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 - 2007, 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 /* 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 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 /* 99 * Spinlock primitives 100 */ 101 acpi_status acpi_os_create_lock(acpi_spinlock * out_handle); 102 103 void acpi_os_delete_lock(acpi_spinlock handle); 104 105 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle); 106 107 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags); 108 109 /* 110 * Semaphore primitives 111 */ 112 acpi_status 113 acpi_os_create_semaphore(u32 max_units, 114 u32 initial_units, acpi_semaphore * out_handle); 115 116 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle); 117 118 acpi_status 119 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout); 120 121 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units); 122 123 /* 124 * Mutex primitives 125 */ 126 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle); 127 128 void acpi_os_delete_mutex(acpi_mutex handle); 129 130 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout); 131 132 void acpi_os_release_mutex(acpi_mutex handle); 133 134 /* Temporary macros for Mutex* interfaces, map to existing semaphore xfaces */ 135 136 #define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle) 137 #define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle) 138 #define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time) 139 #define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1) 140 141 /* 142 * Memory allocation and mapping 143 */ 144 void *acpi_os_allocate(acpi_size size); 145 146 void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_native_uint length); 147 148 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size); 149 150 #ifdef ACPI_FUTURE_USAGE 151 acpi_status 152 acpi_os_get_physical_address(void *logical_address, 153 acpi_physical_address * physical_address); 154 #endif 155 156 /* 157 * Memory/Object Cache 158 */ 159 acpi_status 160 acpi_os_create_cache(char *cache_name, 161 u16 object_size, 162 u16 max_depth, acpi_cache_t ** return_cache); 163 164 acpi_status acpi_os_delete_cache(acpi_cache_t * cache); 165 166 acpi_status acpi_os_purge_cache(acpi_cache_t * cache); 167 168 void *acpi_os_acquire_object(acpi_cache_t * cache); 169 170 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object); 171 172 /* 173 * Interrupt handlers 174 */ 175 acpi_status 176 acpi_os_install_interrupt_handler(u32 gsi, 177 acpi_osd_handler service_routine, 178 void *context); 179 180 acpi_status 181 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine); 182 183 /* 184 * Threads and Scheduling 185 */ 186 acpi_thread_id acpi_os_get_thread_id(void); 187 188 acpi_status 189 acpi_os_execute(acpi_execute_type type, 190 acpi_osd_exec_callback function, void *context); 191 192 void acpi_os_wait_events_complete(void *context); 193 194 void acpi_os_sleep(acpi_integer milliseconds); 195 196 void acpi_os_stall(u32 microseconds); 197 198 /* 199 * Platform and hardware-independent I/O interfaces 200 */ 201 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width); 202 203 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width); 204 205 /* 206 * Platform and hardware-independent physical memory interfaces 207 */ 208 acpi_status 209 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width); 210 211 acpi_status 212 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width); 213 214 /* 215 * Platform and hardware-independent PCI configuration space access 216 * Note: Can't use "Register" as a parameter, changed to "Reg" -- 217 * certain compilers complain. 218 */ 219 acpi_status 220 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id, 221 u32 reg, void *value, u32 width); 222 223 acpi_status 224 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id, 225 u32 reg, acpi_integer value, u32 width); 226 227 /* 228 * Interim function needed for PCI IRQ routing 229 */ 230 void 231 acpi_os_derive_pci_id(acpi_handle rhandle, 232 acpi_handle chandle, struct acpi_pci_id **pci_id); 233 234 /* 235 * Miscellaneous 236 */ 237 acpi_status acpi_os_validate_interface(char *interface); 238 239 acpi_status 240 acpi_os_validate_address(u8 space_id, 241 acpi_physical_address address, acpi_size length); 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__ */ 279