From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/usb/serial/kobil_sct.c | 573 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 573 insertions(+) create mode 100644 drivers/usb/serial/kobil_sct.c (limited to 'drivers/usb/serial/kobil_sct.c') diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c new file mode 100644 index 000000000..5e775f68f --- /dev/null +++ b/drivers/usb/serial/kobil_sct.c @@ -0,0 +1,573 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * 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. + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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 void 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 unsigned 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, + const 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, + .num_interrupt_out = 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 void kobil_port_remove(struct usb_serial_port *port) +{ + struct kobil_private *priv; + + priv = usb_get_serial_port_data(port); + kfree(priv); +} + +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); + if (result >= 3) { + 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); + if (result >= 3) { + 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_SetBaudRateParityAndStopBits, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | + SUSBCR_SPASB_1StopBit, + 0, + NULL, + 0, + KOBIL_TIMEOUT + ); + dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result); + + /* reset all queues */ + result = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + SUSBCRequest_Misc, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + SUSBCR_MSC_ResetAllQueues, + 0, + NULL, + 0, + KOBIL_TIMEOUT + ); + dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result); + } + if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || + priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || + priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { + /* start reading (Adapter B 'cause PNP string) */ + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); + dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result); + } + + kfree(transfer_buffer); + return 0; +} + + +static void kobil_close(struct usb_serial_port *port) +{ + /* FIXME: Add rts/dtr methods */ + usb_kill_urb(port->interrupt_out_urb); + usb_kill_urb(port->interrupt_in_urb); +} + + +static void kobil_read_int_callback(struct urb *urb) +{ + int result; + struct usb_serial_port *port = urb->context; + unsigned char *data = urb->transfer_buffer; + int status = urb->status; + + if (status) { + dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status); + return; + } + + if (urb->actual_length) { + usb_serial_debug_data(&port->dev, __func__, urb->actual_length, + data); + tty_insert_flip_string(&port->port, data, urb->actual_length); + tty_flip_buffer_push(&port->port); + } + + result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); + dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result); +} + + +static void kobil_write_int_callback(struct urb *urb) +{ +} + + +static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count) +{ + int length = 0; + int result = 0; + int todo = 0; + struct kobil_private *priv; + + if (count == 0) { + dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); + return 0; + } + + priv = usb_get_serial_port_data(port); + + if (count > (KOBIL_BUF_LENGTH - priv->filled)) { + dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__); + return -ENOMEM; + } + + /* Copy data to buffer */ + memcpy(priv->buf + priv->filled, buf, count); + usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled); + priv->filled = priv->filled + count; + + /* only send complete block. TWIN, KAAN SIM and adapter K + use the same protocol. */ + if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || + ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) { + /* stop reading (except TWIN and KAAN SIM) */ + if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) + || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID)) + usb_kill_urb(port->interrupt_in_urb); + + todo = priv->filled - priv->cur_pos; + + while (todo > 0) { + /* max 8 byte in one urb (endpoint size) */ + length = min(todo, port->interrupt_out_size); + /* copy data to transfer buffer */ + memcpy(port->interrupt_out_buffer, + priv->buf + priv->cur_pos, length); + port->interrupt_out_urb->transfer_buffer_length = length; + + priv->cur_pos = priv->cur_pos + length; + result = usb_submit_urb(port->interrupt_out_urb, + GFP_ATOMIC); + dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result); + todo = priv->filled - priv->cur_pos; + + if (todo > 0) + msleep(24); + } + + priv->filled = 0; + priv->cur_pos = 0; + + /* start reading (except TWIN and KAAN SIM) */ + if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || + priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { + result = usb_submit_urb(port->interrupt_in_urb, + GFP_ATOMIC); + dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result); + } + } + return count; +} + + +static unsigned int