Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/pnp/Kconfig b/drivers/pnp/Kconfig
new file mode 100644
index 0000000..6776308
--- /dev/null
+++ b/drivers/pnp/Kconfig
@@ -0,0 +1,41 @@
+#
+# Plug and Play configuration
+#
+
+menu "Plug and Play support"
+
+config PNP
+ bool "Plug and Play support"
+ depends on ISA || ACPI_BUS
+ ---help---
+ Plug and Play (PnP) is a standard for peripherals which allows those
+ peripherals to be configured by software, e.g. assign IRQ's or other
+ parameters. No jumpers on the cards are needed, instead the values
+ are provided to the cards from the BIOS, from the operating system,
+ or using a user-space utility.
+
+ Say Y here if you would like Linux to configure your Plug and Play
+ devices. You should then also say Y to all of the protocols below.
+ Alternatively, you can say N here and configure your PnP devices
+ using user space utilities such as the isapnptools package.
+
+ If unsure, say Y.
+
+config PNP_DEBUG
+ bool "PnP Debug Messages"
+ depends on PNP
+ help
+ Say Y if you want the Plug and Play Layer to print debug messages.
+ This is useful if you are developing a PnP driver or troubleshooting.
+
+comment "Protocols"
+ depends on PNP
+
+source "drivers/pnp/isapnp/Kconfig"
+
+source "drivers/pnp/pnpbios/Kconfig"
+
+source "drivers/pnp/pnpacpi/Kconfig"
+
+endmenu
+
diff --git a/drivers/pnp/Makefile b/drivers/pnp/Makefile
new file mode 100644
index 0000000..a381a92
--- /dev/null
+++ b/drivers/pnp/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for the Linux Plug-and-Play Support.
+#
+
+obj-y := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o system.o
+
+obj-$(CONFIG_PNPACPI) += pnpacpi/
+obj-$(CONFIG_PNPBIOS) += pnpbios/
+obj-$(CONFIG_ISAPNP) += isapnp/
diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
new file mode 100644
index 0000000..6b8c4cf
--- /dev/null
+++ b/drivers/pnp/base.h
@@ -0,0 +1,13 @@
+extern struct bus_type pnp_bus_type;
+extern spinlock_t pnp_lock;
+void *pnp_alloc(long size);
+int pnp_interface_attach_device(struct pnp_dev *dev);
+void pnp_fixup_device(struct pnp_dev *dev);
+void pnp_free_option(struct pnp_option *option);
+int __pnp_add_device(struct pnp_dev *dev);
+void __pnp_remove_device(struct pnp_dev *dev);
+
+int pnp_check_port(struct pnp_dev * dev, int idx);
+int pnp_check_mem(struct pnp_dev * dev, int idx);
+int pnp_check_irq(struct pnp_dev * dev, int idx);
+int pnp_check_dma(struct pnp_dev * dev, int idx);
diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
new file mode 100644
index 0000000..97eeecf
--- /dev/null
+++ b/drivers/pnp/card.c
@@ -0,0 +1,391 @@
+/*
+ * card.c - contains functions for managing groups of PnP devices
+ *
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#include <linux/pnp.h>
+#include "base.h"
+
+LIST_HEAD(pnp_cards);
+LIST_HEAD(pnp_card_drivers);
+
+
+static const struct pnp_card_device_id * match_card(struct pnp_card_driver * drv, struct pnp_card * card)
+{
+ const struct pnp_card_device_id * drv_id = drv->id_table;
+ while (*drv_id->id){
+ if (compare_pnp_id(card->id,drv_id->id)) {
+ int i = 0;
+ for (;;) {
+ int found;
+ struct pnp_dev *dev;
+ if (i == PNP_MAX_DEVICES || ! *drv_id->devs[i].id)
+ return drv_id;
+ found = 0;
+ card_for_each_dev(card, dev) {
+ if (compare_pnp_id(dev->id, drv_id->devs[i].id)) {
+ found = 1;
+ break;
+ }
+ }
+ if (! found)
+ break;
+ i++;
+ }
+ }
+ drv_id++;
+ }
+ return NULL;
+}
+
+static void card_remove(struct pnp_dev * dev)
+{
+ dev->card_link = NULL;
+}
+
+static void card_remove_first(struct pnp_dev * dev)
+{
+ struct pnp_card_driver * drv = to_pnp_card_driver(dev->driver);
+ if (!dev->card || !drv)
+ return;
+ if (drv->remove)
+ drv->remove(dev->card_link);
+ drv->link.remove = &card_remove;
+ kfree(dev->card_link);
+ card_remove(dev);
+}
+
+static int card_probe(struct pnp_card * card, struct pnp_card_driver * drv)
+{
+ const struct pnp_card_device_id *id = match_card(drv,card);
+ if (id) {
+ struct pnp_card_link * clink = pnp_alloc(sizeof(struct pnp_card_link));
+ if (!clink)
+ return 0;
+ clink->card = card;
+ clink->driver = drv;
+ if (drv->probe) {
+ if (drv->probe(clink, id)>=0)
+ return 1;
+ else {
+ struct pnp_dev * dev;
+ card_for_each_dev(card, dev) {
+ if (dev->card_link == clink)
+ pnp_release_card_device(dev);
+ }
+ kfree(clink);
+ }
+ } else
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * pnp_add_card_id - adds an EISA id to the specified card
+ * @id: pointer to a pnp_id structure
+ * @card: pointer to the desired card
+ *
+ */
+
+int pnp_add_card_id(struct pnp_id *id, struct pnp_card * card)
+{
+ struct pnp_id * ptr;
+ if (!id)
+ return -EINVAL;
+ if (!card)
+ return -EINVAL;
+ id->next = NULL;
+ ptr = card->id;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = id;
+ else
+ card->id = id;
+ return 0;
+}
+
+static void pnp_free_card_ids(struct pnp_card * card)
+{
+ struct pnp_id * id;
+ struct pnp_id *next;
+ if (!card)
+ return;
+ id = card->id;
+ while (id) {
+ next = id->next;
+ kfree(id);
+ id = next;
+ }
+}
+
+static void pnp_release_card(struct device *dmdev)
+{
+ struct pnp_card * card = to_pnp_card(dmdev);
+ pnp_free_card_ids(card);
+ kfree(card);
+}
+
+
+static ssize_t pnp_show_card_name(struct device *dmdev, char *buf)
+{
+ char *str = buf;
+ struct pnp_card *card = to_pnp_card(dmdev);
+ str += sprintf(str,"%s\n", card->name);
+ return (str - buf);
+}
+
+static DEVICE_ATTR(name,S_IRUGO,pnp_show_card_name,NULL);
+
+static ssize_t pnp_show_card_ids(struct device *dmdev, char *buf)
+{
+ char *str = buf;
+ struct pnp_card *card = to_pnp_card(dmdev);
+ struct pnp_id * pos = card->id;
+
+ while (pos) {
+ str += sprintf(str,"%s\n", pos->id);
+ pos = pos->next;
+ }
+ return (str - buf);
+}
+
+static DEVICE_ATTR(card_id,S_IRUGO,pnp_show_card_ids,NULL);
+
+static int pnp_interface_attach_card(struct pnp_card *card)
+{
+ device_create_file(&card->dev,&dev_attr_name);
+ device_create_file(&card->dev,&dev_attr_card_id);
+ return 0;
+}
+
+/**
+ * pnp_add_card - adds a PnP card to the PnP Layer
+ * @card: pointer to the card to add
+ */
+
+int pnp_add_card(struct pnp_card * card)
+{
+ int error;
+ struct list_head * pos, * temp;
+ if (!card || !card->protocol)
+ return -EINVAL;
+
+ sprintf(card->dev.bus_id, "%02x:%02x", card->protocol->number, card->number);
+ card->dev.parent = &card->protocol->dev;
+ card->dev.bus = NULL;
+ card->dev.release = &pnp_release_card;
+ error = device_register(&card->dev);
+
+ if (error == 0) {
+ pnp_interface_attach_card(card);
+ spin_lock(&pnp_lock);
+ list_add_tail(&card->global_list, &pnp_cards);
+ list_add_tail(&card->protocol_list, &card->protocol->cards);
+ spin_unlock(&pnp_lock);
+
+ /* we wait until now to add devices in order to ensure the drivers
+ * will be able to use all of the related devices on the card
+ * without waiting any unresonable length of time */
+ list_for_each(pos,&card->devices){
+ struct pnp_dev *dev = card_to_pnp_dev(pos);
+ __pnp_add_device(dev);
+ }
+
+ /* match with card drivers */
+ list_for_each_safe(pos,temp,&pnp_card_drivers){
+ struct pnp_card_driver * drv = list_entry(pos, struct pnp_card_driver, global_list);
+ card_probe(card,drv);
+ }
+ } else
+ pnp_err("sysfs failure, card '%s' will be unavailable", card->dev.bus_id);
+ return error;
+}
+
+/**
+ * pnp_remove_card - removes a PnP card from the PnP Layer
+ * @card: pointer to the card to remove
+ */
+
+void pnp_remove_card(struct pnp_card * card)
+{
+ struct list_head *pos, *temp;
+ if (!card)
+ return;
+ device_unregister(&card->dev);
+ spin_lock(&pnp_lock);
+ list_del(&card->global_list);
+ list_del(&card->protocol_list);
+ spin_unlock(&pnp_lock);
+ list_for_each_safe(pos,temp,&card->devices){
+ struct pnp_dev *dev = card_to_pnp_dev(pos);
+ pnp_remove_card_device(dev);
+ }
+}
+
+/**
+ * pnp_add_card_device - adds a device to the specified card
+ * @card: pointer to the card to add to
+ * @dev: pointer to the device to add
+ */
+
+int pnp_add_card_device(struct pnp_card * card, struct pnp_dev * dev)
+{
+ if (!card || !dev || !dev->protocol)
+ return -EINVAL;
+ dev->dev.parent = &card->dev;
+ dev->card_link = NULL;
+ snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%02x:%02x.%02x", dev->protocol->number,
+ card->number,dev->number);
+ spin_lock(&pnp_lock);
+ dev->card = card;
+ list_add_tail(&dev->card_list, &card->devices);
+ spin_unlock(&pnp_lock);
+ return 0;
+}
+
+/**
+ * pnp_remove_card_device- removes a device from the specified card
+ * @card: pointer to the card to remove from
+ * @dev: pointer to the device to remove
+ */
+
+void pnp_remove_card_device(struct pnp_dev * dev)
+{
+ spin_lock(&pnp_lock);
+ dev->card = NULL;
+ list_del(&dev->card_list);
+ spin_unlock(&pnp_lock);
+ __pnp_remove_device(dev);
+}
+
+/**
+ * pnp_request_card_device - Searches for a PnP device under the specified card
+ * @lcard: pointer to the card link, cannot be NULL
+ * @id: pointer to a PnP ID structure that explains the rules for finding the device
+ * @from: Starting place to search from. If NULL it will start from the begining.
+ */
+
+struct pnp_dev * pnp_request_card_device(struct pnp_card_link *clink, const char * id, struct pnp_dev * from)
+{
+ struct list_head * pos;
+ struct pnp_dev * dev;
+ struct pnp_card_driver * drv;
+ struct pnp_card * card;
+ if (!clink || !id)
+ goto done;
+ card = clink->card;
+ drv = clink->driver;
+ if (!from) {
+ pos = card->devices.next;
+ } else {
+ if (from->card != card)
+ goto done;
+ pos = from->card_list.next;
+ }
+ while (pos != &card->devices) {
+ dev = card_to_pnp_dev(pos);
+ if ((!dev->card_link) && compare_pnp_id(dev->id,id))
+ goto found;
+ pos = pos->next;
+ }
+
+done:
+ return NULL;
+
+found:
+ down_write(&dev->dev.bus->subsys.rwsem);
+ dev->card_link = clink;
+ dev->dev.driver = &drv->link.driver;
+ if (drv->link.driver.probe) {
+ if (drv->link.driver.probe(&dev->dev)) {
+ dev->dev.driver = NULL;
+ return NULL;
+ }
+ }
+ device_bind_driver(&dev->dev);
+ up_write(&dev->dev.bus->subsys.rwsem);
+
+ return dev;
+}
+
+/**
+ * pnp_release_card_device - call this when the driver no longer needs the device
+ * @dev: pointer to the PnP device stucture
+ */
+
+void pnp_release_card_device(struct pnp_dev * dev)
+{
+ struct pnp_card_driver * drv = dev->card_link->driver;
+ if (!drv)
+ return;
+ down_write(&dev->dev.bus->subsys.rwsem);
+ drv->link.remove = &card_remove;
+ device_release_driver(&dev->dev);
+ drv->link.remove = &card_remove_first;
+ up_write(&dev->dev.bus->subsys.rwsem);
+}
+
+/**
+ * pnp_register_card_driver - registers a PnP card driver with the PnP Layer
+ * @drv: pointer to the driver to register
+ */
+
+int pnp_register_card_driver(struct pnp_card_driver * drv)
+{
+ int count = 0;
+ struct list_head *pos, *temp;
+
+ drv->link.name = drv->name;
+ drv->link.id_table = NULL; /* this will disable auto matching */
+ drv->link.flags = drv->flags;
+ drv->link.probe = NULL;
+ drv->link.remove = &card_remove_first;
+
+ spin_lock(&pnp_lock);
+ list_add_tail(&drv->global_list, &pnp_card_drivers);
+ spin_unlock(&pnp_lock);
+ pnp_register_driver(&drv->link);
+
+ list_for_each_safe(pos,temp,&pnp_cards){
+ struct pnp_card *card = list_entry(pos, struct pnp_card, global_list);
+ count += card_probe(card,drv);
+ }
+ return count;
+}
+
+/**
+ * pnp_unregister_card_driver - unregisters a PnP card driver from the PnP Layer
+ * @drv: pointer to the driver to unregister
+ */
+
+void pnp_unregister_card_driver(struct pnp_card_driver * drv)
+{
+ spin_lock(&pnp_lock);
+ list_del(&drv->global_list);
+ spin_unlock(&pnp_lock);
+ pnp_unregister_driver(&drv->link);
+}
+
+EXPORT_SYMBOL(pnp_add_card);
+EXPORT_SYMBOL(pnp_remove_card);
+EXPORT_SYMBOL(pnp_add_card_device);
+EXPORT_SYMBOL(pnp_remove_card_device);
+EXPORT_SYMBOL(pnp_add_card_id);
+EXPORT_SYMBOL(pnp_request_card_device);
+EXPORT_SYMBOL(pnp_release_card_device);
+EXPORT_SYMBOL(pnp_register_card_driver);
+EXPORT_SYMBOL(pnp_unregister_card_driver);
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
new file mode 100644
index 0000000..deed92459
--- /dev/null
+++ b/drivers/pnp/core.c
@@ -0,0 +1,180 @@
+/*
+ * core.c - contains all core device and protocol registration functions
+ *
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/pnp.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+
+#include "base.h"
+
+
+static LIST_HEAD(pnp_protocols);
+LIST_HEAD(pnp_global);
+DEFINE_SPINLOCK(pnp_lock);
+
+void *pnp_alloc(long size)
+{
+ void *result;
+
+ result = kmalloc(size, GFP_KERNEL);
+ if (!result){
+ printk(KERN_ERR "pnp: Out of Memory\n");
+ return NULL;
+ }
+ memset(result, 0, size);
+ return result;
+}
+
+/**
+ * pnp_protocol_register - adds a pnp protocol to the pnp layer
+ * @protocol: pointer to the corresponding pnp_protocol structure
+ *
+ * Ex protocols: ISAPNP, PNPBIOS, etc
+ */
+
+int pnp_register_protocol(struct pnp_protocol *protocol)
+{
+ int nodenum;
+ struct list_head * pos;
+
+ if (!protocol)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&protocol->devices);
+ INIT_LIST_HEAD(&protocol->cards);
+ nodenum = 0;
+ spin_lock(&pnp_lock);
+
+ /* assign the lowest unused number */
+ list_for_each(pos,&pnp_protocols) {
+ struct pnp_protocol * cur = to_pnp_protocol(pos);
+ if (cur->number == nodenum){
+ pos = &pnp_protocols;
+ nodenum++;
+ }
+ }
+
+ list_add_tail(&protocol->protocol_list, &pnp_protocols);
+ spin_unlock(&pnp_lock);
+
+ protocol->number = nodenum;
+ sprintf(protocol->dev.bus_id, "pnp%d", nodenum);
+ return device_register(&protocol->dev);
+}
+
+/**
+ * pnp_protocol_unregister - removes a pnp protocol from the pnp layer
+ * @protocol: pointer to the corresponding pnp_protocol structure
+ *
+ */
+void pnp_unregister_protocol(struct pnp_protocol *protocol)
+{
+ spin_lock(&pnp_lock);
+ list_del(&protocol->protocol_list);
+ spin_unlock(&pnp_lock);
+ device_unregister(&protocol->dev);
+}
+
+
+static void pnp_free_ids(struct pnp_dev *dev)
+{
+ struct pnp_id * id;
+ struct pnp_id * next;
+ if (!dev)
+ return;
+ id = dev->id;
+ while (id) {
+ next = id->next;
+ kfree(id);
+ id = next;
+ }
+}
+
+static void pnp_release_device(struct device *dmdev)
+{
+ struct pnp_dev * dev = to_pnp_dev(dmdev);
+ pnp_free_option(dev->independent);
+ pnp_free_option(dev->dependent);
+ pnp_free_ids(dev);
+ kfree(dev);
+}
+
+int __pnp_add_device(struct pnp_dev *dev)
+{
+ int ret;
+ pnp_fixup_device(dev);
+ dev->dev.bus = &pnp_bus_type;
+ dev->dev.release = &pnp_release_device;
+ dev->status = PNP_READY;
+ spin_lock(&pnp_lock);
+ list_add_tail(&dev->global_list, &pnp_global);
+ list_add_tail(&dev->protocol_list, &dev->protocol->devices);
+ spin_unlock(&pnp_lock);
+
+ ret = device_register(&dev->dev);
+ if (ret == 0)
+ pnp_interface_attach_device(dev);
+ return ret;
+}
+
+/*
+ * pnp_add_device - adds a pnp device to the pnp layer
+ * @dev: pointer to dev to add
+ *
+ * adds to driver model, name database, fixups, interface, etc.
+ */
+
+int pnp_add_device(struct pnp_dev *dev)
+{
+ if (!dev || !dev->protocol || dev->card)
+ return -EINVAL;
+ dev->dev.parent = &dev->protocol->dev;
+ sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number, dev->number);
+ return __pnp_add_device(dev);
+}
+
+void __pnp_remove_device(struct pnp_dev *dev)
+{
+ spin_lock(&pnp_lock);
+ list_del(&dev->global_list);
+ list_del(&dev->protocol_list);
+ spin_unlock(&pnp_lock);
+ device_unregister(&dev->dev);
+}
+
+/**
+ * pnp_remove_device - removes a pnp device from the pnp layer
+ * @dev: pointer to dev to add
+ *
+ * this function will free all mem used by dev
+ */
+
+void pnp_remove_device(struct pnp_dev *dev)
+{
+ if (!dev || dev->card)
+ return;
+ __pnp_remove_device(dev);
+}
+
+static int __init pnp_init(void)
+{
+ printk(KERN_INFO "Linux Plug and Play Support v0.97 (c) Adam Belay\n");
+ return bus_register(&pnp_bus_type);
+}
+
+subsys_initcall(pnp_init);
+
+EXPORT_SYMBOL(pnp_register_protocol);
+EXPORT_SYMBOL(pnp_unregister_protocol);
+EXPORT_SYMBOL(pnp_add_device);
+EXPORT_SYMBOL(pnp_remove_device);
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
new file mode 100644
index 0000000..d64c1ca
--- /dev/null
+++ b/drivers/pnp/driver.c
@@ -0,0 +1,222 @@
+/*
+ * driver.c - device id matching, driver model, etc.
+ *
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#include <linux/pnp.h>
+#include "base.h"
+
+static int compare_func(const char *ida, const char *idb)
+{
+ int i;
+ /* we only need to compare the last 4 chars */
+ for (i=3; i<7; i++)
+ {
+ if (ida[i] != 'X' &&
+ idb[i] != 'X' &&
+ toupper(ida[i]) != toupper(idb[i]))
+ return 0;
+ }
+ return 1;
+}
+
+int compare_pnp_id(struct pnp_id *pos, const char *id)
+{
+ if (!pos || !id || (strlen(id) != 7))
+ return 0;
+ if (memcmp(id,"ANYDEVS",7)==0)
+ return 1;
+ while (pos){
+ if (memcmp(pos->id,id,3)==0)
+ if (compare_func(pos->id,id)==1)
+ return 1;
+ pos = pos->next;
+ }
+ return 0;
+}
+
+static const struct pnp_device_id * match_device(struct pnp_driver *drv, struct pnp_dev *dev)
+{
+ const struct pnp_device_id *drv_id = drv->id_table;
+ if (!drv_id)
+ return NULL;
+
+ while (*drv_id->id) {
+ if (compare_pnp_id(dev->id, drv_id->id))
+ return drv_id;
+ drv_id++;
+ }
+ return NULL;
+}
+
+int pnp_device_attach(struct pnp_dev *pnp_dev)
+{
+ spin_lock(&pnp_lock);
+ if(pnp_dev->status != PNP_READY){
+ spin_unlock(&pnp_lock);
+ return -EBUSY;
+ }
+ pnp_dev->status = PNP_ATTACHED;
+ spin_unlock(&pnp_lock);
+ return 0;
+}
+
+void pnp_device_detach(struct pnp_dev *pnp_dev)
+{
+ spin_lock(&pnp_lock);
+ if (pnp_dev->status == PNP_ATTACHED)
+ pnp_dev->status = PNP_READY;
+ spin_unlock(&pnp_lock);
+ pnp_disable_dev(pnp_dev);
+}
+
+static int pnp_device_probe(struct device *dev)
+{
+ int error;
+ struct pnp_driver *pnp_drv;
+ struct pnp_dev *pnp_dev;
+ const struct pnp_device_id *dev_id = NULL;
+ pnp_dev = to_pnp_dev(dev);
+ pnp_drv = to_pnp_driver(dev->driver);
+
+ pnp_dbg("match found with the PnP device '%s' and the driver '%s'", dev->bus_id,pnp_drv->name);
+
+ error = pnp_device_attach(pnp_dev);
+ if (error < 0)
+ return error;
+
+ if (pnp_dev->active == 0) {
+ if (!(pnp_drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE)) {
+ error = pnp_activate_dev(pnp_dev);
+ if (error < 0)
+ return error;
+ }
+ } else if ((pnp_drv->flags & PNP_DRIVER_RES_DISABLE)
+ == PNP_DRIVER_RES_DISABLE) {
+ error = pnp_disable_dev(pnp_dev);
+ if (error < 0)
+ return error;
+ }
+ error = 0;
+ if (pnp_drv->probe) {
+ dev_id = match_device(pnp_drv, pnp_dev);
+ if (dev_id != NULL)
+ error = pnp_drv->probe(pnp_dev, dev_id);
+ }
+ if (error >= 0){
+ pnp_dev->driver = pnp_drv;
+ error = 0;
+ } else
+ goto fail;
+ return error;
+
+fail:
+ pnp_device_detach(pnp_dev);
+ return error;
+}
+
+static int pnp_device_remove(struct device *dev)
+{
+ struct pnp_dev * pnp_dev = to_pnp_dev(dev);
+ struct pnp_driver * drv = pnp_dev->driver;
+
+ if (drv) {
+ if (drv->remove)
+ drv->remove(pnp_dev);
+ pnp_dev->driver = NULL;
+ }
+ pnp_device_detach(pnp_dev);
+ return 0;
+}
+
+static int pnp_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct pnp_dev * pnp_dev = to_pnp_dev(dev);
+ struct pnp_driver * pnp_drv = to_pnp_driver(drv);
+ if (match_device(pnp_drv, pnp_dev) == NULL)
+ return 0;
+ return 1;
+}
+
+
+struct bus_type pnp_bus_type = {
+ .name = "pnp",
+ .match = pnp_bus_match,
+};
+
+
+int pnp_register_driver(struct pnp_driver *drv)
+{
+ int count;
+ struct list_head *pos;
+
+ pnp_dbg("the driver '%s' has been registered", drv->name);
+
+ drv->driver.name = drv->name;
+ drv->driver.bus = &pnp_bus_type;
+ drv->driver.probe = pnp_device_probe;
+ drv->driver.remove = pnp_device_remove;
+
+ count = driver_register(&drv->driver);
+
+ /* get the number of initial matches */
+ if (count >= 0){
+ count = 0;
+ list_for_each(pos,&drv->driver.devices){
+ count++;
+ }
+ }
+ return count;
+}
+
+void pnp_unregister_driver(struct pnp_driver *drv)
+{
+ driver_unregister(&drv->driver);
+ pnp_dbg("the driver '%s' has been unregistered", drv->name);
+}
+
+/**
+ * pnp_add_id - adds an EISA id to the specified device
+ * @id: pointer to a pnp_id structure
+ * @dev: pointer to the desired device
+ *
+ */
+
+int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
+{
+ struct pnp_id *ptr;
+ if (!id)
+ return -EINVAL;
+ if (!dev)
+ return -EINVAL;
+ id->next = NULL;
+ ptr = dev->id;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = id;
+ else
+ dev->id = id;
+ return 0;
+}
+
+EXPORT_SYMBOL(pnp_register_driver);
+EXPORT_SYMBOL(pnp_unregister_driver);
+EXPORT_SYMBOL(pnp_add_id);
+EXPORT_SYMBOL(pnp_device_attach);
+EXPORT_SYMBOL(pnp_device_detach);
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
new file mode 100644
index 0000000..53fac8ba
--- /dev/null
+++ b/drivers/pnp/interface.c
@@ -0,0 +1,468 @@
+/*
+ * interface.c - contains everything related to the user interface
+ *
+ * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@suse.cz>
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/pnp.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/stat.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <asm/uaccess.h>
+
+#include "base.h"
+
+struct pnp_info_buffer {
+ char *buffer; /* pointer to begin of buffer */
+ char *curr; /* current position in buffer */
+ unsigned long size; /* current size */
+ unsigned long len; /* total length of buffer */
+ int stop; /* stop flag */
+ int error; /* error code */
+};
+
+typedef struct pnp_info_buffer pnp_info_buffer_t;
+
+static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...)
