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/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
new file mode 100644
index 0000000..ce030d1
--- /dev/null
+++ b/drivers/usb/misc/idmouse.c
@@ -0,0 +1,443 @@
+/* Siemens ID Mouse driver v0.5
+
+ 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.
+
+ Copyright (C) 2004-5 by Florian 'Floe' Echtler <echtler@fs.tum.de>
+ and Andreas 'ad' Deresch <aderesch@fs.tum.de>
+
+ Derived from the USB Skeleton driver 1.1,
+ Copyright (C) 2003 Greg Kroah-Hartman (greg@kroah.com)
+
+*/
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+#include <linux/completion.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+
+#define WIDTH 225
+#define HEIGHT 288
+#define HEADER "P5 225 288 255 "
+#define IMGSIZE ((WIDTH * HEIGHT) + sizeof(HEADER)-1)
+
+/* Version Information */
+#define DRIVER_VERSION "0.5"
+#define DRIVER_SHORT "idmouse"
+#define DRIVER_AUTHOR "Florian 'Floe' Echtler <echtler@fs.tum.de>"
+#define DRIVER_DESC "Siemens ID Mouse FingerTIP Sensor Driver"
+
+/* Siemens ID Mouse */
+#define USB_IDMOUSE_VENDOR_ID 0x0681
+#define USB_IDMOUSE_PRODUCT_ID 0x0005
+
+/* we still need a minor number */
+#define USB_IDMOUSE_MINOR_BASE 132
+
+static struct usb_device_id idmouse_table[] = {
+ {USB_DEVICE(USB_IDMOUSE_VENDOR_ID, USB_IDMOUSE_PRODUCT_ID)},
+ {} /* null entry at the end */
+};
+
+MODULE_DEVICE_TABLE(usb, idmouse_table);
+
+/* structure to hold all of our device specific stuff */
+struct usb_idmouse {
+
+ struct usb_device *udev; /* save off the usb device pointer */
+ struct usb_interface *interface; /* the interface for this device */
+
+ unsigned char *bulk_in_buffer; /* the buffer to receive data */
+ size_t bulk_in_size; /* the size of the receive buffer */
+ __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+
+ int open; /* if the port is open or not */
+ int present; /* if the device is not disconnected */
+ struct semaphore sem; /* locks this structure */
+
+};
+
+/* local function prototypes */
+static ssize_t idmouse_read(struct file *file, char __user *buffer,
+ size_t count, loff_t * ppos);
+
+static int idmouse_open(struct inode *inode, struct file *file);
+static int idmouse_release(struct inode *inode, struct file *file);
+
+static int idmouse_probe(struct usb_interface *interface,
+ const struct usb_device_id *id);
+
+static void idmouse_disconnect(struct usb_interface *interface);
+
+/* file operation pointers */
+static struct file_operations idmouse_fops = {
+ .owner = THIS_MODULE,
+ .read = idmouse_read,
+ .open = idmouse_open,
+ .release = idmouse_release,
+};
+
+/* class driver information for devfs */
+static struct usb_class_driver idmouse_class = {
+ .name = "usb/idmouse%d",
+ .fops = &idmouse_fops,
+ .mode = S_IFCHR | S_IRUSR | S_IRGRP | S_IROTH, /* filemode (char, 444) */
+ .minor_base = USB_IDMOUSE_MINOR_BASE,
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver idmouse_driver = {
+ .owner = THIS_MODULE,
+ .name = DRIVER_SHORT,
+ .probe = idmouse_probe,
+ .disconnect = idmouse_disconnect,
+ .id_table = idmouse_table,
+};
+
+// prevent races between open() and disconnect()
+static DECLARE_MUTEX(disconnect_sem);
+
+static int idmouse_create_image(struct usb_idmouse *dev)
+{
+ int bytes_read = 0;
+ int bulk_read = 0;
+ int result = 0;
+
+ if (dev->bulk_in_size < sizeof(HEADER))
+ return -ENOMEM;
+
+ memcpy(dev->bulk_in_buffer,HEADER,sizeof(HEADER)-1);
+ bytes_read += sizeof(HEADER)-1;
+
+ /* Dump the setup packets. Yes, they are uncommented, simply
+ because they were sniffed under Windows using SnoopyPro.
