/arch/m68k/apollo/dn_ints.c
https://bitbucket.org/thekraven/iscream_thunderc-2.6.35 · C · 44 lines · 36 code · 8 blank · 0 comment · 2 complexity · a653e659045e4190b1afb3879755ca62 MD5 · raw file
- #include <linux/interrupt.h>
- #include <asm/irq.h>
- #include <asm/traps.h>
- #include <asm/apollohw.h>
- void dn_process_int(unsigned int irq, struct pt_regs *fp)
- {
- __m68k_handle_int(irq, fp);
- *(volatile unsigned char *)(pica)=0x20;
- *(volatile unsigned char *)(picb)=0x20;
- }
- int apollo_irq_startup(unsigned int irq)
- {
- if (irq < 8)
- *(volatile unsigned char *)(pica+1) &= ~(1 << irq);
- else
- *(volatile unsigned char *)(picb+1) &= ~(1 << (irq - 8));
- return 0;
- }
- void apollo_irq_shutdown(unsigned int irq)
- {
- if (irq < 8)
- *(volatile unsigned char *)(pica+1) |= (1 << irq);
- else
- *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
- }
- static struct irq_controller apollo_irq_controller = {
- .name = "apollo",
- .lock = __SPIN_LOCK_UNLOCKED(apollo_irq_controller.lock),
- .startup = apollo_irq_startup,
- .shutdown = apollo_irq_shutdown,
- };
- void __init dn_init_IRQ(void)
- {
- m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int);
- m68k_setup_irq_controller(&apollo_irq_controller, IRQ_APOLLO, 16);
- }