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; 273 274 dev_dbg(&p_dev->dev, "ray_attach()\n"); 275 276 /* Allocate space for private device-specific data */ 277 dev = alloc_etherdev(sizeof(ray_dev_t)); 278 if (!dev) 279 goto fail_alloc_dev; 280 281 local = netdev_priv(dev); 282 local->finder = p_dev; 283 284 /* The io structure describes IO port mapping. None used here */ 285 p_dev->resource[0]->end = 0; 286 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 287 288 /* General socket configuration */ 289 p_dev->config_flags |= CONF_ENABLE_IRQ; 290 p_dev->config_index = 1; 291 292 p_dev->priv = dev; 293 294 local->finder = p_dev; 295 local->card_status = CARD_INSERTED; 296 local->authentication_state = UNAUTHENTICATED; 297 local->num_multi = 0; 298 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 299 p_dev, dev, local, &ray_interrupt); 300 301 /* Raylink entries in the device structure */ 302 dev->netdev_ops = &ray_netdev_ops; 303 dev->wireless_handlers = &ray_handler_def; 304 #ifdef WIRELESS_SPY 305 local->wireless_data.spy_data = &local->spy_data; 306 dev->wireless_data = &local->wireless_data; 307 #endif /* WIRELESS_SPY */ 308 309 310 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 311 netif_stop_queue(dev); 312 313 timer_setup(&local->timer, NULL, 0); 314 315 this_device = p_dev; 316 return ray_config(p_dev); 317 318 fail_alloc_dev: 319 return -ENOMEM; 320 } /* ray_attach */ 321 322 static void ray_detach(struct pcmcia_device *link) 323 { 324 struct net_device *dev; 325 ray_dev_t *local; 326 327 dev_dbg(&link->dev, "ray_detach\n"); 328 329 this_device = NULL; 330 dev = link->priv; 331 332 ray_release(link); 333 334 local = netdev_priv(dev); 335 del_timer_sync(&local->timer); 336 337 if (link->priv) { 338 unregister_netdev(dev); 339 free_netdev(dev); 340 } 341 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 342 } /* ray_detach */ 343 344 #define MAX_TUPLE_SIZE 128 345 static int ray_config(struct pcmcia_device *link) 346 { 347 int ret = 0; 348 int i; 349 struct net_device *dev = (struct net_device *)link->priv; 350 ray_dev_t *local = netdev_priv(dev); 351 352 dev_dbg(&link->dev, "ray_config\n"); 353 354 /* Determine card type and firmware version */ 355 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 356 link->prod_id[0] ? link->prod_id[0] : " ", 357 link->prod_id[1] ? link->prod_id[1] : " ", 358 link->prod_id[2] ? link->prod_id[2] : " ", 359 link->prod_id[3] ? link->prod_id[3] : " "); 360 361 /* Now allocate an interrupt line. Note that this does not 362 actually assign a handler to the interrupt. 363 */ 364 ret = pcmcia_request_irq(link, ray_interrupt); 365 if (ret) 366 goto failed; 367 dev->irq = link->irq; 368 369 ret = pcmcia_enable_device(link); 370 if (ret) 371 goto failed; 372 373 /*** Set up 32k window for shared memory (transmit and control) ************/ 374 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 375 link->resource[2]->start = 0; 376 link->resource[2]->end = 0x8000; 377 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); 378 if (ret) 379 goto failed; 380 ret = pcmcia_map_mem_page(link, link->resource[2], 0); 381 if (ret) 382 goto failed; 383 local->sram = ioremap(link->resource[2]->start, 384 resource_size(link->resource[2])); 385 if (!local->sram) 386 goto failed; 387 388 /*** Set up 16k window for shared memory (receive buffer) ***************/ 389 link->resource[3]->flags |= 390 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 391 link->resource[3]->start = 0; 392 link->resource[3]->end = 0x4000; 393 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); 394 if (ret) 395 goto failed; 396 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); 397 if (ret) 398 goto failed; 399 local->rmem = ioremap(link->resource[3]->start, 400 resource_size(link->resource[3])); 401 if (!local->rmem) 402 goto failed; 403 404 /*** Set up window for attribute memory ***********************************/ 405 link->resource[4]->flags |= 406 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 407 link->resource[4]->start = 0; 408 link->resource[4]->end = 0x1000; 409 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); 410 if (ret) 411 goto failed; 412 ret = pcmcia_map_mem_page(link, link->resource[4], 0); 413 if (ret) 414 goto failed; 415 local->amem = ioremap(link->resource[4]->start, 416 resource_size(link->resource[4])); 417 if (!local->amem) 418 goto failed; 419 420 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 421 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 422 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 423 if (ray_init(dev) < 0) { 424 ray_release(link); 425 return -ENODEV; 426 } 427 428 SET_NETDEV_DEV(dev, &link->dev); 429 i = register_netdev(dev); 430 if (i != 0) { 431 printk("ray_config register_netdev() failed\n"); 432 ray_release(link); 433 return i; 434 } 435 436 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 437 dev->name, dev->irq, dev->dev_addr); 438 439 return 0; 440 441 failed: 442 ray_release(link); 443 return -ENODEV; 444 } /* ray_config */ 445 446 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 447 { 448 return dev->sram + CCS_BASE; 449 } 450 451 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 452 { 453 /* 454 * This looks nonsensical, since there is a separate 455 * RCS_BASE. But the difference between a "struct rcs" 456 * and a "struct ccs" ends up being in the _index_ off 457 * the base, so the base pointer is the same for both 458 * ccs/rcs. 459 */ 460 return dev->sram + CCS_BASE; 461 } 462 463 /*===========================================================================*/ 464 static int ray_init(struct net_device *dev) 465 { 466 int i; 467 struct ccs __iomem *pccs; 468 ray_dev_t *local = netdev_priv(dev); 469 struct pcmcia_device *link = local->finder; 470 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); 471 if (!(pcmcia_dev_present(link))) { 472 dev_dbg(&link->dev, "ray_init - device not present\n"); 473 return -1; 474 } 475 476 local->net_type = net_type; 477 local->sta_type = TYPE_STA; 478 479 /* Copy the startup results to local memory */ 480 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE, 481 sizeof(struct startup_res_6)); 482 483 /* Check Power up test status and get mac address from card */ 484 if (local->startup_res.startup_word != 0x80) { 485 printk(KERN_INFO "ray_init ERROR card status = %2x\n", 486 local->startup_res.startup_word); 487 local->card_status = CARD_INIT_ERROR; 488 return -1; 489 } 490 491 local->fw_ver = local->startup_res.firmware_version[0]; 492 local->fw_bld = local->startup_res.firmware_version[1]; 493 local->fw_var = local->startup_res.firmware_version[2]; 494 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver, 495 local->fw_bld); 496 497 local->tib_length = 0x20; 498 if ((local->fw_ver == 5) && (local->fw_bld >= 30)) 499 local->tib_length = local->startup_res.tib_length; 500 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length); 501 /* Initialize CCS's to buffer free state */ 502 pccs = ccs_base(local); 503 for (i = 0; i < NUMBER_OF_CCS; i++) { 504 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 505 } 506 init_startup_params(local); 507 508 /* copy mac address to startup parameters */ 509 if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) { 510 memcpy(&local->sparm.b4.a_mac_addr, 511 &local->startup_res.station_addr, ADDRLEN); 512 } 513 514 clear_interrupt(local); /* Clear any interrupt from the card */ 515 local->card_status = CARD_AWAITING_PARAM; 516 dev_dbg(&link->dev, "ray_init ending\n"); 517 return 0; 518 } /* ray_init */ 519 520 /*===========================================================================*/ 521 /* Download startup parameters to the card and command it to read them */ 522 static int dl_startup_params(struct net_device *dev) 523 { 524 int ccsindex; 525 ray_dev_t *local = netdev_priv(dev); 526 struct ccs __iomem *pccs; 527 struct pcmcia_device *link = local->finder; 528 529 dev_dbg(&link->dev, "dl_startup_params entered\n"); 530 if (!(pcmcia_dev_present(link))) { 531 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 532 return -1; 533 } 534 535 /* Copy parameters to host to ECF area */ 536 if (local->fw_ver == 0x55) 537 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 538 sizeof(struct b4_startup_params)); 539 else 540 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 541 sizeof(struct b5_startup_params)); 542 543 /* Fill in the CCS fields for the ECF */ 544 if ((ccsindex = get_free_ccs(local)) < 0) 545 return -1; 546 local->dl_param_ccs = ccsindex; 547 pccs = ccs_base(local) + ccsindex; 548 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 549 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 550 local->dl_param_ccs); 551 /* Interrupt the firmware to process the command */ 552 if (interrupt_ecf(local, ccsindex)) { 553 printk(KERN_INFO "ray dl_startup_params failed - " 554 "ECF not ready for intr\n"); 555 local->card_status = CARD_DL_PARAM_ERROR; 556 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 557 return -2; 558 } 559 local->card_status = CARD_DL_PARAM; 560 /* Start kernel timer to wait for dl startup to complete. */ 561 local->timer.expires = jiffies + HZ / 2; 562 local->timer.function = verify_dl_startup; 563 add_timer(&local->timer); 564 dev_dbg(&link->dev, 565 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 566 return 0; 567 } /* dl_startup_params */ 568 569 /*===========================================================================*/ 570 static void init_startup_params(ray_dev_t *local) 571 { 572 int i; 573 574 if (country > JAPAN_TEST) 575 country = USA; 576 else if (country < USA) 577 country = USA; 578 /* structure for hop time and beacon period is defined here using 579 * New 802.11D6.1 format. Card firmware is still using old format 580 * until version 6. 