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- /******************************************************************************
- * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
- * Linux device driver for RTL8192U
- *
- * Based on the r8187 driver, which is:
- * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Jerry chuang <wlanfae@realtek.com>
- */
- #ifndef CONFIG_FORCE_HARD_FLOAT
- double __floatsidf(int i)
- {
- return i;
- }
- unsigned int __fixunsdfsi(double d)
- {
- return d;
- }
- double __adddf3(double a, double b)
- {
- return a + b;
- }
- double __addsf3(float a, float b)
- {
- return a + b;
- }
- double __subdf3(double a, double b)
- {
- return a - b;
- }
- double __extendsfdf2(float a)
- {
- return a;
- }
- #endif
- #define CONFIG_RTL8192_IO_MAP
- #include <linux/uaccess.h>
- #include "r8192U_hw.h"
- #include "r8192U.h"
- #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
- #include "r8180_93cx6.h" /* Card EEPROM */
- #include "r8192U_wx.h"
- #include "r819xU_phy.h"
- #include "r819xU_phyreg.h"
- #include "r819xU_cmdpkt.h"
- #include "r8192U_dm.h"
- #include <linux/usb.h>
- #include <linux/slab.h>
- #include <linux/proc_fs.h>
- #include <linux/seq_file.h>
- /* FIXME: check if 2.6.7 is ok */
- #include "dot11d.h"
- /* set here to open your trace code. */
- u32 rt_global_debug_component = COMP_DOWN |
- COMP_SEC |
- COMP_ERR; /* always open err flags on */
- #define TOTAL_CAM_ENTRY 32
- #define CAM_CONTENT_COUNT 8
- static const struct usb_device_id rtl8192_usb_id_tbl[] = {
- /* Realtek */
- {USB_DEVICE(0x0bda, 0x8709)},
- /* Corega */
- {USB_DEVICE(0x07aa, 0x0043)},
- /* Belkin */
- {USB_DEVICE(0x050d, 0x805E)},
- /* Sitecom */
- {USB_DEVICE(0x0df6, 0x0031)},
- /* EnGenius */
- {USB_DEVICE(0x1740, 0x9201)},
- /* Dlink */
- {USB_DEVICE(0x2001, 0x3301)},
- /* Zinwell */
- {USB_DEVICE(0x5a57, 0x0290)},
- /* LG */
- {USB_DEVICE(0x043e, 0x7a01)},
- {}
- };
- MODULE_LICENSE("GPL");
- MODULE_VERSION("V 1.1");
- MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
- MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
- static char *ifname = "wlan%d";
- static int hwwep = 1; /* default use hw. set 0 to use software security */
- static int channels = 0x3fff;
- module_param(ifname, charp, S_IRUGO | S_IWUSR);
- module_param(hwwep, int, S_IRUGO | S_IWUSR);
- module_param(channels, int, S_IRUGO | S_IWUSR);
- MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
- MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
- MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
- static int rtl8192_usb_probe(struct usb_interface *intf,
- const struct usb_device_id *id);
- static void rtl8192_usb_disconnect(struct usb_interface *intf);
- static struct usb_driver rtl8192_usb_driver = {
- .name = RTL819xU_MODULE_NAME, /* Driver name */
- .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
- .probe = rtl8192_usb_probe, /* probe fn */
- .disconnect = rtl8192_usb_disconnect, /* remove fn */
- .suspend = NULL, /* PM suspend fn */
- .resume = NULL, /* PM resume fn */
- };
- struct CHANNEL_LIST {
- u8 Channel[32];
- u8 Len;
- };
- static struct CHANNEL_LIST ChannelPlan[] = {
- /* FCC */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24},
- /* IC */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
- /* ETSI */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
- /* Spain. Change to ETSI. */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
- /* France. Change to ETSI. */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
- /* MKK */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
- /* MKK1 */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
- /* Israel. */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
- /* For 11a , TELEC */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
- /* MIC */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
- /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
- {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
- };
- static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
- {
- int i, max_chan = -1, min_chan = -1;
- struct ieee80211_device *ieee = priv->ieee80211;
- switch (channel_plan) {
- case COUNTRY_CODE_FCC:
- case COUNTRY_CODE_IC:
- case COUNTRY_CODE_ETSI:
- case COUNTRY_CODE_SPAIN:
- case COUNTRY_CODE_FRANCE:
- case COUNTRY_CODE_MKK:
- case COUNTRY_CODE_MKK1:
- case COUNTRY_CODE_ISRAEL:
- case COUNTRY_CODE_TELEC:
- case COUNTRY_CODE_MIC:
- Dot11d_Init(ieee);
- ieee->bGlobalDomain = false;
- /* actually 8225 & 8256 rf chips only support B,G,24N mode */
- if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
- min_chan = 1;
- max_chan = 14;
- } else {
- RT_TRACE(COMP_ERR,
- "unknown rf chip, can't set channel map in function:%s()\n",
- __func__);
- }
- if (ChannelPlan[channel_plan].Len != 0) {
- /* Clear old channel map */
- memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
- sizeof(GET_DOT11D_INFO(ieee)->channel_map));
- /* Set new channel map */
- for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
- if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
- break;
- GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
- }
- }
- break;
- case COUNTRY_CODE_GLOBAL_DOMAIN:
- /* this flag enabled to follow 11d country IE setting,
- * otherwise, it shall follow global domain settings.
- */
- GET_DOT11D_INFO(ieee)->bEnabled = 0;
- Dot11d_Reset(ieee);
- ieee->bGlobalDomain = true;
- break;
- default:
- break;
- }
- }
- static void CamResetAllEntry(struct net_device *dev)
- {
- u32 ulcommand = 0;
- /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
- * associate to AP. However, ResetKey is called on
- * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
- * condition, Cam can not be reset because upper layer will not set
- * this static key again.
- */
- ulcommand |= BIT(31) | BIT(30);
- write_nic_dword(dev, RWCAM, ulcommand);
- }
- void write_cam(struct net_device *dev, u8 addr, u32 data)
- {
- write_nic_dword(dev, WCAMI, data);
- write_nic_dword(dev, RWCAM, BIT(31) | BIT(16) | (addr & 0xff));
- }
- u32 read_cam(struct net_device *dev, u8 addr)
- {
- u32 data;
- write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff));
- read_nic_dword(dev, 0xa8, &data);
- return data;
- }
- void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
- if (!usbdata)
- return;
- *usbdata = data;
- status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
- indx | 0xfe00, 0, usbdata, 1, HZ / 2);
- kfree(usbdata);
- if (status < 0)
- netdev_err(dev, "write_nic_byte_E TimeOut! status: %d\n",
- status);
- }
- int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
- if (!usbdata)
- return -ENOMEM;
- status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- indx | 0xfe00, 0, usbdata, 1, HZ / 2);
- *data = *usbdata;
- kfree(usbdata);
- if (status < 0) {
- netdev_err(dev, "%s failure status: %d\n", __func__, status);
- return status;
- }
- return 0;
- }
- /* as 92U has extend page from 4 to 16, so modify functions below. */
- void write_nic_byte(struct net_device *dev, int indx, u8 data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
- if (!usbdata)
- return;
- *usbdata = data;
- status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 1, HZ / 2);
- kfree(usbdata);
- if (status < 0)
- netdev_err(dev, "write_nic_byte TimeOut! status: %d\n", status);
- }
- void write_nic_word(struct net_device *dev, int indx, u16 data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
- if (!usbdata)
- return;
- *usbdata = data;
- status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 2, HZ / 2);
- kfree(usbdata);
- if (status < 0)
- netdev_err(dev, "write_nic_word TimeOut! status: %d\n", status);
- }
- void write_nic_dword(struct net_device *dev, int indx, u32 data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
- if (!usbdata)
- return;
- *usbdata = data;
- status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 4, HZ / 2);
- kfree(usbdata);
- if (status < 0)
- netdev_err(dev, "write_nic_dword TimeOut! status: %d\n",
- status);
- }
- int read_nic_byte(struct net_device *dev, int indx, u8 *data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
- if (!usbdata)
- return -ENOMEM;
- status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 1, HZ / 2);
- *data = *usbdata;
- kfree(usbdata);
- if (status < 0) {
- netdev_err(dev, "%s failure status: %d\n", __func__, status);
- return status;
- }
- return 0;
- }
- int read_nic_word(struct net_device *dev, int indx, u16 *data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
- if (!usbdata)
- return -ENOMEM;
- status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 2, HZ / 2);
- *data = *usbdata;
- kfree(usbdata);
- if (status < 0) {
- netdev_err(dev, "%s failure status: %d\n", __func__, status);
- return status;
- }
- return 0;
- }
- static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
- if (!usbdata)
- return -ENOMEM;
- status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- indx | 0xfe00, 0, usbdata, 2, HZ / 2);
- *data = *usbdata;
- kfree(usbdata);
- if (status < 0) {
- netdev_err(dev, "%s failure status: %d\n", __func__, status);
- return status;
- }
- return 0;
- }
- int read_nic_dword(struct net_device *dev, int indx, u32 *data)
- {
- int status;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct usb_device *udev = priv->udev;
- u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
- if (!usbdata)
- return -ENOMEM;
- status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
- (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
- usbdata, 4, HZ / 2);
- *data = *usbdata;
- kfree(usbdata);
- if (status < 0) {
- netdev_err(dev, "%s failure status: %d\n", __func__, status);
- return status;
- }
- return 0;
- }
- /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
- /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
- /* this might still called in what was the PHY rtl8185/rtl8192 common code
- * plans are to possibility turn it again in one common code...
- */
- inline void force_pci_posting(struct net_device *dev)
- {
- }
- static struct net_device_stats *rtl8192_stats(struct net_device *dev);
- static void rtl8192_restart(struct work_struct *work);
- static void watch_dog_timer_callback(unsigned long data);
- /****************************************************************************
- * -----------------------------PROCFS STUFF-------------------------
- *****************************************************************************
- */
- static struct proc_dir_entry *rtl8192_proc;
- static int proc_get_stats_ap(struct seq_file *m, void *v)
- {
- struct net_device *dev = m->private;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct ieee80211_device *ieee = priv->ieee80211;
- struct ieee80211_network *target;
- list_for_each_entry(target, &ieee->network_list, list) {
- const char *wpa = "non_WPA";
- if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
- wpa = "WPA";
- seq_printf(m, "%s %s\n", target->ssid, wpa);
- }
- return 0;
- }
- static int proc_get_registers(struct seq_file *m, void *v)
- {
- struct net_device *dev = m->private;
- int i, n, max = 0xff;
- u8 byte_rd;
- seq_puts(m, "\n####################page 0##################\n ");
- for (n = 0; n <= max;) {
- seq_printf(m, "\nD: %2x > ", n);
- for (i = 0; i < 16 && n <= max; i++, n++) {
- read_nic_byte(dev, 0x000 | n, &byte_rd);
- seq_printf(m, "%2x ", byte_rd);
- }
- }
- seq_puts(m, "\n####################page 1##################\n ");
- for (n = 0; n <= max;) {
- seq_printf(m, "\nD: %2x > ", n);
- for (i = 0; i < 16 && n <= max; i++, n++) {
- read_nic_byte(dev, 0x100 | n, &byte_rd);
- seq_printf(m, "%2x ", byte_rd);
- }
- }
- seq_puts(m, "\n####################page 3##################\n ");
- for (n = 0; n <= max;) {
- seq_printf(m, "\nD: %2x > ", n);
- for (i = 0; i < 16 && n <= max; i++, n++) {
- read_nic_byte(dev, 0x300 | n, &byte_rd);
- seq_printf(m, "%2x ", byte_rd);
- }
- }
- seq_putc(m, '\n');
- return 0;
- }
- static int proc_get_stats_tx(struct seq_file *m, void *v)
- {
- struct net_device *dev = m->private;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- seq_printf(m,
- "TX VI priority ok int: %lu\n"
- "TX VI priority error int: %lu\n"
- "TX VO priority ok int: %lu\n"
- "TX VO priority error int: %lu\n"
- "TX BE priority ok int: %lu\n"
- "TX BE priority error int: %lu\n"
- "TX BK priority ok int: %lu\n"
- "TX BK priority error int: %lu\n"
- "TX MANAGE priority ok int: %lu\n"
- "TX MANAGE priority error int: %lu\n"
- "TX BEACON priority ok int: %lu\n"
- "TX BEACON priority error int: %lu\n"
- "TX queue resume: %lu\n"
- "TX queue stopped?: %d\n"
- "TX fifo overflow: %lu\n"
- "TX VI queue: %d\n"
- "TX VO queue: %d\n"
- "TX BE queue: %d\n"
- "TX BK queue: %d\n"
- "TX VI dropped: %lu\n"
- "TX VO dropped: %lu\n"
- "TX BE dropped: %lu\n"
- "TX BK dropped: %lu\n"
- "TX total data packets %lu\n",
- priv->stats.txviokint,
- priv->stats.txvierr,
- priv->stats.txvookint,
- priv->stats.txvoerr,
- priv->stats.txbeokint,
- priv->stats.txbeerr,
- priv->stats.txbkokint,
- priv->stats.txbkerr,
- priv->stats.txmanageokint,
- priv->stats.txmanageerr,
- priv->stats.txbeaconokint,
- priv->stats.txbeaconerr,
- priv->stats.txresumed,
- netif_queue_stopped(dev),
- priv->stats.txoverflow,
- atomic_read(&(priv->tx_pending[VI_PRIORITY])),
- atomic_read(&(priv->tx_pending[VO_PRIORITY])),
- atomic_read(&(priv->tx_pending[BE_PRIORITY])),
- atomic_read(&(priv->tx_pending[BK_PRIORITY])),
- priv->stats.txvidrop,
- priv->stats.txvodrop,
- priv->stats.txbedrop,
- priv->stats.txbkdrop,
- priv->stats.txdatapkt
- );
- return 0;
- }
- static int proc_get_stats_rx(struct seq_file *m, void *v)
- {
- struct net_device *dev = m->private;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- seq_printf(m,
- "RX packets: %lu\n"
- "RX urb status error: %lu\n"
- "RX invalid urb error: %lu\n",
- priv->stats.rxoktotal,
- priv->stats.rxstaterr,
- priv->stats.rxurberr);
- return 0;
- }
- static void rtl8192_proc_module_init(void)
- {
- RT_TRACE(COMP_INIT, "Initializing proc filesystem");
- rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
- }
- /*
- * seq_file wrappers for procfile show routines.
- */
- static int rtl8192_proc_open(struct inode *inode, struct file *file)
- {
- struct net_device *dev = proc_get_parent_data(inode);
- int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
- return single_open(file, show, dev);
- }
- static const struct file_operations rtl8192_proc_fops = {
- .open = rtl8192_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- };
- /*
- * Table of proc files we need to create.
- */
- struct rtl8192_proc_file {
- char name[12];
- int (*show)(struct seq_file *, void *);
- };
- static const struct rtl8192_proc_file rtl8192_proc_files[] = {
- { "stats-rx", &proc_get_stats_rx },
- { "stats-tx", &proc_get_stats_tx },
- { "stats-ap", &proc_get_stats_ap },
- { "registers", &proc_get_registers },
- { "" }
- };
- static void rtl8192_proc_init_one(struct net_device *dev)
- {
- const struct rtl8192_proc_file *f;
- struct proc_dir_entry *dir;
- if (rtl8192_proc) {
- dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
- if (!dir) {
- RT_TRACE(COMP_ERR,
- "Unable to initialize /proc/net/rtl8192/%s\n",
- dev->name);
- return;
- }
- for (f = rtl8192_proc_files; f->name[0]; f++) {
- if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
- &rtl8192_proc_fops, f->show)) {
- RT_TRACE(COMP_ERR,
- "Unable to initialize /proc/net/rtl8192/%s/%s\n",
- dev->name, f->name);
- return;
- }
- }
- }
- }
- static void rtl8192_proc_remove_one(struct net_device *dev)
- {
- remove_proc_subtree(dev->name, rtl8192_proc);
- }
- /****************************************************************************
- -----------------------------MISC STUFF-------------------------
- *****************************************************************************/
- short check_nic_enough_desc(struct net_device *dev, int queue_index)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int used = atomic_read(&priv->tx_pending[queue_index]);
- return (used < MAX_TX_URB);
- }
- static void tx_timeout(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- schedule_work(&priv->reset_wq);
- }
- void rtl8192_update_msr(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 msr;
- read_nic_byte(dev, MSR, &msr);
- msr &= ~MSR_LINK_MASK;
- /* do not change in link_state != WLAN_LINK_ASSOCIATED.
- * msr must be updated if the state is ASSOCIATING.
