| /* | |
| * 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. | |
| * | |
| * 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, GOOD TITLE or | |
| * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| * | |
| * 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 | |
| * @owner: The module owner of this structure | |
| * @mod_name: The module name (KBUILD_MODNAME) of this structure | |
| * @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. | |
| * If this field is NULL, the value passed in the struct hotplug_slot_info | |
| * will be used when this value is requested by a user. | |
| * @get_attention_status: Called to get the current attention status of a slot. | |
| * If this field is NULL, the value passed in the struct hotplug_slot_info | |
| * will be used when this value is requested by a user. | |
| * @get_latch_status: Called to get the current latch status of a slot. | |
| * If this field is NULL, the value passed in the struct hotplug_slot_info | |
| * will be used when this value is requested by a user. | |
| * @get_adapter_status: Called to get see if an adapter is present in the slot or not. | |
| * If this field is NULL, the value passed in the struct hotplug_slot_info | |
| * will be used when this value is requested by a user. | |
| * @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 { | |
| struct module *owner; | |
| const char *mod_name; | |
| 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, int probe); | |
| }; | |
| /** | |
| * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot | |
| * @power_status: if power is enabled or not (1/0) | |
| * @attention_status: if the attention light is enabled or not (1/0) | |
| * @latch_status: if the latch (if any) is open or closed (1/0) | |
| * @adapter_status: if there is a pci board present in the slot or not (1/0) | |
| * | |
| * Used to notify the hotplug pci core of the status of a specific slot. | |
| */ | |
| struct hotplug_slot_info { | |
| u8 power_status; | |
| u8 attention_status; | |
| u8 latch_status; | |
| u8 adapter_status; | |
| }; | |
| /** | |
| * 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 | |
| * @info: pointer to the &struct hotplug_slot_info for the initial values for | |
| * this slot. | |
| * @release: called during pci_hp_deregister to free memory allocated in a | |
| * hotplug_slot structure. | |
| * @private: used by the hotplug pci controller driver to store whatever it | |
| * needs. | |
| */ | |
| struct hotplug_slot { | |
| struct hotplug_slot_ops *ops; | |
| struct hotplug_slot_info *info; | |
| void (*release) (struct hotplug_slot *slot); | |
| void *private; | |
| /* Variables below this are for use only by the hotplug pci core. */ | |
| struct list_head slot_list; | |
| struct pci_slot *pci_slot; | |
| }; | |
| 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_deregister(struct hotplug_slot *slot); | |
| int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot, | |
| struct hotplug_slot_info *info); | |
| /* 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) | |
| /* PCI Setting Record (Type 0) */ | |
| struct hpp_type0 { | |
| u32 revision; | |
| u8 cache_line_size; | |
| u8 latency_timer; | |
| u8 enable_serr; | |
| u8 enable_perr; | |
| }; | |
| /* PCI-X Setting Record (Type 1) */ | |
| struct hpp_type1 { | |
| u32 revision; | |
| u8 max_mem_read; | |
| u8 avg_max_split; | |
| u16 tot_max_split; | |
| }; | |
| /* PCI Express Setting Record (Type 2) */ | |
| struct hpp_type2 { | |
| u32 revision; | |
| u32 unc_err_mask_and; | |
| u32 unc_err_mask_or; | |
| u32 unc_err_sever_and; | |
| u32 unc_err_sever_or; | |
| u32 cor_err_mask_and; | |
| u32 cor_err_mask_or; | |
| u32 adv_err_cap_and; | |
| u32 adv_err_cap_or; | |
| u16 pci_exp_devctl_and; | |
| u16 pci_exp_devctl_or; | |
| u16 pci_exp_lnkctl_and; | |
| u16 pci_exp_lnkctl_or; | |
| u32 sec_unc_err_sever_and; | |
| u32 sec_unc_err_sever_or; | |
| u32 sec_unc_err_mask_and; | |
| u32 sec_unc_err_mask_or; | |
| }; | |
| struct hotplug_params { | |
| struct hpp_type0 *t0; /* Type0: NULL if not available */ | |
| struct hpp_type1 *t1; /* Type1: NULL if not available */ | |
| struct hpp_type2 *t2; /* Type2: NULL if not available */ | |
| struct hpp_type0 type0_data; | |
| struct hpp_type1 type1_data; | |
| struct hpp_type2 type2_data; | |
| }; | |
| #ifdef CONFIG_ACPI | |
| #include <linux/acpi.h> | |
| int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp); | |
| int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags); | |
| int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle); | |
| int acpi_pci_detect_ejectable(acpi_handle handle); | |
| #else | |
| static inline int pci_get_hp_params(struct pci_dev *dev, | |
| struct hotplug_params *hpp) | |
| { | |
| return -ENODEV; | |
| } | |
| #endif | |
| #endif |