581 * Before After 582 * a_hop_time ms byte a_hop_time ms byte 583 * a_hop_time 2s byte a_hop_time ls byte 584 * a_hop_time ls byte a_beacon_period ms byte 585 * a_beacon_period a_beacon_period ls byte 586 * 587 * a_hop_time = uS a_hop_time = KuS 588 * a_beacon_period = hops a_beacon_period = KuS 589 *//* 64ms = 010000 */ 590 if (local->fw_ver == 0x55) { 591 memcpy(&local->sparm.b4, b4_default_startup_parms, 592 sizeof(struct b4_startup_params)); 593 /* Translate sane kus input values to old build 4/5 format */ 594 /* i = hop time in uS truncated to 3 bytes */ 595 i = (hop_dwell * 1024) & 0xffffff; 596 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 597 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 598 local->sparm.b4.a_beacon_period[0] = 0; 599 local->sparm.b4.a_beacon_period[1] = 600 ((beacon_period / hop_dwell) - 1) & 0xff; 601 local->sparm.b4.a_curr_country_code = country; 602 local->sparm.b4.a_hop_pattern_length = 603 hop_pattern_length[(int)country] - 1; 604 if (bc) { 605 local->sparm.b4.a_ack_timeout = 0x50; 606 local->sparm.b4.a_sifs = 0x3f; 607 } 608 } else { /* Version 5 uses real kus values */ 609 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 610 sizeof(struct b5_startup_params)); 611 612 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 613 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 614 local->sparm.b5.a_beacon_period[0] = 615 (beacon_period >> 8) & 0xff; 616 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 617 if (psm) 618 local->sparm.b5.a_power_mgt_state = 1; 619 local->sparm.b5.a_curr_country_code = country; 620 local->sparm.b5.a_hop_pattern_length = 621 hop_pattern_length[(int)country]; 622 } 623 624 local->sparm.b4.a_network_type = net_type & 0x01; 625 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 626 627 if (essid != NULL) 628 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 629 } /* init_startup_params */ 630 631 /*===========================================================================*/ 632 static void verify_dl_startup(struct timer_list *t) 633 { 634 ray_dev_t *local = from_timer(local, t, timer); 635 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 636 UCHAR status; 637 struct pcmcia_device *link = local->finder; 638 639 if (!(pcmcia_dev_present(link))) { 640 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 641 return; 642 } 643 #if 0 644 { 645 int i; 646 printk(KERN_DEBUG 647 "verify_dl_startup parameters sent via ccs %d:\n", 648 local->dl_param_ccs); 649 for (i = 0; i < sizeof(struct b5_startup_params); i++) { 650 printk(" %2x", 651 (unsigned int)readb(local->sram + 652 HOST_TO_ECF_BASE + i)); 653 } 654 printk("\n"); 655 } 656 #endif 657 658 status = readb(&pccs->buffer_status); 659 if (status != CCS_BUFFER_FREE) { 660 printk(KERN_INFO 661 "Download startup params failed. Status = %d\n", 662 status); 663 local->card_status = CARD_DL_PARAM_ERROR; 664 return; 665 } 666 if (local->sparm.b4.a_network_type == ADHOC) 667 start_net(&local->timer); 668 else 669 join_net(&local->timer); 670 } /* end verify_dl_startup */ 671 672 /*===========================================================================*/ 673 /* Command card to start a network */ 674 static void start_net(struct timer_list *t) 675 { 676 ray_dev_t *local = from_timer(local, t, timer); 677 struct ccs __iomem *pccs; 678 int ccsindex; 679 struct pcmcia_device *link = local->finder; 680 if (!(pcmcia_dev_present(link))) { 681 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 682 return; 683 } 684 /* Fill in the CCS fields for the ECF */ 685 if ((ccsindex = get_free_ccs(local)) < 0) 686 return; 687 pccs = ccs_base(local) + ccsindex; 688 writeb(CCS_START_NETWORK, &pccs->cmd); 689 writeb(0, &pccs->var.start_network.update_param); 690 /* Interrupt the firmware to process the command */ 691 if (interrupt_ecf(local, ccsindex)) { 692 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 693 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 694 return; 695 } 696 local->card_status = CARD_DOING_ACQ; 697 } /* end start_net */ 698 699 /*===========================================================================*/ 700 /* Command card to join a network */ 701 static void join_net(struct timer_list *t) 702 { 703 ray_dev_t *local = from_timer(local, t, timer); 704 705 struct ccs __iomem *pccs; 706 int ccsindex; 707 struct pcmcia_device *link = local->finder; 708 709 if (!(pcmcia_dev_present(link))) { 710 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 711 return; 712 } 713 /* Fill in the CCS fields for the ECF */ 714 if ((ccsindex = get_free_ccs(local)) < 0) 715 return; 716 pccs = ccs_base(local) + ccsindex; 717 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 718 writeb(0, &pccs->var.join_network.update_param); 719 writeb(0, &pccs->var.join_network.net_initiated); 720 /* Interrupt the firmware to process the command */ 721 if (interrupt_ecf(local, ccsindex)) { 722 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 723 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 724 return; 725 } 726 local->card_status = CARD_DOING_ACQ; 727 } 728 729 730 static void ray_release(struct pcmcia_device *link) 731 { 732 struct net_device *dev = link->priv; 733 ray_dev_t *local = netdev_priv(dev); 734 735 dev_dbg(&link->dev, "ray_release\n"); 736 737 del_timer(&local->timer); 738 739 iounmap(local->sram); 740 iounmap(local->rmem); 741 iounmap(local->amem); 742 pcmcia_disable_device(link); 743 744 dev_dbg(&link->dev, "ray_release ending\n"); 745 } 746 747 static int ray_suspend(struct pcmcia_device *link) 748 { 749 struct net_device *dev = link->priv; 750 751 if (link->open) 752 netif_device_detach(dev); 753 754 return 0; 755 } 756 757 static int ray_resume(struct pcmcia_device *link) 758 { 759 struct net_device *dev = link->priv; 760 761 if (link->open) { 762 ray_reset(dev); 763 netif_device_attach(dev); 764 } 765 766 return 0; 767 } 768 769 /*===========================================================================*/ 770 static int ray_dev_init(struct net_device *dev) 771 { 772 #ifdef RAY_IMMEDIATE_INIT 773 int i; 774 #endif /* RAY_IMMEDIATE_INIT */ 775 ray_dev_t *local = netdev_priv(dev); 776 struct pcmcia_device *link = local->finder; 777 778 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 779 if (!(pcmcia_dev_present(link))) { 780 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 781 return -1; 782 } 783 #ifdef RAY_IMMEDIATE_INIT 784 /* Download startup parameters */ 785 if ((i = dl_startup_params(dev)) < 0) { 786 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 787 "returns 0x%x\n", i); 788 return -1; 789 } 790 #else /* RAY_IMMEDIATE_INIT */ 791 /* Postpone the card init so that we can still configure the card, 792 * for example using the Wireless Extensions. The init will happen 793 * in ray_open() - Jean II */ 794 dev_dbg(&link->dev, 795 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 796 local->card_status); 797 #endif /* RAY_IMMEDIATE_INIT */ 798 799 /* copy mac and broadcast addresses to linux device */ 800 eth_hw_addr_set(dev, local->sparm.b4.a_mac_addr); 801 eth_broadcast_addr(dev->broadcast); 802 803 dev_dbg(&link->dev, "ray_dev_init ending\n"); 804 return 0; 805 } 806 807 /*===========================================================================*/ 808 static int ray_dev_config(struct net_device *dev, struct ifmap *map) 809 { 810 ray_dev_t *local = netdev_priv(dev); 811 struct pcmcia_device *link = local->finder; 812 /* Dummy routine to satisfy device structure */ 813 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 814 if (!(pcmcia_dev_present(link))) { 815 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 816 return -1; 817 } 818 819 return 0; 820 } 821 822 /*===========================================================================*/ 823 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 824 struct net_device *dev) 825 { 826 ray_dev_t *local = netdev_priv(dev); 827 struct pcmcia_device *link = local->finder; 828 short length = skb->len; 829 830 if (!pcmcia_dev_present(link)) { 831 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 832 dev_kfree_skb(skb); 833 return NETDEV_TX_OK; 834 } 835 836 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 837 if (local->authentication_state == NEED_TO_AUTH) { 838 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 839 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 840 local->authentication_state = AUTHENTICATED; 841 netif_stop_queue(dev); 842 return NETDEV_TX_BUSY; 843 } 844 } 845 846 if (length < ETH_ZLEN) { 847 if (skb_padto(skb, ETH_ZLEN)) 848 return NETDEV_TX_OK; 849 length = ETH_ZLEN; 850 } 851 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 852 case XMIT_NO_CCS: 853 case XMIT_NEED_AUTH: 854 netif_stop_queue(dev); 855 return NETDEV_TX_BUSY; 856 case XMIT_NO_INTR: 857 case XMIT_MSG_BAD: 858 case XMIT_OK: 859 default: 860 dev_kfree_skb(skb); 861 } 862 863 return NETDEV_TX_OK; 864 } /* ray_dev_start_xmit */ 865 866 /*===========================================================================*/ 867 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 868 UCHAR msg_type) 869 { 870 ray_dev_t *local = netdev_priv(dev); 871 struct ccs __iomem *pccs; 872 int ccsindex; 873 int offset; 874 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 875 short int addr; /* Address of xmit buffer in card space */ 876 877 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 878 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 879 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 880 len); 881 return XMIT_MSG_BAD; 882 } 883 switch (ccsindex = get_free_tx_ccs(local)) { 884 case ECCSBUSY: 885 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 886 fallthrough; 887 case ECCSFULL: 888 pr_debug("ray_hw_xmit No free tx ccs\n"); 889 fallthrough; 890 case ECARDGONE: 891 netif_stop_queue(dev); 892 return XMIT_NO_CCS; 893 default: 894 break; 895 } 896 addr = TX_BUF_BASE + (ccsindex << 11); 897 898 if (msg_type == DATA_TYPE) { 899 local->stats.tx_bytes += len; 900 local->stats.tx_packets++; 901 } 902 903 ptx = local->sram + addr; 904 905 ray_build_header(local, ptx, msg_type, data); 906 if (translate) { 907 offset = translate_frame(local, ptx, data, len); 908 } else { /* Encapsulate frame */ 909 /* TBD TIB length will move address of ptx->var */ 910 memcpy_toio(&ptx->var, data, len); 911 offset = 0; 912 } 913 914 /* fill in the CCS */ 915 pccs = ccs_base(local) + ccsindex; 916 len += TX_HEADER_LENGTH + offset; 917 writeb(CCS_TX_REQUEST, &pccs->cmd); 918 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 