Google Git
Sign in
gfiber / kernel / quantenna / 16eab666e043be5afbac17e81f2d0c56922c06d3 / . / drivers / staging / rtl8192e / rtl8192e / rtl_core.c
blob: 13a5ddc2bea577c68d17ebf930893194341f27a1 [file] [log] [blame]
/******************************************************************************
* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
*
* Based on the r8180 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.
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
******************************************************************************/
#include <linux/uaccess.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/ieee80211.h>
#include "rtl_core.h"
#include "r8192E_phy.h"
#include "r8192E_phyreg.h"
#include "r8190P_rtl8256.h"
#include "r8192E_cmdpkt.h"
#include "rtl_wx.h"
#include "rtl_dm.h"
#include "rtl_pm.h"
int hwwep = 1;
static int channels = 0x3fff;
static char *ifname = "wlan%d";
static struct rtl819x_ops rtl819xp_ops = {
.nic_type = NIC_8192E,
.get_eeprom_size = rtl92e_get_eeprom_size,
.init_adapter_variable = rtl92e_init_variables,
.initialize_adapter = rtl92e_start_adapter,
.link_change = rtl92e_link_change,
.tx_fill_descriptor = rtl92e_fill_tx_desc,
.tx_fill_cmd_descriptor = rtl92e_fill_tx_cmd_desc,
.rx_query_status_descriptor = rtl92e_get_rx_stats,
.rx_command_packet_handler = NULL,
.stop_adapter = rtl92e_stop_adapter,
.update_ratr_table = rtl92e_update_ratr_table,
.irq_enable = rtl92e_enable_irq,
.irq_disable = rtl92e_disable_irq,
.irq_clear = rtl92e_clear_irq,
.rx_enable = rtl92e_enable_rx,
.tx_enable = rtl92e_enable_tx,
.interrupt_recognized = rtl92e_ack_irq,
.TxCheckStuckHandler = rtl92e_is_tx_stuck,
.RxCheckStuckHandler = rtl92e_is_rx_stuck,
};
static struct pci_device_id rtl8192_pci_id_tbl[] = {
{RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
{RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
{RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
{}
};
MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
static int _rtl92e_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id);
static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
static irqreturn_t _rtl92e_irq(int irq, void *netdev);
static struct pci_driver rtl8192_pci_driver = {
.name = DRV_NAME, /* Driver name */
.id_table = rtl8192_pci_id_tbl, /* PCI_ID table */
.probe = _rtl92e_pci_probe, /* probe fn */
.remove = _rtl92e_pci_disconnect, /* remove fn */
.suspend = rtl92e_suspend, /* PM suspend fn */
.resume = rtl92e_resume, /* PM resume fn */
};
static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
static void _rtl92e_watchdog_wq_cb(void *data);
static void _rtl92e_watchdog_timer_cb(unsigned long data);
static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
int rate);
static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
static short _rtl92e_pci_initdescring(struct net_device *dev);
static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
static int _rtl92e_try_up(struct net_device *dev);
static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
static void _rtl92e_restart(void *data);
/****************************************************************************
-----------------------------IO STUFF-------------------------
*****************************************************************************/
u8 rtl92e_readb(struct net_device *dev, int x)
{
return 0xff & readb((u8 __iomem *)dev->mem_start + x);
}
u32 rtl92e_readl(struct net_device *dev, int x)
{
return readl((u8 __iomem *)dev->mem_start + x);
}
u16 rtl92e_readw(struct net_device *dev, int x)
{
return readw((u8 __iomem *)dev->mem_start + x);
}
void rtl92e_writeb(struct net_device *dev, int x, u8 y)
{
writeb(y, (u8 __iomem *)dev->mem_start + x);
udelay(20);
}
void rtl92e_writel(struct net_device *dev, int x, u32 y)
{
writel(y, (u8 __iomem *)dev->mem_start + x);
udelay(20);
}
void rtl92e_writew(struct net_device *dev, int x, u16 y)
{
writew(y, (u8 __iomem *)dev->mem_start + x);
udelay(20);
}
/****************************************************************************
-----------------------------GENERAL FUNCTION-------------------------
*****************************************************************************/
bool rtl92e_set_rf_state(struct net_device *dev,
enum rt_rf_power_state StateToSet,
RT_RF_CHANGE_SOURCE ChangeSource)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_device *ieee = priv->rtllib;
bool bActionAllowed = false;
bool bConnectBySSID = false;
enum rt_rf_power_state rtState;
u16 RFWaitCounter = 0;
unsigned long flag;
RT_TRACE((COMP_PS | COMP_RF),
"===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
while (true) {
spin_lock_irqsave(&priv->rf_ps_lock, flag);
if (priv->RFChangeInProgress) {
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
RT_TRACE((COMP_PS | COMP_RF),
"rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
StateToSet);
while (priv->RFChangeInProgress) {
RFWaitCounter++;
RT_TRACE((COMP_PS | COMP_RF),
"rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
RFWaitCounter);
mdelay(1);
if (RFWaitCounter > 100) {
netdev_warn(dev,
"%s(): Timeout waiting for RF change.\n",
__func__);
return false;
}
}
} else {
priv->RFChangeInProgress = true;
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
break;
}
}
rtState = priv->rtllib->eRFPowerState;
switch (StateToSet) {
case eRfOn:
priv->rtllib->RfOffReason &= (~ChangeSource);
if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
priv->bHwRadioOff = false;
if (!priv->rtllib->RfOffReason) {
priv->rtllib->RfOffReason = 0;
bActionAllowed = true;
if (rtState == eRfOff &&
ChangeSource >= RF_CHANGE_BY_HW)
bConnectBySSID = true;
} else {
RT_TRACE((COMP_PS | COMP_RF),
"rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
priv->rtllib->RfOffReason, ChangeSource);
}
break;
case eRfOff:
if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
(priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
(ChangeSource > RF_CHANGE_BY_IPS)) {
if (ieee->state == RTLLIB_LINKED)
priv->blinked_ingpio = true;
else
priv->blinked_ingpio = false;
rtllib_MgntDisconnect(priv->rtllib,
WLAN_REASON_DISASSOC_STA_HAS_LEFT);
}
}
if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
priv->bHwRadioOff = true;
priv->rtllib->RfOffReason |= ChangeSource;
bActionAllowed = true;
break;
case eRfSleep:
priv->rtllib->RfOffReason |= ChangeSource;
bActionAllowed = true;
break;
default:
break;
}
if (bActionAllowed) {
RT_TRACE((COMP_PS | COMP_RF),
"rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
StateToSet, priv->rtllib->RfOffReason);
PHY_SetRFPowerState(dev, StateToSet);
if (StateToSet == eRfOn) {
if (bConnectBySSID && priv->blinked_ingpio) {
schedule_delayed_work(
&ieee->associate_procedure_wq, 0);
priv->blinked_ingpio = false;
}
}
} else {
RT_TRACE((COMP_PS | COMP_RF),
"rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
StateToSet, ChangeSource, priv->rtllib->RfOffReason);
}
spin_lock_irqsave(&priv->rf_ps_lock, flag);
priv->RFChangeInProgress = false;
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
return bActionAllowed;
}
static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
if (ring->entries - skb_queue_len(&ring->queue) >= 2)
return 1;
return 0;
}
static void _rtl92e_tx_timeout(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
schedule_work(&priv->reset_wq);
netdev_info(dev, "TXTIMEOUT");
}
void rtl92e_irq_enable(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
priv->irq_enabled = 1;
priv->ops->irq_enable(dev);
}
void rtl92e_irq_disable(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
priv->ops->irq_disable(dev);
priv->irq_enabled = 0;
}
static void _rtl92e_set_chan(struct net_device *dev, short ch)
{
struct r8192_priv *priv = rtllib_priv(dev);
RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
if (priv->chan_forced)
return;
priv->chan = ch;
if (priv->rf_set_chan)
