1 #ifndef __SH_INTC_H 2 #define __SH_INTC_H 3 4 #include <linux/ioport.h> 5 6 typedef unsigned char intc_enum; 7 8 struct intc_vect { 9 intc_enum enum_id; 10 unsigned short vect; 11 }; 12 13 #define INTC_VECT(enum_id, vect) { enum_id, vect } 14 #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq)) 15 16 struct intc_group { 17 intc_enum enum_id; 18 intc_enum enum_ids[32]; 19 }; 20 21 #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } } 22 23 struct intc_mask_reg { 24 unsigned long set_reg, clr_reg, reg_width; 25 intc_enum enum_ids[32]; 26 #ifdef CONFIG_INTC_BALANCING 27 unsigned long dist_reg; 28 #endif 29 #ifdef CONFIG_SMP 30 unsigned long smp; 31 #endif 32 }; 33 34 struct intc_prio_reg { 35 unsigned long set_reg, clr_reg, reg_width, field_width; 36 intc_enum enum_ids[16]; 37 #ifdef CONFIG_SMP 38 unsigned long smp; 39 #endif 40 }; 41 42 struct intc_sense_reg { 43 unsigned long reg, reg_width, field_width; 44 intc_enum enum_ids[16]; 45 }; 46 47 #ifdef CONFIG_INTC_BALANCING 48 #define INTC_SMP_BALANCING(reg) .dist_reg = (reg) 49 #else 50 #define INTC_SMP_BALANCING(reg) 51 #endif 52 53 #ifdef CONFIG_SMP 54 #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8) 55 #else 56 #define INTC_SMP(stride, nr) 57 #endif 58 59 struct intc_hw_desc { 60 struct intc_vect *vectors; 61 unsigned int nr_vectors; 62 struct intc_group *groups; 63 unsigned int nr_groups; 64 struct intc_mask_reg *mask_regs; 65 unsigned int nr_mask_regs; 66 struct intc_prio_reg *prio_regs; 67 unsigned int nr_prio_regs; 68 struct intc_sense_reg *sense_regs; 69 unsigned int nr_sense_regs; 70 struct intc_mask_reg *ack_regs; 71 unsigned int nr_ack_regs; 72 }; 73 74 #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a) 75 #define INTC_HW_DESC(vectors, groups, mask_regs, \ 76 prio_regs, sense_regs, ack_regs) \ 77 { \ 78 _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ 79 _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ 80 _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ 81 } 82 83 struct intc_desc { 84 char *name; 85 struct resource *resource; 86 unsigned int num_resources; 87 intc_enum force_enable; 88 intc_enum force_disable; 89 struct intc_hw_desc hw; 90 }; 91 92 #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \ 93 mask_regs, prio_regs, sense_regs) \ 94 struct intc_desc symbol __initdata = { \ 95 .name = chipname, \ 96 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ 97 prio_regs, sense_regs, NULL), \ 98 } 99 100 #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \ 101 mask_regs, prio_regs, sense_regs, ack_regs) \ 102 struct intc_desc symbol __initdata = { \ 103 .name = chipname, \ 104 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ 105 prio_regs, sense_regs, ack_regs), \ 106 } 107 108 int __init register_intc_controller(struct intc_desc *desc); 109 int intc_set_priority(unsigned int irq, unsigned int prio); 110 111 #ifdef CONFIG_INTC_USERIMASK 112 int register_intc_userimask(unsigned long addr); 113 #else 114 static inline int register_intc_userimask(unsigned long addr) 115 { 116 return 0; 117 } 118 #endif 119 120 int reserve_irq_vector(unsigned int irq); 121 void reserve_irq_legacy(void); 122 123 #endif /* __SH_INTC_H */ 124