Subversion Repositories HelenOS

Rev

Rev 2071 | Rev 2106 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2071 Rev 2089
Line 33... Line 33...
33 
 */
 33 
 */
34 
 
 34 
 
35 
#ifndef KERN_IRQ_H_
 35 
#ifndef KERN_IRQ_H_
36 
#define KERN_IRQ_H_
 36 
#define KERN_IRQ_H_
37 
 
 37 
 
- 
 
 38 
typedef enum {
- 
 
 39 
    CMD_MEM_READ_1 = 0,
- 
 
 40 
    CMD_MEM_READ_2,
- 
 
 41 
    CMD_MEM_READ_4,
- 
 
 42 
    CMD_MEM_READ_8,
- 
 
 43 
    CMD_MEM_WRITE_1,
- 
 
 44 
    CMD_MEM_WRITE_2,
- 
 
 45 
    CMD_MEM_WRITE_4,
- 
 
 46 
    CMD_MEM_WRITE_8,
- 
 
 47 
    CMD_PORT_READ_1,
- 
 
 48 
    CMD_PORT_WRITE_1,
- 
 
 49 
    CMD_IA64_GETCHAR,
- 
 
 50 
    CMD_PPC32_GETCHAR,
- 
 
 51 
    CMD_LAST
- 
 
 52 
} irq_cmd_type;
- 
 
 53 
 
- 
 
 54 
typedef struct {
- 
 
 55 
    irq_cmd_type cmd;
- 
 
 56 
    void *addr;
- 
 
 57 
    unsigned long long value;
- 
 
 58 
    int dstarg;
- 
 
 59 
} irq_cmd_t;
- 
 
 60 
 
- 
 
 61 
typedef struct {
- 
 
 62 
    unsigned int cmdcount;
- 
 
 63 
    irq_cmd_t *cmds;
- 
 
 64 
} irq_code_t;
- 
 
 65 
 
- 
 
 66 
#ifdef KERNEL
- 
 
 67 
 
38 
#include <arch/types.h>
 68 
#include <arch/types.h>
39 
#include <typedefs.h>
 - 
 
40 
#include <adt/list.h>
 69 
#include <adt/list.h>
41 
#include <ipc/irq.h>
 - 
 
42 
#include <synch/spinlock.h>
 70 
#include <synch/spinlock.h>
- 
 
 71 
#include <proc/task.h>
43 
 
 72 
 
44 
typedef enum {
 73 
typedef enum {
45 
    IRQ_DECLINE,        /**< Decline to service. */
 74 
    IRQ_DECLINE,        /**< Decline to service. */
46 
    IRQ_ACCEPT      /**< Accept to service. */
 75 
    IRQ_ACCEPT      /**< Accept to service. */
47 
} irq_ownership_t;
 76 
} irq_ownership_t;
Line 49... Line 78...
49 
typedef enum {
 78 
typedef enum {
50 
    IRQ_TRIGGER_LEVEL = 1,
 79 
    IRQ_TRIGGER_LEVEL = 1,
51 
    IRQ_TRIGGER_EDGE
 80 
    IRQ_TRIGGER_EDGE
52 
} irq_trigger_t;
 81 
} irq_trigger_t;
53 
 
 82 
 
- 
 
 83 
struct irq;
54 
typedef void (* irq_handler_t)(irq_t *irq, void *arg, ...);
 84 
typedef void (* irq_handler_t)(struct irq *irq, void *arg, ...);
- 
 
 85 
 
- 
 
 86 
 
- 
 
 87 
 
- 
 
 88 
/** IPC notification config structure.
- 
 
 89 
 *
- 
 
 90 
 * Primarily, this structure is encapsulated in the irq_t structure.
- 
 
 91 
 * It is protected by irq_t::lock.
- 
 
 92 
 */
- 
 
 93 
typedef struct {
- 
 
 94 
    bool notify;            /**< When false, notifications are not sent. */
- 
 
 95 
    answerbox_t *answerbox;     /**< Answerbox for notifications. */
- 
 
 96 
    unative_t method;       /**< Method to be used for the notification. */
- 
 
 97 
    irq_code_t *code;       /**< Top-half pseudocode. */
- 
 
 98 
    count_t counter;        /**< Counter. */
- 
 
 99 
    link_t link;            /**< Link between IRQs that are notifying the
- 
 
 100 
                         same answerbox. The list is protected by
- 
 
 101 
                         the answerbox irq_lock. */
- 
 
 102 
} ipc_notif_cfg_t;
55 
 
 103 
 
56 
/** Structure representing one device IRQ.
 104 
/** Structure representing one device IRQ.
57 
 *
 105 
 *
58 
 * If one device has multiple interrupts, there will
 106 
 * If one device has multiple interrupts, there will
59 
 * be multiple irq_t instantions with the same
 107 
 * be multiple irq_t instantions with the same
60 
 * devno.
 108 
 * devno.
61 
 */
 109 
 */
62 
struct irq {
 110 
typedef struct irq {
63 
    /** Hash table link. */
 111 
    /** Hash table link. */
64 
    link_t link;
 112 
    link_t link;
65 
 
 113 
 
66 
    /** Lock protecting everything in this structure
 114 
    /** Lock protecting everything in this structure
67 
     *  except the link member. When both the IRQ
 115 
     *  except the link member. When both the IRQ
Line 84... Line 132...
84 
    /** Argument for the handler. */
 132 
    /** Argument for the handler. */
85 
    void *arg;
 133 
    void *arg;
86 
 
 134 
 
87 
    /** Notification configuration structure. */
 135 
    /** Notification configuration structure. */
88 
    ipc_notif_cfg_t notif_cfg;
 136 
    ipc_notif_cfg_t notif_cfg;
89 
};
 137 
} irq_t;
90 
 
 138 
 
91 
extern void irq_init(count_t inrs, count_t chains);
 139 
extern void irq_init(count_t inrs, count_t chains);
92 
extern void irq_initialize(irq_t *irq);
 140 
extern void irq_initialize(irq_t *irq);
93 
extern void irq_register(irq_t *irq);
 141 
extern void irq_register(irq_t *irq);
94 
extern irq_t *irq_dispatch_and_lock(inr_t inr);
 142 
extern irq_t *irq_dispatch_and_lock(inr_t inr);
95 
extern irq_t *irq_find_and_lock(inr_t inr, devno_t devno);
 143 
extern irq_t *irq_find_and_lock(inr_t inr, devno_t devno);
96 
 
 144 
 
97 
#endif
 145 
#endif
98 
 
 146 
 
- 
 
 147 
#endif
- 
 
 148 
 
99 
/** @}
 149 
/** @}
100 
 */
 150 
 */