******************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acresrc.h>
#define _COMPONENT ACPI_RESOURCES
- ACPI_MODULE_NAME ("rsirq")
-
+ACPI_MODULE_NAME("rsirq")
/*******************************************************************************
*
- * FUNCTION: acpi_rs_irq_resource
- *
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
- *
- * RETURN: Status
- *
- * 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_rs_get_irq
*
******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_get_irq[7] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
+ ACPI_RS_SIZE(struct acpi_resource_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
-acpi_status
-acpi_rs_irq_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;
- u8 index;
- u8 i;
- acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_irq);
-
-
- ACPI_FUNCTION_TRACE ("rs_irq_resource");
-
-
- /*
- * The number of bytes consumed are contained in the descriptor
- * (Bits:0-1)
- */
- temp8 = *buffer;
- *bytes_consumed = (temp8 & 0x03) + 1;
- output_struct->id = ACPI_RSTYPE_IRQ;
-
- /*
- * Point to the 16-bits of Bytes 1 and 2
- */
- buffer += 1;
- ACPI_MOVE_16_TO_16 (&temp16, buffer);
+ /* Get the IRQ mask (bytes 1:2) */
- output_struct->data.irq.number_of_interrupts = 0;
+ {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
+ AML_OFFSET(irq.irq_mask),
+ ACPI_RS_OFFSET(data.irq.interrupt_count)},
- /* Decode the IRQ bits */
+ /* Set default flags (others are zero) */
- for (i = 0, index = 0; index < 16; index++) {
- if ((temp16 >> index) & 0x01) {
- output_struct->data.irq.interrupts[i] = index;
- i++;
- }
- }
+ {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE,
+ 1},
- /* Zero interrupts is valid */
+ /* All done if no flag byte present in descriptor */
- output_struct->data.irq.number_of_interrupts = i;
- if (i > 0) {
- /*
- * Calculate the structure size based upon the number of interrupts
- */
- struct_size += ((acpi_size) i - 1) * 4;
- }
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
- /*
- * Point to Byte 3 if it is used
- */
- if (4 == *bytes_consumed) {
- buffer += 2;
- temp8 = *buffer;
-
- /*
- * Check for HE, LL interrupts
- */
- switch (temp8 & 0x09) {
- case 0x01: /* HE */
- output_struct->data.irq.edge_level = ACPI_EDGE_SENSITIVE;
- output_struct->data.irq.active_high_low = ACPI_ACTIVE_HIGH;
- break;
-
- case 0x08: /* LL */
- output_struct->data.irq.edge_level = ACPI_LEVEL_SENSITIVE;
- output_struct->data.irq.active_high_low = ACPI_ACTIVE_LOW;
- break;
-
- default:
- /*
- * Only _LL and _HE polarity/trigger interrupts
- * are allowed (ACPI spec, section "IRQ Format")
- * so 0x00 and 0x09 are illegal.
- */
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Invalid interrupt polarity/trigger in resource list, %X\n", temp8));
- return_ACPI_STATUS (AE_BAD_DATA);
- }
-
- /*
- * Check for sharable
- */
- output_struct->data.irq.shared_exclusive = (temp8 >> 3) & 0x01;
- }
- else {
- /*
- * Assume Edge Sensitive, Active High, Non-Sharable
- * per ACPI Specification
- */
- output_struct->data.irq.edge_level = ACPI_EDGE_SENSITIVE;
- output_struct->data.irq.active_high_low = ACPI_ACTIVE_HIGH;
- output_struct->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
- }
+ /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
- /*
- * Set the Length parameter
- */
- output_struct->length = (u32) struct_size;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
+ AML_OFFSET(irq.flags),
+ 0},
- /*
- * Return the final size of the structure
- */
- *structure_size = struct_size;
- return_ACPI_STATUS (AE_OK);
-}
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
+ AML_OFFSET(irq.flags),
+ 3},
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+ AML_OFFSET(irq.flags),
+ 4}
+};
/*******************************************************************************
*
- * FUNCTION: acpi_rs_irq_stream
- *
- * PARAMETERS: linked_list - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * acpi_rs_set_irq
*
******************************************************************************/
-acpi_status
-acpi_rs_irq_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 IRqinfo_byte_needed;
+struct acpi_rsconvert_info acpi_rs_set_irq[9] = {
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
+ sizeof(struct aml_resource_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
+ /* Convert interrupt list to 16-bit IRQ bitmask */
- ACPI_FUNCTION_TRACE ("rs_irq_stream");
+ {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
+ AML_OFFSET(irq.irq_mask),
+ ACPI_RS_OFFSET(data.irq.interrupt_count)},
+ /* Set the flags byte by default */
- /*
- * The descriptor field is set based upon whether a third byte is
- * needed to contain the IRQ Information.
