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|
/*
* KOBIL USB Smart Card Terminal Driver
*
* Copyright (C) 2002 KOBIL Systems GmbH
* Author: Thomas Wahrenbruch
*
* Contact: linuxusb@kobil.de
*
* 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.
*
* Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
* (Adapter K), B1 Professional and KAAN Professional (Adapter B)
*/
#include <linux/kernel.h>
#include <linux/errno.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 <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/ioctl.h>
#include "kobil_sct.h"
#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
#define KOBIL_VENDOR_ID 0x0D46
#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
#define KOBIL_USBTWIN_PRODUCT_ID 0x0078
#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
#define KOBIL_TIMEOUT 500
#define KOBIL_BUF_LENGTH 300
/* Function prototypes */
static int kobil_port_probe(struct usb_serial_port *probe);
static int kobil_port_remove(struct usb_serial_port *probe);
static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
static void kobil_close(struct usb_serial_port *port);
static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int kobil_write_room(struct tty_struct *tty);
static int kobil_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg);
static int kobil_tiocmget(struct tty_struct *tty);
static int kobil_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear);
static void kobil_read_int_callback(struct urb *urb);
static void kobil_write_int_callback(struct urb *urb);
static void kobil_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static void kobil_init_termios(struct tty_struct *tty);
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
static struct usb_serial_driver kobil_device = {
.driver = {
.owner = THIS_MODULE,
.name = "kobil",
},
.description = "KOBIL USB smart card terminal",
.id_table = id_table,
.num_ports = 1,
.port_probe = kobil_port_probe,
.port_remove = kobil_port_remove,
.ioctl = kobil_ioctl,
.set_termios = kobil_set_termios,
.init_termios = kobil_init_termios,
.tiocmget = kobil_tiocmget,
.tiocmset = kobil_tiocmset,
.open = kobil_open,
.close = kobil_close,
.write = kobil_write,
.write_room = kobil_write_room,
.read_int_callback = kobil_read_int_callback,
.write_int_callback = kobil_write_int_callback,
};
static struct usb_serial_driver * const serial_drivers[] = {
&kobil_device, NULL
};
struct kobil_private {
unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
int filled; /* index of the last char in buf */
int cur_pos; /* index of the next char to send in buf */
__u16 device_type;
};
static int kobil_port_probe(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct kobil_private *priv;
priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->filled = 0;
priv->cur_pos = 0;
priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
switch (priv->device_type) {
case KOBIL_ADAPTER_B_PRODUCT_ID:
dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
break;
case KOBIL_ADAPTER_K_PRODUCT_ID:
dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
break;
case KOBIL_USBTWIN_PRODUCT_ID:
dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
break;
case KOBIL_KAAN_SIM_PRODUCT_ID:
dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
break;
}
usb_set_serial_port_data(port, priv);
return 0;
}
static int kobil_port_remove(struct usb_serial_port *port)
{
struct kobil_private *priv;
priv = usb_get_serial_port_data(port);
kfree(priv);
return 0;
}
static void kobil_init_termios(struct tty_struct *tty)
{
/* Default to echo off and other sane device settings */
tty->termios.c_lflag = 0;
tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF;
/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
tty->termios.c_oflag &= ~ONLCR;
}
static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct device *dev = &port->dev;
int result = 0;
struct kobil_private *priv;
unsigned char *transfer_buffer;
int transfer_buffer_length = 8;
priv = usb_get_serial_port_data(port);
/* allocate memory for transfer buffer */
transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
if (!transfer_buffer)
return -ENOMEM;
/* get hardware version */
result = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
SUSBCRequest_GetMisc,
USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
SUSBCR_MSC_GetHWVersion,
0,
transfer_buffer,
transfer_buffer_length,
KOBIL_TIMEOUT
);
dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0],
transfer_buffer[1], transfer_buffer[2]);
/* get firmware version */
result = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
SUSBCRequest_GetMisc,
USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
SUSBCR_MSC_GetFWVersion,
0,
transfer_buffer,
transfer_buffer_length,
KOBIL_TIMEOUT
);
dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
transfer_buffer[1], transfer_buffer[2]);
if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
/* Setting Baudrate, Parity and Stopbits */
result = usb_control_msg(port->serial->dev,
usb_sndctrlpipe(port->serial->dev, 0),
SUSBCRequest_SetBaudRateParityAndS
|