Rev 1919 | Rev 1921 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1919 | Rev 1920 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Jakub Jermar |
2 | * Copyright (C) 2006 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup genericinterrupt |
29 | /** @addtogroup genericddi |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
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 | #include <arch/types.h> |
38 | #include <arch/types.h> |
39 | #include <adt/list.h> |
39 | #include <adt/list.h> |
40 | 40 | ||
41 | typedef int32_t inr_t; |
- | |
42 | typedef int32_t devno_t; |
- | |
43 | - | ||
44 | typedef enum { |
41 | typedef enum { |
45 | IRQ_DECLINE, /**< Decline to service. */ |
42 | IRQ_DECLINE, /**< Decline to service. */ |
46 | IRQ_ACCEPT /**< Accept to service. */ |
43 | IRQ_ACCEPT /**< Accept to service. */ |
47 | } irq_ownership_t; |
44 | } irq_ownership_t; |
48 | 45 | ||
49 | typedef enum { |
46 | typedef enum { |
50 | IRQ_TRIGGER_LEVEL = 1, |
47 | IRQ_TRIGGER_LEVEL = 1, |
51 | IRQ_TRIGGER_EDGE |
48 | IRQ_TRIGGER_EDGE |
52 | } irq_trigger_t; |
49 | } irq_trigger_t; |
53 | 50 | ||
54 | typedef struct irq irq_t; |
51 | typedef struct irq irq_t; |
55 | 52 | ||
56 | typedef void (* irq_handler_t)(irq_t *irq, void *arg, ...); |
53 | typedef void (* irq_handler_t)(irq_t *irq, void *arg, ...); |
57 | 54 | ||
58 | /** Structure representing one device IRQ. |
55 | /** Structure representing one device IRQ. |
59 | * |
56 | * |
60 | * If one device has multiple interrupts, there will |
57 | * If one device has multiple interrupts, there will |
61 | * be multiple irq_t instantions with the same |
58 | * be multiple irq_t instantions with the same |
62 | * devno. |
59 | * devno. |
63 | */ |
60 | */ |
64 | struct irq { |
61 | struct irq { |
65 | /** Hash table link. */ |
62 | /** Hash table link. */ |
66 | link_t link; |
63 | link_t link; |
67 | 64 | ||
68 | /** Unique device number. -1 if not yet assigned. */ |
65 | /** Unique device number. -1 if not yet assigned. */ |
69 | devno_t devno; |
66 | devno_t devno; |
70 | 67 | ||
71 | /** Actual IRQ number. -1 if not yet assigned. */ |
68 | /** Actual IRQ number. -1 if not yet assigned. */ |
72 | inr_t inr; |
69 | inr_t inr; |
73 | /** Task ID of the task to be notified about the IRQ or 0. */ |
70 | /** Task ID of the task to be notified about the IRQ or 0. */ |
74 | task_id_t notif; |
71 | task_id_t notif; |
75 | /** Trigger level of the IRQ.*/ |
72 | /** Trigger level of the IRQ.*/ |
76 | irq_trigger_t trigger; |
73 | irq_trigger_t trigger; |
77 | /** Claim ownership of the IRQ. */ |
74 | /** Claim ownership of the IRQ. */ |
78 | irq_ownership_t (* claim)(void); |
75 | irq_ownership_t (* claim)(void); |
79 | /** Handler for this IRQ and device. */ |
76 | /** Handler for this IRQ and device. */ |
80 | irq_handler_t handler; |
77 | irq_handler_t handler; |
81 | /** Argument for the handler. */ |
78 | /** Argument for the handler. */ |
82 | void *arg; |
79 | void *arg; |
83 | }; |
80 | }; |
84 | 81 | ||
85 | extern void irq_init(count_t inrs, count_t chains); |
82 | extern void irq_init(count_t inrs, count_t chains); |
86 | extern void irq_initialize(irq_t *irq); |
83 | extern void irq_initialize(irq_t *irq); |
87 | extern void irq_register(irq_t *irq); |
84 | extern void irq_register(irq_t *irq); |
88 | extern irq_t *irq_dispatch(inr_t inr); |
85 | extern irq_t *irq_dispatch(inr_t inr); |
89 | 86 | ||
90 | #endif |
87 | #endif |
91 | 88 | ||
92 | /** @} |
89 | /** @} |
93 | */ |
90 | */ |
94 | 91 |