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path: root/drivers/acpi/resources/rsio.c
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Diffstat (limited to 'drivers/acpi/resources/rsio.c')
-rw-r--r--drivers/acpi/resources/rsio.c197
1 files changed, 82 insertions, 115 deletions
diff --git a/drivers/acpi/resources/rsio.c b/drivers/acpi/resources/rsio.c
index 972c746d37e4..23a4d149fac8 100644
--- a/drivers/acpi/resources/rsio.c
+++ b/drivers/acpi/resources/rsio.c
@@ -81,67 +81,60 @@ acpi_rs_io_resource (
81 struct acpi_resource *output_struct = (void *) *output_buffer; 81 struct acpi_resource *output_struct = (void *) *output_buffer;
82 u16 temp16 = 0; 82 u16 temp16 = 0;
83 u8 temp8 = 0; 83 u8 temp8 = 0;
84 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_io); 84 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (
85 struct acpi_resource_io);
85 86
86 87
87 ACPI_FUNCTION_TRACE ("rs_io_resource"); 88 ACPI_FUNCTION_TRACE ("rs_io_resource");
88 89
89 90
90 /* 91 /* The number of bytes consumed are Constant */
91 * The number of bytes consumed are Constant 92
92 */
93 *bytes_consumed = 8; 93 *bytes_consumed = 8;
94 94
95 output_struct->id = ACPI_RSTYPE_IO; 95 output_struct->id = ACPI_RSTYPE_IO;
96 96
97 /* 97 /* Check Decode */
98 * Check Decode 98
99 */
100 buffer += 1; 99 buffer += 1;
101 temp8 = *buffer; 100 temp8 = *buffer;
102 101
103 output_struct->data.io.io_decode = temp8 & 0x01; 102 output_struct->data.io.io_decode = temp8 & 0x01;
104 103
105 /* 104 /* Check min_base Address */
106 * Check min_base Address 105
107 */
108 buffer += 1; 106 buffer += 1;
109 ACPI_MOVE_16_TO_16 (&temp16, buffer); 107 ACPI_MOVE_16_TO_16 (&temp16, buffer);
110 108
111 output_struct->data.io.min_base_address = temp16; 109 output_struct->data.io.min_base_address = temp16;
112 110
113 /* 111 /* Check max_base Address */
114 * Check max_base Address 112
115 */
116 buffer += 2; 113 buffer += 2;
117 ACPI_MOVE_16_TO_16 (&temp16, buffer); 114 ACPI_MOVE_16_TO_16 (&temp16, buffer);
118 115
119 output_struct->data.io.max_base_address = temp16; 116 output_struct->data.io.max_base_address = temp16;
120 117
121 /* 118 /* Check Base alignment */
122 * Check Base alignment 119
123 */
124 buffer += 2; 120 buffer += 2;
125 temp8 = *buffer; 121 temp8 = *buffer;
126 122
127 output_struct->data.io.alignment = temp8; 123 output_struct->data.io.alignment = temp8;
128 124
129 /* 125 /* Check range_length */
130 * Check range_length 126
131 */
132 buffer += 1; 127 buffer += 1;
133 temp8 = *buffer; 128 temp8 = *buffer;
134 129
135 output_struct->data.io.range_length = temp8; 130 output_struct->data.io.range_length = temp8;
136 131
137 /* 132 /* Set the Length parameter */
138 * Set the Length parameter 133
139 */
140 output_struct->length = (u32) struct_size; 134 output_struct->length = (u32) struct_size;
141 135
142 /* 136 /* Return the final size of the structure */
143 * Return the final size of the structure 137
144 */
145 *structure_size = struct_size; 138 *structure_size = struct_size;
146 return_ACPI_STATUS (AE_OK); 139 return_ACPI_STATUS (AE_OK);
147} 140}
@@ -179,43 +172,39 @@ acpi_rs_fixed_io_resource (
179 struct acpi_resource *output_struct = (void *) *output_buffer; 172 struct acpi_resource *output_struct = (void *) *output_buffer;
180 u16 temp16 = 0; 173 u16 temp16 = 0;
181 u8 temp8 = 0; 174 u8 temp8 = 0;
182 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_fixed_io); 175 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (
176 struct acpi_resource_fixed_io);
183 177
184 178
185 ACPI_FUNCTION_TRACE ("rs_fixed_io_resource"); 179 ACPI_FUNCTION_TRACE ("rs_fixed_io_resource");
186 180
187 181
188 /* 182 /* The number of bytes consumed are Constant */
189 * The number of bytes consumed are Constant 183
190 */
191 *bytes_consumed = 4; 184 *bytes_consumed = 4;
192 185
193 output_struct->id = ACPI_RSTYPE_FIXED_IO; 186 output_struct->id = ACPI_RSTYPE_FIXED_IO;
194 187
195 /* 188 /* Check Range Base Address */
196 * Check Range Base Address 189
197 */
198 buffer += 1; 190 buffer += 1;
199 ACPI_MOVE_16_TO_16 (&temp16, buffer); 191 ACPI_MOVE_16_TO_16 (&temp16, buffer);
200 192
201 output_struct->data.fixed_io.base_address = temp16; 193 output_struct->data.fixed_io.base_address = temp16;
202 194
203 /* 195 /* Check range_length */
204 * Check range_length 196
205 */
206 buffer += 2; 197 buffer += 2;
207 temp8 = *buffer; 198 temp8 = *buffer;
208 199
209 output_struct->data.fixed_io.range_length = temp8; 200 output_struct->data.fixed_io.range_length = temp8;
210 201
211 /* 202 /* Set the Length parameter */
212 * Set the Length parameter 203
213 */
214 output_struct->length = (u32) struct_size; 204 output_struct->length = (u32) struct_size;
215 205
216 /* 206 /* Return the final size of the structure */
217 * Return the final size of the structure 207
218 */
219 *structure_size = struct_size; 208 *structure_size = struct_size;
220 return_ACPI_STATUS (AE_OK); 209 return_ACPI_STATUS (AE_OK);
221} 210}
@@ -251,55 +240,48 @@ acpi_rs_io_stream (
251 ACPI_FUNCTION_TRACE ("rs_io_stream"); 240 ACPI_FUNCTION_TRACE ("rs_io_stream");
252 241
253 242
254 /* 243 /* The descriptor field is static */
255 * The descriptor field is static 244
256 */
257 *buffer = 0x47; 245 *buffer = 0x47;
258 buffer += 1; 246 buffer += 1;
259 247
260 /* 248 /* Io Information Byte */
261 * Io Information Byte 249
262 */
263 temp8 = (u8) (linked_list->data.io.io_decode & 0x01); 250 temp8 = (u8) (linked_list->data.io.io_decode & 0x01);
264 251
265 *buffer = temp8; 252 *buffer = temp8;
266 buffer += 1; 253 buffer += 1;
267 254
268 /* 255 /* Set the Range minimum base address */
269 * Set the Range minimum base address 256
270 */
271 temp16 = (u16) linked_list->data.io.min_base_address; 257 temp16 = (u16) linked_list->data.io.min_base_address;
272 258
273 ACPI_MOVE_16_TO_16 (buffer, &temp16); 259 ACPI_MOVE_16_TO_16 (buffer, &temp16);
274 buffer += 2; 260 buffer += 2;
275 261
276 /* 262 /* Set the Range maximum base address */
277 * Set the Range maximum base address 263
278 */
279 temp16 = (u16) linked_list->data.io.max_base_address; 264 temp16 = (u16) linked_list->data.io.max_base_address;
280 265
281 ACPI_MOVE_16_TO_16 (buffer, &temp16); 266 ACPI_MOVE_16_TO_16 (buffer, &temp16);
282 buffer += 2; 267 buffer += 2;
283 268
284 /* 269 /* Set the base alignment */
285 * Set the base alignment 270
286 */
287 temp8 = (u8) linked_list->data.io.alignment; 271 temp8 = (u8) linked_list->data.io.alignment;
288 272
289 *buffer = temp8; 273 *buffer = temp8;
290 buffer += 1; 274 buffer += 1;
291 275
292 /* 276 /* Set the range length */
