From 96d467b3a9027412eed8bf5ec3c4521db44469ef Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Wed, 6 Sep 2006 17:54:29 +0000
Subject: [PATCH] more named constants
---
ide.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/ide.c b/ide.c
index 7795f1b..f0fd0f9 100644
--- a/ide.c
+++ b/ide.c
@@ -9,10 +9,13 @@
#include "traps.h"
#include "spinlock.h"
-#define IDE_BSY 0x80
-#define IDE_DRDY 0x40
-#define IDE_DF 0x20
-#define IDE_ERR 0x01
+#define IDE_BSY 0x80
+#define IDE_DRDY 0x40
+#define IDE_DF 0x20
+#define IDE_ERR 0x01
+
+#define IDE_CMD_READ 0x20
+#define IDE_CMD_WRITE 0x30
struct ide_request {
int diskno;
@@ -95,9 +98,10 @@ ide_start_request (void)
outb(0x1F4, (r->secno >> 8) & 0xFF);
outb(0x1F5, (r->secno >> 16) & 0xFF);
outb(0x1F6, 0xE0 | ((r->diskno&1)<<4) | ((r->secno>>24)&0x0F));
- if(r->read) outb(0x1F7, 0x20); // read
+ if(r->read)
+ outb(0x1F7, IDE_CMD_READ);
else {
- outb(0x1F7, 0x30); // write
+ outb(0x1F7, IDE_CMD_WRITE);
outsl(0x1F0, r->addr, 512/4);
}
}
--
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