From 99be520563834d51eb3ddd32b757a3dcd2486632 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Thu, 2 Oct 2025 14:45:56 -0400
Subject: spi systest

---
 fw/usb.c | 56 +++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 35 insertions(+), 21 deletions(-)

(limited to 'fw/usb.c')

diff --git a/fw/usb.c b/fw/usb.c
index d793d31..ad78d79 100644
--- a/fw/usb.c
+++ b/fw/usb.c
@@ -59,6 +59,41 @@ static U8 txBuf[CDC_DATA_IN_EP_SIZE];
 
 /***** Function Definitions *****/
 
+void
+usbInit(void) {
+	USBDeviceInit();
+	USBDeviceAttach();
+}
+
+void
+usbTask(void) {
+	static State state = {idleState};
+
+	USBDeviceTasks();
+
+	if (USBGetDeviceState() < CONFIGURED_STATE) {
+		return;
+	}
+	if (USBIsDeviceSuspended()) {
+		return;
+	}
+
+	if (USBUSARTIsTxTrfReady()) {
+		// Execute action and transition to next state
+		state = *state.next();
+	}
+
+	CDCTxService();
+}
+
+void
+usbPrint(char *s) {
+	while (!USBUSARTIsTxTrfReady()) {
+		usbTask();
+	}
+	putsUSBUSART(s);
+}
+
 // Rx a char from USB.
 // Returns FAIL if no data.
 static Status
@@ -95,27 +130,6 @@ getcharBlock(char *c, U8 retries) {
 	return FAIL;
 }
 
-void
-usbTask(void) {
-	static State state = {idleState};
-
-	USBDeviceTasks();
-
-	if (USBGetDeviceState() < CONFIGURED_STATE) {
-		return;
-	}
-	if (USBIsDeviceSuspended()) {
-		return;
-	}
-
-	if (USBUSARTIsTxTrfReady()) {
-		// Execute action and transition to next state
-		state = *state.next();
-	}
-
-	CDCTxService();
-}
-
 // Read (the start of) a command from USB.
 static State *
 idleState(void) {
-- 
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