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/*
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/*
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 * Copyright (C) 2003-2004 Jakub Jermar
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 * Copyright (C) 2005 Ondrej Palkovsky
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 */
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 */
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#include <putchar.h>
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#include <putchar.h>
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#include <arch/types.h>
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#include <arch/types.h>
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#include <arch/cp0.h>
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#include <arch/cp0.h>
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#include <arch/console.h>
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#define VIDEORAM    0xB0000000
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static void (*putchar_func)(const char ch) = NULL;
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void putchar(const char ch)
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static void cons_putchar(const char ch)
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{
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{
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//  __u32 status = cp0_status_read();
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//  cp0_status_write(cp0_status_read() | cp0_status_erl_error_bit);
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    *((char *) VIDEORAM) = ch;
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    *((char *) VIDEORAM) = ch;
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}
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static void serial_putchar(const char ch)
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{
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    int i;
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    if (ch=='\n')
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        putchar('\r');
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    /* Wait until transmit buffer empty */
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    while (! ((*SERIAL_LSR) & (1<<TRANSMIT_EMPTY_BIT)))
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        ;
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    *(SERIAL_PORT_BASE) = ch;
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}
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void console_init(void)
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{
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    /* The LSR on the start usually contains this value */
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    if (*SERIAL_LSR == 0x60)
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        putchar_func = serial_putchar;
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    else
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//  cp0_status_write(status);
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        putchar_func = cons_putchar;
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}
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void putchar(const char ch)
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{
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    putchar_func(ch);
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}
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}