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, 500);
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, 500);
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, 500);
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 *****************************************************************************
509 static struct proc_dir_entry *rtl8192_proc;
511 static int proc_get_stats_ap(struct seq_file *m, void *v)
513 struct net_device *dev = m->private;
514 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
515 struct ieee80211_device *ieee = priv->ieee80211;
516 struct ieee80211_network *target;
518 list_for_each_entry(target, &ieee->network_list, list) {
519 const char *wpa = "non_WPA";
521 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
524 seq_printf(m, "%s %s\n", target->ssid, wpa);
530 static int proc_get_registers(struct seq_file *m, void *v)
532 struct net_device *dev = m->private;
533 int i, n, max = 0xff;
536 seq_puts(m, "\n####################page 0##################\n ");
538 for (n = 0; n <= max;) {
539 seq_printf(m, "\nD: %2x > ", n);
541 for (i = 0; i < 16 && n <= max; i++, n++) {
542 read_nic_byte(dev, 0x000 | n, &byte_rd);
543 seq_printf(m, "%2x ", byte_rd);
547 seq_puts(m, "\n####################page 1##################\n ");
548 for (n = 0; n <= max;) {
549 seq_printf(m, "\nD: %2x > ", n);
551 for (i = 0; i < 16 && n <= max; i++, n++) {
552 read_nic_byte(dev, 0x100 | n, &byte_rd);
553 seq_printf(m, "%2x ", byte_rd);
557 seq_puts(m, "\n####################page 3##################\n ");
558 for (n = 0; n <= max;) {
559 seq_printf(m, "\nD: %2x > ", n);
561 for (i = 0; i < 16 && n <= max; i++, n++) {
562 read_nic_byte(dev, 0x300 | n, &byte_rd);
563 seq_printf(m, "%2x ", byte_rd);
571 static int proc_get_stats_tx(struct seq_file *m, void *v)
573 struct net_device *dev = m->private;
574 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
577 "TX VI priority ok int: %lu\n"
578 "TX VI priority error int: %lu\n"
579 "TX VO priority ok int: %lu\n"
580 "TX VO priority error int: %lu\n"
581 "TX BE priority ok int: %lu\n"
582 "TX BE priority error int: %lu\n"
583 "TX BK priority ok int: %lu\n"
584 "TX BK priority error int: %lu\n"
585 "TX MANAGE priority ok int: %lu\n"
586 "TX MANAGE priority error int: %lu\n"
587 "TX BEACON priority ok int: %lu\n"
588 "TX BEACON priority error int: %lu\n"
589 "TX queue resume: %lu\n"
590 "TX queue stopped?: %d\n"
591 "TX fifo overflow: %lu\n"
596 "TX VI dropped: %lu\n"
597 "TX VO dropped: %lu\n"
598 "TX BE dropped: %lu\n"
599 "TX BK dropped: %lu\n"
600 "TX total data packets %lu\n",
601 priv->stats.txviokint,
603 priv->stats.txvookint,
605 priv->stats.txbeokint,
607 priv->stats.txbkokint,
609 priv->stats.txmanageokint,
610 priv->stats.txmanageerr,
611 priv->stats.txbeaconokint,
612 priv->stats.txbeaconerr,
613 priv->stats.txresumed,
614 netif_queue_stopped(dev),
615 priv->stats.txoverflow,
616 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
617 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
618 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
619 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
620 priv->stats.txvidrop,
621 priv->stats.txvodrop,
622 priv->stats.txbedrop,
623 priv->stats.txbkdrop,
624 priv->stats.txdatapkt
630 static int proc_get_stats_rx(struct seq_file *m, void *v)
632 struct net_device *dev = m->private;
633 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
637 "RX urb status error: %lu\n"
638 "RX invalid urb error: %lu\n",
639 priv->stats.rxoktotal,
640 priv->stats.rxstaterr,
641 priv->stats.rxurberr);
646 static void rtl8192_proc_module_init(void)
648 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
649 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
653 * seq_file wrappers for procfile show routines.
655 static int rtl8192_proc_open(struct inode *inode, struct file *file)
657 struct net_device *dev = proc_get_parent_data(inode);
658 int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
660 return single_open(file, show, dev);
663 static const struct file_operations rtl8192_proc_fops = {
664 .open = rtl8192_proc_open,
667 .release = single_release,
671 * Table of proc files we need to create.
673 struct rtl8192_proc_file {
675 int (*show)(struct seq_file *, void *);
678 static const struct rtl8192_proc_file rtl8192_proc_files[] = {
679 { "stats-rx", &proc_get_stats_rx },
680 { "stats-tx", &proc_get_stats_tx },
681 { "stats-ap", &proc_get_stats_ap },
682 { "registers", &proc_get_registers },
686 static void rtl8192_proc_init_one(struct net_device *dev)
688 const struct rtl8192_proc_file *f;
689 struct proc_dir_entry *dir;
692 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
695 "Unable to initialize /proc/net/rtl8192/%s\n",
700 for (f = rtl8192_proc_files; f->name[0]; f++) {
701 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
702 &rtl8192_proc_fops, f->show)) {
704 "Unable to initialize /proc/net/rtl8192/%s/%s\n",
712 static void rtl8192_proc_remove_one(struct net_device *dev)
714 remove_proc_subtree(dev->name, rtl8192_proc);
717 /****************************************************************************
718 -----------------------------MISC STUFF-------------------------
719 *****************************************************************************/
721 short check_nic_enough_desc(struct net_device *dev, int queue_index)
723 struct r8192_priv *priv = ieee80211_priv(dev);
724 int used = atomic_read(&priv->tx_pending[queue_index]);
726 return (used < MAX_TX_URB);
729 static void tx_timeout(struct net_device *dev)
731 struct r8192_priv *priv = ieee80211_priv(dev);
733 schedule_work(&priv->reset_wq);
736 void rtl8192_update_msr(struct net_device *dev)
738 struct r8192_priv *priv = ieee80211_priv(dev);
741 read_nic_byte(dev, MSR, &msr);
742 msr &= ~MSR_LINK_MASK;
744 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
745 * msr must be updated if the state is ASSOCIATING.
746 * this is intentional and make sense for ad-hoc and
747 * master (see the create BSS/IBSS func)
749 if (priv->ieee80211->state == IEEE80211_LINKED) {
750 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
751 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
752 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
753 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
754 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
755 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
758 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
761 write_nic_byte(dev, MSR, msr);
764 void rtl8192_set_chan(struct net_device *dev, short ch)
766 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
768 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
771 /* this hack should avoid frame TX during channel setting*/
773 /* need to implement rf set channel here */
775 if (priv->rf_set_chan)
776 priv->rf_set_chan(dev, priv->chan);
780 static void rtl8192_rx_isr(struct urb *urb);
782 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
784 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
785 + pstats->RxBufShift);
788 static int rtl8192_rx_initiate(struct net_device *dev)
790 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
793 struct rtl8192_rx_info *info;
795 /* nomal packet rx procedure */
796 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
797 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
800 entry = usb_alloc_urb(0, GFP_KERNEL);
805 usb_fill_bulk_urb(entry, priv->udev,
806 usb_rcvbulkpipe(priv->udev, 3),
807 skb_tail_pointer(skb),
808 RX_URB_SIZE, rtl8192_rx_isr, skb);
809 info = (struct rtl8192_rx_info *)skb->cb;
812 info->out_pipe = 3; /* denote rx normal packet queue */
813 skb_queue_tail(&priv->rx_queue, skb);
814 usb_submit_urb(entry, GFP_KERNEL);
817 /* command packet rx procedure */
818 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
819 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
822 entry = usb_alloc_urb(0, GFP_KERNEL);
827 usb_fill_bulk_urb(entry, priv->udev,
828 usb_rcvbulkpipe(priv->udev, 9),
829 skb_tail_pointer(skb),
830 RX_URB_SIZE, rtl8192_rx_isr, skb);
831 info = (struct rtl8192_rx_info *)skb->cb;
834 info->out_pipe = 9; /* denote rx cmd packet queue */
835 skb_queue_tail(&priv->rx_queue, skb);
836 usb_submit_urb(entry, GFP_KERNEL);
842 void rtl8192_set_rxconf(struct net_device *dev)
844 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
847 read_nic_dword(dev, RCR, &rxconf);
848 rxconf = rxconf & ~MAC_FILTER_MASK;
849 rxconf = rxconf | RCR_AMF;
850 rxconf = rxconf | RCR_ADF;
851 rxconf = rxconf | RCR_AB;
852 rxconf = rxconf | RCR_AM;
854 if (dev->flags & IFF_PROMISC)
855 DMESG("NIC in promisc mode");
857 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
858 dev->flags & IFF_PROMISC) {
859 rxconf = rxconf | RCR_AAP;
861 rxconf = rxconf | RCR_APM;
862 rxconf = rxconf | RCR_CBSSID;
866 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
867 rxconf = rxconf | RCR_AICV;
868 rxconf = rxconf | RCR_APWRMGT;
871 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
872 rxconf = rxconf | RCR_ACRC32;
875 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
876 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
877 rxconf = rxconf & ~MAX_RX_DMA_MASK;
878 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
880 rxconf = rxconf | RCR_ONLYERLPKT;
882 write_nic_dword(dev, RCR, rxconf);
885 /* wait to be removed */
886 void rtl8192_rx_enable(struct net_device *dev)
888 rtl8192_rx_initiate(dev);
892 void rtl8192_tx_enable(struct net_device *dev)
898 void rtl8192_rtx_disable(struct net_device *dev)
901 struct r8192_priv *priv = ieee80211_priv(dev);
903 struct rtl8192_rx_info *info;
905 read_nic_byte(dev, CMDR, &cmd);
906 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
907 force_pci_posting(dev);
910 while ((skb = __skb_dequeue(&priv->rx_queue))) {
911 info = (struct rtl8192_rx_info *)skb->cb;
915 usb_kill_urb(info->urb);
919 if (skb_queue_len(&priv->skb_queue))
920 netdev_warn(dev, "skb_queue not empty\n");
922 skb_queue_purge(&priv->skb_queue);
925 /* The prototype of rx_isr has changed since one version of Linux Kernel */
926 static void rtl8192_rx_isr(struct urb *urb)
928 struct sk_buff *skb = (struct sk_buff *)urb->context;
929 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
930 struct net_device *dev = info->dev;
931 struct r8192_priv *priv = ieee80211_priv(dev);
932 int out_pipe = info->out_pipe;
938 if (unlikely(urb->status)) {
940 priv->stats.rxstaterr++;
941 priv->ieee80211->stats.rx_errors++;
945 skb_unlink(skb, &priv->rx_queue);
946 skb_put(skb, urb->actual_length);
948 skb_queue_tail(&priv->skb_queue, skb);
949 tasklet_schedule(&priv->irq_rx_tasklet);
951 skb = dev_alloc_skb(RX_URB_SIZE);
952 if (unlikely(!skb)) {
954 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
955 /* TODO check rx queue length and refill *somewhere* */
959 usb_fill_bulk_urb(urb, priv->udev,
960 usb_rcvbulkpipe(priv->udev, out_pipe),
961 skb_tail_pointer(skb),
962 RX_URB_SIZE, rtl8192_rx_isr, skb);
964 info = (struct rtl8192_rx_info *)skb->cb;
967 info->out_pipe = out_pipe;
969 urb->transfer_buffer = skb_tail_pointer(skb);
971 skb_queue_tail(&priv->rx_queue, skb);
972 err = usb_submit_urb(urb, GFP_ATOMIC);
973 if (err && err != EPERM)
975 "can not submit rxurb, err is %x, URB status is %x\n",
979 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
980 struct ieee80211_rx_stats *pstats)
984 status = cmpk_message_handle_rx(dev, pstats);
986 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
992 static void rtl8192_data_hard_stop(struct net_device *dev)
998 static void rtl8192_data_hard_resume(struct net_device *dev)
1003 /* this function TX data frames when the ieee80211 stack requires this.
1004 * It checks also if we need to stop the ieee tx queue, eventually do it
1006 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1009 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1011 unsigned long flags;
1012 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1013 u8 queue_index = tcb_desc->queue_index;
1015 /* shall not be referred by command packet */
1016 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
1018 spin_lock_irqsave(&priv->tx_lock, flags);
1020 *(struct net_device **)(skb->cb) = dev;
1021 tcb_desc->bTxEnableFwCalcDur = 1;
1022 skb_push(skb, priv->ieee80211->tx_headroom);
1023 ret = rtl8192_tx(dev, skb);
1025 spin_unlock_irqrestore(&priv->tx_lock, flags);
1028 /* This is a rough attempt to TX a frame
1029 * This is called by the ieee 80211 stack to TX management frames.
1030 * If the ring is full packet are dropped (for data frame the queue
1031 * is stopped before this can happen).
