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/*
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/*
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 * Copyright (C) 2005 Jakub Jermar
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 * Copyright (C) 2005 Jakub Jermar
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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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 * - Redistributions of source code must retain the above copyright
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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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 *   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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 * - 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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 *   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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 *   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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 * - 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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 *   derived from this software without specific prior written permission.
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 *
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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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * (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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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <arch/ski/ski.h>
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#include <arch/ski/ski.h>
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#include <console/console.h>
- 
 
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#include <console/chardev.h>
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/** Initialize debug console
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static chardev_t ski_console;
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 *
 - 
 
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 * Issue SSC (Simulator System Call) to
 - 
 
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 * to open debug console.
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static bool kb_disable;
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 */
 - 
 
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void ski_init_console(void)
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{
 - 
 
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    __asm__ (
 - 
 
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        "mov r15=%0\n"
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        "break 0x80000\n"
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        :
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        : "i" (SKI_INIT_CONSOLE)
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        : "r15", "r8"
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    );
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}
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/** Display character on debug console
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/** Display character on debug console
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 *
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 *
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 * Use SSC (Simulator System Call) to
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 * Use SSC (Simulator System Call) to
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 * display character on debug console.
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 * display character on debug console.
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 *
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 *
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 * @param ch   Character to be printed.
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 * @param ch   Character to be printed.
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 */
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 */
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void ski_putchar(const char ch)
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void ski_write(chardev_t *d, const char ch)
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{
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{
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    __asm__ (
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    __asm__ (
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        "mov r15=%0\n"
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        "mov r15=%0\n"
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        "mov r32=%1\n"      /* r32 is in0 */
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        "mov r32=%1\n"      /* r32 is in0 */
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        "break 0x80000\n"   /* modifies r8 */
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        "break 0x80000\n"   /* modifies r8 */
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        :
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        :
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        : "i" (SKI_PUTCHAR), "r" (ch)
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        : "i" (SKI_PUTCHAR), "r" (ch)
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        : "r15", "in0", "r8"
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        : "r15", "in0", "r8"
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    );
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    );
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    if (ch == '\n') ski_putchar('\r');
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    if (ch == '\n') ski_putchar('\r');
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}
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}
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/** Ask debug console if a key was pressed.
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/** Ask debug console if a key was pressed.
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 *
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 *
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 * Use SSC (Simulator System Call) to
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 * Use SSC (Simulator System Call) to
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 * get character from debug console.
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 * get character from debug console.
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 *
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 *
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 * This call is non-blocking.
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 * This call is non-blocking.
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 *
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 *
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 * @return ASCII code of pressed key or 0 if no key pressed.
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 * @return ASCII code of pressed key or 0 if no key pressed.
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 */
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 */
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__s32 ski_getchar(void)
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__s32 ski_getchar(void)
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{
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{
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    __u64 ch;
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    __u64 ch;
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    __asm__ (
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    __asm__ (
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        "mov r15=%0\n"
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        "mov r15=%0\n"
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        "break 0x80000;;\n" /* modifies r8 */
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        "break 0x80000;;\n" /* modifies r8 */
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        "mov %1=r8;;\n"    
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        "mov %1=r8;;\n"    
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        :
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        :
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        : "i" (SKI_GETCHAR), "r" (ch)
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        : "i" (SKI_GETCHAR), "r" (ch)
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        : "r15",  "r8"
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        : "r15",  "r8"
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    );
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    );
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    return (__s32)ch;
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    return (__s32)ch;
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}
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}
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/** Ask keyboard if a key was pressed. */
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void poll_keyboard(void)
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{
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    char ch;
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    if (kb_disable)
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        return;
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    ch = ski_getchar();
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    if(ch == '\r')
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        ch = '\n';
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    if (ch)
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        chardev_push_character(&ski_console, ch);
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}
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/* Called from getc(). */
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static void ski_kb_enable(chardev_t *)
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{
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    kb_disable = false;
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}
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/* Called from getc(). */
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static void ski_kb_disable(chardev_t *d)
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{
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    kb_disable = true; 
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}
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static chardev_operations_t ski_ops = {
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    .resume = ski_kb_enable,
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    .suspend = ski_kb_disable,
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    .write = ski_write
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};
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/** Initialize debug console
- 
 
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 *
- 
 
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 * Issue SSC (Simulator System Call) to
- 
 
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 * to open debug console.
- 
 
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 */
- 
 
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void ski_init_console(void)
- 
 
 124 
{
- 
 
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    __asm__ (
- 
 
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        "mov r15=%0\n"
- 
 
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        "break 0x80000\n"
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        :
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        : "i" (SKI_INIT_CONSOLE)
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        : "r15", "r8"
- 
 
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    );
- 
 
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- 
 
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    chardev_initialize("ski_console", &ski_console, &ski_ops);
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    stdin = &ski_console;
- 
 
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    stdout = &ski_console;
- 
 
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}
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