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/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
new file mode 100644
index 0000000..46a204c
--- /dev/null
+++ b/drivers/usb/serial/cyberjack.c
@@ -0,0 +1,514 @@
+/*
+ * REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver
+ *
+ * Copyright (C) 2001 REINER SCT
+ * Author: Matthias Bruestle
+ *
+ * Contact: support@reiner-sct.com (see MAINTAINERS)
+ *
+ * This program is largely derived from work by the linux-usb group
+ * and associated source files. Please see the usb/serial files for
+ * individual credits and copyrights.
+ *
+ * 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.
+ *
+ * Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
+ * patience.
+ *
+ * In case of problems, please write to the contact e-mail address
+ * mentioned above.
+ *
+ * Please note that later models of the cyberjack reader family are
+ * supported by a libusb-based userspace device driver.
+ *
+ * Homepage: http://www.reiner-sct.de/support/treiber_cyberjack.php#linux
+ */
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+
+#define CYBERJACK_LOCAL_BUF_SIZE 32
+
+static int debug;
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.01"
+#define DRIVER_AUTHOR "Matthias Bruestle"
+#define DRIVER_DESC "REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver"
+
+
+#define CYBERJACK_VENDOR_ID 0x0C4B
+#define CYBERJACK_PRODUCT_ID 0x0100
+
+/* Function prototypes */
+static int cyberjack_startup (struct usb_serial *serial);
+static void cyberjack_shutdown (struct usb_serial *serial);
+static int cyberjack_open (struct usb_serial_port *port, struct file *filp);
+static void cyberjack_close (struct usb_serial_port *port, struct file *filp);
+static int cyberjack_write (struct usb_serial_port *port, const unsigned char *buf, int count);
+static int cyberjack_write_room( struct usb_serial_port *port );
+static void cyberjack_read_int_callback (struct urb *urb, struct pt_regs *regs);
+static void cyberjack_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
+static void cyberjack_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
+
+static struct usb_device_id id_table [] = {
+ { USB_DEVICE(CYBERJACK_VENDOR_ID, CYBERJACK_PRODUCT_ID) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table);
+
+static struct usb_driver cyberjack_driver = {
+ .owner = THIS_MODULE,
+ .name = "cyberjack",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+};
+
+static struct usb_serial_device_type cyberjack_device = {
+ .owner = THIS_MODULE,
+ .name = "Reiner SCT Cyberjack USB card reader",
+ .short_name = "cyberjack",
+ .id_table = id_table,
+ .num_interrupt_in = 1,
+ .num_bulk_in = 1,
+ .num_bulk_out = 1,
+ .num_ports = 1,
+ .attach = cyberjack_startup,
+ .shutdown = cyberjack_shutdown,
+ .open = cyberjack_open,
+ .close = cyberjack_close,
+ .write = cyberjack_write,
+ .write_room = cyberjack_write_room,
+ .read_int_callback = cyberjack_read_int_callback,
+ .read_bulk_callback = cyberjack_read_bulk_callback,
+ .write_bulk_callback = cyberjack_write_bulk_callback,
+};
+
+struct cyberjack_private {
+ spinlock_t lock; /* Lock for SMP */
+ short rdtodo; /* Bytes still to read */
+ unsigned char wrbuf[5*64]; /* Buffer for collecting data to write */
+ short wrfilled; /* Overall data size we already got */
+ short wrsent; /* Data already sent */
+};
+
+/* do some startup allocations not currently performed by usb_serial_probe() */
+static int cyberjack_startup (struct usb_serial *serial)
+{
+ struct cyberjack_private *priv;
+ int i;
+
+ dbg("%s", __FUNCTION__);
+
+ /* allocate the private data structure */
+ priv = kmalloc(sizeof(struct cyberjack_private), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ /* set initial values */
+ spin_lock_init(&priv->lock);
+ priv->rdtodo = 0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
+ usb_set_serial_port_data(serial->port[0], priv);
+
+ init_waitqueue_head(&serial->port[0]->write_wait);
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ int result;
+ serial->port[i]->interrupt_in_urb->dev = serial->dev;
+ result = usb_submit_urb(serial->port[i]->interrupt_in_urb,
+ GFP_KERNEL);
+ if (result)
+ err(" usb_submit_urb(read int) failed");
+ dbg("%s - usb_submit_urb(int urb)", __FUNCTION__);
+ }
+
+ return( 0 );
+}
+
+static void cyberjack_shutdown (struct usb_serial *serial)
+{
+ int i;
+
+ dbg("%s", __FUNCTION__);
+
+ for (i=0; i < serial->num_ports; ++i) {
+ usb_kill_urb(serial->port[i]->interrupt_in_urb);
+ /* My special items, the standard routines free my urbs */
+ kfree(usb_get_serial_port_data(serial->port[i]));
+ usb_set_serial_port_data(serial->port[i], NULL);
+ }
+}
+
+static int cyberjack_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct cyberjack_private *priv;
+ unsigned long flags;
+ int result = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ dbg("%s - usb_clear_halt", __FUNCTION__ );
+ usb_clear_halt(port->serial->dev, port->write_urb->pipe);
+
+ /* force low_latency on so that our tty_push actually forces
+ * the data through, otherwise it is scheduled, and with high
+ * data rates (like with OHCI) data can get lost.
