vnt_fill_txkey a mac80211 repacement for s_vFillTxKey
vnt_generate_fifo_header mac80211 replacement for vGenerateFIFOHeader
vnt_beacon_make for making and despatching beacon.
vnt_beacon_enable to enabling beacon
struct vnt_tx_fifo_head is also added to replace typedef
struct tagSTxBufHead that will be removed later.
Signed-off-by: Malcolm Priestley <tvbox...@gmail.com>
---
drivers/staging/vt6655/desc.h | 1 +
drivers/staging/vt6655/rxtx.c | 311 ++++++++++++++++++++++++++++++++++++++++++
drivers/staging/vt6655/rxtx.h | 14 ++
3 files changed, 326 insertions(+)
diff --git a/drivers/staging/vt6655/desc.h b/drivers/staging/vt6655/desc.h
index 8f510c6..9068c3e 100644
--- a/drivers/staging/vt6655/desc.h
+++ b/drivers/staging/vt6655/desc.h
@@ -287,6 +287,7 @@ typedef struct tagTDES1 {
STDES1;
typedef struct tagDEVICE_TD_INFO {
+ void *mic_hdr;
struct sk_buff *skb;
unsigned char *buf;
dma_addr_t skb_dma;
diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c
index da7c0a8..99ce5a3 100644
--- a/drivers/staging/vt6655/rxtx.c
+++ b/drivers/staging/vt6655/rxtx.c
@@ -2994,3 +2994,314 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct
sk_buff *skb,
// Poll Transmit the adapter
MACvTransmit0(pDevice->PortOffset);
}
+
+static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
+ struct ieee80211_key_conf *tx_key,
+ struct sk_buff *skb, u16 payload_len,
+ struct vnt_mic_hdr *mic_hdr)
+{
+ struct ieee80211_key_seq seq;
+ u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
+
+ /* strip header and icv len from payload */
+ payload_len -= ieee80211_get_hdrlen_from_skb(skb);
+ payload_len -= tx_key->icv_len;
+
+ switch (tx_key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ memcpy(key_buffer, iv, 3);
+ memcpy(key_buffer + 3, tx_key->key, tx_key->keylen);
+
+ if (tx_key->keylen == WLAN_KEY_LEN_WEP40) {
+ memcpy(key_buffer + 8, iv, 3);
+ memcpy(key_buffer + 11,
+ tx_key->key, WLAN_KEY_LEN_WEP40);
+ }
+
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ ieee80211_get_tkip_p2k(tx_key, skb, key_buffer);
+
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+
+ if (!mic_hdr)
+ return;
+
+ mic_hdr->id = 0x59;
+ mic_hdr->payload_len = cpu_to_be16(payload_len);
+ ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
+
+ ieee80211_get_key_tx_seq(tx_key, &seq);
+
+ memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
+
+ if (ieee80211_has_a4(hdr->frame_control))
+ mic_hdr->hlen = cpu_to_be16(28);
+ else
+ mic_hdr->hlen = cpu_to_be16(22);
+
+ ether_addr_copy(mic_hdr->addr1, hdr->addr1);
+ ether_addr_copy(mic_hdr->addr2, hdr->addr2);
+ ether_addr_copy(mic_hdr->addr3, hdr->addr3);
+
+ mic_hdr->frame_control = cpu_to_le16(
+ le16_to_cpu(hdr->frame_control) & 0xc78f);
+ mic_hdr->seq_ctrl = cpu_to_le16(
+ le16_to_cpu(hdr->seq_ctrl) & 0xf);
+
+ if (ieee80211_has_a4(hdr->frame_control))
+ ether_addr_copy(mic_hdr->addr4, hdr->addr4);
+
+ memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP);
+
+ break;
+ default:
+ break;
+ }
+}
+
+int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx,
+ PSTxDesc head_td, struct sk_buff *skb)
+{
+ PDEVICE_TD_INFO td_info = head_td->pTDInfo;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_tx_rate *tx_rate = &info->control.rates[0];
+ struct ieee80211_rate *rate;
+ struct ieee80211_key_conf *tx_key;
+ struct ieee80211_hdr *hdr;
+ struct vnt_tx_fifo_head *tx_buffer_head =
+ (struct vnt_tx_fifo_head *)td_info->buf;
+ u32 frag;
+ u16 tx_body_size = skb->len, current_rate;
+ u8 pkt_type;
+ bool is_pspoll = false;
+
