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31c476da2d
Add the SET_SYSTEM_SLEEP_PM_OPS() by factoring some other macro code out in order to set the suspend/resume functions when the struct is already given. Such is the case in iwlwifi d3. Also add an initial implementation of device_can_wakeup(). Though this is likely all we need we have no way of setting the flag for it yet so leave a pr_debug() and a comment there as well. Until we want to support WoWLAN this is likely not needed for wireless. Doing it the proper way checking a bool in 'struct dev_pm_info' would change 'struct device' and with that 'struct pci_dev' and break the KBI. In favour of mergeability this version does not implement the full functionality yet. Both help to make an updated iwlwifi d3 compile. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D45358 (cherry picked from commit 3753988c5d22393fbdefb6aa16b5a5a699d05642)
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020-2024 The FreeBSD Foundation
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*
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* This software was developed by Björn Zeeb under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _LINUXKPI_LINUX_PM_H
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#define _LINUXKPI_LINUX_PM_H
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#include <linux/kernel.h> /* pr_debug */
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#include <asm/atomic.h>
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/* Needed but breaks linux_usb.c */
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/* #include <linux/completion.h> */
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/* #include <linux/wait.h> */
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struct device;
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typedef struct pm_message {
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int event;
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} pm_message_t;
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struct dev_pm_domain {
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};
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struct dev_pm_info {
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atomic_t usage_count;
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};
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#define PM_EVENT_FREEZE 0x0001
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#define PM_EVENT_SUSPEND 0x0002
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#define pm_sleep_ptr(_p) \
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IS_ENABLED(CONFIG_PM_SLEEP) ? (_p) : NULL
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#ifdef CONFIG_PM_SLEEP
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#define __SET_PM_OPS(_suspendfunc, _resumefunc) \
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.suspend = _suspendfunc, \
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.resume = _resumefunc, \
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.freeze = _suspendfunc, \
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.thaw = _resumefunc, \
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.poweroff = _suspendfunc, \
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.restore = _resumefunc, \
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#define SIMPLE_DEV_PM_OPS(_name, _suspendfunc, _resumefunc) \
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const struct dev_pm_ops _name = { \
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__SET_PM_OPS(_suspendfunc, _resumefunc) \
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}
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#define DEFINE_SIMPLE_DEV_PM_OPS(_name, _suspendfunc, _resumefunc) \
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const struct dev_pm_ops _name = { \
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__SET_PM_OPS(_suspendfunc, _resumefunc) \
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}
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#define SET_SYSTEM_SLEEP_PM_OPS(_suspendfunc, _resumefunc) \
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__SET_PM_OPS(_suspendfunc, _resumefunc)
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#else
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#define SIMPLE_DEV_PM_OPS(_name, _suspendfunc, _resumefunc) \
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const struct dev_pm_ops _name = { \
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}
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#define DEFINE_SIMPLE_DEV_PM_OPS(_name, _suspendfunc, _resumefunc) \
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const struct dev_pm_ops _name = { \
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}
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#endif
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bool linuxkpi_device_can_wakeup(struct device *);
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#define device_can_wakeup(_dev) linuxkpi_device_can_wakeup(_dev)
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static inline void
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pm_wakeup_event(struct device *dev __unused, unsigned int x __unused)
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{
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pr_debug("%s: TODO\n", __func__);
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}
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#endif /* _LINUXKPI_LINUX_PM_H */
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