fix(core): fix tt ui loader haptic feedback

[no changelog]

core/embed/rust/build.rs

@@ -359,7 +359,7 @@ fn generate_trezorhal_bindings() {
         // haptic
         .allowlist_type("haptic_effect_t")
         .allowlist_function("haptic_play")
-        .allowlist_function("haptic_play_rtp");
+        .allowlist_function("haptic_play_custom");
 
     // Write the bindings to a file in the OUR_DIR.
     bindings

core/embed/rust/src/trezorhal/haptic.rs

@@ -12,8 +12,8 @@ pub fn play(effect: HapticEffect) {
     }
 }
 
-pub fn play_rtp(amplitude: i8, duration: u16) {
+pub fn play_custom(amplitude_pct: i8, duration_ms: u16) {
     unsafe {
-        ffi::haptic_play_rtp(amplitude, duration);
+        ffi::haptic_play_custom(amplitude_pct, duration_ms);
     }
 }

core/embed/rust/src/ui/model_tt/component/loader.rs

@@ -1,5 +1,5 @@
 #[cfg(feature = "haptic")]
-use crate::trezorhal::haptic::{self, play, HapticEffect};
+use crate::trezorhal::haptic::{self, HapticEffect};
 use crate::{
     time::{Duration, Instant},
     ui::{
@@ -18,6 +18,9 @@ use super::theme;
 const GROWING_DURATION_MS: u32 = 1000;
 const SHRINKING_DURATION_MS: u32 = 500;
 
+const HAPTIC_AMPLITUDE_MAX_PCT: i16 = 16;
+const HAPTIC_AMPLITUDE_DURATION_MS: u16 = 100;
+
 pub enum LoaderMsg {
     GrownCompletely,
     ShrunkCompletely,
@@ -169,14 +172,20 @@ impl Component for Loader {
 
                 if self.is_completely_grown(now) {
                     #[cfg(feature = "haptic")]
-                    play(HapticEffect::HoldToConfirm);
+                    haptic::play(HapticEffect::HoldToConfirm);
                     return Some(LoaderMsg::GrownCompletely);
                 } else if self.is_completely_shrunk(now) {
                     return Some(LoaderMsg::ShrunkCompletely);
                 } else {
-                    let progress = self.progress(now).unwrap() as f32 / 1000.0;
-                    let ampl = i16::lerp(0, 76, progress);
-                    haptic::play_rtp(ampl as i8, 100);
+                    #[cfg(feature = "haptic")]
+                    {
+                        if matches!(self.state, State::Growing(_)) {
+                            let progress =
+                                self.progress(now).unwrap() as f32 / display::LOADER_MAX as f32;
+                            let ampl = i16::lerp(0, HAPTIC_AMPLITUDE_MAX_PCT, progress);
+                            haptic::play_custom(ampl as i8, HAPTIC_AMPLITUDE_DURATION_MS);
+                        }
+                    }
 
                     // There is further progress in the animation, request an animation frame event.
                     ctx.request_anim_frame();

core/embed/rust/src/ui/model_tt/component/page.rs

@@ -49,8 +49,9 @@ where
     T: Component,
 {
     pub fn with_hold(mut self) -> Result<Self, Error> {
-        self.button_confirm =
-            Button::with_text(TR::buttons__hold_to_confirm.into()).styled(theme::button_confirm());
+        self.button_confirm = Button::with_text(TR::buttons__hold_to_confirm.into())
+            .styled(theme::button_confirm())
+            .without_haptics();
         self.loader = Some(Loader::new());
         Ok(self)
     }

core/embed/trezorhal/haptic.h

@@ -28,6 +28,6 @@ void haptic_play(haptic_effect_t effect);
 // The function can be invoked repeatedly during the specified duration
 // (`duration_ms`) to modify the amplitude dynamically, allowing
 // the creation of customized haptic effects.
-bool haptic_play_rtp(int8_t amplitude, uint16_t duration_ms);
+bool haptic_play_custom(int8_t amplitude_pct, uint16_t duration_ms);
 
 #endif

core/embed/trezorhal/stm32u5/haptic/drv2625/drv2625.c

@@ -78,6 +78,7 @@
 #define PRESS_EFFECT_AMPLITUDE 25
 #define PRESS_EFFECT_DURATION 10
 
+#define MAX_AMPLITUDE 127
 #define PRODTEST_EFFECT_AMPLITUDE 127
 
 static bool set_reg(uint8_t addr, uint8_t value) {
@@ -144,7 +145,7 @@ void haptic_init(void) {
   TIM16->BDTR |= TIM_BDTR_MOE;
 }
 
-bool haptic_play_rtp(int8_t amplitude, uint16_t duration_ms) {
+static bool haptic_play_rtp(int8_t amplitude, uint16_t duration_ms) {
   if (!playing_rtp) {
     if (!set_reg(DRV2625_REG_MODE,
                  DRV2625_REG_MODE_RTP | DRV2625_REG_MODE_TRGFUNC_ENABLE)) {
@@ -198,6 +199,17 @@ void haptic_play(haptic_effect_t effect) {
   }
 }
 
+bool haptic_play_custom(int8_t amplitude_pct, uint16_t duration_ms) {
+  if (amplitude_pct < 0) {
+    amplitude_pct = 0;
+  } else if (amplitude_pct > 100) {
+    amplitude_pct = 100;
+  }
+
+  return haptic_play_rtp((int8_t)((amplitude_pct * MAX_AMPLITUDE) / 100),
+                         duration_ms);
+}
+
 bool haptic_test(uint16_t duration_ms) {
   return haptic_play_rtp(PRODTEST_EFFECT_AMPLITUDE, duration_ms);
 }