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!

1 files changed, 269 insertions, 0 deletions

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);