Creation of Cybook 2416 (actually Gen4) repository

drivers/pnp/pnpacpi/Kconfig

@@ -0,0 +1,6 @@
+#
+# Plug and Play ACPI configuration
+#
+config PNPACPI
+	bool
+	default (PNP && ACPI)

drivers/pnp/pnpacpi/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for the kernel PNPACPI driver.
+#
+
+obj-y := core.o rsparser.o

drivers/pnp/pnpacpi/core.c

@@ -0,0 +1,266 @@
+/*
+ * pnpacpi -- PnP ACPI driver
+ *
+ * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
+ * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
+ * 
+ * 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, 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 <linux/acpi.h>
+#include <linux/pnp.h>
+#include <acpi/acpi_bus.h>
+#include "pnpacpi.h"
+
+static int num = 0;
+
+/* We need only to blacklist devices that have already an acpi driver that
+ * can't use pnp layer. We don't need to blacklist device that are directly
+ * used by the kernel (PCI root, ...), as it is harmless and there were
+ * already present in pnpbios. But there is an exception for devices that
+ * have irqs (PIC, Timer) because we call acpi_register_gsi.
+ * Finaly only devices that have a CRS method need to be in this list.
+ */
+static char __initdata excluded_id_list[] =
+	"PNP0C09," /* EC */
+	"PNP0C0F," /* Link device */
+	"PNP0000," /* PIC */
+	"PNP0100," /* Timer */
+	;
+static inline int is_exclusive_device(struct acpi_device *dev)
+{
+	return (!acpi_match_ids(dev, excluded_id_list));
+}
+
+/*
+ * Compatible Device IDs
+ */
+#define TEST_HEX(c) \
+	if (!(('0' <= (c) && (c) <= '9') || ('A' <= (c) && (c) <= 'F'))) \
+		return 0
+#define TEST_ALPHA(c) \
+	if (!('@' <= (c) || (c) <= 'Z')) \
+		return 0
+static int __init ispnpidacpi(char *id)
+{
+	TEST_ALPHA(id[0]);
+	TEST_ALPHA(id[1]);
+	TEST_ALPHA(id[2]);
+	TEST_HEX(id[3]);
+	TEST_HEX(id[4]);
+	TEST_HEX(id[5]);
+	TEST_HEX(id[6]);
+	if (id[7] != '\0')
+		return 0;
+	return 1;
+}
+
+static void __init pnpidacpi_to_pnpid(char *id, char *str)
+{
+	str[0] = id[0];
+	str[1] = id[1];
+	str[2] = id[2];
+	str[3] = tolower(id[3]);
+	str[4] = tolower(id[4]);
+	str[5] = tolower(id[5]);
+	str[6] = tolower(id[6]);
+	str[7] = '\0';
+}
+
+static int pnpacpi_get_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+{
+	acpi_status status;
+	status = pnpacpi_parse_allocated_resource((acpi_handle)dev->data, 
+		&dev->res);
+	return ACPI_FAILURE(status) ? -ENODEV : 0;
+}
+
+static int pnpacpi_set_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+{
+	acpi_handle handle = dev->data;
+	struct acpi_buffer buffer;
+	int ret = 0;
+	acpi_status status;
+
+	ret = pnpacpi_build_resource_template(handle, &buffer);
+	if (ret)
+		return ret;
+	ret = pnpacpi_encode_resources(res, &buffer);
+	if (ret) {
+		kfree(buffer.pointer);
+		return ret;
+	}
+	status = acpi_set_current_resources(handle, &buffer);
+	if (ACPI_FAILURE(status))
+		ret = -EINVAL;
+	kfree(buffer.pointer);
+	return ret;
+}
+
+static int pnpacpi_disable_resources(struct pnp_dev *dev)
+{
+	acpi_status status;
+	
+	/* acpi_unregister_gsi(pnp_irq(dev, 0)); */
+	status = acpi_evaluate_object((acpi_handle)dev->data, 
+		"_DIS", NULL, NULL);
+	return ACPI_FAILURE(status) ? -ENODEV : 0;
+}
+
+static struct pnp_protocol pnpacpi_protocol = {
+	.name	= "Plug and Play ACPI",
+	.get	= pnpacpi_get_resources,
+	.set	= pnpacpi_set_resources,
+	.disable = pnpacpi_disable_resources,
+};
+
+static int __init pnpacpi_add_device(struct acpi_device *device)
+{
+	acpi_handle temp = NULL;
+	acpi_status status;
+	struct pnp_id *dev_id;
+	struct pnp_dev *dev;
+
+	status = acpi_get_handle(device->handle, "_CRS", &temp);
+	if (ACPI_FAILURE(status) || !ispnpidacpi(acpi_device_hid(device)) ||
+		is_exclusive_device(device))
+		return 0;
+
+	pnp_dbg("ACPI device : hid %s", acpi_device_hid(device));
+	dev =  kzalloc(sizeof(struct pnp_dev), GFP_KERNEL);
+	if (!dev) {
+		pnp_err("Out of memory");
+		return -ENOMEM;
+	}
+	dev->data = device->handle;
+	/* .enabled means if the device can decode the resources */
+	dev->active = device->status.enabled;
+	status = acpi_get_handle(device->handle, "_SRS", &temp);
+	if (ACPI_SUCCESS(status))
+		dev->capabilities |= PNP_CONFIGURABLE;