- */
- if (ACPI_EDGE_SENSITIVE == linked_list->data.irq.edge_level &&
- ACPI_ACTIVE_HIGH == linked_list->data.irq.active_high_low &&
- ACPI_EXCLUSIVE == linked_list->data.irq.shared_exclusive) {
- *buffer = 0x22;
- IRqinfo_byte_needed = FALSE;
- }
- else {
- *buffer = 0x23;
- IRqinfo_byte_needed = TRUE;
- }
-
- buffer += 1;
- temp16 = 0;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
+ AML_OFFSET(irq.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
+ AML_OFFSET(irq.flags),
+ 3},
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+ AML_OFFSET(irq.flags),
+ 4},
/*
- * Loop through all of the interrupts and set the mask bits
+ * Check if the flags byte is necessary. Not needed if the flags are:
+ * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
*/
- for(index = 0;
- index < linked_list->data.irq.number_of_interrupts;
- index++) {
- temp8 = (u8) linked_list->data.irq.interrupts[index];
- temp16 |= 0x1 << temp8;
- }
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE},
- ACPI_MOVE_16_TO_16 (buffer, &temp16);
- buffer += 2;
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.polarity),
+ ACPI_ACTIVE_HIGH},
- /*
- * Set the IRQ Info byte if needed.
- */
- if (IRqinfo_byte_needed) {
- temp8 = 0;
- temp8 = (u8) ((linked_list->data.irq.shared_exclusive &
- 0x01) << 4);
-
- if (ACPI_LEVEL_SENSITIVE == linked_list->data.irq.edge_level &&
- ACPI_ACTIVE_LOW == linked_list->data.irq.active_high_low) {
- temp8 |= 0x08;
- }
- else {
- temp8 |= 0x01;
- }
-
- *buffer = temp8;
- buffer += 1;
- }
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.sharable),
+ ACPI_EXCLUSIVE},
- /*
- * Return the number of bytes consumed in this operation
- */
- *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer);
- return_ACPI_STATUS (AE_OK);
-}
+ /* irq_no_flags() descriptor can be used */
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
+};
/*******************************************************************************
*
- * FUNCTION: acpi_rs_extended_irq_resource
- *
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
- *
- * RETURN: Status
- *
- * 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_rs_convert_ext_irq
*
******************************************************************************/
-acpi_status
-acpi_rs_extended_irq_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;
- u8 *temp_ptr;
- u8 index;
- acpi_size struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_ext_irq);
-
-
- ACPI_FUNCTION_TRACE ("rs_extended_irq_resource");
-
-
- /*
- * Point past the Descriptor to get the number of bytes consumed
- */
- buffer += 1;
- ACPI_MOVE_16_TO_16 (&temp16, buffer);
-
- /* Validate minimum descriptor length */
+struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
+ ACPI_RS_SIZE(struct acpi_resource_extended_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
- if (temp16 < 6) {
- return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
- }
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
+ sizeof(struct aml_resource_extended_irq),
+ 0},
- *bytes_consumed = temp16 + 3;
- output_struct->id = ACPI_RSTYPE_EXT_IRQ;
+ /* Flag bits */
- /*
- * Point to the Byte3
- */
- buffer += 2;
- temp8 = *buffer;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
+ AML_OFFSET(extended_irq.flags),
+ 0},
- output_struct->data.extended_irq.producer_consumer = temp8 & 0x01;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
+ AML_OFFSET(extended_irq.flags),
+ 1},
- /*
- * Check for Interrupt Mode
- *
- * The definition of an Extended IRQ changed between ACPI spec v1.0b
- * and ACPI spec 2.0 (section 6.4.3.6 in both).
