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/*
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 * Copyright (c) 2006 Josef Cejka
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 * All rights reserved.
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 *
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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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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup generic
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 * @{
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 */
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/** @file
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 */
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#include <print.h>
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#include <printf/printf_core.h>
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#include <putchar.h>
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#include <synch/spinlock.h>
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#include <arch/asm.h>
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#include <arch/types.h>
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#include <typedefs.h>
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#include <string.h>
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SPINLOCK_INITIALIZE(printf_lock);  /**< vprintf spinlock */
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static int vprintf_write_utf8(const char *str, size_t size, void *data)
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{
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    index_t index = 0;
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    index_t chars = 0;
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    while (index < size) {
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        putchar(utf8_decode(str, &index, size - 1));
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        index++;
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        chars++;
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    }
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    return chars;
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}
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static int vprintf_write_utf32(const wchar_t *str, size_t size, void *data)
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{
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    index_t index = 0;
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    while (index < (size / sizeof(wchar_t))) {
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        putchar(str[index]);
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        index++;
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    }
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    return index;
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}
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int puts(const char *str)
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{
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    index_t index = 0;
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    index_t chars = 0;
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    wchar_t uc;
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    while ((uc = utf8_decode(str, &index, UTF8_NO_LIMIT)) != 0) {
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        putchar(uc);
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        index++;
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        chars++;
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    }
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    return chars;
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}
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int vprintf(const char *fmt, va_list ap)
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{
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    printf_spec_t ps = {
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        vprintf_write_utf8,
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        vprintf_write_utf32,
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        NULL
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    };
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    ipl_t ipl = interrupts_disable();
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    spinlock_lock(&printf_lock);
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    int ret = printf_core(fmt, &ps, ap);
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    spinlock_unlock(&printf_lock);
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    interrupts_restore(ipl);
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    return ret;
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}
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/** @}
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 */