1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 * Linux device driver for RTL8192U
5 * Based on the r8187 driver, which is:
6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
20 * The full GNU General Public License is included in this distribution in the
21 * file called LICENSE.
23 * Contact Information:
24 * Jerry chuang <wlanfae@realtek.com>
27 #ifndef CONFIG_FORCE_HARD_FLOAT
28 double __floatsidf(int i)
33 unsigned int __fixunsdfsi(double d)
38 double __adddf3(double a, double b)
43 double __addsf3(float a, float b)
48 double __subdf3(double a, double b)
53 double __extendsfdf2(float a)
59 #define CONFIG_RTL8192_IO_MAP
61 #include <linux/uaccess.h>
62 #include "r8192U_hw.h"
64 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
65 #include "r8180_93cx6.h" /* Card EEPROM */
66 #include "r8192U_wx.h"
67 #include "r819xU_phy.h"
68 #include "r819xU_phyreg.h"
69 #include "r819xU_cmdpkt.h"
70 #include "r8192U_dm.h"
71 #include <linux/usb.h>
72 #include <linux/slab.h>
73 #include <linux/proc_fs.h>
74 #include <linux/seq_file.h>
75 /* FIXME: check if 2.6.7 is ok */
78 /* set here to open your trace code. */
79 u32 rt_global_debug_component = COMP_DOWN |
81 COMP_ERR; /* always open err flags on */
83 #define TOTAL_CAM_ENTRY 32
84 #define CAM_CONTENT_COUNT 8
86 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
88 {USB_DEVICE(0x0bda, 0x8709)},
90 {USB_DEVICE(0x07aa, 0x0043)},
92 {USB_DEVICE(0x050d, 0x805E)},
94 {USB_DEVICE(0x0df6, 0x0031)},
96 {USB_DEVICE(0x1740, 0x9201)},
98 {USB_DEVICE(0x2001, 0x3301)},
100 {USB_DEVICE(0x5a57, 0x0290)},
102 {USB_DEVICE(0x043e, 0x7a01)},
106 MODULE_LICENSE("GPL");
107 MODULE_VERSION("V 1.1");
108 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
109 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
111 static char *ifname = "wlan%d";
112 static int hwwep = 1; /* default use hw. set 0 to use software security */
113 static int channels = 0x3fff;
117 module_param(ifname, charp, 0644);
118 module_param(hwwep, int, 0644);
119 module_param(channels, int, 0644);
121 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
122 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
123 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
125 static int rtl8192_usb_probe(struct usb_interface *intf,
126 const struct usb_device_id *id);
127 static void rtl8192_usb_disconnect(struct usb_interface *intf);
130 static struct usb_driver rtl8192_usb_driver = {
131 .name = RTL819xU_MODULE_NAME, /* Driver name */
132 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
133 .probe = rtl8192_usb_probe, /* probe fn */
134 .disconnect = rtl8192_usb_disconnect, /* remove fn */
135 .suspend = NULL, /* PM suspend fn */
136 .resume = NULL, /* PM resume fn */
140 struct CHANNEL_LIST {
145 static struct CHANNEL_LIST ChannelPlan[] = {
147 {{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},
149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
151 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
152 /* Spain. Change to ETSI. */
153 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
154 /* France. Change to ETSI. */
155 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
157 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
159 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
161 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
162 /* For 11a , TELEC */
163 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
165 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
166 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
167 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
170 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
172 int i, max_chan = -1, min_chan = -1;
173 struct ieee80211_device *ieee = priv->ieee80211;
175 switch (channel_plan) {
176 case COUNTRY_CODE_FCC:
177 case COUNTRY_CODE_IC:
178 case COUNTRY_CODE_ETSI:
179 case COUNTRY_CODE_SPAIN:
180 case COUNTRY_CODE_FRANCE:
181 case COUNTRY_CODE_MKK:
182 case COUNTRY_CODE_MKK1:
183 case COUNTRY_CODE_ISRAEL:
184 case COUNTRY_CODE_TELEC:
185 case COUNTRY_CODE_MIC:
187 ieee->bGlobalDomain = false;
188 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
189 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
194 "unknown rf chip, can't set channel map in function:%s()\n",
197 if (ChannelPlan[channel_plan].Len != 0) {
198 /* Clear old channel map */
199 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
200 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
201 /* Set new channel map */
202 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
203 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
205 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
210 case COUNTRY_CODE_GLOBAL_DOMAIN:
211 /* this flag enabled to follow 11d country IE setting,
212 * otherwise, it shall follow global domain settings.
214 GET_DOT11D_INFO(ieee)->bEnabled = 0;
216 ieee->bGlobalDomain = true;
227 static void CamResetAllEntry(struct net_device *dev)
230 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
231 * associate to AP. However, ResetKey is called on
232 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
233 * condition, Cam can not be reset because upper layer will not set
234 * this static key again.
236 ulcommand |= BIT(31) | BIT(30);
237 write_nic_dword(dev, RWCAM, ulcommand);
241 void write_cam(struct net_device *dev, u8 addr, u32 data)
243 write_nic_dword(dev, WCAMI, data);
244 write_nic_dword(dev, RWCAM, BIT(31) | BIT(16) | (addr & 0xff));
247 u32 read_cam(struct net_device *dev, u8 addr)
251 write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff));
252 read_nic_dword(dev, 0xa8, &data);
256 int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
259 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
260 struct usb_device *udev = priv->udev;
261 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
267 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
268 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
269 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
273 netdev_err(dev, "write_nic_byte_E TimeOut! status: %d\n",
280 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
283 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
284 struct usb_device *udev = priv->udev;
285 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
290 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
291 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
292 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
297 netdev_err(dev, "%s failure status: %d\n", __func__, status);
304 /* as 92U has extend page from 4 to 16, so modify functions below. */
305 int write_nic_byte(struct net_device *dev, int indx, u8 data)
309 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
310 struct usb_device *udev = priv->udev;
311 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
317 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
318 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
319 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
324 netdev_err(dev, "write_nic_byte TimeOut! status: %d\n", status);
332 int write_nic_word(struct net_device *dev, int indx, u16 data)
336 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
337 struct usb_device *udev = priv->udev;
338 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
344 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
345 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
346 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
351 netdev_err(dev, "write_nic_word TimeOut! status: %d\n", status);
359 int write_nic_dword(struct net_device *dev, int indx, u32 data)
363 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
364 struct usb_device *udev = priv->udev;
365 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
371 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
372 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
373 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
379 netdev_err(dev, "write_nic_dword TimeOut! status: %d\n",
389 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
392 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
393 struct usb_device *udev = priv->udev;
394 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
399 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
400 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
401 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
407 netdev_err(dev, "%s failure status: %d\n", __func__, status);
416 int read_nic_word(struct net_device *dev, int indx, u16 *data)
419 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
420 struct usb_device *udev = priv->udev;
421 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
426 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
427 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
428 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
434 netdev_err(dev, "%s failure status: %d\n", __func__, status);
441 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
444 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
445 struct usb_device *udev = priv->udev;
446 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
451 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
452 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
453 indx | 0xfe00, 0, usbdata, 2, HZ / 2);
458 netdev_err(dev, "%s failure status: %d\n", __func__, status);
465 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
469 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
470 struct usb_device *udev = priv->udev;
471 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
476 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
477 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
478 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
484 netdev_err(dev, "%s failure status: %d\n", __func__, status);
491 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
492 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
493 /* this might still called in what was the PHY rtl8185/rtl8192 common code
494 * plans are to possibility turn it again in one common code...
496 inline void force_pci_posting(struct net_device *dev)
500 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
501 static void rtl8192_restart(struct work_struct *work);
502 static void watch_dog_timer_callback(unsigned long data);
504 /****************************************************************************
505 * -----------------------------PROCFS STUFF-------------------------
506 ****************************************************************************/
508 static struct proc_dir_entry *rtl8192_proc;
510 static int proc_get_stats_ap(struct seq_file *m, void *v)
512 struct net_device *dev = m->private;
513 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
514 struct ieee80211_device *ieee = priv->ieee80211;
515 struct ieee80211_network *target;
517 list_for_each_entry(target, &ieee->network_list, list) {
518 const char *wpa = "non_WPA";
520 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
523 seq_printf(m, "%s %s\n", target->ssid, wpa);
529 static int proc_get_registers(struct seq_file *m, void *v)
531 struct net_device *dev = m->private;
532 int i, n, max = 0xff;
535 seq_puts(m, "\n####################page 0##################\n ");
537 for (n = 0; n <= max;) {
538 seq_printf(m, "\nD: %2x > ", n);
540 for (i = 0; i < 16 && n <= max; i++, n++) {
541 read_nic_byte(dev, 0x000 | n, &byte_rd);
542 seq_printf(m, "%2x ", byte_rd);
546 seq_puts(m, "\n####################page 1##################\n ");
547 for (n = 0; n <= max;) {
548 seq_printf(m, "\nD: %2x > ", n);
550 for (i = 0; i < 16 && n <= max; i++, n++) {
551 read_nic_byte(dev, 0x100 | n, &byte_rd);
552 seq_printf(m, "%2x ", byte_rd);
556 seq_puts(m, "\n####################page 3##################\n ");
557 for (n = 0; n <= max;) {
558 seq_printf(m, "\nD: %2x > ", n);
560 for (i = 0; i < 16 && n <= max; i++, n++) {
561 read_nic_byte(dev, 0x300 | n, &byte_rd);
562 seq_printf(m, "%2x ", byte_rd);
570 static int proc_get_stats_tx(struct seq_file *m, void *v)
572 struct net_device *dev = m->private;
573 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
576 "TX VI priority ok int: %lu\n"
577 "TX VI priority error int: %lu\n"
578 "TX VO priority ok int: %lu\n"
579 "TX VO priority error int: %lu\n"
580 "TX BE priority ok int: %lu\n"
581 "TX BE priority error int: %lu\n"
582 "TX BK priority ok int: %lu\n"
583 "TX BK priority error int: %lu\n"
584 "TX MANAGE priority ok int: %lu\n"
585 "TX MANAGE priority error int: %lu\n"
586 "TX BEACON priority ok int: %lu\n"
587 "TX BEACON priority error int: %lu\n"
588 "TX queue resume: %lu\n"
589 "TX queue stopped?: %d\n"
590 "TX fifo overflow: %lu\n"
595 "TX VI dropped: %lu\n"
596 "TX VO dropped: %lu\n"
597 "TX BE dropped: %lu\n"
598 "TX BK dropped: %lu\n"
599 "TX total data packets %lu\n",
600 priv->stats.txviokint,
602 priv->stats.txvookint,
604 priv->stats.txbeokint,
606 priv->stats.txbkokint,
608 priv->stats.txmanageokint,
609 priv->stats.txmanageerr,
610 priv->stats.txbeaconokint,
611 priv->stats.txbeaconerr,
612 priv->stats.txresumed,
613 netif_queue_stopped(dev),
614 priv->stats.txoverflow,
615 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
616 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
617 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
618 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
619 priv->stats.txvidrop,
620 priv->stats.txvodrop,
621 priv->stats.txbedrop,
622 priv->stats.txbkdrop,
623 priv->stats.txdatapkt
629 static int proc_get_stats_rx(struct seq_file *m, void *v)
631 struct net_device *dev = m->private;
632 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
636 "RX urb status error: %lu\n"
637 "RX invalid urb error: %lu\n",
638 priv->stats.rxoktotal,
639 priv->stats.rxstaterr,
640 priv->stats.rxurberr);
645 static void rtl8192_proc_module_init(void)
647 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
648 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
652 * seq_file wrappers for procfile show routines.
654 static int rtl8192_proc_open(struct inode *inode, struct file *file)
656 struct net_device *dev = proc_get_parent_data(inode);
657 int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
659 return single_open(file, show, dev);
662 static const struct file_operations rtl8192_proc_fops = {
663 .open = rtl8192_proc_open,
666 .release = single_release,
670 * Table of proc files we need to create.
672 struct rtl8192_proc_file {
674 int (*show)(struct seq_file *, void *);
677 static const struct rtl8192_proc_file rtl8192_proc_files[] = {
678 { "stats-rx", &proc_get_stats_rx },
679 { "stats-tx", &proc_get_stats_tx },
680 { "stats-ap", &proc_get_stats_ap },
681 { "registers", &proc_get_registers },
685 static void rtl8192_proc_init_one(struct net_device *dev)
687 const struct rtl8192_proc_file *f;
688 struct proc_dir_entry *dir;
691 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
694 "Unable to initialize /proc/net/rtl8192/%s\n",
699 for (f = rtl8192_proc_files; f->name[0]; f++) {
700 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
701 &rtl8192_proc_fops, f->show)) {
703 "Unable to initialize /proc/net/rtl8192/%s/%s\n",
711 static void rtl8192_proc_remove_one(struct net_device *dev)
713 remove_proc_subtree(dev->name, rtl8192_proc);
716 /****************************************************************************
717 * -----------------------------MISC STUFF-------------------------
718 *****************************************************************************/
720 short check_nic_enough_desc(struct net_device *dev, int queue_index)
722 struct r8192_priv *priv = ieee80211_priv(dev);
723 int used = atomic_read(&priv->tx_pending[queue_index]);
725 return (used < MAX_TX_URB);
728 static void tx_timeout(struct net_device *dev)
730 struct r8192_priv *priv = ieee80211_priv(dev);
732 schedule_work(&priv->reset_wq);
735 void rtl8192_update_msr(struct net_device *dev)
737 struct r8192_priv *priv = ieee80211_priv(dev);
740 read_nic_byte(dev, MSR, &msr);
741 msr &= ~MSR_LINK_MASK;
743 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
744 * msr must be updated if the state is ASSOCIATING.