priv->rf_set_chan(dev, priv->chan);
}
static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_network *net = &priv->rtllib->current_network;
bool ShortPreamble;
if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
ShortPreamble = true;
priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
RT_TRACE(COMP_DBG,
"%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
__func__);
priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
(unsigned char *)&ShortPreamble);
}
} else {
if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
ShortPreamble = false;
priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
RT_TRACE(COMP_DBG,
"%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
__func__);
priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
(unsigned char *)&ShortPreamble);
}
}
if (net->mode & (IEEE_G|IEEE_N_24G)) {
u8 slot_time_val;
u8 CurSlotTime = priv->slot_time;
if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
(!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
if (CurSlotTime != SHORT_SLOT_TIME) {
slot_time_val = SHORT_SLOT_TIME;
priv->rtllib->SetHwRegHandler(dev,
HW_VAR_SLOT_TIME, &slot_time_val);
}
} else {
if (CurSlotTime != NON_SHORT_SLOT_TIME) {
slot_time_val = NON_SHORT_SLOT_TIME;
priv->rtllib->SetHwRegHandler(dev,
HW_VAR_SLOT_TIME, &slot_time_val);
}
}
}
}
static struct rtllib_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},
{0, 0, 0, 0},
{0, 0, 0, 0}
};
static void _rtl92e_update_beacon(void *data)
{
struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
update_beacon_wq.work);
struct net_device *dev = priv->rtllib->dev;
struct rtllib_device *ieee = priv->rtllib;
struct rtllib_network *net = &ieee->current_network;
if (ieee->pHTInfo->bCurrentHTSupport)
HT_update_self_and_peer_setting(ieee, net);
ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
net->bssht.bdRT2RTLongSlotTime;
ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
_rtl92e_update_cap(dev, net->capability);
}
static void _rtl92e_qos_activate(void *data)
{
struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
qos_activate);
struct net_device *dev = priv->rtllib->dev;
int i;
mutex_lock(&priv->mutex);
if (priv->rtllib->state != RTLLIB_LINKED)
goto success;
RT_TRACE(COMP_QOS,
"qos active process with associate response received\n");
for (i = 0; i < QOS_QUEUE_NUM; i++)
priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
success:
mutex_unlock(&priv->mutex);
}
static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
int active_network,
struct rtllib_network *network)
{
int ret = 0;
u32 size = sizeof(struct rtllib_qos_parameters);
if (priv->rtllib->state != RTLLIB_LINKED)
return ret;
if (priv->rtllib->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;
priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
schedule_work(&priv->qos_activate);
RT_TRACE(COMP_QOS,
"QoS parameters change call qos_activate\n");
}
} else {
memcpy(&priv->rtllib->current_network.qos_data.parameters,
&def_qos_parameters, size);
if ((network->qos_data.active == 1) && (active_network == 1)) {
schedule_work(&priv->qos_activate);
RT_TRACE(COMP_QOS,
"QoS was disabled call qos_activate\n");
}
network->qos_data.active = 0;
network->qos_data.supported = 0;
}
return 0;
}
static int _rtl92e_handle_beacon(struct net_device *dev,
struct rtllib_beacon *beacon,
struct rtllib_network *network)
{
struct r8192_priv *priv = rtllib_priv(dev);
_rtl92e_qos_handle_probe_response(priv, 1, network);
schedule_delayed_work(&priv->update_beacon_wq, 0);
return 0;
}
static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
struct rtllib_network *network)
{
unsigned long flags;
u32 size = sizeof(struct rtllib_qos_parameters);
int set_qos_param = 0;
if ((priv == NULL) || (network == NULL))
return 0;
if (priv->rtllib->state != RTLLIB_LINKED)
return 0;
if (priv->rtllib->iw_mode != IW_MODE_INFRA)
return 0;
spin_lock_irqsave(&priv->rtllib->lock, flags);
if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
memcpy(&priv->rtllib->current_network.qos_data.parameters,
&network->qos_data.parameters,
sizeof(struct rtllib_qos_parameters));
priv->rtllib->current_network.qos_data.active = 1;
priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
set_qos_param = 1;
priv->rtllib->current_network.qos_data.old_param_count =
priv->rtllib->current_network.qos_data.param_count;
priv->rtllib->current_network.qos_data.param_count =
network->qos_data.param_count;
} else {
memcpy(&priv->rtllib->current_network.qos_data.parameters,
&def_qos_parameters, size);
priv->rtllib->current_network.qos_data.active = 0;
priv->rtllib->current_network.qos_data.supported = 0;
set_qos_param = 1;
}
spin_unlock_irqrestore(&priv->rtllib->lock, flags);
RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
network->flags, priv->rtllib->current_network.qos_data.active);
if (set_qos_param == 1) {
rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
schedule_work(&priv->qos_activate);
}
return 0;
}
static int _rtl92e_handle_assoc_response(struct net_device *dev,
struct rtllib_assoc_response_frame *resp,
struct rtllib_network *network)
{
struct r8192_priv *priv = rtllib_priv(dev);
_rtl92e_qos_assoc_resp(priv, network);
return 0;
}
static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
{
struct net_device *dev = priv->rtllib->dev;
struct sk_buff *pskb = NULL, *pnewskb = NULL;
struct cb_desc *tcb_desc = NULL;
struct rtl8192_tx_ring *ring = NULL;
struct tx_desc *pdesc = NULL;
ring = &priv->tx_ring[BEACON_QUEUE];
pskb = __skb_dequeue(&ring->queue);
kfree_skb(pskb);
pnewskb = rtllib_get_beacon(priv->rtllib);
if (!pnewskb)
return;
tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
tcb_desc->queue_index = BEACON_QUEUE;
tcb_desc->data_rate = 2;
tcb_desc->RATRIndex = 7;
tcb_desc->bTxDisableRateFallBack = 1;
tcb_desc->bTxUseDriverAssingedRate = 1;
skb_push(pnewskb, priv->rtllib->tx_headroom);
pdesc = &ring->desc[0];
priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
__skb_queue_tail(&ring->queue, pnewskb);
pdesc->OWN = 1;
}
static void _rtl92e_stop_beacon(struct net_device *dev)
{
}
void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_network *net;
u8 i = 0, basic_rate = 0;
net = &priv->rtllib->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;
}
}
}
static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
{
struct rtllib_device *ieee = priv->rtllib;
if (ieee->mode == WIRELESS_MODE_N_24G ||
ieee->mode == WIRELESS_MODE_N_5G) {
memcpy(ieee->Regdot11HTOperationalRateSet,
ieee->RegHTSuppRateSet, 16);
memcpy(ieee->Regdot11TxHTOperationalRateSet,
ieee->RegHTSuppRateSet, 16);
} else {
memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
}
}
static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 ret = 0;
switch (priv->rf_chip) {
case RF_8225:
case RF_8256:
case RF_6052:
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;
}
void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 bSupportMode = _rtl92e_get_supported_wireless_mode(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 {
netdev_info(dev,
"%s(): Unsupported mode requested. Fallback to 802.11b\n",
__func__);
wireless_mode = WIRELESS_MODE_B;
}
}
if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
(WIRELESS_MODE_G | WIRELESS_MODE_B))
wireless_mode = WIRELESS_MODE_G;
priv->rtllib->mode = wireless_mode;
if ((wireless_mode == WIRELESS_MODE_N_24G) ||
(wireless_mode == WIRELESS_MODE_N_5G)) {
priv->rtllib->pHTInfo->bEnableHT = 1;
RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
__func__, wireless_mode);
} else {
priv->rtllib->pHTInfo->bEnableHT = 0;
RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
__func__, wireless_mode);
}
RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
_rtl92e_refresh_support_rate(priv);
}
static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
(&(priv->rtllib->PowerSaveControl));
