From de85b7696fdc77983557d74f2320105583f1722c Mon Sep 17 00:00:00 2001
From: Melissa LeBlanc-Williams <melissa@makermelissa.com>
Date: Fri, 10 May 2019 15:12:05 -0700
Subject: [PATCH] Added readcommand8 to GFX (#220)

---
 Adafruit_SPITFT.cpp | 23 +++++++++++++++++++++++
 Adafruit_SPITFT.h   |  1 +
 library.properties  |  2 +-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/Adafruit_SPITFT.cpp b/Adafruit_SPITFT.cpp
index 846b3d6..2bdfbb0 100644
--- a/Adafruit_SPITFT.cpp
+++ b/Adafruit_SPITFT.cpp
@@ -1729,6 +1729,29 @@ void Adafruit_SPITFT::sendCommand(uint8_t commandByte, const uint8_t *dataBytes,
     SPI_END_TRANSACTION();
 }
 
+/*!
+ @brief   Read 8 bits of data from display configuration memory (not RAM).
+ This is highly undocumented/supported and should be avoided,
+ function is only included because some of the examples use it.
+ @param   command
+ The command register to read data from.
+ @param   index
+ The byte index into the command to read from.
+ @return  Unsigned 8-bit data read from display register.
+ */
+/**************************************************************************/
+uint8_t Adafruit_SPITFT::readcommand8(uint8_t commandByte, uint8_t index) {
+  uint8_t result;
+  startWrite();
+  SPI_DC_LOW();     // Command mode
+  spiWrite(commandByte);
+  SPI_DC_HIGH();    // Data mode
+  do {
+    result = spiRead();
+  } while(index--); // Discard bytes up to index'th
+  endWrite();
+  return result;
+}
 
 // -------------------------------------------------------------------------
 // Lowest-level hardware-interfacing functions. Many of these are inline and
diff --git a/Adafruit_SPITFT.h b/Adafruit_SPITFT.h
index 66342a2..b41868a 100644
--- a/Adafruit_SPITFT.h
+++ b/Adafruit_SPITFT.h
@@ -189,6 +189,7 @@ class Adafruit_SPITFT : public Adafruit_GFX {
     void         endWrite(void);
     void         sendCommand(uint8_t commandByte, uint8_t *dataBytes = NULL, uint8_t numDataBytes = 0);
     void         sendCommand(uint8_t commandByte, const uint8_t *dataBytes, uint8_t numDataBytes);
+    uint8_t      readcommand8(uint8_t commandByte, uint8_t index = 0);
 
     // These functions require a chip-select and/or SPI transaction
     // around them. Higher-level graphics primitives might start a
diff --git a/library.properties b/library.properties
index 2bc14fd..96adbc1 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Adafruit GFX Library
-version=1.4.14
+version=1.5.0
 author=Adafruit
 maintainer=Adafruit <info@adafruit.com>
 sentence=Adafruit GFX graphics core library, this is the 'core' class that all our other graphics libraries derive from.