745 * this is intentional and make sense for ad-hoc and
746 * master (see the create BSS/IBSS func)
748 if (priv->ieee80211->state == IEEE80211_LINKED) {
749 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
750 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
751 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
752 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
753 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
754 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
757 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
760 write_nic_byte(dev, MSR, msr);
763 void rtl8192_set_chan(struct net_device *dev, short ch)
765 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
767 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
770 /* this hack should avoid frame TX during channel setting*/
772 /* need to implement rf set channel here */
774 if (priv->rf_set_chan)
775 priv->rf_set_chan(dev, priv->chan);
779 static void rtl8192_rx_isr(struct urb *urb);
781 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
783 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
784 + pstats->RxBufShift);
787 static int rtl8192_rx_initiate(struct net_device *dev)
789 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
792 struct rtl8192_rx_info *info;
794 /* nomal packet rx procedure */
795 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
796 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
799 entry = usb_alloc_urb(0, GFP_KERNEL);
804 usb_fill_bulk_urb(entry, priv->udev,
805 usb_rcvbulkpipe(priv->udev, 3),
806 skb_tail_pointer(skb),
807 RX_URB_SIZE, rtl8192_rx_isr, skb);
808 info = (struct rtl8192_rx_info *)skb->cb;
811 info->out_pipe = 3; /* denote rx normal packet queue */
812 skb_queue_tail(&priv->rx_queue, skb);
813 usb_submit_urb(entry, GFP_KERNEL);
816 /* command packet rx procedure */
817 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
818 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
821 entry = usb_alloc_urb(0, GFP_KERNEL);
826 usb_fill_bulk_urb(entry, priv->udev,
827 usb_rcvbulkpipe(priv->udev, 9),
828 skb_tail_pointer(skb),
829 RX_URB_SIZE, rtl8192_rx_isr, skb);
830 info = (struct rtl8192_rx_info *)skb->cb;
833 info->out_pipe = 9; /* denote rx cmd packet queue */
834 skb_queue_tail(&priv->rx_queue, skb);
835 usb_submit_urb(entry, GFP_KERNEL);
841 void rtl8192_set_rxconf(struct net_device *dev)
843 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
846 read_nic_dword(dev, RCR, &rxconf);
847 rxconf = rxconf & ~MAC_FILTER_MASK;
848 rxconf = rxconf | RCR_AMF;
849 rxconf = rxconf | RCR_ADF;
850 rxconf = rxconf | RCR_AB;
851 rxconf = rxconf | RCR_AM;
853 if (dev->flags & IFF_PROMISC)
854 DMESG("NIC in promisc mode");
856 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
857 dev->flags & IFF_PROMISC) {
858 rxconf = rxconf | RCR_AAP;
860 rxconf = rxconf | RCR_APM;
861 rxconf = rxconf | RCR_CBSSID;
865 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
866 rxconf = rxconf | RCR_AICV;
867 rxconf = rxconf | RCR_APWRMGT;
870 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
871 rxconf = rxconf | RCR_ACRC32;
874 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
875 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
876 rxconf = rxconf & ~MAX_RX_DMA_MASK;
877 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
879 rxconf = rxconf | RCR_ONLYERLPKT;
881 write_nic_dword(dev, RCR, rxconf);
884 /* wait to be removed */
885 void rtl8192_rx_enable(struct net_device *dev)
887 rtl8192_rx_initiate(dev);
891 void rtl8192_tx_enable(struct net_device *dev)
897 void rtl8192_rtx_disable(struct net_device *dev)
900 struct r8192_priv *priv = ieee80211_priv(dev);
902 struct rtl8192_rx_info *info;
904 read_nic_byte(dev, CMDR, &cmd);
905 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
906 force_pci_posting(dev);
909 while ((skb = __skb_dequeue(&priv->rx_queue))) {
910 info = (struct rtl8192_rx_info *)skb->cb;
914 usb_kill_urb(info->urb);
918 if (skb_queue_len(&priv->skb_queue))
919 netdev_warn(dev, "skb_queue not empty\n");
921 skb_queue_purge(&priv->skb_queue);
924 /* The prototype of rx_isr has changed since one version of Linux Kernel */
925 static void rtl8192_rx_isr(struct urb *urb)
927 struct sk_buff *skb = (struct sk_buff *)urb->context;
928 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
929 struct net_device *dev = info->dev;
930 struct r8192_priv *priv = ieee80211_priv(dev);
931 int out_pipe = info->out_pipe;
937 if (unlikely(urb->status)) {
939 priv->stats.rxstaterr++;
940 priv->ieee80211->stats.rx_errors++;
944 skb_unlink(skb, &priv->rx_queue);
945 skb_put(skb, urb->actual_length);
947 skb_queue_tail(&priv->skb_queue, skb);
948 tasklet_schedule(&priv->irq_rx_tasklet);
950 skb = dev_alloc_skb(RX_URB_SIZE);
951 if (unlikely(!skb)) {
953 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
954 /* TODO check rx queue length and refill *somewhere* */
958 usb_fill_bulk_urb(urb, priv->udev,
959 usb_rcvbulkpipe(priv->udev, out_pipe),
960 skb_tail_pointer(skb),
961 RX_URB_SIZE, rtl8192_rx_isr, skb);
963 info = (struct rtl8192_rx_info *)skb->cb;
966 info->out_pipe = out_pipe;
968 urb->transfer_buffer = skb_tail_pointer(skb);
970 skb_queue_tail(&priv->rx_queue, skb);
971 err = usb_submit_urb(urb, GFP_ATOMIC);
972 if (err && err != EPERM)
974 "can not submit rxurb, err is %x, URB status is %x\n",
978 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
979 struct ieee80211_rx_stats *pstats)
983 status = cmpk_message_handle_rx(dev, pstats);
985 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
991 static void rtl8192_data_hard_stop(struct net_device *dev)
997 static void rtl8192_data_hard_resume(struct net_device *dev)
1002 /* this function TX data frames when the ieee80211 stack requires this.
1003 * It checks also if we need to stop the ieee tx queue, eventually do it
1005 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1008 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1010 unsigned long flags;
1011 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1012 u8 queue_index = tcb_desc->queue_index;
1014 /* shall not be referred by command packet */
1015 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
1017 spin_lock_irqsave(&priv->tx_lock, flags);
1019 *(struct net_device **)(skb->cb) = dev;
1020 tcb_desc->bTxEnableFwCalcDur = 1;
1021 skb_push(skb, priv->ieee80211->tx_headroom);
1022 ret = rtl8192_tx(dev, skb);
1024 spin_unlock_irqrestore(&priv->tx_lock, flags);
1027 /* This is a rough attempt to TX a frame
1028 * This is called by the ieee 80211 stack to TX management frames.
1029 * If the ring is full packet are dropped (for data frame the queue
1030 * is stopped before this can happen).
1032 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1034 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1036 unsigned long flags;
1037 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1038 u8 queue_index = tcb_desc->queue_index;
1041 spin_lock_irqsave(&priv->tx_lock, flags);
1043 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1044 if (queue_index == TXCMD_QUEUE) {
1045 skb_push(skb, USB_HWDESC_HEADER_LEN);
1046 rtl819xU_tx_cmd(dev, skb);
1049 skb_push(skb, priv->ieee80211->tx_headroom);
1050 ret = rtl8192_tx(dev, skb);
1053 spin_unlock_irqrestore(&priv->tx_lock, flags);
1058 static void rtl8192_tx_isr(struct urb *tx_urb)
1060 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
1061 struct net_device *dev;
1062 struct r8192_priv *priv = NULL;
1063 struct cb_desc *tcb_desc;
1069 dev = *(struct net_device **)(skb->cb);
1070 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1071 queue_index = tcb_desc->queue_index;
1073 priv = ieee80211_priv(dev);
1075 if (tcb_desc->queue_index != TXCMD_QUEUE) {
1076 if (tx_urb->status == 0) {
1077 netif_trans_update(dev);
1078 priv->stats.txoktotal++;
1079 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
1080 priv->stats.txbytesunicast +=
1081 (skb->len - priv->ieee80211->tx_headroom);
1083 priv->ieee80211->stats.tx_errors++;
1088 /* free skb and tx_urb */
1089 dev_kfree_skb_any(skb);
1090 usb_free_urb(tx_urb);
1091 atomic_dec(&priv->tx_pending[queue_index]);
1095 * We had transfer our beacon frame to host controller at this moment.
1099 * Handling the wait queue of command packets.
1100 * For Tx command packets, we must not do TCB fragment because it is
1101 * not handled right now. We must cut the packets to match the size of
1102 * TX_CMD_PKT before we send it.
1105 /* Handle MPDU in wait queue. */
1106 if (queue_index != BEACON_QUEUE) {
1107 /* Don't send data frame during scanning.*/
1108 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1109 (!(priv->ieee80211->queue_stop))) {
1110 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1112 priv->ieee80211->softmac_hard_start_xmit(skb,
1115 return; /* avoid further processing AMSDU */
1120 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1122 struct r8192_priv *priv = ieee80211_priv(dev);
1123 struct ieee80211_network *net;
1124 u8 i = 0, basic_rate = 0;
1126 net = &priv->ieee80211->current_network;
1128 for (i = 0; i < net->rates_len; i++) {
1129 basic_rate = net->rates[i] & 0x7f;
1130 switch (basic_rate) {
1132 *rate_config |= RRSR_1M;
1135 *rate_config |= RRSR_2M;
1138 *rate_config |= RRSR_5_5M;
1141 *rate_config |= RRSR_11M;
1144 *rate_config |= RRSR_6M;
1147 *rate_config |= RRSR_9M;
1150 *rate_config |= RRSR_12M;
1153 *rate_config |= RRSR_18M;
1156 *rate_config |= RRSR_24M;
1159 *rate_config |= RRSR_36M;
1162 *rate_config |= RRSR_48M;
1165 *rate_config |= RRSR_54M;
1169 for (i = 0; i < net->rates_ex_len; i++) {
1170 basic_rate = net->rates_ex[i] & 0x7f;
1171 switch (basic_rate) {
1173 *rate_config |= RRSR_1M;
1176 *rate_config |= RRSR_2M;
1179 *rate_config |= RRSR_5_5M;
1182 *rate_config |= RRSR_11M;
1185 *rate_config |= RRSR_6M;
1188 *rate_config |= RRSR_9M;
1191 *rate_config |= RRSR_12M;
1194 *rate_config |= RRSR_18M;
1197 *rate_config |= RRSR_24M;
1200 *rate_config |= RRSR_36M;
1203 *rate_config |= RRSR_48M;
1206 *rate_config |= RRSR_54M;
1213 #define SHORT_SLOT_TIME 9
1214 #define NON_SHORT_SLOT_TIME 20
1216 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1219 struct r8192_priv *priv = ieee80211_priv(dev);
1220 struct ieee80211_network *net = &priv->ieee80211->current_network;
1222 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1223 tmp = priv->basic_rate;
1224 if (priv->short_preamble)
1225 tmp |= BRSR_AckShortPmb;
1226 write_nic_dword(dev, RRSR, tmp);
1228 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1231 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1232 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1233 /* short slot time */
1234 slot_time = SHORT_SLOT_TIME;
1235 else /* long slot time */
1236 slot_time = NON_SHORT_SLOT_TIME;
1237 priv->slot_time = slot_time;
1238 write_nic_byte(dev, SLOT_TIME, slot_time);
1242 static void rtl8192_net_update(struct net_device *dev)
1244 struct r8192_priv *priv = ieee80211_priv(dev);
1245 struct ieee80211_network *net;
1246 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1247 u16 rate_config = 0;
1249 net = &priv->ieee80211->current_network;
1251 rtl8192_config_rate(dev, &rate_config);
1252 priv->basic_rate = rate_config & 0x15f;
1254 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1255 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1257 rtl8192_update_msr(dev);
1258 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1259 write_nic_word(dev, ATIMWND, 2);
1260 write_nic_word(dev, BCN_DMATIME, 1023);
1261 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1262 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1263 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1264 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1265 /* TODO: BcnIFS may required to be changed on ASIC */
1266 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1268 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1272 /* temporary hw beacon is not used any more.
1273 * open it when necessary
1275 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1280 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1282 struct r8192_priv *priv = ieee80211_priv(dev);
1285 unsigned int idx_pipe;
1286 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
1287 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1288 u8 queue_index = tcb_desc->queue_index;
1290 atomic_inc(&priv->tx_pending[queue_index]);
1291 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1297 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1298 /* Tx descriptor ought to be set according to the skb->cb */
1299 pdesc->FirstSeg = 1;
1301 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1302 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1304 pdesc->LINIP = tcb_desc->bLastIniPkt;
1306 /*---------------------------------------------------------------------
1307 * Fill up USB_OUT_CONTEXT.
1308 *---------------------------------------------------------------------
1311 usb_fill_bulk_urb(tx_urb, priv->udev,
1312 usb_sndbulkpipe(priv->udev, idx_pipe),
1313 skb->data, skb->len, rtl8192_tx_isr, skb);
1315 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1320 DMESGE("Error TX CMD URB, error %d", status);
1325 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1326 * in TxFwInfo data structure
1327 * 2006.10.30 by Emily
1329 * \param QUEUEID Software Queue
1331 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1333 u8 QueueSelect = 0x0; /* default set to */
1337 QueueSelect = QSLT_BE;
1341 QueueSelect = QSLT_BK;
1345 QueueSelect = QSLT_VO;
1349 QueueSelect = QSLT_VI;
1352 QueueSelect = QSLT_MGNT;
1356 QueueSelect = QSLT_BEACON;
1359 /* TODO: mark other queue selection until we verify it is OK */
1360 /* TODO: Remove Assertions */
1362 QueueSelect = QSLT_CMD;
1365 QueueSelect = QSLT_HIGH;
1370 "TransmitTCB(): Impossible Queue Selection: %d\n",
1377 static u8 MRateToHwRate8190Pci(u8 rate)
1379 u8 ret = DESC90_RATE1M;
1383 ret = DESC90_RATE1M;
1386 ret = DESC90_RATE2M;
1389 ret = DESC90_RATE5_5M;
1392 ret = DESC90_RATE11M;
1395 ret = DESC90_RATE6M;
1398 ret = DESC90_RATE9M;
1401 ret = DESC90_RATE12M;
1404 ret = DESC90_RATE18M;
1407 ret = DESC90_RATE24M;
1410 ret = DESC90_RATE36M;
1413 ret = DESC90_RATE48M;
1416 ret = DESC90_RATE54M;
1419 /* HT rate since here */
1421 ret = DESC90_RATEMCS0;
1424 ret = DESC90_RATEMCS1;
1427 ret = DESC90_RATEMCS2;
1430 ret = DESC90_RATEMCS3;
1433 ret = DESC90_RATEMCS4;
1436 ret = DESC90_RATEMCS5;
1439 ret = DESC90_RATEMCS6;
1442 ret = DESC90_RATEMCS7;
1445 ret = DESC90_RATEMCS8;
1448 ret = DESC90_RATEMCS9;
1451 ret = DESC90_RATEMCS10;
1454 ret = DESC90_RATEMCS11;
1457 ret = DESC90_RATEMCS12;
1460 ret = DESC90_RATEMCS13;
1463 ret = DESC90_RATEMCS14;
1466 ret = DESC90_RATEMCS15;
1469 ret = DESC90_RATEMCS32;
1479 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1483 tmp_Short = (TxHT == 1) ?
