Send restart request to uf2d upon usb disconnect

2017-07-26 18:14:26 +01:00
parent 52ef98e249
commit c6b4e506d1
3 changed files with 37 additions and 1 deletions
--- a/brick/uf2daemon/fat.c
+++ b/brick/uf2daemon/fat.c
@ -703,12 +703,23 @@ void restartProgram() {
        exit(0); // causes parent to eject MSD etc
 }

+int numWrites = 0;
 static WriteState wrState;
 void write_block(uint32_t block_no, uint8_t *data) {
    WriteState *state = &wrState;

    UF2_Block *bl = (void *)data;

+    if (bl->magicStart0 == 0x20da6d81 && bl->magicStart1 == 0x747e09d4) {
+        DBG("restart req, #wr=%d", numWrites);
+        if (numWrites) {
+            exit(0);
+        }
+        return;
+    }
+
+    numWrites++;
+
    if (!is_uf2_block(bl)) {
        return;
    }