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/init.h> 33#include <linux/kthread.h> 34#include <linux/firmware.h> 35#include "osdep_service.h" 36#include "drv_types.h" 37#include "xmit_osdep.h" 38#include "recv_osdep.h" 39#include "rtl871x_ioctl.h" 40#include "usb_osintf.h" 41 42MODULE_LICENSE("GPL"); 43MODULE_DESCRIPTION("rtl871x wireless lan driver"); 44MODULE_AUTHOR("Larry Finger"); 45 46static char ifname[IFNAMSIZ] = "wlan%d"; 47 48/* module param defaults */ 49static int chip_version = RTL8712_2ndCUT; 50static int rfintfs = HWPI; 51static int lbkmode = RTL8712_AIR_TRX; 52static int hci = RTL8712_USB; 53static int ampdu_enable = 1;/*for enable tx_ampdu*/ 54 55/* The video_mode variable is for vedio mode.*/ 56/* It may be specify when inserting module with video_mode=1 parameter.*/ 57static int video_mode = 1; /* enable video mode*/ 58 59/*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ 60static int network_mode = Ndis802_11IBSS; 61static int channel = 1;/*ad-hoc support requirement*/ 62static int wireless_mode = WIRELESS_11BG; 63static int vrtl_carrier_sense = AUTO_VCS; 64static int vcs_type = RTS_CTS; 65static int frag_thresh = 2346; 66static int preamble = PREAMBLE_LONG;/*long, short, auto*/ 67static int scan_mode = 1;/*active, passive*/ 68static int adhoc_tx_pwr = 1; 69static int soft_ap; 70static int smart_ps = 1; 71static int power_mgnt = PS_MODE_ACTIVE; 72static int radio_enable = 1; 73static int long_retry_lmt = 7; 74static int short_retry_lmt = 7; 75static int busy_thresh = 40; 76static int ack_policy = NORMAL_ACK; 77static int mp_mode; 78static int software_encrypt; 79static int software_decrypt; 80 81static int wmm_enable;/* default is set to disable the wmm.*/ 82static int uapsd_enable; 83static int uapsd_max_sp = NO_LIMIT; 84static int uapsd_acbk_en; 85static int uapsd_acbe_en; 86static int uapsd_acvi_en; 87static int uapsd_acvo_en; 88 89static int ht_enable = 1; 90static int cbw40_enable = 1; 91static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ 92static int low_power; 93/* mac address to use instead of the one stored in Efuse */ 94char *r8712_initmac; 95static char *initmac; 96/* if wifi_test = 1, driver will disable the turbo mode and pass it to 97 * firmware private. 98 */ 99static int wifi_test = 0; 100 101module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR); 102module_param(wifi_test, int, 0644); 103module_param(initmac, charp, 0644); 104module_param(video_mode, int, 0644); 105module_param(chip_version, int, 0644); 106module_param(rfintfs, int, 0644); 107module_param(lbkmode, int, 0644); 108module_param(hci, int, 0644); 109module_param(network_mode, int, 0644); 110module_param(channel, int, 0644); 111module_param(mp_mode, int, 0644); 112module_param(wmm_enable, int, 0644); 113module_param(vrtl_carrier_sense, int, 0644); 114module_param(vcs_type, int, 0644); 115module_param(busy_thresh, int, 0644); 116module_param(ht_enable, int, 0644); 117module_param(cbw40_enable, int, 0644); 118module_param(ampdu_enable, int, 0644); 119module_param(rf_config, int, 0644); 120module_param(power_mgnt, int, 0644); 121module_param(low_power, int, 0644); 122 123MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 124MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); 125 126static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev); 127static int netdev_open(struct net_device *pnetdev); 128static int netdev_close(struct net_device *pnetdev); 129 130static uint loadparam(struct _adapter *padapter, struct net_device *pnetdev) 131{ 132 uint status = _SUCCESS; 133 struct registry_priv *registry_par = &padapter->registrypriv; 134 135 registry_par->chip_version = (u8)chip_version; 136 registry_par->rfintfs = (u8)rfintfs; 137 registry_par->lbkmode = (u8)lbkmode; 138 registry_par->hci = (u8)hci; 139 registry_par->network_mode = (u8)network_mode; 