+ */
+ port->tty->low_latency = 1;
+
+ priv = usb_get_serial_port_data(port);
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->rdtodo = 0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return result;
+}
+
+static void cyberjack_close (struct usb_serial_port *port, struct file *filp)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (port->serial->dev) {
+ /* shutdown any bulk reads that might be going on */
+ usb_kill_urb(port->write_urb);
+ usb_kill_urb(port->read_urb);
+ }
+}
+
+static int cyberjack_write (struct usb_serial_port *port, const unsigned char *buf, int count)
+{
+ struct usb_serial *serial = port->serial;
+ struct cyberjack_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ int result;
+ int wrexpected;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (count == 0) {
+ dbg("%s - write request of 0 bytes", __FUNCTION__);
+ return (0);
+ }
+
+ if (port->write_urb->status == -EINPROGRESS) {
+ dbg("%s - already writing", __FUNCTION__);
+ return (0);
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if( (count+priv->wrfilled)>sizeof(priv->wrbuf) ) {
+ /* To much data for buffer. Reset buffer. */
+ priv->wrfilled=0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return (0);
+ }
+
+ /* Copy data */
+ memcpy (priv->wrbuf+priv->wrfilled, buf, count);
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count,
+ priv->wrbuf+priv->wrfilled);
+ priv->wrfilled += count;
+
+ if( priv->wrfilled >= 3 ) {
+ wrexpected = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
+ dbg("%s - expected data: %d", __FUNCTION__, wrexpected);
+ } else {
+ wrexpected = sizeof(priv->wrbuf);
+ }
+
+ if( priv->wrfilled >= wrexpected ) {
+ /* We have enough data to begin transmission */
+ int length;
+
+ dbg("%s - transmitting data (frame 1)", __FUNCTION__);
+ length = (wrexpected > port->bulk_out_size) ? port->bulk_out_size : wrexpected;
+
+ memcpy (port->write_urb->transfer_buffer, priv->wrbuf, length );
+ priv->wrsent=length;
+
+ /* set up our urb */
+ usb_fill_bulk_urb(port->write_urb, serial->dev,
+ usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
+ port->write_urb->transfer_buffer, length,
+ ((serial->type->write_bulk_callback) ?
+ serial->type->write_bulk_callback :
+ cyberjack_write_bulk_callback),
+ port);
+
+ /* send the data out the bulk port */
+ result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ if (result) {
+ err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
+ /* Throw away data. No better idea what to do with it. */
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
+ }
+
+ dbg("%s - priv->wrsent=%d", __FUNCTION__,priv->wrsent);
+ dbg("%s - priv->wrfilled=%d", __FUNCTION__,priv->wrfilled);
+
+ if( priv->wrsent>=priv->wrfilled ) {
+ dbg("%s - buffer cleaned", __FUNCTION__);
+ memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ }
+ }
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return (count);
+}
+
+static int cyberjack_write_room( struct usb_serial_port *port )
+{
+ return CYBERJACK_LOCAL_BUF_SIZE;
+}
+
+static void cyberjack_read_int_callback( struct urb *urb, struct pt_regs *regs )
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = usb_get_serial_port_data(port);
+ unsigned char *data = urb->transfer_buffer;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* the urb might have been killed. */
+ if (urb->status)
+ return;
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+
+ /* React only to interrupts signaling a bulk_in transfer */
+ if( (urb->actual_length==4) && (data[0]==0x01) ) {
+ short old_rdtodo;
+ int result;
+
+ /* This is a announcement of coming bulk_ins. */
+ unsigned short size = ((unsigned short)data[3]<<8)+data[2]+3;
+
+ spin_lock(&priv->lock);
+
+ old_rdtodo = priv->rdtodo;
+
+ if( (old_rdtodo+size)<(old_rdtodo) ) {
+ dbg( "To many bulk_in urbs to do." );
+ spin_unlock(&priv->lock);
+ goto resubmit;
+ }
+
+ /* "+=" is probably more fault tollerant than "=" */
+ priv->rdtodo += size;
+
+ dbg("%s - rdtodo: %d", __FUNCTION__, priv->rdtodo);
+
+ spin_unlock(&priv->lock);
+
+ if( !old_rdtodo ) {
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ if( result )
+ err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
+ dbg("%s - usb_submit_urb(read urb)", __FUNCTION__);
+ }
+ }
+
+resubmit:
+ port->interrupt_in_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ if (result)
+ err(" usb_submit_urb(read int) failed");
+ dbg("%s - usb_submit_urb(int urb)", __FUNCTION__);
+}
+
+static void cyberjack_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = usb_get_serial_port_data(port);
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ short todo;
+ int i;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+ if (urb->status) {
+ dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
+ return;
+ }
+
+ tty = port->tty;
+ if (!tty) {
+ dbg("%s - ignoring since device not open\n", __FUNCTION__);
+ return;
+ }
+ if (urb->actual_length) {
+ for (i = 0; i < urb->actual_length ; ++i) {
+ /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
+ if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
+ tty_flip_buffer_push(tty);
+ }
+ /* this doesn't actually push the data through unless tty->low_latency is set */
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ tty_flip_buffer_push(tty);
+ }
+
+ spin_lock(&priv->lock);
+
+ /* Reduce urbs to do by one. */
+ priv->rdtodo-=urb->actual_length;
+ /* Just to be sure */
+ if ( priv->rdtodo<0 ) priv->rdtodo = 0;
+ todo = priv->rdtodo;
+
+ spin_unlock(&priv->lock);
+
+ dbg("%s - rdtodo: %d", __FUNCTION__, todo);
+
+ /* Continue to read if we have still urbs to do. */
+ if( todo /* || (urb->actual_length==port->bulk_in_endpointAddress)*/ ) {
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ if (result)
+ err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
+ dbg("%s - usb_submit_urb(read urb)", __FUNCTION__);
+ }
+}
+
+static void cyberjack_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = usb_get_serial_port_data(port);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (urb->status) {
+ dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
+ return;
+ }
+
+ spin_lock(&priv->lock);
+
+ /* only do something if we have more data to send */
+ if( priv->wrfilled ) {
+ int length, blksize, result;
+
+ if (port->write_urb->status == -EINPROGRESS) {
+ dbg("%s - already writing", __FUNCTION__);
+ spin_unlock(&priv->lock);
+ return;
+ }
+
+ dbg("%s - transmitting data (frame n)", __FUNCTION__);
+
+ length = ((priv->wrfilled - priv->wrsent) > port->bulk_out_size) ?
+ port->bulk_out_size : (priv->wrfilled - priv->wrsent);
+
+ memcpy (port->write_urb->transfer_buffer, priv->wrbuf + priv->wrsent,
+ length );
+ priv->wrsent+=length;
+
+ /* set up our urb */
+ usb_fill_bulk_urb(port->write_urb, port->serial->dev,
+ usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
+ port->write_urb->transfer_buffer, length,
+ ((port->serial->type->write_bulk_callback) ?
+ port->serial->type->write_bulk_callback :
+ cyberjack_write_bulk_callback),
+ port);
+
+ /* send the data out the bulk port */
+ result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ if (result) {
+ err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
+ /* Throw away data. No better idea what to do with it. */
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ goto exit;
+ }
+
+ dbg("%s - priv->wrsent=%d", __FUNCTION__,priv->wrsent);
+ dbg("%s - priv->wrfilled=%d", __FUNCTION__,priv->wrfilled);
+
+ blksize = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
+
+ if( (priv->wrsent>=priv->wrfilled) || (priv->wrsent>=blksize) ) {
+ dbg("%s - buffer cleaned", __FUNCTION__);
+ memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ }
+ }
+
+exit:
+ spin_unlock(&priv->lock);
+ schedule_work(&port->work);
+}
+
+static int __init cyberjack_init (void)
+{
+ int retval;
+ retval = usb_serial_register(&cyberjack_device);
+ if (retval)
+ goto failed_usb_serial_register;
+ retval = usb_register(&cyberjack_driver);
+ if (retval)
+ goto failed_usb_register;
+
+ info(DRIVER_VERSION " " DRIVER_AUTHOR);
+ info(DRIVER_DESC);
+
+ return 0;
+failed_usb_register:
+ usb_serial_deregister(&cyberjack_device);
+failed_usb_serial_register:
+ return retval;
+}
+
+static void __exit cyberjack_exit (void)
+{
+ usb_deregister (&cyberjack_driver);
+ usb_serial_deregister (&cyberjack_device);
+}
+
+module_init(cyberjack_init);
+module_exit(cyberjack_exit);
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_VERSION( DRIVER_VERSION );
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");