diff options
author | Len Brown <len.brown@intel.com> | 2009-01-09 00:13:17 -0500 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2009-01-09 03:30:47 -0500 |
commit | 95b482a8d31116f3f5c2a5089569393234d06385 (patch) | |
tree | f32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/acpica/exregion.c | |
parent | 6620e0c49f577454b772fb381543d60ae53eb885 (diff) |
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/exregion.c')
-rw-r--r-- | drivers/acpi/acpica/exregion.c | 499 |
1 files changed, 499 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c new file mode 100644 index 000000000000..ceb269e45aba --- /dev/null +++ b/drivers/acpi/acpica/exregion.c | |||
@@ -0,0 +1,499 @@ | |||
1 | |||
2 | /****************************************************************************** | ||
3 | * | ||
4 | * Module Name: exregion - ACPI default op_region (address space) handlers | ||
5 | * | ||
6 | *****************************************************************************/ | ||
7 | |||
8 | /* | ||
9 | * Copyright (C) 2000 - 2008, Intel Corp. | ||
10 | * All rights reserved. | ||
11 | * | ||
12 | * Redistribution and use in source and binary forms, with or without | ||
13 | * modification, are permitted provided that the following conditions | ||
14 | * are met: | ||
15 | * 1. Redistributions of source code must retain the above copyright | ||
16 | * notice, this list of conditions, and the following disclaimer, | ||
17 | * without modification. | ||
18 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
19 | * substantially similar to the "NO WARRANTY" disclaimer below | ||
20 | * ("Disclaimer") and any redistribution must be conditioned upon | ||
21 | * including a substantially similar Disclaimer requirement for further | ||
22 | * binary redistribution. | ||
23 | * 3. Neither the names of the above-listed copyright holders nor the names | ||
24 | * of any contributors may be used to endorse or promote products derived | ||
25 | * from this software without specific prior written permission. | ||
26 | * | ||
27 | * Alternatively, this software may be distributed under the terms of the | ||
28 | * GNU General Public License ("GPL") version 2 as published by the Free | ||
29 | * Software Foundation. | ||
30 | * | ||
31 | * NO WARRANTY | ||
32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
35 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
36 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
37 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
38 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
41 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
42 | * POSSIBILITY OF SUCH DAMAGES. | ||
43 | */ | ||
44 | |||
45 | #include <acpi/acpi.h> | ||
46 | #include <acpi/accommon.h> | ||
47 | #include <acpi/acinterp.h> | ||
48 | |||
49 | #define _COMPONENT ACPI_EXECUTER | ||
50 | ACPI_MODULE_NAME("exregion") | ||
51 | |||
52 | /******************************************************************************* | ||
53 | * | ||
54 | * FUNCTION: acpi_ex_system_memory_space_handler | ||
55 | * | ||
56 | * PARAMETERS: Function - Read or Write operation | ||
57 | * Address - Where in the space to read or write | ||
58 | * bit_width - Field width in bits (8, 16, or 32) | ||
59 | * Value - Pointer to in or out value | ||
60 | * handler_context - Pointer to Handler's context | ||
61 | * region_context - Pointer to context specific to the | ||
62 | * accessed region | ||
63 | * | ||
64 | * RETURN: Status | ||
65 | * | ||
66 | * DESCRIPTION: Handler for the System Memory address space (Op Region) | ||
67 | * | ||
68 | ******************************************************************************/ | ||
69 | acpi_status | ||
