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-rw-r--r--drivers/pnp/pnpacpi/Kconfig18
-rw-r--r--drivers/pnp/pnpacpi/Makefile5
-rw-r--r--drivers/pnp/pnpacpi/core.c269
-rw-r--r--drivers/pnp/pnpacpi/pnpacpi.h13
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c821
5 files changed, 1126 insertions, 0 deletions
diff --git a/drivers/pnp/pnpacpi/Kconfig b/drivers/pnp/pnpacpi/Kconfig
new file mode 100644
index 00000000000..0782cdc5009
--- /dev/null
+++ b/drivers/pnp/pnpacpi/Kconfig
@@ -0,0 +1,18 @@
+#
+# Plug and Play ACPI configuration
+#
+config PNPACPI
+ bool "Plug and Play ACPI support (EXPERIMENTAL)"
+ depends on PNP && ACPI_BUS && EXPERIMENTAL
+ default y
+ ---help---
+ Linux uses the PNPACPI to autodetect built-in
+ mainboard resources (e.g. parallel port resources).
+
+ Some features (e.g. real hotplug) are not currently
+ implemented.
+
+ If you would like the kernel to detect and allocate resources to
+ your mainboard devices (on some systems they are disabled by the
+ BIOS) say Y here. Also the PNPACPI can help prevent resource
+ conflicts between mainboard devices and other bus devices.
diff --git a/drivers/pnp/pnpacpi/Makefile b/drivers/pnp/pnpacpi/Makefile
new file mode 100644
index 00000000000..905326fcca8
--- /dev/null
+++ b/drivers/pnp/pnpacpi/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the kernel PNPACPI driver.
+#
+
+obj-y := core.o rsparser.o
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
new file mode 100644
index 00000000000..8655dd2e5b8
--- /dev/null
+++ b/drivers/pnp/pnpacpi/core.c
@@ -0,0 +1,269 @@
+/*
+ * 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;
+
+static char __initdata excluded_id_list[] =
+ "PNP0C0A," /* Battery */
+ "PNP0C0C,PNP0C0E,PNP0C0D," /* Button */
+ "PNP0C09," /* EC */
+ "PNP0C0B," /* Fan */
+ "PNP0A03," /* PCI root */
+ "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));
+}
+
+void *pnpacpi_kmalloc(size_t size, int f)
+{
+ void *p = kmalloc(size, f);
+ if (p)
+ memset(p, 0, size);
+ return p;
+}
+
+/*
+ * 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;
+}
+
+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;
+
+ if (!ispnpidacpi(acpi_device_hid(device)) ||
+ is_exclusive_device(device))
+ return 0;
+
+ pnp_dbg("ACPI device : hid %s", acpi_device_hid(device));
+ dev = pnpacpi_kmalloc(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 = pnpacpi_kmalloc(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 = pnpacpi_kmalloc(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;
+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);
+
+EXPORT_SYMBOL(pnpacpi_protocol);
diff --git a/drivers/pnp/pnpacpi/pnpacpi.h b/drivers/pnp/pnpacpi/pnpacpi.h
new file mode 100644
index 00000000000..76f907e09ee
--- /dev/null
+++ b/drivers/pnp/pnpacpi/pnpacpi.h
@@ -0,0 +1,13 @@
+#ifndef ACPI_PNP_H
+#define ACPI_PNP_H
+
+#include <acpi/acpi_bus.h>
+#include <linux/acpi.h>
+#include <linux/pnp.h>
+
+void *pnpacpi_kmalloc(size_t size, int f);
+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
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
new file mode 100644
index 00000000000..c0ddb1eb8c4
--- /dev/null
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -0,0 +1,821 @@
+/*
+ * 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 edge_level, int active_high_low)
+{
+ int flag;
+ if (edge_level == ACPI_LEVEL_SENSITIVE) {
+ if(active_high_low == ACPI_ACTIVE_LOW)
+ flag = IORESOURCE_IRQ_LOWLEVEL;
+ else
+ flag = IORESOURCE_IRQ_HIGHLEVEL;
+ }
+ else {
+ if(active_high_low == ACPI_ACTIVE_LOW)
+ flag = IORESOURCE_IRQ_LOWEDGE;
+ else
+ flag = IORESOURCE_IRQ_HIGHEDGE;
+ }
+ return flag;
+}
+
+static void decode_irq_flags(int flag, int *edge_level, int *active_high_low)
+{
+ switch (flag) {
+ case IORESOURCE_IRQ_LOWLEVEL:
+ *edge_level = ACPI_LEVEL_SENSITIVE;
+ *active_high_low = ACPI_ACTIVE_LOW;
+ break;
+ case IORESOURCE_IRQ_HIGHLEVEL:
+ *edge_level = ACPI_LEVEL_SENSITIVE;
+ *active_high_low = ACPI_ACTIVE_HIGH;
+ break;
+ case IORESOURCE_IRQ_LOWEDGE:
+ *edge_level = ACPI_EDGE_SENSITIVE;
+ *active_high_low = ACPI_ACTIVE_LOW;
+ break;
+ case IORESOURCE_IRQ_HIGHEDGE:
+ *edge_level = ACPI_EDGE_SENSITIVE;
+ *active_high_low = ACPI_ACTIVE_HIGH;
+ break;
+ }
+}
+
+static void
+pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq)
+{
+ int i = 0;
+ while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
+ i < PNP_MAX_IRQ)
+ i++;
+ if (i < PNP_MAX_IRQ) {
+ res->irq_resource[i].flags = IORESOURCE_IRQ; //Also clears _UNSET flag
+ if (irq == -1) {
+ res->irq_resource[i].flags |= IORESOURCE_DISABLED;
+ return;
+ }
+ res->irq_resource[i].start =(unsigned long) irq;
+ res->irq_resource[i].end = (unsigned long) irq;
+ }
+}
+
+static void
+pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma)
+{
+ int i = 0;
+ while (!(res->dma_resource[i].flags & IORESOURCE_UNSET) &&
+ i < PNP_MAX_DMA)
+ i++;
+ if (i < PNP_MAX_DMA) {
+ res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
+ if (dma == -1) {
+ res->dma_resource[i].flags |= IORESOURCE_DISABLED;
+ return;
+ }
+ res->dma_resource[i].start =(unsigned long) dma;
+ res->dma_resource[i].end = (unsigned long) dma;
+ }
+}
+
+static void
+pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res,
+ int io, int len)
+{
+ 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 (len <= 0 || (io + len -1) >= 0x10003) {
+ res->port_resource[i].flags |= IORESOURCE_DISABLED;
+ return;
+ }
+ res->port_resource[i].start = (unsigned long) io;
+ res->port_resource[i].end = (unsigned long)(io + len - 1);
+ }
+}
+
+static void
+pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res,
+ int mem, int len)
+{
+ 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;
+ }
+ res->mem_resource[i].start = (unsigned long) mem;
+ res->mem_resource[i].end = (unsigned long)(mem + len - 1);
+ }
+}
+
+
+static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
+ void *data)
+{
+ struct pnp_resource_table * res_table = (struct pnp_resource_table *)data;
+
+ switch (res->id) {
+ case ACPI_RSTYPE_IRQ:
+ if ((res->data.irq.number_of_interrupts > 0) &&
+ valid_IRQ(res->data.irq.interrupts[0])) {
+ pnpacpi_parse_allocated_irqresource(res_table,
+ acpi_register_gsi(res->data.irq.interrupts[0],
+ res->data.irq.edge_level,
+ res->data.irq.active_high_low));
+ pcibios_penalize_isa_irq(res->data.irq.interrupts[0]);
+ }
+ break;
+
+ case ACPI_RSTYPE_EXT_IRQ:
+ if ((res->data.extended_irq.number_of_interrupts > 0) &&
+ valid_IRQ(res->data.extended_irq.interrupts[0])) {
+ pnpacpi_parse_allocated_irqresource(res_table,
+ acpi_register_gsi(res->data.extended_irq.interrupts[0],
+ res->data.extended_irq.edge_level,
+ res->data.extended_irq.active_high_low));
+ pcibios_penalize_isa_irq(res->data.extended_irq.interrupts[0]);
+ }
+ break;
+ case ACPI_RSTYPE_DMA:
+ if (res->data.dma.number_of_channels > 0)
+ pnpacpi_parse_allocated_dmaresource(res_table,
+ res->data.dma.channels[0]);
+ break;
+ case ACPI_RSTYPE_IO:
+ pnpacpi_parse_allocated_ioresource(res_table,
+ res->data.io.min_base_address,
+ res->data.io.range_length);
+ break;
+ case ACPI_RSTYPE_FIXED_IO:
+ pnpacpi_parse_allocated_ioresource(res_table,
+ res->data.fixed_io.base_address,