- * this is intentional and make sense for ad-hoc and
- * master (see the create BSS/IBSS func)
- */
- if (priv->ieee80211->state == IEEE80211_LINKED) {
- if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
- msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
- else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
- msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
- else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
- msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
- } else {
- msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
- }
- write_nic_byte(dev, MSR, msr);
- }
- void rtl8192_set_chan(struct net_device *dev, short ch)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
- priv->chan = ch;
- /* this hack should avoid frame TX during channel setting*/
- /* need to implement rf set channel here */
- if (priv->rf_set_chan)
- priv->rf_set_chan(dev, priv->chan);
- mdelay(10);
- }
- static void rtl8192_rx_isr(struct urb *urb);
- static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
- {
- return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
- + pstats->RxBufShift);
- }
- static int rtl8192_rx_initiate(struct net_device *dev)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct urb *entry;
- struct sk_buff *skb;
- struct rtl8192_rx_info *info;
- /* nomal packet rx procedure */
- while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
- skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
- if (!skb)
- break;
- entry = usb_alloc_urb(0, GFP_KERNEL);
- if (!entry) {
- kfree_skb(skb);
- break;
- }
- usb_fill_bulk_urb(entry, priv->udev,
- usb_rcvbulkpipe(priv->udev, 3),
- skb_tail_pointer(skb),
- RX_URB_SIZE, rtl8192_rx_isr, skb);
- info = (struct rtl8192_rx_info *)skb->cb;
- info->urb = entry;
- info->dev = dev;
- info->out_pipe = 3; /* denote rx normal packet queue */
- skb_queue_tail(&priv->rx_queue, skb);
- usb_submit_urb(entry, GFP_KERNEL);
- }
- /* command packet rx procedure */
- while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
- skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
- if (!skb)
- break;
- entry = usb_alloc_urb(0, GFP_KERNEL);
- if (!entry) {
- kfree_skb(skb);
- break;
- }
- usb_fill_bulk_urb(entry, priv->udev,
- usb_rcvbulkpipe(priv->udev, 9),
- skb_tail_pointer(skb),
- RX_URB_SIZE, rtl8192_rx_isr, skb);
- info = (struct rtl8192_rx_info *)skb->cb;
- info->urb = entry;
- info->dev = dev;
- info->out_pipe = 9; /* denote rx cmd packet queue */
- skb_queue_tail(&priv->rx_queue, skb);
- usb_submit_urb(entry, GFP_KERNEL);
- }
- return 0;
- }
- void rtl8192_set_rxconf(struct net_device *dev)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- u32 rxconf;
- read_nic_dword(dev, RCR, &rxconf);
- rxconf = rxconf & ~MAC_FILTER_MASK;
- rxconf = rxconf | RCR_AMF;
- rxconf = rxconf | RCR_ADF;
- rxconf = rxconf | RCR_AB;
- rxconf = rxconf | RCR_AM;
- if (dev->flags & IFF_PROMISC)
- DMESG("NIC in promisc mode");
- if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
- dev->flags & IFF_PROMISC) {
- rxconf = rxconf | RCR_AAP;
- } else {
- rxconf = rxconf | RCR_APM;
- rxconf = rxconf | RCR_CBSSID;
- }
- if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
- rxconf = rxconf | RCR_AICV;
- rxconf = rxconf | RCR_APWRMGT;
- }
- if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
- rxconf = rxconf | RCR_ACRC32;
- rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
- rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
- rxconf = rxconf & ~MAX_RX_DMA_MASK;
- rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
- rxconf = rxconf | RCR_ONLYERLPKT;
- write_nic_dword(dev, RCR, rxconf);
- }
- /* wait to be removed */
- void rtl8192_rx_enable(struct net_device *dev)
- {
- rtl8192_rx_initiate(dev);
- }
- void rtl8192_tx_enable(struct net_device *dev)
- {
- }
- void rtl8192_rtx_disable(struct net_device *dev)
- {
- u8 cmd;
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct sk_buff *skb;
- struct rtl8192_rx_info *info;
- read_nic_byte(dev, CMDR, &cmd);
- write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
- force_pci_posting(dev);
- mdelay(10);
- while ((skb = __skb_dequeue(&priv->rx_queue))) {
- info = (struct rtl8192_rx_info *)skb->cb;
- if (!info->urb)
- continue;
- usb_kill_urb(info->urb);
- kfree_skb(skb);
- }
- if (skb_queue_len(&priv->skb_queue))
- netdev_warn(dev, "skb_queue not empty\n");
- skb_queue_purge(&priv->skb_queue);
- }
- inline u16 ieeerate2rtlrate(int rate)
- {
- switch (rate) {
- case 10:
- return 0;
- case 20:
- return 1;
- case 55:
- return 2;
- case 110:
- return 3;
- case 60:
- return 4;
- case 90:
- return 5;
- case 120:
- return 6;
- case 180:
- return 7;
- case 240:
- return 8;
- case 360:
- return 9;
- case 480:
- return 10;
- case 540:
- return 11;
- default:
- return 3;
- }
- }
- static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540};
- inline u16 rtl8192_rate2rate(short rate)
- {
- if (rate > 11)
- return 0;
- return rtl_rate[rate];
- }
- /* The prototype of rx_isr has changed since one version of Linux Kernel */
- static void rtl8192_rx_isr(struct urb *urb)
- {
- struct sk_buff *skb = (struct sk_buff *)urb->context;
- struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
- struct net_device *dev = info->dev;
- struct r8192_priv *priv = ieee80211_priv(dev);
- int out_pipe = info->out_pipe;
- int err;
- if (!priv->up)
- return;
- if (unlikely(urb->status)) {
- info->urb = NULL;
- priv->stats.rxstaterr++;
- priv->ieee80211->stats.rx_errors++;
- usb_free_urb(urb);
- return;
- }
- skb_unlink(skb, &priv->rx_queue);
- skb_put(skb, urb->actual_length);
- skb_queue_tail(&priv->skb_queue, skb);
- tasklet_schedule(&priv->irq_rx_tasklet);
- skb = dev_alloc_skb(RX_URB_SIZE);
- if (unlikely(!skb)) {
- usb_free_urb(urb);
- netdev_err(dev, "%s(): can't alloc skb\n", __func__);
- /* TODO check rx queue length and refill *somewhere* */
- return;
- }
- usb_fill_bulk_urb(urb, priv->udev,
- usb_rcvbulkpipe(priv->udev, out_pipe),
- skb_tail_pointer(skb),
- RX_URB_SIZE, rtl8192_rx_isr, skb);
- info = (struct rtl8192_rx_info *)skb->cb;
- info->urb = urb;
- info->dev = dev;
- info->out_pipe = out_pipe;
- urb->transfer_buffer = skb_tail_pointer(skb);
- urb->context = skb;
- skb_queue_tail(&priv->rx_queue, skb);
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err && err != EPERM)
- netdev_err(dev,
- "can not submit rxurb, err is %x, URB status is %x\n",
- err, urb->status);
- }
- static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
- struct ieee80211_rx_stats *pstats)
- {
- u32 status;
- status = cmpk_message_handle_rx(dev, pstats);
- if (status)
- DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
- return status;
- }
- static void rtl8192_data_hard_stop(struct net_device *dev)
- {
- /* FIXME !! */
- }
- static void rtl8192_data_hard_resume(struct net_device *dev)
- {
- /* FIXME !! */
- }
- /* this function TX data frames when the ieee80211 stack requires this.
- * It checks also if we need to stop the ieee tx queue, eventually do it
- */
- static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
- int rate)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- int ret;
- unsigned long flags;
- cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- u8 queue_index = tcb_desc->queue_index;
- /* shall not be referred by command packet */
- RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
- spin_lock_irqsave(&priv->tx_lock, flags);
- memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
- tcb_desc->bTxEnableFwCalcDur = 1;
- skb_push(skb, priv->ieee80211->tx_headroom);
- ret = rtl8192_tx(dev, skb);
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- }
- /* This is a rough attempt to TX a frame
- * This is called by the ieee 80211 stack to TX management frames.
- * If the ring is full packet are dropped (for data frame the queue
- * is stopped before this can happen).
- */
- static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- int ret;
- unsigned long flags;
- cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- u8 queue_index = tcb_desc->queue_index;
- spin_lock_irqsave(&priv->tx_lock, flags);
- memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
- if (queue_index == TXCMD_QUEUE) {
- skb_push(skb, USB_HWDESC_HEADER_LEN);
- rtl819xU_tx_cmd(dev, skb);
- ret = 1;
- } else {
- skb_push(skb, priv->ieee80211->tx_headroom);
- ret = rtl8192_tx(dev, skb);
- }
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- return ret;
- }
- static void rtl8192_tx_isr(struct urb *tx_urb)
- {
- struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
- struct net_device *dev = (struct net_device *)(skb->cb);
- struct r8192_priv *priv = NULL;
- cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- u8 queue_index = tcb_desc->queue_index;
- priv = ieee80211_priv(dev);
- if (tcb_desc->queue_index != TXCMD_QUEUE) {
- if (tx_urb->status == 0) {
- dev->trans_start = jiffies;
- priv->stats.txoktotal++;
- priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
- priv->stats.txbytesunicast +=
- (skb->len - priv->ieee80211->tx_headroom);
- } else {
- priv->ieee80211->stats.tx_errors++;
- /* TODO */
- }
- }
- /* free skb and tx_urb */
- if (skb != NULL) {
- dev_kfree_skb_any(skb);
- usb_free_urb(tx_urb);
- atomic_dec(&priv->tx_pending[queue_index]);
- }
- /*
- * Handle HW Beacon:
- * We had transfer our beacon frame to host controller at this moment.
- *
- *
- * Caution:
- * Handling the wait queue of command packets.
- * For Tx command packets, we must not do TCB fragment because it is
- * not handled right now. We must cut the packets to match the size of
- * TX_CMD_PKT before we send it.
- */
- /* Handle MPDU in wait queue. */
- if (queue_index != BEACON_QUEUE) {
- /* Don't send data frame during scanning.*/
- if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
- (!(priv->ieee80211->queue_stop))) {
- skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
- if (skb)
- priv->ieee80211->softmac_hard_start_xmit(skb,
- dev);
- return; /* avoid further processing AMSDU */
- }
- }
- }
- static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_network *net;
- u8 i = 0, basic_rate = 0;
- net = &priv->ieee80211->current_network;
- for (i = 0; i < net->rates_len; i++) {
- basic_rate = net->rates[i] & 0x7f;
- switch (basic_rate) {
- case MGN_1M:
- *rate_config |= RRSR_1M;
- break;
- case MGN_2M:
- *rate_config |= RRSR_2M;
- break;
- case MGN_5_5M:
- *rate_config |= RRSR_5_5M;
- break;
- case MGN_11M:
- *rate_config |= RRSR_11M;
- break;
- case MGN_6M:
- *rate_config |= RRSR_6M;
- break;
- case MGN_9M:
- *rate_config |= RRSR_9M;
- break;
- case MGN_12M:
- *rate_config |= RRSR_12M;
- break;
- case MGN_18M:
- *rate_config |= RRSR_18M;
- break;
- case MGN_24M:
- *rate_config |= RRSR_24M;
- break;
- case MGN_36M:
- *rate_config |= RRSR_36M;
- break;
- case MGN_48M:
- *rate_config |= RRSR_48M;
- break;
- case MGN_54M:
- *rate_config |= RRSR_54M;
- break;
- }
- }
- for (i = 0; i < net->rates_ex_len; i++) {
- basic_rate = net->rates_ex[i] & 0x7f;
- switch (basic_rate) {
- case MGN_1M:
- *rate_config |= RRSR_1M;
- break;
- case MGN_2M:
- *rate_config |= RRSR_2M;
- break;
- case MGN_5_5M:
- *rate_config |= RRSR_5_5M;
- break;
- case MGN_11M:
- *rate_config |= RRSR_11M;
- break;
- case MGN_6M:
- *rate_config |= RRSR_6M;
- break;
- case MGN_9M:
- *rate_config |= RRSR_9M;
- break;
- case MGN_12M:
- *rate_config |= RRSR_12M;
- break;
- case MGN_18M:
- *rate_config |= RRSR_18M;
- break;
- case MGN_24M:
- *rate_config |= RRSR_24M;
- break;
- case MGN_36M:
- *rate_config |= RRSR_36M;
- break;
- case MGN_48M:
- *rate_config |= RRSR_48M;
- break;
- case MGN_54M:
- *rate_config |= RRSR_54M;
- break;
- }
- }
- }
- #define SHORT_SLOT_TIME 9
- #define NON_SHORT_SLOT_TIME 20
- static void rtl8192_update_cap(struct net_device *dev, u16 cap)
- {
- u32 tmp = 0;
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_network *net = &priv->ieee80211->current_network;
- priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
- tmp = priv->basic_rate;
- if (priv->short_preamble)
- tmp |= BRSR_AckShortPmb;
- write_nic_dword(dev, RRSR, tmp);
- if (net->mode & (IEEE_G | IEEE_N_24G)) {
- u8 slot_time = 0;
- if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
- (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
- /* short slot time */
- slot_time = SHORT_SLOT_TIME;
- else /* long slot time */
- slot_time = NON_SHORT_SLOT_TIME;
- priv->slot_time = slot_time;
- write_nic_byte(dev, SLOT_TIME, slot_time);
- }
- }
- static void rtl8192_net_update(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_network *net;
- u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
- u16 rate_config = 0;
- net = &priv->ieee80211->current_network;
- rtl8192_config_rate(dev, &rate_config);
- priv->basic_rate = rate_config & 0x15f;
- write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
- write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
- rtl8192_update_msr(dev);
- if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
- write_nic_word(dev, ATIMWND, 2);
- write_nic_word(dev, BCN_DMATIME, 1023);
- write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
- write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
- write_nic_byte(dev, BCN_ERR_THRESH, 100);
- BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
- /* TODO: BcnIFS may required to be changed on ASIC */
- BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
- write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
- }
- }
- /* temporary hw beacon is not used any more.
- * open it when necessary
- */
- void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
- {
- }
- inline u8 rtl8192_IsWirelessBMode(u16 rate)
- {
- if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220))
- return 1;
- else
- return 0;
- }
- short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int status;
- struct urb *tx_urb;
- unsigned int idx_pipe;
- tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
- cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- u8 queue_index = tcb_desc->queue_index;
- atomic_inc(&priv->tx_pending[queue_index]);
- tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!tx_urb) {
- dev_kfree_skb(skb);
- return -ENOMEM;
- }
- memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
- /* Tx descriptor ought to be set according to the skb->cb */
- pdesc->FirstSeg = 1;
- pdesc->LastSeg = 1;
- pdesc->CmdInit = tcb_desc->bCmdOrInit;
- pdesc->TxBufferSize = tcb_desc->txbuf_size;
- pdesc->OWN = 1;
- pdesc->LINIP = tcb_desc->bLastIniPkt;
- /*---------------------------------------------------------------------
- * Fill up USB_OUT_CONTEXT.
- *---------------------------------------------------------------------
- */
- idx_pipe = 0x04;
- usb_fill_bulk_urb(tx_urb, priv->udev,
- usb_sndbulkpipe(priv->udev, idx_pipe),
- skb->data, skb->len, rtl8192_tx_isr, skb);
- status = usb_submit_urb(tx_urb, GFP_ATOMIC);
- if (!status)
- return 0;
- DMESGE("Error TX CMD URB, error %d", status);
- return -1;
- }
- /*
- * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
- * in TxFwInfo data structure
- * 2006.10.30 by Emily
- *
- * \param QUEUEID Software Queue
- */
- static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
- {
- u8 QueueSelect = 0x0; /* defualt set to */
- switch (QueueID) {
- case BE_QUEUE:
- QueueSelect = QSLT_BE;
- break;
- case BK_QUEUE:
- QueueSelect = QSLT_BK;
- break;
- case VO_QUEUE:
- QueueSelect = QSLT_VO;
- break;
- case VI_QUEUE:
- QueueSelect = QSLT_VI;
- break;
- case MGNT_QUEUE:
- QueueSelect = QSLT_MGNT;
- break;
- case BEACON_QUEUE:
- QueueSelect = QSLT_BEACON;
- break;
- /* TODO: mark other queue selection until we verify it is OK */
- /* TODO: Remove Assertions */
- case TXCMD_QUEUE:
- QueueSelect = QSLT_CMD;
- break;
- case HIGH_QUEUE:
- QueueSelect = QSLT_HIGH;
- break;
- default:
- RT_TRACE(COMP_ERR,
- "TransmitTCB(): Impossible Queue Selection: %d\n",
- QueueID);
- break;
- }
- return QueueSelect;
- }
- static u8 MRateToHwRate8190Pci(u8 rate)
- {
- u8 ret = DESC90_RATE1M;
- switch (rate) {
- case MGN_1M:
- ret = DESC90_RATE1M;
- break;
- case MGN_2M:
- ret = DESC90_RATE2M;
- break;
- case MGN_5_5M:
- ret = DESC90_RATE5_5M;
- break;
- case MGN_11M:
- ret = DESC90_RATE11M;
- break;
- case MGN_6M:
- ret = DESC90_RATE6M;
- break;
- case MGN_9M:
- ret = DESC90_RATE9M;
- break;
- case MGN_12M:
- ret = DESC90_RATE12M;
- break;
- case MGN_18M:
- ret = DESC90_RATE18M;
- break;
- case MGN_24M:
- ret = DESC90_RATE24M;
- break;
- case MGN_36M:
- ret = DESC90_RATE36M;
- break;
- case MGN_48M:
- ret = DESC90_RATE48M;
- break;
- case MGN_54M:
- ret = DESC90_RATE54M;
- break;
- /* HT rate since here */
- case MGN_MCS0:
- ret = DESC90_RATEMCS0;
- break;
- case MGN_MCS1:
- ret = DESC90_RATEMCS1;
- break;
- case MGN_MCS2:
- ret = DESC90_RATEMCS2;
- break;
- case MGN_MCS3:
- ret = DESC90_RATEMCS3;
- break;
- case MGN_MCS4:
- ret = DESC90_RATEMCS4;
- break;
- case MGN_MCS5:
- ret = DESC90_RATEMCS5;
- break;
- case MGN_MCS6:
- ret = DESC90_RATEMCS6;
- break;
- case MGN_MCS7:
- ret = DESC90_RATEMCS7;
- break;
- case MGN_MCS8:
- ret = DESC90_RATEMCS8;
- break;
- case MGN_MCS9:
- ret = DESC90_RATEMCS9;
- break;
- case MGN_MCS10:
- ret = DESC90_RATEMCS10;
- break;
- case MGN_MCS11:
- ret = DESC90_RATEMCS11;
- break;
- case MGN_MCS12:
- ret = DESC90_RATEMCS12;
- break;
- case MGN_MCS13:
- ret = DESC90_RATEMCS13;
- break;
- case MGN_MCS14:
- ret = DESC90_RATEMCS14;
- break;
- case MGN_MCS15:
- ret = DESC90_RATEMCS15;
- break;
- case (0x80 | 0x20):
- ret = DESC90_RATEMCS32;
- break;
- default:
- break;
- }
- return ret;
- }
- static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
- {
- u8 tmp_Short;
- tmp_Short = (TxHT == 1) ?
