/***********************************************************************
** acxpci_l_tx_data
**
** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
** Can be called from acx_i_start_xmit (data frames from net core).
**
** FIXME: in case of fragments, should loop over the number of
** pre-allocated tx descrs, properly setting up transfer data and
** CTL_xxx flags according to fragment number.
*/
void
acxpci_l_tx_data(acx_device_t * adev, tx_t * tx_opaque, int len,
		 struct ieee80211_tx_control *ieeectl,struct sk_buff* skb)
{
	txdesc_t *txdesc = (txdesc_t *) tx_opaque;
	struct ieee80211_hdr *wireless_header;
	txhostdesc_t *hostdesc1, *hostdesc2;
	int rate_cur;
	u8 Ctl_8;
	u8 Ctl2_8;
	int wlhdr_len;
	unsigned long flags;

	FN_ENTER;

	acx_lock(adev, flags);

	/* fw doesn't tx such packets anyhow */
/*	if (unlikely(len < WLAN_HDR_A3_LEN))
		goto end;
*/
//	printk("1\n");
	hostdesc1 = get_txhostdesc(adev, txdesc);
	wireless_header = (struct ieee80211_hdr *)hostdesc1->data;
	/* modify flag status in separate variable to be able to write it back
	 * in one big swoop later (also in order to have less device memory
	 * accesses) */
	Ctl_8 = txdesc->Ctl_8;
	Ctl2_8 = 0;		/* really need to init it to 0, not txdesc->Ctl2_8, it seems */
//	printk("2\n");
	hostdesc2 = hostdesc1 + 1;

	/* DON'T simply set Ctl field to 0 here globally,
	 * it needs to maintain a consistent flag status (those are state flags!!),
	 * otherwise it may lead to severe disruption. Only set or reset particular
	 * flags at the exact moment this is needed... */

	/* let chip do RTS/CTS handshaking before sending
	 * in case packet size exceeds threshold */
	if (ieeectl->flags & IEEE80211_TXCTL_USE_RTS_CTS)
		SET_BIT(Ctl2_8, DESC_CTL2_RTS);
	else
		CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
//	printk("3\n");
	rate_cur = ieeectl->tx_rate;
	if (unlikely(!rate_cur)) {
//		printk("acx: driver bug! bad ratemask\n");
		acx_unlock(adev, flags);
		goto end;
	}
	printk("4\n");
	/* used in tx cleanup routine for auto rate and accounting: */
/*	put_txcr(adev, txdesc, clt, rate_cur);  deprecated by mac80211 */

	txdesc->total_length = cpu_to_le16(len);
	printk("f.1\n");
	wlhdr_len = ieee80211_get_hdrlen(le16_to_cpu(wireless_header->frame_control));
	printk("f.2\n");
	hostdesc2->length = cpu_to_le16(len - wlhdr_len);
	printk("5\n");
/*
	if (!ieeectl->do_not_encrypt && ieeectl->key_idx>= 0)
	{
		u16 key_idx = (u16)(ieeectl->key_idx);
		struct acx_key* key = &(adev->key[key_idx]);
		int wlhdr_len;
		if (key->enabled)
		{
			memcpy(ieeehdr->wep_iv, ((u8*)wireless_header) + wlhdr_len, 4);
		}
	}
*/
	acx_unlock(adev, flags);

	printk("unlocking failed, just as bush did!\n");
_CODE_WILL_CONTINUE_HERE_