1033 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1035 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1037 unsigned long flags;
1038 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1039 u8 queue_index = tcb_desc->queue_index;
1042 spin_lock_irqsave(&priv->tx_lock, flags);
1044 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1045 if (queue_index == TXCMD_QUEUE) {
1046 skb_push(skb, USB_HWDESC_HEADER_LEN);
1047 rtl819xU_tx_cmd(dev, skb);
1050 skb_push(skb, priv->ieee80211->tx_headroom);
1051 ret = rtl8192_tx(dev, skb);
1054 spin_unlock_irqrestore(&priv->tx_lock, flags);
1059 static void rtl8192_tx_isr(struct urb *tx_urb)
1061 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
1062 struct net_device *dev;
1063 struct r8192_priv *priv = NULL;
1070 dev = *(struct net_device **)(skb->cb);
1071 tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1072 queue_index = tcb_desc->queue_index;
1074 priv = ieee80211_priv(dev);
1076 if (tcb_desc->queue_index != TXCMD_QUEUE) {
1077 if (tx_urb->status == 0) {
1078 netif_trans_update(dev);
1079 priv->stats.txoktotal++;
1080 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
1081 priv->stats.txbytesunicast +=
1082 (skb->len - priv->ieee80211->tx_headroom);
1084 priv->ieee80211->stats.tx_errors++;
1089 /* free skb and tx_urb */
1090 dev_kfree_skb_any(skb);
1091 usb_free_urb(tx_urb);
1092 atomic_dec(&priv->tx_pending[queue_index]);
1096 * We had transfer our beacon frame to host controller at this moment.
1100 * Handling the wait queue of command packets.
1101 * For Tx command packets, we must not do TCB fragment because it is
1102 * not handled right now. We must cut the packets to match the size of
1103 * TX_CMD_PKT before we send it.
1106 /* Handle MPDU in wait queue. */
1107 if (queue_index != BEACON_QUEUE) {
1108 /* Don't send data frame during scanning.*/
1109 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1110 (!(priv->ieee80211->queue_stop))) {
1111 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1113 priv->ieee80211->softmac_hard_start_xmit(skb,
1116 return; /* avoid further processing AMSDU */
1121 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1123 struct r8192_priv *priv = ieee80211_priv(dev);
1124 struct ieee80211_network *net;
1125 u8 i = 0, basic_rate = 0;
1127 net = &priv->ieee80211->current_network;
1129 for (i = 0; i < net->rates_len; i++) {
1130 basic_rate = net->rates[i] & 0x7f;
1131 switch (basic_rate) {
1133 *rate_config |= RRSR_1M;
1136 *rate_config |= RRSR_2M;
1139 *rate_config |= RRSR_5_5M;
1142 *rate_config |= RRSR_11M;
1145 *rate_config |= RRSR_6M;
1148 *rate_config |= RRSR_9M;
1151 *rate_config |= RRSR_12M;
1154 *rate_config |= RRSR_18M;
1157 *rate_config |= RRSR_24M;
1160 *rate_config |= RRSR_36M;
1163 *rate_config |= RRSR_48M;
1166 *rate_config |= RRSR_54M;
1170 for (i = 0; i < net->rates_ex_len; i++) {
1171 basic_rate = net->rates_ex[i] & 0x7f;
1172 switch (basic_rate) {
1174 *rate_config |= RRSR_1M;
1177 *rate_config |= RRSR_2M;
1180 *rate_config |= RRSR_5_5M;
1183 *rate_config |= RRSR_11M;
1186 *rate_config |= RRSR_6M;
1189 *rate_config |= RRSR_9M;
1192 *rate_config |= RRSR_12M;
1195 *rate_config |= RRSR_18M;
1198 *rate_config |= RRSR_24M;
1201 *rate_config |= RRSR_36M;
1204 *rate_config |= RRSR_48M;
1207 *rate_config |= RRSR_54M;
1214 #define SHORT_SLOT_TIME 9
1215 #define NON_SHORT_SLOT_TIME 20
1217 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1220 struct r8192_priv *priv = ieee80211_priv(dev);
1221 struct ieee80211_network *net = &priv->ieee80211->current_network;
1223 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1224 tmp = priv->basic_rate;
1225 if (priv->short_preamble)
1226 tmp |= BRSR_AckShortPmb;
1227 write_nic_dword(dev, RRSR, tmp);
1229 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1232 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1233 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1234 /* short slot time */
1235 slot_time = SHORT_SLOT_TIME;
1236 else /* long slot time */
1237 slot_time = NON_SHORT_SLOT_TIME;
1238 priv->slot_time = slot_time;
1239 write_nic_byte(dev, SLOT_TIME, slot_time);
1243 static void rtl8192_net_update(struct net_device *dev)
1245 struct r8192_priv *priv = ieee80211_priv(dev);
1246 struct ieee80211_network *net;
1247 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1248 u16 rate_config = 0;
1250 net = &priv->ieee80211->current_network;
1252 rtl8192_config_rate(dev, &rate_config);
1253 priv->basic_rate = rate_config & 0x15f;
1255 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1256 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1258 rtl8192_update_msr(dev);
1259 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1260 write_nic_word(dev, ATIMWND, 2);
1261 write_nic_word(dev, BCN_DMATIME, 1023);
1262 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1263 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1264 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1265 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1266 /* TODO: BcnIFS may required to be changed on ASIC */
1267 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1269 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1273 /* temporary hw beacon is not used any more.
1274 * open it when necessary
1276 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1281 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1283 struct r8192_priv *priv = ieee80211_priv(dev);
1286 unsigned int idx_pipe;
1287 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
1288 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1289 u8 queue_index = tcb_desc->queue_index;
1291 atomic_inc(&priv->tx_pending[queue_index]);
1292 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1298 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1299 /* Tx descriptor ought to be set according to the skb->cb */
1300 pdesc->FirstSeg = 1;
1302 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1303 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1305 pdesc->LINIP = tcb_desc->bLastIniPkt;
1307 /*---------------------------------------------------------------------
1308 * Fill up USB_OUT_CONTEXT.
1309 *---------------------------------------------------------------------
1312 usb_fill_bulk_urb(tx_urb, priv->udev,
1313 usb_sndbulkpipe(priv->udev, idx_pipe),
1314 skb->data, skb->len, rtl8192_tx_isr, skb);
1316 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1321 DMESGE("Error TX CMD URB, error %d", status);
1326 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1327 * in TxFwInfo data structure
1328 * 2006.10.30 by Emily
1330 * \param QUEUEID Software Queue
1332 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1334 u8 QueueSelect = 0x0; /* default set to */
1338 QueueSelect = QSLT_BE;
1342 QueueSelect = QSLT_BK;
1346 QueueSelect = QSLT_VO;
1350 QueueSelect = QSLT_VI;
1353 QueueSelect = QSLT_MGNT;
1357 QueueSelect = QSLT_BEACON;
1360 /* TODO: mark other queue selection until we verify it is OK */
1361 /* TODO: Remove Assertions */
1363 QueueSelect = QSLT_CMD;
1366 QueueSelect = QSLT_HIGH;
1371 "TransmitTCB(): Impossible Queue Selection: %d\n",
1378 static u8 MRateToHwRate8190Pci(u8 rate)
1380 u8 ret = DESC90_RATE1M;
1384 ret = DESC90_RATE1M;
1387 ret = DESC90_RATE2M;
1390 ret = DESC90_RATE5_5M;
1393 ret = DESC90_RATE11M;
1396 ret = DESC90_RATE6M;
1399 ret = DESC90_RATE9M;
1402 ret = DESC90_RATE12M;
1405 ret = DESC90_RATE18M;
1408 ret = DESC90_RATE24M;
1411 ret = DESC90_RATE36M;
1414 ret = DESC90_RATE48M;
1417 ret = DESC90_RATE54M;
1420 /* HT rate since here */
1422 ret = DESC90_RATEMCS0;
1425 ret = DESC90_RATEMCS1;
1428 ret = DESC90_RATEMCS2;
1431 ret = DESC90_RATEMCS3;
1434 ret = DESC90_RATEMCS4;
1437 ret = DESC90_RATEMCS5;
1440 ret = DESC90_RATEMCS6;
1443 ret = DESC90_RATEMCS7;
1446 ret = DESC90_RATEMCS8;
1449 ret = DESC90_RATEMCS9;
1452 ret = DESC90_RATEMCS10;
1455 ret = DESC90_RATEMCS11;
1458 ret = DESC90_RATEMCS12;
1461 ret = DESC90_RATEMCS13;
1464 ret = DESC90_RATEMCS14;
1467 ret = DESC90_RATEMCS15;
1470 ret = DESC90_RATEMCS32;
1480 static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
1484 tmp_Short = (TxHT == 1) ?
1485 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1486 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1488 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1494 static void tx_zero_isr(struct urb *tx_urb)
1499 * The tx procedure is just as following,
1500 * skb->cb will contain all the following information,
1501 * priority, morefrag, rate, &dev.
1503 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1505 struct r8192_priv *priv = ieee80211_priv(dev);
1506 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1507 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
1508 tx_fwinfo_819x_usb *tx_fwinfo =
1509 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1510 struct usb_device *udev = priv->udev;
1512 int status, rt = -1;
1513 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1514 unsigned int idx_pipe;
1516 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1517 /* we are locked here so the two atomic_read and inc are executed
1518 * without interleaves
1519 * !!! For debug purpose
1521 if (pend > MAX_TX_URB) {
1522 netdev_dbg(dev, "To discard skb packet!\n");
1523 dev_kfree_skb_any(skb);
1527 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1529 dev_kfree_skb_any(skb);
1533 /* Fill Tx firmware info */
1534 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
1536 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1537 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1538 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1539 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1541 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1542 tx_fwinfo->AllowAggregation = 1;
1544 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1545 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1547 tx_fwinfo->AllowAggregation = 0;
1549 tx_fwinfo->RxMF = 0;
1550 tx_fwinfo->RxAMD = 0;
1553 /* Protection mode related */
1554 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1555 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1556 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1557 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1558 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1559 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1560 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1561 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1562 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1564 /* Set Bandwidth and sub-channel settings. */
1565 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1566 if (tcb_desc->bPacketBW) {
1567 tx_fwinfo->TxBandwidth = 1;
1568 /* use duplicated mode */
1569 tx_fwinfo->TxSubCarrier = 0;
1571 tx_fwinfo->TxBandwidth = 0;
1572 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1575 tx_fwinfo->TxBandwidth = 0;
1576 tx_fwinfo->TxSubCarrier = 0;
1579 /* Fill Tx descriptor */
1580 memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
1583 tx_desc->CmdInit = 1;
1584 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
1585 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1588 tx_desc->SecCAMID = 0;
1589 tx_desc->RATid = tcb_desc->RATRIndex;
1591 tx_desc->SecType = 0x0;
1592 if (tcb_desc->bHwSec) {
1593 switch (priv->ieee80211->pairwise_key_type) {
1594 case KEY_TYPE_WEP40:
1595 case KEY_TYPE_WEP104:
1596 tx_desc->SecType = 0x1;
1600 tx_desc->SecType = 0x2;
1604 tx_desc->SecType = 0x3;
1608 tx_desc->SecType = 0x0;
1614 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1615 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
1617 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1618 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1620 /* Fill fields that are required to be initialized in
1621 * all of the descriptors
1624 tx_desc->FirstSeg = 1;
1625 tx_desc->LastSeg = 1;
1629 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1632 /* To submit bulk urb */
1633 usb_fill_bulk_urb(tx_urb, udev,
1634 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1635 skb->len, rtl8192_tx_isr, skb);
1637 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1639 /* We need to send 0 byte packet whenever
1640 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1641 * been transmitted. Otherwise, it will be halt to wait for
1644 bool bSend0Byte = false;
1647 if (udev->speed == USB_SPEED_HIGH) {
1648 if (skb->len > 0 && skb->len % 512 == 0)
1651 if (skb->len > 0 && skb->len % 64 == 0)
1655 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1660 usb_fill_bulk_urb(tx_urb_zero, udev,
1661 usb_sndbulkpipe(udev, idx_pipe),
1662 &zero, 0, tx_zero_isr, dev);
1663 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1666 "Error TX URB for zero byte %d, error %d",
1667 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1672 netif_trans_update(dev);
1673 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1677 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1678 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1682 dev_kfree_skb_any(skb);
1683 usb_free_urb(tx_urb);
1684 usb_free_urb(tx_urb_zero);
1688 static short rtl8192_usb_initendpoints(struct net_device *dev)
1690 struct r8192_priv *priv = ieee80211_priv(dev);
1692 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
1697 #ifndef JACKSON_NEW_RX
1698 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1699 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1701 priv->rx_urb[i]->transfer_buffer =
1702 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1704 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1708 #ifdef THOMAS_BEACON
1711 void *oldaddr, *newaddr;
1713 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1714 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1717 oldaddr = priv->oldaddr;
1718 align = ((long)oldaddr) & 3;
1720 newaddr = oldaddr + 4 - align;
1721 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1724 priv->rx_urb[16]->transfer_buffer_length = 16;
1726 priv->rx_urb[16]->transfer_buffer = newaddr;
1730 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1731 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1733 if (!priv->pp_rxskb) {
1734 kfree(priv->rx_urb);
1736 priv->pp_rxskb = NULL;
1737 priv->rx_urb = NULL;
1739 DMESGE("Endpoint Alloc Failure");
1743 netdev_dbg(dev, "End of initendpoints\n");
1747 #ifdef THOMAS_BEACON
1748 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1751 struct r8192_priv *priv = ieee80211_priv(dev);
1754 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1755 usb_kill_urb(priv->rx_urb[i]);
1756 usb_free_urb(priv->rx_urb[i]);
1758 kfree(priv->rx_urb);
1759 priv->rx_urb = NULL;
1761 kfree(priv->oldaddr);
1762 priv->oldaddr = NULL;
1764 kfree(priv->pp_rxskb);
1765 priv->pp_rxskb = NULL;
1768 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1771 struct r8192_priv *priv = ieee80211_priv(dev);
1773 #ifndef JACKSON_NEW_RX
1776 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1777 usb_kill_urb(priv->rx_urb[i]);
1778 kfree(priv->rx_urb[i]->transfer_buffer);
1779 usb_free_urb(priv->rx_urb[i]);
1781 kfree(priv->rx_urb);
1782 priv->rx_urb = NULL;
1785 kfree(priv->rx_urb);
1786 priv->rx_urb = NULL;
1787 kfree(priv->oldaddr);
1788 priv->oldaddr = NULL;
1790 kfree(priv->pp_rxskb);
1797 static void rtl8192_update_ratr_table(struct net_device *dev);
1798 static void rtl8192_link_change(struct net_device *dev)
1800 struct r8192_priv *priv = ieee80211_priv(dev);
1801 struct ieee80211_device *ieee = priv->ieee80211;
1803 if (ieee->state == IEEE80211_LINKED) {
1804 rtl8192_net_update(dev);
1805 rtl8192_update_ratr_table(dev);
1806 /* Add this as in pure N mode, wep encryption will use software
1807 * way, but there is no chance to set this as wep will not set
1808 * group key in wext.
