Add backlight to reverie

keyboards/cannonkeys/reverie/config.h

@@ -21,3 +21,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 500U
 
 #define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
+
+#define BACKLIGHT_PWM_DRIVER PWMD3
+#define BACKLIGHT_PWM_CHANNEL RP2040_PWM_CHANNEL_A

keyboards/cannonkeys/reverie/halconf.h

@@ -0,0 +1,8 @@
+// Copyright 2022 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_PWM TRUE
+
+#include_next <halconf.h>

keyboards/cannonkeys/reverie/keyboard.json

@@ -5,6 +5,7 @@
     "bootloader": "rp2040",
     "diode_direction": "COL2ROW",
     "features": {
+        "backlight": true,
         "bootmagic": true,
         "command": false,
         "console": false,
@@ -12,6 +13,12 @@
         "mousekey": true,
         "nkro": true
     },
+    "backlight": {
+        "breathing": true,
+        "breathing_period": 5,
+        "levels": 15,
+        "pin": "GP22"
+    },
     "indicators": {
         "caps_lock": "GP29",
         "on_state": 0

keyboards/cannonkeys/reverie/mcuconf.h

@@ -0,0 +1,9 @@
+// Copyright 2022 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef RP_PWM_USE_PWM3
+#define RP_PWM_USE_PWM3 TRUE