1 files changed, 29 insertions, 0 deletions
diff --git a/src/target/firmware/include/gsm.h b/src/target/firmware/include/gsm.h
new file mode 100644
index 00000000..f3250128
--- /dev/null
+++ b/src/target/firmware/include/gsm.h
@@ -0,0 +1,29 @@
+#ifndef _GSM_H
+#define _GSM_H
+
+#include <l1a_l23_interface.h>
+
+enum gsm_band {
+	GSM_850		= 1,
+	GSM_900		= 2,
+	GSM_1800	= 4,
+	GSM_1900	= 8,
+	GSM_450		= 0x10,
+	GSM_480		= 0x20,
+	GSM_750		= 0x40,
+	GSM_810		= 0x80,
+};
+
+#define	ARFCN_PCS	0x8000
+
+enum gsm_band gsm_arfcn2band(uint16_t arfcn);
+
+/* Convert an ARFCN to the frequency in MHz * 10 */
+uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink);
+
+/* Convert from frame number to GSM time */
+void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn);
+
+/* Convert from GSM time to frame number */
+uint32_t gsm_gsmtime2fn(struct gsm_time *time);
+#endif