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/*
Copyright (C) 2021 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
The GNU Hurd 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, or (at
your option) any later version.
The GNU Hurd 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 the GNU Hurd. If not, see <http://www.gnu.org/licenses/>.
*/
/* Implementation of ACPI operations */
#include <acpi_S.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/io.h>
#include <idvec.h>
#include <acpi/acpi_init.h>
#include "acpifs.h"
static error_t
check_permissions (struct protid *master, int flags)
{
struct node *node;
struct acpifs_dirent *e;
node = master->po->np;
e = node->nn->ln;
/* Check whether the user has permissions to access this node */
return entry_check_perms (master->user, e, flags);
}
kern_return_t
S_acpi_sleep (struct protid *master,
int sleep_state)
{
error_t err;
if (!master)
return EOPNOTSUPP;
if (!master->user)
return EOPNOTSUPP;
if (!idvec_contains (master->user->uids, 0))
return EOPNOTSUPP;
/* Perform sleep */
acpi_enter_sleep(sleep_state);
/* Never reached */
return err;
}
kern_return_t
S_acpi_get_pci_irq (struct protid *master,
int bus,
int dev,
int func,
int *irq)
{
error_t err;
int ret;
if (!master)
return EOPNOTSUPP;
err = check_permissions (master, O_READ);
if (err)
return err;
ret = acpi_get_irq_number(bus, dev, func);
if (ret < 0)
return EIO;
*irq = ret;
return 0;
}
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