1 /****************************************************************************** 2 * os_intfs.c 3 * 4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. 5 * Linux device driver for RTL8192SU 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of version 2 of the GNU General Public License as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * Modifications for inclusion into the Linux staging tree are 17 * Copyright(c) 2010 Larry Finger. All rights reserved. 18 * 19 * Contact information: 20 * WLAN FAE <wlanfae@realtek.com>. 21 * Larry Finger <Larry.Finger@lwfinger.net> 22 * 23 ******************************************************************************/ 24 25 #define _OS_INTFS_C_ 26 27 #include <linux/module.h> 28 #include <linux/kthread.h> 29 #include <linux/firmware.h> 30 #include "osdep_service.h" 31 #include "drv_types.h" 32 #include "xmit_osdep.h" 33 #include "recv_osdep.h" 34 #include "rtl871x_ioctl.h" 35 #include "usb_osintf.h" 36 37 MODULE_LICENSE("GPL"); 38 MODULE_DESCRIPTION("rtl871x wireless lan driver"); 39 MODULE_AUTHOR("Larry Finger"); 40 41 static char ifname[IFNAMSIZ] = "wlan%d"; 42 43 /* module param defaults */ 44 static int chip_version = RTL8712_2ndCUT; 45 static int rfintfs = HWPI; 46 static int lbkmode = RTL8712_AIR_TRX; 47 static int hci = RTL8712_USB; 48 static int ampdu_enable = 1;/*for enable tx_ampdu*/ 49 50 /* The video_mode variable is for video mode.*/ 51 /* It may be specify when inserting module with video_mode=1 parameter.*/ 52 static int video_mode = 1; /* enable video mode*/ 53 54 /*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ 55 static int network_mode = Ndis802_11IBSS; 56 static int channel = 1;/*ad-hoc support requirement*/ 57 static int wireless_mode = WIRELESS_11BG; 58 static int vrtl_carrier_sense = AUTO_VCS; 59 static int vcs_type = RTS_CTS; 60 static int frag_thresh = 2346; 61 static int preamble = PREAMBLE_LONG;/*long, short, auto*/ 62 static int scan_mode = 1;/*active, passive*/ 63 static int adhoc_tx_pwr = 1; 64 static int soft_ap; 65 static int smart_ps = 1; 66 static int power_mgnt = PS_MODE_ACTIVE; 67 static int radio_enable = 1; 68 static int long_retry_lmt = 7; 69 static int short_retry_lmt = 7; 70 static int busy_thresh = 40; 71 static int ack_policy = NORMAL_ACK; 72 static int mp_mode; 73 static int software_encrypt; 74 static int software_decrypt; 75 76 static int wmm_enable;/* default is set to disable the wmm.*/ 77 static int uapsd_enable; 78 static int uapsd_max_sp = NO_LIMIT; 79 static int uapsd_acbk_en; 80 static int uapsd_acbe_en; 81 static int uapsd_acvi_en; 82 static int uapsd_acvo_en; 83 84 static int ht_enable = 1; 85 static int cbw40_enable = 1; 86 static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ 87 static int low_power; 88 /* mac address to use instead of the one stored in Efuse */ 89 char *r8712_initmac; 90 static char *initmac; 91 /* if wifi_test = 1, driver will disable the turbo mode and pass it to 92 * firmware private. 93 */ 94 static int wifi_test; 95 96 module_param_string(ifname, ifname, sizeof(ifname), 0644); 97 module_param(wifi_test, int, 0644); 98 module_param(initmac, charp, 0644); 99 module_param(video_mode, int, 0644); 100 module_param(chip_version, int, 0644); 101 module_param(rfintfs, int, 0644); 102 module_param(lbkmode, int, 0644); 103 module_param(hci, int, 0644); 104 module_param(network_mode, int, 0644); 105 module_param(channel, int, 0644); 106 module_param(mp_mode, int, 0644); 107 module_param(wmm_enable, int, 0644); 108 module_param(vrtl_carrier_sense, int, 0644); 109 module_param(vcs_type, int, 0644); 110 module_param(busy_thresh, int, 0644); 111 module_param(ht_enable, int, 0644); 112 module_param(cbw40_enable, int, 0644); 113 module_param(ampdu_enable, int, 0644); 114 module_param(rf_config, int, 0644); 115 module_param(power_mgnt, int, 0644); 116 module_param(low_power, int, 0644); 117 118 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 119 MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); 