- ((tcb_desc->bUseShortGI) ? 1 : 0) :
- ((tcb_desc->bUseShortPreamble) ? 1 : 0);
- if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
- tmp_Short = 0;
- return tmp_Short;
- }
- static void tx_zero_isr(struct urb *tx_urb)
- {
- }
- /*
- * The tx procedure is just as following,
- * skb->cb will contain all the following information,
- * priority, morefrag, rate, &dev.
- * */
- short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
- tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
- tx_fwinfo_819x_usb *tx_fwinfo =
- (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
- struct usb_device *udev = priv->udev;
- int pend;
- int status;
- struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
- unsigned int idx_pipe;
- pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
- /* we are locked here so the two atomic_read and inc are executed
- * without interleaves
- * !!! For debug purpose
- */
- if (pend > MAX_TX_URB) {
- netdev_dbg(dev, "To discard skb packet!\n");
- dev_kfree_skb_any(skb);
- return -1;
- }
- tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!tx_urb) {
- dev_kfree_skb_any(skb);
- return -ENOMEM;
- }
- /* Fill Tx firmware info */
- memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
- /* DWORD 0 */
- tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
- tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
- tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
- tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
- tcb_desc);
- if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
- tx_fwinfo->AllowAggregation = 1;
- /* DWORD 1 */
- tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
- tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
- } else {
- tx_fwinfo->AllowAggregation = 0;
- /* DWORD 1 */
- tx_fwinfo->RxMF = 0;
- tx_fwinfo->RxAMD = 0;
- }
- /* Protection mode related */
- tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
- tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
- tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
- tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
- tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
- tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
- tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
- tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
- (tcb_desc->bRTSUseShortGI ? 1 : 0);
- /* Set Bandwidth and sub-channel settings. */
- if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
- if (tcb_desc->bPacketBW) {
- tx_fwinfo->TxBandwidth = 1;
- /* use duplicated mode */
- tx_fwinfo->TxSubCarrier = 0;
- } else {
- tx_fwinfo->TxBandwidth = 0;
- tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
- }
- } else {
- tx_fwinfo->TxBandwidth = 0;
- tx_fwinfo->TxSubCarrier = 0;
- }
- /* Fill Tx descriptor */
- memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
- /* DWORD 0 */
- tx_desc->LINIP = 0;
- tx_desc->CmdInit = 1;
- tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
- tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
- /*DWORD 1*/
- tx_desc->SecCAMID = 0;
- tx_desc->RATid = tcb_desc->RATRIndex;
- tx_desc->NoEnc = 1;
- tx_desc->SecType = 0x0;
- if (tcb_desc->bHwSec) {
- switch (priv->ieee80211->pairwise_key_type) {
- case KEY_TYPE_WEP40:
- case KEY_TYPE_WEP104:
- tx_desc->SecType = 0x1;
- tx_desc->NoEnc = 0;
- break;
- case KEY_TYPE_TKIP:
- tx_desc->SecType = 0x2;
- tx_desc->NoEnc = 0;
- break;
- case KEY_TYPE_CCMP:
- tx_desc->SecType = 0x3;
- tx_desc->NoEnc = 0;
- break;
- case KEY_TYPE_NA:
- tx_desc->SecType = 0x0;
- tx_desc->NoEnc = 1;
- break;
- }
- }
- tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
- tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
- tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
- tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
- /* Fill fields that are required to be initialized in
- * all of the descriptors
- */
- /* DWORD 0 */
- tx_desc->FirstSeg = 1;
- tx_desc->LastSeg = 1;
- tx_desc->OWN = 1;
- /* DWORD 2 */
- tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
- idx_pipe = 0x5;
- /* To submit bulk urb */
- usb_fill_bulk_urb(tx_urb, udev,
- usb_sndbulkpipe(udev, idx_pipe), skb->data,
- skb->len, rtl8192_tx_isr, skb);
- status = usb_submit_urb(tx_urb, GFP_ATOMIC);
- if (!status) {
- /* We need to send 0 byte packet whenever
- * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
- * been transmitted. Otherwise, it will be halt to wait for
- * another packet.
- */
- bool bSend0Byte = false;
- u8 zero = 0;
- if (udev->speed == USB_SPEED_HIGH) {
- if (skb->len > 0 && skb->len % 512 == 0)
- bSend0Byte = true;
- } else {
- if (skb->len > 0 && skb->len % 64 == 0)
- bSend0Byte = true;
- }
- if (bSend0Byte) {
- tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
- if (!tx_urb_zero) {
- RT_TRACE(COMP_ERR,
- "can't alloc urb for zero byte\n");
- return -ENOMEM;
- }
- usb_fill_bulk_urb(tx_urb_zero, udev,
- usb_sndbulkpipe(udev, idx_pipe),
- &zero, 0, tx_zero_isr, dev);
- status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
- if (status) {
- RT_TRACE(COMP_ERR,
- "Error TX URB for zero byte %d, error %d",
- atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
- status);
- return -1;
- }
- }
- dev->trans_start = jiffies;
- atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
- return 0;
- }
- RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
- atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
- status);
- return -1;
- }
- static short rtl8192_usb_initendpoints(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
- GFP_KERNEL);
- if (priv->rx_urb == NULL)
- return -ENOMEM;
- #ifndef JACKSON_NEW_RX
- for (i = 0; i < (MAX_RX_URB + 1); i++) {
- priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
- priv->rx_urb[i]->transfer_buffer =
- kmalloc(RX_URB_SIZE, GFP_KERNEL);
- priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
- }
- #endif
- #ifdef THOMAS_BEACON
- {
- long align = 0;
- void *oldaddr, *newaddr;
- priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
- priv->oldaddr = kmalloc(16, GFP_KERNEL);
- if (!priv->oldaddr)
- return -ENOMEM;
- oldaddr = priv->oldaddr;
- align = ((long)oldaddr) & 3;
- if (align) {
- newaddr = oldaddr + 4 - align;
- priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
- } else {
- newaddr = oldaddr;
- priv->rx_urb[16]->transfer_buffer_length = 16;
- }
- priv->rx_urb[16]->transfer_buffer = newaddr;
- }
- #endif
- memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
- priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
- GFP_KERNEL);
- if (!priv->pp_rxskb) {
- kfree(priv->rx_urb);
- priv->pp_rxskb = NULL;
- priv->rx_urb = NULL;
- DMESGE("Endpoint Alloc Failure");
- return -ENOMEM;
- }
- netdev_dbg(dev, "End of initendpoints\n");
- return 0;
- }
- #ifdef THOMAS_BEACON
- static void rtl8192_usb_deleteendpoints(struct net_device *dev)
- {
- int i;
- struct r8192_priv *priv = ieee80211_priv(dev);
- if (priv->rx_urb) {
- for (i = 0; i < (MAX_RX_URB + 1); i++) {
- usb_kill_urb(priv->rx_urb[i]);
- usb_free_urb(priv->rx_urb[i]);
- }
- kfree(priv->rx_urb);
- priv->rx_urb = NULL;
- }
- kfree(priv->oldaddr);
- priv->oldaddr = NULL;
- kfree(priv->pp_rxskb);
- priv->pp_rxskb = NULL;
- }
- #else
- void rtl8192_usb_deleteendpoints(struct net_device *dev)
- {
- int i;
- struct r8192_priv *priv = ieee80211_priv(dev);
- #ifndef JACKSON_NEW_RX
- if (priv->rx_urb) {
- for (i = 0; i < (MAX_RX_URB + 1); i++) {
- usb_kill_urb(priv->rx_urb[i]);
- kfree(priv->rx_urb[i]->transfer_buffer);
- usb_free_urb(priv->rx_urb[i]);
- }
- kfree(priv->rx_urb);
- priv->rx_urb = NULL;
- }
- #else
- kfree(priv->rx_urb);
- priv->rx_urb = NULL;
- kfree(priv->oldaddr);
- priv->oldaddr = NULL;
- kfree(priv->pp_rxskb);
- priv->pp_rxskb = 0;
- #endif
- }
- #endif
- static void rtl8192_update_ratr_table(struct net_device *dev);
- static void rtl8192_link_change(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_device *ieee = priv->ieee80211;
- if (ieee->state == IEEE80211_LINKED) {
- rtl8192_net_update(dev);
- rtl8192_update_ratr_table(dev);
- /* Add this as in pure N mode, wep encryption will use software
- * way, but there is no chance to set this as wep will not set
- * group key in wext.
- */
- if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
- KEY_TYPE_WEP104 == ieee->pairwise_key_type)
- EnableHWSecurityConfig8192(dev);
- }
- /*update timing params*/
- if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
- u32 reg = 0;
- read_nic_dword(dev, RCR, ®);
- if (priv->ieee80211->state == IEEE80211_LINKED)
- priv->ReceiveConfig = reg |= RCR_CBSSID;
- else
- priv->ReceiveConfig = reg &= ~RCR_CBSSID;
- write_nic_dword(dev, RCR, reg);
- }
- }
- static struct ieee80211_qos_parameters def_qos_parameters = {
- {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
- {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
- {2, 2, 2, 2},/* aifs */
- {0, 0, 0, 0},/* flags */
- {0, 0, 0, 0} /* tx_op_limit */
- };
- static void rtl8192_update_beacon(struct work_struct *work)
- {
- struct r8192_priv *priv = container_of(work, struct r8192_priv,
- update_beacon_wq.work);
- struct net_device *dev = priv->ieee80211->dev;
- struct ieee80211_device *ieee = priv->ieee80211;
- struct ieee80211_network *net = &ieee->current_network;
- if (ieee->pHTInfo->bCurrentHTSupport)
- HTUpdateSelfAndPeerSetting(ieee, net);
- ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
- net->bssht.bdRT2RTLongSlotTime;
- rtl8192_update_cap(dev, net->capability);
- }
- /*
- * background support to run QoS activate functionality
- */
- static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
- EDCAPARA_VI, EDCAPARA_VO};
- static void rtl8192_qos_activate(struct work_struct *work)
- {
- struct r8192_priv *priv = container_of(work, struct r8192_priv,
- qos_activate);
- struct net_device *dev = priv->ieee80211->dev;
- struct ieee80211_qos_parameters *qos_parameters =
- &priv->ieee80211->current_network.qos_data.parameters;
- u8 mode = priv->ieee80211->current_network.mode;
- u32 u1bAIFS;
- u32 u4bAcParam;
- u32 op_limit;
- u32 cw_max;
- u32 cw_min;
- int i;
- mutex_lock(&priv->mutex);
- if (priv->ieee80211->state != IEEE80211_LINKED)
- goto success;
- RT_TRACE(COMP_QOS,
- "qos active process with associate response received\n");
- /* It better set slot time at first
- *
- * For we just support b/g mode at present, let the slot time at
- * 9/20 selection
- *
- * update the ac parameter to related registers
- */
- for (i = 0; i < QOS_QUEUE_NUM; i++) {
- /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
- u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
- u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
- op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
- op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
- cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
- cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
- cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
- cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
- u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
- write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
- }
- success:
- mutex_unlock(&priv->mutex);
- }
- static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
- int active_network,
- struct ieee80211_network *network)
- {
- int ret = 0;
- u32 size = sizeof(struct ieee80211_qos_parameters);
- if (priv->ieee80211->state != IEEE80211_LINKED)
- return ret;
- if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
- return ret;
- if (network->flags & NETWORK_HAS_QOS_MASK) {
- if (active_network &&
- (network->flags & NETWORK_HAS_QOS_PARAMETERS))
- network->qos_data.active = network->qos_data.supported;
- if ((network->qos_data.active == 1) && (active_network == 1) &&
- (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
- (network->qos_data.old_param_count !=
- network->qos_data.param_count)) {
- network->qos_data.old_param_count =
- network->qos_data.param_count;
- queue_work(priv->priv_wq, &priv->qos_activate);
- RT_TRACE(COMP_QOS,
- "QoS parameters change call qos_activate\n");
- }
- } else {
- memcpy(&priv->ieee80211->current_network.qos_data.parameters,
- &def_qos_parameters, size);
- if ((network->qos_data.active == 1) && (active_network == 1)) {
- queue_work(priv->priv_wq, &priv->qos_activate);
- RT_TRACE(COMP_QOS,
- "QoS was disabled call qos_activate\n");
- }
- network->qos_data.active = 0;
- network->qos_data.supported = 0;
- }
- return 0;
- }
- /* handle and manage frame from beacon and probe response */
- static int rtl8192_handle_beacon(struct net_device *dev,
- struct ieee80211_beacon *beacon,
- struct ieee80211_network *network)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- rtl8192_qos_handle_probe_response(priv, 1, network);
- queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
- return 0;
- }
- /*
- * handling the beaconing responses. if we get different QoS setting
- * off the network from the associated setting, adjust the QoS
- * setting
- */
- static int rtl8192_qos_association_resp(struct r8192_priv *priv,
- struct ieee80211_network *network)
- {
- unsigned long flags;
- u32 size = sizeof(struct ieee80211_qos_parameters);
- int set_qos_param = 0;
- if ((priv == NULL) || (network == NULL))
- return 0;
- if (priv->ieee80211->state != IEEE80211_LINKED)
- return 0;
- if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
- return 0;
- spin_lock_irqsave(&priv->ieee80211->lock, flags);
- if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
- memcpy(&priv->ieee80211->current_network.qos_data.parameters,
- &network->qos_data.parameters,
- sizeof(struct ieee80211_qos_parameters));
- priv->ieee80211->current_network.qos_data.active = 1;
- set_qos_param = 1;
- /* update qos parameter for current network */
- priv->ieee80211->current_network.qos_data.old_param_count =
- priv->ieee80211->current_network.qos_data.param_count;
- priv->ieee80211->current_network.qos_data.param_count =
- network->qos_data.param_count;
- } else {
- memcpy(&priv->ieee80211->current_network.qos_data.parameters,
- &def_qos_parameters, size);
- priv->ieee80211->current_network.qos_data.active = 0;
- priv->ieee80211->current_network.qos_data.supported = 0;
- set_qos_param = 1;
- }
- spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
- RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
- network->flags,
- priv->ieee80211->current_network.qos_data.active);
- if (set_qos_param == 1)
- queue_work(priv->priv_wq, &priv->qos_activate);
- return 0;
- }
- static int rtl8192_handle_assoc_response(
- struct net_device *dev,
- struct ieee80211_assoc_response_frame *resp,
- struct ieee80211_network *network)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- rtl8192_qos_association_resp(priv, network);
- return 0;
- }
- static void rtl8192_update_ratr_table(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_device *ieee = priv->ieee80211;
- u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
- u32 ratr_value = 0;
- u8 rate_index = 0;
- rtl8192_config_rate(dev, (u16 *)(&ratr_value));
- ratr_value |= (*(u16 *)(pMcsRate)) << 12;
- switch (ieee->mode) {
- case IEEE_A:
- ratr_value &= 0x00000FF0;
- break;
- case IEEE_B:
- ratr_value &= 0x0000000F;
- break;
- case IEEE_G:
- ratr_value &= 0x00000FF7;
- break;
- case IEEE_N_24G:
- case IEEE_N_5G:
- if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
- ratr_value &= 0x0007F007;
- } else {
- if (priv->rf_type == RF_1T2R)
- ratr_value &= 0x000FF007;
- else
- ratr_value &= 0x0F81F007;
- }
- break;
- default:
- break;
- }
- ratr_value &= 0x0FFFFFFF;
- if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
- ratr_value |= 0x80000000;
- else if (!ieee->pHTInfo->bCurTxBW40MHz &&
- ieee->pHTInfo->bCurShortGI20MHz)
- ratr_value |= 0x80000000;
- write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
- write_nic_byte(dev, UFWP, 1);
- }
- static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
- static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
- static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct ieee80211_device *ieee = priv->ieee80211;
- struct ieee80211_network *network = &ieee->current_network;
- int wpa_ie_len = ieee->wpa_ie_len;
- struct ieee80211_crypt_data *crypt;
- int encrypt;
- crypt = ieee->crypt[ieee->tx_keyidx];
- /* we use connecting AP's capability instead of only security config
- * on our driver to distinguish whether it should use N mode or G mode
- */
- encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
- (ieee->host_encrypt && crypt && crypt->ops &&
- (0 == strcmp(crypt->ops->name, "WEP")));
- /* simply judge */
- if (encrypt && (wpa_ie_len == 0)) {
- /* wep encryption, no N mode setting */
- return false;
- } else if ((wpa_ie_len != 0)) {
- /* parse pairwise key type */
- if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
- return true;
- else
- return false;
- } else {
- return true;
- }
- return true;
- }
- static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- return priv->ieee80211->bHalfWirelessN24GMode;
- }
- static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
- {
- struct ieee80211_device *ieee = priv->ieee80211;
- /* We do not consider set support rate for ABG mode, only
- * HT MCS rate is set here.
