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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 <peschke@fh-brandenburg.de>
*/
#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"
extern void hwc_tty_init (void);
#ifdef CONFIG_HWC_CONSOLE
#define hwc_console_major 4
#define hwc_console_minor 0
#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 =
{
hwc_console_name,
hwc_console_write,
NULL,
hwc_console_device,
NULL,
hwc_console_unblank,
NULL,
CON_PRINTBUFFER,
0,
0,
NULL
};
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
__initfunc (unsigned long hwc_console_init (unsigned long kmem_start))
{
#ifdef CONFIG_3215
if (MACHINE_IS_VM)
return kmem_start;
#endif
if (MACHINE_IS_P390)
return kmem_start;
if (hwc_init (&kmem_start) == 0) {
hwc_tty_init ();
#ifdef CONFIG_HWC_CONSOLE
register_console (&hwc_console);
#endif
} else
panic (HWC_CON_PRINT_HEADER "hwc initialisation failed !");
return kmem_start;
}
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