1 files changed, 35 insertions, 0 deletions
diff --git a/firmware/s1224/include/afsk_profile.h b/firmware/s1224/include/afsk_profile.h
new file mode 100644
index 0000000..da0fc29
--- /dev/null
+++ b/firmware/s1224/include/afsk_profile.h
@@ -0,0 +1,35 @@
+/**
+ * Mark/space tone pairs per build (Hz) — see product README.
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+#ifndef S1224_AFSK_PROFILE_H
+#define S1224_AFSK_PROFILE_H
+
+#include <stdint.h>
+
+#ifndef S1224_BITRATE
+#define S1224_BITRATE 1200
+#endif
+
+typedef struct {
+    uint32_t baud;
+    uint32_t mark_hz;
+    uint32_t space_hz;
+    const char *profile_name;
+} afsk_profile_t;
+
+static inline afsk_profile_t afsk_profile_get(void)
+{
+#if S1224_BITRATE == 300
+    return (afsk_profile_t){300, 1600, 1800, "HF-300 (1600/1800)"};
+#elif S1224_BITRATE == 1200
+    return (afsk_profile_t){1200, 1200, 2200, "Bell202-1200"};
+#elif S1224_BITRATE == 2400
+    /* c1224 Y2 / 6.5536 MHz field overclock class — NOT Dire Wolf 2400 */
+    return (afsk_profile_t){2400, 1775, 3250, "Y2-class-2400"};
+#else
+#error "S1224_BITRATE must be 300, 1200, or 2400"
+#endif
+}
+
+#endif /* S1224_AFSK_PROFILE_H */