- */
- if (ieee->mode == WIRELESS_MODE_N_24G ||
- ieee->mode == WIRELESS_MODE_N_5G)
- memcpy(ieee->Regdot11HTOperationalRateSet,
- ieee->RegHTSuppRateSet, 16);
- else
- memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
- }
- static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 ret = 0;
- switch (priv->rf_chip) {
- case RF_8225:
- case RF_8256:
- case RF_PSEUDO_11N:
- ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
- break;
- case RF_8258:
- ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
- break;
- default:
- ret = WIRELESS_MODE_B;
- break;
- }
- return ret;
- }
- static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
- if (wireless_mode == WIRELESS_MODE_AUTO ||
- (wireless_mode & bSupportMode) == 0) {
- if (bSupportMode & WIRELESS_MODE_N_24G) {
- wireless_mode = WIRELESS_MODE_N_24G;
- } else if (bSupportMode & WIRELESS_MODE_N_5G) {
- wireless_mode = WIRELESS_MODE_N_5G;
- } else if ((bSupportMode & WIRELESS_MODE_A)) {
- wireless_mode = WIRELESS_MODE_A;
- } else if ((bSupportMode & WIRELESS_MODE_G)) {
- wireless_mode = WIRELESS_MODE_G;
- } else if ((bSupportMode & WIRELESS_MODE_B)) {
- wireless_mode = WIRELESS_MODE_B;
- } else {
- RT_TRACE(COMP_ERR,
- "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
- __func__, bSupportMode);
- wireless_mode = WIRELESS_MODE_B;
- }
- }
- #ifdef TO_DO_LIST
- /* TODO: this function doesn't work well at this time,
- * we should wait for FPGA
- */
- ActUpdateChannelAccessSetting(
- pAdapter, pHalData->CurrentWirelessMode,
- &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
- #endif
- priv->ieee80211->mode = wireless_mode;
- if (wireless_mode == WIRELESS_MODE_N_24G ||
- wireless_mode == WIRELESS_MODE_N_5G)
- priv->ieee80211->pHTInfo->bEnableHT = 1;
- else
- priv->ieee80211->pHTInfo->bEnableHT = 0;
- RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
- rtl8192_refresh_supportrate(priv);
- }
- /* init priv variables here. only non_zero value should be initialized here. */
- static void rtl8192_init_priv_variable(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 i;
- priv->card_8192 = NIC_8192U;
- priv->chan = 1; /* set to channel 1 */
- priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
- priv->ieee80211->iw_mode = IW_MODE_INFRA;
- priv->ieee80211->ieee_up = 0;
- priv->retry_rts = DEFAULT_RETRY_RTS;
- priv->retry_data = DEFAULT_RETRY_DATA;
- priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
- priv->ieee80211->rate = 110; /* 11 mbps */
- priv->ieee80211->short_slot = 1;
- priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
- priv->CckPwEnl = 6;
- /* for silent reset */
- priv->IrpPendingCount = 1;
- priv->ResetProgress = RESET_TYPE_NORESET;
- priv->bForcedSilentReset = false;
- priv->bDisableNormalResetCheck = false;
- priv->force_reset = false;
- /* we don't use FW read/write RF until stable firmware is available. */
- priv->ieee80211->FwRWRF = 0;
- priv->ieee80211->current_network.beacon_interval =
- DEFAULT_BEACONINTERVAL;
- priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
- IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
- IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
- IEEE_SOFTMAC_BEACONS;
- priv->ieee80211->active_scan = 1;
- priv->ieee80211->modulation =
- IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
- priv->ieee80211->host_encrypt = 1;
- priv->ieee80211->host_decrypt = 1;
- priv->ieee80211->start_send_beacons = NULL;
- priv->ieee80211->stop_send_beacons = NULL;
- priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
- priv->ieee80211->set_chan = rtl8192_set_chan;
- priv->ieee80211->link_change = rtl8192_link_change;
- priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
- priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
- priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
- priv->ieee80211->init_wmmparam_flag = 0;
- priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
- priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
- priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
- priv->ieee80211->qos_support = 1;
- priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
- priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
- priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
- priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
- priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
- GetHalfNmodeSupportByAPs819xUsb;
- priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
- priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
- priv->card_type = USB;
- #ifdef TO_DO_LIST
- if (Adapter->bInHctTest) {
- pHalData->ShortRetryLimit = 7;
- pHalData->LongRetryLimit = 7;
- }
- #endif
- priv->ShortRetryLimit = 0x30;
- priv->LongRetryLimit = 0x30;
- priv->EarlyRxThreshold = 7;
- priv->enable_gpio0 = 0;
- priv->TransmitConfig =
- /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
- (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
- /* Short retry limit */
- (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
- /* Long retry limit */
- (priv->LongRetryLimit << TCR_LRL_OFFSET) |
- /* FALSE: HW provides PLCP length and LENGEXT
- * TRUE: SW provides them
- */
- (false ? TCR_SAT : 0);
- #ifdef TO_DO_LIST
- if (Adapter->bInHctTest)
- pHalData->ReceiveConfig =
- pHalData->CSMethod |
- /* accept management/data */
- RCR_AMF | RCR_ADF |
- /* accept control frame for SW
- * AP needs PS-poll
- */
- RCR_ACF |
- /* accept BC/MC/UC */
- RCR_AB | RCR_AM | RCR_APM |
- /* accept ICV/CRC error
- * packet
- */
- RCR_AICV | RCR_ACRC32 |
- /* Max DMA Burst Size per Tx
- * DMA Burst, 7: unlimited.
- */
- ((u32)7 << RCR_MXDMA_OFFSET) |
- /* Rx FIFO Threshold,
- * 7: No Rx threshold.
- */
- (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
- (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
- else
- #endif
- priv->ReceiveConfig =
- /* accept management/data */
- RCR_AMF | RCR_ADF |
- /* accept control frame for SW AP needs PS-poll */
- RCR_ACF |
- /* accept BC/MC/UC */
- RCR_AB | RCR_AM | RCR_APM |
- /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
- ((u32)7 << RCR_MXDMA_OFFSET) |
- /* Rx FIFO Threshold, 7: No Rx threshold. */
- (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
- (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
- priv->AcmControl = 0;
- priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
- /* rx related queue */
- skb_queue_head_init(&priv->rx_queue);
- skb_queue_head_init(&priv->skb_queue);
- /* Tx related queue */
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
- priv->rf_set_chan = rtl8192_phy_SwChnl;
- }
- /* init lock here */
- static void rtl8192_init_priv_lock(struct r8192_priv *priv)
- {
- spin_lock_init(&priv->tx_lock);
- spin_lock_init(&priv->irq_lock);
- sema_init(&priv->wx_sem, 1);
- sema_init(&priv->rf_sem, 1);
- mutex_init(&priv->mutex);
- }
- static void rtl819x_watchdog_wqcallback(struct work_struct *work);
- static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
- /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
- #define DRV_NAME "wlan0"
- static void rtl8192_init_priv_task(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- priv->priv_wq = create_workqueue(DRV_NAME);
- INIT_WORK(&priv->reset_wq, rtl8192_restart);
- INIT_DELAYED_WORK(&priv->watch_dog_wq,
- rtl819x_watchdog_wqcallback);
- INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
- dm_txpower_trackingcallback);
- INIT_DELAYED_WORK(&priv->rfpath_check_wq,
- dm_rf_pathcheck_workitemcallback);
- INIT_DELAYED_WORK(&priv->update_beacon_wq,
- rtl8192_update_beacon);
- INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
- InitialGainOperateWorkItemCallBack);
- INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
- tasklet_init(&priv->irq_rx_tasklet,
- (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
- (unsigned long)priv);
- }
- static void rtl8192_get_eeprom_size(struct net_device *dev)
- {
- u16 curCR = 0;
- struct r8192_priv *priv = ieee80211_priv(dev);
- RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
- read_nic_word_E(dev, EPROM_CMD, &curCR);
- RT_TRACE(COMP_EPROM,
- "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
- /* whether need I consider BIT(5?) */
- priv->epromtype =
- (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
- RT_TRACE(COMP_EPROM,
- "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
- }
- /* used to swap endian. as ntohl & htonl are not necessary
- * to swap endian, so use this instead.
- */
- static inline u16 endian_swap(u16 *data)
- {
- u16 tmp = *data;
- *data = (tmp >> 8) | (tmp << 8);
- return *data;
- }
- static void rtl8192_read_eeprom_info(struct net_device *dev)
- {
- u16 wEPROM_ID = 0;
- u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
- u8 bLoad_From_EEPOM = false;
- struct r8192_priv *priv = ieee80211_priv(dev);
- u16 tmpValue = 0;
- int i;
- RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
- wEPROM_ID = eprom_read(dev, 0); /* first read EEPROM ID out; */
- RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
- if (wEPROM_ID != RTL8190_EEPROM_ID)
- RT_TRACE(COMP_ERR,
- "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
- wEPROM_ID, RTL8190_EEPROM_ID);
- else
- bLoad_From_EEPOM = true;
- if (bLoad_From_EEPOM) {
- tmpValue = eprom_read(dev, EEPROM_VID >> 1);
- priv->eeprom_vid = endian_swap(&tmpValue);
- priv->eeprom_pid = eprom_read(dev, EEPROM_PID >> 1);
- tmpValue = eprom_read(dev, EEPROM_ChannelPlan >> 1);
- priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
- priv->btxpowerdata_readfromEEPORM = true;
- priv->eeprom_CustomerID =
- eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
- } else {
- priv->eeprom_vid = 0;
- priv->eeprom_pid = 0;
- priv->card_8192_version = VERSION_819xU_B;
- priv->eeprom_ChannelPlan = 0;
- priv->eeprom_CustomerID = 0;
- }
- RT_TRACE(COMP_EPROM,
- "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
- priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
- priv->eeprom_ChannelPlan);
- /* set channelplan from eeprom */
- priv->ChannelPlan = priv->eeprom_ChannelPlan;
- if (bLoad_From_EEPOM) {
- int i;
- for (i = 0; i < 6; i += 2) {
- u16 tmp = 0;
- tmp = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
- *(u16 *)(&dev->dev_addr[i]) = tmp;
- }
- } else {
- memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
- /* should I set IDR0 here? */
- }
- RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
- priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
- priv->rf_chip = RF_8256;
- if (priv->card_8192_version == (u8)VERSION_819xU_A) {
- /* read Tx power gain offset of legacy OFDM to HT rate */
- if (bLoad_From_EEPOM)
- priv->EEPROMTxPowerDiff = (eprom_read(dev, (EEPROM_TxPowerDiff >> 1)) & 0xff00) >> 8;
- else
- priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
- RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
- /* read ThermalMeter from EEPROM */
- if (bLoad_From_EEPOM)
- priv->EEPROMThermalMeter = (u8)(eprom_read(dev, (EEPROM_ThermalMeter >> 1)) & 0x00ff);
- else
- priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
- RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
- /* for tx power track */
- priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
- /* read antenna tx power offset of B/C/D to A from EEPROM */
- if (bLoad_From_EEPOM)
- priv->EEPROMPwDiff = (eprom_read(dev, (EEPROM_PwDiff >> 1)) & 0x0f00) >> 8;
- else
- priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
- RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
- /* Read CrystalCap from EEPROM */
- if (bLoad_From_EEPOM)
- priv->EEPROMCrystalCap = (eprom_read(dev, (EEPROM_CrystalCap >> 1)) & 0x0f);
- else
- priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
- RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
- /* get per-channel Tx power level */
- if (bLoad_From_EEPOM)
- priv->EEPROM_Def_Ver = (eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1)) & 0xff00) >> 8;
- else
- priv->EEPROM_Def_Ver = 1;
- RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
- if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
- int i;
- if (bLoad_From_EEPOM)
- priv->EEPROMTxPowerLevelCCK = (eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1)) & 0xff) >> 8;
- else
- priv->EEPROMTxPowerLevelCCK = 0x10;
- RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
- for (i = 0; i < 3; i++) {
- if (bLoad_From_EEPOM) {
- tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
- if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
- tmpValue = tmpValue & 0x00ff;
- else
- tmpValue = (tmpValue & 0xff00) >> 8;
- } else {
- tmpValue = 0x10;
- }
- priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
- RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
- }
- } else if (priv->EEPROM_Def_Ver == 1) {
- if (bLoad_From_EEPOM) {
- tmpValue = eprom_read(dev,
- EEPROM_TxPwIndex_CCK_V1 >> 1);
- tmpValue = (tmpValue & 0xff00) >> 8;
- } else {
- tmpValue = 0x10;
- }
- priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
- if (bLoad_From_EEPOM)
- tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
- else
- tmpValue = 0x1010;
- *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
- if (bLoad_From_EEPOM)
- tmpValue = eprom_read(dev,
- EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
- else
- tmpValue = 0x1010;
- *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
- if (bLoad_From_EEPOM)
- tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
- else
- tmpValue = 0x10;
- priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
- } /* endif EEPROM_Def_Ver == 1 */
- /* update HAL variables */
- for (i = 0; i < 14; i++) {
- if (i <= 3)
- priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
- else if (i >= 4 && i <= 9)
- priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
- else
- priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
- }
- for (i = 0; i < 14; i++) {
- if (priv->EEPROM_Def_Ver == 0) {
- if (i <= 3)
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
- else if (i >= 4 && i <= 9)
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
- else
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
- } else if (priv->EEPROM_Def_Ver == 1) {
- if (i <= 3)
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
- else if (i >= 4 && i <= 9)
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
- else
- priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
- }
- }
- priv->TxPowerDiff = priv->EEPROMPwDiff;
- /* Antenna B gain offset to antenna A, bit0~3 */
- priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
- /* Antenna C gain offset to antenna A, bit4~7 */
- priv->AntennaTxPwDiff[1] =
- (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
- /* CrystalCap, bit12~15 */
- priv->CrystalCap = priv->EEPROMCrystalCap;
- /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
- * 92U does not enable TX power tracking.
- */
- priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
- } /* end if VersionID == VERSION_819xU_A */
- /* for dlink led */
- switch (priv->eeprom_CustomerID) {
- case EEPROM_CID_RUNTOP:
- priv->CustomerID = RT_CID_819x_RUNTOP;
- break;
- case EEPROM_CID_DLINK:
- priv->CustomerID = RT_CID_DLINK;
- break;
- default:
- priv->CustomerID = RT_CID_DEFAULT;
- break;
- }
- switch (priv->CustomerID) {
- case RT_CID_819x_RUNTOP:
- priv->LedStrategy = SW_LED_MODE2;
- break;
- case RT_CID_DLINK:
- priv->LedStrategy = SW_LED_MODE4;
- break;
- default:
- priv->LedStrategy = SW_LED_MODE0;
- break;
- }
- if (priv->rf_type == RF_1T2R)
- RT_TRACE(COMP_EPROM, "\n1T2R config\n");
- else
- RT_TRACE(COMP_EPROM, "\n2T4R config\n");
- /* We can only know RF type in the function. So we have to init
- * DIG RATR table again.
