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core.c
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core.c
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/******************************************************************************
*
* Copyright(c) 2009-2012 Realtek Corporation.
*
* 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>
* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
* Hsinchu 300, Taiwan.
*
* Larry Finger <Larry.Finger@lwfinger.net>
*
*****************************************************************************/
#include "wifi.h"
#include "core.h"
#include "cam.h"
#include "base.h"
#include "ps.h"
#include "pwrseqcmd.h"
#include "btcoexist/rtl_btc.h"
#include <linux/firmware.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
#include <linux/export.h>
#endif
#include <net/cfg80211.h>
u8 channel5g[CHANNEL_MAX_NUMBER_5G] = {
36, 38, 40, 42, 44, 46, 48, /* Band 1 */
52, 54, 56, 58, 60, 62, 64, /* Band 2 */
100, 102, 104, 106, 108, 110, 112, /* Band 3 */
116, 118, 120, 122, 124, 126, 128, /* Band 3 */
132, 134, 136, 138, 140, 142, 144, /* Band 3 */
149, 151, 153, 155, 157, 159, 161, /* Band 4 */
165, 167, 169, 171, 173, 175, 177 /* Band 4 */
};
EXPORT_SYMBOL(channel5g);
u8 channel5g_80m[CHANNEL_MAX_NUMBER_5G_80M] = {
42, 58, 106, 122, 138, 155, 171
};
EXPORT_SYMBOL(channel5g_80m);
int show_it_bb;
EXPORT_SYMBOL(show_it_bb);
int show_it_mac;
EXPORT_SYMBOL(show_it_mac);
void rtl_addr_delay(u32 addr)
{
if (addr == 0xfe)
mdelay(50);
else if (addr == 0xfd)
msleep(5);
else if (addr == 0xfc)
msleep(1);
else if (addr == 0xfb)
usleep_range(50, 100);
else if (addr == 0xfa)
usleep_range(5, 10);
else if (addr == 0xf9)
usleep_range(1, 2);
}
EXPORT_SYMBOL(rtl_addr_delay);
void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
u32 mask, u32 data)
{
if (addr >= 0xf9 && addr <= 0xfe) {
rtl_addr_delay(addr);
} else {
rtl_set_rfreg(hw, rfpath, addr, mask, data);
udelay(1);
}
}
EXPORT_SYMBOL(rtl_rfreg_delay);
void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
{
if (addr >= 0xf9 && addr <= 0xfe) {
rtl_addr_delay(addr);
} else {
rtl_set_bbreg(hw, addr, MASKDWORD, data);
udelay(1);
}
}
EXPORT_SYMBOL(rtl_bb_delay);
static void rtl_fw_do_work(const struct firmware *firmware, void *context,
bool is_wow)
{
struct ieee80211_hw *hw = context;
struct rtl_priv *rtlpriv = rtl_priv(hw);
int err;
RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
"Firmware callback routine entered!\n");
complete(&rtlpriv->firmware_loading_complete);
if (!firmware) {
if (rtlpriv->cfg->alt_fw_name) {
err = request_firmware(&firmware,
rtlpriv->cfg->alt_fw_name,
rtlpriv->io.dev);
pr_info("Loading alternative firmware %s\n",
rtlpriv->cfg->alt_fw_name);
if (!err)
goto found_alt;
}
pr_err("Selected firmware is not available\n");
rtlpriv->max_fw_size = 0;
return;
}
found_alt:
if (firmware->size > rtlpriv->max_fw_size) {
pr_err("Firmware is too big!\n");
release_firmware(firmware);
return;
}
if (!is_wow) {
memcpy(rtlpriv->rtlhal.pfirmware, firmware->data,
firmware->size);
rtlpriv->rtlhal.fwsize = firmware->size;
} else {
memcpy(rtlpriv->rtlhal.wowlan_firmware, firmware->data,
firmware->size);
rtlpriv->rtlhal.wowlan_fwsize = firmware->size;
}
release_firmware(firmware);
}
void rtl_fw_cb(const struct firmware *firmware, void *context)
{
rtl_fw_do_work(firmware, context, false);
