1 // SPDX-License-Identifier: GPL-2.0 2 /****************************************************************************** 3 * os_intfs.c 4 * 5 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. 6 * Linux device driver for RTL8192SU 7 * 8 * Modifications for inclusion into the Linux staging tree are 9 * Copyright(c) 2010 Larry Finger. All rights reserved. 10 * 11 * Contact information: 12 * WLAN FAE <wlanfae@realtek.com>. 13 * Larry Finger <Larry.Finger@lwfinger.net> 14 * 15 ******************************************************************************/ 16 17 #define _OS_INTFS_C_ 18 19 #include <linux/module.h> 20 #include <linux/kthread.h> 21 #include <linux/firmware.h> 22 #include "osdep_service.h" 23 #include "drv_types.h" 24 #include "xmit_osdep.h" 25 #include "recv_osdep.h" 26 #include "rtl871x_ioctl.h" 27 #include "usb_osintf.h" 28 29 MODULE_LICENSE("GPL"); 30 MODULE_DESCRIPTION("rtl871x wireless lan driver"); 31 MODULE_AUTHOR("Larry Finger"); 32 33 static char ifname[IFNAMSIZ] = "wlan%d"; 34 35 /* module param defaults */ 36 static int chip_version = RTL8712_2ndCUT; 37 static int rfintfs = HWPI; 38 static int lbkmode = RTL8712_AIR_TRX; 39 static int hci = RTL8712_USB; 40 static int ampdu_enable = 1;/*for enable tx_ampdu*/ 41 42 /* The video_mode variable is for video mode.*/ 43 /* It may be specify when inserting module with video_mode=1 parameter.*/ 44 static int video_mode = 1; /* enable video mode*/ 45 46 /*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ 47 static int network_mode = Ndis802_11IBSS; 48 static int channel = 1;/*ad-hoc support requirement*/ 49 static int wireless_mode = WIRELESS_11BG; 50 static int vrtl_carrier_sense = AUTO_VCS; 51 static int vcs_type = RTS_CTS; 52 static int frag_thresh = 2346; 53 static int preamble = PREAMBLE_LONG;/*long, short, auto*/ 54 static int scan_mode = 1;/*active, passive*/ 55 static int adhoc_tx_pwr = 1; 56 static int soft_ap; 57 static int smart_ps = 1; 58 static int power_mgnt = PS_MODE_ACTIVE; 59 static int radio_enable = 1; 60 static int long_retry_lmt = 7; 61 static int short_retry_lmt = 7; 62 static int busy_thresh = 40; 63 static int ack_policy = NORMAL_ACK; 64 static int mp_mode; 65 static int software_encrypt; 66 static int software_decrypt; 67 68 static int wmm_enable;/* default is set to disable the wmm.*/ 69 static int uapsd_enable; 70 static int uapsd_max_sp = NO_LIMIT; 71 static int uapsd_acbk_en; 72 static int uapsd_acbe_en; 73 static int uapsd_acvi_en; 74 static int uapsd_acvo_en; 75 76 static int ht_enable = 1; 77 static int cbw40_enable = 1; 78 static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ 79 static int low_power; 80 /* mac address to use instead of the one stored in Efuse */ 81 char *r8712_initmac; 82 static char *initmac; 83 /* if wifi_test = 1, driver will disable the turbo mode and pass it to 84 * firmware private. 85 */ 86 static int wifi_test; 87 88 module_param_string(ifname, ifname, sizeof(ifname), 0644); 89 module_param(wifi_test, int, 0644); 90 module_param(initmac, charp, 0644); 91 module_param(video_mode, int, 0644); 92 module_param(chip_version, int, 0644); 93 module_param(rfintfs, int, 0644); 94 module_param(lbkmode, int, 0644); 95 module_param(hci, int, 0644); 96 module_param(network_mode, int, 0644); 97 module_param(channel, int, 0644); 98 module_param(mp_mode, int, 0644); 99 module_param(wmm_enable, int, 0644); 100 module_param(vrtl_carrier_sense, int, 0644); 101 module_param(vcs_type, int, 0644); 102 module_param(busy_thresh, int, 0644); 103 module_param(ht_enable, int, 0644); 104 module_param(cbw40_enable, int, 0644); 105 module_param(ampdu_enable, int, 0644); 106 module_param(rf_config, int, 0644); 107 module_param(power_mgnt, int, 0644); 108 module_param(low_power, int, 0644); 109 110 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 111 MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); 112 113 static int netdev_open(struct net_device *pnetdev); 114 static int netdev_close(struct net_device *pnetdev); 115 116 static void loadparam(struct _adapter *padapter, struct net_device *pnetdev) 117 { 118 struct registry_priv *registry_par = &padapter->registrypriv; 119 120 registry_par->chip_version = (u8)chip_version; 121 registry_par->rfintfs = (u8)rfintfs; 122 registry_par->lbkmode = (u8)lbkmode; 123 registry_par->hci = (u8)hci; 124 registry_par->network_mode = (u8)network_mode; 125 memcpy(registry_par->ssid.Ssid, "ANY", 3); 126 registry_par->ssid.SsidLength = 3; 127 registry_par->channel = (u8)channel; 128 registry_par->wireless_mode = (u8)wireless_mode; 129 registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense; 130 registry_par->vcs_type = (u8)vcs_type; 131 registry_par->frag_thresh = (u16)frag_thresh; 132 registry_par->preamble = (u8)preamble; 133 registry_par->scan_mode = (u8)scan_mode; 134 registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr; 135 registry_par->soft_ap = (u8)soft_ap; 136 registry_par->smart_ps = (u8)smart_ps; 137 registry_par->power_mgnt = (u8)power_mgnt; 138 registry_par->radio_enable = (u8)radio_enable; 139 registry_par->long_retry_lmt = (u8)long_retry_lmt; 140 registry_par->short_retry_lmt = (u8)short_retry_lmt; 141 registry_par->busy_thresh = (u16)busy_thresh; 142 registry_par->ack_policy = (u8)ack_policy; 143 registry_par->mp_mode = (u8)mp_mode; 144 registry_par->software_encrypt = (u8)software_encrypt; 145 registry_par->software_decrypt = (u8)software_decrypt; 146 /*UAPSD*/ 147 registry_par->wmm_enable = (u8)wmm_enable; 148 registry_par->uapsd_enable = (u8)uapsd_enable; 149 registry_par->uapsd_max_sp = (u8)uapsd_max_sp; 150 registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en; 151 registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en; 152 registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en; 153 registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en; 154 registry_par->ht_enable = (u8)ht_enable; 155 registry_par->cbw40_enable = (u8)cbw40_enable; 156 registry_par->ampdu_enable = (u8)ampdu_enable; 157 registry_par->rf_config = (u8)rf_config; 158 registry_par->low_power = (u8)low_power; 159 registry_par->wifi_test = (u8)wifi_test; 160 r8712_initmac = initmac; 161 } 162 163 static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p) 164 { 165 struct _adapter *padapter = netdev_priv(pnetdev); 166 struct sockaddr *addr = p; 167 168 if (!padapter->bup) 169 eth_hw_addr_set(pnetdev, addr->sa_data); 170 return 0; 171 } 172 173 static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev) 174 { 175 struct _adapter *padapter = netdev_priv(pnetdev); 176 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 177 struct recv_priv *precvpriv = &padapter->recvpriv; 178 179 padapter->stats.tx_packets = pxmitpriv->tx_pkts; 180 padapter->stats.rx_packets = precvpriv->rx_pkts; 181 padapter->stats.tx_dropped = pxmitpriv->tx_drop; 182 padapter->stats.rx_dropped = precvpriv->rx_drop; 183 padapter->stats.tx_bytes = pxmitpriv->tx_bytes; 184 padapter->stats.rx_bytes = precvpriv->rx_bytes; 185 return &padapter->stats; 186 } 187 188 static const struct net_device_ops rtl8712_netdev_ops = { 189 .ndo_open = netdev_open, 190 .ndo_stop = netdev_close, 191 .ndo_start_xmit = r8712_xmit_entry, 192 .ndo_set_mac_address = r871x_net_set_mac_address, 193 .ndo_get_stats = r871x_net_get_stats, 194 .ndo_do_ioctl = r871x_ioctl, 195 }; 196 197 struct net_device *r8712_init_netdev(void) 198 { 199 struct _adapter *padapter; 200 struct net_device *pnetdev; 201 202 pnetdev = alloc_etherdev(sizeof(struct _adapter)); 203 if (!pnetdev) 204 return NULL; 205 if (dev_alloc_name(pnetdev, ifname) < 0) { 206 strscpy(ifname, "wlan%d", sizeof(ifname)); 207 dev_alloc_name(pnetdev, ifname); 208 } 209 padapter = netdev_priv(pnetdev); 210 padapter->pnetdev = pnetdev; 211 pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n"); 212 pnetdev->netdev_ops = &rtl8712_netdev_ops; 213 pnetdev->watchdog_timeo = HZ; /* 1 second timeout */ 214 pnetdev->wireless_handlers = (struct iw_handler_def *) 215 &r871x_handlers_def; 216 loadparam(padapter, pnetdev); 217 netif_carrier_off(pnetdev); 218 padapter->pid = 0; /* Initial the PID value used for HW PBC.*/ 219 return pnetdev; 220 } 221 222 static u32 start_drv_threads(struct _adapter *padapter) 223 { 224 padapter->cmd_thread = kthread_run(r8712_cmd_thread, padapter, "%s", 225 padapter->pnetdev->name); 226 if (IS_ERR(padapter->cmd_thread)) 227 return _FAIL; 228 return _SUCCESS; 229 } 230 231 void r8712_stop_drv_threads(struct _adapter *padapter) 232 { 233 struct completion *completion = 234 &padapter->cmdpriv.terminate_cmdthread_comp; 235 236 /*Below is to terminate r8712_cmd_thread & event_thread...*/ 237 complete(&padapter->cmdpriv.cmd_queue_comp); 238 if (padapter->cmd_thread) 239 wait_for_completion_interruptible(completion); 240 padapter->cmdpriv.cmd_seq = 1; 241 } 242 243 static void start_drv_timers(struct _adapter *padapter) 244 { 245 mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, 246 jiffies + msecs_to_jiffies(5000)); 247 mod_timer(&padapter->mlmepriv.wdg_timer, 248 jiffies + msecs_to_jiffies(2000)); 249 } 250 251 void r8712_stop_drv_timers(struct _adapter *padapter) 252 { 253 del_timer_sync(&padapter->mlmepriv.assoc_timer); 254 del_timer_sync(&padapter->securitypriv.tkip_timer); 255 del_timer_sync(&padapter->mlmepriv.scan_to_timer); 256 del_timer_sync(&padapter->mlmepriv.dhcp_timer); 257 del_timer_sync(&padapter->mlmepriv.wdg_timer); 258 del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer); 259 } 260 261 static void init_default_value(struct _adapter *padapter) 262 { 263 struct registry_priv *pregistrypriv = &padapter->registrypriv; 264 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 265 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 266 struct security_priv *psecuritypriv = &padapter->securitypriv; 267 268 /*xmit_priv*/ 269 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; 270 pxmitpriv->vcs = pregistrypriv->vcs_type; 271 pxmitpriv->vcs_type = pregistrypriv->vcs_type; 272 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; 273 pxmitpriv->frag_len = pregistrypriv->frag_thresh; 274 /* mlme_priv */ 275 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ 276 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ 277 /*ht_priv*/ 278 { 279 int i; 280 struct ht_priv *phtpriv = &pmlmepriv->htpriv; 281 282 phtpriv->ampdu_enable = false;/*set to disabled*/ 283 for (i = 0; i < 16; i++) 284 phtpriv->baddbareq_issued[i] = false; 285 } 286 /*security_priv*/ 287 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; 288 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; 289 psecuritypriv->binstallGrpkey = _FAIL; 290 /*pwrctrl_priv*/ 291 /*registry_priv*/ 292 r8712_init_registrypriv_dev_network(padapter); 293 r8712_update_registrypriv_dev_network(padapter); 294 /*misc.*/ 295 } 296 297 int r8712_init_drv_sw(struct _adapter *padapter) 298 { 299 int ret; 300 301 ret = r8712_init_cmd_priv(&padapter->cmdpriv); 302 if (ret) 303 return ret; 304 padapter->cmdpriv.padapter = padapter; 305 ret = r8712_init_evt_priv(&padapter->evtpriv); 306 if (ret) 307 return ret; 308 ret = r8712_init_mlme_priv(padapter); 309 if (ret) 310 return ret; 311 _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); 312 _r8712_init_recv_priv(&padapter->recvpriv, padapter); 313 memset((unsigned char *)&padapter->securitypriv, 0, 314 sizeof(struct security_priv)); 315 timer_setup(&padapter->securitypriv.tkip_timer, 316 r8712_use_tkipkey_handler, 0); 317 ret = _r8712_init_sta_priv(&padapter->stapriv); 318 if (ret) 319 return ret; 320 padapter->stapriv.padapter = padapter; 321 r8712_init_bcmc_stainfo(padapter); 322 r8712_init_pwrctrl_priv(padapter); 323 mp871xinit(padapter); 324 init_default_value(padapter); 325 r8712_InitSwLeds(padapter); 326 return ret; 327 } 328 329 void r8712_free_drv_sw(struct _adapter *padapter) 330 { 331 r8712_free_cmd_priv(&padapter->cmdpriv); 332 r8712_free_evt_priv(&padapter->evtpriv); 333 r8712_DeInitSwLeds(padapter); 334 r8712_free_mlme_priv(&padapter->mlmepriv); 335 _free_xmit_priv(&padapter->xmitpriv); 336 _r8712_free_sta_priv(&padapter->stapriv); 337 _r8712_free_recv_priv(&padapter->recvpriv); 338 mp871xdeinit(padapter); 339 } 340 341 static void enable_video_mode(struct _adapter *padapter, int cbw40_value) 342 { 343 /* bit 8: 344 * 1 -> enable video mode to 96B AP 345 * 0 -> disable video mode to 96B AP 346 * bit 9: 347 * 1 -> enable 40MHz mode 348 * 0 -> disable 40MHz mode 349 * bit 10: 350 * 1 -> enable STBC 351 * 0 -> disable STBC 352 */ 353 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ 354 355 if (cbw40_value) { 356 /* if the driver supports the 40M bandwidth, 357 * we can enable the bit 9. 358 */ 359 intcmd |= 0x200; 360 } 361 r8712_fw_cmd(padapter, intcmd); 362 } 363 364 /* 365 * 366 * This function intends to handle the activation of an interface 367 * i.e. when it is brought Up/Active from a Down state. 368 * 369 */ 370 static int netdev_open(struct net_device *pnetdev) 371 { 372 struct _adapter *padapter = netdev_priv(pnetdev); 373 374 mutex_lock(&padapter->mutex_start); 375 if (!padapter->bup) { 376 padapter->driver_stopped = false; 377 padapter->surprise_removed = false; 378 padapter->bup = true; 379 if (rtl871x_hal_init(padapter) != _SUCCESS) 380 goto netdev_open_error; 381 if (!r8712_initmac) { 382 /* Use the mac address stored in the Efuse */ 383 eth_hw_addr_set(pnetdev, 384 padapter->eeprompriv.mac_addr); 385 } else { 386 /* We have to inform f/w to use user-supplied MAC 387 * address. 388 */ 389 msleep(200); 390 r8712_setMacAddr_cmd(padapter, 391 (const u8 *)pnetdev->dev_addr); 392 /* 393 * The "myid" function will get the wifi mac address 394 * from eeprompriv structure instead of netdev 395 * structure. So, we have to overwrite the mac_addr 396 * stored in the eeprompriv structure. In this case, 397 * the real mac address won't be used anymore. So that, 398 * the eeprompriv.mac_addr should store the mac which 399 * users specify. 400 */ 401 memcpy(padapter->eeprompriv.mac_addr, 402 pnetdev->dev_addr, ETH_ALEN); 403 } 404 if (start_drv_threads(padapter) != _SUCCESS) 405 goto netdev_open_error; 406 if (!padapter->dvobjpriv.inirp_init) 407 goto netdev_open_error; 408 else 409 padapter->dvobjpriv.inirp_init(padapter); 410 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt, 411 padapter->registrypriv.smart_ps); 412 } 413 if (!netif_queue_stopped(pnetdev)) 414 netif_start_queue(pnetdev); 415 else 416 netif_wake_queue(pnetdev); 417 418 if (video_mode) 419 enable_video_mode(padapter, cbw40_enable); 420 /* start driver mlme relation timer */ 421 start_drv_timers(padapter); 422 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK); 423 mutex_unlock(&padapter->mutex_start); 424 return 0; 425 netdev_open_error: 426 padapter->bup = false; 427 netif_carrier_off(pnetdev); 428 netif_stop_queue(pnetdev); 429 mutex_unlock(&padapter->mutex_start); 430 return -1; 431 } 432 433 /* 434 * 435 * This function intends to handle the shutdown of an interface 436 * i.e. when it is brought Down from an Up/Active state. 437 * 438 */ 439 static int netdev_close(struct net_device *pnetdev) 440 { 441 struct _adapter *padapter = netdev_priv(pnetdev); 442 443 /* Close LED*/ 444 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF); 445 msleep(200); 446 447 /*s1.*/ 448 if (pnetdev) { 449 if (!netif_queue_stopped(pnetdev)) 450 netif_stop_queue(pnetdev); 451 } 452 /*s2.*/ 453 /*s2-1. issue disassoc_cmd to fw*/ 454 r8712_disassoc_cmd(padapter); 455 /*s2-2. indicate disconnect to os*/ 456 r8712_ind_disconnect(padapter); 457 /*s2-3.*/ 458 r8712_free_assoc_resources(padapter); 459 /*s2-4.*/ 460 r8712_free_network_queue(padapter); 461 return 0; 462 } 463 464 #include "mlme_osdep.h" 465