4 files changed, 30 insertions, 16 deletions

diff --git a/tmk_core/common/keycode.h b/tmk_core/common/keycode.h
index 2f208c54e..54e9c322c 100644
--- a/tmk_core/common/keycode.h
+++ b/tmk_core/common/keycode.h
@@ -85,7 +85,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define KC_LCAP KC_LOCKING_CAPS
 #define KC_LNUM KC_LOCKING_NUM
 #define KC_LSCR KC_LOCKING_SCROLL
-#define KC_ERAS KC_ALT_ERASE,
+#define KC_ERAS KC_ALT_ERASE
 #define KC_CLR  KC_CLEAR
 /* Japanese specific */
 #define KC_ZKHK KC_GRAVE
diff --git a/tmk_core/protocol/lufa/descriptor.c b/tmk_core/protocol/lufa/descriptor.c
index 14d99b50b..feeea76df 100644
--- a/tmk_core/protocol/lufa/descriptor.c
+++ b/tmk_core/protocol/lufa/descriptor.c
@@ -143,10 +143,10 @@ const USB_Descriptor_HIDReport_Datatype_t PROGMEM ExtrakeyReport[] =
     HID_RI_USAGE(8, 0x80), /* System Control */
     HID_RI_COLLECTION(8, 0x01), /* Application */
         HID_RI_REPORT_ID(8, REPORT_ID_SYSTEM),
-        HID_RI_LOGICAL_MINIMUM(16, 0x0081),
-        HID_RI_LOGICAL_MAXIMUM(16, 0x00B7),
+        HID_RI_LOGICAL_MINIMUM(16, 0x0001),
+        HID_RI_LOGICAL_MAXIMUM(16, 0x0003),
         HID_RI_USAGE_MINIMUM(16, 0x0081), /* System Power Down */
-        HID_RI_USAGE_MAXIMUM(16, 0x00B7), /* System Display LCD Autoscale */
+        HID_RI_USAGE_MAXIMUM(16, 0x0083), /* System Wake Up */
         HID_RI_REPORT_SIZE(8, 16),
         HID_RI_REPORT_COUNT(8, 1),
         HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_ARRAY | HID_IOF_ABSOLUTE),
diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index dd78fe621..6dd5959dc 100644
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -732,7 +732,7 @@ static void send_system(uint16_t data)
 
     report_extra_t r = {
         .report_id = REPORT_ID_SYSTEM,
-        .usage = data
+        .usage = data - SYSTEM_POWER_DOWN + 1
     };
     Endpoint_SelectEndpoint(EXTRAKEY_IN_EPNUM);
 
@@ -1252,28 +1252,40 @@ void cc_callback(MidiDevice * device,
   // midi_send_cc(device, (chan + 1) % 16, num, val);
 }
 
+#ifdef API_SYSEX_ENABLE
 uint8_t midi_buffer[MIDI_SYSEX_BUFFER] = {0};
+#endif
 
 void sysex_callback(MidiDevice * device, uint16_t start, uint8_t length, uint8_t * data) {
     #ifdef API_SYSEX_ENABLE
         // SEND_STRING("\n");
         // send_word(start);
         // SEND_STRING(": ");
+        // Don't store the header
+        int16_t pos = start - 4;
         for (uint8_t place = 0; place < length; place++) {
             // send_byte(*data);
-            midi_buffer[start + place] = *data;
-            if (*data == 0xF7) {
-                // SEND_STRING("\nRD: ");
-                // for (uint8_t i = 0; i < start + place + 1; i++){
-                //     send_byte(midi_buffer[i]);
-                // SEND_STRING(" ");
-                // }
-                uint8_t * decoded = malloc(sizeof(uint8_t) * (sysex_decoded_length(start + place - 4)));
-                uint16_t decode_length = sysex_decode(decoded, midi_buffer + 4, start + place - 4);
-                process_api(decode_length, decoded);
+            if (pos >= 0) {
+                if (*data == 0xF7) {
+                    // SEND_STRING("\nRD: ");
+                    // for (uint8_t i = 0; i < start + place + 1; i++){
+                    //     send_byte(midi_buffer[i]);
+                    // SEND_STRING(" ");
+                    // }
+                    const unsigned decoded_length = sysex_decoded_length(pos);
+                    uint8_t decoded[API_SYSEX_MAX_SIZE];
+                    sysex_decode(decoded, midi_buffer, pos);
+                    process_api(decoded_length, decoded);
+                    return;
+                }
+                else if (pos >= MIDI_SYSEX_BUFFER) {
+                    return;
+                }
+                midi_buffer[pos] = *data;
             }
             // SEND_STRING(" ");
             data++;
+            pos++;
         }
     #endif
 }
diff --git a/tmk_core/protocol/lufa/lufa.h b/tmk_core/protocol/lufa/lufa.h
index b11854101..a049fd43c 100644
--- a/tmk_core/protocol/lufa/lufa.h
+++ b/tmk_core/protocol/lufa/lufa.h
@@ -70,7 +70,6 @@ typedef struct {
 #ifdef MIDI_ENABLE
   void MIDI_Task(void);
   MidiDevice midi_device;
-  #define MIDI_SYSEX_BUFFER 32 
 #endif
 
 #ifdef API_ENABLE
@@ -79,6 +78,9 @@ typedef struct {
 
 #ifdef API_SYSEX_ENABLE
   #include "api_sysex.h"
+  // Allocate space for encoding overhead.
+  //The header and terminator are not stored to save a few bytes of precious ram
+  #define MIDI_SYSEX_BUFFER (API_SYSEX_MAX_SIZE + API_SYSEX_MAX_SIZE / 7 + (API_SYSEX_MAX_SIZE % 7 ? 1 : 0))
 #endif
 
 // #if LUFA_VERSION_INTEGER < 0x120730