Release 4.7 drivers/staging/rtl8723au/hal/rtl8723au_recv.c
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* 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.
*
******************************************************************************/
#define _RTL8192CU_RECV_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <mlme_osdep.h>
#include <linux/ip.h>
#include <linux/if_ether.h>
#include <usb_ops.h>
#include <wifi.h>
#include <rtl8723a_hal.h>
int rtl8723au_init_recv_priv(struct rtw_adapter *padapter)
{
struct recv_priv *precvpriv = &padapter->recvpriv;
int i, size, res = _SUCCESS;
struct recv_buf *precvbuf;
unsigned long tmpaddr;
unsigned long alignment;
struct sk_buff *pskb;
tasklet_init(&precvpriv->recv_tasklet,
(void(*)(unsigned long))rtl8723au_recv_tasklet,
(unsigned long)padapter);
precvpriv->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!precvpriv->int_in_urb)
DBG_8723A("alloc_urb for interrupt in endpoint fail !!!!\n");
precvpriv->int_in_buf = kzalloc(USB_INTR_CONTENT_LENGTH, GFP_KERNEL);
if (!precvpriv->int_in_buf)
DBG_8723A("alloc_mem for interrupt in endpoint fail !!!!\n");
size = NR_RECVBUFF * sizeof(struct recv_buf);
precvpriv->precv_buf = kzalloc(size, GFP_KERNEL);
if (!precvpriv->precv_buf) {
res = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
"alloc recv_buf fail!\n");
goto exit;
}
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
INIT_LIST_HEAD(&precvbuf->list);
precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
if (!precvbuf->purb)
break;
precvbuf->adapter = padapter;
precvbuf++;
}
skb_queue_head_init(&precvpriv->rx_skb_queue);
skb_queue_head_init(&precvpriv->free_recv_skb_queue);
for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
size = MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ;
pskb = __netdev_alloc_skb(padapter->pnetdev, size, GFP_KERNEL);
if (pskb) {
pskb->dev = padapter->pnetdev;
tmpaddr = (unsigned long)pskb->data;
alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
}
pskb = NULL;
}
exit:
return res;
}
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void rtl8723au_free_recv_priv(struct rtw_adapter *padapter)
{
int i;
struct recv_buf *precvbuf;
struct recv_priv *precvpriv = &padapter->recvpriv;
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
usb_free_urb(precvbuf->purb);
if (precvbuf->pskb)
dev_kfree_skb_any(precvbuf->pskb);
precvbuf++;
}
kfree(precvpriv->precv_buf);
usb_free_urb(precvpriv->int_in_urb);
kfree(precvpriv->int_in_buf);
if (skb_queue_len(&precvpriv->rx_skb_queue))
DBG_8723A(KERN_WARNING "rx_skb_queue not empty\n");
skb_queue_purge(&precvpriv->rx_skb_queue);
if (skb_queue_len(&precvpriv->free_recv_skb_queue)) {
DBG_8723A(KERN_WARNING "free_recv_skb_queue not empty, %d\n",
skb_queue_len(&precvpriv->free_recv_skb_queue));
}
skb_queue_purge(&precvpriv->free_recv_skb_queue);
}
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struct recv_stat_cpu {
u32 rxdw0;
u32 rxdw1;
u32 rxdw2;
u32 rxdw3;
u32 rxdw4;
u32 rxdw5;
};
void update_recvframe_attrib(struct recv_frame *precvframe,
struct recv_stat *prxstat)
{
struct rx_pkt_attrib *pattrib;
struct recv_stat_cpu report;
struct rxreport_8723a *prxreport;
report.rxdw0 = le32_to_cpu(prxstat->rxdw0);
report.rxdw1 = le32_to_cpu(prxstat->rxdw1);
report.rxdw2 = le32_to_cpu(prxstat->rxdw2);
report.rxdw3 = le32_to_cpu(prxstat->rxdw3);
report.rxdw4 = le32_to_cpu(prxstat->rxdw4);
