refactor(hid): Refactor consumer report to a configurable size

app/include/zmk/hid.h

@@ -15,6 +15,8 @@
 
 #define ZMK_HID_KEYPAD_NKRO_SIZE 6
 
+#define ZMK_HID_CONSUMER_NKRO_SIZE 6
+
 static const u8_t zmk_hid_report_desc[] = {
     /* USAGE_PAGE (Generic Desktop) */
     HID_GI_USAGE_PAGE,
@@ -111,9 +113,9 @@ static const u8_t zmk_hid_report_desc[] = {
     /* REPORT_SIZE (8) */
     HID_GI_REPORT_SIZE,
     0x08,
-    /* REPORT_COUNT (8) */
+    /* REPORT_COUNT (ZMK_HID_CONSUMER_NKRO_SIZE) */
     HID_GI_REPORT_COUNT,
-    0x06,
+    ZMK_HID_CONSUMER_NKRO_SIZE,
     HID_MI_INPUT,
     0x00,
     /* END COLLECTION */
@@ -138,7 +140,7 @@ struct zmk_hid_keypad_report {
 } __packed;
 
 struct zmk_hid_consumer_report_body {
-    u8_t keys[6];
+    u8_t keys[ZMK_HID_CONSUMER_NKRO_SIZE];
 } __packed;
 
 struct zmk_hid_consumer_report {

app/src/hid.c

@@ -12,8 +12,7 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
 static struct zmk_hid_keypad_report kp_report = {.report_id = 1,
                                                  .body = {.modifiers = 0, .keys = {0}}};
 
-static struct zmk_hid_consumer_report consumer_report = {.report_id = 2,
-                                                         .body = {.keys = {0, 0, 0, 0, 0, 0}}};
+static struct zmk_hid_consumer_report consumer_report = {.report_id = 2, .body = {.keys = {0}}};
 
 #define _TOGGLE_MOD(mod, state)                                                                    \
     if (modifier > MOD_RGUI) {                                                                     \
@@ -35,8 +34,6 @@ int zmk_hid_unregister_mods(zmk_mod_flags modifiers) {
     return 0;
 }
 
-#define MAX_KEYS 6
-
 #define TOGGLE_KEYPAD(match, val)                                                                  \
     for (int idx = 0; idx < ZMK_HID_KEYPAD_NKRO_SIZE; idx++) {                                     \
         if (kp_report.body.keys[idx] != match) {                                                   \
@@ -47,7 +44,7 @@ int zmk_hid_unregister_mods(zmk_mod_flags modifiers) {
     }
 
 #define TOGGLE_CONSUMER(match, val)                                                                \
-    for (int idx = 0; idx < MAX_KEYS; idx++) {                                                     \
+    for (int idx = 0; idx < ZMK_HID_CONSUMER_NKRO_SIZE; idx++) {                                   \
         if (consumer_report.body.keys[idx] != match) {                                             \
             continue;                                                                              \
         }                                                                                          \