Movement: give watch faces their index at setup time

33 files changed, 49 insertions, 34 deletions

diff --git a/movement/README.md b/movement/README.md
index f5b9cb15..66c1f890 100644
--- a/movement/README.md
+++ b/movement/README.md
@@ -91,7 +91,7 @@ typedef struct {
 Finally, we define the four required functions, and define the watch face struct that users will use to add the face to their watch:
 
 ```c
-void pulsometer_face_setup(movement_settings_t *settings, void ** context_ptr);
+void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void pulsometer_face_activate(movement_settings_t *settings, void *context);
 bool pulsometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void pulsometer_face_resign(movement_settings_t *settings, void *context);
@@ -119,7 +119,7 @@ These define the tick frequency: when the pulsometer widget is updating the scre
 #### Watch Face Setup
 
 ```c
-void pulsometer_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(pulsometer_state_t));
 }
diff --git a/movement/movement.c b/movement/movement.c
index 783c666c..3e22ace5 100644
--- a/movement/movement.c
+++ b/movement/movement.c
@@ -218,7 +218,7 @@ void app_setup(void) {
         movement_request_tick_frequency(1);
 
         for(uint8_t i = 0; i < MOVEMENT_NUM_FACES; i++) {
-            watch_faces[i].setup(&movement_state.settings, &watch_face_contexts[i]);
+            watch_faces[i].setup(&movement_state.settings, i, &watch_face_contexts[i]);
         }
 
         watch_faces[movement_state.current_watch_face].activate(&movement_state.settings, watch_face_contexts[movement_state.current_watch_face]);
diff --git a/movement/movement.h b/movement/movement.h
index b99f4e8b..5431436b 100644
--- a/movement/movement.h
+++ b/movement/movement.h
@@ -120,7 +120,7 @@ extern const char movement_valid_position_1_chars[];
   *                    data required for your watch face.
   *
   */
-typedef void (*watch_face_setup)(movement_settings_t *settings, void ** context_ptr);
+typedef void (*watch_face_setup)(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 
 /** @brief Prepare to go on-screen.
   * @details This function is called just before your watch enters the foreground. If your watch face has any
diff --git a/movement/watch_faces/clock/simple_clock_face.c b/movement/watch_faces/clock/simple_clock_face.c
index 72f7713f..0b26812f 100644
--- a/movement/watch_faces/clock/simple_clock_face.c
+++ b/movement/watch_faces/clock/simple_clock_face.c
@@ -3,8 +3,9 @@
 #include "watch.h"
 #include "watch_utility.h"
 
-void simple_clock_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void simple_clock_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     // the only context we need is the timestamp of the previous tick.
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(uint32_t));
 }
diff --git a/movement/watch_faces/clock/simple_clock_face.h b/movement/watch_faces/clock/simple_clock_face.h
index 3db894d2..a6cb6ac2 100644
--- a/movement/watch_faces/clock/simple_clock_face.h
+++ b/movement/watch_faces/clock/simple_clock_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void simple_clock_face_setup(movement_settings_t *settings, void ** context_ptr);
+void simple_clock_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void simple_clock_face_activate(movement_settings_t *settings, void *context);
 bool simple_clock_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void simple_clock_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/clock/world_clock_face.c b/movement/watch_faces/clock/world_clock_face.c
index e1d96c97..5f2a1a86 100644
--- a/movement/watch_faces/clock/world_clock_face.c
+++ b/movement/watch_faces/clock/world_clock_face.c
@@ -4,8 +4,9 @@
 #include "watch.h"
 #include "watch_utility.h"
 
-void world_clock_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void world_clock_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(world_clock_state_t));
         world_clock_state_t *state = (world_clock_state_t *)*context_ptr;
diff --git a/movement/watch_faces/clock/world_clock_face.h b/movement/watch_faces/clock/world_clock_face.h
index 1c4525a4..b5e766bd 100644
--- a/movement/watch_faces/clock/world_clock_face.h
+++ b/movement/watch_faces/clock/world_clock_face.h
@@ -15,7 +15,7 @@ typedef struct {
     uint32_t previous_date_time;
 } world_clock_state_t;
 
