// SPDX-License-Identifier: GPL-2.0 /****************************************************************************** * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. * Linux device driver for RTL8192U * * Based on the r8187 driver, which is: * Copyright 2004-2005 Andrea Merello , et al. * * Contact Information: * Jerry chuang */ #ifndef CONFIG_FORCE_HARD_FLOAT double __floatsidf(int i) { return i; } unsigned int __fixunsdfsi(double d) { return d; } double __adddf3(double a, double b) { return a + b; } double __addsf3(float a, float b) { return a + b; } double __subdf3(double a, double b) { return a - b; } double __extendsfdf2(float a) { return a; } #endif #define CONFIG_RTL8192_IO_MAP #include #include "r8192U_hw.h" #include "r8192U.h" #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */ #include "r8180_93cx6.h" /* Card EEPROM */ #include "r8192U_wx.h" #include "r819xU_phy.h" #include "r819xU_phyreg.h" #include "r819xU_cmdpkt.h" #include "r8192U_dm.h" #include #include #include #include /* FIXME: check if 2.6.7 is ok */ #include "dot11d.h" /* set here to open your trace code. */ u32 rt_global_debug_component = COMP_DOWN | COMP_SEC | COMP_ERR; /* always open err flags on */ #define TOTAL_CAM_ENTRY 32 #define CAM_CONTENT_COUNT 8 static const struct usb_device_id rtl8192_usb_id_tbl[] = { /* Realtek */ {USB_DEVICE(0x0bda, 0x8709)}, /* Corega */ {USB_DEVICE(0x07aa, 0x0043)}, /* Belkin */ {USB_DEVICE(0x050d, 0x805E)}, /* Sitecom */ {USB_DEVICE(0x0df6, 0x0031)}, /* EnGenius */ {USB_DEVICE(0x1740, 0x9201)}, /* Dlink */ {USB_DEVICE(0x2001, 0x3301)}, /* Zinwell */ {USB_DEVICE(0x5a57, 0x0290)}, /* LG */ {USB_DEVICE(0x043e, 0x7a01)}, {} }; MODULE_LICENSE("GPL"); MODULE_VERSION("V 1.1"); MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl); MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards"); static char *ifname = "wlan%d"; static int hwwep = 1; /* default use hw. set 0 to use software security */ static int channels = 0x3fff; module_param(ifname, charp, 0644); module_param(hwwep, int, 0644); module_param(channels, int, 0644); MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); MODULE_PARM_DESC(hwwep, " Try to use hardware security support. "); MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI"); static int rtl8192_usb_probe(struct usb_interface *intf, const struct usb_device_id *id); static void rtl8192_usb_disconnect(struct usb_interface *intf); static struct usb_driver rtl8192_usb_driver = { .name = RTL819XU_MODULE_NAME, /* Driver name */ .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */ .probe = rtl8192_usb_probe, /* probe fn */ .disconnect = rtl8192_usb_disconnect, /* remove fn */ .suspend = NULL, /* PM suspend fn */ .resume = NULL, /* PM resume fn */ }; struct CHANNEL_LIST { u8 Channel[32]; u8 Len; }; static struct CHANNEL_LIST ChannelPlan[] = { /* FCC */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24}, /* IC */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, /* ETSI */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, /* Spain. Change to ETSI. */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, /* France. Change to ETSI. */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, /* MKK */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, /* MKK1 */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, /* Israel. */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, /* For 11a , TELEC */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, /* MIC */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, /* For Global Domain. 1-11:active scan, 12-14 passive scan. */ {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14} }; static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv) { int i, max_chan = -1, min_chan = -1; struct ieee80211_device *ieee = priv->ieee80211; switch (channel_plan) { case COUNTRY_CODE_FCC: case COUNTRY_CODE_IC: case COUNTRY_CODE_ETSI: case COUNTRY_CODE_SPAIN: case COUNTRY_CODE_FRANCE: case COUNTRY_CODE_MKK: case COUNTRY_CODE_MKK1: case COUNTRY_CODE_ISRAEL: case COUNTRY_CODE_TELEC: case COUNTRY_CODE_MIC: rtl8192u_dot11d_init(ieee); ieee->bGlobalDomain = false; /* actually 8225 & 8256 rf chips only support B,G,24N mode */ if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) { min_chan = 1; max_chan = 14; } else { RT_TRACE(COMP_ERR, "unknown rf chip, can't set channel map in function:%s()\n", __func__); } if (ChannelPlan[channel_plan].Len != 0) { /* Clear old channel map */ memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map)); /* Set new channel map */ for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) break; GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; } } break; case COUNTRY_CODE_GLOBAL_DOMAIN: /* this flag enabled to follow 11d country IE setting, * otherwise, it shall follow global domain settings. */ GET_DOT11D_INFO(ieee)->dot11d_enabled = 0; dot11d_reset(ieee); ieee->bGlobalDomain = true; break; default: break; } } static void CamResetAllEntry(struct net_device *dev) { u32 ulcommand = 0; /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA * associate to AP. However, ResetKey is called on * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this * condition, Cam can not be reset because upper layer will not set * this static key again. */ ulcommand |= BIT(31) | BIT(30); write_nic_dword(dev, RWCAM, ulcommand); } int write_nic_byte_E(struct net_device *dev, int indx, u8 data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); if (!usbdata) return -ENOMEM; *usbdata = data; status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, indx | 0xfe00, 0, usbdata, 1, HZ / 2); kfree(usbdata); if (status < 0) { netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); return status; } return 0; } int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); if (!usbdata) return -ENOMEM; status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, indx | 0xfe00, 0, usbdata, 1, HZ / 2); *data = *usbdata; kfree(usbdata); if (status < 0) { netdev_err(dev, "%s failure status: %d\n", __func__, status); return status; } return 0; } /* as 92U has extend page from 4 to 16, so modify functions below. */ int write_nic_byte(struct net_device *dev, int indx, u8 data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); if (!usbdata) return -ENOMEM; *usbdata = data; status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 1, HZ / 2); kfree(usbdata); if (status < 0) { netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); return status; } return 0; } int write_nic_word(struct net_device *dev, int indx, u16 data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); if (!usbdata) return -ENOMEM; *usbdata = data; status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 2, HZ / 2); kfree(usbdata); if (status < 0) { netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); return status; } return 0; } int write_nic_dword(struct net_device *dev, int indx, u32 data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); if (!usbdata) return -ENOMEM; *usbdata = data; status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 4, HZ / 2); kfree(usbdata); if (status < 0) { netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); return status; } return 0; } int read_nic_byte(struct net_device *dev, int indx, u8 *data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); if (!usbdata) return -ENOMEM; status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 1, HZ / 2); *data = *usbdata; kfree(usbdata); if (status < 0) { netdev_err(dev, "%s failure status: %d\n", __func__, status); return status; } return 0; } int read_nic_word(struct net_device *dev, int indx, u16 *data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); if (!usbdata) return -ENOMEM; status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 2, HZ / 2); *data = *usbdata; kfree(usbdata); if (status < 0) { netdev_err(dev, "%s failure status: %d\n", __func__, status); return status; } return 0; } static int read_nic_word_E(struct net_device *dev, int indx, u16 *data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); if (!usbdata) return -ENOMEM; status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, indx | 0xfe00, 0, usbdata, 2, HZ / 2); *data = *usbdata; kfree(usbdata); if (status < 0) { netdev_err(dev, "%s failure status: %d\n", __func__, status); return status; } return 0; } int read_nic_dword(struct net_device *dev, int indx, u32 *data) { int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct usb_device *udev = priv->udev; u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL); if (!usbdata) return -ENOMEM; status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, usbdata, 4, HZ / 2); *data = *usbdata; kfree(usbdata); if (status < 0) { netdev_err(dev, "%s failure status: %d\n", __func__, status); return status; } return 0; } /* u8 read_phy_cck(struct net_device *dev, u8 adr); */ /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */ /* this might still called in what was the PHY rtl8185/rtl8192 common code * plans are to possibility turn it again in one common code... */ inline void force_pci_posting(struct net_device *dev) { } static struct net_device_stats *rtl8192_stats(struct net_device *dev); static void rtl8192_restart(struct work_struct *work); static void watch_dog_timer_callback(struct timer_list *t); /**************************************************************************** * -----------------------------PROCFS STUFF------------------------- ****************************************************************************/ static struct proc_dir_entry *rtl8192_proc; static int __maybe_unused proc_get_stats_ap(struct seq_file *m, void *v) { struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; struct ieee80211_network *target; list_for_each_entry(target, &ieee->network_list, list) { const char *wpa = "non_WPA"; if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) wpa = "WPA"; seq_printf(m, "%s %s\n", target->ssid, wpa); } return 0; } static int __maybe_unused proc_get_registers(struct seq_file *m, void *v) { struct net_device *dev = m->private; int i, n, max = 0xff; u8 byte_rd; seq_puts(m, "\n####################page 0##################\n "); for (n = 0; n <= max;) { seq_printf(m, "\nD: %2x > ", n); for (i = 0; i < 16 && n <= max; i++, n++) { read_nic_byte(dev, 0x000 | n, &byte_rd); seq_printf(m, "%2x ", byte_rd); } } seq_puts(m, "\n####################page 1##################\n "); for (n = 0; n <= max;) { seq_printf(m, "\nD: %2x > ", n); for (i = 0; i < 16 && n <= max; i++, n++) { read_nic_byte(dev, 0x100 | n, &byte_rd); seq_printf(m, "%2x ", byte_rd); } } seq_puts(m, "\n####################page 3##################\n "); for (n = 0; n <= max;) { seq_printf(m, "\nD: %2x > ", n); for (i = 0; i < 16 && n <= max; i++, n++) { read_nic_byte(dev, 0x300 | n, &byte_rd); seq_printf(m, "%2x ", byte_rd); } } seq_putc(m, '\n'); return 0; } static int __maybe_unused proc_get_stats_tx(struct seq_file *m, void *v) { struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); seq_printf(m, "TX VI priority ok int: %lu\n" "TX VI priority error int: %lu\n" "TX VO priority ok int: %lu\n" "TX VO priority error int: %lu\n" "TX BE priority ok int: %lu\n" "TX BE priority error int: %lu\n" "TX BK priority ok int: %lu\n" "TX BK priority error int: %lu\n" "TX MANAGE priority ok int: %lu\n" "TX MANAGE priority error int: %lu\n" "TX BEACON priority ok int: %lu\n" "TX BEACON priority error int: %lu\n" "TX queue resume: %lu\n" "TX queue stopped?: %d\n" "TX fifo overflow: %lu\n" "TX VI queue: %d\n" "TX VO queue: %d\n" "TX BE queue: %d\n" "TX BK queue: %d\n" "TX VI dropped: %lu\n" "TX VO dropped: %lu\n" "TX BE dropped: %lu\n" "TX BK dropped: %lu\n" "TX total data packets %lu\n", priv->stats.txviokint, priv->stats.txvierr, priv->stats.txvookint, priv->stats.txvoerr, priv->stats.txbeokint, priv->stats.txbeerr, priv->stats.txbkokint, priv->stats.txbkerr, priv->stats.txmanageokint, priv->stats.txmanageerr, priv->stats.txbeaconokint, priv->stats.txbeaconerr, priv->stats.txresumed, netif_queue_stopped(dev), priv->stats.txoverflow, atomic_read(&(priv->tx_pending[VI_PRIORITY])), atomic_read(&(priv->tx_pending[VO_PRIORITY])), atomic_read(&(priv->tx_pending[BE_PRIORITY])), atomic_read(&(priv->tx_pending[BK_PRIORITY])), priv->stats.txvidrop, priv->stats.txvodrop, priv->stats.txbedrop, priv->stats.txbkdrop, priv->stats.txdatapkt ); return 0; } static int __maybe_unused proc_get_stats_rx(struct seq_file *m, void *v) { struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); seq_printf(m, "RX packets: %lu\n" "RX urb status error: %lu\n" "RX invalid urb error: %lu\n", priv->stats.rxoktotal, priv->stats.rxstaterr, priv->stats.rxurberr); return 0; } static void rtl8192_proc_module_init(void) { RT_TRACE(COMP_INIT, "Initializing proc filesystem"); rtl8192_proc = proc_mkdir(RTL819XU_MODULE_NAME, init_net.proc_net); } static void rtl8192_proc_init_one(struct net_device *dev) { struct proc_dir_entry *dir; if (!rtl8192_proc) return; dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); if (!dir) return; proc_create_single("stats-rx", S_IFREG | S_IRUGO, dir, proc_get_stats_rx); proc_create_single("stats-tx", S_IFREG | S_IRUGO, dir, proc_get_stats_tx); proc_create_single("stats-ap", S_IFREG | S_IRUGO, dir, proc_get_stats_ap); proc_create_single("registers", S_IFREG | S_IRUGO, dir, proc_get_registers); } static void rtl8192_proc_remove_one(struct net_device *dev) { remove_proc_subtree(dev->name, rtl8192_proc); } /**************************************************************************** * -----------------------------MISC STUFF------------------------- *****************************************************************************/ short check_nic_enough_desc(struct net_device *dev, int queue_index) { struct r8192_priv *priv = ieee80211_priv(dev); int used = atomic_read(&priv->tx_pending[queue_index]); return (used < MAX_TX_URB); } static void tx_timeout(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); schedule_work(&priv->reset_wq); } void rtl8192_update_msr(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u8 msr; read_nic_byte(dev, MSR, &msr); msr &= ~MSR_LINK_MASK; /* do not change in link_state != WLAN_LINK_ASSOCIATED. * msr must be updated if the state is ASSOCIATING. * this is intentional and make sense for ad-hoc and * master (see the create BSS/IBSS func) */ if (priv->ieee80211->state == IEEE80211_LINKED) { if (priv->ieee80211->iw_mode == IW_MODE_INFRA) msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT); else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT); } else { msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT); } write_nic_byte(dev, MSR, msr); } void rtl8192_set_chan(struct net_device *dev, short ch) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch); priv->chan = ch; /* this hack should avoid frame TX during channel setting*/ /* need to implement rf set channel here */ if (priv->rf_set_chan) priv->rf_set_chan(dev, priv->chan); mdelay(10); } static void rtl8192_rx_isr(struct urb *urb); static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) { return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize + pstats->RxBufShift); } void rtl8192_rx_enable(struct net_device *dev) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct urb *entry; struct sk_buff *skb; struct rtl8192_rx_info *info; /* nomal packet rx procedure */ while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) { skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); if (!skb) break; entry = usb_alloc_urb(0, GFP_KERNEL); if (!entry) { kfree_skb(skb); break; } usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 3), skb_tail_pointer(skb), RX_URB_SIZE, rtl8192_rx_isr, skb); info = (struct rtl8192_rx_info *)skb->cb; info->urb = entry; info->dev = dev; info->out_pipe = 3; /* denote rx normal packet queue */ skb_queue_tail(&priv->rx_queue, skb); usb_submit_urb(entry, GFP_KERNEL); } /* command packet rx procedure */ while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) { skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); if (!skb) break; entry = usb_alloc_urb(0, GFP_KERNEL); if (!entry) { kfree_skb(skb); break; } usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9), skb_tail_pointer(skb), RX_URB_SIZE, rtl8192_rx_isr, skb); info = (struct rtl8192_rx_info *)skb->cb; info->urb = entry; info->dev = dev; info->out_pipe = 9; /* denote rx cmd packet queue */ skb_queue_tail(&priv->rx_queue, skb); usb_submit_urb(entry, GFP_KERNEL); } } void rtl8192_set_rxconf(struct net_device *dev) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); u32 rxconf; read_nic_dword(dev, RCR, &rxconf); rxconf = rxconf & ~MAC_FILTER_MASK; rxconf = rxconf | RCR_AMF; rxconf = rxconf | RCR_ADF; rxconf = rxconf | RCR_AB; rxconf = rxconf | RCR_AM; if (dev->flags & IFF_PROMISC) DMESG("NIC in promisc mode"); if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || dev->flags & IFF_PROMISC) { rxconf = rxconf | RCR_AAP; } else { rxconf = rxconf | RCR_APM; rxconf = rxconf | RCR_CBSSID; } if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) { rxconf = rxconf | RCR_AICV; rxconf = rxconf | RCR_APWRMGT; } if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR) rxconf = rxconf | RCR_ACRC32; rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK; rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT); rxconf = rxconf & ~MAX_RX_DMA_MASK; rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET); rxconf = rxconf | RCR_ONLYERLPKT; write_nic_dword(dev, RCR, rxconf); } void rtl8192_rtx_disable(struct net_device *dev) { u8 cmd; struct r8192_priv *priv = ieee80211_priv(dev); struct sk_buff *skb; struct rtl8192_rx_info *info; read_nic_byte(dev, CMDR, &cmd); write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE)); force_pci_posting(dev); mdelay(10); while ((skb = __skb_dequeue(&priv->rx_queue))) { info = (struct rtl8192_rx_info *)skb->cb; if (!info->urb) continue; usb_kill_urb(info->urb); kfree_skb(skb); } if (skb_queue_len(&priv->skb_queue)) netdev_warn(dev, "skb_queue not empty\n"); skb_queue_purge(&priv->skb_queue); } /* The prototype of rx_isr has changed since one version of Linux Kernel */ static void rtl8192_rx_isr(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *)urb->context; struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; struct net_device *dev = info->dev; struct r8192_priv *priv = ieee80211_priv(dev); int out_pipe = info->out_pipe; int err; if (!priv->up) return; if (unlikely(urb->status)) { info->urb = NULL; priv->stats.rxstaterr++; priv->ieee80211->stats.rx_errors++; usb_free_urb(urb); return; } skb_unlink(skb, &priv->rx_queue); skb_put(skb, urb->actual_length); skb_queue_tail(&priv->skb_queue, skb); tasklet_schedule(&priv->irq_rx_tasklet); skb = dev_alloc_skb(RX_URB_SIZE); if (unlikely(!skb)) { usb_free_urb(urb); netdev_err(dev, "%s(): can't alloc skb\n", __func__); /* TODO check rx queue length and refill *somewhere* */ return; } usb_fill_bulk_urb(urb, priv->udev, usb_rcvbulkpipe(priv->udev, out_pipe), skb_tail_pointer(skb), RX_URB_SIZE, rtl8192_rx_isr, skb); info = (struct rtl8192_rx_info *)skb->cb; info->urb = urb; info->dev = dev; info->out_pipe = out_pipe; urb->transfer_buffer = skb_tail_pointer(skb); urb->context = skb; skb_queue_tail(&priv->rx_queue, skb); err = usb_submit_urb(urb, GFP_ATOMIC); if (err && err != EPERM) netdev_err(dev, "can not submit rxurb, err is %x, URB status is %x\n", err, urb->status); } static u32 rtl819xusb_rx_command_packet(struct net_device *dev, struct ieee80211_rx_stats *pstats) { u32 status; status = cmpk_message_handle_rx(dev, pstats); if (status) DMESG("rxcommandpackethandle819xusb: It is a command packet\n"); return status; } static void rtl8192_data_hard_stop(struct net_device *dev) { /* FIXME !! */ } static void rtl8192_data_hard_resume(struct net_device *dev) { /* FIXME !! */ } /* this function TX data frames when the ieee80211 stack requires this. * It checks also if we need to stop the ieee tx queue, eventually do it */ static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, int rate) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); int ret; unsigned long flags; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); u8 queue_index = tcb_desc->queue_index; /* shall not be referred by command packet */ RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); spin_lock_irqsave(&priv->tx_lock, flags); *(struct net_device **)(skb->cb) = dev; tcb_desc->bTxEnableFwCalcDur = 1; skb_push(skb, priv->ieee80211->tx_headroom); ret = rtl8192_tx(dev, skb); spin_unlock_irqrestore(&priv->tx_lock, flags); } /* This is a rough attempt to TX a frame * This is called by the ieee 80211 stack to TX management frames. * If the ring is full packet are dropped (for data frame the queue * is stopped before this can happen). */ static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); int ret; unsigned long flags; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); u8 queue_index = tcb_desc->queue_index; spin_lock_irqsave(&priv->tx_lock, flags); memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); if (queue_index == TXCMD_QUEUE) { skb_push(skb, USB_HWDESC_HEADER_LEN); rtl819xU_tx_cmd(dev, skb); ret = 1; } else { skb_push(skb, priv->ieee80211->tx_headroom); ret = rtl8192_tx(dev, skb); } spin_unlock_irqrestore(&priv->tx_lock, flags); return ret; } static void rtl8192_tx_isr(struct urb *tx_urb) { struct sk_buff *skb = (struct sk_buff *)tx_urb->context; struct net_device *dev; struct r8192_priv *priv = NULL; struct cb_desc *tcb_desc; u8 queue_index; if (!skb) return; dev = *(struct net_device **)(skb->cb); tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); queue_index = tcb_desc->queue_index; priv = ieee80211_priv(dev); if (tcb_desc->queue_index != TXCMD_QUEUE) { if (tx_urb->status == 0) { netif_trans_update(dev); priv->stats.txoktotal++; priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; priv->stats.txbytesunicast += (skb->len - priv->ieee80211->tx_headroom); } else { priv->ieee80211->stats.tx_errors++; /* TODO */ } } /* free skb and tx_urb */ dev_kfree_skb_any(skb); usb_free_urb(tx_urb); atomic_dec(&priv->tx_pending[queue_index]); /* * Handle HW Beacon: * We had transfer our beacon frame to host controller at this moment. * * * Caution: * Handling the wait queue of command packets. * For Tx command packets, we must not do TCB fragment because it is * not handled right now. We must cut the packets to match the size of * TX_CMD_PKT before we send it. */ /* Handle MPDU in wait queue. */ if (queue_index != BEACON_QUEUE) { /* Don't send data frame during scanning.*/ if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && (!(priv->ieee80211->queue_stop))) { skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); if (skb) priv->ieee80211->softmac_hard_start_xmit(skb, dev); return; /* avoid further processing AMSDU */ } } } static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) { struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_network *net; u8 i = 0, basic_rate = 0; net = &priv->ieee80211->current_network; for (i = 0; i < net->rates_len; i++) { basic_rate = net->rates[i] & 0x7f; switch (basic_rate) { case MGN_1M: *rate_config |= RRSR_1M; break; case MGN_2M: *rate_config |= RRSR_2M; break; case MGN_5_5M: *rate_config |= RRSR_5_5M; break; case MGN_11M: *rate_config |= RRSR_11M; break; case MGN_6M: *rate_config |= RRSR_6M; break; case MGN_9M: *rate_config |= RRSR_9M; break; case MGN_12M: *rate_config |= RRSR_12M; break; case MGN_18M: *rate_config |= RRSR_18M; break; case MGN_24M: *rate_config |= RRSR_24M; break; case MGN_36M: *rate_config |= RRSR_36M; break; case MGN_48M: *rate_config |= RRSR_48M; break; case MGN_54M: *rate_config |= RRSR_54M; break; } } for (i = 0; i < net->rates_ex_len; i++) { basic_rate = net->rates_ex[i] & 0x7f; switch (basic_rate) { case MGN_1M: *rate_config |= RRSR_1M; break; case MGN_2M: *rate_config |= RRSR_2M; break; case MGN_5_5M: *rate_config |= RRSR_5_5M; break; case MGN_11M: *rate_config |= RRSR_11M; break; case MGN_6M: *rate_config |= RRSR_6M; break; case MGN_9M: *rate_config |= RRSR_9M; break; case MGN_12M: *rate_config |= RRSR_12M; break; case MGN_18M: *rate_config |= RRSR_18M; break; case MGN_24M: *rate_config |= RRSR_24M; break; case MGN_36M: *rate_config |= RRSR_36M; break; case MGN_48M: *rate_config |= RRSR_48M; break; case MGN_54M: *rate_config |= RRSR_54M; break; } } } #define SHORT_SLOT_TIME 9 #define NON_SHORT_SLOT_TIME 20 static void rtl8192_update_cap(struct net_device *dev, u16 cap) { u32 tmp = 0; struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_network *net = &priv->ieee80211->current_network; priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; tmp = priv->basic_rate; if (priv->short_preamble) tmp |= BRSR_AckShortPmb; write_nic_dword(dev, RRSR, tmp); if (net->mode & (IEEE_G | IEEE_N_24G)) { u8 slot_time = 0; if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) /* short slot time */ slot_time = SHORT_SLOT_TIME; else /* long slot time */ slot_time = NON_SHORT_SLOT_TIME; priv->slot_time = slot_time; write_nic_byte(dev, SLOT_TIME, slot_time); } } static void rtl8192_net_update(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_network *net; u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; u16 rate_config = 0; net = &priv->ieee80211->current_network; rtl8192_config_rate(dev, &rate_config); priv->basic_rate = rate_config & 0x15f; write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); rtl8192_update_msr(dev); if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { write_nic_word(dev, ATIMWND, 2); write_nic_word(dev, BCN_DMATIME, 1023); write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); write_nic_word(dev, BCN_DRV_EARLY_INT, 1); write_nic_byte(dev, BCN_ERR_THRESH, 100); BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); /* TODO: BcnIFS may required to be changed on ASIC */ BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; write_nic_word(dev, BCN_TCFG, BcnTimeCfg); } } /* temporary hw beacon is not used any more. * open it when necessary */ void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) { } short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) { struct r8192_priv *priv = ieee80211_priv(dev); int status; struct urb *tx_urb; unsigned int idx_pipe; struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data; struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); u8 queue_index = tcb_desc->queue_index; atomic_inc(&priv->tx_pending[queue_index]); tx_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!tx_urb) { dev_kfree_skb(skb); return -ENOMEM; } memset(pdesc, 0, USB_HWDESC_HEADER_LEN); /* Tx descriptor ought to be set according to the skb->cb */ pdesc->FirstSeg = 1; pdesc->LastSeg = 1; pdesc->CmdInit = tcb_desc->bCmdOrInit; pdesc->TxBufferSize = tcb_desc->txbuf_size; pdesc->OWN = 1; pdesc->LINIP = tcb_desc->bLastIniPkt; /*--------------------------------------------------------------------- * Fill up USB_OUT_CONTEXT. *--------------------------------------------------------------------- */ idx_pipe = 0x04; usb_fill_bulk_urb(tx_urb, priv->udev, usb_sndbulkpipe(priv->udev, idx_pipe), skb->data, skb->len, rtl8192_tx_isr, skb); status = usb_submit_urb(tx_urb, GFP_ATOMIC); if (!status) return 0; DMESGE("Error TX CMD URB, error %d", status); dev_kfree_skb(skb); usb_free_urb(tx_urb); return -1; } /* * Mapping Software/Hardware descriptor queue id to "Queue Select Field" * in TxFwInfo data structure * 2006.10.30 by Emily * * \param QUEUEID Software Queue */ static u8 MapHwQueueToFirmwareQueue(u8 QueueID) { u8 QueueSelect = 0x0; /* default set to */ switch (QueueID) { case BE_QUEUE: QueueSelect = QSLT_BE; break; case BK_QUEUE: QueueSelect = QSLT_BK; break; case VO_QUEUE: QueueSelect = QSLT_VO; break; case VI_QUEUE: QueueSelect = QSLT_VI; break; case MGNT_QUEUE: QueueSelect = QSLT_MGNT; break; case BEACON_QUEUE: QueueSelect = QSLT_BEACON; break; /* TODO: mark other queue selection until we verify it is OK */ /* TODO: Remove Assertions */ case TXCMD_QUEUE: QueueSelect = QSLT_CMD; break; case HIGH_QUEUE: QueueSelect = QSLT_HIGH; break; default: RT_TRACE(COMP_ERR, "TransmitTCB(): Impossible Queue Selection: %d\n", QueueID); break; } return QueueSelect; } static u8 MRateToHwRate8190Pci(u8 rate) { u8 ret = DESC90_RATE1M; switch (rate) { case MGN_1M: ret = DESC90_RATE1M; break; case MGN_2M: ret = DESC90_RATE2M; break; case MGN_5_5M: ret = DESC90_RATE5_5M; break; case MGN_11M: ret = DESC90_RATE11M; break; case MGN_6M: ret = DESC90_RATE6M; break; case MGN_9M: ret = DESC90_RATE9M; break; case MGN_12M: ret = DESC90_RATE12M; break; case MGN_18M: ret = DESC90_RATE18M; break; case MGN_24M: ret = DESC90_RATE24M; break; case MGN_36M: ret = DESC90_RATE36M; break; case MGN_48M: ret = DESC90_RATE48M; break; case MGN_54M: ret = DESC90_RATE54M; break; /* HT rate since here */ case MGN_MCS0: ret = DESC90_RATEMCS0; break; case MGN_MCS1: ret = DESC90_RATEMCS1; break; case MGN_MCS2: ret = DESC90_RATEMCS2; break; case MGN_MCS3: ret = DESC90_RATEMCS3; break; case MGN_MCS4: ret = DESC90_RATEMCS4; break; case MGN_MCS5: ret = DESC90_RATEMCS5; break; case MGN_MCS6: ret = DESC90_RATEMCS6; break; case MGN_MCS7: ret = DESC90_RATEMCS7; break; case MGN_MCS8: ret = DESC90_RATEMCS8; break; case MGN_MCS9: ret = DESC90_RATEMCS9; break; case MGN_MCS10: ret = DESC90_RATEMCS10; break; case MGN_MCS11: ret = DESC90_RATEMCS11; break; case MGN_MCS12: ret = DESC90_RATEMCS12; break; case MGN_MCS13: ret = DESC90_RATEMCS13; break; case MGN_MCS14: ret = DESC90_RATEMCS14; break; case MGN_MCS15: ret = DESC90_RATEMCS15; break; case (0x80 | 0x20): ret = DESC90_RATEMCS32; break; default: break; } return ret; } static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) { u8 tmp_Short; tmp_Short = (TxHT == 1) ? ((tcb_desc->bUseShortGI) ? 1 : 0) : ((tcb_desc->bUseShortPreamble) ? 1 : 0); if (TxHT == 1 && TxRate != DESC90_RATEMCS15) tmp_Short = 0; return tmp_Short; } static void tx_zero_isr(struct urb *tx_urb) { } /* * The tx procedure is just as following, * skb->cb will contain all the following information, * priority, morefrag, rate, &dev. */ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) { struct r8192_priv *priv = ieee80211_priv(dev); struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data; struct tx_fwinfo_819x_usb *tx_fwinfo = (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); struct usb_device *udev = priv->udev; int pend; int status, rt = -1; struct urb *tx_urb = NULL, *tx_urb_zero = NULL; unsigned int idx_pipe; pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); /* we are locked here so the two atomic_read and inc are executed * without interleaves * !!! For debug purpose */ if (pend > MAX_TX_URB) { netdev_dbg(dev, "To discard skb packet!\n"); dev_kfree_skb_any(skb); return -1; } tx_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!tx_urb) { dev_kfree_skb_any(skb); return -ENOMEM; } /* Fill Tx firmware info */ memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb)); /* DWORD 0 */ tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, tcb_desc); if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ tx_fwinfo->AllowAggregation = 1; /* DWORD 1 */ tx_fwinfo->RxMF = tcb_desc->ampdu_factor; tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; } else { tx_fwinfo->AllowAggregation = 0; /* DWORD 1 */ tx_fwinfo->RxMF = 0; tx_fwinfo->RxAMD = 0; } /* Protection mode related */ tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : (tcb_desc->bRTSUseShortGI ? 1 : 0); /* Set Bandwidth and sub-channel settings. */ if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { if (tcb_desc->bPacketBW) { tx_fwinfo->TxBandwidth = 1; /* use duplicated mode */ tx_fwinfo->TxSubCarrier = 0; } else { tx_fwinfo->TxBandwidth = 0; tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; } } else { tx_fwinfo->TxBandwidth = 0; tx_fwinfo->TxSubCarrier = 0; } /* Fill Tx descriptor */ memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb)); /* DWORD 0 */ tx_desc->LINIP = 0; tx_desc->CmdInit = 1; tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8; tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; /*DWORD 1*/ tx_desc->SecCAMID = 0; tx_desc->RATid = tcb_desc->RATRIndex; tx_desc->NoEnc = 1; tx_desc->SecType = 0x0; if (tcb_desc->bHwSec) { switch (priv->ieee80211->pairwise_key_type) { case KEY_TYPE_WEP40: case KEY_TYPE_WEP104: tx_desc->SecType = 0x1; tx_desc->NoEnc = 0; break; case KEY_TYPE_TKIP: tx_desc->SecType = 0x2; tx_desc->NoEnc = 0; break; case KEY_TYPE_CCMP: tx_desc->SecType = 0x3; tx_desc->NoEnc = 0; break; case KEY_TYPE_NA: tx_desc->SecType = 0x0; tx_desc->NoEnc = 1; break; } } tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb); tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; /* Fill fields that are required to be initialized in * all of the descriptors */ /* DWORD 0 */ tx_desc->FirstSeg = 1; tx_desc->LastSeg = 1; tx_desc->OWN = 1; /* DWORD 2 */ tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); idx_pipe = 0x5; /* To submit bulk urb */ usb_fill_bulk_urb(tx_urb, udev, usb_sndbulkpipe(udev, idx_pipe), skb->data, skb->len, rtl8192_tx_isr, skb); status = usb_submit_urb(tx_urb, GFP_ATOMIC); if (!status) { /* We need to send 0 byte packet whenever * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has * been transmitted. Otherwise, it will be halt to wait for * another packet. */ bool bSend0Byte = false; u8 zero = 0; if (udev->speed == USB_SPEED_HIGH) { if (skb->len > 0 && skb->len % 512 == 0) bSend0Byte = true; } else { if (skb->len > 0 && skb->len % 64 == 0) bSend0Byte = true; } if (bSend0Byte) { tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); if (!tx_urb_zero) { rt = -ENOMEM; goto error; } usb_fill_bulk_urb(tx_urb_zero, udev, usb_sndbulkpipe(udev, idx_pipe), &zero, 0, tx_zero_isr, dev); status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); if (status) { RT_TRACE(COMP_ERR, "Error TX URB for zero byte %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status); goto error; } } netif_trans_update(dev); atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); return 0; } RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status); error: dev_kfree_skb_any(skb); usb_free_urb(tx_urb); usb_free_urb(tx_urb_zero); return rt; } static short rtl8192_usb_initendpoints(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *), GFP_KERNEL); if (!priv->rx_urb) return -ENOMEM; #ifndef JACKSON_NEW_RX for (i = 0; i < (MAX_RX_URB + 1); i++) { priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); if (!priv->rx_urb[i]) return -ENOMEM; priv->rx_urb[i]->transfer_buffer = kmalloc(RX_URB_SIZE, GFP_KERNEL); if (!priv->rx_urb[i]->transfer_buffer) return -ENOMEM; priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; } #endif #ifdef THOMAS_BEACON { long align = 0; void *oldaddr, *newaddr; priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); priv->oldaddr = kmalloc(16, GFP_KERNEL); if (!priv->oldaddr) return -ENOMEM; oldaddr = priv->oldaddr; align = ((long)oldaddr) & 3; if (align) { newaddr = oldaddr + 4 - align; priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; } else { newaddr = oldaddr; priv->rx_urb[16]->transfer_buffer_length = 16; } priv->rx_urb[16]->transfer_buffer = newaddr; } #endif memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), GFP_KERNEL); if (!priv->pp_rxskb) { kfree(priv->rx_urb); priv->pp_rxskb = NULL; priv->rx_urb = NULL; DMESGE("Endpoint Alloc Failure"); return -ENOMEM; } netdev_dbg(dev, "End of initendpoints\n"); return 0; } #ifdef THOMAS_BEACON static void rtl8192_usb_deleteendpoints(struct net_device *dev) { int i; struct r8192_priv *priv = ieee80211_priv(dev); if (priv->rx_urb) { for (i = 0; i < (MAX_RX_URB + 1); i++) { usb_kill_urb(priv->rx_urb[i]); usb_free_urb(priv->rx_urb[i]); } kfree(priv->rx_urb); priv->rx_urb = NULL; } kfree(priv->oldaddr); priv->oldaddr = NULL; kfree(priv->pp_rxskb); priv->pp_rxskb = NULL; } #else void rtl8192_usb_deleteendpoints(struct net_device *dev) { int i; struct r8192_priv *priv = ieee80211_priv(dev); #ifndef JACKSON_NEW_RX if (priv->rx_urb) { for (i = 0; i < (MAX_RX_URB + 1); i++) { usb_kill_urb(priv->rx_urb[i]); kfree(priv->rx_urb[i]->transfer_buffer); usb_free_urb(priv->rx_urb[i]); } kfree(priv->rx_urb); priv->rx_urb = NULL; } #else kfree(priv->rx_urb); priv->rx_urb = NULL; kfree(priv->oldaddr); priv->oldaddr = NULL; kfree(priv->pp_rxskb); priv->pp_rxskb = 0; #endif } #endif static void rtl8192_update_ratr_table(struct net_device *dev); static void rtl8192_link_change(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; if (ieee->state == IEEE80211_LINKED) { rtl8192_net_update(dev); rtl8192_update_ratr_table(dev); /* Add this as in pure N mode, wep encryption will use software * way, but there is no chance to set this as wep will not set * group key in wext. */ if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || ieee->pairwise_key_type == KEY_TYPE_WEP104) EnableHWSecurityConfig8192(dev); } /*update timing params*/ if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { u32 reg = 0; read_nic_dword(dev, RCR, ®); if (priv->ieee80211->state == IEEE80211_LINKED) priv->ReceiveConfig = reg |= RCR_CBSSID; else priv->ReceiveConfig = reg &= ~RCR_CBSSID; write_nic_dword(dev, RCR, reg); } } static const struct ieee80211_qos_parameters def_qos_parameters = { {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, {2, 2, 2, 2},/* aifs */ {0, 0, 0, 0},/* flags */ {0, 0, 0, 0} /* tx_op_limit */ }; static void rtl8192_update_beacon(struct work_struct *work) { struct r8192_priv *priv = container_of(work, struct r8192_priv, update_beacon_wq.work); struct net_device *dev = priv->ieee80211->dev; struct ieee80211_device *ieee = priv->ieee80211; struct ieee80211_network *net = &ieee->current_network; if (ieee->pHTInfo->bCurrentHTSupport) HTUpdateSelfAndPeerSetting(ieee, net); ieee->pHTInfo->bCurrentRT2RTLongSlotTime = net->bssht.bdRT2RTLongSlotTime; rtl8192_update_cap(dev, net->capability); } /* * background support to run QoS activate functionality */ static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, EDCAPARA_VI, EDCAPARA_VO}; static void rtl8192_qos_activate(struct work_struct *work) { struct r8192_priv *priv = container_of(work, struct r8192_priv, qos_activate); struct net_device *dev = priv->ieee80211->dev; struct ieee80211_qos_parameters *qos_parameters = &priv->ieee80211->current_network.qos_data.parameters; u8 mode = priv->ieee80211->current_network.mode; u32 u1bAIFS; u32 u4bAcParam; u32 op_limit; u32 cw_max; u32 cw_min; int i; mutex_lock(&priv->mutex); if (priv->ieee80211->state != IEEE80211_LINKED) goto success; RT_TRACE(COMP_QOS, "qos active process with associate response received\n"); /* It better set slot time at first * * For we just support b/g mode at present, let the slot time at * 9/20 selection * * update the ac parameter to related registers */ for (i = 0; i < QOS_QUEUE_NUM; i++) { /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; u1bAIFS <<= AC_PARAM_AIFS_OFFSET; op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); cw_max <<= AC_PARAM_ECW_MAX_OFFSET; cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); cw_min <<= AC_PARAM_ECW_MIN_OFFSET; u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); } success: mutex_unlock(&priv->mutex); } static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, int active_network, struct ieee80211_network *network) { int ret = 0; u32 size = sizeof(struct ieee80211_qos_parameters); if (priv->ieee80211->state != IEEE80211_LINKED) return ret; if (priv->ieee80211->iw_mode != IW_MODE_INFRA) return ret; if (network->flags & NETWORK_HAS_QOS_MASK) { if (active_network && (network->flags & NETWORK_HAS_QOS_PARAMETERS)) network->qos_data.active = network->qos_data.supported; if ((network->qos_data.active == 1) && (active_network == 1) && (network->flags & NETWORK_HAS_QOS_PARAMETERS) && (network->qos_data.old_param_count != network->qos_data.param_count)) { network->qos_data.old_param_count = network->qos_data.param_count; schedule_work(&priv->qos_activate); RT_TRACE(COMP_QOS, "QoS parameters change call qos_activate\n"); } } else { memcpy(&priv->ieee80211->current_network.qos_data.parameters, &def_qos_parameters, size); if ((network->qos_data.active == 1) && (active_network == 1)) { schedule_work(&priv->qos_activate); RT_TRACE(COMP_QOS, "QoS was disabled call qos_activate\n"); } network->qos_data.active = 0; network->qos_data.supported = 0; } return 0; } /* handle and manage frame from beacon and probe response */ static int rtl8192_handle_beacon(struct net_device *dev, struct ieee80211_beacon *beacon, struct ieee80211_network *network) { struct r8192_priv *priv = ieee80211_priv(dev); rtl8192_qos_handle_probe_response(priv, 1, network); schedule_delayed_work(&priv->update_beacon_wq, 0); return 0; } /* * handling the beaconing responses. if we get different QoS setting * off the network from the associated setting, adjust the QoS * setting */ static int rtl8192_qos_association_resp(struct r8192_priv *priv, struct ieee80211_network *network) { unsigned long flags; u32 size = sizeof(struct ieee80211_qos_parameters); int set_qos_param = 0; if (!priv || !network) return 0; if (priv->ieee80211->state != IEEE80211_LINKED) return 0; if (priv->ieee80211->iw_mode != IW_MODE_INFRA) return 0; spin_lock_irqsave(&priv->ieee80211->lock, flags); if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { memcpy(&priv->ieee80211->current_network.qos_data.parameters, &network->qos_data.parameters, sizeof(struct ieee80211_qos_parameters)); priv->ieee80211->current_network.qos_data.active = 1; set_qos_param = 1; /* update qos parameter for current network */ priv->ieee80211->current_network.qos_data.old_param_count = priv->ieee80211->current_network.qos_data.param_count; priv->ieee80211->current_network.qos_data.param_count = network->qos_data.param_count; } else { memcpy(&priv->ieee80211->current_network.qos_data.parameters, &def_qos_parameters, size); priv->ieee80211->current_network.qos_data.active = 0; priv->ieee80211->current_network.qos_data.supported = 0; set_qos_param = 1; } spin_unlock_irqrestore(&priv->ieee80211->lock, flags); RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, network->flags, priv->ieee80211->current_network.qos_data.active); if (set_qos_param == 1) schedule_work(&priv->qos_activate); return 0; } static int rtl8192_handle_assoc_response(struct net_device *dev, struct ieee80211_assoc_response_frame *resp, struct ieee80211_network *network) { struct r8192_priv *priv = ieee80211_priv(dev); rtl8192_qos_association_resp(priv, network); return 0; } static void rtl8192_update_ratr_table(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; u8 *pMcsRate = ieee->dot11HTOperationalRateSet; u32 ratr_value = 0; u8 rate_index = 0; rtl8192_config_rate(dev, (u16 *)(&ratr_value)); ratr_value |= (*(u16 *)(pMcsRate)) << 12; switch (ieee->mode) { case IEEE_A: ratr_value &= 0x00000FF0; break; case IEEE_B: ratr_value &= 0x0000000F; break; case IEEE_G: ratr_value &= 0x00000FF7; break; case IEEE_N_24G: case IEEE_N_5G: if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { ratr_value &= 0x0007F007; } else { if (priv->rf_type == RF_1T2R) ratr_value &= 0x000FF007; else ratr_value &= 0x0F81F007; } break; default: break; } ratr_value &= 0x0FFFFFFF; if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) ratr_value |= 0x80000000; else if (!ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI20MHz) ratr_value |= 0x80000000; write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); write_nic_byte(dev, UFWP, 1); } static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; struct ieee80211_network *network = &ieee->current_network; int wpa_ie_len = ieee->wpa_ie_len; struct ieee80211_crypt_data *crypt; int encrypt; crypt = ieee->crypt[ieee->tx_keyidx]; /* we use connecting AP's capability instead of only security config * on our driver to distinguish whether it should use N mode or G mode */ encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || (ieee->host_encrypt && crypt && crypt->ops && (strcmp(crypt->ops->name, "WEP") == 0)); /* simply judge */ if (encrypt && (wpa_ie_len == 0)) { /* wep encryption, no N mode setting */ return false; } else if ((wpa_ie_len != 0)) { /* parse pairwise key type */ if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4)))) return true; else return false; } else { return true; } return true; } static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); return priv->ieee80211->bHalfWirelessN24GMode; } static void rtl8192_refresh_supportrate(struct r8192_priv *priv) { struct ieee80211_device *ieee = priv->ieee80211; /* We do not consider set support rate for ABG mode, only * HT MCS rate is set here. */ if (ieee->mode == WIRELESS_MODE_N_24G || ieee->mode == WIRELESS_MODE_N_5G) memcpy(ieee->Regdot11HTOperationalRateSet, ieee->RegHTSuppRateSet, 16); else memset(ieee->Regdot11HTOperationalRateSet, 0, 16); } static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u8 ret = 0; switch (priv->rf_chip) { case RF_8225: case RF_8256: case RF_PSEUDO_11N: ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; break; case RF_8258: ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; break; default: ret = WIRELESS_MODE_B; break; } return ret; } static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) { struct r8192_priv *priv = ieee80211_priv(dev); u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); if (wireless_mode == WIRELESS_MODE_AUTO || (wireless_mode & bSupportMode) == 0) { if (bSupportMode & WIRELESS_MODE_N_24G) { wireless_mode = WIRELESS_MODE_N_24G; } else if (bSupportMode & WIRELESS_MODE_N_5G) { wireless_mode = WIRELESS_MODE_N_5G; } else if ((bSupportMode & WIRELESS_MODE_A)) { wireless_mode = WIRELESS_MODE_A; } else if ((bSupportMode & WIRELESS_MODE_G)) { wireless_mode = WIRELESS_MODE_G; } else if ((bSupportMode & WIRELESS_MODE_B)) { wireless_mode = WIRELESS_MODE_B; } else { RT_TRACE(COMP_ERR, "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", __func__, bSupportMode); wireless_mode = WIRELESS_MODE_B; } } priv->ieee80211->mode = wireless_mode; if (wireless_mode == WIRELESS_MODE_N_24G || wireless_mode == WIRELESS_MODE_N_5G) priv->ieee80211->pHTInfo->bEnableHT = 1; else priv->ieee80211->pHTInfo->bEnableHT = 0; RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); rtl8192_refresh_supportrate(priv); } /* init priv variables here. only non_zero value should be initialized here. */ static int rtl8192_init_priv_variable(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u8 i; priv->card_8192 = NIC_8192U; priv->chan = 1; /* set to channel 1 */ priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ priv->ieee80211->iw_mode = IW_MODE_INFRA; priv->ieee80211->ieee_up = 0; priv->retry_rts = DEFAULT_RETRY_RTS; priv->retry_data = DEFAULT_RETRY_DATA; priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; priv->ieee80211->rate = 110; /* 11 mbps */ priv->ieee80211->short_slot = 1; priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; priv->CckPwEnl = 6; /* for silent reset */ priv->IrpPendingCount = 1; priv->ResetProgress = RESET_TYPE_NORESET; priv->bForcedSilentReset = false; priv->bDisableNormalResetCheck = false; priv->force_reset = false; /* we don't use FW read/write RF until stable firmware is available. */ priv->ieee80211->FwRWRF = 0; priv->ieee80211->current_network.beacon_interval = DEFAULT_BEACONINTERVAL; priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | IEEE_SOFTMAC_BEACONS; priv->ieee80211->active_scan = 1; priv->ieee80211->modulation = IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; priv->ieee80211->host_encrypt = 1; priv->ieee80211->host_decrypt = 1; priv->ieee80211->start_send_beacons = NULL; priv->ieee80211->stop_send_beacons = NULL; priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; priv->ieee80211->set_chan = rtl8192_set_chan; priv->ieee80211->link_change = rtl8192_link_change; priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; priv->ieee80211->init_wmmparam_flag = 0; priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; priv->ieee80211->qos_support = 1; priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; priv->ieee80211->handle_beacon = rtl8192_handle_beacon; priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; priv->ieee80211->GetHalfNmodeSupportByAPsHandler = GetHalfNmodeSupportByAPs819xUsb; priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; priv->ieee80211->InitialGainHandler = InitialGain819xUsb; priv->card_type = USB; priv->ShortRetryLimit = 0x30; priv->LongRetryLimit = 0x30; priv->EarlyRxThreshold = 7; priv->enable_gpio0 = 0; priv->TransmitConfig = /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | /* Short retry limit */ (priv->ShortRetryLimit << TCR_SRL_OFFSET) | /* Long retry limit */ (priv->LongRetryLimit << TCR_LRL_OFFSET) | /* FALSE: HW provides PLCP length and LENGEXT * TRUE: SW provides them */ (false ? TCR_SAT : 0); priv->ReceiveConfig = /* accept management/data */ RCR_AMF | RCR_ADF | /* accept control frame for SW AP needs PS-poll */ RCR_ACF | /* accept BC/MC/UC */ RCR_AB | RCR_AM | RCR_APM | /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ ((u32)7 << RCR_MXDMA_OFFSET) | /* Rx FIFO Threshold, 7: No Rx threshold. */ (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); priv->AcmControl = 0; priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); if (!priv->pFirmware) return -ENOMEM; /* rx related queue */ skb_queue_head_init(&priv->rx_queue); skb_queue_head_init(&priv->skb_queue); /* Tx related queue */ for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); priv->rf_set_chan = rtl8192_phy_SwChnl; return 0; } /* init lock here */ static void rtl8192_init_priv_lock(struct r8192_priv *priv) { spin_lock_init(&priv->tx_lock); spin_lock_init(&priv->irq_lock); mutex_init(&priv->wx_mutex); mutex_init(&priv->mutex); } static void rtl819x_watchdog_wqcallback(struct work_struct *work); static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv); /* init tasklet and wait_queue here. only 2.6 above kernel is considered */ #define DRV_NAME "wlan0" static void rtl8192_init_priv_task(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); INIT_WORK(&priv->reset_wq, rtl8192_restart); INIT_DELAYED_WORK(&priv->watch_dog_wq, rtl819x_watchdog_wqcallback); INIT_DELAYED_WORK(&priv->txpower_tracking_wq, dm_txpower_trackingcallback); INIT_DELAYED_WORK(&priv->rfpath_check_wq, dm_rf_pathcheck_workitemcallback); INIT_DELAYED_WORK(&priv->update_beacon_wq, rtl8192_update_beacon); INIT_DELAYED_WORK(&priv->initialgain_operate_wq, InitialGainOperateWorkItemCallBack); INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); tasklet_init(&priv->irq_rx_tasklet, (void(*)(unsigned long))rtl8192_irq_rx_tasklet, (unsigned long)priv); } static void rtl8192_get_eeprom_size(struct net_device *dev) { u16 curCR = 0; struct r8192_priv *priv = ieee80211_priv(dev); RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); read_nic_word_E(dev, EPROM_CMD, &curCR); RT_TRACE(COMP_EPROM, "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); /* whether need I consider BIT(5?) */ priv->epromtype = (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; RT_TRACE(COMP_EPROM, "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); } /* used to swap endian. as ntohl & htonl are not necessary * to swap endian, so use this instead. */ static inline u16 endian_swap(u16 *data) { u16 tmp = *data; *data = (tmp >> 8) | (tmp << 8); return *data; } static int rtl8192_read_eeprom_info(struct net_device *dev) { u16 wEPROM_ID = 0; u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; u8 bLoad_From_EEPOM = false; struct r8192_priv *priv = ieee80211_priv(dev); u16 tmpValue = 0; int i; int ret; RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ if (ret < 0) return ret; wEPROM_ID = (u16)ret; RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); if (wEPROM_ID != RTL8190_EEPROM_ID) RT_TRACE(COMP_ERR, "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", wEPROM_ID, RTL8190_EEPROM_ID); else bLoad_From_EEPOM = true; if (bLoad_From_EEPOM) { tmpValue = eprom_read(dev, EEPROM_VID >> 1); ret = eprom_read(dev, EEPROM_VID >> 1); if (ret < 0) return ret; tmpValue = (u16)ret; priv->eeprom_vid = endian_swap(&tmpValue); ret = eprom_read(dev, EEPROM_PID >> 1); if (ret < 0) return ret; priv->eeprom_pid = (u16)ret; ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1); if (ret < 0) return ret; tmpValue = (u16)ret; priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; priv->btxpowerdata_readfromEEPORM = true; ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8; if (ret < 0) return ret; priv->eeprom_CustomerID = (u16)ret; } else { priv->eeprom_vid = 0; priv->eeprom_pid = 0; priv->card_8192_version = VERSION_819XU_B; priv->eeprom_ChannelPlan = 0; priv->eeprom_CustomerID = 0; } RT_TRACE(COMP_EPROM, "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, priv->eeprom_ChannelPlan); /* set channelplan from eeprom */ priv->ChannelPlan = priv->eeprom_ChannelPlan; if (bLoad_From_EEPOM) { int i; for (i = 0; i < 6; i += 2) { ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); if (ret < 0) return ret; *(u16 *)(&dev->dev_addr[i]) = (u16)ret; } } else { memcpy(dev->dev_addr, bMac_Tmp_Addr, 6); /* should I set IDR0 here? */ } RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ priv->rf_chip = RF_8256; if (priv->card_8192_version == VERSION_819XU_A) { /* read Tx power gain offset of legacy OFDM to HT rate */ if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1)); if (ret < 0) return ret; priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; } else priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER; RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); /* read ThermalMeter from EEPROM */ if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1)); if (ret < 0) return ret; priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); } else priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER; RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); /* for tx power track */ priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; /* read antenna tx power offset of B/C/D to A from EEPROM */ if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1)); if (ret < 0) return ret; priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; } else priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF; RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); /* Read CrystalCap from EEPROM */ if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1)); if (ret < 0) return ret; priv->EEPROMCrystalCap = (u16)ret & 0x0f; } else priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP; RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); /* get per-channel Tx power level */ if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1)); if (ret < 0) return ret; priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; } else priv->EEPROM_Def_Ver = 1; RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ int i; if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1)); if (ret < 0) return ret; priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8; } else priv->EEPROMTxPowerLevelCCK = 0x10; RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); for (i = 0; i < 3; i++) { if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1); if (ret < 0) return ret; if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0) tmpValue = (u16)ret & 0x00ff; else tmpValue = ((u16)ret & 0xff00) >> 8; } else { tmpValue = 0x10; } priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); } } else if (priv->EEPROM_Def_Ver == 1) { if (bLoad_From_EEPOM) { ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1); if (ret < 0) return ret; tmpValue = ((u16)ret & 0xff00) >> 8; } else { tmpValue = 0x10; } priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; if (bLoad_From_EEPOM) { ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1); if (ret < 0) return ret; tmpValue = (u16)ret; } else tmpValue = 0x1010; *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; if (bLoad_From_EEPOM) tmpValue = eprom_read(dev, EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1); else tmpValue = 0x1010; *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; if (bLoad_From_EEPOM) tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1); else tmpValue = 0x10; priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; } /* endif EEPROM_Def_Ver == 1 */ /* update HAL variables */ for (i = 0; i < 14; i++) { if (i <= 3) priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; else if (i >= 4 && i <= 9) priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; else priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; } for (i = 0; i < 14; i++) { if (priv->EEPROM_Def_Ver == 0) { if (i <= 3) priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); else if (i >= 4 && i <= 9) priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; else priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); } else if (priv->EEPROM_Def_Ver == 1) { if (i <= 3) priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; else if (i >= 4 && i <= 9) priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; else priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; } } priv->TxPowerDiff = priv->EEPROMPwDiff; /* Antenna B gain offset to antenna A, bit0~3 */ priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); /* Antenna C gain offset to antenna A, bit4~7 */ priv->AntennaTxPwDiff[1] = (priv->EEPROMTxPowerDiff & 0xf0) >> 4; /* CrystalCap, bit12~15 */ priv->CrystalCap = priv->EEPROMCrystalCap; /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 * 92U does not enable TX power tracking. */ priv->ThermalMeter[0] = priv->EEPROMThermalMeter; } /* end if VersionID == VERSION_819XU_A */ /* for dlink led */ switch (priv->eeprom_CustomerID) { case EEPROM_CID_RUNTOP: priv->CustomerID = RT_CID_819x_RUNTOP; break; case EEPROM_CID_DLINK: priv->CustomerID = RT_CID_DLINK; break; default: priv->CustomerID = RT_CID_DEFAULT; break; } switch (priv->CustomerID) { case RT_CID_819x_RUNTOP: priv->LedStrategy = SW_LED_MODE2; break; case RT_CID_DLINK: priv->LedStrategy = SW_LED_MODE4; break; default: priv->LedStrategy = SW_LED_MODE0; break; } if (priv->rf_type == RF_1T2R) RT_TRACE(COMP_EPROM, "\n1T2R config\n"); else RT_TRACE(COMP_EPROM, "\n2T4R config\n"); /* We can only know RF type in the function. So we have to init * DIG RATR table again. */ init_rate_adaptive(dev); RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); return 0; } static short rtl8192_get_channel_map(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { netdev_err(dev, "rtl8180_init: Error channel plan! Set to default.