diff options
| author | Keith Packard <keithp@keithp.com> | 2010-06-16 21:49:43 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2010-06-16 21:49:43 -0700 |
| commit | 267923e56e22b3635a21f42ef77a3a36158bc273 (patch) | |
| tree | a54ea6358d1a3b0c769846dd347e304665a16d66 /src | |
| parent | 50ae347bf9de49ccfc92d26888f36e155fb406a3 (diff) | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/ao.h | 1 | ||||
| -rw-r--r-- | src/ao_usb.c | 2 |
2 files changed, 2 insertions, 1 deletions
@@ -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) |