cleans up PIC

kernel/arch/pic/pic.c

@@ -5,6 +5,33 @@
 #include <kernel/x86/io.h>
 #include <kernel/x86/pic.h>
 
+/** PIC I/O ports **/
+#define PIC1	0x20 /** Master PIC **/
+#define PIC2	0xA0 /** Slave PIC **/
+
+/** PIC helper defines **/
+#define PIC1_COMMAND	(PIC1)
+#define PIC1_DATA	(PIC1 + 1)
+#define PIC2_COMMAND	(PIC2)
+#define PIC2_DATA	(PIC2 + 1)
+
+/** PIC Commands **/
+#define ICW1_ICW4	0x01 	/** Indicates ICW4 will be present **/
+#define ICW1_SINGLE	0x02 	/** Single (cascade mode) **/
+#define ICW1_INTERVAL4	0x04 	/** Call address interval 4 (8) **/
+#define ICW1_LEVEL	0x08 	/** Level triggered (edge) mode **/
+#define ICW1_INIT	0x10 	/** Initialization **/
+
+#define ICW4_8086	0x01	/** 8086/88 (MCS-80/85) mode **/
+#define ICW4_AUTO	0x02	/** Auto (normal) EOI **/
+#define ICW4_BUF_SLAVE	0x08	/** Buffered mode/slave **/
+#define ICW4_BUF_MASTER	0x0C	/** Buffered mode/master **/
+#define ICW4_SFNM	0x10	/** Special fully nested (not) **/
+
+#define PIC_EOI		0x20 	/** End-of-interrupt command code **/
+#define PIC_READ_IRR	0x0a	/** OCW3 irq ready next CMD read **/
+#define PIC_READ_ISR	0x0b	/** OCW3 irq service next CMD read **/
+
 void PIC_sendEOI(uint8_t irq)
 {
 	if (irq >= 8) // if we're over the PIC1 limit
@@ -123,3 +150,22 @@ uint16_t pic_get_isr(void)
 	return __pic_get_irq_reg(PIC_READ_ISR);
 }
 
+#undef PIC1	
+#undef PIC2	
+#undef PIC1_COMMAND	
+#undef PIC1_DATA	
+#undef PIC2_COMMAND	
+#undef PIC2_DATA	
+#undef ICW1_ICW4	
+#undef ICW1_SINGLE	
+#undef ICW1_INTERVAL4	
+#undef ICW1_LEVEL	
+#undef ICW1_INIT	
+#undef ICW4_8086	
+#undef ICW4_AUTO	
+#undef ICW4_BUF_SLAVE	
+#undef ICW4_BUF_MASTER	
+#undef ICW4_SFNM	
+#undef PIC_EOI		
+#undef PIC_READ_IRR	
+#undef PIC_READ_ISR