- *
- * - Edge/Level are defined opposite in the table vs the headers
- */
- output_struct->data.extended_irq.edge_level =
- (temp8 & 0x2) ? ACPI_EDGE_SENSITIVE : ACPI_LEVEL_SENSITIVE;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
+ AML_OFFSET(extended_irq.flags),
+ 2},
- /*
- * Check Interrupt Polarity
- */
- output_struct->data.extended_irq.active_high_low = (temp8 >> 2) & 0x1;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+ AML_OFFSET(extended_irq.flags),
+ 3},
- /*
- * Check for sharable
- */
- output_struct->data.extended_irq.shared_exclusive = (temp8 >> 3) & 0x01;
+ /* IRQ Table length (Byte4) */
- /*
- * Point to Byte4 (IRQ Table length)
- */
- buffer += 1;
- temp8 = *buffer;
+ {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
+ AML_OFFSET(extended_irq.interrupt_count),
+ sizeof(u32)}
+ ,
- /* Must have at least one IRQ */
+ /* Copy every IRQ in the table, each is 32 bits */
- if (temp8 < 1) {
- return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
- }
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+ AML_OFFSET(extended_irq.interrupts[0]),
+ 0}
+ ,
- output_struct->data.extended_irq.number_of_interrupts = temp8;
-
- /*
- * Add any additional structure size to properly calculate
- * the next pointer at the end of this function
- */
- struct_size += (temp8 - 1) * 4;
-
- /*
- * Point to Byte5 (First IRQ Number)
- */
- buffer += 1;
-
- /*
- * Cycle through every IRQ in the table
- */
- for (index = 0; index < temp8; index++) {
- ACPI_MOVE_32_TO_32 (
- &output_struct->data.extended_irq.interrupts[index], buffer);
-
- /* Point to the next IRQ */
-
- buffer += 4;
- }
-
- /*
- * This will leave us pointing to the Resource Source Index
- * If it is present, then save it off and calculate the
- * pointer to where the null terminated string goes:
- * Each Interrupt takes 32-bits + the 5 bytes of the
- * stream that are default.
- *
- * Note: Some resource descriptors will have an additional null, so
- * we add 1 to the length.
- */
- if (*bytes_consumed >
- ((acpi_size) output_struct->data.extended_irq.number_of_interrupts * 4) + (5 + 1)) {
- /* Dereference the Index */
-
- temp8 = *buffer;
- output_struct->data.extended_irq.resource_source.index = (u32) temp8;
-
- /* Point to the String */
-
- buffer += 1;
-
- /*
- * Point the String pointer to the end of this structure.
- */
- output_struct->data.extended_irq.resource_source.string_ptr =
- (char *)((char *) output_struct + struct_size);
-
- temp_ptr = (u8 *) output_struct->data.extended_irq.resource_source.string_ptr;
-
- /* Copy the string into the buffer */
-
- index = 0;
- while (0x00 != *buffer) {
- *temp_ptr = *buffer;
-
- temp_ptr += 1;
- buffer += 1;
- index += 1;
- }
-
- /*
- * Add the terminating null
- */
- *temp_ptr = 0x00;
- output_struct->data.extended_irq.resource_source.string_length = index + 1;
-
- /*
- * In order for the struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ACPI_ROUND_UP_to_32_bITS (temp8);
- }
- else {
- output_struct->data.extended_irq.resource_source.index = 0x00;
- output_struct->data.extended_irq.resource_source.string_length = 0;
- output_struct->data.extended_irq.resource_source.string_ptr = NULL;
- }
-
- /*
- * Set the Length parameter
- */
- output_struct->length = (u32) struct_size;
-
- /*
- * Return the final size of the structure
- */
- *structure_size = struct_size;
- return_ACPI_STATUS (AE_OK);
-}
+ /* Optional resource_source (Index and String) */
+ {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
+ ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+ sizeof(struct aml_resource_extended_irq)}
+};
/*******************************************************************************
*
- * FUNCTION: acpi_rs_extended_irq_stream
- *
- * PARAMETERS: linked_list - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * acpi_rs_convert_dma
*
******************************************************************************/
-acpi_status
-acpi_rs_extended_irq_stream (
- struct acpi_resource *linked_list,
- u8 **output_buffer,
- acpi_size *bytes_consumed)
-{
- u8 *buffer = *output_buffer;
- u16 *length_field;
- u8 temp8 = 0;
- u8 index;
- char *temp_pointer = NULL;
+struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
+ ACPI_RS_SIZE(struct acpi_resource_dma),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
+ sizeof(struct aml_resource_dma),
+ 0},
- ACPI_FUNCTION_TRACE ("rs_extended_irq_stream");
+ /* Flags: transfer preference, bus mastering, channel speed */
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
+ AML_OFFSET(dma.flags),
+ 0},
- /*
- * The descriptor field is static
- */
- *buffer = 0x89;
- buffer += 1;
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
+ AML_OFFSET(dma.flags),
+ 2},
- /*
- * Set a pointer to the Length field - to be filled in later
- */
- length_field = ACPI_CAST_PTR (u16, buffer);
- buffer += 2;
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
+ AML_OFFSET(dma.flags),
+ 5},
- /*
- * Set the Interrupt vector flags
- */
- temp8 = (u8)(linked_list->data.extended_irq.producer_consumer & 0x01);
- temp8 |= ((linked_list->data.extended_irq.shared_exclusive & 0x01) << 3);
-
- /*
- * Set the Interrupt Mode
- *
- * The definition of an Extended IRQ changed between ACPI spec v1.0b
- * and ACPI spec 2.0 (section 6.4.3.6 in both). This code does not
- * implement the more restrictive definition of 1.0b
- *
- * - Edge/Level are defined opposite in the table vs the headers
- */
- if (ACPI_EDGE_SENSITIVE == linked_list->data.extended_irq.edge_level) {
- temp8 |= 0x2;
- }
-
- /*
- * Set the Interrupt Polarity
- */
- temp8 |= ((linked_list->data.extended_irq.active_high_low & 0x1) << 2);
-
- *buffer = temp8;
- buffer += 1;
-
- /*
- * Set the Interrupt table length
- */
- temp8 = (u8) linked_list->data.extended_irq.number_of_interrupts;
-
- *buffer = temp8;
- buffer += 1;
-
- for (index = 0; index < linked_list->data.extended_irq.number_of_interrupts;
- index++) {
- ACPI_MOVE_32_TO_32 (buffer,
- &linked_list->data.extended_irq.interrupts[index]);
- buffer += 4;
- }
-
- /*
- * Resource Source Index and Resource Source are optional
- */
- if (0 != linked_list->data.extended_irq.resource_source.string_length) {
- *buffer = (u8) linked_list->data.extended_irq.resource_source.index;
- buffer += 1;
-
- temp_pointer = (char *) buffer;
-
- /*
- * Copy the string
- */
- ACPI_STRCPY (temp_pointer,
- linked_list->data.extended_irq.resource_source.string_ptr);
-
- /*
- * Buffer needs to be set to the length of the sting + one for the
- * terminating null
- */
- buffer += (acpi_size)(ACPI_STRLEN (linked_list->data.extended_irq.resource_source.string_ptr) + 1);
- }
-
- /*
- * Return the number of bytes consumed in this operation
- */
- *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer);
-
- /*
- * Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
- */
- *length_field = (u16) (*bytes_consumed - 3);
- return_ACPI_STATUS (AE_OK);
-}
+ /* DMA channel mask bits */
+ {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
+ AML_OFFSET(dma.dma_channel_mask),
+ ACPI_RS_OFFSET(data.dma.channel_count)}
+};
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