arch/ppc-sam440/kernel/kernel_debug.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/debug.h>
   7 #include <asm/amcc440.h>
   8 #include <asm/io.h>
   9 #include <aros/libcall.h>
  10 #include <stdarg.h>
  11 #include <string.h>
  12 #include <proto/exec.h>
  13 #include <exec/lists.h>
  14 #include <exec/nodes.h>
  15 #include <exec/memory.h>
  16
  17 #include "kernel_intern.h"
  18
  19 struct PrivData {
  20     struct KernelBase *kbase;
  21     uint32_t tbu, tbl;
  22 };
  23
  24 /*
  25  * Character output function. All debug output ends up there.
  26  * This function needs to be implemented for every supported architecture.
  27  * KernelBase is an optional parameter here. During
  28  * very early startup it can be NULL.
  29  */
  30
  31 int krnPutC(int c, struct KernelBase *KernelBase)
  32 {
  33     if (c == '\n')
  34     {
  35         krnPutC('\r', KernelBase);
  36     }
  37     while(!(inb(UART0_LSR) & UART_LSR_TEMT));
  38     outb(c, UART0_THR);
  39
  40     return 1;
  41 }