From acc974c64b1e17e6807133fdc50de5bb34aedda5 Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Wed, 9 Feb 2011 00:03:58 +0900
Subject: added protocol stack: pjrc, vusb

---
 usb_debug.c | 79 -------------------------------------------------------------
 1 file changed, 79 deletions(-)
 delete mode 100644 usb_debug.c

(limited to 'usb_debug.c')

diff --git a/usb_debug.c b/usb_debug.c
deleted file mode 100644
index 09048e0f16..0000000000
--- a/usb_debug.c
+++ /dev/null
@@ -1,79 +0,0 @@
-#include <avr/interrupt.h>
-#include "sendchar.h"
-#include "usb_debug.h"
-
-
-// the time remaining before we transmit any partially full
-// packet, or send a zero length packet.
-volatile uint8_t debug_flush_timer=0;
-
-
-int8_t sendchar(uint8_t c)
-{
-	static uint8_t previous_timeout=0;
-	uint8_t timeout, intr_state;
-
-	// if we're not online (enumerated and configured), error
-	if (!usb_configured()) return -1;
-	// interrupts are disabled so these functions can be
-	// used from the main program or interrupt context,
-	// even both in the same program!
-	intr_state = SREG;
-	cli();
-	UENUM = DEBUG_TX_ENDPOINT;
-	// if we gave up due to timeout before, don't wait again
-	if (previous_timeout) {
-		if (!(UEINTX & (1<<RWAL))) {
-			SREG = intr_state;
-			return -1;
-		}
-		previous_timeout = 0;
-	}
-	// wait for the FIFO to be ready to accept data
-	timeout = UDFNUML + 4;
-	while (1) {
-		// are we ready to transmit?
-		if (UEINTX & (1<<RWAL)) break;
-		SREG = intr_state;
-		// have we waited too long?
-		if (UDFNUML == timeout) {
-			previous_timeout = 1;
-			return -1;
-		}
-		// has the USB gone offline?
-		if (!usb_configured()) return -1;
-		// get ready to try checking again
-		intr_state = SREG;
-		cli();
-		UENUM = DEBUG_TX_ENDPOINT;
-	}
-	// actually write the byte into the FIFO
-	UEDATX = c;
-	// if this completed a packet, transmit it now!
-	if (!(UEINTX & (1<<RWAL))) {
-		UEINTX = 0x3A;
-		debug_flush_timer = 0;
-	} else {
-		debug_flush_timer = 2;
-	}
-	SREG = intr_state;
-	return 0;
-}
-
-// immediately transmit any buffered output.
-void usb_debug_flush_output(void)
-{
-	uint8_t intr_state;
-
-	intr_state = SREG;
-	cli();
-	if (debug_flush_timer) {
-		UENUM = DEBUG_TX_ENDPOINT;
-		while ((UEINTX & (1<<RWAL))) {
-			UEDATX = 0;
-		}
-		UEINTX = 0x3A;
-		debug_flush_timer = 0;
-	}
-	SREG = intr_state;
-}
-- 
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