static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
{
struct rtl8180_priv *priv = dev->priv;
struct rtl8180_tx_ring *ring = &priv->tx_ring[prio];
while (skb_queue_len(&ring->queue)) {
struct rtl8180_tx_desc *entry = &ring->desc[ring->idx];
struct sk_buff *skb;
struct ieee80211_tx_info *info;
u32 flags = le32_to_cpu(entry->flags);
if (flags & RTL818X_TX_DESC_FLAG_OWN)
return;
ring->idx = (ring->idx + 1) % ring->entries;
skb = __skb_dequeue(&ring->queue);
pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf),
skb->len, PCI_DMA_TODEVICE);
info = IEEE80211_SKB_CB(skb);
ieee80211_tx_info_clear_status(info);
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
(flags & RTL818X_TX_DESC_FLAG_TX_OK))
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.rates[0].count = (flags & 0xFF) + 1;
ieee80211_tx_status_irqsafe(dev, skb);
if (ring->entries - skb_queue_len(&ring->queue) == 2)
ieee80211_wake_queue(dev, prio);
}
}
/*======================= tx =========================================*/
static void rtl_usb_cleanup(struct ieee80211_hw *hw)
{
u32 i;
struct sk_buff *_skb;
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
struct ieee80211_tx_info *txinfo;
SET_USB_STOP(rtlusb);
/* clean up rx stuff. */
_rtl_usb_cleanup_rx(hw);
/* clean up tx stuff */
for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
rtlusb->usb_tx_cleanup(hw, _skb);
txinfo = IEEE80211_SKB_CB(_skb);
ieee80211_tx_info_clear_status(txinfo);
txinfo->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(hw, _skb);
}
usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
}
usb_kill_anchored_urbs(&rtlusb->tx_submitted);
}
static int vnt_int_report_rate(struct vnt_private *priv,
PDEVICE_TD_INFO context, u8 tsr0, u8 tsr1)
{
struct vnt_tx_fifo_head *fifo_head;
struct ieee80211_tx_info *info;
struct ieee80211_rate *rate;
u16 fb_option;
u8 tx_retry = (tsr0 & TSR0_NCR);
s8 idx;
if (!context)
return -ENOMEM;
if (!context->skb)
return -EINVAL;
fifo_head = (struct vnt_tx_fifo_head *)context->buf;
fb_option = (le16_to_cpu(fifo_head->fifo_ctl) &
(FIFOCTL_AUTO_FB_0 | FIFOCTL_AUTO_FB_1));
info = IEEE80211_SKB_CB(context->skb);
idx = info->control.rates[0].idx;
if (fb_option && !(tsr1 & TSR1_TERR)) {
u8 tx_rate;
u8 retry = tx_retry;
rate = ieee80211_get_tx_rate(priv->hw, info);
tx_rate = rate->hw_value - RATE_18M;
if (retry > 4)
retry = 4;
if (fb_option & FIFOCTL_AUTO_FB_0)
tx_rate = fallback_rate0[tx_rate][retry];
else if (fb_option & FIFOCTL_AUTO_FB_1)
tx_rate = fallback_rate1[tx_rate][retry];
if (info->band == IEEE80211_BAND_5GHZ)
idx = tx_rate - RATE_6M;
else
idx = tx_rate;
}
ieee80211_tx_info_clear_status(info);
info->status.rates[0].count = tx_retry;
if (!(tsr1 & TSR1_TERR)) {
info->status.rates[0].idx = idx;
if (info->flags & IEEE80211_TX_CTL_NO_ACK)
info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
else
info->flags |= IEEE80211_TX_STAT_ACK;
}
return 0;
}
void mt7601u_tx_status(struct mt7601u_dev *dev, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
mt7601u_tx_skb_remove_dma_overhead(skb, info);
ieee80211_tx_info_clear_status(info);
info->status.rates[0].idx = -1;
info->flags |= IEEE80211_TX_STAT_ACK;
spin_lock(&dev->mac_lock);
ieee80211_tx_status(dev->hw, skb);
spin_unlock(&dev->mac_lock);
}
static void adm8211_interrupt_tci(struct ieee80211_hw *dev)
{
struct adm8211_priv *priv = dev->priv;
unsigned int dirty_tx;
spin_lock(&priv->lock);
for (dirty_tx = priv->dirty_tx; priv->cur_tx - dirty_tx; dirty_tx++) {
unsigned int entry = dirty_tx % priv->tx_ring_size;
u32 status = le32_to_cpu(priv->tx_ring[entry].status);