+	dev->capabilities |= PNP_READ;
+	if (device->flags.dynamic_status)
+		dev->capabilities |= PNP_WRITE;
+	if (device->flags.removable)
+		dev->capabilities |= PNP_REMOVABLE;
+	status = acpi_get_handle(device->handle, "_DIS", &temp);
+	if (ACPI_SUCCESS(status))
+		dev->capabilities |= PNP_DISABLE;
+
+	dev->protocol = &pnpacpi_protocol;
+
+	if (strlen(acpi_device_name(device)))
+		strncpy(dev->name, acpi_device_name(device), sizeof(dev->name));
+	else
+		strncpy(dev->name, acpi_device_bid(device), sizeof(dev->name));
+
+	dev->number = num;
+	
+	/* set the initial values for the PnP device */
+	dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
+	if (!dev_id)
+		goto err;
+	pnpidacpi_to_pnpid(acpi_device_hid(device), dev_id->id);
+	pnp_add_id(dev_id, dev);
+
+	if(dev->active) {
+		/* parse allocated resource */
+		status = pnpacpi_parse_allocated_resource(device->handle, &dev->res);
+		if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
+			pnp_err("PnPACPI: METHOD_NAME__CRS failure for %s", dev_id->id);
+			goto err1;
+		}
+	}
+
+	if(dev->capabilities & PNP_CONFIGURABLE) {
+		status = pnpacpi_parse_resource_option_data(device->handle, 
+			dev);
+		if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
+			pnp_err("PnPACPI: METHOD_NAME__PRS failure for %s", dev_id->id);
+			goto err1;
+		}
+	}
+	
+	/* parse compatible ids */
+	if (device->flags.compatible_ids) {
+		struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
+		int i;
+
+		for (i = 0; i < cid_list->count; i++) {
+			if (!ispnpidacpi(cid_list->id[i].value))
+				continue;
+			dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
+			if (!dev_id)
+				continue;
+
+			pnpidacpi_to_pnpid(cid_list->id[i].value, dev_id->id);
+			pnp_add_id(dev_id, dev);
+		}
+	}
+
+	/* clear out the damaged flags */
+	if (!dev->active)
+		pnp_init_resource_table(&dev->res);
+	pnp_add_device(dev);
+	num ++;
+
+	return AE_OK;
+err1:
+	kfree(dev_id);
+err:
+	kfree(dev);
+	return -EINVAL;
+}
+
+static acpi_status __init pnpacpi_add_device_handler(acpi_handle handle,
+	u32 lvl, void *context, void **rv)
+{
+	struct acpi_device *device;
+
+	if (!acpi_bus_get_device(handle, &device))
+		pnpacpi_add_device(device);
+	else
+		return AE_CTRL_DEPTH;
+	return AE_OK;
+}
+
+int pnpacpi_disabled __initdata;
+static int __init pnpacpi_init(void)
+{
+	if (acpi_disabled || pnpacpi_disabled) {
+		pnp_info("PnP ACPI: disabled");
+		return 0;
+	}
+	pnp_info("PnP ACPI init");
+	pnp_register_protocol(&pnpacpi_protocol);
+	acpi_get_devices(NULL, pnpacpi_add_device_handler, NULL, NULL);
+	pnp_info("PnP ACPI: found %d devices", num);
+	return 0;
+}
+subsys_initcall(pnpacpi_init);
+
+static int __init pnpacpi_setup(char *str)
+{
+	if (str == NULL)
+		return 1;
+	if (!strncmp(str, "off", 3))
+		pnpacpi_disabled = 1;
+	return 1;
+}
+__setup("pnpacpi=", pnpacpi_setup);
+
+#if 0
+EXPORT_SYMBOL(pnpacpi_protocol);
+#endif

drivers/pnp/pnpacpi/pnpacpi.h

@@ -0,0 +1,12 @@
+#ifndef ACPI_PNP_H
+#define ACPI_PNP_H
+
+#include <acpi/acpi_bus.h>
+#include <linux/acpi.h>
+#include <linux/pnp.h>
+
+acpi_status pnpacpi_parse_allocated_resource(acpi_handle, struct pnp_resource_table*);
+acpi_status pnpacpi_parse_resource_option_data(acpi_handle, struct pnp_dev*);
+int pnpacpi_encode_resources(struct pnp_resource_table *, struct acpi_buffer *);
+int pnpacpi_build_resource_template(acpi_handle, struct acpi_buffer*);
+#endif

drivers/pnp/pnpacpi/rsparser.c

@@ -0,0 +1,967 @@
+/*
+ * pnpacpi -- PnP ACPI driver
+ *
+ * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
+ * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
+ *
+ * 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, 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 <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include "pnpacpi.h"
+
+#ifdef CONFIG_IA64
+#define valid_IRQ(i) (1)
+#else
+#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
+#endif
+
+/*
+ * Allocated Resources
+ */
+static int irq_flags(int triggering, int polarity)
+{
+	int flag;
+	if (triggering == ACPI_LEVEL_SENSITIVE) {
+		if (polarity == ACPI_ACTIVE_LOW)
+			flag = IORESOURCE_IRQ_LOWLEVEL;
+		else
+			flag = IORESOURCE_IRQ_HIGHLEVEL;
+	}
+	else {
+		if (polarity == ACPI_ACTIVE_LOW)
+			flag = IORESOURCE_IRQ_LOWEDGE;
+		else
+			flag = IORESOURCE_IRQ_HIGHEDGE;
+	}
+	return flag;
+}
+
+static void decode_irq_flags(int flag, int *triggering, int *polarity)
+{
+	switch (flag) {
+	case IORESOURCE_IRQ_LOWLEVEL:
+		*triggering = ACPI_LEVEL_SENSITIVE;
+		*polarity = ACPI_ACTIVE_LOW;
+		break;
+	case IORESOURCE_IRQ_HIGHLEVEL:
+		*triggering = ACPI_LEVEL_SENSITIVE;
+		*polarity = ACPI_ACTIVE_HIGH;
+		break;
+	case IORESOURCE_IRQ_LOWEDGE:
+		*triggering = ACPI_EDGE_SENSITIVE;
+		*polarity = ACPI_ACTIVE_LOW;
+		break;
+	case IORESOURCE_IRQ_HIGHEDGE:
+		*triggering = ACPI_EDGE_SENSITIVE;
+		*polarity = ACPI_ACTIVE_HIGH;
+		break;
+	}
+}
+
+static void
+pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, u32 gsi,
+	int triggering, int polarity, int shareable)
+{
+	int i = 0;
+	int irq;
+
+	if (!valid_IRQ(gsi))
+		return;
+
+	while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
+			i < PNP_MAX_IRQ)
+		i++;
+	if (i >= PNP_MAX_IRQ)
+		return;
+
+	res->irq_resource[i].flags = IORESOURCE_IRQ;  // Also clears _UNSET flag
+	res->irq_resource[i].flags |= irq_flags(triggering, polarity);
+	irq = acpi_register_gsi(gsi, triggering, polarity);
+	if (irq < 0) {
+		res->irq_resource[i].flags |= IORESOURCE_DISABLED;
+		return;
+	}
+
+	if (shareable)
+		res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
+
+	res->irq_resource[i].start = irq;
+	res->irq_resource[i].end = irq;
+	pcibios_penalize_isa_irq(irq, 1);
+}
+
+static int dma_flags(int type, int bus_master, int transfer)
+{
+	int flags = 0;
+
+	if (bus_master)
+		flags |= IORESOURCE_DMA_MASTER;
+	switch (type) {
+	case ACPI_COMPATIBILITY:
+		flags |= IORESOURCE_DMA_COMPATIBLE;
+		break;
+	case ACPI_TYPE_A:
+		flags |= IORESOURCE_DMA_TYPEA;
+		break;
+	case ACPI_TYPE_B:
+		flags |= IORESOURCE_DMA_TYPEB;
+		break;
+	case ACPI_TYPE_F:
+		flags |= IORESOURCE_DMA_TYPEF;
+		break;
+	default:
+		/* Set a default value ? */
+		flags |= IORESOURCE_DMA_COMPATIBLE;
+		pnp_err("Invalid DMA type");
+	}
+	switch (transfer) {
+	case ACPI_TRANSFER_8:
+		flags |= IORESOURCE_DMA_8BIT;
+		break;
+	case ACPI_TRANSFER_8_16:
+		flags |= IORESOURCE_DMA_8AND16BIT;
+		break;
+	case ACPI_TRANSFER_16:
+		flags |= IORESOURCE_DMA_16BIT;
+		break;
+	default:
+		/* Set a default value ? */
+		flags |= IORESOURCE_DMA_8AND16BIT;
+		pnp_err("Invalid DMA transfer type");
+	}
+
+	return flags;
+}
+
+static void
+pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res, u32 dma,
+	int type, int bus_master, int transfer)
+{
+	int i = 0;
+	while (i < PNP_MAX_DMA &&
+			!(res->dma_resource[i].flags & IORESOURCE_UNSET))
+		i++;
+	if (i < PNP_MAX_DMA) {
+		res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
+		res->dma_resource[i].flags |= dma_flags(type, bus_master, transfer);
+		if (dma == -1) {
+			res->dma_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
+		res->dma_resource[i].start = dma;
+		res->dma_resource[i].end = dma;
+	}
+}
+
+static void
+pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
+	u64 io, u64 len, int io_decode)
+{
+	int i = 0;
+	while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
+			i < PNP_MAX_PORT)
+		i++;
+	if (i < PNP_MAX_PORT) {
+		res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
+		if (io_decode == ACPI_DECODE_16)
+			res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
+		if (len <= 0 || (io + len -1) >= 0x10003) {
+			res->port_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
+		res->port_resource[i].start = io;
+		res->port_resource[i].end = io + len - 1;
+	}
+}
+
+static void
+pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
+	u64 mem, u64 len, int write_protect)
+{
+	int i = 0;
+	while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
+			(i < PNP_MAX_MEM))
+		i++;
+	if (i < PNP_MAX_MEM) {
+		res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
+		if (len <= 0) {
+			res->mem_resource[i].flags |= IORESOURCE_DISABLED;
+			return;
+		}
+		if(write_protect == ACPI_READ_WRITE_MEMORY)
+			res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
+
+		res->mem_resource[i].start = mem;
+		res->mem_resource[i].end = mem + len - 1;
+	}
+}
+
+static void
+pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
+	struct acpi_resource *res)
+{
+	struct acpi_resource_address64 addr, *p = &addr;
+	acpi_status status;
+
+	status = acpi_resource_to_address64(res, p);
+	if (!ACPI_SUCCESS(status)) {
+		pnp_warn("PnPACPI: failed to convert resource type %d",
+			res->type);
+		return;
+	}
+
+	if (p->producer_consumer == ACPI_PRODUCER)
+		return;
+
+	if (p->resource_type == ACPI_MEMORY_RANGE)
+		pnpacpi_parse_allocated_memresource(res_table,
+				p->minimum, p->address_length, p->info.mem.write_protect);
+	else if (p->resource_type == ACPI_IO_RANGE)
+		pnpacpi_parse_allocated_ioresource(res_table,
+				p->minimum, p->address_length,
+				p->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16);
+}
+
+static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
+	void *data)
+{
+	struct pnp_resource_table *res_table = (struct pnp_resource_table *)data;
+	int i;
+
+	switch (res->type) {
+	case ACPI_RESOURCE_TYPE_IRQ:
+		/*
+		 * Per spec, only one interrupt per descriptor is allowed in
+		 * _CRS, but some firmware violates this, so parse them all.
+		 */
+		for (i = 0; i < res->data.irq.interrupt_count; i++) {
+			pnpacpi_parse_allocated_irqresource(res_table,
+				res->data.irq.interrupts[i],
+				res->data.irq.triggering,
+				res->data.irq.polarity,
+				res->data.irq.sharable);
+		}
+		break;
+
+	case ACPI_RESOURCE_TYPE_DMA:
+		if (res->data.dma.channel_count > 0)
+			pnpacpi_parse_allocated_dmaresource(res_table,
+					res->data.dma.channels[0],
+					res->data.dma.type,
+					res->data.dma.bus_master,
+					res->data.dma.transfer);
+		break;
+
+	case ACPI_RESOURCE_TYPE_IO:
+		pnpacpi_parse_allocated_ioresource(res_table,
+				res->data.io.minimum,
+				res->data.io.address_length,
+				res->data.io.io_decode);
+		break;
+
+	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
+		break;
+
+	case ACPI_RESOURCE_TYPE_FIXED_IO:
+		pnpacpi_parse_allocated_ioresource(res_table,
+				res->data.fixed_io.address,
+				res->data.fixed_io.address_length,
+				ACPI_DECODE_10);
+		break;
+
+	case ACPI_RESOURCE_TYPE_VENDOR:
+		break;
+
+	case ACPI_RESOURCE_TYPE_END_TAG:
+		break;
+
+	case ACPI_RESOURCE_TYPE_MEMORY24:
+		pnpacpi_parse_allocated_memresource(res_table,
+				res->data.memory24.minimum,
+				res->data.memory24.address_length,
+				res->data.memory24.write_protect);
+		break;
+	case ACPI_RESOURCE_TYPE_MEMORY32:
+		pnpacpi_parse_allocated_memresource(res_table,
+				res->data.memory32.minimum,
+				res->data.memory32.address_length,
+				res->data.memory32.write_protect);
+		break;
+	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+		pnpacpi_parse_allocated_memresource(res_table,
+				res->data.fixed_memory32.address,
+				res->data.fixed_memory32.address_length,
+				res->data.fixed_memory32.write_protect);
+		break;
+	case ACPI_RESOURCE_TYPE_ADDRESS16:
+	case ACPI_RESOURCE_TYPE_ADDRESS32:
+	case ACPI_RESOURCE_TYPE_ADDRESS64:
+		pnpacpi_parse_allocated_address_space(res_table, res);
+		break;
+
+	case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
+		if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
+			return AE_OK;
+		break;
+
+	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+		if (res->data.extended_irq.producer_consumer == ACPI_PRODUCER)
+			return AE_OK;
+
+		for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
+			pnpacpi_parse_allocated_irqresource(res_table,
+				res->data.extended_irq.interrupts[i],
+				res->data.extended_irq.triggering,
+				res->data.extended_irq.polarity,
+				res->data.extended_irq.sharable);
+		}
+		break;
+
+	case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
+		break;
+
+	default:
+		pnp_warn("PnPACPI: unknown resource type %d", res->type);
+		return AE_ERROR;
+	}
+
+	return AE_OK;
+}
+
+acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table *res)
+{
+	/* Blank the resource table values */
+	pnp_init_resource_table(res);
+
+	return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res);
+}
+
+static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p)
+{
+	int i;
+	struct pnp_dma * dma;
+
+	if (p->channel_count == 0)
+		return;
+	dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
+	if (!dma)
+		return;
+
+	for(i = 0; i < p->channel_count; i++)
+		dma->map |= 1 << p->channels[i];
+
+	dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
+
+	pnp_register_dma_resource(option, dma);
+	return;
+}
+
+
+static void pnpacpi_parse_irq_option(struct pnp_option *option,
+	struct acpi_resource_irq *p)
+{
+	int i;
+	struct pnp_irq *irq;
+
+	if (p->interrupt_count == 0)
+		return;
+	irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
+	if (!irq)
+		return;
+
+	for(i = 0; i < p->interrupt_count; i++)
+		if (p->interrupts[i])
+			__set_bit(p->interrupts[i], irq->map);
+	irq->flags = irq_flags(p->triggering, p->polarity);
+
+	pnp_register_irq_resource(option, irq);
+	return;
+}
+
+static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
+	struct acpi_resource_extended_irq *p)
+{
+	int i;
+	struct pnp_irq *irq;
+
+	if (p->interrupt_count == 0)
+		return;
+	irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
+	if (!irq)
+		return;
+
+	for(i = 0; i < p->interrupt_count; i++)
+		if (p->interrupts[i])
+			__set_bit(p->interrupts[i], irq->map);
+	irq->flags = irq_flags(p->triggering, p->polarity);
+
+	pnp_register_irq_resource(option, irq);
+	return;
+}
+
+static void
+pnpacpi_parse_port_option(struct pnp_option *option,
+	struct acpi_resource_io *io)
+{
+	struct pnp_port *port;
+
+	if (io->address_length == 0)
+		return;
+	port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
+	if (!port)
+		return;
+	port->min = io->minimum;
+	port->max = io->maximum;
+	port->align = io->alignment;
+	port->size = io->address_length;
+	port->flags = ACPI_DECODE_16 == io->io_decode ?
+		PNP_PORT_FLAG_16BITADDR : 0;
+	pnp_register_port_resource(option, port);
+	return;
+}
+
+static void
+pnpacpi_parse_fixed_port_option(struct pnp_option *option,
+	struct acpi_resource_fixed_io *io)
+{
+	struct pnp_port *port;
+
+	if (io->address_length == 0)
+		return;
+	port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
+	if (!port)
+		return;
+	port->min = port->max = io->address;
+	port->size = io->address_length;
+	port->align = 0;
+	port->flags = PNP_PORT_FLAG_FIXED;
+	pnp_register_port_resource(option, port);
+	return;
+}
+
+static void
+pnpacpi_parse_mem24_option(struct pnp_option *option,
+	struct acpi_resource_memory24 *p)
+{
+	struct pnp_mem *mem;
+
+	if (p->address_length == 0)
+		return;
+	mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+	if (!mem)
+		return;
+	mem->min = p->minimum;
+	mem->max = p->maximum;
+	mem->align = p->alignment;
+	mem->size = p->address_length;
+
+	mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
+			IORESOURCE_MEM_WRITEABLE : 0;
+
+	pnp_register_mem_resource(option, mem);
+	return;
+}
+
+static void
+pnpacpi_parse_mem32_option(struct pnp_option *option,
+	struct acpi_resource_memory32 *p)
+{
+	struct pnp_mem *mem;
+
+	if (p->address_length == 0)
+		return;
+	mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+	if (!mem)
+		return;
+	mem->min = p->minimum;
+	mem->max = p->maximum;
+	mem->align = p->alignment;
+	mem->size = p->address_length;
+
+	mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
+			IORESOURCE_MEM_WRITEABLE : 0;
+
+	pnp_register_mem_resource(option, mem);
+	return;
+}
+
+static void
+pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
+	struct acpi_resource_fixed_memory32 *p)
+{
+	struct pnp_mem *mem;
+
+	if (p->address_length == 0)
+		return;
+	mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+	if (!mem)
+		return;
+	mem->min = mem->max = p->address;
+	mem->size = p->address_length;
+	mem->align = 0;
+
+	mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
+			IORESOURCE_MEM_WRITEABLE : 0;
+
+	pnp_register_mem_resource(option, mem);
+	return;
+}
+
+static void
+pnpacpi_parse_address_option(struct pnp_option *option, struct acpi_resource *r)
+{
+	struct acpi_resource_address64 addr, *p = &addr;
+	acpi_status status;
+	struct pnp_mem *mem;
+	struct pnp_port *port;
+
+	status = acpi_resource_to_address64(r, p);
+	if (!ACPI_SUCCESS(status)) {
+		pnp_warn("PnPACPI: failed to convert resource type %d", r->type);
+		return;
+	}
+
+	if (p->address_length == 0)
+		return;
+
+	if (p->resource_type == ACPI_MEMORY_RANGE) {
+		mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+		if (!mem)
+			return;
+		mem->min = mem->max = p->minimum;
+		mem->size = p->address_length;
+		mem->align = 0;
+		mem->flags = (p->info.mem.write_protect ==
+		    ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE : 0;
+		pnp_register_mem_resource(option, mem);
+	} else if (p->resource_type == ACPI_IO_RANGE) {
+		port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
+		if (!port)
+			return;
+		port->min = port->max = p->minimum;
+		port->size = p->address_length;
+		port->align = 0;
+		port->flags = PNP_PORT_FLAG_FIXED;
+		pnp_register_port_resource(option, port);
+	}
+}
+
+struct acpipnp_parse_option_s {
+	struct pnp_option *option;
+	struct pnp_option *option_independent;
+	struct pnp_dev *dev;
+};
+
+static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
+	void *data)
+{
+	int priority = 0;
+	struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data;
+	struct pnp_dev *dev = parse_data->dev;
+	struct pnp_option *option = parse_data->option;
+
+	switch (res->type) {
+		case ACPI_RESOURCE_TYPE_IRQ:
+			pnpacpi_parse_irq_option(option, &res->data.irq);
+			break;
+
+		case ACPI_RESOURCE_TYPE_DMA:
+			pnpacpi_parse_dma_option(option, &res->data.dma);
+			break;
+
+		case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+			switch (res->data.start_dpf.compatibility_priority) {
+				case ACPI_GOOD_CONFIGURATION:
+					priority = PNP_RES_PRIORITY_PREFERRED;
+					break;
+
+				case ACPI_ACCEPTABLE_CONFIGURATION:
+					priority = PNP_RES_PRIORITY_ACCEPTABLE;
+					break;
+
+				case ACPI_SUB_OPTIMAL_CONFIGURATION:
+					priority = PNP_RES_PRIORITY_FUNCTIONAL;
+					break;
+				default:
+					priority = PNP_RES_PRIORITY_INVALID;
+					break;
+			}
+			/* TBD: Considering performace/robustness bits */
+			option = pnp_register_dependent_option(dev, priority);
+			if (!option)
+				return AE_ERROR;
+			parse_data->option = option;
+			break;
+
+		case ACPI_RESOURCE_TYPE_END_DEPENDENT:
+			/*only one EndDependentFn is allowed*/
+			if (!parse_data->option_independent) {
+				pnp_warn("PnPACPI: more than one EndDependentFn");
+				return AE_ERROR;
+			}
+			parse_data->option = parse_data->option_independent;
+			parse_data->option_independent = NULL;
+			break;
+
+		case ACPI_RESOURCE_TYPE_IO:
+			pnpacpi_parse_port_option(option, &res->data.io);
+			break;
+
+		case ACPI_RESOURCE_TYPE_FIXED_IO:
+			pnpacpi_parse_fixed_port_option(option,
+				&res->data.fixed_io);
+			break;
+
+		case ACPI_RESOURCE_TYPE_VENDOR:
+		case ACPI_RESOURCE_TYPE_END_TAG:
+			break;
+
+		case ACPI_RESOURCE_TYPE_MEMORY24:
+			pnpacpi_parse_mem24_option(option, &res->data.memory24);
+			break;
+
+		case ACPI_RESOURCE_TYPE_MEMORY32:
+			pnpacpi_parse_mem32_option(option, &res->data.memory32);
+			break;
+
+		case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+			pnpacpi_parse_fixed_mem32_option(option,
+				&res->data.fixed_memory32);
+			break;
+
+		case ACPI_RESOURCE_TYPE_ADDRESS16:
+		case ACPI_RESOURCE_TYPE_ADDRESS32:
+		case ACPI_RESOURCE_TYPE_ADDRESS64:
+			pnpacpi_parse_address_option(option, res);
+			break;
+
+		case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
+			break;
+
+		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+			pnpacpi_parse_ext_irq_option(option,
+				&res->data.extended_irq);
+			break;
+
+		case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
+			break;
+
+		default:
+			pnp_warn("PnPACPI: unknown resource type %d", res->type);
+			return AE_ERROR;
+	}
+
+	return AE_OK;
+}
+
+acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
+	struct pnp_dev *dev)
+{
+	acpi_status status;
+	struct acpipnp_parse_option_s parse_data;
+
+	parse_data.option = pnp_register_independent_option(dev);
+	if (!parse_data.option)
+		return AE_ERROR;
+	parse_data.option_independent = parse_data.option;
+	parse_data.dev = dev;
+	status = acpi_walk_resources(handle, METHOD_NAME__PRS,
+		pnpacpi_option_resource, &parse_data);
+
+	return status;
+}
+
+static int pnpacpi_supported_resource(struct acpi_resource *res)
+{
+	switch (res->type) {
+	case ACPI_RESOURCE_TYPE_IRQ:
+	case ACPI_RESOURCE_TYPE_DMA:
+	case ACPI_RESOURCE_TYPE_IO:
+	case ACPI_RESOURCE_TYPE_FIXED_IO:
+	case ACPI_RESOURCE_TYPE_MEMORY24:
+	case ACPI_RESOURCE_TYPE_MEMORY32:
+	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+	case ACPI_RESOURCE_TYPE_ADDRESS16:
+	case ACPI_RESOURCE_TYPE_ADDRESS32:
+	case ACPI_RESOURCE_TYPE_ADDRESS64:
+	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * Set resource
+ */
+static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
+	void *data)
+{
+	int *res_cnt = (int *)data;
+
+	if (pnpacpi_supported_resource(res))
+		(*res_cnt)++;
+	return AE_OK;
+}
+
+static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
+{
+	struct acpi_resource **resource = (struct acpi_resource **)data;
+
+	if (pnpacpi_supported_resource(res)) {
+		(*resource)->type = res->type;
+		(*resource)->length = sizeof(struct acpi_resource);
+		(*resource)++;
+	}
+
+	return AE_OK;
+}
+
+int pnpacpi_build_resource_template(acpi_handle handle,
+	struct acpi_buffer *buffer)
+{
+	struct acpi_resource *resource;
+	int res_cnt = 0;
+	acpi_status status;
+
+	status = acpi_walk_resources(handle, METHOD_NAME__CRS,
+		pnpacpi_count_resources, &res_cnt);
+	if (ACPI_FAILURE(status)) {
+		pnp_err("Evaluate _CRS failed");
+		return -EINVAL;
+	}
+	if (!res_cnt)
+		return -EINVAL;
+	buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
+	buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
+	if (!buffer->pointer)
+		return -ENOMEM;
+	pnp_dbg("Res cnt %d", res_cnt);
+	resource = (struct acpi_resource *)buffer->pointer;
+	status = acpi_walk_resources(handle, METHOD_NAME__CRS,
+		pnpacpi_type_resources, &resource);
+	if (ACPI_FAILURE(status)) {
+		kfree(buffer->pointer);
+		pnp_err("Evaluate _CRS failed");
+		return -EINVAL;
+	}
+	/* resource will pointer the end resource now */
+	resource->type = ACPI_RESOURCE_TYPE_END_TAG;
+
+	return 0;
+}
+
+static void pnpacpi_encode_irq(struct acpi_resource *resource,
+	struct resource *p)
+{
+	int triggering, polarity;
+
+	decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
+	resource->data.irq.triggering = triggering;
+	resource->data.irq.polarity = polarity;
+	if (triggering == ACPI_EDGE_SENSITIVE)
+		resource->data.irq.sharable = ACPI_EXCLUSIVE;
+	else
+		resource->data.irq.sharable = ACPI_SHARED;
+	resource->data.irq.interrupt_count = 1;
+	resource->data.irq.interrupts[0] = p->start;
+}
+
+static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
+	struct resource *p)
+{
+	int triggering, polarity;
+
+	decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
+	resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
+	resource->data.extended_irq.triggering = triggering;
+	resource->data.extended_irq.polarity = polarity;
+	if (triggering == ACPI_EDGE_SENSITIVE)
+		resource->data.irq.sharable = ACPI_EXCLUSIVE;
+	else
+		resource->data.irq.sharable = ACPI_SHARED;
+	resource->data.extended_irq.interrupt_count = 1;
+	resource->data.extended_irq.interrupts[0] = p->start;
+}
+
+static void pnpacpi_encode_dma(struct acpi_resource *resource,
+	struct resource *p)
+{
+	/* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
+	switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
+		case IORESOURCE_DMA_TYPEA:
+			resource->data.dma.type = ACPI_TYPE_A;
+			break;
+		case IORESOURCE_DMA_TYPEB:
+			resource->data.dma.type = ACPI_TYPE_B;
+			break;
+		case IORESOURCE_DMA_TYPEF:
+			resource->data.dma.type = ACPI_TYPE_F;
+			break;
+		default:
+			resource->data.dma.type = ACPI_COMPATIBILITY;
+	}
+
+	switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
+		case IORESOURCE_DMA_8BIT:
+			resource->data.dma.transfer = ACPI_TRANSFER_8;
+			break;
+		case IORESOURCE_DMA_8AND16BIT:
+			resource->data.dma.transfer = ACPI_TRANSFER_8_16;
+			break;
+		default:
+			resource->data.dma.transfer = ACPI_TRANSFER_16;
+	}
+
+	resource->data.dma.bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
+	resource->data.dma.channel_count = 1;
+	resource->data.dma.channels[0] = p->start;
+}
+
+static void pnpacpi_encode_io(struct acpi_resource *resource,
+	struct resource *p)
+{
+	/* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
+	resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)?
