diff options
Diffstat (limited to 'drivers/acpi/executer/exmisc.c')
| -rw-r--r-- | drivers/acpi/executer/exmisc.c | 358 |
1 files changed, 158 insertions, 200 deletions
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 022f281345b8..a3f4d72bedc9 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -42,15 +42,12 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acinterp.h> #include <acpi/amlcode.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exmisc") - +ACPI_MODULE_NAME("exmisc") /******************************************************************************* * @@ -66,27 +63,23 @@ * Common code for the ref_of_op and the cond_ref_of_op. * ******************************************************************************/ - acpi_status -acpi_ex_get_object_reference ( - union acpi_operand_object *obj_desc, - union acpi_operand_object **return_desc, - struct acpi_walk_state *walk_state) +acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, + union acpi_operand_object **return_desc, + struct acpi_walk_state *walk_state) { - union acpi_operand_object *reference_obj; - union acpi_operand_object *referenced_obj; - - - ACPI_FUNCTION_TRACE_PTR ("ex_get_object_reference", obj_desc); + union acpi_operand_object *reference_obj; + union acpi_operand_object *referenced_obj; + ACPI_FUNCTION_TRACE_PTR("ex_get_object_reference", obj_desc); *return_desc = NULL; - switch (ACPI_GET_DESCRIPTOR_TYPE (obj_desc)) { + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { case ACPI_DESC_TYPE_OPERAND: - if (ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) { - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) { + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* @@ -104,13 +97,11 @@ acpi_ex_get_object_reference ( default: - ACPI_REPORT_ERROR (("Unknown Reference opcode in get_reference %X\n", - obj_desc->reference.opcode)); - return_ACPI_STATUS (AE_AML_INTERNAL); + ACPI_REPORT_ERROR(("Unknown Reference opcode in get_reference %X\n", obj_desc->reference.opcode)); + return_ACPI_STATUS(AE_AML_INTERNAL); } break; - case ACPI_DESC_TYPE_NAMED: /* @@ -119,34 +110,32 @@ acpi_ex_get_object_reference ( referenced_obj = obj_desc; break; - default: - ACPI_REPORT_ERROR (("Invalid descriptor type in get_reference: %X\n", - ACPI_GET_DESCRIPTOR_TYPE (obj_desc))); - return_ACPI_STATUS (AE_TYPE); + ACPI_REPORT_ERROR(("Invalid descriptor type in get_reference: %X\n", ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); + return_ACPI_STATUS(AE_TYPE); } - /* Create a new reference object */ - reference_obj = acpi_ut_create_internal_object (ACPI_TYPE_LOCAL_REFERENCE); + reference_obj = + acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); if (!reference_obj) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } reference_obj->reference.opcode = AML_REF_OF_OP; reference_obj->reference.object = referenced_obj; *return_desc = reference_obj; - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Object %p Type [%s], returning Reference %p\n", - obj_desc, acpi_ut_get_object_type_name (obj_desc), *return_desc)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Object %p Type [%s], returning Reference %p\n", + obj_desc, acpi_ut_get_object_type_name(obj_desc), + *return_desc)); - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_concat_template @@ -163,63 +152,58 @@ acpi_ex_get_object_reference ( ******************************************************************************/ acpi_status -acpi_ex_concat_template ( - union acpi_operand_object *operand0, - union acpi_operand_object *operand1, - union acpi_operand_object **actual_return_desc, - struct acpi_walk_state *walk_state) +acpi_ex_concat_template(union acpi_operand_object *operand0, + union acpi_operand_object *operand1, + union acpi_operand_object **actual_return_desc, + struct acpi_walk_state *walk_state) { - union acpi_operand_object *return_desc; - u8 *new_buf; - u8 *end_tag1; - u8 *end_tag2; - acpi_size length1; - acpi_size length2; - - - ACPI_FUNCTION_TRACE ("ex_concat_template"); + union acpi_operand_object *return_desc; + u8 *new_buf; + u8 *end_tag1; + u8 *end_tag2; + acpi_size length1; + acpi_size length2; + ACPI_FUNCTION_TRACE("ex_concat_template"); /* Find the end_tags in each resource template */ - end_tag1 = acpi_ut_get_resource_end_tag (operand0); - end_tag2 = acpi_ut_get_resource_end_tag (operand1); + end_tag1 = acpi_ut_get_resource_end_tag(operand0); + end_tag2 = acpi_ut_get_resource_end_tag(operand1); if (!end_tag1 || !end_tag2) { - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* Compute the length of each part */ - length1 = ACPI_PTR_DIFF (end_tag1, operand0->buffer.pointer); - length2 = ACPI_PTR_DIFF (end_tag2, operand1->buffer.pointer) + - 2; /* Size of END_TAG */ + length1 = ACPI_PTR_DIFF(end_tag1, operand0->buffer.pointer); + length2 = ACPI_PTR_DIFF(end_tag2, operand1->buffer.pointer) + 2; /* Size of END_TAG */ /* Create a new buffer object for the result */ - return_desc = acpi_ut_create_buffer_object (length1 + length2); + return_desc = acpi_ut_create_buffer_object(length1 + length2); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Copy the templates to the new descriptor */ new_buf = return_desc->buffer.pointer; - ACPI_MEMCPY (new_buf, operand0->buffer.pointer, length1); - ACPI_MEMCPY (new_buf + length1, operand1->buffer.pointer, length2); + ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length1); + ACPI_MEMCPY(new_buf + length1, operand1->buffer.pointer, length2); /* Compute the new checksum */ new_buf[return_desc->buffer.length - 1] = - acpi_ut_generate_checksum (return_desc->buffer.pointer, - (return_desc->buffer.length - 1)); + acpi_ut_generate_checksum(return_desc->buffer.pointer, + (return_desc->buffer.length - 1)); /* Return the completed template descriptor */ *actual_return_desc = return_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_do_concatenate @@ -236,21 +220,18 @@ acpi_ex_concat_template ( ******************************************************************************/ acpi_status -acpi_ex_do_concatenate ( - union acpi_operand_object *operand0, - union acpi_operand_object *operand1, - union acpi_operand_object **actual_return_desc, - struct acpi_walk_state *walk_state) +acpi_ex_do_concatenate(union acpi_operand_object *operand0, + union acpi_operand_object *operand1, + union acpi_operand_object **actual_return_desc, + struct acpi_walk_state *walk_state) { - union acpi_operand_object *local_operand1 = operand1; - union acpi_operand_object *return_desc; - char *new_buf; - acpi_status status; - acpi_size new_length; - - - ACPI_FUNCTION_TRACE ("ex_do_concatenate"); + union acpi_operand_object *local_operand1 = operand1; + union acpi_operand_object *return_desc; + char *new_buf; + acpi_status status; + acpi_size new_length; + ACPI_FUNCTION_TRACE("ex_do_concatenate"); /* * Convert the second operand if necessary. The first operand @@ -259,27 +240,28 @@ acpi_ex_do_concatenate ( * guaranteed to be either Integer/String/Buffer by the operand * resolution mechanism. */ - switch (ACPI_GET_OBJECT_TYPE (operand0)) { + switch (ACPI_GET_OBJECT_TYPE(operand0)) { case ACPI_TYPE_INTEGER: - status = acpi_ex_convert_to_integer (operand1, &local_operand1, 16); + status = + acpi_ex_convert_to_integer(operand1, &local_operand1, 16); break; case ACPI_TYPE_STRING: - status = acpi_ex_convert_to_string (operand1, &local_operand1, - ACPI_IMPLICIT_CONVERT_HEX); + status = acpi_ex_convert_to_string(operand1, &local_operand1, + ACPI_IMPLICIT_CONVERT_HEX); break; case ACPI_TYPE_BUFFER: - status = acpi_ex_convert_to_buffer (operand1, &local_operand1); + status = acpi_ex_convert_to_buffer(operand1, &local_operand1); break; default: - ACPI_REPORT_ERROR (("Concat - invalid obj type: %X\n", - ACPI_GET_OBJECT_TYPE (operand0))); + ACPI_REPORT_ERROR(("Concat - invalid obj type: %X\n", + ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; } - if (ACPI_FAILURE (status)) { + if (ACPI_FAILURE(status)) { goto cleanup; } @@ -296,32 +278,33 @@ acpi_ex_do_concatenate ( * 2) Two Strings concatenated to produce a new String * 3) Two Buffers concatenated to produce a new Buffer */ - switch (ACPI_GET_OBJECT_TYPE (operand0)) { + switch (ACPI_GET_OBJECT_TYPE(operand0)) { case ACPI_TYPE_INTEGER: /* Result of two Integers is a Buffer */ /* Need enough buffer space for two integers */ - return_desc = acpi_ut_create_buffer_object ( - ACPI_MUL_2 (acpi_gbl_integer_byte_width)); + return_desc = acpi_ut_create_buffer_object((acpi_size) + ACPI_MUL_2 + (acpi_gbl_integer_byte_width)); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - new_buf = (char *) return_desc->buffer.pointer; + new_buf = (char *)return_desc->buffer.pointer; /* Copy the first integer, LSB first */ - ACPI_MEMCPY (new_buf, - &operand0->integer.value, - acpi_gbl_integer_byte_width); + ACPI_MEMCPY(new_buf, + &operand0->integer.value, + acpi_gbl_integer_byte_width); /* Copy the second integer (LSB first) after the first */ - ACPI_MEMCPY (new_buf + acpi_gbl_integer_byte_width, - &local_operand1->integer.value, - acpi_gbl_integer_byte_width); + ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width, + &local_operand1->integer.value, + acpi_gbl_integer_byte_width); break; case ACPI_TYPE_STRING: @@ -329,13 +312,13 @@ acpi_ex_do_concatenate ( /* Result of two Strings is a String */ new_length = (acpi_size) operand0->string.length + - (acpi_size) local_operand1->string.length; + (acpi_size) local_operand1->string.length; if (new_length > ACPI_MAX_STRING_CONVERSION) { status = AE_AML_STRING_LIMIT; goto cleanup; } - return_desc = acpi_ut_create_string_object (new_length); + return_desc = acpi_ut_create_string_object(new_length); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -345,56 +328,56 @@ acpi_ex_do_concatenate ( /* Concatenate the strings */ - ACPI_STRCPY (new_buf, - operand0->string.pointer); - ACPI_STRCPY (new_buf + operand0->string.length, - local_operand1->string.pointer); + ACPI_STRCPY(new_buf, operand0->string.pointer); + ACPI_STRCPY(new_buf + operand0->string.length, + local_operand1->string.pointer); break; case ACPI_TYPE_BUFFER: /* Result of two Buffers is a Buffer */ - return_desc = acpi_ut_create_buffer_object ( - (acpi_size) operand0->buffer.length + - (acpi_size) local_operand1->buffer.length); + return_desc = acpi_ut_create_buffer_object((acpi_size) + operand0->buffer. + length + + (acpi_size) + local_operand1-> + buffer.length); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - new_buf = (char *) return_desc->buffer.pointer; + new_buf = (char *)return_desc->buffer.pointer; /* Concatenate the buffers */ - ACPI_MEMCPY (new_buf, - operand0->buffer.pointer, - operand0->buffer.length); - ACPI_MEMCPY (new_buf + operand0->buffer.length, - local_operand1->buffer.pointer, - local_operand1->buffer.length); + ACPI_MEMCPY(new_buf, + operand0->buffer.pointer, operand0->buffer.length); + ACPI_MEMCPY(new_buf + operand0->buffer.length, + local_operand1->buffer.pointer, + local_operand1->buffer.length); break; default: /* Invalid object type, should not happen here */ - ACPI_REPORT_ERROR (("Concatenate - Invalid object type: %X\n", - ACPI_GET_OBJECT_TYPE (operand0))); - status =AE_AML_INTERNAL; + ACPI_REPORT_ERROR(("Concatenate - Invalid object type: %X\n", + ACPI_GET_OBJECT_TYPE(operand0))); + status = AE_AML_INTERNAL; goto cleanup; } *actual_return_desc = return_desc; -cleanup: + cleanup: if (local_operand1 != operand1) { - acpi_ut_remove_reference (local_operand1); + acpi_ut_remove_reference(local_operand1); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_do_math_op @@ -412,62 +395,49 @@ cleanup: ******************************************************************************/ acpi_integer -acpi_ex_do_math_op ( - u16 opcode, - acpi_integer integer0, - acpi_integer integer1) +acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) { - ACPI_FUNCTION_ENTRY (); - + ACPI_FUNCTION_ENTRY(); switch (opcode) { - case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */ + case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */ return (integer0 + integer1); - - case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */ + case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */ return (integer0 & integer1); - - case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */ + case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */ return (~(integer0 & integer1)); - - case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */ + case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */ return (integer0 | integer1); - - case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */ + case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */ return (~(integer0 | integer1)); - - case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */ + case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */ return (integer0 ^ integer1); - - case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */ + case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */ return (integer0 * integer1); - - case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result)*/ + case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */ return (integer0 << integer1); - - case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ + case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ return (integer0 >> integer1); - - case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ + case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ return (integer0 - integer1); @@ -477,7 +447,6 @@ acpi_ex_do_math_op ( } } - /******************************************************************************* * * FUNCTION: acpi_ex_do_logical_numeric_op @@ -499,28 +468,24 @@ acpi_ex_do_math_op ( ******************************************************************************/ acpi_status -acpi_ex_do_logical_numeric_op ( - u16 opcode, - acpi_integer integer0, - acpi_integer integer1, - u8 *logical_result) +acpi_ex_do_logical_numeric_op(u16 opcode, + acpi_integer integer0, + acpi_integer integer1, u8 * logical_result) { - acpi_status status = AE_OK; - u8 local_result = FALSE; - - - ACPI_FUNCTION_TRACE ("ex_do_logical_numeric_op"); + acpi_status status = AE_OK; + u8 local_result = FALSE; + ACPI_FUNCTION_TRACE("ex_do_logical_numeric_op"); switch (opcode) { - case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ + case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ if (integer0 && integer1) { local_result = TRUE; } break; - case AML_LOR_OP: /* LOr (Integer0, Integer1) */ + case AML_LOR_OP: /* LOr (Integer0, Integer1) */ if (integer0 || integer1) { local_result = TRUE; @@ -535,10 +500,9 @@ acpi_ex_do_logical_numeric_op ( /* Return the logical result and status */ *logical_result = local_result; - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_do_logical_op @@ -566,24 +530,20 @@ acpi_ex_do_logical_numeric_op ( ******************************************************************************/ acpi_status -acpi_ex_do_logical_op ( - u16 opcode, - union acpi_operand_object *operand0, - union acpi_operand_object *operand1, - u8 *logical_result) +acpi_ex_do_logical_op(u16 opcode, + union acpi_operand_object *operand0, + union acpi_operand_object *operand1, u8 * logical_result) { - union acpi_operand_object *local_operand1 = operand1; - acpi_integer integer0; - acpi_integer integer1; - u32 length0; - u32 length1; - acpi_status status = AE_OK; - u8 local_result = FALSE; - int compare; - - - ACPI_FUNCTION_TRACE ("ex_do_logical_op"); + union acpi_operand_object *local_operand1 = operand1; + acpi_integer integer0; + acpi_integer integer1; + u32 length0; + u32 length1; + acpi_status status = AE_OK; + u8 local_result = FALSE; + int compare; + ACPI_FUNCTION_TRACE("ex_do_logical_op"); /* * Convert the second operand if necessary. The first operand @@ -592,18 +552,19 @@ acpi_ex_do_logical_op ( * guaranteed to be either Integer/String/Buffer by the operand * resolution mechanism. */ - switch (ACPI_GET_OBJECT_TYPE (operand0)) { + switch (ACPI_GET_OBJECT_TYPE(operand0)) { case ACPI_TYPE_INTEGER: - status = acpi_ex_convert_to_integer (operand1, &local_operand1, 16); + status = + acpi_ex_convert_to_integer(operand1, &local_operand1, 16); break; case ACPI_TYPE_STRING: - status = acpi_ex_convert_to_string (operand1, &local_operand1, - ACPI_IMPLICIT_CONVERT_HEX); + status = acpi_ex_convert_to_string(operand1, &local_operand1, + ACPI_IMPLICIT_CONVERT_HEX); break; case ACPI_TYPE_BUFFER: - status = acpi_ex_convert_to_buffer (operand1, &local_operand1); + status = acpi_ex_convert_to_buffer(operand1, &local_operand1); break; default: @@ -611,14 +572,14 @@ acpi_ex_do_logical_op ( break; } - if (ACPI_FAILURE (status)) { + if (ACPI_FAILURE(status)) { goto cleanup; } /* * Two cases: 1) Both Integers, 2) Both Strings or Buffers */ - if (ACPI_GET_OBJECT_TYPE (operand0) == ACPI_TYPE_INTEGER) { + if (ACPI_GET_OBJECT_TYPE(operand0) == ACPI_TYPE_INTEGER) { /* * 1) Both operands are of type integer * Note: local_operand1 may have changed above @@ -627,21 +588,21 @@ acpi_ex_do_logical_op ( integer1 = local_operand1->integer.value; switch (opcode) { - case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ + case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ if (integer0 == integer1) { local_result = TRUE; } break; - case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ + case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ if (integer0 > integer1) { local_result = TRUE; } break; - case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ + case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ if (integer0 < integer1) { local_result = TRUE; @@ -652,8 +613,7 @@ acpi_ex_do_logical_op ( status = AE_AML_INTERNAL; break; } - } - else { + } else { /* * 2) Both operands are Strings or both are Buffers * Note: Code below takes advantage of common Buffer/String @@ -665,31 +625,31 @@ acpi_ex_do_logical_op ( /* Lexicographic compare: compare the data bytes */ - compare = ACPI_MEMCMP ((const char * ) operand0->buffer.pointer, - (const char * ) local_operand1->buffer.pointer, - (length0 > length1) ? length1 : length0); + compare = ACPI_MEMCMP((const char *)operand0->buffer.pointer, + (const char *)local_operand1->buffer. + pointer, + (length0 > length1) ? length1 : length0); switch (opcode) { - case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ + case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */ /* Length and all bytes must be equal */ - if ((length0 == length1) && - (compare == 0)) { + if ((length0 == length1) && (compare == 0)) { /* Length and all bytes match ==> TRUE */ local_result = TRUE; } break; - case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ + case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */ if (compare > 0) { local_result = TRUE; - goto cleanup; /* TRUE */ + goto cleanup; /* TRUE */ } if (compare < 0) { - goto cleanup; /* FALSE */ + goto cleanup; /* FALSE */ } /* Bytes match (to shortest length), compare lengths */ @@ -699,14 +659,14 @@ acpi_ex_do_logical_op ( } break; - case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ + case AML_LLESS_OP: /* LLess (Operand0, Operand1) */ if (compare > 0) { - goto cleanup; /* FALSE */ + goto cleanup; /* FALSE */ } if (compare < 0) { local_result = TRUE; - goto cleanup; /* TRUE */ + goto cleanup; /* TRUE */ } /* Bytes match (to shortest length), compare lengths */ @@ -722,18 +682,16 @@ acpi_ex_do_logical_op ( } } -cleanup: + cleanup: /* New object was created if implicit conversion performed - delete */ if (local_operand1 != operand1) { - acpi_ut_remove_reference (local_operand1); + acpi_ut_remove_reference(local_operand1); } /* Return the logical result and status */ *logical_result = local_result; - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - - |