FreeBSD/Linux Kernel Cross Reference
sys/mips/adm5120/console.c

     /* $NetBSD: uart.c,v 1.2 2007/03/23 20:05:47 dogcow Exp $ */
     
     /*-
      * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or
      * without modification, are permitted provided that the following
      * conditions are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above
     *    copyright notice, this list of conditions and the following
     *    disclaimer in the documentation and/or other materials provided
     *    with the distribution.
     * 3. The names of the authors may not be used to endorse or promote
     *    products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
     * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
     * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     * OF SUCH DAMAGE.
     *
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/9.0/sys/mips/adm5120/console.c 202175 2010-01-12 21:36:08Z imp $");
    
    #include <sys/types.h>
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/time.h>
    
    #include <sys/cons.h>
    #include <sys/consio.h>
    
    static cn_probe_t       uart_cnprobe;
    static cn_init_t        uart_cninit;
    static cn_term_t        uart_cnterm;
    static cn_getc_t        uart_cngetc;
    static cn_putc_t        uart_cnputc;
    
    static void
    uart_cnprobe(struct consdev *cp)
    {
    
            sprintf(cp->cn_name, "uart");
            cp->cn_pri = CN_NORMAL;
    }
    
    static void
    uart_cninit(struct consdev *cp)
    {
    
    }
    
    
    void
    uart_cnputc(struct consdev *cp, int c)
    {
            char chr;
    
            chr = c;
            while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
            (*((volatile unsigned long *)0xb2600000)) = c;
            while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ;
    }
    
    int
    uart_cngetc(struct consdev * cp)
    {
    
            while ((*((volatile unsigned long *)0xb2600018)) & 0x10) ;
            return (*((volatile unsigned long *)0xb2600000)) & 0xff;
    }
    
    static void
    uart_cnterm(struct consdev * cp)
    {
    
    }
    
    CONSOLE_DRIVER(uart);

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