// SPDX-License-Identifier: GPL-2.0 /****************************************************************************** * os_intfs.c * * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. * Linux device driver for RTL8192SU * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * * Contact information: * WLAN FAE . * Larry Finger * ******************************************************************************/ #define _OS_INTFS_C_ #include #include #include #include "osdep_service.h" #include "drv_types.h" #include "xmit_osdep.h" #include "recv_osdep.h" #include "rtl871x_ioctl.h" #include "usb_osintf.h" MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("rtl871x wireless lan driver"); MODULE_AUTHOR("Larry Finger"); static char ifname[IFNAMSIZ] = "wlan%d"; /* module param defaults */ static int chip_version = RTL8712_2ndCUT; static int rfintfs = HWPI; static int lbkmode = RTL8712_AIR_TRX; static int hci = RTL8712_USB; static int ampdu_enable = 1;/*for enable tx_ampdu*/ /* The video_mode variable is for video mode.*/ /* It may be specify when inserting module with video_mode=1 parameter.*/ static int video_mode = 1; /* enable video mode*/ /*Ndis802_11Infrastructure; infra, ad-hoc, auto*/ static int network_mode = Ndis802_11IBSS; static int channel = 1;/*ad-hoc support requirement*/ static int wireless_mode = WIRELESS_11BG; static int vrtl_carrier_sense = AUTO_VCS; static int vcs_type = RTS_CTS; static int frag_thresh = 2346; static int preamble = PREAMBLE_LONG;/*long, short, auto*/ static int scan_mode = 1;/*active, passive*/ static int adhoc_tx_pwr = 1; static int soft_ap; static int smart_ps = 1; static int power_mgnt = PS_MODE_ACTIVE; static int radio_enable = 1; static int long_retry_lmt = 7; static int short_retry_lmt = 7; static int busy_thresh = 40; static int ack_policy = NORMAL_ACK; static int mp_mode; static int software_encrypt; static int software_decrypt; static int wmm_enable;/* default is set to disable the wmm.*/ static int uapsd_enable; static int uapsd_max_sp = NO_LIMIT; static int uapsd_acbk_en; static int uapsd_acbe_en; static int uapsd_acvi_en; static int uapsd_acvo_en; static int ht_enable = 1; static int cbw40_enable = 1; static int rf_config = RTL8712_RF_1T2R; /* 1T2R*/ static int low_power; /* mac address to use instead of the one stored in Efuse */ char *r8712_initmac; static char *initmac; /* if wifi_test = 1, driver will disable the turbo mode and pass it to * firmware private. */ static int wifi_test; module_param_string(ifname, ifname, sizeof(ifname), 0644); module_param(wifi_test, int, 0644); module_param(initmac, charp, 0644); module_param(video_mode, int, 0644); module_param(chip_version, int, 0644); module_param(rfintfs, int, 0644); module_param(lbkmode, int, 0644); module_param(hci, int, 0644); module_param(network_mode, int, 0644); module_param(channel, int, 0644); module_param(mp_mode, int, 0644); module_param(wmm_enable, int, 0644); module_param(vrtl_carrier_sense, int, 0644); module_param(vcs_type, int, 0644); module_param(busy_thresh, int, 0644); module_param(ht_enable, int, 0644); module_param(cbw40_enable, int, 0644); module_param(ampdu_enable, int, 0644); module_param(rf_config, int, 0644); module_param(power_mgnt, int, 0644); module_param(low_power, int, 0644); MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); MODULE_PARM_DESC(initmac, "MAC-Address, default: use FUSE"); static int netdev_open(struct net_device *pnetdev); static