+		ACPI_DECODE_16 : ACPI_DECODE_10;
+	resource->data.io.minimum = p->start;
+	resource->data.io.maximum = p->end;
+	resource->data.io.alignment = 0; /* Correct? */
+	resource->data.io.address_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
+	struct resource *p)
+{
+	resource->data.fixed_io.address = p->start;
+	resource->data.fixed_io.address_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_mem24(struct acpi_resource *resource,
+	struct resource *p)
+{
+	/* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
+	resource->data.memory24.write_protect =
+		(p->flags & IORESOURCE_MEM_WRITEABLE) ?
+		ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+	resource->data.memory24.minimum = p->start;
+	resource->data.memory24.maximum = p->end;
+	resource->data.memory24.alignment = 0;
+	resource->data.memory24.address_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_mem32(struct acpi_resource *resource,
+	struct resource *p)
+{
+	resource->data.memory32.write_protect =
+		(p->flags & IORESOURCE_MEM_WRITEABLE) ?
+		ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+	resource->data.memory32.minimum = p->start;
+	resource->data.memory32.maximum = p->end;
+	resource->data.memory32.alignment = 0;
+	resource->data.memory32.address_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
+	struct resource *p)
+{
+	resource->data.fixed_memory32.write_protect =
+		(p->flags & IORESOURCE_MEM_WRITEABLE) ?
+		ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+	resource->data.fixed_memory32.address = p->start;
+	resource->data.fixed_memory32.address_length = p->end - p->start + 1;
+}
+
+int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
+	struct acpi_buffer *buffer)
+{
+	int i = 0;
+	/* pnpacpi_build_resource_template allocates extra mem */
+	int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1;
+	struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer;
+	int port = 0, irq = 0, dma = 0, mem = 0;
+
+	pnp_dbg("res cnt %d", res_cnt);
+	while (i < res_cnt) {
+		switch(resource->type) {
+		case ACPI_RESOURCE_TYPE_IRQ:
+			pnp_dbg("Encode irq");
+			pnpacpi_encode_irq(resource,
+				&res_table->irq_resource[irq]);
+			irq++;
+			break;
+
+		case ACPI_RESOURCE_TYPE_DMA:
+			pnp_dbg("Encode dma");
+			pnpacpi_encode_dma(resource,
+				&res_table->dma_resource[dma]);
+			dma++;
+			break;
+		case ACPI_RESOURCE_TYPE_IO:
+			pnp_dbg("Encode io");
+			pnpacpi_encode_io(resource,
+				&res_table->port_resource[port]);
+			port++;
+			break;
+		case ACPI_RESOURCE_TYPE_FIXED_IO:
+			pnp_dbg("Encode fixed io");
+			pnpacpi_encode_fixed_io(resource,
+				&res_table->port_resource[port]);
+			port++;
+			break;
+		case ACPI_RESOURCE_TYPE_MEMORY24:
+			pnp_dbg("Encode mem24");
+			pnpacpi_encode_mem24(resource,
+				&res_table->mem_resource[mem]);
+			mem++;
+			break;
+		case ACPI_RESOURCE_TYPE_MEMORY32:
+			pnp_dbg("Encode mem32");
+			pnpacpi_encode_mem32(resource,
+				&res_table->mem_resource[mem]);
+			mem++;
+			break;
+		case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+			pnp_dbg("Encode fixed mem32");
+			pnpacpi_encode_fixed_mem32(resource,
+				&res_table->mem_resource[mem]);
+			mem++;
+			break;
+		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+			pnp_dbg("Encode ext irq");
+			pnpacpi_encode_ext_irq(resource,
+				&res_table->irq_resource[irq]);
+			irq++;
+			break;
+		case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+		case ACPI_RESOURCE_TYPE_END_DEPENDENT:
+		case ACPI_RESOURCE_TYPE_VENDOR:
+		case ACPI_RESOURCE_TYPE_END_TAG:
+		case ACPI_RESOURCE_TYPE_ADDRESS16:
+		case ACPI_RESOURCE_TYPE_ADDRESS32:
+		case ACPI_RESOURCE_TYPE_ADDRESS64:
+		case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
+		case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
+		default: /* other type */
+			pnp_warn("unknown resource type %d", resource->type);
+			return -EINVAL;
+		}
+		resource++;
+		i++;
+	}
+	return 0;
+}