// SPDX-License-Identifier: GPL-2.0 /* * usb-serial driver for Quatech USB 2 devices * * Copyright (C) 2012 Bill Pemberton ([email protected]) * * These devices all have only 1 bulk in and 1 bulk out that is shared * for all serial ports. * */ #include <asm/unaligned.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/serial.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/serial_reg.h> #include <linux/uaccess.h> /* default urb timeout for usb operations */ #define QT2_USB_TIMEOUT … #define QT_OPEN_CLOSE_CHANNEL … #define QT_SET_GET_DEVICE … #define QT_SET_GET_REGISTER … #define QT_GET_SET_PREBUF_TRIG_LVL … #define QT_SET_ATF … #define QT_TRANSFER_IN … #define QT_HW_FLOW_CONTROL_MASK … #define QT_SW_FLOW_CONTROL_MASK … #define QT2_BREAK_CONTROL … #define QT2_GET_SET_UART … #define QT2_FLUSH_DEVICE … #define QT2_GET_SET_QMCR … #define QT2_QMCR_RS232 … #define QT2_QMCR_RS422 … #define SERIAL_CRTSCTS … #define SERIAL_EVEN_PARITY … /* status bytes for the device */ #define QT2_CONTROL_BYTE … #define QT2_LINE_STATUS … #define QT2_MODEM_STATUS … #define QT2_XMIT_HOLD … #define QT2_CHANGE_PORT … #define QT2_REC_FLUSH … #define QT2_XMIT_FLUSH … #define QT2_CONTROL_ESCAPE … #define MAX_BAUD_RATE … #define DEFAULT_BAUD_RATE … #define QT2_READ_BUFFER_SIZE … #define QT2_WRITE_BUFFER_SIZE … #define QT2_WRITE_CONTROL_SIZE … #define DRIVER_DESC … #define USB_VENDOR_ID_QUATECH … #define QUATECH_SSU2_100 … #define QUATECH_DSU2_100 … #define QUATECH_DSU2_400 … #define QUATECH_QSU2_100 … #define QUATECH_QSU2_400 … #define QUATECH_ESU2_100 … #define QUATECH_ESU2_400 … struct qt2_device_detail { … }; #define QT_DETAILS(prod, ports) … static const struct qt2_device_detail qt2_device_details[] = …; static const struct usb_device_id id_table[] = …; MODULE_DEVICE_TABLE(usb, id_table); struct qt2_serial_private { … }; struct qt2_port_private { … }; static void qt2_update_lsr(struct usb_serial_port *port, unsigned char *ch); static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch); static void qt2_write_bulk_callback(struct urb *urb); static void qt2_read_bulk_callback(struct urb *urb); static void qt2_release(struct usb_serial *serial) { … } static inline int calc_baud_divisor(int baudrate) { … } static inline int qt2_set_port_config(struct usb_device *dev, unsigned char port_number, u16 baudrate, u16 lcr) { … } static inline int qt2_control_msg(struct usb_device *dev, u8 request, u16 data, u16 index) { … } static inline int qt2_getregister(struct usb_device *dev, u8 uart, u8 reg, u8 *data) { … } static inline int qt2_setregister(struct usb_device *dev, u8 uart, u8 reg, u16 data) { … } static inline int update_mctrl(struct qt2_port_private *port_priv, unsigned int set, unsigned int clear) { … } static int qt2_calc_num_ports(struct usb_serial *serial, struct usb_serial_endpoints *epds) { … } static void qt2_set_termios(struct tty_struct *tty, struct usb_serial_port *port, const struct ktermios *old_termios) { … } static int qt2_open(struct tty_struct *tty, struct usb_serial_port *port) { … } static void qt2_close(struct usb_serial_port *port) { … } static void qt2_disconnect(struct usb_serial *serial) { … } static void qt2_process_status(struct usb_serial_port *port, unsigned char *ch) { … } static void qt2_process_read_urb(struct urb *urb) { … } static void qt2_write_bulk_callback(struct urb *urb) { … } static void qt2_read_bulk_callback(struct urb *urb) { … } static int qt2_setup_urbs(struct usb_serial *serial) { … } static int qt2_attach(struct usb_serial *serial) { … } static int qt2_port_probe(struct usb_serial_port *port) { … } static void qt2_port_remove(struct usb_serial_port *port) { … } static int qt2_tiocmget(struct tty_struct *tty) { … } static int qt2_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { … } static int qt2_break_ctl(struct tty_struct *tty, int break_state) { … } static void qt2_dtr_rts(struct usb_serial_port *port, int on) { … } static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch) { … } static void qt2_update_lsr(struct usb_serial_port *port, unsigned char *ch) { … } static unsigned int qt2_write_room(struct tty_struct *tty) { … } static int qt2_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { … } static struct usb_serial_driver qt2_device = …; static struct usb_serial_driver *const serial_drivers[] = …; module_usb_serial_driver(…); MODULE_DESCRIPTION(…); MODULE_LICENSE(…) …;
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