int netdev_close(struct net_device *pnetdev); static void loadparam(struct _adapter *padapter, struct net_device *pnetdev) { struct registry_priv *registry_par = &padapter->registrypriv; registry_par->chip_version = (u8)chip_version; registry_par->rfintfs = (u8)rfintfs; registry_par->lbkmode = (u8)lbkmode; registry_par->hci = (u8)hci; registry_par->network_mode = (u8)network_mode; memcpy(registry_par->ssid.Ssid, "ANY", 3); registry_par->ssid.SsidLength = 3; registry_par->channel = (u8)channel; registry_par->wireless_mode = (u8)wireless_mode; registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense; registry_par->vcs_type = (u8)vcs_type; registry_par->frag_thresh = (u16)frag_thresh; registry_par->preamble = (u8)preamble; registry_par->scan_mode = (u8)scan_mode; registry_par->adhoc_tx_pwr = (u8)adhoc_tx_pwr; registry_par->soft_ap = (u8)soft_ap; registry_par->smart_ps = (u8)smart_ps; registry_par->power_mgnt = (u8)power_mgnt; registry_par->radio_enable = (u8)radio_enable; registry_par->long_retry_lmt = (u8)long_retry_lmt; registry_par->short_retry_lmt = (u8)short_retry_lmt; registry_par->busy_thresh = (u16)busy_thresh; registry_par->ack_policy = (u8)ack_policy; registry_par->mp_mode = (u8)mp_mode; registry_par->software_encrypt = (u8)software_encrypt; registry_par->software_decrypt = (u8)software_decrypt; /*UAPSD*/ registry_par->wmm_enable = (u8)wmm_enable; registry_par->uapsd_enable = (u8)uapsd_enable; registry_par->uapsd_max_sp = (u8)uapsd_max_sp; registry_par->uapsd_acbk_en = (u8)uapsd_acbk_en; registry_par->uapsd_acbe_en = (u8)uapsd_acbe_en; registry_par->uapsd_acvi_en = (u8)uapsd_acvi_en; registry_par->uapsd_acvo_en = (u8)uapsd_acvo_en; registry_par->ht_enable = (u8)ht_enable; registry_par->cbw40_enable = (u8)cbw40_enable; registry_par->ampdu_enable = (u8)ampdu_enable; registry_par->rf_config = (u8)rf_config; registry_par->low_power = (u8)low_power; registry_par->wifi_test = (u8)wifi_test; r8712_initmac = initmac; } static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p) { struct _adapter *padapter = netdev_priv(pnetdev); struct sockaddr *addr = p; if (!padapter->bup) ether_addr_copy(pnetdev->dev_addr, addr->sa_data); return 0; } static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev) { struct _adapter *padapter = netdev_priv(pnetdev); struct xmit_priv *pxmitpriv = &padapter->xmitpriv; struct recv_priv *precvpriv = &padapter->recvpriv; padapter->stats.tx_packets = pxmitpriv->tx_pkts; padapter->stats.rx_packets = precvpriv->rx_pkts; padapter->stats.tx_dropped = pxmitpriv->tx_drop; padapter->stats.rx_dropped = precvpriv->rx_drop; padapter->stats.tx_bytes = pxmitpriv->tx_bytes; padapter->stats.rx_bytes = precvpriv->rx_bytes; return &padapter->stats; } static const struct net_device_ops rtl8712_netdev_ops = { .ndo_open = netdev_open, .ndo_stop = netdev_close, .ndo_start_xmit = r8712_xmit_entry, .ndo_set_mac_address = r871x_net_set_mac_address, .ndo_get_stats = r871x_net_get_stats, .ndo_do_ioctl = r871x_ioctl, }; struct net_device *r8712_init_netdev(void) { struct _adapter *padapter; struct net_device *pnetdev; pnetdev = alloc_etherdev(sizeof(struct _adapter)); if (!pnetdev) return NULL; if (dev_alloc_name(pnetdev, ifname) < 0) { strscpy(ifname, "wlan%d", sizeof(ifname)); dev_alloc_name(pnetdev, ifname); } padapter = netdev_priv(pnetdev); padapter->pnetdev = pnetdev; pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n"); pnetdev->netdev_ops = &rtl8712_netdev_ops; pnetdev->watchdog_timeo = HZ; /* 1 second timeout */ pnetdev->wireless_handlers = (struct iw_handler_def *) &r871x_handlers_def; loadparam(padapter, pnetdev); netif_carrier_off(pnetdev); padapter->pid = 0; /* Initial the PID value used for HW PBC.