}
EXPORT_SYMBOL(rtl_fw_cb);
void rtl_wowlan_fw_cb(const struct firmware *firmware, void *context)
{
rtl_fw_do_work(firmware, context, true);
}
EXPORT_SYMBOL(rtl_wowlan_fw_cb);
/*mutex for start & stop is must here. */
static int rtl_op_start(struct ieee80211_hw *hw)
{
int err = 0;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
if (!is_hal_stop(rtlhal))
return 0;
if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
return 0;
mutex_lock(&rtlpriv->locks.conf_mutex);
err = rtlpriv->intf_ops->adapter_start(hw);
if (!err)
rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
mutex_unlock(&rtlpriv->locks.conf_mutex);
return err;
}
static void rtl_op_stop(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
bool support_remote_wakeup = false;
if (is_hal_stop(rtlhal))
return;
rtlpriv->cfg->ops->get_hw_reg(hw, HAL_DEF_WOWLAN,
(u8 *)(&support_remote_wakeup));
/* here is must, because adhoc do stop and start,
* but stop with RFOFF may cause something wrong,
* like adhoc TP
*/
if (unlikely(ppsc->rfpwr_state == ERFOFF))
rtl_ips_nic_on(hw);
mutex_lock(&rtlpriv->locks.conf_mutex);
/* if wowlan supported, DON'T clear connected info */
if (!(support_remote_wakeup &&
rtlhal->enter_pnp_sleep)) {
mac->link_state = MAC80211_NOLINK;
eth_zero_addr(mac->bssid);
mac->vendor = PEER_UNKNOWN;
/* reset sec info */
rtl_cam_reset_sec_info(hw);
rtl_deinit_deferred_work(hw, false);
}
rtlpriv->intf_ops->adapter_stop(hw);
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
#else
static void rtl_op_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
#endif
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
struct rtl_tcb_desc tcb_desc;
memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
goto err_free;
if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
goto err_free;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
if (!rtlpriv->intf_ops->waitq_insert(hw, skb))
rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
#else
if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
#endif
return;
err_free:
dev_kfree_skb_any(skb);
}
static int rtl_op_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
int err = 0;
u8 retry_limit = 0x30;
if (mac->vif) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
"vif has been set!! mac->vif = 0x%p\n", mac->vif);
return -EOPNOTSUPP;
}
/*This flag is not defined before kernel 3.4*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0))
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
#endif
rtl_ips_nic_on(hw);
mutex_lock(&rtlpriv->locks.conf_mutex);
switch (ieee80211_vif_type_p2p(vif)) {
case NL80211_IFTYPE_P2P_CLIENT:
mac->p2p = P2P_ROLE_CLIENT;
/*fall through*/
case NL80211_IFTYPE_STATION:
if (mac->beacon_enabled == 1) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"NL80211_IFTYPE_STATION\n");
mac->beacon_enabled = 0;
rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
rtlpriv->cfg->maps[RTL_IBSS_INT_MASKS]);
}
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"NL80211_IFTYPE_ADHOC\n");
mac->link_state = MAC80211_LINKED;
rtlpriv->cfg->ops->set_bcn_reg(hw);
if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
mac->basic_rates = 0xfff;
else
mac->basic_rates = 0xff0;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
(u8 *)(&mac->basic_rates));
retry_limit = 0x07;
break;
case NL80211_IFTYPE_P2P_GO:
mac->p2p = P2P_ROLE_GO;
/*fall through*/
case NL80211_IFTYPE_AP:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"NL80211_IFTYPE_AP\n");
mac->link_state = MAC80211_LINKED;
rtlpriv->cfg->ops->set_bcn_reg(hw);
if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
mac->basic_rates = 0xfff;
else
mac->basic_rates = 0xff0;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
(u8 *)(&mac->basic_rates));
retry_limit = 0x07;
break;
case NL80211_IFTYPE_MESH_POINT:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"NL80211_IFTYPE_MESH_POINT\n");
mac->link_state = MAC80211_LINKED;
rtlpriv->cfg->ops->set_bcn_reg(hw);
if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
mac->basic_rates = 0xfff;
else
mac->basic_rates = 0xff0;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
(u8 *)(&mac->basic_rates));
retry_limit = 0x07;
break;
default:
pr_err("operation mode %d is not supported!\n",
vif->type);
err = -EOPNOTSUPP;
goto out;
}
if (mac->p2p) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"p2p role %x\n", vif->type);
mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
(u8 *)(&mac->basic_rates));
}
mac->vif = vif;
mac->opmode = vif->type;
rtlpriv->cfg->ops->set_network_type(hw, vif->type);
memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
mac->retry_long = retry_limit;
mac->retry_short = retry_limit;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
(u8 *)(&retry_limit));
out:
mutex_unlock(&rtlpriv->locks.conf_mutex);
return err;
}
static void rtl_op_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
mutex_lock(&rtlpriv->locks.conf_mutex);
/* Free beacon resources */
if (vif->type == NL80211_IFTYPE_AP ||
vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MESH_POINT) {
if (mac->beacon_enabled == 1) {
mac->beacon_enabled = 0;
rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
rtlpriv->cfg->maps[RTL_IBSS_INT_MASKS]);
}
}
/*
*Note: We assume NL80211_IFTYPE_UNSPECIFIED as
*NO LINK for our hardware.
*/
mac->p2p = 0;
mac->vif = NULL;
mac->link_state = MAC80211_NOLINK;
eth_zero_addr(mac->bssid);
mac->vendor = PEER_UNKNOWN;
mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
mutex_unlock(&rtlpriv->locks.conf_mutex);
}
static int rtl_op_change_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum nl80211_iftype new_type, bool p2p)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
int ret;
rtl_op_remove_interface(hw, vif);
vif->type = new_type;
vif->p2p = p2p;
ret = rtl_op_add_interface(hw, vif);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"p2p %x\n", p2p);
return ret;
}
#ifdef CONFIG_PM
static u16 crc16_ccitt(u8 data, u16 crc)
{
u8 shift_in, data_bit, crc_bit11, crc_bit4, crc_bit15;
u8 i;
u16 result;
for (i = 0; i < 8; i++) {
crc_bit15 = ((crc & BIT(15)) ? 1 : 0);
data_bit = (data & (BIT(0) << i) ? 1 : 0);
shift_in = crc_bit15 ^ data_bit;
result = crc << 1;
if (shift_in == 0)
result &= (~BIT(0));
else
result |= BIT(0);
crc_bit11 = ((crc & BIT(11)) ? 1 : 0) ^ shift_in;
if (crc_bit11 == 0)
result &= (~BIT(12));
else
result |= BIT(12);
crc_bit4 = ((crc & BIT(4)) ? 1 : 0) ^ shift_in;
if (crc_bit4 == 0)
result &= (~BIT(5));
else
result |= BIT(5);
crc = result;
}
return crc;
}
static u16 _calculate_wol_pattern_crc(u8 *pattern, u16 len)
{
u16 crc = 0xffff;
u32 i;
for (i = 0; i < len; i++)
crc = crc16_ccitt(pattern[i], crc);
crc = ~crc;
