Merge pull request #1555 from xoviat/old-tl-mbox

wip: old tl mbox

embassy-stm32-wpan/Cargo.toml

@@ -0,0 +1,39 @@
+[package]
+name = "embassy-stm32-wpan"
+version = "0.1.0"
+edition = "2021"
+license = "MIT OR Apache-2.0"
+
+[dependencies]
+embassy-stm32 = { version = "0.1.0", path = "../embassy-stm32" }
+embassy-sync = { version = "0.2.0", path = "../embassy-sync" }
+embassy-time = { version = "0.1.0", path = "../embassy-time", optional = true }
+embassy-futures = { version = "0.1.0", path = "../embassy-futures" }
+embassy-hal-common = { version = "0.1.0", path = "../embassy-hal-common" }
+embassy-embedded-hal = { version = "0.1.0", path = "../embassy-embedded-hal" }
+
+defmt = { version = "0.3", optional = true }
+cortex-m = "0.7.6"
+heapless = "0.7.16"
+
+bit_field = "0.10.2"
+
+[features]
+defmt = ["dep:defmt", "embassy-sync/defmt", "embassy-embedded-hal/defmt", "embassy-hal-common/defmt"]
+
+stm32wb10cc = [ "embassy-stm32/stm32wb10cc" ]
+stm32wb15cc = [ "embassy-stm32/stm32wb15cc" ]
+stm32wb30ce = [ "embassy-stm32/stm32wb30ce" ]
+stm32wb35cc = [ "embassy-stm32/stm32wb35cc" ]
+stm32wb35ce = [ "embassy-stm32/stm32wb35ce" ]
+stm32wb50cg = [ "embassy-stm32/stm32wb50cg" ]
+stm32wb55cc = [ "embassy-stm32/stm32wb55cc" ]
+stm32wb55ce = [ "embassy-stm32/stm32wb55ce" ]
+stm32wb55cg = [ "embassy-stm32/stm32wb55cg" ]
+stm32wb55rc = [ "embassy-stm32/stm32wb55rc" ]
+stm32wb55re = [ "embassy-stm32/stm32wb55re" ]
+stm32wb55rg = [ "embassy-stm32/stm32wb55rg" ]
+stm32wb55vc = [ "embassy-stm32/stm32wb55vc" ]
+stm32wb55ve = [ "embassy-stm32/stm32wb55ve" ]
+stm32wb55vg = [ "embassy-stm32/stm32wb55vg" ]
+stm32wb55vy = [ "embassy-stm32/stm32wb55vy" ]

embassy-stm32-wpan/build.rs

@@ -0,0 +1,34 @@
+use std::env;
+
+fn main() {
+    match env::vars()
+        .map(|(a, _)| a)
+        .filter(|x| x.starts_with("CARGO_FEATURE_STM32"))
+        .get_one()
+    {
+        Ok(_) => {}
+        Err(GetOneError::None) => panic!("No stm32xx Cargo feature enabled"),
+        Err(GetOneError::Multiple) => panic!("Multiple stm32xx Cargo features enabled"),
+    }
+}
+
+enum GetOneError {
+    None,
+    Multiple,
+}
+
+trait IteratorExt: Iterator {
+    fn get_one(self) -> Result<Self::Item, GetOneError>;
+}
+
+impl<T: Iterator> IteratorExt for T {
+    fn get_one(mut self) -> Result<Self::Item, GetOneError> {
+        match self.next() {
+            None => Err(GetOneError::None),
+            Some(res) => match self.next() {
+                Some(_) => Err(GetOneError::Multiple),
+                None => Ok(res),
+            },
+        }
+    }
+}

embassy-stm32-wpan/src/ble.rs

@@ -1,26 +1,26 @@
-use embassy_futures::block_on;
+use core::mem::MaybeUninit;
 