+{
+ va_list args;
+ int res;
+
+ if (buffer->stop || buffer->error)
+ return 0;
+ va_start(args, fmt);
+ res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
+ va_end(args);
+ if (buffer->size + res >= buffer->len) {
+ buffer->stop = 1;
+ return 0;
+ }
+ buffer->curr += res;
+ buffer->size += res;
+ return res;
+}
+
+static void pnp_print_port(pnp_info_buffer_t *buffer, char *space, struct pnp_port *port)
+{
+ pnp_printf(buffer, "%sport 0x%x-0x%x, align 0x%x, size 0x%x, %i-bit address decoding\n",
+ space, port->min, port->max, port->align ? (port->align-1) : 0, port->size,
+ port->flags & PNP_PORT_FLAG_16BITADDR ? 16 : 10);
+}
+
+static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq *irq)
+{
+ int first = 1, i;
+
+ pnp_printf(buffer, "%sirq ", space);
+ for (i = 0; i < PNP_IRQ_NR; i++)
+ if (test_bit(i, irq->map)) {
+ if (!first) {
+ pnp_printf(buffer, ",");
+ } else {
+ first = 0;
+ }
+ if (i == 2 || i == 9)
+ pnp_printf(buffer, "2/9");
+ else
+ pnp_printf(buffer, "%i", i);
+ }
+ if (bitmap_empty(irq->map, PNP_IRQ_NR))
+ pnp_printf(buffer, "<none>");
+ if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
+ pnp_printf(buffer, " High-Edge");
+ if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
+ pnp_printf(buffer, " Low-Edge");
+ if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
+ pnp_printf(buffer, " High-Level");
+ if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
+ pnp_printf(buffer, " Low-Level");
+ pnp_printf(buffer, "\n");
+}
+
+static void pnp_print_dma(pnp_info_buffer_t *buffer, char *space, struct pnp_dma *dma)
+{
+ int first = 1, i;
+ char *s;
+
+ pnp_printf(buffer, "%sdma ", space);
+ for (i = 0; i < 8; i++)
+ if (dma->map & (1<<i)) {
+ if (!first) {
+ pnp_printf(buffer, ",");
+ } else {
+ first = 0;
+ }
+ pnp_printf(buffer, "%i", i);
+ }
+ if (!dma->map)
+ pnp_printf(buffer, "<none>");
+ switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
+ case IORESOURCE_DMA_8BIT:
+ s = "8-bit";
+ break;
+ case IORESOURCE_DMA_8AND16BIT:
+ s = "8-bit&16-bit";
+ break;
+ default:
+ s = "16-bit";
+ }
+ pnp_printf(buffer, " %s", s);
+ if (dma->flags & IORESOURCE_DMA_MASTER)
+ pnp_printf(buffer, " master");
+ if (dma->flags & IORESOURCE_DMA_BYTE)
+ pnp_printf(buffer, " byte-count");
+ if (dma->flags & IORESOURCE_DMA_WORD)
+ pnp_printf(buffer, " word-count");
+ switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
+ case IORESOURCE_DMA_TYPEA:
+ s = "type-A";
+ break;
+ case IORESOURCE_DMA_TYPEB:
+ s = "type-B";
+ break;
+ case IORESOURCE_DMA_TYPEF:
+ s = "type-F";
+ break;
+ default:
+ s = "compatible";
+ break;
+ }
+ pnp_printf(buffer, " %s\n", s);
+}
+
+static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem *mem)
+{
+ char *s;
+
+ pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x",
+ space, mem->min, mem->max, mem->align, mem->size);
+ if (mem->flags & IORESOURCE_MEM_WRITEABLE)
+ pnp_printf(buffer, ", writeable");
+ if (mem->flags & IORESOURCE_MEM_CACHEABLE)
+ pnp_printf(buffer, ", cacheable");
+ if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
+ pnp_printf(buffer, ", range-length");
+ if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
+ pnp_printf(buffer, ", shadowable");
+ if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
+ pnp_printf(buffer, ", expansion ROM");
+ switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
+ case IORESOURCE_MEM_8BIT:
+ s = "8-bit";
+ break;
+ case IORESOURCE_MEM_8AND16BIT:
+ s = "8-bit&16-bit";
+ break;
+ case IORESOURCE_MEM_32BIT:
+ s = "32-bit";
+ break;
+ default:
+ s = "16-bit";
+ }
+ pnp_printf(buffer, ", %s\n", s);
+}
+
+static void pnp_print_option(pnp_info_buffer_t *buffer, char *space,
+ struct pnp_option *option, int dep)
+{
+ char *s;
+ struct pnp_port *port;
+ struct pnp_irq *irq;
+ struct pnp_dma *dma;
+ struct pnp_mem *mem;
+
+ if (dep) {
+ switch (option->priority) {
+ case PNP_RES_PRIORITY_PREFERRED:
+ s = "preferred";
+ break;
+ case PNP_RES_PRIORITY_ACCEPTABLE:
+ s = "acceptable";
+ break;
+ case PNP_RES_PRIORITY_FUNCTIONAL:
+ s = "functional";
+ break;
+ default:
+ s = "invalid";
+ }
+ pnp_printf(buffer, "Dependent: %02i - Priority %s\n",dep, s);
+ }
+
+ for (port = option->port; port; port = port->next)
+ pnp_print_port(buffer, space, port);
+ for (irq = option->irq; irq; irq = irq->next)
+ pnp_print_irq(buffer, space, irq);
+ for (dma = option->dma; dma; dma = dma->next)
+ pnp_print_dma(buffer, space, dma);
+ for (mem = option->mem; mem; mem = mem->next)
+ pnp_print_mem(buffer, space, mem);
+}
+
+
+static ssize_t pnp_show_options(struct device *dmdev, char *buf)
+{
+ struct pnp_dev *dev = to_pnp_dev(dmdev);
+ struct pnp_option * independent = dev->independent;
+ struct pnp_option * dependent = dev->dependent;
+ int ret, dep = 1;
+
+ pnp_info_buffer_t *buffer = (pnp_info_buffer_t *)
+ pnp_alloc(sizeof(pnp_info_buffer_t));
+ if (!buffer)
+ return -ENOMEM;
+
+ buffer->len = PAGE_SIZE;
+ buffer->buffer = buf;
+ buffer->curr = buffer->buffer;
+ if (independent)
+ pnp_print_option(buffer, "", independent, 0);
+
+ while (dependent){
+ pnp_print_option(buffer, " ", dependent, dep);
+ dependent = dependent->next;
+ dep++;
+ }
+ ret = (buffer->curr - buf);
+ kfree(buffer);
+ return ret;
+}
+
+static DEVICE_ATTR(options,S_IRUGO,pnp_show_options,NULL);
+
+
+static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
+{
+ struct pnp_dev *dev = to_pnp_dev(dmdev);
+ int i, ret;
+ pnp_info_buffer_t *buffer;
+
+ if (!dev)
+ return -EINVAL;
+
+ buffer = (pnp_info_buffer_t *) pnp_alloc(sizeof(pnp_info_buffer_t));
+ if (!buffer)
+ return -ENOMEM;
+ buffer->len = PAGE_SIZE;
+ buffer->buffer = buf;
+ buffer->curr = buffer->buffer;
+
+ pnp_printf(buffer,"state = ");
+ if (dev->active)
+ pnp_printf(buffer,"active\n");
+ else
+ pnp_printf(buffer,"disabled\n");
+
+ for (i = 0; i < PNP_MAX_PORT; i++) {
+ if (pnp_port_valid(dev, i)) {
+ pnp_printf(buffer,"io");
+ if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED)
+ pnp_printf(buffer," disabled\n");
+ else
+ pnp_printf(buffer," 0x%lx-0x%lx\n",
+ pnp_port_start(dev, i),
+ pnp_port_end(dev, i));
+ }
+ }
+ for (i = 0; i < PNP_MAX_MEM; i++) {
+ if (pnp_mem_valid(dev, i)) {
+ pnp_printf(buffer,"mem");
+ if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED)
+ pnp_printf(buffer," disabled\n");
+ else
+ pnp_printf(buffer," 0x%lx-0x%lx\n",
+ pnp_mem_start(dev, i),
+ pnp_mem_end(dev, i));
+ }
+ }
+ for (i = 0; i < PNP_MAX_IRQ; i++) {
+ if (pnp_irq_valid(dev, i)) {
+ pnp_printf(buffer,"irq");
+ if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED)
+ pnp_printf(buffer," disabled\n");
+ else
+ pnp_printf(buffer," %ld\n",
+ pnp_irq(dev, i));
+ }
+ }
+ for (i = 0; i < PNP_MAX_DMA; i++) {
+ if (pnp_dma_valid(dev, i)) {
+ pnp_printf(buffer,"dma");
+ if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED)
+ pnp_printf(buffer," disabled\n");
+ else
+ pnp_printf(buffer," %ld\n",
+ pnp_dma(dev, i));
+ }
+ }
+ ret = (buffer->curr - buf);
+ kfree(buffer);
+ return ret;
+}
+
+extern struct semaphore pnp_res_mutex;
+
+static ssize_t
+pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count)
+{
+ struct pnp_dev *dev = to_pnp_dev(dmdev);
+ char *buf = (void *)ubuf;
+ int retval = 0;
+
+ if (dev->status & PNP_ATTACHED) {
+ retval = -EBUSY;
+ pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id);
+ goto done;
+ }
+
+ while (isspace(*buf))
+ ++buf;
+ if (!strnicmp(buf,"disable",7)) {
+ retval = pnp_disable_dev(dev);
+ goto done;
+ }
+ if (!strnicmp(buf,"activate",8)) {
+ retval = pnp_activate_dev(dev);
+ goto done;
+ }
+ if (!strnicmp(buf,"fill",4)) {
+ if (dev->active)
+ goto done;
+ retval = pnp_auto_config_dev(dev);
+ goto done;
+ }
+ if (!strnicmp(buf,"auto",4)) {
+ if (dev->active)
+ goto done;
+ pnp_init_resource_table(&dev->res);
+ retval = pnp_auto_config_dev(dev);
+ goto done;
+ }
+ if (!strnicmp(buf,"clear",5)) {
+ if (dev->active)
+ goto done;
+ pnp_init_resource_table(&dev->res);
+ goto done;
+ }
+ if (!strnicmp(buf,"get",3)) {
+ down(&pnp_res_mutex);
+ if (pnp_can_read(dev))
+ dev->protocol->get(dev, &dev->res);
+ up(&pnp_res_mutex);
+ goto done;
+ }
+ if (!strnicmp(buf,"set",3)) {
+ int nport = 0, nmem = 0, nirq = 0, ndma = 0;
+ if (dev->active)
+ goto done;
+ buf += 3;
+ pnp_init_resource_table(&dev->res);
+ down(&pnp_res_mutex);
+ while (1) {
+ while (isspace(*buf))
+ ++buf;
+ if (!strnicmp(buf,"io",2)) {
+ buf += 2;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.port_resource[nport].start = simple_strtoul(buf,&buf,0);
+ while (isspace(*buf))
+ ++buf;
+ if(*buf == '-') {
+ buf += 1;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.port_resource[nport].end = simple_strtoul(buf,&buf,0);
+ } else
+ dev->res.port_resource[nport].end = dev->res.port_resource[nport].start;
+ dev->res.port_resource[nport].flags = IORESOURCE_IO;
+ nport++;
+ if (nport >= PNP_MAX_PORT)
+ break;
+ continue;
+ }
+ if (!strnicmp(buf,"mem",3)) {
+ buf += 3;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.mem_resource[nmem].start = simple_strtoul(buf,&buf,0);
+ while (isspace(*buf))
+ ++buf;
+ if(*buf == '-') {
+ buf += 1;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.mem_resource[nmem].end = simple_strtoul(buf,&buf,0);
+ } else
+ dev->res.mem_resource[nmem].end = dev->res.mem_resource[nmem].start;
+ dev->res.mem_resource[nmem].flags = IORESOURCE_MEM;
+ nmem++;
+ if (nmem >= PNP_MAX_MEM)
+ break;
+ continue;
+ }
+ if (!strnicmp(buf,"irq",3)) {
+ buf += 3;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.irq_resource[nirq].start =
+ dev->res.irq_resource[nirq].end = simple_strtoul(buf,&buf,0);
+ dev->res.irq_resource[nirq].flags = IORESOURCE_IRQ;
+ nirq++;
+ if (nirq >= PNP_MAX_IRQ)
+ break;
+ continue;
+ }
+ if (!strnicmp(buf,"dma",3)) {
+ buf += 3;
+ while (isspace(*buf))
+ ++buf;
+ dev->res.dma_resource[ndma].start =
+ dev->res.dma_resource[ndma].end = simple_strtoul(buf,&buf,0);
+ dev->res.dma_resource[ndma].flags = IORESOURCE_DMA;
+ ndma++;
+ if (ndma >= PNP_MAX_DMA)
+ break;
+ continue;
+ }
+ break;
+ }
+ up(&pnp_res_mutex);
+ goto done;
+ }
+ done:
+ if (retval < 0)
+ return retval;
+ return count;
+}
+
+static DEVICE_ATTR(resources,S_IRUGO | S_IWUSR,
+ pnp_show_current_resources,pnp_set_current_resources);
+
+static ssize_t pnp_show_current_ids(struct device *dmdev, char *buf)
+{
+ char *str = buf;
+ struct pnp_dev *dev = to_pnp_dev(dmdev);
+ struct pnp_id * pos = dev->id;
+
+ while (pos) {
+ str += sprintf(str,"%s\n", pos->id);
+ pos = pos->next;
+ }
+ return (str - buf);
+}
+
+static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
+
+int pnp_interface_attach_device(struct pnp_dev *dev)
+{
+ device_create_file(&dev->dev,&dev_attr_options);
+ device_create_file(&dev->dev,&dev_attr_resources);
+ device_create_file(&dev->dev,&dev_attr_id);
+ return 0;
+}
diff --git a/drivers/pnp/isapnp/Kconfig b/drivers/pnp/isapnp/Kconfig
new file mode 100644
index 0000000..578651e
--- /dev/null
+++ b/drivers/pnp/isapnp/Kconfig
@@ -0,0 +1,11 @@
+#
+# ISA Plug and Play configuration
+#
+config ISAPNP
+ bool "ISA Plug and Play support"
+ depends on PNP && ISA
+ help
+ Say Y here if you would like support for ISA Plug and Play devices.
+ Some information is in <file:Documentation/isapnp.txt>.
+
+ If unsure, say Y.
diff --git a/drivers/pnp/isapnp/Makefile b/drivers/pnp/isapnp/Makefile
new file mode 100644
index 0000000..cac18bb
--- /dev/null
+++ b/drivers/pnp/isapnp/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the kernel ISAPNP driver.
+#
+
+isapnp-proc-$(CONFIG_PROC_FS) = proc.o
+
+obj-y := core.o compat.o $(isapnp-proc-y)
diff --git a/drivers/pnp/isapnp/compat.c b/drivers/pnp/isapnp/compat.c
new file mode 100644
index 0000000..3ff7e76
--- /dev/null
+++ b/drivers/pnp/isapnp/compat.c
@@ -0,0 +1,91 @@
+/*
+ * compat.c - A series of functions to make it easier to convert drivers that use
+ * the old isapnp APIs. If possible use the new APIs instead.
+ *
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+/* TODO: see if more isapnp functions are needed here */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/isapnp.h>
+#include <linux/string.h>
+
+static void pnp_convert_id(char *buf, unsigned short vendor, unsigned short device)
+{
+ sprintf(buf, "%c%c%c%x%x%x%x",
+ 'A' + ((vendor >> 2) & 0x3f) - 1,
+ 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
+ 'A' + ((vendor >> 8) & 0x1f) - 1,
+ (device >> 4) & 0x0f,
+ device & 0x0f,
+ (device >> 12) & 0x0f,
+ (device >> 8) & 0x0f);
+}
+
+struct pnp_card *pnp_find_card(unsigned short vendor,
+ unsigned short device,
+ struct pnp_card *from)
+{
+ char id[8];
+ char any[8];
+ struct list_head *list;
+ pnp_convert_id(id, vendor, device);
+ pnp_convert_id(any, ISAPNP_ANY_ID, ISAPNP_ANY_ID);
+
+ list = from ? from->global_list.next : pnp_cards.next;
+
+ while (list != &pnp_cards) {
+ struct pnp_card *card = global_to_pnp_card(list);
+ if (compare_pnp_id(card->id,id) || (memcmp(id,any,7)==0))
+ return card;
+ list = list->next;
+ }
+ return NULL;
+}
+
+struct pnp_dev *pnp_find_dev(struct pnp_card *card,
+ unsigned short vendor,
+ unsigned short function,
+ struct pnp_dev *from)
+{
+ char id[8];
+ char any[8];
+ pnp_convert_id(id, vendor, function);
+ pnp_convert_id(any, ISAPNP_ANY_ID, ISAPNP_ANY_ID);
+ if (card == NULL) { /* look for a logical device from all cards */
+ struct list_head *list;
+
+ list = pnp_global.next;
+ if (from)
+ list = from->global_list.next;
+
+ while (list != &pnp_global) {
+ struct pnp_dev *dev = global_to_pnp_dev(list);
+ if (compare_pnp_id(dev->id,id) || (memcmp(id,any,7)==0))
+ return dev;
+ list = list->next;
+ }
+ } else {
+ struct list_head *list;
+
+ list = card->devices.next;
+ if (from) {
+ list = from->card_list.next;
+ if (from->card != card) /* something is wrong */
+ return NULL;
+ }
+ while (list != &card->devices) {
+ struct pnp_dev *dev = card_to_pnp_dev(list);
+ if (compare_pnp_id(dev->id,id))
+ return dev;
+ list = list->next;
+ }
+ }
+ return NULL;
+}
+
+EXPORT_SYMBOL(pnp_find_card);
+EXPORT_SYMBOL(pnp_find_dev);
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
new file mode 100644
index 0000000..82c5edd
--- /dev/null
+++ b/drivers/pnp/isapnp/core.c
@@ -0,0 +1,1156 @@
+/*
+ * ISA Plug & Play support
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ * 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Changelog:
+ * 2000-01-01 Added quirks handling for buggy hardware
+ * Peter Denison <peterd@pnd-pc.demon.co.uk>
+ * 2000-06-14 Added isapnp_probe_devs() and isapnp_activate_dev()
+ * Christoph Hellwig <hch@infradead.org>
+ * 2001-06-03 Added release_region calls to correspond with
+ * request_region calls when a failure occurs. Also
+ * added KERN_* constants to printk() calls.
+ * 2001-11-07 Added isapnp_{,un}register_driver calls along the lines
+ * of the pci driver interface
+ * Kai Germaschewski <kai.germaschewski@gmx.de>
+ * 2002-06-06 Made the use of dma channel 0 configurable
+ * Gerald Teschl <gerald.teschl@univie.ac.at>
+ * 2002-10-06 Ported to PnP Layer - Adam Belay <ambx1@neo.rr.com>
+ * 2003-08-11 Resource Management Updates - Adam Belay <ambx1@neo.rr.com>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/isapnp.h>
+#include <asm/io.h>
+
+#if 0
+#define ISAPNP_REGION_OK
+#endif
+#if 0
+#define ISAPNP_DEBUG
+#endif
+
+int isapnp_disable; /* Disable ISA PnP */
+static int isapnp_rdp; /* Read Data Port */
+static int isapnp_reset = 1; /* reset all PnP cards (deactivate) */
+static int isapnp_verbose = 1; /* verbose mode */
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Generic ISA Plug & Play support");
+module_param(isapnp_disable, int, 0);
+MODULE_PARM_DESC(isapnp_disable, "ISA Plug & Play disable");
+module_param(isapnp_rdp, int, 0);
+MODULE_PARM_DESC(isapnp_rdp, "ISA Plug & Play read data port");
+module_param(isapnp_reset, int, 0);
+MODULE_PARM_DESC(isapnp_reset, "ISA Plug & Play reset all cards");
+module_param(isapnp_verbose, int, 0);
+MODULE_PARM_DESC(isapnp_verbose, "ISA Plug & Play verbose mode");
+MODULE_LICENSE("GPL");
+
+#define _PIDXR 0x279
+#define _PNPWRP 0xa79
+
+/* short tags */
+#define _STAG_PNPVERNO 0x01
+#define _STAG_LOGDEVID 0x02
+#define _STAG_COMPATDEVID 0x03
+#define _STAG_IRQ 0x04
+#define _STAG_DMA 0x05
+#define _STAG_STARTDEP 0x06
+#define _STAG_ENDDEP 0x07
+#define _STAG_IOPORT 0x08
+#define _STAG_FIXEDIO 0x09
+#define _STAG_VENDOR 0x0e
+#define _STAG_END 0x0f
+/* long tags */
+#define _LTAG_MEMRANGE 0x81
+#define _LTAG_ANSISTR 0x82
+#define _LTAG_UNICODESTR 0x83
+#define _LTAG_VENDOR 0x84
+#define _LTAG_MEM32RANGE 0x85
+#define _LTAG_FIXEDMEM32RANGE 0x86
+
+static unsigned char isapnp_checksum_value;
+static DECLARE_MUTEX(isapnp_cfg_mutex);
+static int isapnp_detected;
+static int isapnp_csn_count;
+
+/* some prototypes */
+
+static inline void write_data(unsigned char x)
+{
+ outb(x, _PNPWRP);
+}
+
+static inline void write_address(unsigned char x)
+{
+ outb(x, _PIDXR);
+ udelay(20);
+}
+
+static inline unsigned char read_data(void)
+{
+ unsigned char val = inb(isapnp_rdp);
+ return val;
+}
+
+unsigned char isapnp_read_byte(unsigned char idx)
+{
+ write_address(idx);
+ return read_data();
+}
+
+static unsigned short isapnp_read_word(unsigned char idx)
+{
+ unsigned short val;
+
+ val = isapnp_read_byte(idx);
+ val = (val << 8) + isapnp_read_byte(idx+1);
+ return val;
+}
+
+void isapnp_write_byte(unsigned char idx, unsigned char val)
+{
+ write_address(idx);
+ write_data(val);
+}
+
+static void isapnp_write_word(unsigned char idx, unsigned short val)
+{
+ isapnp_write_byte(idx, val >> 8);
+ isapnp_write_byte(idx+1, val);
+}
+
+static void *isapnp_alloc(long size)
+{
+ void *result;
+
+ result = kmalloc(size, GFP_KERNEL);
+ if (!result)
+ return NULL;
+ memset(result, 0, size);
+ return result;
+}
+
+static void isapnp_key(void)
+{
+ unsigned char code = 0x6a, msb;
+ int i;
+
+ mdelay(1);
+ write_address(0x00);
+ write_address(0x00);
+
+ write_address(code);
+
+ for (i = 1; i < 32; i++) {
+ msb = ((code & 0x01) ^ ((code & 0x02) >> 1)) << 7;
+ code = (code >> 1) | msb;
+ write_address(code);
+ }
+}
+
+/* place all pnp cards in wait-for-key state */
+static void isapnp_wait(void)
+{
+ isapnp_write_byte(0x02, 0x02);
+}
+
+static void isapnp_wake(unsigned char csn)
+{
+ isapnp_write_byte(0x03, csn);
+}
+
+static void isapnp_device(unsigned char logdev)
+{
+ isapnp_write_byte(0x07, logdev);
+}
+
+static void isapnp_activate(unsigned char logdev)
+{
+ isapnp_device(logdev);
+ isapnp_write_byte(ISAPNP_CFG_ACTIVATE, 1);
+ udelay(250);
+}
+
+static void isapnp_deactivate(unsigned char logdev)
+{
+ isapnp_device(logdev);
+ isapnp_write_byte(ISAPNP_CFG_ACTIVATE, 0);
+ udelay(500);
+}
+
+static void __init isapnp_peek(unsigned char *data, int bytes)
+{
+ int i, j;
+ unsigned char d=0;
+
+ for (i = 1; i <= bytes; i++) {
+ for (j = 0; j < 20; j++) {
+ d = isapnp_read_byte(0x05);
+ if (d & 1)
+ break;
+ udelay(100);
+ }
+ if (!(d & 1)) {
+ if (data != NULL)
+ *data++ = 0xff;
+ continue;
+ }
+ d = isapnp_read_byte(0x04); /* PRESDI */
+ isapnp_checksum_value += d;
+ if (data != NULL)
+ *data++ = d;
+ }
+}
+
+#define RDP_STEP 32 /* minimum is 4 */
+
+static int isapnp_next_rdp(void)
+{
+ int rdp = isapnp_rdp;
+ static int old_rdp = 0;
+
+ if(old_rdp)
+ {
+ release_region(old_rdp, 1);
+ old_rdp = 0;
+ }
+ while (rdp <= 0x3ff) {
+ /*
+ * We cannot use NE2000 probe spaces for ISAPnP or we
+ * will lock up machines.
