1 // SPDX-License-Identifier: GPL-2.0-only 2 /*============================================================================= 3 * 4 * A PCMCIA client driver for the Raylink wireless LAN card. 5 * The starting point for this module was the skeleton.c in the 6 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net 7 * 8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com) 9 * 10 * Changes: 11 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000 12 * - reorganize kmallocs in ray_attach, checking all for failure 13 * and releasing the previous allocations if one fails 14 * 15 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003 16 * - Audit copy_to_user in ioctl(SIOCGIWESSID) 17 * 18 =============================================================================*/ 19 20 #include <linux/module.h> 21 #include <linux/kernel.h> 22 #include <linux/proc_fs.h> 23 #include <linux/ptrace.h> 24 #include <linux/seq_file.h> 25 #include <linux/string.h> 26 #include <linux/timer.h> 27 #include <linux/init.h> 28 #include <linux/netdevice.h> 29 #include <linux/etherdevice.h> 30 #include <linux/if_arp.h> 31 #include <linux/ioport.h> 32 #include <linux/skbuff.h> 33 #include <linux/ieee80211.h> 34 35 #include <pcmcia/cistpl.h> 36 #include <pcmcia/cisreg.h> 37 #include <pcmcia/ds.h> 38 39 #include <linux/wireless.h> 40 #include <net/iw_handler.h> 41 42 #include <asm/io.h> 43 #include <asm/byteorder.h> 44 #include <linux/uaccess.h> 45 46 /* Warning : these stuff will slow down the driver... */ 47 #define WIRELESS_SPY /* Enable spying addresses */ 48 /* Definitions we need for spy */ 49 typedef struct iw_statistics iw_stats; 50 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */ 51 52 #include "rayctl.h" 53 #include "ray_cs.h" 54 55 56 /** Prototypes based on PCMCIA skeleton driver *******************************/ 57 static int ray_config(struct pcmcia_device *link); 58 static void ray_release(struct pcmcia_device *link); 59 static void ray_detach(struct pcmcia_device *p_dev); 60 61 /***** Prototypes indicated by device structure ******************************/ 62 static int ray_dev_close(struct net_device *dev); 63 static int ray_dev_config(struct net_device *dev, struct ifmap *map); 64 static struct net_device_stats *ray_get_stats(struct net_device *dev); 65 static int ray_dev_init(struct net_device *dev); 66 67 static int ray_open(struct net_device *dev); 68 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 69 struct net_device *dev); 70 static void set_multicast_list(struct net_device *dev); 71 static void ray_update_multi_list(struct net_device *dev, int all); 72 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 73 unsigned char *data, int len); 74 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 75 UCHAR msg_type, unsigned char *data); 76 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len); 77 static iw_stats *ray_get_wireless_stats(struct net_device *dev); 78 static const struct iw_handler_def ray_handler_def; 79 80 /***** Prototypes for raylink functions **************************************/ 81 static void authenticate(ray_dev_t *local); 82 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type); 83 static void authenticate_timeout(struct timer_list *t); 84 static int get_free_ccs(ray_dev_t *local); 85 static int get_free_tx_ccs(ray_dev_t *local); 86 static void init_startup_params(ray_dev_t *local); 87 static int parse_addr(char *in_str, UCHAR *out); 88 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type); 89 static int ray_init(struct net_device *dev); 90 static int interrupt_ecf(ray_dev_t *local, int ccs); 91 static void ray_reset(struct net_device *dev); 92 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len); 93 static void verify_dl_startup(struct timer_list *t); 94 95 /* Prototypes for interrpt time functions **********************************/ 96 static irqreturn_t ray_interrupt(int reg, void *dev_id); 97 static void clear_interrupt(ray_dev_t *local); 98 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 99 unsigned int pkt_addr, int rx_len); 100 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len); 101 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs); 102 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs); 103 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 104 unsigned int pkt_addr, int rx_len); 105 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 106 unsigned int pkt_addr, int rx_len); 107 static void associate(ray_dev_t *local); 108 109 /* Card command functions */ 110 static int dl_startup_params(struct net_device *dev); 111 static void join_net(struct timer_list *t); 112 static void start_net(struct timer_list *t); 113 114 /*===========================================================================*/ 115 /* Parameters that can be set with 'insmod' */ 116 117 /* ADHOC=0, Infrastructure=1 */ 118 static int net_type = ADHOC; 119 120 /* Hop dwell time in Kus (1024 us units defined by 802.11) */ 121 static int hop_dwell = 128; 122 123 /* Beacon period in Kus */ 124 static int beacon_period = 256; 125 126 /* power save mode (0 = off, 1 = save power) */ 127 static int psm; 128 129 /* String for network's Extended Service Set ID. 32 Characters max */ 130 static char *essid; 131 132 /* Default to encapsulation unless translation requested */ 133 static bool translate = true; 134 135 static int country = USA; 136 137 static int sniffer; 138 139 static int bc; 140 141 /* 48 bit physical card address if overriding card's real physical 142 * address is required. Since IEEE 802.11 addresses are 48 bits 143 * like ethernet, an int can't be used, so a string is used. To 144 * allow use of addresses starting with a decimal digit, the first 145 * character must be a letter and will be ignored. This letter is 146 * followed by up to 12 hex digits which are the address. If less 147 * than 12 digits are used, the address will be left filled with 0's. 148 * Note that bit 0 of the first byte is the broadcast bit, and evil 149 * things will happen if it is not 0 in a card address. 150 */ 151 static char *phy_addr = NULL; 152 153 static unsigned int ray_mem_speed = 500; 154 155 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */ 156 static struct pcmcia_device *this_device = NULL; 157 158 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>"); 159 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver"); 160 MODULE_LICENSE("GPL"); 161 162 module_param(net_type, int, 0); 163 module_param(hop_dwell, int, 0); 164 module_param(beacon_period, int, 0); 165 module_param(psm, int, 0); 166 module_param(essid, charp, 0); 167 module_param(translate, bool, 0); 168 module_param(country, int, 0); 169 module_param(sniffer, int, 0); 170 module_param(bc, int, 0); 171 module_param(phy_addr, charp, 0); 172 module_param(ray_mem_speed, int, 0); 173 174 static const UCHAR b5_default_startup_parms[] = { 175 0, 0, /* Adhoc station */ 176 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 177 0, 0, 0, 0, 0, 0, 0, 0, 178 0, 0, 0, 0, 0, 0, 0, 0, 179 0, 0, 0, 0, 0, 0, 0, 0, 180 1, 0, /* Active scan, CA Mode */ 181 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 182 0x7f, 0xff, /* Frag threshold */ 183 0x00, 0x80, /* Hop time 128 Kus */ 184 0x01, 0x00, /* Beacon period 256 Kus */ 185 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 186 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */ 187 0x7f, 0xff, /* RTS threshold */ 188 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */ 189 0x05, /* assoc resp timeout thresh */ 190 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */ 191 0, /* Promiscuous mode */ 192 0x0c, 0x0bd, /* Unique word */ 193 0x32, /* Slot time */ 194 0xff, 0xff, /* roam-low snr, low snr count */ 195 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 196 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */ 197 /* b4 - b5 differences start here */ 198 0x00, 0x3f, /* CW max */ 199 0x00, 0x0f, /* CW min */ 200 0x04, 0x08, /* Noise gain, limit offset */ 201 0x28, 0x28, /* det rssi, med busy offsets */ 202 7, /* det sync thresh */ 203 0, 2, 2, /* test mode, min, max */ 204 0, /* allow broadcast SSID probe resp */ 205 0, 0, /* privacy must start, can join */ 206 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */ 207 }; 208 209 static const UCHAR b4_default_startup_parms[] = { 210 0, 0, /* Adhoc station */ 211 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */ 212 0, 0, 0, 0, 0, 0, 0, 0, 213 0, 0, 0, 0, 0, 0, 0, 0, 214 0, 0, 0, 0, 0, 0, 0, 0, 215 1, 0, /* Active scan, CA Mode */ 216 0, 0, 0, 0, 0, 0, /* No default MAC addr */ 217 0x7f, 0xff, /* Frag threshold */ 218 0x02, 0x00, /* Hop time */ 219 0x00, 0x01, /* Beacon period */ 220 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */ 221 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */ 222 0x7f, 0xff, /* RTS threshold */ 223 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */ 224 0x05, /* assoc resp timeout thresh */ 225 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */ 226 0, /* Promiscuous mode */ 227 0x0c, 0x0bd, /* Unique word */ 228 0x4e, /* Slot time (TBD seems wrong) */ 229 0xff, 0xff, /* roam-low snr, low snr count */ 230 0x05, 0xff, /* Infra, adhoc missed bcn thresh */ 231 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */ 232 /* b4 - b5 differences start here */ 233 0x3f, 0x0f, /* CW max, min */ 234 0x04, 0x08, /* Noise gain, limit offset */ 235 0x28, 0x28, /* det rssi, med busy offsets */ 236 7, /* det sync thresh */ 237 0, 2, 2, /* test mode, min, max */ 238 0, /* rx/tx delay */ 239 0, 0, 0, 0, 0, 0, /* current BSS id */ 240 0 /* hop set */ 241 }; 242 243 /*===========================================================================*/ 244 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 }; 245 246 static const char hop_pattern_length[] = { 1, 247 USA_HOP_MOD, EUROPE_HOP_MOD, 248 JAPAN_HOP_MOD, KOREA_HOP_MOD, 249 SPAIN_HOP_MOD, FRANCE_HOP_MOD, 250 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD, 251 JAPAN_TEST_HOP_MOD 252 }; 253 254 static const char rcsid[] = 255 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>"; 256 257 static const struct net_device_ops ray_netdev_ops = { 258 .ndo_init = ray_dev_init, 259 .ndo_open = ray_open, 260 .ndo_stop = ray_dev_close, 261 .ndo_start_xmit = ray_dev_start_xmit, 262 .ndo_set_config = ray_dev_config, 263 .ndo_get_stats = ray_get_stats, 264 .ndo_set_rx_mode = set_multicast_list, 265 .ndo_set_mac_address = eth_mac_addr, 266 .ndo_validate_addr = eth_validate_addr, 267 }; 268 269 static int ray_probe(struct pcmcia_device *p_dev) 270 { 271 ray_dev_t *local; 272 struct net_device *dev; 273 int ret; 274 275 dev_dbg(&p_dev->dev, "ray_attach()\n"); 276 277 /* Allocate space for private device-specific data */ 278 dev = alloc_etherdev(sizeof(ray_dev_t)); 279 if (!dev) 280 return -ENOMEM; 281 282 local = netdev_priv(dev); 283 local->finder = p_dev; 284 285 /* The io structure describes IO port mapping. None used here */ 286 p_dev->resource[0]->end = 0; 287 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 288 289 /* General socket configuration */ 290 p_dev->config_flags |= CONF_ENABLE_IRQ; 291 p_dev->config_index = 1; 292 293 p_dev->priv = dev; 294 295 local->finder = p_dev; 296 local->card_status = CARD_INSERTED; 297 local->authentication_state = UNAUTHENTICATED; 298 local->num_multi = 0; 299 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n", 300 p_dev, dev, local, &ray_interrupt); 301 302 /* Raylink entries in the device structure */ 303 dev->netdev_ops = &ray_netdev_ops; 304 dev->wireless_handlers = &ray_handler_def; 305 #ifdef WIRELESS_SPY 306 local->wireless_data.spy_data = &local->spy_data; 307 dev->wireless_data = &local->wireless_data; 308 #endif /* WIRELESS_SPY */ 309 310 311 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n"); 312 netif_stop_queue(dev); 313 314 timer_setup(&local->timer, NULL, 0); 315 316 this_device = p_dev; 317 ret = ray_config(p_dev); 318 if (ret) 319 goto err_free_dev; 320 321 return 0; 322 323 err_free_dev: 324 free_netdev(dev); 325 return ret; 326 } 327 328 static void ray_detach(struct pcmcia_device *link) 329 { 330 struct net_device *dev; 331 332 dev_dbg(&link->dev, "ray_detach\n"); 333 334 this_device = NULL; 335 dev = link->priv; 336 337 ray_release(link); 338 339 if (link->priv) { 340 unregister_netdev(dev); 341 free_netdev(dev); 342 } 343 dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); 344 } /* ray_detach */ 345 346 #define MAX_TUPLE_SIZE 128 347 static int ray_config(struct pcmcia_device *link) 348 { 349 int ret = 0; 350 int i; 351 struct net_device *dev = (struct net_device *)link->priv; 352 ray_dev_t *local = netdev_priv(dev); 353 354 dev_dbg(&link->dev, "ray_config\n"); 355 356 /* Determine card type and firmware version */ 357 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n", 358 link->prod_id[0] ? link->prod_id[0] : " ", 359 link->prod_id[1] ? link->prod_id[1] : " ", 360 link->prod_id[2] ? link->prod_id[2] : " ", 361 link->prod_id[3] ? link->prod_id[3] : " "); 362 363 /* Now allocate an interrupt line. Note that this does not 364 actually assign a handler to the interrupt. 