1484 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1485 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1487 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1493 static void tx_zero_isr(struct urb *tx_urb)
1498 * The tx procedure is just as following,
1499 * skb->cb will contain all the following information,
1500 * priority, morefrag, rate, &dev.
1502 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1504 struct r8192_priv *priv = ieee80211_priv(dev);
1505 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1506 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
1507 tx_fwinfo_819x_usb *tx_fwinfo =
1508 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1509 struct usb_device *udev = priv->udev;
1512 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1513 unsigned int idx_pipe;
1515 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1516 /* we are locked here so the two atomic_read and inc are executed
1517 * without interleaves
1518 * !!! For debug purpose
1520 if (pend > MAX_TX_URB) {
1521 netdev_dbg(dev, "To discard skb packet!\n");
1522 dev_kfree_skb_any(skb);
1526 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1528 dev_kfree_skb_any(skb);
1532 /* Fill Tx firmware info */
1533 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
1535 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1536 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1537 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1538 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1540 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1541 tx_fwinfo->AllowAggregation = 1;
1543 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1544 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1546 tx_fwinfo->AllowAggregation = 0;
1548 tx_fwinfo->RxMF = 0;
1549 tx_fwinfo->RxAMD = 0;
1552 /* Protection mode related */
1553 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1554 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1555 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1556 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1557 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1558 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1559 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1560 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1561 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1563 /* Set Bandwidth and sub-channel settings. */
1564 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1565 if (tcb_desc->bPacketBW) {
1566 tx_fwinfo->TxBandwidth = 1;
1567 /* use duplicated mode */
1568 tx_fwinfo->TxSubCarrier = 0;
1570 tx_fwinfo->TxBandwidth = 0;
1571 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1574 tx_fwinfo->TxBandwidth = 0;
1575 tx_fwinfo->TxSubCarrier = 0;
1578 /* Fill Tx descriptor */
1579 memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
1582 tx_desc->CmdInit = 1;
1583 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
1584 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1587 tx_desc->SecCAMID = 0;
1588 tx_desc->RATid = tcb_desc->RATRIndex;
1590 tx_desc->SecType = 0x0;
1591 if (tcb_desc->bHwSec) {
1592 switch (priv->ieee80211->pairwise_key_type) {
1593 case KEY_TYPE_WEP40:
1594 case KEY_TYPE_WEP104:
1595 tx_desc->SecType = 0x1;
1599 tx_desc->SecType = 0x2;
1603 tx_desc->SecType = 0x3;
1607 tx_desc->SecType = 0x0;
1613 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1614 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
1616 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1617 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1619 /* Fill fields that are required to be initialized in
1620 * all of the descriptors
1623 tx_desc->FirstSeg = 1;
1624 tx_desc->LastSeg = 1;
1628 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1631 /* To submit bulk urb */
1632 usb_fill_bulk_urb(tx_urb, udev,
1633 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1634 skb->len, rtl8192_tx_isr, skb);
1636 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1638 /* We need to send 0 byte packet whenever
1639 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1640 * been transmitted. Otherwise, it will be halt to wait for
1643 bool bSend0Byte = false;
1646 if (udev->speed == USB_SPEED_HIGH) {
1647 if (skb->len > 0 && skb->len % 512 == 0)
1650 if (skb->len > 0 && skb->len % 64 == 0)
1654 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1657 usb_fill_bulk_urb(tx_urb_zero, udev,
1658 usb_sndbulkpipe(udev, idx_pipe),
1659 &zero, 0, tx_zero_isr, dev);
1660 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1663 "Error TX URB for zero byte %d, error %d",
1664 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1669 netif_trans_update(dev);
1670 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1674 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1675 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1680 static short rtl8192_usb_initendpoints(struct net_device *dev)
1682 struct r8192_priv *priv = ieee80211_priv(dev);
1684 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
1689 #ifndef JACKSON_NEW_RX
1690 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1691 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1693 priv->rx_urb[i]->transfer_buffer =
1694 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1696 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1700 #ifdef THOMAS_BEACON
1703 void *oldaddr, *newaddr;
1705 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1706 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1707 oldaddr = priv->oldaddr;
1708 align = ((long)oldaddr) & 3;
1710 newaddr = oldaddr + 4 - align;
1711 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1714 priv->rx_urb[16]->transfer_buffer_length = 16;
1716 priv->rx_urb[16]->transfer_buffer = newaddr;
1720 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1721 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1723 if (!priv->pp_rxskb) {
1724 kfree(priv->rx_urb);
1726 priv->pp_rxskb = NULL;
1727 priv->rx_urb = NULL;
1729 DMESGE("Endpoint Alloc Failure");
1733 netdev_dbg(dev, "End of initendpoints\n");
1737 #ifdef THOMAS_BEACON
1738 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1741 struct r8192_priv *priv = ieee80211_priv(dev);
1744 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1745 usb_kill_urb(priv->rx_urb[i]);
1746 usb_free_urb(priv->rx_urb[i]);
1748 kfree(priv->rx_urb);
1749 priv->rx_urb = NULL;
1751 kfree(priv->oldaddr);
1752 priv->oldaddr = NULL;
1754 kfree(priv->pp_rxskb);
1755 priv->pp_rxskb = NULL;
1758 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1761 struct r8192_priv *priv = ieee80211_priv(dev);
1763 #ifndef JACKSON_NEW_RX
1766 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1767 usb_kill_urb(priv->rx_urb[i]);
1768 kfree(priv->rx_urb[i]->transfer_buffer);
1769 usb_free_urb(priv->rx_urb[i]);
1771 kfree(priv->rx_urb);
1772 priv->rx_urb = NULL;
1775 kfree(priv->rx_urb);
1776 priv->rx_urb = NULL;
1777 kfree(priv->oldaddr);
1778 priv->oldaddr = NULL;
1780 kfree(priv->pp_rxskb);
1787 static void rtl8192_update_ratr_table(struct net_device *dev);
1788 static void rtl8192_link_change(struct net_device *dev)
1790 struct r8192_priv *priv = ieee80211_priv(dev);
1791 struct ieee80211_device *ieee = priv->ieee80211;
1793 if (ieee->state == IEEE80211_LINKED) {
1794 rtl8192_net_update(dev);
1795 rtl8192_update_ratr_table(dev);
1796 /* Add this as in pure N mode, wep encryption will use software
1797 * way, but there is no chance to set this as wep will not set
1798 * group key in wext.
1800 if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
1801 KEY_TYPE_WEP104 == ieee->pairwise_key_type)
1802 EnableHWSecurityConfig8192(dev);
1804 /*update timing params*/
1805 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1808 read_nic_dword(dev, RCR, ®);
1809 if (priv->ieee80211->state == IEEE80211_LINKED)
1810 priv->ReceiveConfig = reg |= RCR_CBSSID;
1812 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1813 write_nic_dword(dev, RCR, reg);
1817 static struct ieee80211_qos_parameters def_qos_parameters = {
1818 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1819 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1820 {2, 2, 2, 2},/* aifs */
1821 {0, 0, 0, 0},/* flags */
1822 {0, 0, 0, 0} /* tx_op_limit */
1826 static void rtl8192_update_beacon(struct work_struct *work)
1828 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1829 update_beacon_wq.work);
1830 struct net_device *dev = priv->ieee80211->dev;
1831 struct ieee80211_device *ieee = priv->ieee80211;
1832 struct ieee80211_network *net = &ieee->current_network;
1834 if (ieee->pHTInfo->bCurrentHTSupport)
1835 HTUpdateSelfAndPeerSetting(ieee, net);
1836 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1837 net->bssht.bdRT2RTLongSlotTime;
1838 rtl8192_update_cap(dev, net->capability);
1842 * background support to run QoS activate functionality
1844 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1845 EDCAPARA_VI, EDCAPARA_VO};
1846 static void rtl8192_qos_activate(struct work_struct *work)
1848 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1850 struct net_device *dev = priv->ieee80211->dev;
1851 struct ieee80211_qos_parameters *qos_parameters =
1852 &priv->ieee80211->current_network.qos_data.parameters;
1853 u8 mode = priv->ieee80211->current_network.mode;
1861 mutex_lock(&priv->mutex);
1862 if (priv->ieee80211->state != IEEE80211_LINKED)
1865 "qos active process with associate response received\n");
1866 /* It better set slot time at first
1868 * For we just support b/g mode at present, let the slot time at
1871 * update the ac parameter to related registers
1873 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1874 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1875 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1876 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1877 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1878 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1879 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1880 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1881 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1882 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1883 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1884 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1888 mutex_unlock(&priv->mutex);
1891 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1893 struct ieee80211_network *network)
1896 u32 size = sizeof(struct ieee80211_qos_parameters);
1898 if (priv->ieee80211->state != IEEE80211_LINKED)
1901 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1904 if (network->flags & NETWORK_HAS_QOS_MASK) {
1905 if (active_network &&
1906 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1907 network->qos_data.active = network->qos_data.supported;
1909 if ((network->qos_data.active == 1) && (active_network == 1) &&
1910 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1911 (network->qos_data.old_param_count !=
1912 network->qos_data.param_count)) {
1913 network->qos_data.old_param_count =
1914 network->qos_data.param_count;
1915 schedule_work(&priv->qos_activate);
1917 "QoS parameters change call qos_activate\n");
1920 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1921 &def_qos_parameters, size);
1923 if ((network->qos_data.active == 1) && (active_network == 1)) {
1924 schedule_work(&priv->qos_activate);
1926 "QoS was disabled call qos_activate\n");
1928 network->qos_data.active = 0;
1929 network->qos_data.supported = 0;
1935 /* handle and manage frame from beacon and probe response */
1936 static int rtl8192_handle_beacon(struct net_device *dev,
1937 struct ieee80211_beacon *beacon,
1938 struct ieee80211_network *network)
1940 struct r8192_priv *priv = ieee80211_priv(dev);
1942 rtl8192_qos_handle_probe_response(priv, 1, network);
1943 schedule_delayed_work(&priv->update_beacon_wq, 0);
1948 * handling the beaconing responses. if we get different QoS setting
1949 * off the network from the associated setting, adjust the QoS
1952 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1953 struct ieee80211_network *network)
1955 unsigned long flags;
1956 u32 size = sizeof(struct ieee80211_qos_parameters);
1957 int set_qos_param = 0;
1959 if (!priv || !network)
1962 if (priv->ieee80211->state != IEEE80211_LINKED)
1965 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1968 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1969 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1970 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1971 &network->qos_data.parameters,
1972 sizeof(struct ieee80211_qos_parameters));
1973 priv->ieee80211->current_network.qos_data.active = 1;
1975 /* update qos parameter for current network */
1976 priv->ieee80211->current_network.qos_data.old_param_count =
1977 priv->ieee80211->current_network.qos_data.param_count;
1978 priv->ieee80211->current_network.qos_data.param_count =
1979 network->qos_data.param_count;
1981 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1982 &def_qos_parameters, size);
1983 priv->ieee80211->current_network.qos_data.active = 0;
1984 priv->ieee80211->current_network.qos_data.supported = 0;
1988 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1990 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1992 priv->ieee80211->current_network.qos_data.active);
1993 if (set_qos_param == 1)
1994 schedule_work(&priv->qos_activate);
2001 static int rtl8192_handle_assoc_response(
2002 struct net_device *dev,
2003 struct ieee80211_assoc_response_frame *resp,
2004 struct ieee80211_network *network)
2006 struct r8192_priv *priv = ieee80211_priv(dev);
2008 rtl8192_qos_association_resp(priv, network);
2013 static void rtl8192_update_ratr_table(struct net_device *dev)
2015 struct r8192_priv *priv = ieee80211_priv(dev);
2016 struct ieee80211_device *ieee = priv->ieee80211;
2017 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2021 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2022 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2023 switch (ieee->mode) {
2025 ratr_value &= 0x00000FF0;
2028 ratr_value &= 0x0000000F;
2031 ratr_value &= 0x00000FF7;
2035 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2036 ratr_value &= 0x0007F007;
2038 if (priv->rf_type == RF_1T2R)
2039 ratr_value &= 0x000FF007;
2041 ratr_value &= 0x0F81F007;
2047 ratr_value &= 0x0FFFFFFF;
2048 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2049 ratr_value |= 0x80000000;
2050 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2051 ieee->pHTInfo->bCurShortGI20MHz)
2052 ratr_value |= 0x80000000;
2053 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2054 write_nic_byte(dev, UFWP, 1);
2057 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2058 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
2059 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2061 struct r8192_priv *priv = ieee80211_priv(dev);
2062 struct ieee80211_device *ieee = priv->ieee80211;
2063 struct ieee80211_network *network = &ieee->current_network;
2064 int wpa_ie_len = ieee->wpa_ie_len;
2065 struct ieee80211_crypt_data *crypt;
2068 crypt = ieee->crypt[ieee->tx_keyidx];
2069 /* we use connecting AP's capability instead of only security config
2070 * on our driver to distinguish whether it should use N mode or G mode
2072 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2073 (ieee->host_encrypt && crypt && crypt->ops &&
2074 (0 == strcmp(crypt->ops->name, "WEP")));
2077 if (encrypt && (wpa_ie_len == 0)) {
2078 /* wep encryption, no N mode setting */
2080 } else if ((wpa_ie_len != 0)) {
2081 /* parse pairwise key type */
2082 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))))
2093 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2095 struct r8192_priv *priv = ieee80211_priv(dev);
2097 return priv->ieee80211->bHalfWirelessN24GMode;
2100 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2102 struct ieee80211_device *ieee = priv->ieee80211;
2103 /* We do not consider set support rate for ABG mode, only
2104 * HT MCS rate is set here.