+ */
+ if ((rdp < 0x280 || rdp > 0x380) && request_region(rdp, 1, "ISAPnP"))
+ {
+ isapnp_rdp = rdp;
+ old_rdp = rdp;
+ return 0;
+ }
+ rdp += RDP_STEP;
+ }
+ return -1;
+}
+
+/* Set read port address */
+static inline void isapnp_set_rdp(void)
+{
+ isapnp_write_byte(0x00, isapnp_rdp >> 2);
+ udelay(100);
+}
+
+/*
+ * Perform an isolation. The port selection code now tries to avoid
+ * "dangerous to read" ports.
+ */
+
+static int __init isapnp_isolate_rdp_select(void)
+{
+ isapnp_wait();
+ isapnp_key();
+
+ /* Control: reset CSN and conditionally everything else too */
+ isapnp_write_byte(0x02, isapnp_reset ? 0x05 : 0x04);
+ mdelay(2);
+
+ isapnp_wait();
+ isapnp_key();
+ isapnp_wake(0x00);
+
+ if (isapnp_next_rdp() < 0) {
+ isapnp_wait();
+ return -1;
+ }
+
+ isapnp_set_rdp();
+ udelay(1000);
+ write_address(0x01);
+ udelay(1000);
+ return 0;
+}
+
+/*
+ * Isolate (assign uniqued CSN) to all ISA PnP devices.
+ */
+
+static int __init isapnp_isolate(void)
+{
+ unsigned char checksum = 0x6a;
+ unsigned char chksum = 0x00;
+ unsigned char bit = 0x00;
+ int data;
+ int csn = 0;
+ int i;
+ int iteration = 1;
+
+ isapnp_rdp = 0x213;
+ if (isapnp_isolate_rdp_select() < 0)
+ return -1;
+
+ while (1) {
+ for (i = 1; i <= 64; i++) {
+ data = read_data() << 8;
+ udelay(250);
+ data = data | read_data();
+ udelay(250);
+ if (data == 0x55aa)
+ bit = 0x01;
+ checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1);
+ bit = 0x00;
+ }
+ for (i = 65; i <= 72; i++) {
+ data = read_data() << 8;
+ udelay(250);
+ data = data | read_data();
+ udelay(250);
+ if (data == 0x55aa)
+ chksum |= (1 << (i - 65));
+ }
+ if (checksum != 0x00 && checksum == chksum) {
+ csn++;
+
+ isapnp_write_byte(0x06, csn);
+ udelay(250);
+ iteration++;
+ isapnp_wake(0x00);
+ isapnp_set_rdp();
+ udelay(1000);
+ write_address(0x01);
+ udelay(1000);
+ goto __next;
+ }
+ if (iteration == 1) {
+ isapnp_rdp += RDP_STEP;
+ if (isapnp_isolate_rdp_select() < 0)
+ return -1;
+ } else if (iteration > 1) {
+ break;
+ }
+ __next:
+ if (csn == 255)
+ break;
+ checksum = 0x6a;
+ chksum = 0x00;
+ bit = 0x00;
+ }
+ isapnp_wait();
+ isapnp_csn_count = csn;
+ return csn;
+}
+
+/*
+ * Read one tag from stream.
+ */
+
+static int __init isapnp_read_tag(unsigned char *type, unsigned short *size)
+{
+ unsigned char tag, tmp[2];
+
+ isapnp_peek(&tag, 1);
+ if (tag == 0) /* invalid tag */
+ return -1;
+ if (tag & 0x80) { /* large item */
+ *type = tag;
+ isapnp_peek(tmp, 2);
+ *size = (tmp[1] << 8) | tmp[0];
+ } else {
+ *type = (tag >> 3) & 0x0f;
+ *size = tag & 0x07;
+ }
+#if 0
+ printk(KERN_DEBUG "tag = 0x%x, type = 0x%x, size = %i\n", tag, *type, *size);
+#endif
+ if (type == 0) /* wrong type */
+ return -1;
+ if (*type == 0xff && *size == 0xffff) /* probably invalid data */
+ return -1;
+ return 0;
+}
+
+/*
+ * Skip specified number of bytes from stream.
+ */
+
+static void __init isapnp_skip_bytes(int count)
+{
+ isapnp_peek(NULL, count);
+}
+
+/*
+ * Parse EISA id.
+ */
+
+static void isapnp_parse_id(struct pnp_dev * dev, unsigned short vendor, unsigned short device)
+{
+ struct pnp_id * id;
+ if (!dev)
+ return;
+ id = isapnp_alloc(sizeof(struct pnp_id));
+ if (!id)
+ return;
+ sprintf(id->id, "%c%c%c%x%x%x%x",
+ 'A' + ((vendor >> 2) & 0x3f) - 1,
+ 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
+ 'A' + ((vendor >> 8) & 0x1f) - 1,
+ (device >> 4) & 0x0f,
+ device & 0x0f,
+ (device >> 12) & 0x0f,
+ (device >> 8) & 0x0f);
+ pnp_add_id(id, dev);
+}
+
+/*
+ * Parse logical device tag.
+ */
+
+static struct pnp_dev * __init isapnp_parse_device(struct pnp_card *card, int size, int number)
+{
+ unsigned char tmp[6];
+ struct pnp_dev *dev;
+
+ isapnp_peek(tmp, size);
+ dev = isapnp_alloc(sizeof(struct pnp_dev));
+ if (!dev)
+ return NULL;
+ dev->number = number;
+ isapnp_parse_id(dev, (tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]);
+ dev->regs = tmp[4];
+ dev->card = card;
+ if (size > 5)
+ dev->regs |= tmp[5] << 8;
+ dev->protocol = &isapnp_protocol;
+ dev->capabilities |= PNP_CONFIGURABLE;
+ dev->capabilities |= PNP_READ;
+ dev->capabilities |= PNP_WRITE;
+ dev->capabilities |= PNP_DISABLE;
+ pnp_init_resource_table(&dev->res);
+ return dev;
+}
+
+
+/*
+ * Add IRQ resource to resources list.
+ */
+
+static void __init isapnp_parse_irq_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[3];
+ struct pnp_irq *irq;
+ unsigned long bits;
+
+ isapnp_peek(tmp, size);
+ irq = isapnp_alloc(sizeof(struct pnp_irq));
+ if (!irq)
+ return;
+ bits = (tmp[1] << 8) | tmp[0];
+ bitmap_copy(irq->map, &bits, 16);
+ if (size > 2)
+ irq->flags = tmp[2];
+ else
+ irq->flags = IORESOURCE_IRQ_HIGHEDGE;
+ pnp_register_irq_resource(option, irq);
+ return;
+}
+
+/*
+ * Add DMA resource to resources list.
+ */
+
+static void __init isapnp_parse_dma_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[2];
+ struct pnp_dma *dma;
+
+ isapnp_peek(tmp, size);
+ dma = isapnp_alloc(sizeof(struct pnp_dma));
+ if (!dma)
+ return;
+ dma->map = tmp[0];
+ dma->flags = tmp[1];
+ pnp_register_dma_resource(option, dma);
+ return;
+}
+
+/*
+ * Add port resource to resources list.
+ */
+
+static void __init isapnp_parse_port_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[7];
+ struct pnp_port *port;
+
+ isapnp_peek(tmp, size);
+ port = isapnp_alloc(sizeof(struct pnp_port));
+ if (!port)
+ return;
+ port->min = (tmp[2] << 8) | tmp[1];
+ port->max = (tmp[4] << 8) | tmp[3];
+ port->align = tmp[5];
+ port->size = tmp[6];
+ port->flags = tmp[0] ? PNP_PORT_FLAG_16BITADDR : 0;
+ pnp_register_port_resource(option,port);
+ return;
+}
+
+/*
+ * Add fixed port resource to resources list.
+ */
+
+static void __init isapnp_parse_fixed_port_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[3];
+ struct pnp_port *port;
+
+ isapnp_peek(tmp, size);
+ port = isapnp_alloc(sizeof(struct pnp_port));
+ if (!port)
+ return;
+ port->min = port->max = (tmp[1] << 8) | tmp[0];
+ port->size = tmp[2];
+ port->align = 0;
+ port->flags = PNP_PORT_FLAG_FIXED;
+ pnp_register_port_resource(option,port);
+ return;
+}
+
+/*
+ * Add memory resource to resources list.
+ */
+
+static void __init isapnp_parse_mem_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[9];
+ struct pnp_mem *mem;
+
+ isapnp_peek(tmp, size);
+ mem = isapnp_alloc(sizeof(struct pnp_mem));
+ if (!mem)
+ return;
+ mem->min = ((tmp[2] << 8) | tmp[1]) << 8;
+ mem->max = ((tmp[4] << 8) | tmp[3]) << 8;
+ mem->align = (tmp[6] << 8) | tmp[5];
+ mem->size = ((tmp[8] << 8) | tmp[7]) << 8;
+ mem->flags = tmp[0];
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+/*
+ * Add 32-bit memory resource to resources list.
+ */
+
+static void __init isapnp_parse_mem32_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[17];
+ struct pnp_mem *mem;
+
+ isapnp_peek(tmp, size);
+ mem = isapnp_alloc(sizeof(struct pnp_mem));
+ if (!mem)
+ return;
+ mem->min = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];
+ mem->max = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
+ mem->align = (tmp[12] << 24) | (tmp[11] << 16) | (tmp[10] << 8) | tmp[9];
+ mem->size = (tmp[16] << 24) | (tmp[15] << 16) | (tmp[14] << 8) | tmp[13];
+ mem->flags = tmp[0];
+ pnp_register_mem_resource(option,mem);
+}
+
+/*
+ * Add 32-bit fixed memory resource to resources list.
+ */
+
+static void __init isapnp_parse_fixed_mem32_resource(struct pnp_option *option,
+ int size)
+{
+ unsigned char tmp[9];
+ struct pnp_mem *mem;
+
+ isapnp_peek(tmp, size);
+ mem = isapnp_alloc(sizeof(struct pnp_mem));
+ if (!mem)
+ return;
+ mem->min = mem->max = (tmp[4] << 24) | (tmp[3] << 16) | (tmp[2] << 8) | tmp[1];
+ mem->size = (tmp[8] << 24) | (tmp[7] << 16) | (tmp[6] << 8) | tmp[5];
+ mem->align = 0;
+ mem->flags = tmp[0];
+ pnp_register_mem_resource(option,mem);
+}
+
+/*
+ * Parse card name for ISA PnP device.
+ */
+
+static void __init
+isapnp_parse_name(char *name, unsigned int name_max, unsigned short *size)
+{
+ if (name[0] == '\0') {
+ unsigned short size1 = *size >= name_max ? (name_max - 1) : *size;
+ isapnp_peek(name, size1);
+ name[size1] = '\0';
+ *size -= size1;
+
+ /* clean whitespace from end of string */
+ while (size1 > 0 && name[--size1] == ' ')
+ name[size1] = '\0';
+ }
+}
+
+/*
+ * Parse resource map for logical device.
+ */
+
+static int __init isapnp_create_device(struct pnp_card *card,
+ unsigned short size)
+{
+ int number = 0, skip = 0, priority = 0, compat = 0;
+ unsigned char type, tmp[17];
+ struct pnp_option *option;
+ struct pnp_dev *dev;
+ if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
+ return 1;
+ option = pnp_register_independent_option(dev);
+ if (!option) {
+ kfree(dev);
+ return 1;
+ }
+ pnp_add_card_device(card,dev);
+
+ while (1) {
+ if (isapnp_read_tag(&type, &size)<0)
+ return 1;
+ if (skip && type != _STAG_LOGDEVID && type != _STAG_END)
+ goto __skip;
+ switch (type) {
+ case _STAG_LOGDEVID:
+ if (size >= 5 && size <= 6) {
+ if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
+ return 1;
+ size = 0;
+ skip = 0;
+ option = pnp_register_independent_option(dev);
+ if (!option)
+ return 1;
+ pnp_add_card_device(card,dev);
+ } else {
+ skip = 1;
+ }
+ priority = 0;
+ compat = 0;
+ break;
+ case _STAG_COMPATDEVID:
+ if (size == 4 && compat < DEVICE_COUNT_COMPATIBLE) {
+ isapnp_peek(tmp, 4);
+ isapnp_parse_id(dev,(tmp[1] << 8) | tmp[0], (tmp[3] << 8) | tmp[2]);
+ compat++;
+ size = 0;
+ }
+ break;
+ case _STAG_IRQ:
+ if (size < 2 || size > 3)
+ goto __skip;
+ isapnp_parse_irq_resource(option, size);
+ size = 0;
+ break;
+ case _STAG_DMA:
+ if (size != 2)
+ goto __skip;
+ isapnp_parse_dma_resource(option, size);
+ size = 0;
+ break;
+ case _STAG_STARTDEP:
+ if (size > 1)
+ goto __skip;
+ priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
+ if (size > 0) {
+ isapnp_peek(tmp, size);
+ priority = 0x100 | tmp[0];
+ size = 0;
+ }
+ option = pnp_register_dependent_option(dev,priority);
+ if (!option)
+ return 1;
+ break;
+ case _STAG_ENDDEP:
+ if (size != 0)
+ goto __skip;
+ priority = 0;
+ break;
+ case _STAG_IOPORT:
+ if (size != 7)
+ goto __skip;
+ isapnp_parse_port_resource(option, size);
+ size = 0;
+ break;
+ case _STAG_FIXEDIO:
+ if (size != 3)
+ goto __skip;
+ isapnp_parse_fixed_port_resource(option, size);
+ size = 0;
+ break;
+ case _STAG_VENDOR:
+ break;
+ case _LTAG_MEMRANGE:
+ if (size != 9)
+ goto __skip;
+ isapnp_parse_mem_resource(option, size);
+ size = 0;
+ break;
+ case _LTAG_ANSISTR:
+ isapnp_parse_name(dev->name, sizeof(dev->name), &size);
+ break;
+ case _LTAG_UNICODESTR:
+ /* silently ignore */
+ /* who use unicode for hardware identification? */
+ break;
+ case _LTAG_VENDOR:
+ break;
+ case _LTAG_MEM32RANGE:
+ if (size != 17)
+ goto __skip;
+ isapnp_parse_mem32_resource(option, size);
+ size = 0;
+ break;
+ case _LTAG_FIXEDMEM32RANGE:
+ if (size != 9)
+ goto __skip;
+ isapnp_parse_fixed_mem32_resource(option, size);
+ size = 0;
+ break;
+ case _STAG_END:
+ if (size > 0)
+ isapnp_skip_bytes(size);
+ return 1;
+ default:
+ printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for logical device %i (device %i), ignored\n", type, dev->number, card->number);
+ }
+ __skip:
+ if (size > 0)
+ isapnp_skip_bytes(size);
+ }
+ return 0;
+}
+
+/*
+ * Parse resource map for ISA PnP card.
+ */
+
+static void __init isapnp_parse_resource_map(struct pnp_card *card)
+{
+ unsigned char type, tmp[17];
+ unsigned short size;
+
+ while (1) {
+ if (isapnp_read_tag(&type, &size)<0)
+ return;
+ switch (type) {
+ case _STAG_PNPVERNO:
+ if (size != 2)
+ goto __skip;
+ isapnp_peek(tmp, 2);
+ card->pnpver = tmp[0];
+ card->productver = tmp[1];
+ size = 0;
+ break;
+ case _STAG_LOGDEVID:
+ if (size >= 5 && size <= 6) {
+ if (isapnp_create_device(card, size)==1)
+ return;
+ size = 0;
+ }
+ break;
+ case _STAG_VENDOR:
+ break;
+ case _LTAG_ANSISTR:
+ isapnp_parse_name(card->name, sizeof(card->name), &size);
+ break;
+ case _LTAG_UNICODESTR:
+ /* silently ignore */
+ /* who use unicode for hardware identification? */
+ break;
+ case _LTAG_VENDOR:
+ break;
+ case _STAG_END:
+ if (size > 0)
+ isapnp_skip_bytes(size);
+ return;
+ default:
+ printk(KERN_ERR "isapnp: unexpected or unknown tag type 0x%x for device %i, ignored\n", type, card->number);
+ }
+ __skip:
+ if (size > 0)
+ isapnp_skip_bytes(size);
+ }
+}
+
+/*
+ * Compute ISA PnP checksum for first eight bytes.
+ */
+
+static unsigned char __init isapnp_checksum(unsigned char *data)
+{
+ int i, j;
+ unsigned char checksum = 0x6a, bit, b;
+
+ for (i = 0; i < 8; i++) {
+ b = data[i];
+ for (j = 0; j < 8; j++) {
+ bit = 0;
+ if (b & (1 << j))
+ bit = 1;
+ checksum = ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) | (checksum >> 1);
+ }
+ }
+ return checksum;
+}
+
+/*
+ * Parse EISA id for ISA PnP card.
+ */
+
+static void isapnp_parse_card_id(struct pnp_card * card, unsigned short vendor, unsigned short device)
+{
+ struct pnp_id * id = isapnp_alloc(sizeof(struct pnp_id));
+ if (!id)
+ return;
+ sprintf(id->id, "%c%c%c%x%x%x%x",
+ 'A' + ((vendor >> 2) & 0x3f) - 1,
+ 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
+ 'A' + ((vendor >> 8) & 0x1f) - 1,
+ (device >> 4) & 0x0f,
+ device & 0x0f,
+ (device >> 12) & 0x0f,
+ (device >> 8) & 0x0f);
+ pnp_add_card_id(id,card);
+}
+
+/*
+ * Build device list for all present ISA PnP devices.
+ */
+
+static int __init isapnp_build_device_list(void)
+{
+ int csn;
+ unsigned char header[9], checksum;
+ struct pnp_card *card;
+
+ isapnp_wait();
+ isapnp_key();
+ for (csn = 1; csn <= isapnp_csn_count; csn++) {
+ isapnp_wake(csn);
+ isapnp_peek(header, 9);
+ checksum = isapnp_checksum(header);
+#if 0
+ printk(KERN_DEBUG "vendor: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+ header[0], header[1], header[2], header[3],
+ header[4], header[5], header[6], header[7], header[8]);
+ printk(KERN_DEBUG "checksum = 0x%x\n", checksum);
+#endif
+ if ((card = isapnp_alloc(sizeof(struct pnp_card))) == NULL)
+ continue;
+
+ card->number = csn;
+ INIT_LIST_HEAD(&card->devices);
+ isapnp_parse_card_id(card, (header[1] << 8) | header[0], (header[3] << 8) | header[2]);
+ card->serial = (header[7] << 24) | (header[6] << 16) | (header[5] << 8) | header[4];
+ isapnp_checksum_value = 0x00;
+ isapnp_parse_resource_map(card);
+ if (isapnp_checksum_value != 0x00)
+ printk(KERN_ERR "isapnp: checksum for device %i is not valid (0x%x)\n", csn, isapnp_checksum_value);
+ card->checksum = isapnp_checksum_value;
+ card->protocol = &isapnp_protocol;
+
+ pnp_add_card(card);
+ }
+ isapnp_wait();
+ return 0;
+}
+
+/*
+ * Basic configuration routines.
+ */
+
+int isapnp_present(void)
+{
+ struct pnp_card *card;
+ pnp_for_each_card(card) {
+ if (card->protocol == &isapnp_protocol)
+ return 1;
+ }
+ return 0;
+}
+
+int isapnp_cfg_begin(int csn, int logdev)
+{
+ if (csn < 1 || csn > isapnp_csn_count || logdev > 10)
+ return -EINVAL;
+ down(&isapnp_cfg_mutex);
+ isapnp_wait();
+ isapnp_key();
+ isapnp_wake(csn);
+#if 0
+ /* to avoid malfunction when the isapnptools package is used */
+ /* we must set RDP to our value again */
+ /* it is possible to set RDP only in the isolation phase */
+ /* Jens Thoms Toerring <Jens.Toerring@physik.fu-berlin.de> */
+ isapnp_write_byte(0x02, 0x04); /* clear CSN of card */
+ mdelay(2); /* is this necessary? */
+ isapnp_wake(csn); /* bring card into sleep state */
+ isapnp_wake(0); /* bring card into isolation state */
+ isapnp_set_rdp(); /* reset the RDP port */
+ udelay(1000); /* delay 1000us */
+ isapnp_write_byte(0x06, csn); /* reset CSN to previous value */
+ udelay(250); /* is this necessary? */
+#endif
+ if (logdev >= 0)
+ isapnp_device(logdev);
+ return 0;
+}
+
+int isapnp_cfg_end(void)
+{
+ isapnp_wait();
+ up(&isapnp_cfg_mutex);
+ return 0;
+}
+
+
+/*
+ * Inititialization.