1810 if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
1811 KEY_TYPE_WEP104 == ieee->pairwise_key_type)
1812 EnableHWSecurityConfig8192(dev);
1814 /*update timing params*/
1815 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1818 read_nic_dword(dev, RCR, ®);
1819 if (priv->ieee80211->state == IEEE80211_LINKED)
1820 priv->ReceiveConfig = reg |= RCR_CBSSID;
1822 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1823 write_nic_dword(dev, RCR, reg);
1827 static struct ieee80211_qos_parameters def_qos_parameters = {
1828 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1829 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1830 {2, 2, 2, 2},/* aifs */
1831 {0, 0, 0, 0},/* flags */
1832 {0, 0, 0, 0} /* tx_op_limit */
1836 static void rtl8192_update_beacon(struct work_struct *work)
1838 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1839 update_beacon_wq.work);
1840 struct net_device *dev = priv->ieee80211->dev;
1841 struct ieee80211_device *ieee = priv->ieee80211;
1842 struct ieee80211_network *net = &ieee->current_network;
1844 if (ieee->pHTInfo->bCurrentHTSupport)
1845 HTUpdateSelfAndPeerSetting(ieee, net);
1846 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1847 net->bssht.bdRT2RTLongSlotTime;
1848 rtl8192_update_cap(dev, net->capability);
1852 * background support to run QoS activate functionality
1854 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1855 EDCAPARA_VI, EDCAPARA_VO};
1856 static void rtl8192_qos_activate(struct work_struct *work)
1858 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1860 struct net_device *dev = priv->ieee80211->dev;
1861 struct ieee80211_qos_parameters *qos_parameters =
1862 &priv->ieee80211->current_network.qos_data.parameters;
1863 u8 mode = priv->ieee80211->current_network.mode;
1871 mutex_lock(&priv->mutex);
1872 if (priv->ieee80211->state != IEEE80211_LINKED)
1875 "qos active process with associate response received\n");
1876 /* It better set slot time at first
1878 * For we just support b/g mode at present, let the slot time at
1881 * update the ac parameter to related registers
1883 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1884 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1885 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1886 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1887 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1888 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1889 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1890 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1891 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1892 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1893 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1894 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1898 mutex_unlock(&priv->mutex);
1901 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1903 struct ieee80211_network *network)
1906 u32 size = sizeof(struct ieee80211_qos_parameters);
1908 if (priv->ieee80211->state != IEEE80211_LINKED)
1911 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1914 if (network->flags & NETWORK_HAS_QOS_MASK) {
1915 if (active_network &&
1916 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1917 network->qos_data.active = network->qos_data.supported;
1919 if ((network->qos_data.active == 1) && (active_network == 1) &&
1920 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1921 (network->qos_data.old_param_count !=
1922 network->qos_data.param_count)) {
1923 network->qos_data.old_param_count =
1924 network->qos_data.param_count;
1925 schedule_work(&priv->qos_activate);
1927 "QoS parameters change call qos_activate\n");
1930 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1931 &def_qos_parameters, size);
1933 if ((network->qos_data.active == 1) && (active_network == 1)) {
1934 schedule_work(&priv->qos_activate);
1936 "QoS was disabled call qos_activate\n");
1938 network->qos_data.active = 0;
1939 network->qos_data.supported = 0;
1945 /* handle and manage frame from beacon and probe response */
1946 static int rtl8192_handle_beacon(struct net_device *dev,
1947 struct ieee80211_beacon *beacon,
1948 struct ieee80211_network *network)
1950 struct r8192_priv *priv = ieee80211_priv(dev);
1952 rtl8192_qos_handle_probe_response(priv, 1, network);
1953 schedule_delayed_work(&priv->update_beacon_wq, 0);
1958 * handling the beaconing responses. if we get different QoS setting
1959 * off the network from the associated setting, adjust the QoS
1962 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1963 struct ieee80211_network *network)
1965 unsigned long flags;
1966 u32 size = sizeof(struct ieee80211_qos_parameters);
1967 int set_qos_param = 0;
1969 if (!priv || !network)
1972 if (priv->ieee80211->state != IEEE80211_LINKED)
1975 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1978 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1979 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1980 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1981 &network->qos_data.parameters,
1982 sizeof(struct ieee80211_qos_parameters));
1983 priv->ieee80211->current_network.qos_data.active = 1;
1985 /* update qos parameter for current network */
1986 priv->ieee80211->current_network.qos_data.old_param_count =
1987 priv->ieee80211->current_network.qos_data.param_count;
1988 priv->ieee80211->current_network.qos_data.param_count =
1989 network->qos_data.param_count;
1991 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1992 &def_qos_parameters, size);
1993 priv->ieee80211->current_network.qos_data.active = 0;
1994 priv->ieee80211->current_network.qos_data.supported = 0;
1998 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
2000 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
2002 priv->ieee80211->current_network.qos_data.active);
2003 if (set_qos_param == 1)
2004 schedule_work(&priv->qos_activate);
2011 static int rtl8192_handle_assoc_response(
2012 struct net_device *dev,
2013 struct ieee80211_assoc_response_frame *resp,
2014 struct ieee80211_network *network)
2016 struct r8192_priv *priv = ieee80211_priv(dev);
2018 rtl8192_qos_association_resp(priv, network);
2023 static void rtl8192_update_ratr_table(struct net_device *dev)
2025 struct r8192_priv *priv = ieee80211_priv(dev);
2026 struct ieee80211_device *ieee = priv->ieee80211;
2027 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2031 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2032 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2033 switch (ieee->mode) {
2035 ratr_value &= 0x00000FF0;
2038 ratr_value &= 0x0000000F;
2041 ratr_value &= 0x00000FF7;
2045 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2046 ratr_value &= 0x0007F007;
2048 if (priv->rf_type == RF_1T2R)
2049 ratr_value &= 0x000FF007;
2051 ratr_value &= 0x0F81F007;
2057 ratr_value &= 0x0FFFFFFF;
2058 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2059 ratr_value |= 0x80000000;
2060 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2061 ieee->pHTInfo->bCurShortGI20MHz)
2062 ratr_value |= 0x80000000;
2063 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2064 write_nic_byte(dev, UFWP, 1);
2067 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2068 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
2069 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2071 struct r8192_priv *priv = ieee80211_priv(dev);
2072 struct ieee80211_device *ieee = priv->ieee80211;
2073 struct ieee80211_network *network = &ieee->current_network;
2074 int wpa_ie_len = ieee->wpa_ie_len;
2075 struct ieee80211_crypt_data *crypt;
2078 crypt = ieee->crypt[ieee->tx_keyidx];
2079 /* we use connecting AP's capability instead of only security config
2080 * on our driver to distinguish whether it should use N mode or G mode
2082 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2083 (ieee->host_encrypt && crypt && crypt->ops &&
2084 (0 == strcmp(crypt->ops->name, "WEP")));
2087 if (encrypt && (wpa_ie_len == 0)) {
2088 /* wep encryption, no N mode setting */
2090 } else if ((wpa_ie_len != 0)) {
2091 /* parse pairwise key type */
2092 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))))
2103 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2105 struct r8192_priv *priv = ieee80211_priv(dev);
2107 return priv->ieee80211->bHalfWirelessN24GMode;
2110 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2112 struct ieee80211_device *ieee = priv->ieee80211;
2113 /* We do not consider set support rate for ABG mode, only
2114 * HT MCS rate is set here.
2116 if (ieee->mode == WIRELESS_MODE_N_24G ||
2117 ieee->mode == WIRELESS_MODE_N_5G)
2118 memcpy(ieee->Regdot11HTOperationalRateSet,
2119 ieee->RegHTSuppRateSet, 16);
2121 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2124 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2126 struct r8192_priv *priv = ieee80211_priv(dev);
2129 switch (priv->rf_chip) {
2133 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2136 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2139 ret = WIRELESS_MODE_B;
2145 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2147 struct r8192_priv *priv = ieee80211_priv(dev);
2148 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2150 if (wireless_mode == WIRELESS_MODE_AUTO ||
2151 (wireless_mode & bSupportMode) == 0) {
2152 if (bSupportMode & WIRELESS_MODE_N_24G) {
2153 wireless_mode = WIRELESS_MODE_N_24G;
2154 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2155 wireless_mode = WIRELESS_MODE_N_5G;
2156 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2157 wireless_mode = WIRELESS_MODE_A;
2158 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2159 wireless_mode = WIRELESS_MODE_G;
2160 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2161 wireless_mode = WIRELESS_MODE_B;
2164 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2165 __func__, bSupportMode);
2166 wireless_mode = WIRELESS_MODE_B;
2170 /* TODO: this function doesn't work well at this time,
2171 * we should wait for FPGA
2173 ActUpdateChannelAccessSetting(
2174 pAdapter, pHalData->CurrentWirelessMode,
2175 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2177 priv->ieee80211->mode = wireless_mode;
2179 if (wireless_mode == WIRELESS_MODE_N_24G ||
2180 wireless_mode == WIRELESS_MODE_N_5G)
2181 priv->ieee80211->pHTInfo->bEnableHT = 1;
2183 priv->ieee80211->pHTInfo->bEnableHT = 0;
2184 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2185 rtl8192_refresh_supportrate(priv);
2188 /* init priv variables here. only non_zero value should be initialized here. */
2189 static void rtl8192_init_priv_variable(struct net_device *dev)
2191 struct r8192_priv *priv = ieee80211_priv(dev);
2194 priv->card_8192 = NIC_8192U;
2195 priv->chan = 1; /* set to channel 1 */
2196 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2197 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2198 priv->ieee80211->ieee_up = 0;
2199 priv->retry_rts = DEFAULT_RETRY_RTS;
2200 priv->retry_data = DEFAULT_RETRY_DATA;
2201 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2202 priv->ieee80211->rate = 110; /* 11 mbps */
2203 priv->ieee80211->short_slot = 1;
2204 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2206 /* for silent reset */
2207 priv->IrpPendingCount = 1;
2208 priv->ResetProgress = RESET_TYPE_NORESET;
2209 priv->bForcedSilentReset = false;
2210 priv->bDisableNormalResetCheck = false;
2211 priv->force_reset = false;
2213 /* we don't use FW read/write RF until stable firmware is available. */
2214 priv->ieee80211->FwRWRF = 0;
2215 priv->ieee80211->current_network.beacon_interval =
2216 DEFAULT_BEACONINTERVAL;
2217 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2218 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2219 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2220 IEEE_SOFTMAC_BEACONS;
2222 priv->ieee80211->active_scan = 1;
2223 priv->ieee80211->modulation =
2224 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2225 priv->ieee80211->host_encrypt = 1;
2226 priv->ieee80211->host_decrypt = 1;
2227 priv->ieee80211->start_send_beacons = NULL;
2228 priv->ieee80211->stop_send_beacons = NULL;
2229 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2230 priv->ieee80211->set_chan = rtl8192_set_chan;
2231 priv->ieee80211->link_change = rtl8192_link_change;
2232 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2233 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2234 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2235 priv->ieee80211->init_wmmparam_flag = 0;
2236 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2237 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2238 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2239 priv->ieee80211->qos_support = 1;
2241 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2242 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2243 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2245 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2246 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2247 GetHalfNmodeSupportByAPs819xUsb;
2248 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2250 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2251 priv->card_type = USB;
2253 if (Adapter->bInHctTest) {
2254 pHalData->ShortRetryLimit = 7;
2255 pHalData->LongRetryLimit = 7;
2258 priv->ShortRetryLimit = 0x30;
2259 priv->LongRetryLimit = 0x30;
2260 priv->EarlyRxThreshold = 7;
2261 priv->enable_gpio0 = 0;
2262 priv->TransmitConfig =
2263 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2264 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2265 /* Short retry limit */
2266 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2267 /* Long retry limit */
2268 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2269 /* FALSE: HW provides PLCP length and LENGEXT
2270 * TRUE: SW provides them
2272 (false ? TCR_SAT : 0);
2274 if (Adapter->bInHctTest)
2275 pHalData->ReceiveConfig =
2276 pHalData->CSMethod |
2277 /* accept management/data */
2279 /* accept control frame for SW
2283 /* accept BC/MC/UC */
2284 RCR_AB | RCR_AM | RCR_APM |
2285 /* accept ICV/CRC error
2288 RCR_AICV | RCR_ACRC32 |
2289 /* Max DMA Burst Size per Tx
2290 * DMA Burst, 7: unlimited.
