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 * You should have received a copy of the GNU General Public License along with 17 * this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 19 * 20 * Modifications for inclusion into the Linux staging tree are 21 * Copyright(c) 2010 Larry Finger. All rights reserved. 22 * 23 * Contact information: 24 * WLAN FAE <wlanfae@realtek.com>. 25 * Larry Finger <Larry.Finger@lwfinger.net> 26 * 27 ******************************************************************************/ 28 29 #define _OS_INTFS_C_ 30 31 #include <linux/module.h> 32 #include <linux/kthread.h> 33 #include <linux/firmware.h> 34 #include "osdep_service.h" 35 #include "drv_types.h" 36 #include "xmit_osdep.h" 37 #include "recv_osdep.h" 38 #include "rtl871x_ioctl.h" 39 #include "usb_osintf.h" 40 41 MODULE_LICENSE("GPL"); 42 MODULE_DESCRIPTION("rtl871x wireless lan driver"); 43 MODULE_AUTHOR("Larry Finger"); 44 45 static char ifname[IFNAMSIZ] = "wlan%d"; 46 47 /* module param defaults */ 48 static int chip_version = RTL8712_2ndCUT; 49 static int rfintfs = HWPI; 50 static int lbkmode = RTL8712_AIR_TRX; 51 static int hci = RTL8712_USB; 52 static int ampdu_enable = 1;/*for enable tx_ampdu*/ 53 54 /* The video_mode variable is for video mode.*/ 55 /* It may be specify when inserting module with video_mode=1 parameter.*/ 56 static int video_mode = 1; /* enable video mode*/ 57 58 /*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ 59 static int network_mode = Ndis802_11IBSS; 60 static int channel = 1;/*ad-hoc support requirement*/ 61 static int wireless_mode = WIRELESS_11BG; 62 static int vrtl_carrier_sense = AUTO_VCS; 63 static int vcs_type = RTS_CTS; 64 static int frag_thresh = 2346; 65 static int preamble = PREAMBLE_LONG;/*long, short, auto*/ 66 static int scan_mode = 1;/*active, passive*/ 67 static int adhoc_tx_pwr = 1; 68 static int soft_ap; 69 static int smart_ps = 1; 70 static int power_mgnt = PS_MODE_ACTIVE; 71 static int radio_enable = 1; 72 static int long_retry_lmt = 7; 73 static int short_retry_lmt = 7; 74 static int busy_thresh = 40; 75 static int ack_policy = NORMAL_ACK; 76 static int mp_mode; 77 static int software_encrypt; 78 static int software_decrypt; 79 80 static int wmm_enable;/* default is set to disable the wmm.*/ 81 static int uapsd_enable; 82 static int uapsd_max_sp = NO_LIMIT; 83 static int uapsd_acbk_en; 84 static int uapsd_acbe_en; 85 static int uapsd_acvi_en; 86 static int uapsd_acvo_en; 87 88 static int ht_enable = 1; 89 static int cbw40_enable = 1; 90 static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ 91 static int low_power; 92 /* mac address to use instead of the one stored in Efuse */ 93 char *r8712_initmac; 94 static char *initmac; 95 /* if wifi_test = 1, driver will disable the turbo mode and pass it to 96 * firmware private. 97 */ 98 static int wifi_test; 99 100 module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO | S_IWUSR); 101 module_param(wifi_test, int, 0644); 102 module_param(initmac, charp, 0644); 103 module_param(video_mode, int, 0644); 104 module_param(chip_version, int, 0644); 105 module_param(rfintfs, int, 0644); 106 module_param(lbkmode, int, 0644); 107 module_param(hci, int, 0644); 108 module_param(network_mode, int, 0644); 109 module_param(channel, int, 0644); 110 module_param(mp_mode, int, 0644); 111 module_param(wmm_enable, int, 0644); 112 module_param(vrtl_carrier_sense, int, 0644); 113 module_param(vcs_type, int, 0644); 114 module_param(busy_thresh, int, 0644); 115 module_param(ht_enable, int, 0644); 116 module_param(cbw40_enable, int, 0644); 117 module_param(ampdu_enable, int, 0644); 118 module_param(rf_config, int, 0644); 119 module_param(power_mgnt, int, 0644); 120 module_param(low_power, int, 0644); 121 122 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 123 MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); 124 125 static int netdev_open(struct net_device *pnetdev); 126 