feat(core/prodtest): add touch-draw command to prodtest

[no changelog]

core/embed/projects/prodtest/README.md

@@ -220,6 +220,15 @@ haptic-test 3000
 OK
 ```
 
+### touch-draw
+Starts a drawing canvas, where user can draw with finger on pen. Canvas is exited by sending CTRL+C command.
+```
+touch-draw
+# Starting drawing canvas...
+# Press CTRL+C for exit.
+ERROR abort
+```
+
 ### touch-test
 Tests the functionality of the display's touch screen. It draws a filled rectangle in one of the four display quadrants and waits for user interaction.
 

core/embed/projects/prodtest/cmd/prodtest_touch.c

@@ -336,6 +336,40 @@ static void prodtest_touch_test_sensitivity(cli_t* cli) {
   screen_prodtest_welcome();
 }
 
+static void prodtest_touch_draw(cli_t* cli) {
+#define MAX_EVENTS 256
+
+  if (cli_arg_count(cli) > 0) {
+    cli_error_arg_count(cli);
+    return;
+  }
+
+  cli_trace(cli, "Starting drawing canvas...");
+  cli_trace(cli, "Press CTRL+C for exit.");
+
+  uint32_t events[MAX_EVENTS] = {0};
+  uint32_t idx = 0;
+
+  screen_prodtest_draw(events, 0);
+  display_set_backlight(150);
+
+  for (;;) {
+    uint32_t evt = touch_get_event();
+
+    if (evt != 0) {
+      events[idx] = evt;
+      idx = (idx + 1) % MAX_EVENTS;
+
+      screen_prodtest_draw(events, MAX_EVENTS);
+    }
+    if (cli_aborted(cli)) {
+      break;
+    }
+  }
+
+  screen_prodtest_welcome();
+}
+
 // clang-format off
 
 PRODTEST_CLI_CMD(
@@ -380,4 +414,11 @@ PRODTEST_CLI_CMD(
   .args = "<sensitivity>"
 )
 
+PRODTEST_CLI_CMD(
+    .name = "touch-draw",
+    .func = prodtest_touch_draw,
+    .info = "Simple drawing canvas",
+    .args = ""
+  )
+
 #endif  // USE_TOUCH

core/embed/rust/rust_ui_prodtest.h

@@ -12,3 +12,5 @@ void screen_prodtest_show_text(const char* text, uint8_t text_len);
 void screen_prodtest_touch(int16_t x0, int16_t y0, int16_t w, int16_t h);
 
 void screen_prodtest_border(void);
+
+void screen_prodtest_draw(uint32_t* events, uint32_t events_len);

core/embed/rust/src/ui/api/prodtest_c.rs

@@ -3,7 +3,11 @@ use crate::ui::{ui_prodtest::ProdtestUI, util::from_c_array, ModelUI};
 #[cfg(feature = "touch")]
 use crate::ui::geometry::{Offset, Point, Rect};
 #[cfg(feature = "touch")]
+use crate::ui::{event::TouchEvent, layout::simplified::touch_unpack};
+#[cfg(feature = "touch")]
 use cty::int16_t;
+#[cfg(feature = "touch")]
+use heapless::Vec;
 
 #[no_mangle]
 extern "C" fn screen_prodtest_welcome() {
@@ -47,3 +51,19 @@ extern "C" fn screen_prodtest_touch(x0: int16_t, y0: int16_t, w: int16_t, h: int
     let area = Rect::from_top_left_and_size(Point::new(x0, y0), Offset::new(w, h));
     ModelUI::screen_prodtest_touch(area);
 }
+
+#[no_mangle]
+#[cfg(feature = "touch")]
+extern "C" fn screen_prodtest_draw(events: *const cty::uint32_t, events_len: u32) {
+    let events = unsafe { core::slice::from_raw_parts(events, events_len as usize) };
+
+    let mut v: Vec<TouchEvent, 256> = Vec::new();
+
+    for e in events.iter() {
+        if let Some(event) = touch_unpack(*e) {
+            unwrap!(v.push(event));
+        }
+    }
+
+    ModelUI::screen_prodtest_draw(v);
+}

core/embed/rust/src/ui/layout/simplified.rs

@@ -52,8 +52,7 @@ fn button_eval() -> Option<ButtonEvent> {
 }
 
 #[cfg(feature = "touch")]
-fn touch_eval() -> Option<TouchEvent> {
-    let event = io_touch_get_event();
+pub fn touch_unpack(event: u32) -> Option<TouchEvent> {
     if event == 0 {
         return None;
     }
@@ -85,7 +84,7 @@ pub fn run(frame: &mut impl Component<Msg = impl ReturnToC>) -> u32 {
         #[cfg(all(feature = "button", not(feature = "touch")))]
         let event = button_eval();
         #[cfg(feature = "touch")]
-        let event = touch_eval();
+        let event = touch_unpack(io_touch_get_event());
         if let Some(e) = event {
             let mut ctx = EventCtx::new();
             #[cfg(all(feature = "button", not(feature = "touch")))]

core/embed/rust/src/ui/layout_bolt/prodtest/mod.rs

@@ -3,12 +3,17 @@ use crate::ui::{
     constant::screen,
     display,
     display::Color,
+    event::{
+        TouchEvent,
+        TouchEvent::{TouchEnd, TouchMove, TouchStart},
+    },
     geometry::{Alignment, Offset, Rect},
     layout_bolt::{fonts, theme, UIBolt},
     shape,
     shape::render_on_display,
     ui_prodtest::ProdtestUI,
 };
+use heapless::Vec;
 
 impl ProdtestUI for UIBolt {
     fn screen_prodtest_welcome() {
@@ -133,4 +138,35 @@ impl ProdtestUI for UIBolt {
         display::refresh();
         display::set_backlight(theme::backlight::get_backlight_normal());
     }
+
+    fn screen_prodtest_draw(events: Vec<TouchEvent, 256>) {
+        display::sync();
+
+        render_on_display(None, Some(Color::black()), |target| {
+            for ev in events.iter() {
+                match ev {
+                    TouchStart(p) => {
+                        shape::Bar::new(Rect::from_center_and_size(*p, Offset::new(3, 3)))
+                            .with_fg(Color::rgb(0, 255, 0))
+                            .with_bg(Color::rgb(0, 255, 0))
+                            .render(target);
+                    }
+                    TouchMove(p) => {
+                        shape::Bar::new(Rect::from_center_and_size(*p, Offset::new(1, 1)))
+                            .with_fg(Color::white())
+                            .with_bg(Color::white())
+                            .render(target);
+                    }
+                    TouchEnd(p) => {
+                        shape::Bar::new(Rect::from_center_and_size(*p, Offset::new(3, 3)))
+                            .with_fg(Color::rgb(255, 0, 0))
+                            .with_bg(Color::rgb(255, 0, 0))
+                            .render(target);
+                    }
+                }
+            }
+        });
+
+        display::refresh();
+    }
 }

core/embed/rust/src/ui/layout_caesar/prodtest/mod.rs

@@ -1,3 +1,5 @@
+#[cfg(feature = "touch")]
+use crate::ui::event::TouchEvent;
 use crate::ui::{
     component::{base::Component, Qr},
     constant::screen,
@@ -9,6 +11,8 @@ use crate::ui::{
     shape::render_on_display,
     ui_prodtest::ProdtestUI,
 };
+#[cfg(feature = "touch")]
+use heapless::Vec;
 
 impl ProdtestUI for UICaesar {
     fn screen_prodtest_welcome() {
@@ -109,7 +113,15 @@ impl ProdtestUI for UICaesar {
         display::refresh();
     }
 
+    // currently has to be here due to clippy limitations
+    #[cfg(feature = "touch")]
     fn screen_prodtest_touch(_area: Rect) {
         unimplemented!();
     }
+
+    // currently has to be here due to clippy limitations
+    #[cfg(feature = "touch")]
+    fn screen_prodtest_draw(events: Vec<TouchEvent, 256>) {
+        unimplemented!()
+    }
 }

core/embed/rust/src/ui/ui_prodtest.rs

@@ -1,4 +1,8 @@
+#[cfg(feature = "touch")]
+use crate::ui::event::TouchEvent;
 use crate::ui::geometry::Rect;
+#[cfg(feature = "touch")]
+use heapless::Vec;
 
 pub trait ProdtestUI {
     fn screen_prodtest_welcome();
@@ -11,5 +15,9 @@ pub trait ProdtestUI {
 
     fn screen_prodtest_bars(colors: &str);
 
+    #[cfg(feature = "touch")]
     fn screen_prodtest_touch(area: Rect);
+
+    #[cfg(feature = "touch")]
+    fn screen_prodtest_draw(events: Vec<TouchEvent, 256>);
 }