2292 ((u32)7 << RCR_MXDMA_OFFSET) |
2293 /* Rx FIFO Threshold,
2294 * 7: No Rx threshold.
2296 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2297 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2301 priv->ReceiveConfig =
2302 /* accept management/data */
2304 /* accept control frame for SW AP needs PS-poll */
2306 /* accept BC/MC/UC */
2307 RCR_AB | RCR_AM | RCR_APM |
2308 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2309 ((u32)7 << RCR_MXDMA_OFFSET) |
2310 /* Rx FIFO Threshold, 7: No Rx threshold. */
2311 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2312 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2314 priv->AcmControl = 0;
2315 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2317 /* rx related queue */
2318 skb_queue_head_init(&priv->rx_queue);
2319 skb_queue_head_init(&priv->skb_queue);
2321 /* Tx related queue */
2322 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2323 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2324 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2325 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2326 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2327 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2328 priv->rf_set_chan = rtl8192_phy_SwChnl;
2331 /* init lock here */
2332 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2334 spin_lock_init(&priv->tx_lock);
2335 spin_lock_init(&priv->irq_lock);
2336 mutex_init(&priv->wx_mutex);
2337 mutex_init(&priv->mutex);
2340 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2342 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2343 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2344 #define DRV_NAME "wlan0"
2345 static void rtl8192_init_priv_task(struct net_device *dev)
2347 struct r8192_priv *priv = ieee80211_priv(dev);
2350 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2352 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2353 rtl819x_watchdog_wqcallback);
2354 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2355 dm_txpower_trackingcallback);
2356 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2357 dm_rf_pathcheck_workitemcallback);
2358 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2359 rtl8192_update_beacon);
2360 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2361 InitialGainOperateWorkItemCallBack);
2362 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2364 tasklet_init(&priv->irq_rx_tasklet,
2365 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2366 (unsigned long)priv);
2369 static void rtl8192_get_eeprom_size(struct net_device *dev)
2372 struct r8192_priv *priv = ieee80211_priv(dev);
2374 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2375 read_nic_word_E(dev, EPROM_CMD, &curCR);
2376 RT_TRACE(COMP_EPROM,
2377 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2378 /* whether need I consider BIT(5?) */
2380 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2381 RT_TRACE(COMP_EPROM,
2382 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2385 /* used to swap endian. as ntohl & htonl are not necessary
2386 * to swap endian, so use this instead.
2388 static inline u16 endian_swap(u16 *data)
2391 *data = (tmp >> 8) | (tmp << 8);
2395 static int rtl8192_read_eeprom_info(struct net_device *dev)
2398 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2399 u8 bLoad_From_EEPOM = false;
2400 struct r8192_priv *priv = ieee80211_priv(dev);
2405 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2406 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2409 wEPROM_ID = (u16)ret;
2410 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2412 if (wEPROM_ID != RTL8190_EEPROM_ID)
2414 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2415 wEPROM_ID, RTL8190_EEPROM_ID);
2417 bLoad_From_EEPOM = true;
2419 if (bLoad_From_EEPOM) {
2420 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2421 ret = eprom_read(dev, EEPROM_VID >> 1);
2424 tmpValue = (u16)ret;
2425 priv->eeprom_vid = endian_swap(&tmpValue);
2426 ret = eprom_read(dev, EEPROM_PID >> 1);
2429 priv->eeprom_pid = (u16)ret;
2430 ret = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2433 tmpValue = (u16)ret;
2434 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2435 priv->btxpowerdata_readfromEEPORM = true;
2436 ret = eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2439 priv->eeprom_CustomerID = (u16)ret;
2441 priv->eeprom_vid = 0;
2442 priv->eeprom_pid = 0;
2443 priv->card_8192_version = VERSION_819xU_B;
2444 priv->eeprom_ChannelPlan = 0;
2445 priv->eeprom_CustomerID = 0;
2447 RT_TRACE(COMP_EPROM,
2448 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2449 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2450 priv->eeprom_ChannelPlan);
2451 /* set channelplan from eeprom */
2452 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2453 if (bLoad_From_EEPOM) {
2456 for (i = 0; i < 6; i += 2) {
2457 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2460 *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2463 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2464 /* should I set IDR0 here? */
2466 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2467 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2468 priv->rf_chip = RF_8256;
2470 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2471 /* read Tx power gain offset of legacy OFDM to HT rate */
2472 if (bLoad_From_EEPOM) {
2473 ret = eprom_read(dev, (EEPROM_TxPowerDiff >> 1));
2476 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2478 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2479 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2480 /* read ThermalMeter from EEPROM */
2481 if (bLoad_From_EEPOM) {
2482 ret = eprom_read(dev, (EEPROM_ThermalMeter >> 1));
2485 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2487 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2488 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2489 /* for tx power track */
2490 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2491 /* read antenna tx power offset of B/C/D to A from EEPROM */
2492 if (bLoad_From_EEPOM) {
2493 ret = eprom_read(dev, (EEPROM_PwDiff >> 1));
2496 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2498 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2499 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2500 /* Read CrystalCap from EEPROM */
2501 if (bLoad_From_EEPOM) {
2502 ret = eprom_read(dev, (EEPROM_CrystalCap >> 1));
2505 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2507 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2508 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2509 /* get per-channel Tx power level */
2510 if (bLoad_From_EEPOM) {
2511 ret = eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1));
2514 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2516 priv->EEPROM_Def_Ver = 1;
2517 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2518 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2521 if (bLoad_From_EEPOM) {
2522 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1));
2525 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8;
2527 priv->EEPROMTxPowerLevelCCK = 0x10;
2528 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2529 for (i = 0; i < 3; i++) {
2530 if (bLoad_From_EEPOM) {
2531 ret = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2534 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2535 tmpValue = (u16)ret & 0x00ff;
2537 tmpValue = ((u16)ret & 0xff00) >> 8;
2541 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2542 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2544 } else if (priv->EEPROM_Def_Ver == 1) {
2545 if (bLoad_From_EEPOM) {
2546 ret = eprom_read(dev, EEPROM_TxPwIndex_CCK_V1 >> 1);
2549 tmpValue = ((u16)ret & 0xff00) >> 8;
2553 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2555 if (bLoad_From_EEPOM) {
2556 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2559 tmpValue = (u16)ret;
2562 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2563 if (bLoad_From_EEPOM)
2564 tmpValue = eprom_read(dev,
2565 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2568 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2569 if (bLoad_From_EEPOM)
2570 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2573 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2574 } /* endif EEPROM_Def_Ver == 1 */
2576 /* update HAL variables */
2577 for (i = 0; i < 14; i++) {
2579 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2580 else if (i >= 4 && i <= 9)
2581 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2583 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2586 for (i = 0; i < 14; i++) {
2587 if (priv->EEPROM_Def_Ver == 0) {
2589 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2590 else if (i >= 4 && i <= 9)
2591 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2593 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2594 } else if (priv->EEPROM_Def_Ver == 1) {
2596 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2597 else if (i >= 4 && i <= 9)
2598 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2600 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2603 priv->TxPowerDiff = priv->EEPROMPwDiff;
2604 /* Antenna B gain offset to antenna A, bit0~3 */
2605 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2606 /* Antenna C gain offset to antenna A, bit4~7 */
2607 priv->AntennaTxPwDiff[1] =
2608 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2609 /* CrystalCap, bit12~15 */
2610 priv->CrystalCap = priv->EEPROMCrystalCap;
2611 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2612 * 92U does not enable TX power tracking.
2614 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2615 } /* end if VersionID == VERSION_819xU_A */
2618 switch (priv->eeprom_CustomerID) {
2619 case EEPROM_CID_RUNTOP:
2620 priv->CustomerID = RT_CID_819x_RUNTOP;
2623 case EEPROM_CID_DLINK:
2624 priv->CustomerID = RT_CID_DLINK;
2628 priv->CustomerID = RT_CID_DEFAULT;
2632 switch (priv->CustomerID) {
2633 case RT_CID_819x_RUNTOP:
2634 priv->LedStrategy = SW_LED_MODE2;
2638 priv->LedStrategy = SW_LED_MODE4;
2642 priv->LedStrategy = SW_LED_MODE0;
2647 if (priv->rf_type == RF_1T2R)
2648 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2650 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2652 /* We can only know RF type in the function. So we have to init
2653 * DIG RATR table again.
2655 init_rate_adaptive(dev);
2657 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2662 static short rtl8192_get_channel_map(struct net_device *dev)
2664 struct r8192_priv *priv = ieee80211_priv(dev);
2666 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2668 "rtl8180_init: Error channel plan! Set to default.\n");
2669 priv->ChannelPlan = 0;
2671 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2673 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2677 static short rtl8192_init(struct net_device *dev)
2679 struct r8192_priv *priv = ieee80211_priv(dev);
2682 memset(&(priv->stats), 0, sizeof(struct Stats));
2683 memset(priv->txqueue_to_outpipemap, 0, 9);
2687 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2689 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2693 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2695 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2698 rtl8192_init_priv_variable(dev);
2699 rtl8192_init_priv_lock(priv);
2700 rtl8192_init_priv_task(dev);
2701 rtl8192_get_eeprom_size(dev);
2702 err = rtl8192_read_eeprom_info(dev);
2704 DMESG("Reading EEPROM info failed");
2705 kfree(priv->pFirmware);
2706 priv->pFirmware = NULL;
2707 free_ieee80211(dev);
2710 rtl8192_get_channel_map(dev);
2712 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2713 (unsigned long)dev);
2714 if (rtl8192_usb_initendpoints(dev) != 0) {
2715 DMESG("Endopoints initialization failed");
2722 /******************************************************************************
2723 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2724 * not to do all the hw config as its name says
2725 * input: net_device dev
2728 * notice: This part need to modified according to the rate set we filtered
2729 * ****************************************************************************/
2730 static void rtl8192_hwconfig(struct net_device *dev)
2732 u32 regRATR = 0, regRRSR = 0;
2733 u8 regBwOpMode = 0, regTmp = 0;
2734 struct r8192_priv *priv = ieee80211_priv(dev);
2737 /* Set RRSR, RATR, and BW_OPMODE registers */
2738 switch (priv->ieee80211->mode) {
2739 case WIRELESS_MODE_B:
2740 regBwOpMode = BW_OPMODE_20MHZ;
2741 regRATR = RATE_ALL_CCK;
2742 regRRSR = RATE_ALL_CCK;
2744 case WIRELESS_MODE_A:
2745 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2746 regRATR = RATE_ALL_OFDM_AG;
2747 regRRSR = RATE_ALL_OFDM_AG;
2749 case WIRELESS_MODE_G:
2750 regBwOpMode = BW_OPMODE_20MHZ;
2751 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2752 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2754 case WIRELESS_MODE_AUTO:
2756 if (Adapter->bInHctTest) {
2757 regBwOpMode = BW_OPMODE_20MHZ;
2758 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2759 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
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;
2769 case WIRELESS_MODE_N_24G:
2770 /* It support CCK rate by default. CCK rate will be filtered
2771 * out only when associated AP does not support it.
