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fix IRQ lock problem on shared IRQ

This commit is contained in:
Karsten Keil 2001-11-16 01:49:21 +00:00
parent 845651c9ec
commit 2a9617b14f
1 changed files with 10 additions and 6 deletions
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16
drivers/isdn/hardware/mISDN/hfc_pci.c
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@ -228,7 +228,8 @@ release_io_hfcpci(hfc_pci_t *hc)
static void
reset_hfcpci(hfc_pci_t *hc)
{
long flags;
long flags;
u_char val;
save_flags(flags);
cli();
@ -308,10 +309,7 @@ reset_hfcpci(hfc_pci_t *hc)
Write_hfc(hc, HFCPCI_B1_RSL, 0x80); /* B1-Slot 0 STIO2 in enabled */
Write_hfc(hc, HFCPCI_B2_RSL, 0x81); /* B2-Slot 1 STIO2 in enabled */
/* Finally enable IRQ output */
hc->hw.int_m2 = HFCPCI_IRQ_ENABLE;
Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
if (Read_hfc(hc, HFCPCI_INT_S2));
val = Read_hfc(hc, HFCPCI_INT_S2);
restore_flags(flags);
}
@ -2040,6 +2038,12 @@ static int init_card(hfc_pci_t *hc)
while (cnt) {
inithfcpci(hc);
unlock_dev(hc);
/* Finally enable IRQ output
* this is only allowed, if an IRQ routine is allready
* established for this HFC, so don't do that earlier
*/
hc->hw.int_m2 = HFCPCI_IRQ_ENABLE;
Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
/* Timeout 80ms */
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout((80*HZ)/1000);
@ -2209,9 +2213,9 @@ setup_hfcpci(hfc_pci_t *hc)
hc->irq, HZ);
pcibios_write_config_word(hc->hw.pci_bus, hc->hw.pci_device_fn, PCI_COMMAND, PCI_ENA_MEMIO); /* enable memory mapped ports, disable busmaster */
hc->hw.int_m2 = 0; /* disable alle interrupts */
Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
hc->hw.int_m1 = 0;
Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
/* At this point the needed PCI config is done */
/* fifos are still not enabled */
hc->hw.timer.function = (void *) hfcpci_Timer;