| 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 - 2013, 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 __init 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 | #ifndef acpi_os_create_lock |
| 106 | acpi_status acpi_os_create_lock(acpi_spinlock * out_handle); |
| 107 | #endif |
| 108 | |
| 109 | void acpi_os_delete_lock(acpi_spinlock handle); |
| 110 | |
| 111 | acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle); |
| 112 | |
| 113 | void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags); |
| 114 | |
| 115 | /* |
| 116 | * Semaphore primitives |
| 117 | */ |
| 118 | acpi_status |
| 119 | acpi_os_create_semaphore(u32 max_units, |
| 120 | u32 initial_units, acpi_semaphore * out_handle); |
| 121 | |
| 122 | acpi_status acpi_os_delete_semaphore(acpi_semaphore handle); |
| 123 | |
| 124 | acpi_status |
| 125 | acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout); |
| 126 | |
| 127 | acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units); |
| 128 | |
| 129 | /* |
| 130 | * Mutex primitives. May be configured to use semaphores instead via |
| 131 | * ACPI_MUTEX_TYPE (see platform/acenv.h) |
| 132 | */ |
| 133 | #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE) |
| 134 | |
| 135 | acpi_status acpi_os_create_mutex(acpi_mutex * out_handle); |
| 136 | |
| 137 | void acpi_os_delete_mutex(acpi_mutex handle); |
| 138 | |
| 139 | acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout); |
| 140 | |
| 141 | void acpi_os_release_mutex(acpi_mutex handle); |
| 142 | #endif |
| 143 | |
| 144 | /* |
| 145 | * Memory allocation and mapping |
| 146 | */ |
| 147 | void *acpi_os_allocate(acpi_size size); |
| 148 | |
| 149 | void acpi_os_free(void *memory); |
| 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 interrupt_number, |
| 184 | acpi_osd_handler service_routine, |
| 185 | void *context); |
| 186 | |
| 187 | acpi_status |
| 188 | acpi_os_remove_interrupt_handler(u32 interrupt_number, |
| 189 | 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 | acpi_thread_id acpi_os_get_thread_id(void); |
| 198 | |
| 199 | acpi_status |
| 200 | acpi_os_execute(acpi_execute_type type, |
| 201 | acpi_osd_exec_callback function, void *context); |
| 202 | |
| 203 | acpi_status |
| 204 | acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context); |
| 205 | |
| 206 | void acpi_os_wait_events_complete(void); |
| 207 | |
| 208 | void acpi_os_sleep(u64 milliseconds); |
| 209 | |
| 210 | void acpi_os_stall(u32 microseconds); |
| 211 | |
| 212 | /* |
| 213 | * Platform and hardware-independent I/O interfaces |
| 214 | */ |
| 215 | acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width); |
| 216 | |
| 217 | acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width); |
| 218 | |
| 219 | /* |
| 220 | * Platform and hardware-independent physical memory interfaces |
| 221 | */ |
| 222 | acpi_status |
| 223 | acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width); |
| 224 | |
| 225 | acpi_status |
| 226 | acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width); |
| 227 | |
| 228 | /* |
| 229 | * Platform and hardware-independent PCI configuration space access |
| 230 | * Note: Can't use "Register" as a parameter, changed to "Reg" -- |
| 231 | * certain compilers complain. |
| 232 | */ |
| 233 | acpi_status |
| 234 | acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id, |
| 235 | u32 reg, u64 *value, u32 width); |
| 236 | |
| 237 | acpi_status |
| 238 | acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id, |
| 239 | u32 reg, u64 value, u32 width); |
| 240 | |
| 241 | /* |
| 242 | * Miscellaneous |
| 243 | */ |
| 244 | u64 acpi_os_get_timer(void); |
| 245 | |
| 246 | acpi_status acpi_os_signal(u32 function, void *info); |
| 247 | |
| 248 | /* |
| 249 | * Debug print routines |
| 250 | */ |
| 251 | void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...); |
| 252 | |
| 253 | void acpi_os_vprintf(const char *format, va_list args); |
| 254 | |
| 255 | void acpi_os_redirect_output(void *destination); |
| 256 | |
| 257 | #ifdef ACPI_FUTURE_USAGE |
| 258 | /* |
| 259 | * Debug input |
| 260 | */ |
| 261 | u32 acpi_os_get_line(char *buffer); |
| 262 | #endif |
| 263 | |
| 264 | /* |
| 265 | * Directory manipulation |
| 266 | */ |
| 267 | void *acpi_os_open_directory(char *pathname, |
| 268 | char *wildcard_spec, char requested_file_type); |
| 269 | |
| 270 | /* requeste_file_type values */ |
| 271 | |
| 272 | #define REQUEST_FILE_ONLY 0 |
| 273 | #define REQUEST_DIR_ONLY 1 |
| 274 | |
| 275 | char *acpi_os_get_next_filename(void *dir_handle); |
| 276 | |
| 277 | void acpi_os_close_directory(void *dir_handle); |
| 278 | |
| 279 | #endif /* __ACPIOSXF_H__ */ |