Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 518 insertions, 0 deletions

diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c
new file mode 100644
index 00000000000..e49c1e030f9
--- /dev/null
+++ b/drivers/acpi/resources/rslist.c
@@ -0,0 +1,518 @@
+/*******************************************************************************
+ *
+ * Module Name: rslist - Linked list utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#include <acpi/acpi.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT          ACPI_RESOURCES
+	 ACPI_MODULE_NAME    ("rslist")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_rs_get_resource_type
+ *
+ * PARAMETERS:  resource_start_byte     - Byte 0 of a resource descriptor
+ *
+ * RETURN:      The Resource Type (Name) with no extraneous bits
+ *
+ * DESCRIPTION: Extract the Resource Type/Name from the first byte of
+ *              a resource descriptor.
+ *
+ ******************************************************************************/
+
+u8
+acpi_rs_get_resource_type (
+	u8                              resource_start_byte)
+{
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	/*
+	 * Determine if this is a small or large resource
+	 */
+	switch (resource_start_byte & ACPI_RDESC_TYPE_MASK) {
+	case ACPI_RDESC_TYPE_SMALL:
+
+		/*
+		 * Small Resource Type -- Only bits 6:3 are valid
+		 */
+		return ((u8) (resource_start_byte & ACPI_RDESC_SMALL_MASK));
+
+
+	case ACPI_RDESC_TYPE_LARGE:
+
+		/*
+		 * Large Resource Type -- All bits are valid
+		 */
+		return (resource_start_byte);
+
+
+	default:
+		/* No other types of resource descriptor */
+		break;
+	}
+
+	return (0xFF);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_rs_byte_stream_to_list
+ *
+ * PARAMETERS:  byte_stream_buffer      - Pointer to the resource byte stream
+ *              byte_stream_buffer_length - Length of byte_stream_buffer
+ *              output_buffer           - Pointer to the buffer that will
+ *                                        contain the output structures
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Takes the resource byte stream and parses it, creating a
+ *              linked list of resources in the caller's output buffer
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_byte_stream_to_list (
+	u8                              *byte_stream_buffer,
+	u32                             byte_stream_buffer_length,
+	u8                              *output_buffer)
+{
+	acpi_status                     status;
+	acpi_size                       bytes_parsed = 0;
+	u8                              resource_type = 0;
+	acpi_size                       bytes_consumed = 0;
+	u8                              *buffer = output_buffer;
+	acpi_size                       structure_size = 0;
+	u8                              end_tag_processed = FALSE;
+	struct acpi_resource            *resource;
+
+	ACPI_FUNCTION_TRACE ("rs_byte_stream_to_list");
+
+
+	while (bytes_parsed < byte_stream_buffer_length &&
+			!end_tag_processed) {
+		/*
+		 * The next byte in the stream is the resource type
+		 */
+		resource_type = acpi_rs_get_resource_type (*byte_stream_buffer);
+
+		switch (resource_type) {
+		case ACPI_RDESC_TYPE_MEMORY_24:
+			/*
+			 * 24-Bit Memory Resource
+			 */
+			status = acpi_rs_memory24_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_LARGE_VENDOR:
+			/*
+			 * Vendor Defined Resource
+			 */
+			status = acpi_rs_vendor_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_MEMORY_32:
+			/*
+			 * 32-Bit Memory Range Resource
+			 */
+			status = acpi_rs_memory32_range_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
+			/*
+			 * 32-Bit Fixed Memory Resource
+			 */
+			status = acpi_rs_fixed_memory32_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
+		case ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE:
+			/*
+			 * 64-Bit Address Resource
+			 */
+			status = acpi_rs_address64_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
+			/*
+			 * 32-Bit Address Resource
+			 */
+			status = acpi_rs_address32_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
+			/*
+			 * 16-Bit Address Resource
+			 */
+			status = acpi_rs_address16_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
+			/*
+			 * Extended IRQ
+			 */
+			status = acpi_rs_extended_irq_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_IRQ_FORMAT:
+			/*
+			 * IRQ Resource
+			 */
+			status = acpi_rs_irq_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_DMA_FORMAT:
+			/*
+			 * DMA Resource
+			 */
+			status = acpi_rs_dma_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_START_DEPENDENT:
+			/*
+			 * Start Dependent Functions Resource
+			 */
+			status = acpi_rs_start_depend_fns_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_END_DEPENDENT:
+			/*
+			 * End Dependent Functions Resource
+			 */
+			status = acpi_rs_end_depend_fns_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_IO_PORT:
+			/*
+			 * IO Port Resource
+			 */
+			status = acpi_rs_io_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_FIXED_IO_PORT:
+			/*
+			 * Fixed IO Port Resource
+			 */
+			status = acpi_rs_fixed_io_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_SMALL_VENDOR:
+			/*
+			 * Vendor Specific Resource
+			 */
+			status = acpi_rs_vendor_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		case ACPI_RDESC_TYPE_END_TAG:
+			/*
+			 * End Tag
+			 */
