AirSpyHFIQ: read samples from airspyhf and dump those to fc32 file

3 files changed, 180 insertions, 9 deletions

diff --git a/Radio/HW/AirSpyHF/AirSpyHF.swift b/Radio/HW/AirSpyHF/AirSpyHF.swift
index 3affcff..ea835af 100644
--- a/Radio/HW/AirSpyHF/AirSpyHF.swift
+++ b/Radio/HW/AirSpyHF/AirSpyHF.swift
@@ -7,9 +7,117 @@
 
 import libairspyhf
 
+enum AirspyHFError: Error {
+    case InvalidDevice
+}
+
 /// Wrapper for libairspyhf library
 class AirSpyHF {
-    init() {
-        //airspyhf_
+    
+    var dev:UnsafeMutablePointer<airspyhf_device_t>? = .allocate(capacity: 1)
+    
+    /*
+     init() {
+     
+     }*/
+    
+    /// Initialise by index
+    init(idx: Int32) throws {
+        let ndev = airspyhf_list_devices(nil, 0)
+        if ((idx < 0) || (idx >= ndev)) {
+            throw AirspyHFError.InvalidDevice
+        }
+        let serialPtr: UnsafeMutablePointer<UInt64> = .allocate(capacity: 1)
+        airspyhf_list_devices(serialPtr, idx+1)
+        if serialPtr.pointee == 0 {
+            print("Cant get serial number of device index \(idx)")
+            throw AirspyHFError.InvalidDevice
+        }
+        try openSN(serial: serialPtr.pointee)
+        
+    }
+    
+    func openSN(serial: UInt64) throws  {
+        let ret = airspyhf_open_sn(&dev, serial)
+        print("ret=\(ret)")
+        if (ret != AIRSPYHF_SUCCESS.rawValue) {
+            print("Cant open device with serial numner \(serial)")
+            throw AirspyHFError.InvalidDevice
+        }
+    }
+    
+    /*
+     /// Initialise by serial number
+     init(serial: UInt64) {
+     
+     }*/
+    
+    func getSampleRates() -> [UInt32] {
+        var sample_rates:[UInt32] = []
+        var ret: Int32
+        
+        let nsrate = UnsafeMutablePointer<UInt32>.allocate(capacity: 1)
+        ret = airspyhf_get_samplerates(dev, nsrate, 0)
+        if ret == AIRSPYHF_ERROR.rawValue {
+            print("Error uptaining the sample number")
+            return []
+        }
+        
+        let sampleBuffer = UnsafeMutableBufferPointer<UInt32>.allocate(capacity: Int(nsrate.pointee))
+        let rawPointer = UnsafeMutablePointer<UInt32>?(sampleBuffer.baseAddress!)
+        ret = airspyhf_get_samplerates(dev, rawPointer, nsrate.pointee)
+        if (ret == AIRSPYHF_ERROR.rawValue) {
+            print("Error geting sample rates. Not processed")
+        }
+        print("Found \(nsrate.pointee) samplerates")
+        for idx in 0..<nsrate.pointee {
+            sample_rates.append(sampleBuffer[Int(idx)])
+        }
+        
+        return sample_rates
+    }
+    
+    func setSampleRate(_ samplerate:UInt32) -> Int32 {
+        let ret = airspyhf_set_samplerate(dev, samplerate)
+        return ret
+    }
+    
+    func setHfAgc(_ flag: UInt8) -> Int32{
+        let ret = airspyhf_set_hf_agc(dev, flag)
+        return ret
+    }
+    
+    func setHfAgcThreshold(_ flag: UInt8) -> Int32 {
+        let ret = airspyhf_set_hf_agc_threshold(dev, flag)
+        return ret
+    }
+    
+    func setHfLNA(_ flag: UInt8) -> Int32 {
+        let ret = airspyhf_set_hf_lna(dev, flag)
+        return ret
+    }
+    
+    func start(_ callback: airspyhf_sample_block_cb_fn) -> Int32 {
+        let ret = airspyhf_start(dev, callback, nil)
+        return ret
+    }
+    
+    func stop() -> Int32 {
+        let ret = airspyhf_stop(dev)
+        return ret
+    }
+    
+    func setFreq(_ frequency: UInt32) -> Int32 {
+        let ret = airspyhf_set_freq(dev, frequency)
+        return ret
+    }
+    
+    func isStreaming() -> Int32 {
+        let ret = airspyhf_is_streaming(dev)
+        return ret
+    }
+    
+    func close() {
+        airspyhf_close(dev)
     }
 }
diff --git a/Radio/HW/AirSpyHF/src/airspyhf.c b/Radio/HW/AirSpyHF/src/airspyhf.c
index efacd03..c5ca337 100644
--- a/Radio/HW/AirSpyHF/src/airspyhf.c
+++ b/Radio/HW/AirSpyHF/src/airspyhf.c
@@ -28,6 +28,7 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 #define _CRT_SECURE_NO_WARNINGS

 #endif

 

+#include <stdbool.h>

 #include <stdio.h>

 #include <stdlib.h>

 #include <string.h>

@@ -55,9 +56,9 @@ typedef int bool;
 #define SAMPLES_TO_TRANSFER (1024 * 2)