2106 if (ieee->mode == WIRELESS_MODE_N_24G ||
2107 ieee->mode == WIRELESS_MODE_N_5G)
2108 memcpy(ieee->Regdot11HTOperationalRateSet,
2109 ieee->RegHTSuppRateSet, 16);
2111 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2114 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2116 struct r8192_priv *priv = ieee80211_priv(dev);
2119 switch (priv->rf_chip) {
2123 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2126 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2129 ret = WIRELESS_MODE_B;
2135 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2137 struct r8192_priv *priv = ieee80211_priv(dev);
2138 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2140 if (wireless_mode == WIRELESS_MODE_AUTO ||
2141 (wireless_mode & bSupportMode) == 0) {
2142 if (bSupportMode & WIRELESS_MODE_N_24G) {
2143 wireless_mode = WIRELESS_MODE_N_24G;
2144 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2145 wireless_mode = WIRELESS_MODE_N_5G;
2146 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2147 wireless_mode = WIRELESS_MODE_A;
2148 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2149 wireless_mode = WIRELESS_MODE_G;
2150 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2151 wireless_mode = WIRELESS_MODE_B;
2154 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2155 __func__, bSupportMode);
2156 wireless_mode = WIRELESS_MODE_B;
2160 /* TODO: this function doesn't work well at this time,
2161 * we should wait for FPGA
2163 ActUpdateChannelAccessSetting(
2164 pAdapter, pHalData->CurrentWirelessMode,
2165 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2167 priv->ieee80211->mode = wireless_mode;
2169 if (wireless_mode == WIRELESS_MODE_N_24G ||
2170 wireless_mode == WIRELESS_MODE_N_5G)
2171 priv->ieee80211->pHTInfo->bEnableHT = 1;
2173 priv->ieee80211->pHTInfo->bEnableHT = 0;
2174 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2175 rtl8192_refresh_supportrate(priv);
2178 /* init priv variables here. only non_zero value should be initialized here. */
2179 static void rtl8192_init_priv_variable(struct net_device *dev)
2181 struct r8192_priv *priv = ieee80211_priv(dev);
2184 priv->card_8192 = NIC_8192U;
2185 priv->chan = 1; /* set to channel 1 */
2186 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2187 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2188 priv->ieee80211->ieee_up = 0;
2189 priv->retry_rts = DEFAULT_RETRY_RTS;
2190 priv->retry_data = DEFAULT_RETRY_DATA;
2191 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2192 priv->ieee80211->rate = 110; /* 11 mbps */
2193 priv->ieee80211->short_slot = 1;
2194 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2196 /* for silent reset */
2197 priv->IrpPendingCount = 1;
2198 priv->ResetProgress = RESET_TYPE_NORESET;
2199 priv->bForcedSilentReset = false;
2200 priv->bDisableNormalResetCheck = false;
2201 priv->force_reset = false;
2203 /* we don't use FW read/write RF until stable firmware is available. */
2204 priv->ieee80211->FwRWRF = 0;
2205 priv->ieee80211->current_network.beacon_interval =
2206 DEFAULT_BEACONINTERVAL;
2207 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2208 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2209 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2210 IEEE_SOFTMAC_BEACONS;
2212 priv->ieee80211->active_scan = 1;
2213 priv->ieee80211->modulation =
2214 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2215 priv->ieee80211->host_encrypt = 1;
2216 priv->ieee80211->host_decrypt = 1;
2217 priv->ieee80211->start_send_beacons = NULL;
2218 priv->ieee80211->stop_send_beacons = NULL;
2219 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2220 priv->ieee80211->set_chan = rtl8192_set_chan;
2221 priv->ieee80211->link_change = rtl8192_link_change;
2222 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2223 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2224 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2225 priv->ieee80211->init_wmmparam_flag = 0;
2226 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2227 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2228 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2229 priv->ieee80211->qos_support = 1;
2231 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2232 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2233 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2235 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2236 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2237 GetHalfNmodeSupportByAPs819xUsb;
2238 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2240 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2241 priv->card_type = USB;
2243 if (Adapter->bInHctTest) {
2244 pHalData->ShortRetryLimit = 7;
2245 pHalData->LongRetryLimit = 7;
2248 priv->ShortRetryLimit = 0x30;
2249 priv->LongRetryLimit = 0x30;
2250 priv->EarlyRxThreshold = 7;
2251 priv->enable_gpio0 = 0;
2252 priv->TransmitConfig =
2253 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2254 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2255 /* Short retry limit */
2256 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2257 /* Long retry limit */
2258 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2259 /* FALSE: HW provides PLCP length and LENGEXT
2260 * TRUE: SW provides them
2262 (false ? TCR_SAT : 0);
2264 if (Adapter->bInHctTest)
2265 pHalData->ReceiveConfig =
2266 pHalData->CSMethod |
2267 /* accept management/data */
2269 /* accept control frame for SW
2273 /* accept BC/MC/UC */
2274 RCR_AB | RCR_AM | RCR_APM |
2275 /* accept ICV/CRC error
2278 RCR_AICV | RCR_ACRC32 |
2279 /* Max DMA Burst Size per Tx
2280 * DMA Burst, 7: unlimited.
2282 ((u32)7 << RCR_MXDMA_OFFSET) |
2283 /* Rx FIFO Threshold,
2284 * 7: No Rx threshold.
2286 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2287 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2291 priv->ReceiveConfig =
2292 /* accept management/data */
2294 /* accept control frame for SW AP needs PS-poll */
2296 /* accept BC/MC/UC */
2297 RCR_AB | RCR_AM | RCR_APM |
2298 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2299 ((u32)7 << RCR_MXDMA_OFFSET) |
2300 /* Rx FIFO Threshold, 7: No Rx threshold. */
2301 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2302 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2304 priv->AcmControl = 0;
2305 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2307 /* rx related queue */
2308 skb_queue_head_init(&priv->rx_queue);
2309 skb_queue_head_init(&priv->skb_queue);
2311 /* Tx related queue */
2312 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2313 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2314 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2315 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2316 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2317 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2318 priv->rf_set_chan = rtl8192_phy_SwChnl;
2321 /* init lock here */
2322 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2324 spin_lock_init(&priv->tx_lock);
2325 spin_lock_init(&priv->irq_lock);
2326 mutex_init(&priv->wx_mutex);
2327 mutex_init(&priv->mutex);
2330 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2332 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2333 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2334 #define DRV_NAME "wlan0"
2335 static void rtl8192_init_priv_task(struct net_device *dev)
2337 struct r8192_priv *priv = ieee80211_priv(dev);
2340 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2342 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2343 rtl819x_watchdog_wqcallback);
2344 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2345 dm_txpower_trackingcallback);
2346 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2347 dm_rf_pathcheck_workitemcallback);
2348 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2349 rtl8192_update_beacon);
2350 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2351 InitialGainOperateWorkItemCallBack);
2352 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2354 tasklet_init(&priv->irq_rx_tasklet,
2355 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2356 (unsigned long)priv);
2359 static void rtl8192_get_eeprom_size(struct net_device *dev)
2362 struct r8192_priv *priv = ieee80211_priv(dev);
2364 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2365 read_nic_word_E(dev, EPROM_CMD, &curCR);
2366 RT_TRACE(COMP_EPROM,
2367 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2368 /* whether need I consider BIT(5?) */
2370 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2371 RT_TRACE(COMP_EPROM,
2372 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2375 /* used to swap endian. as ntohl & htonl are not necessary
2376 * to swap endian, so use this instead.
2378 static inline u16 endian_swap(u16 *data)
2381 *data = (tmp >> 8) | (tmp << 8);
2385 static int rtl8192_read_eeprom_info(struct net_device *dev)
2388 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2389 u8 bLoad_From_EEPOM = false;
2390 struct r8192_priv *priv = ieee80211_priv(dev);
2395 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2396 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2399 wEPROM_ID = (u16)ret;
2400 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2402 if (wEPROM_ID != RTL8190_EEPROM_ID)
2404 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2405 wEPROM_ID, RTL8190_EEPROM_ID);
2407 bLoad_From_EEPOM = true;
2409 if (bLoad_From_EEPOM) {
2410 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2411 ret = eprom_read(dev, EEPROM_VID >> 1);
2414 tmpValue = (u16)ret;
2415 priv->eeprom_vid = endian_swap(&tmpValue);
2416 ret = eprom_read(dev, EEPROM_PID >> 1);
2419 priv->eeprom_pid = (u16)ret;
2420 ret = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2423 tmpValue = (u16)ret;
2424 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2425 priv->btxpowerdata_readfromEEPORM = true;
2426 ret = eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2429 priv->eeprom_CustomerID = (u16)ret;
2431 priv->eeprom_vid = 0;
2432 priv->eeprom_pid = 0;
2433 priv->card_8192_version = VERSION_819xU_B;
2434 priv->eeprom_ChannelPlan = 0;
2435 priv->eeprom_CustomerID = 0;
2437 RT_TRACE(COMP_EPROM,
2438 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2439 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2440 priv->eeprom_ChannelPlan);
2441 /* set channelplan from eeprom */
2442 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2443 if (bLoad_From_EEPOM) {
2446 for (i = 0; i < 6; i += 2) {
2447 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2450 *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2453 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2454 /* should I set IDR0 here? */
2456 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2457 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2458 priv->rf_chip = RF_8256;
2460 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2461 /* read Tx power gain offset of legacy OFDM to HT rate */
2462 if (bLoad_From_EEPOM) {
2463 ret = eprom_read(dev, (EEPROM_TxPowerDiff >> 1));
2466 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2468 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2469 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2470 /* read ThermalMeter from EEPROM */
2471 if (bLoad_From_EEPOM) {
2472 ret = eprom_read(dev, (EEPROM_ThermalMeter >> 1));
2475 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2477 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2478 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2479 /* for tx power track */
2480 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2481 /* read antenna tx power offset of B/C/D to A from EEPROM */
2482 if (bLoad_From_EEPOM) {
2483 ret = eprom_read(dev, (EEPROM_PwDiff >> 1));
2486 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2488 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2489 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2490 /* Read CrystalCap from EEPROM */
2491 if (bLoad_From_EEPOM) {
2492 ret = eprom_read(dev, (EEPROM_CrystalCap >> 1));
2495 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2497 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2498 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2499 /* get per-channel Tx power level */
2500 if (bLoad_From_EEPOM) {
2501 ret = eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1));
2504 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2506 priv->EEPROM_Def_Ver = 1;
2507 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2508 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2511 if (bLoad_From_EEPOM) {
2512 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1));
2515 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8;
2517 priv->EEPROMTxPowerLevelCCK = 0x10;
2518 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2519 for (i = 0; i < 3; i++) {
2520 if (bLoad_From_EEPOM) {
2521 ret = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2524 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2525 tmpValue = (u16)ret & 0x00ff;
2527 tmpValue = ((u16)ret & 0xff00) >> 8;
2531 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2532 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2534 } else if (priv->EEPROM_Def_Ver == 1) {
2535 if (bLoad_From_EEPOM) {
2536 ret = eprom_read(dev, EEPROM_TxPwIndex_CCK_V1 >> 1);
2539 tmpValue = ((u16)ret & 0xff00) >> 8;
2543 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2545 if (bLoad_From_EEPOM) {
2546 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2549 tmpValue = (u16)ret;
2552 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2553 if (bLoad_From_EEPOM)
2554 tmpValue = eprom_read(dev,
2555 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2558 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2559 if (bLoad_From_EEPOM)
2560 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2563 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2564 } /* endif EEPROM_Def_Ver == 1 */
2566 /* update HAL variables */
2567 for (i = 0; i < 14; i++) {
2569 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2570 else if (i >= 4 && i <= 9)
2571 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2573 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2576 for (i = 0; i < 14; i++) {
2577 if (priv->EEPROM_Def_Ver == 0) {
2579 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2580 else if (i >= 4 && i <= 9)
2581 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2583 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2584 } else if (priv->EEPROM_Def_Ver == 1) {
2586 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2587 else if (i >= 4 && i <= 9)
2588 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2590 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2593 priv->TxPowerDiff = priv->EEPROMPwDiff;
2594 /* Antenna B gain offset to antenna A, bit0~3 */
2595 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2596 /* Antenna C gain offset to antenna A, bit4~7 */
2597 priv->AntennaTxPwDiff[1] =
2598 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2599 /* CrystalCap, bit12~15 */
2600 priv->CrystalCap = priv->EEPROMCrystalCap;
2601 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2602 * 92U does not enable TX power tracking.
2604 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2605 } /* end if VersionID == VERSION_819xU_A */
2608 switch (priv->eeprom_CustomerID) {
2609 case EEPROM_CID_RUNTOP:
2610 priv->CustomerID = RT_CID_819x_RUNTOP;
2613 case EEPROM_CID_DLINK:
2614 priv->CustomerID = RT_CID_DLINK;
2618 priv->CustomerID = RT_CID_DEFAULT;
2622 switch (priv->CustomerID) {
2623 case RT_CID_819x_RUNTOP:
2624 priv->LedStrategy = SW_LED_MODE2;
2628 priv->LedStrategy = SW_LED_MODE4;
2632 priv->LedStrategy = SW_LED_MODE0;
2637 if (priv->rf_type == RF_1T2R)
2638 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2640 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2642 /* We can only know RF type in the function. So we have to init
2643 * DIG RATR table again.
