From 005e0ba51aafb6b26383fbd7df9000399c79098d Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Sat, 21 Jan 2012 22:30:38 +0100
Subject: Added USB interrupt handler.

---
 hal/interrupt.cpp |  8 ++++++++
 hal/pin.h         | 18 ++++++++++++++++++
 main.cpp          | 40 +++++++++++++++++++++++++---------------
 3 files changed, 51 insertions(+), 15 deletions(-)

diff --git a/hal/interrupt.cpp b/hal/interrupt.cpp
index 611b09c..ab9c89a 100644
--- a/hal/interrupt.cpp
+++ b/hal/interrupt.cpp
@@ -166,4 +166,12 @@ vector_t vectors[] __attribute__((section(".vectors"))) = {
 	interrupt<Interrupt::DMA2_Channel2>,
 	interrupt<Interrupt::DMA2_Channel3>,
 	interrupt<Interrupt::DMA2_Channel4_5>,
+	0, // 60
+	0, // 61
+	0, // 62
+	0, // 63
+	0, // 64
+	0, // 65
+	0, // 66
+	interrupt<(Interrupt::IRQ)67>, // 67
 };
diff --git a/hal/pin.h b/hal/pin.h
index 29ec158..4102e6a 100644
--- a/hal/pin.h
+++ b/hal/pin.h
@@ -59,6 +59,24 @@ class Pin {
 			}
 		}
 };
+
+static Pin PA0(GPIOA, 0);
+static Pin PA1(GPIOA, 1);
+static Pin PA2(GPIOA, 2);
+static Pin PA3(GPIOA, 3);
+static Pin PA4(GPIOA, 4);
+static Pin PA5(GPIOA, 5);
+static Pin PA6(GPIOA, 6);
+static Pin PA7(GPIOA, 7);
+static Pin PA8(GPIOA, 8);
+static Pin PA9(GPIOA, 9);
+static Pin PA10(GPIOA, 10);
+static Pin PA11(GPIOA, 11);
+static Pin PA12(GPIOA, 12);
+static Pin PA13(GPIOA, 13);
+static Pin PA14(GPIOA, 14);
+static Pin PA15(GPIOA, 15);
+
 static Pin PB0(GPIOB, 0);
 static Pin PB1(GPIOB, 1);
 static Pin PB2(GPIOB, 2);
diff --git a/main.cpp b/main.cpp
index 3ea82b8..2898f2b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -13,6 +13,18 @@ static Pin& led_yellow = PD13;
 static Pin& led_red = PD14;
 static Pin& led_blue = PD15;
 
+static Pin& usb_dm = PA11;
+static Pin& usb_dp = PA12;
+static Pin& usb_vbus = PA9;
+
+template<>
+void interrupt<(Interrupt::IRQ)67>() {
+	led_blue.toggle();
+	led_red.toggle();
+	
+	OTG_FS.reg.GINTSTS = 0xffffffff;
+}
+
 int main() {
 	// Initialize system timer.
 	STK.LOAD = 168000000 / 8 / 1000; // 1000 Hz.
@@ -27,8 +39,19 @@ int main() {
 	led_red.set_mode(Pin::Output);
 	led_blue.set_mode(Pin::Output);
 	
+	led_red.on();
+	led_blue.off();
+	
+	usb_dm.set_mode(Pin::AF);
+	usb_dm.set_af(10);
+	usb_dp.set_mode(Pin::AF);
+	usb_dp.set_af(10);
+	
 	RCC.enable(RCC.OTGFS);
-
+	Interrupt::enable((Interrupt::IRQ)67);
+	
+	OTG_FS.reg.GAHBCFG = 1;
+	
 	// USB configuration
 	OTG_FS.reg.GUSBCFG = (1 << 30) | (0xf << 10) | (1 << 9) | (1 << 8);
 	//                   FDMOD       TRDT          HNPCAP     SRPCAP
@@ -46,20 +69,7 @@ int main() {
 	//                 VBUSBSEN
 	
 	while(1) {
-		led_green.on();
-		Time::sleep(100);
-		led_green.off();
-		
-		led_yellow.on();
-		Time::sleep(100);
-		led_yellow.off();
-		
-		led_red.on();
-		Time::sleep(100);
-		led_red.off();
-		
-		led_blue.on();
+		led_green.toggle();
 		Time::sleep(100);
-		led_blue.off();
 	}
 }
-- 
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