diff options
Diffstat (limited to 'include/asm-arm/mach')
| -rw-r--r-- | include/asm-arm/mach/irq.h | 135 |
1 files changed, 33 insertions, 102 deletions
diff --git a/include/asm-arm/mach/irq.h b/include/asm-arm/mach/irq.h index d4d420ecf3a8..131f33733d25 100644 --- a/include/asm-arm/mach/irq.h +++ b/include/asm-arm/mach/irq.h @@ -10,95 +10,9 @@ #ifndef __ASM_ARM_MACH_IRQ_H #define __ASM_ARM_MACH_IRQ_H -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; -}; - -extern struct irqdesc irq_desc[]; +#include <linux/irq.h> -/* - * Helpful inline function for calling irq descriptor handlers. - */ -static inline void desc_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - desc->handle(irq, desc, regs); -} +struct seq_file; /* * This is internal. Do not use it. @@ -106,18 +20,22 @@ static inline void desc_handle_irq(unsigned int irq, struct irqdesc *desc, struc extern void (*init_arch_irq)(void); extern void init_FIQ(void); extern int show_fiq_list(struct seq_file *, void *); -void __set_irq_handler(unsigned int irq, irq_handler_t, int); /* - * External stuff. + * Function wrappers + */ +#define set_irq_chipdata(irq, d) set_irq_chip_data(irq, d) +#define get_irq_chipdata(irq) get_irq_chip_data(irq) + +/* + * Obsolete inline function for calling irq descriptor handlers. */ -#define set_irq_handler(irq,handler) __set_irq_handler(irq,handler,0) -#define set_irq_chained_handler(irq,handler) __set_irq_handler(irq,handler,1) -#define set_irq_data(irq,d) do { irq_desc[irq].data = d; } while (0) -#define set_irq_chipdata(irq,d) do { irq_desc[irq].base = d; } while (0) -#define get_irq_chipdata(irq) (irq_desc[irq].base) +static inline void desc_handle_irq(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) +{ + desc->handle_irq(irq, desc, regs); +} -void set_irq_chip(unsigned int irq, struct irqchip *); void set_irq_flags(unsigned int irq, unsigned int flags); #define IRQF_VALID (1 << 0) @@ -125,12 +43,25 @@ void set_irq_flags(unsigned int irq, unsigned int flags); #define IRQF_NOAUTOEN (1 << 2) /* - * Built-in IRQ handlers. + * This is for easy migration, but should be changed in the source */ -void do_level_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs); -void do_edge_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs); -void do_simple_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs); -void do_bad_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs); -void dummy_mask_unmask_irq(unsigned int irq); +#define do_level_IRQ handle_level_irq +#define do_edge_IRQ handle_edge_irq +#define do_simple_IRQ handle_simple_irq +#define irqdesc irq_desc +#define irqchip irq_chip + +#define do_bad_IRQ(irq,desc,regs) \ +do { \ + spin_lock(&desc->lock); \ + handle_bad_irq(irq, desc, regs); \ + spin_unlock(&desc->lock); \ +} while(0) + +extern unsigned long irq_err_count; +static inline void ack_bad_irq(int irq) +{ + irq_err_count++; +} #endif |