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/******************************************************************************

 *

 * Module Name: utinit - Common ACPI subsystem initialization

 *

 *****************************************************************************/

/*

 * Copyright (C) 2000 - 2004, R. Byron Moore

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions, and the following disclaimer,

 *    without modification.

 * 2. Redistributions in binary form must reproduce at minimum a disclaimer

 *    substantially similar to the "NO WARRANTY" disclaimer below

 *    ("Disclaimer") and any redistribution must be conditioned upon

 *    including a substantially similar Disclaimer requirement for further

 *    binary redistribution.

 * 3. Neither the names of the above-listed copyright holders nor the names

 *    of any contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * Alternatively, this software may be distributed under the terms of the

 * GNU General Public License ("GPL") version 2 as published by the Free

 * Software Foundation.

 *

 * NO WARRANTY

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGES.

 */

#include <acpi/acpi.h>

#include <acpi/acnamesp.h>

#include <acpi/acevents.h>

#define _COMPONENT          ACPI_UTILITIES

         ACPI_MODULE_NAME    ("utinit")

/*******************************************************************************

 *

 * 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 void

acpi_ut_fadt_register_error (

        char                            *register_name,

        u32                             value,

        acpi_size                       offset)

{

        ACPI_REPORT_WARNING (

                ("Invalid FADT value %s=%X at offset %X FADT=%p\n",

                register_name, value, (u32) offset, acpi_gbl_FADT));

}

/******************************************************************************

 *

 * FUNCTION:    acpi_ut_validate_fadt

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Validate various ACPI registers in the FADT

 *

 ******************************************************************************/

acpi_status

acpi_ut_validate_fadt (

        void)

{

        /*

         * Verify Fixed ACPI Description Table fields,

         * but don't abort on any problems, just display error

         */

        if (acpi_gbl_FADT->pm1_evt_len < 4) {

                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) {

                acpi_ut_fadt_register_error ("PM1_CNT_LEN", 0,

                                  ACPI_FADT_OFFSET (pm1_cnt_len));

        }

        if (!acpi_gbl_FADT->xpm1a_evt_blk.address) {

                acpi_ut_fadt_register_error ("X_PM1a_EVT_BLK", 0,

                                  ACPI_FADT_OFFSET (xpm1a_evt_blk.address));

        }

        if (!acpi_gbl_FADT->xpm1a_cnt_blk.address) {

                acpi_ut_fadt_register_error ("X_PM1a_CNT_BLK", 0,

                                  ACPI_FADT_OFFSET (xpm1a_cnt_blk.address));

        }

        if (!acpi_gbl_FADT->xpm_tmr_blk.address) {

                acpi_ut_fadt_register_error ("X_PM_TMR_BLK", 0,

                                  ACPI_FADT_OFFSET (xpm_tmr_blk.address));

        }

        if ((acpi_gbl_FADT->xpm2_cnt_blk.address &&

                !acpi_gbl_FADT->pm2_cnt_len)) {

                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) {

                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_gbl_FADT->xgpe0_blk.address &&

                (acpi_gbl_FADT->gpe0_blk_len & 1)) {

                acpi_ut_fadt_register_error ("(x)GPE0_BLK_LEN",

                                  (u32) acpi_gbl_FADT->gpe0_blk_len,

                                  ACPI_FADT_OFFSET (gpe0_blk_len));

        }

        if (acpi_gbl_FADT->xgpe1_blk.address &&

                (acpi_gbl_FADT->gpe1_blk_len & 1)) {

                acpi_ut_fadt_register_error ("(x)GPE1_BLK_LEN",

                                  (u32) acpi_gbl_FADT->gpe1_blk_len,

                                  ACPI_FADT_OFFSET (gpe1_blk_len));

        }

        return (AE_OK);

}

/******************************************************************************

 *

 * FUNCTION:    acpi_ut_terminate

 *

 * PARAMETERS:  none

 *

 * RETURN:      none

 *

 * DESCRIPTION: free global memory

 *

 ******************************************************************************/

void

acpi_ut_terminate (void)

{

        struct acpi_gpe_block_info      *gpe_block;

        struct acpi_gpe_block_info      *next_gpe_block;

        struct acpi_gpe_xrupt_info      *gpe_xrupt_info;

        struct acpi_gpe_xrupt_info      *next_gpe_xrupt_info;

        ACPI_FUNCTION_TRACE ("ut_terminate");

        /* Free global tables, etc. */

        /* Free global GPE blocks and related info structures */

        gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;

        while (gpe_xrupt_info) {

                gpe_block = gpe_xrupt_info->gpe_block_list_head;

                while (gpe_block) {

                        next_gpe_block = gpe_block->next;

                        ACPI_MEM_FREE (gpe_block->event_info);

                        ACPI_MEM_FREE (gpe_block->register_info);

                        ACPI_MEM_FREE (gpe_block);

                        gpe_block = next_gpe_block;

                }

                next_gpe_xrupt_info = gpe_xrupt_info->next;

                ACPI_MEM_FREE (gpe_xrupt_info);

                gpe_xrupt_info = next_gpe_xrupt_info;

        }

        return_VOID;

}

/*******************************************************************************

 *

 * 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.

 *

 ******************************************************************************/

void

acpi_ut_subsystem_shutdown (void)

{

        ACPI_FUNCTION_TRACE ("ut_subsystem_shutdown");

        /* Just exit if subsystem is already shutdown */

        if (acpi_gbl_shutdown) {

                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "ACPI Subsystem is already terminated\n"));

                return_VOID;

        }

        /* Subsystem appears active, go ahead and shut it down */

        acpi_gbl_shutdown = TRUE;

        ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem...\n"));

        /* Close the acpi_event Handling */

        acpi_ev_terminate ();

        /* Close the Namespace */

        acpi_ns_terminate ();

        /* Close the globals */

        acpi_ut_terminate ();

        /* Purge the local caches */

        (void) acpi_purge_cached_objects ();

        /* Debug only - display leftover memory allocation, if any */

#ifdef ACPI_DBG_TRACK_ALLOCATIONS

        acpi_ut_dump_allocations (ACPI_UINT32_MAX, NULL);

#endif

        return_VOID;

}