293 * Set the range length 277
294 */
295 temp8 = (u8) linked_list->data.io.range_length; 278 temp8 = (u8) linked_list->data.io.range_length;
296 279
297 *buffer = temp8; 280 *buffer = temp8;
298 buffer += 1; 281 buffer += 1;
299 282
300 /* 283 /* Return the number of bytes consumed in this operation */
301 * Return the number of bytes consumed in this operation 284
302 */
303 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); 285 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer);
304 return_ACPI_STATUS (AE_OK); 286 return_ACPI_STATUS (AE_OK);
305} 287}
@@ -335,32 +317,28 @@ acpi_rs_fixed_io_stream (
335 ACPI_FUNCTION_TRACE ("rs_fixed_io_stream"); 317 ACPI_FUNCTION_TRACE ("rs_fixed_io_stream");
336 318
337 319
338 /* 320 /* The descriptor field is static */
339 * The descriptor field is static 321
340 */
341 *buffer = 0x4B; 322 *buffer = 0x4B;
342 323
343 buffer += 1; 324 buffer += 1;
344 325
345 /* 326 /* Set the Range base address */
346 * Set the Range base address 327
347 */
348 temp16 = (u16) linked_list->data.fixed_io.base_address; 328 temp16 = (u16) linked_list->data.fixed_io.base_address;
349 329
350 ACPI_MOVE_16_TO_16 (buffer, &temp16); 330 ACPI_MOVE_16_TO_16 (buffer, &temp16);
351 buffer += 2; 331 buffer += 2;
352 332
353 /* 333 /* Set the range length */
354 * Set the range length 334
355 */
356 temp8 = (u8) linked_list->data.fixed_io.range_length; 335 temp8 = (u8) linked_list->data.fixed_io.range_length;
357 336
358 *buffer = temp8; 337 *buffer = temp8;
359 buffer += 1; 338 buffer += 1;
360 339
361 /* 340 /* Return the number of bytes consumed in this operation */
362 * Return the number of bytes consumed in this operation 341
363 */
364 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); 342 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer);
365 return_ACPI_STATUS (AE_OK); 343 return_ACPI_STATUS (AE_OK);
366} 344}
@@ -399,21 +377,20 @@ acpi_rs_dma_resource (
399 u8 temp8 = 0; 377 u8 temp8 = 0;
400 u8 index; 378 u8 index;
401 u8 i; 379 u8 i;
402 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_dma); 380 acpi_size struct_size = ACPI_SIZEOF_RESOURCE (
381 struct acpi_resource_dma);
403 382
404 383
405 ACPI_FUNCTION_TRACE ("rs_dma_resource"); 384 ACPI_FUNCTION_TRACE ("rs_dma_resource");
406 385
407 386
408 /* 387 /* The number of bytes consumed are Constant */
409 * The number of bytes consumed are Constant 388
410 */
411 *bytes_consumed = 3; 389 *bytes_consumed = 3;
412 output_struct->id = ACPI_RSTYPE_DMA; 390 output_struct->id = ACPI_RSTYPE_DMA;
413 391
414 /* 392 /* Point to the 8-bits of Byte 1 */
415 * Point to the 8-bits of Byte 1 393
416 */
417 buffer += 1; 394 buffer += 1;
418 temp8 = *buffer; 395 temp8 = *buffer;
419 396
@@ -430,46 +407,40 @@ acpi_rs_dma_resource (
430 407
431 output_struct->data.dma.number_of_channels = i; 408 output_struct->data.dma.number_of_channels = i;
432 if (i > 0) { 409 if (i > 0) {
433 /* 410 /* Calculate the structure size based upon the number of interrupts */
434 * Calculate the structure size based upon the number of interrupts 411
435 */
436 struct_size += ((acpi_size) i - 1) * 4; 412 struct_size += ((acpi_size) i - 1) * 4;
437 } 413 }
438 414
439 /* 415 /* Point to Byte 2 */
440 * Point to Byte 2 416
441 */
442 buffer += 1; 417 buffer += 1;
443 temp8 = *buffer; 418 temp8 = *buffer;
444 419
445 /* 420 /* Check for transfer preference (Bits[1:0]) */
446 * Check for transfer preference (Bits[1:0]) 421
447 */
448 output_struct->data.dma.transfer = temp8 & 0x03; 422 output_struct->data.dma.transfer = temp8 & 0x03;
449 423
450 if (0x03 == output_struct->data.dma.transfer) { 424 if (0x03 == output_struct->data.dma.transfer) {
451 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid DMA.Transfer preference (3)\n")); 425 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
426 "Invalid DMA.Transfer preference (3)\n"));
452 return_ACPI_STATUS (AE_BAD_DATA); 427 return_ACPI_STATUS (AE_BAD_DATA);
453 } 428 }
454 429
455 /* 430 /* Get bus master preference (Bit[2]) */
456 * Get bus master preference (Bit[2]) 431
457 */
458 output_struct->data.dma.bus_master = (temp8 >> 2) & 0x01; 432 output_struct->data.dma.bus_master = (temp8 >> 2) & 0x01;
459 433
460 /* 434 /* Get channel speed support (Bits[6:5]) */
461 * Get channel speed support (Bits[6:5]) 435
462 */
463 output_struct->data.dma.type = (temp8 >> 5) & 0x03; 436 output_struct->data.dma.type = (temp8 >> 5) & 0x03;
464 437
465 /* 438 /* Set the Length parameter */
466 * Set the Length parameter 439
467 */
468 output_struct->length = (u32) struct_size; 440 output_struct->length = (u32) struct_size;
469 441
470 /* 442 /* Return the final size of the structure */
471 * Return the final size of the structure 443
472 */
473 *structure_size = struct_size; 444 *structure_size = struct_size;
474 return_ACPI_STATUS (AE_OK); 445 return_ACPI_STATUS (AE_OK);
475} 446}
@@ -506,16 +477,14 @@ acpi_rs_dma_stream (
506 ACPI_FUNCTION_TRACE ("rs_dma_stream"); 477 ACPI_FUNCTION_TRACE ("rs_dma_stream");
507 478
508 479
509 /* 480 /* The descriptor field is static */
510 * The descriptor field is static 481
511 */
512 *buffer = 0x2A; 482 *buffer = 0x2A;
513 buffer += 1; 483 buffer += 1;
514 temp8 = 0; 484 temp8 = 0;
515 485
516 /* 486 /* Loop through all of the Channels and set the mask bits */
517 * Loop through all of the Channels and set the mask bits 487
518 */
519 for (index = 0; 488 for (index = 0;
520 index < linked_list->data.dma.number_of_channels; 489 index < linked_list->data.dma.number_of_channels;
521 index++) { 490 index++) {
@@ -526,9 +495,8 @@ acpi_rs_dma_stream (
526 *buffer = temp8; 495 *buffer = temp8;
527 buffer += 1; 496 buffer += 1;
528 497
529 /* 498 /* Set the DMA Info */
530 * Set the DMA Info 499
531 */
532 temp8 = (u8) ((linked_list->data.dma.type & 0x03) << 5); 500 temp8 = (u8) ((linked_list->data.dma.type & 0x03) << 5);
533 temp8 |= ((linked_list->data.dma.bus_master & 0x01) << 2); 501 temp8 |= ((linked_list->data.dma.bus_master & 0x01) << 2);
534 temp8 |= (linked_list->data.dma.transfer & 0x03); 502 temp8 |= (linked_list->data.dma.transfer & 0x03);
@@ -536,9 +504,8 @@ acpi_rs_dma_stream (
536 *buffer = temp8; 504 *buffer = temp8;
537 buffer += 1; 505 buffer += 1;
538 506
539 /* 507 /* Return the number of bytes consumed in this operation */
540 * Return the number of bytes consumed in this operation 508
541 */
542 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); 509 *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer);
543 return_ACPI_STATUS (AE_OK); 510 return_ACPI_STATUS (AE_OK);
544} 511}