140 memcpy(registry_par->ssid.Ssid, "ANY", 3); 141 registry_par->ssid.SsidLength = 3; 142 registry_par->channel = (u8)channel; 143 registry_par->wireless_mode = (u8)wireless_mode; 144 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense ; 145 registry_par->vcs_type = (u8)vcs_type; 146 registry_par->frag_thresh = (u16)frag_thresh; 147 registry_par->preamble = (u8)preamble; 148 registry_par->scan_mode = (u8)scan_mode; 149 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr; 150 registry_par->soft_ap = (u8)soft_ap; 151 registry_par->smart_ps = (u8)smart_ps; 152 registry_par->power_mgnt = (u8)power_mgnt; 153 registry_par->radio_enable = (u8)radio_enable; 154 registry_par->long_retry_lmt = (u8)long_retry_lmt; 155 registry_par->short_retry_lmt = (u8)short_retry_lmt; 156 registry_par->busy_thresh = (u16)busy_thresh; 157 registry_par->ack_policy = (u8)ack_policy; 158 registry_par->mp_mode = (u8)mp_mode; 159 registry_par->software_encrypt = (u8)software_encrypt; 160 registry_par->software_decrypt = (u8)software_decrypt; 161 /*UAPSD*/ 162 registry_par->wmm_enable = (u8)wmm_enable; 163 registry_par->uapsd_enable = (u8)uapsd_enable; 164 registry_par->uapsd_max_sp = (u8)uapsd_max_sp; 165 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en; 166 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en; 167 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en; 168 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en; 169 registry_par->ht_enable = (u8)ht_enable; 170 registry_par->cbw40_enable = (u8)cbw40_enable; 171 registry_par->ampdu_enable = (u8)ampdu_enable; 172 registry_par->rf_config = (u8)rf_config; 173 registry_par->low_power = (u8)low_power; 174 registry_par->wifi_test = (u8) wifi_test; 175 r8712_initmac = initmac; 176 return status; 177} 178 179static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p) 180{ 181 struct _adapter *padapter = (struct _adapter *)netdev_priv(pnetdev); 182 struct sockaddr *addr = p; 183 184 if (padapter->bup == false) 185 memcpy(pnetdev->dev_addr, addr->sa_data, ETH_ALEN); 186 return 0; 187} 188 189static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev) 190{ 191 struct _adapter *padapter = (struct _adapter *) netdev_priv(pnetdev); 192 struct xmit_priv *pxmitpriv = &(padapter->xmitpriv); 193 struct recv_priv *precvpriv = &(padapter->recvpriv); 194 195 padapter->stats.tx_packets = pxmitpriv->tx_pkts; 196 padapter->stats.rx_packets = precvpriv->rx_pkts; 197 padapter->stats.tx_dropped = pxmitpriv->tx_drop; 198 padapter->stats.rx_dropped = precvpriv->rx_drop; 199 padapter->stats.tx_bytes = pxmitpriv->tx_bytes; 200 padapter->stats.rx_bytes = precvpriv->rx_bytes; 201 return &padapter->stats; 202} 203 204static const struct net_device_ops rtl8712_netdev_ops = { 205 .ndo_open = netdev_open, 206 .ndo_stop = netdev_close, 207 .ndo_start_xmit = r8712_xmit_entry, 208 .ndo_set_mac_address = r871x_net_set_mac_address, 209 .ndo_get_stats = r871x_net_get_stats, 210 .ndo_do_ioctl = r871x_ioctl, 211}; 212 213struct net_device *r8712_init_netdev(void) 214{ 215 struct _adapter *padapter; 216 struct net_device *pnetdev; 217 218 pnetdev = alloc_etherdev(sizeof(struct _adapter)); 219 if (!pnetdev) 220 return NULL; 221 if (dev_alloc_name(pnetdev, ifname) < 0) { 222 strcpy(ifname, "wlan%d"); 223 dev_alloc_name(pnetdev, ifname); 224 } 225 padapter = (struct _adapter *) netdev_priv(pnetdev); 226 padapter->pnetdev = pnetdev; 227 printk(KERN_INFO "r8712u: register rtl8712_netdev_ops to" 228 " netdev_ops\n"); 229 pnetdev->netdev_ops = &rtl8712_netdev_ops; 230 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */ 231 pnetdev->wireless_handlers = (struct iw_handler_def *) 232 &r871x_handlers_def; 233 /*step 2.