X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/9440be3a5115a91dcdf8dff05a361cac4b6cea29..a0655e5d30f3cdc73b1aaaa4825d8fae9f92ce4a:/lunaix-os/kernel/tty/tty.c diff --git a/lunaix-os/kernel/tty/tty.c b/lunaix-os/kernel/tty/tty.c index 4a20a77..c779ed5 100644 --- a/lunaix-os/kernel/tty/tty.c +++ b/lunaix-os/kernel/tty/tty.c @@ -2,6 +2,7 @@ #include #include #include +#include #define TTY_WIDTH 80 #define TTY_HEIGHT 25 @@ -11,11 +12,17 @@ static vga_attribute* tty_vga_buffer = (vga_attribute*)VGA_BUFFER_PADDR; static vga_attribute tty_theme_color = VGA_COLOR_BLACK; static uint32_t tty_x = 0; -static uint16_t tty_y = 0; +static uint32_t tty_y = 0; void tty_init(void* vga_buf) { tty_vga_buffer = (vga_attribute*)vga_buf; tty_clear(); + + io_outb(0x3D4, 0x0A); + io_outb(0x3D5, (io_inb(0x3D5) & 0xC0) | 13); + + io_outb(0x3D4, 0x0B); + io_outb(0x3D5, (io_inb(0x3D5) & 0xE0) | 15); } void tty_set_buffer(void* vga_buf) { @@ -60,6 +67,22 @@ tty_put_char(char chr) } } +void tty_sync_cursor() { + tty_set_cursor(tty_x, tty_y); +} + + +void tty_set_cursor(uint8_t x, uint8_t y) { + if (x >= TTY_WIDTH || y >= TTY_HEIGHT) { + x = y = 0; + } + uint32_t pos = y * TTY_WIDTH + x; + io_outb(0x3D4, 14); + io_outb(0x3D5, pos / 256); + io_outb(0x3D4, 15); + io_outb(0x3D5, pos % 256); +} + void tty_put_str(char* str) { @@ -67,6 +90,7 @@ tty_put_str(char* str) tty_put_char(*str); str++; } + tty_sync_cursor(); } void