2645 init_rate_adaptive(dev);
2647 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2652 static short rtl8192_get_channel_map(struct net_device *dev)
2654 struct r8192_priv *priv = ieee80211_priv(dev);
2656 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2658 "rtl8180_init: Error channel plan! Set to default.\n");
2659 priv->ChannelPlan = 0;
2661 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2663 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2667 static short rtl8192_init(struct net_device *dev)
2669 struct r8192_priv *priv = ieee80211_priv(dev);
2672 memset(&(priv->stats), 0, sizeof(struct Stats));
2673 memset(priv->txqueue_to_outpipemap, 0, 9);
2677 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2679 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2683 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2685 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2688 rtl8192_init_priv_variable(dev);
2689 rtl8192_init_priv_lock(priv);
2690 rtl8192_init_priv_task(dev);
2691 rtl8192_get_eeprom_size(dev);
2692 err = rtl8192_read_eeprom_info(dev);
2694 DMESG("Reading EEPROM info failed");
2695 kfree(priv->pFirmware);
2696 priv->pFirmware = NULL;
2697 free_ieee80211(dev);
2700 rtl8192_get_channel_map(dev);
2702 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2703 (unsigned long)dev);
2704 if (rtl8192_usb_initendpoints(dev) != 0) {
2705 DMESG("Endopoints initialization failed");
2712 /******************************************************************************
2713 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2714 * not to do all the hw config as its name says
2715 * input: net_device dev
2718 * notice: This part need to modified according to the rate set we filtered
2719 * ****************************************************************************/
2720 static void rtl8192_hwconfig(struct net_device *dev)
2722 u32 regRATR = 0, regRRSR = 0;
2723 u8 regBwOpMode = 0, regTmp = 0;
2724 struct r8192_priv *priv = ieee80211_priv(dev);
2727 /* Set RRSR, RATR, and BW_OPMODE registers */
2728 switch (priv->ieee80211->mode) {
2729 case WIRELESS_MODE_B:
2730 regBwOpMode = BW_OPMODE_20MHZ;
2731 regRATR = RATE_ALL_CCK;
2732 regRRSR = RATE_ALL_CCK;
2734 case WIRELESS_MODE_A:
2735 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2736 regRATR = RATE_ALL_OFDM_AG;
2737 regRRSR = RATE_ALL_OFDM_AG;
2739 case WIRELESS_MODE_G:
2740 regBwOpMode = BW_OPMODE_20MHZ;
2741 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2742 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2744 case WIRELESS_MODE_AUTO:
2746 if (Adapter->bInHctTest) {
2747 regBwOpMode = BW_OPMODE_20MHZ;
2748 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2749 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2753 regBwOpMode = BW_OPMODE_20MHZ;
2754 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2755 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2756 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2759 case WIRELESS_MODE_N_24G:
2760 /* It support CCK rate by default. CCK rate will be filtered
2761 * out only when associated AP does not support it.
2763 regBwOpMode = BW_OPMODE_20MHZ;
2764 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2765 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2766 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2768 case WIRELESS_MODE_N_5G:
2769 regBwOpMode = BW_OPMODE_5G;
2770 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2772 regRRSR = RATE_ALL_OFDM_AG;
2776 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2777 ratr_value = regRATR;
2778 if (priv->rf_type == RF_1T2R)
2779 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2780 write_nic_dword(dev, RATR0, ratr_value);
2781 write_nic_byte(dev, UFWP, 1);
2782 read_nic_byte(dev, 0x313, ®Tmp);
2783 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2784 write_nic_dword(dev, RRSR, regRRSR);
2786 /* Set Retry Limit here */
2787 write_nic_word(dev, RETRY_LIMIT,
2788 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2789 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2790 /* Set Contention Window here */
2794 /* Set Tx Antenna including Feedback control */
2796 /* Set Auto Rate fallback control */
2800 /* InitializeAdapter and PhyCfg */
2801 static bool rtl8192_adapter_start(struct net_device *dev)
2803 struct r8192_priv *priv = ieee80211_priv(dev);
2805 bool init_status = true;
2806 u8 SECR_value = 0x0;
2809 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2810 priv->Rf_Mode = RF_OP_By_SW_3wire;
2811 /* for ASIC power on sequence */
2812 write_nic_byte_E(dev, 0x5f, 0x80);
2814 write_nic_byte_E(dev, 0x5f, 0xf0);
2815 write_nic_byte_E(dev, 0x5d, 0x00);
2816 write_nic_byte_E(dev, 0x5e, 0x80);
2817 write_nic_byte(dev, 0x17, 0x37);
2819 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2820 /* config CPUReset Register */
2821 /* Firmware Reset or not? */
2822 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2823 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2824 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2825 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2826 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2829 "ERROR in %s(): undefined firmware state(%d)\n",
2830 __func__, priv->pFirmware->firmware_status);
2832 write_nic_dword(dev, CPU_GEN, dwRegRead);
2834 rtl8192_BBConfig(dev);
2836 /* Loopback mode or not */
2837 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2839 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2840 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2841 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2842 CPU_GEN_NO_LOOPBACK_SET;
2843 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2844 dwRegRead |= CPU_CCK_LOOPBACK;
2847 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2848 __func__, priv->LoopbackMode);
2850 write_nic_dword(dev, CPU_GEN, dwRegRead);
2852 /* after reset cpu, we need wait for a seconds to write in register. */
2855 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2856 read_nic_byte_E(dev, 0x5f, &tmp);
2857 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2860 rtl8192_hwconfig(dev);
2863 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2866 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2867 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2870 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2872 /* Initialize Number of Reserved Pages in Firmware Queue */
2873 write_nic_dword(dev, RQPN1,
2874 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2875 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2876 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2877 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2878 write_nic_dword(dev, RQPN2,
2879 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2880 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2881 write_nic_dword(dev, RQPN3,
2882 APPLIED_RESERVED_QUEUE_IN_FW |
2883 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2884 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2886 /* Set AckTimeout */
2887 /* TODO: (it value is only for FPGA version). need to be changed!! */
2888 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2890 if (priv->ResetProgress == RESET_TYPE_NORESET)
2891 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2892 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2893 CamResetAllEntry(dev);
2894 SECR_value |= SCR_TxEncEnable;
2895 SECR_value |= SCR_RxDecEnable;
2896 SECR_value |= SCR_NoSKMC;
2897 write_nic_byte(dev, SECR, SECR_value);
2900 /* Beacon related */
2901 write_nic_word(dev, ATIMWND, 2);
2902 write_nic_word(dev, BCN_INTERVAL, 100);
2904 #define DEFAULT_EDCA 0x005e4332
2908 for (i = 0; i < QOS_QUEUE_NUM; i++)
2909 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2912 rtl8192_phy_configmac(dev);
2914 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2915 rtl8192_phy_getTxPower(dev);
2916 rtl8192_phy_setTxPower(dev, priv->chan);
2919 /* Firmware download */
2920 init_status = init_firmware(dev);
2922 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2926 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2929 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2930 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2931 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2932 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2933 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2934 /* Those actions will be discard in MgntActSet_RF_State
2935 * because of the same state
2937 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2938 PHY_SetRFReg(Adapter,
2939 (RF90_RADIO_PATH_E)eRFPath,
2941 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2942 /* H/W or S/W RF OFF before sleep. */
2943 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2944 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2945 pMgntInfo->RfOffReason));
2946 MgntActSet_RF_State(Adapter,
2948 pMgntInfo->RfOffReason);
2950 pHalData->eRFPowerState = eRfOn;
2951 pMgntInfo->RfOffReason = 0;
2952 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2953 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2956 if (pHalData->eRFPowerState == eRfOff) {
2957 MgntActSet_RF_State(Adapter,
2959 pMgntInfo->RfOffReason);
2960 /* Those actions will be discard in MgntActSet_RF_State
2961 * because of the same state
2963 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2964 PHY_SetRFReg(Adapter,
2965 (RF90_RADIO_PATH_E)eRFPath,
2971 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2972 rtl8192_phy_RFConfig(dev);
2973 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2977 if (priv->ieee80211->FwRWRF)
2978 /* We can force firmware to do RF-R/W */
2979 priv->Rf_Mode = RF_OP_By_FW;
2981 priv->Rf_Mode = RF_OP_By_SW_3wire;
2984 rtl8192_phy_updateInitGain(dev);
2985 /*--set CCK and OFDM Block "ON"--*/
2986 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2987 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2989 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2993 read_nic_byte(dev, 0x301, &tmpvalue);
2994 if (tmpvalue == 0x03) {
2996 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2998 priv->bDcut = false;
2999 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
3001 dm_initialize_txpower_tracking(dev);
3005 u32 tmpRegA = rtl8192_QueryBBReg(dev,
3006 rOFDM0_XATxIQImbalance,
3009 for (i = 0; i < TxBBGainTableLength; i++) {
3010 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
3011 priv->rfa_txpowertrackingindex = (u8)i;
3012 priv->rfa_txpowertrackingindex_real =
3014 priv->rfa_txpowertracking_default =
3015 priv->rfa_txpowertrackingindex;
3020 TempCCk = rtl8192_QueryBBReg(dev,
3024 for (i = 0; i < CCKTxBBGainTableLength; i++) {
3025 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
3026 priv->cck_present_attentuation_20Mdefault = (u8)i;
3030 priv->cck_present_attentuation_40Mdefault = 0;
3031 priv->cck_present_attentuation_difference = 0;
3032 priv->cck_present_attentuation =
3033 priv->cck_present_attentuation_20Mdefault;
3036 write_nic_byte(dev, 0x87, 0x0);
3042 /* this configures registers for beacon tx and enables it via
3043 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
3044 * be used to stop beacon transmission
3046 /***************************************************************************
3047 * -------------------------------NET STUFF---------------------------
3048 ***************************************************************************/
3050 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3052 struct r8192_priv *priv = ieee80211_priv(dev);
3054 return &priv->ieee80211->stats;
3057 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3059 struct r8192_priv *priv = ieee80211_priv(dev);
3061 bool bStuck = false;
3063 read_nic_word(dev, 0x128, &RegTxCounter);
3064 RT_TRACE(COMP_RESET,
3065 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3066 RegTxCounter, priv->TxCounter);
3067 if (priv->TxCounter == RegTxCounter)
3070 priv->TxCounter = RegTxCounter;
3076 * <Assumption: RT_TX_SPINLOCK is acquired.>
3077 * First added: 2006.11.19 by emily
3079 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3081 struct r8192_priv *priv = ieee80211_priv(dev);
3083 bool bCheckFwTxCnt = false;
3085 /* Decide such threshold according to current power save mode */
3087 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3088 if (QueueID == TXCMD_QUEUE)
3090 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3093 bCheckFwTxCnt = true;
3095 if (bCheckFwTxCnt) {
3096 if (HalTxCheckStuck819xUsb(dev)) {
3097 RT_TRACE(COMP_RESET,
3098 "TxCheckStuck(): Fw indicates no Tx condition!\n");
3099 return RESET_TYPE_SILENT;
3102 return RESET_TYPE_NORESET;
3105 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3108 struct r8192_priv *priv = ieee80211_priv(dev);
3109 bool bStuck = false;
3110 static u8 rx_chk_cnt;
3112 read_nic_word(dev, 0x130, &RegRxCounter);
3113 RT_TRACE(COMP_RESET,
3114 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3115 RegRxCounter, priv->RxCounter);
3116 /* If rssi is small, we should check rx for long time because of bad rx.
3117 * or maybe it will continuous silent reset every 2 seconds.
3120 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3121 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3122 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3123 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3124 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3129 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3130 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3131 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3143 if (priv->RxCounter == RegRxCounter)
3146 priv->RxCounter = RegRxCounter;
3151 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3153 struct r8192_priv *priv = ieee80211_priv(dev);
3154 bool bRxCheck = false;
3156 if (priv->IrpPendingCount > 1)
3160 if (HalRxCheckStuck819xUsb(dev)) {
3161 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3162 return RESET_TYPE_SILENT;
3165 return RESET_TYPE_NORESET;
3170 * This function is called by Checkforhang to check whether we should
3171 * ask OS to reset driver
3173 * \param pAdapter The adapter context for this miniport
3175 * Note:NIC with USB interface sholud not call this function because we
3176 * cannot scan descriptor to judge whether there is tx stuck.
3177 * Note: This function may be required to be rewrite for Vista OS.
3178 * <<<Assumption: Tx spinlock has been acquired >>>
3180 * 8185 and 8185b does not implement this function.
3182 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3184 struct r8192_priv *priv = ieee80211_priv(dev);
3185 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3186 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3187 RT_RF_POWER_STATE rfState;
3189 rfState = priv->ieee80211->eRFPowerState;
3191 TxResetType = TxCheckStuck(dev);
3192 if (rfState != eRfOff ||
3193 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3194 /* If driver is in the status of firmware download failure,
3195 * driver skips RF initialization and RF is in turned off
3196 * state. Driver should check whether Rx stuck and do silent
3197 * reset. And if driver is in firmware download failure status,
3198 * driver should initialize RF in the following silent reset
3201 * Driver should not check RX stuck in IBSS mode because it is
3202 * required to set Check BSSID in order to send beacon,
3203 * however, if check BSSID is set, STA cannot hear any packet
3206 RxResetType = RxCheckStuck(dev);
3208 if (TxResetType == RESET_TYPE_NORMAL ||
3209 RxResetType == RESET_TYPE_NORMAL) {
3210 return RESET_TYPE_NORMAL;
3211 } else if (TxResetType == RESET_TYPE_SILENT ||
3212 RxResetType == RESET_TYPE_SILENT) {
3213 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3214 return RESET_TYPE_SILENT;
3216 return RESET_TYPE_NORESET;
3220 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3221 static int _rtl8192_up(struct net_device *dev);
3222 static int rtl8192_close(struct net_device *dev);
3226 static void CamRestoreAllEntry(struct net_device *dev)
3229 struct r8192_priv *priv = ieee80211_priv(dev);
3230 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3232 static u8 CAM_CONST_ADDR[4][6] = {
3233 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3234 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3235 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3236 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3237 static u8 CAM_CONST_BROAD[] = {
3238 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3240 RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
3243 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3244 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3245 for (EntryId = 0; EntryId < 4; EntryId++) {
3246 MacAddr = CAM_CONST_ADDR[EntryId];
3247 setKey(dev, EntryId, EntryId,
3248 priv->ieee80211->pairwise_key_type,
3252 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3253 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3254 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3255 (u8 *)dev->dev_addr, 0, NULL);
3257 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3259 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3260 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3261 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3262 (u8 *)dev->dev_addr, 0, NULL);
3264 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3270 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3271 MacAddr = CAM_CONST_BROAD;
3272 for (EntryId = 1; EntryId < 4; EntryId++) {
3273 setKey(dev, EntryId, EntryId,
3274 priv->ieee80211->group_key_type,
3277 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3278 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3279 CAM_CONST_ADDR[0], 0, NULL);
3280 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3281 MacAddr = CAM_CONST_BROAD;
3282 for (EntryId = 1; EntryId < 4; EntryId++) {
3283 setKey(dev, EntryId, EntryId,
3284 priv->ieee80211->group_key_type,
3288 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3289 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3290 CAM_CONST_ADDR[0], 0, NULL);
3294 /* This function is used to fix Tx/Rx stop bug temporarily.
