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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [s390/] [char/] [hwc_con.c] - Rev 1765
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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; }