-void world_clock_face_setup(movement_settings_t *settings, void ** context_ptr);
+void world_clock_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void world_clock_face_activate(movement_settings_t *settings, void *context);
 bool world_clock_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void world_clock_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/complications/beats_face.c b/movement/watch_faces/complications/beats_face.c
index 519d3e4e..b4c76db1 100644
--- a/movement/watch_faces/complications/beats_face.c
+++ b/movement/watch_faces/complications/beats_face.c
@@ -5,8 +5,9 @@
 
 const uint8_t BEAT_REFRESH_FREQUENCY = 8;
 
-void beats_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void beats_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     (void) context_ptr;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(beats_face_state_t));
diff --git a/movement/watch_faces/complications/beats_face.h b/movement/watch_faces/complications/beats_face.h
index bbe2396c..f11126d1 100644
--- a/movement/watch_faces/complications/beats_face.h
+++ b/movement/watch_faces/complications/beats_face.h
@@ -9,7 +9,7 @@ typedef struct {
 } beats_face_state_t;
 
 uint32_t clock2beats(uint32_t hours, uint32_t minutes, uint32_t seconds, uint32_t subseconds, int16_t utc_offset);
-void beats_face_setup(movement_settings_t *settings, void ** context_ptr);
+void beats_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void beats_face_activate(movement_settings_t *settings, void *context);
 bool beats_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void beats_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/complications/day_one_face.c b/movement/watch_faces/complications/day_one_face.c
index 3b185d04..6cc26106 100644
--- a/movement/watch_faces/complications/day_one_face.c
+++ b/movement/watch_faces/complications/day_one_face.c
@@ -17,8 +17,9 @@ static void _day_one_face_update(day_one_state_t state) {
     watch_display_string(buf, 0);
 }
 
-void day_one_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void day_one_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(day_one_state_t));
         memset(*context_ptr, 0, sizeof(day_one_state_t));
diff --git a/movement/watch_faces/complications/day_one_face.h b/movement/watch_faces/complications/day_one_face.h
index 06c7816e..3eb91195 100644
--- a/movement/watch_faces/complications/day_one_face.h
+++ b/movement/watch_faces/complications/day_one_face.h
@@ -15,7 +15,7 @@ typedef struct {
     bool birthday_changed;
 } day_one_state_t;
 
-void day_one_face_setup(movement_settings_t *settings, void ** context_ptr);
+void day_one_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void day_one_face_activate(movement_settings_t *settings, void *context);
 bool day_one_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void day_one_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/complications/pulsometer_face.c b/movement/watch_faces/complications/pulsometer_face.c
index d54d8ddf..f1da9633 100644
--- a/movement/watch_faces/complications/pulsometer_face.c
+++ b/movement/watch_faces/complications/pulsometer_face.c
@@ -6,8 +6,9 @@
 #define PULSOMETER_FACE_FREQUENCY_FACTOR (4ul) // refresh rate will be 2 to this power Hz (0 for 1 Hz, 2 for 4 Hz, etc.)
 #define PULSOMETER_FACE_FREQUENCY (1 << PULSOMETER_FACE_FREQUENCY_FACTOR)
 
-void pulsometer_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(pulsometer_state_t));
 }
 
diff --git a/movement/watch_faces/complications/pulsometer_face.h b/movement/watch_faces/complications/pulsometer_face.h
index cdb5b977..cb0b86bd 100644
--- a/movement/watch_faces/complications/pulsometer_face.h
+++ b/movement/watch_faces/complications/pulsometer_face.h
@@ -9,7 +9,7 @@ typedef struct {
     int16_t ticks;
 } pulsometer_state_t;
 
