beacon_rxed = 1; 2099 /* Get the statistics so the card counters never overflow */ 2100 ray_get_stats(dev); 2101 break; 2102 default: 2103 pr_debug("ray_cs unknown pkt type %2x\n", 2104 (unsigned int)readb(pmsg)); 2105 break; 2106 } 2107 2108} /* end ray_rx */ 2109 2110/*===========================================================================*/ 2111static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2112 unsigned int pkt_addr, int rx_len) 2113{ 2114 struct sk_buff *skb = NULL; 2115 struct rcs __iomem *prcslink = prcs; 2116 ray_dev_t *local = netdev_priv(dev); 2117 UCHAR *rx_ptr; 2118 int total_len; 2119 int tmp; 2120#ifdef WIRELESS_SPY 2121 int siglev = local->last_rsl; 2122 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2123#endif 2124 2125 if (!sniffer) { 2126 if (translate) { 2127/* TBD length needs fixing for translated header */ 2128 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2129 rx_len > 2130 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2131 FCS_LEN)) { 2132 pr_debug( 2133 "ray_cs invalid packet length %d received\n", 2134 rx_len); 2135 return; 2136 } 2137 } else { /* encapsulated ethernet */ 2138 2139 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2140 rx_len > 2141 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2142 FCS_LEN)) { 2143 pr_debug( 2144 "ray_cs invalid packet length %d received\n", 2145 rx_len); 2146 return; 2147 } 2148 } 2149 } 2150 pr_debug("ray_cs rx_data packet\n"); 2151 /* If fragmented packet, verify sizes of fragments add up */ 2152 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2153 pr_debug("ray_cs rx'ed fragment\n"); 2154 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2155 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2156 total_len = tmp; 2157 prcslink = prcs; 2158 do { 2159 tmp -= 2160 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2161 << 8) 2162 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2163 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2164 == 0xFF || tmp < 0) 2165 break; 2166 prcslink = rcs_base(local) 2167 + readb(&prcslink->link_field); 2168 } while (1); 2169 2170 if (tmp < 0) { 2171 pr_debug( 2172 "ray_cs rx_data fragment lengths don't add up\n"); 2173 local->stats.rx_dropped++; 2174 release_frag_chain(local, prcs); 2175 return; 2176 } 2177 } else { /* Single unfragmented packet */ 2178 total_len = rx_len; 2179 } 2180 2181 skb = dev_alloc_skb(total_len + 5); 2182 if (skb == NULL) { 2183 pr_debug("ray_cs rx_data could not allocate skb\n"); 2184 local->stats.rx_dropped++; 2185 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2186 release_frag_chain(local, prcs); 2187 return; 2188 } 2189 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2190 2191 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2192 rx_len); 2193 2194/************************/ 2195 /* Reserve enough room for the whole damn packet. */ 2196 rx_ptr = skb_put(skb, total_len); 2197 /* Copy the whole packet to sk_buff */ 2198 rx_ptr += 2199 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2200 /* Get source address */ 2201#ifdef WIRELESS_SPY 2202 skb_copy_from_linear_data_offset(skb, 2203 offsetof(struct mac_header, addr_2), 2204 linksrcaddr, ETH_ALEN); 2205#endif 2206 /* Now, deal with encapsulation/translation/sniffer */ 2207 if (!sniffer) { 2208 if (!translate) { 2209 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2210/* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2211 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2212 } else { 2213 /* Do translation */ 2214 untranslate(local, skb, total_len); 2215 } 2216 } else { /* sniffer mode, so just pass whole packet */ 2217 }; 2218 2219/************************/ 2220 /* Now pick up the rest of the fragments if any */ 2221 tmp = 17; 2222 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2223 prcslink = prcs; 2224 pr_debug("ray_cs rx_data in fragment loop\n"); 2225 do { 2226 prcslink = rcs_base(local) 2227 + 2228 