void gelic_card_up(struct gelic_card *card)
{
pr_debug("%s: called\n", __func__);
mutex_lock(&card->updown_lock);
if (atomic_inc_return(&card->users) == 1) {
pr_debug("%s: real do\n", __func__);
/* enable irq */
gelic_card_set_irq_mask(card, card->irq_mask);
/* start rx */
gelic_card_enable_rxdmac(card);
napi_enable(&card->napi);
}
mutex_unlock(&card->updown_lock);
pr_debug("%s: done\n", __func__);
}
/**
* gelic_card_interrupt - event handler for gelic_net
*/
static irqreturn_t gelic_card_interrupt(int irq, void *ptr)
{
unsigned long flags;
struct gelic_card *card = ptr;
u64 status;
status = card->irq_status;
if (!status)
return IRQ_NONE;
status &= card->irq_mask;
if (card->rx_dma_restart_required) {
card->rx_dma_restart_required = 0;
gelic_card_enable_rxdmac(card);
}
if (status & GELIC_CARD_RXINT) {
gelic_card_rx_irq_off(card);
napi_schedule(&card->napi);
}
if (status & GELIC_CARD_TXINT) {
spin_lock_irqsave(&card->tx_lock, flags);
card->tx_dma_progress = 0;
gelic_card_release_tx_chain(card, 0);
/* kick outstanding tx descriptor if any */
gelic_card_kick_txdma(card, card->tx_chain.tail);
spin_unlock_irqrestore(&card->tx_lock, flags);
}
/* ether port status changed */
if (status & GELIC_CARD_PORT_STATUS_CHANGED)
gelic_card_get_ether_port_status(card, 1);
#ifdef CONFIG_GELIC_WIRELESS
if (status & (GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED))
gelic_wl_interrupt(card->netdev[GELIC_PORT_WIRELESS], status);
#endif
return IRQ_HANDLED;
}