- */
- init_rate_adaptive(dev);
- RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
- }
- static short rtl8192_get_channel_map(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
- netdev_err(dev,
- "rtl8180_init: Error channel plan! Set to default.\n");
- priv->ChannelPlan = 0;
- }
- RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
- rtl819x_set_channel_map(priv->ChannelPlan, priv);
- return 0;
- }
- static short rtl8192_init(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- memset(&(priv->stats), 0, sizeof(struct Stats));
- memset(priv->txqueue_to_outpipemap, 0, 9);
- #ifdef PIPE12
- {
- int i = 0;
- u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
- memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
- }
- #else
- {
- u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
- memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
- }
- #endif
- rtl8192_init_priv_variable(dev);
- rtl8192_init_priv_lock(priv);
- rtl8192_init_priv_task(dev);
- rtl8192_get_eeprom_size(dev);
- rtl8192_read_eeprom_info(dev);
- rtl8192_get_channel_map(dev);
- init_hal_dm(dev);
- setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
- (unsigned long)dev);
- if (rtl8192_usb_initendpoints(dev) != 0) {
- DMESG("Endopoints initialization failed");
- return -ENOMEM;
- }
- return 0;
- }
- /******************************************************************************
- *function: This function actually only set RRSR, RATR and BW_OPMODE registers
- * not to do all the hw config as its name says
- * input: net_device dev
- * output: none
- * return: none
- * notice: This part need to modified according to the rate set we filtered
- * ****************************************************************************/
- static void rtl8192_hwconfig(struct net_device *dev)
- {
- u32 regRATR = 0, regRRSR = 0;
- u8 regBwOpMode = 0, regTmp = 0;
- struct r8192_priv *priv = ieee80211_priv(dev);
- u32 ratr_value = 0;
- /* Set RRSR, RATR, and BW_OPMODE registers */
- switch (priv->ieee80211->mode) {
- case WIRELESS_MODE_B:
- regBwOpMode = BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_CCK;
- regRRSR = RATE_ALL_CCK;
- break;
- case WIRELESS_MODE_A:
- regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_OFDM_AG;
- regRRSR = RATE_ALL_OFDM_AG;
- break;
- case WIRELESS_MODE_G:
- regBwOpMode = BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- break;
- case WIRELESS_MODE_AUTO:
- #ifdef TO_DO_LIST
- if (Adapter->bInHctTest) {
- regBwOpMode = BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- } else
- #endif
- {
- regBwOpMode = BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
- RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
- regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- }
- break;
- case WIRELESS_MODE_N_24G:
- /* It support CCK rate by default. CCK rate will be filtered
- * out only when associated AP does not support it.
- */
- regBwOpMode = BW_OPMODE_20MHZ;
- regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
- RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
- regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
- break;
- case WIRELESS_MODE_N_5G:
- regBwOpMode = BW_OPMODE_5G;
- regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
- RATE_ALL_OFDM_2SS;
- regRRSR = RATE_ALL_OFDM_AG;
- break;
- }
- write_nic_byte(dev, BW_OPMODE, regBwOpMode);
- ratr_value = regRATR;
- if (priv->rf_type == RF_1T2R)
- ratr_value &= ~(RATE_ALL_OFDM_2SS);
- write_nic_dword(dev, RATR0, ratr_value);
- write_nic_byte(dev, UFWP, 1);
- read_nic_byte(dev, 0x313, ®Tmp);
- regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
- write_nic_dword(dev, RRSR, regRRSR);
- /* Set Retry Limit here */
- write_nic_word(dev, RETRY_LIMIT,
- priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
- priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
- /* Set Contention Window here */
- /* Set Tx AGC */
- /* Set Tx Antenna including Feedback control */
- /* Set Auto Rate fallback control */
- }
- /* InitializeAdapter and PhyCfg */
- static bool rtl8192_adapter_start(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u32 dwRegRead = 0;
- bool init_status = true;
- u8 SECR_value = 0x0;
- u8 tmp;
- RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
- priv->Rf_Mode = RF_OP_By_SW_3wire;
- /* for ASIC power on sequence */
- write_nic_byte_E(dev, 0x5f, 0x80);
- mdelay(50);
- write_nic_byte_E(dev, 0x5f, 0xf0);
- write_nic_byte_E(dev, 0x5d, 0x00);
- write_nic_byte_E(dev, 0x5e, 0x80);
- write_nic_byte(dev, 0x17, 0x37);
- mdelay(10);
- priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
- /* config CPUReset Register */
- /* Firmware Reset or not? */
- read_nic_dword(dev, CPU_GEN, &dwRegRead);
- if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
- dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
- else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
- dwRegRead |= CPU_GEN_FIRMWARE_RESET;
- else
- RT_TRACE(COMP_ERR,
- "ERROR in %s(): undefined firmware state(%d)\n",
- __func__, priv->pFirmware->firmware_status);
- write_nic_dword(dev, CPU_GEN, dwRegRead);
- /* config BB. */
- rtl8192_BBConfig(dev);
- /* Loopback mode or not */
- priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
- read_nic_dword(dev, CPU_GEN, &dwRegRead);
- if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
- dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
- CPU_GEN_NO_LOOPBACK_SET;
- else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
- dwRegRead |= CPU_CCK_LOOPBACK;
- else
- RT_TRACE(COMP_ERR,
- "Serious error in %s(): wrong loopback mode setting(%d)\n",
- __func__, priv->LoopbackMode);
- write_nic_dword(dev, CPU_GEN, dwRegRead);
- /* after reset cpu, we need wait for a seconds to write in register. */
- udelay(500);
- /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
- read_nic_byte_E(dev, 0x5f, &tmp);
- write_nic_byte_E(dev, 0x5f, tmp | 0x20);
- /* Set Hardware */
- rtl8192_hwconfig(dev);
- /* turn on Tx/Rx */
- write_nic_byte(dev, CMDR, CR_RE | CR_TE);
- /* set IDR0 here */
- write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
- write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
- /* set RCR */
- write_nic_dword(dev, RCR, priv->ReceiveConfig);
- /* Initialize Number of Reserved Pages in Firmware Queue */
- write_nic_dword(dev, RQPN1,
- NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
- NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
- NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
- NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
- write_nic_dword(dev, RQPN2,
- NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
- NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
- write_nic_dword(dev, RQPN3,
- APPLIED_RESERVED_QUEUE_IN_FW |
- NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
- write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
- /* Set AckTimeout */
- /* TODO: (it value is only for FPGA version). need to be changed!! */
- write_nic_byte(dev, ACK_TIMEOUT, 0x30);
- if (priv->ResetProgress == RESET_TYPE_NORESET)
- rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
- if (priv->ResetProgress == RESET_TYPE_NORESET) {
- CamResetAllEntry(dev);
- SECR_value |= SCR_TxEncEnable;
- SECR_value |= SCR_RxDecEnable;
- SECR_value |= SCR_NoSKMC;
- write_nic_byte(dev, SECR, SECR_value);
- }
- /* Beacon related */
- write_nic_word(dev, ATIMWND, 2);
- write_nic_word(dev, BCN_INTERVAL, 100);
- #define DEFAULT_EDCA 0x005e4332
- {
- int i;
- for (i = 0; i < QOS_QUEUE_NUM; i++)
- write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
- }
- rtl8192_phy_configmac(dev);
- if (priv->card_8192_version == (u8)VERSION_819xU_A) {
- rtl8192_phy_getTxPower(dev);
- rtl8192_phy_setTxPower(dev, priv->chan);
- }
- /* Firmware download */
- init_status = init_firmware(dev);
- if (!init_status) {
- RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
- __func__);
- return init_status;
- }
- RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
- #ifdef TO_DO_LIST
- if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
- if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
- RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
- ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
- MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
- /* Those actions will be discard in MgntActSet_RF_State
- * because of the same state
- */
- for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
- PHY_SetRFReg(Adapter,
- (RF90_RADIO_PATH_E)eRFPath,
- 0x4, 0xC00, 0x0);
- } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
- /* H/W or S/W RF OFF before sleep. */
- RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
- ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
- pMgntInfo->RfOffReason));
- MgntActSet_RF_State(Adapter,
- eRfOff,
- pMgntInfo->RfOffReason);
- } else {
- pHalData->eRFPowerState = eRfOn;
- pMgntInfo->RfOffReason = 0;
- RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
- ("InitializeAdapter819xUsb(): RF is on ----------\n"));
- }
- } else {
- if (pHalData->eRFPowerState == eRfOff) {
- MgntActSet_RF_State(Adapter,
- eRfOff,
- pMgntInfo->RfOffReason);
- /* Those actions will be discard in MgntActSet_RF_State
- * because of the same state
- */
- for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
- PHY_SetRFReg(Adapter,
- (RF90_RADIO_PATH_E)eRFPath,
- 0x4, 0xC00, 0x0);
- }
- }
- #endif
- /* config RF. */
- if (priv->ResetProgress == RESET_TYPE_NORESET) {
- rtl8192_phy_RFConfig(dev);
- RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
- }
- if (priv->ieee80211->FwRWRF)
- /* We can force firmware to do RF-R/W */
- priv->Rf_Mode = RF_OP_By_FW;
- else
- priv->Rf_Mode = RF_OP_By_SW_3wire;
- rtl8192_phy_updateInitGain(dev);
- /*--set CCK and OFDM Block "ON"--*/
- rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
- rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
- if (priv->ResetProgress == RESET_TYPE_NORESET) {
- /* if D or C cut */
- u8 tmpvalue;
- read_nic_byte(dev, 0x301, &tmpvalue);
- if (tmpvalue == 0x03) {
- priv->bDcut = true;
- RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
- } else {
- priv->bDcut = false;
- RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
- }
- dm_initialize_txpower_tracking(dev);
- if (priv->bDcut) {
- u32 i, TempCCk;
- u32 tmpRegA = rtl8192_QueryBBReg(dev,
- rOFDM0_XATxIQImbalance,
- bMaskDWord);
- for (i = 0; i < TxBBGainTableLength; i++) {
- if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
- priv->rfa_txpowertrackingindex = (u8)i;
- priv->rfa_txpowertrackingindex_real =
- (u8)i;
- priv->rfa_txpowertracking_default =
- priv->rfa_txpowertrackingindex;
- break;
- }
- }
- TempCCk = rtl8192_QueryBBReg(dev,
- rCCK0_TxFilter1,
- bMaskByte2);
- for (i = 0; i < CCKTxBBGainTableLength; i++) {
- if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
- priv->cck_present_attentuation_20Mdefault = (u8)i;
- break;
- }
- }
- priv->cck_present_attentuation_40Mdefault = 0;
- priv->cck_present_attentuation_difference = 0;
- priv->cck_present_attentuation =
- priv->cck_present_attentuation_20Mdefault;
- }
- }
- write_nic_byte(dev, 0x87, 0x0);
- return init_status;
- }
- /* this configures registers for beacon tx and enables it via
- * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
- * be used to stop beacon transmission
- */
- /***************************************************************************
- -------------------------------NET STUFF---------------------------
- ***************************************************************************/
- static struct net_device_stats *rtl8192_stats(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- return &priv->ieee80211->stats;
- }
- static bool HalTxCheckStuck819xUsb(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u16 RegTxCounter;
- bool bStuck = false;
- read_nic_word(dev, 0x128, &RegTxCounter);
- RT_TRACE(COMP_RESET,
- "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
- RegTxCounter, priv->TxCounter);
- if (priv->TxCounter == RegTxCounter)
- bStuck = true;
- priv->TxCounter = RegTxCounter;
- return bStuck;
- }
- /*
- * <Assumption: RT_TX_SPINLOCK is acquired.>
- * First added: 2006.11.19 by emily
- */
- static RESET_TYPE TxCheckStuck(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 QueueID;
- bool bCheckFwTxCnt = false;
- /* Decide such threshold according to current power save mode */
- for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
- if (QueueID == TXCMD_QUEUE)
- continue;
- if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
- continue;
- bCheckFwTxCnt = true;
- }
- if (bCheckFwTxCnt) {
- if (HalTxCheckStuck819xUsb(dev)) {
- RT_TRACE(COMP_RESET,
- "TxCheckStuck(): Fw indicates no Tx condition!\n");
- return RESET_TYPE_SILENT;
- }
- }
- return RESET_TYPE_NORESET;
- }
- static bool HalRxCheckStuck819xUsb(struct net_device *dev)
- {
- u16 RegRxCounter;
- struct r8192_priv *priv = ieee80211_priv(dev);
- bool bStuck = false;
- static u8 rx_chk_cnt;
- read_nic_word(dev, 0x130, &RegRxCounter);
- RT_TRACE(COMP_RESET,
- "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
- RegRxCounter, priv->RxCounter);
- /* If rssi is small, we should check rx for long time because of bad rx.
- * or maybe it will continuous silent reset every 2 seconds.
- */
- rx_chk_cnt++;
- if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
- rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
- } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
- ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
- (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
- if (rx_chk_cnt < 2)
- return bStuck;
- rx_chk_cnt = 0;
- } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
- (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
- priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
- if (rx_chk_cnt < 4)
- return bStuck;
- rx_chk_cnt = 0;
- } else {
- if (rx_chk_cnt < 8)
- return bStuck;
- rx_chk_cnt = 0;
- }
- if (priv->RxCounter == RegRxCounter)
- bStuck = true;
- priv->RxCounter = RegRxCounter;
- return bStuck;
- }
- static RESET_TYPE RxCheckStuck(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- bool bRxCheck = false;
- if (priv->IrpPendingCount > 1)
- bRxCheck = true;
- if (bRxCheck) {
- if (HalRxCheckStuck819xUsb(dev)) {
- RT_TRACE(COMP_RESET, "RxStuck Condition\n");
- return RESET_TYPE_SILENT;
- }
- }
- return RESET_TYPE_NORESET;
- }
- /**
- * This function is called by Checkforhang to check whether we should
- * ask OS to reset driver
- *
- * \param pAdapter The adapter context for this miniport
- *
- * Note:NIC with USB interface sholud not call this function because we
- * cannot scan descriptor to judge whether there is tx stuck.
- * Note: This function may be required to be rewrite for Vista OS.
- * <<<Assumption: Tx spinlock has been acquired >>>
- *
- * 8185 and 8185b does not implement this function.
- */
- static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- RESET_TYPE TxResetType = RESET_TYPE_NORESET;
- RESET_TYPE RxResetType = RESET_TYPE_NORESET;
- RT_RF_POWER_STATE rfState;
- rfState = priv->ieee80211->eRFPowerState;
- TxResetType = TxCheckStuck(dev);
- if (rfState != eRfOff ||
- (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
- /* If driver is in the status of firmware download failure,
- * driver skips RF initialization and RF is in turned off
- * state. Driver should check whether Rx stuck and do silent
- * reset. And if driver is in firmware download failure status,
- * driver should initialize RF in the following silent reset
- * procedure
- *
- * Driver should not check RX stuck in IBSS mode because it is
- * required to set Check BSSID in order to send beacon,
- * however, if check BSSID is set, STA cannot hear any packet
- * at all.
- */
- RxResetType = RxCheckStuck(dev);
- }
- if (TxResetType == RESET_TYPE_NORMAL ||
- RxResetType == RESET_TYPE_NORMAL) {
- return RESET_TYPE_NORMAL;
- } else if (TxResetType == RESET_TYPE_SILENT ||
- RxResetType == RESET_TYPE_SILENT) {
- RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
- return RESET_TYPE_SILENT;
- } else {
- return RESET_TYPE_NORESET;
- }
- }
- static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
- static int _rtl8192_up(struct net_device *dev);
- static int rtl8192_close(struct net_device *dev);
- static void CamRestoreAllEntry(struct net_device *dev)
- {
- u8 EntryId = 0;
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 *MacAddr = priv->ieee80211->current_network.bssid;
- static u8 CAM_CONST_ADDR[4][6] = {
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
- static u8 CAM_CONST_BROAD[] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
- RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
- if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
- (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
- for (EntryId = 0; EntryId < 4; EntryId++) {
- MacAddr = CAM_CONST_ADDR[EntryId];
- setKey(dev, EntryId, EntryId,
- priv->ieee80211->pairwise_key_type,
- MacAddr, 0, NULL);
- }
- } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
- if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
- setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
- (u8 *)dev->dev_addr, 0, NULL);
- else
- setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
- MacAddr, 0, NULL);
- } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
- if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
- setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
- (u8 *)dev->dev_addr, 0, NULL);
- else
- setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
- MacAddr, 0, NULL);
- }
- if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
- MacAddr = CAM_CONST_BROAD;
- for (EntryId = 1; EntryId < 4; EntryId++) {
- setKey(dev, EntryId, EntryId,
- priv->ieee80211->group_key_type,
- MacAddr, 0, NULL);
- }
- if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
- setKey(dev, 0, 0, priv->ieee80211->group_key_type,
- CAM_CONST_ADDR[0], 0, NULL);
- } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
- MacAddr = CAM_CONST_BROAD;
- for (EntryId = 1; EntryId < 4; EntryId++) {
- setKey(dev, EntryId, EntryId,
- priv->ieee80211->group_key_type,
- MacAddr, 0, NULL);
- }
- if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
- setKey(dev, 0, 0, priv->ieee80211->group_key_type,
- CAM_CONST_ADDR[0], 0, NULL);
- }
- }
- /* This function is used to fix Tx/Rx stop bug temporarily.
