From ba0aeee005d5fdaaab59cd7c099a237f51eddc86 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sat, 31 Dec 2022 14:36:18 +0100
Subject: Create project

---
 src/fl2k.rs | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/fl2k.rs

(limited to 'src/fl2k.rs')

diff --git a/src/fl2k.rs b/src/fl2k.rs
new file mode 100644
index 0000000..7bade50
--- /dev/null
+++ b/src/fl2k.rs
@@ -0,0 +1,52 @@
+use std::ffi::c_int;
+use fl2k_ampliphase::{fl2k_dev_t, fl2k_get_device_count, fl2k_open, fl2k_close};
+
+enum FL2KError {
+    InvalidParam,
+    NoDevice,
+    NotFound,
+    Busy,
+    Timeout,
+    NoMem,
+    Unknown(c_int)
+}
+
+fn handle_return_value(val : c_int) -> Result<(), FL2KError> {
+    match val {
+        #![allow(non_snake_case)]
+        fl2k_error_FL2K_SUCCESS => Ok(()),
+        fl2k_error_FL2K_TRUE => Ok(()),
+        fl2k_error_FL2K_ERROR_INVALID_PARAM => Err(FL2KError::InvalidParam),
+        fl2k_error_FL2K_ERROR_NO_DEVICE => Err(FL2KError::NoDevice),
+        fl2k_error_FL2K_ERROR_NOT_FOUND => Err(FL2KError::NotFound),
+        fl2k_error_FL2K_ERROR_BUSY => Err(FL2KError::Busy),
+        fl2k_error_FL2K_ERROR_TIMEOUT => Err(FL2KError::Timeout),
+        fl2k_error_FL2K_ERROR_NO_MEM => Err(FL2KError::NoMem),
+        v => Err(FL2KError::Unknown(v)),
+    }
+}
+
+pub fn get_device_count() -> u32 {
+    unsafe { fl2k_get_device_count() }
+}
+
+struct FL2K {
+    device : *mut fl2k_dev_t,
+}
+
+impl FL2K {
+    pub fn open(device_index : u32) -> Result<Self, FL2KError> {
+        unsafe {
+            let mut fl2k = FL2K { device: std::mem::zeroed() };
+            handle_return_value(fl2k_open(&mut fl2k.device, device_index))?;
+            Ok(fl2k)
+        }
+    }
+
+    pub fn close(self) -> Result<(), FL2KError> {
+        unsafe {
+            handle_return_value(fl2k_close(self.device))?;
+        }
+        Ok(())
+    }
+}
-- 
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