struct ieee80211_tx_info *txi;
struct adm8211_tx_ring_info *info;
struct sk_buff *skb;
if (status & TDES0_CONTROL_OWN ||
!(status & TDES0_CONTROL_DONE))
break;
info = &priv->tx_buffers[entry];
skb = info->skb;
txi = IEEE80211_SKB_CB(skb);
/* TODO: check TDES0_STATUS_TUF and TDES0_STATUS_TRO */
pci_unmap_single(priv->pdev, info->mapping,
info->skb->len, PCI_DMA_TODEVICE);
ieee80211_tx_info_clear_status(txi);
skb_pull(skb, sizeof(struct adm8211_tx_hdr));
memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen);
if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) &&
!(status & TDES0_STATUS_ES))
txi->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(dev, skb);
info->skb = NULL;
}
if (priv->cur_tx - dirty_tx < priv->tx_ring_size - 2)
ieee80211_wake_queue(dev, 0);
priv->dirty_tx = dirty_tx;
spin_unlock(&priv->lock);
}
static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
struct ieee80211_tx_info *txinfo;
rtlusb->usb_tx_post_hdl(hw, urb, skb);
skb_pull(skb, RTL_TX_HEADER_SIZE);
txinfo = IEEE80211_SKB_CB(skb);
ieee80211_tx_info_clear_status(txinfo);
txinfo->flags |= IEEE80211_TX_STAT_ACK;
if (urb->status) {
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
"Urb has error status 0x%X\n", urb->status);
goto out;
}
/* TODO: statistics */
out:
ieee80211_tx_status_irqsafe(hw, skb);
return urb->status;
}
static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
while (skb_queue_len(&ring->queue)) {
struct rtl_tx_desc *entry = &ring->desc[ring->idx];
struct sk_buff *skb;
struct ieee80211_tx_info *info;
u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true,
HW_DESC_OWN);
/*
*beacon packet will only use the first
*descriptor defautly,and the own may not
*be cleared by the hardware
*/
if (own)
return;
ring->idx = (ring->idx + 1) % ring->entries;
skb = __skb_dequeue(&ring->queue);
pci_unmap_single(rtlpci->pdev,
rtlpriv->cfg->ops->
get_desc((u8 *) entry, true,
HW_DESC_TXBUFF_ADDR),
skb->len, PCI_DMA_TODEVICE);
RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE,
("new ring->idx:%d, "
"free: skb_queue_len:%d, free: seq:%x\n",
ring->idx,
skb_queue_len(&ring->queue),
*(u16 *) (skb->data + 22)));
info = IEEE80211_SKB_CB(skb);
ieee80211_tx_info_clear_status(info);
info->flags |= IEEE80211_TX_STAT_ACK;
/*info->status.rates[0].count = 1; */
ieee80211_tx_status_irqsafe(hw, skb);
if ((ring->entries - skb_queue_len(&ring->queue))
== 2) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
("more desc left, wake"
"skb_queue@%d,ring->idx = %d,"
"skb_queue_len = 0x%d\n",
prio, ring->idx,
skb_queue_len(&ring->queue)));
ieee80211_wake_queue(hw,
skb_get_queue_mapping
(skb));
}
skb = NULL;
}
if (((rtlpriv->link_info.num_rx_inperiod +
rtlpriv->link_info.num_tx_inperiod) > 8) ||
(rtlpriv->link_info.num_rx_inperiod > 2)) {
rtl_lps_leave(hw);
}
}
static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u8 *rxdesc = skb->data;
struct ieee80211_hdr *hdr;
bool unicast = false;
__le16 fc;
struct ieee80211_rx_status rx_status = {0};
struct rtl_stats stats = {
.signal = 0,
.noise = -98,
.rate = 0,
};
skb_pull(skb, RTL_RX_DESC_SIZE);
rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
hdr = (struct ieee80211_hdr *)(skb->data);
fc = hdr->frame_control;
if (!stats.crc) {
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
if (is_broadcast_ether_addr(hdr->addr1)) {
/*TODO*/;
} else if (is_multicast_ether_addr(hdr->addr1)) {
/*TODO*/
} else {
unicast = true;
rtlpriv->stats.rxbytesunicast += skb->len;
}
rtl_is_special_data(hw, skb, false);
if (ieee80211_is_data(fc)) {
rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
