arch/sh/include/asm/hw_irq.h

   1 #ifndef __ASM_SH_HW_IRQ_H
   2 #define __ASM_SH_HW_IRQ_H
   3
   4 #include <linux/init.h>
   5 #include <asm/atomic.h>
   6
   7 extern atomic_t irq_err_count;
   8
   9 struct ipr_data {
  10         unsigned char irq;
  11         unsigned char ipr_idx;          /* Index for the IPR registered */
  12         unsigned char shift;            /* Number of bits to shift the data */
  13         unsigned char priority;         /* The priority */
  14 };
  15
  16 struct ipr_desc {
  17         unsigned long *ipr_offsets;
  18         unsigned int nr_offsets;
  19         struct ipr_data *ipr_data;
  20         unsigned int nr_irqs;
  21         struct irq_chip chip;
  22 };
  23
  24 void register_ipr_controller(struct ipr_desc *);
  25
  26 typedef unsigned char intc_enum;
  27
  28 struct intc_vect {
  29         intc_enum enum_id;
  30         unsigned short vect;
  31 };
  32
  33 #define INTC_VECT(enum_id, vect) { enum_id, vect }
  34 #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
  35
  36 struct intc_group {
  37         intc_enum enum_id;
  38         intc_enum enum_ids[32];
  39 };
  40
  41 #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
  42
  43 struct intc_mask_reg {
  44         unsigned long set_reg, clr_reg, reg_width;
  45         intc_enum enum_ids[32];
  46 #ifdef CONFIG_SMP
  47         unsigned long smp;
  48 #endif
  49 };
  50
  51 struct intc_prio_reg {
  52         unsigned long set_reg, clr_reg, reg_width, field_width;
  53         intc_enum enum_ids[16];
  54 #ifdef CONFIG_SMP
  55         unsigned long smp;
  56 #endif
  57 };
  58
  59 struct intc_sense_reg {
  60         unsigned long reg, reg_width, field_width;
  61         intc_enum enum_ids[16];
  62 };
  63
  64 #ifdef CONFIG_SMP
  65 #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
  66 #else
  67 #define INTC_SMP(stride, nr)
  68 #endif
  69
  70 struct intc_desc {
  71         struct intc_vect *vectors;
  72         unsigned int nr_vectors;
  73         struct intc_group *groups;
  74         unsigned int nr_groups;
  75         struct intc_mask_reg *mask_regs;
  76         unsigned int nr_mask_regs;
  77         struct intc_prio_reg *prio_regs;
  78         unsigned int nr_prio_regs;
  79         struct intc_sense_reg *sense_regs;
  80         unsigned int nr_sense_regs;
  81         char *name;
  82 #if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
  83         struct intc_mask_reg *ack_regs;
  84         unsigned int nr_ack_regs;
  85 #endif
  86 };
  87
  88 #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
  89 #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,            \
  90         mask_regs, prio_regs, sense_regs)                               \
  91 struct intc_desc symbol __initdata = {                                  \
  92         _INTC_ARRAY(vectors), _INTC_ARRAY(groups),                      \
  93         _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),                 \
  94         _INTC_ARRAY(sense_regs),                                        \
  95         chipname,                                                       \
  96 }
  97
  98 #if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
  99 #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,        \
 100         mask_regs, prio_regs, sense_regs, ack_regs)                     \
 101 struct intc_desc symbol __initdata = {                                  \
 102         _INTC_ARRAY(vectors), _INTC_ARRAY(groups),                      \
 103         _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),                 \
 104         _INTC_ARRAY(sense_regs),                                        \
 105         chipname,                                                       \
 106         _INTC_ARRAY(ack_regs),                                          \
 107 }
 108 #endif
 109
 110 void __init register_intc_controller(struct intc_desc *desc);
 111 int intc_set_priority(unsigned int irq, unsigned int prio);
 112
 113 void __init plat_irq_setup(void);
 114 #ifdef CONFIG_CPU_SH3
 115 void __init plat_irq_setup_sh3(void);
 116 #endif
 117
 118 enum { IRQ_MODE_IRQ, IRQ_MODE_IRQ7654, IRQ_MODE_IRQ3210,
 119        IRQ_MODE_IRL7654_MASK, IRQ_MODE_IRL3210_MASK,
 120        IRQ_MODE_IRL7654, IRQ_MODE_IRL3210 };
 121 void __init plat_irq_setup_pins(int mode);
 122
 123 #endif /* __ASM_SH_HW_IRQ_H */