1 files changed, 70 insertions, 0 deletions
diff --git a/src/rtl_fm.h b/src/rtl_fm.h
new file mode 100644
index 0000000..f5b2a86
--- /dev/null
+++ b/src/rtl_fm.h
@@ -0,0 +1,70 @@
+/*
+ * rtl-sdr, turns your Realtek RTL2832 based DVB dongle into a SDR receiver
+ * Copyright (C) 2016, 2017 Konsulko Group
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef RTL_FM_H
+#define RTL_FM_H
+
+#include <stdint.h>
+
+#define RTL_FM_DEFAULT_BUF_LENGTH	(1 * 16384)
+#define RTL_FM_MAXIMUM_OVERSAMPLE	16
+#define RTL_FM_MAXIMUM_BUF_LENGTH	(RTL_FM_MAXIMUM_OVERSAMPLE * RTL_FM_DEFAULT_BUF_LENGTH)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*rtl_fm_output_fn_t)(int16_t *result, int result_len, void *data);
+
+int rtl_fm_init(uint32_t freq,
+		uint32_t sample_rate,
+		uint32_t resample_rate,
+		rtl_fm_output_fn_t output_fn,
+		void *output_fn_data);
+
+void rtl_fm_start(void);
+
+void rtl_fm_set_freq(uint32_t freq);
+
+void rtl_fm_set_freq_callback(void (*callback)(uint32_t, void *),
+			      void *data);
+
+uint32_t rtl_fm_get_freq(void);
+
+void rtl_fm_stop(void);
+
+void rtl_fm_scan_start(int direction,
+		       void (*callback)(uint32_t, void *),
+		       void *data,
+		       uint32_t step,
+		       uint32_t min,
+		       uint32_t max);
+
+void rtl_fm_scan_stop(void);
+
+void rtl_fm_scan_set_squelch_level(int level);
+
+void rtl_fm_scan_set_squelch_limit(int count);
+
+void rtl_fm_cleanup(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTL_FM_H */