1 files changed, 93 insertions, 0 deletions
diff --git a/keyboard.c b/keyboard.c
new file mode 100644
index 000000000..6bf2b3a9e
--- /dev/null
+++ b/keyboard.c
@@ -0,0 +1,93 @@
+#include "usb_keycodes.h"
+#include "host.h"
+#include "led.h"
+#include "keyboard.h"
+#include "print.h"
+
+static report_keyboard_t report0;
+static report_keyboard_t report1;
+report_keyboard_t *keyboard_report = &report0;
+report_keyboard_t *keyboard_report_prev = &report1;
+
+
+void keyboard_set_led(uint8_t usb_led)
+{
+    led_set(usb_led);
+}
+
+void keyboard_send(void)
+{
+    host_keyboard_send(keyboard_report);
+}
+
+void keyboard_add_key(uint8_t code)
+{
+    int8_t i = 0;
+    int8_t empty = -1;
+    for (; i < REPORT_KEYS; i++) {
+        if (keyboard_report_prev->keys[i] == code) {
+            keyboard_report->keys[i] = code;
+            break;
+        }
+        if (empty == -1 && keyboard_report_prev->keys[i] == KB_NO && keyboard_report->keys[i] == KB_NO) {
+            empty = i;
+        }
+    }
+    if (i == REPORT_KEYS && empty != -1) {
+        keyboard_report->keys[empty] = code;
+    }
+}
+
+void keyboard_add_mod_bit(uint8_t mod)
+{
+    keyboard_report->mods |= mod;
+}
+
+void keyboard_set_mods(uint8_t mods)
+{
+    keyboard_report->mods = mods;
+}
+
+void keyboard_add_code(uint8_t code)
+{
+    if (IS_MOD(code)) {
+        keyboard_add_mod_bit(MOD_BIT(code));
+    } else {
+        keyboard_add_key(code);
+    }
+}
+
+void keyboard_swap_report(void)
+{
+    report_keyboard_t *tmp = keyboard_report_prev;
+    keyboard_report_prev = keyboard_report;
+    keyboard_report = tmp;
+}
+
+void keyboard_clear_report(void)
+{
+    keyboard_report->mods = 0;
+    for (int8_t i = 0; i < REPORT_KEYS; i++) {
+        keyboard_report->keys[i] = 0;
+    }
+}
+
+uint8_t keyboard_has_anykey(void)
+{
+    uint8_t cnt = 0;
+    for (int i = 0; i < REPORT_KEYS; i++) {
+        if (keyboard_report->keys[i])
+            cnt++;
+    }
+    return cnt;
+}
+
+uint8_t *keyboard_get_keys(void)
+{
+    return keyboard_report->keys;
+}
+
+uint8_t keyboard_get_mods(void)
+{
+    return keyboard_report->mods;
+}