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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-m68knommu/] [irq.h] - Blame information for rev 1782

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#ifndef _M68K_IRQ_H_
#define _M68K_IRQ_H_
 
extern void disable_irq(unsigned int);
extern void enable_irq(unsigned int);
 
#include <linux/config.h>
 
#ifdef CONFIG_COLDFIRE
/*
 *      On the ColdFire we keep track of all vectors. That way drivers
 *      can register whatever vector number they wish, and we can deal
 *      with it.
 */
#define SYS_IRQS        256
#define NR_IRQS         SYS_IRQS
 
#else
 
/*
 * # of m68k interrupts
 */
 
#define SYS_IRQS 8
 
/*
 * This should be the same as the max(NUM_X_SOURCES) for all the
 * different m68k hosts compiled into the kernel.
 * Currently the Atari has 72 and the Amiga 24, but if both are
 * supported in the kernel it is better to make room for 72.
 */
#if defined(CONFIG_ATARI)
#define NR_IRQS (72+SYS_IRQS)
#else
#define NR_IRQS (24+SYS_IRQS)
#endif
#endif /* CONFIG_COLDFIRE */
 
 
/*
 * Interrupt source definitions
 * General interrupt sources are the level 1-7.
 * Adding an interrupt service routine for one of these sources
 * results in the addition of that routine to a chain of routines.
 * Each one is called in succession.  Each individual interrupt
 * service routine should determine if the device associated with
 * that routine requires service.
 */
 
#define IRQ1            (1)     /* level 1 interrupt */
#define IRQ2            (2)     /* level 2 interrupt */
#define IRQ3            (3)     /* level 3 interrupt */
#define IRQ4            (4)     /* level 4 interrupt */
#define IRQ5            (5)     /* level 5 interrupt */
#define IRQ6            (6)     /* level 6 interrupt */
#define IRQ7            (7)     /* level 7 interrupt (non-maskable) */
 
/*
 * "Generic" interrupt sources
 */
 
#define IRQ_SCHED_TIMER (8)    /* interrupt source for scheduling timer */
 
/*
 * Machine specific interrupt sources.
 *
 * Adding an interrupt service routine for a source with this bit
 * set indicates a special machine specific interrupt source.
 * The machine specific files define these sources.
 */
 
#define IRQ_MACHSPEC    (0x10000000L)
#define IRQ_IDX(irq)    ((irq) & ~IRQ_MACHSPEC)
 
/*
 * various flags for request_irq()
 */
#define IRQ_FLG_LOCK    (0x0001)        /* handler is not replaceable   */
#define IRQ_FLG_REPLACE (0x0002)        /* replace existing handler     */
#define IRQ_FLG_FAST    (0x0004)
#define IRQ_FLG_SLOW    (0x0008)
#define IRQ_FLG_STD     (0x8000)        /* internally used              */
 
#ifndef CONFIG_COLDFIRE
 
/*
 * This structure is used to chain together the ISRs for a particular
 * interrupt source (if it supports chaining).
 */
typedef struct irq_node {
        void            (*handler)(int, void *, struct pt_regs *);
        unsigned long   flags;
        void            *dev_id;
        const char      *devname;
        struct irq_node *next;
} irq_node_t;
 
/*
 * This function returns a new irq_node_t
 */
extern irq_node_t *new_irq_node(void);
 
#endif
 
/*
 * This structure has only 4 elements for speed reasons
 */
typedef struct irq_handler {
        void            (*handler)(int, void *, struct pt_regs *);
        unsigned long   flags;
        void            *dev_id;
        const char      *devname;
} irq_handler_t;
 
/* count of spurious interrupts */
extern volatile unsigned int num_spurious;
 
