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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ****************************************************************************
     11  ****************************************************************************/
     12 #ifndef _LINUX_IRQ_H
     13 #define _LINUX_IRQ_H
     14 
     15 #include <linux/smp.h>
     16 
     17 #include <linux/linkage.h>
     18 #include <linux/cache.h>
     19 #include <linux/spinlock.h>
     20 #include <linux/cpumask.h>
     21 #include <linux/irqreturn.h>
     22 
     23 #include <asm/irq.h>
     24 #include <asm/ptrace.h>
     25 
     26 #define IRQ_TYPE_NONE 0x00000000
     27 #define IRQ_TYPE_EDGE_RISING 0x00000001
     28 #define IRQ_TYPE_EDGE_FALLING 0x00000002
     29 #define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)
     30 #define IRQ_TYPE_LEVEL_HIGH 0x00000004
     31 #define IRQ_TYPE_LEVEL_LOW 0x00000008
     32 #define IRQ_TYPE_SENSE_MASK 0x0000000f
     33 #define IRQ_TYPE_PROBE 0x00000010
     34 
     35 #define IRQ_INPROGRESS 0x00010000
     36 #define IRQ_DISABLED 0x00020000
     37 #define IRQ_PENDING 0x00040000
     38 #define IRQ_REPLAY 0x00080000
     39 #define IRQ_AUTODETECT 0x00100000
     40 #define IRQ_WAITING 0x00200000
     41 #define IRQ_LEVEL 0x00400000
     42 #define IRQ_MASKED 0x00800000
     43 #define IRQ_PER_CPU 0x01000000
     44 #define CHECK_IRQ_PER_CPU(var) 0
     45 
     46 #define IRQ_NOPROBE 0x02000000
     47 #define IRQ_NOREQUEST 0x04000000
     48 #define IRQ_NOAUTOEN 0x08000000
     49 #define IRQ_DELAYED_DISABLE 0x10000000
     50 #define IRQ_WAKEUP 0x20000000
     51 
     52 struct proc_dir_entry;
     53 
     54 struct irq_chip {
     55  const char *name;
     56  unsigned int (*startup)(unsigned int irq);
     57  void (*shutdown)(unsigned int irq);
     58  void (*enable)(unsigned int irq);
     59  void (*disable)(unsigned int irq);
     60 
     61  void (*ack)(unsigned int irq);
     62  void (*mask)(unsigned int irq);
     63  void (*mask_ack)(unsigned int irq);
     64  void (*unmask)(unsigned int irq);
     65  void (*eoi)(unsigned int irq);
     66 
     67  void (*end)(unsigned int irq);
     68  void (*set_affinity)(unsigned int irq, cpumask_t dest);
     69  int (*retrigger)(unsigned int irq);
     70  int (*set_type)(unsigned int irq, unsigned int flow_type);
     71  int (*set_wake)(unsigned int irq, unsigned int on);
     72 
     73  const char *typename;
     74 };
     75 
     76 struct irq_desc {
     77  void fastcall (*handle_irq)(unsigned int irq,
     78  struct irq_desc *desc,
     79  struct pt_regs *regs);
     80  struct irq_chip *chip;
     81  void *handler_data;
     82  void *chip_data;
     83  struct irqaction *action;
     84  unsigned int status;
     85 
     86  unsigned int depth;
     87  unsigned int wake_depth;
     88  unsigned int irq_count;
     89  unsigned int irqs_unhandled;
     90  spinlock_t lock;
     91 } ____cacheline_aligned;
     92 
     93 #define hw_interrupt_type irq_chip
     94 typedef struct irq_chip hw_irq_controller;
     95 #define no_irq_type no_irq_chip
     96 typedef struct irq_desc irq_desc_t;
     97 
     98 #include <asm/hw_irq.h>
     99 
    100 #endif
    101