bsp/hal/ppc/prep/diag.c

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This source file includes following definitions.
serial_putc
diag_puts
diag_init
diag_puts
diag_init
   1 /*-
   2  * Copyright (c) 2009, Kohsuke Ohtani
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 /*
  31  * diag.c - diagnostic message support
  32  */
  33 
  34 #include <sys/bootinfo.h>
  35 #include <kernel.h>
  36 #include <cpufunc.h>
  37 #include <io.h>
  38 
  39 #ifdef CONFIG_DIAG_SERIAL
  40 
  41 #define COM_BASE        CONFIG_NS16550_BASE
  42 #define COM_THR         (COM_BASE + 0x00)       /* transmit holding register */
  43 #define COM_LSR         (COM_BASE + 0x05)       /* line status register */
  44 
  45 static void
  46 serial_putc(char c)
  47 {
  48 
  49         while (!(inb(COM_LSR) & 0x20))
  50                 ;
  51         outb(COM_THR, c);
  52 }
  53 
  54 void
  55 diag_puts(char *str)
  56 {
  57 
  58         while (*str) {
  59                 if (*str == '\n')
  60                         serial_putc('\r');
  61                 serial_putc(*str++);
  62         }
  63 }
  64 
  65 /*
  66  * We assume the serial port has already been initialized by
  67  * the boot loader.
  68  */
  69 void
  70 diag_init(void)
  71 {
  72         /* DO NOTHING */
  73 }
  74 #endif  /* !CONFIG_DIAG_SERIAL */
  75 
  76 #ifdef CONFIG_DIAG_QEMU
  77 void
  78 diag_puts(char *str)
  79 {
  80 
  81         while (*str) {
  82                 /* Write to the qemu debug port. */
  83                 outb(0xf00, (u_char)*str++);
  84         }
  85 }
  86 
  87 void
  88 diag_init(void)
  89 {
  90 }
  91 #endif  /* !CONFIG_DIAG_QEMU */
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root/bsp/hal/ppc/prep/diag.c

DEFINITIONS