*/ return pnetdev; } static u32 start_drv_threads(struct _adapter *padapter) { padapter->cmd_thread = kthread_run(r8712_cmd_thread, padapter, "%s", padapter->pnetdev->name); if (IS_ERR(padapter->cmd_thread)) return _FAIL; return _SUCCESS; } void r8712_stop_drv_threads(struct _adapter *padapter) { struct completion *completion = &padapter->cmdpriv.terminate_cmdthread_comp; /*Below is to terminate r8712_cmd_thread & event_thread...*/ complete(&padapter->cmdpriv.cmd_queue_comp); if (padapter->cmd_thread) wait_for_completion_interruptible(completion); padapter->cmdpriv.cmd_seq = 1; } static void start_drv_timers(struct _adapter *padapter) { mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer, jiffies + msecs_to_jiffies(5000)); mod_timer(&padapter->mlmepriv.wdg_timer, jiffies + msecs_to_jiffies(2000)); } void r8712_stop_drv_timers(struct _adapter *padapter) { del_timer_sync(&padapter->mlmepriv.assoc_timer); del_timer_sync(&padapter->securitypriv.tkip_timer); del_timer_sync(&padapter->mlmepriv.scan_to_timer); del_timer_sync(&padapter->mlmepriv.dhcp_timer); del_timer_sync(&padapter->mlmepriv.wdg_timer); del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer); } static void init_default_value(struct _adapter *padapter) { struct registry_priv *pregistrypriv = &padapter->registrypriv; struct xmit_priv *pxmitpriv = &padapter->xmitpriv; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; struct security_priv *psecuritypriv = &padapter->securitypriv; /*xmit_priv*/ pxmitpriv->vcs_setting = pregistrypriv->vrtl_carrier_sense; pxmitpriv->vcs = pregistrypriv->vcs_type; pxmitpriv->vcs_type = pregistrypriv->vcs_type; pxmitpriv->rts_thresh = pregistrypriv->rts_thresh; pxmitpriv->frag_len = pregistrypriv->frag_thresh; /* mlme_priv */ /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/ pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */ /*ht_priv*/ { int i; struct ht_priv *phtpriv = &pmlmepriv->htpriv; phtpriv->ampdu_enable = false;/*set to disabled*/ for (i = 0; i < 16; i++) phtpriv->baddbareq_issued[i] = false; } /*security_priv*/ psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt; psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt; psecuritypriv->binstallGrpkey = _FAIL; /*pwrctrl_priv*/ /*registry_priv*/ r8712_init_registrypriv_dev_network(padapter); r8712_update_registrypriv_dev_network(padapter); /*misc.*/ } int r8712_init_drv_sw(struct _adapter *padapter) { int ret; ret = r8712_init_cmd_priv(&padapter->cmdpriv); if (ret) return ret; padapter->cmdpriv.padapter = padapter; ret = r8712_init_evt_priv(&padapter->evtpriv); if (ret) return ret; ret = r8712_init_mlme_priv(padapter); if (ret) return ret; _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); _r8712_init_recv_priv(&padapter->recvpriv, padapter); memset((unsigned char *)&padapter->securitypriv, 0, sizeof(struct security_priv)); timer_setup(&padapter->securitypriv.tkip_timer, r8712_use_tkipkey_handler, 0); ret = _r8712_init_sta_priv(&padapter->stapriv); if (ret) return ret; padapter->stapriv.padapter = padapter; r8712_init_bcmc_stainfo(padapter); r8712_init_pwrctrl_priv(padapter); mp871xinit(padapter); init_default_value(padapter); r8712_InitSwLeds(padapter); mutex_init(&padapter->mutex_start); return