bool init_status = true;
priv->bDriverIsGoingToUnload = false;
priv->bdisable_nic = false;
priv->up = 1;
priv->rtllib->ieee_up = 1;
priv->up_first_time = 0;
RT_TRACE(COMP_INIT, "Bringing up iface");
priv->bfirst_init = true;
init_status = priv->ops->initialize_adapter(dev);
if (!init_status) {
netdev_err(dev, "%s(): Initialization failed!\n", __func__);
priv->bfirst_init = false;
return -1;
}
RT_TRACE(COMP_INIT, "start adapter finished\n");
RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
priv->bfirst_init = false;
if (priv->polling_timer_on == 0)
rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
if (priv->rtllib->state != RTLLIB_LINKED)
rtllib_softmac_start_protocol(priv->rtllib, 0);
rtllib_reset_queue(priv->rtllib);
_rtl92e_watchdog_timer_cb((unsigned long)dev);
if (!netif_queue_stopped(dev))
netif_start_queue(dev);
else
netif_wake_queue(dev);
return 0;
}
static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
{
struct r8192_priv *priv = rtllib_priv(dev);
unsigned long flags = 0;
u8 RFInProgressTimeOut = 0;
if (priv->up == 0)
return -1;
if (priv->rtllib->rtllib_ips_leave != NULL)
priv->rtllib->rtllib_ips_leave(dev);
if (priv->rtllib->state == RTLLIB_LINKED)
rtl92e_leisure_ps_leave(dev);
priv->bDriverIsGoingToUnload = true;
priv->up = 0;
priv->rtllib->ieee_up = 0;
priv->bfirst_after_down = true;
RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
if (!netif_queue_stopped(dev))
netif_stop_queue(dev);
priv->rtllib->wpa_ie_len = 0;
kfree(priv->rtllib->wpa_ie);
priv->rtllib->wpa_ie = NULL;
rtl92e_cam_reset(dev);
memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
rtl92e_irq_disable(dev);
del_timer_sync(&priv->watch_dog_timer);
_rtl92e_cancel_deferred_work(priv);
cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
spin_lock_irqsave(&priv->rf_ps_lock, flags);
while (priv->RFChangeInProgress) {
spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
if (RFInProgressTimeOut > 100) {
spin_lock_irqsave(&priv->rf_ps_lock, flags);
break;
}
RT_TRACE(COMP_DBG,
"===>%s():RF is in progress, need to wait until rf change is done.\n",
__func__);
mdelay(1);
RFInProgressTimeOut++;
spin_lock_irqsave(&priv->rf_ps_lock, flags);
}
priv->RFChangeInProgress = true;
spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
priv->ops->stop_adapter(dev, false);
spin_lock_irqsave(&priv->rf_ps_lock, flags);
priv->RFChangeInProgress = false;
spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
udelay(100);
memset(&priv->rtllib->current_network, 0,
offsetof(struct rtllib_network, list));
RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
return 0;
}
static void _rtl92e_init_priv_handler(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
priv->rtllib->softmac_hard_start_xmit = _rtl92e_hard_start_xmit;
priv->rtllib->set_chan = _rtl92e_set_chan;
priv->rtllib->link_change = priv->ops->link_change;
priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
priv->rtllib->check_nic_enough_desc = _rtl92e_check_nic_enough_desc;
priv->rtllib->handle_assoc_response = _rtl92e_handle_assoc_response;
priv->rtllib->handle_beacon = _rtl92e_handle_beacon;
priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
priv->rtllib->LeisurePSLeave = rtl92e_leisure_ps_leave;
priv->rtllib->SetBWModeHandler = rtl92e_set_bw_mode;
priv->rf_set_chan = rtl92e_set_channel;
priv->rtllib->start_send_beacons = rtl92e_start_beacon;
priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
priv->rtllib->GetHalfNmodeSupportByAPsHandler =
rtl92e_is_halfn_supported_by_ap;
priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
priv->rtllib->SetFwCmdHandler = NULL;
priv->rtllib->InitialGainHandler = rtl92e_init_gain;
priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
priv->rtllib->LedControlHandler = NULL;
priv->rtllib->UpdateBeaconInterruptHandler = NULL;
priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
}
static void _rtl92e_init_priv_constant(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
&(priv->rtllib->PowerSaveControl);
pPSC->RegMaxLPSAwakeIntvl = 5;
}
static void _rtl92e_init_priv_variable(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 i;
priv->AcmMethod = eAcmWay2_SW;
priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
priv->rtllib->status = 0;
priv->polling_timer_on = 0;
priv->up_first_time = 1;
priv->blinked_ingpio = false;
priv->bDriverIsGoingToUnload = false;
priv->being_init_adapter = false;
priv->initialized_at_probe = false;
priv->bdisable_nic = false;
priv->bfirst_init = false;
priv->txringcount = 64;
priv->rxbuffersize = 9100;
priv->rxringcount = MAX_RX_COUNT;
priv->irq_enabled = 0;
priv->chan = 1;
priv->RegChannelPlan = 0xf;
priv->rtllib->mode = WIRELESS_MODE_AUTO;
priv->rtllib->iw_mode = IW_MODE_INFRA;
priv->rtllib->bNetPromiscuousMode = false;
priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
false;
priv->rtllib->ieee_up = 0;
priv->retry_rts = DEFAULT_RETRY_RTS;
priv->retry_data = DEFAULT_RETRY_DATA;
priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
priv->rtllib->rate = 110;
priv->rtllib->short_slot = 1;
priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
priv->bcck_in_ch14 = false;
priv->bfsync_processing = false;
priv->CCKPresentAttentuation = 0;
priv->rfa_txpowertrackingindex = 0;
priv->rfc_txpowertrackingindex = 0;
priv->CckPwEnl = 6;
priv->ScanDelay = 50;
priv->ResetProgress = RESET_TYPE_NORESET;
priv->bForcedSilentReset = false;
priv->bDisableNormalResetCheck = false;
priv->force_reset = false;
memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
priv->RxCounter = 0;
priv->rtllib->wx_set_enc = 0;
priv->bHwRadioOff = false;
priv->RegRfOff = false;
priv->isRFOff = false;
priv->bInPowerSaveMode = false;
priv->rtllib->RfOffReason = 0;
priv->RFChangeInProgress = false;
priv->bHwRfOffAction = 0;
priv->SetRFPowerStateInProgress = false;
priv->rtllib->PowerSaveControl.bInactivePs = true;
priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
priv->rtllib->PowerSaveControl.bLeisurePs = true;
priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
priv->rtllib->LPSDelayCnt = 0;
priv->rtllib->sta_sleep = LPS_IS_WAKE;
priv->rtllib->eRFPowerState = eRfOn;
priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
priv->rtllib->iw_mode = IW_MODE_INFRA;
priv->rtllib->active_scan = 1;
priv->rtllib->be_scan_inprogress = false;
priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
RTLLIB_OFDM_MODULATION;
priv->rtllib->host_encrypt = 1;
priv->rtllib->host_decrypt = 1;
priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
priv->card_type = PCI;
priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
if (!priv->pFirmware)
netdev_err(dev,
"rtl8192e: Unable to allocate space for firmware\n");
skb_queue_head_init(&priv->skb_queue);
for (i = 0; i < MAX_QUEUE_SIZE; i++)
skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
for (i = 0; i < MAX_QUEUE_SIZE; i++)
skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
}
static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
{
spin_lock_init(&priv->tx_lock);
spin_lock_init(&priv->irq_th_lock);
spin_lock_init(&priv->rf_ps_lock);
spin_lock_init(&priv->ps_lock);
sema_init(&priv->wx_sem, 1);
sema_init(&priv->rf_sem, 1);
mutex_init(&priv->mutex);
}
static void _rtl92e_init_priv_task(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
dev);
INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
(void *)_rtl92e_watchdog_wq_cb, dev);
INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
(void *)rtl92e_dm_txpower_tracking_wq, dev);
INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
(void *)rtl92e_dm_rf_pathcheck_wq, dev);
INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
(void *)_rtl92e_update_beacon, dev);
INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
(void *) rtl92e_hw_wakeup_wq, dev);
INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
