Changeset 616 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers

Timestamp:

Aug 8, 2021, 7:03:21 PM (3 years ago)

Author:

Tomi Tilli

Message:

• Added check for APM

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm

@@ -197 +197 @@
 ;;; InitStandbyTimer
     ; Initialize the standby timer (if supported)
-    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_POWER_MANAGEMENT_SUPPORTED
+    mov     dh, [di+DPT.bFlagsHigh]
+    test    dh, FLGH_DPT_POWER_MANAGEMENT_SUPPORTED
     jz      SHORT .NoPowerManagementSupport
 
     ; Do we need to disable APM?
-;TODO: We should check APM feature set flag from ATA ID word 83. The above
-;FLGH_DPT_POWER_MANAGEMENT_SUPPORTED is from ATA ID word 82
     mov     dl, [cs:ROMVARS.bIdleTimeout]
     push    dx
     push    dx
+    test    dh, FLGH_DPT_APM_SUPPORTED
+    jz      SHORT .NoAdvancedPowerManagementSupport
     call    AH23h_EnableOrDisableAdvancedPowerManagement
+.NoAdvancedPowerManagementSupport:
 
     ; COMMAND_IDLE is not enough for Toshiba 1,8" HDD since idle mode is the default mode