}
}
static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
u8 *rxdesc = skb->data;
struct ieee80211_hdr *hdr;
bool unicast = false;
__le16 fc;
struct ieee80211_rx_status rx_status = {0};
struct rtl_stats stats = {
.signal = 0,
.noise = -98,
.rate = 0,
};
skb_pull(skb, RTL_RX_DESC_SIZE);
rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
hdr = (struct ieee80211_hdr *)(skb->data);
fc = hdr->frame_control;
if (!stats.crc) {
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
if (is_broadcast_ether_addr(hdr->addr1)) {
/*TODO*/;
} else if (is_multicast_ether_addr(hdr->addr1)) {
/*TODO*/
} else {
unicast = true;
rtlpriv->stats.rxbytesunicast += skb->len;
}
rtl_is_special_data(hw, skb, false);
if (ieee80211_is_data(fc)) {
rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
if (likely(rtl_action_proc(hw, skb, false))) {
struct sk_buff *uskb = NULL;
u8 *pdata;
uskb = dev_alloc_skb(skb->len + 128);
if (uskb) { /* drop packet on allocation failure */
memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status,
sizeof(rx_status));
pdata = (u8 *)skb_put(uskb, skb->len);
memcpy(pdata, skb->data, skb->len);
ieee80211_rx_irqsafe(hw, uskb);
}
dev_kfree_skb_any(skb);
} else {
dev_kfree_skb_any(skb);
}
}
}
static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct sk_buff *_skb;
struct sk_buff_head rx_queue;
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
skb_queue_head_init(&rx_queue);
if (rtlusb->usb_rx_segregate_hdl)
rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
WARN_ON(skb_queue_empty(&rx_queue));
while (!skb_queue_empty(&rx_queue)) {
_skb = skb_dequeue(&rx_queue);
_rtl_usb_rx_process_agg(hw, skb);
ieee80211_rx_irqsafe(hw, skb);
}
}
static void _rtl_rx_completed(struct urb *_urb)
{
struct sk_buff *skb = (struct sk_buff *)_urb->context;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
struct rtl_priv *rtlpriv = rtl_priv(hw);
int err = 0;
if (unlikely(IS_USB_STOP(rtlusb)))
goto free;
if (likely(0 == _urb->status)) {
/* If this code were moved to work queue, would CPU
* utilization be improved? NOTE: We shall allocate another skb
* and reuse the original one.
*/
skb_put(skb, _urb->actual_length);
if (likely(!rtlusb->usb_rx_segregate_hdl)) {
struct sk_buff *_skb;
_rtl_usb_rx_process_noagg(hw, skb);
_skb = _rtl_prep_rx_urb(hw, rtlusb, _urb, GFP_ATOMIC);
if (IS_ERR(_skb)) {
err = PTR_ERR(_skb);
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
"Can't allocate skb for bulk IN!\n");
return;
}
skb = _skb;
} else{
/* TO DO */
_rtl_rx_pre_process(hw, skb);
pr_err("rx agg not supported\n");
}
goto resubmit;
}
switch (_urb->status) {
/* disconnect */
case -ENOENT:
case -ECONNRESET:
case -ENODEV:
case -ESHUTDOWN:
goto free;
default:
break;
}
resubmit:
skb_reset_tail_pointer(skb);
skb_trim(skb, 0);
usb_anchor_urb(_urb, &rtlusb->rx_submitted);
err = usb_submit_urb(_urb, GFP_ATOMIC);
if (unlikely(err)) {
usb_unanchor_urb(_urb);
goto free;
}
return;
free:
dev_kfree_skb_irq(skb);
}
static int _rtl_usb_receive(struct ieee80211_hw *hw)
{
struct urb *urb;
struct sk_buff *skb;
int err;
int i;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
WARN_ON(0 == rtlusb->rx_urb_num);
/* 1600 == 1514 + max WLAN header + rtk info */
WARN_ON(rtlusb->rx_max_size < 1600);
for (i = 0; i < rtlusb->rx_urb_num; i++) {
err = -ENOMEM;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
"Failed to alloc URB!!\n");
goto err_out;
}
skb = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
if (IS_ERR(skb)) {
RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
"Failed to prep_rx_urb!!\n");