(void *) rtl92e_hw_sleep_wq, dev);
tasklet_init(&priv->irq_rx_tasklet,
(void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
(unsigned long)priv);
tasklet_init(&priv->irq_tx_tasklet,
(void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
(unsigned long)priv);
tasklet_init(&priv->irq_prepare_beacon_tasklet,
(void(*)(unsigned long))_rtl92e_prepare_beacon,
(unsigned long)priv);
}
static short _rtl92e_get_channel_map(struct net_device *dev)
{
int i;
struct r8192_priv *priv = rtllib_priv(dev);
if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
&& (priv->rf_chip != RF_6052)) {
netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
__func__);
return -1;
}
if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
netdev_info(dev,
"rtl819x_init:Error channel plan! Set to default.\n");
priv->ChannelPlan = COUNTRY_CODE_FCC;
}
RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
dot11d_init(priv->rtllib);
Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
for (i = 1; i <= 11; i++)
(priv->rtllib->active_channel_map)[i] = 1;
(priv->rtllib->active_channel_map)[12] = 2;
(priv->rtllib->active_channel_map)[13] = 2;
return 0;
}
static short _rtl92e_init(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
memset(&(priv->stats), 0, sizeof(struct rt_stats));
_rtl92e_init_priv_handler(dev);
_rtl92e_init_priv_constant(dev);
_rtl92e_init_priv_variable(dev);
_rtl92e_init_priv_lock(priv);
_rtl92e_init_priv_task(dev);
priv->ops->get_eeprom_size(dev);
priv->ops->init_adapter_variable(dev);
_rtl92e_get_channel_map(dev);
rtl92e_dm_init(dev);
setup_timer(&priv->watch_dog_timer,
_rtl92e_watchdog_timer_cb,
(unsigned long) dev);
setup_timer(&priv->gpio_polling_timer,
rtl92e_check_rfctrl_gpio_timer,
(unsigned long)dev);
rtl92e_irq_disable(dev);
if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
netdev_err(dev, "Error allocating IRQ %d", dev->irq);
return -1;
}
priv->irq = dev->irq;
RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
if (_rtl92e_pci_initdescring(dev) != 0) {
netdev_err(dev, "Endopoints initialization failed");
free_irq(dev->irq, dev);
return -1;
}
return 0;
}
/***************************************************************************
-------------------------------WATCHDOG STUFF---------------------------
***************************************************************************/
static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
{
int i = 0;
struct r8192_priv *priv = rtllib_priv(dev);
for (i = 0; i <= MGNT_QUEUE; i++) {
if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
continue;
if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
i, skb_queue_len(&(&priv->tx_ring[i])->queue));
return 0;
}
}
return 1;
}
static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 QueueID;
bool bCheckFwTxCnt = false;
struct rtl8192_tx_ring *ring = NULL;
struct sk_buff *skb = NULL;
struct cb_desc *tcb_desc = NULL;
unsigned long flags = 0;
switch (priv->rtllib->ps) {
case RTLLIB_PS_DISABLED:
break;
case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
break;
default:
break;
}
spin_lock_irqsave(&priv->irq_th_lock, flags);
for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
if (QueueID == TXCMD_QUEUE)
continue;
if (QueueID == BEACON_QUEUE)
continue;
ring = &priv->tx_ring[QueueID];
if (skb_queue_len(&ring->queue) == 0) {
continue;
} else {
skb = (&ring->queue)->next;
tcb_desc = (struct cb_desc *)(skb->cb +
MAX_DEV_ADDR_SIZE);
tcb_desc->nStuckCount++;
bCheckFwTxCnt = true;
if (tcb_desc->nStuckCount > 1)
netdev_info(dev,
"%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
__func__, QueueID,
tcb_desc->nStuckCount);
}
}
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
if (bCheckFwTxCnt) {
if (priv->ops->TxCheckStuckHandler(dev)) {
RT_TRACE(COMP_RESET,
"TxCheckStuck(): Fw indicates no Tx condition!\n");
return RESET_TYPE_SILENT;
}
}
return RESET_TYPE_NORESET;
}
static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
if (priv->ops->RxCheckStuckHandler(dev)) {
RT_TRACE(COMP_RESET, "RxStuck Condition\n");
return RESET_TYPE_SILENT;
}
return RESET_TYPE_NORESET;
}
static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
enum reset_type TxResetType = RESET_TYPE_NORESET;
enum reset_type RxResetType = RESET_TYPE_NORESET;
enum rt_rf_power_state rfState;
rfState = priv->rtllib->eRFPowerState;
if (rfState == eRfOn)
TxResetType = _rtl92e_tx_check_stuck(dev);
if (rfState == eRfOn &&
(priv->rtllib->iw_mode == IW_MODE_INFRA) &&
(priv->rtllib->state == RTLLIB_LINKED))
RxResetType = _rtl92e_rx_check_stuck(dev);
if (TxResetType == RESET_TYPE_NORMAL ||
RxResetType == RESET_TYPE_NORMAL) {
netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
__func__, TxResetType, RxResetType);
return RESET_TYPE_NORMAL;
} else if (TxResetType == RESET_TYPE_SILENT ||
RxResetType == RESET_TYPE_SILENT) {
netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
__func__, TxResetType, RxResetType);
return RESET_TYPE_SILENT;
} else {
return RESET_TYPE_NORESET;
}
}
static void _rtl92e_if_silent_reset(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 reset_times = 0;
int reset_status = 0;
struct rtllib_device *ieee = priv->rtllib;
unsigned long flag;
if (priv->ResetProgress == RESET_TYPE_NORESET) {
RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
priv->ResetProgress = RESET_TYPE_SILENT;
spin_lock_irqsave(&priv->rf_ps_lock, flag);
if (priv->RFChangeInProgress) {
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
goto END;
}
priv->RFChangeInProgress = true;
priv->bResetInProgress = true;
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
RESET_START:
down(&priv->wx_sem);
if (priv->rtllib->state == RTLLIB_LINKED)
rtl92e_leisure_ps_leave(dev);
if (priv->up) {
netdev_info(dev, "%s():the driver is not up.\n",
__func__);
up(&priv->wx_sem);
return;
}
priv->up = 0;
RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
__func__);
mdelay(1000);
RT_TRACE(COMP_RESET,
"%s():111111111111111111111111======>start to down the driver\n",
__func__);
if (!netif_queue_stopped(dev))
netif_stop_queue(dev);
rtl92e_irq_disable(dev);
del_timer_sync(&priv->watch_dog_timer);
_rtl92e_cancel_deferred_work(priv);
rtl92e_dm_deinit(dev);
rtllib_stop_scan_syncro(ieee);
if (ieee->state == RTLLIB_LINKED) {
SEM_DOWN_IEEE_WX(&ieee->wx_sem);
netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
rtllib_stop_send_beacons(priv->rtllib);
del_timer_sync(&ieee->associate_timer);
cancel_delayed_work(&ieee->associate_retry_wq);
rtllib_stop_scan(ieee);
netif_carrier_off(dev);
SEM_UP_IEEE_WX(&ieee->wx_sem);
} else {
netdev_info(dev, "ieee->state is NOT LINKED\n");
rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
}
rtl92e_dm_backup_state(dev);
up(&priv->wx_sem);
RT_TRACE(COMP_RESET,
"%s():<==========down process is finished\n",
__func__);
RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
__func__);
reset_status = _rtl92e_up(dev, true);
RT_TRACE(COMP_RESET,
"%s():<===========up process is finished\n", __func__);
if (reset_status == -1) {
if (reset_times < 3) {
reset_times++;
goto RESET_START;
} else {
netdev_warn(dev, "%s(): Reset Failed\n",
__func__);
}
}
ieee->is_silent_reset = 1;
spin_lock_irqsave(&priv->rf_ps_lock, flag);
priv->RFChangeInProgress = false;
spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
rtl92e_enable_hw_security_config(dev);
if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
IW_MODE_INFRA) {
ieee->set_chan(ieee->dev,
ieee->current_network.channel);
schedule_work(&ieee->associate_complete_wq);
} else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
IW_MODE_ADHOC) {
ieee->set_chan(ieee->dev,
ieee->current_network.channel);
ieee->link_change(ieee->dev);
notify_wx_assoc_event(ieee);
rtllib_start_send_beacons(ieee);
netif_carrier_on(ieee->dev);
}
rtl92e_cam_restore(dev);
rtl92e_dm_restore_state(dev);
END:
priv->ResetProgress = RESET_TYPE_NORESET;
