int ath6kl_hif_setup(struct ath6kl_device *dev)
{
int status = 0;
spin_lock_init(&dev->lock);
/*
* NOTE: we actually get the block size of a mailbox other than 0,
* for SDIO the block size on mailbox 0 is artificially set to 1.
* So we use the block size that is set for the other 3 mailboxes.
*/
dev->htc_cnxt->block_sz = dev->ar->mbox_info.block_size;
/* must be a power of 2 */
if ((dev->htc_cnxt->block_sz & (dev->htc_cnxt->block_sz - 1)) != 0) {
WARN_ON(1);
status = -EINVAL;
goto fail_setup;
}
/* assemble mask, used for padding to a block */
dev->htc_cnxt->block_mask = dev->htc_cnxt->block_sz - 1;
ath6kl_dbg(ATH6KL_DBG_HIF, "hif block size %d mbox addr 0x%x\n",
dev->htc_cnxt->block_sz, dev->ar->mbox_info.htc_addr);
status = ath6kl_hif_disable_intrs(dev);
fail_setup:
return status;
}
int ath6kl_hif_setup(struct ath6kl_device *dev)
{
int status = 0;
spin_lock_init(&dev->lock);
dev->htc_cnxt->block_sz = dev->ar->mbox_info.block_size;
if ((dev->htc_cnxt->block_sz & (dev->htc_cnxt->block_sz - 1)) != 0) {
WARN_ON(1);
status = -EINVAL;
goto fail_setup;
}
dev->htc_cnxt->block_mask = dev->htc_cnxt->block_sz - 1;
ath6kl_dbg(ATH6KL_DBG_HIF, "hif block size %d mbox addr 0x%x\n",
dev->htc_cnxt->block_sz, dev->ar->mbox_info.htc_addr);
if (dev->ar->hif_type == ATH6KL_HIF_TYPE_USB)
return 0;
status = ath6kl_hif_disable_intrs(dev);
fail_setup:
return status;
}
int ath6kl_hif_mask_intrs(struct ath6kl_device *dev)
{
ath6kl_hif_irq_disable(dev->ar);
return ath6kl_hif_disable_intrs(dev);
}
/* disable all device interrupts */
int ath6kl_hif_mask_intrs(struct ath6kl_device *dev)
{
/*
* Mask the interrupt at the HIF layer to avoid any stray interrupt
* taken while we zero out our shadow registers in
* ath6kl_hif_disable_intrs().
*/
ath6kl_hif_irq_disable(dev->ar);
return ath6kl_hif_disable_intrs(dev);
}
int ath6kl_hif_unmask_intrs(struct ath6kl_device *dev)
{
int status = 0;
ath6kl_hif_disable_intrs(dev);
ath6kl_hif_irq_enable(dev->ar);
status = ath6kl_hif_enable_intrs(dev);
return status;
}
/* enable device interrupts */
int ath6kl_hif_unmask_intrs(struct ath6kl_device *dev)
{
int status = 0;
/*
* Make sure interrupt are disabled before unmasking at the HIF
* layer. The rationale here is that between device insertion
* (where we clear the interrupts the first time) and when HTC
* is finally ready to handle interrupts, other software can perform
* target "soft" resets. The ATH6KL interrupt enables reset back to an
* "enabled" state when this happens.
*/
ath6kl_hif_disable_intrs(dev);
/* unmask the host controller interrupts */
ath6kl_hif_irq_enable(dev->ar);
status = ath6kl_hif_enable_intrs(dev);
return status;
}
