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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2009-2012 Realtek Corporation.*/
#include "../wifi.h"
#include "../pci.h"
#include "../base.h"
#include "../stats.h"
#include "../rtl8192d/reg.h"
#include "../rtl8192d/def.h"
#include "../rtl8192d/phy_common.h"
#include "../rtl8192d/trx_common.h"
#include "phy.h"
#include "trx.h"
#include "led.h"
static u8 _rtl92de_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
{
__le16 fc = rtl_get_fc(skb);
if (unlikely(ieee80211_is_beacon(fc)))
return QSLT_BEACON;
if (ieee80211_is_mgmt(fc))
return QSLT_MGNT;
return skb->priority;
}
static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
u8 *virtualaddress8)
{
__le32 *virtualaddress = (__le32 *)virtualaddress8;
memset(virtualaddress, 0, 8);
set_earlymode_pktnum(virtualaddress, ptcb_desc->empkt_num);
set_earlymode_len0(virtualaddress, ptcb_desc->empkt_len[0]);
set_earlymode_len1(virtualaddress, ptcb_desc->empkt_len[1]);
set_earlymode_len2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
set_earlymode_len2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
set_earlymode_len3(virtualaddress, ptcb_desc->empkt_len[3]);
set_earlymode_len4(virtualaddress, ptcb_desc->empkt_len[4]);
}
void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr, u8 *pdesc8,
u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
struct ieee80211_sta *sta,
struct sk_buff *skb,
u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
__le32 *pdesc = (__le32 *)pdesc8;
u16 seq_number;
__le16 fc = hdr->frame_control;
unsigned int buf_len = 0;
unsigned int skb_len = skb->len;
u8 fw_qsel = _rtl92de_map_hwqueue_to_fwqueue(skb, hw_queue);
bool firstseg = ((hdr->seq_ctrl &
cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
bool lastseg = ((hdr->frame_control &
cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
dma_addr_t mapping;
u8 bw_40 = 0;
if (mac->opmode == NL80211_IFTYPE_STATION) {
bw_40 = mac->bw_40;
} else if (mac->opmode == NL80211_IFTYPE_AP ||
mac->opmode == NL80211_IFTYPE_ADHOC) {
if (sta)
bw_40 = sta->deflink.bandwidth >= IEEE80211_STA_RX_BW_40;
}
seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
/* reserve 8 byte for AMPDU early mode */
if (rtlhal->earlymode_enable) {
skb_push(skb, EM_HDR_LEN);
memset(skb->data, 0, EM_HDR_LEN);
}
buf_len = skb->len;
mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, skb->len,
DMA_TO_DEVICE);
if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92d));
if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
firstseg = true;
lastseg = true;
}
if (firstseg) {
if (rtlhal->earlymode_enable) {
set_tx_desc_pkt_offset(pdesc, 1);
set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN +
EM_HDR_LEN);
if (ptcb_desc->empkt_num) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_LOUD,
"Insert 8 byte.pTcb->EMPktNum:%d\n",
ptcb_desc->empkt_num);
_rtl92de_insert_emcontent(ptcb_desc,
(u8 *)(skb->data));
}
} else {
set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
}
/* 5G have no CCK rate */
if (rtlhal->current_bandtype == BAND_ON_5G)
if (ptcb_desc->hw_rate < DESC_RATE6M)
ptcb_desc->hw_rate = DESC_RATE6M;
set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate);
if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
set_tx_desc_data_shortgi(pdesc, 1);
if (rtlhal->macphymode == DUALMAC_DUALPHY &&
ptcb_desc->hw_rate == DESC_RATEMCS7)
set_tx_desc_data_shortgi(pdesc, 1);
if (info->flags & IEEE80211_TX_CTL_AMPDU) {
set_tx_desc_agg_enable(pdesc, 1);
set_tx_desc_max_agg_num(pdesc, 0x14);
}
set_tx_desc_seq(pdesc, seq_number);
set_tx_desc_rts_enable(pdesc,
((ptcb_desc->rts_enable &&
!ptcb_desc->cts_enable) ? 1 : 0));
set_tx_desc_hw_rts_enable(pdesc, ((ptcb_desc->rts_enable
|| ptcb_desc->cts_enable) ? 1 : 0));
set_tx_desc_cts2self(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
set_tx_desc_rts_stbc(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
/* 5G have no CCK rate */
if (rtlhal->current_bandtype == BAND_ON_5G)
if (ptcb_desc->rts_rate < DESC_RATE6M)
ptcb_desc->rts_rate = DESC_RATE6M;
set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate);
set_tx_desc_rts_bw(pdesc, 0);
set_tx_desc_rts_sc(pdesc, ptcb_desc->rts_sc);
set_tx_desc_rts_short(pdesc, ((ptcb_desc->rts_rate <=
DESC_RATE54M) ?
(ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
(ptcb_desc->rts_use_shortgi ? 1 : 0)));
if (bw_40) {
if (ptcb_desc->packet_bw) {
set_tx_desc_data_bw(pdesc, 1);
set_tx_desc_tx_sub_carrier(pdesc, 3);
} else {
set_tx_desc_data_bw(pdesc, 0);
set_tx_desc_tx_sub_carrier(pdesc,
mac->cur_40_prime_sc);
}
} else {
set_tx_desc_data_bw(pdesc, 0);
set_tx_desc_tx_sub_carrier(pdesc, 0);
}
set_tx_desc_linip(pdesc, 0);
set_tx_desc_pkt_size(pdesc, (u16)skb_len);
if (sta) {
u8 ampdu_density = sta->deflink.ht_cap.ampdu_density;
set_tx_desc_ampdu_density(pdesc, ampdu_density);
}
if (info->control.hw_key) {
struct ieee80211_key_conf *keyconf;
keyconf = info->control.hw_key;
switch (keyconf->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
case WLAN_CIPHER_SUITE_TKIP:
set_tx_desc_sec_type(pdesc, 0x1);
break;
case WLAN_CIPHER_SUITE_CCMP:
set_tx_desc_sec_type(pdesc, 0x3);
break;
default:
set_tx_desc_sec_type(pdesc, 0x0);
break;
}
}
set_tx_desc_pkt_id(pdesc, 0);
set_tx_desc_queue_sel(pdesc, fw_qsel);
set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
set_tx_desc_disable_fb(pdesc, ptcb_desc->disable_ratefallback ?
1 : 0);
set_tx_desc_use_rate(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
/* Set TxRate and RTSRate in TxDesc */
/* This prevent Tx initial rate of new-coming packets */
/* from being overwritten by retried packet rate.*/
if (!ptcb_desc->use_driver_rate) {
set_tx_desc_rts_rate(pdesc, 0x08);
/* set_tx_desc_tx_rate(pdesc, 0x0b); */
}
if (ieee80211_is_data_qos(fc)) {
if (mac->rdg_en) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
"Enable RDG function\n");
set_tx_desc_rdg_enable(pdesc, 1);
set_tx_desc_htc(pdesc, 1);
}
}
}
set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
set_tx_desc_tx_buffer_size(pdesc, (u16)buf_len);
set_tx_desc_tx_buffer_address(pdesc, mapping);
if (rtlpriv->dm.useramask) {
set_tx_desc_rate_id(pdesc, ptcb_desc->ratr_index);
set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
} else {
set_tx_desc_rate_id(pdesc, 0xC + ptcb_desc->ratr_index);
set_tx_desc_macid(pdesc, ptcb_desc->ratr_index);
}
if (ieee80211_is_data_qos(fc))
set_tx_desc_qos(pdesc, 1);
if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
set_tx_desc_hwseq_en(pdesc, 1);
set_tx_desc_pkt_id(pdesc, 8);
}
set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
}
void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc8,
struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
u8 fw_queue = QSLT_BEACON;
struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
__le16 fc = hdr->frame_control;
__le32 *pdesc = (__le32 *)pdesc8;
dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
skb->len, DMA_TO_DEVICE);
if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
/* 5G have no CCK rate
* Caution: The macros below are multi-line expansions.
* The braces are needed no matter what checkpatch says
*/
if (rtlhal->current_bandtype == BAND_ON_5G) {
set_tx_desc_tx_rate(pdesc, DESC_RATE6M);
} else {
set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
}
set_tx_desc_seq(pdesc, 0);
set_tx_desc_linip(pdesc, 0);
set_tx_desc_queue_sel(pdesc, fw_queue);
set_tx_desc_first_seg(pdesc, 1);
set_tx_desc_last_seg(pdesc, 1);
set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
set_tx_desc_tx_buffer_address(pdesc, mapping);
set_tx_desc_rate_id(pdesc, 7);
set_tx_desc_macid(pdesc, 0);
set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
set_tx_desc_first_seg(pdesc, 1);
set_tx_desc_last_seg(pdesc, 1);
set_tx_desc_offset(pdesc, 0x20);
set_tx_desc_use_rate(pdesc, 1);
if (!ieee80211_is_data_qos(fc) && ppsc->fwctrl_lps) {
set_tx_desc_hwseq_en(pdesc, 1);
set_tx_desc_pkt_id(pdesc, 8);
}
RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
"H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
wmb();
set_tx_desc_own(pdesc, 1);
}
bool rtl92de_is_tx_desc_closed(struct ieee80211_hw *hw,
u8 hw_queue, u16 index)
{
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
u8 *entry = (u8 *)(&ring->desc[ring->idx]);
u8 own = (u8)rtl92d_get_desc(hw, entry, true, HW_DESC_OWN);
/* a beacon packet will only use the first
* descriptor by defaut, and the own bit may not
* be cleared by the hardware
*/
if (own)
return false;
return true;
}
void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
if (hw_queue == BEACON_QUEUE)
rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
else
rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
BIT(0) << (hw_queue));
}
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