static int netdev_close(struct net_device *pnetdev); 127 128 static void loadparam(struct _adapter *padapter, struct net_device *pnetdev) 129 { 130 struct registry_priv *registry_par = &padapter->registrypriv; 131 132 registry_par->chip_version = (u8)chip_version; 133 registry_par->rfintfs = (u8)rfintfs; 134 registry_par->lbkmode = (u8)lbkmode; 135 registry_par->hci = (u8)hci; 136 registry_par->network_mode = (u8)network_mode; 137 memcpy(registry_par->ssid.Ssid, "ANY", 3); 138 registry_par->ssid.SsidLength = 3; 139 registry_par->channel = (u8)channel; 140 registry_par->wireless_mode = (u8)wireless_mode; 141 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense; 142 registry_par->vcs_type = (u8)vcs_type; 143 registry_par->frag_thresh = (u16)frag_thresh; 144 registry_par->preamble = (u8)preamble; 145 registry_par->scan_mode = (u8)scan_mode; 146 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr; 147 registry_par->soft_ap = (u8)soft_ap; 148 registry_par->smart_ps = (u8)smart_ps; 149 registry_par->power_mgnt = (u8)power_mgnt; 150 registry_par->radio_enable = (u8)radio_enable; 151 registry_par->long_retry_lmt = (u8)long_retry_lmt; 152 registry_par->short_retry_lmt = (u8)short_retry_lmt; 153 registry_par->busy_thresh = (u16)busy_thresh; 154 registry_par->ack_policy = (u8)ack_policy; 155 registry_par->mp_mode = (u8)mp_mode; 156 registry_par->software_encrypt = (u8)software_encrypt; 157 registry_par->software_decrypt = (u8)software_decrypt; 158 /*UAPSD*/ 159 registry_par->wmm_enable = (u8)wmm_enable; 160 registry_par->uapsd_enable = (u8)uapsd_enable; 161 registry_par->uapsd_max_sp = (u8)uapsd_max_sp; 162 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en; 163 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en; 164 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en; 165 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en; 166 registry_par->ht_enable = (u8)ht_enable; 167 registry_par->cbw40_enable = (u8)cbw40_enable; 168 registry_par->ampdu_enable = (u8)ampdu_enable; 169 registry_par->rf_config = (u8)rf_config; 170 registry_par->low_power = (u8)low_power; 171 registry_par->wifi_test = (u8) wifi_test; 172 r8712_initmac = initmac; 173 } 174 175 static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p) 176 { 177 struct _adapter *padapter = netdev_priv(pnetdev); 178 struct sockaddr *addr = p; 179 180 if (!padapter->bup) 181 ether_addr_copy(pnetdev->dev_addr, addr->sa_data); 182 return 0; 183 } 184 185 static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev) 186 { 187 struct _adapter *padapter = netdev_priv(pnetdev); 188 struct xmit_priv *pxmitpriv = &(padapter->xmitpriv); 189 struct recv_priv *precvpriv = &(padapter->recvpriv); 190 191 padapter->stats.tx_packets = pxmitpriv->tx_pkts; 192 padapter->stats.rx_packets = precvpriv->rx_pkts; 193 padapter->stats.tx_dropped = pxmitpriv->tx_drop; 194 padapter->stats.rx_dropped = precvpriv->rx_drop; 195 padapter->stats.tx_bytes = pxmitpriv->tx_bytes; 196 padapter->stats.rx_bytes = precvpriv->rx_bytes; 197 return &padapter->stats; 198 } 199 200 static const struct net_device_ops rtl8712_netdev_ops = { 201 .ndo_open = netdev_open, 202 .ndo_stop = netdev_close, 203 .ndo_start_xmit = r8712_xmit_entry, 204 .ndo_set_mac_address = r871x_net_set_mac_address, 205 .ndo_get_stats = r871x_net_get_stats, 206 .ndo_do_ioctl = r871x_ioctl, 207 }; 208 209 struct net_device *r8712_init_netdev(void) 210 { 211 struct _adapter *padapter; 212 struct net_device *pnetdev; 213 214 pnetdev = alloc_etherdev(sizeof(struct _adapter)); 215 if (!pnetdev) 216 return NULL; 217 if (dev_alloc_name(pnetdev, ifname) < 0) { 218 strcpy(ifname, "wlan%d"); 219 dev_alloc_name(pnetdev, ifname); 220 } 221 padapter = netdev_priv(pnetdev); 222 padapter->pnetdev = pnetdev; 223 pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n"); 224 pnetdev->netdev_ops = &rtl8712_netdev_ops; 225 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */ 226 