From d4bfd14f057fdaa20cda84bf7e667ac3d7ec5828 Mon Sep 17 00:00:00 2001
From: Trent Rand <contact@trentrand.com>
Date: Sat, 4 May 2024 12:12:24 -0700
Subject: [PATCH] Add support for PMW3360 trackball sensor

---
 .../dactyl_manuform_5x7.keymap                |  1 +
 .../dactyl_manuform_5x7_right.overlay         | 41 +++++++++++++++++++
 config/dactyl_manuform_5x7.conf               |  5 ++-
 config/west.yml                               |  9 +++-
 4 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7.keymap b/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7.keymap
index 4a873b6..706c060 100644
--- a/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7.keymap
+++ b/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7.keymap
@@ -1,4 +1,5 @@
 #include <behaviors.dtsi>
+#include <behaviors/mouse_keys.dtsi>
 #include <dt-bindings/zmk/keys.h>
 #include <dt-bindings/zmk/mouse.h>
 #include <dt-bindings/zmk/bt.h>
diff --git a/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7_right.overlay b/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7_right.overlay
index 2fc8acd..f7ff851 100644
--- a/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7_right.overlay
+++ b/boards/shields/dactyl_manuform_5x7/dactyl_manuform_5x7_right.overlay
@@ -23,3 +23,44 @@
         , <&gpio0  9 GPIO_ACTIVE_HIGH>
         ;
 };
+
+&pinctrl {
+    spi0_default: spi0_default {
+        group1 {
+            psels = <NRF_PSEL(SPIM_SCK, 0, 22)>,
+                <NRF_PSEL(SPIM_MOSI, 0, 24)>,
+                <NRF_PSEL(SPIM_MISO, 1, 0)>;
+        };
+    };
+
+    spi0_sleep: spi0_sleep {
+        group1 {
+            psels = <NRF_PSEL(SPIM_SCK, 0, 22)>,
+                <NRF_PSEL(SPIM_MOSI, 0, 24)>,
+                <NRF_PSEL(SPIM_MISO, 1, 0)>;
+            low-power-enable;
+        };
+    };
+};
+
+&spi0 {
+    status = "okay";
+    compatible = "nordic,nrf-spim";
+    pinctrl-0 = <&spi0_default>;
+    pinctrl-1 = <&spi0_sleep>;
+    pinctrl-names = "default", "sleep";
+    cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
+
+    trackball: trackball@0 {
+        status = "okay";
+        compatible = "pixart,pmw3360";
+        reg = <0>;
+        spi-max-frequency = <2000000>;
+        irq-gpios = <&gpio0 17 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+
+        /*   optional features   */
+        // snipe-layers = <1>;
+        // scroll-layers = <2 3>;
+        // automouse-layer = <4>;
+    };
+};
diff --git a/config/dactyl_manuform_5x7.conf b/config/dactyl_manuform_5x7.conf
index 31007d8..0fd8887 100644
--- a/config/dactyl_manuform_5x7.conf
+++ b/config/dactyl_manuform_5x7.conf
@@ -1,5 +1,8 @@
 CONFIG_ZMK_SLEEP=y
 CONFIG_ZMK_IDLE_SLEEP_TIMEOUT=900000
 CONFIG_ZMK_BATTERY_REPORT_INTERVAL=900
-CONFIG_ZMK_MOUSE=y
 CONFIG_ZMK_BLE_EXPERIMENTAL_CONN=y
+CONFIG_SPI=y
+CONFIG_INPUT=y
+CONFIG_ZMK_MOUSE=y
+CONFIG_PMW3360=y
diff --git a/config/west.yml b/config/west.yml
index 379d291..a770b02 100644
--- a/config/west.yml
+++ b/config/west.yml
@@ -1,11 +1,16 @@
 manifest:
   remotes:
     - name: zmkfirmware
-      url-base: https://github.com/zmkfirmware
+      url-base: https://github.com/petejohanson
+    - name: trackball-driver
+      url-base: https://github.com/bigtree908
   projects:
     - name: zmk
       remote: zmkfirmware
-      revision: main
+      revision: feat/pointers-move-scroll
       import: app/west.yml
+    - name: pmw3360
+      remote: trackball-driver
+      revision: pmw3360
   self:
     path: config