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1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
4153 mejdrech 3
 * Copyright (c) 2009 Jiri Svoboda
4
 * 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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 *
19
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21
 * 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,
25
 * 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.
29
 */
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1888 jermar 31
/** @addtogroup ia32
1702 cejka 32
 * @{
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 */
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/** @file
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 */
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1 jermar 37
#include <arch.h>
38
 
39
#include <arch/types.h>
40
 
41
#include <arch/pm.h>
42
 
4153 mejdrech 43
#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>
4153 mejdrech 47
#include <genarch/drivers/i8042/i8042.h>
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#include <genarch/kbrd/kbrd.h>
1477 decky 49
#include <arch/drivers/i8254.h>
50
#include <arch/drivers/i8259.h>
1 jermar 51
 
52
#include <arch/context.h>
53
 
54
#include <config.h>
55
 
56
#include <arch/interrupt.h>
28 jermar 57
#include <arch/asm.h>
452 decky 58
#include <genarch/acpi/acpi.h>
195 vana 59
 
60
#include <arch/bios/bios.h>
61
 
576 palkovsky 62
#include <interrupt.h>
1956 decky 63
#include <ddi/irq.h>
1074 palkovsky 64
#include <arch/debugger.h>
1112 palkovsky 65
#include <proc/thread.h>
66
#include <syscall/syscall.h>
1474 palkovsky 67
#include <console/console.h>
4153 mejdrech 68
#include <sysinfo/sysinfo.h>
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#include <arch/boot/boot.h>
1 jermar 70
 
1901 jermar 71
#ifdef CONFIG_SMP
72
#include <arch/smp/apic.h>
73
#endif
74
 
4153 mejdrech 75
/** Perform ia32-specific initialization before main_bsp() is called.
76
 *
77
 * @param signature Should contain the multiboot signature.
78
 * @param mi        Pointer to the multiboot information structure.
79
 */
80
void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
81
{
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    /* Parse multiboot information obtained from the bootloader. */
4327 mejdrech 83
    multiboot_info_parse(signature, mi);
4153 mejdrech 84
 
85
#ifdef CONFIG_SMP
86
    /* Copy AP bootstrap routines below 1 MB. */
87
    memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET,
88
        (size_t) &_hardcoded_unmapped_size);
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#endif
90
}
91
 
26 jermar 92
void arch_pre_mm_init(void)
1 jermar 93
{
94
    pm_init();
95
 
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
    }
103
}
104
 
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 */
109
        irq_init(IRQ_COUNT, IRQ_COUNT);
110
 
111
        /* hard clock */
112
        i8254_init();
4153 mejdrech 113
 
1287 vana 114
#ifdef CONFIG_FB
4153 mejdrech 115
        if (vesa_present())
1303 palkovsky 116
            vesa_init();
1287 vana 117
        else
118
#endif
4153 mejdrech 119
#ifdef CONFIG_EGA
120
            ega_init(EGA_BASE, EGA_VIDEORAM);  /* video */
121
#else
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            {}
123
#endif
1287 vana 124
 
1074 palkovsky 125
        /* Enable debugger */
126
        debugger_init();
1303 palkovsky 127
        /* Merge all memory zones to 1 big zone */
128
        zone_merge_all();
32 jermar 129
    }
130
}
131
 
1901 jermar 132
void arch_post_cpu_init()
133
{
134
#ifdef CONFIG_SMP
135
        if (config.cpu_active > 1) {
136
        l_apic_init();
137
        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)
152
{
4153 mejdrech 153
#ifdef CONFIG_PC_KBD
154
    /*
155
     * Initialize the i8042 controller. Then initialize the keyboard
156
     * module and connect it to i8042. Enable keyboard interrupts.
157
     */
4327 mejdrech 158
    i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
159
    if (i8042_instance) {
160
        kbrd_instance_t *kbrd_instance = kbrd_init();
161
        if (kbrd_instance) {
162
            indev_t *sink = stdin_wire();
163
            indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
164
            i8042_wire(i8042_instance, kbrd);
165
            trap_virtual_enable_irqs(1 << IRQ_KBD);
166
        }
4153 mejdrech 167
    }
168
 
169
    /*
170
     * This is the necessary evil until the userspace driver is entirely
171
     * self-sufficient.
172
     */
173
    sysinfo_set_item_val("kbd", NULL, true);
174
    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
175
    sysinfo_set_item_val("kbd.address.physical", NULL,
176
        (uintptr_t) I8042_BASE);
177
    sysinfo_set_item_val("kbd.address.kernel", NULL,
178
        (uintptr_t) I8042_BASE);
179
#endif
503 jermar 180
}
181
 
1 jermar 182
void calibrate_delay_loop(void)
183
{
184
    i8254_calibrate_delay_loop();
514 jermar 185
    if (config.cpu_active == 1) {
186
        /*
187
         * This has to be done only on UP.
188
         * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
189
         */
190
        i8254_normal_operation();
191
    }
1 jermar 192
}
1112 palkovsky 193
 
1121 jermar 194
/** Set thread-local-storage pointer
1112 palkovsky 195
 *
1119 palkovsky 196
 * TLS pointer is set in GS register. That means, the GS contains
197
 * selector, and the descriptor->base is the correct address.
1112 palkovsky 198
 */
1780 jermar 199
unative_t sys_tls_set(unative_t addr)
1112 palkovsky 200
{
1184 jermar 201
    THREAD->arch.tls = addr;
1112 palkovsky 202
    set_tls_desc(addr);
203
 
204
    return 0;
205
}
1474 palkovsky 206
 
207
/** Acquire console back for kernel
208
 *
209
 */
210
void arch_grab_console(void)
211
{
4153 mejdrech 212
#ifdef CONFIG_FB
213
    if (vesa_present())
214
        vesa_redraw();
215
    else
216
#endif
217
#ifdef CONFIG_EGA
218
        ega_redraw();
219
#else
220
        {}
221
#endif
1474 palkovsky 222
}
4153 mejdrech 223
 
1474 palkovsky 224
/** Return console to userspace
225
 *
226
 */
227
void arch_release_console(void)
228
{
229
}
1702 cejka 230
 
4153 mejdrech 231
/** Construct function pointer
232
 *
233
 * @param fptr   function pointer structure
234
 * @param addr   function address
235
 * @param caller calling function address
236
 *
237
 * @return address of the function pointer
238
 *
239
 */
240
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
241
{
242
    return addr;
243
}
244
 
4263 mejdrech 245
void arch_reboot(void)
246
{
247
#ifdef CONFIG_PC_KBD
248
    i8042_cpu_reset((i8042_t *) I8042_BASE);
249
#endif
250
}
251
 
1888 jermar 252
/** @}
1702 cejka 253
 */