diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2008-01-30 13:30:29 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:29 +0100 |
| commit | f20ebee41882d28c965166e56c1331fbd28778bb (patch) | |
| tree | 8f9675a4e10da77b6a1a080142e7aa1551fd0c3c /include/asm-x86/i8259.h | |
| parent | f0cd0af1b004f601f3cf96d9e001ffad9207f642 (diff) | |
| download | linux-f20ebee41882d28c965166e56c1331fbd28778bb.tar.bz2 | |
x86: move 8259 defines to i8259.h
Move the i8259 defines and remove the now io_ports.h
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/i8259.h')
| -rw-r--r-- | include/asm-x86/i8259.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/asm-x86/i8259.h b/include/asm-x86/i8259.h index 29d8f9a6b3fc..cabcc6cf3923 100644 --- a/include/asm-x86/i8259.h +++ b/include/asm-x86/i8259.h @@ -3,10 +3,25 @@ extern unsigned int cached_irq_mask; -#define __byte(x,y) (((unsigned char *) &(y))[x]) +#define __byte(x,y) (((unsigned char *) &(y))[x]) #define cached_master_mask (__byte(0, cached_irq_mask)) #define cached_slave_mask (__byte(1, cached_irq_mask)) +/* i8259A PIC registers */ +#define PIC_MASTER_CMD 0x20 +#define PIC_MASTER_IMR 0x21 +#define PIC_MASTER_ISR PIC_MASTER_CMD +#define PIC_MASTER_POLL PIC_MASTER_ISR +#define PIC_MASTER_OCW3 PIC_MASTER_ISR +#define PIC_SLAVE_CMD 0xa0 +#define PIC_SLAVE_IMR 0xa1 + +/* i8259A PIC related value */ +#define PIC_CASCADE_IR 2 +#define MASTER_ICW4_DEFAULT 0x01 +#define SLAVE_ICW4_DEFAULT 0x01 +#define PIC_ICW4_AEOI 2 + extern spinlock_t i8259A_lock; extern void init_8259A(int auto_eoi); |