2773 regBwOpMode = BW_OPMODE_20MHZ;
2774 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2775 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2776 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2778 case WIRELESS_MODE_N_5G:
2779 regBwOpMode = BW_OPMODE_5G;
2780 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2782 regRRSR = RATE_ALL_OFDM_AG;
2786 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2787 ratr_value = regRATR;
2788 if (priv->rf_type == RF_1T2R)
2789 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2790 write_nic_dword(dev, RATR0, ratr_value);
2791 write_nic_byte(dev, UFWP, 1);
2792 read_nic_byte(dev, 0x313, ®Tmp);
2793 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2794 write_nic_dword(dev, RRSR, regRRSR);
2796 /* Set Retry Limit here */
2797 write_nic_word(dev, RETRY_LIMIT,
2798 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2799 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2800 /* Set Contention Window here */
2804 /* Set Tx Antenna including Feedback control */
2806 /* Set Auto Rate fallback control */
2810 /* InitializeAdapter and PhyCfg */
2811 static bool rtl8192_adapter_start(struct net_device *dev)
2813 struct r8192_priv *priv = ieee80211_priv(dev);
2815 bool init_status = true;
2816 u8 SECR_value = 0x0;
2819 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2820 priv->Rf_Mode = RF_OP_By_SW_3wire;
2821 /* for ASIC power on sequence */
2822 write_nic_byte_E(dev, 0x5f, 0x80);
2824 write_nic_byte_E(dev, 0x5f, 0xf0);
2825 write_nic_byte_E(dev, 0x5d, 0x00);
2826 write_nic_byte_E(dev, 0x5e, 0x80);
2827 write_nic_byte(dev, 0x17, 0x37);
2829 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2830 /* config CPUReset Register */
2831 /* Firmware Reset or not? */
2832 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2833 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2834 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2835 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2836 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2839 "ERROR in %s(): undefined firmware state(%d)\n",
2840 __func__, priv->pFirmware->firmware_status);
2842 write_nic_dword(dev, CPU_GEN, dwRegRead);
2844 rtl8192_BBConfig(dev);
2846 /* Loopback mode or not */
2847 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2849 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2850 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2851 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2852 CPU_GEN_NO_LOOPBACK_SET;
2853 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2854 dwRegRead |= CPU_CCK_LOOPBACK;
2857 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2858 __func__, priv->LoopbackMode);
2860 write_nic_dword(dev, CPU_GEN, dwRegRead);
2862 /* after reset cpu, we need wait for a seconds to write in register. */
2865 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2866 read_nic_byte_E(dev, 0x5f, &tmp);
2867 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2870 rtl8192_hwconfig(dev);
2873 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2876 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2877 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2880 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2882 /* Initialize Number of Reserved Pages in Firmware Queue */
2883 write_nic_dword(dev, RQPN1,
2884 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2885 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2886 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2887 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2888 write_nic_dword(dev, RQPN2,
2889 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2890 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2891 write_nic_dword(dev, RQPN3,
2892 APPLIED_RESERVED_QUEUE_IN_FW |
2893 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2894 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2896 /* Set AckTimeout */
2897 /* TODO: (it value is only for FPGA version). need to be changed!! */
2898 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2900 if (priv->ResetProgress == RESET_TYPE_NORESET)
2901 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2902 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2903 CamResetAllEntry(dev);
2904 SECR_value |= SCR_TxEncEnable;
2905 SECR_value |= SCR_RxDecEnable;
2906 SECR_value |= SCR_NoSKMC;
2907 write_nic_byte(dev, SECR, SECR_value);
2910 /* Beacon related */
2911 write_nic_word(dev, ATIMWND, 2);
2912 write_nic_word(dev, BCN_INTERVAL, 100);
2914 #define DEFAULT_EDCA 0x005e4332
2918 for (i = 0; i < QOS_QUEUE_NUM; i++)
2919 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2922 rtl8192_phy_configmac(dev);
2924 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2925 rtl8192_phy_getTxPower(dev);
2926 rtl8192_phy_setTxPower(dev, priv->chan);
2929 /* Firmware download */
2930 init_status = init_firmware(dev);
2932 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2936 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2939 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2940 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2941 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2942 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2943 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2944 /* Those actions will be discard in MgntActSet_RF_State
2945 * because of the same state
2947 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2948 PHY_SetRFReg(Adapter,
2949 (RF90_RADIO_PATH_E)eRFPath,
2951 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2952 /* H/W or S/W RF OFF before sleep. */
2953 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2954 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2955 pMgntInfo->RfOffReason));
2956 MgntActSet_RF_State(Adapter,
2958 pMgntInfo->RfOffReason);
2960 pHalData->eRFPowerState = eRfOn;
2961 pMgntInfo->RfOffReason = 0;
2962 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2963 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2966 if (pHalData->eRFPowerState == eRfOff) {
2967 MgntActSet_RF_State(Adapter,
2969 pMgntInfo->RfOffReason);
2970 /* Those actions will be discard in MgntActSet_RF_State
2971 * because of the same state
2973 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2974 PHY_SetRFReg(Adapter,
2975 (RF90_RADIO_PATH_E)eRFPath,
2981 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2982 rtl8192_phy_RFConfig(dev);
2983 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2987 if (priv->ieee80211->FwRWRF)
2988 /* We can force firmware to do RF-R/W */
2989 priv->Rf_Mode = RF_OP_By_FW;
2991 priv->Rf_Mode = RF_OP_By_SW_3wire;
2994 rtl8192_phy_updateInitGain(dev);
2995 /*--set CCK and OFDM Block "ON"--*/
2996 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2997 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2999 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3003 read_nic_byte(dev, 0x301, &tmpvalue);
3004 if (tmpvalue == 0x03) {
3006 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
3008 priv->bDcut = false;
3009 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
3011 dm_initialize_txpower_tracking(dev);
3015 u32 tmpRegA = rtl8192_QueryBBReg(dev,
3016 rOFDM0_XATxIQImbalance,
3019 for (i = 0; i < TxBBGainTableLength; i++) {
3020 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
3021 priv->rfa_txpowertrackingindex = (u8)i;
3022 priv->rfa_txpowertrackingindex_real =
3024 priv->rfa_txpowertracking_default =
3025 priv->rfa_txpowertrackingindex;
3030 TempCCk = rtl8192_QueryBBReg(dev,
3034 for (i = 0; i < CCKTxBBGainTableLength; i++) {
3035 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
3036 priv->cck_present_attentuation_20Mdefault = (u8)i;
3040 priv->cck_present_attentuation_40Mdefault = 0;
3041 priv->cck_present_attentuation_difference = 0;
3042 priv->cck_present_attentuation =
3043 priv->cck_present_attentuation_20Mdefault;
3046 write_nic_byte(dev, 0x87, 0x0);
3052 /* this configures registers for beacon tx and enables it via
3053 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
3054 * be used to stop beacon transmission
3056 /***************************************************************************
3057 -------------------------------NET STUFF---------------------------
3058 ***************************************************************************/
3060 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3062 struct r8192_priv *priv = ieee80211_priv(dev);
3064 return &priv->ieee80211->stats;
3067 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3069 struct r8192_priv *priv = ieee80211_priv(dev);
3071 bool bStuck = false;
3073 read_nic_word(dev, 0x128, &RegTxCounter);
3074 RT_TRACE(COMP_RESET,
3075 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3076 RegTxCounter, priv->TxCounter);
3077 if (priv->TxCounter == RegTxCounter)
3080 priv->TxCounter = RegTxCounter;
3086 * <Assumption: RT_TX_SPINLOCK is acquired.>
3087 * First added: 2006.11.19 by emily
3089 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3091 struct r8192_priv *priv = ieee80211_priv(dev);
3093 bool bCheckFwTxCnt = false;
3095 /* Decide such threshold according to current power save mode */
3097 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3098 if (QueueID == TXCMD_QUEUE)
3100 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3103 bCheckFwTxCnt = true;
3105 if (bCheckFwTxCnt) {
3106 if (HalTxCheckStuck819xUsb(dev)) {
3107 RT_TRACE(COMP_RESET,
3108 "TxCheckStuck(): Fw indicates no Tx condition!\n");
3109 return RESET_TYPE_SILENT;
3112 return RESET_TYPE_NORESET;
3115 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3118 struct r8192_priv *priv = ieee80211_priv(dev);
3119 bool bStuck = false;
3120 static u8 rx_chk_cnt;
3122 read_nic_word(dev, 0x130, &RegRxCounter);
3123 RT_TRACE(COMP_RESET,
3124 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3125 RegRxCounter, priv->RxCounter);
3126 /* If rssi is small, we should check rx for long time because of bad rx.
3127 * or maybe it will continuous silent reset every 2 seconds.
3130 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3131 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3132 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3133 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3134 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3139 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3140 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3141 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3153 if (priv->RxCounter == RegRxCounter)
3156 priv->RxCounter = RegRxCounter;
3161 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3163 struct r8192_priv *priv = ieee80211_priv(dev);
3164 bool bRxCheck = false;
3166 if (priv->IrpPendingCount > 1)
3170 if (HalRxCheckStuck819xUsb(dev)) {
3171 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3172 return RESET_TYPE_SILENT;
3175 return RESET_TYPE_NORESET;
3180 * This function is called by Checkforhang to check whether we should
3181 * ask OS to reset driver
3183 * \param pAdapter The adapter context for this miniport
3185 * Note:NIC with USB interface sholud not call this function because we
3186 * cannot scan descriptor to judge whether there is tx stuck.
3187 * Note: This function may be required to be rewrite for Vista OS.
3188 * <<<Assumption: Tx spinlock has been acquired >>>
3190 * 8185 and 8185b does not implement this function.
3192 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3194 struct r8192_priv *priv = ieee80211_priv(dev);
3195 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3196 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3197 RT_RF_POWER_STATE rfState;
3199 rfState = priv->ieee80211->eRFPowerState;
3201 TxResetType = TxCheckStuck(dev);
3202 if (rfState != eRfOff ||
3203 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3204 /* If driver is in the status of firmware download failure,
3205 * driver skips RF initialization and RF is in turned off
3206 * state. Driver should check whether Rx stuck and do silent
3207 * reset. And if driver is in firmware download failure status,
3208 * driver should initialize RF in the following silent reset
3211 * Driver should not check RX stuck in IBSS mode because it is
3212 * required to set Check BSSID in order to send beacon,
3213 * however, if check BSSID is set, STA cannot hear any packet
3216 RxResetType = RxCheckStuck(dev);
3218 if (TxResetType == RESET_TYPE_NORMAL ||
3219 RxResetType == RESET_TYPE_NORMAL) {
3220 return RESET_TYPE_NORMAL;
3221 } else if (TxResetType == RESET_TYPE_SILENT ||
3222 RxResetType == RESET_TYPE_SILENT) {
3223 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3224 return RESET_TYPE_SILENT;
3226 return RESET_TYPE_NORESET;
3230 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3231 static int _rtl8192_up(struct net_device *dev);
3232 static int rtl8192_close(struct net_device *dev);
3236 static void CamRestoreAllEntry(struct net_device *dev)
3239 struct r8192_priv *priv = ieee80211_priv(dev);
3240 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3242 static u8 CAM_CONST_ADDR[4][6] = {
3243 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3244 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3245 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3246 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3247 static u8 CAM_CONST_BROAD[] = {
3248 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3250 RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
3253 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3254 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3255 for (EntryId = 0; EntryId < 4; EntryId++) {
3256 MacAddr = CAM_CONST_ADDR[EntryId];
3257 setKey(dev, EntryId, EntryId,
3258 priv->ieee80211->pairwise_key_type,
3262 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3263 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3264 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3265 (u8 *)dev->dev_addr, 0, NULL);
3267 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3269 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3270 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3271 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3272 (u8 *)dev->dev_addr, 0, NULL);
3274 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3280 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3281 MacAddr = CAM_CONST_BROAD;
3282 for (EntryId = 1; EntryId < 4; EntryId++) {
3283 setKey(dev, EntryId, EntryId,
3284 priv->ieee80211->group_key_type,
3287 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3288 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3289 CAM_CONST_ADDR[0], 0, NULL);
3290 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3291 MacAddr = CAM_CONST_BROAD;
3292 for (EntryId = 1; EntryId < 4; EntryId++) {
3293 setKey(dev, EntryId, EntryId,
3294 priv->ieee80211->group_key_type,
3298 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3299 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3300 CAM_CONST_ADDR[0], 0, NULL);
3304 /* This function is used to fix Tx/Rx stop bug temporarily.
3305 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3306 * The method checking Tx/Rx stuck of this function is supported by FW,
3307 * which reports Tx and Rx counter to register 0x128 and 0x130.