\n"); priv->ChannelPlan = 0; } RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); rtl819x_set_channel_map(priv->ChannelPlan, priv); return 0; } static short rtl8192_init(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int err; memset(&(priv->stats), 0, sizeof(struct Stats)); memset(priv->txqueue_to_outpipemap, 0, 9); #ifdef PIPE12 { int i = 0; u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); } #else { u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); } #endif err = rtl8192_init_priv_variable(dev); if (err) return err; rtl8192_init_priv_lock(priv); rtl8192_init_priv_task(dev); rtl8192_get_eeprom_size(dev); err = rtl8192_read_eeprom_info(dev); if (err) { DMESG("Reading EEPROM info failed"); return err; } rtl8192_get_channel_map(dev); init_hal_dm(dev); timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); if (rtl8192_usb_initendpoints(dev) != 0) { DMESG("Endopoints initialization failed"); return -ENOMEM; } return 0; } /****************************************************************************** *function: This function actually only set RRSR, RATR and BW_OPMODE registers * not to do all the hw config as its name says * input: net_device dev * output: none * return: none * notice: This part need to modified according to the rate set we filtered * ****************************************************************************/ static void rtl8192_hwconfig(struct net_device *dev) { u32 regRATR = 0, regRRSR = 0; u8 regBwOpMode = 0, regTmp = 0; struct r8192_priv *priv = ieee80211_priv(dev); u32 ratr_value = 0; /* Set RRSR, RATR, and BW_OPMODE registers */ switch (priv->ieee80211->mode) { case WIRELESS_MODE_B: regBwOpMode = BW_OPMODE_20MHZ; regRATR = RATE_ALL_CCK; regRRSR = RATE_ALL_CCK; break; case WIRELESS_MODE_A: regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; regRATR = RATE_ALL_OFDM_AG; regRRSR = RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_G: regBwOpMode = BW_OPMODE_20MHZ; regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_AUTO: regBwOpMode = BW_OPMODE_20MHZ; regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_N_24G: /* It support CCK rate by default. CCK rate will be filtered * out only when associated AP does not support it. */ regBwOpMode = BW_OPMODE_20MHZ; regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; break; case WIRELESS_MODE_N_5G: regBwOpMode = BW_OPMODE_5G; regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; regRRSR = RATE_ALL_OFDM_AG; break; } write_nic_byte(dev, BW_OPMODE, regBwOpMode); ratr_value = regRATR; if (priv->rf_type == RF_1T2R) ratr_value &= ~(RATE_ALL_OFDM_2SS); write_nic_dword(dev, RATR0, ratr_value); write_nic_byte(dev, UFWP, 1); read_nic_byte(dev, 0x313, ®Tmp); regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); write_nic_dword(dev, RRSR, regRRSR); /* Set Retry Limit here */ write_nic_word(dev, RETRY_LIMIT, priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); /* Set Contention Window here */ /* Set Tx AGC */ /* Set Tx Antenna including Feedback control */ /* Set Auto Rate fallback control */ } /* InitializeAdapter and PhyCfg */ static bool rtl8192_adapter_start(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u32 dwRegRead = 0; bool init_status = true; u8 SECR_value = 0x0; u8 tmp; RT_TRACE(COMP_INIT, "====>%s()\n", __func__); priv->Rf_Mode = RF_OP_By_SW_3wire; /* for ASIC power on sequence */ write_nic_byte_E(dev, 0x5f, 0x80); mdelay(50); write_nic_byte_E(dev, 0x5f, 0xf0); write_nic_byte_E(dev, 0x5d, 0x00); write_nic_byte_E(dev, 0x5e, 0x80); write_nic_byte(dev, 0x17, 0x37); mdelay(10); priv->pFirmware->firmware_status = FW_STATUS_0_INIT; /* config CPUReset Register */ /* Firmware Reset or not? */ read_nic_dword(dev, CPU_GEN, &dwRegRead); if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT) dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY) dwRegRead |= CPU_GEN_FIRMWARE_RESET; else RT_TRACE(COMP_ERR, "ERROR in %s(): undefined firmware state(%d)\n", __func__, priv->pFirmware->firmware_status); write_nic_dword(dev, CPU_GEN, dwRegRead); /* config BB. */ rtl8192_BBConfig(dev); /* Loopback mode or not */ priv->LoopbackMode = RTL819xU_NO_LOOPBACK; read_nic_dword(dev, CPU_GEN, &dwRegRead); if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | CPU_GEN_NO_LOOPBACK_SET; else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) dwRegRead |= CPU_CCK_LOOPBACK; else RT_TRACE(COMP_ERR, "Serious error in %s(): wrong loopback mode setting(%d)\n", __func__, priv->LoopbackMode); write_nic_dword(dev, CPU_GEN, dwRegRead); /* after reset cpu, we need wait for a seconds to write in register. */ udelay(500); /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ read_nic_byte_E(dev, 0x5f, &tmp); write_nic_byte_E(dev, 0x5f, tmp | 0x20); /* Set Hardware */ rtl8192_hwconfig(dev); /* turn on Tx/Rx */ write_nic_byte(dev, CMDR, CR_RE | CR_TE); /* set IDR0 here */ write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); /* set RCR */ write_nic_dword(dev, RCR, priv->ReceiveConfig); /* Initialize Number of Reserved Pages in Firmware Queue */ write_nic_dword(dev, RQPN1, NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); write_nic_dword(dev, RQPN2, NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); write_nic_dword(dev, RQPN3, APPLIED_RESERVED_QUEUE_IN_FW | NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); /* Set AckTimeout */ /* TODO: (it value is only for FPGA version). need to be changed!! */ write_nic_byte(dev, ACK_TIMEOUT, 0x30); if (priv->ResetProgress == RESET_TYPE_NORESET) rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); if (priv->ResetProgress == RESET_TYPE_NORESET) { CamResetAllEntry(dev); SECR_value |= SCR_TxEncEnable; SECR_value |= SCR_RxDecEnable; SECR_value |= SCR_NoSKMC; write_nic_byte(dev, SECR, SECR_value); } /* Beacon related */ write_nic_word(dev, ATIMWND, 2); write_nic_word(dev, BCN_INTERVAL, 100); #define DEFAULT_EDCA 0x005e4332 { int i; for (i = 0; i < QOS_QUEUE_NUM; i++) write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); } rtl8192_phy_configmac(dev); if (priv->card_8192_version == VERSION_819XU_A) { rtl8192_phy_getTxPower(dev); rtl8192_phy_setTxPower(dev, priv->chan); } /* Firmware download */ init_status = init_firmware(dev); if (!init_status) { RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", __func__); return init_status; } RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); /* config RF. */ if (priv->ResetProgress == RESET_TYPE_NORESET) { rtl8192_phy_RFConfig(dev); RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); } if (priv->ieee80211->FwRWRF) /* We can force firmware to do RF-R/W */ priv->Rf_Mode = RF_OP_By_FW; else priv->Rf_Mode = RF_OP_By_SW_3wire; rtl8192_phy_updateInitGain(dev); /*--set CCK and OFDM Block "ON"--*/ rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); if (priv->ResetProgress == RESET_TYPE_NORESET) { /* if D or C cut */ u8 tmpvalue; read_nic_byte(dev, 0x301, &tmpvalue); if (tmpvalue == 0x03) { priv->bDcut = true; RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); } else { priv->bDcut = false; RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); } dm_initialize_txpower_tracking(dev); if (priv->bDcut) { u32 i, TempCCk; u32 tmpRegA = rtl8192_QueryBBReg(dev, rOFDM0_XATxIQImbalance, bMaskDWord); for (i = 0; i < TxBBGainTableLength; i++) { if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { priv->rfa_txpowertrackingindex = (u8)i; priv->rfa_txpowertrackingindex_real = (u8)i; priv->rfa_txpowertracking_default = priv->rfa_txpowertrackingindex; break; } } TempCCk = rtl8192_QueryBBReg(dev, rCCK0_TxFilter1, bMaskByte2); for (i = 0; i < CCKTxBBGainTableLength; i++) { if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { priv->cck_present_attenuation_20Mdefault = (u8)i; break; } } priv->cck_present_attenuation_40Mdefault = 0; priv->cck_present_attenuation_difference = 0; priv->cck_present_attenuation = priv->cck_present_attenuation_20Mdefault; } } write_nic_byte(dev, 0x87, 0x0); return init_status; } /* this configures registers for beacon tx and enables it via * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might * be used to stop beacon transmission */ /*************************************************************************** * -------------------------------NET STUFF--------------------------- ***************************************************************************/ static struct net_device_stats *rtl8192_stats(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); return &priv->ieee80211->stats; } static bool HalTxCheckStuck819xUsb(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u16 RegTxCounter; bool bStuck = false; read_nic_word(dev, 0x128, &RegTxCounter); RT_TRACE(COMP_RESET, "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, RegTxCounter, priv->TxCounter); if (priv->TxCounter == RegTxCounter) bStuck = true; priv->TxCounter = RegTxCounter; return bStuck; } /* * * First added: 2006.11.19 by emily */ static RESET_TYPE TxCheckStuck(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u8 QueueID; bool bCheckFwTxCnt = false; /* Decide such threshold according to current power save mode */ for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { if (QueueID == TXCMD_QUEUE) continue; if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) continue; bCheckFwTxCnt = true; } if (bCheckFwTxCnt) { if (HalTxCheckStuck819xUsb(dev)) { RT_TRACE(COMP_RESET, "%s: Fw indicates no Tx condition!\n", __func__); return RESET_TYPE_SILENT; } } return RESET_TYPE_NORESET; } static bool HalRxCheckStuck819xUsb(struct net_device *dev) { u16 RegRxCounter; struct r8192_priv *priv = ieee80211_priv(dev); bool bStuck = false; static u8 rx_chk_cnt; read_nic_word(dev, 0x130, &RegRxCounter); RT_TRACE(COMP_RESET, "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, RegRxCounter, priv->RxCounter); /* If rssi is small, we should check rx for long time because of bad rx. * or maybe it will continuous silent reset every 2 seconds. */ rx_chk_cnt++; if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { if (rx_chk_cnt < 2) return bStuck; rx_chk_cnt = 0; } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { if (rx_chk_cnt < 4) return bStuck; rx_chk_cnt = 0; } else { if (rx_chk_cnt < 8) return bStuck; rx_chk_cnt = 0; } if (priv->RxCounter == RegRxCounter) bStuck = true; priv->RxCounter = RegRxCounter; return bStuck; } static RESET_TYPE RxCheckStuck(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); bool bRxCheck = false; if (priv->IrpPendingCount > 1) bRxCheck = true; if (bRxCheck) { if (HalRxCheckStuck819xUsb(dev)) { RT_TRACE(COMP_RESET, "RxStuck Condition\n"); return RESET_TYPE_SILENT; } } return RESET_TYPE_NORESET; } /** * This function is called by Checkforhang to check whether we should * ask OS to reset driver * * \param pAdapter The adapter context for this miniport * * Note:NIC with USB interface sholud not call this function because we * cannot scan descriptor to judge whether there is tx stuck. * Note: This function may be required to be rewrite for Vista OS. * <<>> * * 8185 and 8185b does not implement this function. */ static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); RESET_TYPE TxResetType = RESET_TYPE_NORESET; RESET_TYPE RxResetType = RESET_TYPE_NORESET; RT_RF_POWER_STATE rfState; rfState = priv->ieee80211->eRFPowerState; TxResetType = TxCheckStuck(dev); if (rfState != eRfOff || (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { /* If driver is in the status of firmware download failure, * driver skips RF initialization and RF is in turned off * state. Driver should check whether Rx stuck and do silent * reset. And if driver is in firmware download failure status, * driver should initialize RF in the following silent reset * procedure * * Driver should not check RX stuck in IBSS mode because it is * required to set Check BSSID in order to send beacon, * however, if check BSSID is set, STA cannot hear any packet * at all. */ RxResetType = RxCheckStuck(dev); } if (TxResetType == RESET_TYPE_NORMAL || RxResetType == RESET_TYPE_NORMAL) { return RESET_TYPE_NORMAL; } else if (TxResetType == RESET_TYPE_SILENT || RxResetType == RESET_TYPE_SILENT) { RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); return RESET_TYPE_SILENT; } else { return RESET_TYPE_NORESET; } } static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); static int _rtl8192_up(struct net_device *dev); static int rtl8192_close(struct net_device *dev); static void CamRestoreAllEntry(struct net_device *dev) { u8 EntryId = 0; struct r8192_priv *priv = ieee80211_priv(dev); u8 *MacAddr = priv->ieee80211->current_network.bssid; static u8 CAM_CONST_ADDR[4][6] = { {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; static u8 CAM_CONST_BROAD[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; RT_TRACE(COMP_SEC, "%s:\n", __func__); if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { for (EntryId = 0; EntryId < 4; EntryId++) { MacAddr = CAM_CONST_ADDR[EntryId]; setKey(dev, EntryId, EntryId, priv->ieee80211->pairwise_key_type, MacAddr, 0, NULL); } } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, (u8 *)dev->dev_addr, 0, NULL); else setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, MacAddr, 0, NULL); } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, (u8 *)dev->dev_addr, 0, NULL); else setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, MacAddr, 0, NULL); } if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { MacAddr = CAM_CONST_BROAD; for (EntryId = 1; EntryId < 4; EntryId++) { setKey(dev, EntryId, EntryId, priv->ieee80211->group_key_type, MacAddr, 0, NULL); } if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 0, 0, priv->ieee80211->group_key_type, CAM_CONST_ADDR[0], 0, NULL); } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { MacAddr = CAM_CONST_BROAD; for (EntryId = 1; EntryId < 4; EntryId++) { setKey(dev, EntryId, EntryId, priv->ieee80211->group_key_type, MacAddr, 0, NULL); } if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 0, 0, priv->ieee80211->group_key_type, CAM_CONST_ADDR[0], 0, NULL); } } /* This function is used to fix Tx/Rx stop bug temporarily. * This function will do "system reset" to NIC when Tx or Rx is stuck. * The method checking Tx/Rx stuck of this function is supported by FW, * which reports Tx and Rx counter to register 0x128 and 0x130. */ static void rtl819x_ifsilentreset(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); u8 reset_times = 0; int reset_status = 0; struct ieee80211_device *ieee = priv->ieee80211; /* If we need to check CCK stop, please uncomment this line. */ /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ if (priv->ResetProgress == RESET_TYPE_NORESET) { RESET_START: RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); /* Set the variable for reset. */ priv->ResetProgress = RESET_TYPE_SILENT; mutex_lock(&priv->wx_mutex); if (priv->up == 0) { RT_TRACE(COMP_ERR, "%s():the driver is not up! return\n", __func__); mutex_unlock(&priv->wx_mutex); return; } priv->up = 0; RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n", __func__); rtl8192_rtx_disable(dev); rtl8192_cancel_deferred_work(priv); deinit_hal_dm(dev); del_timer_sync(&priv->watch_dog_timer); ieee->sync_scan_hurryup = 1; if (ieee->state == IEEE80211_LINKED) { mutex_lock(&ieee->wx_mutex); netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); ieee80211_stop_send_beacons(priv->ieee80211); del_timer_sync(&ieee->associate_timer); cancel_delayed_work(&ieee->associate_retry_wq); ieee80211_stop_scan(ieee); netif_carrier_off(dev); mutex_unlock(&ieee->wx_mutex); } else { netdev_dbg(dev, "ieee->state is NOT LINKED\n"); ieee80211_softmac_stop_protocol(priv->ieee80211); } mutex_unlock(&priv->wx_mutex); RT_TRACE(COMP_RESET, "%s():<==========down process is finished\n", __func__); RT_TRACE(COMP_RESET, "%s():===========>start up the driver\n", __func__); reset_status = _rtl8192_up(dev); RT_TRACE(COMP_RESET, "%s():<===========up process is finished\n", __func__); if (reset_status == -EAGAIN) { if (reset_times < 3) { reset_times++; goto RESET_START; } else { RT_TRACE(COMP_ERR, " ERR!!! %s(): Reset Failed!!\n", __func__); } } ieee->is_silent_reset = 1; EnableHWSecurityConfig8192(dev); if (ieee->state == IEEE80211_LINKED && ieee->iw_mode == IW_MODE_INFRA) { ieee->set_chan(ieee->dev, ieee->current_network.channel); queue_work(ieee->wq, &ieee->associate_complete_wq); } else if (ieee->state == IEEE80211_LINKED && ieee->iw_mode == IW_MODE_ADHOC) { ieee->set_chan(ieee->dev, ieee->current_network.channel); ieee->link_change(ieee->dev); ieee80211_start_send_beacons(ieee); if (ieee->data_hard_resume) ieee->data_hard_resume(ieee->dev); netif_carrier_on(ieee->dev); } CamRestoreAllEntry(dev); priv->ResetProgress = RESET_TYPE_NORESET; priv->reset_count++; priv->bForcedSilentReset = false; priv->bResetInProgress = false; /* For test --> force write UFWP. */ write_nic_byte(dev, UFWP, 1); RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n", priv->reset_count); } } static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, u32 *TotalRxDataNum) { u16 SlotIndex; u8 i; *TotalRxBcnNum = 0; *TotalRxDataNum = 0; SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % (priv->ieee80211->LinkDetectInfo.SlotNum); priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; } } static void rtl819x_watchdog_wqcallback(struct work_struct *work) { struct delayed_work *dwork = to_delayed_work(work); struct r8192_priv *priv = container_of(dwork, struct r8192_priv, watch_dog_wq); struct net_device *dev = priv->ieee80211->dev; struct ieee80211_device *ieee = priv->ieee80211; RESET_TYPE ResetType = RESET_TYPE_NORESET; static u8 check_reset_cnt; bool bBusyTraffic = false; u32 TotalRxBcnNum = 0; u32 TotalRxDataNum = 0; if (!priv->up) return; hal_dm_watchdog(dev); /* to get busy traffic condition */ if (ieee->state == IEEE80211_LINKED) { if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { bBusyTraffic = true; } ieee->LinkDetectInfo.NumRxOkInPeriod = 0; ieee->LinkDetectInfo.NumTxOkInPeriod = 0; ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; } /* for AP roaming */ if (priv->ieee80211->state == IEEE80211_LINKED && priv->ieee80211->iw_mode == IW_MODE_INFRA) { rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); if ((TotalRxBcnNum + TotalRxDataNum) == 0) { #ifdef TODO if (rfState == eRfOff) RT_TRACE(COMP_ERR, "========>%s()\n", __func__); #endif netdev_dbg(dev, "===>%s(): AP is power off, connect another one\n", __func__); priv->ieee80211->state = IEEE80211_ASSOCIATING; notify_wx_assoc_event(priv->ieee80211); RemovePeerTS(priv->ieee80211, priv->ieee80211->current_network.bssid); priv->ieee80211->link_change(dev); queue_work(priv->ieee80211->wq, &priv->ieee80211->associate_procedure_wq); } } priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; /* check if reset the driver */ if (check_reset_cnt++ >= 3) { ResetType = rtl819x_ifcheck_resetornot(dev); check_reset_cnt = 3; } /* This is control by OID set in Pomelo */ if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && (priv->bForcedSilentReset || (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { RT_TRACE(COMP_RESET, "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", __func__, priv->force_reset, priv->ResetProgress, priv->bForcedSilentReset, priv->bDisableNormalResetCheck, ResetType); rtl819x_ifsilentreset(dev); } priv->force_reset = false; priv->bForcedSilentReset = false; priv->bResetInProgress = false; RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); } static void watch_dog_timer_callback(struct timer_list *t) { struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); schedule_delayed_work(&priv->watch_dog_wq, 0); mod_timer(&priv->watch_dog_timer, jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); } static int _rtl8192_up(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int init_status = 0; priv->up = 1; priv->ieee80211->ieee_up = 1; RT_TRACE(COMP_INIT, "Bringing up iface"); init_status = rtl8192_adapter_start(dev); if (!init_status) { RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", __func__); priv->up = priv->ieee80211->ieee_up = 0; return -EAGAIN; } RT_TRACE(COMP_INIT, "start adapter finished\n"); rtl8192_rx_enable(dev); if (priv->ieee80211->state != IEEE80211_LINKED) ieee80211_softmac_start_protocol(priv->ieee80211); ieee80211_reset_queue(priv->ieee80211); watch_dog_timer_callback(&priv->watch_dog_timer); if (!netif_queue_stopped(dev)) netif_start_queue(dev); else netif_wake_queue(dev); return 0; } static int rtl8192_open(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int ret; mutex_lock(&priv->wx_mutex); ret = rtl8192_up(dev); mutex_unlock(&priv->wx_mutex); return ret; } int rtl8192_up(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); if (priv->up == 1) return -1; return _rtl8192_up(dev); } static int rtl8192_close(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int ret; mutex_lock(&priv->wx_mutex); ret = rtl8192_down(dev); mutex_unlock(&priv->wx_mutex); return ret; } int rtl8192_down(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int i; if (priv->up == 0) return -1; priv->up = 0; priv->ieee80211->ieee_up = 0; RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); /* FIXME */ if (!netif_queue_stopped(dev)) netif_stop_queue(dev); rtl8192_rtx_disable(dev); /* Tx related queue release */ for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); for (i = 0; i < MAX_QUEUE_SIZE; i++) skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); /* as cancel_delayed_work will del work->timer, so if work is not * defined as struct delayed_work, it will corrupt */ rtl8192_cancel_deferred_work(priv); deinit_hal_dm(dev); del_timer_sync(&priv->watch_dog_timer); ieee80211_softmac_stop_protocol(priv->ieee80211); memset(&priv->ieee80211->current_network, 0, offsetof(struct ieee80211_network, list)); RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); return 0; } void rtl8192_commit(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); int reset_status = 0; if (priv->up == 0) return; priv->up = 0; rtl8192_cancel_deferred_work(priv); del_timer_sync(&priv->watch_dog_timer); ieee80211_softmac_stop_protocol(priv->ieee80211); rtl8192_rtx_disable(dev); reset_status = _rtl8192_up(dev); } static void rtl8192_restart(struct work_struct *work) { struct r8192_priv *priv = container_of(work, struct r8192_priv, reset_wq); struct net_device *dev = priv->ieee80211->dev; mutex_lock(&priv->wx_mutex); rtl8192_commit(dev); mutex_unlock(&priv->wx_mutex); } static void r8192_set_multicast(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); short promisc; /* FIXME FIXME */ promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; if (promisc != priv->promisc) priv->promisc = promisc; } static int r8192_set_mac_adr(struct net_device *dev, void *mac) { struct r8192_priv *priv = ieee80211_priv(dev); struct sockaddr *addr = mac; mutex_lock(&priv->wx_mutex); ether_addr_copy(dev->dev_addr, addr->sa_data); schedule_work(&priv->reset_wq); mutex_unlock(&priv->wx_mutex); return 0; } /* based on ipw2200 driver */ static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct iwreq *wrq = (struct iwreq *)rq; int ret = -1; struct ieee80211_device *ieee = priv->ieee80211; u32 key[4]; u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; struct iw_point *p = &wrq->u.data; struct ieee_param *ipw = NULL; mutex_lock(&priv->wx_mutex); if (p->length < sizeof(struct ieee_param) || !p->pointer) { ret = -EINVAL; goto out; } ipw = memdup_user(p->pointer, p->length); if (IS_ERR(ipw)) { ret = PTR_ERR(ipw); goto out; } switch (cmd) { case RTL_IOCTL_WPA_SUPPLICANT: /* parse here for HW security */ if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { if (ipw->u.crypt.set_tx) { if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { ieee->pairwise_key_type = KEY_TYPE_CCMP; } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { ieee->pairwise_key_type = KEY_TYPE_TKIP; } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { if (ipw->u.crypt.key_len == 13) ieee->pairwise_key_type = KEY_TYPE_WEP104; else if (ipw->u.crypt.key_len == 5) ieee->pairwise_key_type = KEY_TYPE_WEP40; } else { ieee->pairwise_key_type = KEY_TYPE_NA; } if (ieee->pairwise_key_type) { memcpy((u8 *)key, ipw->u.crypt.key, 16); EnableHWSecurityConfig8192(dev); /* We fill both index entry and 4th * entry for pairwise key as in IPW * interface, adhoc will only get here, * so we need index entry for its * default key serching! */ setKey(dev, 4, ipw->u.crypt.idx, ieee->pairwise_key_type, (u8 *)ieee->ap_mac_addr, 0, key); if (ieee->auth_mode != 2) setKey(dev, ipw->u.crypt.idx, ipw->u.crypt.idx, ieee->pairwise_key_type, (u8 *)ieee->ap_mac_addr, 0, key); } } else { memcpy((u8 *)key, ipw->u.crypt.key, 16); if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { ieee->group_key_type = KEY_TYPE_CCMP; } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { ieee->group_key_type = KEY_TYPE_TKIP; } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { if (ipw->u.crypt.key_len == 13) ieee->group_key_type = KEY_TYPE_WEP104; else if (ipw->u.crypt.key_len == 5) ieee->group_key_type = KEY_TYPE_WEP40; } else { ieee->group_key_type = KEY_TYPE_NA; } if (ieee->group_key_type) { setKey(dev, ipw->u.crypt.idx, /* KeyIndex */ ipw->u.crypt.idx, /* KeyType */ ieee->group_key_type, /* MacAddr */ broadcast_addr, /* DefaultKey */ 0, /* KeyContent */ key); } } } ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, &wrq->u.data); break; default: ret = -EOPNOTSUPP; break; } kfree(ipw); ipw = NULL; out: mutex_unlock(&priv->wx_mutex); return ret; } static u8 HwRateToMRate90(bool bIsHT, u8 rate) { u8 ret_rate = 0xff; if (!bIsHT) { switch (rate) { case DESC90_RATE1M: ret_rate = MGN_1M; break; case DESC90_RATE2M: ret_rate = MGN_2M; break; case DESC90_RATE5_5M: ret_rate = MGN_5_5M; break; case DESC90_RATE11M: ret_rate = MGN_11M; break; case DESC90_RATE6M: ret_rate = MGN_6M; break; case DESC90_RATE9M: ret_rate = MGN_9M; break; case DESC90_RATE12M: ret_rate = MGN_12M; break; case DESC90_RATE18M: ret_rate = MGN_18M; break; case DESC90_RATE24M: ret_rate = MGN_24M; break; case DESC90_RATE36M: ret_rate = MGN_36M; break; case DESC90_RATE48M: ret_rate = MGN_48M; break; case DESC90_RATE54M: ret_rate = MGN_54M; break; default: ret_rate = 0xff; RT_TRACE(COMP_RECV, "%s: Non supported Rate [%x], bIsHT = %d!!!\n", __func__, rate, bIsHT); break; } } else { switch (rate) { case DESC90_RATEMCS0: ret_rate = MGN_MCS0; break; case DESC90_RATEMCS1: ret_rate = MGN_MCS1; break; case DESC90_RATEMCS2: ret_rate = MGN_MCS2; break; case DESC90_RATEMCS3: ret_rate = MGN_MCS3; break; case DESC90_RATEMCS4: ret_rate = MGN_MCS4; break; case DESC90_RATEMCS5: ret_rate = MGN_MCS5; break; case DESC90_RATEMCS6: ret_rate = MGN_MCS6; break; case DESC90_RATEMCS7: ret_rate = MGN_MCS7; break; case DESC90_RATEMCS8: ret_rate = MGN_MCS8; break; case DESC90_RATEMCS9: ret_rate = MGN_MCS9; break; case DESC90_RATEMCS10: ret_rate = MGN_MCS10; break; case DESC90_RATEMCS11: ret_rate = MGN_MCS11; break; case DESC90_RATEMCS12: ret_rate = MGN_MCS12; break; case DESC90_RATEMCS13: ret_rate = MGN_MCS13; break; case DESC90_RATEMCS14: ret_rate = MGN_MCS14; break; case DESC90_RATEMCS15: ret_rate = MGN_MCS15; break; case DESC90_RATEMCS32: ret_rate = 0x80 | 0x20; break; default: ret_rate = 0xff; RT_TRACE(COMP_RECV, "%s: Non supported Rate [%x], bIsHT = %d!!!