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