3295 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3296 * The method checking Tx/Rx stuck of this function is supported by FW,
3297 * which reports Tx and Rx counter to register 0x128 and 0x130.
3299 static void rtl819x_ifsilentreset(struct net_device *dev)
3301 struct r8192_priv *priv = ieee80211_priv(dev);
3303 int reset_status = 0;
3304 struct ieee80211_device *ieee = priv->ieee80211;
3307 /* If we need to check CCK stop, please uncomment this line. */
3308 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3310 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3313 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3315 /* Set the variable for reset. */
3316 priv->ResetProgress = RESET_TYPE_SILENT;
3317 mutex_lock(&priv->wx_mutex);
3318 if (priv->up == 0) {
3320 "%s():the driver is not up! return\n",
3322 mutex_unlock(&priv->wx_mutex);
3326 RT_TRACE(COMP_RESET,
3327 "%s():======>start to down the driver\n",
3330 rtl8192_rtx_disable(dev);
3331 rtl8192_cancel_deferred_work(priv);
3333 del_timer_sync(&priv->watch_dog_timer);
3335 ieee->sync_scan_hurryup = 1;
3336 if (ieee->state == IEEE80211_LINKED) {
3337 mutex_lock(&ieee->wx_mutex);
3338 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3339 ieee80211_stop_send_beacons(priv->ieee80211);
3340 del_timer_sync(&ieee->associate_timer);
3341 cancel_delayed_work(&ieee->associate_retry_wq);
3342 ieee80211_stop_scan(ieee);
3343 netif_carrier_off(dev);
3344 mutex_unlock(&ieee->wx_mutex);
3346 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3347 ieee80211_softmac_stop_protocol(priv->ieee80211);
3349 mutex_unlock(&priv->wx_mutex);
3350 RT_TRACE(COMP_RESET,
3351 "%s():<==========down process is finished\n",
3353 RT_TRACE(COMP_RESET,
3354 "%s():===========>start up the driver\n",
3356 reset_status = _rtl8192_up(dev);
3358 RT_TRACE(COMP_RESET,
3359 "%s():<===========up process is finished\n",
3361 if (reset_status == -EAGAIN) {
3362 if (reset_times < 3) {
3367 " ERR!!! %s(): Reset Failed!!\n",
3371 ieee->is_silent_reset = 1;
3372 EnableHWSecurityConfig8192(dev);
3373 if (ieee->state == IEEE80211_LINKED &&
3374 ieee->iw_mode == IW_MODE_INFRA) {
3375 ieee->set_chan(ieee->dev,
3376 ieee->current_network.channel);
3378 queue_work(ieee->wq, &ieee->associate_complete_wq);
3380 } else if (ieee->state == IEEE80211_LINKED &&
3381 ieee->iw_mode == IW_MODE_ADHOC) {
3382 ieee->set_chan(ieee->dev,
3383 ieee->current_network.channel);
3384 ieee->link_change(ieee->dev);
3386 ieee80211_start_send_beacons(ieee);
3388 if (ieee->data_hard_resume)
3389 ieee->data_hard_resume(ieee->dev);
3390 netif_carrier_on(ieee->dev);
3393 CamRestoreAllEntry(dev);
3395 priv->ResetProgress = RESET_TYPE_NORESET;
3396 priv->reset_count++;
3398 priv->bForcedSilentReset = false;
3399 priv->bResetInProgress = false;
3401 /* For test --> force write UFWP. */
3402 write_nic_byte(dev, UFWP, 1);
3403 RT_TRACE(COMP_RESET,
3404 "Reset finished!! ====>[%d]\n",
3409 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3410 u32 *TotalRxDataNum)
3416 *TotalRxDataNum = 0;
3418 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3419 (priv->ieee80211->LinkDetectInfo.SlotNum);
3420 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3421 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3422 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3423 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3424 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3425 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3426 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3431 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3433 struct delayed_work *dwork = to_delayed_work(work);
3434 struct r8192_priv *priv = container_of(dwork,
3435 struct r8192_priv, watch_dog_wq);
3436 struct net_device *dev = priv->ieee80211->dev;
3437 struct ieee80211_device *ieee = priv->ieee80211;
3438 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3439 static u8 check_reset_cnt;
3440 bool bBusyTraffic = false;
3441 u32 TotalRxBcnNum = 0;
3442 u32 TotalRxDataNum = 0;
3446 hal_dm_watchdog(dev);
3448 /* to get busy traffic condition */
3449 if (ieee->state == IEEE80211_LINKED) {
3450 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3451 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3452 bBusyTraffic = true;
3454 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3455 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3456 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3458 /* for AP roaming */
3459 if (priv->ieee80211->state == IEEE80211_LINKED &&
3460 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3461 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3462 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3464 if (rfState == eRfOff)
3465 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3468 "===>%s(): AP is power off, connect another one\n",
3470 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3471 notify_wx_assoc_event(priv->ieee80211);
3472 RemovePeerTS(priv->ieee80211,
3473 priv->ieee80211->current_network.bssid);
3474 priv->ieee80211->link_change(dev);
3475 queue_work(priv->ieee80211->wq,
3476 &priv->ieee80211->associate_procedure_wq);
3479 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3480 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3481 /* check if reset the driver */
3482 if (check_reset_cnt++ >= 3) {
3483 ResetType = rtl819x_ifcheck_resetornot(dev);
3484 check_reset_cnt = 3;
3486 /* This is control by OID set in Pomelo */
3487 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3488 (priv->bForcedSilentReset ||
3489 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3490 RT_TRACE(COMP_RESET,
3491 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3492 __func__, priv->force_reset, priv->ResetProgress,
3493 priv->bForcedSilentReset,
3494 priv->bDisableNormalResetCheck, ResetType);
3495 rtl819x_ifsilentreset(dev);
3497 priv->force_reset = false;
3498 priv->bForcedSilentReset = false;
3499 priv->bResetInProgress = false;
3500 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3503 static void watch_dog_timer_callback(unsigned long data)
3505 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3507 schedule_delayed_work(&priv->watch_dog_wq, 0);
3508 mod_timer(&priv->watch_dog_timer,
3509 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3512 static int _rtl8192_up(struct net_device *dev)
3514 struct r8192_priv *priv = ieee80211_priv(dev);
3515 int init_status = 0;
3518 priv->ieee80211->ieee_up = 1;
3519 RT_TRACE(COMP_INIT, "Bringing up iface");
3520 init_status = rtl8192_adapter_start(dev);
3522 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3524 priv->up = priv->ieee80211->ieee_up = 0;
3527 RT_TRACE(COMP_INIT, "start adapter finished\n");
3528 rtl8192_rx_enable(dev);
3529 if (priv->ieee80211->state != IEEE80211_LINKED)
3530 ieee80211_softmac_start_protocol(priv->ieee80211);
3531 ieee80211_reset_queue(priv->ieee80211);
3532 watch_dog_timer_callback((unsigned long)dev);
3533 if (!netif_queue_stopped(dev))
3534 netif_start_queue(dev);
3536 netif_wake_queue(dev);
3542 static int rtl8192_open(struct net_device *dev)
3544 struct r8192_priv *priv = ieee80211_priv(dev);
3547 mutex_lock(&priv->wx_mutex);
3548 ret = rtl8192_up(dev);
3549 mutex_unlock(&priv->wx_mutex);
3554 int rtl8192_up(struct net_device *dev)
3556 struct r8192_priv *priv = ieee80211_priv(dev);
3561 return _rtl8192_up(dev);
3565 static int rtl8192_close(struct net_device *dev)
3567 struct r8192_priv *priv = ieee80211_priv(dev);
3570 mutex_lock(&priv->wx_mutex);
3572 ret = rtl8192_down(dev);
3574 mutex_unlock(&priv->wx_mutex);
3579 int rtl8192_down(struct net_device *dev)
3581 struct r8192_priv *priv = ieee80211_priv(dev);
3588 priv->ieee80211->ieee_up = 0;
3589 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3591 if (!netif_queue_stopped(dev))
3592 netif_stop_queue(dev);
3594 rtl8192_rtx_disable(dev);
3596 /* Tx related queue release */
3597 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3598 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3599 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3600 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3602 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3603 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3605 /* as cancel_delayed_work will del work->timer, so if work is not
3606 * defined as struct delayed_work, it will corrupt
3608 rtl8192_cancel_deferred_work(priv);
3610 del_timer_sync(&priv->watch_dog_timer);
3613 ieee80211_softmac_stop_protocol(priv->ieee80211);
3614 memset(&priv->ieee80211->current_network, 0,
3615 offsetof(struct ieee80211_network, list));
3616 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3622 void rtl8192_commit(struct net_device *dev)
3624 struct r8192_priv *priv = ieee80211_priv(dev);
3625 int reset_status = 0;
3631 rtl8192_cancel_deferred_work(priv);
3632 del_timer_sync(&priv->watch_dog_timer);
3634 ieee80211_softmac_stop_protocol(priv->ieee80211);
3636 rtl8192_rtx_disable(dev);
3637 reset_status = _rtl8192_up(dev);
3640 static void rtl8192_restart(struct work_struct *work)
3642 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3644 struct net_device *dev = priv->ieee80211->dev;
3646 mutex_lock(&priv->wx_mutex);
3648 rtl8192_commit(dev);
3650 mutex_unlock(&priv->wx_mutex);
3653 static void r8192_set_multicast(struct net_device *dev)
3655 struct r8192_priv *priv = ieee80211_priv(dev);
3660 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3662 if (promisc != priv->promisc)
3664 priv->promisc = promisc;
3668 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3670 struct r8192_priv *priv = ieee80211_priv(dev);
3671 struct sockaddr *addr = mac;
3673 mutex_lock(&priv->wx_mutex);
3675 ether_addr_copy(dev->dev_addr, addr->sa_data);
3677 schedule_work(&priv->reset_wq);
3678 mutex_unlock(&priv->wx_mutex);
3683 /* based on ipw2200 driver */
3684 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3686 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3687 struct iwreq *wrq = (struct iwreq *)rq;
3689 struct ieee80211_device *ieee = priv->ieee80211;
3691 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3692 struct iw_point *p = &wrq->u.data;
3693 struct ieee_param *ipw = NULL;
3695 mutex_lock(&priv->wx_mutex);
3698 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3703 ipw = memdup_user(p->pointer, p->length);
3710 case RTL_IOCTL_WPA_SUPPLICANT:
3711 /* parse here for HW security */
3712 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3713 if (ipw->u.crypt.set_tx) {
3714 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3715 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3716 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3717 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3718 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3719 if (ipw->u.crypt.key_len == 13)
3720 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3721 else if (ipw->u.crypt.key_len == 5)
3722 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3724 ieee->pairwise_key_type = KEY_TYPE_NA;
3727 if (ieee->pairwise_key_type) {
3728 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3729 EnableHWSecurityConfig8192(dev);
3730 /* We fill both index entry and 4th
3731 * entry for pairwise key as in IPW
3732 * interface, adhoc will only get here,
3733 * so we need index entry for its
3734 * default key serching!
3736 setKey(dev, 4, ipw->u.crypt.idx,
3737 ieee->pairwise_key_type,
3738 (u8 *)ieee->ap_mac_addr,
3740 if (ieee->auth_mode != 2)
3741 setKey(dev, ipw->u.crypt.idx,
3743 ieee->pairwise_key_type,
3744 (u8 *)ieee->ap_mac_addr,
3748 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3749 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3750 ieee->group_key_type = KEY_TYPE_CCMP;
3751 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3752 ieee->group_key_type = KEY_TYPE_TKIP;
3753 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3754 if (ipw->u.crypt.key_len == 13)
3755 ieee->group_key_type = KEY_TYPE_WEP104;
3756 else if (ipw->u.crypt.key_len == 5)
3757 ieee->group_key_type = KEY_TYPE_WEP40;
3759 ieee->group_key_type = KEY_TYPE_NA;
3762 if (ieee->group_key_type) {
3763 setKey(dev, ipw->u.crypt.idx,
3767 ieee->group_key_type,
3777 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3788 mutex_unlock(&priv->wx_mutex);
3792 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3804 case DESC90_RATE5_5M:
3805 ret_rate = MGN_5_5M;
3807 case DESC90_RATE11M:
3816 case DESC90_RATE12M:
3819 case DESC90_RATE18M:
3822 case DESC90_RATE24M:
3825 case DESC90_RATE36M:
3828 case DESC90_RATE48M:
3831 case DESC90_RATE54M:
3838 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3845 case DESC90_RATEMCS0:
3846 ret_rate = MGN_MCS0;
3848 case DESC90_RATEMCS1:
3849 ret_rate = MGN_MCS1;
3851 case DESC90_RATEMCS2:
3852 ret_rate = MGN_MCS2;
3854 case DESC90_RATEMCS3:
3855 ret_rate = MGN_MCS3;
3857 case DESC90_RATEMCS4:
3858 ret_rate = MGN_MCS4;
3860 case DESC90_RATEMCS5:
3861 ret_rate = MGN_MCS5;
3863 case DESC90_RATEMCS6:
3864 ret_rate = MGN_MCS6;
3866 case DESC90_RATEMCS7:
3867 ret_rate = MGN_MCS7;
3869 case DESC90_RATEMCS8:
3870 ret_rate = MGN_MCS8;
3872 case DESC90_RATEMCS9:
3873 ret_rate = MGN_MCS9;
3875 case DESC90_RATEMCS10:
3876 ret_rate = MGN_MCS10;
3878 case DESC90_RATEMCS11:
3879 ret_rate = MGN_MCS11;
3881 case DESC90_RATEMCS12:
3882 ret_rate = MGN_MCS12;
3884 case DESC90_RATEMCS13:
3885 ret_rate = MGN_MCS13;
3887 case DESC90_RATEMCS14:
3888 ret_rate = MGN_MCS14;
3890 case DESC90_RATEMCS15:
3891 ret_rate = MGN_MCS15;
3893 case DESC90_RATEMCS32:
3894 ret_rate = 0x80 | 0x20;
3900 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3910 * Function: UpdateRxPktTimeStamp
3911 * Overview: Record the TSF time stamp when receiving a packet
3919 * (pRfd->Status.TimeStampHigh is updated)
3920 * (pRfd->Status.TimeStampLow is updated)
3924 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3925 struct ieee80211_rx_stats *stats)
3927 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3929 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3930 stats->mac_time[0] = priv->LastRxDescTSFLow;
3931 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3933 priv->LastRxDescTSFLow = stats->mac_time[0];
3934 priv->LastRxDescTSFHigh = stats->mac_time[1];
3939 static long rtl819x_translate_todbm(u8 signal_strength_index)
3941 long signal_power; /* in dBm. */
3943 /* Translate to dBm (x=0.5y-95). */
3944 signal_power = (long)((signal_strength_index + 1) >> 1);
3947 return signal_power;
3951 /* We can not declare RSSI/EVM total value of sliding window to
3952 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3953 * value will be kept in memory or disk. Declare the value in the adaptor
3954 * and it will be reinitialized when returned from S3/S4.