+ */
+
+
+EXPORT_SYMBOL(isapnp_protocol);
+EXPORT_SYMBOL(isapnp_present);
+EXPORT_SYMBOL(isapnp_cfg_begin);
+EXPORT_SYMBOL(isapnp_cfg_end);
+EXPORT_SYMBOL(isapnp_read_byte);
+EXPORT_SYMBOL(isapnp_write_byte);
+
+static int isapnp_read_resources(struct pnp_dev *dev, struct pnp_resource_table *res)
+{
+ int tmp, ret;
+
+ dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
+ if (dev->active) {
+ for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
+ ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1));
+ if (!ret)
+ continue;
+ res->port_resource[tmp].start = ret;
+ res->port_resource[tmp].flags = IORESOURCE_IO;
+ }
+ for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
+ ret = isapnp_read_word(ISAPNP_CFG_MEM + (tmp << 3)) << 8;
+ if (!ret)
+ continue;
+ res->mem_resource[tmp].start = ret;
+ res->mem_resource[tmp].flags = IORESOURCE_MEM;
+ }
+ for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
+ ret = (isapnp_read_word(ISAPNP_CFG_IRQ + (tmp << 1)) >> 8);
+ if (!ret)
+ continue;
+ res->irq_resource[tmp].start = res->irq_resource[tmp].end = ret;
+ res->irq_resource[tmp].flags = IORESOURCE_IRQ;
+ }
+ for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
+ ret = isapnp_read_byte(ISAPNP_CFG_DMA + tmp);
+ if (ret == 4)
+ continue;
+ res->dma_resource[tmp].start = res->dma_resource[tmp].end = ret;
+ res->dma_resource[tmp].flags = IORESOURCE_DMA;
+ }
+ }
+ return 0;
+}
+
+static int isapnp_get_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
+{
+ int ret;
+ pnp_init_resource_table(res);
+ isapnp_cfg_begin(dev->card->number, dev->number);
+ ret = isapnp_read_resources(dev, res);
+ isapnp_cfg_end();
+ return ret;
+}
+
+static int isapnp_set_resources(struct pnp_dev *dev, struct pnp_resource_table * res)
+{
+ int tmp;
+
+ isapnp_cfg_begin(dev->card->number, dev->number);
+ dev->active = 1;
+ for (tmp = 0; tmp < PNP_MAX_PORT && (res->port_resource[tmp].flags & (IORESOURCE_IO | IORESOURCE_UNSET)) == IORESOURCE_IO; tmp++)
+ isapnp_write_word(ISAPNP_CFG_PORT+(tmp<<1), res->port_resource[tmp].start);
+ for (tmp = 0; tmp < PNP_MAX_IRQ && (res->irq_resource[tmp].flags & (IORESOURCE_IRQ | IORESOURCE_UNSET)) == IORESOURCE_IRQ; tmp++) {
+ int irq = res->irq_resource[tmp].start;
+ if (irq == 2)
+ irq = 9;
+ isapnp_write_byte(ISAPNP_CFG_IRQ+(tmp<<1), irq);
+ }
+ for (tmp = 0; tmp < PNP_MAX_DMA && (res->dma_resource[tmp].flags & (IORESOURCE_DMA | IORESOURCE_UNSET)) == IORESOURCE_DMA; tmp++)
+ isapnp_write_byte(ISAPNP_CFG_DMA+tmp, res->dma_resource[tmp].start);
+ for (tmp = 0; tmp < PNP_MAX_MEM && (res->mem_resource[tmp].flags & (IORESOURCE_MEM | IORESOURCE_UNSET)) == IORESOURCE_MEM; tmp++)
+ isapnp_write_word(ISAPNP_CFG_MEM+(tmp<<3), (res->mem_resource[tmp].start >> 8) & 0xffff);
+ /* FIXME: We aren't handling 32bit mems properly here */
+ isapnp_activate(dev->number);
+ isapnp_cfg_end();
+ return 0;
+}
+
+static int isapnp_disable_resources(struct pnp_dev *dev)
+{
+ if (!dev || !dev->active)
+ return -EINVAL;
+ isapnp_cfg_begin(dev->card->number, dev->number);
+ isapnp_deactivate(dev->number);
+ dev->active = 0;
+ isapnp_cfg_end();
+ return 0;
+}
+
+struct pnp_protocol isapnp_protocol = {
+ .name = "ISA Plug and Play",
+ .get = isapnp_get_resources,
+ .set = isapnp_set_resources,
+ .disable = isapnp_disable_resources,
+};
+
+static int __init isapnp_init(void)
+{
+ int cards;
+ struct pnp_card *card;
+ struct pnp_dev *dev;
+
+ if (isapnp_disable) {
+ isapnp_detected = 0;
+ printk(KERN_INFO "isapnp: ISA Plug & Play support disabled\n");
+ return 0;
+ }
+#ifdef ISAPNP_REGION_OK
+ if (!request_region(_PIDXR, 1, "isapnp index")) {
+ printk(KERN_ERR "isapnp: Index Register 0x%x already used\n", _PIDXR);
+ return -EBUSY;
+ }
+#endif
+ if (!request_region(_PNPWRP, 1, "isapnp write")) {
+ printk(KERN_ERR "isapnp: Write Data Register 0x%x already used\n", _PNPWRP);
+#ifdef ISAPNP_REGION_OK
+ release_region(_PIDXR, 1);
+#endif
+ return -EBUSY;
+ }
+
+ if(pnp_register_protocol(&isapnp_protocol)<0)
+ return -EBUSY;
+
+ /*
+ * Print a message. The existing ISAPnP code is hanging machines
+ * so let the user know where.
+ */
+
+ printk(KERN_INFO "isapnp: Scanning for PnP cards...\n");
+ if (isapnp_rdp >= 0x203 && isapnp_rdp <= 0x3ff) {
+ isapnp_rdp |= 3;
+ if (!request_region(isapnp_rdp, 1, "isapnp read")) {
+ printk(KERN_ERR "isapnp: Read Data Register 0x%x already used\n", isapnp_rdp);
+#ifdef ISAPNP_REGION_OK
+ release_region(_PIDXR, 1);
+#endif
+ release_region(_PNPWRP, 1);
+ return -EBUSY;
+ }
+ isapnp_set_rdp();
+ }
+ isapnp_detected = 1;
+ if (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff) {
+ cards = isapnp_isolate();
+ if (cards < 0 ||
+ (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) {
+#ifdef ISAPNP_REGION_OK
+ release_region(_PIDXR, 1);
+#endif
+ release_region(_PNPWRP, 1);
+ isapnp_detected = 0;
+ printk(KERN_INFO "isapnp: No Plug & Play device found\n");
+ return 0;
+ }
+ request_region(isapnp_rdp, 1, "isapnp read");
+ }
+ isapnp_build_device_list();
+ cards = 0;
+
+ protocol_for_each_card(&isapnp_protocol,card) {
+ cards++;
+ if (isapnp_verbose) {
+ printk(KERN_INFO "isapnp: Card '%s'\n", card->name[0]?card->name:"Unknown");
+ if (isapnp_verbose < 2)
+ continue;
+ card_for_each_dev(card,dev) {
+ printk(KERN_INFO "isapnp: Device '%s'\n", dev->name[0]?dev->name:"Unknown");
+ }
+ }
+ }
+ if (cards) {
+ printk(KERN_INFO "isapnp: %i Plug & Play card%s detected total\n", cards, cards>1?"s":"");
+ } else {
+ printk(KERN_INFO "isapnp: No Plug & Play card found\n");
+ }
+
+ isapnp_proc_init();
+ return 0;
+}
+
+device_initcall(isapnp_init);
+
+/* format is: noisapnp */
+
+static int __init isapnp_setup_disable(char *str)
+{
+ isapnp_disable = 1;
+ return 1;
+}
+
+__setup("noisapnp", isapnp_setup_disable);
+
+/* format is: isapnp=rdp,reset,skip_pci_scan,verbose */
+
+static int __init isapnp_setup_isapnp(char *str)
+{
+ (void)((get_option(&str,&isapnp_rdp) == 2) &&
+ (get_option(&str,&isapnp_reset) == 2) &&
+ (get_option(&str,&isapnp_verbose) == 2));
+ return 1;
+}
+
+__setup("isapnp=", isapnp_setup_isapnp);
+
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
new file mode 100644
index 0000000..cf54b0a
--- /dev/null
+++ b/drivers/pnp/isapnp/proc.c
@@ -0,0 +1,171 @@
+/*
+ * ISA Plug & Play support
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ * 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/isapnp.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+
+extern struct pnp_protocol isapnp_protocol;
+
+static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
+
+static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
+{
+ loff_t new = -1;
+
+ lock_kernel();
+ switch (whence) {
+ case 0:
+ new = off;
+ break;
+ case 1:
+ new = file->f_pos + off;
+ break;
+ case 2:
+ new = 256 + off;
+ break;
+ }
+ if (new < 0 || new > 256) {
+ unlock_kernel();
+ return -EINVAL;
+ }
+ unlock_kernel();
+ return (file->f_pos = new);
+}
+
+static ssize_t isapnp_proc_bus_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+ struct inode *ino = file->f_dentry->d_inode;
+ struct proc_dir_entry *dp = PDE(ino);
+ struct pnp_dev *dev = dp->data;
+ int pos = *ppos;
+ int cnt, size = 256;
+
+ if (pos >= size)
+ return 0;
+ if (nbytes >= size)
+ nbytes = size;
+ if (pos + nbytes > size)
+ nbytes = size - pos;
+ cnt = nbytes;
+
+ if (!access_ok(VERIFY_WRITE, buf, cnt))
+ return -EINVAL;
+
+ isapnp_cfg_begin(dev->card->number, dev->number);
+ for ( ; pos < 256 && cnt > 0; pos++, buf++, cnt--) {
+ unsigned char val;
+ val = isapnp_read_byte(pos);
+ __put_user(val, buf);
+ }
+ isapnp_cfg_end();
+
+ *ppos = pos;
+ return nbytes;
+}
+
+static struct file_operations isapnp_proc_bus_file_operations =
+{
+ .llseek = isapnp_proc_bus_lseek,
+ .read = isapnp_proc_bus_read,
+};
+
+static int isapnp_proc_attach_device(struct pnp_dev *dev)
+{
+ struct pnp_card *bus = dev->card;
+ struct proc_dir_entry *de, *e;
+ char name[16];
+
+ if (!(de = bus->procdir)) {
+ sprintf(name, "%02x", bus->number);
+ de = bus->procdir = proc_mkdir(name, isapnp_proc_bus_dir);
+ if (!de)
+ return -ENOMEM;
+ }
+ sprintf(name, "%02x", dev->number);
+ e = dev->procent = create_proc_entry(name, S_IFREG | S_IRUGO, de);
+ if (!e)
+ return -ENOMEM;
+ e->proc_fops = &isapnp_proc_bus_file_operations;
+ e->owner = THIS_MODULE;
+ e->data = dev;
+ e->size = 256;
+ return 0;
+}
+
+#ifdef MODULE
+static int __exit isapnp_proc_detach_device(struct pnp_dev *dev)
+{
+ struct pnp_card *bus = dev->card;
+ struct proc_dir_entry *de;
+ char name[16];
+
+ if (!(de = bus->procdir))
+ return -EINVAL;
+ sprintf(name, "%02x", dev->number);
+ remove_proc_entry(name, de);
+ return 0;
+}
+
+static int __exit isapnp_proc_detach_bus(struct pnp_card *bus)
+{
+ struct proc_dir_entry *de;
+ char name[16];
+
+ if (!(de = bus->procdir))
+ return -EINVAL;
+ sprintf(name, "%02x", bus->number);
+ remove_proc_entry(name, isapnp_proc_bus_dir);
+ return 0;
+}
+#endif /* MODULE */
+
+int __init isapnp_proc_init(void)
+{
+ struct pnp_dev *dev;
+ isapnp_proc_bus_dir = proc_mkdir("isapnp", proc_bus);
+ protocol_for_each_dev(&isapnp_protocol,dev) {
+ isapnp_proc_attach_device(dev);
+ }
+ return 0;
+}
+
+#ifdef MODULE
+int __exit isapnp_proc_done(void)
+{
+ struct pnp_dev *dev;
+ struct pnp_bus *card;
+
+ isapnp_for_each_dev(dev) {
+ isapnp_proc_detach_device(dev);
+ }
+ isapnp_for_each_card(card) {
+ isapnp_proc_detach_bus(card);
+ }
+ if (isapnp_proc_bus_dir)
+ remove_proc_entry("isapnp", proc_bus);
+ return 0;
+}
+#endif /* MODULE */
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
new file mode 100644
index 0000000..639e042
--- /dev/null
+++ b/drivers/pnp/manager.c
@@ -0,0 +1,566 @@
+/*
+ * manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices
+ *
+ * based on isapnp.c resource management (c) Jaroslav Kysela <perex@suse.cz>
+ * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#include <linux/pnp.h>
+#include "base.h"
+
+DECLARE_MUTEX(pnp_res_mutex);
+
+static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
+{
+ unsigned long *start, *end, *flags;
+
+ if (!dev || !rule)
+ return -EINVAL;
+
+ if (idx >= PNP_MAX_PORT) {
+ pnp_err("More than 4 ports is incompatible with pnp specifications.");
+ /* pretend we were successful so at least the manager won't try again */
+ return 1;
+ }
+
+ /* check if this resource has been manually set, if so skip */
+ if (!(dev->res.port_resource[idx].flags & IORESOURCE_AUTO))
+ return 1;
+
+ start = &dev->res.port_resource[idx].start;
+ end = &dev->res.port_resource[idx].end;
+ flags = &dev->res.port_resource[idx].flags;
+
+ /* set the initial values */
+ *flags |= rule->flags | IORESOURCE_IO;
+ *flags &= ~IORESOURCE_UNSET;
+
+ if (!rule->size) {
+ *flags |= IORESOURCE_DISABLED;
+ return 1; /* skip disabled resource requests */
+ }
+
+ *start = rule->min;
+ *end = *start + rule->size - 1;
+
+ /* run through until pnp_check_port is happy */
+ while (!pnp_check_port(dev, idx)) {
+ *start += rule->align;
+ *end = *start + rule->size - 1;
+ if (*start > rule->max || !rule->align)
+ return 0;
+ }
+ return 1;
+}
+
+static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
+{
+ unsigned long *start, *end, *flags;
+
+ if (!dev || !rule)
+ return -EINVAL;
+
+ if (idx >= PNP_MAX_MEM) {
+ pnp_err("More than 8 mems is incompatible with pnp specifications.");
+ /* pretend we were successful so at least the manager won't try again */
+ return 1;
+ }
+
+ /* check if this resource has been manually set, if so skip */
+ if (!(dev->res.mem_resource[idx].flags & IORESOURCE_AUTO))
+ return 1;
+
+ start = &dev->res.mem_resource[idx].start;
+ end = &dev->res.mem_resource[idx].end;
+ flags = &dev->res.mem_resource[idx].flags;
+
+ /* set the initial values */
+ *flags |= rule->flags | IORESOURCE_MEM;
+ *flags &= ~IORESOURCE_UNSET;
+
+ /* convert pnp flags to standard Linux flags */
+ if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
+ *flags |= IORESOURCE_READONLY;
+ if (rule->flags & IORESOURCE_MEM_CACHEABLE)
+ *flags |= IORESOURCE_CACHEABLE;
+ if (rule->flags & IORESOURCE_MEM_RANGELENGTH)
+ *flags |= IORESOURCE_RANGELENGTH;
+ if (rule->flags & IORESOURCE_MEM_SHADOWABLE)
+ *flags |= IORESOURCE_SHADOWABLE;
+
+ if (!rule->size) {
+ *flags |= IORESOURCE_DISABLED;
+ return 1; /* skip disabled resource requests */
+ }
+
+ *start = rule->min;
+ *end = *start + rule->size -1;
+
+ /* run through until pnp_check_mem is happy */
+ while (!pnp_check_mem(dev, idx)) {
+ *start += rule->align;
+ *end = *start + rule->size - 1;
+ if (*start > rule->max || !rule->align)
+ return 0;
+ }
+ return 1;
+}
+
+static int pnp_assign_irq(struct pnp_dev * dev, struct pnp_irq *rule, int idx)
+{
+ unsigned long *start, *end, *flags;
+ int i;
+
+ /* IRQ priority: this table is good for i386 */
+ static unsigned short xtab[16] = {
+ 5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
+ };
+
+ if (!dev || !rule)
+ return -EINVAL;
+
+ if (idx >= PNP_MAX_IRQ) {
+ pnp_err("More than 2 irqs is incompatible with pnp specifications.");
+ /* pretend we were successful so at least the manager won't try again */
+ return 1;
+ }
+
+ /* check if this resource has been manually set, if so skip */
+ if (!(dev->res.irq_resource[idx].flags & IORESOURCE_AUTO))
+ return 1;
+
+ start = &dev->res.irq_resource[idx].start;
+ end = &dev->res.irq_resource[idx].end;
+ flags = &dev->res.irq_resource[idx].flags;
+
+ /* set the initial values */
+ *flags |= rule->flags | IORESOURCE_IRQ;
+ *flags &= ~IORESOURCE_UNSET;
+
+ if (bitmap_empty(rule->map, PNP_IRQ_NR)) {
+ *flags |= IORESOURCE_DISABLED;
+ return 1; /* skip disabled resource requests */
+ }
+
+ /* TBD: need check for >16 IRQ */
+ *start = find_next_bit(rule->map, PNP_IRQ_NR, 16);
+ if (*start < PNP_IRQ_NR) {
+ *end = *start;
+ return 1;
+ }
+ for (i = 0; i < 16; i++) {
+ if(test_bit(xtab[i], rule->map)) {
+ *start = *end = xtab[i];
+ if(pnp_check_irq(dev, idx))
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
+{
+ unsigned long *start, *end, *flags;
+ int i;
+
+ /* DMA priority: this table is good for i386 */
+ static unsigned short xtab[8] = {
+ 1, 3, 5, 6, 7, 0, 2, 4
+ };
+
+ if (!dev || !rule)
+ return -EINVAL;
+
+ if (idx >= PNP_MAX_DMA) {
+ pnp_err("More than 2 dmas is incompatible with pnp specifications.");
+ /* pretend we were successful so at least the manager won't try again */
+ return 1;
+ }
+
+ /* check if this resource has been manually set, if so skip */
+ if (!(dev->res.dma_resource[idx].flags & IORESOURCE_AUTO))
+ return 1;
+
+ start = &dev->res.dma_resource[idx].start;
+ end = &dev->res.dma_resource[idx].end;
+ flags = &dev->res.dma_resource[idx].flags;
+
+ /* set the initial values */
+ *flags |= rule->flags | IORESOURCE_DMA;
+ *flags &= ~IORESOURCE_UNSET;
+
+ if (!rule->map) {
+ *flags |= IORESOURCE_DISABLED;
+ return 1; /* skip disabled resource requests */
+ }
+
+ for (i = 0; i < 8; i++) {
+ if(rule->map & (1<<xtab[i])) {
+ *start = *end = xtab[i];
+ if(pnp_check_dma(dev, idx))
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/**
+ * pnp_init_resources - Resets a resource table to default values.
+ * @table: pointer to the desired resource table
+ *
+ */
+void pnp_init_resource_table(struct pnp_resource_table *table)
+{
+ int idx;
+ for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
+ table->irq_resource[idx].name = NULL;
+ table->irq_resource[idx].start = -1;
+ table->irq_resource[idx].end = -1;
+ table->irq_resource[idx].flags = IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_DMA; idx++) {
+ table->dma_resource[idx].name = NULL;
+ table->dma_resource[idx].start = -1;
+ table->dma_resource[idx].end = -1;
+ table->dma_resource[idx].flags = IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_PORT; idx++) {
+ table->port_resource[idx].name = NULL;
+ table->port_resource[idx].start = 0;
+ table->port_resource[idx].end = 0;
+ table->port_resource[idx].flags = IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_MEM; idx++) {
+ table->mem_resource[idx].name = NULL;
+ table->mem_resource[idx].start = 0;
+ table->mem_resource[idx].end = 0;
+ table->mem_resource[idx].flags = IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+}
+
+/**
+ * pnp_clean_resources - clears resources that were not manually set
+ * @res - the resources to clean
+ *
+ */
+static void pnp_clean_resource_table(struct pnp_resource_table * res)
+{
+ int idx;
+ for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
+ if (!(res->irq_resource[idx].flags & IORESOURCE_AUTO))
+ continue;
+ res->irq_resource[idx].start = -1;
+ res->irq_resource[idx].end = -1;
+ res->irq_resource[idx].flags = IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_DMA; idx++) {
+ if (!(res->dma_resource[idx].flags & IORESOURCE_AUTO))
+ continue;
+ res->dma_resource[idx].start = -1;
+ res->dma_resource[idx].end = -1;
+ res->dma_resource[idx].flags = IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_PORT; idx++) {
+ if (!(res->port_resource[idx].flags & IORESOURCE_AUTO))
+ continue;
+ res->port_resource[idx].start = 0;
+ res->port_resource[idx].end = 0;
+ res->port_resource[idx].flags = IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+ for (idx = 0; idx < PNP_MAX_MEM; idx++) {
+ if (!(res->mem_resource[idx].flags & IORESOURCE_AUTO))
+ continue;
+ res->mem_resource[idx].start = 0;
+ res->mem_resource[idx].end = 0;
+ res->mem_resource[idx].flags = IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+ }
+}
+
+/**
+ * pnp_assign_resources - assigns resources to the device based on the specified dependent number
+ * @dev: pointer to the desired device
+ * @depnum: the dependent function number
+ *
+ * Only set depnum to 0 if the device does not have dependent options.
+ */
+static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
+{
+ struct pnp_port *port;
+ struct pnp_mem *mem;
+ struct pnp_irq *irq;
+ struct pnp_dma *dma;
+ int nport = 0, nmem = 0, nirq = 0, ndma = 0;
+
+ if (!pnp_can_configure(dev))
+ return -ENODEV;
+
+ down(&pnp_res_mutex);
+ pnp_clean_resource_table(&dev->res); /* start with a fresh slate */
+ if (dev->independent) {
+ port = dev->independent->port;
+ mem = dev->independent->mem;
+ irq = dev->independent->irq;
+ dma = dev->independent->dma;
+ while (port) {
+ if (!pnp_assign_port(dev, port, nport))
+ goto fail;
+ nport++;
+ port = port->next;
+ }
+ while (mem) {
+ if (!pnp_assign_mem(dev, mem, nmem))
+ goto fail;
+ nmem++;
+ mem = mem->next;
+ }
+ while (irq) {
+ if (!pnp_assign_irq(dev, irq, nirq))
+ goto fail;
+ nirq++;
+ irq = irq->next;
+ }
+ while (dma) {
+ if (!pnp_assign_dma(dev, dma, ndma))
+ goto fail;
+ ndma++;
+ dma = dma->next;
+ }
+ }
+
+ if (depnum) {
+ struct pnp_option *dep;
+ int i;
+ for (i=1,dep=dev->dependent; i<depnum; i++, dep=dep->next)
+ if(!dep)
+ goto fail;
+ port =dep->port;
+ mem = dep->mem;
+ irq = dep->irq;
+ dma = dep->dma;
+ while (port) {
+ if (!pnp_assign_port(dev, port, nport))
+ goto fail;
+ nport++;
+ port = port->next;
+ }
+ while (mem) {
+ if (!pnp_assign_mem(dev, mem, nmem))
+ goto fail;
+ nmem++;
+ mem = mem->next;
+ }
+ while (irq) {
+ if (!pnp_assign_irq(dev, irq, nirq))
+ goto fail;
+ nirq++;
+ irq = irq->next;
+ }
+ while (dma) {
+ if (!pnp_assign_dma(dev, dma, ndma))
+ goto fail;
+ ndma++;
+ dma = dma->next;
+ }
+ } else if (dev->dependent)
+ goto fail;
+
+ up(&pnp_res_mutex);
+ return 1;
+
+fail:
+ pnp_clean_resource_table(&dev->res);
+ up(&pnp_res_mutex);
+ return 0;
+}
+
+/**
+ * pnp_manual_config_dev - Disables Auto Config and Manually sets the resource table
+ * @dev: pointer to the desired device
+ * @res: pointer to the new resource config
+ *
+ * This function can be used by drivers that want to manually set thier resources.
+ */
+int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table * res, int mode)
+{
+ int i;
+ struct pnp_resource_table * bak;
+ if (!dev || !res)
+ return -EINVAL;
+ if (!pnp_can_configure(dev))
+ return -ENODEV;
+ bak = pnp_alloc(sizeof(struct pnp_resource_table));
+ if (!bak)
+ return -ENOMEM;
+ *bak = dev->res;
+
+ down(&pnp_res_mutex);
+ dev->res = *res;
+ if (!(mode & PNP_CONFIG_FORCE)) {
+ for (i = 0; i < PNP_MAX_PORT; i++) {
+ if(!pnp_check_port(dev,i))
+ goto fail;
+ }
+ for (i = 0; i < PNP_MAX_MEM; i++) {
+ if(!pnp_check_mem(dev,i))
+ goto fail;
+ }
+ for (i = 0; i < PNP_MAX_IRQ; i++) {
+ if(!pnp_check_irq(dev,i))
+ goto fail;
+ }
+ for (i = 0; i < PNP_MAX_DMA; i++) {
+ if(!pnp_check_dma(dev,i))
+ goto fail;
+ }
+ }
+ up(&pnp_res_mutex);
+
+ kfree(bak);
+ return 0;
+
+fail:
+ dev->res = *bak;
+ up(&pnp_res_mutex);
+ kfree(bak);
+ return -EINVAL;
+}
+
+/**
+ * pnp_auto_config_dev - automatically assigns resources to a device
+ * @dev: pointer to the desired device
+ *
+ */
+int pnp_auto_config_dev(struct pnp_dev *dev)
+{
+ struct pnp_option *dep;
+ int i = 1;
+
+ if(!dev)
+ return -EINVAL;
+
+ if(!pnp_can_configure(dev)) {
+ pnp_info("Device %s does not support resource configuration.", dev->dev.bus_id);
+ return -ENODEV;
+ }
+
+ if (!dev->dependent) {
+ if (pnp_assign_resources(dev, 0))
+ return 0;
+ } else {
+ dep = dev->dependent;
+ do {
+ if (pnp_assign_resources(dev, i))
+ return 0;
+ dep = dep->next;
+ i++;
+ } while (dep);
+ }
+
+ pnp_err("Unable to assign resources to device %s.", dev->dev.bus_id);
+ return -EBUSY;
+}
+
+/**
+ * pnp_activate_dev - activates a PnP device for use
+ * @dev: pointer to the desired device
+ *
+ * does not validate or set resources so be careful.