*/ 234 loadparam(padapter, pnetdev); 235 netif_carrier_off(pnetdev); 236 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/ 237 return pnetdev; 238} 239 240static u32 start_drv_threads(struct _adapter *padapter) 241{ 242 padapter->cmdThread = kthread_run(r8712_cmd_thread, padapter, 243 padapter->pnetdev->name); 244 if (IS_ERR(padapter->cmdThread) < 0) 245 return _FAIL; 246 return _SUCCESS; 247} 248 249void r8712_stop_drv_threads(struct _adapter *padapter) 250{ 251 /*Below is to termindate r8712_cmd_thread & event_thread...*/ 252 up(&padapter->cmdpriv.cmd_queue_sema); 253 if (padapter->cmdThread) 254 _down_sema(&padapter->cmdpriv.terminate_cmdthread_sema); 255 padapter->cmdpriv.cmd_seq = 1; 256} 257 258static void start_drv_timers(struct _adapter *padapter) 259{ 260 _set_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, 261 5000); 262 _set_timer(&padapter->mlmepriv.wdg_timer, 2000); 263} 264 265void r8712_stop_drv_timers(struct _adapter *padapter) 266{ 267 _cancel_timer_ex(&padapter->mlmepriv.assoc_timer); 268 _cancel_timer_ex(&padapter->securitypriv.tkip_timer); 269 _cancel_timer_ex(&padapter->mlmepriv.scan_to_timer); 270 _cancel_timer_ex(&padapter->mlmepriv.dhcp_timer); 271 _cancel_timer_ex(&padapter->mlmepriv.wdg_timer); 272 _cancel_timer_ex(&padapter->mlmepriv.sitesurveyctrl. 273 sitesurvey_ctrl_timer); 274} 275 276static u8 init_default_value(struct _adapter *padapter) 277{ 278 u8 ret = _SUCCESS; 279 struct registry_priv *pregistrypriv = &padapter->registrypriv; 280 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 281 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 282 struct security_priv *psecuritypriv = &padapter->securitypriv; 283 284 /*xmit_priv*/ 285 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; 286 pxmitpriv->vcs = pregistrypriv->vcs_type; 287 pxmitpriv->vcs_type = pregistrypriv->vcs_type; 288 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; 289 pxmitpriv->frag_len = pregistrypriv->frag_thresh; 290 /* mlme_priv */ 291 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ 292 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ 293 /*ht_priv*/ 294 { 295 int i; 296 struct ht_priv *phtpriv = &pmlmepriv->htpriv; 297 298 phtpriv->ampdu_enable = false;/*set to disabled*/ 299 for (i = 0; i < 16; i++) 300 phtpriv->baddbareq_issued[i] = false; 301 } 302 /*security_priv*/ 303 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; 304 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; 305 psecuritypriv->binstallGrpkey = _FAIL; 306 /*pwrctrl_priv*/ 307 /*registry_priv*/ 308 r8712_init_registrypriv_dev_network(padapter); 309 r8712_update_registrypriv_dev_network(padapter); 310 /*misc.*/ 311 return ret; 312} 313 314u8 r8712_init_drv_sw(struct _adapter *padapter) 315{ 316 if ((r8712_init_cmd_priv(&padapter->cmdpriv)) == _FAIL) 317 return _FAIL; 318 padapter->cmdpriv.padapter = padapter; 319 if ((r8712_init_evt_priv(&padapter->evtpriv)) == _FAIL) 320 return _FAIL; 321 if (r8712_init_mlme_priv(padapter) == _FAIL) 322 return _FAIL; 323 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); 324 _r8712_init_recv_priv(&padapter->recvpriv, padapter); 325 memset((unsigned char *)&padapter->securitypriv, 0, 326 sizeof(struct security_priv)); 327 _init_timer(&(padapter->securitypriv.tkip_timer), padapter->pnetdev, 328 r8712_use_tkipkey_handler, padapter); 329 _r8712_init_sta_priv(&padapter->stapriv); 330 padapter->stapriv.padapter = padapter; 331 r8712_init_bcmc_stainfo(padapter); 332 r8712_init_pwrctrl_priv(padapter); 333 mp871xinit(padapter); 334 if (init_default_value(padapter) != _SUCCESS) 335 return _FAIL; 336 r8712_InitSwLeds(padapter); 337 return _SUCCESS; 338} 339 340u8 r8712_free_drv_sw(struct _adapter *padapter) 341{ 342 struct net_device *pnetdev = (struct net_device *)padapter->pnetdev; 343 344 r8712_free_cmd_priv(&padapter->cmdpriv); 345 r8712_free_evt_priv(&padapter->evtpriv); 346 r8712_DeInitSwLeds(padapter); 347 r8712_free_mlme_priv(&padapter->mlmepriv); 348 