1 // SPDX-License-Identifier: GPL-2.0-only 2 /*============================================================================= 3 * 4 * A PCMCIA client driver for the Raylink wireless LAN card. 5 * The starting point for this module was the skeleton.c in the 6 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net 7 * 8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com) 9 * 10 * Changes: 11 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000 12 * - reorganize kmallocs in ray_attach, checking all for failure 13 * and releasing the previous allocations if one fails 14 * 15 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003 16 * - Audit copy_to_user in ioctl(SIOCGIWESSID) 17 * 18 =============================================================================*/ 19 20 #include <linux/module.h> 21 #include <linux/kernel.h> 22 #include <linux/proc_fs.h> 23 #include <linux/ptrace.h> 24 #include <linux/seq_file.h> 25 #include <linux/string.h> 26 #include <linux/timer.h> 27 #include <linux/init.h> 28 #include <linux/netdevice.h> 29 #include <linux/etherdevice.h> 30 #include <linux/if_arp.h> 31 #include <linux/ioport.h> 32 #include <linux/skbuff.h> 33 #include <linux/ieee80211.h> 34 35 #include <pcmcia/cistpl.h> 36 #include <pcmcia/cisreg.h> 37 #include <pcmcia/ds.h> 38 39 #include <linux/wireless.h> 40 #include <net/iw_handler.h> 41 42 #include <asm/io.h> 43 #include <asm/byteorder.h> 44 #include <linux/uaccess.h> 45 46 /* Warning : these stuff will slow down the driver... */ 47 #define WIRELESS_SPY /* Enable spying addresses */ 48 /* Definitions we need for spy */ 49 typedef struct iw_statistics iw_stats; 50 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */ 51 52 #include "rayctl.h" 53 #include "ray_cs.h" 54 55 56 /** Prototypes based on PCMCIA skeleton driver *******************************/ 57 static int ray_config(struct pcmcia_device *link); 58 static void ray_release(struct pcmcia_device *link); 59 static void ray_detach(struct pcmcia_device *p_dev); 60 61 /***** Prototypes indicated by device structure ******************************/ 62 static int ray_dev_close(struct net_device *dev); 63 static int ray_dev_config(struct net_device *dev, struct ifmap *map); 64 static struct net_device_stats *ray_get_stats(struct net_device *dev); 65 static int ray_dev_init(struct net_device *dev); 66 67 static int ray_open(struct net_device *dev); 68 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 69 struct net_device *dev); 70 static void set_multicast_list(struct net_device *dev); 71 static void ray_update_multi_list(struct net_device *dev, int all); 72 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 73 unsigned char *data, int len); 74 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 75 UCHAR msg_type, unsigned char *data); 76 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len); 77 static iw_stats *ray_get_wireless_stats(struct net_device *dev); 78 static const struct iw_handler_def ray_handler_def; 79 80 /***** Prototypes for raylink functions **************************************/ 81 static void authenticate(ray_dev_t *local); 82 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type); 83 static void authenticate_timeout(struct timer_list *t); 84 static int get_free_ccs(ray_dev_t *local); 85 static int get_free_tx_ccs(ray_dev_t *local); 86 static void init_startup_params(ray_dev_t *local); 87 static int parse_addr(char *in_str, UCHAR *out); 88 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type); 89 static int ray_init(struct net_device *dev); 90 static int interrupt_ecf(ray_dev_t *local, int ccs); 91 static void ray_reset(struct net_device *dev); 92 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len); 93 static void verify_dl_startup(struct timer_list *t); 94 95 /* Prototypes for interrpt time functions **********************************/ 96 static irqreturn_t ray_interrupt(int reg, void *dev_id); 97 static void clear_interrupt(ray_dev_t *local); 98 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 99 unsigned int pkt_addr, int rx_len); 100 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len); 101 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs); 102 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs); 103 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 104 unsigned int pkt_addr, int rx_len); 105 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 106 unsigned int pkt_addr, int rx_len); 107 static void associate(ray_dev_t *local); 108 109 /* Card command functions */ 110 static int dl_startup_params(struct net_device *dev); 111 static void join_net(struct timer_list *t); 112 static void start_net(struct timer_list *t); 113 114 /*===========================================================================*/ 115 /* Parameters that can be set with 'insmod' */ 116 117 /* ADHOC=0, Infrastructure=1 */ 118 static int net_type = ADHOC; 119 120 /* Hop dwell time in Kus (1024 us units defined by 802.11) */ 121 static int hop_dwell = 128; 122 123 /* Beacon period in Kus */ 124 static int beacon_period = 256; 125 126 /* power save mode (0 = off, 1 = save power) */ 127 static int psm; 128 129 /* String for network's Extended Service Set ID. 32 Characters max */ 130 static char *essid; 131 132 /* Default to encapsulation unless translation requested */ 133 static bool translate = true; 134 135 static int country = USA; 136 137 static int sniffer; 138 139 static int bc; 140 141 /* 48 bit physical card address if overriding card's real physical 142 * address is required. Since IEEE 802.11 addresses are 48 bits 143 * like ethernet, an int can't be used, so a string is used. To 144 * allow use of addresses starting with a decimal digit, the first 145 * character must be a letter and will be ignored. This letter is 146 * followed by up to 12 hex digits which are the address. If less 147 * than 12 digits are used, the address will be left filled with 0's. 148 * Note that bit 0 of the first byte is the broadcast bit, and evil 149 * things will happen if it is not 0 in a card address. 150 */ 151 static char *phy_addr = NULL; 152 153 static unsigned int ray_mem_speed = 500; 154 155 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ 156 static struct pcmcia_device *this_device = NULL; 157 158 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>"); 159 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver"); 160 MODULE_LICENSE("GPL"); 161 162 module_param(net_type, int, 0); 163 module_param(hop_dwell, int, 0); 164 module_param(beacon_period, int, 0); 165 module_param(psm, int, 0); 166 module_param(essid, charp, 0); 167 module_param(translate, bool, 0); 168 module_param(country, int, 0); 169 module_param(sniffer, int, 0); 170 module_param(bc, int, 0); 171 module_param(phy_addr, charp, 0); 172 module_param(ray_mem_speed, int, 0); 173 174 static const UCHAR b5_default_startup_parms[] = { 175 0, 0, /* Adhoc station */ 176 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 177 0, 0, 0, 0, 0, 0, 0, 0, 178 0, 0, 0, 0, 0, 0, 0, 0, 179 0, 0, 0, 0, 0, 0, 0, 0, 180 1, 0, /* Active scan, CA Mode */ 181 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 182 0x7f, 0xff, /* Frag threshold */ 183 0x00, 0x80, /* Hop time 128 Kus */ 184 0x01, 0x00, /* Beacon period 256 Kus */ 185 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 186 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */ 187 0x7f, 0xff, /* RTS threshold */ 188 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */ 189 0x05, /* assoc resp timeout thresh */ 190 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */ 191 0, /* Promiscuous mode */ 192 0x0c, 0x0bd, /* Unique word */ 193 0x32, /* Slot time */ 194 0xff, 0xff, /* roam-low snr, low snr count */ 195 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 196 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */ 197 /* b4 - b5 differences start here */ 198 0x00, 0x3f, /* CW max */ 199 0x00, 0x0f, /* CW min */ 200 0x04, 0x08, /* Noise gain, limit offset */ 201 0x28, 0x28, /* det rssi, med busy offsets */ 202 7, /* det sync thresh */ 203 0, 2, 2, /* test mode, min, max */ 204 0, /* allow broadcast SSID probe resp */ 205 0, 0, /* privacy must start, can join */ 206 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */ 207 }; 208 209 static const UCHAR b4_default_startup_parms[] = { 210 0, 0, /* Adhoc station */ 211 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 212 0, 0, 0, 0, 0, 0, 0, 0, 213 0, 0, 0, 0, 0, 0, 0, 0, 214 0, 0, 0, 0, 0, 0, 0, 0, 215 1, 0, /* Active scan, CA Mode */ 216 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 217 0x7f, 0xff, /* Frag threshold */ 218 0x02, 0x00, /* Hop time */ 219 0x00, 0x01, /* Beacon period */ 220 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 221 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */ 222 0x7f, 0xff, /* RTS threshold */ 223 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */ 224 0x05, /* assoc resp timeout thresh */ 225 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */ 226 0, /* Promiscuous mode */ 227 0x0c, 0x0bd, /* Unique word */ 