365 */ 366 ret = pcmcia_request_irq(link, ray_interrupt); 367 if (ret) 368 goto failed; 369 dev->irq = link->irq; 370 371 ret = pcmcia_enable_device(link); 372 if (ret) 373 goto failed; 374 375 /*** Set up 32k window for shared memory (transmit and control) ************/ 376 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 377 link->resource[2]->start = 0; 378 link->resource[2]->end = 0x8000; 379 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed); 380 if (ret) 381 goto failed; 382 ret = pcmcia_map_mem_page(link, link->resource[2], 0); 383 if (ret) 384 goto failed; 385 local->sram = ioremap(link->resource[2]->start, 386 resource_size(link->resource[2])); 387 if (!local->sram) 388 goto failed; 389 390 /*** Set up 16k window for shared memory (receive buffer) ***************/ 391 link->resource[3]->flags |= 392 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; 393 link->resource[3]->start = 0; 394 link->resource[3]->end = 0x4000; 395 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed); 396 if (ret) 397 goto failed; 398 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000); 399 if (ret) 400 goto failed; 401 local->rmem = ioremap(link->resource[3]->start, 402 resource_size(link->resource[3])); 403 if (!local->rmem) 404 goto failed; 405 406 /*** Set up window for attribute memory ***********************************/ 407 link->resource[4]->flags |= 408 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT; 409 link->resource[4]->start = 0; 410 link->resource[4]->end = 0x1000; 411 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed); 412 if (ret) 413 goto failed; 414 ret = pcmcia_map_mem_page(link, link->resource[4], 0); 415 if (ret) 416 goto failed; 417 local->amem = ioremap(link->resource[4]->start, 418 resource_size(link->resource[4])); 419 if (!local->amem) 420 goto failed; 421 422 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram); 423 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem); 424 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem); 425 if (ray_init(dev) < 0) { 426 ray_release(link); 427 return -ENODEV; 428 } 429 430 SET_NETDEV_DEV(dev, &link->dev); 431 i = register_netdev(dev); 432 if (i != 0) { 433 printk("ray_config register_netdev() failed\n"); 434 ray_release(link); 435 return i; 436 } 437 438 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", 439 dev->name, dev->irq, dev->dev_addr); 440 441 return 0; 442 443 failed: 444 ray_release(link); 445 return -ENODEV; 446 } /* ray_config */ 447 448 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev) 449 { 450 return dev->sram + CCS_BASE; 451 } 452 453 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev) 454 { 455 /* 456 * This looks nonsensical, since there is a separate 457 * RCS_BASE. But the difference between a "struct rcs" 458 * and a "struct ccs" ends up being in the _index_ off 459 * the base, so the base pointer is the same for both 460 * ccs/rcs. 461 */ 462 return dev->sram + CCS_BASE; 463 } 464 465 /*===========================================================================*/ 466 static int ray_init(struct net_device *dev) 467 { 468 int i; 469 struct ccs __iomem *pccs; 470 ray_dev_t *local = netdev_priv(dev); 471 struct pcmcia_device *link = local->finder; 472 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev); 473 if (!(pcmcia_dev_present(link))) { 474 dev_dbg(&link->dev, "ray_init - device not present\n"); 475 return -1; 476 } 477 478 local->net_type = net_type; 479 local->sta_type = TYPE_STA; 480 481 /* Copy the startup results to local memory */ 482 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE, 483 sizeof(struct startup_res_6)); 484 485 /* Check Power up test status and get mac address from card */ 486 if (local->startup_res.startup_word != 0x80) { 487 printk(KERN_INFO "ray_init ERROR card status = %2x\n", 488 local->startup_res.startup_word); 489 local->card_status = CARD_INIT_ERROR; 490 return -1; 491 } 492 493 local->fw_ver = local->startup_res.firmware_version[0]; 494 local->fw_bld = local->startup_res.firmware_version[1]; 495 local->fw_var = local->startup_res.firmware_version[2]; 496 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver, 497 local->fw_bld); 498 499 local->tib_length = 0x20; 500 if ((local->fw_ver == 5) && (local->fw_bld >= 30)) 501 local->tib_length = local->startup_res.tib_length; 502 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length); 503 /* Initialize CCS's to buffer free state */ 504 pccs = ccs_base(local); 505 for (i = 0; i < NUMBER_OF_CCS; i++) { 506 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 507 } 508 init_startup_params(local); 509 510 /* copy mac address to startup parameters */ 511 if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) { 512 memcpy(&local->sparm.b4.a_mac_addr, 513 &local->startup_res.station_addr, ADDRLEN); 514 } 515 516 clear_interrupt(local); /* Clear any interrupt from the card */ 517 local->card_status = CARD_AWAITING_PARAM; 518 dev_dbg(&link->dev, "ray_init ending\n"); 519 return 0; 520 } /* ray_init */ 521 522 /*===========================================================================*/ 523 /* Download startup parameters to the card and command it to read them */ 524 static int dl_startup_params(struct net_device *dev) 525 { 526 int ccsindex; 527 ray_dev_t *local = netdev_priv(dev); 528 struct ccs __iomem *pccs; 529 struct pcmcia_device *link = local->finder; 530 531 dev_dbg(&link->dev, "dl_startup_params entered\n"); 532 if (!(pcmcia_dev_present(link))) { 533 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n"); 534 return -1; 535 } 536 537 /* Copy parameters to host to ECF area */ 538 if (local->fw_ver == 0x55) 539 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4, 540 sizeof(struct b4_startup_params)); 541 else 542 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5, 543 sizeof(struct b5_startup_params)); 544 545 /* Fill in the CCS fields for the ECF */ 546 if ((ccsindex = get_free_ccs(local)) < 0) 547 return -1; 548 local->dl_param_ccs = ccsindex; 549 pccs = ccs_base(local) + ccsindex; 550 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd); 551 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n", 552 local->dl_param_ccs); 553 /* Interrupt the firmware to process the command */ 554 if (interrupt_ecf(local, ccsindex)) { 555 printk(KERN_INFO "ray dl_startup_params failed - " 556 "ECF not ready for intr\n"); 557 local->card_status = CARD_DL_PARAM_ERROR; 558 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 559 return -2; 560 } 561 local->card_status = CARD_DL_PARAM; 562 /* Start kernel timer to wait for dl startup to complete. */ 563 local->timer.expires = jiffies + HZ / 2; 564 local->timer.function = verify_dl_startup; 565 add_timer(&local->timer); 566 dev_dbg(&link->dev, 567 "ray_cs dl_startup_params started timer for verify_dl_startup\n"); 568 return 0; 569 } /* dl_startup_params */ 570 571 /*===========================================================================*/ 572 static void init_startup_params(ray_dev_t *local) 573 { 574 int i; 575 576 if (country > JAPAN_TEST) 577 country = USA; 578 else if (country < USA) 579 country = USA; 580 /* structure for hop time and beacon period is defined here using 581 * New 802.11D6.1 format. Card firmware is still using old format 582 * until version 6. 583 * Before After 584 * a_hop_time ms byte a_hop_time ms byte 585 * a_hop_time 2s byte a_hop_time ls byte 586 * a_hop_time ls byte a_beacon_period ms byte 587 * a_beacon_period a_beacon_period ls byte 588 * 589 * a_hop_time = uS a_hop_time = KuS 590 * a_beacon_period = hops a_beacon_period = KuS 591 *//* 64ms = 010000 */ 592 if (local->fw_ver == 0x55) { 593 memcpy(&local->sparm.b4, b4_default_startup_parms, 594 sizeof(struct b4_startup_params)); 595 /* Translate sane kus input values to old build 4/5 format */ 596 /* i = hop time in uS truncated to 3 bytes */ 597 i = (hop_dwell * 1024) & 0xffffff; 598 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff; 599 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff; 600 local->sparm.b4.a_beacon_period[0] = 0; 601 local->sparm.b4.a_beacon_period[1] = 602 ((beacon_period / hop_dwell) - 1) & 0xff; 603 local->sparm.b4.a_curr_country_code = country; 604 local->sparm.b4.a_hop_pattern_length = 605 hop_pattern_length[(int)country] - 1; 606 if (bc) { 607 local->sparm.b4.a_ack_timeout = 0x50; 608 local->sparm.b4.a_sifs = 0x3f; 609 } 610 } else { /* Version 5 uses real kus values */ 611 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms, 612 sizeof(struct b5_startup_params)); 613 614 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff; 615 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff; 616 local->sparm.b5.a_beacon_period[0] = 617 (beacon_period >> 8) & 0xff; 618 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff; 619 if (psm) 620 local->sparm.b5.a_power_mgt_state = 1; 621 local->sparm.b5.a_curr_country_code = country; 622 local->sparm.b5.a_hop_pattern_length = 623 hop_pattern_length[(int)country]; 624 } 625 626 local->sparm.b4.a_network_type = net_type & 0x01; 627 local->sparm.b4.a_acting_as_ap_status = TYPE_STA; 628 629 if (essid != NULL) 630 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE); 631 } /* init_startup_params */ 632 633 /*===========================================================================*/ 634 static void verify_dl_startup(struct timer_list *t) 635 { 636 ray_dev_t *local = from_timer(local, t, timer); 637 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs; 638 UCHAR status; 639 struct pcmcia_device *link = local->finder; 640 641 if (!