diff options
Diffstat (limited to 'drivers/acpi/executer/exconvrt.c')
| -rw-r--r-- | drivers/acpi/executer/exconvrt.c | 311 |
1 files changed, 141 insertions, 170 deletions
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c index 21331625e66e..04e5194989a6 100644 --- a/drivers/acpi/executer/exconvrt.c +++ b/drivers/acpi/executer/exconvrt.c @@ -41,24 +41,17 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acinterp.h> #include <acpi/amlcode.h> - #define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exconvrt") +ACPI_MODULE_NAME("exconvrt") /* Local prototypes */ - static u32 -acpi_ex_convert_to_ascii ( - acpi_integer integer, - u16 base, - u8 *string, - u8 max_length); - +acpi_ex_convert_to_ascii(acpi_integer integer, + u16 base, u8 * string, u8 max_length); /******************************************************************************* * @@ -76,29 +69,25 @@ acpi_ex_convert_to_ascii ( ******************************************************************************/ acpi_status -acpi_ex_convert_to_integer ( - union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc, - u32 flags) +acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, + union acpi_operand_object **result_desc, u32 flags) { - union acpi_operand_object *return_desc; - u8 *pointer; - acpi_integer result; - u32 i; - u32 count; - acpi_status status; - + union acpi_operand_object *return_desc; + u8 *pointer; + acpi_integer result; + u32 i; + u32 count; + acpi_status status; - ACPI_FUNCTION_TRACE_PTR ("ex_convert_to_integer", obj_desc); + ACPI_FUNCTION_TRACE_PTR("ex_convert_to_integer", obj_desc); - - switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_INTEGER: /* No conversion necessary */ *result_desc = obj_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); case ACPI_TYPE_BUFFER: case ACPI_TYPE_STRING: @@ -106,11 +95,11 @@ acpi_ex_convert_to_integer ( /* Note: Takes advantage of common buffer/string fields */ pointer = obj_desc->buffer.pointer; - count = obj_desc->buffer.length; + count = obj_desc->buffer.length; break; default: - return_ACPI_STATUS (AE_TYPE); + return_ACPI_STATUS(AE_TYPE); } /* @@ -126,7 +115,7 @@ acpi_ex_convert_to_integer ( /* String conversion is different than Buffer conversion */ - switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_STRING: /* @@ -135,19 +124,18 @@ acpi_ex_convert_to_integer ( * of ACPI 3.0) is that the to_integer() operator allows both decimal * and hexadecimal strings (hex prefixed with "0x"). */ - status = acpi_ut_strtoul64 ((char *) pointer, flags, &result); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_strtoul64((char *)pointer, flags, &result); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } break; - case ACPI_TYPE_BUFFER: /* Check for zero-length buffer */ if (!count) { - return_ACPI_STATUS (AE_AML_BUFFER_LIMIT); + return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); } /* Transfer no more than an integer's worth of data */ @@ -170,7 +158,6 @@ acpi_ex_convert_to_integer ( } break; - default: /* No other types can get here */ break; @@ -178,20 +165,19 @@ acpi_ex_convert_to_integer ( /* Create a new integer */ - return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Save the Result */ return_desc->integer.value = result; - acpi_ex_truncate_for32bit_table (return_desc); + acpi_ex_truncate_for32bit_table(return_desc); *result_desc = return_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_convert_to_buffer @@ -207,25 +193,21 @@ acpi_ex_convert_to_integer ( ******************************************************************************/ acpi_status -acpi_ex_convert_to_buffer ( - union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc) +acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, + union acpi_operand_object **result_desc) { - union acpi_operand_object *return_desc; - u8 *new_buf; + union acpi_operand_object *return_desc; + u8 *new_buf; + ACPI_FUNCTION_TRACE_PTR("ex_convert_to_buffer", obj_desc); - ACPI_FUNCTION_TRACE_PTR ("ex_convert_to_buffer", obj_desc); - - - switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_BUFFER: /* No conversion necessary */ *result_desc = obj_desc; - return_ACPI_STATUS (AE_OK); - + return_ACPI_STATUS(AE_OK); case ACPI_TYPE_INTEGER: @@ -233,20 +215,20 @@ acpi_ex_convert_to_buffer ( * Create a new Buffer object. * Need enough space for one integer */ - return_desc = acpi_ut_create_buffer_object (acpi_gbl_integer_byte_width); + return_desc = + acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Copy the integer to the buffer, LSB first */ new_buf = return_desc->buffer.pointer; - ACPI_MEMCPY (new_buf, - &obj_desc->integer.value, - acpi_gbl_integer_byte_width); + ACPI_MEMCPY(new_buf, + &obj_desc->integer.value, + acpi_gbl_integer_byte_width); break; - case ACPI_TYPE_STRING: /* @@ -258,32 +240,31 @@ acpi_ex_convert_to_buffer ( * ASL/AML code that depends on the null being transferred to the new * buffer. */ - return_desc = acpi_ut_create_buffer_object ( - (acpi_size) obj_desc->string.length + 1); + return_desc = acpi_ut_create_buffer_object((acpi_size) + obj_desc->string. + length + 1); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } /* Copy the string to the buffer */ new_buf = return_desc->buffer.pointer; - ACPI_STRNCPY ((char *) new_buf, (char *) obj_desc->string.pointer, - obj_desc->string.length); + ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer, + obj_desc->string.length); break; - default: - return_ACPI_STATUS (AE_TYPE); + return_ACPI_STATUS(AE_TYPE); } /* Mark buffer initialized */ return_desc->common.flags |= AOPOBJ_DATA_VALID; *result_desc = return_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_convert_to_ascii @@ -300,24 +281,19 @@ acpi_ex_convert_to_buffer ( ******************************************************************************/ static u32 -acpi_ex_convert_to_ascii ( - acpi_integer integer, - u16 base, - u8 *string, - u8 data_width) +acpi_ex_convert_to_ascii(acpi_integer integer, + u16 base, u8 * string, u8 data_width) { - acpi_integer digit; - acpi_native_uint i; - acpi_native_uint j; - acpi_native_uint k = 0; - acpi_native_uint hex_length; - acpi_native_uint decimal_length; - u32 remainder; - u8 supress_zeros; - - - ACPI_FUNCTION_ENTRY (); + acpi_integer digit; + acpi_native_uint i; + acpi_native_uint j; + acpi_native_uint k = 0; + acpi_native_uint hex_length; + acpi_native_uint decimal_length; + u32 remainder; + u8 supress_zeros; + ACPI_FUNCTION_ENTRY(); switch (base) { case 10: @@ -339,7 +315,7 @@ acpi_ex_convert_to_ascii ( break; } - supress_zeros = TRUE; /* No leading zeros */ + supress_zeros = TRUE; /* No leading zeros */ remainder = 0; for (i = decimal_length; i > 0; i--) { @@ -347,7 +323,8 @@ acpi_ex_convert_to_ascii ( digit = integer; for (j = 0; j < i; j++) { - (void) acpi_ut_short_divide (digit, 10, &digit, &remainder); + (void)acpi_ut_short_divide(digit, 10, &digit, + &remainder); } /* Handle leading zeros */ @@ -367,11 +344,13 @@ acpi_ex_convert_to_ascii ( /* hex_length: 2 ascii hex chars per data byte */ - hex_length = (acpi_native_uint) ACPI_MUL_2 (data_width); - for (i = 0, j = (hex_length-1); i < hex_length; i++, j--) { + hex_length = (acpi_native_uint) ACPI_MUL_2(data_width); + for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { /* Get one hex digit, most significant digits first */ - string[k] = (u8) acpi_ut_hex_to_ascii_char (integer, ACPI_MUL_4 (j)); + string[k] = + (u8) acpi_ut_hex_to_ascii_char(integer, + ACPI_MUL_4(j)); k++; } break; @@ -387,15 +366,14 @@ acpi_ex_convert_to_ascii ( * Finally, null terminate the string and return the length */ if (!k) { - string [0] = ACPI_ASCII_ZERO; + string[0] = ACPI_ASCII_ZERO; k = 1; } - string [k] = 0; + string[k] = 0; return ((u32) k); } - /******************************************************************************* * * FUNCTION: acpi_ex_convert_to_string @@ -412,30 +390,25 @@ acpi_ex_convert_to_ascii ( ******************************************************************************/ acpi_status -acpi_ex_convert_to_string ( - union acpi_operand_object *obj_desc, - union acpi_operand_object **result_desc, - u32 type) +acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, + union acpi_operand_object ** result_desc, u32 type) { - union acpi_operand_object *return_desc; - u8 *new_buf; - u32 i; - u32 string_length = 0; - u16 base = 16; - u8 separator = ','; + union acpi_operand_object *return_desc; + u8 *new_buf; + u32 i; + u32 string_length = 0; + u16 base = 16; + u8 separator = ','; + ACPI_FUNCTION_TRACE_PTR("ex_convert_to_string", obj_desc); - ACPI_FUNCTION_TRACE_PTR ("ex_convert_to_string", obj_desc); - - - switch (ACPI_GET_OBJECT_TYPE (obj_desc)) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_STRING: /* No conversion necessary */ *result_desc = obj_desc; - return_ACPI_STATUS (AE_OK); - + return_ACPI_STATUS(AE_OK); case ACPI_TYPE_INTEGER: @@ -452,7 +425,7 @@ acpi_ex_convert_to_string ( /* Two hex string characters for each integer byte */ - string_length = ACPI_MUL_2 (acpi_gbl_integer_byte_width); + string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width); break; } @@ -460,31 +433,33 @@ acpi_ex_convert_to_string ( * Create a new String * Need enough space for one ASCII integer (plus null terminator) */ - return_desc = acpi_ut_create_string_object ((acpi_size) string_length); + return_desc = + acpi_ut_create_string_object((acpi_size) string_length); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } new_buf = return_desc->buffer.pointer; /* Convert integer to string */ - string_length = acpi_ex_convert_to_ascii (obj_desc->integer.value, base, - new_buf, acpi_gbl_integer_byte_width); + string_length = + acpi_ex_convert_to_ascii(obj_desc->integer.value, base, + new_buf, + acpi_gbl_integer_byte_width); /* Null terminate at the correct place */ return_desc->string.length = string_length; - new_buf [string_length] = 0; + new_buf[string_length] = 0; break; - case ACPI_TYPE_BUFFER: /* Setup string length, base, and separator */ switch (type) { - case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */ + case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */ /* * From ACPI: "If Data is a buffer, it is converted to a string of * decimal values separated by commas." @@ -498,11 +473,9 @@ acpi_ex_convert_to_string ( for (i = 0; i < obj_desc->buffer.length; i++) { if (obj_desc->buffer.pointer[i] >= 100) { string_length += 4; - } - else if (obj_desc->buffer.pointer[i] >= 10) { + } else if (obj_desc->buffer.pointer[i] >= 10) { string_length += 3; - } - else { + } else { string_length += 2; } } @@ -518,7 +491,7 @@ acpi_ex_convert_to_string ( string_length = (obj_desc->buffer.length * 3); break; - case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */ + case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */ /* * From ACPI: "If Data is a buffer, it is converted to a string of * hexadecimal values separated by commas." @@ -527,7 +500,7 @@ acpi_ex_convert_to_string ( break; default: - return_ACPI_STATUS (AE_BAD_PARAMETER); + return_ACPI_STATUS(AE_BAD_PARAMETER); } /* @@ -535,15 +508,16 @@ acpi_ex_convert_to_string ( * (-1 because of extra separator included in string_length from above) */ string_length--; - if (string_length > ACPI_MAX_STRING_CONVERSION) /* ACPI limit */ { - return_ACPI_STATUS (AE_AML_STRING_LIMIT); + if (string_length > ACPI_MAX_STRING_CONVERSION) { /* ACPI limit */ + return_ACPI_STATUS(AE_AML_STRING_LIMIT); } /* Create a new string object and string buffer */ - return_desc = acpi_ut_create_string_object ((acpi_size) string_length); + return_desc = + acpi_ut_create_string_object((acpi_size) string_length); if (!return_desc) { - return_ACPI_STATUS (AE_NO_MEMORY); + return_ACPI_STATUS(AE_NO_MEMORY); } new_buf = return_desc->buffer.pointer; @@ -553,10 +527,11 @@ acpi_ex_convert_to_string ( * (separated by commas or spaces) */ for (i = 0; i < obj_desc->buffer.length; i++) { - new_buf += acpi_ex_convert_to_ascii ( - (acpi_integer) obj_desc->buffer.pointer[i], base, - new_buf, 1); - *new_buf++ = separator; /* each separated by a comma or space */ + new_buf += acpi_ex_convert_to_ascii((acpi_integer) + obj_desc->buffer. + pointer[i], base, + new_buf, 1); + *new_buf++ = separator; /* each separated by a comma or space */ } /* @@ -568,14 +543,13 @@ acpi_ex_convert_to_string ( break; default: - return_ACPI_STATUS (AE_TYPE); + return_ACPI_STATUS(AE_TYPE); } *result_desc = return_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ex_convert_to_target_type @@ -592,17 +566,14 @@ acpi_ex_convert_to_string ( ******************************************************************************/ acpi_status -acpi_ex_convert_to_target_type ( - acpi_object_type destination_type, - union acpi_operand_object *source_desc, - union acpi_operand_object **result_desc, - struct acpi_walk_state *walk_state) +acpi_ex_convert_to_target_type(acpi_object_type destination_type, + union acpi_operand_object *source_desc, + union acpi_operand_object **result_desc, + struct acpi_walk_state *walk_state) { - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("ex_convert_to_target_type"); + acpi_status status = AE_OK; + ACPI_FUNCTION_TRACE("ex_convert_to_target_type"); /* Default behavior */ @@ -612,10 +583,10 @@ acpi_ex_convert_to_target_type ( * If required by the target, * perform implicit conversion on the source before we store it. */ - switch (GET_CURRENT_ARG_TYPE (walk_state->op_info->runtime_args)) { + switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) { case ARGI_SIMPLE_TARGET: case ARGI_FIXED_TARGET: - case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ + case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ switch (destination_type) { case ACPI_TYPE_LOCAL_REGION_FIELD: @@ -627,17 +598,19 @@ acpi_ex_convert_to_target_type ( default: /* No conversion allowed for these types */ - if (destination_type != ACPI_GET_OBJECT_TYPE (source_desc)) { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Explicit operator, will store (%s) over existing type (%s)\n", - acpi_ut_get_object_type_name (source_desc), - acpi_ut_get_type_name (destination_type))); + if (destination_type != + ACPI_GET_OBJECT_TYPE(source_desc)) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Explicit operator, will store (%s) over existing type (%s)\n", + acpi_ut_get_object_type_name + (source_desc), + acpi_ut_get_type_name + (destination_type))); status = AE_TYPE; } } break; - case ARGI_TARGETREF: switch (destination_type) { @@ -649,55 +622,55 @@ acpi_ex_convert_to_target_type ( * These types require an Integer operand. We can convert * a Buffer or a String to an Integer if necessary. */ - status = acpi_ex_convert_to_integer (source_desc, result_desc, - 16); + status = + acpi_ex_convert_to_integer(source_desc, result_desc, + 16); break; - case ACPI_TYPE_STRING: /* * The operand must be a String. We can convert an * Integer or Buffer if necessary */ - status = acpi_ex_convert_to_string (source_desc, result_desc, - ACPI_IMPLICIT_CONVERT_HEX); + status = + acpi_ex_convert_to_string(source_desc, result_desc, + ACPI_IMPLICIT_CONVERT_HEX); break; - case ACPI_TYPE_BUFFER: /* * The operand must be a Buffer. We can convert an * Integer or String if necessary */ - status = acpi_ex_convert_to_buffer (source_desc, result_desc); + status = + acpi_ex_convert_to_buffer(source_desc, result_desc); break; - default: - ACPI_REPORT_ERROR (("Bad destination type during conversion: %X\n", - destination_type)); + ACPI_REPORT_ERROR(("Bad destination type during conversion: %X\n", destination_type)); status = AE_AML_INTERNAL; break; } break; - case ARGI_REFERENCE: /* * create_xxxx_field cases - we are storing the field object into the name */ break; - default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Unknown Target type ID 0x%X Op %s dest_type %s\n", - GET_CURRENT_ARG_TYPE (walk_state->op_info->runtime_args), - walk_state->op_info->name, acpi_ut_get_type_name (destination_type))); - - ACPI_REPORT_ERROR (("Bad Target Type (ARGI): %X\n", - GET_CURRENT_ARG_TYPE (walk_state->op_info->runtime_args))) - status = AE_AML_INTERNAL; + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unknown Target type ID 0x%X Op %s dest_type %s\n", + GET_CURRENT_ARG_TYPE(walk_state->op_info-> + runtime_args), + walk_state->op_info->name, + acpi_ut_get_type_name(destination_type))); + + ACPI_REPORT_ERROR(("Bad Target Type (ARGI): %X\n", + GET_CURRENT_ARG_TYPE(walk_state->op_info-> + runtime_args))) + status = AE_AML_INTERNAL; } /* @@ -710,7 +683,5 @@ acpi_ex_convert_to_target_type ( status = AE_OK; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - - |