bootloader: small UI nitpicks

embed/bootloader/bootui.c

@@ -56,10 +56,10 @@ void ui_screen_boot(const vendor_header *vhdr, const image_header *hdr)
     display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 25, ver_str, -1, FONT_NORMAL, COLOR_BL_GRAY, background, 0);
 }
 
-void ui_screen_boot_wait(int delay)
+void ui_screen_boot_wait(int wait_seconds)
 {
     char wait_str[16];
-    mini_snprintf(wait_str, sizeof(wait_str), "waiting for %ds", delay);
+    mini_snprintf(wait_str, sizeof(wait_str), "waiting for %ds", wait_seconds);
     display_bar(0, DISPLAY_RESY - 2 - 18, DISPLAY_RESX, 2 + 18, COLOR_BLACK);
     display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 2, wait_str, -1, FONT_NORMAL, COLOR_BL_GRAY, COLOR_BLACK, 0);
 }
@@ -194,12 +194,12 @@ void ui_screen_wipe_progress(int pos, int len)
 
 // done UI
 
-void ui_screen_done(int restart)
+void ui_screen_done(int restart_seconds)
 {
     const char *str;
-    if (restart <= 3 && restart >= 1) {
+    if (restart_seconds >= 1) {
         char count_str[24];
-        mini_snprintf(count_str, sizeof(count_str), "Done! Restarting in %ds", restart);
+        mini_snprintf(count_str, sizeof(count_str), "Done! Restarting in %ds", restart_seconds);
         str = count_str;
     } else {
         str = "Done! Unplug the device.";

embed/bootloader/bootui.h

@@ -5,7 +5,7 @@
 #include "image.h"
 
 void ui_screen_boot(const vendor_header * const vhdr, const image_header * const hdr);
-void ui_screen_boot_wait(int delay);
+void ui_screen_boot_wait(int wait_seconds);
 void ui_screen_boot_click(void);
 
 void ui_screen_first(void);
@@ -22,7 +22,7 @@ void ui_screen_wipe_confirm(void);
 void ui_screen_wipe(void);
 void ui_screen_wipe_progress(int pos, int len);
 
-void ui_screen_done(int restart);
+void ui_screen_done(int restart_seconds);
 
 void ui_screen_fail(void);
 

embed/bootloader/main.c

@@ -128,10 +128,14 @@ static secbool bootloader_usb_loop(const vendor_header * const vhdr, const image
                 process_msg_Ping(USB_IFACE_NUM, msg_size, buf);
                 break;
             case 5: // WipeDevice
+                ui_fadeout();
                 ui_screen_wipe_confirm();
+                ui_fadein();
                 response = ui_button_response();
                 if (sectrue != response) {
+                    ui_fadeout();
                     ui_screen_info(secfalse, vhdr, hdr);
+                    ui_fadein();
                     send_user_abort(USB_IFACE_NUM, "Wipe cancelled");
                     break;
                 }
@@ -140,12 +144,16 @@ static secbool bootloader_usb_loop(const vendor_header * const vhdr, const image
                 ui_fadein();
                 r = process_msg_WipeDevice(USB_IFACE_NUM, msg_size, buf);
                 if (r < 0) { // error
+                    ui_fadeout();
                     ui_screen_fail();
+                    ui_fadein();
                     usb_stop();
                     usb_deinit();
                     return secfalse; // shutdown
                 } else { // success
+                    ui_fadeout();
                     ui_screen_done(0);
+                    ui_fadein();
                     usb_stop();
                     usb_deinit();
                     return secfalse; // shutdown
@@ -154,10 +162,14 @@ static secbool bootloader_usb_loop(const vendor_header * const vhdr, const image
             case 6: // FirmwareErase
                 // skip confirmation when no firmware is present
                 if (vhdr && hdr) {
+                    ui_fadeout();
                     ui_screen_install_confirm();
+                    ui_fadein();
                     response = ui_button_response();
                     if (sectrue != response) {
+                        ui_fadeout();
                         ui_screen_info(secfalse, vhdr, hdr);
+                        ui_fadein();
                         send_user_abort(USB_IFACE_NUM, "Firmware install cancelled");
                         break;
                     }
@@ -170,15 +182,23 @@ static secbool bootloader_usb_loop(const vendor_header * const vhdr, const image
             case 7: // FirmwareUpload
                 r = process_msg_FirmwareUpload(USB_IFACE_NUM, msg_size, buf);
                 if (r < 0) { // error
+                    ui_fadeout();
                     ui_screen_fail();
+                    ui_fadein();
                     usb_stop();
                     usb_deinit();
                     return secfalse; // shutdown
                 } else
                 if (r == 0) { // last chunk received
-                    ui_screen_done(3); hal_delay(1000);
-                    ui_screen_done(2); hal_delay(1000);
-                    ui_screen_done(1); hal_delay(1000);
+                    ui_fadeout();
+                    ui_screen_done(4);
+                    ui_fadein();
+                    ui_screen_done(3);
+                    hal_delay(1000);
+                    ui_screen_done(2);
+                    hal_delay(1000);
+                    ui_screen_done(1);
+                    hal_delay(1000);
                     usb_stop();
                     usb_deinit();
                     ui_fadeout();