228 0x4e, /* Slot time (TBD seems wrong) */ 229 0xff, 0xff, /* roam-low snr, low snr count */ 230 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 231 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */ 232 /* b4 - b5 differences start here */ 233 0x3f, 0x0f, /* CW max, min */ 234 0x04, 0x08, /* Noise gain, limit offset */ 235 0x28, 0x28, /* det rssi, med busy offsets */ 236 7, /* det sync thresh */ 237 0, 2, 2, /* test mode, min, max */ 238 0, /* rx/tx delay */ 239 0, 0, 0, 0, 0, 0, /* current BSS id */ 240 0 /* hop set */ 241 }; 242 243 /*===========================================================================*/ 244 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; 245 246 static const char hop_pattern_length[] = { 1, 247 USA_HOP_MOD, EUROPE_HOP_MOD, 248 JAPAN_HOP_MOD, KOREA_HOP_MOD, 249 SPAIN_HOP_MOD, FRANCE_HOP_MOD, 250 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD, 251 JAPAN_TEST_HOP_MOD 252 }; 253 254 static const char rcsid[] = 255 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; 256 257 static const struct net_device_ops ray_netdev_ops = { 258 .ndo_init = ray_dev_init, 259 .ndo_open = ray_open, 260 .ndo_stop = ray_dev_close, 261 .ndo_start_xmit = ray_dev_start_xmit, 262 .ndo_set_config = ray_dev_config, 263 .ndo_get_stats = ray_get_stats, 264 .ndo_set_rx_mode = set_multicast_list, 265 .ndo_set_mac_address = eth_mac_addr, 266 .ndo_validate_addr = eth_validate_addr, 267 }; 268 269 static int ray_probe(struct pcmcia_device *p_dev) 270 { 271 ray_dev_t *local; 272 struct net_device *dev; 273 int ret; 274 275 dev_dbg(&p_dev->dev, "ray_attach()\n"); 276 277 /* Allocate space for private device-specific data */ 278 dev = alloc_etherdev(sizeof(ray_dev_t)); 279 if (!dev) 280 return -ENOMEM; 281 282 local = netdev_priv(dev); 283 local->finder = p_dev; 284 285 /* The io structure describes IO port mapping. None used here */ 286 p_dev->resource[0]->end = 0; 287 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 288 289 /* General socket configuration */ 290 p_dev->config_flags |= CONF_ENABLE_IRQ; 291 p_dev->config_index = 1; 292 293 p_dev->priv = dev; 294 295 local->finder = p_dev; 296 local->card_status = CARD_INSERTED; 297 local->authentication_state = UNAUTHENTICATED; 298 local->num_multi = 0; 299 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 300 p_dev, dev, local, &ray_interrupt); 301 302 /* Raylink entries in the device structure */ 303 dev->netdev_ops = &ray_netdev_ops; 304 dev->wireless_handlers = &ray_handler_def; 305 #ifdef WIRELESS_SPY 306 local->wireless_data.spy_data = &local->spy_data; 307 dev->wireless_data = &local->wireless_data; 308 #endif /* WIRELESS_SPY */ 309 310 311 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 312 netif_stop_queue(dev); 313 314 timer_setup(&local->timer, NULL, 0); 315 316 this_device = p_dev; 317 ret = ray_config(p_dev); 318 if (ret) 319 goto err_free_dev; 320 321 return 0; 322 323 err_free_dev: 324 free_netdev(dev); 325 return ret; 326 } 327 328 static void ray_detach(struct pcmcia_device *link) 329 { 330 struct net_device *dev; 331 ray_dev_t *local; 332 333 dev_dbg(&link->dev, "ray_detach\n"); 334 335 this_device = NULL; 336 dev = link->priv; 337 338 ray_release(link); 339 340 local = netdev_priv(dev); 341 del_timer_sync(&local->timer); 342 343 if (link->priv) { 344 unregister_netdev(dev); 345 free_netdev(dev); 346 } 347 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 348 } /* ray_detach */ 349 350 #define MAX_TUPLE_SIZE 128 351 static int ray_config(struct pcmcia_device *link) 352 { 353 int ret = 0; 354 int i; 355 struct net_device *dev = (struct net_device *)link->priv; 356 ray_dev_t *local = netdev_priv(dev); 357 358 dev_dbg(&link->dev, "ray_config\n"); 359 360 /* Determine card type and firmware version */ 361 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 362 link->prod_id[0] ? link->prod_id[0] : " ", 363 link->prod_id[1] ? link->prod_id[1] : " ", 364 link->prod_id[2] ? link->prod_id[2] : " ", 365 link->prod_id[3] ? link->prod_id[3] : " "); 366 367 /* Now allocate an interrupt line. Note that this does not 368 actually assign a handler to the interrupt. 369 */ 370 ret = pcmcia_request_irq(link, ray_interrupt); 371 if (ret) 372 goto failed; 373 dev->irq = link->irq; 374 375 ret = pcmcia_enable_device(link); 376 if (ret) 377 goto failed; 378 379 /*** Set up 32k window for shared memory (transmit and control) ************/ 380 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 381 link->resource[2]->start = 0; 382 link->resource[2]->end = 0x8000; 383 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); 384 if (ret) 385 goto failed; 386 ret = pcmcia_map_mem_page(link, link->resource[2], 0); 387 if (ret) 388 goto failed; 389 local->sram = ioremap(link->resource[2]->start, 390 resource_size(link->resource[2])); 391 if (!local->sram) 392 goto failed; 393 394 /*** Set up 16k window for shared memory (receive buffer) ***************/ 395 link->resource[3]->flags |= 396 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 397 link->resource[3]->start = 0; 398 link->resource[3]->end = 0x4000; 399 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); 400 if (ret) 401 goto failed; 402 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); 403 if (ret) 404 goto failed; 405 local->rmem = ioremap(link->resource[3]->start, 406 resource_size(link->resource[3])); 407 if (!local->rmem) 408 goto failed; 409 410 /*** Set up window for attribute memory ***********************************/ 411 link->resource[4]->flags |= 412 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 413 link->resource[4]->start = 0; 414 link->resource[4]->end = 0x1000; 415 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); 416 if (ret) 417 goto failed; 418 ret = pcmcia_map_mem_page(link, link->resource[4], 0); 419 if (ret) 420 goto failed; 421 local->amem = ioremap(link->resource[4]->start, 422 resource_size(link->resource[4])); 423 if (!local->amem) 424 goto failed; 425 426 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 427 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 428 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 429 if (ray_init(dev) < 0) { 430 ray_release(link); 431 return -ENODEV; 432 } 433 434 SET_NETDEV_DEV(dev, &link->dev); 435 i = register_netdev(dev); 436 if (i != 0) { 437 printk("ray_config register_netdev() failed\n"); 438 ray_release(link); 439 return i; 440 } 441 442 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 443 dev->name, dev->irq, dev->dev_addr); 444 445 return 0; 446 447 failed: 448 ray_release(link); 449 return -ENODEV; 450 } /* ray_config */ 451 452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 453 { 454 return dev->sram + CCS_BASE; 455 } 456 457 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 458 { 459 /* 460 * This looks nonsensical, since there is a separate 461 * RCS_BASE. But the difference between a "struct rcs" 462 * and a "struct ccs" ends up being in the _index_ off 463 * the base, so the base pointer is the same for both 464 * ccs/rcs. 465 */ 466 return dev->sram + CCS_BASE; 467 } 468 469 /*===========================================================================*/ 470 static int ray_init(struct net_device *dev) 471 { 472 int i; 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 memcpy(&local->sparm.b4.a_mac_addr, 517 &local->startup_res.station_addr, ADDRLEN); 518 } 519 520 clear_interrupt(local); /* Clear any interrupt from the card */ 521 local->card_status = CARD_AWAITING_PARAM; 522 dev_dbg(&link->dev, "ray_init ending\n"); 523 return 0; 524 } /* ray_init */ 525 526 /*===========================================================================*/ 527 /* Download startup parameters to the card and command it to read them */ 528 static int dl_startup_params(struct net_device *dev) 529 { 530 int ccsindex; 531 ray_dev_t *local = netdev_priv(dev); 532 struct ccs __iomem *pccs; 533 struct pcmcia_device *link = local->finder; 534 535 dev_dbg(&link->dev, "dl_startup_params entered\n"); 536 if (!(pcmcia_dev_present(link))) { 537 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 538 return -1; 539 } 540 541 /* Copy parameters to host to ECF area */ 542 if (local->fw_ver == 0x55) 543 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 544 sizeof(struct b4_startup_params)); 545 else 546 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 547 sizeof(struct b5_startup_params)); 548 549 /* Fill in the CCS fields for the ECF */ 550 if ((ccsindex = get_free_ccs(local)) < 0) 551 return -1; 552 local->dl_param_ccs = ccsindex; 553 pccs = ccs_base(local) + ccsindex; 554 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 555 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 556 local->dl_param_ccs); 557 /* Interrupt the firmware to process the command */ 558 if (interrupt_ecf(local, ccsindex)) { 559 printk(KERN_INFO "ray dl_startup_params failed - " 560 "ECF not ready for intr\n"); 561 local->card_status = CARD_DL_PARAM_ERROR; 562 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 563 return -2; 564 } 565 local->card_status = CARD_DL_PARAM; 566 /* Start kernel timer to wait for dl startup to complete. */ 567 local->timer.expires = jiffies + HZ / 2; 568 local->timer.function = verify_dl_startup; 569 add_timer(&local->timer); 570 dev_dbg(&link->dev, 571 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 572 return 0; 573 } /* dl_startup_params */ 574 575 /*===========================================================================*/ 576 static void init_startup_params(ray_dev_t *local) 577 { 578 int i; 579 580 if (country > JAPAN_TEST) 581 country = USA; 582 else if (country < USA) 583 country = USA; 584 /* structure for hop time and beacon period is defined here using 585 * New 802.11D6.1 format. Card firmware is still using old format 586 * until version 6. 