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 - 2011, Intel Corp.
  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 /* Types for acpi_os_execute */
  54
  55 typedef enum {
  56         OSL_GLOBAL_LOCK_HANDLER,
  57         OSL_NOTIFY_HANDLER,
  58         OSL_GPE_HANDLER,
  59         OSL_DEBUGGER_THREAD,
  60         OSL_EC_POLL_HANDLER,
  61         OSL_EC_BURST_HANDLER
  62 } acpi_execute_type;
  63
  64 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
  65 #define ACPI_MUTEX_SEM              1
  66
  67 /* Functions for acpi_os_signal */
  68
  69 #define ACPI_SIGNAL_FATAL           0
  70 #define ACPI_SIGNAL_BREAKPOINT      1
  71
  72 struct acpi_signal_fatal_info {
  73         u32 type;
  74         u32 code;
  75         u32 argument;
  76 };
  77
  78 /*
  79  * OSL Initialization and shutdown primitives
  80  */
  81 acpi_status __initdata acpi_os_initialize(void);
  82
  83 acpi_status acpi_os_terminate(void);
  84
  85 /*
  86  * ACPI Table interfaces
  87  */
  88 acpi_physical_address acpi_os_get_root_pointer(void);
  89
  90 acpi_status
  91 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
  92                             acpi_string * new_val);
  93
  94 acpi_status
  95 acpi_os_table_override(struct acpi_table_header *existing_table,
  96                        struct acpi_table_header **new_table);
  97
  98 acpi_status
  99 acpi_os_physical_table_override(struct acpi_table_header *existing_table,
 100                                 acpi_physical_address * new_address,
 101                                 u32 *new_table_length);
 102
 103 /*
 104  * Spinlock primitives
 105  */
 106
 107 #ifndef acpi_os_create_lock
 108 acpi_status
 109 acpi_os_create_lock(acpi_spinlock *out_handle);
 110 #endif
 111
 112 void acpi_os_delete_lock(acpi_spinlock handle);
 113
 114 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
 115
 116 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
 117
 118 /*
 119  * Semaphore primitives
 120  */
 121 acpi_status
 122 acpi_os_create_semaphore(u32 max_units,
 123                          u32 initial_units, acpi_semaphore * out_handle);
 124
 125 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
 126
 127 acpi_status
 128 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
 129
 130 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
 131
 132 /*
 133  * Mutex primitives. May be configured to use semaphores instead via
 134  * ACPI_MUTEX_TYPE (see platform/acenv.h)
 135  */
 136 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
 137
 138 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
 139
 140 void acpi_os_delete_mutex(acpi_mutex handle);
 141
 142 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
 143
 144 void acpi_os_release_mutex(acpi_mutex handle);
 145 #endif
 146
 147 /*
 148  * Memory allocation and mapping
 149  */
 150 void *acpi_os_allocate(acpi_size size);
 151
 152 void __iomem *acpi_os_map_memory(acpi_physical_address where,
 153                                 acpi_size length);
 154
 155 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
 156 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
 157
 158 #ifdef ACPI_FUTURE_USAGE
 159 acpi_status
 160 acpi_os_get_physical_address(void *logical_address,
 161                              acpi_physical_address * physical_address);
 162 #endif
 163
 164 /*
 165  * Memory/Object Cache
 166  */
 167 acpi_status
 168 acpi_os_create_cache(char *cache_name,
 169                      u16 object_size,
 170                      u16 max_depth, acpi_cache_t ** return_cache);
 171
 172 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
 173
 174 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
 175
 176 void *acpi_os_acquire_object(acpi_cache_t * cache);
 177
 178 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
 179
 180 /*
 181  * Interrupt handlers
 182  */
 183 acpi_status
 184 acpi_os_install_interrupt_handler(u32 gsi,
 185                                   acpi_osd_handler service_routine,
 186                                   void *context);
 187
 188 acpi_status
 189 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
 190
 191 void acpi_os_gpe_count(u32 gpe_number);
 192 void acpi_os_fixed_event_count(u32 fixed_event_number);
 193
 194 /*
 195  * Threads and Scheduling
 196  */
 197 extern struct workqueue_struct *kacpi_hotplug_wq;
 198
 199 acpi_thread_id acpi_os_get_thread_id(void);
 200
 201 acpi_status
 202 acpi_os_execute(acpi_execute_type type,
 203                 acpi_osd_exec_callback function, void *context);
 204
 205 acpi_status
 206 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
 207
 208 void acpi_os_wait_events_complete(void *context);
 209
 210 void acpi_os_sleep(u64 milliseconds);
 211
 212 void acpi_os_stall(u32 microseconds);
 213
 214 /*
 215  * Platform and hardware-independent I/O interfaces
 216  */
 217 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
 218
 219 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
 220
 221 /*
 222  * Platform and hardware-independent physical memory interfaces
 223  */
 224 acpi_status
 225 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
 226
 227 acpi_status
 228 acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
 229
 230 /*
 231  * Platform and hardware-independent PCI configuration space access
 232  * Note: Can't use "Register" as a parameter, changed to "Reg" --
 233  * certain compilers complain.
 234  */
 235 acpi_status
 236 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
 237                                u32 reg, u64 *value, u32 width);
 238
 239 acpi_status
 240 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
 241                                 u32 reg, u64 value, u32 width);
 242
 243 /*
 244  * Miscellaneous
 245  */
 246 u64 acpi_os_get_timer(void);
 247
 248 acpi_status acpi_os_signal(u32 function, void *info);
 249
 250 /*
 251  * Debug print routines
 252  */
 253 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
 254
 255 void acpi_os_vprintf(const char *format, va_list args);
 256
 257 void acpi_os_redirect_output(void *destination);
 258
 259 #ifdef ACPI_FUTURE_USAGE
 260 /*
 261  * Debug input
 262  */
 263 u32 acpi_os_get_line(char *buffer);
 264 #endif
 265
 266 /*
 267  * Directory manipulation
 268  */
 269 void *acpi_os_open_directory(char *pathname,
 270                              char *wildcard_spec, char requested_file_type);
 271
 272 /* requeste_file_type values */
 273
 274 #define REQUEST_FILE_ONLY                   0
 275 #define REQUEST_DIR_ONLY                    1
 276
 277 char *acpi_os_get_next_filename(void *dir_handle);
 278
 279 void acpi_os_close_directory(void *dir_handle);
 280
 281 #endif                          /* __ACPIOSXF_H__ */