add ext power detect & dev reset

Change-Id: Ied62450670dba2227daa96cbcd162cfe8414445a
---
M sysmoOCTSIM/main.c
1 file changed, 11 insertions(+), 0 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/osmo-ccid-firmware refs/changes/47/39447/1

diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c
index 191d4ae..7fd6ee7 100644
--- a/sysmoOCTSIM/main.c
+++ b/sysmoOCTSIM/main.c
@@ -325,7 +325,16 @@
 	}
 }
 
+static bool old_extpwer_state = 0;
+void init_extpower_detect(void) {
+    old_extpwer_state = gpio_get_pin_level(MUX_STAT);
+}
 
+void poll_extpower_detect(void) {
+    if (old_extpwer_state != gpio_get_pin_level(MUX_STAT)) {
+        NVIC_SystemReset();
+    }
+} 
 
 /***********************************************************************
  * Command Line interface
@@ -516,6 +525,7 @@
 	get_rstcause_str(rstcause_buf);
 
 	atmel_start_init();
+	init_extpower_detect();
 	board_init();
 	usb_init();
 	usb_start();
@@ -578,6 +588,7 @@
 	while (true) { // main loop
 		if(delayed_usb_reset)
 			do_usb_res();
+		poll_extpower_detect();
 		command_try_recv();
 		poll_card_detect();
 		submit_next_irq();