587 * Before After 588 * a_hop_time ms byte a_hop_time ms byte 589 * a_hop_time 2s byte a_hop_time ls byte 590 * a_hop_time ls byte a_beacon_period ms byte 591 * a_beacon_period a_beacon_period ls byte 592 * 593 * a_hop_time = uS a_hop_time = KuS 594 * a_beacon_period = hops a_beacon_period = KuS 595 *//* 64ms = 010000 */ 596 if (local->fw_ver == 0x55) { 597 memcpy(&local->sparm.b4, b4_default_startup_parms, 598 sizeof(struct b4_startup_params)); 599 /* Translate sane kus input values to old build 4/5 format */ 600 /* i = hop time in uS truncated to 3 bytes */ 601 i = (hop_dwell * 1024) & 0xffffff; 602 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 603 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 604 local->sparm.b4.a_beacon_period[0] = 0; 605 local->sparm.b4.a_beacon_period[1] = 606 ((beacon_period / hop_dwell) - 1) & 0xff; 607 local->sparm.b4.a_curr_country_code = country; 608 local->sparm.b4.a_hop_pattern_length = 609 hop_pattern_length[(int)country] - 1; 610 if (bc) { 611 local->sparm.b4.a_ack_timeout = 0x50; 612 local->sparm.b4.a_sifs = 0x3f; 613 } 614 } else { /* Version 5 uses real kus values */ 615 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 616 sizeof(struct b5_startup_params)); 617 618 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 619 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 620 local->sparm.b5.a_beacon_period[0] = 621 (beacon_period >> 8) & 0xff; 622 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 623 if (psm) 624 local->sparm.b5.a_power_mgt_state = 1; 625 local->sparm.b5.a_curr_country_code = country; 626 local->sparm.b5.a_hop_pattern_length = 627 hop_pattern_length[(int)country]; 628 } 629 630 local->sparm.b4.a_network_type = net_type & 0x01; 631 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 632 633 if (essid != NULL) 634 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 635 } /* init_startup_params */ 636 637 /*===========================================================================*/ 638 static void verify_dl_startup(struct timer_list *t) 639 { 640 ray_dev_t *local = from_timer(local, t, timer); 641 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 642 UCHAR status; 643 struct pcmcia_device *link = local->finder; 644 645 if (!(pcmcia_dev_present(link))) { 646 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 647 return; 648 } 649 #if 0 650 { 651 int i; 652 printk(KERN_DEBUG 653 "verify_dl_startup parameters sent via ccs %d:\n", 654 local->dl_param_ccs); 655 for (i = 0; i < sizeof(struct b5_startup_params); i++) { 656 printk(" %2x", 657 (unsigned int)readb(local->sram + 658 HOST_TO_ECF_BASE + i)); 659 } 660 printk("\n"); 661 } 662 #endif 663 664 status = readb(&pccs->buffer_status); 665 if (status != CCS_BUFFER_FREE) { 666 printk(KERN_INFO 667 "Download startup params failed. Status = %d\n", 668 status); 669 local->card_status = CARD_DL_PARAM_ERROR; 670 return; 671 } 672 if (local->sparm.b4.a_network_type == ADHOC) 673 start_net(&local->timer); 674 else 675 join_net(&local->timer); 676 } /* end verify_dl_startup */ 677 678 /*===========================================================================*/ 679 /* Command card to start a network */ 680 static void start_net(struct timer_list *t) 681 { 682 ray_dev_t *local = from_timer(local, t, timer); 683 struct ccs __iomem *pccs; 684 int ccsindex; 685 struct pcmcia_device *link = local->finder; 686 if (!(pcmcia_dev_present(link))) { 687 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 688 return; 689 } 690 /* Fill in the CCS fields for the ECF */ 691 if ((ccsindex = get_free_ccs(local)) < 0) 692 return; 693 pccs = ccs_base(local) + ccsindex; 694 writeb(CCS_START_NETWORK, &pccs->cmd); 695 writeb(0, &pccs->var.start_network.update_param); 696 /* Interrupt the firmware to process the command */ 697 if (interrupt_ecf(local, ccsindex)) { 698 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 699 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 700 return; 701 } 702 local->card_status = CARD_DOING_ACQ; 703 } /* end start_net */ 704 705 /*===========================================================================*/ 706 /* Command card to join a network */ 707 static void join_net(struct timer_list *t) 708 { 709 ray_dev_t *local = from_timer(local, t, timer); 710 711 struct ccs __iomem *pccs; 712 int ccsindex; 713 struct pcmcia_device *link = local->finder; 714 715 if (!(pcmcia_dev_present(link))) { 716 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 717 return; 718 } 719 /* Fill in the CCS fields for the ECF */ 720 if ((ccsindex = get_free_ccs(local)) < 0) 721 return; 722 pccs = ccs_base(local) + ccsindex; 723 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 724 writeb(0, &pccs->var.join_network.update_param); 725 writeb(0, &pccs->var.join_network.net_initiated); 726 /* Interrupt the firmware to process the command */ 727 if (interrupt_ecf(local, ccsindex)) { 728 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 729 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 730 return; 731 } 732 local->card_status = CARD_DOING_ACQ; 733 } 734 735 736 static void ray_release(struct pcmcia_device *link) 737 { 738 struct net_device *dev = link->priv; 739 ray_dev_t *local = netdev_priv(dev); 740 741 dev_dbg(&link->dev, "ray_release\n"); 742 743 del_timer(&local->timer); 744 745 iounmap(local->sram); 746 iounmap(local->rmem); 747 iounmap(local->amem); 748 pcmcia_disable_device(link); 749 750 dev_dbg(&link->dev, "ray_release ending\n"); 751 } 752 753 static int ray_suspend(struct pcmcia_device *link) 754 { 755 struct net_device *dev = link->priv; 756 757 if (link->open) 758 netif_device_detach(dev); 759 760 return 0; 761 } 762 763 static int ray_resume(struct pcmcia_device *link) 764 { 765 struct net_device *dev = link->priv; 766 767 if (link->open) { 768 ray_reset(dev); 769 netif_device_attach(dev); 770 } 771 772 return 0; 773 } 774 775 /*===========================================================================*/ 776 static int ray_dev_init(struct net_device *dev) 777 { 778 #ifdef RAY_IMMEDIATE_INIT 779 int i; 780 #endif /* RAY_IMMEDIATE_INIT */ 781 ray_dev_t *local = netdev_priv(dev); 782 struct pcmcia_device *link = local->finder; 783 784 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 785 if (!(pcmcia_dev_present(link))) { 786 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 787 return -1; 788 } 789 #ifdef RAY_IMMEDIATE_INIT 790 /* Download startup parameters */ 791 if ((i = dl_startup_params(dev)) < 0) { 792 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 793 "returns 0x%x\n", i); 794 return -1; 795 } 796 #else /* RAY_IMMEDIATE_INIT */ 797 /* Postpone the card init so that we can still configure the card, 798 * for example using the Wireless Extensions. The init will happen 799 * in ray_open() - Jean II */ 800 dev_dbg(&link->dev, 801 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 802 local->card_status); 803 #endif /* RAY_IMMEDIATE_INIT */ 804 805 /* copy mac and broadcast addresses to linux device */ 806 eth_hw_addr_set(dev, local->sparm.b4.a_mac_addr); 807 eth_broadcast_addr(dev->broadcast); 808 809 dev_dbg(&link->dev, "ray_dev_init ending\n"); 810 return 0; 811 } 812 813 /*===========================================================================*/ 814 static int ray_dev_config(struct net_device *dev, struct ifmap *map) 815 { 816 ray_dev_t *local = netdev_priv(dev); 817 struct pcmcia_device *link = local->finder; 818 /* Dummy routine to satisfy device structure */ 819 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 820 if (!