919 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 920 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 921 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 922 /* TBD still need psm_cam? */ 923 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 924 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 925 writeb(0, &pccs->var.tx_request.antenna); 926 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 927 local->net_default_tx_rate); 928 929 /* Interrupt the firmware to process the command */ 930 if (interrupt_ecf(local, ccsindex)) { 931 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 932 /* TBD very inefficient to copy packet to buffer, and then not 933 send it, but the alternative is to queue the messages and that 934 won't be done for a while. Maybe set tbusy until a CCS is free? 935 */ 936 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 937 return XMIT_NO_INTR; 938 } 939 return XMIT_OK; 940 } /* end ray_hw_xmit */ 941 942 /*===========================================================================*/ 943 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 944 unsigned char *data, int len) 945 { 946 __be16 proto = ((struct ethhdr *)data)->h_proto; 947 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */ 948 pr_debug("ray_cs translate_frame DIX II\n"); 949 /* Copy LLC header to card buffer */ 950 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 951 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 952 (UCHAR *) &proto, 2); 953 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 954 /* This is the selective translation table, only 2 entries */ 955 writeb(0xf8, 956 &((struct snaphdr_t __iomem *)ptx->var)->org[2]); 957 } 958 /* Copy body of ethernet packet without ethernet header */ 959 memcpy_toio((void __iomem *)&ptx->var + 960 sizeof(struct snaphdr_t), data + ETH_HLEN, 961 len - ETH_HLEN); 962 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 963 } else { /* already 802 type, and proto is length */ 964 pr_debug("ray_cs translate_frame 802\n"); 965 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 966 pr_debug("ray_cs translate_frame evil IPX\n"); 967 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 968 return 0 - ETH_HLEN; 969 } 970 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 971 return 0 - ETH_HLEN; 972 } 973 /* TBD do other frame types */ 974 } /* end translate_frame */ 975 976 /*===========================================================================*/ 977 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 978 UCHAR msg_type, unsigned char *data) 979 { 980 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 981 /*** IEEE 802.11 Address field assignments ************* 982 TODS FROMDS addr_1 addr_2 addr_3 addr_4 983 Adhoc 0 0 dest src (terminal) BSSID N/A 984 AP to Terminal 0 1 dest AP(BSSID) source N/A 985 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 986 AP to AP 1 1 dest AP src AP dest source 987 *******************************************************/ 988 if (local->net_type == ADHOC) { 989 writeb(0, &ptx->mac.frame_ctl_2); 990 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 991 ADDRLEN); 992 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, 993 ADDRLEN); 994 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 995 } else { /* infrastructure */ 996 997 if (local->sparm.b4.a_acting_as_ap_status) { 998 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2); 999 memcpy_toio(ptx->mac.addr_1, 1000 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1001 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6); 1002 memcpy_toio(ptx->mac.addr_3, 1003 ((struct ethhdr *)data)->h_source, ADDRLEN); 1004 } else { /* Terminal */ 1005 1006 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2); 1007 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN); 1008 memcpy_toio(ptx->mac.addr_2, 1009 ((struct ethhdr *)data)->h_source, ADDRLEN); 1010 memcpy_toio(ptx->mac.addr_3, 1011 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1012 } 1013 } 1014 } /* end encapsulate_frame */ 1015 1016 /*====================================================================*/ 1017 1018 /*------------------------------------------------------------------*/ 1019 /* 1020 * Wireless Handler : get protocol name 1021 */ 1022 static int ray_get_name(struct net_device *dev, struct iw_request_info *info, 1023 union iwreq_data *wrqu, char *extra) 1024 { 1025 strcpy(wrqu->name, "IEEE 802.11-FH"); 1026 return 0; 1027 } 1028 1029 /*------------------------------------------------------------------*/ 1030 /* 1031 * Wireless Handler : set frequency 1032 */ 1033 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info, 1034 union iwreq_data *wrqu, char *extra) 1035 { 1036 ray_dev_t *local = netdev_priv(dev); 1037 int err = -EINPROGRESS; /* Call commit handler */ 1038 1039 /* Reject if card is already initialised */ 1040 if (local->card_status != CARD_AWAITING_PARAM) 1041 return -EBUSY; 1042 1043 /* Setting by channel number */ 1044 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0)) 1045 err = -EOPNOTSUPP; 1046 else 1047 local->sparm.b5.a_hop_pattern = wrqu->freq.m; 1048 1049 return err; 1050 } 1051 1052 /*------------------------------------------------------------------*/ 1053 /* 1054 * Wireless Handler : get frequency 1055 */ 1056 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info, 1057 union iwreq_data *wrqu, char *extra) 1058 { 1059 ray_dev_t *local = netdev_priv(dev); 1060 1061 wrqu->freq.m = local->sparm.b5.a_hop_pattern; 1062 wrqu->freq.e = 0; 1063 return 0; 1064 } 1065 1066 /*------------------------------------------------------------------*/ 1067 /* 1068 * Wireless Handler : set ESSID 1069 */ 1070 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info, 1071 union iwreq_data *wrqu, char *extra) 1072 { 1073 ray_dev_t *local = netdev_priv(dev); 1074 1075 /* Reject if card is already initialised */ 1076 if (local->card_status != CARD_AWAITING_PARAM) 1077 return -EBUSY; 1078 1079 /* Check if we asked for `any' */ 1080 if (wrqu->essid.flags == 0) 1081 /* Corey : can you do that ? */ 1082 return -EOPNOTSUPP; 1083 1084 /* Check the size of the string */ 1085 if (wrqu->essid.length > IW_ESSID_MAX_SIZE) 1086 return -E2BIG; 1087 1088 /* Set the ESSID in the card */ 1089 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE); 1090 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length); 1091 1092 return -EINPROGRESS; /* Call commit handler */ 1093 } 1094 1095 /*------------------------------------------------------------------*/ 1096 /* 1097 * Wireless Handler : get ESSID 1098 */ 1099 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info, 1100 union iwreq_data *wrqu, char *extra) 1101 { 1102 ray_dev_t *local = netdev_priv(dev); 1103 UCHAR tmp[IW_ESSID_MAX_SIZE + 1]; 1104 1105 /* Get the essid that was set */ 1106 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1107 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1108 tmp[IW_ESSID_MAX_SIZE] = '\0'; 1109 1110 /* Push it out ! */ 1111 wrqu->essid.length = strlen(tmp); 1112 wrqu->essid.flags = 1; /* active */ 1113 1114 return 0; 1115 } 1116 1117 /*------------------------------------------------------------------*/ 1118 /* 1119 * Wireless Handler : get AP address 1120 */ 1121 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info, 1122 union iwreq_data *wrqu, char *extra) 1123 { 1124 ray_dev_t *local = netdev_priv(dev); 1125 1126 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN); 1127 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1128 1129 return 0; 1130 } 1131 1132 /*------------------------------------------------------------------*/ 1133 /* 1134 * Wireless Handler : set Bit-Rate 1135 */ 1136 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info, 1137 union iwreq_data *wrqu, char *extra) 1138 { 1139 ray_dev_t *local = netdev_priv(dev); 1140 1141 /* Reject if card is already initialised */ 1142 if (local->card_status != CARD_AWAITING_PARAM) 1143 return -EBUSY; 1144 1145 /* Check if rate is in range */ 1146 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000)) 1147 return -EINVAL; 1148 1149 /* Hack for 1.5 Mb/s instead of 2 Mb/s */ 1150 if ((local->fw_ver == 0x55) && /* Please check */ 1151 (wrqu->bitrate.value == 2000000)) 1152 local->net_default_tx_rate = 3; 1153 else 1154 local->net_default_tx_rate = wrqu->bitrate.value / 500000; 1155 1156 return 0; 1157 } 1158 1159 /*------------------------------------------------------------------*/ 1160 /* 1161 * Wireless Handler : get Bit-Rate 1162 */ 1163 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info, 1164 union iwreq_data *wrqu, char *extra) 1165 { 1166 ray_dev_t *local = netdev_priv(dev); 1167 1168 if (local->net_default_tx_rate == 3) 1169 wrqu->bitrate.value = 2000000; /* Hum... */ 1170 else 1171 wrqu->bitrate.value = local->net_default_tx_rate * 500000; 1172 wrqu->bitrate.fixed = 0; /* We are in auto mode */ 1173 1174 return 0; 1175 } 1176 1177 /*------------------------------------------------------------------*/ 1178 /* 1179 * Wireless Handler : set RTS threshold 1180 */ 1181 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info, 1182 union iwreq_data *wrqu, char *extra) 1183 { 1184 ray_dev_t *local = netdev_priv(dev); 1185 int rthr = wrqu->rts.value; 1186 1187 /* Reject if card is already initialised */ 1188 if (local->card_status != CARD_AWAITING_PARAM) 1189 return -EBUSY; 1190 1191 /* if(wrq->u.rts.fixed == 0) we should complain */ 1192 if (wrqu->rts.disabled) 1193 rthr = 32767; 1194 else { 1195 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */ 1196 return -EINVAL; 1197 } 1198 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF; 1199 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF; 1200 1201 return -EINPROGRESS; /* Call commit handler */ 1202 } 1203 1204 /*------------------------------------------------------------------*/ 1205 /* 1206 * Wireless Handler : get RTS threshold 1207 */ 1208 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info, 1209 union iwreq_data *wrqu, char *extra) 1210 { 1211 ray_dev_t *local = netdev_priv(dev); 1212 1213 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8) 1214 + local->sparm.b5.a_rts_threshold[1]; 1215 wrqu->rts.disabled = (wrqu->rts.value == 32767); 1216 wrqu->rts.fixed = 1; 1217 1218 return 0; 1219 } 1220 1221 /*------------------------------------------------------------------*/ 1222 /* 1223 * Wireless Handler : set Fragmentation threshold 1224 */ 1225 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info, 1226 union iwreq_data *wrqu, char *extra) 1227 { 1228 ray_dev_t *local = netdev_priv(dev); 1229 int fthr = wrqu->frag.value; 1230 1231 /* Reject if card is already initialised */ 1232 if (local->card_status != CARD_AWAITING_PARAM) 1233 return -EBUSY; 1234 1235 /* if(wrq->u.frag.fixed == 0) should complain */ 1236 if (wrqu->frag.disabled) 1237 fthr = 32767; 1238 else { 1239 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */ 1240 return -EINVAL; 1241 } 1242 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF; 1243 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF; 1244 1245 return -EINPROGRESS; /* Call commit handler */ 1246 } 1247 1248 /*------------------------------------------------------------------*/ 1249 /* 1250 * Wireless Handler : get Fragmentation threshold 1251 */ 1252 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info, 1253 union iwreq_data *wrqu, char *extra) 1254 { 1255 ray_dev_t *local = netdev_priv(dev); 1256 1257 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8) 1258 + local->sparm.b5.a_frag_threshold[1]; 1259 wrqu->frag.disabled = (wrqu->frag.value == 32767); 1260 wrqu->frag.fixed = 1; 1261 1262 return 0; 1263 } 1264 1265 /*------------------------------------------------------------------*/ 1266 /* 1267 * Wireless Handler : set Mode of Operation 1268 */ 1269 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info, 1270 union iwreq_data *wrqu, char *extra) 1271 { 1272 ray_dev_t *local = netdev_priv(dev); 1273 int err = -EINPROGRESS; /* Call commit handler */ 1274 char card_mode = 1; 1275 1276 /* Reject if card is already initialised */ 1277 if (local->card_status != CARD_AWAITING_PARAM) 1278 return -EBUSY; 1279 1280 switch (wrqu->mode) { 1281 case IW_MODE_ADHOC: 1282 card_mode = 0; 1283 fallthrough; 1284 case IW_MODE_INFRA: 1285 local->sparm.b5.a_network_type = card_mode; 1286 break; 1287 default: 1288 err = -EINVAL; 1289 } 1290 1291 return err; 1292 } 1293 1294 /*------------------------------------------------------------------*/ 1295 /* 1296 * Wireless Handler : get Mode of Operation 1297 */ 1298 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info, 1299 union iwreq_data *wrqu, char *extra) 1300 { 1301 ray_dev_t *local = netdev_priv(dev); 1302 1303 if (local->sparm.b5.a_network_type) 1304 wrqu->mode = IW_MODE_INFRA; 1305 else 1306 wrqu->mode = IW_MODE_ADHOC; 1307 1308 return 0; 1309 } 1310 1311 /*------------------------------------------------------------------*/ 1312 /* 1313 * Wireless Handler : get range info 1314 */ 1315 static int ray_get_range(struct net_device *dev, struct iw_request_info *info, 1316 union iwreq_data *wrqu, char *extra) 1317 { 1318 struct iw_range *range = (struct iw_range *)extra; 1319 1320 memset(range, 0, sizeof(struct iw_range)); 1321 1322 /* Set the length (very important for backward compatibility) */ 1323 wrqu->data.length = sizeof(struct iw_range); 1324 1325 /* Set the Wireless Extension versions */ 1326 range->we_version_compiled = WIRELESS_EXT; 1327 range->we_version_source = 9; 1328 1329 /* Set information in the range struct */ 1330 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */ 1331 range->num_channels = hop_pattern_length[(int)country]; 1332 range->num_frequency = 0; 1333 range->max_qual.qual = 0; 1334 range->max_qual.level = 255; /* What's the correct value ? */ 1335 range->max_qual.noise = 255; /* Idem */ 1336 range->num_bitrates = 2; 1337 range->bitrate[0] = 1000000; /* 1 Mb/s */ 1338 range->bitrate[1] = 2000000; /* 2 Mb/s */ 1339 return 0; 1340 } 1341 1342 /*------------------------------------------------------------------*/ 1343 /* 1344 * Wireless Private Handler : set framing mode 1345 */ 1346 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info, 1347 union iwreq_data *wrqu, char *extra) 1348 { 1349 translate = !!*(extra); /* Set framing mode */ 1350 1351 return 0; 1352 } 1353 1354 /*------------------------------------------------------------------*/ 1355 /* 1356 * Wireless Private Handler : get framing mode 1357 */ 1358 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info, 1359 union iwreq_data *wrqu, char *extra) 1360 { 1361 *(extra) = translate; 1362 1363 return 0; 1364 } 1365 1366 /*------------------------------------------------------------------*/ 1367 /* 1368 * Wireless Private Handler : get country 1369 */ 1370 static int ray_get_country(struct net_device *dev, struct iw_request_info *info, 1371 union iwreq_data *wrqu, char *extra) 1372 { 1373 *(extra) = country; 1374 1375 return 0; 1376 } 1377 1378 /*------------------------------------------------------------------*/ 1379 /* 1380 * Commit handler : called after a bunch of SET operations 1381 */ 1382 static int ray_commit(struct net_device *dev, struct iw_request_info *info, 1383 union iwreq_data *wrqu, char *extra) 1384 { 1385 return 0; 1386 } 1387 1388 /*------------------------------------------------------------------*/ 1389 /* 1390 * Stats handler : return Wireless Stats 1391 */ 1392 static iw_stats *ray_get_wireless_stats(struct net_device *dev) 1393 { 1394 ray_dev_t *local = netdev_priv(dev); 1395 struct pcmcia_device *link = local->finder; 1396 struct status __iomem *p = local->sram + STATUS_BASE; 1397 1398 local->wstats.status = local->card_status; 1399 #ifdef WIRELESS_SPY 1400 if ((local->spy_data.spy_number > 0) 1401 && (local->sparm.b5.a_network_type == 0)) { 1402 /* Get it from the first node in spy list */ 1403 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual; 1404 local->wstats.qual.level = local->spy_data.spy_stat[0].level; 1405 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise; 1406 local->wstats.qual.updated = 1407 local->spy_data.spy_stat[0].updated; 1408 } 1409 #endif /* WIRELESS_SPY */ 1410 1411 if (pcmcia_dev_present(link)) { 1412 local->wstats.qual.noise = readb(&p->rxnoise); 1413 local->wstats.qual.updated |= 4; 1414 } 1415 1416 return &local->wstats; 1417 } /* end ray_get_wireless_stats */ 1418 1419 /*------------------------------------------------------------------*/ 1420 /* 1421 * Structures to export the Wireless Handlers 1422 */ 1423 1424 static const iw_handler ray_handler[] = { 1425 IW_HANDLER(SIOCSIWCOMMIT, ray_commit), 1426 IW_HANDLER(SIOCGIWNAME, ray_get_name), 1427 IW_HANDLER(SIOCSIWFREQ, ray_set_freq), 1428 IW_HANDLER(SIOCGIWFREQ, ray_get_freq), 1429 IW_HANDLER(SIOCSIWMODE, ray_set_mode), 1430 IW_HANDLER(SIOCGIWMODE, ray_get_mode), 1431 IW_HANDLER(SIOCGIWRANGE, ray_get_range), 1432 #ifdef WIRELESS_SPY 1433 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1434 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1435 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1436 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1437 #endif /* WIRELESS_SPY */ 1438 IW_HANDLER(SIOCGIWAP, ray_get_wap), 1439 IW_HANDLER(SIOCSIWESSID, ray_set_essid), 1440 IW_HANDLER(SIOCGIWESSID, ray_get_essid), 1441 IW_HANDLER(SIOCSIWRATE, ray_set_rate), 1442 IW_HANDLER(SIOCGIWRATE, ray_get_rate), 1443 IW_HANDLER(SIOCSIWRTS, ray_set_rts), 1444 IW_HANDLER(SIOCGIWRTS, ray_get_rts), 1445 IW_HANDLER(SIOCSIWFRAG, ray_set_frag), 1446 IW_HANDLER(SIOCGIWFRAG, ray_get_frag), 1447 }; 1448 1449 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */ 1450 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */ 1451 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */ 1452 1453 static const iw_handler ray_private_handler[] = { 1454 [0] = ray_set_framing, 1455 [1] = ray_get_framing, 1456 [3] = ray_get_country, 1457 }; 1458 1459 static const struct iw_priv_args ray_private_args[] = { 1460 /* cmd, set_args, get_args, name */ 1461 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, 1462 "set_framing"}, 1463 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1464 "get_framing"}, 1465 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1466 "get_country"}, 1467 }; 1468 1469 static const struct iw_handler_def ray_handler_def = { 1470 .num_standard = ARRAY_SIZE(ray_handler), 1471 .num_private = ARRAY_SIZE(ray_private_handler), 1472 .num_private_args = ARRAY_SIZE(ray_private_args), 1473 .standard = ray_handler, 1474 .private = ray_private_handler, 1475 .private_args = ray_private_args, 1476 .get_wireless_stats = ray_get_wireless_stats, 1477 }; 1478 1479 /*===========================================================================*/ 1480 static int ray_open(struct net_device *dev) 1481 { 1482 ray_dev_t *local = netdev_priv(dev); 1483 struct pcmcia_device *link; 1484 link = local->finder; 1485 1486 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name); 1487 1488 if (link->open == 0) 1489 local->num_multi = 0; 1490 link->open++; 1491 1492 /* If the card is not started, time to start it ! - Jean II */ 1493 if (local->card_status == CARD_AWAITING_PARAM) { 1494 int i; 1495 1496 dev_dbg(&link->dev, "ray_open: doing init now !\n"); 1497 1498 /* Download startup parameters */ 1499 if ((i = dl_startup_params(dev)) < 0) { 1500 printk(KERN_INFO 1501 "ray_dev_init dl_startup_params failed - " 1502 "returns 0x%x\n", i); 1503 return -1; 1504 } 1505 } 1506 1507 if (sniffer) 1508 netif_stop_queue(dev); 1509 else 1510 netif_start_queue(dev); 1511 1512 dev_dbg(&link->dev, "ray_open ending\n"); 1513 return 0; 1514 } /* end ray_open */ 1515 1516 /*===========================================================================*/ 1517 static int ray_dev_close(struct net_device *dev) 1518 { 1519 ray_dev_t *local = netdev_priv(dev); 1520 struct pcmcia_device *link; 1521 link = local->finder; 1522 1523 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name); 1524 1525 link->open--; 1526 netif_stop_queue(dev); 1527 1528 /* In here, we should stop the hardware (stop card from beeing active) 1529 * and set local->card_status to CARD_AWAITING_PARAM, so that while the 1530 * card is closed we can chage its configuration. 