report.rxdw5 = le32_to_cpu(prxstat->rxdw5);
prxreport = (struct rxreport_8723a *)&report;
pattrib = &precvframe->attrib;
memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
/* update rx report to recv_frame attribute */
pattrib->pkt_len = (u16)prxreport->pktlen;
pattrib->drvinfo_sz = (u8)(prxreport->drvinfosize << 3);
pattrib->physt = (u8)prxreport->physt;
pattrib->crc_err = (u8)prxreport->crc32;
pattrib->icv_err = (u8)prxreport->icverr;
pattrib->bdecrypted = (u8)(prxreport->swdec ? 0 : 1);
pattrib->encrypt = (u8)prxreport->security;
pattrib->qos = (u8)prxreport->qos;
pattrib->priority = (u8)prxreport->tid;
pattrib->amsdu = (u8)prxreport->amsdu;
pattrib->seq_num = (u16)prxreport->seq;
pattrib->frag_num = (u8)prxreport->frag;
pattrib->mfrag = (u8)prxreport->mf;
pattrib->mdata = (u8)prxreport->md;
pattrib->mcs_rate = (u8)prxreport->rxmcs;
pattrib->rxht = (u8)prxreport->rxht;
}
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void update_recvframe_phyinfo(struct recv_frame *precvframe,
struct phy_stat *pphy_status)
{
struct rtw_adapter *padapter = precvframe->adapter;
struct rx_pkt_attrib *pattrib = &precvframe->attrib;
struct hal_data_8723a *pHalData = GET_HAL_DATA(padapter);
struct phy_info *pPHYInfo = &pattrib->phy_info;
struct odm_packet_info pkt_info;
u8 *sa = NULL, *da;
struct sta_priv *pstapriv;
struct sta_info *psta;
struct sk_buff *skb = precvframe->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
bool matchbssid = false;
u8 *bssid;
matchbssid = !ieee80211_is_ctl(hdr->frame_control) &&
!pattrib->icv_err && !pattrib->crc_err;
if (matchbssid) {
switch (hdr->frame_control &
cpu_to_le16(IEEE80211_FCTL_TODS |
IEEE80211_FCTL_FROMDS)) {
case cpu_to_le16(IEEE80211_FCTL_TODS):
bssid = hdr->addr1;
break;
case cpu_to_le16(IEEE80211_FCTL_FROMDS):
bssid = hdr->addr2;
break;
case cpu_to_le16(0):
bssid = hdr->addr3;
break;
default:
bssid = NULL;
matchbssid = false;
}
if (bssid)
matchbssid = ether_addr_equal(
get_bssid(&padapter->mlmepriv), bssid);
}
pkt_info.bPacketMatchBSSID = matchbssid;
da = ieee80211_get_DA(hdr);
pkt_info.bPacketToSelf = pkt_info.bPacketMatchBSSID &&
(!memcmp(da, myid(&padapter->eeprompriv), ETH_ALEN));
pkt_info.bPacketBeacon = pkt_info.bPacketMatchBSSID &&
ieee80211_is_beacon(hdr->frame_control);
pkt_info.StationID = 0xFF;
if (pkt_info.bPacketBeacon) {
if (check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE) == true)
sa = padapter->mlmepriv.cur_network.network.MacAddress;
/* to do Ad-hoc */
} else {
sa = ieee80211_get_SA(hdr);
}
pstapriv = &padapter->stapriv;
psta = rtw_get_stainfo23a(pstapriv, sa);
if (psta) {
pkt_info.StationID = psta->mac_id;
/* printk("%s ==> StationID(%d)\n", __func__, pkt_info.StationID); */
}
pkt_info.Rate = pattrib->mcs_rate;
ODM_PhyStatusQuery23a(&pHalData->odmpriv, pPHYInfo,
(u8 *)pphy_status, &pkt_info);
precvframe->psta = NULL;
if (pkt_info.bPacketMatchBSSID &&
(check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == true)) {
if (psta) {
precvframe->psta = psta;
rtl8723a_process_phy_info(padapter, precvframe);
}
} else if (pkt_info.bPacketToSelf || pkt_info.bPacketBeacon) {
if (check_fwstate(&padapter->mlmepriv,
WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) ==
true) {
if (psta)
precvframe->psta = psta;
}
rtl8723a_process_phy_info(padapter, precvframe);
}
}
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