diff options
Diffstat (limited to 'drivers/acpi/acpica/exoparg1.c')
| -rw-r--r-- | drivers/acpi/acpica/exoparg1.c | 149 |
1 files changed, 87 insertions, 62 deletions
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 9635d21e568..1b8e9410440 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -1,4 +1,3 @@ - /****************************************************************************** * * Module Name: exoparg1 - AML execution - opcodes with 1 argument @@ -6,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -100,23 +99,23 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) /* Create a return object of type Integer */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = + acpi_ut_create_integer_object(acpi_os_get_timer()); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - return_desc->integer.value = acpi_os_get_timer(); break; default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; break; } - cleanup: +cleanup: /* Delete return object on error */ @@ -173,7 +172,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) case AML_SLEEP_OP: /* Sleep (msec_time) */ - status = acpi_ex_system_do_suspend(operand[0]->integer.value); + status = acpi_ex_system_do_sleep(operand[0]->integer.value); break; case AML_STALL_OP: /* Stall (usec_time) */ @@ -189,7 +188,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; break; @@ -229,13 +228,13 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; } - cleanup: +cleanup: return_ACPI_STATUS(status); } @@ -261,8 +260,8 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc2 = NULL; u32 temp32; u32 i; - acpi_integer power_of_ten; - acpi_integer digit; + u64 power_of_ten; + u64 digit; ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); @@ -328,7 +327,6 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) break; case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */ - /* * The 64-bit ACPI integer can hold 16 4-bit BCD characters * (if table is 32-bit, integer can hold 8 BCD characters) @@ -362,7 +360,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* Sum the digit into the result with the current power of 10 */ return_desc->integer.value += - (((acpi_integer) temp32) * power_of_ten); + (((u64) temp32) * power_of_ten); /* Shift to next BCD digit */ @@ -392,14 +390,14 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) * remainder from above */ return_desc->integer.value |= - (((acpi_integer) temp32) << ACPI_MUL_4(i)); + (((u64) temp32) << ACPI_MUL_4(i)); } /* Overflow if there is any data left in Digit */ if (digit > 0) { ACPI_ERROR((AE_INFO, - "Integer too large to convert to BCD: %8.8X%8.8X", + "Integer too large to convert to BCD: 0x%8.8X%8.8X", ACPI_FORMAT_UINT64(operand[0]-> integer.value))); status = AE_AML_NUMERIC_OVERFLOW; @@ -408,7 +406,6 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) break; case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */ - /* * This op is a little strange because the internal return value is * different than the return value stored in the result descriptor @@ -439,17 +436,18 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* The object exists in the namespace, return TRUE */ - return_desc->integer.value = ACPI_INTEGER_MAX; + return_desc->integer.value = ACPI_UINT64_MAX; goto cleanup; default: + /* No other opcodes get here */ + break; } break; case AML_STORE_OP: /* Store (Source, Target) */ - /* * A store operand is typically a number, string, buffer or lvalue * Be careful about deleting the source object, @@ -540,7 +538,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) default: /* Unknown opcode */ - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; @@ -553,7 +551,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_store(return_desc, operand[1], walk_state); } - cleanup: +cleanup: /* Delete return object on error */ @@ -589,7 +587,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc = NULL; acpi_status status = AE_OK; u32 type; - acpi_integer value; + u64 value; ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); @@ -599,26 +597,25 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) switch (walk_state->opcode) { case AML_LNOT_OP: /* LNot (Operand) */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object((u64) 0); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } /* - * Set result to ONES (TRUE) if Value == 0. Note: + * Set result to ONES (TRUE) if Value == 0. Note: * return_desc->Integer.Value is initially == 0 (FALSE) from above. */ if (!operand[0]->integer.value) { - return_desc->integer.value = ACPI_INTEGER_MAX; + return_desc->integer.value = ACPI_UINT64_MAX; } break; case AML_DECREMENT_OP: /* Decrement (Operand) */ case AML_INCREMENT_OP: /* Increment (Operand) */ - /* - * Create a new integer. Can't just get the base integer and + * Create a new integer. Can't just get the base integer and * increment it because it may be an Arg or Field. */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); @@ -683,10 +680,9 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) break; case AML_TYPE_OP: /* object_type (source_object) */ - /* * Note: The operand is not resolved at this point because we want to - * get the associated object, not its value. For example, we don't + * get the associated object, not its value. For example, we don't * want to resolve a field_unit to its value, we want the actual * field_unit object. */ @@ -702,17 +698,14 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) /* Allocate a descriptor to hold the type. */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object((u64) type); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - return_desc->integer.value = type; break; case AML_SIZE_OF_OP: /* size_of (source_object) */ - /* * Note: The operand is not resolved at this point because we want to * get the associated object, not its value. @@ -729,7 +722,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) /* * The type of the base object must be integer, buffer, string, or - * package. All others are not supported. + * package. All others are not supported. * * NOTE: Integer is not specifically supported by the ACPI spec, * but is supported implicitly via implicit operand conversion. @@ -738,10 +731,12 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) */ switch (type) { case ACPI_TYPE_INTEGER: + value = acpi_gbl_integer_byte_width; break; case ACPI_TYPE_STRING: + value = temp_desc->string.length; break; @@ -762,6 +757,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) break; default: + ACPI_ERROR((AE_INFO, "Operand must be Buffer/Integer/String/Package - found type %s", acpi_ut_get_type_name(type))); @@ -777,13 +773,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) * Now that we have the size of the object, create a result * object to hold the value */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object(value); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - return_desc->integer.value = value; break; case AML_REF_OF_OP: /* ref_of (source_object) */ @@ -865,9 +859,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) break; case ACPI_TYPE_STRING: + break; default: + status = AE_AML_OPERAND_TYPE; goto cleanup; } @@ -928,7 +924,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) */ switch (operand[0]->reference.class) { case ACPI_REFCLASS_INDEX: - /* * The target type for the Index operator must be * either a Buffer or a Package @@ -946,44 +941,44 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) * NOTE: index into a buffer is NOT a pointer to a * sub-buffer of the main buffer, it is only a pointer to a * single element (byte) of the buffer! + * + * Since we are returning the value of the buffer at the + * indexed location, we don't need to add an additional + * reference to the buffer itself. */ return_desc = - acpi_ut_create_internal_object - (ACPI_TYPE_INTEGER); + acpi_ut_create_integer_object((u64) + temp_desc->buffer.pointer[operand[0]->reference.value]); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - /* - * Since we are returning the value of the buffer at the - * indexed location, we don't need to add an additional - * reference to the buffer itself. - */ - return_desc->integer.value = - temp_desc->buffer. - pointer[operand[0]->reference. - value]; break; case ACPI_TYPE_PACKAGE: - /* - * Return the referenced element of the package. We must + * Return the referenced element of the package. We must * add another reference to the referenced object, however. */ return_desc = *(operand[0]->reference.where); - if (return_desc) { - acpi_ut_add_reference - (return_desc); + if (!return_desc) { + /* + * Element is NULL, do not allow the dereference. + * This provides compatibility with other ACPI + * implementations. + */ + return_ACPI_STATUS + (AE_AML_UNINITIALIZED_ELEMENT); } + + acpi_ut_add_reference(return_desc); break; default: ACPI_ERROR((AE_INFO, - "Unknown Index TargetType %X in reference object %p", + "Unknown Index TargetType 0x%X in reference object %p", operand[0]->reference. target_type, operand[0])); status = AE_AML_OPERAND_TYPE; @@ -1002,16 +997,46 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_namespace_node *) return_desc); - } + if (!return_desc) { + break; + } + + /* + * June 2013: + * buffer_fields/field_units require additional resolution + */ + switch (return_desc->common.type) { + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + + status = + acpi_ex_read_data_from_field + (walk_state, return_desc, + &temp_desc); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + return_desc = temp_desc; + break; - /* Add another reference to the object! */ + default: - acpi_ut_add_reference(return_desc); + /* Add another reference to the object */ + + acpi_ut_add_reference + (return_desc); + break; + } + } break; default: + ACPI_ERROR((AE_INFO, - "Unknown class in reference(%p) - %2.2X", + "Unknown class in reference(%p) - 0x%2.2X", operand[0], operand[0]->reference.class)); @@ -1023,13 +1048,13 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", + ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", walk_state->opcode)); status = AE_AML_BAD_OPCODE; goto cleanup; } - cleanup: +cleanup: /* Delete return object on error */ |