3956 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3957 struct ieee80211_rx_stats *pprevious_stats,
3958 struct ieee80211_rx_stats *pcurrent_stats)
3960 bool bcheck = false;
3962 u32 nspatial_stream, tmp_val;
3963 static u32 slide_rssi_index, slide_rssi_statistics;
3964 static u32 slide_evm_index, slide_evm_statistics;
3965 static u32 last_rssi, last_evm;
3967 static u32 slide_beacon_adc_pwdb_index;
3968 static u32 slide_beacon_adc_pwdb_statistics;
3969 static u32 last_beacon_adc_pwdb;
3971 struct rtl_80211_hdr_3addr *hdr;
3973 unsigned int frag, seq;
3975 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3976 sc = le16_to_cpu(hdr->seq_ctl);
3977 frag = WLAN_GET_SEQ_FRAG(sc);
3978 seq = WLAN_GET_SEQ_SEQ(sc);
3979 /* to record the sequence number */
3980 pcurrent_stats->Seq_Num = seq;
3982 /* Check whether we should take the previous packet into accounting */
3983 if (!pprevious_stats->bIsAMPDU) {
3984 /* if previous packet is not aggregated packet */
3988 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3989 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3990 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3991 priv->stats.slide_rssi_total -= last_rssi;
3993 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3995 priv->stats.slide_signal_strength[slide_rssi_index++] =
3996 pprevious_stats->SignalStrength;
3997 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3998 slide_rssi_index = 0;
4000 /* <1> Showed on UI for user, in dbm */
4001 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
4002 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
4003 pcurrent_stats->rssi = priv->stats.signal_strength;
4005 /* If the previous packet does not match the criteria, neglect it */
4006 if (!pprevious_stats->bPacketMatchBSSID) {
4007 if (!pprevious_stats->bToSelfBA)
4015 /* only rtl8190 supported
4016 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
4020 priv->stats.num_process_phyinfo++;
4022 /* record the general signal strength to the sliding window. */
4025 /* <2> Showed on UI for engineering
4026 * hardware does not provide rssi information for each rf path in CCK
4028 if (!pprevious_stats->bIsCCK &&
4029 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
4030 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
4031 if (!rtl8192_phy_CheckIsLegalRFPath(
4032 priv->ieee80211->dev, rfpath))
4035 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
4036 priv->stats.rx_rssi_percentage[rfpath] =
4037 pprevious_stats->RxMIMOSignalStrength[rfpath];
4038 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
4039 priv->stats.rx_rssi_percentage[rfpath] =
4040 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4041 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4042 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4044 priv->stats.rx_rssi_percentage[rfpath] =
4045 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4046 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4049 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4050 priv->stats.rx_rssi_percentage[rfpath]);
4056 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4057 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4058 pprevious_stats->RxPWDBAll);
4060 if (pprevious_stats->bPacketBeacon) {
4061 /* record the beacon pwdb to the sliding window. */
4062 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4063 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4064 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4065 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4067 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4068 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4069 slide_beacon_adc_pwdb_index++;
4070 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4071 slide_beacon_adc_pwdb_index = 0;
4072 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4073 if (pprevious_stats->RxPWDBAll >= 3)
4074 pprevious_stats->RxPWDBAll -= 3;
4077 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4078 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4079 pprevious_stats->RxPWDBAll);
4082 if (pprevious_stats->bPacketToSelf ||
4083 pprevious_stats->bPacketBeacon ||
4084 pprevious_stats->bToSelfBA) {
4085 if (priv->undecorated_smoothed_pwdb < 0)
4087 priv->undecorated_smoothed_pwdb =
4088 pprevious_stats->RxPWDBAll;
4089 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4090 priv->undecorated_smoothed_pwdb =
4091 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4092 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4093 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4095 priv->undecorated_smoothed_pwdb =
4096 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4097 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4102 /* record the general EVM to the sliding window. */
4103 if (pprevious_stats->SignalQuality) {
4104 if (pprevious_stats->bPacketToSelf ||
4105 pprevious_stats->bPacketBeacon ||
4106 pprevious_stats->bToSelfBA) {
4107 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4108 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4109 last_evm = priv->stats.slide_evm[slide_evm_index];
4110 priv->stats.slide_evm_total -= last_evm;
4113 priv->stats.slide_evm_total +=
4114 pprevious_stats->SignalQuality;
4116 priv->stats.slide_evm[slide_evm_index++] =
4117 pprevious_stats->SignalQuality;
4118 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4119 slide_evm_index = 0;
4121 /* <1> Showed on UI for user, in percentage. */
4122 tmp_val = priv->stats.slide_evm_total /
4123 slide_evm_statistics;
4124 priv->stats.signal_quality = tmp_val;
4125 /* Showed on UI for user in Windows Vista,
4128 priv->stats.last_signal_strength_inpercent = tmp_val;
4131 /* <2> Showed on UI for engineering */
4132 if (pprevious_stats->bPacketToSelf ||
4133 pprevious_stats->bPacketBeacon ||
4134 pprevious_stats->bToSelfBA) {
4135 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4136 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4137 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4138 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4139 priv->stats.rx_evm_percentage[nspatial_stream] =
4140 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4141 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4148 /*-----------------------------------------------------------------------------
4149 * Function: rtl819x_query_rxpwrpercentage()
4153 * Input: char antpower
4157 * Return: 0-100 percentage
4158 *---------------------------------------------------------------------------
4160 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
4162 if ((antpower <= -100) || (antpower >= 20))
4164 else if (antpower >= 0)
4167 return 100 + antpower;
4169 } /* QueryRxPwrPercentage */
4171 static u8 rtl819x_evm_dbtopercentage(s8 value)
4181 ret_val = 0 - ret_val;
4188 /* We want good-looking for signal strength/quality */
4189 static long rtl819x_signal_scale_mapping(long currsig)
4193 /* Step 1. Scale mapping. */
4194 if (currsig >= 61 && currsig <= 100)
4195 retsig = 90 + ((currsig - 60) / 4);
4196 else if (currsig >= 41 && currsig <= 60)
4197 retsig = 78 + ((currsig - 40) / 2);
4198 else if (currsig >= 31 && currsig <= 40)
4199 retsig = 66 + (currsig - 30);
4200 else if (currsig >= 21 && currsig <= 30)
4201 retsig = 54 + (currsig - 20);
4202 else if (currsig >= 5 && currsig <= 20)
4203 retsig = 42 + (((currsig - 5) * 2) / 3);
4204 else if (currsig == 4)
4206 else if (currsig == 3)
4208 else if (currsig == 2)
4210 else if (currsig == 1)
4218 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4223 switch (pdrvinfo->RxRate) {
4226 case DESC90_RATE5_5M:
4227 case DESC90_RATE11M:
4234 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4235 struct ieee80211_rx_stats *pstats,
4236 rx_drvinfo_819x_usb *pdrvinfo,
4237 struct ieee80211_rx_stats *precord_stats,
4238 bool bpacket_match_bssid,
4239 bool bpacket_toself,
4243 phy_sts_ofdm_819xusb_t *pofdm_buf;
4244 phy_sts_cck_819xusb_t *pcck_buf;
4245 phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4247 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4248 s8 rx_pwr[4], rx_pwr_all = 0;
4249 s8 rx_snrX, rx_evmX;
4251 u32 RSSI, total_rssi = 0;
4257 priv->stats.numqry_phystatus++;
4259 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4261 /* Record it for next packet processing */
4262 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4263 pstats->bPacketMatchBSSID =
4264 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4265 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4266 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4267 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4268 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4270 prxpkt = (u8 *)pdrvinfo;
4272 /* Move pointer to the 16th bytes. Phy status start address. */
4273 prxpkt += sizeof(rx_drvinfo_819x_usb);
4275 /* Initial the cck and ofdm buffer pointer */
4276 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4277 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4279 pstats->RxMIMOSignalQuality[0] = -1;
4280 pstats->RxMIMOSignalQuality[1] = -1;
4281 precord_stats->RxMIMOSignalQuality[0] = -1;
4282 precord_stats->RxMIMOSignalQuality[1] = -1;
4285 /* (1)Hardware does not provide RSSI for CCK */
4287 /* (2)PWDB, Average PWDB calculated by hardware
4288 * (for rate adaptive)
4292 priv->stats.numqry_phystatusCCK++;
4294 if (!priv->bCckHighPower) {
4295 report = pcck_buf->cck_agc_rpt & 0xc0;
4299 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4302 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4305 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4308 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4312 report = pcck_buf->cck_agc_rpt & 0x60;
4316 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4319 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4322 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4325 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4330 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4331 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4332 pstats->RecvSignalPower = pwdb_all;
4334 /* (3) Get Signal Quality (EVM) */
4336 if (pstats->RxPWDBAll > 40) {
4339 sq = pcck_buf->sq_rpt;
4341 if (pcck_buf->sq_rpt > 64)
4343 else if (pcck_buf->sq_rpt < 20)
4346 sq = ((64 - sq) * 100) / 44;
4348 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4349 pstats->RxMIMOSignalQuality[0] =
4350 precord_stats->RxMIMOSignalQuality[0] = sq;
4351 pstats->RxMIMOSignalQuality[1] =
4352 precord_stats->RxMIMOSignalQuality[1] = -1;
4355 priv->stats.numqry_phystatusHT++;
4357 /* (1)Get RSSI for HT rate */
4358 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4359 /* We will judge RF RX path now. */
4360 if (priv->brfpath_rxenable[i])
4365 if (!rtl8192_phy_CheckIsLegalRFPath(
4366 priv->ieee80211->dev, i))
4370 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4372 /* Get Rx snr value in DB */
4373 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4374 rx_snrX = (s8)(tmp_rxsnr);
4376 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4378 /* Translate DBM to percentage. */
4379 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4382 /* Record Signal Strength for next packet */
4383 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4384 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4388 /* (2)PWDB, Average PWDB calculated by hardware
4389 * (for rate adaptive)
4391 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4392 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4394 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4395 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4397 /* (3)EVM of HT rate */
4398 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4399 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4400 /* both spatial stream make sense */
4401 max_spatial_stream = 2;
4403 /* only spatial stream 1 makes sense */
4404 max_spatial_stream = 1;
4406 for (i = 0; i < max_spatial_stream; i++) {
4407 tmp_rxevm = pofdm_buf->rxevm_X[i];
4408 rx_evmX = (s8)(tmp_rxevm);
4410 /* Do not use shift operation like "rx_evmX >>= 1"
4411 * because the compiler of free build environment will
4412 * set the most significant bit to "zero" when doing
4413 * shifting operation which may change a negative value
4414 * to positive one, then the dbm value (which is
4415 * supposed to be negative) is not correct anymore.
4417 rx_evmX /= 2; /* dbm */
4419 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4421 /* Fill value in RFD, Get the first spatial
4424 pstats->SignalQuality =
4425 precord_stats->SignalQuality =
4427 pstats->RxMIMOSignalQuality[i] =
4428 precord_stats->RxMIMOSignalQuality[i] =
4433 /* record rx statistics for debug */
4434 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4435 prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4437 if (pdrvinfo->BW) /* 40M channel */
4438 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4439 else /* 20M channel */
4440 priv->stats.received_bwtype[0]++;
4443 /* UI BSS List signal strength(in percentage), make it good looking,
4444 * from 0~100. It is assigned to the BSS List in
4445 * GetValueFromBeaconOrProbeRsp().
4448 pstats->SignalStrength =
4449 precord_stats->SignalStrength =
4450 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4452 /* We can judge RX path number now. */
4453 if (rf_rx_num != 0) {
4454 pstats->SignalStrength =
4455 precord_stats->SignalStrength =
4456 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4459 } /* QueryRxPhyStatus8190Pci */
4461 static void rtl8192_record_rxdesc_forlateruse(
4462 struct ieee80211_rx_stats *psrc_stats,
4463 struct ieee80211_rx_stats *ptarget_stats)
4465 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4466 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4467 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4471 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4472 struct ieee80211_rx_stats *pstats,
4473 rx_drvinfo_819x_usb *pdrvinfo)
4475 /* TODO: We must only check packet for current MAC address.