3309 static void rtl819x_ifsilentreset(struct net_device *dev)
3311 struct r8192_priv *priv = ieee80211_priv(dev);
3313 int reset_status = 0;
3314 struct ieee80211_device *ieee = priv->ieee80211;
3317 /* If we need to check CCK stop, please uncomment this line. */
3318 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3320 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3323 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3325 /* Set the variable for reset. */
3326 priv->ResetProgress = RESET_TYPE_SILENT;
3327 mutex_lock(&priv->wx_mutex);
3328 if (priv->up == 0) {
3330 "%s():the driver is not up! return\n",
3332 mutex_unlock(&priv->wx_mutex);
3336 RT_TRACE(COMP_RESET,
3337 "%s():======>start to down the driver\n",
3340 rtl8192_rtx_disable(dev);
3341 rtl8192_cancel_deferred_work(priv);
3343 del_timer_sync(&priv->watch_dog_timer);
3345 ieee->sync_scan_hurryup = 1;
3346 if (ieee->state == IEEE80211_LINKED) {
3347 mutex_lock(&ieee->wx_mutex);
3348 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3349 ieee80211_stop_send_beacons(priv->ieee80211);
3350 del_timer_sync(&ieee->associate_timer);
3351 cancel_delayed_work(&ieee->associate_retry_wq);
3352 ieee80211_stop_scan(ieee);
3353 netif_carrier_off(dev);
3354 mutex_unlock(&ieee->wx_mutex);
3356 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3357 ieee80211_softmac_stop_protocol(priv->ieee80211);
3359 mutex_unlock(&priv->wx_mutex);
3360 RT_TRACE(COMP_RESET,
3361 "%s():<==========down process is finished\n",
3363 RT_TRACE(COMP_RESET,
3364 "%s():===========>start up the driver\n",
3366 reset_status = _rtl8192_up(dev);
3368 RT_TRACE(COMP_RESET,
3369 "%s():<===========up process is finished\n",
3371 if (reset_status == -EAGAIN) {
3372 if (reset_times < 3) {
3377 " ERR!!! %s(): Reset Failed!!\n",
3381 ieee->is_silent_reset = 1;
3382 EnableHWSecurityConfig8192(dev);
3383 if (ieee->state == IEEE80211_LINKED &&
3384 ieee->iw_mode == IW_MODE_INFRA) {
3385 ieee->set_chan(ieee->dev,
3386 ieee->current_network.channel);
3388 queue_work(ieee->wq, &ieee->associate_complete_wq);
3390 } else if (ieee->state == IEEE80211_LINKED &&
3391 ieee->iw_mode == IW_MODE_ADHOC) {
3392 ieee->set_chan(ieee->dev,
3393 ieee->current_network.channel);
3394 ieee->link_change(ieee->dev);
3396 ieee80211_start_send_beacons(ieee);
3398 if (ieee->data_hard_resume)
3399 ieee->data_hard_resume(ieee->dev);
3400 netif_carrier_on(ieee->dev);
3403 CamRestoreAllEntry(dev);
3405 priv->ResetProgress = RESET_TYPE_NORESET;
3406 priv->reset_count++;
3408 priv->bForcedSilentReset = false;
3409 priv->bResetInProgress = false;
3411 /* For test --> force write UFWP. */
3412 write_nic_byte(dev, UFWP, 1);
3413 RT_TRACE(COMP_RESET,
3414 "Reset finished!! ====>[%d]\n",
3419 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3420 u32 *TotalRxDataNum)
3426 *TotalRxDataNum = 0;
3428 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3429 (priv->ieee80211->LinkDetectInfo.SlotNum);
3430 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3431 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3432 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3433 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3434 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3435 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3436 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3441 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3443 struct delayed_work *dwork = to_delayed_work(work);
3444 struct r8192_priv *priv = container_of(dwork,
3445 struct r8192_priv, watch_dog_wq);
3446 struct net_device *dev = priv->ieee80211->dev;
3447 struct ieee80211_device *ieee = priv->ieee80211;
3448 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3449 static u8 check_reset_cnt;
3450 bool bBusyTraffic = false;
3451 u32 TotalRxBcnNum = 0;
3452 u32 TotalRxDataNum = 0;
3456 hal_dm_watchdog(dev);
3458 /* to get busy traffic condition */
3459 if (ieee->state == IEEE80211_LINKED) {
3460 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3461 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3462 bBusyTraffic = true;
3464 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3465 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3466 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3468 /* for AP roaming */
3469 if (priv->ieee80211->state == IEEE80211_LINKED &&
3470 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3471 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3472 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3474 if (rfState == eRfOff)
3475 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3478 "===>%s(): AP is power off, connect another one\n",
3480 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3481 notify_wx_assoc_event(priv->ieee80211);
3482 RemovePeerTS(priv->ieee80211,
3483 priv->ieee80211->current_network.bssid);
3484 priv->ieee80211->link_change(dev);
3485 queue_work(priv->ieee80211->wq,
3486 &priv->ieee80211->associate_procedure_wq);
3489 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3490 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3491 /* check if reset the driver */
3492 if (check_reset_cnt++ >= 3) {
3493 ResetType = rtl819x_ifcheck_resetornot(dev);
3494 check_reset_cnt = 3;
3496 /* This is control by OID set in Pomelo */
3497 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3498 (priv->bForcedSilentReset ||
3499 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3500 RT_TRACE(COMP_RESET,
3501 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3502 __func__, priv->force_reset, priv->ResetProgress,
3503 priv->bForcedSilentReset,
3504 priv->bDisableNormalResetCheck, ResetType);
3505 rtl819x_ifsilentreset(dev);
3507 priv->force_reset = false;
3508 priv->bForcedSilentReset = false;
3509 priv->bResetInProgress = false;
3510 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3513 static void watch_dog_timer_callback(unsigned long data)
3515 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3517 schedule_delayed_work(&priv->watch_dog_wq, 0);
3518 mod_timer(&priv->watch_dog_timer,
3519 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3522 static int _rtl8192_up(struct net_device *dev)
3524 struct r8192_priv *priv = ieee80211_priv(dev);
3525 int init_status = 0;
3528 priv->ieee80211->ieee_up = 1;
3529 RT_TRACE(COMP_INIT, "Bringing up iface");
3530 init_status = rtl8192_adapter_start(dev);
3532 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3534 priv->up = priv->ieee80211->ieee_up = 0;
3537 RT_TRACE(COMP_INIT, "start adapter finished\n");
3538 rtl8192_rx_enable(dev);
3539 if (priv->ieee80211->state != IEEE80211_LINKED)
3540 ieee80211_softmac_start_protocol(priv->ieee80211);
3541 ieee80211_reset_queue(priv->ieee80211);
3542 watch_dog_timer_callback((unsigned long)dev);
3543 if (!netif_queue_stopped(dev))
3544 netif_start_queue(dev);
3546 netif_wake_queue(dev);
3552 static int rtl8192_open(struct net_device *dev)
3554 struct r8192_priv *priv = ieee80211_priv(dev);
3557 mutex_lock(&priv->wx_mutex);
3558 ret = rtl8192_up(dev);
3559 mutex_unlock(&priv->wx_mutex);
3564 int rtl8192_up(struct net_device *dev)
3566 struct r8192_priv *priv = ieee80211_priv(dev);
3571 return _rtl8192_up(dev);
3575 static int rtl8192_close(struct net_device *dev)
3577 struct r8192_priv *priv = ieee80211_priv(dev);
3580 mutex_lock(&priv->wx_mutex);
3582 ret = rtl8192_down(dev);
3584 mutex_unlock(&priv->wx_mutex);
3589 int rtl8192_down(struct net_device *dev)
3591 struct r8192_priv *priv = ieee80211_priv(dev);
3598 priv->ieee80211->ieee_up = 0;
3599 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3601 if (!netif_queue_stopped(dev))
3602 netif_stop_queue(dev);
3604 rtl8192_rtx_disable(dev);
3606 /* Tx related queue release */
3607 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3608 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3609 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3610 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3612 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3613 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3615 /* as cancel_delayed_work will del work->timer, so if work is not
3616 * defined as struct delayed_work, it will corrupt
3618 rtl8192_cancel_deferred_work(priv);
3620 del_timer_sync(&priv->watch_dog_timer);
3623 ieee80211_softmac_stop_protocol(priv->ieee80211);
3624 memset(&priv->ieee80211->current_network, 0,
3625 offsetof(struct ieee80211_network, list));
3626 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3632 void rtl8192_commit(struct net_device *dev)
3634 struct r8192_priv *priv = ieee80211_priv(dev);
3635 int reset_status = 0;
3641 rtl8192_cancel_deferred_work(priv);
3642 del_timer_sync(&priv->watch_dog_timer);
3644 ieee80211_softmac_stop_protocol(priv->ieee80211);
3646 rtl8192_rtx_disable(dev);
3647 reset_status = _rtl8192_up(dev);
3650 static void rtl8192_restart(struct work_struct *work)
3652 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3654 struct net_device *dev = priv->ieee80211->dev;
3656 mutex_lock(&priv->wx_mutex);
3658 rtl8192_commit(dev);
3660 mutex_unlock(&priv->wx_mutex);
3663 static void r8192_set_multicast(struct net_device *dev)
3665 struct r8192_priv *priv = ieee80211_priv(dev);
3670 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3672 if (promisc != priv->promisc)
3674 priv->promisc = promisc;
3678 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3680 struct r8192_priv *priv = ieee80211_priv(dev);
3681 struct sockaddr *addr = mac;
3683 mutex_lock(&priv->wx_mutex);
3685 ether_addr_copy(dev->dev_addr, addr->sa_data);
3687 schedule_work(&priv->reset_wq);
3688 mutex_unlock(&priv->wx_mutex);
3693 /* based on ipw2200 driver */
3694 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3696 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3697 struct iwreq *wrq = (struct iwreq *)rq;
3699 struct ieee80211_device *ieee = priv->ieee80211;
3701 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3702 struct iw_point *p = &wrq->u.data;
3703 struct ieee_param *ipw = NULL;
3705 mutex_lock(&priv->wx_mutex);
3708 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3713 ipw = memdup_user(p->pointer, p->length);
3720 case RTL_IOCTL_WPA_SUPPLICANT:
3721 /* parse here for HW security */
3722 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3723 if (ipw->u.crypt.set_tx) {
3724 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3725 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3726 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3727 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3728 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3729 if (ipw->u.crypt.key_len == 13)
3730 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3731 else if (ipw->u.crypt.key_len == 5)
3732 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3734 ieee->pairwise_key_type = KEY_TYPE_NA;
3737 if (ieee->pairwise_key_type) {
3738 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3739 EnableHWSecurityConfig8192(dev);
3740 /* We fill both index entry and 4th
3741 * entry for pairwise key as in IPW
3742 * interface, adhoc will only get here,
3743 * so we need index entry for its
3744 * default key serching!
3746 setKey(dev, 4, ipw->u.crypt.idx,
3747 ieee->pairwise_key_type,
3748 (u8 *)ieee->ap_mac_addr,
3750 if (ieee->auth_mode != 2)
3751 setKey(dev, ipw->u.crypt.idx,
3753 ieee->pairwise_key_type,
3754 (u8 *)ieee->ap_mac_addr,
3758 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3759 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3760 ieee->group_key_type = KEY_TYPE_CCMP;
3761 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3762 ieee->group_key_type = KEY_TYPE_TKIP;
3763 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3764 if (ipw->u.crypt.key_len == 13)
3765 ieee->group_key_type = KEY_TYPE_WEP104;
3766 else if (ipw->u.crypt.key_len == 5)
3767 ieee->group_key_type = KEY_TYPE_WEP40;
3769 ieee->group_key_type = KEY_TYPE_NA;
3772 if (ieee->group_key_type) {
3773 setKey(dev, ipw->u.crypt.idx,
3777 ieee->group_key_type,
3787 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3798 mutex_unlock(&priv->wx_mutex);
3802 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3814 case DESC90_RATE5_5M:
3815 ret_rate = MGN_5_5M;
3817 case DESC90_RATE11M:
3826 case DESC90_RATE12M:
3829 case DESC90_RATE18M:
3832 case DESC90_RATE24M:
3835 case DESC90_RATE36M:
3838 case DESC90_RATE48M:
3841 case DESC90_RATE54M:
3848 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3855 case DESC90_RATEMCS0:
3856 ret_rate = MGN_MCS0;
3858 case DESC90_RATEMCS1:
3859 ret_rate = MGN_MCS1;
3861 case DESC90_RATEMCS2:
3862 ret_rate = MGN_MCS2;
3864 case DESC90_RATEMCS3:
3865 ret_rate = MGN_MCS3;
3867 case DESC90_RATEMCS4:
3868 ret_rate = MGN_MCS4;
3870 case DESC90_RATEMCS5:
3871 ret_rate = MGN_MCS5;
3873 case DESC90_RATEMCS6:
3874 ret_rate = MGN_MCS6;
3876 case DESC90_RATEMCS7:
3877 ret_rate = MGN_MCS7;
3879 case DESC90_RATEMCS8:
3880 ret_rate = MGN_MCS8;
3882 case DESC90_RATEMCS9:
3883 ret_rate = MGN_MCS9;
3885 case DESC90_RATEMCS10:
3886 ret_rate = MGN_MCS10;
3888 case DESC90_RATEMCS11:
3889 ret_rate = MGN_MCS11;
3891 case DESC90_RATEMCS12:
3892 ret_rate = MGN_MCS12;
3894 case DESC90_RATEMCS13:
3895 ret_rate = MGN_MCS13;
3897 case DESC90_RATEMCS14:
3898 ret_rate = MGN_MCS14;
3900 case DESC90_RATEMCS15:
3901 ret_rate = MGN_MCS15;
3903 case DESC90_RATEMCS32:
3904 ret_rate = 0x80 | 0x20;
3910 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3920 * Function: UpdateRxPktTimeStamp
3921 * Overview: Record the TSF time stamp when receiving a packet
3929 * (pRfd->Status.TimeStampHigh is updated)
3930 * (pRfd->Status.TimeStampLow is updated)
3934 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3935 struct ieee80211_rx_stats *stats)
3937 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3939 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3940 stats->mac_time[0] = priv->LastRxDescTSFLow;
3941 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3943 priv->LastRxDescTSFLow = stats->mac_time[0];
3944 priv->LastRxDescTSFHigh = stats->mac_time[1];
3949 static long rtl819x_translate_todbm(u8 signal_strength_index)
3951 long signal_power; /* in dBm. */
3953 /* Translate to dBm (x=0.5y-95). */
3954 signal_power = (long)((signal_strength_index + 1) >> 1);
3957 return signal_power;
3961 /* We can not declare RSSI/EVM total value of sliding window to
3962 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3963 * value will be kept in memory or disk. Declare the value in the adaptor
3964 * and it will be reinitialized when returned from S3/S4.
