More bugfixes

bootloader/utils/btn.c

@@ -29,7 +29,7 @@ u8 btn_read()
 		res |= BTN_VOL_DOWN;
 	if (!gpio_read(GPIO_PORT_X, GPIO_PIN_6))
 		res |= BTN_VOL_UP;
-	if (i2c_recv_byte(4, MAX77620_I2C_ADDR, 0x15) & 0x4)
+	if (i2c_recv_byte(4, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFSTAT) & 0x4)
 		res |= BTN_POWER;
 	return res;
 }

bootloader/utils/dirlist.c

@@ -28,7 +28,7 @@ char *dirlist(const char *directory, const char *pattern, bool includeHiddenFile
 	int res = 0;
 	u32 i = 0, j = 0, k = 0;
 	DIR dir;
-	static FILINFO fno;
+	FILINFO fno;
 	
 	char *dir_entries = (char *)calloc(max_entries, 256);
 	char *temp = (char *)calloc(1, 256);

bootloader/utils/util.c

@@ -103,6 +103,5 @@ void power_off()
 	// Stop the alarm, in case we injected and powered off too fast.
 	max77620_rtc_stop_alarm();
 
-	//TODO: we should probably make sure all regulators are powered off properly.
 	i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG1, MAX77620_ONOFFCNFG1_PWR_OFF);
 }