4478 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4479 struct net_device *dev = info->dev;
4480 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4481 bool bpacket_match_bssid, bpacket_toself;
4482 bool bPacketBeacon = false, bToSelfBA = false;
4483 static struct ieee80211_rx_stats previous_stats;
4484 struct rtl_80211_hdr_3addr *hdr;
4487 /* Get Signal Quality for only RX data queue (but not command queue) */
4492 /* Get MAC frame start address. */
4493 tmp_buf = (u8 *)skb->data;
4495 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4496 fc = le16_to_cpu(hdr->frame_ctl);
4497 type = WLAN_FC_GET_TYPE(fc);
4498 praddr = hdr->addr1;
4500 /* Check if the received packet is acceptable. */
4501 bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
4502 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4503 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4504 bpacket_toself = bpacket_match_bssid &
4505 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4507 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4508 bPacketBeacon = true;
4509 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4510 if ((eqMacAddr(praddr, dev->dev_addr)))
4516 if (bpacket_match_bssid)
4517 priv->stats.numpacket_matchbssid++;
4519 priv->stats.numpacket_toself++;
4520 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4521 * Because phy information is contained in the last packet of AMPDU
4522 * only, so driver should process phy information of previous packet
4524 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4525 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4526 bpacket_match_bssid, bpacket_toself,
4527 bPacketBeacon, bToSelfBA);
4528 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4532 * Function: UpdateReceivedRateHistogramStatistics
4533 * Overview: Record the received data rate
4536 * struct net_device *dev
4537 * struct ieee80211_rx_stats *stats
4541 * (priv->stats.ReceivedRateHistogram[] is updated)
4546 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4547 struct ieee80211_rx_stats *stats)
4549 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4550 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4553 /* 1: short preamble/GI, 0: long preamble/GI */
4554 u32 preamble_guardinterval;
4559 else if (stats->bICV)
4562 if (stats->bShortPreamble)
4563 preamble_guardinterval = 1; /* short */
4565 preamble_guardinterval = 0; /* long */
4567 switch (stats->rate) {
4581 /* Legacy OFDM rate */
4606 /* 11n High throughput rate */
4659 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4660 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4661 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4665 static void query_rxdesc_status(struct sk_buff *skb,
4666 struct ieee80211_rx_stats *stats,
4667 bool bIsRxAggrSubframe)
4669 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4670 struct net_device *dev = info->dev;
4671 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4672 rx_drvinfo_819x_usb *driver_info = NULL;
4674 /* Get Rx Descriptor Information */
4675 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4677 stats->Length = desc->Length;
4678 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4679 stats->RxBufShift = 0;
4680 stats->bICV = desc->ICV;
4681 stats->bCRC = desc->CRC32;
4682 stats->bHwError = stats->bCRC | stats->bICV;
4683 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4684 stats->Decrypted = !desc->SWDec;
4686 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4687 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4688 stats->bHwError = false;
4690 stats->bHwError = stats->bCRC | stats->bICV;
4692 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4693 stats->bHwError |= 1;
4694 /* Get Driver Info */
4695 /* TODO: Need to verify it on FGPA platform
4696 * Driver info are written to the RxBuffer following rx desc
4698 if (stats->RxDrvInfoSize != 0) {
4699 driver_info = (rx_drvinfo_819x_usb *)(
4701 + sizeof(rx_desc_819x_usb)
4706 if (!stats->bHwError) {
4709 ret_rate = HwRateToMRate90(driver_info->RxHT,
4710 driver_info->RxRate);
4711 if (ret_rate == 0xff) {
4712 /* Abnormal Case: Receive CRC OK packet with Rx
4713 * descriptor indicating non supported rate.
4714 * Special Error Handling here
4717 stats->bHwError = 1;
4718 /* Set 1M rate by default */
4719 stats->rate = MGN_1M;
4721 stats->rate = ret_rate;
4727 stats->bShortPreamble = driver_info->SPLCP;
4730 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4732 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4733 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4734 (driver_info->FirstAGGR == 1);
4735 stats->TimeStampLow = driver_info->TSFL;
4737 UpdateRxPktTimeStamp8190(dev, stats);
4740 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4741 RT_TRACE(COMP_RXDESC,
4742 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4743 driver_info->FirstAGGR, driver_info->PartAggr);
4746 skb_pull(skb, sizeof(rx_desc_819x_usb));
4747 /* Get Total offset of MPDU Frame Body */
4748 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4750 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4754 stats->RxIs40MHzPacket = driver_info->BW;
4755 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4759 static void rtl8192_rx_nomal(struct sk_buff *skb)
4761 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4762 struct net_device *dev = info->dev;
4763 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4764 struct ieee80211_rx_stats stats = {
4766 .noise = 0x100 - 98,
4768 .freq = IEEE80211_24GHZ_BAND,
4771 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4772 bool unicast_packet = false;
4774 /* 20 is for ps-poll */
4775 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4776 /* first packet should not contain Rx aggregation header */
4777 query_rxdesc_status(skb, &stats, false);
4779 /* hardware related info */
4780 /* Process the MPDU received */
4781 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4783 rx_pkt_len = skb->len;
4784 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4785 unicast_packet = false;
4786 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4788 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4791 /* unicast packet */
4792 unicast_packet = true;
4795 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4796 dev_kfree_skb_any(skb);
4798 priv->stats.rxoktotal++;
4800 priv->stats.rxbytesunicast += rx_pkt_len;
4803 priv->stats.rxurberr++;
4804 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4805 dev_kfree_skb_any(skb);
4809 static void rtl819xusb_process_received_packet(
4810 struct net_device *dev,
4811 struct ieee80211_rx_stats *pstats)
4815 struct r8192_priv *priv = ieee80211_priv(dev);
4817 /* Get shifted bytes of Starting address of 802.11 header. */
4818 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4819 frame = pstats->virtual_address;
4820 frame_len = pstats->packetlength;
4821 #ifdef TODO /* about HCT */
4822 if (!Adapter->bInHctTest)
4823 CountRxErrStatistics(Adapter, pRfd);
4825 #ifdef ENABLE_PS /* for adding ps function in future */
4826 RT_RF_POWER_STATE rtState;
4827 /* When RF is off, we should not count the packet for hw/sw synchronize
4828 * reason, ie. there may be a duration while sw switch is changed and
4829 * hw switch is being changed.
4831 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4833 if (rtState == eRfOff)
4836 priv->stats.rxframgment++;
4839 RmMonitorSignalStrength(Adapter, pRfd);
4841 /* We have to release RFD and return if rx pkt is cmd pkt. */
4842 if (rtl819xusb_rx_command_packet(dev, pstats))
4852 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4853 struct ieee80211_rx_stats *stats)
4855 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4857 /* Get Rx Descriptor Information */
4858 stats->virtual_address = (u8 *)skb->data;
4859 stats->Length = desc->Length;
4860 stats->RxDrvInfoSize = 0;
4861 stats->RxBufShift = 0;
4862 stats->packetlength = stats->Length - scrclng;
4863 stats->fraglength = stats->packetlength;
4864 stats->fragoffset = 0;
4865 stats->ntotalfrag = 1;
4869 static void rtl8192_rx_cmd(struct sk_buff *skb)
4871 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4872 struct net_device *dev = info->dev;
4874 struct ieee80211_rx_stats stats = {
4876 .noise = 0x100 - 98,
4878 .freq = IEEE80211_24GHZ_BAND,
4881 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4882 query_rx_cmdpkt_desc_status(skb, &stats);
4883 /* prfd->queue_id = 1; */
4885 /* Process the command packet received. */
4887 rtl819xusb_process_received_packet(dev, &stats);
4889 dev_kfree_skb_any(skb);
4893 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4895 struct sk_buff *skb;
4896 struct rtl8192_rx_info *info;
4898 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4899 info = (struct rtl8192_rx_info *)skb->cb;
4900 switch (info->out_pipe) {
4901 /* Nomal packet pipe */
4903 priv->IrpPendingCount--;
4904 rtl8192_rx_nomal(skb);
4907 /* Command packet pipe */
4909 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4912 rtl8192_rx_cmd(skb);
4915 default: /* should never get here! */
4916 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4924 static const struct net_device_ops rtl8192_netdev_ops = {
4925 .ndo_open = rtl8192_open,
4926 .ndo_stop = rtl8192_close,
4927 .ndo_get_stats = rtl8192_stats,
4928 .ndo_tx_timeout = tx_timeout,
4929 .ndo_do_ioctl = rtl8192_ioctl,
4930 .ndo_set_rx_mode = r8192_set_multicast,
4931 .ndo_set_mac_address = r8192_set_mac_adr,
4932 .ndo_validate_addr = eth_validate_addr,
4933 .ndo_start_xmit = ieee80211_xmit,
4937 /****************************************************************************
4938 * ---------------------------- USB_STUFF---------------------------
4939 *****************************************************************************/
4941 static int rtl8192_usb_probe(struct usb_interface *intf,
4942 const struct usb_device_id *id)
4944 struct net_device *dev = NULL;
4945 struct r8192_priv *priv = NULL;
4946 struct usb_device *udev = interface_to_usbdev(intf);
4949 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4951 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4955 usb_set_intfdata(intf, dev);
4956 SET_NETDEV_DEV(dev, &intf->dev);
4957 priv = ieee80211_priv(dev);
4958 priv->ieee80211 = netdev_priv(dev);
4961 dev->netdev_ops = &rtl8192_netdev_ops;
4963 dev->wireless_handlers = &r8192_wx_handlers_def;
4965 dev->type = ARPHRD_ETHER;
4967 dev->watchdog_timeo = HZ * 3;
4969 if (dev_alloc_name(dev, ifname) < 0) {
4971 "Oops: devname already taken! Trying wlan%%d...\n");
4973 dev_alloc_name(dev, ifname);
4976 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4977 if (rtl8192_init(dev) != 0) {
4978 RT_TRACE(COMP_ERR, "Initialization failed");
4982 netif_carrier_off(dev);
4983 netif_stop_queue(dev);
4985 ret = register_netdev(dev);
4989 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4990 rtl8192_proc_init_one(dev);
4993 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4998 kfree(priv->pFirmware);
4999 priv->pFirmware = NULL;
5000 rtl8192_usb_deleteendpoints(dev);
5003 free_ieee80211(dev);
5005 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
5009 /* detach all the work and timer structure declared or inititialize
5010 * in r8192U_init function.
5012 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
5014 cancel_work_sync(&priv->reset_wq);
5015 cancel_delayed_work(&priv->watch_dog_wq);
5016 cancel_delayed_work(&priv->update_beacon_wq);
5017 cancel_work_sync(&priv->qos_activate);
5021 static void rtl8192_usb_disconnect(struct usb_interface *intf)
5023 struct net_device *dev = usb_get_intfdata(intf);
5024 struct r8192_priv *priv = ieee80211_priv(dev);
5027 unregister_netdev(dev);
5030 "=============>wlan driver to be removed\n");
5031 rtl8192_proc_remove_one(dev);
5034 kfree(priv->pFirmware);
5035 priv->pFirmware = NULL;
5036 rtl8192_usb_deleteendpoints(dev);
5039 free_ieee80211(dev);
5040 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5043 static int __init rtl8192_usb_module_init(void)
5047 #ifdef CONFIG_IEEE80211_DEBUG
5048 ret = ieee80211_debug_init();
5050 pr_err("ieee80211_debug_init() failed %d\n", ret);
5054 ret = ieee80211_crypto_init();
5056 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5060 ret = ieee80211_crypto_tkip_init();
5062 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5066 ret = ieee80211_crypto_ccmp_init();
5068 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5072 ret = ieee80211_crypto_wep_init();
5074 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5078 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5079 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5080 RT_TRACE(COMP_INIT, "Initializing module");
5081 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5082 rtl8192_proc_module_init();
5083 return usb_register(&rtl8192_usb_driver);
5087 static void __exit rtl8192_usb_module_exit(void)
5089 usb_deregister(&rtl8192_usb_driver);
5091 RT_TRACE(COMP_DOWN, "Exiting");
5094 void EnableHWSecurityConfig8192(struct net_device *dev)
5096 u8 SECR_value = 0x0;
5097 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5098 struct ieee80211_device *ieee = priv->ieee80211;
5100 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5101 if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
5102 SECR_value |= SCR_RxUseDK;
5103 SECR_value |= SCR_TxUseDK;
5104 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5105 SECR_value |= SCR_RxUseDK;
5106 SECR_value |= SCR_TxUseDK;
5108 /* add HWSec active enable here.
5109 * default using hwsec. when peer AP is in N mode only and
5110 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5111 * it), use software security. when peer AP is in b,g,n mode mixed and
5112 * pairwise_key_type is none_aes, use g mode hw security.
5115 ieee->hwsec_active = 1;
5117 /* add hwsec_support flag to totol control hw_sec on/off */
5118 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5119 ieee->hwsec_active = 0;
5120 SECR_value &= ~SCR_RxDecEnable;
5122 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5123 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5125 write_nic_byte(dev, SECR, SECR_value);
5129 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5130 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5132 u32 TargetCommand = 0;
5133 u32 TargetContent = 0;
5137 if (EntryNo >= TOTAL_CAM_ENTRY)
5138 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5141 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5142 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5145 usConfig |= BIT(15) | (KeyType << 2);
5147 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
5150 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5151 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5152 TargetCommand |= BIT(31) | BIT(16);
5154 if (i == 0) { /* MAC|Config */
5155 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5156 (u32)(*(MacAddr + 1)) << 24 |
5159 write_nic_dword(dev, WCAMI, TargetContent);
5160 write_nic_dword(dev, RWCAM, TargetCommand);
5161 } else if (i == 1) { /* MAC */
5162 TargetContent = (u32)(*(MacAddr + 2)) |
5163 (u32)(*(MacAddr + 3)) << 8 |
5164 (u32)(*(MacAddr + 4)) << 16 |
5165 (u32)(*(MacAddr + 5)) << 24;
5166 write_nic_dword(dev, WCAMI, TargetContent);
5167 write_nic_dword(dev, RWCAM, TargetCommand);
5171 write_nic_dword(dev, WCAMI,
5172 *(KeyContent + i - 2));
5173 write_nic_dword(dev, RWCAM, TargetCommand);
5179 /***************************************************************************
5180 * ------------------- module init / exit stubs ----------------
5181 ****************************************************************************/
5182 module_init(rtl8192_usb_module_init);
5183 module_exit(rtl8192_usb_module_exit);