+ */
+int pnp_activate_dev(struct pnp_dev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+ if (dev->active) {
+ return 0; /* the device is already active */
+ }
+
+ /* ensure resources are allocated */
+ if (pnp_auto_config_dev(dev))
+ return -EBUSY;
+
+ if (!pnp_can_write(dev)) {
+ pnp_info("Device %s does not supported activation.", dev->dev.bus_id);
+ return -EINVAL;
+ }
+
+ if (dev->protocol->set(dev, &dev->res)<0) {
+ pnp_err("Failed to activate device %s.", dev->dev.bus_id);
+ return -EIO;
+ }
+
+ dev->active = 1;
+ pnp_info("Device %s activated.", dev->dev.bus_id);
+
+ return 1;
+}
+
+/**
+ * pnp_disable_dev - disables device
+ * @dev: pointer to the desired device
+ *
+ * inform the correct pnp protocol so that resources can be used by other devices
+ */
+int pnp_disable_dev(struct pnp_dev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+ if (!dev->active) {
+ return 0; /* the device is already disabled */
+ }
+
+ if (!pnp_can_disable(dev)) {
+ pnp_info("Device %s does not supported disabling.", dev->dev.bus_id);
+ return -EINVAL;
+ }
+ if (dev->protocol->disable(dev)<0) {
+ pnp_err("Failed to disable device %s.", dev->dev.bus_id);
+ return -EIO;
+ }
+
+ dev->active = 0;
+ pnp_info("Device %s disabled.", dev->dev.bus_id);
+
+ /* release the resources so that other devices can use them */
+ down(&pnp_res_mutex);
+ pnp_clean_resource_table(&dev->res);
+ up(&pnp_res_mutex);
+
+ return 1;
+}
+
+/**
+ * pnp_resource_change - change one resource
+ * @resource: pointer to resource to be changed
+ * @start: start of region
+ * @size: size of region
+ *
+ */
+void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size)
+{
+ if (resource == NULL)
+ return;
+ resource->flags &= ~(IORESOURCE_AUTO | IORESOURCE_UNSET);
+ resource->start = start;
+ resource->end = start + size - 1;
+}
+
+
+EXPORT_SYMBOL(pnp_manual_config_dev);
+EXPORT_SYMBOL(pnp_auto_config_dev);
+EXPORT_SYMBOL(pnp_activate_dev);
+EXPORT_SYMBOL(pnp_disable_dev);
+EXPORT_SYMBOL(pnp_resource_change);
+EXPORT_SYMBOL(pnp_init_resource_table);
diff --git a/drivers/pnp/pnpacpi/Kconfig b/drivers/pnp/pnpacpi/Kconfig
new file mode 100644
index 0000000..0782cdc
--- /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 0000000..905326f
--- /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 0000000..8655dd2
--- /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 0000000..76f907e
--- /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 0000000..c0ddb1e
--- /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;
+}
diff --git a/drivers/pnp/pnpbios/Kconfig b/drivers/pnp/pnpbios/Kconfig
new file mode 100644
index 0000000..fab848c
--- /dev/null
+++ b/drivers/pnp/pnpbios/Kconfig
@@ -0,0 +1,42 @@
+#
+# Plug and Play BIOS configuration
+#
+config PNPBIOS
+ bool "Plug and Play BIOS support (EXPERIMENTAL)"
+ depends on PNP && ISA && X86 && EXPERIMENTAL
+ default n
+ ---help---
+ Linux uses the PNPBIOS as defined in "Plug and Play BIOS
+ Specification Version 1.0A May 5, 1994" to autodetect built-in
+ mainboard resources (e.g. parallel port resources).
+
+ Some features (e.g. event notification, docking station information,
+ ISAPNP services) 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 PNPBIOS can help prevent resource
+ conflicts between mainboard devices and other bus devices.
+
+ Note: ACPI is expected to supersede PNPBIOS some day, currently it
+ co-exists nicely. If you have a non-ISA system that supports ACPI,
+ you probably don't need PNPBIOS support.
+
+config PNPBIOS_PROC_FS
+ bool "Plug and Play BIOS /proc interface"
+ depends on PNPBIOS && PROC_FS
+ ---help---
+ If you say Y here and to "/proc file system support", you will be
+ able to directly access the PNPBIOS. This includes resource
+ allocation, ESCD, and other PNPBIOS services. Using this
+ interface is potentially dangerous because the PNPBIOS driver will
+ not be notified of any resource changes made by writing directly.
+ Also some buggy systems will fault when accessing certain features
+ in the PNPBIOS /proc interface (e.g. "boot" configs).
+
+ See the latest pcmcia-cs (stand-alone package) for a nice set of
+ PNPBIOS /proc interface tools (lspnp and setpnp).
+
+ Unless you are debugging or have other specific reasons, it is
+ recommended that you say N here.
+
diff --git a/drivers/pnp/pnpbios/Makefile b/drivers/pnp/pnpbios/Makefile
new file mode 100644
index 0000000..3cd3ed7
--- /dev/null
+++ b/drivers/pnp/pnpbios/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the kernel PNPBIOS driver.
+#
+
+pnpbios-proc-$(CONFIG_PNPBIOS_PROC_FS) = proc.o
+
+obj-y := core.o bioscalls.o rsparser.o $(pnpbios-proc-y)
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
new file mode 100644
index 0000000..6b7583f
--- /dev/null
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -0,0 +1,544 @@
+/*
+ * bioscalls.c - the lowlevel layer of the PnPBIOS driver
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/kernel.h>
+#include <linux/pnpbios.h>
+#include <linux/device.h>
+#include <linux/pnp.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/slab.h>
+#include <linux/kmod.h>
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+
+#include <asm/page.h>
+#include <asm/desc.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+
+#include "pnpbios.h"
+
+static struct {
+ u16 offset;
+ u16 segment;
+} pnp_bios_callpoint;
+
+
+/* The PnP BIOS entries in the GDT */
+#define PNP_GDT (GDT_ENTRY_PNPBIOS_BASE * 8)
+
+#define PNP_CS32 (PNP_GDT+0x00) /* segment for calling fn */
+#define PNP_CS16 (PNP_GDT+0x08) /* code segment for BIOS */
+#define PNP_DS (PNP_GDT+0x10) /* data segment for BIOS */
+#define PNP_TS1 (PNP_GDT+0x18) /* transfer data segment */
+#define PNP_TS2 (PNP_GDT+0x20) /* another data segment */
+
+/*
+ * These are some opcodes for a "static asmlinkage"
+ * As this code is *not* executed inside the linux kernel segment, but in a
+ * alias at offset 0, we need a far return that can not be compiled by
+ * default (please, prove me wrong! this is *really* ugly!)
+ * This is the only way to get the bios to return into the kernel code,
+ * because the bios code runs in 16 bit protected mode and therefore can only
+ * return to the caller if the call is within the first 64kB, and the linux
+ * kernel begins at offset 3GB...
+ */
+
+asmlinkage void pnp_bios_callfunc(void);
+
+__asm__(
+ ".text \n"
+ __ALIGN_STR "\n"
+ "pnp_bios_callfunc:\n"
+ " pushl %edx \n"
+ " pushl %ecx \n"
+ " pushl %ebx \n"
+ " pushl %eax \n"
+ " lcallw *pnp_bios_callpoint\n"
+ " addl $16, %esp \n"
+ " lret \n"
+ ".previous \n"
+);
+
+#define Q_SET_SEL(cpu, selname, address, size) \
+do { \
+set_base(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], __va((u32)(address))); \
+set_limit(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], size); \
+} while(0)
+
+#define Q2_SET_SEL(cpu, selname, address, size) \
+do { \
+set_base(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], (u32)(address)); \
+set_limit(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], size); \
+} while(0)
+
+static struct desc_struct bad_bios_desc = { 0, 0x00409200 };
+
+/*
+ * At some point we want to use this stack frame pointer to unwind
+ * after PnP BIOS oopses.
+ */
+
+u32 pnp_bios_fault_esp;
+u32 pnp_bios_fault_eip;
+u32 pnp_bios_is_utter_crap = 0;
+
+static spinlock_t pnp_bios_lock;
+
+
+/*
+ * Support Functions
+ */
+
+static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
+ u16 arg4, u16 arg5, u16 arg6, u16 arg7,
+ void *ts1_base, u32 ts1_size,
+ void *ts2_base, u32 ts2_size)
+{
+ unsigned long flags;
+ u16 status;
+ struct desc_struct save_desc_40;
+ int cpu;
+
+ /*
+ * PnP BIOSes are generally not terribly re-entrant.
+ * Also, don't rely on them to save everything correctly.
+ */
+ if(pnp_bios_is_utter_crap)
+ return PNP_FUNCTION_NOT_SUPPORTED;
+
+ cpu = get_cpu();
+ save_desc_40 = per_cpu(cpu_gdt_table,cpu)[0x40 / 8];
+ per_cpu(cpu_gdt_table,cpu)[0x40 / 8] = bad_bios_desc;
+
+ /* On some boxes IRQ's during PnP BIOS calls are deadly. */
+ spin_lock_irqsave(&pnp_bios_lock, flags);
+
+ /* The lock prevents us bouncing CPU here */
+ if (ts1_size)
+ Q2_SET_SEL(smp_processor_id(), PNP_TS1, ts1_base, ts1_size);
+ if (ts2_size)
+ Q2_SET_SEL(smp_processor_id(), PNP_TS2, ts2_base, ts2_size);
+
+ __asm__ __volatile__(
+ "pushl %%ebp\n\t"
+ "pushl %%edi\n\t"
+ "pushl %%esi\n\t"
+ "pushl %%ds\n\t"
+ "pushl %%es\n\t"
+ "pushl %%fs\n\t"
+ "pushl %%gs\n\t"
+ "pushfl\n\t"
+ "movl %%esp, pnp_bios_fault_esp\n\t"
+ "movl $1f, pnp_bios_fault_eip\n\t"
+ "lcall %5,%6\n\t"
+ "1:popfl\n\t"
+ "popl %%gs\n\t"
+ "popl %%fs\n\t"
+ "popl %%es\n\t"
+ "popl %%ds\n\t"
+ "popl %%esi\n\t"
+ "popl %%edi\n\t"
+ "popl %%ebp\n\t"
+ : "=a" (status)
+ : "0" ((func) | (((u32)arg1) << 16)),
+ "b" ((arg2) | (((u32)arg3) << 16)),
+ "c" ((arg4) | (((u32)arg5) << 16)),
+ "d" ((arg6) | (((u32)arg7) << 16)),
+ "i" (PNP_CS32),
+ "i" (0)
+ : "memory"
+ );
+ spin_unlock_irqrestore(&pnp_bios_lock, flags);
+
+ per_cpu(cpu_gdt_table,cpu)[0x40 / 8] = save_desc_40;
+ put_cpu();
+
+ /* If we get here and this is set then the PnP BIOS faulted on us. */
+ if(pnp_bios_is_utter_crap)
+ {
+ printk(KERN_ERR "PnPBIOS: Warning! Your PnP BIOS caused a fatal error. Attempting to continue\n");
+ printk(KERN_ERR "PnPBIOS: You may need to reboot with the \"pnpbios=off\" option to operate stably\n");
+ printk(KERN_ERR "PnPBIOS: Check with your vendor for an updated BIOS\n");
+ }
+
+ return status;
+}
+
+void pnpbios_print_status(const char * module, u16 status)
+{
+ switch(status) {
+ case PNP_SUCCESS:
+ printk(KERN_ERR "PnPBIOS: %s: function successful\n", module);
+ break;
+ case PNP_NOT_SET_STATICALLY:
+ printk(KERN_ERR "PnPBIOS: %s: unable to set static resources\n", module);
+ break;
+ case PNP_UNKNOWN_FUNCTION:
+ printk(KERN_ERR "PnPBIOS: %s: invalid function number passed\n", module);
+ break;
+ case PNP_FUNCTION_NOT_SUPPORTED:
+ printk(KERN_ERR "PnPBIOS: %s: function not supported on this system\n", module);
+ break;
+ case PNP_INVALID_HANDLE:
+ printk(KERN_ERR "PnPBIOS: %s: invalid handle\n", module);
+ break;
+ case PNP_BAD_PARAMETER:
+ printk(KERN_ERR "PnPBIOS: %s: invalid parameters were passed\n", module);
+ break;
+ case PNP_SET_FAILED:
+ printk(KERN_ERR "PnPBIOS: %s: unable to set resources\n", module);
+ break;
+ case PNP_EVENTS_NOT_PENDING:
+ printk(KERN_ERR "PnPBIOS: %s: no events are pending\n", module);
+ break;
+ case PNP_SYSTEM_NOT_DOCKED:
+ printk(KERN_ERR "PnPBIOS: %s: the system is not docked\n", module);
+ break;
+ case PNP_NO_ISA_PNP_CARDS:
+ printk(KERN_ERR "PnPBIOS: %s: no isapnp cards are installed on this system\n", module);
+ break;
+ case PNP_UNABLE_TO_DETERMINE_DOCK_CAPABILITIES:
+ printk(KERN_ERR "PnPBIOS: %s: cannot determine the capabilities of the docking station\n", module);
+ break;
+ case PNP_CONFIG_CHANGE_FAILED_NO_BATTERY:
+ printk(KERN_ERR "PnPBIOS: %s: unable to undock, the system does not have a battery\n", module);
+ break;
+ case PNP_CONFIG_CHANGE_FAILED_RESOURCE_CONFLICT:
+ printk(KERN_ERR "PnPBIOS: %s: could not dock due to resource conflicts\n", module);
+ break;
+ case PNP_BUFFER_TOO_SMALL:
+ printk(KERN_ERR "PnPBIOS: %s: the buffer passed is too small\n", module);
+ break;
+ case PNP_USE_ESCD_SUPPORT:
+ printk(KERN_ERR "PnPBIOS: %s: use ESCD instead\n", module);
+ break;
+ case PNP_MESSAGE_NOT_SUPPORTED:
+ printk(KERN_ERR "PnPBIOS: %s: the message is unsupported\n", module);
+ break;
+ case PNP_HARDWARE_ERROR:
+ printk(KERN_ERR "PnPBIOS: %s: a hardware failure has occured\n", module);
+ break;
+ default:
+ printk(KERN_ERR "PnPBIOS: %s: unexpected status 0x%x\n", module, status);
+ break;
+ }
+}
+
+
+/*
+ * PnP BIOS Low Level Calls
+ */
+
+#define PNP_GET_NUM_SYS_DEV_NODES 0x00
+#define PNP_GET_SYS_DEV_NODE 0x01
+#define PNP_SET_SYS_DEV_NODE 0x02
+#define PNP_GET_EVENT 0x03
+#define PNP_SEND_MESSAGE 0x04
+#define PNP_GET_DOCKING_STATION_INFORMATION 0x05
+#define PNP_SET_STATIC_ALLOCED_RES_INFO 0x09
+#define PNP_GET_STATIC_ALLOCED_RES_INFO 0x0a
+#define PNP_GET_APM_ID_TABLE 0x0b
+#define PNP_GET_PNP_ISA_CONFIG_STRUC 0x40
+#define PNP_GET_ESCD_INFO 0x41
+#define PNP_READ_ESCD 0x42
+#define PNP_WRITE_ESCD 0x43
+
+/*
+ * Call PnP BIOS with function 0x00, "get number of system device nodes"
+ */
+static int __pnp_bios_dev_node_info(struct pnp_dev_node_info *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_NUM_SYS_DEV_NODES, 0, PNP_TS1, 2, PNP_TS1, PNP_DS, 0, 0,
+ data, sizeof(struct pnp_dev_node_info), NULL, 0);
+ data->no_nodes &= 0xff;
+ return status;
+}
+
+int pnp_bios_dev_node_info(struct pnp_dev_node_info *data)
+{
+ int status = __pnp_bios_dev_node_info( data );
+ if ( status )
+ pnpbios_print_status( "dev_node_info", status );
+ return status;
+}
+
+/*
+ * Note that some PnP BIOSes (e.g., on Sony Vaio laptops) die a horrible
+ * death if they are asked to access the "current" configuration.
+ * Therefore, if it's a matter of indifference, it's better to call
+ * get_dev_node() and set_dev_node() with boot=1 rather than with boot=0.
+ */
+
+/*
+ * Call PnP BIOS with function 0x01, "get system device node"
+ * Input: *nodenum = desired node,
+ * boot = whether to get nonvolatile boot (!=0)
+ * or volatile current (0) config
+ * Output: *nodenum=next node or 0xff if no more nodes
+ */
+static int __pnp_bios_get_dev_node(u8 *nodenum, char boot, struct pnp_bios_node *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ if ( !boot && pnpbios_dont_use_current_config )
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_SYS_DEV_NODE, 0, PNP_TS1, 0, PNP_TS2, boot ? 2 : 1, PNP_DS, 0,
+ nodenum, sizeof(char), data, 65536);
+ return status;
+}
+
+int pnp_bios_get_dev_node(u8 *nodenum, char boot, struct pnp_bios_node *data)
+{
+ int status;
+ status = __pnp_bios_get_dev_node( nodenum, boot, data );
+ if ( status )
+ pnpbios_print_status( "get_dev_node", status );
+ return status;
+}
+
+
+/*
+ * Call PnP BIOS with function 0x02, "set system device node"
+ * Input: *nodenum = desired node,
+ * boot = whether to set nonvolatile boot (!=0)
+ * or volatile current (0) config
+ */
+static int __pnp_bios_set_dev_node(u8 nodenum, char boot, struct pnp_bios_node *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ if ( !boot && pnpbios_dont_use_current_config )
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_SET_SYS_DEV_NODE, nodenum, 0, PNP_TS1, boot ? 2 : 1, PNP_DS, 0, 0,
+ data, 65536, NULL, 0);
+ return status;
+}
+
+int pnp_bios_set_dev_node(u8 nodenum, char boot, struct pnp_bios_node *data)
+{
+ int status;
+ status = __pnp_bios_set_dev_node( nodenum, boot, data );
+ if ( status ) {
+ pnpbios_print_status( "set_dev_node", status );
+ return status;
+ }
+ if ( !boot ) { /* Update devlist */
+ status = pnp_bios_get_dev_node( &nodenum, boot, data );
+ if ( status )
+ return status;
+ }
+ return status;
+}
+
+#if needed
+/*
+ * Call PnP BIOS with function 0x03, "get event"
+ */
+static int pnp_bios_get_event(u16 *event)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_EVENT, 0, PNP_TS1, PNP_DS, 0, 0 ,0 ,0,
+ event, sizeof(u16), NULL, 0);
+ return status;
+}
+#endif
+
+#if needed
+/*
+ * Call PnP BIOS with function 0x04, "send message"
+ */
+static int pnp_bios_send_message(u16 message)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_SEND_MESSAGE, message, PNP_DS, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+ return status;
+}
+#endif
+
+/*
+ * Call PnP BIOS with function 0x05, "get docking station information"
+ */
+int pnp_bios_dock_station_info(struct pnp_docking_station_info *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_DOCKING_STATION_INFORMATION, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0,
+ data, sizeof(struct pnp_docking_station_info), NULL, 0);
+ return status;
+}
+
+#if needed
+/*
+ * Call PnP BIOS with function 0x09, "set statically allocated resource
+ * information"
+ */
+static int pnp_bios_set_stat_res(char *info)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_SET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0,
+ info, *((u16 *) info), 0, 0);
+ return status;
+}
+#endif
+
+/*
+ * Call PnP BIOS with function 0x0a, "get statically allocated resource
+ * information"
+ */
+static int __pnp_bios_get_stat_res(char *info)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0,
+ info, 65536, NULL, 0);
+ return status;
+}
+
+int pnp_bios_get_stat_res(char *info)
+{
+ int status;
+ status = __pnp_bios_get_stat_res( info );
+ if ( status )
+ pnpbios_print_status( "get_stat_res", status );
+ return status;
+}
+
+#if needed
+/*
+ * Call PnP BIOS with function 0x0b, "get APM id table"
+ */
+static int pnp_bios_apm_id_table(char *table, u16 *size)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_APM_ID_TABLE, 0, PNP_TS2, 0, PNP_TS1, PNP_DS, 0, 0,
+ table, *size, size, sizeof(u16));
+ return status;
+}
+#endif
+
+/*
+ * Call PnP BIOS with function 0x40, "get isa pnp configuration structure"
+ */
+static int __pnp_bios_isapnp_config(struct pnp_isa_config_struc *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return PNP_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_PNP_ISA_CONFIG_STRUC, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0,
+ data, sizeof(struct pnp_isa_config_struc), NULL, 0);
+ return status;
+}
+
+int pnp_bios_isapnp_config(struct pnp_isa_config_struc *data)
+{
+ int status;
+ status = __pnp_bios_isapnp_config( data );
+ if ( status )
+ pnpbios_print_status( "isapnp_config", status );
+ return status;
+}
+
+/*
+ * Call PnP BIOS with function 0x41, "get ESCD info"
+ */
+static int __pnp_bios_escd_info(struct escd_info_struc *data)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return ESCD_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_GET_ESCD_INFO, 0, PNP_TS1, 2, PNP_TS1, 4, PNP_TS1, PNP_DS,
+ data, sizeof(struct escd_info_struc), NULL, 0);
+ return status;
+}
+
+int pnp_bios_escd_info(struct escd_info_struc *data)
+{
+ int status;
+ status = __pnp_bios_escd_info( data );
+ if ( status )
+ pnpbios_print_status( "escd_info", status );
+ return status;
+}
+
+/*
+ * Call PnP BIOS function 0x42, "read ESCD"
+ * nvram_base is determined by calling escd_info
+ */
+static int __pnp_bios_read_escd(char *data, u32 nvram_base)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return ESCD_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_READ_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0,
+ data, 65536, __va(nvram_base), 65536);
+ return status;
+}
+
+int pnp_bios_read_escd(char *data, u32 nvram_base)
+{
+ int status;
+ status = __pnp_bios_read_escd( data, nvram_base );
+ if ( status )
+ pnpbios_print_status( "read_escd", status );
+ return status;
+}
+
+#if needed
+/*
+ * Call PnP BIOS function 0x43, "write ESCD"
+ */
+static int pnp_bios_write_escd(char *data, u32 nvram_base)
+{
+ u16 status;
+ if (!pnp_bios_present())
+ return ESCD_FUNCTION_NOT_SUPPORTED;
+ status = call_pnp_bios(PNP_WRITE_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0,
+ data, 65536, __va(nvram_base), 65536);
+ return status;
+}
+#endif
+
+
+/*
+ * Initialization
+ */
+
+void pnpbios_calls_init(union pnp_bios_install_struct *header)
+{
+ int i;
+ spin_lock_init(&pnp_bios_lock);
+ pnp_bios_callpoint.offset = header->fields.pm16offset;
+ pnp_bios_callpoint.segment = PNP_CS16;
+
+ set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
+ _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
+ for(i=0; i < NR_CPUS; i++)
+ {
+ Q2_SET_SEL(i, PNP_CS32, &pnp_bios_callfunc, 64 * 1024);
+ Q_SET_SEL(i, PNP_CS16, header->fields.pm16cseg, 64 * 1024);
+ Q_SET_SEL(i, PNP_DS, header->fields.pm16dseg, 64 * 1024);
+ }
+}
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
new file mode 100644
index 0000000..0f6330b
--- /dev/null
+++ b/drivers/pnp/pnpbios/core.c
@@ -0,0 +1,644 @@
+/*
+ * pnpbios -- PnP BIOS driver
+ *
+ * This driver provides access to Plug-'n'-Play services provided by
+ * the PnP BIOS firmware, described in the following documents:
+ * Plug and Play BIOS Specification, Version 1.0A, 5 May 1994
+ * Plug and Play BIOS Clarification Paper, 6 October 1994
+ * Compaq Computer Corporation, Phoenix Technologies Ltd., Intel Corp.
