X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/1f37d39e678168ffc089bcde6f9ea203c4763550..1eeed1150149b63d6e49e033697454bc12b533b9:/lunaix-os/kernel/tty/tty.c diff --git a/lunaix-os/kernel/tty/tty.c b/lunaix-os/kernel/tty/tty.c index b491355..e5a913f 100644 --- a/lunaix-os/kernel/tty/tty.c +++ b/lunaix-os/kernel/tty/tty.c @@ -1,33 +1,48 @@ -#include #include -#include #include -#include #include #include -vga_attribute* tty_vga_buffer = (vga_attribute*)VGA_BUFFER_PADDR; +#include + +vga_attribute* tty_vga_buffer; vga_attribute tty_theme_color = VGA_COLOR_BLACK; -#define TTY_CLEAR \ - asm volatile("rep stosw" ::"D"(tty_vga_buffer), \ - "c"(TTY_HEIGHT * TTY_WIDTH), \ - "a"(tty_theme_color) \ +inline void +tty_clear() +{ + asm volatile("rep stosw" ::"D"(tty_vga_buffer), + "c"(TTY_HEIGHT * TTY_WIDTH), + "a"(tty_theme_color) : "memory"); +} void tty_init(void* vga_buf) { tty_vga_buffer = (vga_attribute*)vga_buf; - TTY_CLEAR + tty_clear(); - io_outb(0x3D4, 0x0A); - io_outb(0x3D5, (io_inb(0x3D5) & 0xC0) | 13); + port_wrbyte(0x3D4, 0x0A); + port_wrbyte(0x3D5, (port_rdbyte(0x3D5) & 0xC0) | 13); - io_outb(0x3D4, 0x0B); - io_outb(0x3D5, (io_inb(0x3D5) & 0xE0) | 15); + port_wrbyte(0x3D4, 0x0B); + port_wrbyte(0x3D5, (port_rdbyte(0x3D5) & 0xE0) | 15); +} + +void +tty_set_cursor(u8_t x, u8_t y) +{ + if (x >= TTY_WIDTH || y >= TTY_HEIGHT) { + x = y = 0; + } + u32_t pos = y * TTY_WIDTH + x; + port_wrbyte(0x3D4, 14); + port_wrbyte(0x3D5, pos / 256); + port_wrbyte(0x3D4, 15); + port_wrbyte(0x3D5, pos % 256); } void @@ -36,92 +51,44 @@ tty_set_theme(vga_attribute fg, vga_attribute bg) tty_theme_color = (bg << 4 | fg) << 8; } -size_t -tty_flush_buffer(char* data, size_t pos, size_t limit, size_t buf_size) +void +tty_flush_buffer(struct fifo_buf* buf) { int x = 0, y = 0; // Clear screen - TTY_CLEAR - - int state = 0; - int g[2] = { 0, 0 }; - vga_attribute current_theme = tty_theme_color; - while (1) { - size_t ptr = pos % buf_size; - if (pos == limit) { - break; - } - char chr = data[pos]; - if (state == 0 && chr == '\x033') { - state = 1; - } else if (state == 1 && chr == '[') { - state = 2; - } else if (state > 1) { - if ('0' <= chr && chr <= '9') { - g[state - 2] = (chr - '0') + g[state - 2] * 10; - } else if (chr == ';' && state == 2) { - state = 3; - } else { - if (g[0] == 39 && g[1] == 49) { - current_theme = tty_theme_color; - } else { - current_theme = (g[1] << 4 | g[0]) << 8; - } - g[0] = 0; - g[1] = 0; - state = 0; - } - } else { - state = 0; - switch (chr) { - case '\t': - x += 4; - break; - case '\n': - y++; - // fall through - case '\r': - x = 0; - break; - case '\x08': - x = x ? x - 1 : 0; - *(tty_vga_buffer + x + y * TTY_WIDTH) = - (current_theme | 0x20); - break; - default: - *(tty_vga_buffer + x + y * TTY_WIDTH) = - (current_theme | chr); - (x)++; - break; - } - - if (x >= TTY_WIDTH) { - x = 0; + tty_clear(); + + char chr; + while (fifo_readone_async(buf, (u8_t*)&chr)) { + switch (chr) { + case '\t': + x += 4; + break; + case '\n': y++; - } - if (y >= TTY_HEIGHT) { - y--; + // fall through + case '\r': + x = 0; + break; + default: + *(tty_vga_buffer + x + y * TTY_WIDTH) = + (tty_theme_color | chr); + (x)++; break; - } } - pos++; - } - tty_set_cursor(x, y); - return pos; -} -void -tty_set_cursor(uint8_t x, uint8_t y) -{ - if (x >= TTY_WIDTH || y >= TTY_HEIGHT) { - x = y = 0; + if (x >= TTY_WIDTH) { + x = 0; + y++; + } + if (y >= TTY_HEIGHT) { + y--; + break; + } } - 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); + + tty_set_cursor(x, y); } void