linux-imx

// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)

/*

 * nozomi.c  -- HSDPA driver Broadband Wireless Data Card - Globe Trotter

 *

 * Written by: Ulf Jakobsson,

 *             Jan Åkerfeldt,

 *             Stefan Thomasson,

 *

 * Maintained by: Paul Hardwick (p.hardwick@option.com)

 *

 * Patches:

 *          Locking code changes for Vodafone by Sphere Systems Ltd,

 *                              Andrew Bird (ajb@spheresystems.co.uk )

 *                              & Phil Sanderson

 *

 * Source has been ported from an implementation made by Filip Aben @ Option

 *

 * --------------------------------------------------------------------------

 *

 * Copyright (c) 2005,2006 Option Wireless Sweden AB

 * Copyright (c) 2006 Sphere Systems Ltd

 * Copyright (c) 2006 Option Wireless n/v

 * All rights Reserved.

 *

 * --------------------------------------------------------------------------

 */

​

/* Enable this to have a lot of debug printouts */

#define DEBUG

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/pci.h>

#include <linux/ioport.h>

#include <linux/tty.h>

#include <linux/tty_driver.h>

#include <linux/tty_flip.h>

#include <linux/sched.h>

#include <linux/serial.h>

#include <linux/interrupt.h>

#include <linux/kmod.h>

#include <linux/init.h>

#include <linux/kfifo.h>

#include <linux/uaccess.h>

#include <linux/slab.h>

#include <asm/byteorder.h>

​

#include <linux/delay.h>

​

​

#define VERSION_STRING DRIVER_DESC " 2.1d"

​

/* Default debug printout level */

#define NOZOMI_DEBUG_LEVEL 0x00

static int debug = NOZOMI_DEBUG_LEVEL;

module_param(debug, int, S_IRUGO | S_IWUSR);

​

/*    Macros definitions */

#define DBG_(lvl, fmt, args...)             \

do {                            \

    if (lvl & debug)                \

        pr_debug("[%d] %s(): " fmt "\n",    \

             __LINE__, __func__,  ##args);  \

} while (0)

​

#define DBG1(args...) DBG_(0x01, ##args)

#define DBG2(args...) DBG_(0x02, ##args)

#define DBG3(args...) DBG_(0x04, ##args)

#define DBG4(args...) DBG_(0x08, ##args)

​

/* TODO: rewrite to optimize macros... */

​

#define TMP_BUF_MAX 256

​

#define DUMP(buf__, len__)                      \

    do {                                \

        char tbuf[TMP_BUF_MAX] = {0};               \

        if (len__ > 1) {                    \

            u32 data_len = min_t(u32, len__, TMP_BUF_MAX);  \

            strscpy(tbuf, buf__, data_len);         \

            if (tbuf[data_len - 2] == '\r')         \

                tbuf[data_len - 2] = 'r';       \

            DBG1("SENDING: '%s' (%d+n)", tbuf, len__);  \

        } else {                        \

            DBG1("SENDING: '%s' (%d)", tbuf, len__);    \

        }                           \

    } while (0)

​

/*    Defines */

#define NOZOMI_NAME     "nozomi"

#define NOZOMI_NAME_TTY     "nozomi_tty"

#define DRIVER_DESC     "Nozomi driver"