(pcmcia_dev_present(link))) { 821 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 822 return -1; 823 } 824 825 return 0; 826 } 827 828 /*===========================================================================*/ 829 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 830 struct net_device *dev) 831 { 832 ray_dev_t *local = netdev_priv(dev); 833 struct pcmcia_device *link = local->finder; 834 short length = skb->len; 835 836 if (!pcmcia_dev_present(link)) { 837 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 838 dev_kfree_skb(skb); 839 return NETDEV_TX_OK; 840 } 841 842 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 843 if (local->authentication_state == NEED_TO_AUTH) { 844 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 845 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 846 local->authentication_state = AUTHENTICATED; 847 netif_stop_queue(dev); 848 return NETDEV_TX_BUSY; 849 } 850 } 851 852 if (length < ETH_ZLEN) { 853 if (skb_padto(skb, ETH_ZLEN)) 854 return NETDEV_TX_OK; 855 length = ETH_ZLEN; 856 } 857 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 858 case XMIT_NO_CCS: 859 case XMIT_NEED_AUTH: 860 netif_stop_queue(dev); 861 return NETDEV_TX_BUSY; 862 case XMIT_NO_INTR: 863 case XMIT_MSG_BAD: 864 case XMIT_OK: 865 default: 866 dev_kfree_skb(skb); 867 } 868 869 return NETDEV_TX_OK; 870 } /* ray_dev_start_xmit */ 871 872 /*===========================================================================*/ 873 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 874 UCHAR msg_type) 875 { 876 ray_dev_t *local = netdev_priv(dev); 877 struct ccs __iomem *pccs; 878 int ccsindex; 879 int offset; 880 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 881 short int addr; /* Address of xmit buffer in card space */ 882 883 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 884 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 885 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 886 len); 887 return XMIT_MSG_BAD; 888 } 889 switch (ccsindex = get_free_tx_ccs(local)) { 890 case ECCSBUSY: 891 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 892 fallthrough; 893 case ECCSFULL: 894 pr_debug("ray_hw_xmit No free tx ccs\n"); 895 fallthrough; 896 case ECARDGONE: 897 netif_stop_queue(dev); 898 return XMIT_NO_CCS; 899 default: 900 break; 901 } 902 addr = TX_BUF_BASE + (ccsindex << 11); 903 904 if (msg_type == DATA_TYPE) { 905 local->stats.tx_bytes += len; 906 local->stats.tx_packets++; 907 } 908 909 ptx = local->sram + addr; 910 911 ray_build_header(local, ptx, msg_type, data); 912 if (translate) { 913 offset = translate_frame(local, ptx, data, len); 914 } else { /* Encapsulate frame */ 915 /* TBD TIB length will move address of ptx->var */ 916 memcpy_toio(&ptx->var, data, len); 917 offset = 0; 918 } 919 920 /* fill in the CCS */ 921 pccs = ccs_base(local) + ccsindex; 922 len += TX_HEADER_LENGTH + offset; 923 writeb(CCS_TX_REQUEST, &pccs->cmd); 924 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 925 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 926 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 927 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 928 /* TBD still need psm_cam? */ 929 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 930 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 931 writeb(0, &pccs->var.tx_request.antenna); 932 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 933 local->net_default_tx_rate); 934 935 /* Interrupt the firmware to process the command */ 936 if (interrupt_ecf(local, ccsindex)) { 937 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 938 /* TBD very inefficient to copy packet to buffer, and then not 939 send it, but the alternative is to queue the messages and that 940 won't be done for a while. Maybe set tbusy until a CCS is free? 941 */ 942 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 943 return XMIT_NO_INTR; 944 } 945 return XMIT_OK; 946 } /* end ray_hw_xmit */ 947 948 /*===========================================================================*/ 949 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 950 unsigned char *data, int len) 951 { 952 __be16 proto = ((struct ethhdr *)data)->h_proto; 953 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */ 954 pr_debug("ray_cs translate_frame DIX II\n"); 955 /* Copy LLC header to card buffer */ 956 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 957 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 958 (UCHAR *) &proto, 2); 959 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 960 /* This is the selective translation table, only 2 entries */ 961 writeb(0xf8, 962 &((struct snaphdr_t __iomem *)ptx->var)->org[2]); 963 } 964 /* Copy body of ethernet packet without ethernet header */ 965 memcpy_toio((void __iomem *)&ptx->var + 966 sizeof(struct snaphdr_t), data + ETH_HLEN, 967 len - ETH_HLEN); 968 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 969 } else { /* already 802 type, and proto is length */ 970 pr_debug("ray_cs translate_frame 802\n"); 971 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 972 pr_debug("ray_cs translate_frame evil IPX\n"); 973 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 974 return 0 - ETH_HLEN; 975 } 976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 977 return 0 - ETH_HLEN; 978 } 979 /* TBD do other frame types */ 980 } /* end translate_frame */ 981 982 /*===========================================================================*/ 983 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 984 UCHAR msg_type, unsigned char *data) 985 { 986 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 987 /*** IEEE 802.11 Address field assignments ************* 988 TODS FROMDS addr_1 addr_2 addr_3 addr_4 989 Adhoc 0 0 dest src (terminal) BSSID N/A 990 AP to Terminal 0 1 dest AP(BSSID) source N/A 991 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 992 AP to AP 1 1 dest AP src AP dest source 993 *******************************************************/ 994 if (local->net_type == ADHOC) { 995 writeb(0, &ptx->mac.frame_ctl_2); 996 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 997 ADDRLEN); 998 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, 999 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 */ 1028 static 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 */ 1039 static 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 */ 1062 static 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 */ 1076 static 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 */ 1105 static 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 */ 1127 static 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 */ 1142 static 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 */ 1169 static 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 */ 1187 static 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 */ 1214 static 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 */ 1231 static 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 */ 1258 static 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 */ 1275 static 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 fallthrough; 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 */ 1304 static 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 */ 1321 static 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 */ 1352 static 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 */ 1364 static 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 */ 1376 static 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 */ 1388 static 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 */ 1398 static 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 1430 static 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 1459 static const iw_handler ray_private_handler[] = { 1460 [0] = ray_set_framing, 1461 [1] = ray_get_framing, 1462 [3] = ray_get_country, 1463 }; 1464 1465 static 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 1475 static 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 /*===========================================================================*/ 1486 static 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 /*===========================================================================*/ 1523 static 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 /*===========================================================================*/ 1543 static 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 */ 1551 static 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 */ 1579 static 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 */ 1611 static 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 /*===========================================================================*/ 1640 static void authenticate_timeout(struct timer_list *t) 1641 { 1642 ray_dev_t *local = from_timer(local, t, timer); 1643 del_timer(&local->timer); 1644 printk(KERN_INFO "ray_cs Authentication with access point failed" 1645 " - timeout\n"); 1646 join_net(&local->timer); 1647 } 1648 1649 /*===========================================================================*/ 1650 static int parse_addr(char *in_str, UCHAR *out) 1651 { 1652 int i, k; 1653 int len; 1654 1655 if (in_str == NULL) 1656 return 0; 1657 len = strnlen(in_str, ADDRLEN * 2 + 1) - 1; 1658 if (len < 1) 1659 return 0; 1660 memset(out, 0, ADDRLEN); 1661 1662 i = 5; 1663 1664 while (len > 0) { 1665 if ((k = hex_to_bin(in_str[len--])) != -1) 1666 out[i] = k; 1667 else 1668 return 0; 1669 1670 if (len == 0) 1671 break; 1672 if ((k = hex_to_bin(in_str[len--])) != -1) 1673 out[i] += k << 4; 1674 else 1675 return 0; 1676 if (!i--) 1677 break; 1678 } 1679 return 1; 1680 } 1681 1682 /*===========================================================================*/ 1683 static struct net_device_stats *ray_get_stats(struct net_device *dev) 1684 { 1685 ray_dev_t *local = netdev_priv(dev); 1686 struct pcmcia_device *link = local->finder; 1687 struct status __iomem *p = local->sram + STATUS_BASE; 1688 if (!(pcmcia_dev_present(link))) { 1689 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1690 return &local->stats; 1691 } 1692 if (readb(&p->mrx_overflow_for_host)) { 1693 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1694 writeb(0, &p->mrx_overflow); 1695 writeb(0, &p->mrx_overflow_for_host); 1696 } 1697 if (readb(&p->mrx_checksum_error_for_host)) { 1698 local->stats.rx_crc_errors += 1699 swab16(readw(&p->mrx_checksum_error)); 1700 writeb(0, &p->mrx_checksum_error); 1701 writeb(0, &p->mrx_checksum_error_for_host); 1702 } 1703 if (readb(&p->rx_hec_error_for_host)) { 1704 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1705 writeb(0, &p->rx_hec_error); 1706 writeb(0, &p->rx_hec_error_for_host); 1707 } 1708 return &local->stats; 1709 } 1710 1711 /*===========================================================================*/ 1712 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1713 int len) 1714 { 1715 ray_dev_t *local = netdev_priv(dev); 1716 struct pcmcia_device *link = local->finder; 1717 int ccsindex; 1718 int i; 1719 struct ccs __iomem *pccs; 1720 1721 if (!(pcmcia_dev_present(link))) { 1722 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1723 return; 1724 } 1725 1726 if ((ccsindex = get_free_ccs(local)) < 0) { 1727 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1728 return; 1729 } 1730 pccs = ccs_base(local) + ccsindex; 1731 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1732 writeb(objid, &pccs->var.update_param.object_id); 1733 writeb(1, &pccs->var.update_param.number_objects); 1734 writeb(0, &pccs->var.update_param.failure_cause); 1735 for (i = 0; i < len; i++) { 1736 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1737 } 1738 /* Interrupt the firmware to process the command */ 1739 if (interrupt_ecf(local, ccsindex)) { 1740 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1741 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1742 } 1743 } 1744 1745 /*===========================================================================*/ 1746 static void ray_update_multi_list(struct net_device *dev, int all) 1747 { 1748 int ccsindex; 1749 struct ccs __iomem *pccs; 1750 ray_dev_t *local = netdev_priv(dev); 1751 struct pcmcia_device *link = local->finder; 1752 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1753 1754 if (!(pcmcia_dev_present(link))) { 1755 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1756 return; 1757 } else 1758 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1759 if ((ccsindex = get_free_ccs(local)) < 0) { 1760 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1761 return; 1762 } 1763 pccs = ccs_base(local) + ccsindex; 1764 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1765 1766 if (all) { 1767 writeb(0xff, &pccs->var); 1768 local->num_multi = 0xff; 1769 } else { 1770 struct netdev_hw_addr *ha; 1771 int i = 0; 1772 1773 /* Copy the kernel's list of MC addresses to card */ 1774 netdev_for_each_mc_addr(ha, dev) { 1775 memcpy_toio(p, ha->addr, ETH_ALEN); 1776 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n", 1777 ha->addr); 1778 p += ETH_ALEN; 1779 i++; 1780 } 1781 if (i > 256 / ADDRLEN) 1782 i = 256 / ADDRLEN; 1783 writeb((UCHAR) i, &pccs->var); 1784 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1785 /* Interrupt the firmware to process the command */ 1786 local->num_multi = i; 1787 } 1788 if (interrupt_ecf(local, ccsindex)) { 1789 dev_dbg(&link->dev, 1790 "ray_cs update_multi failed - ECF not ready for intr\n"); 1791 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1792 } 1793 } /* end ray_update_multi_list */ 1794 1795 /*===========================================================================*/ 1796 static void set_multicast_list(struct net_device *dev) 1797 { 1798 ray_dev_t *local = netdev_priv(dev); 1799 UCHAR promisc; 1800 1801 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1802 1803 if (dev->flags & IFF_PROMISC) { 1804 if (local->sparm.b5.a_promiscuous_mode == 0) { 1805 pr_debug("ray_cs set_multicast_list promisc on\n"); 1806 local->sparm.b5.a_promiscuous_mode = 1; 1807 promisc = 1; 1808 ray_update_parm(dev, OBJID_promiscuous_mode, 1809 &promisc, sizeof(promisc)); 1810 } 1811 } else { 1812 if (local->sparm.b5.a_promiscuous_mode == 1) { 1813 pr_debug("ray_cs set_multicast_list promisc off\n"); 1814 local->sparm.b5.a_promiscuous_mode = 0; 1815 promisc = 0; 1816 ray_update_parm(dev, OBJID_promiscuous_mode, 1817 &promisc, sizeof(promisc)); 1818 } 1819 } 1820 1821 if (dev->flags & IFF_ALLMULTI) 1822 ray_update_multi_list(dev, 1); 1823 else { 1824 if (local->num_multi != netdev_mc_count(dev)) 1825 ray_update_multi_list(dev, 0); 1826 } 1827 } /* end set_multicast_list */ 1828 1829 /*============================================================================= 1830 * All routines below here are run at interrupt time. 1831 =============================================================================*/ 1832 static irqreturn_t ray_interrupt(int irq, void *dev_id) 1833 { 1834 struct net_device *dev = (struct net_device *)dev_id; 1835 struct pcmcia_device *link; 1836 ray_dev_t *local; 1837 struct ccs __iomem *pccs; 1838 struct rcs __iomem *prcs; 1839 UCHAR rcsindex; 1840 UCHAR tmp; 1841 UCHAR cmd; 1842 UCHAR status; 1843 UCHAR memtmp[ESSID_SIZE + 1]; 1844 1845 1846 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1847 return IRQ_NONE; 1848 1849 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1850 1851 local = netdev_priv(dev); 1852 link = local->finder; 1853 if (!pcmcia_dev_present(link)) { 1854 pr_debug( 1855 "ray_cs interrupt from device not present or suspended.\n"); 1856 return IRQ_NONE; 1857 } 1858 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1859 1860 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1861 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1862 clear_interrupt(local); 1863 return IRQ_HANDLED; 1864 } 1865 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1866 pccs = ccs_base(local) + rcsindex; 1867 cmd = readb(&pccs->cmd); 1868 status = readb(&pccs->buffer_status); 1869 switch (cmd) { 1870 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1871 del_timer(&local->timer); 1872 if (status == CCS_COMMAND_COMPLETE) { 1873 dev_dbg(&link->dev, 1874 "ray_cs interrupt download_startup_parameters OK\n"); 1875 } else { 1876 dev_dbg(&link->dev, 1877 "ray_cs interrupt download_startup_parameters fail\n"); 1878 } 1879 break; 1880 case CCS_UPDATE_PARAMS: 1881 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1882 if (status != CCS_COMMAND_COMPLETE) { 1883 tmp = 1884 readb(&pccs->var.update_param. 1885 failure_cause); 1886 dev_dbg(&link->dev, 1887 "ray_cs interrupt update params failed - reason %d\n", 1888 tmp); 1889 } 1890 break; 1891 case CCS_REPORT_PARAMS: 1892 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1893 break; 1894 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1895 dev_dbg(&link->dev, 1896 "ray_cs interrupt CCS Update Multicast List done\n"); 1897 break; 1898 case CCS_UPDATE_POWER_SAVINGS_MODE: 1899 dev_dbg(&link->dev, 1900 "ray_cs interrupt update power save mode done\n"); 1901 break; 1902 case CCS_START_NETWORK: 1903 case CCS_JOIN_NETWORK: 1904 memcpy(memtmp, local->sparm.b4.a_current_ess_id, 1905 ESSID_SIZE); 1906 memtmp[ESSID_SIZE] = '\0'; 1907 1908 if (status == CCS_COMMAND_COMPLETE) { 1909 if (readb 1910 (&pccs->var.start_network.net_initiated) == 1911 1) { 1912 dev_dbg(&link->dev, 1913 "ray_cs interrupt network \"%s\" started\n", 1914 memtmp); 1915 } else { 1916 dev_dbg(&link->dev, 1917 "ray_cs interrupt network \"%s\" joined\n", 1918 memtmp); 1919 } 1920 memcpy_fromio(&local->bss_id, 1921 pccs->var.start_network.bssid, 1922 ADDRLEN); 1923 1924 if (local->fw_ver == 0x55) 1925 local->net_default_tx_rate = 3; 1926 else 1927 local->net_default_tx_rate = 1928 readb(&pccs->var.start_network. 1929 net_default_tx_rate); 1930 local->encryption = 1931 readb(&pccs->var.start_network.encryption); 1932 if (!sniffer && (local->net_type == INFRA) 1933 && !(local->sparm.b4.a_acting_as_ap_status)) { 1934 authenticate(local); 1935 } 1936 local->card_status = CARD_ACQ_COMPLETE; 1937 } else { 1938 local->card_status = CARD_ACQ_FAILED; 1939 1940 del_timer(&local->timer); 1941 local->timer.expires = jiffies + HZ * 5; 1942 if (status == CCS_START_NETWORK) { 1943 dev_dbg(&link->dev, 1944 "ray_cs interrupt network \"%s\" start failed\n", 1945 memtmp); 1946 local->timer.function = start_net; 1947 } else { 1948 dev_dbg(&link->dev, 1949 "ray_cs interrupt network \"%s\" join failed\n", 1950 memtmp); 1951 local->timer.function = join_net; 1952 } 1953 add_timer(&local->timer); 1954 } 1955 break; 1956 case CCS_START_ASSOCIATION: 1957 if (status == CCS_COMMAND_COMPLETE) { 1958 local->card_status = CARD_ASSOC_COMPLETE; 1959 dev_dbg(&link->dev, "ray_cs association successful\n"); 1960 } else { 1961 dev_dbg(&link->dev, "ray_cs association failed,\n"); 1962 local->card_status = CARD_ASSOC_FAILED; 1963 join_net(&local->timer); 1964 } 1965 break; 1966 case CCS_TX_REQUEST: 1967 if (status == CCS_COMMAND_COMPLETE) { 1968 dev_dbg(&link->dev, 1969 "ray_cs interrupt tx request complete\n"); 1970 } else { 1971 dev_dbg(&link->dev, 1972 "ray_cs interrupt tx request failed\n"); 1973 } 1974 if (!sniffer) 1975 netif_start_queue(dev); 1976 netif_wake_queue(dev); 1977 break; 1978 case CCS_TEST_MEMORY: 1979 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 1980 break; 1981 case CCS_SHUTDOWN: 1982 dev_dbg(&link->dev, 1983 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 1984 break; 1985 case CCS_DUMP_MEMORY: 1986 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 1987 break; 1988 case CCS_START_TIMER: 1989 dev_dbg(&link->dev, 1990 "ray_cs interrupt DING - raylink timer expired\n"); 1991 break; 1992 default: 1993 dev_dbg(&link->dev, 1994 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 1995 rcsindex, cmd); 1996 } 1997 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 1998 } else { /* It's an RCS */ 1999 2000 prcs = rcs_base(local) + rcsindex; 2001 2002 switch (readb(&prcs->interrupt_id)) { 2003 case PROCESS_RX_PACKET: 2004 ray_rx(dev, local, prcs); 2005 break; 2006 case REJOIN_NET_COMPLETE: 2007 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2008 local->card_status = CARD_ACQ_COMPLETE; 2009 /* do we need to clear tx buffers CCS's? */ 2010 if (local->sparm.b4.a_network_type == ADHOC) { 2011 if (!sniffer) 2012 netif_start_queue(dev); 2013 } else { 2014 memcpy_fromio(&local->bss_id, 2015 prcs->var.rejoin_net_complete. 2016 bssid, ADDRLEN); 2017 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n", 2018 local->bss_id); 2019 if (!sniffer) 2020 authenticate(local); 2021 } 2022 break; 2023 case ROAMING_INITIATED: 2024 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2025 netif_stop_queue(dev); 2026 local->card_status = CARD_DOING_ACQ; 2027 break; 2028 case JAPAN_CALL_SIGN_RXD: 2029 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2030 break; 2031 default: 2032 dev_dbg(&link->dev, 2033 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2034 rcsindex, 2035 (unsigned int)readb(&prcs->interrupt_id)); 2036 break; 2037 } 2038 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2039 } 2040 clear_interrupt(local); 2041 return IRQ_HANDLED; 2042 } /* ray_interrupt */ 2043 2044 /*===========================================================================*/ 2045 static void ray_rx(struct net_device *dev, ray_dev_t *local, 2046 struct rcs __iomem *prcs) 2047 { 2048 int rx_len; 2049 unsigned int pkt_addr; 2050 void __iomem *pmsg; 2051 pr_debug("ray_rx process rx packet\n"); 2052 2053 /* Calculate address of packet within Rx buffer */ 2054 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2055 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2056 /* Length of first packet fragment */ 2057 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2058 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2059 2060 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2061 pmsg = local->rmem + pkt_addr; 2062 switch (readb(pmsg)) { 2063 case DATA_TYPE: 2064 pr_debug("ray_rx data type\n"); 2065 rx_data(dev, prcs, pkt_addr, rx_len); 2066 break; 2067 case AUTHENTIC_TYPE: 2068 pr_debug("ray_rx authentic type\n"); 2069 if (sniffer) 2070 rx_data(dev, prcs, pkt_addr, rx_len); 2071 else 2072 rx_authenticate(local, prcs, pkt_addr, rx_len); 2073 break; 2074 case DEAUTHENTIC_TYPE: 2075 pr_debug("ray_rx deauth type\n"); 2076 if (sniffer) 2077 rx_data(dev, prcs, pkt_addr, rx_len); 2078 else 2079 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2080 break; 2081 case NULL_MSG_TYPE: 2082 pr_debug("ray_cs rx NULL msg\n"); 2083 break; 2084 case BEACON_TYPE: 2085 pr_debug("ray_rx beacon type\n"); 2086 if (sniffer) 2087 rx_data(dev, prcs, pkt_addr, rx_len); 2088 2089 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2090 rx_len < sizeof(struct beacon_rx) ? 2091 rx_len : sizeof(struct beacon_rx)); 2092 2093 local->beacon_rxed = 1; 2094 /* Get the statistics so the card counters never overflow */ 2095 ray_get_stats(dev); 2096 break; 2097 default: 2098 pr_debug("ray_cs unknown pkt type %2x\n", 2099 (unsigned int)readb(pmsg)); 2100 break; 2101 } 2102 2103 } /* end ray_rx */ 2104 2105 /*===========================================================================*/ 2106 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2107 unsigned int pkt_addr, int rx_len) 2108 { 2109 struct sk_buff *skb = NULL; 2110 struct rcs __iomem *prcslink = prcs; 2111 ray_dev_t *local = netdev_priv(dev); 2112 UCHAR *rx_ptr; 2113 int total_len; 2114 int tmp; 2115 #ifdef WIRELESS_SPY 2116 int siglev = local->last_rsl; 2117 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2118 #endif 2119 2120 if (!sniffer) { 2121 if (translate) { 2122 /* TBD length needs fixing for translated header */ 2123 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2124 rx_len > 2125 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2126 FCS_LEN)) { 2127 pr_debug( 2128 "ray_cs invalid packet length %d received\n", 2129 rx_len); 2130 return; 2131 } 2132 } else { /* encapsulated ethernet */ 2133 2134 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2135 rx_len > 2136 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2137 FCS_LEN)) { 2138 pr_debug( 2139 "ray_cs invalid packet length %d received\n", 2140 rx_len); 2141 return; 2142 } 2143 } 2144 } 2145 pr_debug("ray_cs rx_data packet\n"); 2146 /* If fragmented packet, verify sizes of fragments add up */ 2147 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2148 pr_debug("ray_cs rx'ed fragment\n"); 2149 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2150 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2151 total_len = tmp; 2152 prcslink = prcs; 2153 do { 2154 tmp -= 2155 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2156 << 8) 2157 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2158 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2159 == 0xFF || tmp < 0) 2160 break; 2161 prcslink = rcs_base(local) 2162 + readb(&prcslink->link_field); 2163 } while (1); 2164 2165 if (tmp < 0) { 2166 pr_debug( 2167 "ray_cs rx_data fragment lengths don't add up\n"); 2168 local->stats.rx_dropped++; 2169 release_frag_chain(local, prcs); 2170 return; 2171 } 2172 } else { /* Single unfragmented packet */ 2173 total_len = rx_len; 2174 } 2175 2176 skb = dev_alloc_skb(total_len + 5); 2177 if (skb == NULL) { 2178 pr_debug("ray_cs rx_data could not allocate skb\n"); 2179 local->stats.rx_dropped++; 2180 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2181 release_frag_chain(local, prcs); 2182 return; 2183 } 2184 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2185 2186 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2187 rx_len); 2188 2189 /************************/ 2190 /* Reserve enough room for the whole damn packet. */ 2191 rx_ptr = skb_put(skb, total_len); 2192 /* Copy the whole packet to sk_buff */ 2193 rx_ptr += 2194 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2195 /* Get source address */ 2196 #ifdef WIRELESS_SPY 2197 skb_copy_from_linear_data_offset(skb, 2198 offsetof(struct mac_header, addr_2), 2199 linksrcaddr, ETH_ALEN); 2200 #endif 2201 /* Now, deal with encapsulation/translation/sniffer */ 2202 if (!sniffer) { 2203 if (!translate) { 2204 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2205 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2206 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2207 } else { 2208 /* Do translation */ 2209 untranslate(local, skb, total_len); 2210 } 2211 } else { /* sniffer mode, so just pass whole packet */ 2212 } 2213 2214 /************************/ 2215 /* Now pick up the rest of the fragments if any */ 2216 tmp = 17; 2217 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2218 prcslink = prcs; 2219 pr_debug("ray_cs rx_data in fragment loop\n"); 2220 do { 2221 prcslink = rcs_base(local) 2222 + 2223 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2224 rx_len = 2225 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2226 << 8) 2227 + 2228 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2229 & RX_BUFF_END; 2230 pkt_addr = 2231 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2232 8) 2233 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2234 & RX_BUFF_END; 2235 2236 rx_ptr += 2237 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2238 2239 } while (tmp-- && 2240 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2241 0xFF); 2242 release_frag_chain(local, prcs); 2243 } 2244 2245 skb->protocol = eth_type_trans(skb, dev); 2246 netif_rx(skb); 2247 local->stats.rx_packets++; 2248 local->stats.rx_bytes += total_len; 2249 2250 /* Gather signal strength per address */ 2251 #ifdef WIRELESS_SPY 2252 /* For the Access Point or the node having started the ad-hoc net 2253 * note : ad-hoc work only in some specific configurations, but we 2254 * kludge in ray_get_wireless_stats... */ 2255 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2256 /* Update statistics */ 2257 /*local->wstats.qual.qual = none ? */ 2258 local->wstats.qual.level = siglev; 2259 /*local->wstats.qual.noise = none ? */ 2260 local->wstats.qual.updated = 0x2; 2261 } 2262 /* Now, update the spy stuff */ 2263 { 2264 struct iw_quality wstats; 2265 wstats.level = siglev; 2266 /* wstats.noise = none ? */ 2267 /* wstats.qual = none ? */ 2268 wstats.updated = 0x2; 2269 /* Update spy records */ 2270 wireless_spy_update(dev, linksrcaddr, &wstats); 2271 } 2272 #endif /* WIRELESS_SPY */ 2273 } /* end rx_data */ 2274 2275 /*===========================================================================*/ 2276 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2277 { 2278 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2279 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2280 __be16 type = *(__be16 *) psnap->ethertype; 2281 int delta; 2282 struct ethhdr *peth; 2283 UCHAR srcaddr[ADDRLEN]; 2284 UCHAR destaddr[ADDRLEN]; 2285 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2286 static const UCHAR org_1042[3] = { 0, 0, 0 }; 2287 2288 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2289 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2290 2291 #if 0 2292 if { 2293 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", 2294 DUMP_PREFIX_NONE, 16, 1, 2295 skb->data, 64, true); 2296 printk(KERN_DEBUG 2297 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", 2298 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, 2299 psnap->org[0], psnap->org[1], psnap->org[2]); 2300 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data); 2301 } 2302 #endif 2303 2304 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2305 /* not a snap type so leave it alone */ 2306 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2307 psnap->dsap, psnap->ssap, psnap->ctrl); 2308 2309 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2310 peth = (struct ethhdr *)(skb->data + delta); 2311 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2312 } else { /* Its a SNAP */ 2313 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2314 /* EtherII and nuke the LLC */ 2315 pr_debug("ray_cs untranslate Bridge encap\n"); 2316 delta = RX_MAC_HEADER_LENGTH 2317 + sizeof(struct snaphdr_t) - ETH_HLEN; 2318 peth = (struct ethhdr *)(skb->data + delta); 2319 peth->h_proto = type; 2320 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2321 switch (ntohs(type)) { 2322 case ETH_P_IPX: 2323 case ETH_P_AARP: 2324 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2325 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2326 peth = (struct ethhdr *)(skb->data + delta); 2327 peth->h_proto = 2328 htons(len - RX_MAC_HEADER_LENGTH); 2329 break; 2330 default: 2331 pr_debug("ray_cs untranslate RFC default\n"); 2332 delta = RX_MAC_HEADER_LENGTH + 2333 sizeof(struct snaphdr_t) - ETH_HLEN; 2334 peth = (struct ethhdr *)(skb->data + delta); 2335 peth->h_proto = type; 2336 break; 2337 } 2338 } else { 2339 printk("ray_cs untranslate very confused by packet\n"); 2340 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2341 peth = (struct ethhdr *)(skb->data + delta); 2342 peth->h_proto = type; 2343 } 2344 } 2345 /* TBD reserve skb_reserve(skb, delta); */ 2346 skb_pull(skb, delta); 2347 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2348 skb->data); 2349 memcpy(peth->h_dest, destaddr, ADDRLEN); 2350 memcpy(peth->h_source, srcaddr, ADDRLEN); 2351 #if 0 2352 { 2353 int i; 2354 printk(KERN_DEBUG "skb->data after untranslate:"); 2355 for (i = 0; i < 64; i++) 2356 printk("%02x ", skb->data[i]); 2357 printk("\n"); 2358 } 2359 #endif 2360 } /* end untranslate */ 2361 2362 /*===========================================================================*/ 2363 /* Copy data from circular receive buffer to PC memory. 2364 * dest = destination address in PC memory 2365 * pkt_addr = source address in receive buffer 2366 * len = length of packet to copy 2367 */ 2368 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2369 int length) 2370 { 2371 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2372 if (wrap_bytes <= 0) { 2373 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2374 } else { /* Packet wrapped in circular buffer */ 2375 2376 memcpy_fromio(dest, local->rmem + pkt_addr, 2377 length - wrap_bytes); 2378 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2379 wrap_bytes); 2380 } 2381 return length; 2382 } 2383 2384 /*===========================================================================*/ 2385 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2386 { 2387 struct rcs __iomem *prcslink = prcs; 2388 int tmp = 17; 2389 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2390 2391 while (tmp--) { 2392 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2393 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2394 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2395 rcsindex); 2396 break; 2397 } 2398 prcslink = rcs_base(local) + rcsindex; 2399 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2400 } 2401 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2402 } 2403 2404 /*===========================================================================*/ 2405 static void authenticate(ray_dev_t *local) 2406 { 2407 struct pcmcia_device *link = local->finder; 2408 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2409 if (!(pcmcia_dev_present(link))) { 2410 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2411 return; 2412 } 2413 2414 del_timer(&local->timer); 2415 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2416 local->timer.function = join_net; 2417 } else { 2418 local->timer.function = authenticate_timeout; 2419 } 2420 local->timer.expires = jiffies + HZ * 2; 2421 add_timer(&local->timer); 2422 local->authentication_state = AWAITING_RESPONSE; 2423 } /* end authenticate */ 2424 2425 /*===========================================================================*/ 2426 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2427 unsigned int pkt_addr, int rx_len) 2428 { 2429 UCHAR buff[256]; 2430 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2431 2432 del_timer(&local->timer); 2433 2434 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2435 /* if we are trying to get authenticated */ 2436 if (local->sparm.b4.a_network_type == ADHOC) { 2437 pr_debug("ray_cs rx_auth var= %6ph\n", msg->var); 2438 if (msg->var[2] == 1) { 2439 pr_debug("ray_cs Sending authentication response.\n"); 2440 if (!build_auth_frame 2441 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2442 local->authentication_state = NEED_TO_AUTH; 2443 memcpy(local->auth_id, msg->mac.addr_2, 2444 ADDRLEN); 2445 } 2446 } 2447 } else { /* Infrastructure network */ 2448 2449 if (local->authentication_state == AWAITING_RESPONSE) { 2450 /* Verify authentication sequence #2 and success */ 2451 if (msg->var[2] == 2) { 2452 if ((msg->var[3] | msg->var[4]) == 0) { 2453 pr_debug("Authentication successful\n"); 2454 local->card_status = CARD_AUTH_COMPLETE; 2455 associate(local); 2456 local->authentication_state = 2457 AUTHENTICATED; 2458 } else { 2459 pr_debug("Authentication refused\n"); 2460 local->card_status = CARD_AUTH_REFUSED; 2461 join_net(&local->timer); 2462 local->authentication_state = 2463 UNAUTHENTICATED; 2464 } 2465 } 2466 } 2467 } 2468 2469 } /* end rx_authenticate */ 2470 2471 /*===========================================================================*/ 2472 static void associate(ray_dev_t *local) 2473 { 2474 struct ccs __iomem *pccs; 2475 struct pcmcia_device *link = local->finder; 2476 struct net_device *dev = link->priv; 2477 int ccsindex; 2478 if (!(pcmcia_dev_present(link))) { 2479 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2480 return; 2481 } 2482 /* If no tx buffers available, return */ 2483 if ((ccsindex = get_free_ccs(local)) < 0) { 2484 /* TBD should never be here but... what if we are? */ 2485 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2486 return; 2487 } 2488 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2489 pccs = ccs_base(local) + ccsindex; 2490 /* fill in the CCS */ 2491 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2492 /* Interrupt the firmware to process the command */ 2493 if (interrupt_ecf(local, ccsindex)) { 2494 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2495 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2496 2497 del_timer(&local->timer); 2498 local->timer.expires = jiffies + HZ * 2; 2499 local->timer.function = join_net; 2500 add_timer(&local->timer); 2501 local->card_status = CARD_ASSOC_FAILED; 2502 return; 2503 } 2504 if (!sniffer) 2505 netif_start_queue(dev); 2506 2507 } /* end associate */ 2508 2509 /*===========================================================================*/ 2510 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2511 unsigned int pkt_addr, int rx_len) 2512 { 2513 /* UCHAR buff[256]; 2514 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2515 */ 2516 pr_debug("Deauthentication frame received\n"); 2517 local->authentication_state = UNAUTHENTICATED; 2518 /* Need to reauthenticate or rejoin