From c728ed9a28e8682e57539b962703a1e16d72b0e6 Mon Sep 17 00:00:00 2001
From: Jan-Henrik Bruhn <hi@jhbruhn.de>
Date: Fri, 30 Aug 2019 11:15:00 +0200
Subject: [PATCH] Start driver implementation

---
 midi2cv/drivers/gpio.cc | 21 ++++++++++++++++++
 midi2cv/drivers/gpio.h  | 47 +++++++++++++++++++++++++++++++++++++++++
 midi2cv/makefile        |  7 +-----
 midi2cv/midi2cv.cc      | 12 +++++++++--
 4 files changed, 79 insertions(+), 8 deletions(-)
 create mode 100644 midi2cv/drivers/gpio.cc
 create mode 100644 midi2cv/drivers/gpio.h

diff --git a/midi2cv/drivers/gpio.cc b/midi2cv/drivers/gpio.cc
new file mode 100644
index 0000000..4648995
--- /dev/null
+++ b/midi2cv/drivers/gpio.cc
@@ -0,0 +1,21 @@
+#include "gpio.h"
+
+#include <stm32f10x_conf.h>
+
+void GPIO::Init() {
+  GPIO_InitTypeDef gpio_init;
+  
+  gpio_init.GPIO_Pin = PIN_SS_DAC0 | PIN_SS_DAC1 | PIN_RST_USB | PIN_SS_USB | PIN_SS_OLED | PIN_SDC_OLED;
+  gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
+  gpio_init.GPIO_Mode = GPIO_Mode_Out_PP;
+  GPIO_Init(GPIOB, &gpio_init);
+
+  gpio_init.GPIO_Pin = PIN_GATE_OUT_1 | PIN_GATE_OUT_2 | PIN_GATE_OUT_3 | PIN_GATE_OUT_4 | PIN_GATE_OUT_5 | PIN_GATE_OUT_6;
+  gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
+  gpio_init.GPIO_Mode = GPIO_Mode_Out_PP;
+  GPIO_Init(GPIOA, &gpio_init);
+}
+
+void GPIO::Write(GPIO_TypeDef* port, uint16_t pin, bool state) {
+  GPIO_WriteBit(GPIOB, pin, static_cast<BitAction>(state));
+}
diff --git a/midi2cv/drivers/gpio.h b/midi2cv/drivers/gpio.h
new file mode 100644
index 0000000..1cd92d6
--- /dev/null
+++ b/midi2cv/drivers/gpio.h
@@ -0,0 +1,47 @@
+#ifndef MIDI2CV_DRIVERS_GPIO_H
+#define MIDI2CV_DRIVERS_GPIO_H
+
+
+#include "stmlib/stmlib.h"
+#include <stm32f10x_conf.h>
+
+#define PORT_SS_DAC0 GPIOB
+#define PIN_SS_DAC0 GPIO_Pin_6
+#define PORT_SS_DAC1 GPIOB
+#define PIN_SS_DAC1 GPIO_Pin_7
+#define PORT_RST_USB GPIOB
+#define PIN_RST_USB GPIO_Pin_8
+#define PORT_SS_USB GPIOB
+#define PIN_SS_USB GPIO_Pin_9
+#define PORT_SS_OLED GPIOB
+#define PIN_SS_OLED GPIO_Pin_11
+#define PORT_SDC_OLED GPIOB
+#define PIN_SDC_OLED GPIO_Pin_12
+
+#define PORT_GATE_OUT_1 GPIOA
+#define PIN_GATE_OUT_1 GPIO_Pin_0
+#define PORT_GATE_OUT_2 GPIOA
+#define PIN_GATE_OUT_2 GPIO_Pin_1
+#define PORT_GATE_OUT_3 GPIOA
+#define PIN_GATE_OUT_3 GPIO_Pin_2
+#define PORT_GATE_OUT_4 GPIOA
+#define PIN_GATE_OUT_4 GPIO_Pin_3
+#define PORT_GATE_OUT_5 GPIOA
+#define PIN_GATE_OUT_5 GPIO_Pin_4
+#define PORT_GATE_OUT_6 GPIOA
+#define PIN_GATE_OUT_6 GPIO_Pin_5
+
+#define GPIO_PIN(x) PORT_##x, PIN_##x
+
+class GPIO {
+  public:
+    GPIO() { }
+    ~GPIO() {}
+
+    void Init();
+    void Write(GPIO_TypeDef* port, uint16_t pin, bool state);
+  private:
+    DISALLOW_COPY_AND_ASSIGN(GPIO);
+};
+
+#endif
diff --git a/midi2cv/makefile b/midi2cv/makefile
index 56f5dbd..adac14f 100644
--- a/midi2cv/makefile
+++ b/midi2cv/makefile
@@ -32,7 +32,7 @@ DENSITY        = md
 MEMORY_MODE    = flash
 # USB            = enabled
 
-#APPLICATION    = TRUE
+APPLICATION    = TRUE
 BOOTLOADER     = midi2cv_bootloader
 
 # Preferred upload command
@@ -50,8 +50,3 @@ TOOLCHAIN_PATH ?= /usr/local/arm-4.8.3/
 
 include stmlib/makefile.inc
 
-# Rule for building the firmware update file
-wav:  $(TARGET_BIN)
-	python stm_audio_bootloader/fsk/encoder.py \
-		-s 48000 -b 16 -n 8 -z 4 -p 256 \
-		$(TARGET_BIN)
diff --git a/midi2cv/midi2cv.cc b/midi2cv/midi2cv.cc
index 0cd4a74..9061d95 100644
--- a/midi2cv/midi2cv.cc
+++ b/midi2cv/midi2cv.cc
@@ -1,14 +1,22 @@
 #include <stm32f10x_conf.h>
 
 #include "stmlib/system/system_clock.h"
+#include "drivers/gpio.h"
 
 using namespace stmlib;
 
+GPIO gpio;
+
 void Init(void) {
-  system_clock.Init();
+  //system_clock.Init();
+  gpio.Init();
 }
 
 int main(void) {
   Init();
-	// hi
+  // hi
+  gpio.Write(GPIO_PIN(GATE_OUT_1), 1);
+  gpio.Write(GPIO_PIN(GATE_OUT_2), 0);
+  gpio.Write(GPIO_PIN(GATE_OUT_3), 1);
+  gpio.Write(GPIO_PIN(GATE_OUT_4), 0);
 }