| Quellcodebibliothek Statistik Leitseite products/sources/formale Sprachen/C/Linux/include/linux/ (Open Source Betriebssystem Version 6.17.9©) Datei vom 24.10.2025 mit Größe 4 kB |
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Quelle pci_hotplug.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0+ */
/* * PCI HotPlug Core Functions * * Copyright (C) 1995,2001 Compaq Computer Corporation * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001 IBM Corp. * * All rights reserved. * * Send feedback to <kristen.c.accardi@intel.com> * */ #ifndef _PCI_HOTPLUG_H #define _PCI_HOTPLUG_H /** * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use * @enable_slot: Called when the user wants to enable a specific pci slot * @disable_slot: Called when the user wants to disable a specific pci slot * @set_attention_status: Called to set the specific slot's attention LED to * the specified value * @hardware_test: Called to run a specified hardware test on the specified * slot. * @get_power_status: Called to get the current power status of a slot. * @get_attention_status: Called to get the current attention status of a slot. * @get_latch_status: Called to get the current latch status of a slot. * @get_adapter_status: Called to get see if an adapter is present in the slot or not. * @reset_slot: Optional interface to allow override of a bus reset for the * slot for cases where a secondary bus reset can result in spurious * hotplug events or where a slot can be reset independent of the bus. * * The table of function pointers that is passed to the hotplug pci core by a * hotplug pci driver. These functions are called by the hotplug pci core when * the user wants to do something to a specific slot (query it for information, * set an LED, enable / disable power, etc.) */ struct hotplug_slot_ops { int (*enable_slot) (struct hotplug_slot *slot); int (*disable_slot) (struct hotplug_slot *slot); int (*set_attention_status) (struct hotplug_slot *slot, u8 value); int (*hardware_test) (struct hotplug_slot *slot, u32 value); int (*get_power_status) (struct hotplug_slot *slot, u8 *value); int (*get_attention_status) (struct hotplug_slot *slot, u8 *value); int (*get_latch_status) (struct hotplug_slot *slot, u8 *value); int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value); int (*reset_slot) (struct hotplug_slot *slot, bool probe); }; /** * struct hotplug_slot - used to register a physical slot with the hotplug pci core * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot * @pci_slot: represents a physical slot * @owner: The module owner of this structure * @mod_name: The module name (KBUILD_MODNAME) of this structure */ struct hotplug_slot { const struct hotplug_slot_ops *ops; /* Variables below this are for use only by the hotplug pci core. */ struct pci_slot *pci_slot; struct module *owner; const char *mod_name; }; static inline const char *hotplug_slot_name(const struct hotplug_slot *slot) { return pci_slot_name(slot->pci_slot); } int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *pbus, int nr, const char *name, struct module *owner, const char *mod_name); int __pci_hp_initialize(struct hotplug_slot *slot, struct pci_bus *bus, int nr, const char *name, struct module *owner, const char *mod_name); int pci_hp_add(struct hotplug_slot *slot); void pci_hp_del(struct hotplug_slot *slot); void pci_hp_destroy(struct hotplug_slot *slot); void pci_hp_deregister(struct hotplug_slot *slot); /* use a define to avoid include chaining to get THIS_MODULE & friends */ #define pci_hp_register(slot, pbus, devnr, name) \ __pci_hp_register(slot, pbus, devnr, name, THIS_MODULE, KBUILD_MODNAME) #define pci_hp_initialize(slot, bus, nr, name) \ __pci_hp_initialize(slot, bus, nr, name, THIS_MODULE, KBUILD_MODNAME) #ifdef CONFIG_ACPI #include <linux/acpi.h> bool pciehp_is_native(struct pci_dev *bridge); int acpi_get_hp_hw_control_from_firmware(struct pci_dev *bridge); bool shpchp_is_native(struct pci_dev *bridge); int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle); int acpi_pci_detect_ejectable(acpi_handle handle); #else static inline int acpi_get_hp_hw_control_from_firmware(struct pci_dev *bridge) { return 0; } static inline bool pciehp_is_native(struct pci_dev *bridge) { return true; } static inline bool shpchp_is_native(struct pci_dev *bridge) { return true; } #endif static inline bool hotplug_is_native(struct pci_dev *bridge) { return (bridge->is_pciehp && pciehp_is_native(bridge)) || shpchp_is_native(bridge); } #endif ¤ Dauer der Verarbeitung: 0.3 Sekunden ¤*© Formatika GbR, Deutschland |
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2026-03-28