priv->reset_count++;
priv->bForcedSilentReset = false;
priv->bResetInProgress = false;
rtl92e_writeb(dev, UFWP, 1);
RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
priv->reset_count);
}
}
static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
u32 *TotalRxDataNum)
{
u16 SlotIndex;
u8 i;
*TotalRxBcnNum = 0;
*TotalRxDataNum = 0;
SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
(priv->rtllib->LinkDetectInfo.SlotNum);
priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
*TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
*TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
}
}
static void _rtl92e_watchdog_wq_cb(void *data)
{
struct r8192_priv *priv = container_of_dwork_rsl(data,
struct r8192_priv, watch_dog_wq);
struct net_device *dev = priv->rtllib->dev;
struct rtllib_device *ieee = priv->rtllib;
enum reset_type ResetType = RESET_TYPE_NORESET;
static u8 check_reset_cnt;
unsigned long flags;
struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
(&(priv->rtllib->PowerSaveControl));
bool bBusyTraffic = false;
bool bHigherBusyTraffic = false;
bool bHigherBusyRxTraffic = false;
bool bEnterPS = false;
if (!priv->up || priv->bHwRadioOff)
return;
if (priv->rtllib->state >= RTLLIB_LINKED) {
if (priv->rtllib->CntAfterLink < 2)
priv->rtllib->CntAfterLink++;
} else {
priv->rtllib->CntAfterLink = 0;
}
rtl92e_dm_watchdog(dev);
if (rtllib_act_scanning(priv->rtllib, false) == false) {
if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
RTLLIB_NOLINK) &&
(ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
(!ieee->proto_stoppping) && !ieee->wx_set_enc) {
if ((ieee->PowerSaveControl.ReturnPoint ==
IPS_CALLBACK_NONE) &&
(!ieee->bNetPromiscuousMode)) {
RT_TRACE(COMP_PS,
"====================>haha: rtl92e_ips_enter()\n");
rtl92e_ips_enter(dev);
}
}
}
if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
bBusyTraffic = true;
if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
bHigherBusyTraffic = true;
if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
bHigherBusyRxTraffic = true;
else
bHigherBusyRxTraffic = false;
}
if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
(ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
bEnterPS = false;
else
bEnterPS = true;
if (ieee->current_network.beacon_interval < 95)
bEnterPS = false;
if (bEnterPS)
rtl92e_leisure_ps_enter(dev);
else
rtl92e_leisure_ps_leave(dev);
} else {
RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
rtl92e_leisure_ps_leave(dev);
}
ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
u32 TotalRxBcnNum = 0;
u32 TotalRxDataNum = 0;
_rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
if ((TotalRxBcnNum+TotalRxDataNum) == 0)
priv->check_roaming_cnt++;
else
priv->check_roaming_cnt = 0;
if (priv->check_roaming_cnt > 0) {
if (ieee->eRFPowerState == eRfOff)
netdev_info(dev, "%s(): RF is off\n", __func__);
netdev_info(dev,
"===>%s(): AP is power off, chan:%d, connect another one\n",
__func__, priv->chan);
ieee->state = RTLLIB_ASSOCIATING;
RemovePeerTS(priv->rtllib,
priv->rtllib->current_network.bssid);
ieee->is_roaming = true;
ieee->is_set_key = false;
ieee->link_change(dev);
if (ieee->LedControlHandler)
ieee->LedControlHandler(ieee->dev,
LED_CTL_START_TO_LINK);
notify_wx_assoc_event(ieee);
if (!(ieee->rtllib_ap_sec_type(ieee) &
(SEC_ALG_CCMP|SEC_ALG_TKIP)))
schedule_delayed_work(
&ieee->associate_procedure_wq, 0);
priv->check_roaming_cnt = 0;
}
ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
}
spin_lock_irqsave(&priv->tx_lock, flags);
if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
(!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
ResetType = _rtl92e_if_check_reset(dev);
check_reset_cnt = 3;
}
spin_unlock_irqrestore(&priv->tx_lock, flags);
if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
priv->ResetProgress = RESET_TYPE_NORMAL;
RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
return;
}
if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
ResetType == RESET_TYPE_SILENT)))
_rtl92e_if_silent_reset(dev);
priv->force_reset = false;
priv->bForcedSilentReset = false;
priv->bResetInProgress = false;
RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
}
static void _rtl92e_watchdog_timer_cb(unsigned long data)
{
struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
schedule_delayed_work(&priv->watch_dog_wq, 0);
mod_timer(&priv->watch_dog_timer, jiffies +
msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
}
/****************************************************************************
---------------------------- NIC TX/RX STUFF---------------------------
*****************************************************************************/
void rtl92e_rx_enable(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
priv->ops->rx_enable(dev);
}
void rtl92e_tx_enable(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
priv->ops->tx_enable(dev);
rtllib_reset_queue(priv->rtllib);
}
static void _rtl92e_free_rx_ring(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
int i, rx_queue_idx;
for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
rx_queue_idx++) {
for (i = 0; i < priv->rxringcount; i++) {
struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
if (!skb)
continue;
pci_unmap_single(priv->pdev,
*((dma_addr_t *)skb->cb),
priv->rxbuffersize, PCI_DMA_FROMDEVICE);
kfree_skb(skb);
}
pci_free_consistent(priv->pdev,
sizeof(*priv->rx_ring[rx_queue_idx]) *
priv->rxringcount,
priv->rx_ring[rx_queue_idx],
priv->rx_ring_dma[rx_queue_idx]);
priv->rx_ring[rx_queue_idx] = NULL;
}
}
static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
while (skb_queue_len(&ring->queue)) {
struct tx_desc *entry = &ring->desc[ring->idx];
struct sk_buff *skb = __skb_dequeue(&ring->queue);
pci_unmap_single(priv->pdev, entry->TxBuffAddr,
skb->len, PCI_DMA_TODEVICE);
kfree_skb(skb);
ring->idx = (ring->idx + 1) % ring->entries;
}
pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
ring->desc, ring->dma);
ring->desc = NULL;
}
static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
int rate)
{
struct r8192_priv *priv = rtllib_priv(dev);
int ret;
struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
MAX_DEV_ADDR_SIZE);
u8 queue_index = tcb_desc->queue_index;
if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
priv->bResetInProgress) {
kfree_skb(skb);
return;
}
if (queue_index == TXCMD_QUEUE)
netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
__func__);
memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
skb_push(skb, priv->rtllib->tx_headroom);
ret = _rtl92e_tx(dev, skb);
if (ret != 0)
kfree_skb(skb);
if (queue_index != MGNT_QUEUE) {
priv->rtllib->stats.tx_bytes += (skb->len -
priv->rtllib->tx_headroom);
priv->rtllib->stats.tx_packets++;
}
}
static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
int ret;
struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
MAX_DEV_ADDR_SIZE);
u8 queue_index = tcb_desc->queue_index;
if (queue_index != TXCMD_QUEUE) {
if ((priv->rtllib->eRFPowerState == eRfOff) ||
!priv->up || priv->bResetInProgress) {
kfree_skb(skb);
return 0;
}
}
memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
if (queue_index == TXCMD_QUEUE) {
_rtl92e_tx_cmd(dev, skb);
return 0;
}
tcb_desc->RATRIndex = 7;
tcb_desc->bTxDisableRateFallBack = 1;
tcb_desc->bTxUseDriverAssingedRate = 1;
tcb_desc->bTxEnableFwCalcDur = 1;
skb_push(skb, priv->rtllib->tx_headroom);
ret = _rtl92e_tx(dev, skb);
if (ret != 0)
kfree_skb(skb);
return ret;
}
static void _rtl92e_tx_isr(struct net_device *dev, int prio)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
while (skb_queue_len(&ring->queue)) {
struct tx_desc *entry = &ring->desc[ring->idx];
struct sk_buff *skb;
if (prio != BEACON_QUEUE) {
if (entry->OWN)
return;
ring->idx = (ring->idx + 1) % ring->entries;
}
skb = __skb_dequeue(&ring->queue);
pci_unmap_single(priv->pdev, entry->TxBuffAddr,
