1 files changed, 99 insertions, 0 deletions
diff --git a/source/stmdsp/stmdsp.hpp b/source/stmdsp/stmdsp.hpp
new file mode 100644
index 0000000..8da98f2
--- /dev/null
+++ b/source/stmdsp/stmdsp.hpp
@@ -0,0 +1,99 @@
+/**
+ * @file stmdsp.hpp
+ * @brief Interface for communication with stmdsp device over serial.
+ *
+ * Copyright (C) 2021 Clyne Sullivan
+ *
+ * Distributed under the GNU GPL v3 or later. You should have received a copy of
+ * the GNU General Public License along with this program.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef STMDSP_HPP_
+#define STMDSP_HPP_
+
+#include <cstdint>
+#include <list>
+#include <serial/serial.h>
+#include <string>
+
+namespace stmdsp
+{
+    constexpr unsigned int SAMPLES_MAX = 4096;
+
+    class scanner
+    {
+    private:
+        constexpr static const char *STMDSP_USB_ID =
+#ifndef STMDSP_WIN32
+            "USB VID:PID=0483:5740";
+#else
+            "USB\\VID_0483&PID_5740";
+#endif
+
+    public:
+        std::list<std::string>& scan();
+        auto& devices() {
+            return m_available_devices;
+        }
+
+    private:
+        std::list<std::string> m_available_devices;
+    };
+
+    using adcsample_t = uint16_t;
+    using dacsample_t = uint16_t;
+
+    enum class platform {
+        Unknown,
+        H7,
+        L4,
+        G4
+    };
+
+    class device
+    {
+    public:
+        device(const std::string& file);
+
+        ~device() {
+            m_serial.close();
+        }
+
+        bool connected() {
+            return m_serial.isOpen();
+        }
+
+        auto get_platform() const { return m_platform; }
+        void continuous_set_buffer_size(unsigned int size);
+        unsigned int get_buffer_size() const { return m_buffer_size; }
+        void set_sample_rate(unsigned int id);
+        unsigned int get_sample_rate();
+        void continuous_start();
+        void continuous_start_measure();
+        uint32_t continuous_start_get_measurement();
+        std::vector<adcsample_t> continuous_read();
+        std::vector<adcsample_t> continuous_read_input();
+        void continuous_stop();
+
+        void siggen_upload(dacsample_t *buffer, unsigned int size);
+        void siggen_start();
+        void siggen_stop();
+        bool is_siggening() const { return m_is_siggening; }
+        bool is_running() const { return m_is_running; }
+
+        // buffer is ELF binary
+        void upload_filter(unsigned char *buffer, size_t size);
+        void unload_filter();
+
+    private:
+        serial::Serial m_serial;
+        platform m_platform = platform::Unknown;
+        unsigned int m_buffer_size = SAMPLES_MAX;
+        bool m_is_siggening = false;
+        bool m_is_running = false;
+    };
+}
+
+#endif // STMDSP_HPP_
+