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git-svn-id: https://spexeah.com:8443/svn/Asuro@257 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c

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This commit is contained in:
aaron 2017-10-26 00:21:56 +00:00
parent 09c03be521
commit 542c728681
1 changed files with 11 additions and 10 deletions
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19
src/driver/ATA.pas
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@ -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
@ -171,17 +172,17 @@ begin
if(devices[0].reading = true) 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;