/**
* @brief call back function to handle the status of the URB
* @param urb pointer to urb structure
* @return N/A
*/
static void if_usb_write_bulk_callback(struct urb *urb)
{
struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
/* handle the transmission complete validations */
if (urb->status == 0) {
struct lbs_private *priv = cardp->priv;
lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
urb->actual_length);
/* Used for both firmware TX and regular TX. priv isn't
* valid at firmware load time.
*/
if (priv)
lbs_host_to_card_done(priv);
} else {
/* print the failure status number for debug */
lbs_pr_info("URB in failure status: %d\n", urb->status);
}
return;
}
static irqreturn_t if_cs_interrupt(int irq, void *data)
{
struct if_cs_card *card = data;
struct lbs_private *priv = card->priv;
u16 cause;
lbs_deb_enter(LBS_DEB_CS);
/* Ask card interrupt cause register if there is something for us */
cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE);
lbs_deb_cs("cause 0x%04x\n", cause);
if (cause == 0) {
/* Not for us */
return IRQ_NONE;
}
if (cause == 0xffff) {
/* Read in junk, the card has probably been removed */
card->priv->surpriseremoved = 1;
return IRQ_HANDLED;
}
if (cause & IF_CS_BIT_RX) {
struct sk_buff *skb;
lbs_deb_cs("rx packet\n");
skb = if_cs_receive_data(priv);
if (skb)
lbs_process_rxed_packet(priv, skb);
}
if (cause & IF_CS_BIT_TX) {
lbs_deb_cs("tx done\n");
lbs_host_to_card_done(priv);
}
if (cause & IF_CS_BIT_RESP) {
unsigned long flags;
u8 i;
lbs_deb_cs("cmd resp\n");
spin_lock_irqsave(&priv->driver_lock, flags);
i = (priv->resp_idx == 0) ? 1 : 0;
spin_unlock_irqrestore(&priv->driver_lock, flags);
BUG_ON(priv->resp_len[i]);
if_cs_receive_cmdres(priv, priv->resp_buf[i],
&priv->resp_len[i]);
spin_lock_irqsave(&priv->driver_lock, flags);
lbs_notify_command_response(priv, i);
spin_unlock_irqrestore(&priv->driver_lock, flags);
}
if (cause & IF_CS_BIT_EVENT) {
u16 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE,
IF_CS_BIT_EVENT);
lbs_queue_event(priv, (status & IF_CS_CARD_STATUS_MASK) >> 8);
}
/**
* @brief call back function to handle the status of the URB
* @param urb pointer to urb structure
* @return N/A
*/
static void if_usb_write_bulk_callback(struct urb *urb)
{
struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
/* handle the transmission complete validations */
if (urb->status == 0) {
struct lbs_private *priv = cardp->priv;
lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
urb->actual_length);
/* Boot commands such as UPDATE_FW and UPDATE_BOOT2 are not
* passed up to the lbs level.
*/
if (priv && priv->dnld_sent != DNLD_BOOTCMD_SENT)
lbs_host_to_card_done(priv);
} else {
/* print the failure status number for debug */
lbs_pr_info("URB in failure status: %d\n", urb->status);
}
return;
}