diff options
Diffstat (limited to 'drivers/acpi/executer/exfldio.c')
| -rw-r--r-- | drivers/acpi/executer/exfldio.c | 644 |
1 files changed, 322 insertions, 322 deletions
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c index 3c2f89e00f7..ba6e08843c2 100644 --- a/drivers/acpi/executer/exfldio.c +++ b/drivers/acpi/executer/exfldio.c @@ -41,36 +41,28 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acinterp.h> #include <acpi/amlcode.h> #include <acpi/acevents.h> #include <acpi/acdispat.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exfldio") +ACPI_MODULE_NAME("exfldio") /* Local prototypes */ - static acpi_status -acpi_ex_field_datum_io ( - union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer *value, - u32 read_write); +acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 read_write); static u8 -acpi_ex_register_overflow ( - union acpi_operand_object *obj_desc, - acpi_integer value); +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, + acpi_integer value); static acpi_status -acpi_ex_setup_region ( - union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset); - +acpi_ex_setup_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset); /******************************************************************************* * @@ -89,27 +81,25 @@ acpi_ex_setup_region ( ******************************************************************************/ static acpi_status -acpi_ex_setup_region ( - union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset) +acpi_ex_setup_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset) { - acpi_status status = AE_OK; - union acpi_operand_object *rgn_desc; - - - ACPI_FUNCTION_TRACE_U32 ("ex_setup_region", field_datum_byte_offset); + acpi_status status = AE_OK; + union acpi_operand_object *rgn_desc; + ACPI_FUNCTION_TRACE_U32("ex_setup_region", field_datum_byte_offset); rgn_desc = obj_desc->common_field.region_obj; /* We must have a valid region */ - if (ACPI_GET_OBJECT_TYPE (rgn_desc) != ACPI_TYPE_REGION) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Needed Region, found type %X (%s)\n", - ACPI_GET_OBJECT_TYPE (rgn_desc), - acpi_ut_get_object_type_name (rgn_desc))); + if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Needed Region, found type %X (%s)\n", + ACPI_GET_OBJECT_TYPE(rgn_desc), + acpi_ut_get_object_type_name(rgn_desc))); - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* @@ -117,26 +107,25 @@ acpi_ex_setup_region ( * evaluate them now and save the results. */ if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_region_arguments (rgn_desc); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ds_get_region_arguments(rgn_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { /* SMBus has a non-linear address space */ - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - #ifdef ACPI_UNDER_DEVELOPMENT /* * If the Field access is any_acc, we can now compute the optimal * access (because we know know the length of the parent region) */ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } #endif @@ -147,56 +136,64 @@ acpi_ex_setup_region ( * (Region length is specified in bytes) */ if (rgn_desc->region.length < (obj_desc->common_field.base_byte_offset + - field_datum_byte_offset + - obj_desc->common_field.access_byte_width)) { + field_datum_byte_offset + + obj_desc->common_field. + access_byte_width)) { if (acpi_gbl_enable_interpreter_slack) { /* * Slack mode only: We will go ahead and allow access to this * field if it is within the region length rounded up to the next * access width boundary. */ - if (ACPI_ROUND_UP (rgn_desc->region.length, - obj_desc->common_field.access_byte_width) >= - (obj_desc->common_field.base_byte_offset + - (acpi_native_uint) obj_desc->common_field.access_byte_width + - field_datum_byte_offset)) { - return_ACPI_STATUS (AE_OK); + if (ACPI_ROUND_UP(rgn_desc->region.length, + obj_desc->common_field. + access_byte_width) >= + (obj_desc->common_field.base_byte_offset + + (acpi_native_uint) obj_desc->common_field. + access_byte_width + field_datum_byte_offset)) { + return_ACPI_STATUS(AE_OK); } } - if (rgn_desc->region.length < obj_desc->common_field.access_byte_width) { + if (rgn_desc->region.length < + obj_desc->common_field.access_byte_width) { /* * This is the case where the access_type (acc_word, etc.) is wider * than the region itself. For example, a region of length one * byte, and a field with Dword access specified. */ - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)\n", - acpi_ut_get_node_name (obj_desc->common_field.node), - obj_desc->common_field.access_byte_width, - acpi_ut_get_node_name (rgn_desc->region.node), - rgn_desc->region.length)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)\n", + acpi_ut_get_node_name(obj_desc-> + common_field. + node), + obj_desc->common_field. + access_byte_width, + acpi_ut_get_node_name(rgn_desc-> + region.node), + rgn_desc->region.length)); } /* * Offset rounded up to next multiple of field width * exceeds region length, indicate an error */ - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)\n", - acpi_ut_get_node_name (obj_desc->common_field.node), - obj_desc->common_field.base_byte_offset, - field_datum_byte_offset, obj_desc->common_field.access_byte_width, - acpi_ut_get_node_name (rgn_desc->region.node), - rgn_desc->region.length)); - - return_ACPI_STATUS (AE_AML_REGION_LIMIT); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)\n", + acpi_ut_get_node_name(obj_desc->common_field. + node), + obj_desc->common_field.base_byte_offset, + field_datum_byte_offset, + obj_desc->common_field.access_byte_width, + acpi_ut_get_node_name(rgn_desc->region.node), + rgn_desc->region.length)); + + return_ACPI_STATUS(AE_AML_REGION_LIMIT); } - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_access_region @@ -216,27 +213,23 @@ acpi_ex_setup_region ( ******************************************************************************/ acpi_status -acpi_ex_access_region ( - union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer *value, - u32 function) +acpi_ex_access_region(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 function) { - acpi_status status; - union acpi_operand_object *rgn_desc; - acpi_physical_address address; - - - ACPI_FUNCTION_TRACE ("ex_access_region"); + acpi_status status; + union acpi_operand_object *rgn_desc; + acpi_physical_address address; + ACPI_FUNCTION_TRACE("ex_access_region"); /* * Ensure that the region operands are fully evaluated and verify * the validity of the request */ - status = acpi_ex_setup_region (obj_desc, field_datum_byte_offset); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* @@ -248,50 +241,53 @@ acpi_ex_access_region ( */ rgn_desc = obj_desc->common_field.region_obj; address = rgn_desc->region.address + - obj_desc->common_field.base_byte_offset + - field_datum_byte_offset; + obj_desc->common_field.base_byte_offset + field_datum_byte_offset; if ((function & ACPI_IO_MASK) == ACPI_READ) { - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[READ]")); - } - else { - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[WRITE]")); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]")); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]")); } - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_BFIELD, - " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n", - acpi_ut_get_region_name (rgn_desc->region.space_id), - rgn_desc->region.space_id, - obj_desc->common_field.access_byte_width, - obj_desc->common_field.base_byte_offset, - field_datum_byte_offset, - ACPI_FORMAT_UINT64 (address))); + ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD, + " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n", + acpi_ut_get_region_name(rgn_desc->region. + space_id), + rgn_desc->region.space_id, + obj_desc->common_field.access_byte_width, + obj_desc->common_field.base_byte_offset, + field_datum_byte_offset, + ACPI_FORMAT_UINT64(address))); /* Invoke the appropriate address_space/op_region handler */ - status = acpi_ev_address_space_dispatch (rgn_desc, function, - address, - ACPI_MUL_8 (obj_desc->common_field.access_byte_width), value); + status = acpi_ev_address_space_dispatch(rgn_desc, function, + address, + ACPI_MUL_8(obj_desc-> + common_field. + access_byte_width), + value); - if (ACPI_FAILURE (status)) { + if (ACPI_FAILURE(status)) { if (status == AE_NOT_IMPLEMENTED) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Region %s(%X) not implemented\n", - acpi_ut_get_region_name (rgn_desc->region.space_id), - rgn_desc->region.space_id)); - } - else if (status == AE_NOT_EXIST) { - ACPI_REPORT_ERROR (( - "Region %s(%X) has no handler\n", - acpi_ut_get_region_name (rgn_desc->region.space_id), - rgn_desc->region.space_id)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Region %s(%X) not implemented\n", + acpi_ut_get_region_name(rgn_desc-> + region. + space_id), + rgn_desc->region.space_id)); + } else if (status == AE_NOT_EXIST) { + ACPI_REPORT_ERROR(("Region %s(%X) has no handler\n", + acpi_ut_get_region_name(rgn_desc-> + region. + space_id), + rgn_desc->region.space_id)); } } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_register_overflow @@ -310,9 +306,8 @@ acpi_ex_access_region ( ******************************************************************************/ static u8 -acpi_ex_register_overflow ( - union acpi_operand_object *obj_desc, - acpi_integer value) +acpi_ex_register_overflow(union acpi_operand_object *obj_desc, + acpi_integer value) { if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) { @@ -336,7 +331,6 @@ acpi_ex_register_overflow ( return (FALSE); } - /******************************************************************************* * * FUNCTION: acpi_ex_field_datum_io @@ -356,18 +350,14 @@ acpi_ex_register_overflow ( ******************************************************************************/ static acpi_status -acpi_ex_field_datum_io ( - union acpi_operand_object *obj_desc, - u32 field_datum_byte_offset, - acpi_integer *value, - u32 read_write) +acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, + u32 field_datum_byte_offset, + acpi_integer * value, u32 read_write) { - acpi_status status; - acpi_integer local_value; - - - ACPI_FUNCTION_TRACE_U32 ("ex_field_datum_io", field_datum_byte_offset); + acpi_status status; + acpi_integer local_value; + ACPI_FUNCTION_TRACE_U32("ex_field_datum_io", field_datum_byte_offset); if (read_write == ACPI_READ) { if (!value) { @@ -392,16 +382,16 @@ acpi_ex_field_datum_io ( * index_field - Write to an Index Register, then read/write from/to a * Data Register */ - switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_BUFFER_FIELD: /* * If the buffer_field arguments have not been previously evaluated, * evaluate them now and save the results. */ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_buffer_field_arguments (obj_desc); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ds_get_buffer_field_arguments(obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } @@ -410,47 +400,50 @@ acpi_ex_field_datum_io ( * Copy the data from the source buffer. * Length is the field width in bytes. */ - ACPI_MEMCPY (value, - (obj_desc->buffer_field.buffer_obj)->buffer.pointer + - obj_desc->buffer_field.base_byte_offset + - field_datum_byte_offset, - obj_desc->common_field.access_byte_width); - } - else { + ACPI_MEMCPY(value, + (obj_desc->buffer_field.buffer_obj)->buffer. + pointer + + obj_desc->buffer_field.base_byte_offset + + field_datum_byte_offset, + obj_desc->common_field.access_byte_width); + } else { /* * Copy the data to the target buffer. * Length is the field width in bytes. */ - ACPI_MEMCPY ((obj_desc->buffer_field.buffer_obj)->buffer.pointer + - obj_desc->buffer_field.base_byte_offset + - field_datum_byte_offset, - value, obj_desc->common_field.access_byte_width); + ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer. + pointer + + obj_desc->buffer_field.base_byte_offset + + field_datum_byte_offset, value, + obj_desc->common_field.access_byte_width); } status = AE_OK; break; - case ACPI_TYPE_LOCAL_BANK_FIELD: /* * Ensure that the bank_value is not beyond the capacity of * the register */ - if (acpi_ex_register_overflow (obj_desc->bank_field.bank_obj, - (acpi_integer) obj_desc->bank_field.value)) { - return_ACPI_STATUS (AE_AML_REGISTER_LIMIT); + if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj, + (acpi_integer) obj_desc-> + bank_field.value)) { + return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); } /* * For bank_fields, we must write the bank_value to the bank_register * (itself a region_field) before we can access the data. */ - status = acpi_ex_insert_into_field (obj_desc->bank_field.bank_obj, - &obj_desc->bank_field.value, - sizeof (obj_desc->bank_field.value)); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = + acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj, + &obj_desc->bank_field.value, + sizeof(obj_desc->bank_field. + value)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* @@ -460,90 +453,92 @@ acpi_ex_field_datum_io ( /*lint -fallthrough */ - case ACPI_TYPE_LOCAL_REGION_FIELD: /* * For simple region_fields, we just directly access the owning * Operation Region. */ - status = acpi_ex_access_region (obj_desc, field_datum_byte_offset, value, - read_write); + status = + acpi_ex_access_region(obj_desc, field_datum_byte_offset, + value, read_write); break; - case ACPI_TYPE_LOCAL_INDEX_FIELD: - /* * Ensure that the index_value is not beyond the capacity of * the register */ - if (acpi_ex_register_overflow (obj_desc->index_field.index_obj, - (acpi_integer) obj_desc->index_field.value)) { - return_ACPI_STATUS (AE_AML_REGISTER_LIMIT); + if (acpi_ex_register_overflow(obj_desc->index_field.index_obj, + (acpi_integer) obj_desc-> + index_field.value)) { + return_ACPI_STATUS(AE_AML_REGISTER_LIMIT); } /* Write the index value to the index_register (itself a region_field) */ field_datum_byte_offset += obj_desc->index_field.value; - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "Write to Index Register: Value %8.8X\n", - field_datum_byte_offset)); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Write to Index Register: Value %8.8X\n", + field_datum_byte_offset)); - status = acpi_ex_insert_into_field (obj_desc->index_field.index_obj, - &field_datum_byte_offset, - sizeof (field_datum_byte_offset)); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = + acpi_ex_insert_into_field(obj_desc->index_field.index_obj, + &field_datum_byte_offset, + sizeof(field_datum_byte_offset)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "I/O to Data Register: value_ptr %p\n", - value)); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "I/O to Data Register: value_ptr %p\n", + value)); if (read_write == ACPI_READ) { /* Read the datum from the data_register */ - status = acpi_ex_extract_from_field (obj_desc->index_field.data_obj, - value, sizeof (acpi_integer)); - } - else { + status = + acpi_ex_extract_from_field(obj_desc->index_field. + data_obj, value, + sizeof(acpi_integer)); + } else { /* Write the datum to the data_register */ - status = acpi_ex_insert_into_field (obj_desc->index_field.data_obj, - value, sizeof (acpi_integer)); + status = + acpi_ex_insert_into_field(obj_desc->index_field. + data_obj, value, + sizeof(acpi_integer)); } break; - default: - ACPI_REPORT_ERROR (("Wrong object type in field I/O %X\n", - ACPI_GET_OBJECT_TYPE (obj_desc))); + ACPI_REPORT_ERROR(("Wrong object type in field I/O %X\n", + ACPI_GET_OBJECT_TYPE(obj_desc))); status = AE_AML_INTERNAL; break; } - if (ACPI_SUCCESS (status)) { + if (ACPI_SUCCESS(status)) { if (read_write == ACPI_READ) { - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "Value Read %8.8X%8.8X, Width %d\n", - ACPI_FORMAT_UINT64 (*value), - obj_desc->common_field.access_byte_width)); - } - else { - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "Value Written %8.8X%8.8X, Width %d\n", - ACPI_FORMAT_UINT64 (*value), - obj_desc->common_field.access_byte_width)); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Value Read %8.8X%8.8X, Width %d\n", + ACPI_FORMAT_UINT64(*value), + obj_desc->common_field. + access_byte_width)); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Value Written %8.8X%8.8X, Width %d\n", + ACPI_FORMAT_UINT64(*value), + obj_desc->common_field. + access_byte_width)); } } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_write_with_update_rule @@ -560,19 +555,16 @@ acpi_ex_field_datum_io ( ******************************************************************************/ acpi_status -acpi_ex_write_with_update_rule ( - union acpi_operand_object *obj_desc, - acpi_integer mask, - acpi_integer field_value, - u32 field_datum_byte_offset) +acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, + acpi_integer mask, + acpi_integer field_value, + u32 field_datum_byte_offset) { - acpi_status status = AE_OK; - acpi_integer merged_value; - acpi_integer current_value; - - - ACPI_FUNCTION_TRACE_U32 ("ex_write_with_update_rule", mask); + acpi_status status = AE_OK; + acpi_integer merged_value; + acpi_integer current_value; + ACPI_FUNCTION_TRACE_U32("ex_write_with_update_rule", mask); /* Start with the new bits */ @@ -583,22 +575,27 @@ acpi_ex_write_with_update_rule ( if (mask != ACPI_INTEGER_MAX) { /* Decode the update rule */ - switch (obj_desc->common_field.field_flags & AML_FIELD_UPDATE_RULE_MASK) { + switch (obj_desc->common_field. + field_flags & AML_FIELD_UPDATE_RULE_MASK) { case AML_FIELD_UPDATE_PRESERVE: /* * Check if update rule needs to be applied (not if mask is all * ones) The left shift drops the bits we want to ignore. */ - if ((~mask << (ACPI_MUL_8 (sizeof (mask)) - - ACPI_MUL_8 (obj_desc->common_field.access_byte_width))) != 0) { + if ((~mask << (ACPI_MUL_8(sizeof(mask)) - + ACPI_MUL_8(obj_desc->common_field. + access_byte_width))) != 0) { /* * Read the current contents of the byte/word/dword containing * the field, and merge with the new field value. */ - status = acpi_ex_field_datum_io (obj_desc, field_datum_byte_offset, - ¤t_value, ACPI_READ); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = + acpi_ex_field_datum_io(obj_desc, + field_datum_byte_offset, + ¤t_value, + ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } merged_value |= (current_value & ~mask); @@ -621,30 +618,31 @@ acpi_ex_write_with_update_rule ( default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "write_with_update_rule: Unknown update_rule setting: %X\n", - (obj_desc->common_field.field_flags & AML_FIELD_UPDATE_RULE_MASK))); - return_ACPI_STATUS (AE_AML_OPERAND_VALUE); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "write_with_update_rule: Unknown update_rule setting: %X\n", + (obj_desc->common_field. + field_flags & + AML_FIELD_UPDATE_RULE_MASK))); + return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } } - ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, - "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n", - ACPI_FORMAT_UINT64 (mask), - field_datum_byte_offset, - obj_desc->common_field.access_byte_width, - ACPI_FORMAT_UINT64 (field_value), - ACPI_FORMAT_UINT64 (merged_value))); + ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, + "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(mask), + field_datum_byte_offset, + obj_desc->common_field.access_byte_width, + ACPI_FORMAT_UINT64(field_value), + ACPI_FORMAT_UINT64(merged_value))); /* Write the merged value */ - status = acpi_ex_field_datum_io (obj_desc, field_datum_byte_offset, - &merged_value, ACPI_WRITE); + status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset, + &merged_value, ACPI_WRITE); - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ex_extract_from_field @@ -660,54 +658,54 @@ acpi_ex_write_with_update_rule ( ******************************************************************************/ acpi_status -acpi_ex_extract_from_field ( - union acpi_operand_object *obj_desc, - void *buffer, - u32 buffer_length) +acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, + void *buffer, u32 buffer_length) { - acpi_status status; - acpi_integer raw_datum; - acpi_integer merged_datum; - u32 field_offset = 0; - u32 buffer_offset = 0; - u32 buffer_tail_bits; - u32 datum_count; - u32 field_datum_count; - u32 i; - - - ACPI_FUNCTION_TRACE ("ex_extract_from_field"); - + acpi_status