diff options
Diffstat (limited to 'include/asm-sh/irq.h')
| -rw-r--r-- | include/asm-sh/irq.h | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index f10cfc1..fd57608 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -93,6 +93,12 @@ #define NR_IRQS (ONCHIP_NR_IRQS + PINT_NR_IRQS + OFFCHIP_NR_IRQS) /* + * Convert back and forth between INTEVT and IRQ values. + */ +#define evt2irq(evt) (((evt) >> 5) - 16) +#define irq2evt(irq) (((irq) + 16) << 5) + +/* * Simple Mask Register Support */ extern void make_maskreg_irq(unsigned int irq); @@ -103,18 +109,36 @@ extern unsigned short *irq_mask_register; */ void init_IRQ_pint(void); +/* + * The shift value is now the number of bits to shift, not the number of + * bits/4. This is to make it easier to read the value directly from the + * datasheets. The IPR address, addr, will be set from ipr_idx via the + * map_ipridx_to_addr function. + */ struct ipr_data { unsigned int irq; - unsigned int addr; /* Address of Interrupt Priority Register */ - int shift; /* Shifts of the 16-bit data */ + int ipr_idx; /* Index for the IPR registered */ + int shift; /* Number of bits to shift the data */ int priority; /* The priority */ + unsigned int addr; /* Address of Interrupt Priority Register */ }; /* + * Given an IPR IDX, map the value to an IPR register address. + */ +unsigned int map_ipridx_to_addr(int idx); + +/* + * Enable individual interrupt mode for external IPR IRQs. + */ +void ipr_irq_enable_irlm(void); + +/* * Function for "on chip support modules". */ -extern void make_ipr_irq(struct ipr_data *table, unsigned int nr_irqs); -extern void make_imask_irq(unsigned int irq); +void make_ipr_irq(struct ipr_data *table, unsigned int nr_irqs); +void make_imask_irq(unsigned int irq); +void init_IRQ_ipr(void); struct intc2_data { unsigned short irq; |