include/acpi/acpiosxf.h

   1 /******************************************************************************
   2  *
   3  * Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL). These
   4  *                    interfaces must be implemented by OSL to interface the
   5  *                    ACPI components to the host operating system.
   6  *
   7  *****************************************************************************/
   8
   9 /*
  10  * Copyright (C) 2000 - 2012, Intel Corp.
  11  * All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions, and the following disclaimer,
  18  *    without modification.
  19  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  20  *    substantially similar to the "NO WARRANTY" disclaimer below
  21  *    ("Disclaimer") and any redistribution must be conditioned upon
  22  *    including a substantially similar Disclaimer requirement for further
  23  *    binary redistribution.
  24  * 3. Neither the names of the above-listed copyright holders nor the names
  25  *    of any contributors may be used to endorse or promote products derived
  26  *    from this software without specific prior written permission.
  27  *
  28  * Alternatively, this software may be distributed under the terms of the
  29  * GNU General Public License ("GPL") version 2 as published by the Free
  30  * Software Foundation.
  31  *
  32  * NO WARRANTY
  33  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  34  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  35  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  36  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  37  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  41  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  42  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  43  * POSSIBILITY OF SUCH DAMAGES.
  44  */
  45
  46 #ifndef __ACPIOSXF_H__
  47 #define __ACPIOSXF_H__
  48
  49 #include <acpi/platform/acenv.h>
  50 #include <acpi/actypes.h>
  51
  52 /* Types for acpi_os_execute */
  53
  54 typedef enum {
  55         OSL_GLOBAL_LOCK_HANDLER,
  56         OSL_NOTIFY_HANDLER,
  57         OSL_GPE_HANDLER,
  58         OSL_DEBUGGER_THREAD,
  59         OSL_EC_POLL_HANDLER,
  60         OSL_EC_BURST_HANDLER
  61 } acpi_execute_type;
  62
  63 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
  64 #define ACPI_MUTEX_SEM              1
  65
  66 /* Functions for acpi_os_signal */
  67
  68 #define ACPI_SIGNAL_FATAL           0
  69 #define ACPI_SIGNAL_BREAKPOINT      1
  70
  71 struct acpi_signal_fatal_info {
  72         u32 type;
  73         u32 code;
  74         u32 argument;
  75 };
  76
  77 /*
  78  * OSL Initialization and shutdown primitives
  79  */
  80 acpi_status __initdata acpi_os_initialize(void);
  81
  82 acpi_status acpi_os_terminate(void);
  83
  84 /*
  85  * ACPI Table interfaces
  86  */
  87 acpi_physical_address acpi_os_get_root_pointer(void);
  88
  89 acpi_status
  90 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
  91                             acpi_string * new_val);
  92
  93 acpi_status
  94 acpi_os_table_override(struct acpi_table_header *existing_table,
  95                        struct acpi_table_header **new_table);
  96
  97 acpi_status
  98 acpi_os_physical_table_override(struct acpi_table_header *existing_table,
  99                                 acpi_physical_address * new_address,
 100                                 u32 *new_table_length);
 101
 102 /*
 103  * Spinlock primitives
 104  */
 105
 106 #ifndef acpi_os_create_lock
 107 acpi_status
 108 acpi_os_create_lock(acpi_spinlock *out_handle);
 109 #endif
 110
 111 void acpi_os_delete_lock(acpi_spinlock handle);
 112
 113 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
 114
 115 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
 116
 117 /*
 118  * Semaphore primitives
 119  */
 120 acpi_status
 121 acpi_os_create_semaphore(u32 max_units,
 122                          u32 initial_units, acpi_semaphore * out_handle);
 123
 124 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
 125
 126 acpi_status
 127 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
 128
 129 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
 130
 131 /*
 132  * Mutex primitives. May be configured to use semaphores instead via
