From e620850707cdc4c20f048216a061f2c6a4eb1828 Mon Sep 17 00:00:00 2001
From: Andrew Melvin <amelvin@Andrew-MBA.local>
Date: Wed, 26 Aug 2015 17:36:32 +0100
Subject: [PATCH] Moved to external cpp file

---
 NeoPixelBus.cpp         |  5 ++++
 NeoPixelBus.h           |  1 +
 NeoPixelesp8266.c       | 12 +++++++++
 NeoPixelesp8266uart.cpp | 54 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)
 create mode 100644 NeoPixelesp8266uart.cpp

diff --git a/NeoPixelBus.cpp b/NeoPixelBus.cpp
index a3971bc..4d08f24 100644
--- a/NeoPixelBus.cpp
+++ b/NeoPixelBus.cpp
@@ -42,11 +42,14 @@ License along with NeoPixel.  If not, see
         #define UART_INV_MASK  (0x3f<<19)
         #define UART 1
 
+        extern void ICACHE_RAM_ATTR send_pixels_UART(uint8_t* pixels, uint8_t* end);
+
     #else
         // due to linker overriding the ICACHE_RAM_ATTR for cpp files, these methods are
         // moved into a C file so the attribute will be applied correctly
         extern "C" void ICACHE_RAM_ATTR send_pixels_800(uint8_t* pixels, uint8_t* end, uint8_t pin);
         extern "C" void ICACHE_RAM_ATTR send_pixels_400(uint8_t* pixels, uint8_t* end, uint8_t pin);
+
     #endif
 
 #endif
@@ -782,6 +785,8 @@ void NeoPixelBus::Show(void)
         send_pixels_800(p, end, _pin);
 #else 
 
+        send_pixels_UART(p, end);
+
     char buff[4];
 
     do
diff --git a/NeoPixelBus.h b/NeoPixelBus.h
index b29e349..0d9bc93 100644
--- a/NeoPixelBus.h
+++ b/NeoPixelBus.h
@@ -37,6 +37,7 @@ License along with NeoPixel.  If not, see
 // NeoPixelBus library include to support the slower bus speeds
 //#define INCLUDE_NEO_KHZ400_SUPPORT 
 
+
 class NeoPixelBus
 {
 public:
diff --git a/NeoPixelesp8266.c b/NeoPixelesp8266.c
index 3766067..91cd2bc 100644
--- a/NeoPixelesp8266.c
+++ b/NeoPixelesp8266.c
@@ -36,6 +36,18 @@ inline uint32_t _getCycleCount()
 #define CYCLES_400_T1H  (F_CPU /  833333)
 #define CYCLES_400      (F_CPU /  400000) 
 
+#define UART_INV_MASK  (0x3f<<19)
+#define UART 1
+
+#include "eagle_soc.h"
+#include "uart_register.h"
+
+
+const char data[4] = { 0b00110111, 0b00000111, 0b00110100, 0b00000100 };
+
+
+
+
 void ICACHE_RAM_ATTR send_pixels_800(uint8_t* pixels, uint8_t* end, uint8_t pin)
 {
     const uint32_t pinRegister = _BV(pin);
diff --git a/NeoPixelesp8266uart.cpp b/NeoPixelesp8266uart.cpp
new file mode 100644
index 0000000..3be509b
--- /dev/null
+++ b/NeoPixelesp8266uart.cpp
@@ -0,0 +1,54 @@
+/*
+NeoPixelEsp8266.h - NeoPixel library helper functions for Esp8266 using cycle count
+Copyright (c) 2015 Michael C. Miller. All right reserved.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <Arduino.h>
+#include <eagle_soc.h>
+#include "uart_register.h"
+
+
+#if defined(ESP8266)
+
+
+#define UART_INV_MASK  (0x3f<<19)
+#define UART 1
+
+
+
+const char data[4] = { 0b00110111, 0b00000111, 0b00110100, 0b00000100 };
+
+
+void ICACHE_RAM_ATTR send_pixels_UART(uint8_t* pixels, uint8_t* end)
+{
+    char buff[4];
+    
+    do
+    {
+        uint8_t subpix = *pixels++;
+
+        buff[0] = data[(subpix >> 6) & 3];
+        buff[1] = data[(subpix >> 4) & 3];
+        buff[2] = data[(subpix >> 2) & 3];
+        buff[3] = data[subpix & 3];
+        Serial1.write(buff, sizeof(buff));    
+
+    } while (pixels < end);
+
+}
+
+#endif
\ No newline at end of file