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2229 rx_len = 2230 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2231 << 8) 2232 + 2233 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2234 & RX_BUFF_END; 2235 pkt_addr = 2236 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2237 8) 2238 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2239 & RX_BUFF_END; 2240 2241 rx_ptr += 2242 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2243 2244 } while (tmp-- && 2245 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2246 0xFF); 2247 release_frag_chain(local, prcs); 2248 } 2249 2250 skb->protocol = eth_type_trans(skb, dev); 2251 netif_rx(skb); 2252 local->stats.rx_packets++; 2253 local->stats.rx_bytes += total_len; 2254 2255 /* Gather signal strength per address */ 2256#ifdef WIRELESS_SPY 2257 /* For the Access Point or the node having started the ad-hoc net 2258 * note : ad-hoc work only in some specific configurations, but we 2259 * kludge in ray_get_wireless_stats... */ 2260 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2261 /* Update statistics */ 2262 /*local->wstats.qual.qual = none ? */ 2263 local->wstats.qual.level = siglev; 2264 /*local->wstats.qual.noise = none ? */ 2265 local->wstats.qual.updated = 0x2; 2266 } 2267 /* Now, update the spy stuff */ 2268 { 2269 struct iw_quality wstats; 2270 wstats.level = siglev; 2271 /* wstats.noise = none ? */ 2272 /* wstats.qual = none ? */ 2273 wstats.updated = 0x2; 2274 /* Update spy records */ 2275 wireless_spy_update(dev, linksrcaddr, &wstats); 2276 } 2277#endif /* WIRELESS_SPY */ 2278} /* end rx_data */ 2279 2280/*===========================================================================*/ 2281static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2282{ 2283 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2284 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2285 __be16 type = *(__be16 *) psnap->ethertype; 2286 int delta; 2287 struct ethhdr *peth; 2288 UCHAR srcaddr[ADDRLEN]; 2289 UCHAR destaddr[ADDRLEN]; 2290 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2291 static const UCHAR org_1042[3] = { 0, 0, 0 }; 2292 2293 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2294 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2295 2296#if 0 2297 if { 2298 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", 2299 DUMP_PREFIX_NONE, 16, 1, 2300 skb->data, 64, true); 2301 printk(KERN_DEBUG 2302 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", 2303 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, 2304 psnap->org[0], psnap->org[1], psnap->org[2]); 2305 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data); 2306 } 2307#endif 2308 2309 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2310 /* not a snap type so leave it alone */ 2311 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2312 psnap->dsap, psnap->ssap, psnap->ctrl); 2313 2314 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2315 peth = (struct ethhdr *)(skb->data + delta); 2316 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2317 } else { /* Its a SNAP */ 2318 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2319 /* EtherII and nuke the LLC */ 2320 pr_debug("ray_cs untranslate Bridge encap\n"); 2321 delta = RX_MAC_HEADER_LENGTH 2322 + sizeof(struct snaphdr_t) - ETH_HLEN; 2323 peth = (struct ethhdr *)(skb->data + delta); 2324 peth->h_proto = type; 2325 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2326 switch (ntohs(type)) { 2327 case ETH_P_IPX: 2328 case ETH_P_AARP: 2329 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2330 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2331 peth = (struct ethhdr *)(skb->data + delta); 2332 peth->h_proto = 2333 htons(len - RX_MAC_HEADER_LENGTH); 2334 break; 2335 default: 2336 pr_debug("ray_cs untranslate RFC default\n"); 2337 delta = RX_MAC_HEADER_LENGTH + 2338 sizeof(struct snaphdr_t) - ETH_HLEN; 2339 peth = (struct ethhdr *)(skb->data + delta); 2340 peth->h_proto = type; 2341 break; 