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KimisOS
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Added lock to ata_write()

This commit is contained in:
notsomeidiot123 2026-03-01 01:26:35 -05:00
parent 3a9e7889ae
commit 348fb08043
1 changed files with 15 additions and 4 deletions
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19
src/kmodules/disk_driver.c
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@ -196,6 +196,17 @@ uint32_t find_free_drive(){
int ata_write(vfile_t *file, void *ptr, uint32_t offset, uint32_t count){ int ata_write(vfile_t *file, void *ptr, uint32_t offset, uint32_t count){
if (count == 0) return -1; if (count == 0) return -1;
// while(transferring_disk_index != -1); // while(transferring_disk_index != -1);
if(!is_interrupt(api)){
asm("cli");
while(locked){
asm("sti");
puts(api, "KIDM", "Locked\n");
asm("int $32");
asm("cli");
}
locked = 1;
asm("sti");
}
drive_t drive = drives[file->mount_id]; drive_t drive = drives[file->mount_id];
uint16_t io_base = drive.BARs[0] &0xfffe; uint16_t io_base = drive.BARs[0] &0xfffe;
uint16_t ctrl_base = drive.BARs[1] &0xfffe; uint16_t ctrl_base = drive.BARs[1] &0xfffe;
@ -258,6 +269,10 @@ int ata_write(vfile_t *file, void *ptr, uint32_t offset, uint32_t count){
expected_ints = pages; expected_ints = pages;
recieved_ints = 0; recieved_ints = 0;
uint32_t cpid = api(MODULE_API_GET_CPID);
api(MODULE_API_PRINT, MODULE_NAME, "Cpid: %x", cpid);
api(MODULE_API_BLOCK_PID, cpid);
transferring_pid = cpid;
outb(bm_base, 0x01); outb(bm_base, 0x01);
@ -276,10 +291,6 @@ int ata_write(vfile_t *file, void *ptr, uint32_t offset, uint32_t count){
// while(ATA_BSY(status)){ // while(ATA_BSY(status)){
// status = inb(io_base + ATA_STATUS); // status = inb(io_base + ATA_STATUS);
// } // }
uint32_t cpid = api(MODULE_API_GET_CPID);
api(MODULE_API_PRINT, MODULE_NAME, "Cpid: %x", cpid);
api(MODULE_API_BLOCK_PID, cpid);
transferring_pid = cpid;
if(!is_interrupt){ if(!is_interrupt){
asm("int $32\n"); asm("int $32\n");
} }