static void tsi108_pic_end_irq(unsigned int irq_nr)
{
#ifdef __SLOW_VERSION__
if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
&& irq_desc[irq_nr].action)
tsi108_pic_enable_irq(irq_nr);
#else
if ((irq_desc[irq_nr].status & IRQ_LEVEL) != 0)
tsi108_pic_eoi();
#endif
}
void __init tsi108_pic_init(u_char *board_init_senses)
{
u_int i;
u32 sense;
if (!tsi108_csr_base) {
printk("No tsi108 PIC found !\n");
return;
}
tsi108_pic_reset();
if (ppc_md.progress) ppc_md.progress("tsi108_pic_init: enter", 0x122);
/* Initialize timer interrupts */
for (i = 0; i < TSI108PIC_NUM_TIMERS; i++) {
/* Disabled, Priority 0 */
tsi108_pic_inittimer(i, 0, IRQ_TSI108_TIMER0 + i);
/* No processor */
tsi108_pic_maptimer(i, 0);
}
/* Init board-specific external sources */
for (i = 0; i < 4; i++) {
sense = board_init_senses[i];
if (sense & IRQ_SENSE_MASK)
irq_desc[TSI108_IRQ(i)].status |= IRQ_LEVEL;
/* Enabled, Priority 8 */
tsi108_pic_initirq(i, 8, TSI108_IRQ(i),
(sense & IRQ_POLARITY_MASK), (sense & IRQ_SENSE_MASK));
/* Map to CPU #0 */
tsi108_pic_mapirq(TSI108_IRQ(i), 1<<0, 0);
}
/* Init remaining internal sources. */
for (; i < TSI108PIC_MAX_SOURCES; i++) {
/* Disabled, Priority 8, by default - Positive Edge */
tsi108_pic_initirq(i, 8, TSI108_IRQ(i),
IRQ_POLARITY_POSITIVE, IRQ_SENSE_EDGE);
/* Map to CPU #0 */
tsi108_pic_mapirq(TSI108_IRQ(i), (1 << 0), 0);
}
/*
* Change sensitivity to level for sources that require it.
* (NOTE: Actual HW switching will be berformed in the corresponding
* enable/disable routines)
*/
irq_desc[IRQ_TSI108_GIGE0].status |= IRQ_LEVEL;
irq_desc[IRQ_TSI108_GIGE1].status |= IRQ_LEVEL;
irq_desc[IRQ_TSI108_PCI].status |= IRQ_LEVEL;
/* Init descriptors */
for (i = 0; i < TSI108PIC_MAX_SOURCES; i++)
irq_desc[i + TSI108_IRQ_BASE].handler = &tsi108_pic_irq;
for (i = 0; i < NUM_PCI_IRQS; i++) {
irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq;
irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
}
/* Initialize the spurious interrupt */
tsi108_pic_set_spurious(TSI108_IRQ_SPURIOUS);
tsi108_pic_set_task_priority(0);
init_pci_source();
tsi108_pic_enable_irq(IRQ_TSI108_PCI);
i = tsi108_pic_read_reg(TSI108_INT_VECTOR(0));
tsi108_pic_write_reg(TSI108_INT_EOI(0), 0);
if (ppc_md.progress) ppc_md.progress("tsi108_pic_init: exit",0x222);
}
static void tsi108_pic_end_irq(unsigned int irq_nr)
{
if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
&& irq_desc[irq_nr].action)
tsi108_pic_enable_irq(irq_nr);
}