From 8266fba42a97b77d93649dfe7df52c0d3e890503 Mon Sep 17 00:00:00 2001
From: andreas <andreas@wellenvogel.de>
Date: Thu, 26 Oct 2023 11:55:57 +0200
Subject: [PATCH] intermediate: add iic task

---
 lib/hardware/GwHardware.h | 58 +++++++++++++++++++++++++++++++++++++--
 lib/iictask/GwIicTask.cpp | 27 ++++++++++++++++++
 lib/iictask/GwIicTask.h   |  5 ++++
 3 files changed, 88 insertions(+), 2 deletions(-)
 create mode 100644 lib/iictask/GwIicTask.cpp
 create mode 100644 lib/iictask/GwIicTask.h

diff --git a/lib/hardware/GwHardware.h b/lib/hardware/GwHardware.h
index f3d5b77..9ef1b92 100644
--- a/lib/hardware/GwHardware.h
+++ b/lib/hardware/GwHardware.h
@@ -135,20 +135,29 @@
 
 //M5 Serial (Atomic RS232 Base)
 #ifdef M5_SERIAL_KIT_232 
+  #define _GWM5_BOARD
   #define GWSERIAL_TX BOARD_LEFT2
   #define GWSERIAL_RX BOARD_LEFT1
   #define GWSERIAL_TYPE GWSERIAL_TYPE_BI
 #endif
 
 //M5 Serial (Atomic RS485 Base)
-#ifdef M5_SERIAL_KIT_485 
+#ifdef M5_SERIAL_KIT_485
+  #ifdef _GWM5_BOARD
+    #error "can only define one M5 base"
+  #endif
+  #define _GWM5_BOARD
   #define GWSERIAL_TX BOARD_LEFT2
   #define GWSERIAL_RX BOARD_LEFT1
   #define GWSERIAL_TYPE GWSERIAL_TYPE_UNI
 #endif
 
 //M5 GPS (Atomic GPS Base)
-#ifdef M5_GPS_KIT 
+#ifdef M5_GPS_KIT
+  #ifdef _GWM5_BOARD
+    #error "can only define one M5 base"
+  #endif
+  #define _GWM5_BOARD
   #define GWSERIAL_RX BOARD_LEFT1
   #define GWSERIAL_TYPE GWSERIAL_TYPE_RX
   #define CFGDEFAULT_serialBaud "9600"
@@ -162,6 +171,7 @@
 //we use serial2 for groove serial if serial1 is already defined
 //before (e.g. by serial kit)
 #ifdef SERIAL_GROOVE_485
+  #define _GWM5_GROOVE
   #ifdef GWSERIAL_TYPE
     #define GWSERIAL2_TX GROOVE_PIN_2
     #define GWSERIAL2_RX GROOVE_PIN_1
@@ -173,6 +183,10 @@
   #endif 
 #endif
 #ifdef SERIAL_GROOVE_232
+  #ifdef _GWM5_GROOVE
+    #error "can only have one groove device"
+  #endif
+  #define _GWM5_GROOVE
   #ifdef GWSERIAL_TYPE
     #define GWSERIAL2_TX GROOVE_PIN_2
     #define GWSERIAL2_RX GROOVE_PIN_1
@@ -186,6 +200,10 @@
 
 //http://docs.m5stack.com/en/unit/gps
 #ifdef M5_GPS_UNIT
+  #ifdef _GWM5_GROOVE
+    #error "can only have one M5 groove"
+  #endif
+  #define _GWM5_GROOVE
   #ifdef GWSERIAL_TYPE
     #define GWSERIAL2_RX GROOVE_PIN_1
     #define GWSERIAL2_TYPE GWSERIAL_TYPE_RX
@@ -201,15 +219,51 @@
 
 //can kit for M5 Atom
 #ifdef M5_CAN_KIT
+  #ifdef _GWM5_BOARD
+    #error "can only define one M5 base"
+  #endif
+  #define _GWM5_BOARD
   #define ESP32_CAN_TX_PIN BOARD_LEFT1
   #define ESP32_CAN_RX_PIN BOARD_LEFT2
 #endif
 //CAN via groove 
 #ifdef M5_CANUNIT
+  #ifdef _GWM5_GROOVE
+    #error "can only have one M5 groove"
+  #endif
+  #define _GWM5_GROOVE
   #define ESP32_CAN_TX_PIN GROOVE_PIN_2
   #define ESP32_CAN_RX_PIN GROOVE_PIN_1
 #endif
 
+#ifdef M5_GROOVEIIC
+  #ifdef _GWM5_GROOVE
+    #error "can only have one M5 groove"
+  #endif
+  #define _GWM5_GROOVE
+  #ifdef GWIIC_SCL
+    #error "you cannot define both GWIIC_SCL and M5_GROOVEIIC"
+  #endif
+  #define GWIIC_SCL GROOVE_PIN_1
+  #ifdef GWIIC_SDA
+    #error "you cannot define both GWIIC_SDA and M5_GROOVEIIC"
+  #endif
+  #define GWIIC_SDA GROOVE_PIN_2
+#endif
+
+#ifdef GWIIC_SDA
+  #ifndef GWIIC_SCL
+    #error "you must both define GWIIC_SDA and GWIIC_SCL
+  #endif
+#endif
+#ifdef GWIIC_SCL
+  #ifndef GWIIC_SDA
+    #error "you must both define GWIIC_SDA and GWIIC_SCL
+  #endif
+  #define _GWIIC
+#endif
+
+
 #ifndef GWLED_TYPE
   #ifdef GWLED_CODE
   #if GWLED_CODE == 0
diff --git a/lib/iictask/GwIicTask.cpp b/lib/iictask/GwIicTask.cpp
new file mode 100644
index 0000000..5d7e7d0
--- /dev/null
+++ b/lib/iictask/GwIicTask.cpp
@@ -0,0 +1,27 @@
+//#ifdef _GWIIC
+#include "GwIicTask.h"
+#include "GwHardware.h"
+#include <Wire.h>
+void runIicTask(GwApi *api){
+    GwLog *logger=api->getLogger();
+    #ifndef _GWIIC
+        LOG_DEBUG(GwLog::LOG,"no iic defined, iic task stopped");
+        vTaskDelete(NULL);
+        return;
+    #endif
+    #ifndef GWIIC_SDA
+        #define GWIIC_SDA -1
+    #endif
+    #ifndef GWIIC_SCL
+        #define GWIIC_SCL -1
+    #endif
+    LOG_DEBUG(GwLog::LOG,"iic task started");
+    bool rt=Wire.begin(GWIIC_SDA,GWIIC_SCL);
+    if (! rt){
+        LOG_DEBUG(GwLog::ERROR,"unable to initialize IIC");
+        vTaskDelete(NULL);
+        return;
+    }
+    vTaskDelete(NULL);
+}
+//#endif
diff --git a/lib/iictask/GwIicTask.h b/lib/iictask/GwIicTask.h
new file mode 100644
index 0000000..e2af38f
--- /dev/null
+++ b/lib/iictask/GwIicTask.h
@@ -0,0 +1,5 @@
+#ifndef _GWIICTASK
+#define _GWIICTASK
+#include "GwApi.h"
+DECLARE_USERTASK(runIicTask)
+#endif
\ No newline at end of file