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1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
4055 trochtova 3
 * Copyright (c) 2009 Jiri Svoboda
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 * Copyright (c) 2009 Martin Decky
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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 ia32
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 * @{
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 */
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/** @file
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 */
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#include <arch.h>
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#include <arch/types.h>
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#include <arch/pm.h>
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#include <genarch/multiboot/multiboot.h>
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#include <genarch/drivers/legacy/ia32/io.h>
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#include <genarch/drivers/ega/ega.h>
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#include <arch/drivers/vesa.h>
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#include <genarch/drivers/i8042/i8042.h>
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#include <genarch/kbrd/kbrd.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 <interrupt.h>
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#include <ddi/irq.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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#include <ddi/device.h>
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#include <sysinfo/sysinfo.h>
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#include <arch/boot/boot.h>
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#ifdef CONFIG_SMP
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#include <arch/smp/apic.h>
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#endif
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4055 trochtova 76
/** Perform ia32-specific initialization before main_bsp() is called.
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 *
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 * @param signature Should contain the multiboot signature.
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 * @param mi        Pointer to the multiboot information structure.
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 */
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void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
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{
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    /* Parse multiboot information obtained from the bootloader. */
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    multiboot_info_parse(signature, mi);   
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#ifdef CONFIG_SMP
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    /* Copy AP bootstrap routines below 1 MB. */
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    memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET,
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        (size_t) &_hardcoded_unmapped_size);
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#endif
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}
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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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        interrupt_init();
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        bios_init();
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        /* PIC */
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        i8259_init();
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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) {
1956 decky 109
        /* Initialize IRQ routing */
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        irq_init(IRQ_COUNT, IRQ_COUNT);
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        /* hard clock */
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        i8254_init();
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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(EGA_BASE, EGA_VIDEORAM);   /* 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_post_cpu_init()
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{
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#ifdef CONFIG_SMP
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        if (config.cpu_active > 1) {
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        l_apic_init();
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        l_apic_debug();
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    }
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#endif
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}
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503 jermar 139
void arch_pre_smp_init(void)
32 jermar 140
{
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    if (config.cpu_active == 1) {
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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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    devno_t devno = device_assign_devno();
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    /*
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     * Initialize the keyboard module and conect it to stdin. Then
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     * initialize the i8042 controller and connect it to kbrdin. Enable
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     * keyboard interrupts.
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     */
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    kbrd_init(stdin);
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    (void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD, &kbrdin);
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    trap_virtual_enable_irqs(1 << IRQ_KBD);
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    /*
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     * This is the necessary evil until the userspace driver is entirely
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     * self-sufficient.
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     */
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    sysinfo_set_item_val("kbd", NULL, true);
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    sysinfo_set_item_val("kbd.devno", NULL, devno);
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    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
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    sysinfo_set_item_val("kbd.address.physical", NULL,
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        (uintptr_t) I8042_BASE);
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    sysinfo_set_item_val("kbd.address.kernel", NULL,
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        (uintptr_t) I8042_BASE);
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}
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1 jermar 174
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();
183
    }
1 jermar 184
}
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1121 jermar 186
/** Set thread-local-storage pointer
1112 palkovsky 187
 *
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 * TLS pointer is set in GS register. That means, the GS contains
189
 * selector, and the descriptor->base is the correct address.
1112 palkovsky 190
 */
1780 jermar 191
unative_t sys_tls_set(unative_t addr)
1112 palkovsky 192
{
1184 jermar 193
    THREAD->arch.tls = addr;
1112 palkovsky 194
    set_tls_desc(addr);
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196
    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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#ifdef CONFIG_FB
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    vesa_redraw();
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#else
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    ega_redraw();
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#endif
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}
4055 trochtova 210
 
1474 palkovsky 211
/** 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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}
1702 cejka 217
 
4055 trochtova 218
/** Construct function pointer
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 *
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 * @param fptr   function pointer structure
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 * @param addr   function address
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 * @param caller calling function address
223
 *
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 * @return address of the function pointer
225
 *
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 */
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void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
228
{
229
    return addr;
230
}
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1888 jermar 232
/** @}
1702 cejka 233
 */