-use super::cmd::CmdSerial;
+use embassy_stm32::ipcc::Ipcc;
-use super::consts::TlPacketType;
+
-use super::evt::EvtBox;
+use crate::cmd::{CmdPacket, CmdSerial};
-use super::unsafe_linked_list::LinkedListNode;
+use crate::consts::TlPacketType;
-use super::{
+use crate::evt::EvtBox;
-    channels, BleTable, BLE_CMD_BUFFER, CS_BUFFER, EVT_QUEUE, HCI_ACL_DATA_BUFFER, TL_BLE_TABLE, TL_CHANNEL,
+use crate::tables::BleTable;
-    TL_REF_TABLE,
+use crate::unsafe_linked_list::LinkedListNode;
+use crate::{
+    channels, BLE_CMD_BUFFER, CS_BUFFER, EVT_CHANNEL, EVT_QUEUE, HCI_ACL_DATA_BUFFER, TL_BLE_TABLE, TL_REF_TABLE,
 };
-use crate::tl_mbox::cmd::CmdPacket;
-use crate::tl_mbox::ipcc::Ipcc;
 
 pub struct Ble;
 
 impl Ble {
-    pub fn enable() {
+    pub(super) fn enable() {
         unsafe {
             LinkedListNode::init_head(EVT_QUEUE.as_mut_ptr());
 
-            TL_BLE_TABLE.as_mut_ptr().write_volatile(BleTable {
+            TL_BLE_TABLE = MaybeUninit::new(BleTable {
                 pcmd_buffer: BLE_CMD_BUFFER.as_mut_ptr().cast(),
-                pcs_buffer: CS_BUFFER.as_mut_ptr().cast(),
+                pcs_buffer: CS_BUFFER.as_ptr().cast(),
                 pevt_queue: EVT_QUEUE.as_ptr().cast(),
                 phci_acl_data_buffer: HCI_ACL_DATA_BUFFER.as_mut_ptr().cast(),
             });
@@ -29,7 +29,7 @@ impl Ble {
         Ipcc::c1_set_rx_channel(channels::cpu2::IPCC_BLE_EVENT_CHANNEL, true);
     }
 
-    pub fn evt_handler() {
+    pub(super) fn evt_handler() {
         unsafe {
             let mut node_ptr = core::ptr::null_mut();
             let node_ptr_ptr: *mut _ = &mut node_ptr;
@@ -40,25 +40,43 @@ impl Ble {
                 let event = node_ptr.cast();
                 let event = EvtBox::new(event);
 
-                block_on(TL_CHANNEL.send(event));
+                EVT_CHANNEL.try_send(event).unwrap();
             }
         }
 
         Ipcc::c1_clear_flag_channel(channels::cpu2::IPCC_BLE_EVENT_CHANNEL);
     }
 
-    pub fn send_cmd(buf: &[u8]) {
+    pub(super) fn acl_data_handler() {
+        Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_HCI_ACL_DATA_CHANNEL, false);
+
+        // TODO: ACL data ack to the user
+    }
+
+    pub fn ble_send_cmd(buf: &[u8]) {
+        debug!("writing ble cmd");
+
         unsafe {
             let pcmd_buffer: *mut CmdPacket = (*TL_REF_TABLE.assume_init().ble_table).pcmd_buffer;
-            let pcmd_serial: *mut CmdSerial = &mut (*pcmd_buffer).cmd_serial;
+            let pcmd_serial: *mut CmdSerial = &mut (*pcmd_buffer).cmdserial;
             let pcmd_serial_buf: *mut u8 = pcmd_serial.cast();
 
             core::ptr::copy(buf.as_ptr(), pcmd_serial_buf, buf.len());
 
             let cmd_packet = &mut *(*TL_REF_TABLE.assume_init().ble_table).pcmd_buffer;
-            cmd_packet.cmd_serial.ty = TlPacketType::BleCmd as u8;
+            cmd_packet.cmdserial.ty = TlPacketType::BleCmd as u8;
         }
 
         Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_BLE_CMD_CHANNEL);
     }
+
+    #[allow(dead_code)] // Not used currently but reserved
+    pub(super) fn ble_send_acl_data() {
+        let cmd_packet = unsafe { &mut *(*TL_REF_TABLE.assume_init().ble_table).phci_acl_data_buffer };
+
+        cmd_packet.acl_data_serial.ty = TlPacketType::AclData as u8;
+
+        Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_HCI_ACL_DATA_CHANNEL);
+        Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_HCI_ACL_DATA_CHANNEL, true);
+    }
 }

embassy-stm32-wpan/src/channels.rs

@@ -50,36 +50,30 @@
 //!
 
 pub mod cpu1 {
-    use crate::tl_mbox::ipcc::IpccChannel;
+    use embassy_stm32::ipcc::IpccChannel;
 
-    // Not used currently but reserved
     pub const IPCC_BLE_CMD_CHANNEL: IpccChannel = IpccChannel::Channel1;
-    // Not used currently but reserved
     pub const IPCC_SYSTEM_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel2;
-    #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_THREAD_OT_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel3;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_ZIGBEE_CMD_APPLI_CHANNEL: IpccChannel = IpccChannel::Channel3;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_MAC_802_15_4_CMD_RSP_CHANNEL: IpccChannel = IpccChannel::Channel3;
-    // Not used currently but reserved
-    pub const IPCC_MM_RELEASE_BUFFER_CHANNEL: IpccChannel = IpccChannel::Channel4;
     #[allow(dead_code)] // Not used currently but reserved
+    pub const IPCC_MM_RELEASE_BUFFER_CHANNEL: IpccChannel = IpccChannel::Channel4;
     pub const IPCC_THREAD_CLI_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_LLDTESTS_CLI_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_BLE_LLD_CMD_CHANNEL: IpccChannel = IpccChannel::Channel5;
-    #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_HCI_ACL_DATA_CHANNEL: IpccChannel = IpccChannel::Channel6;
 }
 
 pub mod cpu2 {
-    use crate::tl_mbox::ipcc::IpccChannel;
+    use embassy_stm32::ipcc::IpccChannel;
 
     pub const IPCC_BLE_EVENT_CHANNEL: IpccChannel = IpccChannel::Channel1;
     pub const IPCC_SYSTEM_EVENT_CHANNEL: IpccChannel = IpccChannel::Channel2;
-    #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_THREAD_NOTIFICATION_ACK_CHANNEL: IpccChannel = IpccChannel::Channel3;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_ZIGBEE_APPLI_NOTIF_ACK_CHANNEL: IpccChannel = IpccChannel::Channel3;
@@ -88,10 +82,8 @@ pub mod cpu2 {
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_LDDTESTS_M0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
     #[allow(dead_code)] // Not used currently but reserved
-    pub const IPCC_BLE_LLD_M0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
+    pub const IPCC_BLE_LLDÇM0_CMD_CHANNEL: IpccChannel = IpccChannel::Channel3;
-    #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_TRACES_CHANNEL: IpccChannel = IpccChannel::Channel4;
-    #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_THREAD_CLI_NOTIFICATION_ACK_CHANNEL: IpccChannel = IpccChannel::Channel5;
     #[allow(dead_code)] // Not used currently but reserved
     pub const IPCC_LLDTESTS_CLI_RSP_CHANNEL: IpccChannel = IpccChannel::Channel5;