pnetdev->wireless_handlers = (struct iw_handler_def *) 227 &r871x_handlers_def; 228 loadparam(padapter, pnetdev); 229 netif_carrier_off(pnetdev); 230 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/ 231 return pnetdev; 232 } 233 234 static u32 start_drv_threads(struct _adapter *padapter) 235 { 236 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter, "%s", 237 padapter->pnetdev->name); 238 if (IS_ERR(padapter->cmdThread)) 239 return _FAIL; 240 return _SUCCESS; 241 } 242 243 void r8712_stop_drv_threads(struct _adapter *padapter) 244 { 245 /*Below is to terminate r8712_cmd_thread & event_thread...*/ 246 up(&padapter->cmdpriv.cmd_queue_sema); 247 if (padapter->cmdThread) 248 _down_sema(&padapter->cmdpriv.terminate_cmdthread_sema); 249 padapter->cmdpriv.cmd_seq = 1; 250 } 251 252 static void start_drv_timers(struct _adapter *padapter) 253 { 254 mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, 255 jiffies + msecs_to_jiffies(5000)); 256 mod_timer(&padapter->mlmepriv.wdg_timer, 257 jiffies + msecs_to_jiffies(2000)); 258 } 259 260 void r8712_stop_drv_timers(struct _adapter *padapter) 261 { 262 del_timer_sync(&padapter->mlmepriv.assoc_timer); 263 del_timer_sync(&padapter->securitypriv.tkip_timer); 264 del_timer_sync(&padapter->mlmepriv.scan_to_timer); 265 del_timer_sync(&padapter->mlmepriv.dhcp_timer); 266 del_timer_sync(&padapter->mlmepriv.wdg_timer); 267 del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer); 268 } 269 270 static u8 init_default_value(struct _adapter *padapter) 271 { 272 u8 ret = _SUCCESS; 273 struct registry_priv *pregistrypriv = &padapter->registrypriv; 274 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 275 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 276 struct security_priv *psecuritypriv = &padapter->securitypriv; 277 278 /*xmit_priv*/ 279 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; 280 pxmitpriv->vcs = pregistrypriv->vcs_type; 281 pxmitpriv->vcs_type = pregistrypriv->vcs_type; 282 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; 283 pxmitpriv->frag_len = pregistrypriv->frag_thresh; 284 /* mlme_priv */ 285 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ 286 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ 287 /*ht_priv*/ 288 { 289 int i; 290 struct ht_priv *phtpriv = &pmlmepriv->htpriv; 291 292 phtpriv->ampdu_enable = false;/*set to disabled*/ 293 for (i = 0; i < 16; i++) 294 phtpriv->baddbareq_issued[i] = false; 295 } 296 /*security_priv*/ 297 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; 298 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; 299 psecuritypriv->binstallGrpkey = _FAIL; 300 /*pwrctrl_priv*/ 301 /*registry_priv*/ 302 r8712_init_registrypriv_dev_network(padapter); 303 r8712_update_registrypriv_dev_network(padapter); 304 /*misc.*/ 305 return ret; 306 } 307 308 u8 r8712_init_drv_sw(struct _adapter *padapter) 309 { 310 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL) 311 return _FAIL; 312 padapter->cmdpriv.padapter = padapter; 313 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL) 314 return _FAIL; 315 if (r8712_init_mlme_priv(padapter) == _FAIL) 316 return _FAIL; 317 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); 318 _r8712_init_recv_priv(&padapter->recvpriv, padapter); 319 memset((unsigned char *)&padapter->securitypriv, 0, 320 sizeof(struct security_priv)); 321 setup_timer(&padapter->securitypriv.tkip_timer, 322 r8712_use_tkipkey_handler, (unsigned long)padapter); 323 _r8712_init_sta_priv(&padapter->stapriv); 324 padapter->stapriv.padapter = padapter; 325 r8712_init_bcmc_stainfo(padapter); 326 r8712_init_pwrctrl_priv(padapter); 327 mp871xinit(padapter); 328 if (init_default_value(padapter) != _SUCCESS) 329 return _FAIL; 330 r8712_InitSwLeds(padapter); 331 return _SUCCESS; 332 } 333 334 u8 r8712_free_drv_sw(struct _adapter *padapter) 335 { 336 struct net_device *pnetdev = padapter->pnetdev; 337 338 r8712_free_cmd_priv(&padapter->cmdpriv); 