From 1a54a58d72147888f783a3caf364479efff4ed9b Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Thu, 7 Apr 2011 22:00:38 -0700
Subject: altos: Use PIO(6) on BTM to monitor BT connection. Fix BTM init.

PIo(6) appears to be an active-low indication of the Bluetooth
connection status. Hook this up using an interrupt to track the
link state instead of using in-band status messages.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/ao_usb.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/ao_usb.c')

diff --git a/src/ao_usb.c b/src/ao_usb.c
index b4e3f1fe..ece6756a 100644
--- a/src/ao_usb.c
+++ b/src/ao_usb.c
@@ -46,6 +46,7 @@ void
 ao_usb_isr(void) __interrupt 6
 {
 	USBIF = 0;
+	IRCON2 &= ~IRCON2_USBIF;
 	ao_usb_iif |= USBIIF;
 	if (ao_usb_iif & 1)
 		ao_wakeup(&ao_usb_task);
@@ -57,6 +58,9 @@ ao_usb_isr(void) __interrupt 6
 
 	if (USBCIF & USBCIF_RSTIF)
 		ao_usb_set_interrupts();
+#if HAS_BTM
+	ao_btm_isr();
+#endif
 }
 
 struct ao_usb_setup {
-- 
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