Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 180 insertions, 0 deletions

diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
new file mode 100644
index 000000000000..deed92459bc5
--- /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);