3966 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3967 struct ieee80211_rx_stats *pprevious_stats,
3968 struct ieee80211_rx_stats *pcurrent_stats)
3970 bool bcheck = false;
3972 u32 nspatial_stream, tmp_val;
3973 static u32 slide_rssi_index, slide_rssi_statistics;
3974 static u32 slide_evm_index, slide_evm_statistics;
3975 static u32 last_rssi, last_evm;
3977 static u32 slide_beacon_adc_pwdb_index;
3978 static u32 slide_beacon_adc_pwdb_statistics;
3979 static u32 last_beacon_adc_pwdb;
3981 struct rtl_80211_hdr_3addr *hdr;
3983 unsigned int frag, seq;
3985 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3986 sc = le16_to_cpu(hdr->seq_ctl);
3987 frag = WLAN_GET_SEQ_FRAG(sc);
3988 seq = WLAN_GET_SEQ_SEQ(sc);
3989 /* to record the sequence number */
3990 pcurrent_stats->Seq_Num = seq;
3992 /* Check whether we should take the previous packet into accounting */
3993 if (!pprevious_stats->bIsAMPDU) {
3994 /* if previous packet is not aggregated packet */
3998 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3999 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
4000 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
4001 priv->stats.slide_rssi_total -= last_rssi;
4003 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
4005 priv->stats.slide_signal_strength[slide_rssi_index++] =
4006 pprevious_stats->SignalStrength;
4007 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
4008 slide_rssi_index = 0;
4010 /* <1> Showed on UI for user, in dbm */
4011 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
4012 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
4013 pcurrent_stats->rssi = priv->stats.signal_strength;
4015 /* If the previous packet does not match the criteria, neglect it */
4016 if (!pprevious_stats->bPacketMatchBSSID) {
4017 if (!pprevious_stats->bToSelfBA)
4025 /* only rtl8190 supported
4026 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
4030 priv->stats.num_process_phyinfo++;
4032 /* record the general signal strength to the sliding window. */
4035 /* <2> Showed on UI for engineering
4036 * hardware does not provide rssi information for each rf path in CCK
4038 if (!pprevious_stats->bIsCCK &&
4039 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
4040 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
4041 if (!rtl8192_phy_CheckIsLegalRFPath(
4042 priv->ieee80211->dev, rfpath))
4045 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
4046 priv->stats.rx_rssi_percentage[rfpath] =
4047 pprevious_stats->RxMIMOSignalStrength[rfpath];
4048 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
4049 priv->stats.rx_rssi_percentage[rfpath] =
4050 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4051 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4052 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4054 priv->stats.rx_rssi_percentage[rfpath] =
4055 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4056 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4059 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4060 priv->stats.rx_rssi_percentage[rfpath]);
4066 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4067 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4068 pprevious_stats->RxPWDBAll);
4070 if (pprevious_stats->bPacketBeacon) {
4071 /* record the beacon pwdb to the sliding window. */
4072 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4073 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4074 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4075 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4077 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4078 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4079 slide_beacon_adc_pwdb_index++;
4080 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4081 slide_beacon_adc_pwdb_index = 0;
4082 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4083 if (pprevious_stats->RxPWDBAll >= 3)
4084 pprevious_stats->RxPWDBAll -= 3;
4087 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4088 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4089 pprevious_stats->RxPWDBAll);
4092 if (pprevious_stats->bPacketToSelf ||
4093 pprevious_stats->bPacketBeacon ||
4094 pprevious_stats->bToSelfBA) {
4095 if (priv->undecorated_smoothed_pwdb < 0)
4097 priv->undecorated_smoothed_pwdb =
4098 pprevious_stats->RxPWDBAll;
4099 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4100 priv->undecorated_smoothed_pwdb =
4101 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4102 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4103 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4105 priv->undecorated_smoothed_pwdb =
4106 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4107 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4112 /* record the general EVM to the sliding window. */
4113 if (pprevious_stats->SignalQuality) {
4114 if (pprevious_stats->bPacketToSelf ||
4115 pprevious_stats->bPacketBeacon ||
4116 pprevious_stats->bToSelfBA) {
4117 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4118 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4119 last_evm = priv->stats.slide_evm[slide_evm_index];
4120 priv->stats.slide_evm_total -= last_evm;
4123 priv->stats.slide_evm_total +=
4124 pprevious_stats->SignalQuality;
4126 priv->stats.slide_evm[slide_evm_index++] =
4127 pprevious_stats->SignalQuality;
4128 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4129 slide_evm_index = 0;
4131 /* <1> Showed on UI for user, in percentage. */
4132 tmp_val = priv->stats.slide_evm_total /
4133 slide_evm_statistics;
4134 priv->stats.signal_quality = tmp_val;
4135 /* Showed on UI for user in Windows Vista,
4138 priv->stats.last_signal_strength_inpercent = tmp_val;
4141 /* <2> Showed on UI for engineering */
4142 if (pprevious_stats->bPacketToSelf ||
4143 pprevious_stats->bPacketBeacon ||
4144 pprevious_stats->bToSelfBA) {
4145 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4146 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4147 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4148 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4149 priv->stats.rx_evm_percentage[nspatial_stream] =
4150 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4151 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4158 /*-----------------------------------------------------------------------------
4159 * Function: rtl819x_query_rxpwrpercentage()
4163 * Input: char antpower
4167 * Return: 0-100 percentage
4168 *---------------------------------------------------------------------------*/
4169 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
4171 if ((antpower <= -100) || (antpower >= 20))
4173 else if (antpower >= 0)
4176 return 100 + antpower;
4178 } /* QueryRxPwrPercentage */
4180 static u8 rtl819x_evm_dbtopercentage(s8 value)
4190 ret_val = 0 - ret_val;
4197 /* We want good-looking for signal strength/quality */
4198 static long rtl819x_signal_scale_mapping(long currsig)
4202 /* Step 1. Scale mapping. */
4203 if (currsig >= 61 && currsig <= 100)
4204 retsig = 90 + ((currsig - 60) / 4);
4205 else if (currsig >= 41 && currsig <= 60)
4206 retsig = 78 + ((currsig - 40) / 2);
4207 else if (currsig >= 31 && currsig <= 40)
4208 retsig = 66 + (currsig - 30);
4209 else if (currsig >= 21 && currsig <= 30)
4210 retsig = 54 + (currsig - 20);
4211 else if (currsig >= 5 && currsig <= 20)
4212 retsig = 42 + (((currsig - 5) * 2) / 3);
4213 else if (currsig == 4)
4215 else if (currsig == 3)
4217 else if (currsig == 2)
4219 else if (currsig == 1)
4227 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4232 switch (pdrvinfo->RxRate) {
4235 case DESC90_RATE5_5M:
4236 case DESC90_RATE11M:
4243 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4244 struct ieee80211_rx_stats *pstats,
4245 rx_drvinfo_819x_usb *pdrvinfo,
4246 struct ieee80211_rx_stats *precord_stats,
4247 bool bpacket_match_bssid,
4248 bool bpacket_toself,
4252 phy_sts_ofdm_819xusb_t *pofdm_buf;
4253 phy_sts_cck_819xusb_t *pcck_buf;
4254 phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4256 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4257 s8 rx_pwr[4], rx_pwr_all = 0;
4258 s8 rx_snrX, rx_evmX;
4260 u32 RSSI, total_rssi = 0;
4266 priv->stats.numqry_phystatus++;
4268 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4270 /* Record it for next packet processing */
4271 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4272 pstats->bPacketMatchBSSID =
4273 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4274 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4275 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4276 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4277 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4279 prxpkt = (u8 *)pdrvinfo;
4281 /* Move pointer to the 16th bytes. Phy status start address. */
4282 prxpkt += sizeof(rx_drvinfo_819x_usb);
4284 /* Initial the cck and ofdm buffer pointer */
4285 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4286 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4288 pstats->RxMIMOSignalQuality[0] = -1;
4289 pstats->RxMIMOSignalQuality[1] = -1;
4290 precord_stats->RxMIMOSignalQuality[0] = -1;
4291 precord_stats->RxMIMOSignalQuality[1] = -1;
4294 /* (1)Hardware does not provide RSSI for CCK */
4296 /* (2)PWDB, Average PWDB calculated by hardware
4297 * (for rate adaptive)
4301 priv->stats.numqry_phystatusCCK++;
4303 if (!priv->bCckHighPower) {
4304 report = pcck_buf->cck_agc_rpt & 0xc0;
4308 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4311 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4314 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4317 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4321 report = pcck_buf->cck_agc_rpt & 0x60;
4325 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4328 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4331 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4334 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4339 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4340 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4341 pstats->RecvSignalPower = pwdb_all;
4343 /* (3) Get Signal Quality (EVM) */
4345 if (pstats->RxPWDBAll > 40) {
4348 sq = pcck_buf->sq_rpt;
4350 if (pcck_buf->sq_rpt > 64)
4352 else if (pcck_buf->sq_rpt < 20)
4355 sq = ((64 - sq) * 100) / 44;
4357 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4358 pstats->RxMIMOSignalQuality[0] =
4359 precord_stats->RxMIMOSignalQuality[0] = sq;
4360 pstats->RxMIMOSignalQuality[1] =
4361 precord_stats->RxMIMOSignalQuality[1] = -1;
4364 priv->stats.numqry_phystatusHT++;
4366 /* (1)Get RSSI for HT rate */
4367 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4368 /* We will judge RF RX path now. */
4369 if (priv->brfpath_rxenable[i])
4374 if (!rtl8192_phy_CheckIsLegalRFPath(
4375 priv->ieee80211->dev, i))
4379 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4381 /* Get Rx snr value in DB */
4382 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4383 rx_snrX = (s8)(tmp_rxsnr);
4385 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4387 /* Translate DBM to percentage. */
4388 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4391 /* Record Signal Strength for next packet */
4392 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4393 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4397 /* (2)PWDB, Average PWDB calculated by hardware
4398 * (for rate adaptive)
4400 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4401 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4403 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4404 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4406 /* (3)EVM of HT rate */
4407 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4408 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4409 /* both spatial stream make sense */
4410 max_spatial_stream = 2;
4412 /* only spatial stream 1 makes sense */
4413 max_spatial_stream = 1;
4415 for (i = 0; i < max_spatial_stream; i++) {
4416 tmp_rxevm = pofdm_buf->rxevm_X[i];
4417 rx_evmX = (s8)(tmp_rxevm);
4419 /* Do not use shift operation like "rx_evmX >>= 1"
4420 * because the compiler of free build environment will
4421 * set the most significant bit to "zero" when doing
4422 * shifting operation which may change a negative value
4423 * to positive one, then the dbm value (which is
4424 * supposed to be negative) is not correct anymore.
4426 rx_evmX /= 2; /* dbm */
4428 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4430 /* Fill value in RFD, Get the first spatial
4433 pstats->SignalQuality =
4434 precord_stats->SignalQuality =
4436 pstats->RxMIMOSignalQuality[i] =
4437 precord_stats->RxMIMOSignalQuality[i] =
4442 /* record rx statistics for debug */
4443 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4444 prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4446 if (pdrvinfo->BW) /* 40M channel */
4447 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4448 else /* 20M channel */
4449 priv->stats.received_bwtype[0]++;
4452 /* UI BSS List signal strength(in percentage), make it good looking,
4453 * from 0~100. It is assigned to the BSS List in
4454 * GetValueFromBeaconOrProbeRsp().
4457 pstats->SignalStrength =
4458 precord_stats->SignalStrength =
4459 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4461 /* We can judge RX path number now. */
4462 if (rf_rx_num != 0) {
4463 pstats->SignalStrength =
4464 precord_stats->SignalStrength =
4465 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4468 } /* QueryRxPhyStatus8190Pci */
4470 static void rtl8192_record_rxdesc_forlateruse(
4471 struct ieee80211_rx_stats *psrc_stats,
4472 struct ieee80211_rx_stats *ptarget_stats)
4474 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4475 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4476 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4480 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4481 struct ieee80211_rx_stats *pstats,
4482 rx_drvinfo_819x_usb *pdrvinfo)
4484 /* TODO: We must only check packet for current MAC address.
