/* * 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 * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com) * Copyright (C) 2003-2005 Hewlett Packard * * 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 <gregkh@us.ibm.com>, * <t-kochi@bq.jp.nec.com> * */ #ifndef _ACPIPHP_H #define _ACPIPHP_H #include <linux/acpi.h> #include <linux/mutex.h> #include <linux/pci_hotplug.h> #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) struct acpiphp_context; struct acpiphp_bridge; struct acpiphp_slot; /* * struct slot - slot information for each *physical* slot */ struct slot { struct hotplug_slot *hotplug_slot; struct acpiphp_slot *acpi_slot; struct hotplug_slot_info info; }; static inline const char *slot_name(struct slot *slot) { return hotplug_slot_name(slot->hotplug_slot); } /* * struct acpiphp_bridge - PCI bridge information * * for each bridge device in ACPI namespace */ struct acpiphp_bridge { struct list_head list; struct list_head slots; struct kref ref; acpi_handle handle; struct acpiphp_context *context; int nr_slots; 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; }; /* * struct acpiphp_slot - PCI slot information * * PCI slot information for each *physical* PCI slot */ struct acpiphp_slot { struct list_head node; struct acpiphp_bridge *bridge; /* parent */ struct list_head funcs; /* one slot may have different objects (i.e. for each function) */ struct slot *slot; struct mutex crit_sect; u8 device; /* pci device# */ unsigned long long sun; /* ACPI _SUN (slot unique number) */ 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_context *context; struct acpiphp_slot *slot; /* parent */ struct list_head sibling; acpi_handle handle; u8 function; /* pci function# */ u32 flags; /* see below */ }; struct acpiphp_context { acpi_handle handle; struct acpiphp_func *func; struct acpiphp_bridge *bridge; unsigned int refcount; }; /* * struct acpiphp_attention_info - device specific attention registration * * ACPI has no generic method of setting/getting attention status * this allows for device specific driver registration */ struct acpiphp_attention_info { int (*set_attn)(struct hotplug_slot *slot, u8 status); int (*get_attn)(struct hotplug_slot *slot, u8 *status); struct module *owner; }; /* PCI bus bridge HID */ #define ACPI_PCI_HOST_HID "PNP0A03" /* ACPI _STA method value (ignore bit 4; battery present) */ #define ACPI_STA_ALL (0x0000000f) /* bridge flags */ #define BRIDGE_HAS_EJ0 (0x00000001) /* 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) #define FUNC_HAS_DCK (0x00000100) /* function prototypes */ /* acpiphp_core.c */ int acpiphp_register_attention(struct acpiphp_attention_info*info); int acpiphp_unregister_attention(struct acpiphp_attention_info *info); int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot); void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot); /* acpiphp_glue.c */ typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data); int acpiphp_enable_slot(struct acpiphp_slot *slot); int acpiphp_disable_slot(struct acpiphp_slot *slot); int acpiphp_eject_slot(struct acpiphp_slot *slot); u8 acpiphp_get_power_status(struct acpiphp_slot *slot); u8 acpiphp_get_attention_status(struct acpiphp_slot *slot); u8 acpiphp_get_latch_status(struct acpiphp_slot *slot); u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot); /* variables */ extern bool acpiphp_debug; extern bool acpiphp_disabled; #endif /* _ACPIPHP_H */