2342 } 2343 } else { 2344 printk("ray_cs untranslate very confused by packet\n"); 2345 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2346 peth = (struct ethhdr *)(skb->data + delta); 2347 peth->h_proto = type; 2348 } 2349 } 2350/* TBD reserve skb_reserve(skb, delta); */ 2351 skb_pull(skb, delta); 2352 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2353 skb->data); 2354 memcpy(peth->h_dest, destaddr, ADDRLEN); 2355 memcpy(peth->h_source, srcaddr, ADDRLEN); 2356#if 0 2357 { 2358 int i; 2359 printk(KERN_DEBUG "skb->data after untranslate:"); 2360 for (i = 0; i < 64; i++) 2361 printk("%02x ", skb->data[i]); 2362 printk("\n"); 2363 } 2364#endif 2365} /* end untranslate */ 2366 2367/*===========================================================================*/ 2368/* Copy data from circular receive buffer to PC memory. 2369 * dest = destination address in PC memory 2370 * pkt_addr = source address in receive buffer 2371 * len = length of packet to copy 2372 */ 2373static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2374 int length) 2375{ 2376 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2377 if (wrap_bytes <= 0) { 2378 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2379 } else { /* Packet wrapped in circular buffer */ 2380 2381 memcpy_fromio(dest, local->rmem + pkt_addr, 2382 length - wrap_bytes); 2383 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2384 wrap_bytes); 2385 } 2386 return length; 2387} 2388 2389/*===========================================================================*/ 2390static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2391{ 2392 struct rcs __iomem *prcslink = prcs; 2393 int tmp = 17; 2394 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2395 2396 while (tmp--) { 2397 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2398 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2399 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2400 rcsindex); 2401 break; 2402 } 2403 prcslink = rcs_base(local) + rcsindex; 2404 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2405 } 2406 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2407} 2408 2409/*===========================================================================*/ 2410static void authenticate(ray_dev_t *local) 2411{ 2412 struct pcmcia_device *link = local->finder; 2413 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2414 if (!(pcmcia_dev_present(link))) { 2415 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2416 return; 2417 } 2418 2419 del_timer(&local->timer); 2420 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2421 local->timer.function = join_net; 2422 } else { 2423 local->timer.function = authenticate_timeout; 2424 } 2425 local->timer.expires = jiffies + HZ * 2; 2426 local->timer.data = (long)local; 2427 add_timer(&local->timer); 2428 local->authentication_state = AWAITING_RESPONSE; 2429} /* end authenticate */ 2430 2431/*===========================================================================*/ 2432static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2433 unsigned int pkt_addr, int rx_len) 2434{ 2435 UCHAR buff[256]; 2436 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2437 2438 del_timer(&local->timer); 2439 2440 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2441 /* if we are trying to get authenticated */ 2442 if (local->sparm.b4.a_network_type == ADHOC) { 2443 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n", 2444 msg->var[0], msg->var[1], msg->var[2], msg->var[3], 2445 msg->var[4], msg->var[5]); 2446 if (msg->var[2] == 1) { 2447 pr_debug("ray_cs Sending authentication response.