120 121 static int netdev_open(struct net_device *pnetdev); 122 static int netdev_close(struct net_device *pnetdev); 123 124 static void loadparam(struct _adapter *padapter, struct net_device *pnetdev) 125 { 126 struct registry_priv *registry_par = &padapter->registrypriv; 127 128 registry_par->chip_version = (u8)chip_version; 129 registry_par->rfintfs = (u8)rfintfs; 130 registry_par->lbkmode = (u8)lbkmode; 131 registry_par->hci = (u8)hci; 132 registry_par->network_mode = (u8)network_mode; 133 memcpy(registry_par->ssid.Ssid, "ANY", 3); 134 registry_par->ssid.SsidLength = 3; 135 registry_par->channel = (u8)channel; 136 registry_par->wireless_mode = (u8)wireless_mode; 137 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense; 138 registry_par->vcs_type = (u8)vcs_type; 139 registry_par->frag_thresh = (u16)frag_thresh; 140 registry_par->preamble = (u8)preamble; 141 registry_par->scan_mode = (u8)scan_mode; 142 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr; 143 registry_par->soft_ap = (u8)soft_ap; 144 registry_par->smart_ps = (u8)smart_ps; 145 registry_par->power_mgnt = (u8)power_mgnt; 146 registry_par->radio_enable = (u8)radio_enable; 147 registry_par->long_retry_lmt = (u8)long_retry_lmt; 148 registry_par->short_retry_lmt = (u8)short_retry_lmt; 149 registry_par->busy_thresh = (u16)busy_thresh; 150 registry_par->ack_policy = (u8)ack_policy; 151 registry_par->mp_mode = (u8)mp_mode; 152 registry_par->software_encrypt = (u8)software_encrypt; 153 registry_par->software_decrypt = (u8)software_decrypt; 154 /*UAPSD*/ 155 registry_par->wmm_enable = (u8)wmm_enable; 156 registry_par->uapsd_enable = (u8)uapsd_enable; 157 registry_par->uapsd_max_sp = (u8)uapsd_max_sp; 158 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en; 159 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en; 160 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en; 161 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en; 162 registry_par->ht_enable = (u8)ht_enable; 163 registry_par->cbw40_enable = (u8)cbw40_enable; 164 registry_par->ampdu_enable = (u8)ampdu_enable; 165 registry_par->rf_config = (u8)rf_config; 166 registry_par->low_power = (u8)low_power; 167 registry_par->wifi_test = (u8)wifi_test; 168 r8712_initmac = initmac; 169 } 170 171 static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p) 172 { 173 struct _adapter *padapter = netdev_priv(pnetdev); 174 struct sockaddr *addr = p; 175 176 if (!padapter->bup) 177 ether_addr_copy(pnetdev->dev_addr, addr->sa_data); 178 return 0; 179 } 180 181 static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev) 182 { 183 struct _adapter *padapter = netdev_priv(pnetdev); 184 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 185 struct recv_priv *precvpriv = &padapter->recvpriv; 186 187 padapter->stats.tx_packets = pxmitpriv->tx_pkts; 188 padapter->stats.rx_packets = precvpriv->rx_pkts; 189 padapter->stats.tx_dropped = pxmitpriv->tx_drop; 190 padapter->stats.rx_dropped = precvpriv->rx_drop; 191 padapter->stats.tx_bytes = pxmitpriv->tx_bytes; 192 padapter->stats.rx_bytes = precvpriv->rx_bytes; 193 return &padapter->stats; 194 } 195 196 static const struct net_device_ops rtl8712_netdev_ops = { 197 .ndo_open = netdev_open, 198 .ndo_stop = netdev_close, 199 .ndo_start_xmit = r8712_xmit_entry, 200 .ndo_set_mac_address = r871x_net_set_mac_address, 201 .ndo_get_stats = r871x_net_get_stats, 202 .ndo_do_ioctl = r871x_ioctl, 203 }; 204 205 struct net_device *r8712_init_netdev(void) 206 { 207 struct _adapter *padapter; 208 struct net_device *pnetdev; 209 210 pnetdev = alloc_etherdev(sizeof(struct _adapter)); 211 if (!pnetdev) 212 return NULL; 213 if (dev_alloc_name(pnetdev, ifname) < 0) { 214 strcpy(ifname, "wlan%d"); 215 dev_alloc_name(pnetdev, ifname); 216 } 217 padapter = netdev_priv(pnetdev); 218 padapter->pnetdev = pnetdev; 219 pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n"); 220 pnetdev->netdev_ops = &rtl8712_netdev_ops; 221 