embassy-stm32-wpan/src/cmd.rs

@@ -0,0 +1,77 @@
+use crate::evt::{EvtPacket, EvtSerial};
+use crate::{PacketHeader, TL_EVT_HEADER_SIZE};
+
+#[derive(Copy, Clone)]
+#[repr(C, packed)]
+pub struct Cmd {
+    pub cmd_code: u16,
+    pub payload_len: u8,
+    pub payload: [u8; 255],
+}
+
+impl Default for Cmd {
+    fn default() -> Self {
+        Self {
+            cmd_code: 0,
+            payload_len: 0,
+            payload: [0u8; 255],
+        }
+    }
+}
+
+#[derive(Copy, Clone, Default)]
+#[repr(C, packed)]
+pub struct CmdSerial {
+    pub ty: u8,
+    pub cmd: Cmd,
+}
+
+#[derive(Copy, Clone, Default)]
+#[repr(C, packed)]
+pub struct CmdPacket {
+    pub header: PacketHeader,
+    pub cmdserial: CmdSerial,
+}
+
+impl CmdPacket {
+    /// Writes an underlying CmdPacket into the provided buffer.
+    /// Returns a number of bytes that were written.
+    /// Returns an error if event kind is unknown or if provided buffer size is not enough.
+    #[allow(clippy::result_unit_err)]
+    pub fn write(&self, buf: &mut [u8]) -> Result<usize, ()> {
+        unsafe {
+            let cmd_ptr: *const CmdPacket = self;
+            let self_as_evt_ptr: *const EvtPacket = cmd_ptr.cast();
+            let evt_serial: *const EvtSerial = &(*self_as_evt_ptr).evt_serial;
+
+            let acl_data: *const AclDataPacket = cmd_ptr.cast();
+            let acl_serial: *const AclDataSerial = &(*acl_data).acl_data_serial;
+            let acl_serial_buf: *const u8 = acl_serial.cast();
+
+            let len = (*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE;
+            if len > buf.len() {
+                return Err(());
+            }
+
+            core::ptr::copy(acl_serial_buf, buf.as_mut_ptr(), len);
+
+            Ok(len)
+        }
+    }
+}
+
+#[derive(Copy, Clone)]
+#[repr(C, packed)]
+pub struct AclDataSerial {
+    pub ty: u8,
+    pub handle: u16,
+    pub length: u16,
+    pub acl_data: [u8; 1],
+}
+
+#[derive(Copy, Clone)]
+#[repr(C, packed)]
+pub struct AclDataPacket {
+    pub header: PacketHeader,
+    pub acl_data_serial: AclDataSerial,
+}

embassy-stm32-wpan/src/consts.rs

@@ -1,4 +1,6 @@
-#[derive(PartialEq)]
+use core::convert::TryFrom;
+
+#[derive(Debug)]
 #[repr(C)]
 pub enum TlPacketType {
     BleCmd = 0x01,

embassy-stm32-wpan/src/evt.rs

@@ -3,9 +3,11 @@ use core::mem::MaybeUninit;
 use super::cmd::{AclDataPacket, AclDataSerial};
 use super::consts::TlPacketType;
 use super::{PacketHeader, TL_EVT_HEADER_SIZE};
-use crate::tl_mbox::mm::MemoryManager;
+use crate::mm;
 
-/// the payload of [`Evt`] for a command status event
+/**
+ * The payload of `Evt` for a command status event
+ */
 #[derive(Copy, Clone)]
 #[repr(C, packed)]
 pub struct CsEvt {
@@ -14,16 +16,39 @@ pub struct CsEvt {
     pub cmd_code: u16,
 }
 
-/// the payload of [`Evt`] for a command complete event
+/**
-#[derive(Clone, Copy, Default)]
+ * The payload of `Evt` for a command complete event
+ */
+#[derive(Copy, Clone, Default)]
 #[repr(C, packed)]
 pub struct CcEvt {
     pub num_cmd: u8,
-    pub cmd_code: u8,
+    pub cmd_code: u16,
     pub payload: [u8; 1],
 }
 
-#[derive(Clone, Copy, Default)]
+impl CcEvt {
+    pub fn write(&self, buf: &mut [u8]) {
+        unsafe {
+            let len = core::mem::size_of::<CcEvt>();
+            assert!(buf.len() >= len);
+
+            let self_ptr: *const CcEvt = self;
+            let self_buf_ptr: *const u8 = self_ptr.cast();
+
+            core::ptr::copy(self_buf_ptr, buf.as_mut_ptr(), len);
+        }
+    }
+}
+
+#[derive(Copy, Clone, Default)]
+#[repr(C, packed)]
+pub struct AsynchEvt {
+    sub_evt_code: u16,
+    payload: [u8; 1],
+}
+
+#[derive(Copy, Clone, Default)]
 #[repr(C, packed)]
 pub struct Evt {
     pub evt_code: u8,
@@ -31,7 +56,7 @@ pub struct Evt {
     pub payload: [u8; 1],
 }
 
