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1 | #ifndef __SH_INTC_H |
2 | #define __SH_INTC_H |
3 | |
4 | #include <linux/ioport.h> |
5 | |
6 | #ifdef CONFIG_SUPERH |
7 | #define INTC_NR_IRQS 512 |
8 | #else |
9 | #define INTC_NR_IRQS 1024 |
10 | #endif |
11 | |
12 | /* |
13 | * Convert back and forth between INTEVT and IRQ values. |
14 | */ |
15 | #ifdef CONFIG_CPU_HAS_INTEVT |
16 | #define evt2irq(evt) (((evt) >> 5) - 16) |
17 | #define irq2evt(irq) (((irq) + 16) << 5) |
18 | #else |
19 | #define evt2irq(evt) (evt) |
20 | #define irq2evt(irq) (irq) |
21 | #endif |
22 | |
23 | typedef unsigned char intc_enum; |
24 | |
25 | struct intc_vect { |
26 | intc_enum enum_id; |
27 | unsigned short vect; |
28 | }; |
29 | |
30 | #define INTC_VECT(enum_id, vect) { enum_id, vect } |
31 | #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq)) |
32 | |
33 | struct intc_group { |
34 | intc_enum enum_id; |
35 | intc_enum enum_ids[32]; |
36 | }; |
37 | |
38 | #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } } |
39 | |
40 | struct intc_subgroup { |
41 | unsigned long reg, reg_width; |
42 | intc_enum parent_id; |
43 | intc_enum enum_ids[32]; |
44 | }; |
45 | |
46 | struct intc_mask_reg { |
47 | unsigned long set_reg, clr_reg, reg_width; |
48 | intc_enum enum_ids[32]; |
49 | #ifdef CONFIG_INTC_BALANCING |
50 | unsigned long dist_reg; |
51 | #endif |
52 | #ifdef CONFIG_SMP |
53 | unsigned long smp; |
54 | #endif |
55 | }; |
56 | |
57 | struct intc_prio_reg { |
58 | unsigned long set_reg, clr_reg, reg_width, field_width; |
59 | intc_enum enum_ids[16]; |
60 | #ifdef CONFIG_SMP |
61 | unsigned long smp; |
62 | #endif |
63 | }; |
64 | |
65 | struct intc_sense_reg { |
66 | unsigned long reg, reg_width, field_width; |
67 | intc_enum enum_ids[16]; |
68 | }; |
69 | |
70 | #ifdef CONFIG_INTC_BALANCING |
71 | #define INTC_SMP_BALANCING(reg) .dist_reg = (reg) |
72 | #else |
73 | #define INTC_SMP_BALANCING(reg) |
74 | #endif |
75 | |
76 | #ifdef CONFIG_SMP |
77 | #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8) |
78 | #else |
79 | #define INTC_SMP(stride, nr) |
80 | #endif |
81 | |
82 | struct intc_hw_desc { |
83 | struct intc_vect *vectors; |
84 | unsigned int nr_vectors; |
85 | struct intc_group *groups; |
86 | unsigned int nr_groups; |
87 | struct intc_mask_reg *mask_regs; |
88 | unsigned int nr_mask_regs; |
89 | struct intc_prio_reg *prio_regs; |
90 | unsigned int nr_prio_regs; |
91 | struct intc_sense_reg *sense_regs; |
92 | unsigned int nr_sense_regs; |
93 | struct intc_mask_reg *ack_regs; |
94 | unsigned int nr_ack_regs; |
95 | struct intc_subgroup *subgroups; |
96 | unsigned int nr_subgroups; |
97 | }; |
98 | |
99 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) |
100 | |
101 | #define INTC_HW_DESC(vectors, groups, mask_regs, \ |
102 | prio_regs, sense_regs, ack_regs) \ |
103 | { \ |
104 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ |
105 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ |
106 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ |
107 | } |
108 | |
109 | struct intc_desc { |
110 | char *name; |
111 | struct resource *resource; |
112 | unsigned int num_resources; |
113 | intc_enum force_enable; |
114 | intc_enum force_disable; |
115 | bool skip_syscore_suspend; |
116 | struct intc_hw_desc hw; |
117 | }; |
118 | |
119 | #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \ |
120 | mask_regs, prio_regs, sense_regs) \ |
121 | struct intc_desc symbol __initdata = { \ |
122 | .name = chipname, \ |
123 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ |
124 | prio_regs, sense_regs, NULL), \ |
125 | } |
126 | |
127 | #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \ |
128 | mask_regs, prio_regs, sense_regs, ack_regs) \ |
129 | struct intc_desc symbol __initdata = { \ |
130 | .name = chipname, \ |
131 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ |
132 | prio_regs, sense_regs, ack_regs), \ |
133 | } |
134 | |
135 | int register_intc_controller(struct intc_desc *desc); |
136 | int intc_set_priority(unsigned int irq, unsigned int prio); |
137 | int intc_irq_lookup(const char *chipname, intc_enum enum_id); |
138 | void intc_finalize(void); |
139 | |
140 | #ifdef CONFIG_INTC_USERIMASK |
141 | int register_intc_userimask(unsigned long addr); |
142 | #else |
143 | static inline int register_intc_userimask(unsigned long addr) |
144 | { |
145 | return 0; |
146 | } |
147 | #endif |
148 | |
149 | #endif /* __SH_INTC_H */ |
150 |
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