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Доработка модуля Ps/2

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This commit is contained in:
Aren Elchinyan 2023-12-25 22:34:54 +03:00
parent 36d28d5f90
commit 2d0a37f6a5
7 changed files with 306 additions and 15 deletions
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2
kernel/arch/idt.c
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@ -53,7 +53,7 @@ static void exception_handler(struct frame state) {
void isr_generic(struct frame state) {
if (state.int_number > 255) { return; }
if (state.int_number != 32) { LOG("Обработка прерывания %u\n", state.int_number); }
// if (state.int_number != 32) { LOG("Обработка прерывания %u\n", state.int_number); }
if (state.int_number < 32) {
exception_handler(state);

1
kernel/fb.c
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@ -112,6 +112,7 @@ void scroll_fb( ) {
// Вывод одного символа
static void fb_putchar(char c) {
if (c == '\0') { return; }
if (c == '\t') {
pos_x += FONT_6X8_SLIM_CHAR_WIDTH * 4;
} else if (c == '\n') {

1
kernel/mod.c
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@ -116,6 +116,7 @@ void mod_init( ) {
module_list[modules_count].name = ret.name;
module_list[modules_count].message = ret.message;
module_list[modules_count].data_size = ret.data_size;
module_list[modules_count].get_func = ret.get_func;
if (ret.data_size != 0) { module_list[modules_count].data = ret.data; }
if (ret.irq != 0) {

3
modlib/types.h
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@ -10,6 +10,9 @@
#define TYPES_H
#define NULL ((void *)0)
#define bool _Bool
#define false 0
#define true 1
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;

165
modules/ps2/keymap.h Normal file
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@ -0,0 +1,165 @@
#include "special.h"
static char en_chars_lower[] = {
0, 27, '1', '2', '3', '4', '5', '6', '7', '8', /* 9 */
'9', '0', '-', '=', '\b', /* Backspace */
'\t', /* Tab */
'q', 'w', 'e', 'r', /* 19 */
't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', /* Enter */
0, /* Control */
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 39 */
'\'', '`', 0, /* Left shift */
'\\', 'z', 'x', 'c', 'v', 'b', 'n', /* 49 */
'm', ',', '.', '/', 0, /* Right shift */
'*', 0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
0, /* 59 - F1 */
0, /* F2 */
0, /* F3 */
0, /* F4 */
0, /* F5 */
0, /* F6 */
0, /* F7 */
0, /* F8 */
0, /* F9 */
0, /* F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
0, /* Home */
0, /* Up Arrow */
0, /* Page Up */
'-', 0, /* Left Arrow */
0, 0, /* Right Arrow */
'+', 0, /* 79 - End */
0, /* Down Arrow */
0, /* Page Down */
0, /* Insert */
0, /* Delete */
0, 0, 0, 0, /* F11 */
0, /* F12 */
0, /* NULL */
};
static char en_chars_shifted[] = {
0, 27, '!', '@', '#', '$', '%', '^', '&', '*', /* 9 */
'(', ')', '_', '+', '\b', /* Backspace */
'\t', /* Tab */
'Q', 'W', 'E', 'R', /* 19 */
'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', /* Enter */
0, /* 29 - Control */
'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* 39 */
'"', '~', 0, /* Left shift */
'|', 'Z', 'X', 'C', 'V', 'B', 'N', /* 49 */
'M', '<', '>', '?', 0, /* Right shift */
'*', 0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
0, /* 59 - F1 */
0, /* F2 */
0, /* F3 */
0, /* F4 */
0, /* F5 */
0, /* F6 */
0, /* F7 */
0, /* F8 */
0, /* F9 */
0, /* F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
0, /* Home */
0, /* Up Arrow */
0, /* Page Up */
'-', 0, /* Left Arrow */
0, 0, /* Right Arrow */
'+', 0, /* 79 - End */
0, /* Down Arrow */
0, /* Page Down */
0, /* Insert */
0, /* Delete */
0, 0, 0, 0, /* F11 */
0, /* F12 */
0, /* NULL */
};
static char ru_chars_lower[] = {
0, 27, '1', '2', '3', '4', '5', '6', '7', '8', /* 9 */
'9', '0', '-', '=', '\b', /* Backspace */
'\t', /* Tab */
'й', 'ц', 'у', 'к', /* 19 */
'е', 'н', 'г', 'ш', 'щ', 'з', 'х', 'ъ', '\n', /* Enter */
0, /* Control */
'ф', 'ы', 'в', 'а', 'п', 'р', 'о', 'л', 'д', 'ж', /* 39 */
'э', 'ё', 0, /* Left shift */
'\\', 'я', 'ч', 'с', 'м', 'и', 'т', /* 49 */
'ь', 'б', 'ю', '.', 0, /* Right shift */
'*', 0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
0, /* 59 - F1 */
0, /* F2 */
0, /* F3 */
0, /* F4 */
0, /* F5 */
0, /* F6 */
0, /* F7 */
0, /* F8 */
0, /* F9 */
0, /* F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
0, /* Home */
0, /* Up Arrow */
0, /* Page Up */
'-', 0, /* Left Arrow */
0, 0, /* Right Arrow */
'+', 0, /* 79 - End */
0, /* Down Arrow */
0, /* Page Down */
0, /* Insert */
0, /* Delete */
0, 0, 0, 0, /* F11 */
0, /* F12 */
0, /* NULL */
};
static char ru_chars_shifted[] = {
0, 27, '!', '\"', '№', ';', '%', ':', '?', '*', /* 9 */
'(', ')', '_', '+', '\b', /* Backspace */
'\t', /* Tab */
'Й', 'Ц', 'У', 'К', /* 19 */
'Е', 'Н', 'Г', 'Ш', 'Щ', 'З', 'Х', 'Ъ', '\n', /* Enter */
0, /* 29 - Control */
'Ф', 'Ы', 'В', 'А', 'П', 'Р', 'О', 'Л', 'Д', 'Ж', /* 39 */
'Э', 'Ё', 0, /* Left shift */
'\\', 'Я', 'Ч', 'С', 'М', 'И', 'Т', /* 49 */
'Ь', 'Б', 'Ю', ',', 0, /* Right shift */
'*', 0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
0, /* 59 - F1 */
0, /* F2 */
0, /* F3 */
0, /* F4 */
0, /* F5 */
0, /* F6 */
0, /* F7 */
0, /* F8 */
0, /* F9 */
0, /* F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
0, /* Home */
0, /* Up Arrow */
0, /* Page Up */
'-', 0, /* Left Arrow */
0, 0, /* Right Arrow */
'+', 0, /* 79 - End */
0, /* Down Arrow */
0, /* Page Down */
0, /* Insert */
0, /* Delete */
0, 0, 0, 0, /* F11 */
0, /* F12 */
0, /* NULL */
};

131
modules/ps2/main.c
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@ -1,5 +1,12 @@
#include "keymap.h"
#include <system.h>
static uint8_t current_state;
static bool kbd_free = false;
static int ru = 1;
static char c_char = '\0';
static key_event_t keyboard_buffer;
static inline void virt_exit( ) {
fb_printf("Выход для Bochs\n");
outw(0xB004, 0x2000);
@ -14,41 +21,137 @@ static inline void virt_exit( ) {
outw(0x600, 0x34);
}
static void handler( ) {
fb_printf("Получено прерывание, обработка\n");
static void wait_irq( ) {
while (!kbd_free) { asm volatile("pause"); }
kbd_free = false;
}
static char getc( ) {
wait_irq( );
return c_char;
}
static void *__get_func(uint64_t func) {
switch (func) {
case 0: return wait_irq;
case 1: return getc;
default: return NULL;
}
}
static uint8_t keyboard_to_ascii(uint8_t key) {}
static void after_interrupt( ) {
uint8_t status = inb(0x61) | 1;
outb(0x61, status);
}
static int is_shift(uint8_t scancode) {
switch (scancode) {
case 0x2A: // Левый SHIFT
return 1;
case 0x36: // Правый SHIFT
return 1;
case 0xAA: // Левый SHIFT отпущен
return -1;
case 0xB6: // Правый SHIFT отпущен
return -1;
default: // Другой символ
return 0;
}
}
static int is_ctrl(uint8_t scancode) {
if (current_state == PREFIX_STATE) {
switch (scancode) {
case 0x1D: // Правый CTRL
return 1;
case 0x9D: // Правый CTRL отпущен
return -1;
default: // Другой символ
return 0;
}
}
switch (scancode) {
case 0x1D: // Левый CTRL
return 1;
case 0x9D: // Левый CTRL отпущен
return -1;
default: // Другой символ
return 0;
}
}
static void handler( ) {
while (!(inb(0x64) & 1)) { asm volatile("pause"); }
uint64_t byte = inb(0x60);
uint8_t scancode = inb(0x60);
char c = ' \0';
if (byte == 0) { return; }
if (scancode == 0xE0) {
current_state = PREFIX_STATE;
after_interrupt( );
return;
}
fb_printf("Символ: %c, %u, %x\n", byte, byte, byte);
if (scancode < 0) {
after_interrupt( );
return;
}
switch (byte) {
if (is_shift(scancode) != 0) {
keyboard_buffer->shift_pressed = is_shift(scancode);
after_interrupt( );
return;
}
if (is_ctrl(scancode) != 0) {
keyboard_buffer->ctrl_pressed = is_ctrl(scancode);
after_interrupt( );
return;
}
if (current_state == PREFIX_STATE) { current_state = NORMAL_STATE; }
if (ru) {
if (keyboard_buffer.shift_pressed) {
c = ru_chars_shifted[scancode];
} else {
c = ru_chars_lower[scancode];
}
} else {
if (keyboard_buffer.shift_pressed) {
c = en_chars_shifted[scancode];
} else {
c = en_chars_lower[scancode];
}
}
c_char = c;
kbd_free = true;
switch (scancode) {
case 0x01: virt_exit( ); break; // Клавиша "ESCAPE"
case 0x4F: // Клавиша "END"
asm volatile("int $32");
break;
default: break;
}
uint8_t status = inb(0x61) | 1;
outb(0x61, status);
after_interrupt( );
}
module_info_t __attribute__((section(".minit"))) init(env_t *env) {
init_env(env);
current_state = NORMAL_STATE;
return (module_info_t){ .name = (char *)"[KEYBOARD]",
.message = (char *)"PS/2 драйвер",
.type = 0,
.data_size = 0,
.data = (void *)0,
.data_size = MAX_KEY_BUFFER_SIZE,
.data = (void *)&keyboard_buffer,
.err_code = 0,
.module_id = 0,
.irq = 33,
.irq_handler = handler,
.get_func = 0 };
.get_func = __get_func };
}

18
modules/ps2/special.h Normal file
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@ -0,0 +1,18 @@
#include <system.h>
#define MAX_KEY_BUFFER_SIZE 1
#define NORMAL_STATE 0
#define PREFIX_STATE 1
typedef struct {
uint8_t code;
bool ctrl_pressed;
bool alt_pressed;
bool shift_pressed;
bool sys_menu_pressed;
} key_event_t;
typedef struct {
uint8_t code;
uint8_t c;
} keyboard_char_t;