From c48f6c677b9768e872697844a558a0cf80e428de Mon Sep 17 00:00:00 2001
From: ReFil <31960031+ReFil@users.noreply.github.com>
Date: Tue, 27 Jun 2023 07:39:19 +0100
Subject: [PATCH] Further work

---
 app/drivers/sensor/gen4/gen4.c |  8 ++++++++
 app/drivers/sensor/gen4/gen4.h | 16 ++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/app/drivers/sensor/gen4/gen4.c b/app/drivers/sensor/gen4/gen4.c
index e69de29bb2d..ee8be181aa0 100644
--- a/app/drivers/sensor/gen4/gen4.c
+++ b/app/drivers/sensor/gen4/gen4.c
@@ -0,0 +1,8 @@
+
+
+uint8_t gen4_checksum(uint8_t *buffer, uint8_t length) {
+    uint16_t temp;
+    uint8_t checksum = 0;
+    for (temp = 0; temp < length; temp++)
+        checksum += *(buffer + temp);
+}
\ No newline at end of file
diff --git a/app/drivers/sensor/gen4/gen4.h b/app/drivers/sensor/gen4/gen4.h
index e69de29bb2d..4036d12cdcd 100644
--- a/app/drivers/sensor/gen4/gen4.h
+++ b/app/drivers/sensor/gen4/gen4.h
@@ -0,0 +1,16 @@
+#define GEN4_REG_CHIP_ID 0xC2C0
+#define GEN4_REG_FW_VER 0xC2C1
+#define GEN4_REG_SYSCONFIG_1 0xC2C2
+#define GEN4_REG_SYSCONFIG_2 0xC2C3
+#define GEN4_REG_FEEDCONFIG_1 0xC2C4
+#define GEN4_REG_FEEDCONFIG_2 0xC2C5
+#define GEN4_REG_FEEDCONFIG_3 0xC2C6
+#define GEN4_REG_COMPCONFIG_1 0xC2C7
+#define GEN4_REG_PS2_AUXCONTROL 0xC2C8
+#define GEN4_REG_SAMPLERATE 0xC2C9
+#define GEN4_REG_ZIDLE 0xC2CA
+#define GEN4_REG_FILTERCONTROL 0xC2CB
+#define GEN4_REG_POWERCONTROL 0xC2CE
+
+#define GEN4_EXT_ACCESS_WRITE 0x0900
+#define GEN4_EXT_ACCESS_READ 0x0901