From 84c0fbfa2a68dc3c29b989947567d111e70a037b Mon Sep 17 00:00:00 2001
From: Joey Castillo <jose.castillo@gmail.com>
Date: Fri, 1 Oct 2021 17:09:05 -0400
Subject: slcd: add autonomous blinking and animation

---
 watch-library/watch/watch_slcd.c | 49 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

(limited to 'watch-library/watch/watch_slcd.c')

diff --git a/watch-library/watch/watch_slcd.c b/watch-library/watch/watch_slcd.c
index ba9d12b2..58e1da7f 100644
--- a/watch-library/watch/watch_slcd.c
+++ b/watch-library/watch/watch_slcd.c
@@ -23,6 +23,7 @@
  */
 
 #include "watch_slcd.h"
+#include "hpl_slcd_config.h"
 
  //////////////////////////////////////////////////////////////////////////////////////////
 // Segmented Display
@@ -149,6 +150,10 @@ static const uint32_t IndicatorSegments[6] = {
     SLCD_SEGID(1, 10), // WATCH_INDICATOR_LAP
 };
 
+void _sync_slcd() {
+    while (SLCD->SYNCBUSY.reg);
+}
+
 void watch_enable_display() {
     SEGMENT_LCD_0_init();
     slcd_sync_enable(&SEGMENT_LCD_0);
@@ -218,3 +223,47 @@ void watch_clear_all_indicators() {
     slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(0, 16));
     slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(1, 10));
 }
+
+void watch_start_character_blink(char character, uint32_t duration) {
+    SLCD->CTRLD.bit.FC0EN = 0;
+    _sync_slcd();
+
+    if (duration <= SLCD_FC_BYPASS_MAX_MS) {
+        SLCD->FC0.reg = SLCD_FC0_PB | ((duration / (1000 / SLCD_FRAME_FREQUENCY)) - 1);
+    } else {
+        SLCD->FC0.reg = (((duration / (1000 / SLCD_FRAME_FREQUENCY)) / 8 - 1));
+    }
+    SLCD->CTRLD.bit.FC0EN = 1;
+
+    watch_display_character(character, 7);
+    watch_clear_pixel(2, 10); // clear segment B of position 7 since it can't blink
+
+    SLCD->CTRLD.bit.BLINK = 0;
+    SLCD->CTRLA.bit.ENABLE = 0;
+    _sync_slcd();
+
+    SLCD->BCFG.bit.BSS0 = 0x07;
+    SLCD->BCFG.bit.BSS1 = 0x07;
+
+    SLCD->CTRLD.bit.BLINK = 1;
+    _sync_slcd();
+    SLCD->CTRLA.bit.ENABLE = 1;
+    _sync_slcd();
+}
+
+void watch_stop_blink() {
+    SLCD->CTRLD.bit.FC0EN = 0;
+    SLCD->CTRLD.bit.BLINK = 0;
+}
+
+void watch_start_tick_animation(uint32_t duration) {
+    watch_display_character(' ', 8);
+    const uint32_t segs[] = { SLCD_SEGID(0, 2)};
+    slcd_sync_start_animation(&SEGMENT_LCD_0, segs, 1, duration);
+}
+
+void watch_stop_tick_animation() {
+    const uint32_t segs[] = { SLCD_SEGID(0, 2)};
+    slcd_sync_stop_animation(&SEGMENT_LCD_0, segs, 1);
+    watch_display_character(' ', 8);
+}
-- 
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