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ACPI-20030228 and custom dsdt

DISCUSSION Greg Oliver 4 participants 4 messages Mar 4, 2003 2 messages not in the archive ACPI

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Greg Oliver

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#0 lore raw

What is the secret for incorporating this into the 2.4.21-pre4 kernel sources? All patches apply cleanly, but all available methods to use my own DSDT fail compilation.

I have tried the diff for osl.c from the wikiwiki site as well as 2 or 3 other recommendations, to no avail. Is there somewhere simple I can just put the .hex file?

Thanks,

Greg Oliver

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#2 lore raw

No... You apply the diff to osl.c that expects an external variable called AmlCode.
You then have to rename the dsdt.hex into something that will compile. I think 2.4 make will pick up the file but with 2.5 you have to modify the make file.
Alternatively, you can add #include "dsdt.hex" to the osl.c file...

Quoted 23 lines · Greg Oliver

What is the secret for incorporating this into the 2.4.21-pre4 kernel sources? All patches apply cleanly, but all available methods to use my own DSDT fail compilation.

I have tried the diff for osl.c from the wikiwiki site as well as 2 or 3 other recommendations, to no avail. Is there somewhere simple I can just put the .hex file?

Thanks,

Greg Oliver

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Darren




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#4 lore raw
Quoted 6 lines · Darren Benham

No... You apply the diff to osl.c that expects an external variable called AmlCode.
You then have to rename the dsdt.hex into something that will compile. I think 2.4 make will pick up the file but with 2.5 you have to modify the make file.
Alternatively, you can add #include "dsdt.hex" to the osl.c file...

http://www.poupinou.org/apci/over.html

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#5 lore raw
In reply to a message not in the archive
Quoted 3 lines · Greg Oliver

What is the secret for incorporating this into the 2.4.21-pre4 kernel sources? All patches apply cleanly, but all available methods to use my own DSDT fail compilation.

This still works for me.

Regards,

Nigel

drivers/acpi/dsdt_table.h +15 -0
diff -ruN linux-2.4.18/drivers/acpi/dsdt_table.h linux-2.4.18-use-my-dsdt/drivers/acpi/dsdt_table.h
@@ -0,0 +1,2526 @@
+/*
+ * 
+ * Intel ACPI Component Architecture ASL Compiler X2046 [Jun 11 2002]
+ * Includes ACPI CA Subsystem version 20020611
+ * Copyright (C) 2000 - 2002 Intel Corporation
+ * Supports ACPI Specification Revision 2.0a
+ * 
+ * Compilation of "nigel.v3.asl" - Thu Jun 27 07:37:12 2002
+ * 
+ * C source code output
+ *
+ */
+unsigned char AmlCode[] = 
+{
+    0x44,0x53,0x44,0x54,0x73,0x4E,0x00,0x00,  /* 00000000 "DSDTsN.."  */

[deletia]

+ 0x53,0x08,0x5F,0x41,0x44,0x52,0x0C,0x03, /* 00004E68 "S._ADR.." */
+ 0x00,0x1F,0x00,
+};

drivers/acpi/osl.c renamed from drivers/acpi/osl.c-dist +3 -1
diff -ruN linux-2.4.18/drivers/acpi/dsdt.h linux-2.4.18-use-my-dsdt/drivers/acpi/dsdt.h
@@ -25,6 +25,7 @@
  *
  */
 
+#include "dsdt_table.h"
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>

@@ -208,7 +209,8 @@
 	if (!existing_table || !new_table)
 		return AE_BAD_PARAMETER;
 
-	*new_table = NULL;
+	*new_table = (strncmp(existing_table->signature, DSDT_SIG, 4)) ? NULL \
+			: (struct acpi_table_header *) AmlCode;
 	return AE_OK;
 }

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