#endif /* _M68K_IRQ_H_ */

Line No.	Rev	Author	Line
1	1633	jcastillo	`#ifndef _M68K_IRQ_H_`
2			`#define _M68K_IRQ_H_`
3
4			`extern void disable_irq(unsigned int);`
5			`extern void enable_irq(unsigned int);`
6
7			`#include <linux/config.h>`
8
9			`#ifdef CONFIG_COLDFIRE`
10			`/*`
11			`* On the ColdFire we keep track of all vectors. That way drivers`
12			`* can register whatever vector number they wish, and we can deal`
13			`* with it.`
14			`*/`
15			`#define SYS_IRQS 256`
16			`#define NR_IRQS SYS_IRQS`
17
18			`#else`
19
20			`/*`
21			`* # of m68k interrupts`
22			`*/`
23
24			`#define SYS_IRQS 8`
25
26			`/*`
27			`* This should be the same as the max(NUM_X_SOURCES) for all the`
28			`* different m68k hosts compiled into the kernel.`
29			`* Currently the Atari has 72 and the Amiga 24, but if both are`
30			`* supported in the kernel it is better to make room for 72.`
31			`*/`
32			`#if defined(CONFIG_ATARI)`
33			`#define NR_IRQS (72+SYS_IRQS)`
34			`#else`
35			`#define NR_IRQS (24+SYS_IRQS)`
36			`#endif`
37			`#endif /* CONFIG_COLDFIRE */`
38
39
40			`/*`
41			`* Interrupt source definitions`
42			`* General interrupt sources are the level 1-7.`
43			`* Adding an interrupt service routine for one of these sources`
44			`* results in the addition of that routine to a chain of routines.`
45			`* Each one is called in succession. Each individual interrupt`
46			`* service routine should determine if the device associated with`
47			`* that routine requires service.`
48			`*/`
49
50			`#define IRQ1 (1) /* level 1 interrupt */`
51			`#define IRQ2 (2) /* level 2 interrupt */`
52			`#define IRQ3 (3) /* level 3 interrupt */`
53			`#define IRQ4 (4) /* level 4 interrupt */`
54			`#define IRQ5 (5) /* level 5 interrupt */`
55			`#define IRQ6 (6) /* level 6 interrupt */`
56			`#define IRQ7 (7) /* level 7 interrupt (non-maskable) */`
57
58			`/*`
59			`* "Generic" interrupt sources`
60			`*/`
61
62			`#define IRQ_SCHED_TIMER (8) /* interrupt source for scheduling timer */`
63
64			`/*`
65			`* Machine specific interrupt sources.`
66			`*`
67			`* Adding an interrupt service routine for a source with this bit`
68			`* set indicates a special machine specific interrupt source.`
69			`* The machine specific files define these sources.`
70			`*/`
71
72			`#define IRQ_MACHSPEC (0x10000000L)`
73			`#define IRQ_IDX(irq) ((irq) & ~IRQ_MACHSPEC)`
74
75			`/*`
76			`* various flags for request_irq()`
77			`*/`
78			`#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */`
79			`#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */`
80			`#define IRQ_FLG_FAST (0x0004)`
81			`#define IRQ_FLG_SLOW (0x0008)`
82			`#define IRQ_FLG_STD (0x8000) /* internally used */`
83
84			`#ifndef CONFIG_COLDFIRE`
85
86			`/*`
87			`* This structure is used to chain together the ISRs for a particular`
88			`* interrupt source (if it supports chaining).`
89			`*/`
90			`typedef struct irq_node {`
91			`void (handler)(int, void , struct pt_regs *);`
92			`unsigned long flags;`
93			`void *dev_id;`
94			`const char *devname;`
95			`struct irq_node *next;`
96			`} irq_node_t;`
97
98			`/*`
99			`* This function returns a new irq_node_t`
100			`*/`
101			`extern irq_node_t *new_irq_node(void);`
102
103			`#endif`
104
105			`/*`
106			`* This structure has only 4 elements for speed reasons`
107			`*/`
108			`typedef struct irq_handler {`
109			`void (handler)(int, void , struct pt_regs *);`
110			`unsigned long flags;`
111			`void *dev_id;`
112			`const char *devname;`
113			`} irq_handler_t;`
114
115			`/* count of spurious interrupts */`
116			`extern volatile unsigned int num_spurious;`
117
118			`#endif /* _M68K_IRQ_H_ */`

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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-m68knommu/] [irq.h] - Blame information for rev 1782