diff options
Diffstat (limited to 'drivers/acpi/resources/rsio.c')
| -rw-r--r-- | drivers/acpi/resources/rsio.c | 197 |
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 ( struct acpi_resource *output_struct = (void *) *output_buffer; u16 temp16 = 0; u8 temp8 = 0; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_io); + acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( + struct acpi_resource_io); ACPI_FUNCTION_TRACE ("rs_io_resource"); - /* - * The number of bytes consumed are Constant - */ + /* The number of bytes consumed are Constant */ + *bytes_consumed = 8; output_struct->id = ACPI_RSTYPE_IO; - /* - * Check Decode - */ + /* Check Decode */ + buffer += 1; temp8 = *buffer; output_struct->data.io.io_decode = temp8 & 0x01; - /* - * Check min_base Address - */ + /* Check min_base Address */ + buffer += 1; ACPI_MOVE_16_TO_16 (&temp16, buffer); output_struct->data.io.min_base_address = temp16; - /* - * Check max_base Address - */ + /* Check max_base Address */ + buffer += 2; ACPI_MOVE_16_TO_16 (&temp16, buffer); output_struct->data.io.max_base_address = temp16; - /* - * Check Base alignment - */ + /* Check Base alignment */ + buffer += 2; temp8 = *buffer; output_struct->data.io.alignment = temp8; - /* - * Check range_length - */ + /* Check range_length */ + buffer += 1; temp8 = *buffer; output_struct->data.io.range_length = temp8; - /* - * Set the Length parameter - */ + /* Set the Length parameter */ + output_struct->length = (u32) struct_size; - /* - * Return the final size of the structure - */ + /* Return the final size of the structure */ + *structure_size = struct_size; return_ACPI_STATUS (AE_OK); } @@ -179,43 +172,39 @@ acpi_rs_fixed_io_resource ( struct acpi_resource *output_struct = (void *) *output_buffer; u16 temp16 = 0; u8 temp8 = 0; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_fixed_io); + acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( + struct acpi_resource_fixed_io); ACPI_FUNCTION_TRACE ("rs_fixed_io_resource"); - /* - * The number of bytes consumed are Constant - */ + /* The number of bytes consumed are Constant */ + *bytes_consumed = 4; output_struct->id = ACPI_RSTYPE_FIXED_IO; - /* - * Check Range Base Address - */ + /* Check Range Base Address */ + buffer += 1; ACPI_MOVE_16_TO_16 (&temp16, buffer); output_struct->data.fixed_io.base_address = temp16; - /* - * Check range_length - */ + /* Check range_length */ + buffer += 2; temp8 = *buffer; output_struct->data.fixed_io.range_length = temp8; - /* - * Set the Length parameter - */ + /* Set the Length parameter */ + output_struct->length = (u32) struct_size; - /* - * Return the final size of the structure - */ + /* Return the final size of the structure */ + *structure_size = struct_size; return_ACPI_STATUS (AE_OK); } @@ -251,55 +240,48 @@ acpi_rs_io_stream ( ACPI_FUNCTION_TRACE ("rs_io_stream"); - /* - * The descriptor field is static - */ + /* The descriptor field is static */ + *buffer = 0x47; buffer += 1; - /* - * Io Information Byte - */ + /* Io Information Byte */ + temp8 = (u8) (linked_list->data.io.io_decode & 0x01); *buffer = temp8; buffer += 1; - /* - * Set the Range minimum base address - */ + /* Set the Range minimum base address */ + temp16 = (u16) linked_list->data.io.min_base_address; ACPI_MOVE_16_TO_16 (buffer, &temp16); buffer += 2; - /* - * Set the Range maximum base address - */ + /* Set the Range maximum base address */ + temp16 = (u16) linked_list->data.io.max_base_address; ACPI_MOVE_16_TO_16 (buffer, &temp16); buffer += 2; - /* - * Set the base alignment - */ + /* Set the base alignment */ + temp8 = (u8) linked_list->data.io.alignment; *buffer = temp8; buffer += 1; - /* - * Set the range length - */ + /* Set the range length */ + temp8 = (u8) linked_list->data.io.range_length; *buffer = temp8; buffer += 1; - /* - * Return the number of bytes consumed in this operation - */ + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); return_ACPI_STATUS (AE_OK); } @@ -335,32 +317,28 @@ acpi_rs_fixed_io_stream ( ACPI_FUNCTION_TRACE ("rs_fixed_io_stream"); - /* - * The descriptor field is static - */ + /* The descriptor field is static */ + *buffer = 0x4B; buffer += 1; - /* - * Set the Range base address - */ + /* Set the Range base address */ + temp16 = (u16) linked_list->data.fixed_io.base_address; ACPI_MOVE_16_TO_16 (buffer, &temp16); buffer += 2; - /* - * Set the range length - */ + /* Set the range length */ + temp8 = (u8) linked_list->data.fixed_io.range_length; *buffer = temp8; buffer += 1; - /* - * Return the number of bytes consumed in this operation - */ + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); return_ACPI_STATUS (AE_OK); } @@ -399,21 +377,20 @@ acpi_rs_dma_resource ( u8 temp8 = 0; u8 index; u8 i; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_dma); + acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( + struct acpi_resource_dma); ACPI_FUNCTION_TRACE ("rs_dma_resource"); - /* - * The number of bytes consumed are Constant - */ + /* The number of bytes consumed are Constant */ + *bytes_consumed = 3; output_struct->id = ACPI_RSTYPE_DMA; - /* - * Point to the 8-bits of Byte 1 - */ + /* Point to the 8-bits of Byte 1 */ + buffer += 1; temp8 = *buffer; @@ -430,46 +407,40 @@ acpi_rs_dma_resource ( output_struct->data.dma.number_of_channels = i; if (i > 0) { - /* - * Calculate the structure size based upon the number of interrupts - */ + /* Calculate the structure size based upon the number of interrupts */ + struct_size += ((acpi_size) i - 1) * 4; } - /* - * Point to Byte 2 - */ + /* Point to Byte 2 */ + buffer += 1; temp8 = *buffer; - /* - * Check for transfer preference (Bits[1:0]) - */ + /* Check for transfer preference (Bits[1:0]) */ + output_struct->data.dma.transfer = temp8 & 0x03; if (0x03 == output_struct->data.dma.transfer) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid DMA.Transfer preference (3)\n")); + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid DMA.Transfer preference (3)\n")); return_ACPI_STATUS (AE_BAD_DATA); } - /* - * Get bus master preference (Bit[2]) - */ + /* Get bus master preference (Bit[2]) */ + output_struct->data.dma.bus_master = (temp8 >> 2) & 0x01; - /* - * Get channel speed support (Bits[6:5]) - */ + /* Get channel speed support (Bits[6:5]) */ + output_struct->data.dma.type = (temp8 >> 5) & 0x03; - /* - * Set the Length parameter - */ + /* Set the Length parameter */ + output_struct->length = (u32) struct_size; - /* - * Return the final size of the structure - */ + /* Return the final size of the structure */ + *structure_size = struct_size; return_ACPI_STATUS (AE_OK); } @@ -506,16 +477,14 @@ acpi_rs_dma_stream ( ACPI_FUNCTION_TRACE ("rs_dma_stream"); - /* - * The descriptor field is static - */ + /* The descriptor field is static */ + *buffer = 0x2A; buffer += 1; temp8 = 0; - /* - * Loop through all of the Channels and set the mask bits - */ + /* Loop through all of the Channels and set the mask bits */ + for (index = 0; index < linked_list->data.dma.number_of_channels; index++) { @@ -526,9 +495,8 @@ acpi_rs_dma_stream ( *buffer = temp8; buffer += 1; - /* - * Set the DMA Info - */ + /* Set the DMA Info */ + temp8 = (u8) ((linked_list->data.dma.type & 0x03) << 5); temp8 |= ((linked_list->data.dma.bus_master & 0x01) << 2); temp8 |= (linked_list->data.dma.transfer & 0x03); @@ -536,9 +504,8 @@ acpi_rs_dma_stream ( *buffer = temp8; buffer += 1; - /* - * Return the number of bytes consumed in this operation - */ + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); return_ACPI_STATUS (AE_OK); } |
