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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/hardware/hwregs.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/hardware/hwregs.c')
-rw-r--r--drivers/acpi/hardware/hwregs.c353
1 files changed, 0 insertions, 353 deletions
diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c
deleted file mode 100644
index 4bc3bbba6e9..00000000000
--- a/drivers/acpi/hardware/hwregs.c
+++ /dev/null
@@ -1,353 +0,0 @@
-
-/*******************************************************************************
- *
- * Module Name: hwregs - Read/write access functions for the various ACPI
- * control and status registers.
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * 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/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwregs")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_hw_clear_acpi_status
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clears all fixed and general purpose status bits
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status acpi_hw_clear_acpi_status(void)
-{
- acpi_status status;
- acpi_cpu_flags lock_flags = 0;
-
- ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
- ACPI_BITMASK_ALL_FIXED_STATUS,
- (u16) acpi_gbl_FADT.xpm1a_event_block.address));
-
- lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
- ACPI_BITMASK_ALL_FIXED_STATUS);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Clear the fixed events */
-
- if (acpi_gbl_FADT.xpm1b_event_block.address) {
- status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS,
- &acpi_gbl_FADT.xpm1b_event_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- /* Clear the GPE Bits in all GPE registers in all GPE blocks */
-
- status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
-
- unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_hw_get_register_bit_mask
- *
- * PARAMETERS: register_id - Index of ACPI Register to access
- *
- * RETURN: The bitmask to be used when accessing the register
- *
- * DESCRIPTION: Map register_id into a register bitmask.
- *
- ******************************************************************************/
-
-struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
-{
- ACPI_FUNCTION_ENTRY();
-
- if (register_id > ACPI_BITREG_MAX) {
- ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
- register_id));
- return (NULL);
- }
-
- return (&acpi_gbl_bit_register_info[register_id]);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_register_read
- *
- * PARAMETERS: register_id - ACPI Register ID
- * return_value - Where the register value is returned
- *
- * RETURN: Status and the value read.
- *
- * DESCRIPTION: Read from the specified ACPI register
- *
- ******************************************************************************/
-acpi_status
-acpi_hw_register_read(u32 register_id, u32 * return_value)
-{
- u32 value1 = 0;
- u32 value2 = 0;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_register_read);
-
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_read(&value2, &acpi_gbl_xpm1b_enable);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- status =
- acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8);
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id));
- status = AE_BAD_PARAMETER;
- break;
- }
-
- exit:
-
- if (ACPI_SUCCESS(status)) {
- *return_value = value1;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_register_write
- *
- * PARAMETERS: register_id - ACPI Register ID
- * Value - The value to write
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to the specified ACPI register
- *
- * NOTE: In accordance with the ACPI specification, this function automatically
- * preserves the value of the following bits, meaning that these bits cannot be
- * changed via this interface:
- *
- * PM1_CONTROL[0] = SCI_EN
- * PM1_CONTROL[9]
- * PM1_STATUS[11]
- *
- * ACPI References:
- * 1) Hardware Ignored Bits: When software writes to a register with ignored
- * bit fields, it preserves the ignored bit fields
- * 2) SCI_EN: OSPM always preserves this bit position
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_register_write(u32 register_id, u32 value)
-{
- acpi_status status;
- u32 read_value;
-
- ACPI_FUNCTION_TRACE(hw_register_write);
-
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
-
- /* Perform a read first to preserve certain bits (per ACPI spec) */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block);
- break;
-
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_write(value, &acpi_gbl_xpm1b_enable);
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- /*
- * Perform a read first to preserve certain bits (per ACPI spec)
- */
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
- break;
-
- case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- /* SMI_CMD is currently always in IO space */
-
- status =
- acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8);
- break;
-
- default:
- status = AE_BAD_PARAMETER;
- break;
- }
-
- exit:
- return_ACPI_STATUS(status);
-}