automatically embedding version numbers (#53)

.github/workflows/build.yaml

@@ -16,6 +16,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # fetch tags for versioning
 
       - name: Cache toolchain
         id: cache-toolchain

Makefile

@@ -15,6 +15,15 @@ TARGET = badgemagic-ch582
 OPT = -Os
 
 
+#######################################
+# Get current version
+#######################################
+VERSION = $(shell git describe --tags --dirty)
+VERSION_ABBR = $(shell git describe --abbrev=0 --tags 2>/dev/null || echo "unknown")
+ifeq ($(VERSION_ABBR),unknown)
+	$(warning Unable to determine version from git tags)
+endif
+
 #######################################
 # paths
 #######################################
@@ -127,6 +136,7 @@ ifeq ($(USBC_VERSION), 1)
 CFLAGS += -DUSBC_VERSION=$(USBC_VERSION)
 endif
 
+CFLAGS += -DVERSION='"$(VERSION)"' -DVERSION_ABBR='"$(VERSION_ABBR)"'
 
 # Generate dependency information
 CFLAGS += -MMD -MP

src/ble/profile/devinfo.c

@@ -5,17 +5,25 @@
 static const uint8_t    systemId_val[] = {0, 0, 0, 0, 0, 0, 0, 0};
 static const uint16_t   systemId_UUID = SYSTEM_ID_UUID;
 
-static const uint8_t    modelNumber_val[] = "B1144";
+#ifdef USBC_VERSION
+#define USBC_VER_PREFIX "(C) "
+#define USBC_VER_SUFIX "-C"
+#else
+#define USBC_VER_PREFIX ""
+#define USBC_VER_SUFIX ""
+#endif
+
+static const uint8_t    modelNumber_val[] = "BM1144" USBC_VER_SUFIX;
 static const uint16_t   modelNumber_UUID = MODEL_NUMBER_UUID;
 
 const uint16_t          serialNumber_UUID = SERIAL_NUMBER_UUID;
 static const uint8_t    serialNumber_val[] = "N/A";
 
 const uint16_t          firmwareRev_UUID = FIRMWARE_REV_UUID;
-static const uint8_t    firmwareRev_val[] = "v0.0.1";
+static const uint8_t    firmwareRev_val[] = USBC_VER_PREFIX VERSION;
 
 const uint16_t          hardwareRev_UUID = HARDWARE_REV_UUID;
-static const uint8_t    hardwareRev_val[] = "221028";
+static const uint8_t    hardwareRev_val[] = "20240908";
 
 const uint16_t          softwareRev_UUID = SOFTWARE_REV_UUID;
 static const uint8_t    softwareRev_val[] = "N/A";

src/main.c

@@ -425,7 +425,7 @@ static void disp_charging()
 		if (is_charging()) {
 			disp_bat_stt(blink ? percent : 0, 2, 2);
 			if (ani_xbm_next_frame(&fabm_xbm, fb, 16, 0) == 0) {
-				fb_puts("v0.1", 4, 16, 2); // TODO: get version from git tag
+				fb_puts(VERSION_ABBR, sizeof(VERSION_ABBR), 16, 2);
 				fb_putchar(' ', 40, 2);
 			}
 			blink = !blink;

src/usb/dev.c

@@ -53,16 +53,30 @@ static uint16_t product_info[] = {
 	'M', 'a', 'g', 'i', 'c'
 };
 
-// TODO: auto update firmware version by CI here
 static uint16_t serial_number[] = {
-	47 * 2 | /* bLength */
+#ifdef USBC_VERSION
+	4 +
+#endif
+	(12 + sizeof(VERSION_ABBR) - 1) * 2 | /* bLength */
 	0x03 << 8, /* bDescriptorType */
 
 	/* bString */
-	'N', 'o', 't', ' ', 'y', 'e', 't', ' ',
-	'i', 'm', 'p', 'l', 'e', 'm', 'e', 'n', 't', 'e', 'd', '\n',
-	'P', 'R', 'E', 'S', 'S', ' ', 'A', 'L', 'T', '+', 'F', '4', ' ',
-	'T', 'O', ' ', 'C', 'O', 'N', 'T', 'I', 'N', 'U', 'E', '.'
+	'B', 'M', '1', '1', '4', '4', 
+#ifdef USBC_VERSION
+	'-', 'C',
+#endif
+	' ',
+	'f', 'w', ':',' ',
+	/* vX.Y */
+	VERSION[0],
+	VERSION[1],
+	VERSION[2],
+	VERSION[3],
+	VERSION[4],
+	VERSION[5],
+	VERSION[6],
+	VERSION[7],
+	VERSION[8]
 };
 
 static void desc_dev(USB_SETUP_REQ *request)