return crc;
}
static void _rtl_add_wowlan_patterns(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wow)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = &rtlpriv->mac80211;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
struct cfg80211_pkt_pattern *patterns = wow->patterns;
#else
struct cfg80211_wowlan_trig_pkt_pattern *patterns = wow->patterns;
#endif
struct rtl_wow_pattern rtl_pattern;
const u8 *pattern_os, *mask_os;
u8 mask[MAX_WOL_BIT_MASK_SIZE] = {0};
u8 content[MAX_WOL_PATTERN_SIZE] = {0};
u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u8 multicast_addr1[2] = {0x33, 0x33};
u8 multicast_addr2[3] = {0x01, 0x00, 0x5e};
u8 i, mask_len;
u16 j, len;
for (i = 0; i < wow->n_patterns; i++) {
memset(&rtl_pattern, 0, sizeof(struct rtl_wow_pattern));
memset(mask, 0, MAX_WOL_BIT_MASK_SIZE);
if (patterns[i].pattern_len < 0 ||
patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {
RT_TRACE(rtlpriv, COMP_POWER, DBG_WARNING,
"Pattern[%d] is too long\n", i);
continue;
}
pattern_os = patterns[i].pattern;
mask_len = DIV_ROUND_UP(patterns[i].pattern_len, 8);
mask_os = patterns[i].mask;
RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
"pattern content\n", pattern_os,
patterns[i].pattern_len);
RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
"mask content\n", mask_os, mask_len);
/* 1. unicast? multicast? or broadcast? */
if (memcmp(pattern_os, broadcast_addr, 6) == 0)
rtl_pattern.type = BROADCAST_PATTERN;
else if (memcmp(pattern_os, multicast_addr1, 2) == 0 ||
memcmp(pattern_os, multicast_addr2, 3) == 0)
rtl_pattern.type = MULTICAST_PATTERN;
else if (memcmp(pattern_os, mac->mac_addr, 6) == 0)
rtl_pattern.type = UNICAST_PATTERN;
else
rtl_pattern.type = UNKNOWN_TYPE;
/* 2. translate mask_from_os to mask_for_hw */
/******************************************************************************
* pattern from OS uses 'ethenet frame', like this:
| 6 | 6 | 2 | 20 | Variable | 4 |
|--------+--------+------+-----------+------------+-----|
| 802.3 Mac Header | IP Header | TCP Packet | FCS |
| DA | SA | Type |
* BUT, packet catched by our HW is in '802.11 frame', begin from LLC,
| 24 or 30 | 6 | 2 | 20 | Variable | 4 |
|-------------------+--------+------+-----------+------------+-----|
| 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS |
| Others | Tpye |
* Therefore, we need translate mask_from_OS to mask_to_hw.
* We should left-shift mask by 6 bits, then set the new bit[0~5] = 0,
* because new mask[0~5] means 'SA', but our HW packet begins from LLC,
* bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match.
******************************************************************************/
/* Shift 6 bits */
for (j = 0; j < mask_len - 1; j++) {
mask[j] = mask_os[j] >> 6;
mask[j] |= (mask_os[j + 1] & 0x3F) << 2;
}
mask[j] = (mask_os[j] >> 6) & 0x3F;
/* Set bit 0-5 to zero */
mask[0] &= 0xC0;
RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
"mask to hw\n", mask, mask_len);
for (j = 0; j < (MAX_WOL_BIT_MASK_SIZE + 1) / 4; j++) {
rtl_pattern.mask[j] = mask[j * 4];
rtl_pattern.mask[j] |= (mask[j * 4 + 1] << 8);
rtl_pattern.mask[j] |= (mask[j * 4 + 2] << 16);
rtl_pattern.mask[j] |= (mask[j * 4 + 3] << 24);
}
/* To get the wake up pattern from the mask.
* We do not count first 12 bits which means
* DA[6] and SA[6] in the pattern to match HW design.
