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-rw-r--r--tmk_core/protocol/lufa/lufa.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index 391064c9b2..85fdeabdd1 100644
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -197,10 +197,24 @@ void EVENT_USB_Device_WakeUp()
#endif
}
+#ifdef CONSOLE_ENABLE
+static bool console_flush = false;
+#define CONSOLE_FLUSH_SET(b) do { \
+ uint8_t sreg = SREG; cli(); console_flush = b; SREG = sreg; \
+} while (0)
+
+// called every 1ms
void EVENT_USB_Device_StartOfFrame(void)
{
+ static uint8_t count;
+ if (++count % 50) return;
+ count = 0;
+
+ if (!console_flush) return;
Console_Task();
+ console_flush = false;
}
+#endif
/** Event handler for the USB_ConfigurationChanged event.
* This is fired when the host sets the current configuration of the USB device after enumeration.
@@ -491,6 +505,10 @@ int8_t sendchar(uint8_t c)
// Because sendchar() is called so many times, waiting each call causes big lag.
static bool timeouted = false;
+ // prevents Console_Task() from running during sendchar() runs.
+ // or char will be lost. These two function is mutually exclusive.
+ CONSOLE_FLUSH_SET(false);
+
if (USB_DeviceState != DEVICE_STATE_Configured)
return -1;
@@ -524,8 +542,12 @@ int8_t sendchar(uint8_t c)
Endpoint_Write_8(c);
// send when bank is full
- if (!Endpoint_IsReadWriteAllowed())
+ if (!Endpoint_IsReadWriteAllowed()) {
+ while (!(Endpoint_IsINReady()));
Endpoint_ClearIN();
+ } else {
+ CONSOLE_FLUSH_SET(true);
+ }
Endpoint_SelectEndpoint(ep);
return 0;