\n"); 2448 if (!build_auth_frame 2449 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2450 local->authentication_state = NEED_TO_AUTH; 2451 memcpy(local->auth_id, msg->mac.addr_2, 2452 ADDRLEN); 2453 } 2454 } 2455 } else { /* Infrastructure network */ 2456 2457 if (local->authentication_state == AWAITING_RESPONSE) { 2458 /* Verify authentication sequence #2 and success */ 2459 if (msg->var[2] == 2) { 2460 if ((msg->var[3] | msg->var[4]) == 0) { 2461 pr_debug("Authentication successful\n"); 2462 local->card_status = CARD_AUTH_COMPLETE; 2463 associate(local); 2464 local->authentication_state = 2465 AUTHENTICATED; 2466 } else { 2467 pr_debug("Authentication refused\n"); 2468 local->card_status = CARD_AUTH_REFUSED; 2469 join_net((u_long) local); 2470 local->authentication_state = 2471 UNAUTHENTICATED; 2472 } 2473 } 2474 } 2475 } 2476 2477} /* end rx_authenticate */ 2478 2479/*===========================================================================*/ 2480static void associate(ray_dev_t *local) 2481{ 2482 struct ccs __iomem *pccs; 2483 struct pcmcia_device *link = local->finder; 2484 struct net_device *dev = link->priv; 2485 int ccsindex; 2486 if (!(pcmcia_dev_present(link))) { 2487 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2488 return; 2489 } 2490 /* If no tx buffers available, return */ 2491 if ((ccsindex = get_free_ccs(local)) < 0) { 2492/* TBD should never be here but... what if we are? */ 2493 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2494 return; 2495 } 2496 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2497 pccs = ccs_base(local) + ccsindex; 2498 /* fill in the CCS */ 2499 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2500 /* Interrupt the firmware to process the command */ 2501 if (interrupt_ecf(local, ccsindex)) { 2502 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2503 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2504 2505 del_timer(&local->timer); 2506 local->timer.expires = jiffies + HZ * 2; 2507 local->timer.data = (long)local; 2508 local->timer.function = join_net; 2509 add_timer(&local->timer); 2510 local->card_status = CARD_ASSOC_FAILED; 2511 return; 2512 } 2513 if (!sniffer) 2514 netif_start_queue(dev); 2515 2516} /* end associate */ 2517 2518/*===========================================================================*/ 2519static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2520 unsigned int pkt_addr, int rx_len) 2521{ 2522/* UCHAR buff[256]; 2523 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2524*/ 2525 pr_debug("Deauthentication frame received\n"); 2526 local->authentication_state = UNAUTHENTICATED; 2527 /* Need to reauthenticate or rejoin depending on reason code */ 2528/* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2529 */ 2530} 2531 2532/*===========================================================================*/ 2533static void clear_interrupt(ray_dev_t *local) 2534{ 2535 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2536} 2537 2538/*===========================================================================*/ 2539#ifdef CONFIG_PROC_FS 2540#define MAXDATA (PAGE_SIZE - 80) 2541 2542static const char *card_status[] = { 2543 "Card inserted - uninitialized", /* 0 */ 2544 "Card not downloaded", /* 1 */ 2545 "Waiting for download parameters", /* 2 */ 2546 "Card doing acquisition", /* 3 */ 2547 "Acquisition complete", /* 4 */ 2548 "Authentication complete", /* 5 */ 2549 "Association complete", /* 6 */ 2550 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2551 "Card init error", /* 11 */ 2552 "Download parameters error", /* 12 */ 2553 "???", /* 13 */ 2554 "Acquisition failed", /* 14 */ 2555 "Authentication refused", /* 15 */ 2556 "Association failed" /* 16 */ 2557}; 2558 2559static const char *nettype[] = { "Adhoc", "Infra " }; 2560static const char *framing[] = { "Encapsulation", "Translation" } 2561 2562; 2563/*===========================================================================*/ 2564static int ray_cs_proc_show(struct seq_file *m, void *v) 2565{ 2566/* Print current values which are not available via other means 2567 * eg ifconfig 2568 */ 2569 int i; 2570 struct pcmcia_device *link; 2571 struct net_device *dev; 2572 ray_dev_t *local; 2573 UCHAR *p; 2574 struct freq_hop_element *pfh; 2575 UCHAR c[33]; 2576 2577 link = this_device; 2578 if (!link) 2579 return 0; 2580 dev = (struct net_device *)link->priv; 2581 if (!dev) 2582 return 0; 2583 local = netdev_priv(dev); 2584 if (!local) 2585 return 0; 2586 2587 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2588 seq_printf(m, "%s\n", rcsid); 2589 /* build 4 does not report version, and field is 0x55 after memtest */ 2590 seq_puts(m, "Firmware version = "); 2591 if (local->fw_ver == 0x55) 2592 seq_puts(m, "4 - Use dump_cis for more details\n"); 2593 else 2594 seq_printf(m, "%2d.