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/*

 *  drivers/s390/char/hwc_con.c

 *    HWC line mode console driver

 *

 *  S390 version

 *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation

 *    Author(s): Martin Peschke <mpeschke@de.ibm.com>

 */

#include <linux/config.h>

#include <linux/kernel.h>

#include <linux/major.h>

#include <linux/errno.h>

#include <linux/kdev_t.h>

#include <linux/string.h>

#include <linux/console.h>

#include <linux/fs.h>

#include <linux/init.h>

#include "hwc_rw.h"

#ifdef CONFIG_HWC_CONSOLE

#define  hwc_console_major 4

#define  hwc_console_minor 64

#define  hwc_console_name  "console"

void hwc_console_write (struct console *, const char *, unsigned int);

kdev_t hwc_console_device (struct console *);

void hwc_console_unblank (void);

#define  HWC_CON_PRINT_HEADER "hwc console driver: "

struct console hwc_console = {

        name:   hwc_console_name,

        write:  hwc_console_write,

        device: hwc_console_device,

        unblank:hwc_console_unblank,

        flags:  CON_PRINTBUFFER,

};

void

hwc_console_write (

                          struct console *console,

                          const char *message,

                          unsigned int count)

{

        if (console->device (console) != hwc_console.device (&hwc_console)) {

                hwc_printk (KERN_WARNING HWC_CON_PRINT_HEADER

                            "hwc_console_write() called with wrong "

                            "device number");

                return;

        }

        hwc_write (0, message, count);

}

kdev_t

hwc_console_device (struct console * c)

{

        return MKDEV (hwc_console_major, hwc_console_minor);

}

void

hwc_console_unblank (void)

{

        hwc_unblank ();

}

#endif

void __init

hwc_console_init (void)

{

        if (!MACHINE_HAS_HWC)

                return;

        if (hwc_init () == 0) {

#ifdef CONFIG_HWC_CONSOLE

                if (CONSOLE_IS_HWC)

                        register_console (&hwc_console);

#endif

        } else

                panic (HWC_CON_PRINT_HEADER "hwc initialisation failed !");

        return;

}