70 | acpi_ex_system_memory_space_handler(u32 function, | ||
71 | acpi_physical_address address, | ||
72 | u32 bit_width, | ||
73 | acpi_integer * value, | ||
74 | void *handler_context, void *region_context) | ||
75 | { | ||
76 | acpi_status status = AE_OK; | ||
77 | void *logical_addr_ptr = NULL; | ||
78 | struct acpi_mem_space_context *mem_info = region_context; | ||
79 | u32 length; | ||
80 | acpi_size window_size; | ||
81 | #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED | ||
82 | u32 remainder; | ||
83 | #endif | ||
84 | |||
85 | ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); | ||
86 | |||
87 | /* Validate and translate the bit width */ | ||
88 | |||
89 | switch (bit_width) { | ||
90 | case 8: | ||
91 | length = 1; | ||
92 | break; | ||
93 | |||
94 | case 16: | ||
95 | length = 2; | ||
96 | break; | ||
97 | |||
98 | case 32: | ||
99 | length = 4; | ||
100 | break; | ||
101 | |||
102 | case 64: | ||
103 | length = 8; | ||
104 | break; | ||
105 | |||
106 | default: | ||
107 | ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", | ||
108 | bit_width)); | ||
109 | return_ACPI_STATUS(AE_AML_OPERAND_VALUE); | ||
110 | } | ||
111 | |||
112 | #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED | ||
113 | /* | ||
114 | * Hardware does not support non-aligned data transfers, we must verify | ||
115 | * the request. | ||
116 | */ | ||
117 | (void)acpi_ut_short_divide((acpi_integer) address, length, NULL, | ||
118 | &remainder); | ||
119 | if (remainder != 0) { | ||
120 | return_ACPI_STATUS(AE_AML_ALIGNMENT); | ||
121 | } | ||
122 | #endif | ||
123 | |||
124 | /* | ||
125 | * Does the request fit into the cached memory mapping? | ||
126 | * Is 1) Address below the current mapping? OR | ||
127 | * 2) Address beyond the current mapping? | ||
128 | */ | ||
129 | if ((address < mem_info->mapped_physical_address) || | ||
130 | (((acpi_integer) address + length) > ((acpi_integer) | ||
131 | mem_info-> | ||
132 | mapped_physical_address + | ||
133 | mem_info->mapped_length))) { | ||
134 | /* | ||
135 | * The request cannot be resolved by the current memory mapping; | ||
136 | * Delete the existing mapping and create a new one. | ||
137 | */ | ||
138 | if (mem_info->mapped_length) { | ||
139 | |||
140 | /* Valid mapping, delete it */ | ||
141 | |||
142 | acpi_os_unmap_memory(mem_info->mapped_logical_address, | ||
143 | mem_info->mapped_length); | ||
144 | } | ||
145 | |||
146 | /* | ||
147 | * Don't attempt to map memory beyond the end of the region, and | ||
148 | * constrain the maximum mapping size to something reasonable. | ||
149 | */ | ||
150 | window_size = (acpi_size) | ||
151 | ((mem_info->address + mem_info->length) - address); | ||
152 | |||
153 | if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) { | ||
154 | window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE; | ||
155 | } | ||
156 | |||
157 | /* Create a new mapping starting at the address given */ | ||
158 | |||
159 | mem_info->mapped_logical_address = | ||
160 | acpi_os_map_memory((acpi_physical_address) address, window_size); | ||
161 | if (!mem_info->mapped_logical_address) { | ||
162 | ACPI_ERROR((AE_INFO, | ||
163 | "Could not map memory at %8.8X%8.8X, size %X", | ||
164 | ACPI_FORMAT_NATIVE_UINT(address), | ||
165 | (u32) window_size)); | ||
166 | mem_info->mapped_length = 0; | ||
167 | return_ACPI_STATUS(AE_NO_MEMORY); | ||
168 | } | ||
169 | |||
170 | /* Save the physical address and mapping size */ | ||
171 | |||
172 | mem_info->mapped_physical_address = address; | ||
173 | mem_info->mapped_length = window_size; | ||
174 | } | ||
175 | |||
176 | /* | ||
177 | * Generate a logical pointer corresponding to the address we want to | ||
178 | * access | ||
