STM32: moved timer_ic_set_polarity from timer_common_all to

f1/timer.
Added timer_ic_set_polarity to timer_common_f24 with
the enum tim_ic_pol now including trigger on both edges.
Changed timer_slave_set_polarity to use enum tim_et_pol
rather than tim_ic_pol.

In response to suggestion of stinkydiver73 on 24 March that
timers in all families have an option for triggers on both
edges, except F1.

include/libopencm3/stm32/common/timer_common_all.h

@@ -1012,10 +1012,10 @@ enum tim_ic_input {
 	TIM_IC_IN_TI4 = 6,
 };
 
-/** Input Capture input polarity */
-enum tim_ic_pol {
-	TIM_IC_RISING,
-	TIM_IC_FALLING,
+/** Slave external trigger polarity */
+enum tim_et_pol {
+	TIM_ET_RISING,
+	TIM_ET_FALLING,
 };
 
 /* --- TIM function prototypes ------------------------------------------------------- */
@@ -1093,13 +1093,12 @@ void timer_set_counter(u32 timer_peripheral, u32 count);
 void timer_ic_set_filter(u32 timer, enum tim_ic_id ic, enum tim_ic_filter flt);
 void timer_ic_set_prescaler(u32 timer, enum tim_ic_id ic, enum tim_ic_psc psc);
 void timer_ic_set_input(u32 timer, enum tim_ic_id ic, enum tim_ic_input in);
-void timer_ic_set_polarity(u32 timer, enum tim_ic_id ic, enum tim_ic_pol pol);
 void timer_ic_enable(u32 timer, enum tim_ic_id ic);
 void timer_ic_disable(u32 timer, enum tim_ic_id ic);
 
 void timer_slave_set_filter(u32 timer, enum tim_ic_filter flt);
 void timer_slave_set_prescaler(u32 timer, enum tim_ic_psc psc);
-void timer_slave_set_polarity(u32 timer, enum tim_ic_pol pol);
+void timer_slave_set_polarity(u32 timer, enum tim_et_pol pol);
 void timer_slave_set_mode(u32 timer, u8 mode);
 void timer_slave_set_trigger(u32 timer, u8 trigger);
 

include/libopencm3/stm32/common/timer_common_f24.h

@@ -85,11 +85,19 @@ Only available in F2 and F4 series.
 /**@}*/
 #define TIM5_OR_TI4_RMP_MASK		(0x3 << 6)
 
+/** Input Capture input polarity */
+enum tim_ic_pol {
+	TIM_IC_RISING,
+	TIM_IC_FALLING,
+	TIM_IC_BOTH,
+};
+
 /* --- Function prototypes ------------------------------------------------- */
 
 BEGIN_DECLS
 
 void timer_set_option(u32 timer_peripheral, u32 option);
+void timer_ic_set_polarity(u32 timer, enum tim_ic_id ic, enum tim_ic_pol pol);
 
 END_DECLS
 

include/libopencm3/stm32/f1/timer.h

@@ -37,4 +37,18 @@ LGPL License Terms @ref lgpl_license
 
 #include <libopencm3/stm32/common/timer_common_all.h>
 
+/** Input Capture input polarity */
+enum tim_ic_pol {
+	TIM_IC_RISING,
+	TIM_IC_FALLING,
+};
+
+/* --- Function prototypes ------------------------------------------------- */
+
+BEGIN_DECLS
+
+void timer_ic_set_polarity(u32 timer, enum tim_ic_id ic, enum tim_ic_pol pol);
+
+END_DECLS
+
 #endif