*/
len = 0;
for (j = 12; j < patterns[i].pattern_len; j++) {
if ((mask_os[j / 8] >> (j % 8)) & 0x01) {
content[len] = pattern_os[j];
len++;
}
}
RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
"pattern to hw\n", content, len);
/* 3. calculate crc */
rtl_pattern.crc = _calculate_wol_pattern_crc(content, len);
RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
"CRC_Remainder = 0x%x\n", rtl_pattern.crc);
/* 4. write crc & mask_for_hw to hw */
rtlpriv->cfg->ops->add_wowlan_pattern(hw, &rtl_pattern, i);
}
rtl_write_byte(rtlpriv, 0x698, wow->n_patterns);
}
static int rtl_op_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wow)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG, "\n");
if (WARN_ON(!wow))
return -EINVAL;
/* to resolve s4 can not wake up*/
rtlhal->last_suspend_sec = ktime_get_real_seconds();
if ((ppsc->wo_wlan_mode & WAKE_ON_PATTERN_MATCH) && wow->n_patterns)
_rtl_add_wowlan_patterns(hw, wow);
rtlhal->driver_is_goingto_unload = true;
rtlhal->enter_pnp_sleep = true;
rtl_lps_leave(hw);
rtl_op_stop(hw);
device_set_wakeup_enable(wiphy_dev(hw->wiphy), true);
return 0;
}
static int rtl_op_resume(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0))
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
#endif
time64_t now;
RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG, "\n");
rtlhal->driver_is_goingto_unload = false;
rtlhal->enter_pnp_sleep = false;
rtlhal->wake_from_pnp_sleep = true;
/* to resovle s4 can not wake up*/
now = ktime_get_real_seconds();
if (now - rtlhal->last_suspend_sec < 5)
return -1;
rtl_op_start(hw);
device_set_wakeup_enable(wiphy_dev(hw->wiphy), false);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0))
ieee80211_resume_disconnect(mac->vif);
#endif
rtlhal->wake_from_pnp_sleep = false;
return 0;
}
#endif
static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
struct ieee80211_conf *conf = &hw->conf;
if (mac->skip_scan)
return 1;
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { /* BIT(2)*/
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
}
/*For IPS */
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
if (hw->conf.flags & IEEE80211_CONF_IDLE)
rtl_ips_nic_off(hw);
else
rtl_ips_nic_on(hw);
} else {
/*
*although rfoff may not cause by ips, but we will
*check the reason in set_rf_power_state function
*/
if (unlikely(ppsc->rfpwr_state == ERFOFF))
rtl_ips_nic_on(hw);
}
mutex_lock(&rtlpriv->locks.conf_mutex);
/*For LPS */
if ((changed & IEEE80211_CONF_CHANGE_PS) &&
rtlpriv->psc.swctrl_lps && !rtlpriv->psc.fwctrl_lps) {
cancel_delayed_work(&rtlpriv->works.ps_work);
cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
if (conf->flags & IEEE80211_CONF_PS) {
rtlpriv->psc.sw_ps_enabled = true;
/* sleep here is must, or we may recv the beacon and
* cause mac80211 into wrong ps state, this will cause
* power save nullfunc send fail, and further cause
* pkt loss, So sleep must quickly but not immediatly
* because that will cause nullfunc send by mac80211
* fail, and cause pkt loss, we have tested that 5mA
* is worked very well */
if (!rtlpriv->psc.multi_buffered)
queue_delayed_work(rtlpriv->works.rtl_wq,
&rtlpriv->works.ps_work,
MSECS(5));
} else {
rtl_swlps_rf_awake(hw);
rtlpriv->psc.sw_ps_enabled = false;
}
}
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
hw->conf.long_frame_max_tx_count);
/* brought up everything changes (changed == ~0) indicates first
* open, so use our default value instead of that of wiphy.
