From ce703f1bf281b409c4a02402c9c963acca24b93c Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Wed, 13 Feb 2013 11:20:47 +0900
Subject: [PATCH] Change keymap API

---
 common/keymap.c | 72 ++++++++++++++++++++++++++++++-------------------
 common/keymap.h | 11 +++++++-
 2 files changed, 54 insertions(+), 29 deletions(-)

diff --git a/common/keymap.c b/common/keymap.c
index 8302c270..2782ea9d 100644
--- a/common/keymap.c
+++ b/common/keymap.c
@@ -17,6 +17,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "keymap.h"
 #include "report.h"
 #include "keycode.h"
+#include "action.h"
 
 
 /* layer */
@@ -24,46 +25,61 @@ uint8_t default_layer = 0;
 uint8_t current_layer = 0;
 
 
+action_t keymap_keycode_to_action(uint8_t keycode)
+{
+    action_t action;
+    switch (keycode) {
+        case KC_A ... KC_EXSEL:
+            action.code = ACTION_KEY(keycode);
+            break;
+        case KC_LCTRL ... KC_LGUI:
+            action.code = ACTION_LMOD(keycode);
+            break;
+        case KC_RCTRL ... KC_RGUI:
+            action.code = ACTION_RMOD(keycode);
+            break;
+        case KC_SYSTEM_POWER ... KC_SYSTEM_WAKE:
+            action.code = ACTION_USAGE_SYSTEM(KEYCODE2SYSTEM(keycode));
+            break;
+        case KC_AUDIO_MUTE ... KC_WWW_FAVORITES:
+            action.code = ACTION_USAGE_CONSUMER(KEYCODE2CONSUMER(keycode));
+            break;
+        case KC_MS_UP ... KC_MS_ACCEL2:
+            action.code = ACTION_MOUSEKEY(keycode);
+            break;
+        case KC_TRNS:
+            action.code = ACTION_TRANSPARENT;
+            break;
+        default:
+            action.code = ACTION_NO;
+            break;
+    }
+    return action;
+}
+
 #ifndef NO_LEGACY_KEYMAP_SUPPORT
 /* legacy support with weak reference */
 __attribute__ ((weak))
 action_t keymap_get_action(uint8_t layer, uint8_t row, uint8_t col)
 {
     /* convert from legacy keycode to action */
-    uint8_t key = keymap_get_keycode(layer, row, col);
+    uint8_t keycode = keymap_get_keycode(layer, row, col);
     action_t action;
-    switch (key) {
-        case KC_A ... KC_EXSEL:
-            action.code = ACTION_KEY(key);
-            break;
-        case KC_LCTRL ... KC_LGUI:
-            action.code = ACTION_LMOD(key);
-            break;
-        case KC_RCTRL ... KC_RGUI:
-            action.code = ACTION_RMOD(key);
-            break;
-        case KC_SYSTEM_POWER ... KC_SYSTEM_WAKE:
-            action.code = ACTION_USAGE_SYSTEM(KEYCODE2SYSTEM(key));
-            break;
-        case KC_AUDIO_MUTE ... KC_WWW_FAVORITES:
-            action.code = ACTION_USAGE_CONSUMER(KEYCODE2CONSUMER(key));
-            break;
-        case KC_MS_UP ... KC_MS_ACCEL2:
-            action.code = ACTION_MOUSEKEY(key);
-            break;
+    switch (keycode) {
         case KC_FN0 ... KC_FN31:
             {
-                uint8_t layer = keymap_fn_layer(FN_INDEX(key));
-                uint8_t code = keymap_fn_keycode(FN_INDEX(key));
-                action.code = ACTION_LAYER_SET_TAP_KEY(layer, code);
+                uint8_t layer = keymap_fn_layer(FN_INDEX(keycode));
+                uint8_t key = keymap_fn_keycode(FN_INDEX(keycode));
+                if (key) {
+                    action.code = ACTION_LAYER_SET_TAP_KEY(layer, key);
+                } else {
+                    action.code = ACTION_LAYER_SET_MOMENTARY(layer);
+                }
             }
-            break;
-        case KC_NO ... KC_UNDEFINED:
+            return action;
         default:
-            action.code = ACTION_NO;
-            break;
+            return keymap_keycode_to_action(keycode);
     }
-    return action;
 }
 #endif
 
diff --git a/common/keymap.h b/common/keymap.h
index 30d73f79..ee36eab8 100644
--- a/common/keymap.h
+++ b/common/keymap.h
@@ -30,14 +30,23 @@ extern uint8_t current_layer;
 extern uint8_t default_layer;
 
 
+/* translates key_t to keycode */
+uint8_t keymap_key_to_keycode(uint8_t layer, key_t key);
+/* translates keycode to action */
+action_t keymap_keycode_to_action(uint8_t keycode);
+/* translates Fn keycode to action */
+action_t keymap_fn_to_action(uint8_t keycode);
+
+
 /* action for key */
-// TODO: should use struct key_t?
+// TODO: should use struct key_t? move to action.h?
 action_t keymap_get_action(uint8_t layer, uint8_t row, uint8_t col);
 
 /* user defined special function */
 void keymap_call_function(keyrecord_t *record, uint8_t id, uint8_t opt);
 
 
+
 #ifndef NO_LEGACY_KEYMAP_SUPPORT
 /* keycode of key */
 uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col);