1 files changed, 194 insertions, 0 deletions
diff --git a/app/include/zmk/hid.h b/app/include/zmk/hid.h
new file mode 100644
index 0000000..7e3560d
--- /dev/null
+++ b/app/include/zmk/hid.h
@@ -0,0 +1,194 @@
+#pragma once
+
+#include <usb/usb_device.h>
+#include <usb/class/usb_hid.h>
+
+#include <dt-bindings/zmk/keys.h>
+
+#include <zmk/keys.h>
+
+#define COLLECTION_REPORT 0x03
+
+#define ZMK_HID_MAX_KEYCODE KC_APP
+
+static const u8_t zmk_hid_report_desc[] = {
+    /* USAGE_PAGE (Generic Desktop) */
+    HID_GI_USAGE_PAGE,
+    USAGE_GEN_DESKTOP,
+    /* USAGE (Keyboard) */
+    HID_LI_USAGE,
+    USAGE_GEN_DESKTOP_KEYBOARD,
+    /* COLLECTION (Application) */
+    HID_MI_COLLECTION,
+    COLLECTION_APPLICATION,
+    /* REPORT ID (1) */
+    HID_GI_REPORT_ID,
+    0x01,
+    /* USAGE_PAGE (Keypad) */
+    HID_GI_USAGE_PAGE,
+    USAGE_GEN_DESKTOP_KEYPAD,
+    /* USAGE_MINIMUM (Keyboard LeftControl) */
+    HID_LI_USAGE_MIN(1),
+    0xE0,
+    /* USAGE_MAXIMUM (Keyboard Right GUI) */
+    HID_LI_USAGE_MAX(1),
+    0xE7,
+    /* LOGICAL_MINIMUM (0) */
+    HID_GI_LOGICAL_MIN(1),
+    0x00,
+    /* LOGICAL_MAXIMUM (1) */
+    HID_GI_LOGICAL_MAX(1),
+    0x01,
+
+    /* REPORT_SIZE (1) */
+    HID_GI_REPORT_SIZE,
+    0x01,
+    /* REPORT_COUNT (8) */
+    HID_GI_REPORT_COUNT,
+    0x08,
+    /* INPUT (Data,Var,Abs) */
+    HID_MI_INPUT,
+    0x02,
+
+    /* USAGE_PAGE (Keypad) */
+    HID_GI_USAGE_PAGE,
+    USAGE_GEN_DESKTOP_KEYPAD,
+    /* LOGICAL_MINIMUM (0) */
+    HID_GI_LOGICAL_MIN(1),
+    0x00,
+    /* LOGICAL_MAXIMUM (1) */
+    HID_GI_LOGICAL_MAX(1),
+    0x01,
+    /* USAGE_MINIMUM (Reserved) */
+    HID_LI_USAGE_MIN(1),
+    0x00,
+    /* USAGE_MAXIMUM (Keyboard Application) */
+    HID_LI_USAGE_MAX(1),
+    ZMK_HID_MAX_KEYCODE,
+    /* REPORT_SIZE (8) */
+    HID_GI_REPORT_SIZE,
+    0x01,
+    /* REPORT_COUNT (6) */
+    HID_GI_REPORT_COUNT,
+    ZMK_HID_MAX_KEYCODE + 1,
+    /* INPUT (Data,Ary,Abs) */
+    HID_MI_INPUT,
+    0x02,
+    /* USAGE_PAGE (Keypad) */
+    HID_GI_USAGE_PAGE,
+    USAGE_GEN_DESKTOP_KEYPAD,
+    /* REPORT_SIZE (8) */
+    HID_GI_REPORT_SIZE,
+    0x02,
+    /* REPORT_COUNT (6) */
+    HID_GI_REPORT_COUNT,
+    0x01,
+    /* INPUT (Cnst,Var,Abs) */
+    HID_MI_INPUT,
+    0x03,
+    /* END_COLLECTION */
+    HID_MI_COLLECTION_END,
+    /* USAGE_PAGE (Consumer) */
+    HID_GI_USAGE_PAGE,
+    0x0C,
+    /* USAGE (Consumer Control) */
+    HID_LI_USAGE,
+    0x01,
+    /* Consumer Page */
+    HID_MI_COLLECTION,
+    COLLECTION_APPLICATION,
+    /* REPORT ID (1) */
+    HID_GI_REPORT_ID,
+    0x02,
+    /* USAGE_PAGE (Consumer) */
+    HID_GI_USAGE_PAGE,
+    0x0C,
+    /* LOGICAL_MINIMUM (0) */
+    HID_GI_LOGICAL_MIN(1),
+    0x00,
+    /* LOGICAL_MAXIMUM (1) */
+    HID_GI_LOGICAL_MAX(1),
+    0x01,
+    /* USAGE (Scan Next Track) */
+    HID_LI_USAGE,
+    0xB5,
+    /* USAGE (Scan Previous Track) */
+    HID_LI_USAGE,
+    0xB6,
+    /* USAGE (Stop) */
+    HID_LI_USAGE,
+    0xB7,
+    /* USAGE (Eject) */
+    HID_LI_USAGE,
+    0xB8,
+    /* USAGE (Media Play/Pause) */
+    HID_LI_USAGE,
+    0xCD,
+    /* USAGE (Mute) */
+    HID_LI_USAGE,
+    0xE2,
+    /* USAGE (Volume Increment) */
+    HID_LI_USAGE,
+    0xE9,
+    /* USAGE (Volume Decrement) */
+    HID_LI_USAGE,
+    0xEA,
+    /* INPUT (Data,Ary,Abs) */
+    /* REPORT_SIZE (1) */
+    HID_GI_REPORT_SIZE,
+    0x01,
+    /* REPORT_COUNT (8) */
+    HID_GI_REPORT_COUNT,
+    0x08,
+    HID_MI_INPUT,
+    0x02,
+    /* END COLLECTION */
+    HID_MI_COLLECTION_END,
+};
+
+// struct zmk_hid_boot_report
+// {
+//     u8_t modifiers;
+//     u8_t _unused;
+//     u8_t keys[6];
+// } __packed;
+
+struct zmk_hid_keypad_report_body
+{
+    zmk_mod_flags modifiers;
+    u8_t keys[13];
+} __packed;
+
+struct zmk_hid_keypad_report
+{
+    u8_t report_id;
+    struct zmk_hid_keypad_report_body body;
+} __packed;
+
+struct zmk_hid_consumer_report_body
+{
+    u8_t keys;
+} __packed;
+
+struct zmk_hid_consumer_report
+{
+    u8_t report_id;
+    struct zmk_hid_consumer_report_body body;
+} __packed;
+
+enum zmk_hid_report_changes
+{
+    None = 0x00,
+    Keypad = (0x01 << 0x00),
+    Consumer = (0x01 << 0x01)
+};
+
+int zmk_hid_register_mod(zmk_mod modifier);
+int zmk_hid_unregister_mod(zmk_mod modifier);
+int zmk_hid_register_mods(zmk_mod_flags modifiers);
+int zmk_hid_unregister_mods(zmk_mod_flags modifiers);
+enum zmk_hid_report_changes zmk_hid_press_key(zmk_key key);
+enum zmk_hid_report_changes zmk_hid_release_key(zmk_key key);
+
+struct zmk_hid_keypad_report *zmk_hid_get_keypad_report();
+struct zmk_hid_consumer_report *zmk_hid_get_consumer_report();