-struct irqdesc;
-struct pt_regs;
-struct seq_file;
-
-typedef void (*irq_handler_t)(unsigned int, struct irqdesc *, struct pt_regs *);
-typedef void (*irq_control_t)(unsigned int);
-
-struct irqchip {
- /*
- * Acknowledge the IRQ.
- * If this is a level-based IRQ, then it is expected to mask the IRQ
- * as well.
- */
- void (*ack)(unsigned int);
- /*
- * Mask the IRQ in hardware.
- */
- void (*mask)(unsigned int);
- /*
- * Unmask the IRQ in hardware.
- */
- void (*unmask)(unsigned int);
- /*
- * Ask the hardware to re-trigger the IRQ.
- * Note: This method _must_ _not_ call the interrupt handler.
- * If you are unable to retrigger the interrupt, do not
- * provide a function, or if you do, return non-zero.
- */
- int (*retrigger)(unsigned int);
- /*
- * Set the type of the IRQ.
- */
- int (*set_type)(unsigned int, unsigned int);
- /*
- * Set wakeup-enable on the selected IRQ
- */
- int (*set_wake)(unsigned int, unsigned int);
-
-#ifdef CONFIG_SMP
- /*
- * Route an interrupt to a CPU
- */
- void (*set_cpu)(struct irqdesc *desc, unsigned int irq, unsigned int cpu);
-#endif
-};
-
-struct irqdesc {
- irq_handler_t handle;
- struct irqchip *chip;
- struct irqaction *action;
- struct list_head pend;
- void __iomem *base;
- void *data;
- unsigned int disable_depth;
-
- unsigned int triggered: 1; /* IRQ has occurred */
- unsigned int running : 1; /* IRQ is running */
- unsigned int pending : 1; /* IRQ is pending */
- unsigned int probing : 1; /* IRQ in use for a probe */
- unsigned int probe_ok : 1; /* IRQ can be used for probe */
- unsigned int valid : 1; /* IRQ claimable */
- unsigned int noautoenable : 1; /* don't automatically enable IRQ */
- unsigned int unused :25;
-
- unsigned int irqs_unhandled;
- struct proc_dir_entry *procdir;
-
-#ifdef CONFIG_SMP
- cpumask_t affinity;
- unsigned int cpu;
-#endif
-
- /*
- * IRQ lock detection
- */
- unsigned int lck_cnt;
- unsigned int lck_pc;
- unsigned int lck_jif;
-};