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426 jermar 1
/*
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 * Copyright (C) 2005 Jakub Jermar
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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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#include <arch/console.h>
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#include <genarch/ofw/ofw.h>
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#include <console/chardev.h>
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#include <console/console.h>
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#include <arch/asm.h>
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#include <arch/register.h>
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static void ofw_sparc64_putchar(chardev_t *d, const char ch);
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static chardev_t ofw_sparc64_console;
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static chardev_operations_t ofw_sparc64_console_ops = {
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    .write = ofw_sparc64_putchar
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};
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void ofw_sparc64_console_init(void)
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{
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    chardev_initialize("ofw_sparc64_console", &ofw_sparc64_console, &ofw_sparc64_console_ops);
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    stdout = &ofw_sparc64_console;
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}
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/** Print one character.
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 *
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 * @param ch Character to be printed.
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 */
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void ofw_sparc64_putchar(chardev_t *d, const char ch)
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{
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    pstate_reg_t pstate;
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    /*
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     * 32-bit OpenFirmware depends on PSTATE.AM bit set.
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     */
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    pstate.value = pstate_read();
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    pstate.am = true;
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    pstate_write(pstate.value);
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    if (ch == '\n')
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        ofw_putchar('\r');
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    ofw_putchar(ch);
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    pstate.am = false;
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    pstate_write(pstate.value);
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}