static int LOCOMX_send_packet(struct net_device *dev, struct sk_buff *skb)
{
struct comx_channel *ch = netdev_priv(dev);
struct locomx_data *hw = ch->HW_privdata;
if (ch->debug_flags & DEBUG_HW_TX) {
comx_debug_bytes(dev, skb->data, skb->len, "LOCOMX_send_packet");
}
if (!(ch->line_status & LINE_UP)) {
return FRAME_DROPPED;
}
if(z8530_queue_xmit(&hw->board.chanA,skb)) {
printk(KERN_WARNING "%s: FRAME_DROPPED\n",dev->name);
return FRAME_DROPPED;
}
if (ch->debug_flags & DEBUG_HW_TX) {
comx_debug(dev, "%s: LOCOMX_send_packet was successful\n\n", dev->name);
}
if(!hw->board.chanA.tx_next_skb) {
return FRAME_QUEUED;
} else {
return FRAME_ACCEPTED;
}
}
int comx_debug_skb(struct net_device *dev, struct sk_buff *skb, char *msg)
{
struct comx_channel *ch = dev->priv;
if (!ch->debug_area) return 0;
if (!skb) comx_debug(dev, "%s: %s NULL skb\n\n", dev->name, msg);
if (!skb->len) comx_debug(dev, "%s: %s empty skb\n\n", dev->name, msg);
return comx_debug_bytes(dev, skb->data, skb->len, msg);
}
static int MIXCOM_send_packet(struct net_device *dev, struct sk_buff *skb)
{
struct comx_channel *ch = dev->priv;
struct mixcom_privdata *hw = ch->HW_privdata;
unsigned long flags;
if (ch->debug_flags & DEBUG_HW_TX) {
comx_debug_bytes(dev, skb->data, skb->len, "MIXCOM_send_packet");
}
if (!(ch->line_status & LINE_UP)) {
return FRAME_DROPPED;
}
if (skb->len > HSCX_MTU) {
ch->stats.tx_errors++;
return FRAME_ERROR;
}
save_flags(flags); cli();
if (test_and_set_bit(0, &hw->txbusy)) {
printk(KERN_ERR "%s: transmitter called while busy... dropping frame (length %d)\n", dev->name, skb->len);
restore_flags(flags);
return FRAME_DROPPED;
}
hw->sending = skb;
hw->tx_ptr = 0;
hw->txbusy = 1;
// atomic_inc(&skb->users); // save it
hscx_fill_fifo(dev);
restore_flags(flags);
ch->stats.tx_packets++;
ch->stats.tx_bytes += skb->len;
if (ch->debug_flags & DEBUG_HW_TX) {
comx_debug(dev, "MIXCOM_send_packet was successful\n\n");
}
return FRAME_ACCEPTED;
}