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */ 222 pnetdev->wireless_handlers = (struct iw_handler_def *) 223 &r871x_handlers_def; 224 loadparam(padapter, pnetdev); 225 netif_carrier_off(pnetdev); 226 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/ 227 return pnetdev; 228 } 229 230 static u32 start_drv_threads(struct _adapter *padapter) 231 { 232 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter, "%s", 233 padapter->pnetdev->name); 234 if (IS_ERR(padapter->cmdThread)) 235 return _FAIL; 236 return _SUCCESS; 237 } 238 239 void r8712_stop_drv_threads(struct _adapter *padapter) 240 { 241 struct completion *completion = 242 &padapter->cmdpriv.terminate_cmdthread_comp; 243 244 /*Below is to terminate r8712_cmd_thread & event_thread...*/ 245 complete(&padapter->cmdpriv.cmd_queue_comp); 246 if (padapter->cmdThread) 247 wait_for_completion_interruptible(completion); 248 padapter->cmdpriv.cmd_seq = 1; 249 } 250 251 static void start_drv_timers(struct _adapter *padapter) 252 { 253 mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, 254 jiffies + msecs_to_jiffies(5000)); 255 mod_timer(&padapter->mlmepriv.wdg_timer, 256 jiffies + msecs_to_jiffies(2000)); 257 } 258 259 void r8712_stop_drv_timers(struct _adapter *padapter) 260 { 261 del_timer_sync(&padapter->mlmepriv.assoc_timer); 262 del_timer_sync(&padapter->securitypriv.tkip_timer); 263 del_timer_sync(&padapter->mlmepriv.scan_to_timer); 264 del_timer_sync(&padapter->mlmepriv.dhcp_timer); 265 del_timer_sync(&padapter->mlmepriv.wdg_timer); 266 del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer); 267 } 268 269 static u8 init_default_value(struct _adapter *padapter) 270 { 271 struct registry_priv *pregistrypriv = &padapter->registrypriv; 272 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 273 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 274 struct security_priv *psecuritypriv = &padapter->securitypriv; 275 276 /*xmit_priv*/ 277 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; 278 pxmitpriv->vcs = pregistrypriv->vcs_type; 279 pxmitpriv->vcs_type = pregistrypriv->vcs_type; 280 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; 281 pxmitpriv->frag_len = pregistrypriv->frag_thresh; 282 /* mlme_priv */ 283 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ 284 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ 285 /*ht_priv*/ 286 { 287 int i; 288 struct ht_priv *phtpriv = &pmlmepriv->htpriv; 289 290 phtpriv->ampdu_enable = false;/*set to disabled*/ 291 for (i = 0; i < 16; i++) 292 phtpriv->baddbareq_issued[i] = false; 293 } 294 /*security_priv*/ 295 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; 296 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; 297 psecuritypriv->binstallGrpkey = _FAIL; 298 /*pwrctrl_priv*/ 299 /*registry_priv*/ 300 r8712_init_registrypriv_dev_network(padapter); 301 r8712_update_registrypriv_dev_network(padapter); 302 /*misc.*/ 303 return _SUCCESS; 304 } 305 306 u8 r8712_init_drv_sw(struct _adapter *padapter) 307 { 308 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL) 309 return _FAIL; 310 padapter->cmdpriv.padapter = padapter; 311 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL) 312 return _FAIL; 313 if (r8712_init_mlme_priv(padapter) == _FAIL) 314 return _FAIL; 315 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); 316 _r8712_init_recv_priv(&padapter->recvpriv, padapter); 317 memset((unsigned char *)&padapter->securitypriv, 0, 318 sizeof(struct security_priv)); 319 timer_setup(&padapter->securitypriv.tkip_timer, 320 r8712_use_tkipkey_handler, 0); 321 _r8712_init_sta_priv(&padapter->stapriv); 322 padapter->stapriv.padapter = padapter; 323 r8712_init_bcmc_stainfo(padapter); 324 r8712_init_pwrctrl_priv(padapter); 325 mp871xinit(padapter); 326 if (init_default_value(padapter) != _SUCCESS) 327 return _FAIL; 328 r8712_InitSwLeds(padapter); 329 return _SUCCESS; 330 } 331 332 u8 r8712_free_drv_sw(struct _adapter *padapter) 333 { 334 struct net_device *pnetdev = padapter->pnetdev; 