- * This function will do "system reset" to NIC when Tx or Rx is stuck.
- * The method checking Tx/Rx stuck of this function is supported by FW,
- * which reports Tx and Rx counter to register 0x128 and 0x130.
- */
- static void rtl819x_ifsilentreset(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- u8 reset_times = 0;
- int reset_status = 0;
- struct ieee80211_device *ieee = priv->ieee80211;
- /* If we need to check CCK stop, please uncomment this line. */
- /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
- if (priv->ResetProgress == RESET_TYPE_NORESET) {
- RESET_START:
- RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
- /* Set the variable for reset. */
- priv->ResetProgress = RESET_TYPE_SILENT;
- down(&priv->wx_sem);
- if (priv->up == 0) {
- RT_TRACE(COMP_ERR,
- "%s():the driver is not up! return\n",
- __func__);
- up(&priv->wx_sem);
- return;
- }
- priv->up = 0;
- RT_TRACE(COMP_RESET,
- "%s():======>start to down the driver\n",
- __func__);
- rtl8192_rtx_disable(dev);
- rtl8192_cancel_deferred_work(priv);
- deinit_hal_dm(dev);
- del_timer_sync(&priv->watch_dog_timer);
- ieee->sync_scan_hurryup = 1;
- if (ieee->state == IEEE80211_LINKED) {
- down(&ieee->wx_sem);
- netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
- ieee80211_stop_send_beacons(priv->ieee80211);
- del_timer_sync(&ieee->associate_timer);
- cancel_delayed_work(&ieee->associate_retry_wq);
- ieee80211_stop_scan(ieee);
- netif_carrier_off(dev);
- up(&ieee->wx_sem);
- } else {
- netdev_dbg(dev, "ieee->state is NOT LINKED\n");
- ieee80211_softmac_stop_protocol(priv->ieee80211);
- }
- up(&priv->wx_sem);
- RT_TRACE(COMP_RESET,
- "%s():<==========down process is finished\n",
- __func__);
- RT_TRACE(COMP_RESET,
- "%s():===========>start up the driver\n",
- __func__);
- reset_status = _rtl8192_up(dev);
- RT_TRACE(COMP_RESET,
- "%s():<===========up process is finished\n",
- __func__);
- if (reset_status == -EAGAIN) {
- if (reset_times < 3) {
- reset_times++;
- goto RESET_START;
- } else {
- RT_TRACE(COMP_ERR,
- " ERR!!! %s(): Reset Failed!!\n",
- __func__);
- }
- }
- ieee->is_silent_reset = 1;
- EnableHWSecurityConfig8192(dev);
- if (ieee->state == IEEE80211_LINKED &&
- ieee->iw_mode == IW_MODE_INFRA) {
- ieee->set_chan(ieee->dev,
- ieee->current_network.channel);
- queue_work(ieee->wq, &ieee->associate_complete_wq);
- } else if (ieee->state == IEEE80211_LINKED &&
- ieee->iw_mode == IW_MODE_ADHOC) {
- ieee->set_chan(ieee->dev,
- ieee->current_network.channel);
- ieee->link_change(ieee->dev);
- ieee80211_start_send_beacons(ieee);
- if (ieee->data_hard_resume)
- ieee->data_hard_resume(ieee->dev);
- netif_carrier_on(ieee->dev);
- }
- CamRestoreAllEntry(dev);
- priv->ResetProgress = RESET_TYPE_NORESET;
- priv->reset_count++;
- priv->bForcedSilentReset = false;
- priv->bResetInProgress = false;
- /* For test --> force write UFWP. */
- write_nic_byte(dev, UFWP, 1);
- RT_TRACE(COMP_RESET,
- "Reset finished!! ====>[%d]\n",
- priv->reset_count);
- }
- }
- static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
- u32 *TotalRxDataNum)
- {
- u16 SlotIndex;
- u8 i;
- *TotalRxBcnNum = 0;
- *TotalRxDataNum = 0;
- SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
- (priv->ieee80211->LinkDetectInfo.SlotNum);
- priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
- priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
- priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
- priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
- for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
- *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
- *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
- }
- }
- static void rtl819x_watchdog_wqcallback(struct work_struct *work)
- {
- struct delayed_work *dwork = container_of(work,
- struct delayed_work, work);
- struct r8192_priv *priv = container_of(dwork,
- struct r8192_priv, watch_dog_wq);
- struct net_device *dev = priv->ieee80211->dev;
- struct ieee80211_device *ieee = priv->ieee80211;
- RESET_TYPE ResetType = RESET_TYPE_NORESET;
- static u8 check_reset_cnt;
- bool bBusyTraffic = false;
- u32 TotalRxBcnNum = 0;
- u32 TotalRxDataNum = 0;
- if (!priv->up)
- return;
- hal_dm_watchdog(dev);
- /* to get busy traffic condition */
- if (ieee->state == IEEE80211_LINKED) {
- if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
- ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
- bBusyTraffic = true;
- }
- ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
- ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
- ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
- }
- /* for AP roaming */
- if (priv->ieee80211->state == IEEE80211_LINKED &&
- priv->ieee80211->iw_mode == IW_MODE_INFRA) {
- rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
- if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
- #ifdef TODO
- if (rfState == eRfOff)
- RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
- #endif
- netdev_dbg(dev,
- "===>%s(): AP is power off, connect another one\n",
- __func__);
- priv->ieee80211->state = IEEE80211_ASSOCIATING;
- notify_wx_assoc_event(priv->ieee80211);
- RemovePeerTS(priv->ieee80211,
- priv->ieee80211->current_network.bssid);
- priv->ieee80211->link_change(dev);
- queue_work(priv->ieee80211->wq,
- &priv->ieee80211->associate_procedure_wq);
- }
- }
- priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
- priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
- /* check if reset the driver */
- if (check_reset_cnt++ >= 3) {
- ResetType = rtl819x_ifcheck_resetornot(dev);
- check_reset_cnt = 3;
- }
- /* This is control by OID set in Pomelo */
- if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
- (priv->bForcedSilentReset ||
- (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
- RT_TRACE(COMP_RESET,
- "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
- __func__, priv->force_reset, priv->ResetProgress,
- priv->bForcedSilentReset,
- priv->bDisableNormalResetCheck, ResetType);
- rtl819x_ifsilentreset(dev);
- }
- priv->force_reset = false;
- priv->bForcedSilentReset = false;
- priv->bResetInProgress = false;
- RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
- }
- static void watch_dog_timer_callback(unsigned long data)
- {
- struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
- queue_delayed_work(priv->priv_wq, &priv->watch_dog_wq, 0);
- mod_timer(&priv->watch_dog_timer,
- jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
- }
- static int _rtl8192_up(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int init_status = 0;
- priv->up = 1;
- priv->ieee80211->ieee_up = 1;
- RT_TRACE(COMP_INIT, "Bringing up iface");
- init_status = rtl8192_adapter_start(dev);
- if (!init_status) {
- RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
- __func__);
- priv->up = priv->ieee80211->ieee_up = 0;
- return -EAGAIN;
- }
- RT_TRACE(COMP_INIT, "start adapter finished\n");
- rtl8192_rx_enable(dev);
- if (priv->ieee80211->state != IEEE80211_LINKED)
- ieee80211_softmac_start_protocol(priv->ieee80211);
- ieee80211_reset_queue(priv->ieee80211);
- watch_dog_timer_callback((unsigned long)dev);
- if (!netif_queue_stopped(dev))
- netif_start_queue(dev);
- else
- netif_wake_queue(dev);
- return 0;
- }
- static int rtl8192_open(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int ret;
- down(&priv->wx_sem);
- ret = rtl8192_up(dev);
- up(&priv->wx_sem);
- return ret;
- }
- int rtl8192_up(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- if (priv->up == 1)
- return -1;
- return _rtl8192_up(dev);
- }
- static int rtl8192_close(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int ret;
- down(&priv->wx_sem);
- ret = rtl8192_down(dev);
- up(&priv->wx_sem);
- return ret;
- }
- int rtl8192_down(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int i;
- if (priv->up == 0)
- return -1;
- priv->up = 0;
- priv->ieee80211->ieee_up = 0;
- RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
- /* FIXME */
- if (!netif_queue_stopped(dev))
- netif_stop_queue(dev);
- rtl8192_rtx_disable(dev);
- /* Tx related queue release */
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
- for (i = 0; i < MAX_QUEUE_SIZE; i++)
- skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
- /* as cancel_delayed_work will del work->timer, so if work is not
- * defined as struct delayed_work, it will corrupt
- */
- rtl8192_cancel_deferred_work(priv);
- deinit_hal_dm(dev);
- del_timer_sync(&priv->watch_dog_timer);
- ieee80211_softmac_stop_protocol(priv->ieee80211);
- memset(&priv->ieee80211->current_network, 0,
- offsetof(struct ieee80211_network, list));
- RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
- return 0;
- }
- void rtl8192_commit(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- int reset_status = 0;
- if (priv->up == 0)
- return;
- priv->up = 0;
- rtl8192_cancel_deferred_work(priv);
- del_timer_sync(&priv->watch_dog_timer);
- ieee80211_softmac_stop_protocol(priv->ieee80211);
- rtl8192_rtx_disable(dev);
- reset_status = _rtl8192_up(dev);
- }
- static void rtl8192_restart(struct work_struct *work)
- {
- struct r8192_priv *priv = container_of(work, struct r8192_priv,
- reset_wq);
- struct net_device *dev = priv->ieee80211->dev;
- down(&priv->wx_sem);
- rtl8192_commit(dev);
- up(&priv->wx_sem);
- }
- static void r8192_set_multicast(struct net_device *dev)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- short promisc;
- /* FIXME FIXME */
- promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
- if (promisc != priv->promisc)
- priv->promisc = promisc;
- }
- static int r8192_set_mac_adr(struct net_device *dev, void *mac)
- {
- struct r8192_priv *priv = ieee80211_priv(dev);
- struct sockaddr *addr = mac;
- down(&priv->wx_sem);
- ether_addr_copy(dev->dev_addr, addr->sa_data);
- schedule_work(&priv->reset_wq);
- up(&priv->wx_sem);
- return 0;
- }
- /* based on ipw2200 driver */
- static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct iwreq *wrq = (struct iwreq *)rq;
- int ret = -1;
- struct ieee80211_device *ieee = priv->ieee80211;
- u32 key[4];
- u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
- struct iw_point *p = &wrq->u.data;
- struct ieee_param *ipw = NULL;
- down(&priv->wx_sem);
- if (p->length < sizeof(struct ieee_param) || !p->pointer) {
- ret = -EINVAL;
- goto out;
- }
- ipw = memdup_user(p->pointer, p->length);
- if (IS_ERR(ipw)) {
- ret = PTR_ERR(ipw);
- goto out;
- }
- switch (cmd) {
- case RTL_IOCTL_WPA_SUPPLICANT:
- /* parse here for HW security */
- if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
- if (ipw->u.crypt.set_tx) {
- if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
- ieee->pairwise_key_type = KEY_TYPE_CCMP;
- } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
- ieee->pairwise_key_type = KEY_TYPE_TKIP;
- } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
- if (ipw->u.crypt.key_len == 13)
- ieee->pairwise_key_type = KEY_TYPE_WEP104;
- else if (ipw->u.crypt.key_len == 5)
- ieee->pairwise_key_type = KEY_TYPE_WEP40;
- } else {
- ieee->pairwise_key_type = KEY_TYPE_NA;
- }
- if (ieee->pairwise_key_type) {
- memcpy((u8 *)key, ipw->u.crypt.key, 16);
- EnableHWSecurityConfig8192(dev);
- /* We fill both index entry and 4th
- * entry for pairwise key as in IPW
- * interface, adhoc will only get here,
- * so we need index entry for its
- * default key serching!
- */
- setKey(dev, 4, ipw->u.crypt.idx,
- ieee->pairwise_key_type,
- (u8 *)ieee->ap_mac_addr,
- 0, key);
- if (ieee->auth_mode != 2)
- setKey(dev, ipw->u.crypt.idx,
- ipw->u.crypt.idx,
- ieee->pairwise_key_type,
- (u8 *)ieee->ap_mac_addr,
- 0, key);
- }
- } else {
- memcpy((u8 *)key, ipw->u.crypt.key, 16);
- if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
- ieee->group_key_type = KEY_TYPE_CCMP;
- } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
- ieee->group_key_type = KEY_TYPE_TKIP;
- } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
- if (ipw->u.crypt.key_len == 13)
- ieee->group_key_type = KEY_TYPE_WEP104;
- else if (ipw->u.crypt.key_len == 5)
- ieee->group_key_type = KEY_TYPE_WEP40;
- } else {
- ieee->group_key_type = KEY_TYPE_NA;
- }
- if (ieee->group_key_type) {
- setKey(dev, ipw->u.crypt.idx,
- /* KeyIndex */
- ipw->u.crypt.idx,
- /* KeyType */
- ieee->group_key_type,
- /* MacAddr */
- broadcast_addr,
- /* DefaultKey */
- 0,
- /* KeyContent */
- key);
- }
- }
- }
- ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
- &wrq->u.data);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
- kfree(ipw);
- ipw = NULL;
- out:
- up(&priv->wx_sem);
- return ret;
- }
- static u8 HwRateToMRate90(bool bIsHT, u8 rate)
- {
- u8 ret_rate = 0xff;
- if (!bIsHT) {
- switch (rate) {
- case DESC90_RATE1M:
- ret_rate = MGN_1M;
- break;
- case DESC90_RATE2M:
- ret_rate = MGN_2M;
- break;
- case DESC90_RATE5_5M:
- ret_rate = MGN_5_5M;
- break;
- case DESC90_RATE11M:
- ret_rate = MGN_11M;
- break;
- case DESC90_RATE6M:
- ret_rate = MGN_6M;
- break;
- case DESC90_RATE9M:
- ret_rate = MGN_9M;
- break;
- case DESC90_RATE12M:
- ret_rate = MGN_12M;
- break;
- case DESC90_RATE18M:
- ret_rate = MGN_18M;
- break;
- case DESC90_RATE24M:
- ret_rate = MGN_24M;
- break;
- case DESC90_RATE36M:
- ret_rate = MGN_36M;
- break;
- case DESC90_RATE48M:
- ret_rate = MGN_48M;
- break;
- case DESC90_RATE54M:
- ret_rate = MGN_54M;
- break;
- default:
- ret_rate = 0xff;
- RT_TRACE(COMP_RECV,
- "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
- rate, bIsHT);
- break;
- }
- } else {
- switch (rate) {
- case DESC90_RATEMCS0:
- ret_rate = MGN_MCS0;
- break;
- case DESC90_RATEMCS1:
- ret_rate = MGN_MCS1;
- break;
- case DESC90_RATEMCS2:
- ret_rate = MGN_MCS2;
- break;
- case DESC90_RATEMCS3:
- ret_rate = MGN_MCS3;
- break;
- case DESC90_RATEMCS4:
- ret_rate = MGN_MCS4;
- break;
- case DESC90_RATEMCS5:
- ret_rate = MGN_MCS5;
- break;
- case DESC90_RATEMCS6:
- ret_rate = MGN_MCS6;
- break;
- case DESC90_RATEMCS7:
- ret_rate = MGN_MCS7;
- break;
- case DESC90_RATEMCS8:
- ret_rate = MGN_MCS8;
- break;
- case DESC90_RATEMCS9:
- ret_rate = MGN_MCS9;
- break;
- case DESC90_RATEMCS10:
- ret_rate = MGN_MCS10;
- break;
- case DESC90_RATEMCS11:
- ret_rate = MGN_MCS11;
- break;
- case DESC90_RATEMCS12:
- ret_rate = MGN_MCS12;
- break;
- case DESC90_RATEMCS13:
- ret_rate = MGN_MCS13;
- break;
- case DESC90_RATEMCS14:
- ret_rate = MGN_MCS14;
- break;
- case DESC90_RATEMCS15:
- ret_rate = MGN_MCS15;
- break;
- case DESC90_RATEMCS32:
- ret_rate = 0x80 | 0x20;
- break;
- default:
- ret_rate = 0xff;
- RT_TRACE(COMP_RECV,
- "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
- rate, bIsHT);
- break;
- }
- }
- return ret_rate;
- }
- /**
- * Function: UpdateRxPktTimeStamp
- * Overview: Record the TSF time stamp when receiving a packet
- *
- * Input:
- * PADAPTER Adapter
- * PRT_RFD pRfd,
- *
- * Output:
- * PRT_RFD pRfd
- * (pRfd->Status.TimeStampHigh is updated)
- * (pRfd->Status.TimeStampLow is updated)
- * Return:
- * None
- */
- static void UpdateRxPktTimeStamp8190(struct net_device *dev,
- struct ieee80211_rx_stats *stats)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- if (stats->bIsAMPDU && !stats->bFirstMPDU) {
- stats->mac_time[0] = priv->LastRxDescTSFLow;
- stats->mac_time[1] = priv->LastRxDescTSFHigh;
- } else {
- priv->LastRxDescTSFLow = stats->mac_time[0];
- priv->LastRxDescTSFHigh = stats->mac_time[1];
- }
- }
- /* 0-100 index. */
- static long rtl819x_translate_todbm(u8 signal_strength_index)
- {
- long signal_power; /* in dBm. */
- /* Translate to dBm (x=0.5y-95). */
- signal_power = (long)((signal_strength_index + 1) >> 1);
- signal_power -= 95;
- return signal_power;
- }
- /* We can not declare RSSI/EVM total value of sliding window to
- * be a local static. Otherwise, it may increase when we return from S3/S4. The
- * value will be kept in memory or disk. Declare the value in the adaptor
- * and it will be reinitialized when returned from S3/S4.