\n", __func__, rate, bIsHT); break; } } return ret_rate; } /** * Function: UpdateRxPktTimeStamp * Overview: Record the TSF time stamp when receiving a packet * * Input: * PADAPTER Adapter * PRT_RFD pRfd, * * Output: * PRT_RFD pRfd * (pRfd->Status.TimeStampHigh is updated) * (pRfd->Status.TimeStampLow is updated) * Return: * None */ static void UpdateRxPktTimeStamp8190(struct net_device *dev, struct ieee80211_rx_stats *stats) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); if (stats->bIsAMPDU && !stats->bFirstMPDU) { stats->mac_time[0] = priv->LastRxDescTSFLow; stats->mac_time[1] = priv->LastRxDescTSFHigh; } else { priv->LastRxDescTSFLow = stats->mac_time[0]; priv->LastRxDescTSFHigh = stats->mac_time[1]; } } /* 0-100 index. */ static long rtl819x_translate_todbm(u8 signal_strength_index) { long signal_power; /* in dBm. */ /* Translate to dBm (x=0.5y-95). */ signal_power = (long)((signal_strength_index + 1) >> 1); signal_power -= 95; return signal_power; } /* We can not declare RSSI/EVM total value of sliding window to * be a local static. Otherwise, it may increase when we return from S3/S4. The * value will be kept in memory or disk. Declare the value in the adaptor * and it will be reinitialized when returned from S3/S4. */ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, struct ieee80211_rx_stats *pprevious_stats, struct ieee80211_rx_stats *pcurrent_stats) { bool bcheck = false; u8 rfpath; u32 nspatial_stream, tmp_val; static u32 slide_rssi_index, slide_rssi_statistics; static u32 slide_evm_index, slide_evm_statistics; static u32 last_rssi, last_evm; static u32 slide_beacon_adc_pwdb_index; static u32 slide_beacon_adc_pwdb_statistics; static u32 last_beacon_adc_pwdb; struct rtl_80211_hdr_3addr *hdr; u16 sc; unsigned int seq; hdr = (struct rtl_80211_hdr_3addr *)buffer; sc = le16_to_cpu(hdr->seq_ctl); seq = WLAN_GET_SEQ_SEQ(sc); /* to record the sequence number */ pcurrent_stats->Seq_Num = seq; /* Check whether we should take the previous packet into accounting */ if (!pprevious_stats->bIsAMPDU) { /* if previous packet is not aggregated packet */ bcheck = true; } if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; priv->stats.slide_rssi_total -= last_rssi; } priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; priv->stats.slide_signal_strength[slide_rssi_index++] = pprevious_stats->SignalStrength; if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) slide_rssi_index = 0; /* <1> Showed on UI for user, in dbm */ tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); pcurrent_stats->rssi = priv->stats.signal_strength; /* If the previous packet does not match the criteria, neglect it */ if (!pprevious_stats->bPacketMatchBSSID) { if (!pprevious_stats->bToSelfBA) return; } if (!bcheck) return; /* only rtl8190 supported * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); */ /* Check RSSI */ priv->stats.num_process_phyinfo++; /* record the general signal strength to the sliding window. */ /* <2> Showed on UI for engineering * hardware does not provide rssi information for each rf path in CCK */ if (!pprevious_stats->bIsCCK && (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, rfpath)) continue; if (priv->stats.rx_rssi_percentage[rfpath] == 0) priv->stats.rx_rssi_percentage[rfpath] = pprevious_stats->RxMIMOSignalStrength[rfpath]; if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { priv->stats.rx_rssi_percentage[rfpath] = ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; } else { priv->stats.rx_rssi_percentage[rfpath] = ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); } RT_TRACE(COMP_DBG, "priv->stats.rx_rssi_percentage[rfPath] = %d\n", priv->stats.rx_rssi_percentage[rfpath]); } } /* Check PWDB. */ RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", pprevious_stats->bIsCCK ? "CCK" : "OFDM", pprevious_stats->RxPWDBAll); if (pprevious_stats->bPacketBeacon) { /* record the beacon pwdb to the sliding window. */ if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; } priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; slide_beacon_adc_pwdb_index++; if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) slide_beacon_adc_pwdb_index = 0; pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; if (pprevious_stats->RxPWDBAll >= 3) pprevious_stats->RxPWDBAll -= 3; } RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", pprevious_stats->bIsCCK ? "CCK" : "OFDM", pprevious_stats->RxPWDBAll); if (pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA) { if (priv->undecorated_smoothed_pwdb < 0) /* initialize */ priv->undecorated_smoothed_pwdb = pprevious_stats->RxPWDBAll; if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { priv->undecorated_smoothed_pwdb = (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; } else { priv->undecorated_smoothed_pwdb = (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); } } /* Check EVM */ /* record the general EVM to the sliding window. */ if (pprevious_stats->SignalQuality) { if (pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA) { if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; last_evm = priv->stats.slide_evm[slide_evm_index]; priv->stats.slide_evm_total -= last_evm; } priv->stats.slide_evm_total += pprevious_stats->SignalQuality; priv->stats.slide_evm[slide_evm_index++] = pprevious_stats->SignalQuality; if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) slide_evm_index = 0; /* <1> Showed on UI for user, in percentage. */ tmp_val = priv->stats.slide_evm_total / slide_evm_statistics; priv->stats.signal_quality = tmp_val; /* Showed on UI for user in Windows Vista, * for Link quality. */ priv->stats.last_signal_strength_inpercent = tmp_val; } /* <2> Showed on UI for engineering */ if (pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA) { for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; priv->stats.rx_evm_percentage[nspatial_stream] = ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); } } } } } /*----------------------------------------------------------------------------- * Function: rtl819x_query_rxpwrpercentage() * * Overview: * * Input: char antpower * * Output: NONE * * Return: 0-100 percentage *--------------------------------------------------------------------------- */ static u8 rtl819x_query_rxpwrpercentage(s8 antpower) { if ((antpower <= -100) || (antpower >= 20)) return 0; else if (antpower >= 0) return 100; else return 100 + antpower; } /* QueryRxPwrPercentage */ static u8 rtl819x_evm_dbtopercentage(s8 value) { s8 ret_val; ret_val = value; if (ret_val >= 0) ret_val = 0; if (ret_val <= -33) ret_val = -33; ret_val = 0 - ret_val; ret_val *= 3; if (ret_val == 99) ret_val = 100; return ret_val; } /* We want good-looking for signal strength/quality */ static long rtl819x_signal_scale_mapping(long currsig) { long retsig; /* Step 1. Scale mapping. */ if (currsig >= 61 && currsig <= 100) retsig = 90 + ((currsig - 60) / 4); else if (currsig >= 41 && currsig <= 60) retsig = 78 + ((currsig - 40) / 2); else if (currsig >= 31 && currsig <= 40) retsig = 66 + (currsig - 30); else if (currsig >= 21 && currsig <= 30) retsig = 54 + (currsig - 20); else if (currsig >= 5 && currsig <= 20) retsig = 42 + (((currsig - 5) * 2) / 3); else if (currsig == 4) retsig = 36; else if (currsig == 3) retsig = 27; else if (currsig == 2) retsig = 18; else if (currsig == 1) retsig = 9; else retsig = currsig; return retsig; } static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) { if (pdrvinfo->RxHT) return false; switch (pdrvinfo->RxRate) { case DESC90_RATE1M: case DESC90_RATE2M: case DESC90_RATE5_5M: case DESC90_RATE11M: return true; default: return false; } } static void rtl8192_query_rxphystatus(struct r8192_priv *priv, struct ieee80211_rx_stats *pstats, struct rx_drvinfo_819x_usb *pdrvinfo, struct ieee80211_rx_stats *precord_stats, bool bpacket_match_bssid, bool bpacket_toself, bool bPacketBeacon, bool bToSelfBA) { phy_sts_ofdm_819xusb_t *pofdm_buf; phy_sts_cck_819xusb_t *pcck_buf; struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; u8 *prxpkt; u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; s8 rx_pwr[4], rx_pwr_all = 0; s8 rx_snrX, rx_evmX; u8 evm, pwdb_all; u32 RSSI, total_rssi = 0; u8 is_cck_rate = 0; u8 rf_rx_num = 0; u8 sq; priv->stats.numqry_phystatus++; is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); /* Record it for next packet processing */ memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); pstats->bPacketMatchBSSID = precord_stats->bPacketMatchBSSID = bpacket_match_bssid; pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; prxpkt = (u8 *)pdrvinfo; /* Move pointer to the 16th bytes. Phy status start address. */ prxpkt += sizeof(struct rx_drvinfo_819x_usb); /* Initial the cck and ofdm buffer pointer */ pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; pstats->RxMIMOSignalQuality[0] = -1; pstats->RxMIMOSignalQuality[1] = -1; precord_stats->RxMIMOSignalQuality[0] = -1; precord_stats->RxMIMOSignalQuality[1] = -1; if (is_cck_rate) { /* (1)Hardware does not provide RSSI for CCK */ /* (2)PWDB, Average PWDB calculated by hardware * (for rate adaptive) */ u8 report; priv->stats.numqry_phystatusCCK++; if (!priv->bCckHighPower) { report = pcck_buf->cck_agc_rpt & 0xc0; report >>= 6; switch (report) { case 0x3: rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); break; case 0x2: rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); break; case 0x1: rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); break; case 0x0: rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); break; } } else { report = pcck_buf->cck_agc_rpt & 0x60; report >>= 5; switch (report) { case 0x3: rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); break; case 0x2: rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); break; case 0x1: rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); break; case 0x0: rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); break; } } pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; pstats->RecvSignalPower = pwdb_all; /* (3) Get Signal Quality (EVM) */ if (pstats->RxPWDBAll > 40) { sq = 100; } else { sq = pcck_buf->sq_rpt; if (pcck_buf->sq_rpt > 64) sq = 0; else if (pcck_buf->sq_rpt < 20) sq = 100; else sq = ((64 - sq) * 100) / 44; } pstats->SignalQuality = precord_stats->SignalQuality = sq; pstats->RxMIMOSignalQuality[0] = precord_stats->RxMIMOSignalQuality[0] = sq; pstats->RxMIMOSignalQuality[1] = precord_stats->RxMIMOSignalQuality[1] = -1; } else { priv->stats.numqry_phystatusHT++; /* (1)Get RSSI for HT rate */ for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { /* We will judge RF RX path now. */ if (priv->brfpath_rxenable[i]) rf_rx_num++; else continue; if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) continue; rx_pwr[i] = ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; /* Get Rx snr value in DB */ tmp_rxsnr = pofdm_buf->rxsnr_X[i]; rx_snrX = (s8)(tmp_rxsnr); rx_snrX /= 2; priv->stats.rxSNRdB[i] = (long)rx_snrX; /* Translate DBM to percentage. */ RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); total_rssi += RSSI; /* Record Signal Strength for next packet */ pstats->RxMIMOSignalStrength[i] = (u8)RSSI; precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; } /* (2)PWDB, Average PWDB calculated by hardware * (for rate adaptive) */ rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; pstats->RxPower = precord_stats->RxPower = rx_pwr_all; /* (3)EVM of HT rate */ if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && pdrvinfo->RxRate <= DESC90_RATEMCS15) /* both spatial stream make sense */ max_spatial_stream = 2; else /* only spatial stream 1 makes sense */ max_spatial_stream = 1; for (i = 0; i < max_spatial_stream; i++) { tmp_rxevm = pofdm_buf->rxevm_X[i]; rx_evmX = (s8)(tmp_rxevm); /* Do not use shift operation like "rx_evmX >>= 1" * because the compiler of free build environment will * set the most significant bit to "zero" when doing * shifting operation which may change a negative value * to positive one, then the dbm value (which is * supposed to be negative) is not correct anymore. */ rx_evmX /= 2; /* dbm */ evm = rtl819x_evm_dbtopercentage(rx_evmX); if (i == 0) /* Fill value in RFD, Get the first spatial * stream only */ pstats->SignalQuality = precord_stats->SignalQuality = evm & 0xff; pstats->RxMIMOSignalQuality[i] = precord_stats->RxMIMOSignalQuality[i] = evm & 0xff; } /* record rx statistics for debug */ rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) &rxsc_sgien_exflg; if (pdrvinfo->BW) /* 40M channel */ priv->stats.received_bwtype[1 + prxsc->rxsc]++; else /* 20M channel */ priv->stats.received_bwtype[0]++; } /* UI BSS List signal strength(in percentage), make it good looking, * from 0~100. It is assigned to the BSS List in * GetValueFromBeaconOrProbeRsp(). */ if (is_cck_rate) { pstats->SignalStrength = precord_stats->SignalStrength = (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); } else { /* We can judge RX path number now. */ if (rf_rx_num != 0) { pstats->SignalStrength = precord_stats->SignalStrength = (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); } } } /* QueryRxPhyStatus8190Pci */ static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, struct ieee80211_rx_stats *ptarget_stats) { ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; ptarget_stats->Seq_Num = psrc_stats->Seq_Num; } static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, struct ieee80211_rx_stats *pstats, struct rx_drvinfo_819x_usb *pdrvinfo) { /* TODO: We must only check packet for current MAC address. * Not finish */ struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; struct net_device *dev = info->dev; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); bool bpacket_match_bssid, bpacket_toself; bool bPacketBeacon = false, bToSelfBA = false; static struct ieee80211_rx_stats previous_stats; struct rtl_80211_hdr_3addr *hdr; u16 fc, type; /* Get Signal Quality for only RX data queue (but not command queue) */ u8 *tmp_buf; u8 *praddr; /* Get MAC frame start address. */ tmp_buf = (u8 *)skb->data; hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; fc = le16_to_cpu(hdr->frame_ctl); type = WLAN_FC_GET_TYPE(fc); praddr = hdr->addr1; /* Check if the received packet is acceptable. */ bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); bpacket_toself = bpacket_match_bssid & (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) bPacketBeacon = true; if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { if ((ether_addr_equal(praddr, dev->dev_addr))) bToSelfBA = true; } if (bpacket_match_bssid) priv->stats.numpacket_matchbssid++; if (bpacket_toself) priv->stats.numpacket_toself++; /* Process PHY information for previous packet (RSSI/PWDB/EVM) * Because phy information is contained in the last packet of AMPDU * only, so driver should process phy information of previous packet */ rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, bpacket_match_bssid, bpacket_toself, bPacketBeacon, bToSelfBA); rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); } /** * Function: UpdateReceivedRateHistogramStatistics * Overview: Record the received data rate * * Input: * struct net_device *dev * struct