179 | */ | ||
180 | logical_addr_ptr = mem_info->mapped_logical_address + | ||
181 | ((acpi_integer) address - | ||
182 | (acpi_integer) mem_info->mapped_physical_address); | ||
183 | |||
184 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | ||
185 | "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", | ||
186 | bit_width, function, | ||
187 | ACPI_FORMAT_NATIVE_UINT(address))); | ||
188 | |||
189 | /* | ||
190 | * Perform the memory read or write | ||
191 | * | ||
192 | * Note: For machines that do not support non-aligned transfers, the target | ||
193 | * address was checked for alignment above. We do not attempt to break the | ||
194 | * transfer up into smaller (byte-size) chunks because the AML specifically | ||
195 | * asked for a transfer width that the hardware may require. | ||
196 | */ | ||
197 | switch (function) { | ||
198 | case ACPI_READ: | ||
199 | |||
200 | *value = 0; | ||
201 | switch (bit_width) { | ||
202 | case 8: | ||
203 | *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); | ||
204 | break; | ||
205 | |||
206 | case 16: | ||
207 | *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); | ||
208 | break; | ||
209 | |||
210 | case 32: | ||
211 | *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); | ||
212 | break; | ||
213 | |||
214 | case 64: | ||
215 | *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); | ||
216 | break; | ||
217 | |||
218 | default: | ||
219 | /* bit_width was already validated */ | ||
220 | break; | ||
221 | } | ||
222 | break; | ||
223 | |||
224 | case ACPI_WRITE: | ||
225 | |||
226 | switch (bit_width) { | ||
227 | case 8: | ||
228 | ACPI_SET8(logical_addr_ptr) = (u8) * value; | ||
229 | break; | ||
230 | |||
231 | case 16: | ||
232 | ACPI_SET16(logical_addr_ptr) = (u16) * value; | ||
233 | break; | ||
234 | |||
235 | case 32: | ||
236 | ACPI_SET32(logical_addr_ptr) = (u32) * value; | ||
237 | break; | ||
238 | |||
239 | case 64: | ||
240 | ACPI_SET64(logical_addr_ptr) = (u64) * value; | ||
241 | break; | ||
242 | |||
243 | default: | ||
244 | /* bit_width was already validated */ | ||
245 | break; | ||
246 | } | ||
247 | break; | ||
248 | |||
249 | default: | ||
250 | status = AE_BAD_PARAMETER; | ||
251 | break; | ||
252 | } | ||
253 | |||
254 | return_ACPI_STATUS(status); | ||
255 | } | ||
256 | |||
257 | /******************************************************************************* | ||
258 | * | ||
259 | * FUNCTION: acpi_ex_system_io_space_handler | ||
260 | * | ||
261 | * PARAMETERS: Function - Read or Write operation | ||
262 | * Address - Where in the space to read or write | ||
263 | * bit_width - Field width in bits (8, 16, or 32) | ||
264 | * Value - Pointer to in or out value | ||
265 | * handler_context - Pointer to Handler's context | ||
266 | * region_context - Pointer to context specific to the | ||
267 | * accessed region | ||
268 | * | ||
269 | * RETURN: Status | ||
270 | * | ||
271 | * DESCRIPTION: Handler for the System IO address space (Op Region) | ||
272 | * | ||
273 | ******************************************************************************/ | ||
274 | |||
275 | acpi_status | ||
276 | acpi_ex_system_io_space_handler(u32 function, | ||
277 | acpi_physical_address address, | ||
278 | u32 bit_width, | ||
279 | acpi_integer * value, | ||
280 | void *handler_context, void *region_context) | ||
281 | { | ||
282 | acpi_status status = AE_OK; | ||
283 | u32 value32; | ||
284 | |||
285 | ACPI_FUNCTION_TRACE(ex_system_io_space_handler); | ||
286 | |||
287 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | ||
288 | "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", | ||
289 | bit_width, function, | ||
290 | ACPI_FORMAT_NATIVE_UINT(address))); | ||
291 | |||
292 | /* Decode the function parameter */ | ||
293 | |||
294 | switch (function) { | ||
295 | case ACPI_READ: | ||
296 | |||
297 | status = acpi_os_read_port((acpi_io_address) address, | ||
298 | &value32, bit_width); | ||
299 | *value = value32; | ||
300 | break; | ||
301 | |||
302 | case ACPI_WRITE: | ||
303 | |||
304 | status = acpi_os_write_port((acpi_io_address) address, | ||
305 | (u32) * value, bit_width); | ||
306 | break; | ||
307 | |||
308 | default: | ||
309 | status = AE_BAD_PARAMETER; | ||
310 | break; | ||
311 | } | ||
312 | |||
313 | return_ACPI_STATUS(status); | ||
314 | } | ||
315 | |||
316 | /******************************************************************************* | ||
317 | * | ||
318 | * FUNCTION: acpi_ex_pci_config_space_handler | ||
319 | * | ||
320 | * PARAMETERS: Function - Read or Write operation | ||
321 | * Address - Where in the space to read or write | ||
322 | * bit_width - Field width in bits (8, 16, or 32) | ||
323 | * Value - Pointer to in or out value | ||
324 | * handler_context - Pointer to Handler's context | ||
325 | * region_context - Pointer to context specific to the | ||
326 | * accessed region | ||
327 | * | ||
328 | * RETURN: Status | ||
329 | * | ||
330 | * DESCRIPTION: Handler for the PCI Config address space (Op Region) | ||
331 | * | ||
332 | ******************************************************************************/ | ||
333 | |||
334 | acpi_status | ||
335 | acpi_ex_pci_config_space_handler(u32 function, | ||
336 | acpi_physical_address address, | ||
337 | u32 bit_width, | ||
338 | acpi_integer * value, | ||
339 | void *handler_context, void *region_context) | ||
340 | { | ||
341 | acpi_status status = AE_OK; | ||
342 | struct acpi_pci_id *pci_id; | ||
343 | u16 pci_register; | ||
344 | u32 value32; | ||
345 | |||
346 | ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); | ||
347 | |||
348 | /* | ||
349 | * The arguments to acpi_os(Read|Write)pci_configuration are: | ||
350 | * | ||
351 | * pci_segment is the PCI bus segment range 0-31 | ||
352 | * pci_bus is the PCI bus number range 0-255 | ||
353 | * pci_device is the PCI device number range 0-31 | ||
354 | * pci_function is the PCI device function number | ||
355 | * pci_register is the Config space register range 0-255 bytes | ||
356 | * | ||
357 | * Value - input value for write, output address for read | ||
358 | * | ||
359 | */ | ||
360 | pci_id = (struct acpi_pci_id *)region_context; | ||
361 | pci_register = (u16) (u32) address; | ||
362 | |||
363 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | ||
364 | "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", | ||
365 | function, bit_width, pci_id->segment, pci_id->bus, | ||
366 | pci_id->device, pci_id->function, pci_register)); | ||
367 | |||
368 | switch (function) { | ||
369 | case ACPI_READ: | ||
370 | |||
371 | status = acpi_os_read_pci_configuration(pci_id, pci_register, | ||
372 | &value32, bit_width); | ||
373 | *value = value32; | ||
374 | break; | ||
375 | |||
376 | case ACPI_WRITE: | ||
377 | |||
378 | status = acpi_os_write_pci_configuration(pci_id, pci_register, | ||
379 | *value, bit_width); | ||
380 | break; | ||
381 | |||
382 | default: | ||
383 | |||
384 | status = AE_BAD_PARAMETER; | ||
385 | break; | ||
386 | } | ||
387 | |||
388 | return_ACPI_STATUS(status); | ||
389 | } | ||
390 | |||
391 | /******************************************************************************* | ||
392 | * | ||
393 | * FUNCTION: acpi_ex_cmos_space_handler | ||
394 | * | ||
395 | * PARAMETERS: Function - Read or Write operation | ||
396 | * Address - Where in the space to read or write | ||
397 | * bit_width - Field width in bits (8, 16, or 32) | ||
