patch-2.4.0-test3 linux/drivers/acpi/resources/rsio.c
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- Lines: 545
- Date:
Wed Jul 5 11:23:13 2000
- Orig file:
v2.4.0-test2/linux/drivers/acpi/resources/rsio.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.0-test2/linux/drivers/acpi/resources/rsio.c linux/drivers/acpi/resources/rsio.c
@@ -0,0 +1,544 @@
+/******************************************************************************
+ *
+ * Module Name: rsio - Acpi_rs_io_resource
+ * Acpi_rs_fixed_io_resource
+ * Acpi_rs_io_stream
+ * Acpi_rs_fixed_io_stream
+ * Acpi_rs_dma_resource
+ * Acpi_rs_dma_stream
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 R. Byron Moore
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include "acpi.h"
+
+#define _COMPONENT RESOURCE_MANAGER
+ MODULE_NAME ("rsio");
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_io_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the resource byte stream and fill out the appropriate
+ * structure pointed to by the Output_buffer. Return the
+ * number of bytes consumed from the byte stream.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_io_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ u8 *buffer = byte_stream_buffer;
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+ u32 struct_size = sizeof (IO_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * The number of bytes consumed are Constant
+ */
+ *bytes_consumed = 8;
+
+ output_struct->id = io;
+
+ /*
+ * Check Decode
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ output_struct->data.io.io_decode = temp8 & 0x01;
+
+ /*
+ * Check Min_base Address
+ */
+ buffer += 1;
+ temp16 = *(u16 *)buffer;
+
+ output_struct->data.io.min_base_address = temp16;
+
+ /*
+ * Check Max_base Address
+ */
+ buffer += 2;
+ temp16 = *(u16 *)buffer;
+
+ output_struct->data.io.max_base_address = temp16;
+
+ /*
+ * Check Base alignment
+ */
+ buffer += 2;
+ temp8 = *buffer;
+
+ output_struct->data.io.alignment = temp8;
+
+ /*
+ * Check Range_length
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ output_struct->data.io.range_length = temp8;
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_fixed_io_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the resource byte stream and fill out the appropriate
+ * structure pointed to by the Output_buffer. Return the
+ * number of bytes consumed from the byte stream.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_fixed_io_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ u8 *buffer = byte_stream_buffer;
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+ u32 struct_size = sizeof (FIXED_IO_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * The number of bytes consumed are Constant
+ */
+ *bytes_consumed = 4;
+
+ output_struct->id = fixed_io;
+
+ /*
+ * Check Range Base Address
+ */
+ buffer += 1;
+ MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
+
+ output_struct->data.fixed_io.base_address = temp16;
+
+ /*
+ * Check Range_length
+ */
+ buffer += 2;
+ temp8 = *buffer;
+
+ output_struct->data.fixed_io.range_length = temp8;
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_io_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_io_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x47;
+
+ buffer += 1;
+
+ /*
+ * Io Information Byte
+ */
+ temp8 = (u8) (linked_list->data.io.io_decode & 0x01);
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * Set the Range minimum base address
+ */
+ temp16 = (u16) linked_list->data.io.min_base_address;
+
+ *(u16 *)buffer = temp16;
+
+ buffer += 2;
+
+ /*
+ * Set the Range maximum base address
+ */
+ temp16 = (u16) linked_list->data.io.max_base_address;
+
+ *(u16 *)buffer = temp16;
+
+ buffer += 2;
+
+ /*
+ * Set the base alignment
+ */
+ temp8 = (u8) linked_list->data.io.alignment;
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * 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 = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_fixed_io_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_fixed_io_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x4B;
+
+ buffer += 1;
+
+ /*
+ * Set the Range base address
+ */
+ temp16 = (u16) linked_list->data.fixed_io.base_address;
+
+ *(u16 *)buffer = temp16;
+
+ buffer += 2;
+
+ /*
+ * 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 = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_dma_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the resource byte stream and fill out the appropriate
+ * structure pointed to by the Output_buffer. Return the
+ * number of bytes consumed from the byte stream.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_dma_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ u8 *buffer = byte_stream_buffer;
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u8 temp8 = 0;
+ u8 index;
+ u8 i;
+ u32 struct_size = sizeof(DMA_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * The number of bytes consumed are Constant
+ */
+ *bytes_consumed = 3;
+
+ output_struct->id = dma;
+
+ /*
+ * Point to the 8-bits of Byte 1
+ */
+ buffer += 1;
+
+ temp8 = *buffer;
+
+ /* Decode the IRQ bits */
+
+ for (i = 0, index = 0; index < 8; index++) {
+ if ((temp8 >> index) & 0x01) {
+ output_struct->data.dma.channels[i] = index;
+ i++;
+ }
+ }
+ output_struct->data.dma.number_of_channels = i;
+
+
+ /*
+ * Calculate the structure size based upon the number of interrupts
+ */
+ struct_size += (output_struct->data.dma.number_of_channels - 1) * 4;
+
+ /*
+ * Point to Byte 2
+ */
+ buffer += 1;
+
+ temp8 = *buffer;
+
+ /*
+ * Check for transfer preference (Bits[1:0])
+ */
+ output_struct->data.dma.transfer = temp8 & 0x03;
+
+ if (0x03 == output_struct->data.dma.transfer) {
+ return (AE_BAD_DATA);
+ }
+
+ /*
+ * Get bus master preference (Bit[2])
+ */
+ output_struct->data.dma.bus_master = (temp8 >> 2) & 0x01;
+
+ /*
+ * Get channel speed support (Bits[6:5])
+ */
+ output_struct->data.dma.type = (temp8 >> 5) & 0x03;
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_dma_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_dma_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+ u8 index;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x2A;
+
+ buffer += 1;
+
+ temp8 = 0;
+
+ /*
+ * Loop through all of the Channels and set the mask bits
+ */
+ for (index = 0;
+ index < linked_list->data.dma.number_of_channels;
+ index++)
+ {
+ temp16 = (u16) linked_list->data.dma.channels[index];
+ temp8 |= 0x1 << temp16;
+ }
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * 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);
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)