+ res->data.fixed_io.range_length);
+ break;
+ case ACPI_RSTYPE_MEM24:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.memory24.min_base_address,
+ res->data.memory24.range_length);
+ break;
+ case ACPI_RSTYPE_MEM32:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.memory32.min_base_address,
+ res->data.memory32.range_length);
+ break;
+ case ACPI_RSTYPE_FIXED_MEM32:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.fixed_memory32.range_base_address,
+ res->data.fixed_memory32.range_length);
+ break;
+ case ACPI_RSTYPE_ADDRESS16:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.address16.min_address_range,
+ res->data.address16.address_length);
+ break;
+ case ACPI_RSTYPE_ADDRESS32:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.address32.min_address_range,
+ res->data.address32.address_length);
+ break;
+ case ACPI_RSTYPE_ADDRESS64:
+ pnpacpi_parse_allocated_memresource(res_table,
+ res->data.address64.min_address_range,
+ res->data.address64.address_length);
+ break;
+ case ACPI_RSTYPE_VENDOR:
+ break;
+ default:
+ pnp_warn("PnPACPI: unknown resource type %d", res->id);
+ 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->number_of_channels == 0)
+ return;
+ dma = pnpacpi_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL);
+ if (!dma)
+ return;
+
+ for(i = 0; i < p->number_of_channels; i++)
+ dma->map |= 1 << p->channels[i];
+ dma->flags = 0;
+ if (p->bus_master)
+ dma->flags |= IORESOURCE_DMA_MASTER;
+ switch (p->type) {
+ case ACPI_COMPATIBILITY:
+ dma->flags |= IORESOURCE_DMA_COMPATIBLE;
+ break;
+ case ACPI_TYPE_A:
+ dma->flags |= IORESOURCE_DMA_TYPEA;
+ break;
+ case ACPI_TYPE_B:
+ dma->flags |= IORESOURCE_DMA_TYPEB;
+ break;
+ case ACPI_TYPE_F:
+ dma->flags |= IORESOURCE_DMA_TYPEF;
+ break;
+ default:
+ /* Set a default value ? */
+ dma->flags |= IORESOURCE_DMA_COMPATIBLE;
+ pnp_err("Invalid DMA type");
+ }
+ switch (p->transfer) {
+ case ACPI_TRANSFER_8:
+ dma->flags |= IORESOURCE_DMA_8BIT;
+ break;
+ case ACPI_TRANSFER_8_16:
+ dma->flags |= IORESOURCE_DMA_8AND16BIT;
+ break;
+ case ACPI_TRANSFER_16:
+ dma->flags |= IORESOURCE_DMA_16BIT;
+ break;
+ default:
+ /* Set a default value ? */
+ dma->flags |= IORESOURCE_DMA_8AND16BIT;
+ pnp_err("Invalid DMA transfer type");
+ }
+
+ 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->number_of_interrupts == 0)
+ return;
+ irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
+ if (!irq)
+ return;
+
+ for(i = 0; i < p->number_of_interrupts; i++)
+ if (p->interrupts[i])
+ __set_bit(p->interrupts[i], irq->map);
+ irq->flags = irq_flags(p->edge_level, p->active_high_low);
+
+ pnp_register_irq_resource(option, irq);
+ return;
+}
+
+static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
+ struct acpi_resource_ext_irq *p)
+{
+ int i;
+ struct pnp_irq * irq;
+
+ if (p->number_of_interrupts == 0)
+ return;
+ irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
+ if (!irq)
+ return;
+
+ for(i = 0; i < p->number_of_interrupts; i++)
+ if (p->interrupts[i])
+ __set_bit(p->interrupts[i], irq->map);
+ irq->flags = irq_flags(p->edge_level, p->active_high_low);
+
+ 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->range_length == 0)
+ return;
+ port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
+ if (!port)
+ return;
+ port->min = io->min_base_address;
+ port->max = io->max_base_address;
+ port->align = io->alignment;
+ port->size = io->range_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->range_length == 0)
+ return;
+ port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
+ if (!port)
+ return;
+ port->min = port->max = io->base_address;
+ port->size = io->range_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_mem24 *p)
+{
+ struct pnp_mem * mem;
+
+ if (p->range_length == 0)
+ return;
+ mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = p->min_base_address;
+ mem->max = p->max_base_address;
+ mem->align = p->alignment;
+ mem->size = p->range_length;
+
+ mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
+ IORESOURCE_MEM_WRITEABLE : 0;
+
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+static void
+pnpacpi_parse_mem32_option(struct pnp_option *option,
+ struct acpi_resource_mem32 *p)
+{
+ struct pnp_mem * mem;
+
+ if (p->range_length == 0)
+ return;
+ mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = p->min_base_address;
+ mem->max = p->max_base_address;
+ mem->align = p->alignment;
+ mem->size = p->range_length;
+
+ mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
+ 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_mem32 *p)
+{
+ struct pnp_mem * mem;
+
+ if (p->range_length == 0)
+ return;
+ mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = mem->max = p->range_base_address;
+ mem->size = p->range_length;
+ mem->align = 0;
+
+ mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
+ IORESOURCE_MEM_WRITEABLE : 0;
+
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+struct acpipnp_parse_option_s {
+ struct pnp_option *option;
+ 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->id) {
+ case ACPI_RSTYPE_IRQ:
+ pnpacpi_parse_irq_option(option, &res->data.irq);
+ break;
+ case ACPI_RSTYPE_EXT_IRQ:
+ pnpacpi_parse_ext_irq_option(option,
+ &res->data.extended_irq);
+ break;
+ case ACPI_RSTYPE_DMA:
+ pnpacpi_parse_dma_option(option, &res->data.dma);
+ break;
+ case ACPI_RSTYPE_IO:
+ pnpacpi_parse_port_option(option, &res->data.io);
+ break;
+ case ACPI_RSTYPE_FIXED_IO:
+ pnpacpi_parse_fixed_port_option(option,
+ &res->data.fixed_io);
+ break;
+ case ACPI_RSTYPE_MEM24:
+ pnpacpi_parse_mem24_option(option, &res->data.memory24);
+ break;
+ case ACPI_RSTYPE_MEM32:
+ pnpacpi_parse_mem32_option(option, &res->data.memory32);
+ break;
+ case ACPI_RSTYPE_FIXED_MEM32:
+ pnpacpi_parse_fixed_mem32_option(option,
+ &res->data.fixed_memory32);
+ break;
+ case ACPI_RSTYPE_START_DPF:
+ 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_RSTYPE_END_DPF:
+ return AE_CTRL_TERMINATE;
+ default:
+ pnp_warn("PnPACPI: unknown resource type %d", res->id);
+ 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.dev = dev;
+ status = acpi_walk_resources(handle, METHOD_NAME__PRS,
+ pnpacpi_option_resource, &parse_data);
+
+ return status;
+}
+
+/*
+ * Set resource
+ */
+static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
+ void *data)
+{
+ int *res_cnt = (int *)data;
+ switch (res->id) {
+ case ACPI_RSTYPE_IRQ:
+ case ACPI_RSTYPE_EXT_IRQ:
+ case ACPI_RSTYPE_DMA:
+ case ACPI_RSTYPE_IO:
+ case ACPI_RSTYPE_FIXED_IO:
+ case ACPI_RSTYPE_MEM24:
+ case ACPI_RSTYPE_MEM32:
+ case ACPI_RSTYPE_FIXED_MEM32:
+#if 0
+ case ACPI_RSTYPE_ADDRESS16:
+ case ACPI_RSTYPE_ADDRESS32:
+ case ACPI_RSTYPE_ADDRESS64:
+#endif
+ (*res_cnt) ++;
+ default:
+ return AE_OK;
+ }
+ return AE_OK;
+}
+
+static acpi_status pnpacpi_type_resources(struct acpi_resource *res,
+ void *data)
+{
+ struct acpi_resource **resource = (struct acpi_resource **)data;
+ switch (res->id) {
+ case ACPI_RSTYPE_IRQ:
+ case ACPI_RSTYPE_EXT_IRQ:
+ case ACPI_RSTYPE_DMA:
+ case ACPI_RSTYPE_IO:
+ case ACPI_RSTYPE_FIXED_IO:
+ case ACPI_RSTYPE_MEM24:
+ case ACPI_RSTYPE_MEM32:
+ case ACPI_RSTYPE_FIXED_MEM32:
+#if 0
+ case ACPI_RSTYPE_ADDRESS16:
+ case ACPI_RSTYPE_ADDRESS32:
+ case ACPI_RSTYPE_ADDRESS64:
+#endif
+ (*resource)->id = res->id;
+ (*resource)++;
+ default:
+ return AE_OK;
+ }
+
+ 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 = pnpacpi_kmalloc(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->id = ACPI_RSTYPE_END_TAG;
+
+ return 0;
+}
+
+static void pnpacpi_encode_irq(struct acpi_resource *resource,
+ struct resource *p)
+{
+ int edge_level, active_high_low;
+
+ decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level,
+ &active_high_low);
+ resource->id = ACPI_RSTYPE_IRQ;
+ resource->length = sizeof(struct acpi_resource);
+ resource->data.irq.edge_level = edge_level;
+ resource->data.irq.active_high_low = active_high_low;
+ if (edge_level == ACPI_EDGE_SENSITIVE)
+ resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
+ else
+ resource->data.irq.shared_exclusive = ACPI_SHARED;
+ resource->data.irq.number_of_interrupts = 1;
+ resource->data.irq.interrupts[0] = p->start;
+}
+
+static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
+ struct resource *p)
+{
+ int edge_level, active_high_low;
+
+ decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level,
+ &active_high_low);
+ resource->id = ACPI_RSTYPE_EXT_IRQ;
+ resource->length = sizeof(struct acpi_resource);
+ resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
+ resource->data.extended_irq.edge_level = edge_level;
+ resource->data.extended_irq.active_high_low = active_high_low;
+ if (edge_level == ACPI_EDGE_SENSITIVE)
+ resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
+ else
+ resource->data.irq.shared_exclusive = ACPI_SHARED;
+ resource->data.extended_irq.number_of_interrupts = 1;
+ resource->data.extended_irq.interrupts[0] = p->start;
+}
+
+static void pnpacpi_encode_dma(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_DMA;
+ resource->length = sizeof(struct acpi_resource);
+ /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
+ if (p->flags & IORESOURCE_DMA_COMPATIBLE)
+ resource->data.dma.type = ACPI_COMPATIBILITY;
+ else if (p->flags & IORESOURCE_DMA_TYPEA)
+ resource->data.dma.type = ACPI_TYPE_A;
+ else if (p->flags & IORESOURCE_DMA_TYPEB)
+ resource->data.dma.type = ACPI_TYPE_B;
+ else if (p->flags & IORESOURCE_DMA_TYPEF)
+ resource->data.dma.type = ACPI_TYPE_F;
+ if (p->flags & IORESOURCE_DMA_8BIT)
+ resource->data.dma.transfer = ACPI_TRANSFER_8;
+ else if (p->flags & IORESOURCE_DMA_8AND16BIT)
+ resource->data.dma.transfer = ACPI_TRANSFER_8_16;
+ else if (p->flags & IORESOURCE_DMA_16BIT)
+ resource->data.dma.transfer = ACPI_TRANSFER_16;
+ resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER;
+ resource->data.dma.number_of_channels = 1;
+ resource->data.dma.channels[0] = p->start;
+}
+
+static void pnpacpi_encode_io(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_IO;
+ resource->length = sizeof(struct acpi_resource);
+ /* 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.min_base_address = p->start;
+ resource->data.io.max_base_address = p->end;
+ resource->data.io.alignment = 0; /* Correct? */
+ resource->data.io.range_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_FIXED_IO;
+ resource->length = sizeof(struct acpi_resource);
+ resource->data.fixed_io.base_address = p->start;
+ resource->data.fixed_io.range_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_mem24(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_MEM24;
+ resource->length = sizeof(struct acpi_resource);
+ /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
+ resource->data.memory24.read_write_attribute =
+ (p->flags & IORESOURCE_MEM_WRITEABLE) ?
+ ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+ resource->data.memory24.min_base_address = p->start;
+ resource->data.memory24.max_base_address = p->end;
+ resource->data.memory24.alignment = 0;
+ resource->data.memory24.range_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_mem32(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_MEM32;
+ resource->length = sizeof(struct acpi_resource);
+ resource->data.memory32.read_write_attribute =
+ (p->flags & IORESOURCE_MEM_WRITEABLE) ?
+ ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+ resource->data.memory32.min_base_address = p->start;
+ resource->data.memory32.max_base_address = p->end;
+ resource->data.memory32.alignment = 0;
+ resource->data.memory32.range_length = p->end - p->start + 1;
+}
+
+static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
+ struct resource *p)
+{
+ resource->id = ACPI_RSTYPE_FIXED_MEM32;
+ resource->length = sizeof(struct acpi_resource);
+ resource->data.fixed_memory32.read_write_attribute =
+ (p->flags & IORESOURCE_MEM_WRITEABLE) ?
+ ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
+ resource->data.fixed_memory32.range_base_address = p->start;
+ resource->data.fixed_memory32.range_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->id) {
+ case ACPI_RSTYPE_IRQ:
+ pnp_dbg("Encode irq");
+ pnpacpi_encode_irq(resource,
+ &res_table->irq_resource[irq]);
+ irq++;
+ break;
+
+ case ACPI_RSTYPE_EXT_IRQ:
+ pnp_dbg("Encode ext irq");
+ pnpacpi_encode_ext_irq(resource,
+ &res_table->irq_resource[irq]);
+ irq++;
+ break;
+ case ACPI_RSTYPE_DMA:
+ pnp_dbg("Encode dma");
+ pnpacpi_encode_dma(resource,
+ &res_table->dma_resource[dma]);
+ dma ++;
+ break;
+ case ACPI_RSTYPE_IO:
+ pnp_dbg("Encode io");
+ pnpacpi_encode_io(resource,
+ &res_table->port_resource[port]);
+ port ++;
+ break;
+ case ACPI_RSTYPE_FIXED_IO:
+ pnp_dbg("Encode fixed io");
+ pnpacpi_encode_fixed_io(resource,
+ &res_table->port_resource[port]);
+ port ++;
+ break;
+ case ACPI_RSTYPE_MEM24:
+ pnp_dbg("Encode mem24");
+ pnpacpi_encode_mem24(resource,
+ &res_table->mem_resource[mem]);
+ mem ++;
+ break;
+ case ACPI_RSTYPE_MEM32:
+ pnp_dbg("Encode mem32");
+ pnpacpi_encode_mem32(resource,
+ &res_table->mem_resource[mem]);
+ mem ++;
+ break;
+ case ACPI_RSTYPE_FIXED_MEM32:
+ pnp_dbg("Encode fixed mem32");
+ pnpacpi_encode_fixed_mem32(resource,
+ &res_table->mem_resource[mem]);
+ mem ++;
+ break;
+ default: /* other type */
+ pnp_warn("unknown resource type %d", resource->id);
+ return -EINVAL;
+ }
+ resource ++;
+ i ++;
+ }
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 20:55:23 +0000