kobil_write_room(struct tty_struct *tty) +{ + /* FIXME */ + return 8; +} + + +static int kobil_tiocmget(struct tty_struct *tty) +{ + struct usb_serial_port *port = tty->driver_data; + struct kobil_private *priv; + int result; + unsigned char *transfer_buffer; + int transfer_buffer_length = 8; + + priv = usb_get_serial_port_data(port); + if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID + || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { + /* This device doesn't support ioctl calls */ + return -EINVAL; + } + + /* allocate memory for transfer buffer */ + transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); + if (!transfer_buffer) + return -ENOMEM; + + result = usb_control_msg(port->serial->dev, + usb_rcvctrlpipe(port->serial->dev, 0), + SUSBCRequest_GetStatusLineState, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN, + 0, + 0, + transfer_buffer, + transfer_buffer_length, + KOBIL_TIMEOUT); + + dev_dbg(&port->dev, "Send get_status_line_state URB returns: %i\n", + result); + if (result < 1) { + if (result >= 0) + result = -EIO; + goto out_free; + } + + dev_dbg(&port->dev, "Statusline: %02x\n", transfer_buffer[0]); + + result = 0; + if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) + result = TIOCM_DSR; +out_free: + kfree(transfer_buffer); + return result; +} + +static int kobil_tiocmset(struct tty_struct *tty, + unsigned int set, unsigned int clear) +{ + struct usb_serial_port *port = tty->driver_data; + struct device *dev = &port->dev; + struct kobil_private *priv; + int result; + int dtr = 0; + int rts = 0; + + /* FIXME: locking ? */ + priv = usb_get_serial_port_data(port); + if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID + || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { + /* This device doesn't support ioctl calls */ + return -EINVAL; + } + + if (set & TIOCM_RTS) + rts = 1; + if (set & TIOCM_DTR) + dtr = 1; + if (clear & TIOCM_RTS) + rts = 0; + if (clear & TIOCM_DTR) + dtr = 0; + + if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) { + if (dtr != 0) + dev_dbg(dev, "%s - Setting DTR\n", __func__); + else + dev_dbg(dev, "%s - Clearing DTR\n", __func__); + result = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + SUSBCRequest_SetStatusLinesOrQueues, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR), + 0, + NULL, + 0, + KOBIL_TIMEOUT); + } else { + if (rts != 0) + dev_dbg(dev, "%s - Setting RTS\n", __func__); + else + dev_dbg(dev, "%s - Clearing RTS\n", __func__); + result = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + SUSBCRequest_SetStatusLinesOrQueues, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS), + 0, + NULL, + 0, + KOBIL_TIMEOUT); + } + dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result); + return (result < 0) ? result : 0; +} + +static void kobil_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, + const struct ktermios *old) +{ + struct kobil_private *priv; + int result; + unsigned short urb_val = 0; + int c_cflag = tty->termios.c_cflag; + speed_t speed; + + priv = usb_get_serial_port_data(port); + if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || + priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) { + /* This device doesn't support ioctl calls */ + tty_termios_copy_hw(&tty->termios, old); + return; + } + + speed = tty_get_baud_rate(tty); + switch (speed) { + case 1200: + urb_val = SUSBCR_SBR_1200; + break; + default: + speed = 9600; + fallthrough; + case 9600: + urb_val = SUSBCR_SBR_9600; + break; + } + urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : + SUSBCR_SPASB_1StopBit; + if (c_cflag & PARENB) { + if (c_cflag & PARODD) + urb_val |= SUSBCR_SPASB_OddParity; + else + urb_val |= SUSBCR_SPASB_EvenParity; + } else + urb_val |= SUSBCR_SPASB_NoParity; + tty->termios.c_cflag &= ~CMSPAR; + tty_encode_baud_rate(tty, speed, speed); + + result = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + SUSBCRequest_SetBaudRateParityAndStopBits, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + urb_val, + 0, + NULL, + 0, + KOBIL_TIMEOUT + ); + if (result) { + dev_err(&port->dev, "failed to update line settings: %d\n", + result); + } +} + +static int kobil_ioctl(struct tty_struct *tty, + unsigned int cmd, unsigned long arg) +{ + struct usb_serial_port *port = tty->driver_data; + struct kobil_private *priv = usb_get_serial_port_data(port); + int result; + + if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || + priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) + /* This device doesn't support ioctl calls */ + return -ENOIOCTLCMD; + + switch (cmd) { + case TCFLSH: + result = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + SUSBCRequest_Misc, + USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, + SUSBCR_MSC_ResetAllQueues, + 0, + NULL, + 0, + KOBIL_TIMEOUT + ); + + dev_dbg(&port->dev, + "%s - Send reset_all_queues (FLUSH) URB returns: %i\n", + __func__, result); + return (result < 0) ? -EIO: 0; + default: + return -ENOIOCTLCMD; + } +} + +module_usb_serial_driver(serial_drivers, id_table); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); -- cgit v1.2.3