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Add vector table

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This commit is contained in:
elias
2019-12-01 22:57:02 +01:00
parent 08ffb6ee94
commit 417106b967
28 changed files with 1129 additions and 274 deletions
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kernel/core/arch.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file arch.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef ARCH_H_F63C116D_51C9_4E25_9B1F_126833937268
#define ARCH_H_F63C116D_51C9_4E25_9B1F_126833937268
#include <aarch64/aarch64.h>
#define k_arch_init(...) aarch64_init(__VA_ARGS__)
#endif /* !ARCH_H */
kernel/core/irq.c
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file irq.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <aarch64/bcm2837.h>
#include "timer.h"
#include "log.h"
#include "irq.h"
static const char *m_types[] = {
"EL1t_SYNC",
"EL1t_IRQ",
"EL1t_FIQ",
"EL1t_ERROR",
"EL1h_SYNC",
"EL1h_IRQ",
"EL1h_FIQ",
"EL1h_ERROR",
"EL0_64_SYNC",
"EL0_64_IRQ",
"EL0_64_FIQ",
"EL0_64_ERROR",
"EL0_32_SYNC",
"EL0_32_IRQ",
"EL0_32_FIQ",
"EL0_32_ERROR"
};
void
k_irq_enable_controller()
{
aarch64_set32r(ENABLE_IRQS_1, SYSTEM_TIMER_IRQ_1);
}
void
k_irq_handler(void)
{
unsigned int irq = aarch64_get32r(IRQ_PENDING_1);
switch(irq) {
case SYSTEM_TIMER_IRQ_1:
k_timer_irq_handler();
break;
default:
k_logs("Unhandled irq: ");
k_logu(irq, 16);
k_logs("\n");
}
}
void
k_irq_fallback(int type, unsigned long esr, unsigned long address)
{
k_logs(m_types[type]);
k_logs(" -> ESR: ");
k_logu(esr, 16);
k_logs(", address: ");
k_logu(address, 16);
k_logs("\n");
}
kernel/core/irq.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file irq.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef IRQ_H_037ADD8D_3AAA_4541_A876_843DFF3A59E8
#define IRQ_H_037ADD8D_3AAA_4541_A876_843DFF3A59E8
#include <aarch64/aarch64.h>
void
k_irq_enable_controller(void);
void
k_irq_handler(void);
void
k_irq_fallback(int type, unsigned long esr, unsigned long address);
#define k_irq_enable(...) aarch64_irq_enable(__VA_ARGS__)
#define k_irq_disable(...) aarch64_irq_disable(__VA_ARGS__)
#endif /* !IRQ_H */
kernel/core/log.c
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file log.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <device/uart/uart.h>
#include "log.h"
void
k_log_init(void)
{
uart_init();
}
Ki32
k_logs(const Ki8 *string)
{
Ki8 c;
const Ki8 *p = string;
while((c = *p) != 0) {
if (uart_write(c))
return -1;
p++;
}
return (Ki32)(p - string);
}
Ki32
k_logi(Ki64 value, Ku8 base)
{
Ki32 result;
if (value < 0) {
if (uart_write('-'))
return -1;
value = -value;
result = 1;
} else {
result = 0;
}
result += k_logu(value, base);
return (result) ? result : -1;
}
Ki32
k_logu(Ku64 value, Ku8 base)
{
Ki32 i = 0, result;
Ku8 buffer[64];
if (!value) {
return (uart_write('0')) ? -1 : 1;
}
do {
if (!(i < (sizeof(buffer) / sizeof(buffer[0]))))
return -1;
Ku64 r = value % base;
buffer[i++] = (r < 0x0A) ? '0' + r : 'A' + r - 0x0A;
value /= base;
} while (value);
result = i;
while (i--) {
if (uart_write(buffer[i]))
return -1;
}
return result;
}
kernel/core/log.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file print.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef LOG_H_AE38CD54_2822_47A5_AFB1_E785739FA01D
#define LOG_H_AE38CD54_2822_47A5_AFB1_E785739FA01D
#include <core/types.h>
void
k_log_init(void);
Ki32
k_logs(const Ki8 *string);
Ki32
k_logi(Ki64 value, Ku8 base);
Ki32
k_logu(Ku64 value, Ku8 base);
#endif /* !LOG_H */
kernel/core/main.c
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file main.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <core/log.h>
#include <core/arch.h>
#include <core/irq.h>
#include <core/timer.h>
void
k_main(void);
void
k_main(void)
{
k_log_init();
k_logs("Starting Lowe OS (EL");
k_logi(aarch64_get_el(), 10);
k_logs(")\n");
if (k_arch_init())
goto panic;
k_timer_init();
k_irq_enable_controller();
k_irq_enable();
goto ok;
/*
k_logs("\tclock");
if (k_clock_init())
goto panic;
k_logs(" - ok\n\tscheduler");
if (k_scheduler_init())
goto panic;
k_logs(" - ok\n");
k_scheduler_run();
*/
panic:
k_logs(" - ERROR\n");
ok:
for (;;) {
__asm__("WFE");
}
}
kernel/core/task.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file task.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef TASK_H_AE13C166_79B5_4256_ABF3_74DF04E1CD18
#define TASK_H_AE13C166_79B5_4256_ABF3_74DF04E1CD18
#include <core/types.h>
typedef Ku32 KTaskId;
typedef void (*KTaskCallback)(void *p_ctx);
struct k_task {
KByte name[K_CONFIG_TASK_MAX_NAME_LEN + 1];
KTaskCallback callback;
Ku32 *stack;
Ku32 stack_size;
Ku32 priority;
};
KTaskId
k_task_create(struct k_task *p_task, KTaskCallback callback, Ku32 *stack
, Ku32 stack_size);
#endif /* !TASK_H */
kernel/core/timer.c
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file timer.c
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#include <aarch64/aarch64.h>
#include <aarch64/bcm2837.h>
#include "timer.h"
#include "log.h"
const unsigned int m_interval = 200000;
unsigned int m_current = 0;
void
k_timer_init(void)
{
m_current = aarch64_get32r(TIMER_CLO);
m_current += m_interval;
aarch64_set32r(TIMER_C1, m_current);
}
void
k_timer_irq_handler(void)
{
m_current += m_interval;
aarch64_set32r(TIMER_C1, m_current);
aarch64_set32r(TIMER_CS, TIMER_CS_M1);
k_logs("Timer interrupt\n");
}
kernel/core/timer.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file timer.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef TIMER_H_8D327261_47D6_4832_8DC5_31BF1614A21F
#define TIMER_H_8D327261_47D6_4832_8DC5_31BF1614A21F
void
k_timer_init(void);
void
k_timer_irq_handler(void);
#endif /* !TIMER_H */
kernel/core/types.h
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/******************************************************************************
*
* Copyright (c) 2017-2019 by Löwenware Ltd
* Please, refer LICENSE file for legal information
*
******************************************************************************/
/**
* @file types.h
* @author Ilja Kartašov <ik@lowenware.com>
* @brief
*
* @see https://lowenware.com/
*/
#ifndef TYPES_H_BC3DA9C0_C9EE_4853_B5F5_EAA4B801664C
#define TYPES_H_BC3DA9C0_C9EE_4853_B5F5_EAA4B801664C
typedef int KRetCode;
typedef int Ki32;
typedef unsigned int Ku32;
typedef long long Ki64;
typedef unsigned long long Ku64;
typedef char Ki8;
typedef unsigned char Ku8;
typedef char KByte;
#endif /* !TYPES_H */