%02d.%02d\n", 2595 local->fw_ver, local->fw_bld, local->fw_var); 2596 2597 for (i = 0; i < 32; i++) 2598 c[i] = local->sparm.b5.a_current_ess_id[i]; 2599 c[32] = 0; 2600 seq_printf(m, "%s network ESSID = \"%s\"\n", 2601 nettype[local->sparm.b5.a_network_type], c); 2602 2603 p = local->bss_id; 2604 seq_printf(m, "BSSID = %pM\n", p); 2605 2606 seq_printf(m, "Country code = %d\n", 2607 local->sparm.b5.a_curr_country_code); 2608 2609 i = local->card_status; 2610 if (i < 0) 2611 i = 10; 2612 if (i > 16) 2613 i = 10; 2614 seq_printf(m, "Card status = %s\n", card_status[i]); 2615 2616 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2617 2618 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2619 2620 if (local->beacon_rxed) { 2621 /* Pull some fields out of last beacon received */ 2622 seq_printf(m, "Beacon Interval = %d Kus\n", 2623 local->last_bcn.beacon_intvl[0] 2624 + 256 * local->last_bcn.beacon_intvl[1]); 2625 2626 p = local->last_bcn.elements; 2627 if (p[0] == C_ESSID_ELEMENT_ID) 2628 p += p[1] + 2; 2629 else { 2630 seq_printf(m, 2631 "Parse beacon failed at essid element id = %d\n", 2632 p[0]); 2633 return 0; 2634 } 2635 2636 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2637 seq_puts(m, "Supported rate codes = "); 2638 for (i = 2; i < p[1] + 2; i++) 2639 seq_printf(m, "0x%02x ", p[i]); 2640 seq_putc(m, '\n'); 2641 p += p[1] + 2; 2642 } else { 2643 seq_puts(m, "Parse beacon failed at rates element\n"); 2644 return 0; 2645 } 2646 2647 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2648 pfh = (struct freq_hop_element *)p; 2649 seq_printf(m, "Hop dwell = %d Kus\n", 2650 pfh->dwell_time[0] + 2651 256 * pfh->dwell_time[1]); 2652 seq_printf(m, "Hop set = %d\n", 2653 pfh->hop_set); 2654 seq_printf(m, "Hop pattern = %d\n", 2655 pfh->hop_pattern); 2656 seq_printf(m, "Hop index = %d\n", 2657 pfh->hop_index); 2658 p += p[1] + 2; 2659 } else { 2660 seq_puts(m, 2661 "Parse beacon failed at FH param element\n"); 2662 return 0; 2663 } 2664 } else { 2665 seq_puts(m, "No beacons received\n"); 2666 } 2667 return 0; 2668} 2669 2670static int ray_cs_proc_open(struct inode *inode, struct file *file) 2671{ 2672 return single_open(file, ray_cs_proc_show, NULL); 2673} 2674 2675static const struct file_operations ray_cs_proc_fops = { 2676 .owner = THIS_MODULE, 2677 .open = ray_cs_proc_open, 2678 .read = seq_read, 2679 .llseek = seq_lseek, 2680 .release = single_release, 2681}; 2682#endif 2683/*===========================================================================*/ 2684static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2685{ 2686 int addr; 2687 struct ccs __iomem *pccs; 2688 struct tx_msg __iomem *ptx; 2689 int ccsindex; 2690 2691 /* If no tx buffers available, return */ 2692 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2693 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2694 return -1; 2695 } 2696 2697 pccs = ccs_base(local) + ccsindex; 2698 2699 /* Address in card space */ 2700 addr = TX_BUF_BASE + (ccsindex << 11); 2701 /* fill in the CCS */ 2702 writeb(CCS_TX_REQUEST, &pccs->cmd); 2703 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2704 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2705 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2706 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2707 pccs->var.tx_request.tx_data_length + 1); 2708 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2709 2710 ptx = local->sram + addr; 2711 /* fill in the mac header */ 2712 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2713 writeb(0, &ptx->mac.frame_ctl_2); 2714 2715 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2716 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2717 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2718 2719 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2720 memset_io(ptx->var, 0, 6); 2721 writeb(auth_type & 0xff, ptx->var + 2); 2722 2723 /* Interrupt the firmware to process the command */ 2724 if (interrupt_ecf(local, ccsindex)) { 2725 pr_debug( 2726 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2727 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2728 return -1; 2729 } 2730 return 0; 2731} /* End build_auth_frame */ 2732 2733/*===========================================================================*/ 2734#ifdef CONFIG_PROC_FS 2735static ssize_t ray_cs_essid_proc_write(struct file *file, 2736 const char __user *buffer, size_t count, loff_t *pos) 2737{ 2738 static char proc_essid[33]; 2739 unsigned int len = count; 2740 2741 if (len > 32) 2742 len = 32; 2743 memset(proc_essid, 0, 33); 2744 if (copy_from_user(proc_essid, buffer, len)) 2745 return -EFAULT; 2746 essid = proc_essid; 2747 return count; 2748} 2749 2750static const struct file_operations ray_cs_essid_proc_fops = { 2751 .owner = THIS_MODULE, 2752 .write = ray_cs_essid_proc_write, 2753 .llseek = noop_llseek, 2754}; 2755 2756static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2757 size_t count, loff_t *pos) 2758{ 2759 static char proc_number[10]; 2760 char *p; 2761 int nr, len; 2762 2763 if (!count) 2764 return 0; 2765 2766 if (count > 9) 2767 return -EINVAL; 2768 if (copy_from_user(proc_number, buffer, count)) 2769 return -EFAULT; 2770 p = proc_number; 2771 nr = 0; 2772 len = count; 2773 do { 2774 unsigned int c = *p - '0'; 2775 if (c > 9) 2776 return -EINVAL; 2777 nr = nr * 10 + c; 2778 p++; 2779 } while (--len); 2780 *(int *)PDE_DATA(file_inode(file)) = nr; 2781 return count; 2782} 2783 2784static const struct file_operations int_proc_fops = { 2785 .owner = THIS_MODULE, 2786 .write = int_proc_write, 2787 .llseek = noop_llseek, 2788}; 2789#endif 2790 2791static const struct pcmcia_device_id ray_ids[] = { 2792 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2793 PCMCIA_DEVICE_NULL, 2794}; 2795 2796MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2797 2798static struct pcmcia_driver ray_driver = { 2799 .owner = THIS_MODULE, 2800 .name = "ray_cs", 2801 .probe = ray_probe, 2802 .remove = ray_detach, 2803 .id_table = ray_ids, 2804 .suspend = ray_suspend, 2805 .resume = ray_resume, 2806}; 2807 2808static int __init init_ray_cs(void) 2809{ 2810 int rc; 2811 2812 pr_debug("%s\n", rcsid); 2813 rc = pcmcia_register_driver(&ray_driver); 2814 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2815 rc); 2816 2817#ifdef CONFIG_PROC_FS 2818 proc_mkdir("driver/ray_cs", NULL); 2819 2820 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops); 2821 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops); 2822 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type); 2823 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate); 2824#endif 2825 if (translate != 0) 2826 translate = 1; 2827 return 0; 2828} /* init_ray_cs */ 2829 2830/*===========================================================================*/ 2831 2832static void __exit exit_ray_cs(void) 2833{ 2834 pr_debug("ray_cs: cleanup_module\n"); 2835 2836#ifdef CONFIG_PROC_FS 2837 remove_proc_entry("driver/ray_cs/ray_cs", NULL); 2838 remove_proc_entry("driver/ray_cs/essid", NULL); 2839 remove_proc_entry("driver/ray_cs/net_type", NULL); 2840 remove_proc_entry("driver/ray_cs/translate", NULL); 2841 remove_proc_entry("driver/ray_cs", NULL); 2842#endif 2843 2844 pcmcia_unregister_driver(&ray_driver); 2845} /* exit_ray_cs */ 2846 2847module_init(init_ray_cs); 2848module_exit(exit_ray_cs); 2849 2850/*===========================================================================*/ 2851