acpiphp.h
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上传日期:2013-04-10
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- /*
- * 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 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
- * Copyright (c) 2002 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 <gregkh@us.ibm.com>,
- * <h-aono@ap.jp.nec.com>,
- * <t-kouchi@cq.jp.nec.com>
- *
- */
- #ifndef _ACPIPHP_H
- #define _ACPIPHP_H
- #include "include/acpi.h"
- #include "pci_hotplug.h"
- #if ACPI_CA_VERSION < 0x20020201
- /* until we get a new version of the ACPI driver for both ia32 and ia64 ... */
- #define acpi_util_eval_error(h,p,s)
- static acpi_status
- acpi_evaluate_integer (
- acpi_handle handle,
- acpi_string pathname,
- acpi_object_list *arguments,
- unsigned long *data)
- {
- acpi_status status = AE_OK;
- acpi_object element;
- acpi_buffer buffer = {sizeof(acpi_object), &element};
- if (!data)
- return AE_BAD_PARAMETER;
- status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
- if (ACPI_FAILURE(status)) {
- acpi_util_eval_error(handle, pathname, status);
- return status;
- }
- if (element.type != ACPI_TYPE_INTEGER) {
- acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
- return AE_BAD_DATA;
- }
- *data = element.integer.value;
- return AE_OK;
- }
- #else /* ACPI_CA_VERSION < 0x20020201 */
- #include "acpi_bus.h"
- #endif
- /* compatibility stuff for ACPI CA */
- #ifndef ACPI_MEMORY_RANGE
- #define ACPI_MEMORY_RANGE MEMORY_RANGE
- #endif
- #ifndef ACPI_IO_RANGE
- #define ACPI_IO_RANGE IO_RANGE
- #endif
- #ifndef ACPI_BUS_NUMBER_RANGE
- #define ACPI_BUS_NUMBER_RANGE BUS_NUMBER_RANGE
- #endif
- #ifndef ACPI_PREFETCHABLE_MEMORY
- #define ACPI_PREFETCHABLE_MEMORY PREFETCHABLE_MEMORY
- #endif
- #ifndef ACPI_PRODUCER
- #define ACPI_PRODUCER PRODUCER
- #endif
- #define dbg(format, arg...)
- do {
- if (debug)
- printk (KERN_DEBUG "%s: " format "n",
- MY_NAME , ## arg);
- } while (0)
- #define err(format, arg...) printk (KERN_ERR "%s: " format "n", MY_NAME , ## arg)
- #define info(format, arg...) printk (KERN_INFO "%s: " format "n", MY_NAME , ## arg)
- #define warn(format, arg...) printk (KERN_WARNING "%s: " format "n", MY_NAME , ## arg)
- #define SLOT_MAGIC 0x67267322
- /* name size which is used for entries in pcihpfs */
- #define SLOT_NAME_SIZE 16 /* ACPIxxxx */
- 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;
- /* if there are multiple corresponding ACPI slot objects,
- this points to one of them */
- 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;
- struct pci_ops *pci_ops;
- /* 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 acpiphp_func *func; /* functions */
- 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 slot 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 (x000000004)
- /* 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)
- /* not yet */
- #define SLOT_SUPPORT_66MHZ (0x00010000)
- #define SLOT_SUPPORT_100MHZ (0x00020000)
- #define SLOT_SUPPORT_133MHZ (0x00040000)
- #define SLOT_SUPPORT_PCIX (0x00080000)
- /* 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);
- /* 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 */
- #endif /* _ACPIPHP_H */