/*
* acpi_osl.c - OS-dependent functions ($Revision: 83 $)
*
* Copyright (C) 2000 Andrew Henroid
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* 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 <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/kmod.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/nmi.h>
#include <acpi/acpi.h>
#include <asm/io.h>
#include <acpi/acpi_bus.h>
#include <acpi/processor.h>
#include <asm/uaccess.h>
#include <linux/efi.h>
#define _COMPONENT ACPI_OS_SERVICES
ACPI_MODULE_NAME ("osl")
#define PREFIX "ACPI: "
struct acpi_os_dpc
{
acpi_osd_exec_callback function;
void *context;
};
#ifdef CONFIG_ACPI_CUSTOM_DSDT
#include CONFIG_ACPI_CUSTOM_DSDT_FILE
#endif
#ifdef ENABLE_DEBUGGER
#include <linux/kdb.h>
/* stuff for debugger support */
int acpi_in_debugger;
EXPORT_SYMBOL(acpi_in_debugger);
extern char line_buf[80];
#endif /*ENABLE_DEBUGGER*/
int acpi_specific_hotkey_enabled;
EXPORT_SYMBOL(acpi_specific_hotkey_enabled);
static unsigned int acpi_irq_irq;
static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
static struct workqueue_struct *kacpid_wq;
acpi_status
acpi_os_initialize(void)
{
return AE_OK;
}
acpi_status
acpi_os_initialize1(void)
{
/*
* Initialize PCI configuration space access, as we'll need to access
* it while walking the namespace (bus 0 and root bridges w/ _BBNs).
*/
#ifdef CONFIG_ACPI_PCI
if (!raw_pci_ops) {
printk(KERN_ERR PREFIX "Access to PCI configuration space unavailable\n");
return AE_NULL_ENTRY;
}
#endif
kacpid_wq = create_singlethread_workqueue("kacpid");
BUG_ON(!kacpid_wq);
return AE_OK;
}
acpi_status
acpi_os_terminate(void)
{
if (acpi_irq_handler) {
acpi_os_remove_interrupt_handler(acpi_irq_irq,
acpi_irq_handler);
}
destroy_workqueue(kacpid_wq);
return AE_OK;
}
void
acpi_os_printf(const char *fmt,...)
{
va_list args;
va_start(args, fmt);
acpi_os_vprintf(fmt, args);
va_end(args);
}
EXPORT_SYMBOL(acpi_os_printf);
void
acpi_os_vprintf(const char *fmt, va_list args)
{
static char buffer[512];
vsprintf(buffer, fmt, args);
#ifdef ENABLE_DEBUGGER
if (acpi_in_debugger) {
kdb_printf("%s", buffer);
} else {
printk("%s", buffer);
}
#else
printk("%s", buffer);
#endif
}
void *
acpi_os_allocate(acpi_size size)
{
return kmalloc(size, GFP_KERNEL);
}
void
acpi_os_free(void *ptr)
{
kfree(ptr);
}
EXPORT_SYMBOL(acpi_os_free);
acpi_status
acpi_os_get_root_pointer(u32 flags, struct acpi_pointer *addr)
{
if (efi_enabled) {
addr->pointer_type = ACPI_PHYSICAL_POINTER;
if (efi.acpi20)
addr->pointer.physical =
(acpi_physical_address) virt_to_phys(efi.acpi20);
else if (efi.acpi)
addr->pointer.physical =
(acpi_physical_address) virt_to_phys(efi.acpi);
else {
printk(KERN_ERR PREFIX "System description tables not found\n");
return