diff options
Diffstat (limited to 'drivers/acpi/resources/rsio.c')
| -rw-r--r-- | drivers/acpi/resources/rsio.c | 341 |
1 files changed, 136 insertions, 205 deletions
diff --git a/drivers/acpi/resources/rsio.c b/drivers/acpi/resources/rsio.c index 972c746d37e..d53bbe89e85 100644 --- a/drivers/acpi/resources/rsio.c +++ b/drivers/acpi/resources/rsio.c @@ -41,13 +41,11 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acresrc.h> #define _COMPONENT ACPI_RESOURCES - ACPI_MODULE_NAME ("rsio") - +ACPI_MODULE_NAME("rsio") /******************************************************************************* * @@ -69,84 +67,70 @@ * number of bytes consumed from the byte stream. * ******************************************************************************/ - acpi_status -acpi_rs_io_resource ( - u8 *byte_stream_buffer, - acpi_size *bytes_consumed, - u8 **output_buffer, - acpi_size *structure_size) +acpi_rs_io_resource(u8 * byte_stream_buffer, + acpi_size * bytes_consumed, + u8 ** output_buffer, acpi_size * structure_size) { - u8 *buffer = byte_stream_buffer; - 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); + u8 *buffer = byte_stream_buffer; + 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_FUNCTION_TRACE("rs_io_resource"); - 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); + 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); + 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); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_rs_fixed_io_resource @@ -169,58 +153,49 @@ acpi_rs_io_resource ( ******************************************************************************/ acpi_status -acpi_rs_fixed_io_resource ( - u8 *byte_stream_buffer, - acpi_size *bytes_consumed, - u8 **output_buffer, - acpi_size *structure_size) +acpi_rs_fixed_io_resource(u8 * byte_stream_buffer, + acpi_size * bytes_consumed, + u8 ** output_buffer, acpi_size * structure_size) { - u8 *buffer = byte_stream_buffer; - 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); + u8 *buffer = byte_stream_buffer; + 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_FUNCTION_TRACE("rs_fixed_io_resource"); - 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); + 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); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_rs_io_stream @@ -238,72 +213,60 @@ acpi_rs_fixed_io_resource ( ******************************************************************************/ acpi_status -acpi_rs_io_stream ( - struct acpi_resource *linked_list, - u8 **output_buffer, - acpi_size *bytes_consumed) +acpi_rs_io_stream(struct acpi_resource *linked_list, + u8 ** output_buffer, acpi_size * bytes_consumed) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; + u8 *buffer = *output_buffer; + u16 temp16 = 0; + u8 temp8 = 0; + ACPI_FUNCTION_TRACE("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); + 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); + 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 - */ - *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); - return_ACPI_STATUS (AE_OK); -} + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + return_ACPI_STATUS(AE_OK); +} /******************************************************************************* * @@ -322,49 +285,40 @@ acpi_rs_io_stream ( ******************************************************************************/ acpi_status -acpi_rs_fixed_io_stream ( - struct acpi_resource *linked_list, - u8 **output_buffer, - acpi_size *bytes_consumed) +acpi_rs_fixed_io_stream(struct acpi_resource *linked_list, + u8 ** output_buffer, acpi_size * bytes_consumed) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; + u8 *buffer = *output_buffer; + u16 temp16 = 0; + u8 temp8 = 0; + ACPI_FUNCTION_TRACE("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); + 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 - */ - *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); - return_ACPI_STATUS (AE_OK); -} + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + return_ACPI_STATUS(AE_OK); +} /******************************************************************************* * @@ -388,32 +342,26 @@ acpi_rs_fixed_io_stream ( ******************************************************************************/ acpi_status -acpi_rs_dma_resource ( - u8 *byte_stream_buffer, - acpi_size *bytes_consumed, - u8 **output_buffer, - acpi_size *structure_size) +acpi_rs_dma_resource(u8 * byte_stream_buffer, + acpi_size * bytes_consumed, + u8 ** output_buffer, acpi_size * structure_size) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *) *output_buffer; - u8 temp8 = 0; - u8 index; - u8 i; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_dma); - + u8 *buffer = byte_stream_buffer; + struct acpi_resource *output_struct = (void *)*output_buffer; + u8 temp8 = 0; + u8 index; + u8 i; + acpi_size struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma); - ACPI_FUNCTION_TRACE ("rs_dma_resource"); + 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; @@ -430,51 +378,44 @@ 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")); - return_ACPI_STATUS (AE_BAD_DATA); + 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); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_rs_dma_stream @@ -492,33 +433,26 @@ acpi_rs_dma_resource ( ******************************************************************************/ acpi_status -acpi_rs_dma_stream ( - struct acpi_resource *linked_list, - u8 **output_buffer, - acpi_size *bytes_consumed) +acpi_rs_dma_stream(struct acpi_resource *linked_list, + u8 ** output_buffer, acpi_size * bytes_consumed) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 index; + u8 *buffer = *output_buffer; + u16 temp16 = 0; + u8 temp8 = 0; + u8 index; + ACPI_FUNCTION_TRACE("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++) { + index < linked_list->data.dma.number_of_channels; index++) { temp16 = (u16) linked_list->data.dma.channels[index]; temp8 |= 0x1 << temp16; } @@ -526,9 +460,8 @@ 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); @@ -536,10 +469,8 @@ acpi_rs_dma_stream ( *buffer = temp8; buffer += 1; - /* - * Return the number of bytes consumed in this operation - */ - *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); - return_ACPI_STATUS (AE_OK); -} + /* Return the number of bytes consumed in this operation */ + *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + return_ACPI_STATUS(AE_OK); +} |