+			end_tag_processed = TRUE;
+			status = acpi_rs_end_tag_resource (byte_stream_buffer,
+					 &bytes_consumed, &buffer, &structure_size);
+			break;
+
+
+		default:
+			/*
+			 * Invalid/Unknown resource type
+			 */
+			status = AE_AML_INVALID_RESOURCE_TYPE;
+			break;
+		}
+
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+
+		/*
+		 * Update the return value and counter
+		 */
+		bytes_parsed += bytes_consumed;
+
+		/*
+		 * Set the byte stream to point to the next resource
+		 */
+		byte_stream_buffer += bytes_consumed;
+
+		/*
+		 * Set the Buffer to the next structure
+		 */
+		resource = ACPI_CAST_PTR (struct acpi_resource, buffer);
+		resource->length = (u32) ACPI_ALIGN_RESOURCE_SIZE (resource->length);
+		buffer += ACPI_ALIGN_RESOURCE_SIZE (structure_size);
+
+	} /*  end while */
+
+	/*
+	 * Check the reason for exiting the while loop
+	 */
+	if (!end_tag_processed) {
+		return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
+	}
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_rs_list_to_byte_stream
+ *
+ * PARAMETERS:  linked_list             - Pointer to the resource linked list
+ *              byte_steam_size_needed  - Calculated size of the byte stream
+ *                                        needed from calling
+ *                                        acpi_rs_get_byte_stream_length()
+ *                                        The size of the output_buffer is
+ *                                        guaranteed to be >=
+ *                                        byte_stream_size_needed
+ *              output_buffer           - Pointer to the buffer that will
+ *                                        contain the byte stream
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Takes the resource linked list and parses it, creating a
+ *              byte stream of resources in the caller's output buffer
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_list_to_byte_stream (
+	struct acpi_resource            *linked_list,
+	acpi_size                       byte_stream_size_needed,
+	u8                              *output_buffer)
+{
+	acpi_status                     status;
+	u8                              *buffer = output_buffer;
+	acpi_size                       bytes_consumed = 0;
+	u8                              done = FALSE;
+
+
+	ACPI_FUNCTION_TRACE ("rs_list_to_byte_stream");
+
+
+	while (!done) {
+		switch (linked_list->id) {
+		case ACPI_RSTYPE_IRQ:
+			/*
+			 * IRQ Resource
+			 */
+			status = acpi_rs_irq_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_DMA:
+			/*
+			 * DMA Resource
+			 */
+			status = acpi_rs_dma_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_START_DPF:
+			/*
+			 * Start Dependent Functions Resource
+			 */
+			status = acpi_rs_start_depend_fns_stream (linked_list,
+					  &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_END_DPF:
+			/*
+			 * End Dependent Functions Resource
+			 */
+			status = acpi_rs_end_depend_fns_stream (linked_list,
+					  &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_IO:
+			/*
+			 * IO Port Resource
+			 */
+			status = acpi_rs_io_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_FIXED_IO:
+			/*
+			 * Fixed IO Port Resource
+			 */
+			status = acpi_rs_fixed_io_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_VENDOR:
+			/*
+			 * Vendor Defined Resource
+			 */
+			status = acpi_rs_vendor_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_END_TAG:
+			/*
+			 * End Tag
+			 */
+			status = acpi_rs_end_tag_stream (linked_list, &buffer, &bytes_consumed);
+
+			/*
+			 * An End Tag indicates the end of the Resource Template
+			 */
+			done = TRUE;
+			break;
+
+		case ACPI_RSTYPE_MEM24:
+			/*
+			 * 24-Bit Memory Resource
+			 */
+			status = acpi_rs_memory24_stream (linked_list, &buffer, &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_MEM32:
+			/*
+			 * 32-Bit Memory Range Resource
+			 */
+			status = acpi_rs_memory32_range_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_FIXED_MEM32:
+			/*
+			 * 32-Bit Fixed Memory Resource
+			 */
+			status = acpi_rs_fixed_memory32_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_ADDRESS16:
+			/*
+			 * 16-Bit Address Descriptor Resource
+			 */
+			status = acpi_rs_address16_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_ADDRESS32:
+			/*
+			 * 32-Bit Address Descriptor Resource
+			 */
+			status = acpi_rs_address32_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_ADDRESS64:
+			/*
+			 * 64-Bit Address Descriptor Resource
+			 */
+			status = acpi_rs_address64_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		case ACPI_RSTYPE_EXT_IRQ:
+			/*
+			 * Extended IRQ Resource
+			 */
+			status = acpi_rs_extended_irq_stream (linked_list, &buffer,
+					 &bytes_consumed);
+			break;
+
+		default:
+			/*
+			 * If we get here, everything is out of sync,
+			 *  so exit with an error
+			 */
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid descriptor type (%X) in resource list\n",
+				linked_list->id));
+			status = AE_BAD_DATA;
+			break;
+
+		} /* switch (linked_list->Id) */
+
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+
+		/*
+		 * Set the Buffer to point to the open byte
+		 */
+		buffer += bytes_consumed;
+
+		/*
+		 * Point to the next object
+		 */
+		linked_list = ACPI_PTR_ADD (struct acpi_resource,
+				  linked_list, linked_list->length);
+	}
+
+	return_ACPI_STATUS (AE_OK);
+}
+