depending on reason code */ 2519 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2520 */ 2521 } 2522 2523 /*===========================================================================*/ 2524 static void clear_interrupt(ray_dev_t *local) 2525 { 2526 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2527 } 2528 2529 /*===========================================================================*/ 2530 #ifdef CONFIG_PROC_FS 2531 #define MAXDATA (PAGE_SIZE - 80) 2532 2533 static const char *card_status[] = { 2534 "Card inserted - uninitialized", /* 0 */ 2535 "Card not downloaded", /* 1 */ 2536 "Waiting for download parameters", /* 2 */ 2537 "Card doing acquisition", /* 3 */ 2538 "Acquisition complete", /* 4 */ 2539 "Authentication complete", /* 5 */ 2540 "Association complete", /* 6 */ 2541 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2542 "Card init error", /* 11 */ 2543 "Download parameters error", /* 12 */ 2544 "???", /* 13 */ 2545 "Acquisition failed", /* 14 */ 2546 "Authentication refused", /* 15 */ 2547 "Association failed" /* 16 */ 2548 }; 2549 2550 static const char *nettype[] = { "Adhoc", "Infra " }; 2551 static const char *framing[] = { "Encapsulation", "Translation" } 2552 2553 ; 2554 /*===========================================================================*/ 2555 static int ray_cs_proc_show(struct seq_file *m, void *v) 2556 { 2557 /* Print current values which are not available via other means 2558 * eg ifconfig 2559 */ 2560 int i; 2561 struct pcmcia_device *link; 2562 struct net_device *dev; 2563 ray_dev_t *local; 2564 UCHAR *p; 2565 struct freq_hop_element *pfh; 2566 UCHAR c[33]; 2567 2568 link = this_device; 2569 if (!link) 2570 return 0; 2571 dev = (struct net_device *)link->priv; 2572 if (!dev) 2573 return 0; 2574 local = netdev_priv(dev); 2575 if (!local) 2576 return 0; 2577 2578 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2579 seq_printf(m, "%s\n", rcsid); 2580 /* build 4 does not report version, and field is 0x55 after memtest */ 2581 seq_puts(m, "Firmware version = "); 2582 if (local->fw_ver == 0x55) 2583 seq_puts(m, "4 - Use dump_cis for more details\n"); 2584 else 2585 seq_printf(m, "%2d.%02d.%02d\n", 2586 local->fw_ver, local->fw_bld, local->fw_var); 2587 2588 for (i = 0; i < 32; i++) 2589 c[i] = local->sparm.b5.a_current_ess_id[i]; 2590 c[32] = 0; 2591 seq_printf(m, "%s network ESSID = \"%s\"\n", 2592 nettype[local->sparm.b5.a_network_type], c); 2593 2594 p = local->bss_id; 2595 seq_printf(m, "BSSID = %pM\n", p); 2596 2597 seq_printf(m, "Country code = %d\n", 2598 local->sparm.b5.a_curr_country_code); 2599 2600 i = local->card_status; 2601 if (i < 0) 2602 i = 10; 2603 if (i > 16) 2604 i = 10; 2605 seq_printf(m, "Card status = %s\n", card_status[i]); 2606 2607 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2608 2609 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2610 2611 if (local->beacon_rxed) { 2612 /* Pull some fields out of last beacon received */ 2613 seq_printf(m, "Beacon Interval = %d Kus\n", 2614 local->last_bcn.beacon_intvl[0] 2615 + 256 * local->last_bcn.beacon_intvl[1]); 2616 2617 p = local->last_bcn.elements; 2618 if (p[0] == C_ESSID_ELEMENT_ID) 2619 p += p[1] + 2; 2620 else { 2621 seq_printf(m, 2622 "Parse beacon failed at essid element id = %d\n", 2623 p[0]); 2624 return 0; 2625 } 2626 2627 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2628 seq_puts(m, "Supported rate codes = "); 2629 for (i = 2; i < p[1] + 2; i++) 2630 seq_printf(m, "0x%02x ", p[i]); 2631 seq_putc(m, '\n'); 2632 p += p[1] + 2; 2633 } else { 2634 seq_puts(m, "Parse beacon failed at rates element\n"); 2635 return 0; 2636 } 2637 2638 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2639 pfh = (struct freq_hop_element *)p; 2640 seq_printf(m, "Hop dwell = %d Kus\n", 2641 pfh->dwell_time[0] + 2642 256 * pfh->dwell_time[1]); 2643 seq_printf(m, "Hop set = %d\n", 2644 pfh->hop_set); 2645 seq_printf(m, "Hop pattern = %d\n", 2646 pfh->hop_pattern); 2647 seq_printf(m, "Hop index = %d\n", 2648 pfh->hop_index); 2649 p += p[1] + 2; 2650 } else { 2651 seq_puts(m, 2652 "Parse beacon failed at FH param element\n"); 2653 return 0; 2654 } 2655 } else { 2656 seq_puts(m, "No beacons received\n"); 2657 } 2658 return 0; 2659 } 2660 #endif 2661 /*===========================================================================*/ 2662 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2663 { 2664 int addr; 2665 struct ccs __iomem *pccs; 2666 struct tx_msg __iomem *ptx; 2667 int ccsindex; 2668 2669 /* If no tx buffers available, return */ 2670 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2671 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2672 return -1; 2673 } 2674 2675 pccs = ccs_base(local) + ccsindex; 2676 2677 /* Address in card space */ 2678 addr = TX_BUF_BASE + (ccsindex << 11); 2679 /* fill in the CCS */ 2680 writeb(CCS_TX_REQUEST, &pccs->cmd); 2681 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2682 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2683 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2684 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2685 pccs->var.tx_request.tx_data_length + 1); 2686 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2687 2688 ptx = local->sram + addr; 2689 /* fill in the mac header */ 2690 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2691 writeb(0, &ptx->mac.frame_ctl_2); 2692 2693 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2694 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2695 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2696 2697 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2698 memset_io(ptx->var, 0, 6); 2699 writeb(auth_type & 0xff, ptx->var + 2); 2700 2701 /* Interrupt the firmware to process the command */ 2702 if (interrupt_ecf(local, ccsindex)) { 2703 pr_debug( 2704 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2705 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2706 return -1; 2707 } 2708 return 0; 2709 } /* End build_auth_frame */ 2710 2711 /*===========================================================================*/ 2712 #ifdef CONFIG_PROC_FS 2713 static ssize_t ray_cs_essid_proc_write(struct file *file, 2714 const char __user *buffer, size_t count, loff_t *pos) 2715 { 2716 static char proc_essid[33]; 2717 unsigned int len = count; 2718 2719 if (len > 32) 2720 len = 32; 2721 memset(proc_essid, 0, 33); 2722 if (copy_from_user(proc_essid, buffer, len)) 2723 return -EFAULT; 2724 essid = proc_essid; 2725 return count; 2726 } 2727 2728 static const struct proc_ops ray_cs_essid_proc_ops = { 2729 .proc_write = ray_cs_essid_proc_write, 2730 .proc_lseek = noop_llseek, 2731 }; 2732 2733 static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2734 size_t count, loff_t *pos) 2735 { 2736 static char proc_number[10]; 2737 char *p; 2738 int nr, len; 2739 2740 if (!count) 2741 return 0; 2742 2743 if (count > 9) 2744 return -EINVAL; 2745 if (copy_from_user(proc_number, buffer, count)) 2746 return -EFAULT; 2747 p = proc_number; 2748 nr = 0; 2749 len = count; 2750 do { 2751 unsigned int c = *p - '0'; 2752 if (c > 9) 2753 return -EINVAL; 2754 nr = nr * 10 + c; 2755 p++; 2756 } while (--len); 2757 *(int *)pde_data(file_inode(file)) = nr; 2758 return count; 2759 } 2760 2761 static const struct proc_ops int_proc_ops = { 2762 .proc_write = int_proc_write, 2763 .proc_lseek = noop_llseek, 2764 }; 2765 #endif 2766 2767 static const struct pcmcia_device_id ray_ids[] = { 2768 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2769 PCMCIA_DEVICE_NULL, 2770 }; 2771 2772 MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2773 2774 static struct pcmcia_driver ray_driver = { 2775 .owner = THIS_MODULE, 2776 .name = "ray_cs", 2777 .probe = ray_probe, 2778 .remove = ray_detach, 2779 .id_table = ray_ids, 2780 .suspend = ray_suspend, 2781 .resume = ray_resume, 2782 }; 2783 2784 static int __init init_ray_cs(void) 2785 { 2786 int rc; 2787 2788 pr_debug("%s\n", rcsid); 2789 rc = pcmcia_register_driver(&ray_driver); 2790 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2791 rc); 2792 if (rc) 2793 return rc; 2794 2795 #ifdef CONFIG_PROC_FS 2796 proc_mkdir("driver/ray_cs", NULL); 2797 2798 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show); 2799 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops); 2800 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops, 2801 &net_type); 2802 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops, 2803 &translate); 2804 #endif 2805 translate = !!translate; 2806 return 0; 2807 } /* init_ray_cs */ 2808 2809 /*===========================================================================*/ 2810 2811 static void __exit exit_ray_cs(void) 2812 { 2813 pr_debug("ray_cs: cleanup_module\n"); 2814 2815 #ifdef CONFIG_PROC_FS 2816 remove_proc_subtree("driver/ray_cs", NULL); 2817 #endif 2818 2819 pcmcia_unregister_driver(&ray_driver); 2820 } /* exit_ray_cs */ 2821 2822 module_init(init_ray_cs); 2823 module_exit(exit_ray_cs); 2824 2825 /*===========================================================================*/ 2826