err = PTR_ERR(skb);
goto err_out;
}
usb_anchor_urb(urb, &rtlusb->rx_submitted);
err = usb_submit_urb(urb, GFP_KERNEL);
if (err)
goto err_out;
usb_free_urb(urb);
}
return 0;
err_out:
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
return err;
}
static int rtl_usb_start(struct ieee80211_hw *hw)
{
int err;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
err = rtlpriv->cfg->ops->hw_init(hw);
if (!err) {
rtl_init_rx_config(hw);
/* Enable software */
SET_USB_START(rtlusb);
/* should after adapter start and interrupt enable. */
set_hal_start(rtlhal);
/* Start bulk IN */
_rtl_usb_receive(hw);
}
return err;
}
/**
*
*
*/
/*======================= tx =========================================*/
static void rtl_usb_cleanup(struct ieee80211_hw *hw)
{
u32 i;
struct sk_buff *_skb;
struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
struct ieee80211_tx_info *txinfo;
SET_USB_STOP(rtlusb);
/* clean up rx stuff. */
usb_kill_anchored_urbs(&rtlusb->rx_submitted);
/* clean up tx stuff */
for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
rtlusb->usb_tx_cleanup(hw, _skb);
txinfo = IEEE80211_SKB_CB(_skb);
ieee80211_tx_info_clear_status(txinfo);
txinfo->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(hw, _skb);
}
usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
}
usb_kill_anchored_urbs(&rtlusb->tx_submitted);
}
/**
* il3945_hdl_tx - Handle Tx response
*/
static void
il3945_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
{
struct il_rx_pkt *pkt = rxb_addr(rxb);
u16 sequence = le16_to_cpu(pkt->hdr.sequence);
int txq_id = SEQ_TO_QUEUE(sequence);
int idx = SEQ_TO_IDX(sequence);
struct il_tx_queue *txq = &il->txq[txq_id];
struct ieee80211_tx_info *info;
struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
u32 status = le32_to_cpu(tx_resp->status);
int rate_idx;
int fail;
if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) {
IL_ERR("Read idx for DMA queue txq_id (%d) idx %d "
"is out of range [0-%d] %d %d\n", txq_id, idx,
txq->q.n_bd, txq->q.write_ptr, txq->q.read_ptr);
return;
}
/*
* Firmware will not transmit frame on passive channel, if it not yet
* received some valid frame on that channel. When this error happen
* we have to wait until firmware will unblock itself i.e. when we
* note received beacon or other frame. We unblock queues in
* il3945_pass_packet_to_mac80211 or in il_mac_bss_info_changed.
*/
if (unlikely((status & TX_STATUS_MSK) == TX_STATUS_FAIL_PASSIVE_NO_RX) &&
il->iw_mode == NL80211_IFTYPE_STATION) {
il_stop_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
D_INFO("Stopped queues - RX waiting on passive channel\n");
}
txq->time_stamp = jiffies;
info = IEEE80211_SKB_CB(txq->skbs[txq->q.read_ptr]);
ieee80211_tx_info_clear_status(info);
/* Fill the MRR chain with some info about on-chip retransmissions */
rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate);
if (info->band == IEEE80211_BAND_5GHZ)
rate_idx -= IL_FIRST_OFDM_RATE;
fail = tx_resp->failure_frame;
info->status.rates[0].idx = rate_idx;
info->status.rates[0].count = fail + 1; /* add final attempt */
/* tx_status->rts_retry_count = tx_resp->failure_rts; */
info->flags |=
((status & TX_STATUS_MSK) ==
TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0;
D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", txq_id,
il3945_get_tx_fail_reason(status), status, tx_resp->rate,
tx_resp->failure_frame);
D_TX_REPLY("Tx queue reclaim %d\n", idx);
il3945_tx_queue_reclaim(il, txq_id, idx);
if (status & TX_ABORT_REQUIRED_MSK)
IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n");
}
