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1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
4153 mejdrech 3
 * Copyright (c) 2009 Jiri Svoboda
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 * Copyright (c) 2009 Martin Decky
1 jermar 5
 * 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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1888 jermar 31
/** @addtogroup ia32
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 * @{
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 */
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/** @file
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 */
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1 jermar 37
#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>
1477 decky 46
#include <arch/drivers/vesa.h>
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#include <genarch/drivers/i8042/i8042.h>
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#include <genarch/kbrd/kbrd.h>
1477 decky 49
#include <arch/drivers/i8254.h>
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#include <arch/drivers/i8259.h>
1 jermar 51
 
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#include <arch/context.h>
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#include <config.h>
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#include <arch/interrupt.h>
28 jermar 57
#include <arch/asm.h>
452 decky 58
#include <genarch/acpi/acpi.h>
195 vana 59
 
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#include <arch/bios/bios.h>
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576 palkovsky 62
#include <interrupt.h>
1956 decky 63
#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 <sysinfo/sysinfo.h>
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#include <arch/boot/boot.h>
1 jermar 70
 
1901 jermar 71
#ifdef CONFIG_SMP
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#include <arch/smp/apic.h>
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#endif
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4153 mejdrech 75
/** 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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85
#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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26 jermar 92
void arch_pre_mm_init(void)
1 jermar 93
{
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    pm_init();
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96
    if (config.cpu_active == 1) {
1956 decky 97
        interrupt_init();
30 jermar 98
        bios_init();
235 decky 99
 
1956 decky 100
        /* PIC */
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        i8259_init();
1 jermar 102
    }
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}
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72 decky 105
void arch_post_mm_init(void)
23 jermar 106
{
24 jermar 107
    if (config.cpu_active == 1) {
1956 decky 108
        /* Initialize IRQ routing */
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        irq_init(IRQ_COUNT, IRQ_COUNT);
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111
        /* hard clock */
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        i8254_init();
4153 mejdrech 113
 
1287 vana 114
#ifdef CONFIG_FB
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        if (vesa_present())
1303 palkovsky 116
            vesa_init();
1287 vana 117
        else
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#endif
4153 mejdrech 119
#ifdef CONFIG_EGA
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            ega_init(EGA_BASE, EGA_VIDEORAM);  /* video */
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#else
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            {}
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#endif
1287 vana 124
 
1074 palkovsky 125
        /* 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();
32 jermar 129
    }
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}
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1901 jermar 132
void arch_post_cpu_init()
133
{
134
#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();
138
    }
139
#endif
140
}
141
 
503 jermar 142
void arch_pre_smp_init(void)
32 jermar 143
{
144
    if (config.cpu_active == 1) {
2107 jermar 145
#ifdef CONFIG_SMP
29 jermar 146
        acpi_init();
2107 jermar 147
#endif /* CONFIG_SMP */
24 jermar 148
    }
23 jermar 149
}
150
 
503 jermar 151
void arch_post_smp_init(void)
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{
4153 mejdrech 153
#ifdef CONFIG_PC_KBD
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    /*
155
     * Initialize the i8042 controller. Then initialize the keyboard
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     * module and connect it to i8042. Enable keyboard interrupts.
157
     */
158
    indev_t *kbrdin = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
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    if (kbrdin) {
160
        kbrd_init(kbrdin);
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        trap_virtual_enable_irqs(1 << IRQ_KBD);
162
    }
163
 
164
    /*
165
     * This is the necessary evil until the userspace driver is entirely
166
     * self-sufficient.
167
     */
168
    sysinfo_set_item_val("kbd", NULL, true);
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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);
174
#endif
503 jermar 175
}
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1 jermar 177
void calibrate_delay_loop(void)
178
{
179
    i8254_calibrate_delay_loop();
514 jermar 180
    if (config.cpu_active == 1) {
181
        /*
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         * This has to be done only on UP.
183
         * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
184
         */
185
        i8254_normal_operation();
186
    }
1 jermar 187
}
1112 palkovsky 188
 
1121 jermar 189
/** Set thread-local-storage pointer
1112 palkovsky 190
 *
1119 palkovsky 191
 * TLS pointer is set in GS register. That means, the GS contains
192
 * selector, and the descriptor->base is the correct address.
1112 palkovsky 193
 */
1780 jermar 194
unative_t sys_tls_set(unative_t addr)
1112 palkovsky 195
{
1184 jermar 196
    THREAD->arch.tls = addr;
1112 palkovsky 197
    set_tls_desc(addr);
198
 
199
    return 0;
200
}
1474 palkovsky 201
 
202
/** Acquire console back for kernel
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 *
204
 */
205
void arch_grab_console(void)
206
{
4153 mejdrech 207
#ifdef CONFIG_FB
208
    if (vesa_present())
209
        vesa_redraw();
210
    else
211
#endif
212
#ifdef CONFIG_EGA
213
        ega_redraw();
214
#else
215
        {}
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#endif
1474 palkovsky 217
}
4153 mejdrech 218
 
1474 palkovsky 219
/** Return console to userspace
220
 *
221
 */
222
void arch_release_console(void)
223
{
224
}
1702 cejka 225
 
4153 mejdrech 226
/** Construct function pointer
227
 *
228
 * @param fptr   function pointer structure
229
 * @param addr   function address
230
 * @param caller calling function address
231
 *
232
 * @return address of the function pointer
233
 *
234
 */
235
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
236
{
237
    return addr;
238
}
239
 
4263 mejdrech 240
void arch_reboot(void)
241
{
242
#ifdef CONFIG_PC_KBD
243
    i8042_cpu_reset((i8042_t *) I8042_BASE);
244
#endif
245
}
246
 
1888 jermar 247
/** @}
1702 cejka 248
 */