398 | * Value - Pointer to in or out value | ||
399 | * handler_context - Pointer to Handler's context | ||
400 | * region_context - Pointer to context specific to the | ||
401 | * accessed region | ||
402 | * | ||
403 | * RETURN: Status | ||
404 | * | ||
405 | * DESCRIPTION: Handler for the CMOS address space (Op Region) | ||
406 | * | ||
407 | ******************************************************************************/ | ||
408 | |||
409 | acpi_status | ||
410 | acpi_ex_cmos_space_handler(u32 function, | ||
411 | acpi_physical_address address, | ||
412 | u32 bit_width, | ||
413 | acpi_integer * value, | ||
414 | void *handler_context, void *region_context) | ||
415 | { | ||
416 | acpi_status status = AE_OK; | ||
417 | |||
418 | ACPI_FUNCTION_TRACE(ex_cmos_space_handler); | ||
419 | |||
420 | return_ACPI_STATUS(status); | ||
421 | } | ||
422 | |||
423 | /******************************************************************************* | ||
424 | * | ||
425 | * FUNCTION: acpi_ex_pci_bar_space_handler | ||
426 | * | ||
427 | * PARAMETERS: Function - Read or Write operation | ||
428 | * Address - Where in the space to read or write | ||
429 | * bit_width - Field width in bits (8, 16, or 32) | ||
430 | * Value - Pointer to in or out value | ||
431 | * handler_context - Pointer to Handler's context | ||
432 | * region_context - Pointer to context specific to the | ||
433 | * accessed region | ||
434 | * | ||
435 | * RETURN: Status | ||
436 | * | ||
437 | * DESCRIPTION: Handler for the PCI bar_target address space (Op Region) | ||
438 | * | ||
439 | ******************************************************************************/ | ||
440 | |||
441 | acpi_status | ||
442 | acpi_ex_pci_bar_space_handler(u32 function, | ||
443 | acpi_physical_address address, | ||
444 | u32 bit_width, | ||
445 | acpi_integer * value, | ||
446 | void *handler_context, void *region_context) | ||
447 | { | ||
448 | acpi_status status = AE_OK; | ||
449 | |||
450 | ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); | ||
451 | |||
452 | return_ACPI_STATUS(status); | ||
453 | } | ||
454 | |||
455 | /******************************************************************************* | ||
456 | * | ||
457 | * FUNCTION: acpi_ex_data_table_space_handler | ||
458 | * | ||
459 | * PARAMETERS: Function - Read or Write operation | ||
460 | * Address - Where in the space to read or write | ||
461 | * bit_width - Field width in bits (8, 16, or 32) | ||
462 | * Value - Pointer to in or out value | ||
463 | * handler_context - Pointer to Handler's context | ||
464 | * region_context - Pointer to context specific to the | ||
465 | * accessed region | ||
466 | * | ||
467 | * RETURN: Status | ||
468 | * | ||
469 | * DESCRIPTION: Handler for the Data Table address space (Op Region) | ||
470 | * | ||
471 | ******************************************************************************/ | ||
472 | |||
473 | acpi_status | ||
474 | acpi_ex_data_table_space_handler(u32 function, | ||
475 | acpi_physical_address address, | ||
476 | u32 bit_width, | ||
477 | acpi_integer * value, | ||
478 | void *handler_context, void *region_context) | ||
479 | { | ||
480 | ACPI_FUNCTION_TRACE(ex_data_table_space_handler); | ||
481 | |||
482 | /* Perform the memory read or write */ | ||
483 | |||
484 | switch (function) { | ||
485 | case ACPI_READ: | ||
486 | |||
487 | ACPI_MEMCPY(ACPI_CAST_PTR(char, value), | ||
488 | ACPI_PHYSADDR_TO_PTR(address), | ||
489 | ACPI_DIV_8(bit_width)); | ||
490 | break; | ||
491 | |||
492 | case ACPI_WRITE: | ||
493 | default: | ||
494 | |||
495 | return_ACPI_STATUS(AE_SUPPORT); | ||
496 | } | ||
497 | |||
498 | return_ACPI_STATUS(AE_OK); | ||
499 | } | ||