--- /dev/null
+/*
+ * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
+ *
+ * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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. 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef __ACPI_BUS_H__
+#define __ACPI_BUS_H__
+
+#include <linux/device.h>
+
+#include <acpi/acpi.h>
+
+#define PREFIX "ACPI: "
+
+/* TBD: Make dynamic */
+#define ACPI_MAX_HANDLES 10
+struct acpi_handle_list {
+ u32 count;
+ acpi_handle handles[ACPI_MAX_HANDLES];
+};
+
+/* acpi_utils.h */
+acpi_status
+acpi_extract_package(union acpi_object *package,
+ struct acpi_buffer *format, struct acpi_buffer *buffer);
+acpi_status
+acpi_evaluate_integer(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *arguments, unsigned long *data);
+acpi_status
+acpi_evaluate_reference(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *arguments,
+ struct acpi_handle_list *list);
+
+#ifdef CONFIG_ACPI
+
+#include <linux/proc_fs.h>
+
+#define ACPI_BUS_FILE_ROOT "acpi"
+extern struct proc_dir_entry *acpi_root_dir;
+extern struct fadt_descriptor acpi_fadt;
+
+enum acpi_bus_removal_type {
+ ACPI_BUS_REMOVAL_NORMAL = 0,
+ ACPI_BUS_REMOVAL_EJECT,
+ ACPI_BUS_REMOVAL_SUPRISE,
+ ACPI_BUS_REMOVAL_TYPE_COUNT
+};
+
+enum acpi_bus_device_type {
+ ACPI_BUS_TYPE_DEVICE = 0,
+ ACPI_BUS_TYPE_POWER,
+ ACPI_BUS_TYPE_PROCESSOR,
+ ACPI_BUS_TYPE_THERMAL,
+ ACPI_BUS_TYPE_SYSTEM,
+ ACPI_BUS_TYPE_POWER_BUTTON,
+ ACPI_BUS_TYPE_SLEEP_BUTTON,
+ ACPI_BUS_DEVICE_TYPE_COUNT
+};
+
+struct acpi_driver;
+struct acpi_device;
+
+/*
+ * ACPI Driver
+ * -----------
+ */
+
+typedef int (*acpi_op_add) (struct acpi_device * device);
+typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
+typedef int (*acpi_op_lock) (struct acpi_device * device, int type);
+typedef int (*acpi_op_start) (struct acpi_device * device);
+typedef int (*acpi_op_stop) (struct acpi_device * device, int type);
+typedef int (*acpi_op_suspend) (struct acpi_device * device, int state);
+typedef int (*acpi_op_resume) (struct acpi_device * device, int state);
+typedef int (*acpi_op_scan) (struct acpi_device * device);
+typedef int (*acpi_op_bind) (struct acpi_device * device);
+typedef int (*acpi_op_unbind) (struct acpi_device * device);
+typedef int (*acpi_op_match) (struct acpi_device * device,
+ struct acpi_driver * driver);
+
+struct acpi_bus_ops {
+ u32 acpi_op_add:1;
+ u32 acpi_op_remove:1;
+ u32 acpi_op_lock:1;
+ u32 acpi_op_start:1;
+ u32 acpi_op_stop:1;
+ u32 acpi_op_suspend:1;
+ u32 acpi_op_resume:1;
+ u32 acpi_op_scan:1;
+ u32 acpi_op_bind:1;
+ u32 acpi_op_unbind:1;
+ u32 acpi_op_match:1;
+ u32 reserved:21;
+};
+
+struct acpi_device_ops {
+ acpi_op_add add;
+ acpi_op_remove remove;
+ acpi_op_lock lock;
+ acpi_op_start start;
+ acpi_op_stop stop;
+ acpi_op_suspend suspend;
+ acpi_op_resume resume;
+ acpi_op_scan scan;
+ acpi_op_bind bind;
+ acpi_op_unbind unbind;
+ acpi_op_match match;
+};
+
+struct acpi_driver {
+ struct list_head node;
+ char name[80];
+ char class[80];
+ atomic_t references;
+ char *ids; /* Supported Hardware IDs */
+ struct acpi_device_ops ops;
+};
+
+/*
+ * ACPI Device
+ * -----------
+ */
+
+/* Status (_STA) */
+
+struct acpi_device_status {
+ u32 present:1;
+ u32 enabled:1;
+ u32 show_in_ui:1;
+ u32 functional:1;
+ u32 battery_present:1;
+ u32 reserved:27;
+};
+
+/* Flags */
+
+struct acpi_device_flags {
+ u32 dynamic_status:1;
+ u32 hardware_id:1;
+ u32 compatible_ids:1;
+ u32 bus_address:1;
+ u32 unique_id:1;
+ u32 removable:1;
+ u32 ejectable:1;
+ u32 lockable:1;
+ u32 suprise_removal_ok:1;
+ u32 power_manageable:1;
+ u32 performance_manageable:1;
+ u32 wake_capable:1; /* Wakeup(_PRW) supported? */
+ u32 force_power_state:1;
+ u32 reserved:19;
+};
+
+/* File System */
+
+struct acpi_device_dir {
+ struct proc_dir_entry *entry;
+};
+
+#define acpi_device_dir(d) ((d)->dir.entry)
+
+/* Plug and Play */
+
+typedef char acpi_bus_id[5];
+typedef unsigned long acpi_bus_address;
+typedef char acpi_hardware_id[9];
+typedef char acpi_unique_id[9];
+typedef char acpi_device_name[40];
+typedef char acpi_device_class[20];
+
+struct acpi_device_pnp {
+ acpi_bus_id bus_id; /* Object name */
+ acpi_bus_address bus_address; /* _ADR */
+ acpi_hardware_id hardware_id; /* _HID */
+ struct acpi_compatible_id_list *cid_list; /* _CIDs */
+ acpi_unique_id unique_id; /* _UID */
+ acpi_device_name device_name; /* Driver-determined */
+ acpi_device_class device_class; /* " */
+};
+
+#define acpi_device_bid(d) ((d)->pnp.bus_id)
+#define acpi_device_adr(d) ((d)->pnp.bus_address)
