patch-2.4.6 linux/drivers/acpi/utilities/utinit.c

• Lines: 248
• Date: Wed Jun 20 17:47:40 2001
• Orig file: v2.4.5/linux/drivers/acpi/utilities/utinit.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/utilities/utinit.c linux/drivers/acpi/utilities/utinit.c
@@ -0,0 +1,247 @@
+/******************************************************************************
+ *
+ * Module Name: utinit - Common ACPI subsystem initialization
+ *              $Revision: 96 $
+ *
+ *****************************************************************************/
+
+/*
+ *  Copyright (C) 2000, 2001 R. Byron Moore
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "acpi.h"
+#include "achware.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#include "acparser.h"
+#include "acdispat.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+	 MODULE_NAME         ("utinit")
+
+
+#define ACPI_OFFSET(d,o)    ((u32) &(((d *)0)->o))
+#define ACPI_FADT_OFFSET(o) ACPI_OFFSET (FADT_DESCRIPTOR, o)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_fadt_register_error
+ *
+ * PARAMETERS:  *Register_name          - Pointer to string identifying register
+ *              Value                   - Actual register contents value
+ *              Acpi_test_spec_section  - TDS section containing assertion
+ *              Acpi_assertion          - Assertion number being tested
+ *
+ * RETURN:      AE_BAD_VALUE
+ *
+ * DESCRIPTION: Display failure message and link failure to TDS assertion
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+acpi_ut_fadt_register_error (
+	NATIVE_CHAR             *register_name,
+	u32                     value,
+	u32                     offset)
+{
+
+	REPORT_ERROR (
+		("Invalid FADT value %s=%lX at offset %lX FADT=%p\n",
+		register_name, value, offset, acpi_gbl_FADT));
+
+
+	return (AE_BAD_VALUE);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_validate_fadt
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Validate various ACPI registers in the FADT
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+acpi_ut_validate_fadt (
+	void)
+{
+	ACPI_STATUS                 status = AE_OK;
+
+
+	/*
+	 * Verify Fixed ACPI Description Table fields,
+	 * but don't abort on any problems, just display error
+	 */
+
+	if (acpi_gbl_FADT->pm1_evt_len < 4) {
+		status = acpi_ut_fadt_register_error ("PM1_EVT_LEN",
+				  (u32) acpi_gbl_FADT->pm1_evt_len,
+				  ACPI_FADT_OFFSET (pm1_evt_len));
+	}
+
+	if (!acpi_gbl_FADT->pm1_cnt_len) {
+		status = acpi_ut_fadt_register_error ("PM1_CNT_LEN", 0,
+				  ACPI_FADT_OFFSET (pm1_cnt_len));
+	}
+
+	if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_evt_blk.address)) {
+		status = acpi_ut_fadt_register_error ("X_PM1a_EVT_BLK", 0,
+				  ACPI_FADT_OFFSET (Xpm1a_evt_blk.address));
+	}
+
+	if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm1a_cnt_blk.address)) {
+		status = acpi_ut_fadt_register_error ("X_PM1a_CNT_BLK", 0,
+				  ACPI_FADT_OFFSET (Xpm1a_cnt_blk.address));
+	}
+
+	if (!ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm_tmr_blk.address)) {
+		status = acpi_ut_fadt_register_error ("X_PM_TMR_BLK", 0,
+				  ACPI_FADT_OFFSET (Xpm_tmr_blk.address));
+	}
+
+	if ((ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xpm2_cnt_blk.address) &&
+		!acpi_gbl_FADT->pm2_cnt_len)) {
+		status = acpi_ut_fadt_register_error ("PM2_CNT_LEN",
+				  (u32) acpi_gbl_FADT->pm2_cnt_len,
+				  ACPI_FADT_OFFSET (pm2_cnt_len));
+	}
+
+	if (acpi_gbl_FADT->pm_tm_len < 4) {
+		status = acpi_ut_fadt_register_error ("PM_TM_LEN",
+				  (u32) acpi_gbl_FADT->pm_tm_len,
+				  ACPI_FADT_OFFSET (pm_tm_len));
+	}
+
+	/* length of GPE blocks must be a multiple of 2 */
+
+
+	if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe0blk.address) &&
+		(acpi_gbl_FADT->gpe0blk_len & 1)) {
+		status = acpi_ut_fadt_register_error ("(x)GPE0_BLK_LEN",
+				  (u32) acpi_gbl_FADT->gpe0blk_len,
+				  ACPI_FADT_OFFSET (gpe0blk_len));
+	}
+
+	if (ACPI_VALID_ADDRESS (acpi_gbl_FADT->Xgpe1_blk.address) &&
+		(acpi_gbl_FADT->gpe1_blk_len & 1)) {
+		status = acpi_ut_fadt_register_error ("(x)GPE1_BLK_LEN",
+				  (u32) acpi_gbl_FADT->gpe1_blk_len,
+				  ACPI_FADT_OFFSET (gpe1_blk_len));
+	}
+
+	return (status);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_terminate
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      none
+ *
+ * DESCRIPTION: free memory allocated for table storage.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_terminate (void)
+{
+
+
+	/* Free global tables, etc. */
+
+	if (acpi_gbl_gpe0enable_register_save) {
+		acpi_ut_free (acpi_gbl_gpe0enable_register_save);
+	}
+
+	if (acpi_gbl_gpe1_enable_register_save) {
+		acpi_ut_free (acpi_gbl_gpe1_enable_register_save);
+	}
+
+
+	return;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_subsystem_shutdown
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      none
+ *
+ * DESCRIPTION: Shutdown the various subsystems.  Don't delete the mutex
+ *              objects here -- because the AML debugger may be still running.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+acpi_ut_subsystem_shutdown (void)
+{
+
+	/* Just exit if subsystem is already shutdown */
+
+	if (acpi_gbl_shutdown) {
+		return (AE_OK);
+	}
+
+	/* Subsystem appears active, go ahead and shut it down */
+
+	acpi_gbl_shutdown = TRUE;
+
+	/* Close the Namespace */
+
+	acpi_ns_terminate ();
+
+	/* Close the Acpi_event Handling */
+
+	acpi_ev_terminate ();
+
+	/* Close the globals */
+
+	acpi_ut_terminate ();
+
+	/* Flush the local cache(s) */
+
+	acpi_ut_delete_generic_state_cache ();
+	acpi_ut_delete_object_cache ();
+	acpi_ds_delete_walk_state_cache ();
+
+	/* Close the Parser */
+
+	/* TBD: [Restructure] Acpi_ps_terminate () */
+
+	acpi_ps_delete_parse_cache ();
+
+	/* Debug only - display leftover memory allocation, if any */
+#ifdef ENABLE_DEBUGGER
+	acpi_ut_dump_current_allocations (ACPI_UINT32_MAX, NULL);
+#endif
+
+	return (AE_OK);
+}
+
+