/* * ACPI PCI Hot Plug Controller Driver * * Copyright (C) 1995,2001 Compaq Computer Corporation * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001 IBM Corp. * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com) * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com) * Copyright (C) 2002,2003 NEC Corporation * * 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 , * * */ #ifndef _ACPIPHP_H #define _ACPIPHP_H #include #include "pci_hotplug.h" #include #define dbg(format, arg...) \ do { \ if (acpiphp_debug) \ printk(KERN_DEBUG "%s: " format, \ MY_NAME , ## arg); \ } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) #define SLOT_MAGIC 0x67267322 /* name size which is used for entries in pcihpfs */ #define SLOT_NAME_SIZE 16 /* {_SUN} */ struct acpiphp_bridge; struct acpiphp_slot; struct pci_resource; /* * struct slot - slot information for each *physical* slot */ struct slot { u32 magic; u8 number; struct hotplug_slot *hotplug_slot; struct list_head slot_list; struct acpiphp_slot *acpi_slot; }; /* * struct pci_resource - describes pci resource (mem, pfmem, io, bus) */ struct pci_resource { struct pci_resource * next; u64 base; u32 length; }; /** * struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters * @cache_line_size in DWORD * @latency_timer in PCI clock * @enable_SERR 0 or 1 * @enable_PERR 0 or 1 */ struct hpp_param { u8 cache_line_size; u8 latency_timer; u8 enable_SERR; u8 enable_PERR; }; /** * struct acpiphp_bridge - PCI bridge information * * for each bridge device in ACPI namespace */ struct acpiphp_bridge { struct list_head list; acpi_handle handle; struct acpiphp_slot *slots; int type; int nr_slots; u8 seg; u8 bus; u8 sub; u32 flags; /* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */ struct pci_bus *pci_bus; /* PCI-to-PCI bridge device */ struct pci_dev *pci_dev; /* ACPI 2.0 _HPP parameters */ struct hpp_param hpp; spinlock_t res_lock; /* available resources on this bus */ struct pci_resource *mem_head; struct pci_resource *p_mem_head; struct pci_resource *io_head; struct pci_resource *bus_head; }; /** * struct acpiphp_slot - PCI slot information * * PCI slot information for each *physical* PCI slot */ struct acpiphp_slot { struct acpiphp_slot *next; struct acpiphp_bridge *bridge; /* parent */ struct list_head funcs; /* one slot may have different objects (i.e. for each function) */ struct semaphore crit_sect; u32 id; /* slot id (serial #) for hotplug core */ u8 device; /* pci device# */ u32 sun; /* ACPI _SUN (slot unique number) */ u32 slotno; /* slot number relative to bridge */ u32 flags; /* see below */ }; /** * struct acpiphp_func - PCI function information * * PCI function information for each object in ACPI namespace * typically 8 objects per slot (i.e. for each PCI function) */ struct acpiphp_func { struct acpiphp_slot *slot; /* parent */ struct list_head sibling; struct pci_dev *pci_dev; acpi_handle handle; u8 function; /* pci function# */ u32 flags; /* see below */ /* resources used for this function */ struct pci_resource *mem_head; struct pci_resource *p_mem_head; struct pci_resource *io_head; struct pci_resource *bus_head; }; /* PCI bus bridge HID */ #define ACPI_PCI_HOST_HID "PNP0A03" /* PCI BRIDGE type */ #define BRIDGE_TYPE_HOST 0 #define BRIDGE_TYPE_P2P 1 /* ACPI _STA method value (ignore bit 4; battery present) */ #define ACPI_STA_PRESENT (0x00000001) #define ACPI_STA_ENABLED (0x00000002) #define ACPI_STA_SHOW_IN_UI (0x00000004) #define ACPI_STA_FUNCTIONING (0x00000008) #define ACPI_STA_ALL (0x0000000f) /* bridge flags */ #define BRIDGE_HAS_STA (0x00000001) #define BRIDGE_HAS_EJ0 (0x00000002) #define BRIDGE_HAS_HPP (0x00000004) #define BRIDGE_HAS_PS0 (0x00000010) #define BRIDGE_HAS_PS1 (0x00000020) #define BRIDGE_HAS_PS2 (0x00000040) #define BRIDGE_HAS_PS3 (0x00000080) /* slot flags */ #define SLOT_POWEREDON (0x00000001) #define SLOT_ENABLED (0x00000002) #define SLOT_MULTIFUNCTION (0x00000004) /* function flags */ #define FUNC_HAS_STA (0x00000001) #define FUNC_HAS_EJ0 (0x00000002) #define FUNC_HAS_PS0 (0x00000010) #define FUNC_HAS_PS1 (0x00000020) #define FUNC_HAS_PS2 (0x00000040) #define FUNC_HAS_PS3 (0x00000080) /* function prototypes */ /* acpiphp_glue.c */ extern int acpiphp_glue_init (void); extern void acpiphp_glue_exit (void); extern int acpiphp_get_num_slots (void); extern struct acpiphp_slot *get_slot_from_id (int id); typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data); extern int acpiphp_for_each_slot (acpiphp_callback fn, void *data); extern int acpiphp_check_bridge (struct acpiphp_bridge *bridge); extern int acpiphp_enable_slot (struct acpiphp_slot *slot); extern int acpiphp_disable_slot (struct acpiphp_slot *slot); extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot); extern u32 acpiphp_get_address (struct acpiphp_slot *slot); /* acpiphp_pci.c */ extern struct pci_dev *acpiphp_allocate_pcidev (struct pci_bus *pbus, int dev, int fn); extern int acpiphp_configure_slot (struct acpiphp_slot *slot); extern int acpiphp_configure_function (struct acpiphp_func *func); extern int acpiphp_unconfigure_function (struct acpiphp_func *func); extern int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge); extern int acpiphp_init_func_resource (struct acpiphp_func *func); /* acpiphp_res.c */ extern struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size); extern struct pci_resource *acpiphp_get_max_resource (struct pci_resource **head, u32 size); extern struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size); extern struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size); extern int acpiphp_resource_sort_and_combine (struct pci_resource **head); extern struct pci_resource *acpiphp_make_resource (u64 base, u32 length); extern void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to); extern void acpiphp_free_resource (struct pci_resource **res); extern void acpiphp_dump_resource (struct acpiphp_bridge *bridge); /* debug */ extern void acpiphp_dump_func_resource (struct acpiphp_func *func); /* debug */ /* variables */ extern int acpiphp_debug; #endif /* _ACPIPHP_H */