void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
bool firstseg, bool lastseg, struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
/* Clear all status */
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
/* This bit indicate this packet is used for FW download. */
if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
/* For firmware downlaod we only need to set LINIP */
SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
/* 92SE must set as 1 for firmware download HW DMA error */
SET_TX_DESC_FIRST_SEG(pdesc, 1);
SET_TX_DESC_LAST_SEG(pdesc, 1);
/* 92SE need not to set TX packet size when firmware download */
SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
wmb();
SET_TX_DESC_OWN(pdesc, 1);
} else { /* H2C Command Desc format (Host TXCMD) */
/* 92SE must set as 1 for firmware download HW DMA error */
SET_TX_DESC_FIRST_SEG(pdesc, 1);
SET_TX_DESC_LAST_SEG(pdesc, 1);
SET_TX_DESC_OFFSET(pdesc, 0x20);
/* Buffer size + command header */
SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
/* Fixed queue of H2C command */
SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
wmb();
SET_TX_DESC_OWN(pdesc, 1);
}
}
static void __r92su_tx_fill_header(tx_hdr *tx_hdr, unsigned int len,
bool first, bool last, unsigned int qsel)
{
SET_TX_DESC_PKT_SIZE(tx_hdr, len);
SET_TX_DESC_OFFSET(tx_hdr, TX_DESC_SIZE);
SET_TX_DESC_LAST_SEG(tx_hdr, last);
SET_TX_DESC_FIRST_SEG(tx_hdr, first);
SET_TX_DESC_OWN(tx_hdr, 1);
SET_TX_DESC_QUEUE_SEL(tx_hdr, qsel);
}
void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr, u8 *pdesc_tx,
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(rtl_priv(hw));
u8 *pdesc = pdesc_tx;
u16 seq_number;
__le16 fc = hdr->frame_control;
u8 reserved_macid = 0;
u8 fw_qsel = rtl92s_map_hwqueue_to_fwqueue(skb, hw_queue);
bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
bool lastseg = (!(hdr->frame_control &
cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
u8 bw_40 = 0;
if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error\n");
return;
}
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->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);
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
firstseg = true;
lastseg = true;
}
if (firstseg) {
if (rtlpriv->dm.useramask) {
/* set txdesc macId */
if (ptcb_desc->mac_id < 32) {
SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
reserved_macid |= ptcb_desc->mac_id;
}
}
SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
DESC_RATEMCS0) ? 1 : 0));
if (rtlhal->version == VERSION_8192S_ACUT) {
if (ptcb_desc->hw_rate == DESC_RATE1M ||
ptcb_desc->hw_rate == DESC_RATE2M ||
ptcb_desc->hw_rate == DESC_RATE5_5M ||
ptcb_desc->hw_rate == DESC_RATE11M) {
ptcb_desc->hw_rate = DESC_RATE12M;
}
}
SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
SET_TX_DESC_TX_SHORT(pdesc, 0);
/* Aggregation related */
if (info->flags & IEEE80211_TX_CTL_AMPDU)
SET_TX_DESC_AGG_ENABLE(pdesc, 1);
/* For AMPDU, we must insert SSN into TX_DESC */
SET_TX_DESC_SEQ(pdesc, seq_number);
/* Protection mode related */
/* For 92S, if RTS/CTS are set, HW will execute RTS. */
/* We choose only one protection mode to execute */
SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
!ptcb_desc->cts_enable) ? 1 : 0));
SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
1 : 0));
SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
SET_TX_DESC_RTS_SUB_CARRIER(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)));
/* Set Bandwidth and sub-channel settings. */
if (bw_40) {
if (ptcb_desc->packet_bw) {
SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
/* use duplicated mode */
SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
} else {
SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
SET_TX_DESC_TX_SUB_CARRIER(pdesc,
mac->cur_40_prime_sc);
}
} else {
SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
}
/* 3 Fill necessary field in First Descriptor */
/*DWORD 0*/
SET_TX_DESC_LINIP(pdesc, 0);
SET_TX_DESC_OFFSET(pdesc, 32);
SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
/*DWORD 1*/
SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
/* Fill security related */
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:
SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
break;
case WLAN_CIPHER_SUITE_TKIP:
SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
break;
case WLAN_CIPHER_SUITE_CCMP:
SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
break;
default:
SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
break;
}
}
/* Set Packet ID */
SET_TX_DESC_PACKET_ID(pdesc, 0);
/* We will assign magement queue to BK. */
SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
/* Alwasy enable all rate fallback range */
SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
/* Fix: I don't know why hw use 6.5M to tx when set it */
SET_TX_DESC_USER_RATE(pdesc,
ptcb_desc->use_driver_rate ? 1 : 0);
/* Set NON_QOS bit. */
if (!ieee80211_is_data_qos(fc))
SET_TX_DESC_NON_QOS(pdesc, 1);
}
/* Fill fields that are required to be initialized
* in all of the descriptors */
/*DWORD 0 */
SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
/* DWORD 7 */
SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
/* DOWRD 8 */
SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
}