 #define SERIAL_NUMBER_UNUSED (0)

 #define FILE_DESCRIPTOR_UNUSED (-1)

-#define RAW_BUFFER_COUNT (8)

 #define AIRSPYHF_SERIAL_SIZE (28)

 

+

 #define MAX_SAMPLERATE_INDEX (100)

 #define DEFAULT_SAMPLERATE (768000)

 

@@ -81,15 +82,10 @@ static const char str_prefix_serial_airspyhf[STR_PREFIX_SERIAL_AIRSPYHF_SIZE] =
 

 #define IQ_BALANCER_EVAL_SKIP (RAW_BUFFER_COUNT)

 

-#pragma pack(push,1)

 

-typedef struct {

-	int16_t im;

-	int16_t re;

-} airspyhf_complex_int16_t;

 

-#pragma pack(pop)

 

+/*

 typedef struct airspyhf_device

 {

 	libusb_context* usb_context;

@@ -136,6 +132,7 @@ typedef struct airspyhf_device
 	airspyhf_complex_float_t *output_buffer;

 	void* ctx;

 } airspyhf_device_t;

+*/

 

 typedef struct flash_config

 {

diff --git a/Radio/HW/AirSpyHF/src/airspyhf.h b/Radio/HW/AirSpyHF/src/airspyhf.h
index 2879120..d58a84a 100644
--- a/Radio/HW/AirSpyHF/src/airspyhf.h
+++ b/Radio/HW/AirSpyHF/src/airspyhf.h
@@ -26,7 +26,14 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 #ifndef __AIRSPYHF_H__
 #define __AIRSPYHF_H__
 
+#include <stdbool.h>
 #include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "libusb.h"
+#include <pthread.h>
+#include <math.h>
 
 #define AIRSPYHF_VERSION "1.8.0"
 #define AIRSPYHF_VER_MAJOR 1
@@ -61,6 +68,8 @@ extern "C"
 {
 #endif
 
+#define RAW_BUFFER_COUNT (8)
+
 enum airspyhf_error
 {
 	AIRSPYHF_SUCCESS = 0,
@@ -86,6 +95,13 @@ enum airspyhf_board_id
 	AIRSPYHF_BOARD_ID_INVALID = 0xFF,
 };
 
+#pragma pack(push,1)
+typedef struct {
+    int16_t im;
+    int16_t re;
+} airspyhf_complex_int16_t;
+#pragma pack(pop)
+
 typedef struct airspyhf_device airspyhf_device_t;
 
 typedef struct {
@@ -96,6 +112,7 @@ typedef struct {
 	uint64_t dropped_samples;
 } airspyhf_transfer_t;
 
+
 typedef struct {
 	uint32_t major_version;
 	uint32_t minor_version;
@@ -107,6 +124,55 @@ typedef struct {
 
 typedef int (*airspyhf_sample_block_cb_fn) (airspyhf_transfer_t* transfer_fn);
 
+
+
+typedef struct airspyhf_device
+{
+    libusb_context* usb_context;
+    libusb_device_handle* usb_device;
+    struct libusb_transfer** transfers;
+    airspyhf_sample_block_cb_fn callback;
+    pthread_t transfer_thread;
+    pthread_t consumer_thread;
+    bool transfer_thread_running;
+    bool consumer_thread_running;
+    pthread_cond_t consumer_cv;
+    pthread_mutex_t consumer_mp;
+    uint32_t supported_samplerate_count;
+    uint32_t *supported_samplerates;
+    uint8_t *samplerate_architectures;
+    uint32_t supported_att_step_count;
+    float *supported_att_steps;
+    volatile uint32_t current_samplerate;
+    volatile double freq_hz;
+    volatile uint32_t freq_khz;
+    volatile double freq_delta_hz;
+    volatile double freq_shift;
+    volatile int32_t calibration_ppb;
+    volatile int32_t calibration_vctcxo;
+    volatile uint32_t frontend_options;
+    volatile float optimal_point;
+    uint8_t enable_dsp;
+    uint8_t is_low_if;
+    float filter_gain;
+    airspyhf_complex_float_t vec;
+    struct iq_balancer_t *iq_balancer;
+    volatile int32_t iq_balancer_eval_skip;
+    uint32_t transfer_count;
+    int32_t transfer_live;
+    uint32_t buffer_size;
+    uint32_t dropped_buffers;
+    uint32_t dropped_buffers_queue[RAW_BUFFER_COUNT];
+    airspyhf_complex_int16_t *received_samples_queue[RAW_BUFFER_COUNT];
+    volatile bool streaming;
+    volatile bool stop_requested;
+    volatile int received_samples_queue_head;
+    volatile int received_samples_queue_tail;
+    volatile int received_buffer_count;
+    airspyhf_complex_float_t *output_buffer;
+    void* ctx;
+} airspyhf_device_t;
+
 extern ADDAPI void ADDCALL airspyhf_lib_version(airspyhf_lib_version_t* lib_version);
 extern ADDAPI int ADDCALL airspyhf_list_devices(uint64_t *serials, int count);
 extern ADDAPI int ADDCALL airspyhf_open(airspyhf_device_t** device);