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From: Len Brown <lenb@kernel.org>
To: linux-acpi@vger.kernel.org
Cc: Len Brown <len.brown@intel.com>
Subject: [PATCH 19/30] ACPICA: add debug dump of BIOS _OSI strings
Date: Sat, 07 Feb 2009 01:41:27 -0500	[thread overview]
Message-ID: <3e0676a9b699d12b2bd0a8807459ac4277b181fc.1233988826.git.len.brown@intel.com> (raw)
In-Reply-To: <091d71e023557136e96f0e54f301497a3fc95dc3.1233988822.git.len.brown@intel.com>
In-Reply-To: <091d71e023557136e96f0e54f301497a3fc95dc3.1233988822.git.len.brown@intel.com>

From: Len Brown <len.brown@intel.com>

on boot, print out the OSI strings the BIOS uses to query the OS.

To see this output...

build with CONFIG_ACPI_DEBUG

boot with
"acpi.debug_level=4" (ACPI_LV_INFO) (enabled by default)
and
"acpi.debug_level=1" (ACPI_UTILITIES) (default is 0)

example output:

ACPI: BIOS _OSI(Windows 2001) supported
ACPI: BIOS _OSI(Windows 2001 SP1) supported
ACPI: BIOS _OSI(Windows 2001 SP2) supported
ACPI: BIOS _OSI(Windows 2006) supported
ACPI: BIOS _OSI(Linux) not-supported
ACPI: BIOS _OSI(FreeBSD) not-supported

Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/uteval.c |   21 +++++++++------------
 1 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index da9450b..9c9897d 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -116,9 +116,9 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	/* Default return value is SUPPORTED */
+	/* Default return value is 0, NOT-SUPPORTED */
 
-	return_desc->integer.value = ACPI_UINT32_MAX;
+	return_desc->integer.value = 0;
 	walk_state->return_desc = return_desc;
 
 	/* Compare input string to static table of supported interfaces */
@@ -127,10 +127,8 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 		if (!ACPI_STRCMP
 		    (string_desc->string.pointer,
 		     acpi_interfaces_supported[i])) {
-
-			/* The interface is supported */
-
-			return_ACPI_STATUS(AE_OK);
+			return_desc->integer.value = ACPI_UINT32_MAX;
+			goto done;
 		}
 	}
 
@@ -141,15 +139,14 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 	 */
 	status = acpi_os_validate_interface(string_desc->string.pointer);
 	if (ACPI_SUCCESS(status)) {
-
-		/* The interface is supported */
-
-		return_ACPI_STATUS(AE_OK);
+		return_desc->integer.value = ACPI_UINT32_MAX;
 	}
 
-	/* The interface is not supported */
+done:
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO, "ACPI: BIOS _OSI(%s) %ssupported\n",
+		string_desc->string.pointer,
+		return_desc->integer.value == 0 ? "not-" : ""));
 
-	return_desc->integer.value = 0;
 	return_ACPI_STATUS(AE_OK);
 }
 
-- 
1.5.6.6


  parent reply	other threads:[~2009-02-07  6:42 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-07  6:41 [PATCH 01/30] PM: Fix compilation warning in kernel/power/main.c Len Brown
2009-02-07  6:41 ` [PATCH 02/30] ACPI suspend: Fix compilation warnings in drivers/acpi/sleep.c Len Brown
2009-02-07  6:41 ` [PATCH 03/30] ACPI: Fix crash on ASUS laptops Len Brown
2009-02-07  6:41 ` [PATCH 04/30] panasonic-laptop: fix X[ ARRAY_SIZE(X) ] Len Brown
2009-02-07  6:41 ` [PATCH 05/30] eeepc-laptop: split eeepc_backlight_exit() Len Brown
2009-02-07  6:41 ` [PATCH 06/30] asus_acpi: Add R1F support Len Brown
2009-02-07  6:41 ` [PATCH 07/30] asus-laptop: use generic netlink interface Len Brown
2009-02-07  6:41 ` [PATCH 08/30] asus-laptop: hotkeys via the generic input interface Len Brown
2009-02-07  6:41 ` [PATCH 09/30] asus-laptop: update Kconfig for input layer Len Brown
2009-02-07  6:41 ` [PATCH 10/30] asus-laptop: fix label indentation Len Brown
2009-02-07  6:41 ` [PATCH 11/30] eeepc-laptop: Add support for extended hotkeys Len Brown
2009-02-07  6:41 ` [PATCH 12/30] eeepc-laptop: Check return values from rfkill_register Len Brown
2009-02-07  6:41 ` [PATCH 13/30] eeepc-laptop: Implement rfkill hotplugging in eeepc-laptop Len Brown
2009-02-07  6:41 ` [PATCH 14/30] eeepc-laptop: use netlink interface Len Brown
2009-02-07  6:41 ` [PATCH 15/30] ACPI: remove locking from PM1x_STS register reads Len Brown
2009-02-07  6:41 ` [PATCH 16/30] ACPI: remove BM_RLD access from idle entry path Len Brown
2009-02-07  6:41 ` [PATCH 17/30] ACPI: Skip the first two elements in the _BCL package Len Brown
2009-02-07  6:41 ` [PATCH 18/30] ACPI: proc_dir_entry 'video/VGA' already registered Len Brown
2009-02-07  6:41 ` Len Brown [this message]
2009-02-07  6:41 ` [PATCH 20/30] ACPI: make some IO ports off-limits to AML Len Brown
2009-02-07  6:41 ` [PATCH 21/30] ACPI: cpufreq: Remove deprecated /proc/acpi/processor/../performance proc entries Len Brown
2009-02-07  6:41 ` [PATCH 22/30] ACPI: delete CPU_IDLE=n code Len Brown
2009-02-07  6:41 ` [PATCH 23/30] ACPI: disable ACPI cleanly when bad RSDP found Len Brown
2009-02-07  6:41 ` [PATCH 24/30] ACPI: dock: Don't eval _STA on every show_docked sysfs read Len Brown
2009-02-07  6:41 ` [PATCH 25/30] ACPI: add missing KERN_* constants to printks Len Brown
2009-02-07  6:41 ` [PATCH 26/30] ACPI: struct device - replace bus_id with dev_name(), dev_set_name() Len Brown
2009-02-07  6:41 ` [PATCH 27/30] ACPI: Enable bit 11 in _PDC to advertise hw coord Len Brown
2009-02-07  6:41 ` [PATCH 28/30] ACPICA: Fix table entry truncation calculation Len Brown
2009-02-07  6:41 ` [PATCH 29/30] eeepc-laptop: fix oops when changing backlight brightness during eeepc-laptop init Len Brown
2009-02-07  6:41 ` [PATCH 30/30] ACPI: Kconfig text - Fix the ACPI_CONTAINER module name according to the real module name Len Brown

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