// SPDX-License-Identifier: GPL-2.0+ /* * IPWireless 3G UMTS TDD Modem driver (USB connected) * * Copyright (C) 2004 Roelf Diedericks <[email protected]> * Copyright (C) 2004 Greg Kroah-Hartman <[email protected]> * * All information about the device was acquired using SnoopyPro * on MSFT's O/S, and examing the MSFT drivers' debug output * (insanely left _on_ in the enduser version) * * It was written out of frustration with the IPWireless USB modem * supplied by Axity3G/Sentech South Africa not supporting * Linux whatsoever. * * Nobody provided any proprietary information that was not already * available for this device. * * The modem adheres to the "3GPP TS 27.007 AT command set for 3G * User Equipment (UE)" standard, available from * http://www.3gpp.org/ftp/Specs/html-info/27007.htm * * The code was only tested the IPWireless handheld modem distributed * in South Africa by Sentech. * * It may work for Woosh Inc in .nz too, as it appears they use the * same kit. * * There is still some work to be done in terms of handling * DCD, DTR, RTS, CTS which are currently faked. * It's good enough for PPP at this point. It's based off all kinds of * code found in usb/serial and usb/class */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/spinlock.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/uaccess.h> #include "usb-wwan.h" #define DRIVER_AUTHOR … #define DRIVER_DESC … #define IPW_TTY_MAJOR … #define IPW_TTY_MINORS … #define USB_IPW_MAGIC … /* Message sizes */ #define EVENT_BUFFER_SIZE … #define CHAR2INT16(c1, c0) … /* vendor/product pairs that are known work with this driver*/ #define IPW_VID … #define IPW_PID … /* Vendor commands: */ /* baud rates */ enum { … }; /* data bits */ #define ipw_dtb_7 … #define ipw_dtb_8 … /* I mean, is there a point to any other setting these days? :) */ /* usb control request types : */ #define IPW_SIO_RXCTL … #define IPW_SIO_SET_BAUD … #define IPW_SIO_SET_LINE … #define IPW_SIO_SET_PIN … #define IPW_SIO_POLL … #define IPW_SIO_INIT … #define IPW_SIO_PURGE … #define IPW_SIO_HANDFLOW … #define IPW_SIO_SETCHARS … /* last 2 bytes contain flowcontrol chars e.g. 00 00 00 00 11 13 */ /* values used for request IPW_SIO_SET_PIN */ #define IPW_PIN_SETDTR … #define IPW_PIN_SETRTS … #define IPW_PIN_CLRDTR … #define IPW_PIN_CLRRTS … /* values used for request IPW_SIO_RXCTL */ #define IPW_RXBULK_ON … #define IPW_RXBULK_OFF … /* various 16 byte hardcoded transferbuffers used by flow control */ #define IPW_BYTES_FLOWINIT … /* Interpretation of modem status lines */ /* These need sorting out by individually connecting pins and checking * results. FIXME! * When data is being sent we see 0x30 in the lower byte; this must * contain DSR and CTS ... */ #define IPW_DSR … #define IPW_CTS … #define IPW_WANTS_TO_SEND … static const struct usb_device_id id_table[] = …; MODULE_DEVICE_TABLE(usb, id_table); static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) { … } static int ipw_attach(struct usb_serial *serial) { … } static void ipw_release(struct usb_serial *serial) { … } static void ipw_dtr_rts(struct usb_serial_port *port, int on) { … } static void ipw_close(struct usb_serial_port *port) { … } static struct usb_serial_driver ipw_device = …; static struct usb_serial_driver * const serial_drivers[] = …; module_usb_serial_driver(…); /* Module information */ MODULE_AUTHOR(…); MODULE_DESCRIPTION(…); MODULE_LICENSE(…) …;
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