keyboard skeleton, skeleton, rcs, etc

1 files changed, 39 insertions, 0 deletions

diff --git a/src/kernel/keyb.c b/src/kernel/keyb.c
new file mode 100644
index 0000000..bae462a
--- /dev/null
+++ b/src/kernel/keyb.c
@@ -0,0 +1,39 @@
+/*
+Copyright 2019 Benji Dial
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+*/
+
+#include "serial.h"
+#include "vga.h"
+
+uint8_t get_char(bool echo) {
+  uint8_t ch = poll_port(COM2) ? read_byte(COM2) : 0;//TODO: from get_key
+  if (echo)
+    put_char(ch);
+  return ch;
+}
+
+uint32_t get_line(uint32_t max, uint8_t *buffer, bool echo) {
+  uint8_t *i = (uint8_t *)buffer;
+  while (i < (uint8_t *)buffer + max) {
+    if ((*i = get_char(echo)) == (uint8_t)'\n') {
+      *i = 0;
+      return i - (uint8_t *)buffer;
+    }
+    ++i;
+  }
+}
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