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https://github.com/Mathewnd/Astral.git
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Matheus
135 lines
3.0 KiB
C
135 lines
3.0 KiB
C
#include <kernel/console.h>
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#include <mutex.h>
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#include <ringbuffer.h>
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#include <logging.h>
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#include <kernel/term.h>
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#include <kernel/devfs.h>
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#include <errno.h>
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#include <kernel/keyboard.h>
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#include <termios.h>
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#include <kernel/poll.h>
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#include <kernel/tty.h>
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#include <kernel/init.h>
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static mutex_t writemutex;
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static thread_t *thread;
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static tty_t *tty;
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size_t console_write(char *str, size_t count) {
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MUTEX_ACQUIRE(&writemutex);
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term_write(str, count);
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MUTEX_RELEASE(&writemutex);
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return count;
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}
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size_t console_ttywrite(void *internal, char *str, size_t count) {
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return console_write(str, count);
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}
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void console_putc(char c) {
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if (c == '\n')
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console_write("\n\r", 2);
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else
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console_write(&c, 1);
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}
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// taken from https://en.wikipedia.org/wiki/ANSI_escape_code#Terminal_input_sequences
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#define HOME_STR "\e[1~"
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#define INSERT_STR "\e[2~"
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#define DELETE_STR "\e[3~"
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#define END_STR "\e[4~"
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#define PGUP_STR "\e[5~"
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#define PGDN_STR "\e[6~"
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#define UP_STR "\e[A"
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#define DOWN_STR "\e[B"
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#define RIGHT_STR "\e[C"
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#define LEFT_STR "\e[D"
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static void consolethread() {
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for (;;) {
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kbpacket_t packet;
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keyboard_wait(keyboard_console, &packet);
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if (packet.flags & KBPACKET_FLAGS_RELEASED)
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continue;
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if (packet.ascii) {
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// control characters
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if (packet.flags & (KBPACKET_FLAGS_LEFTCTRL | KBPACKET_FLAGS_RIGHTCTRL)) {
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if (!((packet.ascii >= 'a' && packet.ascii <= 'z') || (packet.ascii >= 'A' && packet.ascii <= '\\')))
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continue;
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packet.ascii = packet.ascii >= 'a' ? packet.ascii - 0x60 : packet.ascii - 0x40;
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}
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tty_process(tty, packet.ascii);
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} else {
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// no ascii for key but we can send in a escape sequence for it
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char *target = NULL;
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switch (packet.keycode) {
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case KEYCODE_HOME:
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target = HOME_STR;
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break;
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case KEYCODE_INSERT:
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target = INSERT_STR;
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break;
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case KEYCODE_DELETE:
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target = DELETE_STR;
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break;
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case KEYCODE_END:
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target = END_STR;
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break;
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case KEYCODE_PAGEUP:
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target = PGUP_STR;
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break;
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case KEYCODE_PAGEDOWN:
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target = PGDN_STR;
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break;
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case KEYCODE_UP:
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target = UP_STR;
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break;
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case KEYCODE_DOWN:
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target = DOWN_STR;
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break;
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case KEYCODE_RIGHT:
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target = RIGHT_STR;
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break;
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case KEYCODE_LEFT:
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target = LEFT_STR;
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break;
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default:
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continue;
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}
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size_t len = strlen(target);
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for (int i = 0; i < len; ++i)
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tty_process(tty, target[i]);
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}
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}
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}
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void console_init() {
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MUTEX_INIT(&writemutex);
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thread = sched_newthread(consolethread, PAGE_SIZE * 16, 0, NULL, NULL);
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__assert(thread);
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sched_queue(thread);
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tty = tty_create("console", console_ttywrite, NULL, NULL, NULL, NULL);
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__assert(tty);
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size_t x, y, fbx, fby;
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term_getsize(&x, &y, &fbx, &fby);
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tty->winsize.ws_col = x;
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tty->winsize.ws_row = y;
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tty->winsize.ws_xpixel = fbx;
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tty->winsize.ws_ypixel = fby;
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logging_sethook(console_putc);
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}
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INIT_ROUTINE_DEFINE(console, INIT_ROUTINE_FLAGS_NONE, console_init, scheduler, keyboard);
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