/*
* Interrupt routines.
* rt2x00_interrupt_txdone processes all transmitted packetss results.
* rt2x00_interrupt_rxdone processes all received rx packets.
*/
static void rt2x00_interrupt_txdone(struct _data_ring * ring) {
struct rtwlan_device * rtwlan = rtnetdev_priv(ring->device->rtnet_dev);
struct _txd *txd = NULL;
u8 tx_result = 0x00;
/* u8 retry_count = 0x00; */
do{
txd = DESC_ADDR_DONE(ring);
if(rt2x00_get_field32(txd->word0, TXD_W0_OWNER_NIC)
|| !rt2x00_get_field32(txd->word0, TXD_W0_VALID))
break;
if(ring->ring_type == RING_TX){
tx_result = rt2x00_get_field32(txd->word0, TXD_W0_RESULT);
/* retry_count = rt2x00_get_field32(txd->word0, TXD_W0_RETRY_COUNT); */
switch(tx_result) {
case TX_SUCCESS:
rtwlan->stats.tx_packets++;
break;
case TX_SUCCESS_RETRY:
rtwlan->stats.tx_retry++;
break;
case TX_FAIL_RETRY:
DEBUG("TX_FAIL_RETRY.\n");
break;
case TX_FAIL_INVALID:
DEBUG("TX_FAIL_INVALID.\n");
break;
case TX_FAIL_OTHER:
DEBUG("TX_FAIL_OTHER.\n");
break;
default:
DEBUG("Unknown tx result.\n");
}
}
rt2x00_set_field32(&txd->word0, TXD_W0_VALID, 0);
rt2x00_ring_index_done_inc(ring);
}while(!rt2x00_ring_empty(ring));
}
/*
* Interrupt functions.
*/
static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue)
{
struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue);
struct data_entry *entry;
struct data_desc *txd;
u32 word;
int tx_status;
int retry;
while (!rt2x00_ring_empty(ring)) {
entry = rt2x00_get_data_entry_done(ring);
txd = entry->priv;
rt2x00_desc_read(txd, 0, &word);
if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
!rt2x00_get_field32(word, TXD_W0_VALID))
break;
/*
* Obtain the status about this packet.
*/
tx_status = rt2x00_get_field32(word, TXD_W0_RESULT);
retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
rt2x00lib_txdone(entry, tx_status, retry);
/*
* Make this entry available for reuse.
*/
entry->flags = 0;
rt2x00_set_field32(&word, TXD_W0_VALID, 0);
rt2x00_desc_write(txd, 0, word);
rt2x00_ring_index_done_inc(ring);
}
/*
* If the data ring was full before the txdone handler
* we must make sure the packet queue in the mac80211 stack
* is reenabled when the txdone handler has finished.
*/
entry = ring->entry;
if (!rt2x00_ring_full(ring))
ieee80211_wake_queue(rt2x00dev->hw,
entry->tx_status.control.queue);
}