include/acpi/acpiosxf.h

   1
   2 /******************************************************************************
   3  *
   4  * Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL).  These
   5  *                    interfaces must be implemented by OSL to interface the
   6  *                    ACPI components to the host operating system.
   7  *
   8  *****************************************************************************/
   9
  10 /*
  11  * Copyright (C) 2000 - 2006, R. Byron Moore
  12  * All rights reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions, and the following disclaimer,
  19  *    without modification.
  20  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  21  *    substantially similar to the "NO WARRANTY" disclaimer below
  22  *    ("Disclaimer") and any redistribution must be conditioned upon
  23  *    including a substantially similar Disclaimer requirement for further
  24  *    binary redistribution.
  25  * 3. Neither the names of the above-listed copyright holders nor the names
  26  *    of any contributors may be used to endorse or promote products derived
  27  *    from this software without specific prior written permission.
  28  *
  29  * Alternatively, this software may be distributed under the terms of the
  30  * GNU General Public License ("GPL") version 2 as published by the Free
  31  * Software Foundation.
  32  *
  33  * NO WARRANTY
  34  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  35  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  36  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  37  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  38  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  39  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  40  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  41  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  42  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  43  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  44  * POSSIBILITY OF SUCH DAMAGES.
  45  */
  46
  47 #ifndef __ACPIOSXF_H__
  48 #define __ACPIOSXF_H__
  49
  50 #include "platform/acenv.h"
  51 #include "actypes.h"
  52
  53 /* Priorities for acpi_os_queue_for_execution */
  54
  55 #define OSD_PRIORITY_GPE            1
  56 #define OSD_PRIORITY_HIGH           2
  57 #define OSD_PRIORITY_MED            3
  58 #define OSD_PRIORITY_LO             4
  59
  60 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
  61 #define ACPI_MUTEX_SEM              1
  62
  63 /* Functions for acpi_os_signal */
  64
  65 #define ACPI_SIGNAL_FATAL           0
  66 #define ACPI_SIGNAL_BREAKPOINT      1
  67
  68 struct acpi_signal_fatal_info {
  69         u32 type;
  70         u32 code;
  71         u32 argument;
  72 };
  73
  74 /*
  75  * OSL Initialization and shutdown primitives
  76  */
  77 acpi_status acpi_os_initialize(void);
  78
  79 acpi_status acpi_os_terminate(void);
  80
  81 /*
  82  * ACPI Table interfaces
  83  */
  84 acpi_status acpi_os_get_root_pointer(u32 flags, struct acpi_pointer *address);
  85
  86 acpi_status
  87 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
  88                             acpi_string * new_val);
  89
  90 acpi_status
  91 acpi_os_table_override(struct acpi_table_header *existing_table,
  92                        struct acpi_table_header **new_table);
  93
  94 /*
  95  * Synchronization primitives
  96  */
  97 acpi_status
  98 acpi_os_create_semaphore(u32 max_units,
  99                          u32 initial_units, acpi_handle * out_handle);
 100
 101 acpi_status acpi_os_delete_semaphore(acpi_handle handle);
 102
 103 acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout);
 104
 105 acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units);
 106
 107 acpi_status acpi_os_create_lock(acpi_handle * out_handle);
 108
 109 void acpi_os_delete_lock(acpi_handle handle);
 110
 111 acpi_cpu_flags acpi_os_acquire_lock(acpi_handle handle);
 112
 113 void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags);
 114
 115 /*
 116  * Memory allocation and mapping
 117  */
 118 void *acpi_os_allocate(acpi_size size);
 119
 120 void acpi_os_free(void *memory);
 121
 122 acpi_status
 123 acpi_os_map_memory(acpi_physical_address physical_address,
 124                    acpi_size size, void __iomem ** logical_address);
 125
 126 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
 127
 128 #ifdef ACPI_FUTURE_USAGE
 129 acpi_status
 130 acpi_os_get_physical_address(void *logical_address,
 131                              acpi_physical_address * physical_address);
 132 #endif
 133
 134 /*
 135  * Memory/Object Cache
 136  */
 137 acpi_status
 138 acpi_os_create_cache(char *cache_name,
 139                      u16 object_size,
 140                      u16 max_depth, acpi_cache_t ** return_cache);
 141
 142 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
 143
 144 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
 145
 146 void *acpi_os_acquire_object(acpi_cache_t * cache);
 147
 148 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
 149
 150 /*
 151  * Interrupt handlers
 152  */
 153 acpi_status
 154 acpi_os_install_interrupt_handler(u32 gsi,
 155                                   acpi_osd_handler service_routine,
 156                                   void *context);
 157
 158 acpi_status
 159 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
 160
 161 /*
 162  * Threads and Scheduling
 163  */
 164 acpi_thread_id acpi_os_get_thread_id(void);
 165
 166 acpi_status
 167 acpi_os_queue_for_execution(u32 priority,
 168                             acpi_osd_exec_callback function, void *context);
 169
 170 void acpi_os_wait_events_complete(void *context);
 171
 172 void acpi_os_sleep(acpi_integer milliseconds);
 173
 174 void acpi_os_stall(u32 microseconds);
 175
 176 /*
 177  * Platform and hardware-independent I/O interfaces
 178  */
 179 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
 180
 181 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
 182
 183 /*
 184  * Platform and hardware-independent physical memory interfaces
 185  */
 186 acpi_status
 187 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
 188
 189 acpi_status
 190 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
 191
 192 /*
 193  * Platform and hardware-independent PCI configuration space access
 194  * Note: Can't use "Register" as a parameter, changed to "Reg" --
 195  * certain compilers complain.
 196  */
 197 acpi_status
 198 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
 199                                u32 reg, void *value, u32 width);
 200
 201 acpi_status
 202 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
 203                                 u32 reg, acpi_integer value, u32 width);
 204
 205 /*
 206  * Interim function needed for PCI IRQ routing
 207  */
 208 void
 209 acpi_os_derive_pci_id(acpi_handle rhandle,
 210                       acpi_handle chandle, struct acpi_pci_id **pci_id);
 211
 212 /*
 213  * Miscellaneous
 214  */
 215 u8 acpi_os_readable(void *pointer, acpi_size length);
 216
 217 #ifdef ACPI_FUTURE_USAGE
 218 u8 acpi_os_writable(void *pointer, acpi_size length);
 219 #endif
 220
 221 u64 acpi_os_get_timer(void);
 222
 223 acpi_status acpi_os_signal(u32 function, void *info);
 224
 225 /*
 226  * Debug print routines
 227  */
 228 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
 229
 230 void acpi_os_vprintf(const char *format, va_list args);
 231
 232 void acpi_os_redirect_output(void *destination);
 233
 234 #ifdef ACPI_FUTURE_USAGE
 235 /*
 236  * Debug input
 237  */
 238 u32 acpi_os_get_line(char *buffer);
 239 #endif
 240
 241 /*
 242  * Directory manipulation
 243  */
 244 void *acpi_os_open_directory(char *pathname,
 245                              char *wildcard_spec, char requested_file_type);
 246
 247 /* requeste_file_type values */
 248
 249 #define REQUEST_FILE_ONLY                   0
 250 #define REQUEST_DIR_ONLY                    1
 251
 252 char *acpi_os_get_next_filename(void *dir_handle);
 253
 254 void acpi_os_close_directory(void *dir_handle);
 255
 256 /*
 257  * Debug
 258  */
 259 void
 260 acpi_os_dbg_assert(void *failed_assertion,
 261                    void *file_name, u32 line_number, char *message);
 262
 263 #endif                          /* __ACPIOSXF_H__ */