1531 * Probably also need a COR reset to get sane state - Jean II */ 1532 1533 return 0; 1534 } /* end ray_dev_close */ 1535 1536 /*===========================================================================*/ 1537 static void ray_reset(struct net_device *dev) 1538 { 1539 pr_debug("ray_reset entered\n"); 1540 } 1541 1542 /*===========================================================================*/ 1543 /* Cause a firmware interrupt if it is ready for one */ 1544 /* Return nonzero if not ready */ 1545 static int interrupt_ecf(ray_dev_t *local, int ccs) 1546 { 1547 int i = 50; 1548 struct pcmcia_device *link = local->finder; 1549 1550 if (!(pcmcia_dev_present(link))) { 1551 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n"); 1552 return -1; 1553 } 1554 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs); 1555 1556 while (i && 1557 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & 1558 ECF_INTR_SET)) 1559 i--; 1560 if (i == 0) { 1561 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n"); 1562 return -1; 1563 } 1564 /* Fill the mailbox, then kick the card */ 1565 writeb(ccs, local->sram + SCB_BASE); 1566 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET); 1567 return 0; 1568 } /* interrupt_ecf */ 1569 1570 /*===========================================================================*/ 1571 /* Get next free transmit CCS */ 1572 /* Return - index of current tx ccs */ 1573 static int get_free_tx_ccs(ray_dev_t *local) 1574 { 1575 int i; 1576 struct ccs __iomem *pccs = ccs_base(local); 1577 struct pcmcia_device *link = local->finder; 1578 1579 if (!(pcmcia_dev_present(link))) { 1580 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n"); 1581 return ECARDGONE; 1582 } 1583 1584 if (test_and_set_bit(0, &local->tx_ccs_lock)) { 1585 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n"); 1586 return ECCSBUSY; 1587 } 1588 1589 for (i = 0; i < NUMBER_OF_TX_CCS; i++) { 1590 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1591 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1592 writeb(CCS_END_LIST, &(pccs + i)->link); 1593 local->tx_ccs_lock = 0; 1594 return i; 1595 } 1596 } 1597 local->tx_ccs_lock = 0; 1598 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n"); 1599 return ECCSFULL; 1600 } /* get_free_tx_ccs */ 1601 1602 /*===========================================================================*/ 1603 /* Get next free CCS */ 1604 /* Return - index of current ccs */ 1605 static int get_free_ccs(ray_dev_t *local) 1606 { 1607 int i; 1608 struct ccs __iomem *pccs = ccs_base(local); 1609 struct pcmcia_device *link = local->finder; 1610 1611 if (!(pcmcia_dev_present(link))) { 1612 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n"); 1613 return ECARDGONE; 1614 } 1615 if (test_and_set_bit(0, &local->ccs_lock)) { 1616 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n"); 1617 return ECCSBUSY; 1618 } 1619 1620 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) { 1621 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1622 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1623 writeb(CCS_END_LIST, &(pccs + i)->link); 1624 local->ccs_lock = 0; 1625 return i; 1626 } 1627 } 1628 local->ccs_lock = 0; 1629 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n"); 1630 return ECCSFULL; 1631 } /* get_free_ccs */ 1632 1633 /*===========================================================================*/ 1634 static void authenticate_timeout(struct timer_list *t) 1635 { 1636 ray_dev_t *local = from_timer(local, t, timer); 1637 del_timer(&local->timer); 1638 printk(KERN_INFO "ray_cs Authentication with access point failed" 1639 " - timeout\n"); 1640 join_net(&local->timer); 1641 } 1642 1643 /*===========================================================================*/ 1644 static int parse_addr(char *in_str, UCHAR *out) 1645 { 1646 int i, k; 1647 int len; 1648 1649 if (in_str == NULL) 1650 return 0; 1651 len = strnlen(in_str, ADDRLEN * 2 + 1) - 1; 1652 if (len < 1) 1653 return 0; 1654 memset(out, 0, ADDRLEN); 1655 1656 i = 5; 1657 1658 while (len > 0) { 1659 if ((k = hex_to_bin(in_str[len--])) != -1) 1660 out[i] = k; 1661 else 1662 return 0; 1663 1664 if (len == 0) 1665 break; 1666 if ((k = hex_to_bin(in_str[len--])) != -1) 1667 out[i] += k << 4; 1668 else 1669 return 0; 1670 if (!i--) 1671 break; 1672 } 1673 return 1; 1674 } 1675 1676 /*===========================================================================*/ 1677 static struct net_device_stats *ray_get_stats(struct net_device *dev) 1678 { 1679 ray_dev_t *local = netdev_priv(dev); 1680 struct pcmcia_device *link = local->finder; 1681 struct status __iomem *p = local->sram + STATUS_BASE; 1682 if (!(pcmcia_dev_present(link))) { 1683 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1684 return &local->stats; 1685 } 1686 if (readb(&p->mrx_overflow_for_host)) { 1687 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1688 writeb(0, &p->mrx_overflow); 1689 writeb(0, &p->mrx_overflow_for_host); 1690 } 1691 if (readb(&p->mrx_checksum_error_for_host)) { 1692 local->stats.rx_crc_errors += 1693 swab16(readw(&p->mrx_checksum_error)); 1694 writeb(0, &p->mrx_checksum_error); 1695 writeb(0, &p->mrx_checksum_error_for_host); 1696 } 1697 if (readb(&p->rx_hec_error_for_host)) { 1698 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1699 writeb(0, &p->rx_hec_error); 1700 writeb(0, &p->rx_hec_error_for_host); 1701 } 1702 return &local->stats; 1703 } 1704 1705 /*===========================================================================*/ 1706 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1707 int len) 1708 { 1709 ray_dev_t *local = netdev_priv(dev); 1710 struct pcmcia_device *link = local->finder; 1711 int ccsindex; 1712 int i; 1713 struct ccs __iomem *pccs; 1714 1715 if (!(pcmcia_dev_present(link))) { 1716 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1717 return; 1718 } 1719 1720 if ((ccsindex = get_free_ccs(local)) < 0) { 1721 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1722 return; 1723 } 1724 pccs = ccs_base(local) + ccsindex; 1725 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1726 writeb(objid, &pccs->var.update_param.object_id); 1727 writeb(1, &pccs->var.update_param.number_objects); 1728 writeb(0, &pccs->var.update_param.failure_cause); 1729 for (i = 0; i < len; i++) { 1730 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1731 } 1732 /* Interrupt the firmware to process the command */ 1733 if (interrupt_ecf(local, ccsindex)) { 1734 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1735 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1736 } 1737 } 1738 1739 /*===========================================================================*/ 1740 static void ray_update_multi_list(struct net_device *dev, int all) 1741 { 1742 int ccsindex; 1743 struct ccs __iomem *pccs; 1744 ray_dev_t *local = netdev_priv(dev); 1745 struct pcmcia_device *link = local->finder; 1746 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1747 1748 if (!(pcmcia_dev_present(link))) { 1749 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1750 return; 1751 } else 1752 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1753 if ((ccsindex = get_free_ccs(local)) < 0) { 1754 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1755 return; 1756 } 1757 pccs = ccs_base(local) + ccsindex; 1758 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1759 1760 if (all) { 1761 writeb(0xff, &pccs->var); 1762 local->num_multi = 0xff; 1763 } else { 1764 struct netdev_hw_addr *ha; 1765 int i = 0; 1766 1767 /* Copy the kernel's list of MC addresses to card */ 1768 netdev_for_each_mc_addr(ha, dev) { 1769 memcpy_toio(p, ha->addr, ETH_ALEN); 1770 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n", 1771 ha->addr); 1772 p += ETH_ALEN; 1773 i++; 1774 } 1775 if (i > 256 / ADDRLEN) 1776 i = 256 / ADDRLEN; 1777 writeb((UCHAR) i, &pccs->var); 1778 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1779 /* Interrupt the firmware to process the command */ 1780 local->num_multi = i; 1781 } 1782 if (interrupt_ecf(local, ccsindex)) { 1783 dev_dbg(&link->dev, 1784 "ray_cs update_multi failed - ECF not ready for intr\n"); 1785 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1786 } 1787 } /* end ray_update_multi_list */ 1788 1789 /*===========================================================================*/ 1790 static void set_multicast_list(struct net_device *dev) 1791 { 1792 ray_dev_t *local = netdev_priv(dev); 1793 UCHAR promisc; 1794 1795 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1796 1797 if (dev->flags & IFF_PROMISC) { 1798 if (local->sparm.b5.a_promiscuous_mode == 0) { 1799 pr_debug("ray_cs set_multicast_list promisc on\n"); 1800 local->sparm.b5.a_promiscuous_mode = 1; 1801 promisc = 1; 1802 ray_update_parm(dev, OBJID_promiscuous_mode, 1803 &promisc, sizeof(promisc)); 1804 } 1805 } else { 1806 if (local->sparm.b5.a_promiscuous_mode == 1) { 1807 pr_debug("ray_cs set_multicast_list promisc off\n"); 1808 local->sparm.b5.a_promiscuous_mode = 0; 1809 promisc = 0; 1810 ray_update_parm(dev, OBJID_promiscuous_mode, 1811 &promisc, sizeof(promisc)); 1812 } 1813 } 1814 1815 if (dev->flags & IFF_ALLMULTI) 1816 ray_update_multi_list(dev, 1); 1817 else { 1818 if (local->num_multi != netdev_mc_count(dev)) 1819 ray_update_multi_list(dev, 0); 1820 } 1821 } /* end set_multicast_list */ 1822 1823 /*============================================================================= 1824 * All routines below here are run at interrupt time. 1825 =============================================================================*/ 1826 static irqreturn_t ray_interrupt(int irq, void *dev_id) 1827 { 1828 struct net_device *dev = (struct net_device *)dev_id; 1829 struct pcmcia_device *link; 1830 ray_dev_t *local; 1831 struct ccs __iomem *pccs; 1832 struct rcs __iomem *prcs; 1833 UCHAR rcsindex; 1834 UCHAR tmp; 1835 UCHAR cmd; 1836 UCHAR status; 1837 UCHAR memtmp[ESSID_SIZE + 1]; 1838 1839 1840 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1841 return IRQ_NONE; 1842 1843 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1844 1845 local = netdev_priv(dev); 1846 link = local->finder; 1847 if (!pcmcia_dev_present(link)) { 1848 pr_debug( 1849 "ray_cs interrupt from device not present or suspended.