- */
- static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
- struct ieee80211_rx_stats *pprevious_stats,
- struct ieee80211_rx_stats *pcurrent_stats)
- {
- bool bcheck = false;
- u8 rfpath;
- u32 nspatial_stream, tmp_val;
- static u32 slide_rssi_index, slide_rssi_statistics;
- static u32 slide_evm_index, slide_evm_statistics;
- static u32 last_rssi, last_evm;
- static u32 slide_beacon_adc_pwdb_index;
- static u32 slide_beacon_adc_pwdb_statistics;
- static u32 last_beacon_adc_pwdb;
- struct rtl_80211_hdr_3addr *hdr;
- u16 sc;
- unsigned int frag, seq;
- hdr = (struct rtl_80211_hdr_3addr *)buffer;
- sc = le16_to_cpu(hdr->seq_ctl);
- frag = WLAN_GET_SEQ_FRAG(sc);
- seq = WLAN_GET_SEQ_SEQ(sc);
- /* to record the sequence number */
- pcurrent_stats->Seq_Num = seq;
- /* Check whether we should take the previous packet into accounting */
- if (!pprevious_stats->bIsAMPDU) {
- /* if previous packet is not aggregated packet */
- bcheck = true;
- }
- if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
- slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
- last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
- priv->stats.slide_rssi_total -= last_rssi;
- }
- priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
- priv->stats.slide_signal_strength[slide_rssi_index++] =
- pprevious_stats->SignalStrength;
- if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
- slide_rssi_index = 0;
- /* <1> Showed on UI for user, in dbm */
- tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
- priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
- pcurrent_stats->rssi = priv->stats.signal_strength;
- /* If the previous packet does not match the criteria, neglect it */
- if (!pprevious_stats->bPacketMatchBSSID) {
- if (!pprevious_stats->bToSelfBA)
- return;
- }
- if (!bcheck)
- return;
- /* only rtl8190 supported
- * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
- */
- /* Check RSSI */
- priv->stats.num_process_phyinfo++;
- /* record the general signal strength to the sliding window. */
- /* <2> Showed on UI for engineering
- * hardware does not provide rssi information for each rf path in CCK
- */
- if (!pprevious_stats->bIsCCK &&
- (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
- for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
- if (!rtl8192_phy_CheckIsLegalRFPath(
- priv->ieee80211->dev, rfpath))
- continue;
- if (priv->stats.rx_rssi_percentage[rfpath] == 0)
- priv->stats.rx_rssi_percentage[rfpath] =
- pprevious_stats->RxMIMOSignalStrength[rfpath];
- if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
- priv->stats.rx_rssi_percentage[rfpath] =
- ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
- (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
- priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
- } else {
- priv->stats.rx_rssi_percentage[rfpath] =
- ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
- (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
- }
- RT_TRACE(COMP_DBG,
- "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
- priv->stats.rx_rssi_percentage[rfpath]);
- }
- }
- /* Check PWDB. */
- RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
- pprevious_stats->bIsCCK ? "CCK" : "OFDM",
- pprevious_stats->RxPWDBAll);
- if (pprevious_stats->bPacketBeacon) {
- /* record the beacon pwdb to the sliding window. */
- if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
- slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
- last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
- priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
- }
- priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
- priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
- slide_beacon_adc_pwdb_index++;
- if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
- slide_beacon_adc_pwdb_index = 0;
- pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
- if (pprevious_stats->RxPWDBAll >= 3)
- pprevious_stats->RxPWDBAll -= 3;
- }
- RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
- pprevious_stats->bIsCCK ? "CCK" : "OFDM",
- pprevious_stats->RxPWDBAll);
- if (pprevious_stats->bPacketToSelf ||
- pprevious_stats->bPacketBeacon ||
- pprevious_stats->bToSelfBA) {
- if (priv->undecorated_smoothed_pwdb < 0)
- /* initialize */
- priv->undecorated_smoothed_pwdb =
- pprevious_stats->RxPWDBAll;
- if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
- priv->undecorated_smoothed_pwdb =
- (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
- (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
- priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
- } else {
- priv->undecorated_smoothed_pwdb =
- (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
- (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
- }
- }
- /* Check EVM */
- /* record the general EVM to the sliding window. */
- if (pprevious_stats->SignalQuality) {
- if (pprevious_stats->bPacketToSelf ||
- pprevious_stats->bPacketBeacon ||
- pprevious_stats->bToSelfBA) {
- if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
- slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
- last_evm = priv->stats.slide_evm[slide_evm_index];
- priv->stats.slide_evm_total -= last_evm;
- }
- priv->stats.slide_evm_total +=
- pprevious_stats->SignalQuality;
- priv->stats.slide_evm[slide_evm_index++] =
- pprevious_stats->SignalQuality;
- if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
- slide_evm_index = 0;
- /* <1> Showed on UI for user, in percentage. */
- tmp_val = priv->stats.slide_evm_total /
- slide_evm_statistics;
- priv->stats.signal_quality = tmp_val;
- /* Showed on UI for user in Windows Vista,
- * for Link quality.
- */
- priv->stats.last_signal_strength_inpercent = tmp_val;
- }
- /* <2> Showed on UI for engineering */
- if (pprevious_stats->bPacketToSelf ||
- pprevious_stats->bPacketBeacon ||
- pprevious_stats->bToSelfBA) {
- for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
- if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
- if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
- priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
- priv->stats.rx_evm_percentage[nspatial_stream] =
- ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
- (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
- }
- }
- }
- }
- }
- /*-----------------------------------------------------------------------------
- * Function: rtl819x_query_rxpwrpercentage()
- *
- * Overview:
- *
- * Input: char antpower
- *
- * Output: NONE
- *
- * Return: 0-100 percentage
- *---------------------------------------------------------------------------*/
- static u8 rtl819x_query_rxpwrpercentage(char antpower)
- {
- if ((antpower <= -100) || (antpower >= 20))
- return 0;
- else if (antpower >= 0)
- return 100;
- else
- return 100 + antpower;
- } /* QueryRxPwrPercentage */
- static u8 rtl819x_evm_dbtopercentage(char value)
- {
- char ret_val;
- ret_val = value;
- if (ret_val >= 0)
- ret_val = 0;
- if (ret_val <= -33)
- ret_val = -33;
- ret_val = 0 - ret_val;
- ret_val *= 3;
- if (ret_val == 99)
- ret_val = 100;
- return ret_val;
- }
- /* We want good-looking for signal strength/quality */
- static long rtl819x_signal_scale_mapping(long currsig)
- {
- long retsig;
- /* Step 1. Scale mapping. */
- if (currsig >= 61 && currsig <= 100)
- retsig = 90 + ((currsig - 60) / 4);
- else if (currsig >= 41 && currsig <= 60)
- retsig = 78 + ((currsig - 40) / 2);
- else if (currsig >= 31 && currsig <= 40)
- retsig = 66 + (currsig - 30);
- else if (currsig >= 21 && currsig <= 30)
- retsig = 54 + (currsig - 20);
- else if (currsig >= 5 && currsig <= 20)
- retsig = 42 + (((currsig - 5) * 2) / 3);
- else if (currsig == 4)
- retsig = 36;
- else if (currsig == 3)
- retsig = 27;
- else if (currsig == 2)
- retsig = 18;
- else if (currsig == 1)
- retsig = 9;
- else
- retsig = currsig;
- return retsig;
- }
- static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
- {
- if (pdrvinfo->RxHT)
- return false;
- switch (pdrvinfo->RxRate) {
- case DESC90_RATE1M:
- case DESC90_RATE2M:
- case DESC90_RATE5_5M:
- case DESC90_RATE11M:
- return true;
- default:
- return false;
- }
- }
- static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
- struct ieee80211_rx_stats *pstats,
- rx_drvinfo_819x_usb *pdrvinfo,
- struct ieee80211_rx_stats *precord_stats,
- bool bpacket_match_bssid,
- bool bpacket_toself,
- bool bPacketBeacon,
- bool bToSelfBA)
- {
- phy_sts_ofdm_819xusb_t *pofdm_buf;
- phy_sts_cck_819xusb_t *pcck_buf;
- phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
- u8 *prxpkt;
- u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
- char rx_pwr[4], rx_pwr_all = 0;
- char rx_snrX, rx_evmX;
- u8 evm, pwdb_all;
- u32 RSSI, total_rssi = 0;
- u8 is_cck_rate = 0;
- u8 rf_rx_num = 0;
- u8 sq;
- priv->stats.numqry_phystatus++;
- is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
- /* Record it for next packet processing */
- memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
- pstats->bPacketMatchBSSID =
- precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
- pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
- pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
- pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
- pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
- prxpkt = (u8 *)pdrvinfo;
- /* Move pointer to the 16th bytes. Phy status start address. */
- prxpkt += sizeof(rx_drvinfo_819x_usb);
- /* Initial the cck and ofdm buffer pointer */
- pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
- pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
- pstats->RxMIMOSignalQuality[0] = -1;
- pstats->RxMIMOSignalQuality[1] = -1;
- precord_stats->RxMIMOSignalQuality[0] = -1;
- precord_stats->RxMIMOSignalQuality[1] = -1;
- if (is_cck_rate) {
- /* (1)Hardware does not provide RSSI for CCK */
- /* (2)PWDB, Average PWDB cacluated by hardware
- * (for rate adaptive)
- */
- u8 report;
- priv->stats.numqry_phystatusCCK++;
- if (!priv->bCckHighPower) {
- report = pcck_buf->cck_agc_rpt & 0xc0;
- report >>= 6;
- switch (report) {
- case 0x3:
- rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
- break;
- case 0x2:
- rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
- break;
- case 0x1:
- rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
- break;
- case 0x0:
- rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
- break;
- }
- } else {
- report = pcck_buf->cck_agc_rpt & 0x60;
- report >>= 5;
- switch (report) {
- case 0x3:
- rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
- break;
- case 0x2:
- rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
- break;
- case 0x1:
- rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
- break;
- case 0x0:
- rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
- break;
- }
- }
- pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
- pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
- pstats->RecvSignalPower = pwdb_all;
- /* (3) Get Signal Quality (EVM) */
- if (pstats->RxPWDBAll > 40) {
- sq = 100;
- } else {
- sq = pcck_buf->sq_rpt;
- if (pcck_buf->sq_rpt > 64)
- sq = 0;
- else if (pcck_buf->sq_rpt < 20)
- sq = 100;
- else
- sq = ((64 - sq) * 100) / 44;
- }
- pstats->SignalQuality = precord_stats->SignalQuality = sq;
- pstats->RxMIMOSignalQuality[0] =
- precord_stats->RxMIMOSignalQuality[0] = sq;
- pstats->RxMIMOSignalQuality[1] =
- precord_stats->RxMIMOSignalQuality[1] = -1;
- } else {
- priv->stats.numqry_phystatusHT++;
- /* (1)Get RSSI for HT rate */
- for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
- /* We will judge RF RX path now. */
- if (priv->brfpath_rxenable[i])
- rf_rx_num++;
- else
- continue;
- if (!rtl8192_phy_CheckIsLegalRFPath(
- priv->ieee80211->dev, i))
- continue;
- rx_pwr[i] =
- ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
- /* Get Rx snr value in DB */
- tmp_rxsnr = pofdm_buf->rxsnr_X[i];
- rx_snrX = (char)(tmp_rxsnr);
- rx_snrX /= 2;
- priv->stats.rxSNRdB[i] = (long)rx_snrX;
- /* Translate DBM to percentage. */
- RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
- total_rssi += RSSI;
- /* Record Signal Strength for next packet */
- pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
- precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
- }
- /* (2)PWDB, Average PWDB cacluated by hardware
- * (for rate adaptive)
- */
- rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
- pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
- pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
- pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
- /* (3)EVM of HT rate */
- if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
- pdrvinfo->RxRate <= DESC90_RATEMCS15)
- /* both spatial stream make sense */
- max_spatial_stream = 2;
- else
- /* only spatial stream 1 makes sense */
- max_spatial_stream = 1;
- for (i = 0; i < max_spatial_stream; i++) {
- tmp_rxevm = pofdm_buf->rxevm_X[i];
- rx_evmX = (char)(tmp_rxevm);
- /* Do not use shift operation like "rx_evmX >>= 1"
- * because the compiler of free build environment will
- * set the most significant bit to "zero" when doing
- * shifting operation which may change a negative value
- * to positive one, then the dbm value (which is
- * supposed to be negative) is not correct anymore.
- */
- rx_evmX /= 2; /* dbm */
- evm = rtl819x_evm_dbtopercentage(rx_evmX);
- if (i == 0)
- /* Fill value in RFD, Get the first spatial
- * stream only
- */
- pstats->SignalQuality =
- precord_stats->SignalQuality =
- (u8)(evm & 0xff);
- pstats->RxMIMOSignalQuality[i] =
- precord_stats->RxMIMOSignalQuality[i] =
- (u8)(evm & 0xff);
- }
- /* record rx statistics for debug */
- rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
- prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
- &rxsc_sgien_exflg;
- if (pdrvinfo->BW) /* 40M channel */
- priv->stats.received_bwtype[1 + prxsc->rxsc]++;
- else /* 20M channel */
- priv->stats.received_bwtype[0]++;
- }
- /* UI BSS List signal strength(in percentage), make it good looking,
- * from 0~100. It is assigned to the BSS List in
- * GetValueFromBeaconOrProbeRsp().
- */
- if (is_cck_rate) {
- pstats->SignalStrength =
- precord_stats->SignalStrength =
- (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
- } else {
- /* We can judge RX path number now. */
- if (rf_rx_num != 0) {
- pstats->SignalStrength =
- precord_stats->SignalStrength =
- (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
- }
- }
- } /* QueryRxPhyStatus8190Pci */
- static void rtl8192_record_rxdesc_forlateruse(
- struct ieee80211_rx_stats *psrc_stats,
- struct ieee80211_rx_stats *ptarget_stats)
- {
- ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
- ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
- ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
- }
- static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
- struct ieee80211_rx_stats *pstats,
- rx_drvinfo_819x_usb *pdrvinfo)
- {
- /* TODO: We must only check packet for current MAC address.