ieee80211_rx_stats *stats * * Output: * * (priv->stats.ReceivedRateHistogram[] is updated) * Return: * None */ static void UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, struct ieee80211_rx_stats *stats) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); /* 0: Total, 1:OK, 2:CRC, 3:ICV */ u32 rcvType = 1; u32 rateIndex; /* 1: short preamble/GI, 0: long preamble/GI */ u32 preamble_guardinterval; if (stats->bCRC) rcvType = 2; else if (stats->bICV) rcvType = 3; if (stats->bShortPreamble) preamble_guardinterval = 1; /* short */ else preamble_guardinterval = 0; /* long */ switch (stats->rate) { /* CCK rate */ case MGN_1M: rateIndex = 0; break; case MGN_2M: rateIndex = 1; break; case MGN_5_5M: rateIndex = 2; break; case MGN_11M: rateIndex = 3; break; /* Legacy OFDM rate */ case MGN_6M: rateIndex = 4; break; case MGN_9M: rateIndex = 5; break; case MGN_12M: rateIndex = 6; break; case MGN_18M: rateIndex = 7; break; case MGN_24M: rateIndex = 8; break; case MGN_36M: rateIndex = 9; break; case MGN_48M: rateIndex = 10; break; case MGN_54M: rateIndex = 11; break; /* 11n High throughput rate */ case MGN_MCS0: rateIndex = 12; break; case MGN_MCS1: rateIndex = 13; break; case MGN_MCS2: rateIndex = 14; break; case MGN_MCS3: rateIndex = 15; break; case MGN_MCS4: rateIndex = 16; break; case MGN_MCS5: rateIndex = 17; break; case MGN_MCS6: rateIndex = 18; break; case MGN_MCS7: rateIndex = 19; break; case MGN_MCS8: rateIndex = 20; break; case MGN_MCS9: rateIndex = 21; break; case MGN_MCS10: rateIndex = 22; break; case MGN_MCS11: rateIndex = 23; break; case MGN_MCS12: rateIndex = 24; break; case MGN_MCS13: rateIndex = 25; break; case MGN_MCS14: rateIndex = 26; break; case MGN_MCS15: rateIndex = 27; break; default: rateIndex = 28; break; } priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ priv->stats.received_rate_histogram[rcvType][rateIndex]++; } static void query_rxdesc_status(struct sk_buff *skb, struct ieee80211_rx_stats *stats, bool bIsRxAggrSubframe) { struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; struct net_device *dev = info->dev; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct rx_drvinfo_819x_usb *driver_info = NULL; /* Get Rx Descriptor Information */ struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; stats->Length = desc->Length; stats->RxDrvInfoSize = desc->RxDrvInfoSize; stats->RxBufShift = 0; stats->bICV = desc->ICV; stats->bCRC = desc->CRC32; stats->bHwError = stats->bCRC | stats->bICV; /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ stats->Decrypted = !desc->SWDec; if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) stats->bHwError = false; else stats->bHwError = stats->bCRC | stats->bICV; if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) stats->bHwError |= 1; /* Get Driver Info */ /* TODO: Need to verify it on FGPA platform * Driver info are written to the RxBuffer following rx desc */ if (stats->RxDrvInfoSize != 0) { driver_info = (struct rx_drvinfo_819x_usb *)(skb->data + sizeof(struct rx_desc_819x_usb) + stats->RxBufShift ); /* unit: 0.5M */ /* TODO */ if (!stats->bHwError) { u8 ret_rate; ret_rate = HwRateToMRate90(driver_info->RxHT, driver_info->RxRate); if (ret_rate == 0xff) { /* Abnormal Case: Receive CRC OK packet with Rx * descriptor indicating non supported rate. * Special Error Handling here */ stats->bHwError = 1; /* Set 1M rate by default */ stats->rate = MGN_1M; } else { stats->rate = ret_rate; } } else { stats->rate = 0x02; } stats->bShortPreamble = driver_info->SPLCP; UpdateReceivedRateHistogramStatistics8190(dev, stats); stats->bIsAMPDU = (driver_info->PartAggr == 1); stats->bFirstMPDU = (driver_info->PartAggr == 1) && (driver_info->FirstAGGR == 1); stats->TimeStampLow = driver_info->TSFL; UpdateRxPktTimeStamp8190(dev, stats); /* Rx A-MPDU */ if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) RT_TRACE(COMP_RXDESC, "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", driver_info->FirstAGGR, driver_info->PartAggr); } skb_pull(skb, sizeof(struct rx_desc_819x_usb)); /* Get Total offset of MPDU Frame Body */ if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { stats->bShift = 1; skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); } if (driver_info) { stats->RxIs40MHzPacket = driver_info->BW; TranslateRxSignalStuff819xUsb(skb, stats, driver_info); } } static void rtl8192_rx_nomal(struct sk_buff *skb) { struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; struct net_device *dev = info->dev; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct ieee80211_rx_stats stats = { .signal = 0, .noise = 0x100 - 98, .rate = 0, .freq = IEEE80211_24GHZ_BAND, }; u32 rx_pkt_len = 0; struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; bool unicast_packet = false; /* 20 is for ps-poll */ if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { /* first packet should not contain Rx aggregation header */ query_rxdesc_status(skb, &stats, false); /* TODO */ /* hardware related info */ /* Process the MPDU received */ skb_trim(skb, skb->len - 4/*sCrcLng*/); rx_pkt_len = skb->len; ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; unicast_packet = false; if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { /* TODO */ } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { /* TODO */ } else { /* unicast packet */ unicast_packet = true; } if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { dev_kfree_skb_any(skb); } else { priv->stats.rxoktotal++; if (unicast_packet) priv->stats.rxbytesunicast += rx_pkt_len; } } else { priv->stats.rxurberr++; netdev_dbg(dev, "actual_length: %d\n", skb->len); dev_kfree_skb_any(skb); } } static void rtl819xusb_process_received_packet(struct net_device *dev, struct ieee80211_rx_stats *pstats) { struct r8192_priv *priv = ieee80211_priv(dev); /* Get shifted bytes of Starting address of 802.11 header. */ pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); #ifdef TODO /* about HCT */ if (!Adapter->bInHctTest) CountRxErrStatistics(Adapter, pRfd); #endif #ifdef ENABLE_PS /* for adding ps function in future */ RT_RF_POWER_STATE rtState; /* When RF is off, we should not count the packet for hw/sw synchronize * reason, ie. there may be a duration while sw switch is changed and * hw switch is being changed. */ Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, (u8 *)(&rtState)); if (rtState == eRfOff) return; #endif priv->stats.rxframgment++; #ifdef TODO RmMonitorSignalStrength(Adapter, pRfd); #endif /* We have to release RFD and return if rx pkt is cmd pkt. */ if (rtl819xusb_rx_command_packet(dev, pstats)) return; #ifdef SW_CRC_CHECK SwCrcCheck(); #endif } static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, struct ieee80211_rx_stats *stats) { struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; /* Get Rx Descriptor Information */ stats->virtual_address = (u8 *)skb->data; stats->Length = desc->Length; stats->RxDrvInfoSize = 0; stats->RxBufShift = 0; stats->packetlength = stats->Length - scrclng; stats->fraglength = stats->packetlength; stats->fragoffset = 0; stats->ntotalfrag = 1; } static void rtl8192_rx_cmd(struct sk_buff *skb) { struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; struct net_device *dev = info->dev; /* TODO */ struct ieee80211_rx_stats stats = { .signal = 0, .noise = 0x100 - 98, .rate = 0, .freq = IEEE80211_24GHZ_BAND, }; if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { query_rx_cmdpkt_desc_status(skb, &stats); /* prfd->queue_id = 1; */ /* Process the command packet received. */ rtl819xusb_process_received_packet(dev, &stats); dev_kfree_skb_any(skb); } } static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv) { struct sk_buff *skb; struct rtl8192_rx_info *info; while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { info = (struct rtl8192_rx_info *)skb->cb; switch (info->out_pipe) { /* Nomal packet pipe */ case 3: priv->IrpPendingCount--; rtl8192_rx_nomal(skb); break; /* Command packet pipe */ case 9: RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", info->out_pipe); rtl8192_rx_cmd(skb); break; default: /* should never get here! */ RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", info->out_pipe); dev_kfree_skb(skb); break; } } } static const struct net_device_ops rtl8192_netdev_ops = { .ndo_open = rtl8192_open, .ndo_stop = rtl8192_close, .ndo_get_stats = rtl8192_stats, .ndo_tx_timeout = tx_timeout, .ndo_do_ioctl = rtl8192_ioctl, .ndo_set_rx_mode = r8192_set_multicast, .ndo_set_mac_address = r8192_set_mac_adr, .ndo_validate_addr = eth_validate_addr, .ndo_start_xmit = ieee80211_xmit, }; /**************************************************************************** * ---------------------------- USB_STUFF--------------------------- *****************************************************************************/ static int rtl8192_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct net_device *dev = NULL; struct r8192_priv *priv = NULL; struct usb_device *udev = interface_to_usbdev(intf); int ret; RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); dev = alloc_ieee80211(sizeof(struct r8192_priv)); if (!dev) return -ENOMEM; usb_set_intfdata(intf, dev); SET_NETDEV_DEV(dev, &intf->dev); priv = ieee80211_priv(dev); priv->ieee80211 = netdev_priv(dev); priv->udev = udev; dev->netdev_ops = &rtl8192_netdev_ops; dev->wireless_handlers = &r8192_wx_handlers_def; dev->type = ARPHRD_ETHER; dev->watchdog_timeo = HZ * 3; if (dev_alloc_name(dev, ifname) < 0) { RT_TRACE(COMP_INIT, "Oops: devname already taken! Trying wlan%%d...\n"); ifname = "wlan%d"; dev_alloc_name(dev, ifname); } RT_TRACE(COMP_INIT, "Driver probe completed1\n"); if (rtl8192_init(dev) != 0) { RT_TRACE(COMP_ERR, "Initialization failed"); ret = -ENODEV; goto fail; } netif_carrier_off(dev); netif_stop_queue(dev); ret = register_netdev(dev); if (ret) goto fail2; RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); rtl8192_proc_init_one(dev); RT_TRACE(COMP_INIT, "Driver probe completed\n"); return 0; fail2: rtl8192_down(dev); fail: kfree(priv->pFirmware); priv->pFirmware = NULL; rtl8192_usb_deleteendpoints(dev); msleep(10); free_ieee80211(dev); RT_TRACE(COMP_ERR, "wlan driver load failed\n"); return ret; } /* detach all the work and timer structure declared or inititialize * in r8192U_init function. */ static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) { cancel_work_sync(&priv->reset_wq); cancel_delayed_work(&priv->watch_dog_wq); cancel_delayed_work(&priv->update_beacon_wq); cancel_work_sync(&priv->qos_activate); } static void rtl8192_usb_disconnect(struct usb_interface *intf) { struct net_device *dev = usb_get_intfdata(intf); struct r8192_priv *priv = ieee80211_priv(dev); unregister_netdev(dev); RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); rtl8192_proc_remove_one(dev); rtl8192_down(dev); kfree(priv->pFirmware); priv->pFirmware = NULL; rtl8192_usb_deleteendpoints(dev); usleep_range(10000, 11000); free_ieee80211(dev); RT_TRACE(COMP_DOWN, "wlan driver removed\n"); } static int __init rtl8192_usb_module_init(void) { int ret; #ifdef CONFIG_IEEE80211_DEBUG ret = ieee80211_debug_init(); if (ret) { pr_err("ieee80211_debug_init() failed %d\n", ret); return ret; } #endif ret = ieee80211_crypto_init(); if (ret) { pr_err("ieee80211_crypto_init() failed %d\n", ret); return ret; } ret = ieee80211_crypto_tkip_init(); if (ret) { pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); return ret; } ret = ieee80211_crypto_ccmp_init(); if (ret) { pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); return ret; } ret = ieee80211_crypto_wep_init(); if (ret) { pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); return ret; } pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); RT_TRACE(COMP_INIT, "Initializing module"); RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); rtl8192_proc_module_init(); return usb_register(&rtl8192_usb_driver); } static void __exit rtl8192_usb_module_exit(void) { usb_deregister(&rtl8192_usb_driver); RT_TRACE(COMP_DOWN, "Exiting"); } void EnableHWSecurityConfig8192(struct net_device *dev) { u8 SECR_value = 0x0; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { SECR_value |= SCR_RxUseDK; SECR_value |= SCR_TxUseDK; } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { SECR_value |= SCR_RxUseDK; SECR_value |= SCR_TxUseDK; } /* add HWSec active enable here. * default using hwsec. when peer AP is in N mode only and * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates * it), use software security. when peer AP is in b,g,n mode mixed and * pairwise_key_type is none_aes, use g mode hw security. */ ieee->hwsec_active = 1; /* add hwsec_support flag to totol control hw_sec on/off */ if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { ieee->hwsec_active = 0; SECR_value &= ~SCR_RxDecEnable; } RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", __func__, ieee->hwsec_active, ieee->pairwise_key_type, SECR_value); write_nic_byte(dev, SECR, SECR_value); } void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType, u8 *MacAddr, u8 DefaultKey, u32 *KeyContent) { u32 TargetCommand = 0; u32 TargetContent = 0; u16 usConfig = 0; u8 i; if (EntryNo >= TOTAL_CAM_ENTRY) RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n"); RT_TRACE(COMP_SEC, "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", dev, EntryNo, KeyIndex, KeyType, MacAddr); if (DefaultKey) usConfig |= BIT(15) | (KeyType << 2); else usConfig |= BIT(15) | (KeyType << 2) | KeyIndex; for (i = 0; i < CAM_CONTENT_COUNT; i++) { TargetCommand = i + CAM_CONTENT_COUNT * EntryNo; TargetCommand |= BIT(31) | BIT(16); if (i == 0) { /* MAC|Config */ TargetContent = (u32)(*(MacAddr + 0)) << 16 | (u32)(*(MacAddr + 1)) << 24 | (u32)usConfig; write_nic_dword(dev, WCAMI, TargetContent); write_nic_dword(dev, RWCAM, TargetCommand); } else if (i == 1) { /* MAC */ TargetContent = (u32)(*(MacAddr + 2)) | (u32)(*(MacAddr + 3)) << 8 | (u32)(*(MacAddr + 4)) << 16 | (u32)(*(MacAddr + 5)) << 24; write_nic_dword(dev, WCAMI, TargetContent); write_nic_dword(dev, RWCAM, TargetCommand); } else { /* Key Material */ if (KeyContent) { write_nic_dword(dev, WCAMI, *(KeyContent + i - 2)); write_nic_dword(dev, RWCAM, TargetCommand); } } } } /*************************************************************************** * ------------------- module init / exit stubs ---------------- ****************************************************************************/ module_init(rtl8192_usb_module_init); module_exit(rtl8192_usb_module_exit);