+INLINE hptime_t get_hp_ticks(void)
+{
+ return (TIMER_HW_CNT - timer_hw_hpread()) +
+ timer_clock_unlocked() * TIMER_HW_CNT;
+}
+
+static void NORETURN res_process(void)
+{
+ const char spinner[] = {'/', '-', '\\', '|'};
+ char buffer[256], c;
+ int i;
+
+ for (i = 0; ; i++)
+ {
+ ticks_t clock;
+
+ sig_wait(SIG_USER0);
+ clock = timer_clock_unlocked();
+
+ /* Display uptime (in ticks) */
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ "uptime: %lu sec", clock / 1000);
+ text_xprintf(&bm, 2, 0, TEXT_FILL, buffer);
+
+ /* Show context switch (in clock cycles) */
+ c = spinner[i % countof(spinner)];
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ "%c Context switch %c", c, c);
+ text_xprintf(&bm, 4, 0, TEXT_CENTER | TEXT_FILL, buffer);
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ " %lu clock cycles", end - start);
+ text_xprintf(&bm, 6, 0, TEXT_FILL, buffer);
+
+ /* Show context switch (in usec) */
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ " %lu.%lu usec",
+ ((end - start) * 1000000) / CPU_FREQ,
+ ((end - start) * (100000000 / CPU_FREQ)) % 100);
+ text_xprintf(&bm, 7, 0, TEXT_FILL, buffer);
+ rit128x96_lcd_blitBitmap(&bm);
+
+ /* Blink the status LED and restart the test */
+ led_off();
+ timer_delay(100);
+ led_on();
+ sig_send(lp_proc, SIG_USER0);
+ }
+}
+
+static void NORETURN hp_process(void)
+{
+ while (1)
+ {
+ sig_wait(SIG_USER0);
+ end = get_hp_ticks();
+ sig_send(res_proc, SIG_USER0);
+ }
+}
+
+static void NORETURN lp_process(void)
+{
+ while (1)
+ {
+ start = get_hp_ticks();
+ sig_send(hp_proc, SIG_USER0);
+ sig_wait(SIG_USER0);
+ }
+}
+
+/**
+ * Show the splash screen
+ */
+static void bouncing_logo(Bitmap *bm)
+{
+ const long SPEED_SCALE = 1000;
+ const long GRAVITY_ACCEL = 100;
+ const long BOUNCE_ELASTICITY = 2;
+ const long TOT_FRAMES = 100;
+ long h = (long)(-bertos_logo.height) * SPEED_SCALE;
+ long speed = 0, i;
+
+ for (i = 0; i < TOT_FRAMES; i++)
+ {
+ /* Move */
+ h += speed;
+
+ /* Gravity acceleration */
+ speed += GRAVITY_ACCEL;
+
+ if (h > 0 && speed > 0)
+ {
+ /* Bounce */
+ speed = -(speed / BOUNCE_ELASTICITY);
+
+ }
+ /* Update graphics */
+ gfx_bitmapClear(bm);
+ gfx_blitImage(bm,
+ (LCD_WIDTH - bertos_logo.width) / 2,
+ (LCD_HEIGHT - bertos_logo.height) / 2 + h / SPEED_SCALE,
+ &bertos_logo);
+ rit128x96_lcd_blitBitmap(bm);
+ timer_delay(5);
+ }
+}
+