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Check if ATA is present

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This commit is contained in:
Alex 2023-04-20 03:25:21 +03:00
parent a631029d48
commit 5d0cc519ae
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 18 additions and 1 deletions
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19
Storage/ATA/ATA.cpp
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@ -31,6 +31,18 @@ KernelAPI *KAPI;
/* --------------------------------------------------------------------------------------------------------- */
bool IsATAPresent()
{
outb(0x1F0 + 2, 0);
outb(0x1F0 + 3, 0);
outb(0x1F0 + 4, 0);
outb(0x1F0 + 5, 0);
outb(0x1F0 + 7, 0xEC);
if (inb(0x1F0 + 7) == 0 || inb(0x1F0 + 1) != 0)
return false;
return true;
}
int DriverEntry(void *Data)
{
if (!Data)
@ -38,7 +50,12 @@ int DriverEntry(void *Data)
KAPI = (KernelAPI *)Data;
if (KAPI->Version.Major < 0 || KAPI->Version.Minor < 0 || KAPI->Version.Patch < 0)
return KERNEL_API_VERSION_NOT_SUPPORTED;
return OK;
if (!IsATAPresent())
return NOT_AVAILABLE;
print("ATA device found.");
return NOT_IMPLEMENTED;
}
int CallbackHandler(KernelCallback *Data)