stmhal: Make switch a class, to follow suit of all other modules.

Instead of pyb.switch() as a function, it's more consistent (with
respect to all the other modules and peripherals) to have
pyb.Switch() create a switch object.  This then generalises to having
multiple switches.  Call the object to get its state.  Use sw.callback
to set the callback function for when the switch is pressed.

1 files changed, 2 insertions, 5 deletions

diff --git a/stmhal/main.c b/stmhal/main.c
index bb2a1d88a..861e584d1 100644
--- a/stmhal/main.c
+++ b/stmhal/main.c
@@ -205,7 +205,9 @@ int main(void) {
     pendsv_init();
     timer_tim3_init();
     led_init();
+#if MICROPY_HW_HAS_SWITCH
     switch_init0();
+#endif
 
     int first_soft_reset = true;
 
@@ -297,11 +299,6 @@ soft_reset:
     pin_init();
     extint_init();
 
-#if MICROPY_HW_HAS_SWITCH
-    // must come after extint_init
-    switch_init();
-#endif
-
 #if MICROPY_HW_HAS_LCD
     // LCD init (just creates class, init hardware by calling LCD())
     lcd_init();