r8712_free_io_queue(padapter); 349 _free_xmit_priv(&padapter->xmitpriv); 350 if (padapter->fw_found) 351 _r8712_free_sta_priv(&padapter->stapriv); 352 _r8712_free_recv_priv(&padapter->recvpriv); 353 mp871xdeinit(padapter); 354 if (pnetdev) 355 free_netdev(pnetdev); 356 return _SUCCESS; 357} 358 359 360static void enable_video_mode(struct _adapter *padapter, int cbw40_value) 361{ 362 /* bit 8: 363 * 1 -> enable video mode to 96B AP 364 * 0 -> disable video mode to 96B AP 365 * bit 9: 366 * 1 -> enable 40MHz mode 367 * 0 -> disable 40MHz mode 368 * bit 10: 369 * 1 -> enable STBC 370 * 0 -> disable STBC 371 */ 372 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ 373 374 if (cbw40_value) { 375 /* if the driver supports the 40M bandwidth, 376 * we can enable the bit 9.*/ 377 intcmd |= 0x200; 378 } 379 r8712_fw_cmd(padapter, intcmd); 380} 381 382/** 383 * 384 * This function intends to handle the activation of an interface 385 * i.e. when it is brought Up/Active from a Down state. 386 * 387 */ 388static int netdev_open(struct net_device *pnetdev) 389{ 390 struct _adapter *padapter = (struct _adapter *)netdev_priv(pnetdev); 391 392 mutex_lock(&padapter->mutex_start); 393 if (padapter->bup == false) { 394 padapter->bDriverStopped = false; 395 padapter->bSurpriseRemoved = false; 396 padapter->bup = true; 397 if (rtl871x_hal_init(padapter) != _SUCCESS) 398 goto netdev_open_error; 399 if (r8712_initmac == NULL) 400 /* Use the mac address stored in the Efuse */ 401 memcpy(pnetdev->dev_addr, 402 padapter->eeprompriv.mac_addr, ETH_ALEN); 403 else { 404 /* We have to inform f/w to use user-supplied MAC 405 * address. 406 */ 407 msleep(200); 408 r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr); 409 /* 410 * The "myid" function will get the wifi mac address 411 * from eeprompriv structure instead of netdev 412 * structure. So, we have to overwrite the mac_addr 413 * stored in the eeprompriv structure. In this case, 414 * the real mac address won't be used anymore. So that, 415 * the eeprompriv.mac_addr should store the mac which 416 * users specify. 417 */ 418 memcpy(padapter->eeprompriv.mac_addr, 419 pnetdev->dev_addr, ETH_ALEN); 420 } 421 if (start_drv_threads(padapter) != _SUCCESS) 422 goto netdev_open_error; 423 if (padapter->dvobjpriv.inirp_init == NULL) 424 goto netdev_open_error; 425 else 426 padapter->dvobjpriv.inirp_init(padapter); 427 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt, 428 padapter->registrypriv.smart_ps); 429 } 430 if (!netif_queue_stopped(pnetdev)) 431 netif_start_queue(pnetdev); 432 else 433 netif_wake_queue(pnetdev); 434 435 if (video_mode) 436 enable_video_mode(padapter, cbw40_enable); 437 /* start driver mlme relation timer */ 438 start_drv_timers(padapter); 439 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK); 440 mutex_unlock(&padapter->mutex_start); 441 return 0; 442netdev_open_error: 443 padapter->bup = false; 444 netif_carrier_off(pnetdev); 445 netif_stop_queue(pnetdev); 446 mutex_unlock(&padapter->mutex_start); 447 return -1; 448} 449 450/** 451 * 452 * This function intends to handle the shutdown of an interface 453 * i.e. when it is brought Down from an Up/Active state. 454 * 455 */ 456static int netdev_close(struct net_device *pnetdev) 457{ 458 struct _adapter *padapter = (struct _adapter *) netdev_priv(pnetdev); 459 460 /* Close LED*/ 461 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF); 462 msleep(200); 463 464 /*s1.*/ 465 if (pnetdev) { 466 if (!netif_queue_stopped(pnetdev)) 467 netif_stop_queue(pnetdev); 468 } 469 /*s2.*/ 470 /*s2-1. issue disassoc_cmd to fw*/ 471 r8712_disassoc_cmd(padapter); 472 /*s2-2. indicate disconnect to os*/ 473 r8712_ind_disconnect(padapter); 474 /*s2-3.*/ 475 r8712_free_assoc_resources(padapter); 476 /*s2-4.*/ 477 r8712_free_network_queue(padapter); 478 return 0; 479} 480 481#include "mlme_osdep.h" 482