 133  * ACPI_MUTEX_TYPE (see platform/acenv.h)
 134  */
 135 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
 136
 137 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
 138
 139 void acpi_os_delete_mutex(acpi_mutex handle);
 140
 141 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
 142
 143 void acpi_os_release_mutex(acpi_mutex handle);
 144 #endif
 145
 146 /*
 147  * Memory allocation and mapping
 148  */
 149 void *acpi_os_allocate(acpi_size size);
 150
 151 void __iomem *acpi_os_map_memory(acpi_physical_address where,
 152                                 acpi_size length);
 153
 154 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
 155 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
 156
 157 #ifdef ACPI_FUTURE_USAGE
 158 acpi_status
 159 acpi_os_get_physical_address(void *logical_address,
 160                              acpi_physical_address * physical_address);
 161 #endif
 162
 163 /*
 164  * Memory/Object Cache
 165  */
 166 acpi_status
 167 acpi_os_create_cache(char *cache_name,
 168                      u16 object_size,
 169                      u16 max_depth, acpi_cache_t ** return_cache);
 170
 171 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
 172
 173 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
 174
 175 void *acpi_os_acquire_object(acpi_cache_t * cache);
 176
 177 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
 178
 179 /*
 180  * Interrupt handlers
 181  */
 182 acpi_status
 183 acpi_os_install_interrupt_handler(u32 gsi,
 184                                   acpi_osd_handler service_routine,
 185                                   void *context);
 186
 187 acpi_status
 188 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
 189
 190 void acpi_os_gpe_count(u32 gpe_number);
 191 void acpi_os_fixed_event_count(u32 fixed_event_number);
 192
 193 /*
 194  * Threads and Scheduling
 195  */
 196 acpi_thread_id acpi_os_get_thread_id(void);
 197
 198 acpi_status
 199 acpi_os_execute(acpi_execute_type type,
 200                 acpi_osd_exec_callback function, void *context);
 201
 202 acpi_status
 203 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
 204
 205 void acpi_os_wait_events_complete(void);
 206
 207 void acpi_os_sleep(u64 milliseconds);
 208
 209 void acpi_os_stall(u32 microseconds);
 210
 211 /*
 212  * Platform and hardware-independent I/O interfaces
 213  */
 214 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
 215
 216 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
 217
 218 /*
 219  * Platform and hardware-independent physical memory interfaces
 220  */
 221 acpi_status
 222 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
 223
 224 acpi_status
 225 acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
 226
 227 /*
 228  * Platform and hardware-independent PCI configuration space access
 229  * Note: Can't use "Register" as a parameter, changed to "Reg" --
 230  * certain compilers complain.
 231  */
 232 acpi_status
 233 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
 234                                u32 reg, u64 *value, u32 width);
 235
 236 acpi_status
 237 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
 238                                 u32 reg, u64 value, u32 width);
 239
 240 /*
 241  * Miscellaneous
 242  */
 243 u64 acpi_os_get_timer(void);
 244
 245 acpi_status acpi_os_signal(u32 function, void *info);
 246
 247 /*
 248  * Debug print routines
 249  */
 250 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
 251
 252 void acpi_os_vprintf(const char *format, va_list args);
 253
 254 void acpi_os_redirect_output(void *destination);
 255
 256 #ifdef ACPI_FUTURE_USAGE
 257 /*
 258  * Debug input
 259  */
 260 u32 acpi_os_get_line(char *buffer);
 261 #endif
 262
 263 /*
 264  * Directory manipulation
 265  */
 266 void *acpi_os_open_directory(char *pathname,
 267                              char *wildcard_spec, char requested_file_type);
 268
 269 /* requeste_file_type values */
 270
 271 #define REQUEST_FILE_ONLY                   0
 272 #define REQUEST_DIR_ONLY                    1
 273
 274 char *acpi_os_get_next_filename(void *dir_handle);
 275
 276 void acpi_os_close_directory(void *dir_handle);
 277
 278 #endif                          /* __ACPIOSXF_H__ */