This patch adds the cyberjack driver.
diff -Nru a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/drivers/usb/serial/cyberjack.c Thu Jan 3 21:41:54 2002
@@ -0,0 +1,522 @@
+/*
+ * REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver
+ *
+ * Copyright (C) 2001 REINER SCT
+ * Author: Matthias Bruestle
+ *
+ * Contact: [EMAIL PROTECTED] (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 ([EMAIL PROTECTED]) for his help and
+ * patience.
+ *
+ * In case of problems, please write to the contact e-mail address
+ * mentioned above.
+ */
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/poll.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/fcntl.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+
+#ifdef CONFIG_USB_SERIAL_DEBUG
+ static int debug = 1;
+#else
+ static int debug;
+#endif
+
+#include "usb-serial.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.0"
+#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, int from_user,
+ const unsigned char *buf, int count);
+static void cyberjack_read_int_callback( struct urb *urb );
+static void cyberjack_read_bulk_callback (struct urb *urb);
+static void cyberjack_write_bulk_callback (struct urb *urb);
+
+
+static u16 cyberjack_vendor_id = CYBERJACK_VENDOR_ID;
+static u16 cyberjack_product_id = CYBERJACK_PRODUCT_ID;
+
+static struct usb_serial_device_type cyberjack_device = {
+ name: "Reiner SCT Cyberjack USB card reader",
+ idVendor: &cyberjack_vendor_id,
+ idProduct: &cyberjack_product_id,
+ needs_interrupt_in: MUST_HAVE,
+ needs_bulk_in: MUST_HAVE,
+ needs_bulk_out: MUST_HAVE,
+ num_interrupt_in: 1,
+ num_bulk_in: 1,
+ num_bulk_out: 1,
+ num_ports: 1,
+ startup: cyberjack_startup,
+ shutdown: cyberjack_shutdown,
+ open: cyberjack_open,
+ close: cyberjack_close,
+ write: cyberjack_write,
+ read_int_callback: cyberjack_read_int_callback,
+ read_bulk_callback: cyberjack_read_bulk_callback,
+ write_bulk_callback: cyberjack_write_bulk_callback,
+};
+
+struct cyberjack_private {
+ 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 akready sent */
+};
+
+/* do some startup allocations not currently performed by usb_serial_probe() */
+static int cyberjack_startup (struct usb_serial *serial)
+{
+ struct cyberjack_private *priv;
+
+ dbg (__FUNCTION__);
+
+ /* allocate the private data structure */
+ serial->port->private = kmalloc(sizeof(struct cyberjack_private), GFP_KERNEL);
+ if (!serial->port->private)
+ return (-1); /* error */
+
+ /* set initial values */
+ priv = (struct cyberjack_private *)serial->port->private;
+ priv->rdtodo = 0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
+
+ init_waitqueue_head(&serial->port->write_wait);
+
+ return( 0 );
+}
+
+static void cyberjack_shutdown (struct usb_serial *serial)
+{
+ int i;
+
+ dbg (__FUNCTION__);
+
+ /* stop reads and writes on all ports */
+ for (i=0; i < serial->num_ports; ++i) {
+ while (serial->port[i].open_count > 0) {
+ cyberjack_close (&serial->port[i], NULL);
+ }
+ /* My special items, the standard routines free my urbs */
+ if (serial->port[i].private)
+ kfree(serial->port[i].private);
+ }
+}
+
+static int cyberjack_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct cyberjack_private *priv;
+ int result = 0;
+
+ if (port_paranoia_check (port, __FUNCTION__))
+ return -ENODEV;
+
+ MOD_INC_USE_COUNT;
+
+ dbg(__FUNCTION__ " - port %d", port->number);
+
+ down (&port->sem);
+
+ ++port->open_count;
+
+ if (!port->active) {
+ port->active = 1;
+ /* 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 = (struct cyberjack_private *)port->private;
+ priv->rdtodo = 0;
+ priv->wrfilled = 0;
+ priv->wrsent = 0;
+
+ /* shutdown any bulk reads that might be going on */
+ usb_unlink_urb (port->write_urb);
+ usb_unlink_urb (port->read_urb);
+ usb_unlink_urb (port->interrupt_in_urb);
+
+ port->interrupt_in_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->interrupt_in_urb);
+ if (result)
+ err(" usb_submit_urb(read int) failed");
+ dbg(__FUNCTION__ " - usb_submit_urb(int urb)");
+ }
+
+ up (&port->sem);
+
+ return result;
+}
+
+static void cyberjack_close (struct usb_serial_port *port, struct file *filp)
+{
+ dbg(__FUNCTION__ " - port %d", port->number);
+
+ down (&port->sem);
+
+ --port->open_count;
+
+ if (port->open_count <= 0) {
+ if (port->serial->dev) {
+ /* shutdown any bulk reads that might be going on */
+ usb_unlink_urb (port->write_urb);
+ usb_unlink_urb (port->read_urb);
+ usb_unlink_urb (port->interrupt_in_urb);
+ }
+
+ port->active = 0;
+ port->open_count = 0;
+ }
+
+ up (&port->sem);
+ MOD_DEC_USE_COUNT;
+}
+
+static int cyberjack_write (struct usb_serial_port *port, int from_user, const
+unsigned char *buf, int count)
+{
+ struct usb_serial *serial = port->serial;
+ struct cyberjack_private *priv = (struct cyberjack_private *)port->private;
+ int result;
+ int wrexpected;
+
+ dbg(__FUNCTION__ " - port %d", port->number);
+ dbg(__FUNCTION__ " - from_user %d", from_user);
+
+ if (count == 0) {
+ dbg(__FUNCTION__ " - write request of 0 bytes");
+ return (0);
+ }
+
+ if (port->write_urb->status == -EINPROGRESS) {
+ dbg (__FUNCTION__ " - already writing");
+ return (0);
+ }
+
+ down (&port->sem);
+
+ if( (count+priv->wrfilled)>sizeof(priv->wrbuf) ) {
+ /* To much data for buffer. Reset buffer. */
+ priv->wrfilled=0;
+ return (0);
+ }
+
+ /* Copy data */
+ if (from_user) {
+ if (copy_from_user(priv->wrbuf+priv->wrfilled, buf, count))
+ return -EFAULT;
+ } else {
+ memcpy (priv->wrbuf+priv->wrfilled, buf, count);
+ }
+ usb_serial_debug_data (__FILE__, __FUNCTION__, count,
+ priv->wrbuf+priv->wrfilled);
+ priv->wrfilled += count;
+
+ if( priv->wrfilled >= 3 ) {
+ wrexpected = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
+ dbg(__FUNCTION__ " - expected data: %d", wrexpected);
+ } else {
+ wrexpected = sizeof(priv->wrbuf);
+ }
+
+ if( priv->wrfilled >= wrexpected ) {
+ /* We have enough data to begin transmission */
+ int length;
+
+ dbg(__FUNCTION__ " - transmitting data (frame 1)");
+ 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 */
+ 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);
+ if (result) {
+ err(__FUNCTION__ " - failed submitting write urb, error %d",
+result);
+ /* Throw away data. No better idea what to do with it. */
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ up (&port->sem);
+ return 0;
+ }
+
+ dbg(__FUNCTION__ " - priv->wrsent=%d",priv->wrsent);
+ dbg(__FUNCTION__ " - priv->wrfilled=%d",priv->wrfilled);
+
+ if( priv->wrsent>=priv->wrfilled ) {
+ dbg(__FUNCTION__ " - buffer cleaned");
+ memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ }
+ }
+
+ up (&port->sem);
+ return (count);
+}
+
+static void cyberjack_read_int_callback( struct urb *urb )
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = (struct cyberjack_private *)port->private;
+ struct usb_serial *serial;
+ unsigned char *data = urb->transfer_buffer;
+
+ if (port_paranoia_check (port, __FUNCTION__)) return;
+
+ dbg(__FUNCTION__ " - port %d", port->number);
+
+ /* the urb might have been killed. */
+ if (urb->status)
+ return;
+
+ serial = port->serial;
+ if (serial_paranoia_check (serial, __FUNCTION__)) return;
+
+ usb_serial_debug_data (__FILE__, __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 = priv->rdtodo;
+ int result;
+
+ /* This is a announcement of comming bulk_ins. */
+ unsigned short size = ((unsigned short)data[3]<<8)+data[2]+3;
+
+ if( (size>259) || (size==0) ) {
+ dbg( "Bad announced bulk_in data length: %d", size );
+ /* Dunno what is most reliable to do here. */
+ /* return; */
+ }
+
+ if( (old_rdtodo+size)<(old_rdtodo) ) {
+ dbg( "To many bulk_in urbs to do." );
+ return;
+ }
+
+ /* "+=" is probably more fault tollerant than "=" */
+ priv->rdtodo += size;
+