ret; } void r8712_free_drv_sw(struct _adapter *padapter) { r8712_free_cmd_priv(&padapter->cmdpriv); r8712_free_evt_priv(&padapter->evtpriv); r8712_DeInitSwLeds(padapter); r8712_free_mlme_priv(&padapter->mlmepriv); _free_xmit_priv(&padapter->xmitpriv); _r8712_free_sta_priv(&padapter->stapriv); _r8712_free_recv_priv(&padapter->recvpriv); mp871xdeinit(padapter); } static void enable_video_mode(struct _adapter *padapter, int cbw40_value) { /* bit 8: * 1 -> enable video mode to 96B AP * 0 -> disable video mode to 96B AP * bit 9: * 1 -> enable 40MHz mode * 0 -> disable 40MHz mode * bit 10: * 1 -> enable STBC * 0 -> disable STBC */ u32 intcmd = 0xf4000500; /* enable bit8, bit10*/ if (cbw40_value) { /* if the driver supports the 40M bandwidth, * we can enable the bit 9. */ intcmd |= 0x200; } r8712_fw_cmd(padapter, intcmd); } /* * * This function intends to handle the activation of an interface * i.e. when it is brought Up/Active from a Down state. * */ static int netdev_open(struct net_device *pnetdev) { struct _adapter *padapter = netdev_priv(pnetdev); mutex_lock(&padapter->mutex_start); if (!padapter->bup) { padapter->driver_stopped = false; padapter->surprise_removed = false; padapter->bup = true; if (rtl871x_hal_init(padapter) != _SUCCESS) goto netdev_open_error; if (!r8712_initmac) { /* Use the mac address stored in the Efuse */ memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN); } else { /* We have to inform f/w to use user-supplied MAC * address. */ msleep(200); r8712_setMacAddr_cmd(padapter, (u8 *)pnetdev->dev_addr); /* * The "myid" function will get the wifi mac address * from eeprompriv structure instead of netdev * structure. So, we have to overwrite the mac_addr * stored in the eeprompriv structure. In this case, * the real mac address won't be used anymore. So that, * the eeprompriv.mac_addr should store the mac which * users specify. */ memcpy(padapter->eeprompriv.mac_addr, pnetdev->dev_addr, ETH_ALEN); } if (start_drv_threads(padapter) != _SUCCESS) goto netdev_open_error; if (!padapter->dvobjpriv.inirp_init) goto netdev_open_error; else padapter->dvobjpriv.inirp_init(padapter); r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt, padapter->registrypriv.smart_ps); } if (!netif_queue_stopped(pnetdev)) netif_start_queue(pnetdev); else netif_wake_queue(pnetdev); if (video_mode) enable_video_mode(padapter, cbw40_enable); /* start driver mlme relation timer */ start_drv_timers(padapter); padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK); mutex_unlock(&padapter->mutex_start); return 0; netdev_open_error: padapter->bup = false; netif_carrier_off(pnetdev); netif_stop_queue(pnetdev); mutex_unlock(&padapter->mutex_start); return -1; } /* * * This function intends to handle the shutdown of an interface * i.e. when it is brought Down from an Up/Active state. * */ static int netdev_close(struct net_device *pnetdev) { struct _adapter *padapter = netdev_priv(pnetdev); /* Close LED*/ padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF); msleep(200); /*s1.*/ if (pnetdev) { if (!netif_queue_stopped(pnetdev)) netif_stop_queue(pnetdev); } /*s2.*/ /*s2-1. issue disassoc_cmd to fw*/ r8712_disassoc_cmd(padapter); /*s2-2. indicate disconnect to os*/ r8712_ind_disconnect(padapter); /*s2-3.*/ r8712_free_assoc_resources(padapter); /*s2-4.*/ r8712_free_network_queue(padapter); return 0; } #include "mlme_osdep.h"