tty: support '\n', fix API to putc and puts

1 files changed, 14 insertions, 8 deletions

diff --git a/kernel/tty.c b/kernel/tty.c
index 4cb2cf1..628a21e 100644
--- a/kernel/tty.c
+++ b/kernel/tty.c
@@ -40,7 +40,7 @@ static inline uint16_t make_vgaentry(char c, uint8_t color)
     return ((uint16_t) c) | (((uint16_t) color) << VGA_COLOR_SHIFT);
 }
 
-static inline void tty_putentryat(char c, uint8_t color, size_t x, size_t y)
+static inline void tty_putc_at(char c, uint8_t color, size_t x, size_t y)
 {
     const size_t i = y * VGA_WIDTH + x;
     tty_buffer[i] = make_vgaentry(c, color);
@@ -51,21 +51,27 @@ void tty_setcolor(uint8_t color)
     tty_color = color;
 }
 
-void tty_putchar(char c)
+void tty_putc(char c)
 {
-    tty_putentryat(c, tty_color, tty_col, tty_row);
-    if (++tty_col == VGA_WIDTH) {
+    if (c == '\n')
+    {
         tty_col = 0;
-        if (++tty_row == VGA_HEIGHT) {
-            tty_row = 0;
+        tty_row++;
+    } else {
+        tty_putc_at(c, tty_color, tty_col, tty_row);
+        if (++tty_col == VGA_WIDTH) {
+            tty_col = 0;
+            if (++tty_row == VGA_HEIGHT) {
+                tty_row = 0;
+            }
         }
     }
 }
 
-void tty_writestring(const char* data)
+void tty_puts(const char* data)
 {
     for (const char* p = data; *p != 0; p++)
-        tty_putchar(*p);
+        tty_putc(*p);
 }
 
 void tty_init()