+ I _guess_ that 0x22 is a kind of reset command and 0x21
+ means init..
+ */
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x21, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x20, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x22, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x21, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x20, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x20, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+
+ /* loop over a blocking bulk read to get data from the device */
+ while (bytes_read < IMGSIZE) {
+ result = usb_bulk_msg (dev->udev,
+ usb_rcvbulkpipe (dev->udev, dev->bulk_in_endpointAddr),
+ dev->bulk_in_buffer + bytes_read,
+ dev->bulk_in_size, &bulk_read, 5000);
+ if (result < 0)
+ return result;
+ if (signal_pending(current))
+ return -EINTR;
+ bytes_read += bulk_read;
+ }
+
+ /* reset the device */
+ result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
+ 0x22, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
+ if (result < 0)
+ return result;
+
+ /* should be IMGSIZE == 64815 */
+ dbg("read %d bytes fingerprint data", bytes_read);
+ return 0;
+}
+
+static inline void idmouse_delete(struct usb_idmouse *dev)
+{
+ kfree(dev->bulk_in_buffer);
+ kfree(dev);
+}
+
+static int idmouse_open(struct inode *inode, struct file *file)
+{
+ struct usb_idmouse *dev = NULL;
+ struct usb_interface *interface;
+ int result = 0;
+
+ /* prevent disconnects */
+ down(&disconnect_sem);
+
+ /* get the interface from minor number and driver information */
+ interface = usb_find_interface (&idmouse_driver, iminor (inode));
+ if (!interface) {
+ up(&disconnect_sem);
+ return -ENODEV;
+ }
+ /* get the device information block from the interface */
+ dev = usb_get_intfdata(interface);
+ if (!dev) {
+ up(&disconnect_sem);
+ return -ENODEV;
+ }
+
+ /* lock this device */
+ down(&dev->sem);
+
+ /* check if already open */
+ if (dev->open) {
+
+ /* already open, so fail */
+ result = -EBUSY;
+
+ } else {
+
+ /* create a new image and check for success */
+ result = idmouse_create_image (dev);
+ if (result)
+ goto error;
+
+ /* increment our usage count for the driver */
+ ++dev->open;
+
+ /* save our object in the file's private structure */
+ file->private_data = dev;
+
+ }
+
+error:
+
+ /* unlock this device */
+ up(&dev->sem);
+
+ /* unlock the disconnect semaphore */
+ up(&disconnect_sem);
+ return result;
+}
+
+static int idmouse_release(struct inode *inode, struct file *file)
+{
+ struct usb_idmouse *dev;
+
+ /* prevent a race condition with open() */
+ down(&disconnect_sem);
+
+ dev = (struct usb_idmouse *) file->private_data;
+
+ if (dev == NULL) {
+ up(&disconnect_sem);
+ return -ENODEV;
+ }
+
+ /* lock our device */
+ down(&dev->sem);
+
+ /* are we really open? */
+ if (dev->open <= 0) {
+ up(&dev->sem);
+ up(&disconnect_sem);
+ return -ENODEV;
+ }
+
+ --dev->open;
+
+ if (!dev->present) {
+ /* the device was unplugged before the file was released */
+ up(&dev->sem);
+ idmouse_delete(dev);
+ up(&disconnect_sem);
+ return 0;
+ }
+
+ up(&dev->sem);
+ up(&disconnect_sem);
+ return 0;
+}
+
+static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count,
+ loff_t * ppos)
+{
+ struct usb_idmouse *dev;
+ int result = 0;
+
+ dev = (struct usb_idmouse *) file->private_data;
+
+ // lock this object
+ down (&dev->sem);
+
+ // verify that the device wasn't unplugged
+ if (!dev->present) {