(pcmcia_dev_present(link))) { 642 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n"); 643 return; 644 } 645 #if 0 646 { 647 int i; 648 printk(KERN_DEBUG 649 "verify_dl_startup parameters sent via ccs %d:\n", 650 local->dl_param_ccs); 651 for (i = 0; i < sizeof(struct b5_startup_params); i++) { 652 printk(" %2x", 653 (unsigned int)readb(local->sram + 654 HOST_TO_ECF_BASE + i)); 655 } 656 printk("\n"); 657 } 658 #endif 659 660 status = readb(&pccs->buffer_status); 661 if (status != CCS_BUFFER_FREE) { 662 printk(KERN_INFO 663 "Download startup params failed. Status = %d\n", 664 status); 665 local->card_status = CARD_DL_PARAM_ERROR; 666 return; 667 } 668 if (local->sparm.b4.a_network_type == ADHOC) 669 start_net(&local->timer); 670 else 671 join_net(&local->timer); 672 } /* end verify_dl_startup */ 673 674 /*===========================================================================*/ 675 /* Command card to start a network */ 676 static void start_net(struct timer_list *t) 677 { 678 ray_dev_t *local = from_timer(local, t, timer); 679 struct ccs __iomem *pccs; 680 int ccsindex; 681 struct pcmcia_device *link = local->finder; 682 if (!(pcmcia_dev_present(link))) { 683 dev_dbg(&link->dev, "ray_cs start_net - device not present\n"); 684 return; 685 } 686 /* Fill in the CCS fields for the ECF */ 687 if ((ccsindex = get_free_ccs(local)) < 0) 688 return; 689 pccs = ccs_base(local) + ccsindex; 690 writeb(CCS_START_NETWORK, &pccs->cmd); 691 writeb(0, &pccs->var.start_network.update_param); 692 /* Interrupt the firmware to process the command */ 693 if (interrupt_ecf(local, ccsindex)) { 694 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n"); 695 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 696 return; 697 } 698 local->card_status = CARD_DOING_ACQ; 699 } /* end start_net */ 700 701 /*===========================================================================*/ 702 /* Command card to join a network */ 703 static void join_net(struct timer_list *t) 704 { 705 ray_dev_t *local = from_timer(local, t, timer); 706 707 struct ccs __iomem *pccs; 708 int ccsindex; 709 struct pcmcia_device *link = local->finder; 710 711 if (!(pcmcia_dev_present(link))) { 712 dev_dbg(&link->dev, "ray_cs join_net - device not present\n"); 713 return; 714 } 715 /* Fill in the CCS fields for the ECF */ 716 if ((ccsindex = get_free_ccs(local)) < 0) 717 return; 718 pccs = ccs_base(local) + ccsindex; 719 writeb(CCS_JOIN_NETWORK, &pccs->cmd); 720 writeb(0, &pccs->var.join_network.update_param); 721 writeb(0, &pccs->var.join_network.net_initiated); 722 /* Interrupt the firmware to process the command */ 723 if (interrupt_ecf(local, ccsindex)) { 724 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n"); 725 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 726 return; 727 } 728 local->card_status = CARD_DOING_ACQ; 729 } 730 731 732 static void ray_release(struct pcmcia_device *link) 733 { 734 struct net_device *dev = link->priv; 735 ray_dev_t *local = netdev_priv(dev); 736 737 dev_dbg(&link->dev, "ray_release\n"); 738 739 del_timer_sync(&local->timer); 740 741 iounmap(local->sram); 742 iounmap(local->rmem); 743 iounmap(local->amem); 744 pcmcia_disable_device(link); 745 746 dev_dbg(&link->dev, "ray_release ending\n"); 747 } 748 749 static int ray_suspend(struct pcmcia_device *link) 750 { 751 struct net_device *dev = link->priv; 752 753 if (link->open) 754 netif_device_detach(dev); 755 756 return 0; 757 } 758 759 static int ray_resume(struct pcmcia_device *link) 760 { 761 struct net_device *dev = link->priv; 762 763 if (link->open) { 764 ray_reset(dev); 765 netif_device_attach(dev); 766 } 767 768 return 0; 769 } 770 771 /*===========================================================================*/ 772 static int ray_dev_init(struct net_device *dev) 773 { 774 #ifdef RAY_IMMEDIATE_INIT 775 int i; 776 #endif /* RAY_IMMEDIATE_INIT */ 777 ray_dev_t *local = netdev_priv(dev); 778 struct pcmcia_device *link = local->finder; 779 780 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev); 781 if (!(pcmcia_dev_present(link))) { 782 dev_dbg(&link->dev, "ray_dev_init - device not present\n"); 783 return -1; 784 } 785 #ifdef RAY_IMMEDIATE_INIT 786 /* Download startup parameters */ 787 if ((i = dl_startup_params(dev)) < 0) { 788 printk(KERN_INFO "ray_dev_init dl_startup_params failed - " 789 "returns 0x%x\n", i); 790 return -1; 791 } 792 #else /* RAY_IMMEDIATE_INIT */ 793 /* Postpone the card init so that we can still configure the card, 794 * for example using the Wireless Extensions. The init will happen 795 * in ray_open() - Jean II */ 796 dev_dbg(&link->dev, 797 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n", 798 local->card_status); 799 #endif /* RAY_IMMEDIATE_INIT */ 800 801 /* copy mac and broadcast addresses to linux device */ 802 eth_hw_addr_set(dev, local->sparm.b4.a_mac_addr); 803 eth_broadcast_addr(dev->broadcast); 804 805 dev_dbg(&link->dev, "ray_dev_init ending\n"); 806 return 0; 807 } 808 809 /*===========================================================================*/ 810 static int ray_dev_config(struct net_device *dev, struct ifmap *map) 811 { 812 ray_dev_t *local = netdev_priv(dev); 813 struct pcmcia_device *link = local->finder; 814 /* Dummy routine to satisfy device structure */ 815 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map); 816 if (!(pcmcia_dev_present(link))) { 817 dev_dbg(&link->dev, "ray_dev_config - device not present\n"); 818 return -1; 819 } 820 821 return 0; 822 } 823 824 /*===========================================================================*/ 825 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb, 826 struct net_device *dev) 827 { 828 ray_dev_t *local = netdev_priv(dev); 829 struct pcmcia_device *link = local->finder; 830 short length = skb->len; 831 832 if (!pcmcia_dev_present(link)) { 833 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n"); 834 dev_kfree_skb(skb); 835 return NETDEV_TX_OK; 836 } 837 838 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev); 839 if (local->authentication_state == NEED_TO_AUTH) { 840 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n"); 841 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) { 842 local->authentication_state = AUTHENTICATED; 843 netif_stop_queue(dev); 844 return NETDEV_TX_BUSY; 845 } 846 } 847 848 if (length < ETH_ZLEN) { 849 if (skb_padto(skb, ETH_ZLEN)) 850 return NETDEV_TX_OK; 851 length = ETH_ZLEN; 852 } 853 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) { 854 case XMIT_NO_CCS: 855 case XMIT_NEED_AUTH: 856 netif_stop_queue(dev); 857 return NETDEV_TX_BUSY; 858 case XMIT_NO_INTR: 859 case XMIT_MSG_BAD: 860 case XMIT_OK: 861 default: 862 dev_kfree_skb(skb); 863 } 864 865 return NETDEV_TX_OK; 866 } /* ray_dev_start_xmit */ 867 868 /*===========================================================================*/ 869 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, 870 UCHAR msg_type) 871 { 872 ray_dev_t *local = netdev_priv(dev); 873 struct ccs __iomem *pccs; 874 int ccsindex; 875 int offset; 876 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */ 877 short int addr; /* Address of xmit buffer in card space */ 878 879 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev); 880 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) { 881 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n", 882 len); 883 return XMIT_MSG_BAD; 884 } 885 switch (ccsindex = get_free_tx_ccs(local)) { 886 case ECCSBUSY: 887 pr_debug("ray_hw_xmit tx_ccs table busy\n"); 888 fallthrough; 889 case ECCSFULL: 890 pr_debug("ray_hw_xmit No free tx ccs\n"); 891 fallthrough; 892 case ECARDGONE: 893 netif_stop_queue(dev); 894 return XMIT_NO_CCS; 895 default: 896 break; 897 } 898 addr = TX_BUF_BASE + (ccsindex << 11); 899 900 if (msg_type == DATA_TYPE) { 901 local->stats.tx_bytes += len; 902 local->stats.tx_packets++; 903 } 904 905 ptx = local->sram + addr; 906 907 ray_build_header(local, ptx, msg_type, data); 908 if (translate) { 909 offset = translate_frame(local, ptx, data, len); 910 } else { /* Encapsulate frame */ 911 /* TBD TIB length will move address of ptx->var */ 912 memcpy_toio(&ptx->var, data, len); 913 offset = 0; 914 } 915 916 /* fill in the CCS */ 917 pccs = ccs_base(local) + ccsindex; 918 len += TX_HEADER_LENGTH + offset; 919 writeb(CCS_TX_REQUEST, &pccs->cmd); 920 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]); 921 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]); 922 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]); 923 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]); 924 /* TBD still need psm_cam? */ 925 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode); 926 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate); 927 writeb(0, &pccs->var.tx_request.antenna); 928 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n", 929 local->net_default_tx_rate); 930 931 /* Interrupt the firmware to process the command */ 932 if (interrupt_ecf(local, ccsindex)) { 933 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n"); 934 /* TBD very inefficient to copy packet to buffer, and then not 935 send it, but the alternative is to queue the messages and that 936 won't be done for a while. Maybe set tbusy until a CCS is free? 937 */ 938 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 939 return XMIT_NO_INTR; 940 } 941 return XMIT_OK; 942 } /* end ray_hw_xmit */ 943 944 /*===========================================================================*/ 945 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, 946 unsigned char *data, int len) 947 { 948 __be16 proto = ((struct ethhdr *)data)->h_proto; 949 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */ 950 pr_debug("ray_cs translate_frame DIX II\n"); 951 /* Copy LLC header to card buffer */ 952 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc)); 953 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc), 954 (UCHAR *) &proto, 2); 955 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { 956 /* This is the selective translation table, only 2 entries */ 957 writeb(0xf8, 958 &((struct snaphdr_t __iomem *)ptx->var)->org[2]); 959 } 960 /* Copy body of ethernet packet without ethernet header */ 961 memcpy_toio((void __iomem *)&ptx->var + 962 sizeof(struct snaphdr_t), data + ETH_HLEN, 963 len - ETH_HLEN); 964 return (int)sizeof(struct snaphdr_t) - ETH_HLEN; 965 } else { /* already 802 type, and proto is length */ 966 pr_debug("ray_cs translate_frame 802\n"); 967 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */ 968 pr_debug("ray_cs translate_frame evil IPX\n"); 969 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 970 return 0 - ETH_HLEN; 971 } 972 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN); 973 return 0 - ETH_HLEN; 974 } 975 /* TBD do other frame types */ 976 } /* end translate_frame */ 977 978 /*===========================================================================*/ 979 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, 980 UCHAR msg_type, unsigned char *data) 981 { 982 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1); 983 /*** IEEE 802.11 Address field assignments ************* 984 TODS FROMDS addr_1 addr_2 addr_3 addr_4 985 Adhoc 0 0 dest src (terminal) BSSID N/A 986 AP to Terminal 0 1 dest AP(BSSID) source N/A 987 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A 988 AP to AP 1 1 dest AP src AP dest source 989 *******************************************************/ 990 if (local->net_type == ADHOC) { 991 writeb(0, &ptx->mac.frame_ctl_2); 992 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 993 ADDRLEN); 994 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, 995 ADDRLEN); 996 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 997 } else { /* infrastructure */ 998 999 if (local->sparm.b4.a_acting_as_ap_status) { 1000 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2); 1001 memcpy_toio(ptx->mac.addr_1, 1002 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1003 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6); 