4487 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4488 struct net_device *dev = info->dev;
4489 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4490 bool bpacket_match_bssid, bpacket_toself;
4491 bool bPacketBeacon = false, bToSelfBA = false;
4492 static struct ieee80211_rx_stats previous_stats;
4493 struct rtl_80211_hdr_3addr *hdr;
4496 /* Get Signal Quality for only RX data queue (but not command queue) */
4501 /* Get MAC frame start address. */
4502 tmp_buf = (u8 *)skb->data;
4504 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4505 fc = le16_to_cpu(hdr->frame_ctl);
4506 type = WLAN_FC_GET_TYPE(fc);
4507 praddr = hdr->addr1;
4509 /* Check if the received packet is acceptable. */
4510 bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
4511 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4512 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4513 bpacket_toself = bpacket_match_bssid &
4514 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4516 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4517 bPacketBeacon = true;
4518 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4519 if ((eqMacAddr(praddr, dev->dev_addr)))
4525 if (bpacket_match_bssid)
4526 priv->stats.numpacket_matchbssid++;
4528 priv->stats.numpacket_toself++;
4529 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4530 * Because phy information is contained in the last packet of AMPDU
4531 * only, so driver should process phy information of previous packet
4533 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4534 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4535 bpacket_match_bssid, bpacket_toself,
4536 bPacketBeacon, bToSelfBA);
4537 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4541 * Function: UpdateReceivedRateHistogramStatistics
4542 * Overview: Record the received data rate
4545 * struct net_device *dev
4546 * struct ieee80211_rx_stats *stats
4550 * (priv->stats.ReceivedRateHistogram[] is updated)
4555 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4556 struct ieee80211_rx_stats *stats)
4558 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4559 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4562 /* 1: short preamble/GI, 0: long preamble/GI */
4563 u32 preamble_guardinterval;
4568 else if (stats->bICV)
4571 if (stats->bShortPreamble)
4572 preamble_guardinterval = 1; /* short */
4574 preamble_guardinterval = 0; /* long */
4576 switch (stats->rate) {
4590 /* Legacy OFDM rate */
4615 /* 11n High throughput rate */
4668 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4669 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4670 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4674 static void query_rxdesc_status(struct sk_buff *skb,
4675 struct ieee80211_rx_stats *stats,
4676 bool bIsRxAggrSubframe)
4678 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4679 struct net_device *dev = info->dev;
4680 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4681 rx_drvinfo_819x_usb *driver_info = NULL;
4683 /* Get Rx Descriptor Information */
4684 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4686 stats->Length = desc->Length;
4687 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4688 stats->RxBufShift = 0;
4689 stats->bICV = desc->ICV;
4690 stats->bCRC = desc->CRC32;
4691 stats->bHwError = stats->bCRC | stats->bICV;
4692 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4693 stats->Decrypted = !desc->SWDec;
4695 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4696 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4697 stats->bHwError = false;
4699 stats->bHwError = stats->bCRC | stats->bICV;
4701 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4702 stats->bHwError |= 1;
4703 /* Get Driver Info */
4704 /* TODO: Need to verify it on FGPA platform
4705 * Driver info are written to the RxBuffer following rx desc
4707 if (stats->RxDrvInfoSize != 0) {
4708 driver_info = (rx_drvinfo_819x_usb *)(
4710 + sizeof(rx_desc_819x_usb)
4715 if (!stats->bHwError) {
4718 ret_rate = HwRateToMRate90(driver_info->RxHT,
4719 driver_info->RxRate);
4720 if (ret_rate == 0xff) {
4721 /* Abnormal Case: Receive CRC OK packet with Rx
4722 * descriptor indicating non supported rate.
4723 * Special Error Handling here
4726 stats->bHwError = 1;
4727 /* Set 1M rate by default */
4728 stats->rate = MGN_1M;
4730 stats->rate = ret_rate;
4736 stats->bShortPreamble = driver_info->SPLCP;
4739 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4741 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4742 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4743 (driver_info->FirstAGGR == 1);
4744 stats->TimeStampLow = driver_info->TSFL;
4746 UpdateRxPktTimeStamp8190(dev, stats);
4749 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4750 RT_TRACE(COMP_RXDESC,
4751 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4752 driver_info->FirstAGGR, driver_info->PartAggr);
4755 skb_pull(skb, sizeof(rx_desc_819x_usb));
4756 /* Get Total offset of MPDU Frame Body */
4757 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4759 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4763 stats->RxIs40MHzPacket = driver_info->BW;
4764 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4768 static void rtl8192_rx_nomal(struct sk_buff *skb)
4770 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4771 struct net_device *dev = info->dev;
4772 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4773 struct ieee80211_rx_stats stats = {
4775 .noise = 0x100 - 98,
4777 .freq = IEEE80211_24GHZ_BAND,
4780 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4781 bool unicast_packet = false;
4783 /* 20 is for ps-poll */
4784 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4785 /* first packet should not contain Rx aggregation header */
4786 query_rxdesc_status(skb, &stats, false);
4788 /* hardware related info */
4789 /* Process the MPDU received */
4790 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4792 rx_pkt_len = skb->len;
4793 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4794 unicast_packet = false;
4795 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4797 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4800 /* unicast packet */
4801 unicast_packet = true;
4804 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4805 dev_kfree_skb_any(skb);
4807 priv->stats.rxoktotal++;
4809 priv->stats.rxbytesunicast += rx_pkt_len;
4812 priv->stats.rxurberr++;
4813 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4814 dev_kfree_skb_any(skb);
4818 static void rtl819xusb_process_received_packet(
4819 struct net_device *dev,
4820 struct ieee80211_rx_stats *pstats)
4824 struct r8192_priv *priv = ieee80211_priv(dev);
4826 /* Get shifted bytes of Starting address of 802.11 header. */
4827 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4828 frame = pstats->virtual_address;
4829 frame_len = pstats->packetlength;
4830 #ifdef TODO /* about HCT */
4831 if (!Adapter->bInHctTest)
4832 CountRxErrStatistics(Adapter, pRfd);
4834 #ifdef ENABLE_PS /* for adding ps function in future */
4835 RT_RF_POWER_STATE rtState;
4836 /* When RF is off, we should not count the packet for hw/sw synchronize
4837 * reason, ie. there may be a duration while sw switch is changed and
4838 * hw switch is being changed.
4840 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4842 if (rtState == eRfOff)
4845 priv->stats.rxframgment++;
4848 RmMonitorSignalStrength(Adapter, pRfd);
4850 /* We have to release RFD and return if rx pkt is cmd pkt. */
4851 if (rtl819xusb_rx_command_packet(dev, pstats))
4861 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4862 struct ieee80211_rx_stats *stats)
4864 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4866 /* Get Rx Descriptor Information */
4867 stats->virtual_address = (u8 *)skb->data;
4868 stats->Length = desc->Length;
4869 stats->RxDrvInfoSize = 0;
4870 stats->RxBufShift = 0;
4871 stats->packetlength = stats->Length - scrclng;
4872 stats->fraglength = stats->packetlength;
4873 stats->fragoffset = 0;
4874 stats->ntotalfrag = 1;
4878 static void rtl8192_rx_cmd(struct sk_buff *skb)
4880 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4881 struct net_device *dev = info->dev;
4883 struct ieee80211_rx_stats stats = {
4885 .noise = 0x100 - 98,
4887 .freq = IEEE80211_24GHZ_BAND,
4890 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4891 query_rx_cmdpkt_desc_status(skb, &stats);
4892 /* prfd->queue_id = 1; */
4894 /* Process the command packet received. */
4896 rtl819xusb_process_received_packet(dev, &stats);
4898 dev_kfree_skb_any(skb);
4902 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4904 struct sk_buff *skb;
4905 struct rtl8192_rx_info *info;
4907 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4908 info = (struct rtl8192_rx_info *)skb->cb;
4909 switch (info->out_pipe) {
4910 /* Nomal packet pipe */
4912 priv->IrpPendingCount--;
4913 rtl8192_rx_nomal(skb);
4916 /* Command packet pipe */
4918 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4921 rtl8192_rx_cmd(skb);
4924 default: /* should never get here! */
4925 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4933 static const struct net_device_ops rtl8192_netdev_ops = {
4934 .ndo_open = rtl8192_open,
4935 .ndo_stop = rtl8192_close,
4936 .ndo_get_stats = rtl8192_stats,
4937 .ndo_tx_timeout = tx_timeout,
4938 .ndo_do_ioctl = rtl8192_ioctl,
4939 .ndo_set_rx_mode = r8192_set_multicast,
4940 .ndo_set_mac_address = r8192_set_mac_adr,
4941 .ndo_validate_addr = eth_validate_addr,
4942 .ndo_change_mtu = eth_change_mtu,
4943 .ndo_start_xmit = ieee80211_xmit,
4947 /****************************************************************************
4948 ---------------------------- USB_STUFF---------------------------
4949 *****************************************************************************/
4951 static int rtl8192_usb_probe(struct usb_interface *intf,
4952 const struct usb_device_id *id)
4954 struct net_device *dev = NULL;
4955 struct r8192_priv *priv = NULL;
4956 struct usb_device *udev = interface_to_usbdev(intf);
4959 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4961 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4965 usb_set_intfdata(intf, dev);
4966 SET_NETDEV_DEV(dev, &intf->dev);
4967 priv = ieee80211_priv(dev);
4968 priv->ieee80211 = netdev_priv(dev);
4971 dev->netdev_ops = &rtl8192_netdev_ops;
4973 dev->wireless_handlers = &r8192_wx_handlers_def;
4975 dev->type = ARPHRD_ETHER;
4977 dev->watchdog_timeo = HZ * 3;
4979 if (dev_alloc_name(dev, ifname) < 0) {
4981 "Oops: devname already taken! Trying wlan%%d...\n");
4983 dev_alloc_name(dev, ifname);
4986 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4987 if (rtl8192_init(dev) != 0) {
4988 RT_TRACE(COMP_ERR, "Initialization failed");
4992 netif_carrier_off(dev);
4993 netif_stop_queue(dev);
4995 ret = register_netdev(dev);
4999 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
5000 rtl8192_proc_init_one(dev);
5003 RT_TRACE(COMP_INIT, "Driver probe completed\n");
5008 kfree(priv->pFirmware);
5009 priv->pFirmware = NULL;
5010 rtl8192_usb_deleteendpoints(dev);
5013 free_ieee80211(dev);
5015 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
5019 /* detach all the work and timer structure declared or inititialize
5020 * in r8192U_init function.
5022 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
5024 cancel_work_sync(&priv->reset_wq);
5025 cancel_delayed_work(&priv->watch_dog_wq);
5026 cancel_delayed_work(&priv->update_beacon_wq);
5027 cancel_work_sync(&priv->qos_activate);
5031 static void rtl8192_usb_disconnect(struct usb_interface *intf)
5033 struct net_device *dev = usb_get_intfdata(intf);
5034 struct r8192_priv *priv = ieee80211_priv(dev);
5037 unregister_netdev(dev);
5040 "=============>wlan driver to be removed\n");
5041 rtl8192_proc_remove_one(dev);
5044 kfree(priv->pFirmware);
5045 priv->pFirmware = NULL;
5046 rtl8192_usb_deleteendpoints(dev);
5049 free_ieee80211(dev);
5050 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5053 static int __init rtl8192_usb_module_init(void)
5057 #ifdef CONFIG_IEEE80211_DEBUG
5058 ret = ieee80211_debug_init();
5060 pr_err("ieee80211_debug_init() failed %d\n", ret);
5064 ret = ieee80211_crypto_init();
5066 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5070 ret = ieee80211_crypto_tkip_init();
5072 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5076 ret = ieee80211_crypto_ccmp_init();
5078 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5082 ret = ieee80211_crypto_wep_init();
5084 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5088 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5089 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5090 RT_TRACE(COMP_INIT, "Initializing module");
5091 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5092 rtl8192_proc_module_init();
5093 return usb_register(&rtl8192_usb_driver);
5097 static void __exit rtl8192_usb_module_exit(void)
5099 usb_deregister(&rtl8192_usb_driver);
5101 RT_TRACE(COMP_DOWN, "Exiting");
5104 void EnableHWSecurityConfig8192(struct net_device *dev)
5106 u8 SECR_value = 0x0;
5107 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5108 struct ieee80211_device *ieee = priv->ieee80211;
5110 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5111 if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
5112 SECR_value |= SCR_RxUseDK;
5113 SECR_value |= SCR_TxUseDK;
5114 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5115 SECR_value |= SCR_RxUseDK;
5116 SECR_value |= SCR_TxUseDK;
5118 /* add HWSec active enable here.
5119 * default using hwsec. when peer AP is in N mode only and
5120 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5121 * it), use software security. when peer AP is in b,g,n mode mixed and
5122 * pairwise_key_type is none_aes, use g mode hw security.
5125 ieee->hwsec_active = 1;
5127 /* add hwsec_support flag to totol control hw_sec on/off */
5128 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5129 ieee->hwsec_active = 0;
5130 SECR_value &= ~SCR_RxDecEnable;
5132 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5133 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5135 write_nic_byte(dev, SECR, SECR_value);
5139 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5140 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5142 u32 TargetCommand = 0;
5143 u32 TargetContent = 0;
5147 if (EntryNo >= TOTAL_CAM_ENTRY)
5148 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5151 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5152 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5155 usConfig |= BIT(15) | (KeyType << 2);
5157 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
5160 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5161 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5162 TargetCommand |= BIT(31) | BIT(16);
5164 if (i == 0) { /* MAC|Config */
5165 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5166 (u32)(*(MacAddr + 1)) << 24 |
5169 write_nic_dword(dev, WCAMI, TargetContent);
5170 write_nic_dword(dev, RWCAM, TargetCommand);
5171 } else if (i == 1) { /* MAC */
5172 TargetContent = (u32)(*(MacAddr + 2)) |
5173 (u32)(*(MacAddr + 3)) << 8 |
5174 (u32)(*(MacAddr + 4)) << 16 |
5175 (u32)(*(MacAddr + 5)) << 24;
5176 write_nic_dword(dev, WCAMI, TargetContent);
5177 write_nic_dword(dev, RWCAM, TargetCommand);
5181 write_nic_dword(dev, WCAMI,
5182 *(KeyContent + i - 2));
5183 write_nic_dword(dev, RWCAM, TargetCommand);
5189 /***************************************************************************
5190 ------------------- module init / exit stubs ----------------
5191 ****************************************************************************/
5192 module_init(rtl8192_usb_module_init);
5193 module_exit(rtl8192_usb_module_exit);