-void pulsometer_face_setup(movement_settings_t *settings, void ** context_ptr);
+void pulsometer_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void pulsometer_face_activate(movement_settings_t *settings, void *context);
 bool pulsometer_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void pulsometer_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/complications/stopwatch_face.c b/movement/watch_faces/complications/stopwatch_face.c
index d1d1ee73..4a145abf 100644
--- a/movement/watch_faces/complications/stopwatch_face.c
+++ b/movement/watch_faces/complications/stopwatch_face.c
@@ -3,8 +3,9 @@
 #include "stopwatch_face.h"
 #include "watch.h"
 
-void stopwatch_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void stopwatch_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(stopwatch_state_t));
 }
 
diff --git a/movement/watch_faces/complications/stopwatch_face.h b/movement/watch_faces/complications/stopwatch_face.h
index 537c01ce..ff0c1796 100644
--- a/movement/watch_faces/complications/stopwatch_face.h
+++ b/movement/watch_faces/complications/stopwatch_face.h
@@ -10,7 +10,7 @@ typedef struct {
     uint8_t hours;
 } stopwatch_state_t;
 
-void stopwatch_face_setup(movement_settings_t *settings, void ** context_ptr);
+void stopwatch_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void stopwatch_face_activate(movement_settings_t *settings, void *context);
 bool stopwatch_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void stopwatch_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/complications/totp_face.c b/movement/watch_faces/complications/totp_face.c
index 4a34d7ad..468e6a8c 100644
--- a/movement/watch_faces/complications/totp_face.c
+++ b/movement/watch_faces/complications/totp_face.c
@@ -17,8 +17,9 @@ static uint8_t hmacKey[] = {0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0xde, 0xad, 0xbe
 
 static const uint32_t TIMESTEP = 30;
 
-void totp_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void totp_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(totp_state_t));
     TOTP(hmacKey, sizeof(hmacKey), TIMESTEP);
 }
diff --git a/movement/watch_faces/complications/totp_face.h b/movement/watch_faces/complications/totp_face.h
index 0527627a..1e2c5c02 100644
--- a/movement/watch_faces/complications/totp_face.h
+++ b/movement/watch_faces/complications/totp_face.h
@@ -10,7 +10,7 @@ typedef struct {
 
 } totp_state_t;
 
-void totp_face_setup(movement_settings_t *settings, void ** context_ptr);
+void totp_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void totp_face_activate(movement_settings_t *settings, void *context);
 bool totp_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void totp_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/demos/character_set_face.c b/movement/watch_faces/demos/character_set_face.c
index eabb133f..127c0fb3 100644
--- a/movement/watch_faces/demos/character_set_face.c
+++ b/movement/watch_faces/demos/character_set_face.c
@@ -3,8 +3,9 @@
 #include "character_set_face.h"
 #include "watch.h"
 
-void character_set_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void character_set_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(char));
 }
 
diff --git a/movement/watch_faces/demos/character_set_face.h b/movement/watch_faces/demos/character_set_face.h
index b27a8359..0c7cb85c 100644
--- a/movement/watch_faces/demos/character_set_face.h
+++ b/movement/watch_faces/demos/character_set_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void character_set_face_setup(movement_settings_t *settings, void ** context_ptr);
+void character_set_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void character_set_face_activate(movement_settings_t *settings, void *context);
 bool character_set_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void character_set_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/demos/demo_face.c b/movement/watch_faces/demos/demo_face.c
index 82256767..44a180ab 100644
--- a/movement/watch_faces/demos/demo_face.c
+++ b/movement/watch_faces/demos/demo_face.c
@@ -14,8 +14,9 @@ typedef enum {
     DEMO_FACE_NUM_FACES
 } demo_face_index_t;
 
