From a42bb80cf40c125211cb80b568a524f3e21a63d5 Mon Sep 17 00:00:00 2001
From: Kevin Hester <kevinh@geeksville.com>
Date: Wed, 28 Apr 2021 14:47:29 +0800
Subject: [PATCH] pinelora wip

---
 src/portduino/PortduinoGlue.cpp | 43 ++++++++++++++++++++++++++++-----
 variants/t-echo/variant.h       |  2 --
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/src/portduino/PortduinoGlue.cpp b/src/portduino/PortduinoGlue.cpp
index 783e9a6f..294dc87a 100644
--- a/src/portduino/PortduinoGlue.cpp
+++ b/src/portduino/PortduinoGlue.cpp
@@ -23,6 +23,31 @@ void cpuDeepSleep(uint64_t msecs)
 void updateBatteryLevel(uint8_t level) NOT_IMPLEMENTED("updateBatteryLevel");
 
 
+/** a simulated pin for busted IRQ hardware
+ * Porduino helper class to do this i2c based polling:
+ */
+class PolledIrqPin : public GPIOPin
+{
+  public:
+    PolledIrqPin() : GPIOPin(LORA_DIO1, "loraIRQ") {}
+
+    /// Read the low level hardware for this pin
+    virtual PinStatus readPinHardware()
+    {
+        if (isrPinStatus < 0)
+            return LOW; // No interrupt handler attached, don't bother polling i2c right now
+        else {
+            extern RadioInterface *rIf; // FIXME, temporary hack until we know if we need to keep this
+
+            assert(rIf);
+            RadioLibInterface *rIf95 = static_cast<RadioLibInterface *>(rIf);
+            bool p = rIf95->isIRQPending();
+            log(SysGPIO, LogDebug, "PolledIrqPin::readPinHardware(%s, %d, %d)", getName(), getPinNum(), p);
+            return p ? HIGH : LOW;
+        }
+    }
+};
+
 GPIOPin *loraIrq;
 
 /** apps run under portduino can optionally define a portduinoSetup() to
@@ -34,18 +59,24 @@ void portduinoSetup()
     printf("Setting up Meshtastic on Porduino...\n");
 
     // FIXME: remove this hack once interrupts are confirmed to work on new pine64 board
+    // loraIrq = new PolledIrqPin();
     loraIrq = new LinuxGPIOPin(LORA_DIO1, "ch341", "int", "loraIrq"); // or "err"?
+    loraIrq->setSilent();
     gpioBind(loraIrq);
 
     // BUSY hw was busted on current board - just use the simulated pin (which will read low)
-    gpioBind(new LinuxGPIOPin(SX1262_BUSY, "ch341", "slct", "loraBusy"));
-    // auto fakeBusy = new SimGPIOPin(SX1262_BUSY, "fakeBusy");
-    // fakeBusy->writePin(LOW);
-    // fakeBusy->setSilent(true);
-    // gpioBind(fakeBusy);
+    auto busy = new LinuxGPIOPin(SX1262_BUSY, "ch341", "slct", "loraBusy");
+    busy->setSilent();
+    gpioBind(busy);
+    //auto fakeBusy = new SimGPIOPin(SX1262_BUSY, "fakeBusy");
+    //fakeBusy->writePin(LOW);
+    //fakeBusy->setSilent(true);
+    //gpioBind(fakeBusy);
+
+    gpioBind(new LinuxGPIOPin(SX1262_RESET, "ch341", "ini", "loraReset"));    
 
     auto loraCs = new LinuxGPIOPin(SX1262_CS, "ch341", "cs0", "loraCs");
-    loraCs->setSilent(true);
+    loraCs->setSilent();
     gpioBind(loraCs);
 
     // gpioBind((new SimGPIOPin(LORA_RESET, "LORA_RESET")));
diff --git a/variants/t-echo/variant.h b/variants/t-echo/variant.h
index 66a42421..5aade0fc 100644
--- a/variants/t-echo/variant.h
+++ b/variants/t-echo/variant.h
@@ -231,8 +231,6 @@ External serial flash WP25R1635FZUIL0
 #define PIN_GPS_TX (32 + 9)   // This is for bits going TOWARDS the CPU
 #define PIN_GPS_RX (32 + 8)   // This is for bits going TOWARDS the GPS
 
-#define HAS_AIR530_GPS
-
 #define PIN_SERIAL1_RX PIN_GPS_TX
 #define PIN_SERIAL1_TX PIN_GPS_RX