\n"); 1850 return IRQ_NONE; 1851 } 1852 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1853 1854 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1855 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1856 clear_interrupt(local); 1857 return IRQ_HANDLED; 1858 } 1859 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1860 pccs = ccs_base(local) + rcsindex; 1861 cmd = readb(&pccs->cmd); 1862 status = readb(&pccs->buffer_status); 1863 switch (cmd) { 1864 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1865 del_timer(&local->timer); 1866 if (status == CCS_COMMAND_COMPLETE) { 1867 dev_dbg(&link->dev, 1868 "ray_cs interrupt download_startup_parameters OK\n"); 1869 } else { 1870 dev_dbg(&link->dev, 1871 "ray_cs interrupt download_startup_parameters fail\n"); 1872 } 1873 break; 1874 case CCS_UPDATE_PARAMS: 1875 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1876 if (status != CCS_COMMAND_COMPLETE) { 1877 tmp = 1878 readb(&pccs->var.update_param. 1879 failure_cause); 1880 dev_dbg(&link->dev, 1881 "ray_cs interrupt update params failed - reason %d\n", 1882 tmp); 1883 } 1884 break; 1885 case CCS_REPORT_PARAMS: 1886 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1887 break; 1888 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1889 dev_dbg(&link->dev, 1890 "ray_cs interrupt CCS Update Multicast List done\n"); 1891 break; 1892 case CCS_UPDATE_POWER_SAVINGS_MODE: 1893 dev_dbg(&link->dev, 1894 "ray_cs interrupt update power save mode done\n"); 1895 break; 1896 case CCS_START_NETWORK: 1897 case CCS_JOIN_NETWORK: 1898 memcpy(memtmp, local->sparm.b4.a_current_ess_id, 1899 ESSID_SIZE); 1900 memtmp[ESSID_SIZE] = '\0'; 1901 1902 if (status == CCS_COMMAND_COMPLETE) { 1903 if (readb 1904 (&pccs->var.start_network.net_initiated) == 1905 1) { 1906 dev_dbg(&link->dev, 1907 "ray_cs interrupt network \"%s\" started\n", 1908 memtmp); 1909 } else { 1910 dev_dbg(&link->dev, 1911 "ray_cs interrupt network \"%s\" joined\n", 1912 memtmp); 1913 } 1914 memcpy_fromio(&local->bss_id, 1915 pccs->var.start_network.bssid, 1916 ADDRLEN); 1917 1918 if (local->fw_ver == 0x55) 1919 local->net_default_tx_rate = 3; 1920 else 1921 local->net_default_tx_rate = 1922 readb(&pccs->var.start_network. 1923 net_default_tx_rate); 1924 local->encryption = 1925 readb(&pccs->var.start_network.encryption); 1926 if (!sniffer && (local->net_type == INFRA) 1927 && !(local->sparm.b4.a_acting_as_ap_status)) { 1928 authenticate(local); 1929 } 1930 local->card_status = CARD_ACQ_COMPLETE; 1931 } else { 1932 local->card_status = CARD_ACQ_FAILED; 1933 1934 del_timer(&local->timer); 1935 local->timer.expires = jiffies + HZ * 5; 1936 if (status == CCS_START_NETWORK) { 1937 dev_dbg(&link->dev, 1938 "ray_cs interrupt network \"%s\" start failed\n", 1939 memtmp); 1940 local->timer.function = start_net; 1941 } else { 1942 dev_dbg(&link->dev, 1943 "ray_cs interrupt network \"%s\" join failed\n", 1944 memtmp); 1945 local->timer.function = join_net; 1946 } 1947 add_timer(&local->timer); 1948 } 1949 break; 1950 case CCS_START_ASSOCIATION: 1951 if (status == CCS_COMMAND_COMPLETE) { 1952 local->card_status = CARD_ASSOC_COMPLETE; 1953 dev_dbg(&link->dev, "ray_cs association successful\n"); 1954 } else { 1955 dev_dbg(&link->dev, "ray_cs association failed,\n"); 1956 local->card_status = CARD_ASSOC_FAILED; 1957 join_net(&local->timer); 1958 } 1959 break; 1960 case CCS_TX_REQUEST: 1961 if (status == CCS_COMMAND_COMPLETE) { 1962 dev_dbg(&link->dev, 1963 "ray_cs interrupt tx request complete\n"); 1964 } else { 1965 dev_dbg(&link->dev, 1966 "ray_cs interrupt tx request failed\n"); 1967 } 1968 if (!sniffer) 1969 netif_start_queue(dev); 1970 netif_wake_queue(dev); 1971 break; 1972 case CCS_TEST_MEMORY: 1973 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 1974 break; 1975 case CCS_SHUTDOWN: 1976 dev_dbg(&link->dev, 1977 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 1978 break; 1979 case CCS_DUMP_MEMORY: 1980 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 1981 break; 1982 case CCS_START_TIMER: 1983 dev_dbg(&link->dev, 1984 "ray_cs interrupt DING - raylink timer expired\n"); 1985 break; 1986 default: 1987 dev_dbg(&link->dev, 1988 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 1989 rcsindex, cmd); 1990 } 1991 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 1992 } else { /* It's an RCS */ 1993 1994 prcs = rcs_base(local) + rcsindex; 1995 1996 switch (readb(&prcs->interrupt_id)) { 1997 case PROCESS_RX_PACKET: 1998 ray_rx(dev, local, prcs); 1999 break; 2000 case REJOIN_NET_COMPLETE: 2001 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2002 local->card_status = CARD_ACQ_COMPLETE; 2003 /* do we need to clear tx buffers CCS's? */ 2004 if (local->sparm.b4.a_network_type == ADHOC) { 2005 if (!sniffer) 2006 netif_start_queue(dev); 2007 } else { 2008 memcpy_fromio(&local->bss_id, 2009 prcs->var.rejoin_net_complete. 2010 bssid, ADDRLEN); 2011 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n", 2012 local->bss_id); 2013 if (!sniffer) 2014 authenticate(local); 2015 } 2016 break; 2017 case ROAMING_INITIATED: 2018 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2019 netif_stop_queue(dev); 2020 local->card_status = CARD_DOING_ACQ; 2021 break; 2022 case JAPAN_CALL_SIGN_RXD: 2023 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2024 break; 2025 default: 2026 dev_dbg(&link->dev, 2027 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2028 rcsindex, 2029 (unsigned int)readb(&prcs->interrupt_id)); 2030 break; 2031 } 2032 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2033 } 2034 clear_interrupt(local); 2035 return IRQ_HANDLED; 2036 } /* ray_interrupt */ 2037 2038 /*===========================================================================*/ 2039 static void ray_rx(struct net_device *dev, ray_dev_t *local, 2040 struct rcs __iomem *prcs) 2041 { 2042 int rx_len; 2043 unsigned int pkt_addr; 2044 void __iomem *pmsg; 2045 pr_debug("ray_rx process rx packet\n"); 2046 2047 /* Calculate address of packet within Rx buffer */ 2048 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2049 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2050 /* Length of first packet fragment */ 2051 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2052 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2053 2054 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2055 pmsg = local->rmem + pkt_addr; 2056 switch (readb(pmsg)) { 2057 case DATA_TYPE: 2058 pr_debug("ray_rx data type\n"); 2059 rx_data(dev, prcs, pkt_addr, rx_len); 2060 break; 2061 case AUTHENTIC_TYPE: 2062 pr_debug("ray_rx authentic type\n"); 2063 if (sniffer) 2064 rx_data(dev, prcs, pkt_addr, rx_len); 2065 else 2066 rx_authenticate(local, prcs, pkt_addr, rx_len); 2067 break; 2068 case DEAUTHENTIC_TYPE: 2069 pr_debug("ray_rx deauth type\n"); 2070 if (sniffer) 2071 rx_data(dev, prcs, pkt_addr, rx_len); 2072 else 2073 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2074 break; 2075 case NULL_MSG_TYPE: 2076 pr_debug("ray_cs rx NULL msg\n"); 2077 break; 2078 case BEACON_TYPE: 2079 pr_debug("ray_rx beacon type\n"); 2080 if (sniffer) 2081 rx_data(dev, prcs, pkt_addr, rx_len); 2082 2083 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2084 rx_len < sizeof(struct beacon_rx) ? 2085 rx_len : sizeof(struct beacon_rx)); 2086 2087 local->beacon_rxed = 1; 2088 /* Get the statistics so the card counters never overflow */ 2089 ray_get_stats(dev); 2090 break; 2091 default: 2092 pr_debug("ray_cs unknown pkt type %2x\n", 2093 (unsigned int)readb(pmsg)); 2094 break; 2095 } 2096 2097 } /* end ray_rx */ 2098 2099 /*===========================================================================*/ 2100 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2101 unsigned int pkt_addr, int rx_len) 2102 { 2103 struct sk_buff *skb = NULL; 2104 struct rcs __iomem *prcslink = prcs; 2105 ray_dev_t *local = netdev_priv(dev); 2106 UCHAR *rx_ptr; 2107 int total_len; 2108 int tmp; 2109 #ifdef WIRELESS_SPY 2110 int siglev = local->last_rsl; 2111 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2112 #endif 2113 2114 if (!sniffer) { 2115 if (translate) { 2116 /* TBD length needs fixing for translated header */ 2117 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2118 rx_len > 2119 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2120 FCS_LEN)) { 2121 pr_debug( 2122 "ray_cs invalid packet length %d received\n", 2123 rx_len); 2124 return; 2125 } 2126 } else { /* encapsulated ethernet */ 2127 2128 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2129 rx_len > 2130 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2131 FCS_LEN)) { 2132 pr_debug( 2133 "ray_cs invalid packet length %d received\n", 2134 rx_len); 2135 return; 2136 } 2137 } 2138 } 2139 pr_debug("ray_cs rx_data packet\n"); 2140 /* If fragmented packet, verify sizes of fragments add up */ 2141 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2142 pr_debug("ray_cs rx'ed fragment\n"); 2143 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2144 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2145 total_len = tmp; 2146 prcslink = prcs; 2147 do { 2148 tmp -= 2149 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2150 << 8) 2151 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2152 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2153 == 0xFF || tmp < 0) 2154 break; 2155 prcslink = rcs_base(local) 2156 + readb(&prcslink->link_field); 2157 } while (1); 2158 2159 if (tmp < 0) { 2160 pr_debug( 2161 "ray_cs rx_data fragment lengths don't add up\n"); 2162 local->stats.rx_dropped++; 2163 release_frag_chain(local, prcs); 2164 return; 2165 } 2166 } else { /* Single unfragmented packet */ 2167 total_len = rx_len; 2168 } 2169 2170 skb = dev_alloc_skb(total_len + 5); 2171 if (skb == NULL) { 2172 pr_debug("ray_cs rx_data could not allocate skb\n"); 2173 local->stats.rx_dropped++; 2174 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2175 release_frag_chain(local, prcs); 2176 return; 2177 } 2178 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2179 2180 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2181 rx_len); 2182 2183 /************************/ 2184 /* Reserve enough room for the whole damn packet. */ 2185 rx_ptr = skb_put(skb, total_len); 2186 /* Copy the whole packet to sk_buff */ 2187 rx_ptr += 2188 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2189 /* Get source address */ 2190 #ifdef WIRELESS_SPY 2191 skb_copy_from_linear_data_offset(skb, 2192 offsetof(struct mac_header, addr_2), 2193 linksrcaddr, ETH_ALEN); 2194 #endif 2195 /* Now, deal with encapsulation/translation/sniffer */ 2196 if (!sniffer) { 2197 if (!translate) { 2198 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2199 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2200 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2201 } else { 2202 /* Do translation */ 2203 untranslate(local, skb, total_len); 2204 } 2205 } else { /* sniffer mode, so just pass whole packet */ 2206 } 2207 2208 /************************/ 2209 /* Now pick up the rest of the fragments if any */ 2210 tmp = 17; 2211 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2212 prcslink = prcs; 2213 pr_debug("ray_cs rx_data in fragment loop\n"); 2214 do { 2215 prcslink = rcs_base(local) 2216 + 2217 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2218 rx_len = 2219 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2220 << 8) 2221 + 2222 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2223 & RX_BUFF_END; 2224 pkt_addr = 2225 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2226 8) 2227 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2228 & RX_BUFF_END; 2229 2230 rx_ptr += 2231 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2232 2233 } while (tmp-- && 2234 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2235 0xFF); 2236 release_frag_chain(local, prcs); 2237 } 2238 2239 skb->protocol = eth_type_trans(skb, dev); 2240 netif_rx(skb); 2241 local->stats.rx_packets++; 2242 local->stats.rx_bytes += total_len; 2243 2244 /* Gather signal strength per address */ 2245 #ifdef WIRELESS_SPY 2246 /* For the Access Point or the node having started the ad-hoc net 2247 * note : ad-hoc work only in some specific configurations, but we 2248 * kludge in ray_get_wireless_stats... */ 2249 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2250 /* Update statistics */ 2251 /*local->wstats.qual.qual = none ? */ 2252 local->wstats.qual.level = siglev; 2253 /*local->wstats.qual.noise = none ? */ 2254 local->wstats.qual.updated = 0x2; 2255 } 2256 /* Now, update the spy stuff */ 2257 { 2258 struct iw_quality wstats; 2259 wstats.level = siglev; 2260 /* wstats.noise = none ? */ 2261 /* wstats.qual = none ? */ 2262 wstats.updated = 0x2; 2263 /* Update spy records */ 2264 wireless_spy_update(dev, linksrcaddr, &wstats); 2265 } 2266 #endif /* WIRELESS_SPY */ 2267 } /* end rx_data */ 2268 2269 /*===========================================================================*/ 2270 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2271 { 2272 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2273 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2274 __be16 type = *(__be16 *) psnap->ethertype; 2275 int delta; 2276 struct ethhdr *peth; 2277 UCHAR srcaddr[ADDRLEN]; 2278 UCHAR destaddr[ADDRLEN]; 2279 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2280 static const UCHAR org_1042[3] = { 0, 0, 0 }; 2281 2282 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2283 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2284 2285 #if 0 2286 if { 2287 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", 2288 DUMP_PREFIX_NONE, 16, 1, 2289 skb->data, 64, true); 2290 printk(KERN_DEBUG 2291 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", 2292 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, 2293 psnap->org[0], psnap->org[1], psnap->org[2]); 2294 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data); 2295 } 2296 #endif 2297 2298 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2299 /* not a snap type so leave it alone */ 2300 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2301 psnap->dsap, psnap->ssap, psnap->ctrl); 2302 2303 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2304 peth = (struct ethhdr *)(skb->data + delta); 2305 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2306 } else { /* Its a SNAP */ 2307 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2308 /* EtherII and nuke the LLC */ 2309 pr_debug("ray_cs untranslate Bridge encap\n"); 2310 delta = RX_MAC_HEADER_LENGTH 2311 + sizeof(struct snaphdr_t) - ETH_HLEN; 2312 peth = (struct ethhdr *)(skb->data + delta); 2313 peth->h_proto = type; 2314 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2315 switch (ntohs(type)) { 2316 case ETH_P_IPX: 2317 case ETH_P_AARP: 2318 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2319 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2320 peth = (struct ethhdr *)(skb->data + delta); 2321 peth->h_proto = 2322 htons(len - RX_MAC_HEADER_LENGTH); 2323 break; 2324 default: 2325 pr_debug("ray_cs untranslate RFC default\n"); 2326 delta = RX_MAC_HEADER_LENGTH + 2327 sizeof(struct snaphdr_t) - ETH_HLEN; 2328 peth = (struct ethhdr *)(skb->data + delta); 2329 peth->h_proto = type; 2330 break; 2331 } 2332 } else { 2333 printk("ray_cs untranslate very confused by packet\n"); 2334 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2335 peth = (struct ethhdr *)(skb->data + delta); 2336 peth->h_proto = type; 2337 } 2338 } 2339 /* TBD reserve skb_reserve(skb, delta); */ 2340 skb_pull(skb, delta); 2341 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2342 skb->data); 2343 memcpy(peth->h_dest, destaddr, ADDRLEN); 2344 memcpy(peth->h_source, srcaddr, ADDRLEN); 2345 #if 0 2346 { 2347 int i; 2348 printk(KERN_DEBUG "skb->data after untranslate:"); 2349 for (i = 0; i < 64; i++) 2350 printk("%02x ", skb->data[i]); 2351 printk("\n"); 2352 } 2353 #endif 2354 } /* end untranslate */ 2355 2356 /*===========================================================================*/ 2357 /* Copy data from circular receive buffer to PC memory. 2358 * dest = destination address in PC memory 2359 * pkt_addr = source address in receive buffer 2360 * len = length of packet to copy 2361 */ 2362 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2363 int length) 2364 { 2365 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2366 if (wrap_bytes <= 0) { 2367 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2368 } else { /* Packet wrapped in circular buffer */ 2369 2370 memcpy_fromio(dest, local->rmem + pkt_addr, 2371 length - wrap_bytes); 2372 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2373 wrap_bytes); 2374 } 2375 return length; 2376 } 2377 2378 /*===========================================================================*/ 2379 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2380 { 2381 struct rcs __iomem *prcslink = prcs; 2382 int tmp = 17; 2383 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2384 2385 while (tmp--) { 2386 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2387 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2388 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2389 rcsindex); 2390 break; 2391 } 2392 prcslink = rcs_base(local) + rcsindex; 2393 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2394 } 2395 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2396 } 2397 2398 /*===========================================================================*/ 2399 static void authenticate(ray_dev_t *local) 2400 { 2401 struct pcmcia_device *link = local->finder; 2402 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2403 if (!(pcmcia_dev_present(link))) { 2404 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2405 return; 2406 } 2407 2408 del_timer(&local->timer); 2409 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2410 local->timer.function = join_net; 2411 } else { 2412 local->timer.function = authenticate_timeout; 2413 } 2414 local->timer.expires = jiffies + HZ * 2; 2415 add_timer(&local->timer); 2416 local->authentication_state = AWAITING_RESPONSE; 2417 } /* end authenticate */ 2418 2419 /*===========================================================================*/ 2420 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2421 unsigned int pkt_addr, int rx_len) 2422 { 2423 UCHAR buff[256]; 2424 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2425 2426 del_timer(&local->timer); 2427 2428 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2429 /* if we are trying to get authenticated */ 2430 if (local->sparm.b4.a_network_type == ADHOC) { 2431 pr_debug("ray_cs rx_auth var= %6ph\n", msg->var); 2432 if (msg->var[2] == 1) { 2433 pr_debug("ray_cs Sending authentication response.\n"); 2434 if (!build_auth_frame 2435 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2436 local->authentication_state = NEED_TO_AUTH; 2437 memcpy(local->auth_id, msg->mac.addr_2, 2438 ADDRLEN); 2439 } 2440 } 2441 } else { /* Infrastructure network */ 2442 2443 if (local->authentication_state == AWAITING_RESPONSE) { 2444 /* Verify authentication sequence #2 and success */ 2445 if (msg->var[2] == 2) { 2446 if ((msg->var[3] | msg->var[4]) == 0) { 2447 pr_debug("Authentication successful\n"); 2448 local->card_status = CARD_AUTH_COMPLETE; 2449 associate(local); 2450 local->authentication_state = 2451 AUTHENTICATED; 2452 } else { 2453 pr_debug("Authentication refused\n"); 2454 local->card_status = CARD_AUTH_REFUSED; 2455 join_net(&local->timer); 2456 local->authentication_state = 2457 UNAUTHENTICATED; 2458 } 2459 } 2460 } 2461 } 2462 2463 } /* end rx_authenticate */ 2464 2465 /*===========================================================================*/ 2466 static void associate(ray_dev_t *local) 2467 { 2468 struct ccs __iomem *pccs; 2469 struct pcmcia_device *link = local->finder; 2470 struct net_device *dev = link->priv; 2471 int ccsindex; 2472 if (!