From df5dcb3dc1e004a6baa297429819932848d56968 Mon Sep 17 00:00:00 2001
From: Ryan Summers <ryan.summers@vertigo-designs.com>
Date: Wed, 3 Jun 2020 17:15:57 +0200
Subject: [PATCH] Adding support for modifying IIR state

---
 src/main.rs   | 22 ++++++++++++++++++++++
 src/server.rs |  7 +++++++
 2 files changed, 29 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 06f99e4..ce36e86 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -627,6 +627,28 @@ const APP: () = {
                             ],
 
                             modifiable_attributes: [
+                                ("stabilizer/iir0/state", server::IirRequest, (|req: server::IirRequest| {
+                                    c.resources.iir_ch.lock(|iir_ch| {
+                                        if req.channel > 1 {
+                                            return Err(());
+                                        }
+
+                                        iir_ch[req.channel as usize] = req.iir;
+
+                                        Ok::<server::IirRequest, ()>(req)
+                                    })
+                                })),
+                                ("stabilizer/iir1/state", server::IirRequest, (|req: server::IirRequest| {
+                                    c.resources.iir_ch.lock(|iir_ch| {
+                                        if req.channel > 1 {
+                                            return Err(());
+                                        }
+
+                                        iir_ch[req.channel as usize] = req.iir;
+
+                                        Ok::<server::IirRequest, ()>(req)
+                                    })
+                                })),
                                 ("stabilizer/afe0/gain", afe::Gain, (|gain| {
                                     Ok::<(), ()>(c.resources.afe0.set_gain(gain))
                                 })),
diff --git a/src/server.rs b/src/server.rs
index c0e46cd..68edafe 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -18,6 +18,7 @@ use serde_json_core::{
 };
 
 use super::net;
+use super::iir;
 
 #[derive(Deserialize, Serialize, Debug)]
 pub enum Request<'a, 'b> {
@@ -25,6 +26,12 @@ pub enum Request<'a, 'b> {
     Write{attribute: &'a str, value: &'b str},
 }
 
+#[derive(Serialize, Deserialize)]
+pub struct IirRequest {
+    pub channel: u8,
+    pub iir: iir::IIR,
+}
+
 #[derive(Serialize)]
 pub struct Response {
     code: i32,