Perform LCD panel hardware reset in response to the GPIO reset line

CE-Programming · Nov 22, 2023 · d8fbb9e · d8fbb9e
1 parent 9cb4a1f
commit d8fbb9e
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Showing 3 changed files with 7 additions and 1 deletion.
diff --git a/core/control.c b/core/control.c
@@ -4,6 +4,7 @@
 #include "mem.h"
 #include "cpu.h"
 #include "lcd.h"
+#include "panel.h"
 #include "spi.h"
 #include "bus.h"
 #include "debug/debug.h"
@@ -145,6 +146,9 @@ static void control_write(const uint16_t pio, const uint8_t byte, bool poke) {
                     control.readBatteryStatus = control.setBatteryStatus == BATTERY_DISCHARGED ? 0 : byte & 0x80 ? 0 : 3;
                     break;
             }
+            if ((control.ports[index] & ~byte) >> 2 & 1) {
+                panel_hw_reset();
+            }
             if (asic.python && (control.ports[index] ^ byte) >> 4 & 1) {
                 spi_device_select(byte >> 4 & 1);
             }

diff --git a/core/panel.c b/core/panel.c
@@ -208,8 +208,9 @@ static void panel_sw_reset(void) {
     panel.tear = false;
 }
 
-static void panel_hw_reset(void) {
+void panel_hw_reset(void) {
     panel.mac = 0;
+    panel.ifBpp = 0x66;
     panel_sw_reset();
 }
 

diff --git a/core/panel.h b/core/panel.h
@@ -83,6 +83,7 @@ void panel_reset(void);
 bool panel_restore(FILE *image);
 bool panel_save(FILE *image);
 
+void panel_hw_reset(void);
 bool panel_hsync(void);
 bool panel_vsync(void);
 bool panel_refresh_pixel(void);