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i8259: move init code into driver

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The initialization code and macros are the same. So extracts it
and puts it into the driver. This is another step to follow
the driver model.

Change-Id: I1af8b2888779b2b58367feaff9ee1a6d97b4873c
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2015-12-08 11:17:56 -08:00 • committed by Anas Nashif
commit 8778152298
6 changed files with 15 additions and 87 deletions
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16
drivers/interrupt_controller/i8259.c
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@ -28,10 +28,20 @@
#include <toolchain.h>
#include <sections.h>
#include <device.h>
#include <init.h>
#include <drivers/pic.h>
#include <board.h>
/* programmable interrupt controller info (pair of cascaded 8259A devices) */
#define PIC_MASTER_BASE_ADRS 0x20
#define PIC_SLAVE_BASE_ADRS 0xa0
#define PIC_REG_ADDR_INTERVAL 1
/* register definitions */
#define PIC_ADRS(baseAdrs, reg) (baseAdrs + (reg * PIC_REG_ADDR_INTERVAL))
#define PIC_PORT2(base) PIC_ADRS(base, 0x01) /* port 2 */
#define PIC_DISABLE 0xff /* Disable PIC command */
/**
@ -51,3 +61,7 @@ int _i8259_init(struct device *unused)
sys_out8(PIC_DISABLE, PIC_PORT2(PIC_MASTER_BASE_ADRS));
return 0;
}
DECLARE_DEVICE_INIT_CONFIG(pic_0, "", _i8259_init, NULL);
SYS_DEFINE_DEVICE(pic_0, NULL, PRIMARY,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);