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1 jermar 1 
/*
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 * Copyright (C) 2001-2004 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.h>
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#include <arch/types.h>
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#include <typedefs.h>
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#include <arch/pm.h>
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#include <arch/drivers/ega.h>
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#include <arch/drivers/vesa.h>
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#include <genarch/i8042/i8042.h>
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#include <arch/drivers/i8254.h>
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#include <arch/drivers/i8259.h>
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#include <arch/context.h>
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#include <config.h>
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#include <arch/interrupt.h>
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#include <arch/asm.h>
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#include <genarch/acpi/acpi.h>
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#include <arch/bios/bios.h>
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#include <arch/mm/memory_init.h>
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#include <interrupt.h>
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#include <arch/debugger.h>
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#include <proc/thread.h>
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#include <syscall/syscall.h>
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#include <console/console.h>
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void arch_pre_mm_init(void)
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{
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    pm_init();
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    if (config.cpu_active == 1) {
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        bios_init();
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        i8259_init();   /* PIC */
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        i8254_init();   /* hard clock */
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        exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall);
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        #ifdef CONFIG_SMP
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        exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown",
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                 (iroutine) tlb_shootdown_ipi);
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        #endif /* CONFIG_SMP */
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    }
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}
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void arch_post_mm_init(void)
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{
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    if (config.cpu_active == 1) {
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#ifdef CONFIG_FB
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        if (vesa_present())
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            vesa_init();
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        else
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#endif
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            ega_init(); /* video */
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        /* Enable debugger */
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        debugger_init();
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        /* Merge all memory zones to 1 big zone */
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        zone_merge_all();
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    }
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}
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void arch_pre_smp_init(void)
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{
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    if (config.cpu_active == 1) {
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        memory_print_map();
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        #ifdef CONFIG_SMP
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        acpi_init();
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        #endif /* CONFIG_SMP */
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    }
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}
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void arch_post_smp_init(void)
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{
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    i8042_init();   /* keyboard controller */
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}
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void calibrate_delay_loop(void)
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{
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    i8254_calibrate_delay_loop();
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    if (config.cpu_active == 1) {
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        /*
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         * This has to be done only on UP.
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         * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
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         */
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        i8254_normal_operation();
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    }
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}
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/** Set thread-local-storage pointer
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 *
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 * TLS pointer is set in GS register. That means, the GS contains
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 * selector, and the descriptor->base is the correct address.
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 */
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__native sys_tls_set(__native addr)
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{
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    THREAD->arch.tls = addr;
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    set_tls_desc(addr);
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    return 0;
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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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{
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    i8042_grab();
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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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    i8042_release();
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}