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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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/** @addtogroup sparc64
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 * @{
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 */
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/** @file
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 */
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#include <arch/console.h>
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#include <arch/types.h>
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#include <arch/drivers/scr.h>
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#include <arch/drivers/kbd.h>
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#include <arch/drivers/sgcn.h>
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#include <genarch/srln/srln.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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#include <proc/thread.h>
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#include <arch/mm/tlb.h>
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#include <genarch/ofw/ofw_tree.h>
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#include <arch.h>
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#include <panic.h>
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#include <string.h>
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#include <print.h>
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#define KEYBOARD_POLL_PAUSE 50000   /* 50ms */
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/**
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 * Initialize kernel console to use framebuffer and keyboard directly.
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 * Called on UltraSPARC machines with standard keyboard and framebuffer.
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 *
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 * @param aliases   the "/aliases" OBP node
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 */
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static void standard_console_init(ofw_tree_node_t *aliases)
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{
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#ifdef CONFIG_FB
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    ofw_tree_property_t *prop;
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    ofw_tree_node_t *screen;
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    ofw_tree_node_t *keyboard;
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    prop = ofw_tree_getprop(aliases, "screen");
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    if (!prop)
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        panic("Cannot find property 'screen'.");
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    if (!prop->value)
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        panic("Cannot find screen alias.");
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    screen = ofw_tree_lookup(prop->value);
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    if (!screen)
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        panic("Cannot find %s.", prop->value);
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    scr_init(screen);
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    prop = ofw_tree_getprop(aliases, "keyboard");
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    if (!prop)
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        panic("Cannot find property 'keyboard'.");
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    if (!prop->value)
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        panic("Cannot find keyboard alias.");
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    keyboard = ofw_tree_lookup(prop->value);
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    if (!keyboard)
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        panic("Cannot find %s.", prop->value);
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    kbd_init(keyboard);
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#else
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    panic("Standard console requires FB, "
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          "but the kernel is not compiled with FB support.");
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#endif
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}
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/** Initilize I/O on the Serengeti machine. */
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static void serengeti_init(void)
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{
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#ifdef CONFIG_SRLN
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    srln_init(stdin);
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    sgcn_init(&srlnin);
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#endif
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}
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/**
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 * Initialize input/output. Auto-detects the type of machine
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 * and calls the appropriate I/O init routine.
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 */
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void standalone_sparc64_console_init(void)
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{
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    ofw_tree_node_t *aliases;
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    ofw_tree_property_t *prop;
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    aliases = ofw_tree_lookup("/aliases");
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    if (!aliases)
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        panic("Cannot find '/aliases'.");
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    /* "def-cn" = "default console" */
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    prop = ofw_tree_getprop(aliases, "def-cn");
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    if ((!prop) || (!prop->value) || (strcmp(prop->value, "/sgcn") != 0)) {
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        standard_console_init(aliases);
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    } else {
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        serengeti_init();
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    }
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}
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/** Acquire console back for kernel
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 *
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 */
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void arch_grab_console(void)
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{
3865 rimsky 134 
#ifdef CONFIG_FB
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    scr_redraw();
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#endif
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    switch (kbd_type) {
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#ifdef CONFIG_SGCN
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    case KBD_SGCN:
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        sgcn_grab();
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        break;
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#endif
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    default:
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        break;
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    }
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}
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/** Return console to userspace
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 *
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 */
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void arch_release_console(void)
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{
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    switch (kbd_type) {
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#ifdef CONFIG_SGCN
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    case KBD_SGCN:
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        sgcn_release();
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        break;
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#endif
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    default:
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        break;
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    }
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}
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/** @}
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 */