From: Keith Packard <keithp@keithp.com>
Date: Thu, 17 Jun 2010 04:49:43 +0000 (-0700)
Subject: Add special code for USB panic's.
X-Git-Tag: debian/0.6+223+g5283451~5
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=267923e56e22b3635a21f42ef77a3a36158bc273

Add special code for USB panic's.

The USB system may panic if the hardware isn't ready for IN data when
the driver thinks it should be. This adds a special panic code to make
figuring this out easier.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/ao.h b/src/ao.h
index 97cb75ae..a2dfadd0 100644
--- a/src/ao.h
+++ b/src/ao.h
@@ -110,6 +110,7 @@ ao_start_scheduler(void);
 #define AO_PANIC_STDIO		7	/* Too many stdio handlers registered */
 #define AO_PANIC_REBOOT		8	/* Reboot failed */
 #define AO_PANIC_FLASH		9	/* Invalid flash part (or wrong blocksize) */
+#define AO_PANIC_USB		10	/* Trying to send USB packet while busy */
 
 /* Stop the operating system, beeping and blinking the reason */
 void
diff --git a/src/ao_usb.c b/src/ao_usb.c
index e4af8e45..d071fe6f 100644
--- a/src/ao_usb.c
+++ b/src/ao_usb.c
@@ -85,7 +85,7 @@ ao_usb_ep0_flush(void)
 	USBINDEX = 0;
 	cs0 = USBCS0;
 	if (cs0 & USBCS0_INPKT_RDY)
-		ao_panic(0);
+		ao_panic(AO_PANIC_USB);
 
 	this_len = ao_usb_ep0_in_len;
 	if (this_len > AO_USB_CONTROL_SIZE)