- * Not finish
- */
- struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
- struct net_device *dev = info->dev;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- bool bpacket_match_bssid, bpacket_toself;
- bool bPacketBeacon = false, bToSelfBA = false;
- static struct ieee80211_rx_stats previous_stats;
- struct rtl_80211_hdr_3addr *hdr;
- u16 fc, type;
- /* Get Signal Quality for only RX data queue (but not command queue) */
- u8 *tmp_buf;
- u8 *praddr;
- /* Get MAC frame start address. */
- tmp_buf = (u8 *)skb->data;
- hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
- fc = le16_to_cpu(hdr->frame_ctl);
- type = WLAN_FC_GET_TYPE(fc);
- praddr = hdr->addr1;
- /* Check if the received packet is acceptable. */
- bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
- (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
- && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
- bpacket_toself = bpacket_match_bssid &
- (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
- if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
- bPacketBeacon = true;
- if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
- if ((eqMacAddr(praddr, dev->dev_addr)))
- bToSelfBA = true;
- }
- if (bpacket_match_bssid)
- priv->stats.numpacket_matchbssid++;
- if (bpacket_toself)
- priv->stats.numpacket_toself++;
- /* Process PHY information for previous packet (RSSI/PWDB/EVM)
- * Because phy information is contained in the last packet of AMPDU
- * only, so driver should process phy information of previous packet
- */
- rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
- rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
- bpacket_match_bssid, bpacket_toself,
- bPacketBeacon, bToSelfBA);
- rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
- }
- /**
- * Function: UpdateReceivedRateHistogramStatistics
- * Overview: Record the received data rate
- *
- * Input:
- * struct net_device *dev
- * struct ieee80211_rx_stats *stats
- *
- * Output:
- *
- * (priv->stats.ReceivedRateHistogram[] is updated)
- * Return:
- * None
- */
- static void
- UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
- struct ieee80211_rx_stats *stats)
- {
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- /* 0: Total, 1:OK, 2:CRC, 3:ICV */
- u32 rcvType = 1;
- u32 rateIndex;
- /* 1: short preamble/GI, 0: long preamble/GI */
- u32 preamble_guardinterval;
- if (stats->bCRC)
- rcvType = 2;
- else if (stats->bICV)
- rcvType = 3;
- if (stats->bShortPreamble)
- preamble_guardinterval = 1; /* short */
- else
- preamble_guardinterval = 0; /* long */
- switch (stats->rate) {
- /* CCK rate */
- case MGN_1M:
- rateIndex = 0;
- break;
- case MGN_2M:
- rateIndex = 1;
- break;
- case MGN_5_5M:
- rateIndex = 2;
- break;
- case MGN_11M:
- rateIndex = 3;
- break;
- /* Legacy OFDM rate */
- case MGN_6M:
- rateIndex = 4;
- break;
- case MGN_9M:
- rateIndex = 5;
- break;
- case MGN_12M:
- rateIndex = 6;
- break;
- case MGN_18M:
- rateIndex = 7;
- break;
- case MGN_24M:
- rateIndex = 8;
- break;
- case MGN_36M:
- rateIndex = 9;
- break;
- case MGN_48M:
- rateIndex = 10;
- break;
- case MGN_54M:
- rateIndex = 11;
- break;
- /* 11n High throughput rate */
- case MGN_MCS0:
- rateIndex = 12;
- break;
- case MGN_MCS1:
- rateIndex = 13;
- break;
- case MGN_MCS2:
- rateIndex = 14;
- break;
- case MGN_MCS3:
- rateIndex = 15;
- break;
- case MGN_MCS4:
- rateIndex = 16;
- break;
- case MGN_MCS5:
- rateIndex = 17;
- break;
- case MGN_MCS6:
- rateIndex = 18;
- break;
- case MGN_MCS7:
- rateIndex = 19;
- break;
- case MGN_MCS8:
- rateIndex = 20;
- break;
- case MGN_MCS9:
- rateIndex = 21;
- break;
- case MGN_MCS10:
- rateIndex = 22;
- break;
- case MGN_MCS11:
- rateIndex = 23;
- break;
- case MGN_MCS12:
- rateIndex = 24;
- break;
- case MGN_MCS13:
- rateIndex = 25;
- break;
- case MGN_MCS14:
- rateIndex = 26;
- break;
- case MGN_MCS15:
- rateIndex = 27;
- break;
- default:
- rateIndex = 28;
- break;
- }
- priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
- priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
- priv->stats.received_rate_histogram[rcvType][rateIndex]++;
- }
- static void query_rxdesc_status(struct sk_buff *skb,
- struct ieee80211_rx_stats *stats,
- bool bIsRxAggrSubframe)
- {
- struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
- struct net_device *dev = info->dev;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- rx_drvinfo_819x_usb *driver_info = NULL;
- /* Get Rx Descriptor Information */
- rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
- stats->Length = desc->Length;
- stats->RxDrvInfoSize = desc->RxDrvInfoSize;
- stats->RxBufShift = 0;
- stats->bICV = desc->ICV;
- stats->bCRC = desc->CRC32;
- stats->bHwError = stats->bCRC | stats->bICV;
- /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
- stats->Decrypted = !desc->SWDec;
- if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
- (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
- stats->bHwError = false;
- else
- stats->bHwError = stats->bCRC | stats->bICV;
- if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
- stats->bHwError |= 1;
- /* Get Driver Info */
- /* TODO: Need to verify it on FGPA platform
- * Driver info are written to the RxBuffer following rx desc
- */
- if (stats->RxDrvInfoSize != 0) {
- driver_info = (rx_drvinfo_819x_usb *)(
- skb->data
- + sizeof(rx_desc_819x_usb)
- + stats->RxBufShift
- );
- /* unit: 0.5M */
- /* TODO */
- if (!stats->bHwError) {
- u8 ret_rate;
- ret_rate = HwRateToMRate90(driver_info->RxHT,
- driver_info->RxRate);
- if (ret_rate == 0xff) {
- /* Abnormal Case: Receive CRC OK packet with Rx
- * descriptor indicating non supported rate.
- * Special Error Handling here
- */
- stats->bHwError = 1;
- /* Set 1M rate by default */
- stats->rate = MGN_1M;
- } else {
- stats->rate = ret_rate;
- }
- } else {
- stats->rate = 0x02;
- }
- stats->bShortPreamble = driver_info->SPLCP;
- UpdateReceivedRateHistogramStatistics8190(dev, stats);
- stats->bIsAMPDU = (driver_info->PartAggr == 1);
- stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
- (driver_info->FirstAGGR == 1);
- stats->TimeStampLow = driver_info->TSFL;
- UpdateRxPktTimeStamp8190(dev, stats);
- /* Rx A-MPDU */
- if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
- RT_TRACE(COMP_RXDESC,
- "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
- driver_info->FirstAGGR, driver_info->PartAggr);
- }
- skb_pull(skb, sizeof(rx_desc_819x_usb));
- /* Get Total offset of MPDU Frame Body */
- if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
- stats->bShift = 1;
- skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
- }
- if (driver_info) {
- stats->RxIs40MHzPacket = driver_info->BW;
- TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
- }
- }
- static void rtl8192_rx_nomal(struct sk_buff *skb)
- {
- struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
- struct net_device *dev = info->dev;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct ieee80211_rx_stats stats = {
- .signal = 0,
- .noise = 0x100 - 98,
- .rate = 0,
- .freq = IEEE80211_24GHZ_BAND,
- };
- u32 rx_pkt_len = 0;
- struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
- bool unicast_packet = false;
- /* 20 is for ps-poll */
- if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
- /* first packet should not contain Rx aggregation header */
- query_rxdesc_status(skb, &stats, false);
- /* TODO */
- /* hardware related info */
- /* Process the MPDU received */
- skb_trim(skb, skb->len - 4/*sCrcLng*/);
- rx_pkt_len = skb->len;
- ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
- unicast_packet = false;
- if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
- /* TODO */
- } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
- /* TODO */
- } else {
- /* unicast packet */
- unicast_packet = true;
- }
- if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
- dev_kfree_skb_any(skb);
- } else {
- priv->stats.rxoktotal++;
- if (unicast_packet)
- priv->stats.rxbytesunicast += rx_pkt_len;
- }
- } else {
- priv->stats.rxurberr++;
- netdev_dbg(dev, "actual_length: %d\n", skb->len);
- dev_kfree_skb_any(skb);
- }
- }
- static void rtl819xusb_process_received_packet(
- struct net_device *dev,
- struct ieee80211_rx_stats *pstats)
- {
- u8 *frame;
- u16 frame_len = 0;
- struct r8192_priv *priv = ieee80211_priv(dev);
- /* Get shifted bytes of Starting address of 802.11 header. */
- pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
- frame = pstats->virtual_address;
- frame_len = pstats->packetlength;
- #ifdef TODO /* about HCT */
- if (!Adapter->bInHctTest)
- CountRxErrStatistics(Adapter, pRfd);
- #endif
- #ifdef ENABLE_PS /* for adding ps function in future */
- RT_RF_POWER_STATE rtState;
- /* When RF is off, we should not count the packet for hw/sw synchronize
- * reason, ie. there may be a duration while sw switch is changed and
- * hw switch is being changed.
- */
- Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
- (u8 *)(&rtState));
- if (rtState == eRfOff)
- return;
- #endif
- priv->stats.rxframgment++;
- #ifdef TODO
- RmMonitorSignalStrength(Adapter, pRfd);
- #endif
- /* We have to release RFD and return if rx pkt is cmd pkt. */
- if (rtl819xusb_rx_command_packet(dev, pstats))
- return;
- #ifdef SW_CRC_CHECK
- SwCrcCheck();
- #endif
- }
- static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
- struct ieee80211_rx_stats *stats)
- {
- rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
- /* Get Rx Descriptor Information */
- stats->virtual_address = (u8 *)skb->data;
- stats->Length = desc->Length;
- stats->RxDrvInfoSize = 0;
- stats->RxBufShift = 0;
- stats->packetlength = stats->Length - scrclng;
- stats->fraglength = stats->packetlength;
- stats->fragoffset = 0;
- stats->ntotalfrag = 1;
- }
- static void rtl8192_rx_cmd(struct sk_buff *skb)
- {
- struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
- struct net_device *dev = info->dev;
- /* TODO */
- struct ieee80211_rx_stats stats = {
- .signal = 0,
- .noise = 0x100 - 98,
- .rate = 0,
- .freq = IEEE80211_24GHZ_BAND,
- };
- if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
- query_rx_cmdpkt_desc_status(skb, &stats);
- /* prfd->queue_id = 1; */
- /* Process the command packet received. */
- rtl819xusb_process_received_packet(dev, &stats);
- dev_kfree_skb_any(skb);
- }
- }
- static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
- {
- struct sk_buff *skb;
- struct rtl8192_rx_info *info;
- while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
- info = (struct rtl8192_rx_info *)skb->cb;
- switch (info->out_pipe) {
- /* Nomal packet pipe */
- case 3:
- priv->IrpPendingCount--;
- rtl8192_rx_nomal(skb);
- break;
- /* Command packet pipe */
- case 9:
- RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
- info->out_pipe);
- rtl8192_rx_cmd(skb);
- break;
- default: /* should never get here! */
- RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
- info->out_pipe);
- dev_kfree_skb(skb);
- break;
- }
- }
- }
- static const struct net_device_ops rtl8192_netdev_ops = {
- .ndo_open = rtl8192_open,
- .ndo_stop = rtl8192_close,
- .ndo_get_stats = rtl8192_stats,
- .ndo_tx_timeout = tx_timeout,
- .ndo_do_ioctl = rtl8192_ioctl,
- .ndo_set_rx_mode = r8192_set_multicast,
- .ndo_set_mac_address = r8192_set_mac_adr,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_start_xmit = ieee80211_xmit,
- };
- /****************************************************************************
- ---------------------------- USB_STUFF---------------------------
- *****************************************************************************/
- static int rtl8192_usb_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
- {
- struct net_device *dev = NULL;
- struct r8192_priv *priv = NULL;
- struct usb_device *udev = interface_to_usbdev(intf);
- int ret;
- RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
- dev = alloc_ieee80211(sizeof(struct r8192_priv));
- if (dev == NULL)
- return -ENOMEM;
- usb_set_intfdata(intf, dev);
- SET_NETDEV_DEV(dev, &intf->dev);
- priv = ieee80211_priv(dev);
- priv->ieee80211 = netdev_priv(dev);
- priv->udev = udev;
- dev->netdev_ops = &rtl8192_netdev_ops;
- dev->wireless_handlers =
- (struct iw_handler_def *)&r8192_wx_handlers_def;
- dev->type = ARPHRD_ETHER;
- dev->watchdog_timeo = HZ * 3;
- if (dev_alloc_name(dev, ifname) < 0) {
- RT_TRACE(COMP_INIT,
- "Oops: devname already taken! Trying wlan%%d...\n");
- ifname = "wlan%d";
- dev_alloc_name(dev, ifname);
- }
- RT_TRACE(COMP_INIT, "Driver probe completed1\n");
- if (rtl8192_init(dev) != 0) {
- RT_TRACE(COMP_ERR, "Initialization failed");
- ret = -ENODEV;
- goto fail;
- }
- netif_carrier_off(dev);
- netif_stop_queue(dev);
- ret = register_netdev(dev);
- if (ret)
- goto fail2;
- RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
- rtl8192_proc_init_one(dev);
- RT_TRACE(COMP_INIT, "Driver probe completed\n");
- return 0;
- fail2:
- rtl8192_down(dev);
- kfree(priv->pFirmware);
- priv->pFirmware = NULL;
- rtl8192_usb_deleteendpoints(dev);
- destroy_workqueue(priv->priv_wq);
- mdelay(10);
- fail:
- free_ieee80211(dev);
- RT_TRACE(COMP_ERR, "wlan driver load failed\n");
- return ret;
- }
- /* detach all the work and timer structure declared or inititialize
- * in r8192U_init function.
- */
- static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
- {
- cancel_work_sync(&priv->reset_wq);
- cancel_delayed_work(&priv->watch_dog_wq);
- cancel_delayed_work(&priv->update_beacon_wq);
- cancel_work_sync(&priv->qos_activate);
- }
- static void rtl8192_usb_disconnect(struct usb_interface *intf)
- {
- struct net_device *dev = usb_get_intfdata(intf);
- struct r8192_priv *priv = ieee80211_priv(dev);
- if (dev) {
- unregister_netdev(dev);
- RT_TRACE(COMP_DOWN,
- "=============>wlan driver to be removed\n");
- rtl8192_proc_remove_one(dev);
- rtl8192_down(dev);
- kfree(priv->pFirmware);
- priv->pFirmware = NULL;
- rtl8192_usb_deleteendpoints(dev);
- destroy_workqueue(priv->priv_wq);
- mdelay(10);
- }
- free_ieee80211(dev);
- RT_TRACE(COMP_DOWN, "wlan driver removed\n");
- }
- static int __init rtl8192_usb_module_init(void)
- {
- int ret;
- #ifdef CONFIG_IEEE80211_DEBUG
- ret = ieee80211_debug_init();
- if (ret) {
- pr_err("ieee80211_debug_init() failed %d\n", ret);
- return ret;
- }
- #endif
- ret = ieee80211_crypto_init();
- if (ret) {
- pr_err("ieee80211_crypto_init() failed %d\n", ret);
- return ret;
- }
- ret = ieee80211_crypto_tkip_init();
- if (ret) {
- pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
- return ret;
- }
- ret = ieee80211_crypto_ccmp_init();
- if (ret) {
- pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
- return ret;
- }
- ret = ieee80211_crypto_wep_init();
- if (ret) {
- pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
- return ret;
- }
- pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
- pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
- RT_TRACE(COMP_INIT, "Initializing module");
- RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
- rtl8192_proc_module_init();
- return usb_register(&rtl8192_usb_driver);
- }
- static void __exit rtl8192_usb_module_exit(void)
- {
- usb_deregister(&rtl8192_usb_driver);
- RT_TRACE(COMP_DOWN, "Exiting");
- }
- void rtl8192_try_wake_queue(struct net_device *dev, int pri)
- {
- unsigned long flags;
- short enough_desc;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- spin_lock_irqsave(&priv->tx_lock, flags);
- enough_desc = check_nic_enough_desc(dev, pri);
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- if (enough_desc)
- ieee80211_wake_queue(priv->ieee80211);
- }
- void EnableHWSecurityConfig8192(struct net_device *dev)
- {
- u8 SECR_value = 0x0;
- struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
- struct ieee80211_device *ieee = priv->ieee80211;
- SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
- if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
- SECR_value |= SCR_RxUseDK;
- SECR_value |= SCR_TxUseDK;
- } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
- SECR_value |= SCR_RxUseDK;
- SECR_value |= SCR_TxUseDK;
- }
- /* add HWSec active enable here.
- * default using hwsec. when peer AP is in N mode only and
- * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
- * it), use software security. when peer AP is in b,g,n mode mixed and
- * pairwise_key_type is none_aes, use g mode hw security.
- */
- ieee->hwsec_active = 1;
- /* add hwsec_support flag to totol control hw_sec on/off */
- if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
- ieee->hwsec_active = 0;
- SECR_value &= ~SCR_RxDecEnable;
- }
- RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
- __func__, ieee->hwsec_active, ieee->pairwise_key_type,
- SECR_value);
- write_nic_byte(dev, SECR, SECR_value);
- }
- void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
- u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
- {
- u32 TargetCommand = 0;
- u32 TargetContent = 0;
- u16 usConfig = 0;
- u8 i;
- if (EntryNo >= TOTAL_CAM_ENTRY)
- RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
- RT_TRACE(COMP_SEC,
- "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
- dev, EntryNo, KeyIndex, KeyType, MacAddr);
- if (DefaultKey)
- usConfig |= BIT(15) | (KeyType << 2);
- else
- usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
- for (i = 0; i < CAM_CONTENT_COUNT; i++) {
- TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
- TargetCommand |= BIT(31) | BIT(16);
- if (i == 0) { /* MAC|Config */
- TargetContent = (u32)(*(MacAddr + 0)) << 16 |
- (u32)(*(MacAddr + 1)) << 24 |
- (u32)usConfig;
- write_nic_dword(dev, WCAMI, TargetContent);
- write_nic_dword(dev, RWCAM, TargetCommand);
- } else if (i == 1) { /* MAC */
- TargetContent = (u32)(*(MacAddr + 2)) |
- (u32)(*(MacAddr + 3)) << 8 |
- (u32)(*(MacAddr + 4)) << 16 |
- (u32)(*(MacAddr + 5)) << 24;
- write_nic_dword(dev, WCAMI, TargetContent);
- write_nic_dword(dev, RWCAM, TargetCommand);
- } else {
- /* Key Material */
- if (KeyContent != NULL) {
- write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2)));
- write_nic_dword(dev, RWCAM, TargetCommand);
- }
- }
- }
- }
- /***************************************************************************
- ------------------- module init / exit stubs ----------------
- ****************************************************************************/
- module_init(rtl8192_usb_module_init);
- module_exit(rtl8192_usb_module_exit);
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