335 336 r8712_free_cmd_priv(&padapter->cmdpriv); 337 r8712_free_evt_priv(&padapter->evtpriv); 338 r8712_DeInitSwLeds(padapter); 339 r8712_free_mlme_priv(&padapter->mlmepriv); 340 r8712_free_io_queue(padapter); 341 _free_xmit_priv(&padapter->xmitpriv); 342 _r8712_free_sta_priv(&padapter->stapriv); 343 _r8712_free_recv_priv(&padapter->recvpriv); 344 mp871xdeinit(padapter); 345 if (pnetdev) 346 free_netdev(pnetdev); 347 return _SUCCESS; 348 } 349 350 static void enable_video_mode(struct _adapter *padapter, int cbw40_value) 351 { 352 /* bit 8: 353 * 1 -> enable video mode to 96B AP 354 * 0 -> disable video mode to 96B AP 355 * bit 9: 356 * 1 -> enable 40MHz mode 357 * 0 -> disable 40MHz mode 358 * bit 10: 359 * 1 -> enable STBC 360 * 0 -> disable STBC 361 */ 362 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ 363 364 if (cbw40_value) { 365 /* if the driver supports the 40M bandwidth, 366 * we can enable the bit 9. 367 */ 368 intcmd |= 0x200; 369 } 370 r8712_fw_cmd(padapter, intcmd); 371 } 372 373 /** 374 * 375 * This function intends to handle the activation of an interface 376 * i.e. when it is brought Up/Active from a Down state. 377 * 378 */ 379 static int netdev_open(struct net_device *pnetdev) 380 { 381 struct _adapter *padapter = netdev_priv(pnetdev); 382 383 mutex_lock(&padapter->mutex_start); 384 if (!padapter->bup) { 385 padapter->bDriverStopped = false; 386 padapter->bSurpriseRemoved = false; 387 padapter->bup = true; 388 if (rtl871x_hal_init(padapter) != _SUCCESS) 389 goto netdev_open_error; 390 if (!r8712_initmac) { 391 /* Use the mac address stored in the Efuse */ 392 memcpy(pnetdev->dev_addr, 393 padapter->eeprompriv.mac_addr, ETH_ALEN); 394 } else { 395 /* We have to inform f/w to use user-supplied MAC 396 * address. 397 */ 398 msleep(200); 399 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr); 400 /* 401 * The "myid" function will get the wifi mac address 402 * from eeprompriv structure instead of netdev 403 * structure. So, we have to overwrite the mac_addr 404 * stored in the eeprompriv structure. In this case, 405 * the real mac address won't be used anymore. So that, 406 * the eeprompriv.mac_addr should store the mac which 407 * users specify. 408 */ 409 memcpy(padapter->eeprompriv.mac_addr, 410 pnetdev->dev_addr, ETH_ALEN); 411 } 412 if (start_drv_threads(padapter) != _SUCCESS) 413 goto netdev_open_error; 414 if (!padapter->dvobjpriv.inirp_init) 415 goto netdev_open_error; 416 else 417 padapter->dvobjpriv.inirp_init(padapter); 418 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt, 419 padapter->registrypriv.smart_ps); 420 } 421 if (!netif_queue_stopped(pnetdev)) 422 netif_start_queue(pnetdev); 423 else 424 netif_wake_queue(pnetdev); 425 426 if (video_mode) 427 enable_video_mode(padapter, cbw40_enable); 428 /* start driver mlme relation timer */ 429 start_drv_timers(padapter); 430 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK); 431 mutex_unlock(&padapter->mutex_start); 432 return 0; 433 netdev_open_error: 434 padapter->bup = false; 435 netif_carrier_off(pnetdev); 436 netif_stop_queue(pnetdev); 437 mutex_unlock(&padapter->mutex_start); 438 return -1; 439 } 440 441 /** 442 * 443 * This function intends to handle the shutdown of an interface 444 * i.e. when it is brought Down from an Up/Active state. 445 * 446 */ 447 static int netdev_close(struct net_device *pnetdev) 448 { 449 struct _adapter *padapter = netdev_priv(pnetdev); 450 451 /* Close LED*/ 452 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF); 453 msleep(200); 454 455 /*s1.*/ 456 if (pnetdev) { 457 if (!netif_queue_stopped(pnetdev)) 458 netif_stop_queue(pnetdev); 459 } 460 /*s2.*/ 461 /*s2-1. issue disassoc_cmd to fw*/ 462 r8712_disassoc_cmd(padapter); 463 /*s2-2. indicate disconnect to os*/ 464 r8712_ind_disconnect(padapter); 465 /*s2-3.*/ 466 r8712_free_assoc_resources(padapter); 467 /*s2-4.*/ 468 r8712_free_network_queue(padapter); 469 return 0; 470 } 471 472 #include "mlme_osdep.h" 473