-void demo_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void demo_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(demo_face_index_t));
         memset(*context_ptr, 0, sizeof(demo_face_index_t));
diff --git a/movement/watch_faces/demos/demo_face.h b/movement/watch_faces/demos/demo_face.h
index b9e36ffc..1bc39c4f 100644
--- a/movement/watch_faces/demos/demo_face.h
+++ b/movement/watch_faces/demos/demo_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void demo_face_setup(movement_settings_t *settings, void ** context_ptr);
+void demo_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void demo_face_activate(movement_settings_t *settings, void *context);
 bool demo_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void demo_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/demos/lis2dh_logging_face.c b/movement/watch_faces/demos/lis2dh_logging_face.c
index 9f5783fe..76892d07 100644
--- a/movement/watch_faces/demos/lis2dh_logging_face.c
+++ b/movement/watch_faces/demos/lis2dh_logging_face.c
@@ -86,8 +86,9 @@ static void _lis2dh_logging_face_log_data(lis2dh_logger_state_t *logger_state) {
     logger_state->z_interrupts_this_hour = 0;
 }
 
-void lis2dh_logging_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void lis2dh_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(lis2dh_logger_state_t));
         memset(*context_ptr, 0, sizeof(lis2dh_logger_state_t));
diff --git a/movement/watch_faces/demos/lis2dh_logging_face.h b/movement/watch_faces/demos/lis2dh_logging_face.h
index b0faeca5..02b7ce9b 100644
--- a/movement/watch_faces/demos/lis2dh_logging_face.h
+++ b/movement/watch_faces/demos/lis2dh_logging_face.h
@@ -25,7 +25,7 @@ typedef struct {
     lis2dh_logger_data_point_t data[LIS2DH_LOGGING_NUM_DATA_POINTS];
 } lis2dh_logger_state_t;
 
-void lis2dh_logging_face_setup(movement_settings_t *settings, void ** context_ptr);
+void lis2dh_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void lis2dh_logging_face_activate(movement_settings_t *settings, void *context);
 bool lis2dh_logging_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void lis2dh_logging_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/demos/voltage_face.c b/movement/watch_faces/demos/voltage_face.c
index fe43343f..a2b66854 100644
--- a/movement/watch_faces/demos/voltage_face.c
+++ b/movement/watch_faces/demos/voltage_face.c
@@ -11,8 +11,9 @@ static void _voltage_face_update_display(void) {
     watch_display_string(buf, 0);
 }
 
-void voltage_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void voltage_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     (void) context_ptr;
 }
 
diff --git a/movement/watch_faces/demos/voltage_face.h b/movement/watch_faces/demos/voltage_face.h
index da580da5..530cf34f 100644
--- a/movement/watch_faces/demos/voltage_face.h
+++ b/movement/watch_faces/demos/voltage_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void voltage_face_setup(movement_settings_t *settings, void ** context_ptr);
+void voltage_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void voltage_face_activate(movement_settings_t *settings, void *context);
 bool voltage_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void voltage_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/settings/preferences_face.c b/movement/watch_faces/settings/preferences_face.c
index ef65b1af..8cbe4c68 100644
--- a/movement/watch_faces/settings/preferences_face.c
+++ b/movement/watch_faces/settings/preferences_face.c
@@ -17,8 +17,9 @@ const char preferences_face_titles[PREFERENCES_FACE_NUM_PREFEFENCES][11] = {
     "LT   red  ",   // Light: red component
 };
 
-void preferences_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void preferences_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(uint8_t));
 }
 
diff --git a/movement/watch_faces/settings/preferences_face.h b/movement/watch_faces/settings/preferences_face.h
index af628ba3..54b4cff0 100644
--- a/movement/watch_faces/settings/preferences_face.h
+++ b/movement/watch_faces/settings/preferences_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void preferences_face_setup(movement_settings_t *settings, void ** context_ptr);
+void preferences_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void preferences_face_activate(movement_settings_t *settings, void *context);
 bool preferences_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void preferences_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/settings/set_time_face.c b/movement/watch_faces/settings/set_time_face.c
index 0f5af312..a32efe9f 100644
--- a/movement/watch_faces/settings/set_time_face.c
+++ b/movement/watch_faces/settings/set_time_face.c
@@ -5,8 +5,9 @@
 #define SET_TIME_FACE_NUM_SETTINGS (7)
 const char set_time_face_titles[SET_TIME_FACE_NUM_SETTINGS][3] = {"HR", "M1", "SE", "YR", "MO", "DA", "ZO"};
 
