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 29MODULE_LICENSE("GPL"); 30MODULE_DESCRIPTION("rtl871x wireless lan driver"); 31MODULE_AUTHOR("Larry Finger"); 32 33static char ifname[IFNAMSIZ] = "wlan%d"; 34 35/* module param defaults */ 36static int chip_version = RTL8712_2ndCUT; 37static int rfintfs = HWPI; 38static int lbkmode = RTL8712_AIR_TRX; 39static int hci = RTL8712_USB; 40static 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.*/ 44static int video_mode = 1; /* enable video mode*/ 45 46/*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ 47static int network_mode = Ndis802_11IBSS; 48static int channel = 1;/*ad-hoc support requirement*/ 49static int wireless_mode = WIRELESS_11BG; 50static int vrtl_carrier_sense = AUTO_VCS; 51static int vcs_type = RTS_CTS; 52static int frag_thresh = 2346; 53static int preamble = PREAMBLE_LONG;/*long, short, auto*/ 54static int scan_mode = 1;/*active, passive*/ 55static int adhoc_tx_pwr = 1; 56static int soft_ap; 57static int smart_ps = 1; 58static int power_mgnt = PS_MODE_ACTIVE; 59static int radio_enable = 1; 60static int long_retry_lmt = 7; 61static int short_retry_lmt = 7; 62static int busy_thresh = 40; 63static int ack_policy = NORMAL_ACK; 64static int mp_mode; 65static int software_encrypt; 66static int software_decrypt; 67 68static int wmm_enable;/* default is set to disable the wmm.*/ 69static int uapsd_enable; 70static int uapsd_max_sp = NO_LIMIT; 71static int uapsd_acbk_en; 72static int uapsd_acbe_en; 73static int uapsd_acvi_en; 74static int uapsd_acvo_en; 75 76static int ht_enable = 1; 77static int cbw40_enable = 1; 78static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ 79static int low_power; 80/* mac address to use instead of the one stored in Efuse */ 81char *r8712_initmac; 82static char *initmac; 83/* if wifi_test = 1, driver will disable the turbo mode and pass it to 84 * firmware private. 85 */ 86static int wifi_test; 87 88module_param_string(ifname, ifname, sizeof(ifname), 0644); 89module_param(wifi_test, int, 0644); 90module_param(initmac, charp, 0644); 91module_param(video_mode, int, 0644); 92module_param(chip_version, int, 0644); 93module_param(rfintfs, int, 0644); 94module_param(lbkmode, int, 0644); 95module_param(hci, int, 0644); 96module_param(network_mode, int, 0644); 97module_param(channel, int, 0644); 98module_param(mp_mode, int, 0644); 99module_param(wmm_enable, int, 0644); 100module_param(vrtl_carrier_sense, int, 0644); 101module_param(vcs_type, int, 0644); 102module_param(busy_thresh, int, 0644); 103module_param(ht_enable, int, 0644); 104module_param(cbw40_enable, int, 0644); 105module_param(ampdu_enable, int, 0644); 106module_param(rf_config, int, 0644); 107module_param(power_mgnt, int, 0644); 108module_param(low_power, int, 0644); 109 110MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); 111MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); 112 113static int netdev_open(struct net_device *pnetdev); 114static int netdev_close(struct net_device *pnetdev); 115 116static 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 163static 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 173static 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 188static 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 197struct 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 222static u32 start_drv_threads(struct _adapter *padapter) 223{ 224 padapter->cmd_thread = kthread_run(r8712_cmd_thread, padapter, "%s", padapter->pnetdev->name); 225 if (IS_ERR(padapter->cmd_thread)) 226 return _FAIL; 227 return _SUCCESS; 228} 229 230void r8712_stop_drv_threads(struct _adapter *padapter) 231{ 232 struct completion *completion = 233 &padapter->cmdpriv.terminate_cmdthread_comp; 234 235 /*Below is to terminate r8712_cmd_thread & event_thread...*/ 236 complete(&padapter->cmdpriv.cmd_queue_comp); 237 if (padapter->cmd_thread) 238 wait_for_completion_interruptible(completion); 239 padapter->cmdpriv.cmd_seq = 1; 240} 241 242static void start_drv_timers(struct _adapter *padapter) 243{ 244 mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, 245 jiffies + msecs_to_jiffies(5000)); 246 mod_timer(&padapter->mlmepriv.wdg_timer, 247 jiffies + msecs_to_jiffies(2000)); 248} 249 250void r8712_stop_drv_timers(struct _adapter *padapter) 251{ 252 del_timer_sync(&padapter->mlmepriv.assoc_timer); 253 del_timer_sync(&padapter->securitypriv.tkip_timer); 254 del_timer_sync(&padapter->mlmepriv.scan_to_timer); 255 del_timer_sync(&padapter->mlmepriv.dhcp_timer); 256 del_timer_sync(&padapter->mlmepriv.wdg_timer); 257 del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer); 258} 259 260static void init_default_value(struct _adapter *padapter) 261{ 262 struct registry_priv *pregistrypriv = &padapter->registrypriv; 263 struct xmit_priv *pxmitpriv = &padapter->xmitpriv; 264 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 265 struct security_priv *psecuritypriv = &padapter->securitypriv; 266 267 /*xmit_priv*/ 268 pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; 269 pxmitpriv->vcs = pregistrypriv->vcs_type; 270 pxmitpriv->vcs_type = pregistrypriv->vcs_type; 271 pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; 272 pxmitpriv->frag_len = pregistrypriv->frag_thresh; 273 /* mlme_priv */ 274 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ 275 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ 276 /*ht_priv*/ 277 { 278 int i; 279 struct ht_priv *phtpriv = &pmlmepriv->htpriv; 280 281 phtpriv->ampdu_enable = false;/*set to disabled*/ 282 for (i = 0; i < 16; i++) 283 phtpriv->baddbareq_issued[i] = false; 284 } 285 /*security_priv*/ 286 psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; 287 psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; 288 psecuritypriv->binstallGrpkey = _FAIL; 289 /*pwrctrl_priv*/ 290 /*registry_priv*/ 291 r8712_init_registrypriv_dev_network(padapter); 292 r8712_update_registrypriv_dev_network(padapter); 293 /*misc.*/ 294} 295 296int r8712_init_drv_sw(struct _adapter *padapter) 297{ 298 int ret; 299 300 ret = r8712_init_cmd_priv(&padapter->cmdpriv); 301 if (ret) 302 return ret; 303 padapter->cmdpriv.padapter = padapter; 304 ret = r8712_init_evt_priv(&padapter->evtpriv); 305 if (ret) 306 goto free_cmd; 307 ret = r8712_init_mlme_priv(padapter); 308 if (ret) 309 goto free_evt; 310 ret = _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); 311 if (ret) 312 goto free_mlme; 313 ret = _r8712_init_recv_priv(&padapter->recvpriv, padapter); 314 if (ret) 315 goto free_xmit; 316 memset((unsigned char *)&padapter->securitypriv, 0, 317 sizeof(struct security_priv)); 318 timer_setup(&padapter->securitypriv.tkip_timer, 319 r8712_use_tkipkey_handler, 0); 320 ret = _r8712_init_sta_priv(&padapter->stapriv); 321 if (ret) 322 goto free_recv; 323 padapter->stapriv.padapter = padapter; 324 r8712_init_bcmc_stainfo(padapter); 325 r8712_init_pwrctrl_priv(padapter); 326 mp871xinit(padapter); 327 init_default_value(padapter); 328 r8712_InitSwLeds(padapter); 329 mutex_init(&padapter->mutex_start); 330 331 return 0; 332 333free_recv: 334 _r8712_free_recv_priv(&padapter->recvpriv); 335free_xmit: 336 _free_xmit_priv(&padapter->xmitpriv); 337free_mlme: 338 r8712_free_mlme_priv(&padapter->mlmepriv); 339free_evt: 340 r8712_free_evt_priv(&padapter->evtpriv); 341free_cmd: 342 r8712_free_cmd_priv(&padapter->cmdpriv); 343 return ret; 344} 345 346void r8712_free_drv_sw(struct _adapter *padapter) 347{ 348 r8712_free_cmd_priv(&padapter->cmdpriv); 349 r8712_free_evt_priv(&padapter->evtpriv); 350 r8712_DeInitSwLeds(padapter); 351 r8712_free_mlme_priv(&padapter->mlmepriv); 352 _free_xmit_priv(&padapter->xmitpriv); 353 _r8712_free_sta_priv(&padapter->stapriv); 354 _r8712_free_recv_priv(&padapter->recvpriv); 355 mp871xdeinit(padapter); 356} 357 358static void enable_video_mode(struct _adapter *padapter, int cbw40_value) 359{ 360 /* bit 8: 361 * 1 -> enable video mode to 96B AP 362 * 0 -> disable video mode to 96B AP 363 * bit 9: 364 * 1 -> enable 40MHz mode 365 * 0 -> disable 40MHz mode 366 * bit 10: 367 * 1 -> enable STBC 368 * 0 -> disable STBC 369 */ 370 u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ 371 372 if (cbw40_value) { 373 /* if the driver supports the 40M bandwidth, 374 * we can enable the bit 9. 375 */ 376 intcmd |= 0x200; 377 } 378 r8712_fw_cmd(padapter, intcmd); 379} 380 381/* 382 * 383 * This function intends to handle the activation of an interface 384 * i.e. when it is brought Up/Active from a Down state. 385 * 386 */ 387static int netdev_open(struct net_device *pnetdev) 388{ 389 struct _adapter *padapter = netdev_priv(pnetdev); 390 391 mutex_lock(&padapter->mutex_start); 392 if (!padapter->bup) { 393 padapter->driver_stopped = false; 394 padapter->surprise_removed = false; 395 padapter->bup = true; 396 if (rtl871x_hal_init(padapter) != _SUCCESS) 397 goto netdev_open_error; 398 if (!r8712_initmac) { 399 /* Use the mac address stored in the Efuse */ 400 eth_hw_addr_set(pnetdev, 401 padapter->eeprompriv.mac_addr); 402 } else { 403 /* We have to inform f/w to use user-supplied MAC 404 * address. 405 */ 406 msleep(200); 407 r8712_setMacAddr_cmd(padapter, 408 (const 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) 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 = 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