339 r8712_free_evt_priv(&padapter->evtpriv); 340 r8712_DeInitSwLeds(padapter); 341 r8712_free_mlme_priv(&padapter->mlmepriv); 342 r8712_free_io_queue(padapter); 343 _free_xmit_priv(&padapter->xmitpriv); 344 _r8712_free_sta_priv(&padapter->stapriv); 345 _r8712_free_recv_priv(&padapter->recvpriv); 346 mp871xdeinit(padapter); 347 if (pnetdev) 348 free_netdev(pnetdev); 349 return _SUCCESS; 350 } 351 352 353 static void enable_video_mode(struct _adapter *padapter, int cbw40_value) 354 { 355 /* bit 8: 356 * 1 -> enable video mode to 96B AP 357 * 0 -> disable video mode to 96B AP 358 * bit 9: 359 * 1 -> enable 40MHz mode 360 * 0 -> disable 40MHz mode 361 * bit 10: 362 * 1 -> enable STBC 363 * 0 -> disable STBC 364 */ 365 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ 366 367 if (cbw40_value) { 368 /* if the driver supports the 40M bandwidth, 369 * we can enable the bit 9. 370 */ 371 intcmd |= 0x200; 372 } 373 r8712_fw_cmd(padapter, intcmd); 374 } 375 376 /** 377 * 378 * This function intends to handle the activation of an interface 379 * i.e. when it is brought Up/Active from a Down state. 380 * 381 */ 382 static int netdev_open(struct net_device *pnetdev) 383 { 384 struct _adapter *padapter = netdev_priv(pnetdev); 385 386 mutex_lock(&padapter->mutex_start); 387 if (!padapter->bup) { 388 padapter->bDriverStopped = false; 389 padapter->bSurpriseRemoved = false; 390 padapter->bup = true; 391 if (rtl871x_hal_init(padapter) != _SUCCESS) 392 goto netdev_open_error; 393 if (r8712_initmac == NULL) 394 /* Use the mac address stored in the Efuse */ 395 memcpy(pnetdev->dev_addr, 396 padapter->eeprompriv.mac_addr, ETH_ALEN); 397 else { 398 /* We have to inform f/w to use user-supplied MAC 399 * address. 400 */ 401 msleep(200); 402 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr); 403 /* 404 * The "myid" function will get the wifi mac address 405 * from eeprompriv structure instead of netdev 406 * structure. So, we have to overwrite the mac_addr 407 * stored in the eeprompriv structure. In this case, 408 * the real mac address won't be used anymore. So that, 409 * the eeprompriv.mac_addr should store the mac which 410 * users specify. 411 */ 412 memcpy(padapter->eeprompriv.mac_addr, 413 pnetdev->dev_addr, ETH_ALEN); 414 } 415 if (start_drv_threads(padapter) != _SUCCESS) 416 goto netdev_open_error; 417 if (padapter->dvobjpriv.inirp_init == NULL) 418 goto netdev_open_error; 419 else 420 padapter->dvobjpriv.inirp_init(padapter); 421 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt, 422 padapter->registrypriv.smart_ps); 423 } 424 if (!netif_queue_stopped(pnetdev)) 425 netif_start_queue(pnetdev); 426 else 427 netif_wake_queue(pnetdev); 428 429 if (video_mode) 430 enable_video_mode(padapter, cbw40_enable); 431 /* start driver mlme relation timer */ 432 start_drv_timers(padapter); 433 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK); 434 mutex_unlock(&padapter->mutex_start); 435 return 0; 436 netdev_open_error: 437 padapter->bup = false; 438 netif_carrier_off(pnetdev); 439 netif_stop_queue(pnetdev); 440 mutex_unlock(&padapter->mutex_start); 441 return -1; 442 } 443 444 /** 445 * 446 * This function intends to handle the shutdown of an interface 447 * i.e. when it is brought Down from an Up/Active state. 448 * 449 */ 450 static int netdev_close(struct net_device *pnetdev) 451 { 452 struct _adapter *padapter = netdev_priv(pnetdev); 453 454 /* Close LED*/ 455 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF); 456 msleep(200); 457 458 /*s1.*/ 459 if (pnetdev) { 460 if (!netif_queue_stopped(pnetdev)) 461 netif_stop_queue(pnetdev); 462 } 463 /*s2.*/ 464 /*s2-1. issue disassoc_cmd to fw*/ 465 r8712_disassoc_cmd(padapter); 466 /*s2-2. indicate disconnect to os*/ 467 r8712_ind_disconnect(padapter); 468 /*s2-3.*/ 469 r8712_free_assoc_resources(padapter); 470 /*s2-4.*/ 471 r8712_free_network_queue(padapter); 472 return 0; 473 } 474 475 #include "mlme_osdep.h" 476