+ memset(tx_buffer_head, 0, sizeof(*tx_buffer_head));
+
+ hdr = (struct ieee80211_hdr *)(skb->data);
+
+ rate = ieee80211_get_tx_rate(priv->hw, info);
+
+ current_rate = rate->hw_value;
+ if (priv->wCurrentRate != current_rate &&
+ !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
+ priv->wCurrentRate = current_rate;
+
+ RFbSetPower(priv, priv->wCurrentRate,
+ priv->hw->conf.chandef.chan->hw_value);
+ }
+
+ if (current_rate > RATE_11M)
+ pkt_type = (u8)priv->byPacketType;
+ else
+ pkt_type = PK_TYPE_11B;
+
+ /*Set fifo controls */
+ if (pkt_type == PK_TYPE_11A)
+ tx_buffer_head->fifo_ctl = 0;
+ else if (pkt_type == PK_TYPE_11B)
+ tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11B);
+ else if (pkt_type == PK_TYPE_11GB)
+ tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GB);
+ else if (pkt_type == PK_TYPE_11GA)
+ tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GA);
+
+ /* generate interrupt */
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
+
+ if (!ieee80211_is_data(hdr->frame_control)) {
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_TMOEN);
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_ISDMA0);
+ tx_buffer_head->time_stamp =
+ cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
+ } else {
+ tx_buffer_head->time_stamp =
+ cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
+ }
+
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_NEEDACK);
+
+ if (ieee80211_has_retry(hdr->frame_control))
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LRETRY);
+
+ if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
+ priv->byPreambleType = PREAMBLE_SHORT;
+ else
+ priv->byPreambleType = PREAMBLE_LONG;
+
+ if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_RTS);
+
+ if (ieee80211_has_a4(hdr->frame_control)) {
+ tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LHEAD);
+ priv->bLongHeader = true;
+ }
+
+ if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
+ is_pspoll = true;
+
+ tx_buffer_head->frag_ctl =
+ cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10);
+
+ if (info->control.hw_key) {
+ tx_key = info->control.hw_key;
+
+ switch (info->control.hw_key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY);
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP);
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES);
+ default:
+ break;
+ }
+ }
+
+ tx_buffer_head->current_rate = cpu_to_le16(current_rate);
+
+ /* legacy rates TODO use ieee80211_tx_rate */
+ if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) {
+ if (priv->byAutoFBCtrl == AUTO_FB_0)
+ tx_buffer_head->fifo_ctl |=
+ cpu_to_le16(FIFOCTL_AUTO_FB_0);
+ else if (priv->byAutoFBCtrl == AUTO_FB_1)
+ tx_buffer_head->fifo_ctl |=
+ cpu_to_le16(FIFOCTL_AUTO_FB_1);
+
+ }
+
+ tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG);
+
+ s_cbFillTxBufHead(priv, pkt_type, (u8 *)tx_buffer_head, skb->len,
+ dma_idx, head_td, NULL, (u8 *)skb->data,
+ false, NULL, is_pspoll, &frag);
+
+ if (info->control.hw_key) {
+ tx_key = info->control.hw_key;
+ if (tx_key->keylen > 0)
+ vnt_fill_txkey(hdr, tx_buffer_head->tx_key,
+ tx_key, skb, tx_body_size, td_info->mic_hdr);
+ }
+
+ return 0;
+}
+
+static int vnt_beacon_xmit(struct vnt_private *priv,
+ struct sk_buff *skb)
+{
+ struct vnt_tx_short_buf_head *short_head =
+ (struct vnt_tx_short_buf_head *)priv->tx_beacon_bufs;
+ struct ieee80211_mgmt *mgmt_hdr = (struct ieee80211_mgmt *)
+ (priv->tx_beacon_bufs + sizeof(*short_head));
+ struct ieee80211_tx_info *info;
+ u32 frame_size = skb->len + 4;
+ u16 current_rate;
+