-void set_time_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void set_time_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) *context_ptr = malloc(sizeof(uint8_t));
 }
 
diff --git a/movement/watch_faces/settings/set_time_face.h b/movement/watch_faces/settings/set_time_face.h
index 21fb1e44..d58c4618 100644
--- a/movement/watch_faces/settings/set_time_face.h
+++ b/movement/watch_faces/settings/set_time_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void set_time_face_setup(movement_settings_t *settings, void ** context_ptr);
+void set_time_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void set_time_face_activate(movement_settings_t *settings, void *context);
 bool set_time_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void set_time_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/thermistor/thermistor_logging_face.c b/movement/watch_faces/thermistor/thermistor_logging_face.c
index 0d456785..094600c2 100644
--- a/movement/watch_faces/thermistor/thermistor_logging_face.c
+++ b/movement/watch_faces/thermistor/thermistor_logging_face.c
@@ -48,8 +48,9 @@ static void _thermistor_logging_face_update_display(thermistor_logger_state_t *l
     watch_display_string(buf, 0);
 }
 
-void thermistor_logging_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void thermistor_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     if (*context_ptr == NULL) {
         *context_ptr = malloc(sizeof(thermistor_logger_state_t));
         memset(*context_ptr, 0, sizeof(thermistor_logger_state_t));
diff --git a/movement/watch_faces/thermistor/thermistor_logging_face.h b/movement/watch_faces/thermistor/thermistor_logging_face.h
index ece89396..03e7ff3c 100644
--- a/movement/watch_faces/thermistor/thermistor_logging_face.h
+++ b/movement/watch_faces/thermistor/thermistor_logging_face.h
@@ -18,7 +18,7 @@ typedef struct {
     thermistor_logger_data_point_t data[THERMISTOR_LOGGING_NUM_DATA_POINTS];
 } thermistor_logger_state_t;
 
-void thermistor_logging_face_setup(movement_settings_t *settings, void ** context_ptr);
+void thermistor_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void thermistor_logging_face_activate(movement_settings_t *settings, void *context);
 bool thermistor_logging_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void thermistor_logging_face_resign(movement_settings_t *settings, void *context);
diff --git a/movement/watch_faces/thermistor/thermistor_readout_face.c b/movement/watch_faces/thermistor/thermistor_readout_face.c
index 5478f07d..f55a4210 100644
--- a/movement/watch_faces/thermistor/thermistor_readout_face.c
+++ b/movement/watch_faces/thermistor/thermistor_readout_face.c
@@ -17,8 +17,9 @@ static void _thermistor_readout_face_update_display(bool in_fahrenheit) {
     thermistor_driver_disable();
 }
 
-void thermistor_readout_face_setup(movement_settings_t *settings, void ** context_ptr) {
+void thermistor_readout_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
     (void) settings;
+    (void) watch_face_index;
     (void) context_ptr;
 }
 
diff --git a/movement/watch_faces/thermistor/thermistor_readout_face.h b/movement/watch_faces/thermistor/thermistor_readout_face.h
index 71d15427..dc4f1b99 100644
--- a/movement/watch_faces/thermistor/thermistor_readout_face.h
+++ b/movement/watch_faces/thermistor/thermistor_readout_face.h
@@ -3,7 +3,7 @@
 
 #include "movement.h"
 
-void thermistor_readout_face_setup(movement_settings_t *settings, void ** context_ptr);
+void thermistor_readout_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
 void thermistor_readout_face_activate(movement_settings_t *settings, void *context);
 bool thermistor_readout_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
 void thermistor_readout_face_resign(movement_settings_t *settings, void *context);