altos/attiny: Eliminate warnings from -Wconversion

[fw/altos] / src / attiny / ao_arch_funcs.h

diff --git a/src/attiny/ao_arch_funcs.h b/src/attiny/ao_arch_funcs.h
index 69b259d9419c34b6c8c24951605f03a8a82dc070..1f422a37645bd92d7d7c2764a29c5f3b26a7efde 100644 (file)
--- a/src/attiny/ao_arch_funcs.h
+++ b/src/attiny/ao_arch_funcs.h
@@ -21,7 +21,7 @@
  */
 
 #define ao_spi_get_mask(reg,mask,bus,speed) do {       \
-               (reg) &= ~(mask);                       \
+               (reg) &= (uint8_t) ~(mask);             \
        } while (0)
 
 #define ao_spi_put_mask(reg,mask,bus) do {     \
@@ -121,3 +121,5 @@ extern void ao_report_altitude(void);
 
 void ao_delay_us(uint16_t us);
 
+void
+ao_led_toggle(uint8_t colors);