skb->len, PCI_DMA_TODEVICE);
kfree_skb(skb);
}
if (prio != BEACON_QUEUE)
tasklet_schedule(&priv->irq_tx_tasklet);
}
static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtl8192_tx_ring *ring;
struct tx_desc_cmd *entry;
unsigned int idx;
struct cb_desc *tcb_desc;
unsigned long flags;
spin_lock_irqsave(&priv->irq_th_lock, flags);
ring = &priv->tx_ring[TXCMD_QUEUE];
idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
entry = (struct tx_desc_cmd *) &ring->desc[idx];
tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
__skb_queue_tail(&ring->queue, skb);
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
}
static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtl8192_tx_ring *ring;
unsigned long flags;
struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
MAX_DEV_ADDR_SIZE);
struct tx_desc *pdesc = NULL;
struct rtllib_hdr_1addr *header = NULL;
u16 fc = 0, type = 0, stype = 0;
bool multi_addr = false, broad_addr = false, uni_addr = false;
u8 *pda_addr = NULL;
int idx;
u32 fwinfo_size = 0;
if (priv->bdisable_nic) {
netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
__func__);
return skb->len;
}
priv->rtllib->bAwakePktSent = true;
fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
fc = le16_to_cpu(header->frame_ctl);
type = WLAN_FC_GET_TYPE(fc);
stype = WLAN_FC_GET_STYPE(fc);
pda_addr = header->addr1;
if (is_broadcast_ether_addr(pda_addr))
broad_addr = true;
else if (is_multicast_ether_addr(pda_addr))
multi_addr = true;
else
uni_addr = true;
if (uni_addr)
priv->stats.txbytesunicast += skb->len - fwinfo_size;
else if (multi_addr)
priv->stats.txbytesmulticast += skb->len - fwinfo_size;
else
priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
spin_lock_irqsave(&priv->irq_th_lock, flags);
ring = &priv->tx_ring[tcb_desc->queue_index];
if (tcb_desc->queue_index != BEACON_QUEUE)
idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
else
idx = 0;
pdesc = &ring->desc[idx];
if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
netdev_warn(dev,
"No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
tcb_desc->queue_index, ring->idx, idx, skb->len,
skb_queue_len(&ring->queue));
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
return skb->len;
}
if (type == RTLLIB_FTYPE_DATA) {
if (priv->rtllib->LedControlHandler)
priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
}
priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
__skb_queue_tail(&ring->queue, skb);
pdesc->OWN = 1;
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
netif_trans_update(dev);
rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
return 0;
}
static short _rtl92e_alloc_rx_ring(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rx_desc *entry = NULL;
int i, rx_queue_idx;
for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
&priv->rx_ring_dma[rx_queue_idx]);
if (!priv->rx_ring[rx_queue_idx] ||
(unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
netdev_warn(dev, "Cannot allocate RX ring\n");
return -ENOMEM;
}
priv->rx_idx[rx_queue_idx] = 0;
for (i = 0; i < priv->rxringcount; i++) {
struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
dma_addr_t *mapping;
entry = &priv->rx_ring[rx_queue_idx][i];
if (!skb)
return 0;
skb->dev = dev;
priv->rx_buf[rx_queue_idx][i] = skb;
mapping = (dma_addr_t *)skb->cb;
*mapping = pci_map_single(priv->pdev,
skb_tail_pointer_rsl(skb),
priv->rxbuffersize,
PCI_DMA_FROMDEVICE);
if (pci_dma_mapping_error(priv->pdev, *mapping)) {
dev_kfree_skb_any(skb);
return -1;
}
entry->BufferAddress = *mapping;
entry->Length = priv->rxbuffersize;
entry->OWN = 1;
}
if (entry)
entry->EOR = 1;
}
return 0;
}
static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
unsigned int entries)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct tx_desc *ring;
dma_addr_t dma;
int i;
ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
if (!ring || (unsigned long)ring & 0xFF) {
netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
return -ENOMEM;
}
priv->tx_ring[prio].desc = ring;
priv->tx_ring[prio].dma = dma;
priv->tx_ring[prio].idx = 0;
priv->tx_ring[prio].entries = entries;
skb_queue_head_init(&priv->tx_ring[prio].queue);
for (i = 0; i < entries; i++)
ring[i].NextDescAddress =
(u32)dma + ((i + 1) % entries) *
sizeof(*ring);
return 0;
}
static short _rtl92e_pci_initdescring(struct net_device *dev)
{
u32 ret;
int i;
struct r8192_priv *priv = rtllib_priv(dev);
ret = _rtl92e_alloc_rx_ring(dev);
if (ret)
return ret;
for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
if (ret)
goto err_free_rings;
}
return 0;
err_free_rings:
_rtl92e_free_rx_ring(dev);
for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
if (priv->tx_ring[i].desc)
_rtl92e_free_tx_ring(dev, i);
return 1;
}
void rtl92e_reset_desc_ring(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
int i, rx_queue_idx;
unsigned long flags = 0;
for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
if (priv->rx_ring[rx_queue_idx]) {
struct rx_desc *entry = NULL;
for (i = 0; i < priv->rxringcount; i++) {
entry = &priv->rx_ring[rx_queue_idx][i];
entry->OWN = 1;
}
priv->rx_idx[rx_queue_idx] = 0;
}
}
spin_lock_irqsave(&priv->irq_th_lock, flags);
for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
if (priv->tx_ring[i].desc) {
struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
while (skb_queue_len(&ring->queue)) {
struct tx_desc *entry = &ring->desc[ring->idx];
struct sk_buff *skb =
__skb_dequeue(&ring->queue);
pci_unmap_single(priv->pdev,
entry->TxBuffAddr,
skb->len, PCI_DMA_TODEVICE);
kfree_skb(skb);
ring->idx = (ring->idx + 1) % ring->entries;
}
ring->idx = 0;
}
}
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
}
void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
struct rtllib_rx_stats *stats)
{
struct r8192_priv *priv = rtllib_priv(dev);
if (stats->bIsAMPDU && !stats->bFirstMPDU)
stats->mac_time = priv->LastRxDescTSF;
else
priv->LastRxDescTSF = stats->mac_time;
}
long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
{
long signal_power;
signal_power = (long)((signal_strength_index + 1) >> 1);
signal_power -= 95;
return signal_power;
}
void rtl92e_update_rx_statistics(struct r8192_priv *priv,
struct rtllib_rx_stats *pprevious_stats)
{
int weighting = 0;
if (priv->stats.recv_signal_power == 0)
priv->stats.recv_signal_power =
pprevious_stats->RecvSignalPower;
if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
weighting = 5;
else if (pprevious_stats->RecvSignalPower <
priv->stats.recv_signal_power)
weighting = (-5);
priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
pprevious_stats->RecvSignalPower +
weighting) / 6;
}
u8 rtl92e_rx_db_to_percent(char antpower)
{
if ((antpower <= -100) || (antpower >= 20))
return 0;
else if (antpower >= 0)
return 100;
else
return 100 + antpower;
} /* QueryRxPwrPercentage */
u8 rtl92e_evm_db_to_percent(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;
}
void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
struct rtllib_rx_stats *ptarget_stats)
{
ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
}
static void _rtl92e_rx_normal(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_hdr_1addr *rtllib_hdr = NULL;
bool unicast_packet = false;
bool bLedBlinking = true;
u16 fc = 0, type = 0;
u32 skb_len = 0;
int rx_queue_idx = RX_MPDU_QUEUE;
struct rtllib_rx_stats stats = {
.signal = 0,
.noise = (u8) -98,
.rate = 0,
.freq = RTLLIB_24GHZ_BAND,
};
unsigned int count = priv->rxringcount;
stats.nic_type = NIC_8192E;
while (count--) {
struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
[priv->rx_idx[rx_queue_idx]];
struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
[priv->rx_idx[rx_queue_idx]];
struct sk_buff *new_skb;
if (pdesc->OWN)
return;
if (!priv->ops->rx_query_status_descriptor(dev, &stats,
pdesc, skb))
goto done;
new_skb = dev_alloc_skb(priv->rxbuffersize);