*/
if (changed != ~0) {
mac->retry_long = hw->conf.long_frame_max_tx_count;
mac->retry_short = hw->conf.long_frame_max_tx_count;
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
(u8 *)(&hw->conf.long_frame_max_tx_count));
}
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
!rtlpriv->proximity.proxim_on) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
struct ieee80211_channel *channel = hw->conf.chandef.chan;
enum nl80211_chan_width width = hw->conf.chandef.width;
#else
struct ieee80211_channel *channel = hw->conf.channel;
#endif
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
u8 wide_chan = (u8) channel->hw_value;
/* channel_type is for 20&40M */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
if (width < NL80211_CHAN_WIDTH_80)
channel_type =
cfg80211_get_chandef_type(&hw->conf.chandef);
#else
channel_type = hw->conf.channel_type;
#endif
if (mac->act_scanning)
mac->n_channels++;
if (rtlpriv->dm.supp_phymode_switch &&
mac->link_state < MAC80211_LINKED &&
!mac->act_scanning) {
if (rtlpriv->cfg->ops->chk_switch_dmdp)
rtlpriv->cfg->ops->chk_switch_dmdp(hw);
}
/*
*because we should back channel to
*current_network.chan in in scanning,
*So if set_chan == current_network.chan
*we should set it.
*because mac80211 tell us wrong bw40
*info for cisco1253 bw20, so we modify
*it here based on UPPER & LOWER
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
if (width >= NL80211_CHAN_WIDTH_80) {
if (width == NL80211_CHAN_WIDTH_80) {
u32 center = hw->conf.chandef.center_freq1;
u32 primary =
(u32)hw->conf.chandef.chan->center_freq;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_80;
mac->bw_80 = true;
mac->bw_40 = true;
if (center > primary) {
mac->cur_80_prime_sc =
PRIME_CHNL_OFFSET_LOWER;
if (center - primary == 10) {
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_UPPER;
wide_chan += 2;
} else if (center - primary == 30) {
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_LOWER;
wide_chan += 6;
}
} else {
mac->cur_80_prime_sc =
PRIME_CHNL_OFFSET_UPPER;
if (primary - center == 10) {
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_LOWER;
wide_chan -= 2;
} else if (primary - center == 30) {
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_UPPER;
wide_chan -= 6;
}
}
}
} else {
#else
{
#endif
switch (channel_type) {
case NL80211_CHAN_HT20:
case NL80211_CHAN_NO_HT:
/* SC */
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_DONT_CARE;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_20;
mac->bw_40 = false;
mac->bw_80 = false;
break;
case NL80211_CHAN_HT40MINUS:
/* SC */
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_UPPER;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_20_40;
mac->bw_40 = true;
mac->bw_80 = false;
/*wide channel */
wide_chan -= 2;
break;
case NL80211_CHAN_HT40PLUS:
/* SC */
mac->cur_40_prime_sc =
PRIME_CHNL_OFFSET_LOWER;
rtlphy->current_chan_bw =
HT_CHANNEL_WIDTH_20_40;
mac->bw_40 = true;
mac->bw_80 = false;
/*wide channel */
wide_chan += 2;
break;
default:
mac->bw_40 = false;
mac->bw_80 = false;
pr_err("switch case %#x not processed\n",
channel_type);
break;
}
}
if (wide_chan <= 0)
wide_chan = 1;
/* In scanning, when before we offchannel we may send a ps=1
* null to AP, and then we may send a ps = 0 null to AP quickly,
* but first null may have caused AP to put lots of packet to
* hw tx buffer. These packets must be tx'd before we go off
* channel so we must delay more time to let AP flush these
* packets before going offchannel, or dis-association or
* delete BA will be caused by AP
*/
if (rtlpriv->mac80211.offchan_delay) {
rtlpriv->mac80211.offchan_delay = false;
mdelay(50);
}
rtlphy->current_channel = wide_chan;
rtlpriv->cfg->ops->switch_channel(hw);
rtlpriv->cfg->ops->set_channel_access(hw);
rtlpriv->cfg->ops->set_bw_mode(hw, channel_type);
}
mutex_unlock(&rtlpriv->locks.conf_mutex);
return 0;
}
static void rtl_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *new_flags, u64 multicast)
{
bool update_rcr = false;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
*new_flags &= RTL_SUPPORTED_FILTERS;
if (0 == changed_flags)
return;
/*TODO: we disable broadcase now, so enable here */
if (changed_flags & FIF_ALLMULTI) {
if (*new_flags & FIF_ALLMULTI) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
rtlpriv->cfg->maps[MAC_RCR_AB];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive multicast frame\n");
} else {
mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
rtlpriv->cfg->maps[MAC_RCR_AB]);
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Disable receive multicast frame\n");
}
update_rcr = true;
}
if (changed_flags & FIF_FCSFAIL) {
if (*new_flags & FIF_FCSFAIL) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive FCS error frame\n");
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Disable receive FCS error frame\n");
}
if (!update_rcr)
update_rcr = true;
}
/* if ssid not set to hw don't check bssid
* here just used for linked scanning, & linked
* and nolink check bssid is set in set network_type
*/
if (changed_flags & FIF_BCN_PRBRESP_PROMISC &&
mac->link_state >= MAC80211_LINKED) {
if (mac->opmode != NL80211_IFTYPE_AP &&
mac->opmode != NL80211_IFTYPE_MESH_POINT) {
if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
rtlpriv->cfg->ops->set_chk_bssid(hw, false);
else
rtlpriv->cfg->ops->set_chk_bssid(hw, true);
if (update_rcr)
update_rcr = false;
}
}
if (changed_flags & FIF_CONTROL) {
if (*new_flags & FIF_CONTROL) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive control frame.\n");
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Disable receive control frame.\n");
}
if (!update_rcr)
update_rcr = true;
}
if (changed_flags & FIF_OTHER_BSS) {
if (*new_flags & FIF_OTHER_BSS) {
mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive other BSS's frame.\n");
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
"Disable receive other BSS's frame.\n");
}
if (!update_rcr)
update_rcr = true;
}
if (update_rcr)
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR,
(u8 *)(&mac->rx_conf));
}
static int rtl_op_sta_add(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_phy *rtlphy = &(rtlpriv->phy);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_sta_info *sta_entry;
if (sta) {
sta_entry = (struct rtl_sta_info *)sta->drv_priv;
spin_lock_bh(&rtlpriv->locks.entry_list_lock);
list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
sta_entry->rtlpriv = rtlpriv;
if (rtlhal->current_bandtype == BAND_ON_2_4G) {
sta_entry->wireless_mode = WIRELESS_MODE_G;
if (sta->supp_rates[0] <= 0xf)
sta_entry->wireless_mode = WIRELESS_MODE_B;
if (sta->ht_cap.ht_supported)
sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
if (vif->type == NL80211_IFTYPE_ADHOC)
sta_entry->wireless_mode = WIRELESS_MODE_G;
} else if (rtlhal->current_bandtype == BAND_ON_5G) {
sta_entry->wireless_mode = WIRELESS_MODE_A;
if (sta->ht_cap.ht_supported)
sta_entry->wireless_mode = WIRELESS_MODE_N_5G;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0))
if (sta->vht_cap.vht_supported)
sta_entry->wireless_mode = WIRELESS_MODE_AC_5G;
#endif
if (vif->type == NL80211_IFTYPE_ADHOC)
sta_entry->wireless_mode = WIRELESS_MODE_A;
mac->mode = sta_entry->wireless_mode;
}
/*disable cck rate for p2p*/
if (mac->p2p)
sta->supp_rates[0] &= 0xfffffff0;
sta_entry->cmn_info.bw_mode = HT_CHANNEL_WIDTH_20;
if (sta->ht_cap.ht_supported) {
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
rtlphy->max_ht_chan_bw = HT_CHANNEL_WIDTH_20_40;
else
rtlphy->max_ht_chan_bw = HT_CHANNEL_WIDTH_20;
sta_entry->cmn_info.bw_mode = rtlphy->max_ht_chan_bw;
}