+#define acpi_device_hid(d) ((d)->pnp.hardware_id)
+#define acpi_device_uid(d) ((d)->pnp.unique_id)
+#define acpi_device_name(d) ((d)->pnp.device_name)
+#define acpi_device_class(d) ((d)->pnp.device_class)
+
+/* Power Management */
+
+struct acpi_device_power_flags {
+ u32 explicit_get:1; /* _PSC present? */
+ u32 power_resources:1; /* Power resources */
+ u32 inrush_current:1; /* Serialize Dx->D0 */
+ u32 power_removed:1; /* Optimize Dx->D0 */
+ u32 reserved:28;
+};
+
+struct acpi_device_power_state {
+ struct {
+ u8 valid:1;
+ u8 explicit_set:1; /* _PSx present? */
+ u8 reserved:6;
+ } flags;
+ int power; /* % Power (compared to D0) */
+ int latency; /* Dx->D0 time (microseconds) */
+ struct acpi_handle_list resources; /* Power resources referenced */
+};
+
+struct acpi_device_power {
+ int state; /* Current state */
+ struct acpi_device_power_flags flags;
+ struct acpi_device_power_state states[4]; /* Power states (D0-D3) */
+};
+
+/* Performance Management */
+
+struct acpi_device_perf_flags {
+ u8 reserved:8;
+};
+
+struct acpi_device_perf_state {
+ struct {
+ u8 valid:1;
+ u8 reserved:7;
+ } flags;
+ u8 power; /* % Power (compared to P0) */
+ u8 performance; /* % Performance ( " ) */
+ int latency; /* Px->P0 time (microseconds) */
+};
+
+struct acpi_device_perf {
+ int state;
+ struct acpi_device_perf_flags flags;
+ int state_count;
+ struct acpi_device_perf_state *states;
+};
+
+/* Wakeup Management */
+struct acpi_device_wakeup_flags {
+ u8 valid:1; /* Can successfully enable wakeup? */
+ u8 run_wake:1; /* Run-Wake GPE devices */
+};
+
+struct acpi_device_wakeup_state {
+ u8 enabled:1;
+ u8 active:1;
+};
+
+struct acpi_device_wakeup {
+ acpi_handle gpe_device;
+ acpi_integer gpe_number;
+ acpi_integer sleep_state;
+ struct acpi_handle_list resources;
+ struct acpi_device_wakeup_state state;
+ struct acpi_device_wakeup_flags flags;
+};
+
+/* Device */
+
+struct acpi_device {
+ acpi_handle handle;
+ struct acpi_device *parent;
+ struct list_head children;
+ struct list_head node;
+ struct list_head wakeup_list;
+ struct list_head g_list;
+ struct acpi_device_status status;
+ struct acpi_device_flags flags;
+ struct acpi_device_pnp pnp;
+ struct acpi_device_power power;
+ struct acpi_device_wakeup wakeup;
+ struct acpi_device_perf performance;
+ struct acpi_device_dir dir;
+ struct acpi_device_ops ops;
+ struct acpi_driver *driver;
+ void *driver_data;
+ struct kobject kobj;
+ struct device dev;
+};
+
+#define acpi_driver_data(d) ((d)->driver_data)
+
+/*
+ * Events
+ * ------
+ */
+
+struct acpi_bus_event {
+ struct list_head node;
+ acpi_device_class device_class;
+ acpi_bus_id bus_id;
+ u32 type;
+ u32 data;
+};
+
+extern struct subsystem acpi_subsys;
+
+/*
+ * External Functions
+ */
+
+int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
+void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context);
+int acpi_bus_get_status(struct acpi_device *device);
+int acpi_bus_get_power(acpi_handle handle, int *state);
+int acpi_bus_set_power(acpi_handle handle, int state);
+int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data);
+int acpi_bus_receive_event(struct acpi_bus_event *event);
+int acpi_bus_register_driver(struct acpi_driver *driver);
+void acpi_bus_unregister_driver(struct acpi_driver *driver);
+int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent,
+ acpi_handle handle, int type);
+int acpi_bus_trim(struct acpi_device *start, int rmdevice);
+int acpi_bus_start(struct acpi_device *device);
+acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd);
+int acpi_match_ids(struct acpi_device *device, char *ids);
+int acpi_create_dir(struct acpi_device *);
+void acpi_remove_dir(struct acpi_device *);
+
+/*
+ * Bind physical devices with ACPI devices
+ */
+#include <linux/device.h>
+struct acpi_bus_type {
+ struct list_head list;
+ struct bus_type *bus;
+ /* For general devices under the bus */
+ int (*find_device) (struct device *, acpi_handle *);
+ /* For bridges, such as PCI root bridge, IDE controller */
+ int (*find_bridge) (struct device *, acpi_handle *);
+};
+int register_acpi_bus_type(struct acpi_bus_type *);
+int unregister_acpi_bus_type(struct acpi_bus_type *);
+struct device *acpi_get_physical_device(acpi_handle);
+/* helper */
+acpi_handle acpi_get_child(acpi_handle, acpi_integer);
+acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
+#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->firmware_data))
+
+#endif /* CONFIG_ACPI */
+
+#endif /*__ACPI_BUS_H__*/