+ memset(priv->tx_beacon_bufs, 0, sizeof(*short_head));
+
+ if (priv->byBBType == BB_TYPE_11A) {
+ current_rate = RATE_6M;
+
+ /* Get SignalField,ServiceField,Length */
+ vnt_get_phy_field(priv, frame_size, current_rate,
+ PK_TYPE_11A, &short_head->ab);
+
+ /* Get Duration and TimeStampOff */
+ short_head->duration =
+ cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
+ frame_size, PK_TYPE_11A, current_rate,
+ false, 0, 0, 1, AUTO_FB_NONE));
+
+ short_head->time_stamp_off =
+ vnt_time_stamp_off(priv, current_rate);
+ } else {
+ current_rate = RATE_1M;
+ short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B);
+
+ /* Get SignalField,ServiceField,Length */
+ vnt_get_phy_field(priv, frame_size, current_rate,
+ PK_TYPE_11B, &short_head->ab);
+
+ /* Get Duration and TimeStampOff */
+ short_head->duration =
+ cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
+ frame_size, PK_TYPE_11B, current_rate,
+ false, 0, 0, 1, AUTO_FB_NONE));
+
+ short_head->time_stamp_off =
+ vnt_time_stamp_off(priv, current_rate);
+ }
+
+ short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
+
+ /* Copy Beacon */
+ memcpy(mgmt_hdr, skb->data, skb->len);
+
+ /* time stamp always 0 */
+ mgmt_hdr->u.beacon.timestamp = 0;
+
+ info = IEEE80211_SKB_CB(skb);
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr;
+
+ hdr->duration_id = 0;
+ hdr->seq_ctrl = cpu_to_le16(priv->wSeqCounter << 4);
+ }
+
+ priv->wSeqCounter++;
+ if (priv->wSeqCounter > 0x0fff)
+ priv->wSeqCounter = 0;
+
+ priv->wBCNBufLen = sizeof(*short_head) + skb->len;
+
+ MACvSetCurrBCNTxDescAddr(priv->PortOffset, priv->tx_beacon_dma);
+
+ MACvSetCurrBCNLength(priv->PortOffset, priv->wBCNBufLen);
+ /* Set auto Transmit on */
+ MACvRegBitsOn(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
+ /* Poll Transmit the adapter */
+ MACvTransmitBCN(priv->PortOffset);
+
+ return 0;
+}
+
+int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif)
+{
+ struct sk_buff *beacon;
+
+ beacon = ieee80211_beacon_get(priv->hw, vif);
+ if (!beacon)
+ return -ENOMEM;
+
+ if (vnt_beacon_xmit(priv, beacon)) {
+ ieee80211_free_txskb(priv->hw, beacon);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *conf)
+{
+ int ret;
+
+ VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
+
+ VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
+
+ CARDvSetFirstNextTBTT(priv->PortOffset, conf->beacon_int);
+
+ CARDbSetBeaconPeriod(priv, conf->beacon_int);
+
+ ret = vnt_beacon_make(priv, vif);
+
+ return ret;
+}
diff --git a/drivers/staging/vt6655/rxtx.h b/drivers/staging/vt6655/rxtx.h
index 8ee6288..145713d 100644
--- a/drivers/staging/vt6655/rxtx.h
+++ b/drivers/staging/vt6655/rxtx.h
@@ -173,6 +173,14 @@ struct vnt_cts_fb {
u16 reserved2;
} __packed;
+struct vnt_tx_fifo_head {
+ u8 tx_key[WLAN_KEY_LEN_CCMP];
+ __le16 fifo_ctl;
+ __le16 time_stamp;
+ __le16 frag_ctl;
+ __le16 current_rate;
+} __packed;
+
struct vnt_tx_short_buf_head {
__le16 fifo_ctl;
u16 time_stamp;
@@ -215,4 +223,10 @@ void vDMA0_tx_80211(struct vnt_private *, struct sk_buff
*skb,
CMD_STATUS csMgmt_xmit(struct vnt_private *, PSTxMgmtPacket pPacket);
CMD_STATUS csBeacon_xmit(struct vnt_private *, PSTxMgmtPacket pPacket);
+int vnt_generate_fifo_header(struct vnt_private *, u32,
+ PSTxDesc head_td, struct sk_buff *);
+int vnt_beacon_make(struct vnt_private *, struct ieee80211_vif *);
+int vnt_beacon_enable(struct vnt_private *, struct ieee80211_vif *,
+ struct ieee80211_bss_conf *);
+
#endif // __RXTX_H__
--
2.1.0
--
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