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| author | Kevin O'Connor <kevin@koconnor.net> | 2010-09-19 22:13:18 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2010-09-25 11:34:46 -0400 |
| commit | d4bded451c3497d43ab50640bd6972d31766ec90 (patch) | |
| tree | 73b19768aafb321b2a4234108092823121569979 /src/acpi-dsdt.dsl | |
| parent | 2f96800197c2302ba72bf4dc4748234b835aa2b1 (diff) | |
| download | seabios-hppa-d4bded451c3497d43ab50640bd6972d31766ec90.zip seabios-hppa-d4bded451c3497d43ab50640bd6972d31766ec90.tar.gz seabios-hppa-d4bded451c3497d43ab50640bd6972d31766ec90.tar.bz2 | |
Add a debug method to AML code.
Add DBUG() method to AML - it can write output to the standard qemu
bios debug port (port 0x402).
Diffstat (limited to 'src/acpi-dsdt.dsl')
| -rw-r--r-- | src/acpi-dsdt.dsl | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/acpi-dsdt.dsl b/src/acpi-dsdt.dsl index 640716c..bb0a176 100644 --- a/src/acpi-dsdt.dsl +++ b/src/acpi-dsdt.dsl @@ -28,13 +28,27 @@ DefinitionBlock ( Scope (\) { /* Debug Output */ - OperationRegion (DBG, SystemIO, 0xb044, 0x04) - Field (DBG, DWordAcc, NoLock, Preserve) + OperationRegion (DBG, SystemIO, 0x0402, 0x01) + Field (DBG, ByteAcc, NoLock, Preserve) { - DBGL, 32, + DBGB, 8, } - } + /* Debug method - use this method to send output to the QEMU + * BIOS debug port. This method handles strings, integers, + * and buffers. For example: DBUG("abc") DBUG(0x123) */ + Method(DBUG, 1) { + ToHexString(Arg0, Local0) + ToBuffer(Local0, Local0) + Subtract(SizeOf(Local0), 1, Local1) + Store(Zero, Local2) + While (LLess(Local2, Local1)) { + Store(DerefOf(Index(Local0, Local2)), DBGB) + Increment(Local2) + } + Store(0x0A, DBGB) + } + } /* PCI Bus definition */ Scope(\_SB) { |