(pcmcia_dev_present(link))) { 2473 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2474 return; 2475 } 2476 /* If no tx buffers available, return */ 2477 if ((ccsindex = get_free_ccs(local)) < 0) { 2478 /* TBD should never be here but... what if we are? */ 2479 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2480 return; 2481 } 2482 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2483 pccs = ccs_base(local) + ccsindex; 2484 /* fill in the CCS */ 2485 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2486 /* Interrupt the firmware to process the command */ 2487 if (interrupt_ecf(local, ccsindex)) { 2488 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2489 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2490 2491 del_timer(&local->timer); 2492 local->timer.expires = jiffies + HZ * 2; 2493 local->timer.function = join_net; 2494 add_timer(&local->timer); 2495 local->card_status = CARD_ASSOC_FAILED; 2496 return; 2497 } 2498 if (!sniffer) 2499 netif_start_queue(dev); 2500 2501 } /* end associate */ 2502 2503 /*===========================================================================*/ 2504 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2505 unsigned int pkt_addr, int rx_len) 2506 { 2507 /* UCHAR buff[256]; 2508 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2509 */ 2510 pr_debug("Deauthentication frame received\n"); 2511 local->authentication_state = UNAUTHENTICATED; 2512 /* Need to reauthenticate or rejoin depending on reason code */ 2513 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2514 */ 2515 } 2516 2517 /*===========================================================================*/ 2518 static void clear_interrupt(ray_dev_t *local) 2519 { 2520 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2521 } 2522 2523 /*===========================================================================*/ 2524 #ifdef CONFIG_PROC_FS 2525 #define MAXDATA (PAGE_SIZE - 80) 2526 2527 static const char *card_status[] = { 2528 "Card inserted - uninitialized", /* 0 */ 2529 "Card not downloaded", /* 1 */ 2530 "Waiting for download parameters", /* 2 */ 2531 "Card doing acquisition", /* 3 */ 2532 "Acquisition complete", /* 4 */ 2533 "Authentication complete", /* 5 */ 2534 "Association complete", /* 6 */ 2535 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2536 "Card init error", /* 11 */ 2537 "Download parameters error", /* 12 */ 2538 "???", /* 13 */ 2539 "Acquisition failed", /* 14 */ 2540 "Authentication refused", /* 15 */ 2541 "Association failed" /* 16 */ 2542 }; 2543 2544 static const char *nettype[] = { "Adhoc", "Infra " }; 2545 static const char *framing[] = { "Encapsulation", "Translation" } 2546 2547 ; 2548 /*===========================================================================*/ 2549 static int ray_cs_proc_show(struct seq_file *m, void *v) 2550 { 2551 /* Print current values which are not available via other means 2552 * eg ifconfig 2553 */ 2554 int i; 2555 struct pcmcia_device *link; 2556 struct net_device *dev; 2557 ray_dev_t *local; 2558 UCHAR *p; 2559 struct freq_hop_element *pfh; 2560 UCHAR c[33]; 2561 2562 link = this_device; 2563 if (!link) 2564 return 0; 2565 dev = (struct net_device *)link->priv; 2566 if (!dev) 2567 return 0; 2568 local = netdev_priv(dev); 2569 if (!local) 2570 return 0; 2571 2572 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2573 seq_printf(m, "%s\n", rcsid); 2574 /* build 4 does not report version, and field is 0x55 after memtest */ 2575 seq_puts(m, "Firmware version = "); 2576 if (local->fw_ver == 0x55) 2577 seq_puts(m, "4 - Use dump_cis for more details\n"); 2578 else 2579 seq_printf(m, "%2d.%02d.%02d\n", 2580 local->fw_ver, local->fw_bld, local->fw_var); 2581 2582 for (i = 0; i < 32; i++) 2583 c[i] = local->sparm.b5.a_current_ess_id[i]; 2584 c[32] = 0; 2585 seq_printf(m, "%s network ESSID = \"%s\"\n", 2586 nettype[local->sparm.b5.a_network_type], c); 2587 2588 p = local->bss_id; 2589 seq_printf(m, "BSSID = %pM\n", p); 2590 2591 seq_printf(m, "Country code = %d\n", 2592 local->sparm.b5.a_curr_country_code); 2593 2594 i = local->card_status; 2595 if (i < 0) 2596 i = 10; 2597 if (i > 16) 2598 i = 10; 2599 seq_printf(m, "Card status = %s\n", card_status[i]); 2600 2601 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2602 2603 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2604 2605 if (local->beacon_rxed) { 2606 /* Pull some fields out of last beacon received */ 2607 seq_printf(m, "Beacon Interval = %d Kus\n", 2608 local->last_bcn.beacon_intvl[0] 2609 + 256 * local->last_bcn.beacon_intvl[1]); 2610 2611 p = local->last_bcn.elements; 2612 if (p[0] == C_ESSID_ELEMENT_ID) 2613 p += p[1] + 2; 2614 else { 2615 seq_printf(m, 2616 "Parse beacon failed at essid element id = %d\n", 2617 p[0]); 2618 return 0; 2619 } 2620 2621 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2622 seq_puts(m, "Supported rate codes = "); 2623 for (i = 2; i < p[1] + 2; i++) 2624 seq_printf(m, "0x%02x ", p[i]); 2625 seq_putc(m, '\n'); 2626 p += p[1] + 2; 2627 } else { 2628 seq_puts(m, "Parse beacon failed at rates element\n"); 2629 return 0; 2630 } 2631 2632 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2633 pfh = (struct freq_hop_element *)p; 2634 seq_printf(m, "Hop dwell = %d Kus\n", 2635 pfh->dwell_time[0] + 2636 256 * pfh->dwell_time[1]); 2637 seq_printf(m, "Hop set = %d\n", 2638 pfh->hop_set); 2639 seq_printf(m, "Hop pattern = %d\n", 2640 pfh->hop_pattern); 2641 seq_printf(m, "Hop index = %d\n", 2642 pfh->hop_index); 2643 p += p[1] + 2; 2644 } else { 2645 seq_puts(m, 2646 "Parse beacon failed at FH param element\n"); 2647 return 0; 2648 } 2649 } else { 2650 seq_puts(m, "No beacons received\n"); 2651 } 2652 return 0; 2653 } 2654 #endif 2655 /*===========================================================================*/ 2656 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2657 { 2658 int addr; 2659 struct ccs __iomem *pccs; 2660 struct tx_msg __iomem *ptx; 2661 int ccsindex; 2662 2663 /* If no tx buffers available, return */ 2664 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2665 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2666 return -1; 2667 } 2668 2669 pccs = ccs_base(local) + ccsindex; 2670 2671 /* Address in card space */ 2672 addr = TX_BUF_BASE + (ccsindex << 11); 2673 /* fill in the CCS */ 2674 writeb(CCS_TX_REQUEST, &pccs->cmd); 2675 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2676 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2677 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2678 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2679 pccs->var.tx_request.tx_data_length + 1); 2680 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2681 2682 ptx = local->sram + addr; 2683 /* fill in the mac header */ 2684 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2685 writeb(0, &ptx->mac.frame_ctl_2); 2686 2687 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2688 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2689 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2690 2691 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2692 memset_io(ptx->var, 0, 6); 2693 writeb(auth_type & 0xff, ptx->var + 2); 2694 2695 /* Interrupt the firmware to process the command */ 2696 if (interrupt_ecf(local, ccsindex)) { 2697 pr_debug( 2698 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2699 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2700 return -1; 2701 } 2702 return 0; 2703 } /* End build_auth_frame */ 2704 2705 /*===========================================================================*/ 2706 #ifdef CONFIG_PROC_FS 2707 static ssize_t ray_cs_essid_proc_write(struct file *file, 2708 const char __user *buffer, size_t count, loff_t *pos) 2709 { 2710 static char proc_essid[33]; 2711 unsigned int len = count; 2712 2713 if (len > 32) 2714 len = 32; 2715 memset(proc_essid, 0, 33); 2716 if (copy_from_user(proc_essid, buffer, len)) 2717 return -EFAULT; 2718 essid = proc_essid; 2719 return count; 2720 } 2721 2722 static const struct proc_ops ray_cs_essid_proc_ops = { 2723 .proc_write = ray_cs_essid_proc_write, 2724 .proc_lseek = noop_llseek, 2725 }; 2726 2727 static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2728 size_t count, loff_t *pos) 2729 { 2730 static char proc_number[10]; 2731 char *p; 2732 int nr, len; 2733 2734 if (!count) 2735 return 0; 2736 2737 if (count > 9) 2738 return -EINVAL; 2739 if (copy_from_user(proc_number, buffer, count)) 2740 return -EFAULT; 2741 p = proc_number; 2742 nr = 0; 2743 len = count; 2744 do { 2745 unsigned int c = *p - '0'; 2746 if (c > 9) 2747 return -EINVAL; 2748 nr = nr * 10 + c; 2749 p++; 2750 } while (--len); 2751 *(int *)pde_data(file_inode(file)) = nr; 2752 return count; 2753 } 2754 2755 static const struct proc_ops int_proc_ops = { 2756 .proc_write = int_proc_write, 2757 .proc_lseek = noop_llseek, 2758 }; 2759 #endif 2760 2761 static const struct pcmcia_device_id ray_ids[] = { 2762 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2763 PCMCIA_DEVICE_NULL, 2764 }; 2765 2766 MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2767 2768 static struct pcmcia_driver ray_driver = { 2769 .owner = THIS_MODULE, 2770 .name = "ray_cs", 2771 .probe = ray_probe, 2772 .remove = ray_detach, 2773 .id_table = ray_ids, 2774 .suspend = ray_suspend, 2775 .resume = ray_resume, 2776 }; 2777 2778 static int __init init_ray_cs(void) 2779 { 2780 int rc; 2781 2782 pr_debug("%s\n", rcsid); 2783 rc = pcmcia_register_driver(&ray_driver); 2784 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2785 rc); 2786 if (rc) 2787 return rc; 2788 2789 #ifdef CONFIG_PROC_FS 2790 proc_mkdir("driver/ray_cs", NULL); 2791 2792 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show); 2793 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops); 2794 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops, 2795 &net_type); 2796 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops, 2797 &translate); 2798 #endif 2799 translate = !!translate; 2800 return 0; 2801 } /* init_ray_cs */ 2802 2803 /*===========================================================================*/ 2804 2805 static void __exit exit_ray_cs(void) 2806 { 2807 pr_debug("ray_cs: cleanup_module\n"); 2808 2809 #ifdef CONFIG_PROC_FS 2810 remove_proc_subtree("driver/ray_cs", NULL); 2811 #endif 2812 2813 pcmcia_unregister_driver(&ray_driver); 2814 } /* exit_ray_cs */ 2815 2816 module_init(init_ray_cs); 2817 module_exit(exit_ray_cs); 2818 2819 /*===========================================================================*/ 2820