From 542c728681926555ae93d6df8c06b52487fa87f4 Mon Sep 17 00:00:00 2001
From: aaron <aaron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
Date: Thu, 26 Oct 2017 00:21:56 +0000
Subject: [PATCH] git-svn-id: https://spexeah.com:8443/svn/Asuro@257
6dbc8c32-bb84-406f-8558-d1cf31a0ab0c
---
src/driver/ATA.pas | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/src/driver/ATA.pas b/src/driver/ATA.pas
index 4c2e2a8a..d43aa10a 100644
--- a/src/driver/ATA.pas
+++ b/src/driver/ATA.pas
@@ -2,6 +2,7 @@
* Asuro
* Unit: Drivers/ATA
* Description: ATA DMA Driver
+ * currently a hack needs to be re-written if works
************************************************
* Author: Aaron Hance
* Contributors:
@@ -161,7 +162,7 @@ procedure callback(data : void); //need r/w, is last
var
cb : ATA_Command_Buffer;
ptr : intptr;
- tmp : uint32;
+ tmp : uint16;
begin
if(PRD_Table[devices[0].currentIndex - 1].EOT = 1) then begin
//other stuff
@@ -169,19 +170,19 @@ begin
end;
if(devices[0].reading = true) then begin
- if(PRD_Table[devices[0].currentIndex].EOT = 0) then begin
+ if(PRD_Table[devices[0].currentIndex].EOT = 0) then begin
outb(ports.sector_count, 125);
- outb(ports.lba_low, ((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $000000FF);
+ outb(ports.lba_low, (devices[0].device_lba + (64000 * devices[0].currentIndex)) and $000000FF);
+ outb(ports.lba_mid, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 8);
+ outb(ports.lba_hi, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 16);
+ outb(ports.command, $C8);
+ end else begin
+ tmp := uint16((PRD_Table[devices[0].currentIndex].Byte_Count and $FFFF) DIV 512);
+ outb(ports.sector_count, uint16(tmp)); // wont work if 64k
+ outb(ports.lba_low, (devices[0].device_lba + (64000 * devices[0].currentIndex)) and $000000FF);
outb(ports.lba_mid, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 8);
outb(ports.lba_hi, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 16);
outb(ports.command, $C8);
- // end else begin
- // tmp := uint8(PRD_Table[devices[0].currentIndex].Byte_Count and $FF) / 512;
- // outb(ports.sector_count, uint8(tmp); // wont work if 64k
- // outb(ports.lba_low, ((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $000000FF);
- // outb(ports.lba_mid, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 8);
- // outb(ports.lba_hi, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 16);
- // outb(ports.command, $C8);
end;
cb.start_stop_bit := 1;