/* if allocation of new skb failed - drop current packet
* and reuse skb
*/
if (unlikely(!new_skb))
goto done;
pci_unmap_single(priv->pdev,
*((dma_addr_t *)skb->cb),
priv->rxbuffersize,
PCI_DMA_FROMDEVICE);
skb_put(skb, pdesc->Length);
skb_reserve(skb, stats.RxDrvInfoSize +
stats.RxBufShift);
skb_trim(skb, skb->len - 4/*sCrcLng*/);
rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
/* unicast packet */
unicast_packet = true;
}
fc = le16_to_cpu(rtllib_hdr->frame_ctl);
type = WLAN_FC_GET_TYPE(fc);
if (type == RTLLIB_FTYPE_MGMT)
bLedBlinking = false;
if (bLedBlinking)
if (priv->rtllib->LedControlHandler)
priv->rtllib->LedControlHandler(dev,
LED_CTL_RX);
if (stats.bCRC) {
if (type != RTLLIB_FTYPE_MGMT)
priv->stats.rxdatacrcerr++;
else
priv->stats.rxmgmtcrcerr++;
}
skb_len = skb->len;
if (!rtllib_rx(priv->rtllib, skb, &stats)) {
dev_kfree_skb_any(skb);
} else {
priv->stats.rxok++;
if (unicast_packet)
priv->stats.rxbytesunicast += skb_len;
}
skb = new_skb;
skb->dev = dev;
priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
skb;
*((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
skb_tail_pointer_rsl(skb),
priv->rxbuffersize,
PCI_DMA_FROMDEVICE);
if (pci_dma_mapping_error(priv->pdev,
*((dma_addr_t *)skb->cb))) {
dev_kfree_skb_any(skb);
return;
}
done:
pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
pdesc->OWN = 1;
pdesc->Length = priv->rxbuffersize;
if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
pdesc->EOR = 1;
priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
priv->rxringcount;
}
}
static void _rtl92e_tx_resume(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_device *ieee = priv->rtllib;
struct sk_buff *skb;
int queue_index;
for (queue_index = BK_QUEUE;
queue_index < MAX_QUEUE_SIZE; queue_index++) {
while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
(priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
ieee->softmac_data_hard_start_xmit(skb, dev, 0);
}
}
}
static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
{
_rtl92e_tx_resume(priv->rtllib->dev);
}
static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
{
_rtl92e_rx_normal(priv->rtllib->dev);
rtl92e_writel(priv->rtllib->dev, INTA_MASK,
rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
}
/****************************************************************************
---------------------------- NIC START/CLOSE STUFF---------------------------
*****************************************************************************/
static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
{
cancel_delayed_work_sync(&priv->watch_dog_wq);
cancel_delayed_work_sync(&priv->update_beacon_wq);
cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
cancel_work_sync(&priv->reset_wq);
cancel_work_sync(&priv->qos_activate);
}
static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
{
if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
return -1;
return 0;
}
static int _rtl92e_open(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
int ret;
down(&priv->wx_sem);
ret = _rtl92e_try_up(dev);
up(&priv->wx_sem);
return ret;
}
static int _rtl92e_try_up(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
if (priv->up == 1)
return -1;
return _rtl92e_up(dev, false);
}
static int _rtl92e_close(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
int ret;
if ((rtllib_act_scanning(priv->rtllib, false)) &&
!(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
rtllib_stop_scan(priv->rtllib);
}
down(&priv->wx_sem);
ret = _rtl92e_down(dev, true);
up(&priv->wx_sem);
return ret;
}
static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
{
if (_rtl92e_sta_down(dev, shutdownrf) == -1)
return -1;
return 0;
}
void rtl92e_commit(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
if (priv->up == 0)
return;
rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
rtl92e_irq_disable(dev);
priv->ops->stop_adapter(dev, true);
_rtl92e_up(dev, false);
}
static void _rtl92e_restart(void *data)
{
struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
reset_wq);
struct net_device *dev = priv->rtllib->dev;
down(&priv->wx_sem);
rtl92e_commit(dev);
up(&priv->wx_sem);
}
static void _rtl92e_set_multicast(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
short promisc;
promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
priv->promisc = promisc;
}
static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
{
struct r8192_priv *priv = rtllib_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 _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct r8192_priv *priv = rtllib_priv(dev);
struct iwreq *wrq = (struct iwreq *)rq;
int ret = -1;
struct rtllib_device *ieee = priv->rtllib;
u32 key[4];
const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
struct iw_point *p = &wrq->u.data;
struct ieee_param *ipw = NULL;
down(&priv->wx_sem);
switch (cmd) {
case RTL_IOCTL_WPA_SUPPLICANT:
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;
}
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) {
if (is_zero_ether_addr(ieee->ap_mac_addr))
ieee->iw_mode = IW_MODE_ADHOC;
memcpy((u8 *)key, ipw->u.crypt.key, 16);
rtl92e_enable_hw_security_config(dev);
rtl92e_set_swcam(dev, 4,
ipw->u.crypt.idx,
ieee->pairwise_key_type,
(u8 *)ieee->ap_mac_addr,
0, key, 0);
rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
ieee->pairwise_key_type,
(u8 *)ieee->ap_mac_addr,
0, key);
if (ieee->iw_mode == IW_MODE_ADHOC) {
rtl92e_set_swcam(dev,
ipw->u.crypt.idx,
ipw->u.crypt.idx,
ieee->pairwise_key_type,
(u8 *)ieee->ap_mac_addr,
0, key, 0);
rtl92e_set_key(dev,
ipw->u.crypt.idx,
ipw->u.crypt.idx,
ieee->pairwise_key_type,
(u8 *)ieee->ap_mac_addr,
0, key);
}
}
if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
&& ieee->pHTInfo->bCurrentHTSupport) {
rtl92e_writeb(dev, 0x173, 1);
}
} 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) {
rtl92e_set_swcam(dev, ipw->u.crypt.idx,
ipw->u.crypt.idx,
ieee->group_key_type,
broadcast_addr, 0, key,
0);
rtl92e_set_key(dev, ipw->u.crypt.idx,
ipw->u.crypt.idx,
ieee->group_key_type,
broadcast_addr, 0, key);
}
}
}
ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
0);
kfree(ipw);
break;
default:
ret = -EOPNOTSUPP;
break;
}
out:
up(&priv->wx_sem);
return ret;
}
static irqreturn_t _rtl92e_irq(int irq, void *netdev)
{
struct net_device *dev = netdev;
struct r8192_priv *priv = rtllib_priv(dev);
unsigned long flags;
u32 inta;
u32 intb;
intb = 0;
if (priv->irq_enabled == 0)
goto done;
spin_lock_irqsave(&priv->irq_th_lock, flags);
priv->ops->interrupt_recognized(dev, &inta, &intb);
priv->stats.shints++;
if (!inta) {
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
goto done;
}
if (inta == 0xffff) {
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
goto done;
}
priv->stats.ints++;
if (!netif_running(dev)) {
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
goto done;
}
if (inta & IMR_TBDOK) {
RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
priv->stats.txbeaconokint++;
}
if (inta & IMR_TBDER) {
RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
priv->stats.txbeaconerr++;
}
if (inta & IMR_BDOK)
RT_TRACE(COMP_INTR, "beacon interrupt!\n");
if (inta & IMR_MGNTDOK) {
RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
priv->stats.txmanageokint++;
_rtl92e_tx_isr(dev, MGNT_QUEUE);
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
if (priv->rtllib->ack_tx_to_ieee) {
if (_rtl92e_is_tx_queue_empty(dev)) {
priv->rtllib->ack_tx_to_ieee = 0;
rtllib_ps_tx_ack(priv->rtllib, 1);
}
}
spin_lock_irqsave(&priv->irq_th_lock, flags);
}
if (inta & IMR_COMDOK) {
priv->stats.txcmdpktokint++;
_rtl92e_tx_isr(dev, TXCMD_QUEUE);
}
if (inta & IMR_HIGHDOK)
_rtl92e_tx_isr(dev, HIGH_QUEUE);
if (inta & IMR_ROK) {
priv->stats.rxint++;
priv->InterruptLog.nIMR_ROK++;
tasklet_schedule(&priv->irq_rx_tasklet);
}
if (inta & IMR_BcnInt) {
RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
}
if (inta & IMR_RDU) {
RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
priv->stats.rxrdu++;
rtl92e_writel(dev, INTA_MASK,
rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
tasklet_schedule(&priv->irq_rx_tasklet);
}
if (inta & IMR_RXFOVW) {
RT_TRACE(COMP_INTR, "rx overflow !\n");
priv->stats.rxoverflow++;
tasklet_schedule(&priv->irq_rx_tasklet);
}
if (inta & IMR_TXFOVW)
priv->stats.txoverflow++;
if (inta & IMR_BKDOK) {
RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
priv->stats.txbkokint++;
priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
_rtl92e_tx_isr(dev, BK_QUEUE);
}
if (inta & IMR_BEDOK) {
RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
priv->stats.txbeokint++;
priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
_rtl92e_tx_isr(dev, BE_QUEUE);
}
if (inta & IMR_VIDOK) {
RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
priv->stats.txviokint++;
priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
_rtl92e_tx_isr(dev, VI_QUEUE);
}
if (inta & IMR_VODOK) {
priv->stats.txvookint++;
RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
_rtl92e_tx_isr(dev, VO_QUEUE);
}
spin_unlock_irqrestore(&priv->irq_th_lock, flags);
done:
return IRQ_HANDLED;
}
/****************************************************************************
---------------------------- PCI_STUFF---------------------------
*****************************************************************************/
static const struct net_device_ops rtl8192_netdev_ops = {
.ndo_open = _rtl92e_open,
.ndo_stop = _rtl92e_close,
.ndo_tx_timeout = _rtl92e_tx_timeout,
.ndo_do_ioctl = _rtl92e_ioctl,
.ndo_set_rx_mode = _rtl92e_set_multicast,
.ndo_set_mac_address = _rtl92e_set_mac_adr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = eth_change_mtu,
.ndo_start_xmit = rtllib_xmit,
};
static int _rtl92e_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
unsigned long ioaddr = 0;
struct net_device *dev = NULL;
struct r8192_priv *priv = NULL;
struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
unsigned long pmem_start, pmem_len, pmem_flags;
int err = -ENOMEM;
u8 revision_id;
RT_TRACE(COMP_INIT, "Configuring chip resources");
if (pci_enable_device(pdev)) {
dev_err(&pdev->dev, "Failed to enable PCI device");
return -EIO;
}
pci_set_master(pdev);
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
dev_info(&pdev->dev,
"Unable to obtain 32bit DMA for consistent allocations\n");
goto err_pci_disable;
}
}
dev = alloc_rtllib(sizeof(struct r8192_priv));
if (!dev)
goto err_pci_disable;
err = -ENODEV;
pci_set_drvdata(pdev, dev);
SET_NETDEV_DEV(dev, &pdev->dev);
priv = rtllib_priv(dev);
priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
priv->pdev = pdev;
priv->rtllib->pdev = pdev;
if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
(pdev->subsystem_device == 0x3304))
priv->rtllib->bSupportRemoteWakeUp = 1;
else
priv->rtllib->bSupportRemoteWakeUp = 0;
pmem_start = pci_resource_start(pdev, 1);
pmem_len = pci_resource_len(pdev, 1);
pmem_flags = pci_resource_flags(pdev, 1);
if (!(pmem_flags & IORESOURCE_MEM)) {
netdev_err(dev, "region #1 not a MMIO resource, aborting");
goto err_rel_rtllib;
}
dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
pmem_start);
if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
netdev_err(dev, "request_mem_region failed!");
goto err_rel_rtllib;
}
ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
if (ioaddr == (unsigned long)NULL) {
netdev_err(dev, "ioremap failed!");
goto err_rel_mem;
}
dev->mem_start = ioaddr;
dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
pci_read_config_byte(pdev, 0x08, &revision_id);
/* If the revisionid is 0x10, the device uses rtl8192se. */
if (pdev->device == 0x8192 && revision_id == 0x10)
goto err_unmap;
priv->ops = ops;
if (rtl92e_check_adapter(pdev, dev) == false)
goto err_unmap;
dev->irq = pdev->irq;
priv->irq = 0;
dev->netdev_ops = &rtl8192_netdev_ops;
dev->wireless_handlers = &r8192_wx_handlers_def;
dev->ethtool_ops = &rtl819x_ethtool_ops;
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");
dev_alloc_name(dev, ifname);
}
RT_TRACE(COMP_INIT, "Driver probe completed1\n");
if (_rtl92e_init(dev) != 0) {
netdev_warn(dev, "Initialization failed");
goto err_free_irq;
}
netif_carrier_off(dev);
netif_stop_queue(dev);
if (register_netdev(dev))
goto err_free_irq;
RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
if (priv->polling_timer_on == 0)
rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
RT_TRACE(COMP_INIT, "Driver probe completed\n");
return 0;
err_free_irq:
free_irq(dev->irq, dev);
priv->irq = 0;
err_unmap:
iounmap((void __iomem *)ioaddr);
err_rel_mem:
release_mem_region(pmem_start, pmem_len);
err_rel_rtllib:
free_rtllib(dev);
err_pci_disable:
pci_disable_device(pdev);
return err;
}
static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct r8192_priv *priv;
u32 i;
if (dev) {
unregister_netdev(dev);
priv = rtllib_priv(dev);
del_timer_sync(&priv->gpio_polling_timer);
cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
priv->polling_timer_on = 0;
_rtl92e_down(dev, true);
rtl92e_dm_deinit(dev);
if (priv->pFirmware) {
vfree(priv->pFirmware);
priv->pFirmware = NULL;
}
_rtl92e_free_rx_ring(dev);
for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
_rtl92e_free_tx_ring(dev, i);
if (priv->irq) {
dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
free_irq(dev->irq, dev);
priv->irq = 0;
}
free_rtllib(dev);
if (dev->mem_start != 0) {
iounmap((void __iomem *)dev->mem_start);
release_mem_region(pci_resource_start(pdev, 1),
pci_resource_len(pdev, 1));
}
} else {
priv = rtllib_priv(dev);
}
pci_disable_device(pdev);
RT_TRACE(COMP_DOWN, "wlan driver removed\n");
}
bool rtl92e_enable_nic(struct net_device *dev)
{
bool init_status = true;
struct r8192_priv *priv = rtllib_priv(dev);
struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
(&(priv->rtllib->PowerSaveControl));
if (!priv->up) {
netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
priv->bdisable_nic = false;
return false;
}
RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
priv->bfirst_init = true;
init_status = priv->ops->initialize_adapter(dev);
if (!init_status) {
netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
priv->bdisable_nic = false;
return false;
}
RT_TRACE(COMP_INIT, "start adapter finished\n");
RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
priv->bfirst_init = false;
rtl92e_irq_enable(dev);
priv->bdisable_nic = false;
RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
return init_status;
}
bool rtl92e_disable_nic(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
u8 tmp_state = 0;
RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
priv->bdisable_nic = true;
tmp_state = priv->rtllib->state;
rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
priv->rtllib->state = tmp_state;
_rtl92e_cancel_deferred_work(priv);
rtl92e_irq_disable(dev);
priv->ops->stop_adapter(dev, false);
RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
return true;
}
module_pci_driver(rtl8192_pci_driver);
void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
{
struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
priv->polling_timer_on = 1;
schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
mod_timer(&priv->gpio_polling_timer, jiffies +
msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
}
/***************************************************************************
------------------- module init / exit stubs ----------------
****************************************************************************/
MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
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 WEP support(default use hw. set 0 to use software security)");
MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");