status; + acpi_integer raw_datum; + acpi_integer merged_datum; + u32 field_offset = 0; + u32 buffer_offset = 0; + u32 buffer_tail_bits; + u32 datum_count; + u32 field_datum_count; + u32 i; + + ACPI_FUNCTION_TRACE("ex_extract_from_field"); /* Validate target buffer and clear it */ - if (buffer_length < ACPI_ROUND_BITS_UP_TO_BYTES ( - obj_desc->common_field.bit_length)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field size %X (bits) is too large for buffer (%X)\n", - obj_desc->common_field.bit_length, buffer_length)); + if (buffer_length < + ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Field size %X (bits) is too large for buffer (%X)\n", + obj_desc->common_field.bit_length, + buffer_length)); - return_ACPI_STATUS (AE_BUFFER_OVERFLOW); + return_ACPI_STATUS(AE_BUFFER_OVERFLOW); } - ACPI_MEMSET (buffer, 0, buffer_length); + ACPI_MEMSET(buffer, 0, buffer_length); /* Compute the number of datums (access width data items) */ - datum_count = ACPI_ROUND_UP_TO ( - obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - field_datum_count = ACPI_ROUND_UP_TO ( - obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.access_bit_width); + datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field. + access_bit_width); /* Priming read from the field */ - status = acpi_ex_field_datum_io (obj_desc, field_offset, &raw_datum, ACPI_READ); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = + acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum, + ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - merged_datum = raw_datum >> obj_desc->common_field.start_field_bit_offset; + merged_datum = + raw_datum >> obj_desc->common_field.start_field_bit_offset; /* Read the rest of the field */ @@ -715,17 +713,17 @@ acpi_ex_extract_from_field ( /* Get next input datum from the field */ field_offset += obj_desc->common_field.access_byte_width; - status = acpi_ex_field_datum_io (obj_desc, field_offset, - &raw_datum, ACPI_READ); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ex_field_datum_io(obj_desc, field_offset, + &raw_datum, ACPI_READ); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* Merge with previous datum if necessary */ merged_datum |= raw_datum << - (obj_desc->common_field.access_bit_width - - obj_desc->common_field.start_field_bit_offset); + (obj_desc->common_field.access_bit_width - + obj_desc->common_field.start_field_bit_offset); if (i == datum_count) { break; @@ -733,32 +731,32 @@ acpi_ex_extract_from_field ( /* Write merged datum to target buffer */ - ACPI_MEMCPY (((char *) buffer) + buffer_offset, &merged_datum, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); + ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); buffer_offset += obj_desc->common_field.access_byte_width; - merged_datum = raw_datum >> obj_desc->common_field.start_field_bit_offset; + merged_datum = + raw_datum >> obj_desc->common_field.start_field_bit_offset; } /* Mask off any extra bits in the last datum */ buffer_tail_bits = obj_desc->common_field.bit_length % - obj_desc->common_field.access_bit_width; + obj_desc->common_field.access_bit_width; if (buffer_tail_bits) { - merged_datum &= ACPI_MASK_BITS_ABOVE (buffer_tail_bits); + merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); } /* Write the last datum to the buffer */ - ACPI_MEMCPY (((char *) buffer) + buffer_offset, &merged_datum, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); + ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_insert_into_field @@ -774,53 +772,54 @@ acpi_ex_extract_from_field ( ******************************************************************************/ acpi_status -acpi_ex_insert_into_field ( - union acpi_operand_object *obj_desc, - void *buffer, - u32 buffer_length) +acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, + void *buffer, u32 buffer_length) { - acpi_status status; - acpi_integer mask; - acpi_integer merged_datum; - acpi_integer raw_datum = 0; - u32 field_offset = 0; - u32 buffer_offset = 0; - u32 buffer_tail_bits; - u32 datum_count; - u32 field_datum_count; - u32 i; - - - ACPI_FUNCTION_TRACE ("ex_insert_into_field"); - + acpi_status status; + acpi_integer mask; + acpi_integer merged_datum; + acpi_integer raw_datum = 0; + u32 field_offset = 0; + u32 buffer_offset = 0; + u32 buffer_tail_bits; + u32 datum_count; + u32 field_datum_count; + u32 i; + + ACPI_FUNCTION_TRACE("ex_insert_into_field"); /* Validate input buffer */ - if (buffer_length < ACPI_ROUND_BITS_UP_TO_BYTES ( - obj_desc->common_field.bit_length)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field size %X (bits) is too large for buffer (%X)\n", - obj_desc->common_field.bit_length, buffer_length)); + if (buffer_length < + ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Field size %X (bits) is too large for buffer (%X)\n", + obj_desc->common_field.bit_length, + buffer_length)); - return_ACPI_STATUS (AE_BUFFER_OVERFLOW); + return_ACPI_STATUS(AE_BUFFER_OVERFLOW); } /* Compute the number of datums (access width data items) */ - mask = ACPI_MASK_BITS_BELOW (obj_desc->common_field.start_field_bit_offset); - datum_count = ACPI_ROUND_UP_TO (obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - field_datum_count = ACPI_ROUND_UP_TO (obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.access_bit_width); + mask = + ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); + datum_count = + ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + field_datum_count = + ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field.start_field_bit_offset, + obj_desc->common_field.access_bit_width); /* Get initial Datum from the input buffer */ - ACPI_MEMCPY (&raw_datum, buffer, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); + ACPI_MEMCPY(&raw_datum, buffer, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); - merged_datum = raw_datum << obj_desc->common_field.start_field_bit_offset; + merged_datum = + raw_datum << obj_desc->common_field.start_field_bit_offset; /* Write the entire field */ @@ -828,18 +827,19 @@ acpi_ex_insert_into_field ( /* Write merged datum to the target field */ merged_datum &= mask; - status = acpi_ex_write_with_update_rule (obj_desc, mask, - merged_datum, field_offset); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ex_write_with_update_rule(obj_desc, mask, + merged_datum, + field_offset); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* Start new output datum by merging with previous input datum */ field_offset += obj_desc->common_field.access_byte_width; merged_datum = raw_datum >> - (obj_desc->common_field.access_bit_width - - obj_desc->common_field.start_field_bit_offset); + (obj_desc->common_field.access_bit_width - + obj_desc->common_field.start_field_bit_offset); mask = ACPI_INTEGER_MAX; if (i == datum_count) { @@ -849,28 +849,28 @@ acpi_ex_insert_into_field ( /* Get the next input datum from the buffer */ buffer_offset += obj_desc->common_field.access_byte_width; - ACPI_MEMCPY (&raw_datum, ((char *) buffer) + buffer_offset, - ACPI_MIN(obj_desc->common_field.access_byte_width, - buffer_length - buffer_offset)); - merged_datum |= raw_datum << obj_desc->common_field.start_field_bit_offset; + ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset, + ACPI_MIN(obj_desc->common_field.access_byte_width, + buffer_length - buffer_offset)); + merged_datum |= + raw_datum << obj_desc->common_field.start_field_bit_offset; } /* Mask off any extra bits in the last datum */ buffer_tail_bits = (obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset) % - obj_desc->common_field.access_bit_width; + obj_desc->common_field.start_field_bit_offset) % + obj_desc->common_field.access_bit_width; if (buffer_tail_bits) { - mask &= ACPI_MASK_BITS_ABOVE (buffer_tail_bits); + mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits); } /* Write the last datum to the field */ merged_datum &= mask; - status = acpi_ex_write_with_update_rule (obj_desc, - mask, merged_datum, field_offset); + status = acpi_ex_write_with_update_rule(obj_desc, + mask, merged_datum, + field_offset); - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - - |