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core.c
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core.c
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// SPDX-License-Identifier: GPL-2.0
/* Copyright( c ) 2009-2012 Realtek Corporation.*/
#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>
#include <linux/export.h>
#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 );
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;
rtl_dbg( rtlpriv, COMP_ERR, DBG_LOUD,
"Firmware callback routine entered!\n" );
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;
goto exit;
}
found_alt:
if ( firmware->size > rtlpriv->max_fw_size ) {
pr_err( "Firmware is too big!\n" );
release_firmware( firmware );
goto exit;
}
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 );
exit:
complete( &rtlpriv->firmware_loading_complete );
}
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 );
}
static void rtl_op_tx( struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb )
{
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 ( !rtlpriv->intf_ops->waitq_insert( hw, control->sta, skb ) )
rtlpriv->intf_ops->adapter_tx( hw, control->sta, skb, &tcb_desc );
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 ) {
rtl_dbg( rtlpriv, COMP_ERR, DBG_WARNING,
"vif has been set!! mac->vif = 0x%p\n", mac->vif );
return -EOPNOTSUPP;
}
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
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;
fallthrough;
case NL80211_IFTYPE_STATION:
if ( mac->beacon_enabled == 1 ) {
rtl_dbg( 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:
rtl_dbg( 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;
fallthrough;
case NL80211_IFTYPE_AP:
rtl_dbg( 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:
rtl_dbg( 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 ) {
rtl_dbg( 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 );
rtl_dbg( 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;
struct cfg80211_pkt_pattern *patterns = wow->patterns;
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 ) {
rtl_dbg( 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 );
rtl_dbg( 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 ) );
rtl_dbg( 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, true );
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 );
struct rtl_mac *mac = rtl_mac( rtl_priv( hw ) );
time64_t now;
rtl_dbg( rtlpriv, COMP_POWER, DBG_DMESG, "\n" );
rtlhal->driver_is_goingto_unload = false;
rtlhal->enter_pnp_sleep = false;
rtlhal->wake_from_pnp_sleep = true;
/* to resolve 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 );
ieee80211_resume_disconnect( mac->vif );
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;
mutex_lock( &rtlpriv->locks.conf_mutex );
if ( changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL ) { /* BIT( 2 )*/
rtl_dbg( 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 );
}
/*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 ) {
rtl_dbg( 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 ) {
struct ieee80211_channel *channel = hw->conf.chandef.chan;
enum nl80211_chan_width width = hw->conf.chandef.width;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
u8 wide_chan = ( u8 ) channel->hw_value;
/* channel_type is for 20&40M */
if ( width < NL80211_CHAN_WIDTH_80 )
channel_type =
cfg80211_get_chandef_type( &hw->conf.chandef );
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 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 ( 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 {
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 broadcast 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];
rtl_dbg( 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] );
rtl_dbg( 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];
rtl_dbg( rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive FCS error frame\n" );
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
rtl_dbg( 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];
rtl_dbg( rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive control frame.\n" );
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
rtl_dbg( 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];
rtl_dbg( rtlpriv, COMP_MAC80211, DBG_LOUD,
"Enable receive other BSS's frame.\n" );
} else {
mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
rtl_dbg( 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_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 );
if ( rtlhal->current_bandtype == BAND_ON_2_4G ) {
sta_entry->wireless_mode = WIRELESS_MODE_G;
if ( sta->deflink.supp_rates[0] <= 0xf )
sta_entry->wireless_mode = WIRELESS_MODE_B;
if ( sta->deflink.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->deflink.ht_cap.ht_supported )
sta_entry->wireless_mode = WIRELESS_MODE_N_5G;
if ( sta->deflink.vht_cap.vht_supported )
sta_entry->wireless_mode = WIRELESS_MODE_AC_5G;
if ( vif->type == NL80211_IFTYPE_ADHOC )
sta_entry->wireless_mode = WIRELESS_MODE_A;
}
/*disable cck rate for p2p*/
if ( mac->p2p )
sta->deflink.supp_rates[0] &= 0xfffffff0;
memcpy( sta_entry->mac_addr, sta->addr, ETH_ALEN );
rtl_dbg( rtlpriv, COMP_MAC80211, DBG_DMESG,
"Add sta addr is %pM\n", sta->addr );
rtlpriv->cfg->ops->update_rate_tbl( hw, sta, 0, true );
}
return 0;
}
static int rtl_op_sta_remove( struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_sta_info *sta_entry;
if ( sta ) {
rtl_dbg( rtlpriv, COMP_MAC80211, DBG_DMESG,
"Remove sta addr is %pM\n", sta->addr );
sta_entry = ( struct rtl_sta_info * )sta->drv_priv;
sta_entry->wireless_mode = 0;
sta_entry->ratr_index = 0;
spin_lock_bh( &rtlpriv->locks.entry_list_lock );
list_del( &sta_entry->list );
spin_unlock_bh( &rtlpriv->locks.entry_list_lock );
}
return 0;
}
static int _rtl_get_hal_qnum( u16 queue )
{
int qnum;
switch ( queue ) {
case 0:
qnum = AC3_VO;
break;
case 1:
qnum = AC2_VI;
break;
case 2:
qnum = AC0_BE;
break;
case 3:
qnum = AC1_BK;
break;
default:
qnum = AC0_BE;
break;
}
return qnum;
}
/*
*for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
*for rtl819x BE = 0, BK = 1, VI = 2, VO = 3
*/
static int rtl_op_conf_tx( struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
unsigned int link_id, u16 queue,
const struct ieee80211_tx_queue_params *param )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_mac *mac = rtl_mac( rtl_priv( hw ) );
int aci;
if ( queue >= AC_MAX ) {
rtl_dbg( rtlpriv, COMP_ERR, DBG_WARNING,
"queue number %d is incorrect!\n", queue );
return -EINVAL;
}
aci = _rtl_get_hal_qnum( queue );
mac->ac[aci].aifs = param->aifs;