1004 memcpy_toio(ptx->mac.addr_3, 1005 ((struct ethhdr *)data)->h_source, ADDRLEN); 1006 } else { /* Terminal */ 1007 1008 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2); 1009 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN); 1010 memcpy_toio(ptx->mac.addr_2, 1011 ((struct ethhdr *)data)->h_source, ADDRLEN); 1012 memcpy_toio(ptx->mac.addr_3, 1013 ((struct ethhdr *)data)->h_dest, ADDRLEN); 1014 } 1015 } 1016 } /* end encapsulate_frame */ 1017 1018 /*====================================================================*/ 1019 1020 /*------------------------------------------------------------------*/ 1021 /* 1022 * Wireless Handler : get protocol name 1023 */ 1024 static int ray_get_name(struct net_device *dev, struct iw_request_info *info, 1025 union iwreq_data *wrqu, char *extra) 1026 { 1027 strcpy(wrqu->name, "IEEE 802.11-FH"); 1028 return 0; 1029 } 1030 1031 /*------------------------------------------------------------------*/ 1032 /* 1033 * Wireless Handler : set frequency 1034 */ 1035 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info, 1036 union iwreq_data *wrqu, char *extra) 1037 { 1038 ray_dev_t *local = netdev_priv(dev); 1039 int err = -EINPROGRESS; /* Call commit handler */ 1040 1041 /* Reject if card is already initialised */ 1042 if (local->card_status != CARD_AWAITING_PARAM) 1043 return -EBUSY; 1044 1045 /* Setting by channel number */ 1046 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0)) 1047 err = -EOPNOTSUPP; 1048 else 1049 local->sparm.b5.a_hop_pattern = wrqu->freq.m; 1050 1051 return err; 1052 } 1053 1054 /*------------------------------------------------------------------*/ 1055 /* 1056 * Wireless Handler : get frequency 1057 */ 1058 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info, 1059 union iwreq_data *wrqu, char *extra) 1060 { 1061 ray_dev_t *local = netdev_priv(dev); 1062 1063 wrqu->freq.m = local->sparm.b5.a_hop_pattern; 1064 wrqu->freq.e = 0; 1065 return 0; 1066 } 1067 1068 /*------------------------------------------------------------------*/ 1069 /* 1070 * Wireless Handler : set ESSID 1071 */ 1072 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info, 1073 union iwreq_data *wrqu, char *extra) 1074 { 1075 ray_dev_t *local = netdev_priv(dev); 1076 1077 /* Reject if card is already initialised */ 1078 if (local->card_status != CARD_AWAITING_PARAM) 1079 return -EBUSY; 1080 1081 /* Check if we asked for `any' */ 1082 if (wrqu->essid.flags == 0) 1083 /* Corey : can you do that ? */ 1084 return -EOPNOTSUPP; 1085 1086 /* Check the size of the string */ 1087 if (wrqu->essid.length > IW_ESSID_MAX_SIZE) 1088 return -E2BIG; 1089 1090 /* Set the ESSID in the card */ 1091 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE); 1092 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length); 1093 1094 return -EINPROGRESS; /* Call commit handler */ 1095 } 1096 1097 /*------------------------------------------------------------------*/ 1098 /* 1099 * Wireless Handler : get ESSID 1100 */ 1101 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info, 1102 union iwreq_data *wrqu, char *extra) 1103 { 1104 ray_dev_t *local = netdev_priv(dev); 1105 UCHAR tmp[IW_ESSID_MAX_SIZE + 1]; 1106 1107 /* Get the essid that was set */ 1108 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1109 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE); 1110 tmp[IW_ESSID_MAX_SIZE] = '\0'; 1111 1112 /* Push it out ! */ 1113 wrqu->essid.length = strlen(tmp); 1114 wrqu->essid.flags = 1; /* active */ 1115 1116 return 0; 1117 } 1118 1119 /*------------------------------------------------------------------*/ 1120 /* 1121 * Wireless Handler : get AP address 1122 */ 1123 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info, 1124 union iwreq_data *wrqu, char *extra) 1125 { 1126 ray_dev_t *local = netdev_priv(dev); 1127 1128 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN); 1129 wrqu->ap_addr.sa_family = ARPHRD_ETHER; 1130 1131 return 0; 1132 } 1133 1134 /*------------------------------------------------------------------*/ 1135 /* 1136 * Wireless Handler : set Bit-Rate 1137 */ 1138 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info, 1139 union iwreq_data *wrqu, char *extra) 1140 { 1141 ray_dev_t *local = netdev_priv(dev); 1142 1143 /* Reject if card is already initialised */ 1144 if (local->card_status != CARD_AWAITING_PARAM) 1145 return -EBUSY; 1146 1147 /* Check if rate is in range */ 1148 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000)) 1149 return -EINVAL; 1150 1151 /* Hack for 1.5 Mb/s instead of 2 Mb/s */ 1152 if ((local->fw_ver == 0x55) && /* Please check */ 1153 (wrqu->bitrate.value == 2000000)) 1154 local->net_default_tx_rate = 3; 1155 else 1156 local->net_default_tx_rate = wrqu->bitrate.value / 500000; 1157 1158 return 0; 1159 } 1160 1161 /*------------------------------------------------------------------*/ 1162 /* 1163 * Wireless Handler : get Bit-Rate 1164 */ 1165 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info, 1166 union iwreq_data *wrqu, char *extra) 1167 { 1168 ray_dev_t *local = netdev_priv(dev); 1169 1170 if (local->net_default_tx_rate == 3) 1171 wrqu->bitrate.value = 2000000; /* Hum... */ 1172 else 1173 wrqu->bitrate.value = local->net_default_tx_rate * 500000; 1174 wrqu->bitrate.fixed = 0; /* We are in auto mode */ 1175 1176 return 0; 1177 } 1178 1179 /*------------------------------------------------------------------*/ 1180 /* 1181 * Wireless Handler : set RTS threshold 1182 */ 1183 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info, 1184 union iwreq_data *wrqu, char *extra) 1185 { 1186 ray_dev_t *local = netdev_priv(dev); 1187 int rthr = wrqu->rts.value; 1188 1189 /* Reject if card is already initialised */ 1190 if (local->card_status != CARD_AWAITING_PARAM) 1191 return -EBUSY; 1192 1193 /* if(wrq->u.rts.fixed == 0) we should complain */ 1194 if (wrqu->rts.disabled) 1195 rthr = 32767; 1196 else { 1197 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */ 1198 return -EINVAL; 1199 } 1200 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF; 1201 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF; 1202 1203 return -EINPROGRESS; /* Call commit handler */ 1204 } 1205 1206 /*------------------------------------------------------------------*/ 1207 /* 1208 * Wireless Handler : get RTS threshold 1209 */ 1210 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info, 1211 union iwreq_data *wrqu, char *extra) 1212 { 1213 ray_dev_t *local = netdev_priv(dev); 1214 1215 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8) 1216 + local->sparm.b5.a_rts_threshold[1]; 1217 wrqu->rts.disabled = (wrqu->rts.value == 32767); 1218 wrqu->rts.fixed = 1; 1219 1220 return 0; 1221 } 1222 1223 /*------------------------------------------------------------------*/ 1224 /* 1225 * Wireless Handler : set Fragmentation threshold 1226 */ 1227 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info, 1228 union iwreq_data *wrqu, char *extra) 1229 { 1230 ray_dev_t *local = netdev_priv(dev); 1231 int fthr = wrqu->frag.value; 1232 1233 /* Reject if card is already initialised */ 1234 if (local->card_status != CARD_AWAITING_PARAM) 1235 return -EBUSY; 1236 1237 /* if(wrq->u.frag.fixed == 0) should complain */ 1238 if (wrqu->frag.disabled) 1239 fthr = 32767; 1240 else { 1241 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */ 1242 return -EINVAL; 1243 } 1244 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF; 1245 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF; 1246 1247 return -EINPROGRESS; /* Call commit handler */ 1248 } 1249 1250 /*------------------------------------------------------------------*/ 1251 /* 1252 * Wireless Handler : get Fragmentation threshold 1253 */ 1254 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info, 1255 union iwreq_data *wrqu, char *extra) 1256 { 1257 ray_dev_t *local = netdev_priv(dev); 1258 1259 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8) 1260 + local->sparm.b5.a_frag_threshold[1]; 1261 wrqu->frag.disabled = (wrqu->frag.value == 32767); 1262 wrqu->frag.fixed = 1; 1263 1264 return 0; 1265 } 1266 1267 /*------------------------------------------------------------------*/ 1268 /* 1269 * Wireless Handler : set Mode of Operation 1270 */ 1271 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info, 1272 union iwreq_data *wrqu, char *extra) 1273 { 1274 ray_dev_t *local = netdev_priv(dev); 1275 int err = -EINPROGRESS; /* Call commit handler */ 1276 char card_mode = 1; 1277 1278 /* Reject if card is already initialised */ 1279 if (local->card_status != CARD_AWAITING_PARAM) 1280 return -EBUSY; 1281 1282 switch (wrqu->mode) { 1283 case IW_MODE_ADHOC: 1284 card_mode = 0; 1285 fallthrough; 1286 case IW_MODE_INFRA: 1287 local->sparm.b5.a_network_type = card_mode; 1288 break; 1289 default: 1290 err = -EINVAL; 1291 } 1292 1293 return err; 1294 } 1295 1296 /*------------------------------------------------------------------*/ 1297 /* 1298 * Wireless Handler : get Mode of Operation 1299 */ 1300 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info, 1301 union iwreq_data *wrqu, char *extra) 1302 { 1303 ray_dev_t *local = netdev_priv(dev); 1304 1305 if (local->sparm.b5.a_network_type) 1306 wrqu->mode = IW_MODE_INFRA; 1307 else 1308 wrqu->mode = IW_MODE_ADHOC; 1309 1310 return 0; 1311 } 1312 1313 /*------------------------------------------------------------------*/ 1314 /* 1315 * Wireless Handler : get range info 1316 */ 1317 static int ray_get_range(struct net_device *dev, struct iw_request_info *info, 1318 union iwreq_data *wrqu, char *extra) 1319 { 1320 struct iw_range *range = (struct iw_range *)extra; 1321 1322 memset(range, 0, sizeof(struct iw_range)); 1323 1324 /* Set the length (very important for backward compatibility) */ 1325 wrqu->data.length = sizeof(struct iw_range); 1326 1327 /* Set the Wireless Extension versions */ 1328 range->we_version_compiled = WIRELESS_EXT; 1329 range->we_version_source = 9; 1330 1331 /* Set information in the range struct */ 1332 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */ 1333 range->num_channels = hop_pattern_length[(int)country]; 1334 range->num_frequency = 0; 1335 range->max_qual.qual = 0; 1336 range->max_qual.level = 255; /* What's the correct value ? */ 1337 range->max_qual.noise = 255; /* Idem */ 1338 range->num_bitrates = 2; 1339 range->bitrate[0] = 1000000; /* 1 Mb/s */ 1340 range->bitrate[1] = 2000000; /* 2 Mb/s */ 1341 return 0; 1342 } 1343 1344 /*------------------------------------------------------------------*/ 1345 /* 1346 * Wireless Private Handler : set framing mode 1347 */ 1348 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info, 1349 union iwreq_data *wrqu, char *extra) 1350 { 1351 translate = !!