+ *
+ * Originally (C) 1998 Christian Schmidt <schmidt@digadd.de>
+ * Modifications (C) 1998 Tom Lees <tom@lpsg.demon.co.uk>
+ * Minor reorganizations by David Hinds <dahinds@users.sourceforge.net>
+ * Further modifications (C) 2001, 2002 by:
+ * Alan Cox <alan@redhat.com>
+ * Thomas Hood
+ * Brian Gerst <bgerst@didntduck.org>
+ *
+ * Ported to the PnP Layer and several additional improvements (C) 2002
+ * by Adam Belay <ambx1@neo.rr.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
+ */
+
+/* Change Log
+ *
+ * Adam Belay - <ambx1@neo.rr.com> - March 16, 2003
+ * rev 1.01 Only call pnp_bios_dev_node_info once
+ * Added pnpbios_print_status
+ * Added several new error messages and info messages
+ * Added pnpbios_interface_attach_device
+ * integrated core and proc init system
+ * Introduced PNPMODE flags
+ * Removed some useless includes
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/kernel.h>
+#include <linux/pnpbios.h>
+#include <linux/device.h>
+#include <linux/pnp.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/slab.h>
+#include <linux/kobject_uevent.h>
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+#include <linux/dmi.h>
+#include <linux/delay.h>
+#include <linux/acpi.h>
+
+#include <asm/page.h>
+#include <asm/desc.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+
+#include "pnpbios.h"
+
+
+/*
+ *
+ * PnP BIOS INTERFACE
+ *
+ */
+
+static union pnp_bios_install_struct * pnp_bios_install = NULL;
+
+int pnp_bios_present(void)
+{
+ return (pnp_bios_install != NULL);
+}
+
+struct pnp_dev_node_info node_info;
+
+void *pnpbios_kmalloc(size_t size, int f)
+{
+ void *p = kmalloc( size, f );
+ if ( p == NULL )
+ printk(KERN_ERR "PnPBIOS: kmalloc() failed\n");
+ else
+ memset(p, 0, size);
+ return p;
+}
+
+/*
+ *
+ * DOCKING FUNCTIONS
+ *
+ */
+
+#ifdef CONFIG_HOTPLUG
+
+static int unloading = 0;
+static struct completion unload_sem;
+
+/*
+ * (Much of this belongs in a shared routine somewhere)
+ */
+
+static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
+{
+ char *argv [3], **envp, *buf, *scratch;
+ int i = 0, value;
+
+ if (!hotplug_path [0])
+ return -ENOENT;
+ if (!current->fs->root) {
+ return -EAGAIN;
+ }
+ if (!(envp = (char **) pnpbios_kmalloc (20 * sizeof (char *), GFP_KERNEL))) {
+ return -ENOMEM;
+ }
+ if (!(buf = pnpbios_kmalloc (256, GFP_KERNEL))) {
+ kfree (envp);
+ return -ENOMEM;
+ }
+
+ /* only one standardized param to hotplug command: type */
+ argv [0] = hotplug_path;
+ argv [1] = "dock";
+ argv [2] = NULL;
+
+ /* minimal command environment */
+ envp [i++] = "HOME=/";
+ envp [i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+
+#ifdef DEBUG
+ /* hint that policy agent should enter no-stdout debug mode */
+ envp [i++] = "DEBUG=kernel";
+#endif
+ /* extensible set of named bus-specific parameters,
+ * supporting multiple driver selection algorithms.
+ */
+ scratch = buf;
+
+ /* action: add, remove */
+ envp [i++] = scratch;
+ scratch += sprintf (scratch, "ACTION=%s", dock?"add":"remove") + 1;
+
+ /* Report the ident for the dock */
+ envp [i++] = scratch;
+ scratch += sprintf (scratch, "DOCK=%x/%x/%x",
+ info->location_id, info->serial, info->capabilities);
+ envp[i] = NULL;
+
+ value = call_usermodehelper (argv [0], argv, envp, 0);
+ kfree (buf);
+ kfree (envp);
+ return 0;
+}
+
+/*
+ * Poll the PnP docking at regular intervals
+ */
+static int pnp_dock_thread(void * unused)
+{
+ static struct pnp_docking_station_info now;
+ int docked = -1, d = 0;
+ daemonize("kpnpbiosd");
+ allow_signal(SIGKILL);
+ while(!unloading && !signal_pending(current))
+ {
+ int status;
+
+ /*
+ * Poll every 2 seconds
+ */
+ msleep_interruptible(2000);
+
+ if(signal_pending(current)) {
+ if (try_to_freeze(PF_FREEZE))
+ continue;
+ break;
+ }
+
+ status = pnp_bios_dock_station_info(&now);
+
+ switch(status)
+ {
+ /*
+ * No dock to manage
+ */
+ case PNP_FUNCTION_NOT_SUPPORTED:
+ complete_and_exit(&unload_sem, 0);
+ case PNP_SYSTEM_NOT_DOCKED:
+ d = 0;
+ break;
+ case PNP_SUCCESS:
+ d = 1;
+ break;
+ default:
+ pnpbios_print_status( "pnp_dock_thread", status );
+ continue;
+ }
+ if(d != docked)
+ {
+ if(pnp_dock_event(d, &now)==0)
+ {
+ docked = d;
+#if 0
+ printk(KERN_INFO "PnPBIOS: Docking station %stached\n", docked?"at":"de");
+#endif
+ }
+ }
+ }
+ complete_and_exit(&unload_sem, 0);
+}
+
+#endif /* CONFIG_HOTPLUG */
+
+static int pnpbios_get_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+{
+ u8 nodenum = dev->number;
+ struct pnp_bios_node * node;
+
+ /* just in case */
+ if(!pnpbios_is_dynamic(dev))
+ return -EPERM;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node)
+ return -1;
+ if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ kfree(node);
+ return -ENODEV;
+ }
+ pnpbios_read_resources_from_node(res, node);
+ dev->active = pnp_is_active(dev);
+ kfree(node);
+ return 0;
+}
+
+static int pnpbios_set_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+{
+ u8 nodenum = dev->number;
+ struct pnp_bios_node * node;
+ int ret;
+
+ /* just in case */
+ if (!pnpbios_is_dynamic(dev))
+ return -EPERM;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node)
+ return -1;
+ if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ kfree(node);
+ return -ENODEV;
+ }
+ if(pnpbios_write_resources_to_node(res, node)<0) {
+ kfree(node);
+ return -1;
+ }
+ ret = pnp_bios_set_dev_node(node->handle, (char)PNPMODE_DYNAMIC, node);
+ kfree(node);
+ if (ret > 0)
+ ret = -1;
+ return ret;
+}
+
+static void pnpbios_zero_data_stream(struct pnp_bios_node * node)
+{
+ unsigned char * p = (char *)node->data;
+ unsigned char * end = (char *)(node->data + node->size);
+ unsigned int len;
+ int i;
+ while ((char *)p < (char *)end) {
+ if(p[0] & 0x80) { /* large tag */
+ len = (p[2] << 8) | p[1];
+ p += 3;
+ } else {
+ if (((p[0]>>3) & 0x0f) == 0x0f)
+ return;
+ len = p[0] & 0x07;
+ p += 1;
+ }
+ for (i = 0; i < len; i++)
+ p[i] = 0;
+ p += len;
+ }
+ printk(KERN_ERR "PnPBIOS: Resource structure did not contain an end tag.\n");
+}
+
+static int pnpbios_disable_resources(struct pnp_dev *dev)
+{
+ struct pnp_bios_node * node;
+ u8 nodenum = dev->number;
+ int ret;
+
+ /* just in case */
+ if(dev->flags & PNPBIOS_NO_DISABLE || !pnpbios_is_dynamic(dev))
+ return -EPERM;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node)
+ return -ENOMEM;
+
+ if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ kfree(node);
+ return -ENODEV;
+ }
+ pnpbios_zero_data_stream(node);
+
+ ret = pnp_bios_set_dev_node(dev->number, (char)PNPMODE_DYNAMIC, node);
+ kfree(node);
+ if (ret > 0)
+ ret = -1;
+ return ret;
+}
+
+/* PnP Layer support */
+
+struct pnp_protocol pnpbios_protocol = {
+ .name = "Plug and Play BIOS",
+ .get = pnpbios_get_resources,
+ .set = pnpbios_set_resources,
+ .disable = pnpbios_disable_resources,
+};
+
+static int insert_device(struct pnp_dev *dev, struct pnp_bios_node * node)
+{
+ struct list_head * pos;
+ struct pnp_dev * pnp_dev;
+ struct pnp_id *dev_id;
+ char id[8];
+
+ /* check if the device is already added */
+ dev->number = node->handle;
+ list_for_each (pos, &pnpbios_protocol.devices){
+ pnp_dev = list_entry(pos, struct pnp_dev, protocol_list);
+ if (dev->number == pnp_dev->number)
+ return -1;
+ }
+
+ /* set the initial values for the PnP device */
+ dev_id = pnpbios_kmalloc(sizeof(struct pnp_id), GFP_KERNEL);
+ if (!dev_id)
+ return -1;
+ pnpid32_to_pnpid(node->eisa_id,id);
+ memcpy(dev_id->id,id,7);
+ pnp_add_id(dev_id, dev);
+ pnpbios_parse_data_stream(dev, node);
+ dev->active = pnp_is_active(dev);
+ dev->flags = node->flags;
+ if (!(dev->flags & PNPBIOS_NO_CONFIG))
+ dev->capabilities |= PNP_CONFIGURABLE;
+ if (!(dev->flags & PNPBIOS_NO_DISABLE))
+ dev->capabilities |= PNP_DISABLE;
+ dev->capabilities |= PNP_READ;
+ if (pnpbios_is_dynamic(dev))
+ dev->capabilities |= PNP_WRITE;
+ if (dev->flags & PNPBIOS_REMOVABLE)
+ dev->capabilities |= PNP_REMOVABLE;
+ dev->protocol = &pnpbios_protocol;
+
+ /* clear out the damaged flags */
+ if (!dev->active)
+ pnp_init_resource_table(&dev->res);
+
+ pnp_add_device(dev);
+ pnpbios_interface_attach_device(node);
+
+ return 0;
+}
+
+static void __init build_devlist(void)
+{
+ u8 nodenum;
+ unsigned int nodes_got = 0;
+ unsigned int devs = 0;
+ struct pnp_bios_node *node;
+ struct pnp_dev *dev;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node)
+ return;
+
+ for(nodenum=0; nodenum<0xff; ) {
+ u8 thisnodenum = nodenum;
+ /* eventually we will want to use PNPMODE_STATIC here but for now
+ * dynamic will help us catch buggy bioses to add to the blacklist.
+ */
+ if (!pnpbios_dont_use_current_config) {
+ if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node))
+ break;
+ } else {
+ if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_STATIC, node))
+ break;
+ }
+ nodes_got++;
+ dev = pnpbios_kmalloc(sizeof (struct pnp_dev), GFP_KERNEL);
+ if (!dev)
+ break;
+ if(insert_device(dev,node)<0)
+ kfree(dev);
+ else
+ devs++;
+ if (nodenum <= thisnodenum) {
+ printk(KERN_ERR "PnPBIOS: build_devlist: Node number 0x%x is out of sequence following node 0x%x. Aborting.\n", (unsigned int)nodenum, (unsigned int)thisnodenum);
+ break;
+ }
+ }
+ kfree(node);
+
+ printk(KERN_INFO "PnPBIOS: %i node%s reported by PnP BIOS; %i recorded by driver\n",
+ nodes_got, nodes_got != 1 ? "s" : "", devs);
+}
+
+/*
+ *
+ * INIT AND EXIT
+ *
+ */
+
+static int pnpbios_disabled; /* = 0 */
+int pnpbios_dont_use_current_config; /* = 0 */
+
+#ifndef MODULE
+static int __init pnpbios_setup(char *str)
+{
+ int invert;
+
+ while ((str != NULL) && (*str != '\0')) {
+ if (strncmp(str, "off", 3) == 0)
+ pnpbios_disabled=1;
+ if (strncmp(str, "on", 2) == 0)
+ pnpbios_disabled=0;
+ invert = (strncmp(str, "no-", 3) == 0);
+ if (invert)
+ str += 3;
+ if (strncmp(str, "curr", 4) == 0)
+ pnpbios_dont_use_current_config = invert;
+ str = strchr(str, ',');
+ if (str != NULL)
+ str += strspn(str, ", \t");
+ }
+
+ return 1;
+}
+
+__setup("pnpbios=", pnpbios_setup);
+#endif
+
+/* PnP BIOS signature: "$PnP" */
+#define PNP_SIGNATURE (('$' << 0) + ('P' << 8) + ('n' << 16) + ('P' << 24))
+
+static int __init pnpbios_probe_system(void)
+{
+ union pnp_bios_install_struct *check;
+ u8 sum;
+ int length, i;
+
+ printk(KERN_INFO "PnPBIOS: Scanning system for PnP BIOS support...\n");
+
+ /*
+ * Search the defined area (0xf0000-0xffff0) for a valid PnP BIOS
+ * structure and, if one is found, sets up the selectors and
+ * entry points
+ */
+ for (check = (union pnp_bios_install_struct *) __va(0xf0000);
+ check < (union pnp_bios_install_struct *) __va(0xffff0);
+ check = (void *)check + 16) {
+ if (check->fields.signature != PNP_SIGNATURE)
+ continue;
+ printk(KERN_INFO "PnPBIOS: Found PnP BIOS installation structure at 0x%p\n", check);
+ length = check->fields.length;
+ if (!length) {
+ printk(KERN_ERR "PnPBIOS: installation structure is invalid, skipping\n");
+ continue;
+ }
+ for (sum = 0, i = 0; i < length; i++)
+ sum += check->chars[i];
+ if (sum) {
+ printk(KERN_ERR "PnPBIOS: installation structure is corrupted, skipping\n");
+ continue;
+ }
+ if (check->fields.version < 0x10) {
+ printk(KERN_WARNING "PnPBIOS: PnP BIOS version %d.%d is not supported\n",
+ check->fields.version >> 4,
+ check->fields.version & 15);
+ continue;
+ }
+ printk(KERN_INFO "PnPBIOS: PnP BIOS version %d.%d, entry 0x%x:0x%x, dseg 0x%x\n",
+ check->fields.version >> 4, check->fields.version & 15,
+ check->fields.pm16cseg, check->fields.pm16offset,
+ check->fields.pm16dseg);
+ pnp_bios_install = check;
+ return 1;
+ }
+
+ printk(KERN_INFO "PnPBIOS: PnP BIOS support was not detected.\n");
+ return 0;
+}
+
+static int __init exploding_pnp_bios(struct dmi_system_id *d)
+{
+ printk(KERN_WARNING "%s detected. Disabling PnPBIOS\n", d->ident);
+ return 0;
+}
+
+static struct dmi_system_id pnpbios_dmi_table[] = {
+ { /* PnPBIOS GPF on boot */
+ .callback = exploding_pnp_bios,
+ .ident = "Higraded P14H",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+ DMI_MATCH(DMI_BIOS_VERSION, "07.00T"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Higraded"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P14H"),
+ },
+ },
+ { /* PnPBIOS GPF on boot */
+ .callback = exploding_pnp_bios,
+ .ident = "ASUS P4P800",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_BOARD_NAME, "P4P800"),
+ },
+ },
+ { }
+};
+
+static int __init pnpbios_init(void)
+{
+ int ret;
+
+ if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table)) {
+ printk(KERN_INFO "PnPBIOS: Disabled\n");
+ return -ENODEV;
+ }
+
+#ifdef CONFIG_PNPACPI
+ if (!acpi_disabled && !pnpacpi_disabled) {
+ pnpbios_disabled = 1;
+ printk(KERN_INFO "PnPBIOS: Disabled by ACPI PNP\n");
+ return -ENODEV;
+ }
+#endif /* CONFIG_ACPI */
+
+ /* scan the system for pnpbios support */
+ if (!pnpbios_probe_system())
+ return -ENODEV;
+
+ /* make preparations for bios calls */
+ pnpbios_calls_init(pnp_bios_install);
+
+ /* read the node info */
+ ret = pnp_bios_dev_node_info(&node_info);
+ if (ret) {
+ printk(KERN_ERR "PnPBIOS: Unable to get node info. Aborting.\n");
+ return ret;
+ }
+
+ /* register with the pnp layer */
+ ret = pnp_register_protocol(&pnpbios_protocol);
+ if (ret) {
+ printk(KERN_ERR "PnPBIOS: Unable to register driver. Aborting.\n");
+ return ret;
+ }
+
+ /* start the proc interface */
+ ret = pnpbios_proc_init();
+ if (ret)
+ printk(KERN_ERR "PnPBIOS: Failed to create proc interface.\n");
+
+ /* scan for pnpbios devices */
+ build_devlist();
+
+ return 0;
+}
+
+subsys_initcall(pnpbios_init);
+
+static int __init pnpbios_thread_init(void)
+{
+ if (pnpbios_disabled)
+ return 0;
+#ifdef CONFIG_HOTPLUG
+ init_completion(&unload_sem);
+ if (kernel_thread(pnp_dock_thread, NULL, CLONE_KERNEL) > 0)
+ unloading = 0;
+#endif
+ return 0;
+}
+
+#ifndef MODULE
+
+/* init/main.c calls pnpbios_init early */
+
+/* Start the kernel thread later: */
+module_init(pnpbios_thread_init);
+
+#else
+
+/*
+ * N.B.: Building pnpbios as a module hasn't been fully implemented
+ */
+
+MODULE_LICENSE("GPL");
+
+static int __init pnpbios_init_all(void)
+{
+ int r;
+
+ r = pnpbios_init();
+ if (r)
+ return r;
+ r = pnpbios_thread_init();
+ if (r)
+ return r;
+ return 0;
+}
+
+static void __exit pnpbios_exit(void)
+{
+#ifdef CONFIG_HOTPLUG
+ unloading = 1;
+ wait_for_completion(&unload_sem);
+#endif
+ pnpbios_proc_exit();
+ /* We ought to free resources here */
+ return;
+}
+
+module_init(pnpbios_init_all);
+module_exit(pnpbios_exit);
+
+#endif
+
+EXPORT_SYMBOL(pnpbios_protocol);
diff --git a/drivers/pnp/pnpbios/pnpbios.h b/drivers/pnp/pnpbios/pnpbios.h
new file mode 100644
index 0000000..01896e7
--- /dev/null
+++ b/drivers/pnp/pnpbios/pnpbios.h
@@ -0,0 +1,47 @@
+/*
+ * pnpbios.h - contains local definitions
+ */
+
+#pragma pack(1)
+union pnp_bios_install_struct {
+ struct {
+ u32 signature; /* "$PnP" */
+ u8 version; /* in BCD */
+ u8 length; /* length in bytes, currently 21h */
+ u16 control; /* system capabilities */
+ u8 checksum; /* all bytes must add up to 0 */
+
+ u32 eventflag; /* phys. address of the event flag */
+ u16 rmoffset; /* real mode entry point */
+ u16 rmcseg;
+ u16 pm16offset; /* 16 bit protected mode entry */
+ u32 pm16cseg;
+ u32 deviceID; /* EISA encoded system ID or 0 */
+ u16 rmdseg; /* real mode data segment */
+ u32 pm16dseg; /* 16 bit pm data segment base */
+ } fields;
+ char chars[0x21]; /* To calculate the checksum */
+};
+#pragma pack()
+
+extern int pnp_bios_present(void);
+extern int pnpbios_dont_use_current_config;
+extern void *pnpbios_kmalloc(size_t size, int f);
+
+extern int pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node * node);
+extern int pnpbios_read_resources_from_node(struct pnp_resource_table *res, struct pnp_bios_node * node);
+extern int pnpbios_write_resources_to_node(struct pnp_resource_table *res, struct pnp_bios_node * node);
+extern void pnpid32_to_pnpid(u32 id, char *str);
+
+extern void pnpbios_print_status(const char * module, u16 status);
+extern void pnpbios_calls_init(union pnp_bios_install_struct * header);
+
+#ifdef CONFIG_PNPBIOS_PROC_FS
+extern int pnpbios_interface_attach_device(struct pnp_bios_node * node);
+extern int pnpbios_proc_init (void);
+extern void pnpbios_proc_exit (void);
+#else
+static inline int pnpbios_interface_attach_device(struct pnp_bios_node * node) { return 0; }
+static inline int pnpbios_proc_init (void) { return 0; }
+static inline void pnpbios_proc_exit (void) { ; }
+#endif /* CONFIG_PNPBIOS_PROC_FS */
diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c
new file mode 100644
index 0000000..6bb8e19
--- /dev/null
+++ b/drivers/pnp/pnpbios/proc.c
@@ -0,0 +1,292 @@
+/*
+ * /proc/bus/pnp interface for Plug and Play devices
+ *
+ * Written by David Hinds, dahinds@users.sourceforge.net
+ * Modified by Thomas Hood
+ *
+ * The .../devices and .../<node> and .../boot/<node> files are
+ * utilized by the lspnp and setpnp utilities, supplied with the
+ * pcmcia-cs package.
+ * http://pcmcia-cs.sourceforge.net
+ *
+ * The .../escd file is utilized by the lsescd utility written by
+ * Gunther Mayer.
+ * http://home.t-online.de/home/gunther.mayer/lsescd
+ *
+ * The .../legacy_device_resources file is not used yet.
+ *
+ * The other files are human-readable.
