Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream

1 files changed, 266 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
new file mode 100644
index 000000000000..2e0256983aa6
--- /dev/null
+++ b/drivers/acpi/acpica/rsirq.c
@@ -0,0 +1,266 @@
+/*******************************************************************************
+ *
+ * Module Name: rsirq - IRQ resource descriptors
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * 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 "accommon.h"
+#include "acresrc.h"
+
+#define _COMPONENT          ACPI_RESOURCES
+ACPI_MODULE_NAME("rsirq")
+
+/*******************************************************************************
+ *
+ * acpi_rs_get_irq
+ *
+ ******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
+	{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_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},
+
+	/* Get the descriptor length (2 or 3 for IRQ descriptor) */
+
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
+	 AML_OFFSET(irq.descriptor_type),
+	 0},
+
+	/* 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}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_set_irq
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
+	/* Start with a default descriptor of length 3 */
+
+	{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_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 */
+
+	{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},
+
+	/*
+	 * All done if the output descriptor length is required to be 3
+	 * (i.e., optimization to 2 bytes cannot be attempted)
+	 */
+	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+	 ACPI_RS_OFFSET(data.irq.descriptor_length),
+	 3},
+
+	/* Set length to 2 bytes (no flags byte) */
+
+	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
+
+	/*
+	 * All done if the output descriptor length is required to be 2.
+	 *
+	 * TBD: Perhaps we should check for error if input flags are not
+	 * compatible with a 2-byte descriptor.
+	 */
+	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+	 ACPI_RS_OFFSET(data.irq.descriptor_length),
+	 2},
+
+	/* Reset length to 3 bytes (descriptor with flags byte) */
+
+	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
+
+	/*
+	 * Check if the flags byte is necessary. Not needed if the flags are:
+	 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
+	 */
+	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+	 ACPI_RS_OFFSET(data.irq.triggering),
+	 ACPI_EDGE_SENSITIVE},
+
+	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+	 ACPI_RS_OFFSET(data.irq.polarity),
+	 ACPI_ACTIVE_HIGH},
+
+	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+	 ACPI_RS_OFFSET(data.irq.sharable),
+	 ACPI_EXCLUSIVE},
+
+	/* We can optimize to a 2-byte irq_no_flags() descriptor */
+
+	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_ext_irq
+ *
+ ******************************************************************************/
+
+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)},
+
+	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
+	 sizeof(struct aml_resource_extended_irq),
+	 0},
+
+	/* Flag bits */
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
+	 AML_OFFSET(extended_irq.flags),
+	 0},
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
+	 AML_OFFSET(extended_irq.flags),
+	 1},
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
+	 AML_OFFSET(extended_irq.flags),
+	 2},
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+	 AML_OFFSET(extended_irq.flags),
+	 3},
+
+	/* IRQ Table length (Byte4) */
+
+	{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
+	 AML_OFFSET(extended_irq.interrupt_count),
+	 sizeof(u32)}
+	,
+
+	/* Copy every IRQ in the table, each is 32 bits */
+
+	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+	 AML_OFFSET(extended_irq.interrupts[0]),
+	 0}
+	,
+
+	/* 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)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_dma
+ *
+ ******************************************************************************/
+
+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},
+
+	/* Flags: transfer preference, bus mastering, channel speed */
+
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
+	 AML_OFFSET(dma.flags),
+	 0},
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
+	 AML_OFFSET(dma.flags),
+	 2},
+
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
+	 AML_OFFSET(dma.flags),
+	 5},
+
+	/* 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)}
+};