******************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
/*******************************************************************************
*
- * FUNCTION: acpi_rs_get_irq
- *
- * PARAMETERS: Aml - Pointer to the AML resource descriptor
- * aml_resource_length - Length of the resource from the AML header
- * Resource - Where the internal resource is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
- * internal resource descriptor, simplifying bitflags and handling
- * alignment and endian issues if necessary.
+ * acpi_rs_get_irq
*
******************************************************************************/
-acpi_status
-acpi_rs_get_irq(union aml_resource *aml,
- u16 aml_resource_length, struct acpi_resource *resource)
-{
- u16 temp16 = 0;
- u32 interrupt_count = 0;
- u32 i;
- u32 resource_length;
-
- ACPI_FUNCTION_TRACE("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)},
/* Get the IRQ mask (bytes 1:2) */
- ACPI_MOVE_16_TO_16(&temp16, &aml->irq.irq_mask);
-
- /* Decode the IRQ bits (up to 16 possible) */
-
- for (i = 0; i < 16; i++) {
- if ((temp16 >> i) & 0x01) {
- resource->data.irq.interrupts[interrupt_count] = i;
- interrupt_count++;
- }
- }
-
- /* Zero interrupts is valid */
-
- resource_length = 0;
- resource->data.irq.interrupt_count = interrupt_count;
- if (interrupt_count > 0) {
- /* Calculate the structure size based upon the number of interrupts */
-
- resource_length = (u32) (interrupt_count - 1) * 4;
- }
-
- /* Get Flags (Byte 3) if it is used */
-
- if (aml_resource_length == 3) {
- /* Check for HE, LL interrupts */
-
- switch (aml->irq.flags & 0x09) {
- case 0x01: /* HE */
- resource->data.irq.triggering = ACPI_EDGE_SENSITIVE;
- resource->data.irq.polarity = ACPI_ACTIVE_HIGH;
- break;
-
- case 0x08: /* LL */
- resource->data.irq.triggering = ACPI_LEVEL_SENSITIVE;
- resource->data.irq.polarity = 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",
- aml->irq.flags));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- /* Get Sharing flag */
-
- resource->data.irq.sharable = (aml->irq.flags >> 3) & 0x01;
- } else {
- /*
- * Default configuration: assume Edge Sensitive, Active High,
- * Non-Sharable as per the ACPI Specification
- */
- resource->data.irq.triggering = ACPI_EDGE_SENSITIVE;
- resource->data.irq.polarity = ACPI_ACTIVE_HIGH;
- resource->data.irq.sharable = ACPI_EXCLUSIVE;
- }
-
- /* Complete the resource header */
-
- resource->type = ACPI_RESOURCE_TYPE_IRQ;
- resource->length =
- resource_length + ACPI_SIZEOF_RESOURCE(struct acpi_resource_irq);
- return_ACPI_STATUS(AE_OK);
-}
+ {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
+ AML_OFFSET(irq.irq_mask),
+ ACPI_RS_OFFSET(data.irq.interrupt_count)},
+
+ /* Set default flags (others are zero) */
+
+ {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE,
+ 1},
+
+ /* All done if no flag byte present in descriptor */
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
+
+ /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
+
+ {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}
+};
/*******************************************************************************
*
- * FUNCTION: acpi_rs_set_irq
- *
- * PARAMETERS: Resource - Pointer to the resource descriptor
- * Aml - Where the AML descriptor is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- * external AML resource descriptor.
+ * acpi_rs_set_irq
*
******************************************************************************/
-acpi_status
-acpi_rs_set_irq(struct acpi_resource *resource, union aml_resource *aml)
-{
- acpi_size descriptor_length;
- u16 irq_mask;
- u8 i;
-
- ACPI_FUNCTION_TRACE("rs_set_irq");
+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 */
- irq_mask = 0;
- for (i = 0; i < resource->data.irq.interrupt_count; i++) {
- irq_mask |= (1 << resource->data.irq.interrupts[i]);
- }
+ {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 */
- /* Set the interrupt mask */
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
+ AML_OFFSET(irq.flags),
+ 0},
- ACPI_MOVE_16_TO_16(&aml->irq.irq_mask, &irq_mask);
+ {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},
/*
- * The descriptor field is set based upon whether a third byte is
- * needed to contain the IRQ Information.
+ * Check if the flags byte is necessary. Not needed if the flags are:
+ * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
*/
- if ((resource->data.irq.triggering == ACPI_EDGE_SENSITIVE) &&
- (resource->data.irq.polarity == ACPI_ACTIVE_HIGH) &&
- (resource->data.irq.sharable == ACPI_EXCLUSIVE)) {
- /* irq_no_flags() descriptor can be used */
-
- descriptor_length = sizeof(struct aml_resource_irq_noflags);
- } else {
- /* Irq() descriptor must be used */
-
- descriptor_length = sizeof(struct aml_resource_irq);
-
- /* Set the IRQ Info byte */
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE},
- aml->irq.flags = (u8)
- ((resource->data.irq.sharable & 0x01) << 4);
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.polarity),
+ ACPI_ACTIVE_HIGH},
- if (ACPI_LEVEL_SENSITIVE == resource->data.irq.triggering &&
- ACPI_ACTIVE_LOW == resource->data.irq.polarity) {
- aml->irq.flags |= 0x08;
- } else {
- aml->irq.flags |= 0x01;
- }
- }
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.sharable),
+ ACPI_EXCLUSIVE},
- /* Complete the AML descriptor header */
+ /* irq_no_flags() descriptor can be used */
- acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_IRQ, descriptor_length,
- aml);
- return_ACPI_STATUS(AE_OK);
-}
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
+};
/*******************************************************************************
*
- * FUNCTION: acpi_rs_get_ext_irq
- *
- * PARAMETERS: Aml - Pointer to the AML resource descriptor
- * aml_resource_length - Length of the resource from the AML header
- * Resource - Where the internal resource is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
- * internal resource descriptor, simplifying bitflags and handling
- * alignment and endian issues if necessary.
+ * acpi_rs_convert_ext_irq
*
******************************************************************************/
-acpi_status
-acpi_rs_get_ext_irq(union aml_resource *aml,
- u16 aml_resource_length, struct acpi_resource *resource)
-{
- char *out_resource_string;
- u8 temp8;
-
- ACPI_FUNCTION_TRACE("rs_get_ext_irq");
-
- /* Get the flag bits */
+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)},
- temp8 = aml->extended_irq.flags;
- resource->data.extended_irq.producer_consumer = temp8 & 0x01;
- resource->data.extended_irq.polarity = (temp8 >> 2) & 0x01;
- resource->data.extended_irq.sharable = (temp8 >> 3) & 0x01;
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
+ sizeof(struct aml_resource_extended_irq),
+ 0},
- /*
- * 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
- */
- resource->data.extended_irq.triggering =
- (temp8 & 0x2) ? ACPI_EDGE_SENSITIVE : ACPI_LEVEL_SENSITIVE;
+ /* Flag bits */
- /* Get the IRQ Table length (Byte4) */
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
+ AML_OFFSET(extended_irq.flags),
+ 0},
- temp8 = aml->extended_irq.table_length;
- resource->data.extended_irq.interrupt_count = temp8;
- if (temp8 < 1) {
- /* Must have at least one IRQ */
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
+ AML_OFFSET(extended_irq.flags),
+ 1},
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
- }
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
+ AML_OFFSET(extended_irq.flags),
+ 2},
- /*
- * Add any additional structure size to properly calculate
- * the next pointer at the end of this function
- */
- resource->length = (temp8 - 1) * 4;
- out_resource_string = ACPI_CAST_PTR(char,
- (&resource->data.extended_irq.
- interrupts[0] + temp8));
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+ AML_OFFSET(extended_irq.flags),
+ 3},
- /* Get every IRQ in the table, each is 32 bits */
+ /* IRQ Table length (Byte4) */
- acpi_rs_move_data(resource->data.extended_irq.interrupts,
- aml->extended_irq.interrupt_number,
- (u16) temp8, ACPI_MOVE_TYPE_32_TO_32);
+ {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
+ AML_OFFSET(extended_irq.interrupt_count),
+ sizeof(u32)}
+ ,
- /* Get the optional resource_source (index and string) */
+ /* Copy every IRQ in the table, each is 32 bits */
- resource->length +=
- acpi_rs_get_resource_source(aml_resource_length,
- (acpi_size) resource->length +
- sizeof(struct
- aml_resource_extended_irq),
- &resource->data.extended_irq.
- resource_source, aml,
- out_resource_string);
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+ AML_OFFSET(extended_irq.interrupts[0]),
+ 0}
+ ,
- /* Complete the resource header */
+ /* Optional resource_source (Index and String) */
- resource->type = ACPI_RESOURCE_TYPE_EXTENDED_IRQ;
- resource->length +=
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_irq);
- return_ACPI_STATUS(AE_OK);
-}
+ {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_set_ext_irq
- *
- * PARAMETERS: Resource - Pointer to the resource descriptor
- * Aml - Where the AML descriptor is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- * external AML resource descriptor.
+ * acpi_rs_convert_dma
*
******************************************************************************/
-acpi_status
-acpi_rs_set_ext_irq(struct acpi_resource *resource, union aml_resource *aml)
-{
- acpi_size descriptor_length;
-
- ACPI_FUNCTION_TRACE("rs_set_ext_irq");
-
- /* Set the Interrupt vector flags */
-
- aml->extended_irq.flags = (u8)
- ((resource->data.extended_irq.producer_consumer & 0x01) |
- ((resource->data.extended_irq.sharable & 0x01) << 3) |
- ((resource->data.extended_irq.polarity & 0x1) << 2));
-
- /*
- * 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 (resource->data.extended_irq.triggering == ACPI_EDGE_SENSITIVE) {
- aml->extended_irq.flags |= 0x02;
- }
-
- /* Set the Interrupt table length */
-
- aml->extended_irq.table_length = (u8)
- resource->data.extended_irq.interrupt_count;
+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)},
- descriptor_length = (sizeof(struct aml_resource_extended_irq) - 4) +
- ((acpi_size) resource->data.extended_irq.interrupt_count *
- sizeof(u32));
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
+ sizeof(struct aml_resource_dma),
+ 0},
- /* Set each interrupt value */
+ /* Flags: transfer preference, bus mastering, channel speed */
- acpi_rs_move_data(aml->extended_irq.interrupt_number,
- resource->data.extended_irq.interrupts,
- (u16) resource->data.extended_irq.interrupt_count,
- ACPI_MOVE_TYPE_32_TO_32);
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
+ AML_OFFSET(dma.flags),
+ 0},
- /* Resource Source Index and Resource Source are optional */
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
+ AML_OFFSET(dma.flags),
+ 2},
- descriptor_length = acpi_rs_set_resource_source(aml, descriptor_length,
- &resource->data.
- extended_irq.
- resource_source);
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
+ AML_OFFSET(dma.flags),
+ 5},
- /* Complete the AML descriptor header */
+ /* DMA channel mask bits */
- acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_IRQ,
- descriptor_length, aml);
- return_ACPI_STATUS(AE_OK);
-}
+ {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
+ AML_OFFSET(dma.dma_channel_mask),
+ ACPI_RS_OFFSET(data.dma.channel_count)}
+};
projects / linux-2.6-omap-h63xx.git / blobdiff