+ */
+
+//#include <pcmcia/config.h>
+//#include <pcmcia/k_compat.h>
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/pnpbios.h>
+#include <linux/init.h>
+
+#include <asm/uaccess.h>
+
+#include "pnpbios.h"
+
+static struct proc_dir_entry *proc_pnp = NULL;
+static struct proc_dir_entry *proc_pnp_boot = NULL;
+
+static int proc_read_pnpconfig(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ struct pnp_isa_config_struc pnps;
+
+ if (pnp_bios_isapnp_config(&pnps))
+ return -EIO;
+ return snprintf(buf, count,
+ "structure_revision %d\n"
+ "number_of_CSNs %d\n"
+ "ISA_read_data_port 0x%x\n",
+ pnps.revision,
+ pnps.no_csns,
+ pnps.isa_rd_data_port
+ );
+}
+
+static int proc_read_escdinfo(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ struct escd_info_struc escd;
+
+ if (pnp_bios_escd_info(&escd))
+ return -EIO;
+ return snprintf(buf, count,
+ "min_ESCD_write_size %d\n"
+ "ESCD_size %d\n"
+ "NVRAM_base 0x%x\n",
+ escd.min_escd_write_size,
+ escd.escd_size,
+ escd.nv_storage_base
+ );
+}
+
+#define MAX_SANE_ESCD_SIZE (32*1024)
+static int proc_read_escd(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ struct escd_info_struc escd;
+ char *tmpbuf;
+ int escd_size, escd_left_to_read, n;
+
+ if (pnp_bios_escd_info(&escd))
+ return -EIO;
+
+ /* sanity check */
+ if (escd.escd_size > MAX_SANE_ESCD_SIZE) {
+ printk(KERN_ERR "PnPBIOS: proc_read_escd: ESCD size reported by BIOS escd_info call is too great\n");
+ return -EFBIG;
+ }
+
+ tmpbuf = pnpbios_kmalloc(escd.escd_size, GFP_KERNEL);
+ if (!tmpbuf) return -ENOMEM;
+
+ if (pnp_bios_read_escd(tmpbuf, escd.nv_storage_base)) {
+ kfree(tmpbuf);
+ return -EIO;
+ }
+
+ escd_size = (unsigned char)(tmpbuf[0]) + (unsigned char)(tmpbuf[1])*256;
+
+ /* sanity check */
+ if (escd_size > MAX_SANE_ESCD_SIZE) {
+ printk(KERN_ERR "PnPBIOS: proc_read_escd: ESCD size reported by BIOS read_escd call is too great\n");
+ return -EFBIG;
+ }
+
+ escd_left_to_read = escd_size - pos;
+ if (escd_left_to_read < 0) escd_left_to_read = 0;
+ if (escd_left_to_read == 0) *eof = 1;
+ n = min(count,escd_left_to_read);
+ memcpy(buf, tmpbuf + pos, n);
+ kfree(tmpbuf);
+ *start = buf;
+ return n;
+}
+
+static int proc_read_legacyres(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ /* Assume that the following won't overflow the buffer */
+ if (pnp_bios_get_stat_res(buf))
+ return -EIO;
+
+ return count; // FIXME: Return actual length
+}
+
+static int proc_read_devices(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ struct pnp_bios_node *node;
+ u8 nodenum;
+ char *p = buf;
+
+ if (pos >= 0xff)
+ return 0;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node) return -ENOMEM;
+
+ for (nodenum=pos; nodenum<0xff; ) {
+ u8 thisnodenum = nodenum;
+ /* 26 = the number of characters per line sprintf'ed */
+ if ((p - buf + 26) > count)
+ break;
+ if (pnp_bios_get_dev_node(&nodenum, PNPMODE_DYNAMIC, node))
+ break;
+ p += sprintf(p, "%02x\t%08x\t%02x:%02x:%02x\t%04x\n",
+ node->handle, node->eisa_id,
+ node->type_code[0], node->type_code[1],
+ node->type_code[2], node->flags);
+ if (nodenum <= thisnodenum) {
+ printk(KERN_ERR "%s Node number 0x%x is out of sequence following node 0x%x. Aborting.\n", "PnPBIOS: proc_read_devices:", (unsigned int)nodenum, (unsigned int)thisnodenum);
+ *eof = 1;
+ break;
+ }
+ }
+ kfree(node);
+ if (nodenum == 0xff)
+ *eof = 1;
+ *start = (char *)((off_t)nodenum - pos);
+ return p - buf;
+}
+
+static int proc_read_node(char *buf, char **start, off_t pos,
+ int count, int *eof, void *data)
+{
+ struct pnp_bios_node *node;
+ int boot = (long)data >> 8;
+ u8 nodenum = (long)data;
+ int len;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node) return -ENOMEM;
+ if (pnp_bios_get_dev_node(&nodenum, boot, node)) {
+ kfree(node);
+ return -EIO;
+ }
+ len = node->size - sizeof(struct pnp_bios_node);
+ memcpy(buf, node->data, len);
+ kfree(node);
+ return len;
+}
+
+static int proc_write_node(struct file *file, const char __user *buf,
+ unsigned long count, void *data)
+{
+ struct pnp_bios_node *node;
+ int boot = (long)data >> 8;
+ u8 nodenum = (long)data;
+ int ret = count;
+
+ node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
+ if (!node)
+ return -ENOMEM;
+ if (pnp_bios_get_dev_node(&nodenum, boot, node)) {
+ ret = -EIO;
+ goto out;
+ }
+ if (count != node->size - sizeof(struct pnp_bios_node)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (copy_from_user(node->data, buf, count)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ if (pnp_bios_set_dev_node(node->handle, boot, node) != 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+ ret = count;
+out:
+ kfree(node);
+ return ret;
+}
+
+int pnpbios_interface_attach_device(struct pnp_bios_node * node)
+{
+ char name[3];
+ struct proc_dir_entry *ent;
+
+ sprintf(name, "%02x", node->handle);
+
+ if (!proc_pnp)
+ return -EIO;
+ if ( !pnpbios_dont_use_current_config ) {
+ ent = create_proc_entry(name, 0, proc_pnp);
+ if (ent) {
+ ent->read_proc = proc_read_node;
+ ent->write_proc = proc_write_node;
+ ent->data = (void *)(long)(node->handle);
+ }
+ }
+
+ if (!proc_pnp_boot)
+ return -EIO;
+ ent = create_proc_entry(name, 0, proc_pnp_boot);
+ if (ent) {
+ ent->read_proc = proc_read_node;
+ ent->write_proc = proc_write_node;
+ ent->data = (void *)(long)(node->handle+0x100);
+ return 0;
+ }
+
+ return -EIO;
+}
+
+/*
+ * When this is called, pnpbios functions are assumed to
+ * work and the pnpbios_dont_use_current_config flag
+ * should already have been set to the appropriate value
+ */
+int __init pnpbios_proc_init( void )
+{
+ proc_pnp = proc_mkdir("pnp", proc_bus);
+ if (!proc_pnp)
+ return -EIO;
+ proc_pnp_boot = proc_mkdir("boot", proc_pnp);
+ if (!proc_pnp_boot)
+ return -EIO;
+ create_proc_read_entry("devices", 0, proc_pnp, proc_read_devices, NULL);
+ create_proc_read_entry("configuration_info", 0, proc_pnp, proc_read_pnpconfig, NULL);
+ create_proc_read_entry("escd_info", 0, proc_pnp, proc_read_escdinfo, NULL);
+ create_proc_read_entry("escd", S_IRUSR, proc_pnp, proc_read_escd, NULL);
+ create_proc_read_entry("legacy_device_resources", 0, proc_pnp, proc_read_legacyres, NULL);
+
+ return 0;
+}
+
+void __exit pnpbios_proc_exit(void)
+{
+ int i;
+ char name[3];
+
+ if (!proc_pnp)
+ return;
+
+ for (i=0; i<0xff; i++) {
+ sprintf(name, "%02x", i);
+ if ( !pnpbios_dont_use_current_config )
+ remove_proc_entry(name, proc_pnp);
+ remove_proc_entry(name, proc_pnp_boot);
+ }
+ remove_proc_entry("legacy_device_resources", proc_pnp);
+ remove_proc_entry("escd", proc_pnp);
+ remove_proc_entry("escd_info", proc_pnp);
+ remove_proc_entry("configuration_info", proc_pnp);
+ remove_proc_entry("devices", proc_pnp);
+ remove_proc_entry("boot", proc_pnp);
+ remove_proc_entry("pnp", proc_bus);
+
+ return;
+}
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
new file mode 100644
index 0000000..618ac15
--- /dev/null
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -0,0 +1,795 @@
+/*
+ * rsparser.c - parses and encodes pnpbios resource data streams
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/ctype.h>
+#include <linux/pnp.h>
+#include <linux/pnpbios.h>
+
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+#else
+inline void pcibios_penalize_isa_irq(int irq) {}
+#endif /* CONFIG_PCI */
+
+#include "pnpbios.h"
+
+/* standard resource tags */
+#define SMALL_TAG_PNPVERNO 0x01
+#define SMALL_TAG_LOGDEVID 0x02
+#define SMALL_TAG_COMPATDEVID 0x03
+#define SMALL_TAG_IRQ 0x04
+#define SMALL_TAG_DMA 0x05
+#define SMALL_TAG_STARTDEP 0x06
+#define SMALL_TAG_ENDDEP 0x07
+#define SMALL_TAG_PORT 0x08
+#define SMALL_TAG_FIXEDPORT 0x09
+#define SMALL_TAG_VENDOR 0x0e
+#define SMALL_TAG_END 0x0f
+#define LARGE_TAG 0x80
+#define LARGE_TAG_MEM 0x81
+#define LARGE_TAG_ANSISTR 0x82
+#define LARGE_TAG_UNICODESTR 0x83
+#define LARGE_TAG_VENDOR 0x84
+#define LARGE_TAG_MEM32 0x85
+#define LARGE_TAG_FIXEDMEM32 0x86
+
+/*
+ * Resource Data Stream Format:
+ *
+ * Allocated Resources (required)
+ * end tag ->
+ * Resource Configuration Options (optional)
+ * end tag ->
+ * Compitable Device IDs (optional)
+ * final end tag ->
+ */
+
+/*
+ * Allocated Resources
+ */
+
+static void
+pnpbios_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 =
+ res->irq_resource[i].end = (unsigned long) irq;
+ pcibios_penalize_isa_irq(irq);
+ }
+}
+
+static void
+pnpbios_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 =
+ res->dma_resource[i].end = (unsigned long) dma;
+ }
+}
+
+static void
+pnpbios_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
+pnpbios_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 unsigned char *
+pnpbios_parse_allocated_resource_data(unsigned char * p, unsigned char * end, struct pnp_resource_table * res)
+{
+ unsigned int len, tag;
+ int io, size, mask, i;
+
+ if (!p)
+ return NULL;
+
+ /* Blank the resource table values */
+ pnp_init_resource_table(res);
+
+ while ((char *)p < (char *)end) {
+
+ /* determine the type of tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
+ len = (p[2] << 8) | p[1];
+ tag = p[0];
+ } else { /* small tag */
+ len = p[0] & 0x07;
+ tag = ((p[0]>>3) & 0x0f);
+ }
+
+ switch (tag) {
+
+ case LARGE_TAG_MEM:
+ if (len != 9)
+ goto len_err;
+ io = *(short *) &p[4];
+ size = *(short *) &p[10];
+ pnpbios_parse_allocated_memresource(res, io, size);
+ break;
+
+ case LARGE_TAG_ANSISTR:
+ /* ignore this for now */
+ break;
+
+ case LARGE_TAG_VENDOR:
+ /* do nothing */
+ break;
+
+ case LARGE_TAG_MEM32:
+ if (len != 17)
+ goto len_err;
+ io = *(int *) &p[4];
+ size = *(int *) &p[16];
+ pnpbios_parse_allocated_memresource(res, io, size);
+ break;
+
+ case LARGE_TAG_FIXEDMEM32:
+ if (len != 9)
+ goto len_err;
+ io = *(int *) &p[4];
+ size = *(int *) &p[8];
+ pnpbios_parse_allocated_memresource(res, io, size);
+ break;
+
+ case SMALL_TAG_IRQ:
+ if (len < 2 || len > 3)
+ goto len_err;
+ io = -1;
+ mask= p[1] + p[2]*256;
+ for (i=0;i<16;i++, mask=mask>>1)
+ if(mask & 0x01) io=i;
+ pnpbios_parse_allocated_irqresource(res, io);
+ break;
+
+ case SMALL_TAG_DMA:
+ if (len != 2)
+ goto len_err;
+ io = -1;
+ mask = p[1];
+ for (i=0;i<8;i++, mask = mask>>1)
+ if(mask & 0x01) io=i;
+ pnpbios_parse_allocated_dmaresource(res, io);
+ break;
+
+ case SMALL_TAG_PORT:
+ if (len != 7)
+ goto len_err;
+ io = p[2] + p[3] *256;
+ size = p[7];
+ pnpbios_parse_allocated_ioresource(res, io, size);
+ break;
+
+ case SMALL_TAG_VENDOR:
+ /* do nothing */
+ break;
+
+ case SMALL_TAG_FIXEDPORT:
+ if (len != 3)
+ goto len_err;
+ io = p[1] + p[2] * 256;
+ size = p[3];
+ pnpbios_parse_allocated_ioresource(res, io, size);
+ break;
+
+ case SMALL_TAG_END:
+ p = p + 2;
+ return (unsigned char *)p;
+ break;
+
+ default: /* an unkown tag */
+ len_err:
+ printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ break;
+ }
+
+ /* continue to the next tag */
+ if (p[0] & LARGE_TAG)
+ p += len + 3;
+ else
+ p += len + 1;
+ }
+
+ printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+
+ return NULL;
+}
+
+
+/*
+ * Resource Configuration Options
+ */
+
+static void
+pnpbios_parse_mem_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_mem * mem;
+ mem = pnpbios_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = ((p[5] << 8) | p[4]) << 8;
+ mem->max = ((p[7] << 8) | p[6]) << 8;
+ mem->align = (p[9] << 8) | p[8];
+ mem->size = ((p[11] << 8) | p[10]) << 8;
+ mem->flags = p[3];
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+static void
+pnpbios_parse_mem32_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_mem * mem;
+ mem = pnpbios_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
+ mem->max = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
+ mem->align = (p[15] << 24) | (p[14] << 16) | (p[13] << 8) | p[12];
+ mem->size = (p[19] << 24) | (p[18] << 16) | (p[17] << 8) | p[16];
+ mem->flags = p[3];
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+static void
+pnpbios_parse_fixed_mem32_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_mem * mem;
+ mem = pnpbios_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
+ if (!mem)
+ return;
+ mem->min = mem->max = (p[7] << 24) | (p[6] << 16) | (p[5] << 8) | p[4];
+ mem->size = (p[11] << 24) | (p[10] << 16) | (p[9] << 8) | p[8];
+ mem->align = 0;
+ mem->flags = p[3];
+ pnp_register_mem_resource(option,mem);
+ return;
+}
+
+static void
+pnpbios_parse_irq_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_irq * irq;
+ unsigned long bits;
+
+ irq = pnpbios_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
+ if (!irq)
+ return;
+ bits = (p[2] << 8) | p[1];
+ bitmap_copy(irq->map, &bits, 16);
+ if (size > 2)
+ irq->flags = p[3];
+ else
+ irq->flags = IORESOURCE_IRQ_HIGHEDGE;
+ pnp_register_irq_resource(option,irq);
+ return;
+}
+
+static void
+pnpbios_parse_dma_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_dma * dma;
+ dma = pnpbios_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL);
+ if (!dma)
+ return;
+ dma->map = p[1];
+ dma->flags = p[2];
+ pnp_register_dma_resource(option,dma);
+ return;
+}
+
+static void
+pnpbios_parse_port_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_port * port;
+ port = pnpbios_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
+ if (!port)
+ return;
+ port->min = (p[3] << 8) | p[2];
+ port->max = (p[5] << 8) | p[4];
+ port->align = p[6];
+ port->size = p[7];
+ port->flags = p[1] ? PNP_PORT_FLAG_16BITADDR : 0;
+ pnp_register_port_resource(option,port);
+ return;
+}
+
+static void
+pnpbios_parse_fixed_port_option(unsigned char *p, int size, struct pnp_option *option)
+{
+ struct pnp_port * port;
+ port = pnpbios_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
+ if (!port)
+ return;
+ port->min = port->max = (p[2] << 8) | p[1];
+ port->size = p[3];
+ port->align = 0;
+ port->flags = PNP_PORT_FLAG_FIXED;
+ pnp_register_port_resource(option,port);
+ return;
+}
+
+static unsigned char *
+pnpbios_parse_resource_option_data(unsigned char * p, unsigned char * end, struct pnp_dev *dev)
+{
+ unsigned int len, tag;
+ int priority = 0;
+ struct pnp_option *option, *option_independent;
+
+ if (!p)
+ return NULL;
+
+ option_independent = option = pnp_register_independent_option(dev);
+ if (!option)
+ return NULL;
+
+ while ((char *)p < (char *)end) {
+
+ /* determine the type of tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
+ len = (p[2] << 8) | p[1];
+ tag = p[0];
+ } else { /* small tag */
+ len = p[0] & 0x07;
+ tag = ((p[0]>>3) & 0x0f);
+ }
+
+ switch (tag) {
+
+ case LARGE_TAG_MEM:
+ if (len != 9)
+ goto len_err;
+ pnpbios_parse_mem_option(p, len, option);
+ break;
+
+ case LARGE_TAG_MEM32:
+ if (len != 17)
+ goto len_err;
+ pnpbios_parse_mem32_option(p, len, option);
+ break;
+
+ case LARGE_TAG_FIXEDMEM32:
+ if (len != 9)
+ goto len_err;
+ pnpbios_parse_fixed_mem32_option(p, len, option);
+ break;
+
+ case SMALL_TAG_IRQ:
+ if (len < 2 || len > 3)
+ goto len_err;
+ pnpbios_parse_irq_option(p, len, option);
+ break;
+
+ case SMALL_TAG_DMA:
+ if (len != 2)
+ goto len_err;
+ pnpbios_parse_dma_option(p, len, option);
+ break;
+
+ case SMALL_TAG_PORT:
+ if (len != 7)
+ goto len_err;
+ pnpbios_parse_port_option(p, len, option);
+ break;
+
+ case SMALL_TAG_VENDOR:
+ /* do nothing */
+ break;
+
+ case SMALL_TAG_FIXEDPORT:
+ if (len != 3)
+ goto len_err;
+ pnpbios_parse_fixed_port_option(p, len, option);
+ break;
+
+ case SMALL_TAG_STARTDEP:
+ if (len > 1)
+ goto len_err;
+ priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
+ if (len > 0)
+ priority = 0x100 | p[1];
+ option = pnp_register_dependent_option(dev, priority);
+ if (!option)
+ return NULL;
+ break;
+
+ case SMALL_TAG_ENDDEP:
+ if (len != 0)
+ goto len_err;
+ if (option_independent == option)
+ printk(KERN_WARNING "PnPBIOS: Missing SMALL_TAG_STARTDEP tag\n");
+ option = option_independent;
+ break;
+
+ case SMALL_TAG_END:
+ if (option_independent != option)
+ printk(KERN_WARNING "PnPBIOS: Missing SMALL_TAG_ENDDEP tag\n");
+ p = p + 2;
+ return (unsigned char *)p;
+ break;
+
+ default: /* an unkown tag */
+ len_err:
+ printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ break;
+ }
+
+ /* continue to the next tag */
+ if (p[0] & LARGE_TAG)
+ p += len + 3;
+ else
+ p += len + 1;
+ }
+
+ printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+
+ return NULL;
+}
+
+
+/*
+ * Compatible Device IDs
+ */
+
+#define HEX(id,a) hex[((id)>>a) & 15]
+#define CHAR(id,a) (0x40 + (((id)>>a) & 31))
+//
+
+void pnpid32_to_pnpid(u32 id, char *str)
+{
+ const char *hex = "0123456789abcdef";
+
+ id = be32_to_cpu(id);
+ str[0] = CHAR(id, 26);
+ str[1] = CHAR(id, 21);
+ str[2] = CHAR(id,16);
+ str[3] = HEX(id, 12);
+ str[4] = HEX(id, 8);
+ str[5] = HEX(id, 4);
+ str[6] = HEX(id, 0);
+ str[7] = '\0';
+
+ return;
+}
+//
+#undef CHAR
+#undef HEX
+
+static unsigned char *
+pnpbios_parse_compatible_ids(unsigned char *p, unsigned char *end, struct pnp_dev *dev)
+{
+ int len, tag;
+ char id[8];
+ struct pnp_id *dev_id;
+
+ if (!p)
+ return NULL;
+
+ while ((char *)p < (char *)end) {
+
+ /* determine the type of tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
+ len = (p[2] << 8) | p[1];
+ tag = p[0];
+ } else { /* small tag */
+ len = p[0] & 0x07;
+ tag = ((p[0]>>3) & 0x0f);
+ }
+
+ switch (tag) {
+
+ case LARGE_TAG_ANSISTR:
+ strncpy(dev->name, p + 3, len >= PNP_NAME_LEN ? PNP_NAME_LEN - 2 : len);
+ dev->name[len >= PNP_NAME_LEN ? PNP_NAME_LEN - 1 : len] = '\0';
+ break;
+
+ case SMALL_TAG_COMPATDEVID: /* compatible ID */
+ if (len != 4)
+ goto len_err;
+ dev_id = pnpbios_kmalloc(sizeof (struct pnp_id), GFP_KERNEL);
+ if (!dev_id)
+ return NULL;
+ memset(dev_id, 0, sizeof(struct pnp_id));
+ pnpid32_to_pnpid(p[1] | p[2] << 8 | p[3] << 16 | p[4] << 24,id);
+ memcpy(&dev_id->id, id, 7);
+ pnp_add_id(dev_id, dev);
+ break;
+
+ case SMALL_TAG_END:
+ p = p + 2;
+ return (unsigned char *)p;
+ break;
+
+ default: /* an unkown tag */
+ len_err:
+ printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ break;
+ }
+
+ /* continue to the next tag */
+ if (p[0] & LARGE_TAG)
+ p += len + 3;
+ else
+ p += len + 1;
+ }
+
+ printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+
+ return NULL;
+}
+
+
+/*
+ * Allocated Resource Encoding
+ */
+
+static void pnpbios_encode_mem(unsigned char *p, struct resource * res)
+{
+ unsigned long base = res->start;
+ unsigned long len = res->end - res->start + 1;
+ p[4] = (base >> 8) & 0xff;
+ p[5] = ((base >> 8) >> 8) & 0xff;
+ p[6] = (base >> 8) & 0xff;
+ p[7] = ((base >> 8) >> 8) & 0xff;
+ p[10] = (len >> 8) & 0xff;
+ p[11] = ((len >> 8) >> 8) & 0xff;
+ return;
+}
+
+static void pnpbios_encode_mem32(unsigned char *p, struct resource * res)
+{
+ unsigned long base = res->start;
+ unsigned long len = res->end - res->start + 1;
+ p[4] = base & 0xff;
+ p[5] = (base >> 8) & 0xff;
+ p[6] = (base >> 16) & 0xff;
+ p[7] = (base >> 24) & 0xff;
+ p[8] = base & 0xff;
+ p[9] = (base >> 8) & 0xff;
+ p[10] = (base >> 16) & 0xff;
+ p[11] = (base >> 24) & 0xff;
+ p[16] = len & 0xff;
+ p[17] = (len >> 8) & 0xff;
+ p[18] = (len >> 16) & 0xff;
+ p[19] = (len >> 24) & 0xff;
+ return;
+}
+
+static void pnpbios_encode_fixed_mem32(unsigned char *p, struct resource * res)
+{ unsigned long base = res->start;
+ unsigned long len = res->end - res->start + 1;
+ p[4] = base & 0xff;
+ p[5] = (base >> 8) & 0xff;
+ p[6] = (base >> 16) & 0xff;
+ p[7] = (base >> 24) & 0xff;
+ p[8] = len & 0xff;
+ p[9] = (len >> 8) & 0xff;
+ p[10] = (len >> 16) & 0xff;
+ p[11] = (len >> 24) & 0xff;
+ return;
+}
+
+static void pnpbios_encode_irq(unsigned char *p, struct resource * res)
+{
+ unsigned long map = 0;
+ map = 1 << res->start;
+ p[1] = map & 0xff;
+ p[2] = (map >> 8) & 0xff;
+ return;
+}
+
+static void pnpbios_encode_dma(unsigned char *p, struct resource * res)
+{
+ unsigned long map = 0;
+ map = 1 << res->start;
+ p[1] = map & 0xff;
+ return;
+}
+
+static void pnpbios_encode_port(unsigned char *p, struct resource * res)
+{
+ unsigned long base = res->start;
+ unsigned long len = res->end - res->start + 1;
+ p[2] = base & 0xff;
+ p[3] = (base >> 8) & 0xff;
+ p[4] = base & 0xff;
+ p[5] = (base >> 8) & 0xff;
+ p[7] = len & 0xff;
+ return;
+}
+
+static void pnpbios_encode_fixed_port(unsigned char *p, struct resource * res)
+{
+ unsigned long base = res->start;
+ unsigned long len = res->end - res->start + 1;
+ p[1] = base & 0xff;
+ p[2] = (base >> 8) & 0xff;
+ p[3] = len & 0xff;
+ return;
+}
+
+static unsigned char *
+pnpbios_encode_allocated_resource_data(unsigned char * p, unsigned char * end, struct pnp_resource_table * res)
+{
+ unsigned int len, tag;
+ int port = 0, irq = 0, dma = 0, mem = 0;
+
+ if (!p)
+ return NULL;
+
+ while ((char *)p < (char *)end) {
+
+ /* determine the type of tag */
+ if (p[0] & LARGE_TAG) { /* large tag */
+ len = (p[2] << 8) | p[1];
+ tag = p[0];
+ } else { /* small tag */
+ len = p[0] & 0x07;
+ tag = ((p[0]>>3) & 0x0f);
+ }
+
+ switch (tag) {
+
+ case LARGE_TAG_MEM:
+ if (len != 9)
+ goto len_err;
+ pnpbios_encode_mem(p, &res->mem_resource[mem]);
+ mem++;
+ break;
+
+ case LARGE_TAG_MEM32:
+ if (len != 17)
+ goto len_err;
+ pnpbios_encode_mem32(p, &res->mem_resource[mem]);
+ mem++;
+ break;
+
+ case LARGE_TAG_FIXEDMEM32:
+ if (len != 9)
+ goto len_err;
+ pnpbios_encode_fixed_mem32(p, &res->mem_resource[mem]);
+ mem++;
+ break;
+
+ case SMALL_TAG_IRQ:
+ if (len < 2 || len > 3)
+ goto len_err;
+ pnpbios_encode_irq(p, &res->irq_resource[irq]);
+ irq++;
+ break;
+
+ case SMALL_TAG_DMA:
+ if (len != 2)
+ goto len_err;
+ pnpbios_encode_dma(p, &res->dma_resource[dma]);
+ dma++;
+ break;
+
+ case SMALL_TAG_PORT:
+ if (len != 7)
+ goto len_err;
+ pnpbios_encode_port(p, &res->port_resource[port]);
+ port++;
+ break;
+
+ case SMALL_TAG_VENDOR:
+ /* do nothing */
+ break;
+
+ case SMALL_TAG_FIXEDPORT:
+ if (len != 3)
+ goto len_err;
+ pnpbios_encode_fixed_port(p, &res->port_resource[port]);
+ port++;
+ break;
+
+ case SMALL_TAG_END:
+ p = p + 2;
+ return (unsigned char *)p;
+ break;
+
+ default: /* an unkown tag */
+ len_err:
+ printk(KERN_ERR "PnPBIOS: Unknown tag '0x%x', length '%d'.\n", tag, len);
+ break;
+ }
+
+ /* continue to the next tag */
+ if (p[0] & LARGE_TAG)
+ p += len + 3;
+ else
+ p += len + 1;
+ }
+
+ printk(KERN_ERR "PnPBIOS: Resource structure does not contain an end tag.\n");
+
+ return NULL;
+}
+
+
+/*
+ * Core Parsing Functions
+ */
+
+int
+pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node * node)
+{
+ unsigned char * p = (char *)node->data;
+ unsigned char * end = (char *)(node->data + node->size);
+ p = pnpbios_parse_allocated_resource_data(p,end,&dev->res);
+ if (!p)
+ return -EIO;
+ p = pnpbios_parse_resource_option_data(p,end,dev);
+ if (!p)
+ return -EIO;
+ p = pnpbios_parse_compatible_ids(p,end,dev);
+ if (!p)
+ return -EIO;
+ return 0;
+}
+
+int
+pnpbios_read_resources_from_node(struct pnp_resource_table *res,
+ struct pnp_bios_node * node)
+{
+ unsigned char * p = (char *)node->data;
+ unsigned char * end = (char *)(node->data + node->size);
+ p = pnpbios_parse_allocated_resource_data(p,end,res);
+ if (!p)
+ return -EIO;
+ return 0;
+}
+
+int
+pnpbios_write_resources_to_node(struct pnp_resource_table *res,
+ struct pnp_bios_node * node)
+{
+ unsigned char * p = (char *)node->data;
+ unsigned char * end = (char *)(node->data + node->size);
+ p = pnpbios_encode_allocated_resource_data(p,end,res);
+ if (!p)
+ return -EIO;
+ return 0;
+}
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
new file mode 100644
index 0000000..596a02d
--- /dev/null
+++ b/drivers/pnp/quirks.c
@@ -0,0 +1,152 @@
+/*
+ * This file contains quirk handling code for PnP devices
+ * Some devices do not report all their resources, and need to have extra
+ * resources added. This is most easily accomplished at initialisation time
+ * when building up the resource structure for the first time.
