tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __SH_INTC_H
2#define __SH_INTC_H
3
4typedef unsigned char intc_enum;
5
6struct intc_vect {
7 intc_enum enum_id;
8 unsigned short vect;
9};
10
11#define INTC_VECT(enum_id, vect) { enum_id, vect }
12#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
13
14struct intc_group {
15 intc_enum enum_id;
16 intc_enum enum_ids[32];
17};
18
19#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
20
21struct intc_mask_reg {
22 unsigned long set_reg, clr_reg, reg_width;
23 intc_enum enum_ids[32];
24#ifdef CONFIG_SMP
25 unsigned long smp;
26#endif
27};
28
29struct intc_prio_reg {
30 unsigned long set_reg, clr_reg, reg_width, field_width;
31 intc_enum enum_ids[16];
32#ifdef CONFIG_SMP
33 unsigned long smp;
34#endif
35};
36
37struct intc_sense_reg {
38 unsigned long reg, reg_width, field_width;
39 intc_enum enum_ids[16];
40};
41
42#ifdef CONFIG_SMP
43#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
44#else
45#define INTC_SMP(stride, nr)
46#endif
47
48struct intc_hw_desc {
49 struct intc_vect *vectors;
50 unsigned int nr_vectors;
51 struct intc_group *groups;
52 unsigned int nr_groups;
53 struct intc_mask_reg *mask_regs;
54 unsigned int nr_mask_regs;
55 struct intc_prio_reg *prio_regs;
56 unsigned int nr_prio_regs;
57 struct intc_sense_reg *sense_regs;
58 unsigned int nr_sense_regs;
59 struct intc_mask_reg *ack_regs;
60 unsigned int nr_ack_regs;
61};
62
63#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
64#define INTC_HW_DESC(vectors, groups, mask_regs, \
65 prio_regs, sense_regs, ack_regs) \
66{ \
67 _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
68 _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
69 _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
70}
71
72struct intc_desc {
73 char *name;
74 intc_enum force_enable;
75 intc_enum force_disable;
76 struct intc_hw_desc hw;
77};
78
79#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
80 mask_regs, prio_regs, sense_regs) \
81struct intc_desc symbol __initdata = { \
82 .name = chipname, \
83 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
84 prio_regs, sense_regs, NULL), \
85}
86
87#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
88 mask_regs, prio_regs, sense_regs, ack_regs) \
89struct intc_desc symbol __initdata = { \
90 .name = chipname, \
91 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
92 prio_regs, sense_regs, ack_regs), \
93}
94
95void __init register_intc_controller(struct intc_desc *desc);
96int intc_set_priority(unsigned int irq, unsigned int prio);
97
98int reserve_irq_vector(unsigned int irq);
99void reserve_irq_legacy(void);
100
101#endif /* __SH_INTC_H */