+ up (&dev->sem);
+ return -ENODEV;
+ }
+
+ if (*ppos >= IMGSIZE) {
+ up (&dev->sem);
+ return 0;
+ }
+
+ if (count > IMGSIZE - *ppos)
+ count = IMGSIZE - *ppos;
+
+ if (copy_to_user (buffer, dev->bulk_in_buffer + *ppos, count)) {
+ result = -EFAULT;
+ } else {
+ result = count;
+ *ppos += count;
+ }
+
+ // unlock the device
+ up(&dev->sem);
+ return result;
+}
+
+static int idmouse_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_idmouse *dev = NULL;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ size_t buffer_size;
+ int result;
+
+ /* check if we have gotten the data or the hid interface */
+ iface_desc = &interface->altsetting[0];
+ if (iface_desc->desc.bInterfaceClass != 0x0A)
+ return -ENODEV;
+
+ /* allocate memory for our device state and initialize it */
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL)
+ return -ENOMEM;
+ memset(dev, 0x00, sizeof(*dev));
+
+ init_MUTEX(&dev->sem);
+ dev->udev = udev;
+ dev->interface = interface;
+
+ /* set up the endpoint information - use only the first bulk-in endpoint */
+ endpoint = &iface_desc->endpoint[0].desc;
+ if (!dev->bulk_in_endpointAddr
+ && (endpoint->bEndpointAddress & USB_DIR_IN)
+ && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+ USB_ENDPOINT_XFER_BULK)) {
+
+ /* we found a bulk in endpoint */
+ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+ dev->bulk_in_size = buffer_size;
+ dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+ dev->bulk_in_buffer =
+ kmalloc(IMGSIZE + buffer_size, GFP_KERNEL);
+
+ if (!dev->bulk_in_buffer) {
+ err("Unable to allocate input buffer.");
+ idmouse_delete(dev);
+ return -ENOMEM;
+ }
+ }
+
+ if (!(dev->bulk_in_endpointAddr)) {
+ err("Unable to find bulk-in endpoint.");
+ idmouse_delete(dev);
+ return -ENODEV;
+ }
+ /* allow device read, write and ioctl */
+ dev->present = 1;
+
+ /* we can register the device now, as it is ready */
+ usb_set_intfdata(interface, dev);
+ result = usb_register_dev(interface, &idmouse_class);
+ if (result) {
+ /* something prevented us from registering this device */
+ err("Unble to allocate minor number.");
+ usb_set_intfdata(interface, NULL);
+ idmouse_delete(dev);
+ return result;
+ }
+
+ /* be noisy */
+ dev_info(&interface->dev,"%s now attached\n",DRIVER_DESC);
+
+ return 0;
+}
+
+static void idmouse_disconnect(struct usb_interface *interface)
+{
+ struct usb_idmouse *dev;
+
+ /* prevent races with open() */
+ down(&disconnect_sem);
+
+ /* get device structure */
+ dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ /* lock it */
+ down(&dev->sem);
+
+ /* give back our minor */
+ usb_deregister_dev(interface, &idmouse_class);
+
+ /* prevent device read, write and ioctl */
+ dev->present = 0;
+
+ /* unlock */
+ up(&dev->sem);
+
+ /* if the device is opened, idmouse_release will clean this up */
+ if (!dev->open)
+ idmouse_delete(dev);
+
+ up(&disconnect_sem);
+
+ info("%s disconnected", DRIVER_DESC);
+}
+
+static int __init usb_idmouse_init(void)
+{
+ int result;
+
+ info(DRIVER_DESC " " DRIVER_VERSION);
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&idmouse_driver);
+ if (result)
+ err("Unable to register device (error %d).", result);
+
+ return result;
+}
+
+static void __exit usb_idmouse_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&idmouse_driver);
+}
+
+module_init(usb_idmouse_init);
+module_exit(usb_idmouse_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+