*(extra); /* Set framing mode */ 1352 1353 return 0; 1354 } 1355 1356 /*------------------------------------------------------------------*/ 1357 /* 1358 * Wireless Private Handler : get framing mode 1359 */ 1360 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info, 1361 union iwreq_data *wrqu, char *extra) 1362 { 1363 *(extra) = translate; 1364 1365 return 0; 1366 } 1367 1368 /*------------------------------------------------------------------*/ 1369 /* 1370 * Wireless Private Handler : get country 1371 */ 1372 static int ray_get_country(struct net_device *dev, struct iw_request_info *info, 1373 union iwreq_data *wrqu, char *extra) 1374 { 1375 *(extra) = country; 1376 1377 return 0; 1378 } 1379 1380 /*------------------------------------------------------------------*/ 1381 /* 1382 * Commit handler : called after a bunch of SET operations 1383 */ 1384 static int ray_commit(struct net_device *dev, struct iw_request_info *info, 1385 union iwreq_data *wrqu, char *extra) 1386 { 1387 return 0; 1388 } 1389 1390 /*------------------------------------------------------------------*/ 1391 /* 1392 * Stats handler : return Wireless Stats 1393 */ 1394 static iw_stats *ray_get_wireless_stats(struct net_device *dev) 1395 { 1396 ray_dev_t *local = netdev_priv(dev); 1397 struct pcmcia_device *link = local->finder; 1398 struct status __iomem *p = local->sram + STATUS_BASE; 1399 1400 local->wstats.status = local->card_status; 1401 #ifdef WIRELESS_SPY 1402 if ((local->spy_data.spy_number > 0) 1403 && (local->sparm.b5.a_network_type == 0)) { 1404 /* Get it from the first node in spy list */ 1405 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual; 1406 local->wstats.qual.level = local->spy_data.spy_stat[0].level; 1407 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise; 1408 local->wstats.qual.updated = 1409 local->spy_data.spy_stat[0].updated; 1410 } 1411 #endif /* WIRELESS_SPY */ 1412 1413 if (pcmcia_dev_present(link)) { 1414 local->wstats.qual.noise = readb(&p->rxnoise); 1415 local->wstats.qual.updated |= 4; 1416 } 1417 1418 return &local->wstats; 1419 } /* end ray_get_wireless_stats */ 1420 1421 /*------------------------------------------------------------------*/ 1422 /* 1423 * Structures to export the Wireless Handlers 1424 */ 1425 1426 static const iw_handler ray_handler[] = { 1427 IW_HANDLER(SIOCSIWCOMMIT, ray_commit), 1428 IW_HANDLER(SIOCGIWNAME, ray_get_name), 1429 IW_HANDLER(SIOCSIWFREQ, ray_set_freq), 1430 IW_HANDLER(SIOCGIWFREQ, ray_get_freq), 1431 IW_HANDLER(SIOCSIWMODE, ray_set_mode), 1432 IW_HANDLER(SIOCGIWMODE, ray_get_mode), 1433 IW_HANDLER(SIOCGIWRANGE, ray_get_range), 1434 #ifdef WIRELESS_SPY 1435 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), 1436 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), 1437 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), 1438 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), 1439 #endif /* WIRELESS_SPY */ 1440 IW_HANDLER(SIOCGIWAP, ray_get_wap), 1441 IW_HANDLER(SIOCSIWESSID, ray_set_essid), 1442 IW_HANDLER(SIOCGIWESSID, ray_get_essid), 1443 IW_HANDLER(SIOCSIWRATE, ray_set_rate), 1444 IW_HANDLER(SIOCGIWRATE, ray_get_rate), 1445 IW_HANDLER(SIOCSIWRTS, ray_set_rts), 1446 IW_HANDLER(SIOCGIWRTS, ray_get_rts), 1447 IW_HANDLER(SIOCSIWFRAG, ray_set_frag), 1448 IW_HANDLER(SIOCGIWFRAG, ray_get_frag), 1449 }; 1450 1451 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */ 1452 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */ 1453 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */ 1454 1455 static const iw_handler ray_private_handler[] = { 1456 [0] = ray_set_framing, 1457 [1] = ray_get_framing, 1458 [3] = ray_get_country, 1459 }; 1460 1461 static const struct iw_priv_args ray_private_args[] = { 1462 /* cmd, set_args, get_args, name */ 1463 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, 1464 "set_framing"}, 1465 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1466 "get_framing"}, 1467 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 1468 "get_country"}, 1469 }; 1470 1471 static const struct iw_handler_def ray_handler_def = { 1472 .num_standard = ARRAY_SIZE(ray_handler), 1473 .num_private = ARRAY_SIZE(ray_private_handler), 1474 .num_private_args = ARRAY_SIZE(ray_private_args), 1475 .standard = ray_handler, 1476 .private = ray_private_handler, 1477 .private_args = ray_private_args, 1478 .get_wireless_stats = ray_get_wireless_stats, 1479 }; 1480 1481 /*===========================================================================*/ 1482 static int ray_open(struct net_device *dev) 1483 { 1484 ray_dev_t *local = netdev_priv(dev); 1485 struct pcmcia_device *link; 1486 link = local->finder; 1487 1488 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name); 1489 1490 if (link->open == 0) 1491 local->num_multi = 0; 1492 link->open++; 1493 1494 /* If the card is not started, time to start it ! - Jean II */ 1495 if (local->card_status == CARD_AWAITING_PARAM) { 1496 int i; 1497 1498 dev_dbg(&link->dev, "ray_open: doing init now !\n"); 1499 1500 /* Download startup parameters */ 1501 if ((i = dl_startup_params(dev)) < 0) { 1502 printk(KERN_INFO 1503 "ray_dev_init dl_startup_params failed - " 1504 "returns 0x%x\n", i); 1505 return -1; 1506 } 1507 } 1508 1509 if (sniffer) 1510 netif_stop_queue(dev); 1511 else 1512 netif_start_queue(dev); 1513 1514 dev_dbg(&link->dev, "ray_open ending\n"); 1515 return 0; 1516 } /* end ray_open */ 1517 1518 /*===========================================================================*/ 1519 static int ray_dev_close(struct net_device *dev) 1520 { 1521 ray_dev_t *local = netdev_priv(dev); 1522 struct pcmcia_device *link; 1523 link = local->finder; 1524 1525 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name); 1526 1527 link->open--; 1528 netif_stop_queue(dev); 1529 1530 /* In here, we should stop the hardware (stop card from beeing active) 1531 * and set local->card_status to CARD_AWAITING_PARAM, so that while the 1532 * card is closed we can chage its configuration. 1533 * Probably also need a COR reset to get sane state - Jean II */ 1534 1535 return 0; 1536 } /* end ray_dev_close */ 1537 1538 /*===========================================================================*/ 1539 static void ray_reset(struct net_device *dev) 1540 { 1541 pr_debug("ray_reset entered\n"); 1542 } 1543 1544 /*===========================================================================*/ 1545 /* Cause a firmware interrupt if it is ready for one */ 1546 /* Return nonzero if not ready */ 1547 static int interrupt_ecf(ray_dev_t *local, int ccs) 1548 { 1549 int i = 50; 1550 struct pcmcia_device *link = local->finder; 1551 1552 if (!(pcmcia_dev_present(link))) { 1553 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n"); 1554 return -1; 1555 } 1556 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs); 1557 1558 while (i && 1559 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & 1560 ECF_INTR_SET)) 1561 i--; 1562 if (i == 0) { 1563 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n"); 1564 return -1; 1565 } 1566 /* Fill the mailbox, then kick the card */ 1567 writeb(ccs, local->sram + SCB_BASE); 1568 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET); 1569 return 0; 1570 } /* interrupt_ecf */ 1571 1572 /*===========================================================================*/ 1573 /* Get next free transmit CCS */ 1574 /* Return - index of current tx ccs */ 1575 static int get_free_tx_ccs(ray_dev_t *local) 1576 { 1577 int i; 1578 struct ccs __iomem *pccs = ccs_base(local); 1579 struct pcmcia_device *link = local->finder; 1580 1581 if (!(pcmcia_dev_present(link))) { 1582 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n"); 1583 return ECARDGONE; 1584 } 1585 1586 if (test_and_set_bit(0, &local->tx_ccs_lock)) { 1587 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n"); 1588 return ECCSBUSY; 1589 } 1590 1591 for (i = 0; i < NUMBER_OF_TX_CCS; i++) { 1592 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1593 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1594 writeb(CCS_END_LIST, &(pccs + i)->link); 1595 local->tx_ccs_lock = 0; 1596 return i; 1597 } 1598 } 1599 local->tx_ccs_lock = 0; 1600 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n"); 1601 return ECCSFULL; 1602 } /* get_free_tx_ccs */ 1603 1604 /*===========================================================================*/ 1605 /* Get next free CCS */ 1606 /* Return - index of current ccs */ 1607 static int get_free_ccs(ray_dev_t *local) 1608 { 1609 int i; 1610 struct ccs __iomem *pccs = ccs_base(local); 1611 struct pcmcia_device *link = local->finder; 1612 1613 if (!(pcmcia_dev_present(link))) { 1614 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n"); 1615 return ECARDGONE; 1616 } 1617 if (test_and_set_bit(0, &local->ccs_lock)) { 1618 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n"); 1619 return ECCSBUSY; 1620 } 1621 1622 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) { 1623 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) { 1624 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status); 1625 writeb(CCS_END_LIST, &(pccs + i)->link); 1626 local->ccs_lock = 0; 1627 return i; 1628 } 1629 } 1630 local->ccs_lock = 0; 1631 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n"); 1632 return ECCSFULL; 1633 } /* get_free_ccs */ 1634 1635 /*===========================================================================*/ 1636 static void authenticate_timeout(struct timer_list *t) 1637 { 1638 ray_dev_t *local = from_timer(local, t, timer); 1639 del_timer(&local->timer); 1640 printk(KERN_INFO "ray_cs Authentication with access point failed" 1641 " - timeout\n"); 1642 join_net(&local->timer); 1643 } 1644 1645 /*===========================================================================*/ 1646 static int parse_addr(char *in_str, UCHAR *out) 1647 { 1648 int i, k; 1649 int len; 1650 1651 if (in_str == NULL) 1652 return 0; 1653 len = strnlen(in_str, ADDRLEN * 2 + 1) - 1; 1654 if (len < 1) 1655 return 0; 1656 memset(out, 0, ADDRLEN); 1657 1658 i = 5; 1659 1660 while (len > 0) { 1661 if ((k = hex_to_bin(in_str[len--])) != -1) 1662 out[i] = k; 1663 else 1664 return 0; 1665 1666 if (len == 0) 1667 break; 1668 if ((k = hex_to_bin(in_str[len--])) != -1) 1669 out[i] += k << 4; 1670 else 1671 return 0; 1672 if (!i--) 1673 break; 1674 } 1675 return 1; 1676 } 1677 1678 /*===========================================================================*/ 1679 static struct net_device_stats *ray_get_stats(struct net_device *dev) 1680 { 1681 ray_dev_t *local = netdev_priv(dev); 1682 struct pcmcia_device *link = local->finder; 1683 struct status __iomem *p = local->sram + STATUS_BASE; 1684 if (!(pcmcia_dev_present(link))) { 1685 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n"); 1686 return &local->stats; 1687 } 1688 if (readb(&p->mrx_overflow_for_host)) { 1689 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow)); 1690 writeb(0, &p->mrx_overflow); 1691 writeb(0, &p->mrx_overflow_for_host); 1692 } 1693 if (readb(&p->mrx_checksum_error_for_host)) { 1694 local->stats.rx_crc_errors += 1695 swab16(readw(&p->mrx_checksum_error)); 1696 writeb(0, &p->mrx_checksum_error); 1697 writeb(0, &p->mrx_checksum_error_for_host); 1698 } 1699 if (readb(&p->rx_hec_error_for_host)) { 1700 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error)); 1701 writeb(0, &p->rx_hec_error); 1702 writeb(0, &p->rx_hec_error_for_host); 1703 } 1704 return &local->stats; 1705 } 1706 1707 /*===========================================================================*/ 1708 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, 1709 int len) 1710 { 1711 ray_dev_t *local = netdev_priv(dev); 1712 struct pcmcia_device *link = local->finder; 1713 int ccsindex; 1714 int i; 1715 struct ccs __iomem *pccs; 1716 1717 if (!(pcmcia_dev_present(link))) { 1718 dev_dbg(&link->dev, "ray_update_parm - device not present\n"); 1719 return; 1720 } 1721 1722 if ((ccsindex = get_free_ccs(local)) < 0) { 1723 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n"); 1724 return; 1725 } 1726 pccs = ccs_base(local) + ccsindex; 1727 writeb(CCS_UPDATE_PARAMS, &pccs->cmd); 1728 writeb(objid, &pccs->var.update_param.object_id); 1729 writeb(1, &pccs->var.update_param.number_objects); 1730 writeb(0, &pccs->var.update_param.failure_cause); 1731 for (i = 0; i < len; i++) { 1732 writeb(value[i], local->sram + HOST_TO_ECF_BASE); 1733 } 1734 /* Interrupt the firmware to process the command */ 1735 if (interrupt_ecf(local, ccsindex)) { 1736 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 1737 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1738 } 1739 } 1740 1741 /*===========================================================================*/ 1742 static void ray_update_multi_list(struct net_device *dev, int all) 1743 { 1744 int ccsindex; 1745 struct ccs __iomem *pccs; 1746 ray_dev_t *local = netdev_priv(dev); 1747 struct pcmcia_device *link = local->finder; 1748 void __iomem *p = local->sram + HOST_TO_ECF_BASE; 1749 1750 if (!(pcmcia_dev_present(link))) { 1751 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n"); 1752 return; 1753 } else 1754 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev); 1755 if ((ccsindex = get_free_ccs(local)) < 0) { 1756 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n"); 1757 return; 1758 } 1759 pccs = ccs_base(local) + ccsindex; 1760 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd); 1761 1762 if (all) { 1763 writeb(0xff, &pccs->var); 1764 local->num_multi = 0xff; 1765 } else { 1766 struct netdev_hw_addr *ha; 1767 int i = 0; 1768 1769 /* Copy the kernel's list of MC addresses to card */ 1770 netdev_for_each_mc_addr(ha, dev) { 1771 memcpy_toio(p, ha->addr, ETH_ALEN); 1772 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n", 1773 ha->addr); 1774 p += ETH_ALEN; 1775 i++; 1776 } 1777 if (i > 256 / ADDRLEN) 1778 i = 256 / ADDRLEN; 1779 writeb((UCHAR) i, &pccs->var); 1780 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i); 1781 /* Interrupt the firmware to process the command */ 1782 local->num_multi = i; 1783 } 1784 if (interrupt_ecf(local, ccsindex)) { 1785 dev_dbg(&link->dev, 1786 "ray_cs update_multi failed - ECF not ready for intr\n"); 1787 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 1788 } 1789 } /* end ray_update_multi_list */ 1790 1791 /*===========================================================================*/ 1792 static void set_multicast_list(struct net_device *dev) 1793 { 1794 ray_dev_t *local = netdev_priv(dev); 1795 UCHAR promisc; 1796 1797 pr_debug("ray_cs set_multicast_list(%p)\n", dev); 1798 1799 if (dev->flags & IFF_PROMISC) { 1800 if (local->sparm.b5.a_promiscuous_mode == 0) { 1801 pr_debug("ray_cs set_multicast_list promisc on\n"); 1802 local->sparm.b5.a_promiscuous_mode = 1; 1803 promisc = 1; 1804 ray_update_parm(dev, OBJID_promiscuous_mode, 1805 &promisc, sizeof(promisc)); 1806 } 1807 } else { 1808 if (local->sparm.b5.a_promiscuous_mode == 1) { 1809 pr_debug("ray_cs set_multicast_list promisc off\n"); 1810 local->sparm.b5.a_promiscuous_mode = 0; 1811 promisc = 0; 1812 ray_update_parm(dev, OBJID_promiscuous_mode, 1813 &promisc, sizeof(promisc)); 1814 } 1815 } 1816 1817 if (dev->flags & IFF_ALLMULTI) 1818 ray_update_multi_list(dev, 1); 1819 else { 1820 if (local->num_multi != netdev_mc_count(dev)) 1821 ray_update_multi_list(dev, 0); 1822 } 1823 } /* end set_multicast_list */ 1824 1825 /*============================================================================= 1826 * All routines below here are run at interrupt time. 1827 =============================================================================*/ 1828 static irqreturn_t ray_interrupt(int irq, void *dev_id) 1829 { 1830 struct net_device *dev = (struct net_device *)dev_id; 1831 struct pcmcia_device *link; 1832 ray_dev_t *local; 1833 struct ccs __iomem *pccs; 1834 struct rcs __iomem *prcs; 1835 UCHAR rcsindex; 1836 UCHAR tmp; 1837 UCHAR cmd; 1838 UCHAR status; 1839 UCHAR memtmp[ESSID_SIZE + 1]; 1840 1841 1842 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */ 1843 return IRQ_NONE; 1844 1845 pr_debug("ray_cs: interrupt for *dev=%p\n", dev); 1846 1847 local = netdev_priv(dev); 1848 link = local->finder; 1849 if (!pcmcia_dev_present(link)) { 1850 pr_debug( 1851 "ray_cs interrupt from device not present or suspended.\n"); 1852 return IRQ_NONE; 1853 } 1854 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index); 1855 1856 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 1857 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex); 1858 clear_interrupt(local); 1859 return IRQ_HANDLED; 1860 } 1861 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */ 1862 pccs = ccs_base(local) + rcsindex; 1863 cmd = readb(&pccs->cmd); 1864 status = readb(&pccs->buffer_status); 1865 switch (cmd) { 1866 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */ 1867 del_timer(&local->timer); 1868 if (status == CCS_COMMAND_COMPLETE) { 1869 dev_dbg(&link->dev, 1870 "ray_cs interrupt download_startup_parameters OK\n"); 1871 } else { 1872 dev_dbg(&link->dev, 1873 "ray_cs interrupt download_startup_parameters fail\n"); 1874 } 1875 break; 1876 case CCS_UPDATE_PARAMS: 1877 dev_dbg(&link->dev, "ray_cs interrupt update params done\n"); 1878 if (status != CCS_COMMAND_COMPLETE) { 1879 tmp = 1880 readb(&pccs->var.update_param. 1881 failure_cause); 1882 dev_dbg(&link->dev, 1883 "ray_cs interrupt update params failed - reason %d\n", 1884 tmp); 1885 } 1886 break; 1887 case CCS_REPORT_PARAMS: 1888 dev_dbg(&link->dev, "ray_cs interrupt report params done\n"); 1889 break; 1890 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */ 1891 dev_dbg(&link->dev, 1892 "ray_cs interrupt CCS Update Multicast List done\n"); 1893 break; 1894 case CCS_UPDATE_POWER_SAVINGS_MODE: 1895 dev_dbg(&link->dev, 1896 "ray_cs interrupt update power save mode done\n"); 1897 break; 1898 case CCS_START_NETWORK: 1899 case CCS_JOIN_NETWORK: 1900 memcpy(memtmp, local->sparm.b4.a_current_ess_id, 1901 ESSID_SIZE); 1902 memtmp[ESSID_SIZE] = '\0'; 1903 1904 if (status == CCS_COMMAND_COMPLETE) { 1905 if (readb 1906 (&pccs->var.start_network.net_initiated) == 1907 1) { 1908 dev_dbg(&link->dev, 1909 "ray_cs interrupt network \"%s\" started\n", 1910 memtmp); 1911 } else { 1912 dev_dbg(&link->dev, 1913 "ray_cs interrupt network \"%s\" joined\n", 1914 memtmp); 1915 } 1916 memcpy_fromio(&local->bss_id, 1917 pccs->var.start_network.bssid, 1918 ADDRLEN); 1919 1920 if (local->fw_ver == 0x55) 1921 local->net_default_tx_rate = 3; 1922 else 1923 local->net_default_tx_rate = 1924 readb(&pccs->var.start_network. 1925 net_default_tx_rate); 1926 local->encryption = 1927 readb(&pccs->var.start_network.encryption); 1928 if (!sniffer && (local->net_type == INFRA) 1929 && !(local->sparm.b4.a_acting_as_ap_status)) { 1930 authenticate(local); 1931 } 1932 local->card_status = CARD_ACQ_COMPLETE; 1933 } else { 1934 local->card_status = CARD_ACQ_FAILED; 1935 1936 del_timer(&local->timer); 1937 local->timer.expires = jiffies + HZ * 5; 1938 if (status == CCS_START_NETWORK) { 1939 dev_dbg(&link->dev, 1940 "ray_cs interrupt network \"%s\" start failed\n", 1941 memtmp); 1942 local->timer.function = start_net; 1943 } else { 1944 dev_dbg(&link->dev, 1945 "ray_cs interrupt network \"%s\" join failed\n", 1946 memtmp); 1947 local->timer.function = join_net; 1948 } 1949 add_timer(&local->timer); 1950 } 1951 break; 1952 case CCS_START_ASSOCIATION: 1953 if (status == CCS_COMMAND_COMPLETE) { 1954 local->card_status = CARD_ASSOC_COMPLETE; 1955 dev_dbg(&link->dev, "ray_cs association successful\n"); 1956 } else { 1957 dev_dbg(&link->dev, "ray_cs association failed,\n"); 1958 local->card_status = CARD_ASSOC_FAILED; 1959 join_net(&local->timer); 1960 } 1961 break; 1962 case CCS_TX_REQUEST: 1963 if (status == CCS_COMMAND_COMPLETE) { 1964 dev_dbg(&link->dev, 1965 "ray_cs interrupt tx request complete\n"); 1966 } else { 1967 dev_dbg(&link->dev, 1968 "ray_cs interrupt tx request failed\n"); 1969 } 1970 if (!sniffer) 1971 netif_start_queue(dev); 1972 netif_wake_queue(dev); 1973 break; 1974 case CCS_TEST_MEMORY: 1975 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n"); 1976 break; 1977 case CCS_SHUTDOWN: 1978 dev_dbg(&link->dev, 1979 "ray_cs interrupt Unexpected CCS returned - Shutdown\n"); 1980 break; 1981 case CCS_DUMP_MEMORY: 1982 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n"); 1983 break; 1984 case CCS_START_TIMER: 1985 dev_dbg(&link->dev, 1986 "ray_cs interrupt DING - raylink timer expired\n"); 1987 break; 1988 default: 1989 dev_dbg(&link->dev, 1990 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n", 1991 rcsindex, cmd); 1992 } 1993 writeb(CCS_BUFFER_FREE, &pccs->buffer_status); 1994 } else { /* It's an RCS */ 1995 1996 prcs = rcs_base(local) + rcsindex; 1997 1998 switch (readb(&prcs->interrupt_id)) { 1999 case PROCESS_RX_PACKET: 2000 ray_rx(dev, local, prcs); 2001 break; 2002 case REJOIN_NET_COMPLETE: 2003 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n"); 2004 local->card_status = CARD_ACQ_COMPLETE; 2005 /* do we need to clear tx buffers CCS's? */ 2006 if (local->sparm.b4.a_network_type == ADHOC) { 2007 if (!sniffer) 2008 netif_start_queue(dev); 2009 } else { 2010 memcpy_fromio(&local->bss_id, 2011 prcs->var.rejoin_net_complete. 2012 bssid, ADDRLEN); 2013 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n", 2014 local->bss_id); 2015 if (!sniffer) 2016 authenticate(local); 2017 } 2018 break; 2019 case ROAMING_INITIATED: 2020 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n"); 2021 netif_stop_queue(dev); 2022 local->card_status = CARD_DOING_ACQ; 2023 break; 2024 case JAPAN_CALL_SIGN_RXD: 2025 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n"); 2026 break; 2027 default: 2028 dev_dbg(&link->dev, 2029 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n", 2030 rcsindex, 2031 (unsigned int)readb(&prcs->interrupt_id)); 2032 break; 2033 } 2034 writeb(CCS_BUFFER_FREE, &prcs->buffer_status); 2035 } 2036 clear_interrupt(local); 2037 return IRQ_HANDLED; 2038 } /* ray_interrupt */ 2039 2040 /*===========================================================================*/ 2041 static void ray_rx(struct net_device *dev, ray_dev_t *local, 2042 struct rcs __iomem *prcs) 2043 { 2044 int rx_len; 2045 unsigned int pkt_addr; 2046 void __iomem *pmsg; 2047 pr_debug("ray_rx process rx packet\n"); 2048 2049 /* Calculate address of packet within Rx buffer */ 2050 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8) 2051 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END; 2052 /* Length of first packet fragment */ 2053 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8) 2054 + readb(&prcs->var.rx_packet.rx_data_length[1]); 2055 2056 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev); 2057 pmsg = local->rmem + pkt_addr; 2058 switch (readb(pmsg)) { 2059 case DATA_TYPE: 2060 pr_debug("ray_rx data type\n"); 2061 rx_data(dev, prcs, pkt_addr, rx_len); 2062 break; 2063 case AUTHENTIC_TYPE: 2064 pr_debug("ray_rx authentic type\n"); 2065 if (sniffer) 2066 rx_data(dev, prcs, pkt_addr, rx_len); 2067 else 2068 rx_authenticate(local, prcs, pkt_addr, rx_len); 2069 break; 2070 case DEAUTHENTIC_TYPE: 2071 pr_debug("ray_rx deauth type\n"); 2072 if (sniffer) 2073 rx_data(dev, prcs, pkt_addr, rx_len); 2074 else 2075 rx_deauthenticate(local, prcs, pkt_addr, rx_len); 2076 break; 2077 case NULL_MSG_TYPE: 2078 pr_debug("ray_cs rx NULL msg\n"); 2079 break; 2080 case BEACON_TYPE: 2081 pr_debug("ray_rx beacon type\n"); 2082 if (sniffer) 2083 rx_data(dev, prcs, pkt_addr, rx_len); 2084 2085 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr, 2086 rx_len < sizeof(struct beacon_rx) ? 2087 rx_len : sizeof(struct beacon_rx)); 2088 2089 local->beacon_rxed = 1; 2090 /* Get the statistics so the card counters never overflow */ 2091 ray_get_stats(dev); 2092 break; 2093 default: 2094 pr_debug("ray_cs unknown pkt type %2x\n", 2095 (unsigned int)readb(pmsg)); 2096 break; 2097 } 2098 2099 } /* end ray_rx */ 2100 2101 /*===========================================================================*/ 2102 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, 2103 unsigned int pkt_addr, int rx_len) 2104 { 2105 struct sk_buff *skb = NULL; 2106 struct rcs __iomem *prcslink = prcs; 2107 ray_dev_t *local = netdev_priv(dev); 2108 UCHAR *rx_ptr; 2109 int total_len; 2110 int tmp; 2111 #ifdef WIRELESS_SPY 2112 int siglev = local->last_rsl; 2113 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */ 2114 #endif 2115 2116 if (!sniffer) { 2117 if (translate) { 2118 /* TBD length needs fixing for translated header */ 2119 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2120 rx_len > 2121 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2122 FCS_LEN)) { 2123 pr_debug( 2124 "ray_cs invalid packet length %d received\n", 2125 rx_len); 2126 return; 2127 } 2128 } else { /* encapsulated ethernet */ 2129 2130 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) || 2131 rx_len > 2132 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + 2133 FCS_LEN)) { 2134 pr_debug( 2135 "ray_cs invalid packet length %d received\n", 2136 rx_len); 2137 return; 2138 } 2139 } 2140 } 2141 pr_debug("ray_cs rx_data packet\n"); 2142 /* If fragmented packet, verify sizes of fragments add up */ 2143 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2144 pr_debug("ray_cs rx'ed fragment\n"); 2145 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8) 2146 + readb(&prcs->var.rx_packet.totalpacketlength[1]); 2147 total_len = tmp; 2148 prcslink = prcs; 2149 do { 2150 tmp -= 2151 (readb(&prcslink->var.rx_packet.rx_data_length[0]) 2152 << 8) 2153 + readb(&prcslink->var.rx_packet.rx_data_length[1]); 2154 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) 2155 == 0xFF || tmp < 0) 2156 break; 2157 prcslink = rcs_base(local) 2158 + readb(&prcslink->link_field); 2159 } while (1); 2160 2161 if (tmp < 0) { 2162 pr_debug( 2163 "ray_cs rx_data fragment lengths don't add up\n"); 2164 local->stats.rx_dropped++; 2165 release_frag_chain(local, prcs); 2166 return; 2167 } 2168 } else { /* Single unfragmented packet */ 2169 total_len = rx_len; 2170 } 2171 2172 skb = dev_alloc_skb(total_len + 5); 2173 if (skb == NULL) { 2174 pr_debug("ray_cs rx_data could not allocate skb\n"); 2175 local->stats.rx_dropped++; 2176 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) 2177 release_frag_chain(local, prcs); 2178 return; 2179 } 2180 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */ 2181 2182 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len, 2183 rx_len); 2184 2185 /************************/ 2186 /* Reserve enough room for the whole damn packet. */ 2187 rx_ptr = skb_put(skb, total_len); 2188 /* Copy the whole packet to sk_buff */ 2189 rx_ptr += 2190 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len); 2191 /* Get source address */ 2192 #ifdef WIRELESS_SPY 2193 skb_copy_from_linear_data_offset(skb, 2194 offsetof(struct mac_header, addr_2), 2195 linksrcaddr, ETH_ALEN); 2196 #endif 2197 /* Now, deal with encapsulation/translation/sniffer */ 2198 if (!sniffer) { 2199 if (!translate) { 2200 /* Encapsulated ethernet, so just lop off 802.11 MAC header */ 2201 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */ 2202 skb_pull(skb, RX_MAC_HEADER_LENGTH); 2203 } else { 2204 /* Do translation */ 2205 untranslate(local, skb, total_len); 2206 } 2207 } else { /* sniffer mode, so just pass whole packet */ 2208 } 2209 2210 /************************/ 2211 /* Now pick up the rest of the fragments if any */ 2212 tmp = 17; 2213 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) { 2214 prcslink = prcs; 2215 pr_debug("ray_cs rx_data in fragment loop\n"); 2216 do { 2217 prcslink = rcs_base(local) 2218 + 2219 readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2220 rx_len = 2221 ((readb(&prcslink->var.rx_packet.rx_data_length[0]) 2222 << 8) 2223 + 2224 readb(&prcslink->var.rx_packet.rx_data_length[1])) 2225 & RX_BUFF_END; 2226 pkt_addr = 2227 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 2228 8) 2229 + readb(&prcslink->var.rx_packet.rx_data_ptr[1])) 2230 & RX_BUFF_END; 2231 2232 rx_ptr += 2233 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len); 2234 2235 } while (tmp-- && 2236 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 2237 0xFF); 2238 release_frag_chain(local, prcs); 2239 } 2240 2241 skb->protocol = eth_type_trans(skb, dev); 2242 netif_rx(skb); 2243 local->stats.rx_packets++; 2244 local->stats.rx_bytes += total_len; 2245 2246 /* Gather signal strength per address */ 2247 #ifdef WIRELESS_SPY 2248 /* For the Access Point or the node having started the ad-hoc net 2249 * note : ad-hoc work only in some specific configurations, but we 2250 * kludge in ray_get_wireless_stats... */ 2251 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) { 2252 /* Update statistics */ 2253 /*local->wstats.qual.qual = none ? */ 2254 local->wstats.qual.level = siglev; 2255 /*local->wstats.qual.noise = none ? */ 2256 local->wstats.qual.updated = 0x2; 2257 } 2258 /* Now, update the spy stuff */ 2259 { 2260 struct iw_quality wstats; 2261 wstats.level = siglev; 2262 /* wstats.noise = none ? */ 2263 /* wstats.qual = none ? */ 2264 wstats.updated = 0x2; 2265 /* Update spy records */ 2266 wireless_spy_update(dev, linksrcaddr, &wstats); 2267 } 2268 #endif /* WIRELESS_SPY */ 2269 } /* end rx_data */ 2270 2271 /*===========================================================================*/ 2272 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len) 2273 { 2274 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH); 2275 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data; 2276 __be16 type = *(__be16 *) psnap->ethertype; 2277 int delta; 2278 struct ethhdr *peth; 2279 UCHAR srcaddr[ADDRLEN]; 2280 UCHAR destaddr[ADDRLEN]; 2281 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 }; 2282 static const UCHAR org_1042[3] = { 0, 0, 0 }; 2283 2284 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN); 2285 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN); 2286 2287 #if 0 2288 if { 2289 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ", 2290 DUMP_PREFIX_NONE, 16, 1, 2291 skb->data, 64, true); 2292 printk(KERN_DEBUG 2293 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n", 2294 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl, 2295 psnap->org[0], psnap->org[1], psnap->org[2]); 2296 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data); 2297 } 2298 #endif 2299 2300 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) { 2301 /* not a snap type so leave it alone */ 2302 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n", 2303 psnap->dsap, psnap->ssap, psnap->ctrl); 2304 2305 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2306 peth = (struct ethhdr *)(skb->data + delta); 2307 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH); 2308 } else { /* Its a SNAP */ 2309 if (memcmp(psnap->org, org_bridge, 3) == 0) { 2310 /* EtherII and nuke the LLC */ 2311 pr_debug("ray_cs untranslate Bridge encap\n"); 2312 delta = RX_MAC_HEADER_LENGTH 2313 + sizeof(struct snaphdr_t) - ETH_HLEN; 2314 peth = (struct ethhdr *)(skb->data + delta); 2315 peth->h_proto = type; 2316 } else if (memcmp(psnap->org, org_1042, 3) == 0) { 2317 switch (ntohs(type)) { 2318 case ETH_P_IPX: 2319 case ETH_P_AARP: 2320 pr_debug("ray_cs untranslate RFC IPX/AARP\n"); 2321 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2322 peth = (struct ethhdr *)(skb->data + delta); 2323 peth->h_proto = 2324 htons(len - RX_MAC_HEADER_LENGTH); 2325 break; 2326 default: 2327 pr_debug("ray_cs untranslate RFC default\n"); 2328 delta = RX_MAC_HEADER_LENGTH + 2329 sizeof(struct snaphdr_t) - ETH_HLEN; 2330 peth = (struct ethhdr *)(skb->data + delta); 2331 peth->h_proto = type; 2332 break; 2333 } 2334 } else { 2335 printk("ray_cs untranslate very confused by packet\n"); 2336 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN; 2337 peth = (struct ethhdr *)(skb->data + delta); 2338 peth->h_proto = type; 2339 } 2340 } 2341 /* TBD reserve skb_reserve(skb, delta); */ 2342 skb_pull(skb, delta); 2343 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta, 2344 skb->data); 2345 memcpy(peth->h_dest, destaddr, ADDRLEN); 2346 memcpy(peth->h_source, srcaddr, ADDRLEN); 2347 #if 0 2348 { 2349 int i; 2350 printk(KERN_DEBUG "skb->data after untranslate:"); 2351 for (i = 0; i < 64; i++) 2352 printk("%02x ", skb->data[i]); 2353 printk("\n"); 2354 } 2355 #endif 2356 } /* end untranslate */ 2357 2358 /*===========================================================================*/ 2359 /* Copy data from circular receive buffer to PC memory. 2360 * dest = destination address in PC memory 2361 * pkt_addr = source address in receive buffer 2362 * len = length of packet to copy 2363 */ 2364 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, 2365 int length) 2366 { 2367 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1); 2368 if (wrap_bytes <= 0) { 2369 memcpy_fromio(dest, local->rmem + pkt_addr, length); 2370 } else { /* Packet wrapped in circular buffer */ 2371 2372 memcpy_fromio(dest, local->rmem + pkt_addr, 2373 length - wrap_bytes); 2374 memcpy_fromio(dest + length - wrap_bytes, local->rmem, 2375 wrap_bytes); 2376 } 2377 return length; 2378 } 2379 2380 /*===========================================================================*/ 2381 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs) 2382 { 2383 struct rcs __iomem *prcslink = prcs; 2384 int tmp = 17; 2385 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index); 2386 2387 while (tmp--) { 2388 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2389 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) { 2390 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n", 2391 rcsindex); 2392 break; 2393 } 2394 prcslink = rcs_base(local) + rcsindex; 2395 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index); 2396 } 2397 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status); 2398 } 2399 2400 /*===========================================================================*/ 2401 static void authenticate(ray_dev_t *local) 2402 { 2403 struct pcmcia_device *link = local->finder; 2404 dev_dbg(&link->dev, "ray_cs Starting authentication.\n"); 2405 if (!(pcmcia_dev_present(link))) { 2406 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n"); 2407 return; 2408 } 2409 2410 del_timer(&local->timer); 2411 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) { 2412 local->timer.function = join_net; 2413 } else { 2414 local->timer.function = authenticate_timeout; 2415 } 2416 local->timer.expires = jiffies + HZ * 2; 2417 add_timer(&local->timer); 2418 local->authentication_state = AWAITING_RESPONSE; 2419 } /* end authenticate */ 2420 2421 /*===========================================================================*/ 2422 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2423 unsigned int pkt_addr, int rx_len) 2424 { 2425 UCHAR buff[256]; 2426 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2427 2428 del_timer(&local->timer); 2429 2430 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2431 /* if we are trying to get authenticated */ 2432 if (local->sparm.b4.a_network_type == ADHOC) { 2433 pr_debug("ray_cs rx_auth var= %6ph\n", msg->var); 2434 if (msg->var[2] == 1) { 2435 pr_debug("ray_cs Sending authentication response.\n"); 2436 if (!build_auth_frame 2437 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) { 2438 local->authentication_state = NEED_TO_AUTH; 2439 memcpy(local->auth_id, msg->mac.addr_2, 2440 ADDRLEN); 2441 } 2442 } 2443 } else { /* Infrastructure network */ 2444 2445 if (local->authentication_state == AWAITING_RESPONSE) { 2446 /* Verify authentication sequence #2 and success */ 2447 if (msg->var[2] == 2) { 2448 if ((msg->var[3] | msg->var[4]) == 0) { 2449 pr_debug("Authentication successful\n"); 2450 local->card_status = CARD_AUTH_COMPLETE; 2451 associate(local); 2452 local->authentication_state = 2453 AUTHENTICATED; 2454 } else { 2455 pr_debug("Authentication refused\n"); 2456 local->card_status = CARD_AUTH_REFUSED; 2457 join_net(&local->timer); 2458 local->authentication_state = 2459 UNAUTHENTICATED; 2460 } 2461 } 2462 } 2463 } 2464 2465 } /* end rx_authenticate */ 2466 2467 /*===========================================================================*/ 2468 static void associate(ray_dev_t *local) 2469 { 2470 struct ccs __iomem *pccs; 2471 struct pcmcia_device *link = local->finder; 2472 struct net_device *dev = link->priv; 2473 int ccsindex; 2474 if (!(pcmcia_dev_present(link))) { 2475 dev_dbg(&link->dev, "ray_cs associate - device not present\n"); 2476 return; 2477 } 2478 /* If no tx buffers available, return */ 2479 if ((ccsindex = get_free_ccs(local)) < 0) { 2480 /* TBD should never be here but... what if we are? */ 2481 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n"); 2482 return; 2483 } 2484 dev_dbg(&link->dev, "ray_cs Starting association with access point\n"); 2485 pccs = ccs_base(local) + ccsindex; 2486 /* fill in the CCS */ 2487 writeb(CCS_START_ASSOCIATION, &pccs->cmd); 2488 /* Interrupt the firmware to process the command */ 2489 if (interrupt_ecf(local, ccsindex)) { 2490 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n"); 2491 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2492 2493 del_timer(&local->timer); 2494 local->timer.expires = jiffies + HZ * 2; 2495 local->timer.function = join_net; 2496 add_timer(&local->timer); 2497 local->card_status = CARD_ASSOC_FAILED; 2498 return; 2499 } 2500 if (!sniffer) 2501 netif_start_queue(dev); 2502 2503 } /* end associate */ 2504 2505 /*===========================================================================*/ 2506 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs, 2507 unsigned int pkt_addr, int rx_len) 2508 { 2509 /* UCHAR buff[256]; 2510 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff; 2511 */ 2512 pr_debug("Deauthentication frame received\n"); 2513 local->authentication_state = UNAUTHENTICATED; 2514 /* Need to reauthenticate or rejoin depending on reason code */ 2515 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff); 2516 */ 2517 } 2518 2519 /*===========================================================================*/ 2520 static void clear_interrupt(ray_dev_t *local) 2521 { 2522 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET); 2523 } 2524 2525 /*===========================================================================*/ 2526 #ifdef CONFIG_PROC_FS 2527 #define MAXDATA (PAGE_SIZE - 80) 2528 2529 static const char *card_status[] = { 2530 "Card inserted - uninitialized", /* 0 */ 2531 "Card not downloaded", /* 1 */ 2532 "Waiting for download parameters", /* 2 */ 2533 "Card doing acquisition", /* 3 */ 2534 "Acquisition complete", /* 4 */ 2535 "Authentication complete", /* 5 */ 2536 "Association complete", /* 6 */ 2537 "???", "???", "???", "???", /* 7 8 9 10 undefined */ 2538 "Card init error", /* 11 */ 2539 "Download parameters error", /* 12 */ 2540 "???", /* 13 */ 2541 "Acquisition failed", /* 14 */ 2542 "Authentication refused", /* 15 */ 2543 "Association failed" /* 16 */ 2544 }; 2545 2546 static const char *nettype[] = { "Adhoc", "Infra " }; 2547 static const char *framing[] = { "Encapsulation", "Translation" } 2548 2549 ; 2550 /*===========================================================================*/ 2551 static int ray_cs_proc_show(struct seq_file *m, void *v) 2552 { 2553 /* Print current values which are not available via other means 2554 * eg ifconfig 2555 */ 2556 int i; 2557 struct pcmcia_device *link; 2558 struct net_device *dev; 2559 ray_dev_t *local; 2560 UCHAR *p; 2561 struct freq_hop_element *pfh; 2562 UCHAR c[33]; 2563 2564 link = this_device; 2565 if (!link) 2566 return 0; 2567 dev = (struct net_device *)link->priv; 2568 if (!dev) 2569 return 0; 2570 local = netdev_priv(dev); 2571 if (!local) 2572 return 0; 2573 2574 seq_puts(m, "Raylink Wireless LAN driver status\n"); 2575 seq_printf(m, "%s\n", rcsid); 2576 /* build 4 does not report version, and field is 0x55 after memtest */ 2577 seq_puts(m, "Firmware version = "); 2578 if (local->fw_ver == 0x55) 2579 seq_puts(m, "4 - Use dump_cis for more details\n"); 2580 else 2581 seq_printf(m, "%2d.%02d.%02d\n", 2582 local->fw_ver, local->fw_bld, local->fw_var); 2583 2584 for (i = 0; i < 32; i++) 2585 c[i] = local->sparm.b5.a_current_ess_id[i]; 2586 c[32] = 0; 2587 seq_printf(m, "%s network ESSID = \"%s\"\n", 2588 nettype[local->sparm.b5.a_network_type], c); 2589 2590 p = local->bss_id; 2591 seq_printf(m, "BSSID = %pM\n", p); 2592 2593 seq_printf(m, "Country code = %d\n", 2594 local->sparm.b5.a_curr_country_code); 2595 2596 i = local->card_status; 2597 if (i < 0) 2598 i = 10; 2599 if (i > 16) 2600 i = 10; 2601 seq_printf(m, "Card status = %s\n", card_status[i]); 2602 2603 seq_printf(m, "Framing mode = %s\n", framing[translate]); 2604 2605 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl); 2606 2607 if (local->beacon_rxed) { 2608 /* Pull some fields out of last beacon received */ 2609 seq_printf(m, "Beacon Interval = %d Kus\n", 2610 local->last_bcn.beacon_intvl[0] 2611 + 256 * local->last_bcn.beacon_intvl[1]); 2612 2613 p = local->last_bcn.elements; 2614 if (p[0] == C_ESSID_ELEMENT_ID) 2615 p += p[1] + 2; 2616 else { 2617 seq_printf(m, 2618 "Parse beacon failed at essid element id = %d\n", 2619 p[0]); 2620 return 0; 2621 } 2622 2623 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) { 2624 seq_puts(m, "Supported rate codes = "); 2625 for (i = 2; i < p[1] + 2; i++) 2626 seq_printf(m, "0x%02x ", p[i]); 2627 seq_putc(m, '\n'); 2628 p += p[1] + 2; 2629 } else { 2630 seq_puts(m, "Parse beacon failed at rates element\n"); 2631 return 0; 2632 } 2633 2634 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) { 2635 pfh = (struct freq_hop_element *)p; 2636 seq_printf(m, "Hop dwell = %d Kus\n", 2637 pfh->dwell_time[0] + 2638 256 * pfh->dwell_time[1]); 2639 seq_printf(m, "Hop set = %d\n", 2640 pfh->hop_set); 2641 seq_printf(m, "Hop pattern = %d\n", 2642 pfh->hop_pattern); 2643 seq_printf(m, "Hop index = %d\n", 2644 pfh->hop_index); 2645 p += p[1] + 2; 2646 } else { 2647 seq_puts(m, 2648 "Parse beacon failed at FH param element\n"); 2649 return 0; 2650 } 2651 } else { 2652 seq_puts(m, "No beacons received\n"); 2653 } 2654 return 0; 2655 } 2656 #endif 2657 /*===========================================================================*/ 2658 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) 2659 { 2660 int addr; 2661 struct ccs __iomem *pccs; 2662 struct tx_msg __iomem *ptx; 2663 int ccsindex; 2664 2665 /* If no tx buffers available, return */ 2666 if ((ccsindex = get_free_tx_ccs(local)) < 0) { 2667 pr_debug("ray_cs send authenticate - No free tx ccs\n"); 2668 return -1; 2669 } 2670 2671 pccs = ccs_base(local) + ccsindex; 2672 2673 /* Address in card space */ 2674 addr = TX_BUF_BASE + (ccsindex << 11); 2675 /* fill in the CCS */ 2676 writeb(CCS_TX_REQUEST, &pccs->cmd); 2677 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr); 2678 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1); 2679 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length); 2680 writeb(TX_AUTHENTICATE_LENGTH_LSB, 2681 pccs->var.tx_request.tx_data_length + 1); 2682 writeb(0, &pccs->var.tx_request.pow_sav_mode); 2683 2684 ptx = local->sram + addr; 2685 /* fill in the mac header */ 2686 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1); 2687 writeb(0, &ptx->mac.frame_ctl_2); 2688 2689 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN); 2690 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN); 2691 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN); 2692 2693 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */ 2694 memset_io(ptx->var, 0, 6); 2695 writeb(auth_type & 0xff, ptx->var + 2); 2696 2697 /* Interrupt the firmware to process the command */ 2698 if (interrupt_ecf(local, ccsindex)) { 2699 pr_debug( 2700 "ray_cs send authentication request failed - ECF not ready for intr\n"); 2701 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status); 2702 return -1; 2703 } 2704 return 0; 2705 } /* End build_auth_frame */ 2706 2707 /*===========================================================================*/ 2708 #ifdef CONFIG_PROC_FS 2709 static ssize_t ray_cs_essid_proc_write(struct file *file, 2710 const char __user *buffer, size_t count, loff_t *pos) 2711 { 2712 static char proc_essid[33]; 2713 unsigned int len = count; 2714 2715 if (len > 32) 2716 len = 32; 2717 memset(proc_essid, 0, 33); 2718 if (copy_from_user(proc_essid, buffer, len)) 2719 return -EFAULT; 2720 essid = proc_essid; 2721 return count; 2722 } 2723 2724 static const struct proc_ops ray_cs_essid_proc_ops = { 2725 .proc_write = ray_cs_essid_proc_write, 2726 .proc_lseek = noop_llseek, 2727 }; 2728 2729 static ssize_t int_proc_write(struct file *file, const char __user *buffer, 2730 size_t count, loff_t *pos) 2731 { 2732 static char proc_number[10]; 2733 char *p; 2734 int nr, len; 2735 2736 if (!count) 2737 return 0; 2738 2739 if (count > 9) 2740 return -EINVAL; 2741 if (copy_from_user(proc_number, buffer, count)) 2742 return -EFAULT; 2743 p = proc_number; 2744 nr = 0; 2745 len = count; 2746 do { 2747 unsigned int c = *p - '0'; 2748 if (c > 9) 2749 return -EINVAL; 2750 nr = nr * 10 + c; 2751 p++; 2752 } while (--len); 2753 *(int *)pde_data(file_inode(file)) = nr; 2754 return count; 2755 } 2756 2757 static const struct proc_ops int_proc_ops = { 2758 .proc_write = int_proc_write, 2759 .proc_lseek = noop_llseek, 2760 }; 2761 #endif 2762 2763 static const struct pcmcia_device_id ray_ids[] = { 2764 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000), 2765 PCMCIA_DEVICE_NULL, 2766 }; 2767 2768 MODULE_DEVICE_TABLE(pcmcia, ray_ids); 2769 2770 static struct pcmcia_driver ray_driver = { 2771 .owner = THIS_MODULE, 2772 .name = "ray_cs", 2773 .probe = ray_probe, 2774 .remove = ray_detach, 2775 .id_table = ray_ids, 2776 .suspend = ray_suspend, 2777 .resume = ray_resume, 2778 }; 2779 2780 static int __init init_ray_cs(void) 2781 { 2782 int rc; 2783 2784 pr_debug("%s\n", rcsid); 2785 rc = pcmcia_register_driver(&ray_driver); 2786 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", 2787 rc); 2788 if (rc) 2789 return rc; 2790 2791 #ifdef CONFIG_PROC_FS 2792 proc_mkdir("driver/ray_cs", NULL); 2793 2794 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show); 2795 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops); 2796 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops, 2797 &net_type); 2798 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops, 2799 &translate); 2800 #endif 2801 translate = !!translate; 2802 return 0; 2803 } /* init_ray_cs */ 2804 2805 /*===========================================================================*/ 2806 2807 static void __exit exit_ray_cs(void) 2808 { 2809 pr_debug("ray_cs: cleanup_module\n"); 2810 2811 #ifdef CONFIG_PROC_FS 2812 remove_proc_subtree("driver/ray_cs", NULL); 2813 #endif 2814 2815 pcmcia_unregister_driver(&ray_driver); 2816 } /* exit_ray_cs */ 2817 2818 module_init(init_ray_cs); 2819 module_exit(exit_ray_cs); 2820 2821 /*===========================================================================*/ 2822