From a31e32969f8c16986a568a87168628b3c3ca069e Mon Sep 17 00:00:00 2001
From: Christopher Pepper <p3p@p3psoft.co.uk>
Date: Tue, 25 Jul 2017 17:28:13 +0100
Subject: [PATCH] Base HAL SPI Changes

---
 Marlin/Sd2Card.cpp                  |  5 +++--
 Marlin/ultralcd_st7920_u8glib_rrd.h | 21 +++++++++++----------
 2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/Marlin/Sd2Card.cpp b/Marlin/Sd2Card.cpp
index 512871f21..9c62fd51a 100644
--- a/Marlin/Sd2Card.cpp
+++ b/Marlin/Sd2Card.cpp
@@ -30,6 +30,7 @@
 
 #if ENABLED(SDSUPPORT)
 #include "Sd2Card.h"
+#include "src/HAL/spi_api.h"
 
 //------------------------------------------------------------------------------
 // send command and return error code.  Return zero for OK
@@ -89,14 +90,14 @@ uint32_t Sd2Card::cardSize() {
 }
 //------------------------------------------------------------------------------
 void Sd2Card::chipSelectHigh() {
-  digitalWrite(chipSelectPin_, HIGH);
+  HAL::SPI::disable_cs(SD_SPI_CHANNEL);
 }
 //------------------------------------------------------------------------------
 void Sd2Card::chipSelectLow() {
   #if DISABLED(SOFTWARE_SPI)
     spiInit(spiRate_);
   #endif  // SOFTWARE_SPI
-  digitalWrite(chipSelectPin_, LOW);
+  HAL::SPI::enable_cs(SD_SPI_CHANNEL);
 }
 //------------------------------------------------------------------------------
 /** Erase a range of blocks.
diff --git a/Marlin/ultralcd_st7920_u8glib_rrd.h b/Marlin/ultralcd_st7920_u8glib_rrd.h
index edefbc93d..fbeff5ca6 100644
--- a/Marlin/ultralcd_st7920_u8glib_rrd.h
+++ b/Marlin/ultralcd_st7920_u8glib_rrd.h
@@ -105,21 +105,22 @@ static void ST7920_SWSPI_SND_8BIT(uint8_t val) {
   #define U8G_DELAY() u8g_10MicroDelay()
 #endif
 
-#define ST7920_CS()              { WRITE(ST7920_CS_PIN,1); U8G_DELAY(); }
-#define ST7920_NCS()             { WRITE(ST7920_CS_PIN,0); }
-#define ST7920_SET_CMD()         { ST7920_SWSPI_SND_8BIT(0xF8); U8G_DELAY(); }
-#define ST7920_SET_DAT()         { ST7920_SWSPI_SND_8BIT(0xFA); U8G_DELAY(); }
-#define ST7920_WRITE_BYTE(a)     { ST7920_SWSPI_SND_8BIT((uint8_t)((a)&0xF0u)); ST7920_SWSPI_SND_8BIT((uint8_t)((a)<<4u)); U8G_DELAY(); }
-#define ST7920_WRITE_BYTES(p,l)  { for (uint8_t i = l + 1; --i;) { ST7920_SWSPI_SND_8BIT(*p&0xF0); ST7920_SWSPI_SND_8BIT(*p<<4); p++; } U8G_DELAY(); }
+#include "src/HAL/spi_api.h"
+
+#define ST7920_CS()              { HAL::SPI::enable_cs(LCD_SPI_CHANNEL); U8G_DELAY();}
+#define ST7920_NCS()             { HAL::SPI::disable_cs(LCD_SPI_CHANNEL); }
+#define ST7920_SET_CMD()         { HAL::SPI::write(LCD_SPI_CHANNEL, 0xF8); U8G_DELAY(); }
+#define ST7920_SET_DAT()         { HAL::SPI::write(LCD_SPI_CHANNEL, 0xFA); U8G_DELAY(); }
+#define ST7920_WRITE_BYTE(a)     { HAL::SPI::write(LCD_SPI_CHANNEL, (uint8_t)((a)&0xF0u)); HAL::SPI::write(LCD_SPI_CHANNEL, (uint8_t)((a)<<4u)); U8G_DELAY(); }
+#define ST7920_WRITE_BYTES(p,l)  { for (uint8_t j = l + 1; --j;) { HAL::SPI::write(LCD_SPI_CHANNEL, *p&0xF0); HAL::SPI::write(LCD_SPI_CHANNEL, *p<<4); p++; } U8G_DELAY(); }
+
 
 uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {
   uint8_t i, y;
   switch (msg) {
     case U8G_DEV_MSG_INIT: {
-      OUT_WRITE(ST7920_CS_PIN, LOW);
-      OUT_WRITE(ST7920_DAT_PIN, LOW);
-      OUT_WRITE(ST7920_CLK_PIN, HIGH);
-
+      HAL::SPI::initialise(LCD_SPI_CHANNEL);
+      HAL::SPI::set_frequency(LCD_SPI_CHANNEL, LCD_SPI_FREQUENCY);
       ST7920_CS();
       u8g_Delay(120);                 //initial delay for boot up
       ST7920_SET_CMD();