Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 325230
b: refs/heads/master
c: af2140c
h: refs/heads/master
v: v3
  • Loading branch information
Jens Taprogge authored and Greg Kroah-Hartman committed Sep 12, 2012
1 parent 43992ce commit 6613097
Show file tree
Hide file tree
Showing 2 changed files with 18 additions and 26 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9b27adbced2455bfd7e5d1b76a7f151de3d25dec
refs/heads/master: af2140ce288fcb12a3c30a69b6ba93fd64d0a861
42 changes: 17 additions & 25 deletions trunk/drivers/staging/ipack/bridges/tpci200.c
Original file line number Diff line number Diff line change
Expand Up @@ -108,46 +108,38 @@ static void tpci200_unregister(struct tpci200_board *tpci200)
}
}

static irqreturn_t tpci200_slot_irq(struct slot_irq *slot_irq)
{
irqreturn_t ret = slot_irq->handler(slot_irq->arg);

/* Dummy reads */
readw(slot_irq->holder->io_space.address + 0xC0);
readw(slot_irq->holder->io_space.address + 0xC2);

return ret;
}

static irqreturn_t tpci200_interrupt(int irq, void *dev_id)
{
struct tpci200_board *tpci200 = (struct tpci200_board *) dev_id;
int i;
unsigned short status_reg;
unsigned short unhandled_ints = 0;
irqreturn_t ret = IRQ_NONE;
struct slot_irq *slot_irq;

/* Read status register */
status_reg = readw(&tpci200->info->interface_regs->status);

if (status_reg & TPCI200_SLOT_INT_MASK) {
unhandled_ints = status_reg & TPCI200_SLOT_INT_MASK;
/* callback to the IRQ handler for the corresponding slot */
for (i = 0; i < TPCI200_NB_SLOT; i++) {
if (!(status_reg & ((TPCI200_A_INT0 | TPCI200_A_INT1) << (2*i))))
continue;
slot_irq = tpci200->slots[i].irq;

if ((slot_irq != NULL) &&
(status_reg & ((TPCI200_A_INT0 | TPCI200_A_INT1) << (2*i)))) {

ret = slot_irq->handler(slot_irq->arg);

/* Dummy reads */
readw(slot_irq->holder->io_space.address +
0xC0);
readw(slot_irq->holder->io_space.address +
0xC2);

unhandled_ints &= ~(((TPCI200_A_INT0 | TPCI200_A_INT1) << (2*i)));
}
}
}
/* Interrupts not handled are disabled */
if (unhandled_ints) {
for (i = 0; i < TPCI200_NB_SLOT; i++) {
slot_irq = tpci200->slots[i].irq;

if (unhandled_ints & ((TPCI200_INT0_EN | TPCI200_INT1_EN) << (2*i))) {
dev_info(&slot_irq->holder->dev,
if (slot_irq) {
ret = tpci200_slot_irq(slot_irq);
} else {
dev_info(&tpci200->info->pdev->dev,
"No registered ISR for slot [%d:%d]!. IRQ will be disabled.\n",
tpci200->number, i);
__tpci200_clear_mask(
Expand Down

0 comments on commit 6613097

Please sign in to comment.