+ *
+ * Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk>
+ *
+ * Heavily based on PCI quirks handling which is
+ *
+ * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#include <linux/pnp.h>
+#include "base.h"
+
+
+static void quirk_awe32_resources(struct pnp_dev *dev)
+{
+ struct pnp_port *port, *port2, *port3;
+ struct pnp_option *res = dev->dependent;
+
+ /*
+ * Unfortunately the isapnp_add_port_resource is too tightly bound
+ * into the PnP discovery sequence, and cannot be used. Link in the
+ * two extra ports (at offset 0x400 and 0x800 from the one given) by
+ * hand.
+ */
+ for ( ; res ; res = res->next ) {
+ port2 = pnp_alloc(sizeof(struct pnp_port));
+ if (!port2)
+ return;
+ port3 = pnp_alloc(sizeof(struct pnp_port));
+ if (!port3) {
+ kfree(port2);
+ return;
+ }
+ port = res->port;
+ memcpy(port2, port, sizeof(struct pnp_port));
+ memcpy(port3, port, sizeof(struct pnp_port));
+ port->next = port2;
+ port2->next = port3;
+ port2->min += 0x400;
+ port2->max += 0x400;
+ port3->min += 0x800;
+ port3->max += 0x800;
+ }
+ printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
+}
+
+static void quirk_cmi8330_resources(struct pnp_dev *dev)
+{
+ struct pnp_option *res = dev->dependent;
+ unsigned long tmp;
+
+ for ( ; res ; res = res->next ) {
+
+ struct pnp_irq *irq;
+ struct pnp_dma *dma;
+
+ for( irq = res->irq; irq; irq = irq->next ) { // Valid irqs are 5, 7, 10
+ tmp = 0x04A0;
+ bitmap_copy(irq->map, &tmp, 16); // 0000 0100 1010 0000
+ }
+
+ for( dma = res->dma; dma; dma = dma->next ) // Valid 8bit dma channels are 1,3
+ if( ( dma->flags & IORESOURCE_DMA_TYPE_MASK ) == IORESOURCE_DMA_8BIT )
+ dma->map = 0x000A;
+ }
+ printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
+}
+
+static void quirk_sb16audio_resources(struct pnp_dev *dev)
+{
+ struct pnp_port *port;
+ struct pnp_option *res = dev->dependent;
+ int changed = 0;
+
+ /*
+ * The default range on the mpu port for these devices is 0x388-0x388.
+ * Here we increase that range so that two such cards can be
+ * auto-configured.
+ */
+
+ for( ; res ; res = res->next ) {
+ port = res->port;
+ if(!port)
+ continue;
+ port = port->next;
+ if(!port)
+ continue;
+ port = port->next;
+ if(!port)
+ continue;
+ if(port->min != port->max)
+ continue;
+ port->max += 0x70;
+ changed = 1;
+ }
+ if(changed)
+ printk(KERN_INFO "pnp: SB audio device quirk - increasing port range\n");
+ return;
+}
+
+/*
+ * PnP Quirks
+ * Cards or devices that need some tweaking due to incomplete resource info
+ */
+
+static struct pnp_fixup pnp_fixups[] = {
+ /* Soundblaster awe io port quirk */
+ { "CTL0021", quirk_awe32_resources },
+ { "CTL0022", quirk_awe32_resources },
+ { "CTL0023", quirk_awe32_resources },
+ /* CMI 8330 interrupt and dma fix */
+ { "@X@0001", quirk_cmi8330_resources },
+ /* Soundblaster audio device io port range quirk */
+ { "CTL0001", quirk_sb16audio_resources },
+ { "CTL0031", quirk_sb16audio_resources },
+ { "CTL0041", quirk_sb16audio_resources },
+ { "CTL0042", quirk_sb16audio_resources },
+ { "CTL0043", quirk_sb16audio_resources },
+ { "CTL0044", quirk_sb16audio_resources },
+ { "CTL0045", quirk_sb16audio_resources },
+ { "" }
+};
+
+void pnp_fixup_device(struct pnp_dev *dev)
+{
+ int i = 0;
+
+ while (*pnp_fixups[i].id) {
+ if (compare_pnp_id(dev->id,pnp_fixups[i].id)) {
+ pnp_dbg("Calling quirk for %s",
+ dev->dev.bus_id);
+ pnp_fixups[i].quirk_function(dev);
+ }
+ i++;
+ }
+}
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
new file mode 100644
index 0000000..2d1322d
--- /dev/null
+++ b/drivers/pnp/resource.c
@@ -0,0 +1,542 @@
+/*
+ * resource.c - Contains functions for registering and analyzing resource information
+ *
+ * based on isapnp.c resource management (c) Jaroslav Kysela <perex@suse.cz>
+ * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+
+#include <linux/pnp.h>
+#include "base.h"
+
+static int pnp_reserve_irq[16] = { [0 ... 15] = -1 }; /* reserve (don't use) some IRQ */
+static int pnp_reserve_dma[8] = { [0 ... 7] = -1 }; /* reserve (don't use) some DMA */
+static int pnp_reserve_io[16] = { [0 ... 15] = -1 }; /* reserve (don't use) some I/O region */
+static int pnp_reserve_mem[16] = { [0 ... 15] = -1 }; /* reserve (don't use) some memory region */
+
+
+/*
+ * option registration
+ */
+
+static struct pnp_option * pnp_build_option(int priority)
+{
+ struct pnp_option *option = pnp_alloc(sizeof(struct pnp_option));
+
+ /* check if pnp_alloc ran out of memory */
+ if (!option)
+ return NULL;
+
+ option->priority = priority & 0xff;
+ /* make sure the priority is valid */
+ if (option->priority > PNP_RES_PRIORITY_FUNCTIONAL)
+ option->priority = PNP_RES_PRIORITY_INVALID;
+
+ return option;
+}
+
+struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev)
+{
+ struct pnp_option *option;
+ if (!dev)
+ return NULL;
+
+ option = pnp_build_option(PNP_RES_PRIORITY_PREFERRED);
+
+ /* this should never happen but if it does we'll try to continue */
+ if (dev->independent)
+ pnp_err("independent resource already registered");
+ dev->independent = option;
+ return option;
+}
+
+struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority)
+{
+ struct pnp_option *option;
+ if (!dev)
+ return NULL;
+
+ option = pnp_build_option(priority);
+
+ if (dev->dependent) {
+ struct pnp_option *parent = dev->dependent;
+ while (parent->next)
+ parent = parent->next;
+ parent->next = option;
+ } else
+ dev->dependent = option;
+ return option;
+}
+
+int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data)
+{
+ struct pnp_irq *ptr;
+ if (!option)
+ return -EINVAL;
+ if (!data)
+ return -EINVAL;
+
+ ptr = option->irq;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = data;
+ else
+ option->irq = data;
+
+#ifdef CONFIG_PCI
+ {
+ int i;
+
+ for (i = 0; i < 16; i++)
+ if (test_bit(i, data->map))
+ pcibios_penalize_isa_irq(i);
+ }
+#endif
+ return 0;
+}
+
+int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data)
+{
+ struct pnp_dma *ptr;
+ if (!option)
+ return -EINVAL;
+ if (!data)
+ return -EINVAL;
+
+ ptr = option->dma;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = data;
+ else
+ option->dma = data;
+
+ return 0;
+}
+
+int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data)
+{
+ struct pnp_port *ptr;
+ if (!option)
+ return -EINVAL;
+ if (!data)
+ return -EINVAL;
+
+ ptr = option->port;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = data;
+ else
+ option->port = data;
+
+ return 0;
+}
+
+int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data)
+{
+ struct pnp_mem *ptr;
+ if (!option)
+ return -EINVAL;
+ if (!data)
+ return -EINVAL;
+
+ ptr = option->mem;
+ while (ptr && ptr->next)
+ ptr = ptr->next;
+ if (ptr)
+ ptr->next = data;
+ else
+ option->mem = data;
+ return 0;
+}
+
+static void pnp_free_port(struct pnp_port *port)
+{
+ struct pnp_port *next;
+
+ while (port) {
+ next = port->next;
+ kfree(port);
+ port = next;
+ }
+}
+
+static void pnp_free_irq(struct pnp_irq *irq)
+{
+ struct pnp_irq *next;
+
+ while (irq) {
+ next = irq->next;
+ kfree(irq);
+ irq = next;
+ }
+}
+
+static void pnp_free_dma(struct pnp_dma *dma)
+{
+ struct pnp_dma *next;
+
+ while (dma) {
+ next = dma->next;
+ kfree(dma);
+ dma = next;
+ }
+}
+
+static void pnp_free_mem(struct pnp_mem *mem)
+{
+ struct pnp_mem *next;
+
+ while (mem) {
+ next = mem->next;
+ kfree(mem);
+ mem = next;
+ }
+}
+
+void pnp_free_option(struct pnp_option *option)
+{
+ struct pnp_option *next;
+
+ while (option) {
+ next = option->next;
+ pnp_free_port(option->port);
+ pnp_free_irq(option->irq);
+ pnp_free_dma(option->dma);
+ pnp_free_mem(option->mem);
+ kfree(option);
+ option = next;
+ }
+}
+
+
+/*
+ * resource validity checking
+ */
+
+#define length(start, end) (*(end) - *(start) + 1)
+
+/* Two ranges conflict if one doesn't end before the other starts */
+#define ranged_conflict(starta, enda, startb, endb) \
+ !((*(enda) < *(startb)) || (*(endb) < *(starta)))
+
+#define cannot_compare(flags) \
+((flags) & (IORESOURCE_UNSET | IORESOURCE_DISABLED))
+
+int pnp_check_port(struct pnp_dev * dev, int idx)
+{
+ int tmp;
+ struct pnp_dev *tdev;
+ unsigned long *port, *end, *tport, *tend;
+ port = &dev->res.port_resource[idx].start;
+ end = &dev->res.port_resource[idx].end;
+
+ /* if the resource doesn't exist, don't complain about it */
+ if (cannot_compare(dev->res.port_resource[idx].flags))
+ return 1;
+
+ /* check if the resource is already in use, skip if the
+ * device is active because it itself may be in use */
+ if(!dev->active) {
+ if (__check_region(&ioport_resource, *port, length(port,end)))
+ return 0;
+ }
+
+ /* check if the resource is reserved */
+ for (tmp = 0; tmp < 8; tmp++) {
+ int rport = pnp_reserve_io[tmp << 1];
+ int rend = pnp_reserve_io[(tmp << 1) + 1] + rport - 1;
+ if (ranged_conflict(port,end,&rport,&rend))
+ return 0;
+ }
+
+ /* check for internal conflicts */
+ for (tmp = 0; tmp < PNP_MAX_PORT && tmp != idx; tmp++) {
+ if (dev->res.port_resource[tmp].flags & IORESOURCE_IO) {
+ tport = &dev->res.port_resource[tmp].start;
+ tend = &dev->res.port_resource[tmp].end;
+ if (ranged_conflict(port,end,tport,tend))
+ return 0;
+ }
+ }
+
+ /* check for conflicts with other pnp devices */
+ pnp_for_each_dev(tdev) {
+ if (tdev == dev)
+ continue;
+ for (tmp = 0; tmp < PNP_MAX_PORT; tmp++) {
+ if (tdev->res.port_resource[tmp].flags & IORESOURCE_IO) {
+ if (cannot_compare(tdev->res.port_resource[tmp].flags))
+ continue;
+ tport = &tdev->res.port_resource[tmp].start;
+ tend = &tdev->res.port_resource[tmp].end;
+ if (ranged_conflict(port,end,tport,tend))
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+int pnp_check_mem(struct pnp_dev * dev, int idx)
+{
+ int tmp;
+ struct pnp_dev *tdev;
+ unsigned long *addr, *end, *taddr, *tend;
+ addr = &dev->res.mem_resource[idx].start;
+ end = &dev->res.mem_resource[idx].end;
+
+ /* if the resource doesn't exist, don't complain about it */
+ if (cannot_compare(dev->res.mem_resource[idx].flags))
+ return 1;
+
+ /* check if the resource is already in use, skip if the
+ * device is active because it itself may be in use */
+ if(!dev->active) {
+ if (check_mem_region(*addr, length(addr,end)))
+ return 0;
+ }
+
+ /* check if the resource is reserved */
+ for (tmp = 0; tmp < 8; tmp++) {
+ int raddr = pnp_reserve_mem[tmp << 1];
+ int rend = pnp_reserve_mem[(tmp << 1) + 1] + raddr - 1;
+ if (ranged_conflict(addr,end,&raddr,&rend))
+ return 0;
+ }
+
+ /* check for internal conflicts */
+ for (tmp = 0; tmp < PNP_MAX_MEM && tmp != idx; tmp++) {
+ if (dev->res.mem_resource[tmp].flags & IORESOURCE_MEM) {
+ taddr = &dev->res.mem_resource[tmp].start;
+ tend = &dev->res.mem_resource[tmp].end;
+ if (ranged_conflict(addr,end,taddr,tend))
+ return 0;
+ }
+ }
+
+ /* check for conflicts with other pnp devices */
+ pnp_for_each_dev(tdev) {
+ if (tdev == dev)
+ continue;
+ for (tmp = 0; tmp < PNP_MAX_MEM; tmp++) {
+ if (tdev->res.mem_resource[tmp].flags & IORESOURCE_MEM) {
+ if (cannot_compare(tdev->res.mem_resource[tmp].flags))
+ continue;
+ taddr = &tdev->res.mem_resource[tmp].start;
+ tend = &tdev->res.mem_resource[tmp].end;
+ if (ranged_conflict(addr,end,taddr,tend))
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+static irqreturn_t pnp_test_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ return IRQ_HANDLED;
+}
+
+int pnp_check_irq(struct pnp_dev * dev, int idx)
+{
+ int tmp;
+ struct pnp_dev *tdev;
+ unsigned long * irq = &dev->res.irq_resource[idx].start;
+
+ /* if the resource doesn't exist, don't complain about it */
+ if (cannot_compare(dev->res.irq_resource[idx].flags))
+ return 1;
+
+ /* check if the resource is valid */
+ if (*irq < 0 || *irq > 15)
+ return 0;
+
+ /* check if the resource is reserved */
+ for (tmp = 0; tmp < 16; tmp++) {
+ if (pnp_reserve_irq[tmp] == *irq)
+ return 0;
+ }
+
+ /* check for internal conflicts */
+ for (tmp = 0; tmp < PNP_MAX_IRQ && tmp != idx; tmp++) {
+ if (dev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
+ if (dev->res.irq_resource[tmp].start == *irq)
+ return 0;
+ }
+ }
+
+#ifdef CONFIG_PCI
+ /* check if the resource is being used by a pci device */
+ {
+ struct pci_dev *pci = NULL;
+ for_each_pci_dev(pci) {
+ if (pci->irq == *irq)
+ return 0;
+ }
+ }
+#endif
+
+ /* check if the resource is already in use, skip if the
+ * device is active because it itself may be in use */
+ if(!dev->active) {
+ if (request_irq(*irq, pnp_test_handler, SA_INTERRUPT, "pnp", NULL))
+ return 0;
+ free_irq(*irq, NULL);
+ }
+
+ /* check for conflicts with other pnp devices */
+ pnp_for_each_dev(tdev) {
+ if (tdev == dev)
+ continue;
+ for (tmp = 0; tmp < PNP_MAX_IRQ; tmp++) {
+ if (tdev->res.irq_resource[tmp].flags & IORESOURCE_IRQ) {
+ if (cannot_compare(tdev->res.irq_resource[tmp].flags))
+ continue;
+ if ((tdev->res.irq_resource[tmp].start == *irq))
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+int pnp_check_dma(struct pnp_dev * dev, int idx)
+{
+#ifndef CONFIG_IA64
+ int tmp;
+ struct pnp_dev *tdev;
+ unsigned long * dma = &dev->res.dma_resource[idx].start;
+
+ /* if the resource doesn't exist, don't complain about it */
+ if (cannot_compare(dev->res.dma_resource[idx].flags))
+ return 1;
+
+ /* check if the resource is valid */
+ if (*dma < 0 || *dma == 4 || *dma > 7)
+ return 0;
+
+ /* check if the resource is reserved */
+ for (tmp = 0; tmp < 8; tmp++) {
+ if (pnp_reserve_dma[tmp] == *dma)
+ return 0;
+ }
+
+ /* check for internal conflicts */
+ for (tmp = 0; tmp < PNP_MAX_DMA && tmp != idx; tmp++) {
+ if (dev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
+ if (dev->res.dma_resource[tmp].start == *dma)
+ return 0;
+ }
+ }
+
+ /* check if the resource is already in use, skip if the
+ * device is active because it itself may be in use */
+ if(!dev->active) {
+ if (request_dma(*dma, "pnp"))
+ return 0;
+ free_dma(*dma);
+ }
+
+ /* check for conflicts with other pnp devices */
+ pnp_for_each_dev(tdev) {
+ if (tdev == dev)
+ continue;
+ for (tmp = 0; tmp < PNP_MAX_DMA; tmp++) {
+ if (tdev->res.dma_resource[tmp].flags & IORESOURCE_DMA) {
+ if (cannot_compare(tdev->res.dma_resource[tmp].flags))
+ continue;
+ if ((tdev->res.dma_resource[tmp].start == *dma))
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+#else
+ /* IA64 hasn't legacy DMA */
+ return 0;
+#endif
+}
+
+
+EXPORT_SYMBOL(pnp_register_dependent_option);
+EXPORT_SYMBOL(pnp_register_independent_option);
+EXPORT_SYMBOL(pnp_register_irq_resource);
+EXPORT_SYMBOL(pnp_register_dma_resource);
+EXPORT_SYMBOL(pnp_register_port_resource);
+EXPORT_SYMBOL(pnp_register_mem_resource);
+
+
+/* format is: pnp_reserve_irq=irq1[,irq2] .... */
+
+static int __init pnp_setup_reserve_irq(char *str)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ if (get_option(&str,&pnp_reserve_irq[i]) != 2)
+ break;
+ return 1;
+}
+
+__setup("pnp_reserve_irq=", pnp_setup_reserve_irq);
+
+/* format is: pnp_reserve_dma=dma1[,dma2] .... */
+
+static int __init pnp_setup_reserve_dma(char *str)
+{
+ int i;
+
+ for (i = 0; i < 8; i++)
+ if (get_option(&str,&pnp_reserve_dma[i]) != 2)
+ break;
+ return 1;
+}
+
+__setup("pnp_reserve_dma=", pnp_setup_reserve_dma);
+
+/* format is: pnp_reserve_io=io1,size1[,io2,size2] .... */
+
+static int __init pnp_setup_reserve_io(char *str)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ if (get_option(&str,&pnp_reserve_io[i]) != 2)
+ break;
+ return 1;
+}
+
+__setup("pnp_reserve_io=", pnp_setup_reserve_io);
+
+/* format is: pnp_reserve_mem=mem1,size1[,mem2,size2] .... */
+
+static int __init pnp_setup_reserve_mem(char *str)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ if (get_option(&str,&pnp_reserve_mem[i]) != 2)
+ break;
+ return 1;
+}
+
+__setup("pnp_reserve_mem=", pnp_setup_reserve_mem);
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
new file mode 100644
index 0000000..b952aec
--- /dev/null
+++ b/drivers/pnp/support.c
@@ -0,0 +1,40 @@
+/*
+ * support.c - provides standard pnp functions for the use of pnp protocol drivers,
+ *
+ * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/ctype.h>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#include <linux/pnp.h>
+#include "base.h"
+
+/**
+ * pnp_is_active - Determines if a device is active based on its current resources
+ * @dev: pointer to the desired PnP device
+ *
+ */
+
+int pnp_is_active(struct pnp_dev * dev)
+{
+ if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
+ !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
+ pnp_irq(dev, 0) == -1 &&
+ pnp_dma(dev, 0) == -1)
+ return 0;
+ else
+ return 1;
+}
+
+
+
+EXPORT_SYMBOL(pnp_is_active);
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
new file mode 100644
index 0000000..d42015c
--- /dev/null
+++ b/drivers/pnp/system.c
@@ -0,0 +1,111 @@
+/*
+ * system.c - a driver for reserving pnp system resources
+ *
+ * Some code is based on pnpbios_core.c
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/pnp.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+
+static const struct pnp_device_id pnp_dev_table[] = {
+ /* General ID for reserving resources */
+ { "PNP0c02", 0 },
+ /* memory controller */
+ { "PNP0c01", 0 },
+ { "", 0 }
+};
+
+static void reserve_ioport_range(char *pnpid, int start, int end)
+{
+ struct resource *res;
+ char *regionid;
+
+ regionid = kmalloc(16, GFP_KERNEL);
+ if ( regionid == NULL )
+ return;
+ snprintf(regionid, 16, "pnp %s", pnpid);
+ res = request_region(start,end-start+1,regionid);
+ if ( res == NULL )
+ kfree( regionid );
+ else
+ res->flags &= ~IORESOURCE_BUSY;
+ /*
+ * Failures at this point are usually harmless. pci quirks for
+ * example do reserve stuff they know about too, so we may well
+ * have double reservations.
+ */
+ printk(KERN_INFO
+ "pnp: %s: ioport range 0x%x-0x%x %s reserved\n",
+ pnpid, start, end,
+ NULL != res ? "has been" : "could not be"
+ );
+
+ return;
+}
+
+static void reserve_resources_of_dev( struct pnp_dev *dev )
+{
+ int i;
+
+ for (i=0;i<PNP_MAX_PORT;i++) {
+ if (!pnp_port_valid(dev, i))
+ /* end of resources */
+ continue;
+ if (pnp_port_start(dev, i) == 0)
+ /* disabled */
+ /* Do nothing */
+ continue;
+ if (pnp_port_start(dev, i) < 0x100)
+ /*
+ * Below 0x100 is only standard PC hardware
+ * (pics, kbd, timer, dma, ...)
+ * We should not get resource conflicts there,
+ * and the kernel reserves these anyway
+ * (see arch/i386/kernel/setup.c).
+ * So, do nothing
+ */
+ continue;
+ if (pnp_port_end(dev, i) < pnp_port_start(dev, i))
+ /* invalid endpoint */
+ /* Do nothing */
+ continue;
+ reserve_ioport_range(
+ dev->dev.bus_id,
+ pnp_port_start(dev, i),
+ pnp_port_end(dev, i)
+ );
+ }
+
+ return;
+}
+
+static int system_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
+{
+ reserve_resources_of_dev(dev);
+ return 0;
+}
+
+static struct pnp_driver system_pnp_driver = {
+ .name = "system",
+ .id_table = pnp_dev_table,
+ .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
+ .probe = system_pnp_probe,
+ .remove = NULL,
+};
+
+static int __init pnp_system_init(void)
+{
+ return pnp_register_driver(&system_pnp_driver);
+}
+
+/**
+ * Reserve motherboard resources after PCI claim BARs,
+ * but before PCI assign resources for uninitialized PCI devices
+ */
+fs_initcall(pnp_system_init);