+ dbg(__FUNCTION__ " - rdtodo: %d", priv->rdtodo);
+
+ if( !old_rdtodo ) {
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb);
+ if( result )
+ err(__FUNCTION__ " - failed resubmitting read urb,
+error %d", result);
+ dbg(__FUNCTION__ " - usb_submit_urb(read urb)");
+ }
+ }
+}
+
+static void cyberjack_read_bulk_callback (struct urb *urb)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = (struct cyberjack_private *)port->private;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ int i;
+ int result;
+
+ dbg(__FUNCTION__ " - port %d", port->number);
+
+ if (!serial) {
+ dbg(__FUNCTION__ " - bad serial pointer, exiting");
+ return;
+ }
+
+ if (urb->status) {
+ usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length,
+urb->transfer_buffer);
+ dbg(__FUNCTION__ " - nonzero read bulk status received: %d",
+urb->status);
+ return;
+ }
+
+ usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
+
+ tty = port->tty;
+ 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);
+ }
+
+ /* Reduce urbs to do by one. */
+ priv->rdtodo-=urb->actual_length;
+ /* Just to be sure */
+ if( priv->rdtodo<0 ) priv->rdtodo=0;
+
+ dbg(__FUNCTION__ " - rdtodo: %d", priv->rdtodo);
+
+ /* Continue to read if we have still urbs to do. */
+ if( priv->rdtodo /* || (urb->actual_length==port->bulk_in_endpointAddress)*/ )
+{
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb);
+ if (result)
+ err(__FUNCTION__ " - failed resubmitting read urb, error %d",
+result);
+ dbg(__FUNCTION__ " - usb_submit_urb(read urb)");
+ }
+}
+
+static void cyberjack_write_bulk_callback (struct urb *urb)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct cyberjack_private *priv = (struct cyberjack_private *)port->private;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ dbg(__FUNCTION__ " - port %d", port->number);
+
+ if (!serial) {
+ dbg(__FUNCTION__ " - bad serial pointer, exiting");
+ return;
+ }
+
+ if (urb->status) {
+ dbg(__FUNCTION__ " - nonzero write bulk status received: %d",
+urb->status);
+ return;
+ }
+
+ /* only do something if we have more data to send */
+ if( priv->wrfilled ) {
+ int length, blksize, result;
+
+ if (port->write_urb->status == -EINPROGRESS) {
+ dbg (__FUNCTION__ " - already writing");
+ return;
+ }
+
+ down (&port->sem);
+
+ dbg(__FUNCTION__ " - transmitting data (frame n)");
+
+ 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 */
+ 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);
+ if (result) {
+ err(__FUNCTION__ " - failed submitting write urb, error %d",
+result);
+ /* Throw away data. No better idea what to do with it. */
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ up (&port->sem);
+ queue_task(&port->tqueue, &tq_immediate);
+ mark_bh(IMMEDIATE_BH);
+ return;
+ }
+
+ dbg(__FUNCTION__ " - priv->wrsent=%d",priv->wrsent);
+ dbg(__FUNCTION__ " - priv->wrfilled=%d",priv->wrfilled);
+
+ blksize = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
+
+ if( (priv->wrsent>=priv->wrfilled) || (priv->wrsent>=blksize) ) {
+ dbg(__FUNCTION__ " - buffer cleaned");
+ memset( priv->wrbuf, 0, sizeof(priv->wrbuf) );
+ priv->wrfilled=0;
+ priv->wrsent=0;
+ }
+
+ up (&port->sem);
+ queue_task(&port->tqueue, &tq_immediate);
+ mark_bh(IMMEDIATE_BH);
+ return;
+ }
+
+ queue_task(&port->tqueue, &tq_immediate);
+ mark_bh(IMMEDIATE_BH);
+
+ return;
+}
+
+static int __init cyberjack_init (void)
+{
+ usb_serial_register (&cyberjack_device);
+
+ info(DRIVER_VERSION " " DRIVER_AUTHOR);
+ info(DRIVER_DESC);
+
+ return 0;
+}
+
+static void __exit cyberjack_exit (void)
+{
+ usb_serial_deregister (&cyberjack_device);
+}
+
+module_init(cyberjack_init);
+module_exit(cyberjack_exit);
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_LICENSE("GPL");
+
+MODULE_PARM(debug, "i");
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+
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