-#[derive(Clone, Copy, Default)]
+#[derive(Copy, Clone, Default)]
 #[repr(C, packed)]
 pub struct EvtSerial {
     pub kind: u8,
@@ -46,14 +71,26 @@ pub struct EvtSerial {
 /// Be careful that the asynchronous events reported by the CPU2 on the system channel do
 /// include the header and shall use `EvtPacket` format. Only the command response format on the
 /// system channel is different.
-#[derive(Clone, Copy, Default)]
+#[derive(Copy, Clone, Default)]
 #[repr(C, packed)]
 pub struct EvtPacket {
     pub header: PacketHeader,
     pub evt_serial: EvtSerial,
 }
 
-/// Smart pointer to the [`EvtPacket`] that will dispose of it automatically on drop
+impl EvtPacket {
+    pub fn kind(&self) -> u8 {
+        self.evt_serial.kind
+    }
+
+    pub fn evt(&self) -> &Evt {
+        &self.evt_serial.evt
+    }
+}
+
+/// smart pointer to the [`EvtPacket`] that will dispose of [`EvtPacket`] buffer automatically
+/// on [`Drop`]
+#[derive(Debug)]
 pub struct EvtBox {
     ptr: *mut EvtPacket,
 }
@@ -64,7 +101,7 @@ impl EvtBox {
         Self { ptr }
     }
 
-    /// Copies the event data from inner pointer and returns and event structure
+    /// copies event data from inner pointer and returns an event structure
     pub fn evt(&self) -> EvtPacket {
         let mut evt = MaybeUninit::uninit();
         unsafe {
@@ -73,28 +110,11 @@ impl EvtBox {
         }
     }
 
-    /// Returns the size of a buffer required to hold this event
+    /// writes an underlying [`EvtPacket`] into the provided buffer.
-    pub fn size(&self) -> Result<usize, ()> {
+    /// Returns the number of bytes that were written.
-        unsafe {
+    /// Returns an error if event kind is unknown or if provided buffer size is not enough.
-            let evt_kind = TlPacketType::try_from((*self.ptr).evt_serial.kind)?;
+    #[allow(clippy::result_unit_err)]
-
+    pub fn write(&self, buf: &mut [u8]) -> Result<usize, ()> {
-            if evt_kind == TlPacketType::AclData {
-                let acl_data: *const AclDataPacket = self.ptr.cast();
-                let acl_serial: *const AclDataSerial = &(*acl_data).acl_data_serial;
-
-                Ok((*acl_serial).length as usize + 5)
-            } else {
-                let evt_data: *const EvtPacket = self.ptr.cast();
-                let evt_serial: *const EvtSerial = &(*evt_data).evt_serial;
-
-                Ok((*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE)
-            }
-        }
-    }
-
-    /// writes an underlying [`EvtPacket`] into the provided buffer. Returns the number of bytes that were
-    /// written. Returns an error if event kind is unkown or if provided buffer size is not enough
-    pub fn copy_into_slice(&self, buf: &mut [u8]) -> Result<usize, ()> {
         unsafe {
             let evt_kind = TlPacketType::try_from((*self.ptr).evt_serial.kind)?;
 
@@ -127,10 +147,30 @@ impl EvtBox {
             }
         }
     }
+
+    /// returns the size of a buffer required to hold this event
+    #[allow(clippy::result_unit_err)]
+    pub fn size(&self) -> Result<usize, ()> {
+        unsafe {
+            let evt_kind = TlPacketType::try_from((*self.ptr).evt_serial.kind)?;
+
+            let evt_data: *const EvtPacket = self.ptr.cast();
+            let evt_serial: *const EvtSerial = &(*evt_data).evt_serial;
+
+            let acl_data: *const AclDataPacket = self.ptr.cast();
+            let acl_serial: *const AclDataSerial = &(*acl_data).acl_data_serial;
+
+            if let TlPacketType::AclData = evt_kind {
+                Ok((*acl_serial).length as usize + 5)
+            } else {
+                Ok((*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE)
+            }
+        }
+    }
 }
 
 impl Drop for EvtBox {
     fn drop(&mut self) {
-        MemoryManager::evt_drop(self.ptr);
+        mm::MemoryManager::evt_drop(self.ptr);
     }
 }

embassy-stm32-wpan/src/fmt.rs

@@ -0,0 +1,225 @@
+#![macro_use]
+#![allow(unused_macros)]
+
+#[cfg(all(feature = "defmt", feature = "log"))]
+compile_error!("You may not enable both `defmt` and `log` features.");
+
+macro_rules! assert {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert!($($x)*);
+        }
+    };
+}
+
+macro_rules! assert_eq {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert_eq!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert_eq!($($x)*);
+        }
+    };
+}
+
+macro_rules! assert_ne {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert_ne!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert_ne!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert_eq {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert_eq!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert_eq!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert_ne {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert_ne!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert_ne!($($x)*);
+        }
+    };
+}
+
+macro_rules! todo {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::todo!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::todo!($($x)*);
+        }
+    };
+}
+
+macro_rules! unreachable {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
+    };
+}
+
+macro_rules! panic {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::panic!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::panic!($($x)*);
+        }
+    };
+}
+
+macro_rules! trace {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::trace!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::trace!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! debug {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::debug!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! info {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::info!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::info!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! warn {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::warn!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::warn!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! error {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::error!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::error!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+#[cfg(feature = "defmt")]
+macro_rules! unwrap {
+    ($($x:tt)*) => {
+        ::defmt::unwrap!($($x)*)
+    };
+}
+
+#[cfg(not(feature = "defmt"))]
+macro_rules! unwrap {
+    ($arg:expr) => {
+        match $crate::fmt::Try::into_result($arg) {
+            ::core::result::Result::Ok(t) => t,
+            ::core::result::Result::Err(e) => {
+                ::core::panic!("unwrap of `{}` failed: {:?}", ::core::stringify!($arg), e);
+            }
+        }
+    };
+    ($arg:expr, $($msg:expr),+ $(,)? ) => {
+        match $crate::fmt::Try::into_result($arg) {
+            ::core::result::Result::Ok(t) => t,
+            ::core::result::Result::Err(e) => {
+                ::core::panic!("unwrap of `{}` failed: {}: {:?}", ::core::stringify!($arg), ::core::format_args!($($msg,)*), e);
+            }
+        }
+    }
+}
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct NoneError;
+
+pub trait Try {
+    type Ok;
+    type Error;
+    fn into_result(self) -> Result<Self::Ok, Self::Error>;
+}
+
+impl<T> Try for Option<T> {
+    type Ok = T;
+    type Error = NoneError;
+
+    #[inline]
+    fn into_result(self) -> Result<T, NoneError> {
+        self.ok_or(NoneError)
+    }
+}
+
+impl<T, E> Try for Result<T, E> {
+    type Ok = T;
+    type Error = E;
+
+    #[inline]
+    fn into_result(self) -> Self {
+        self
+    }
+}

embassy-stm32-wpan/src/lib.rs

@@ -0,0 +1,266 @@
+#![no_std]
+
+// This must go FIRST so that all the other modules see its macros.
+pub mod fmt;
+
+use core::mem::MaybeUninit;
+
+use cmd::CmdPacket;
+use embassy_futures::block_on;
+use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
+use embassy_stm32::interrupt;
+use embassy_stm32::interrupt::typelevel::Interrupt;
+use embassy_stm32::ipcc::{Config, Ipcc};
+use embassy_stm32::peripherals::IPCC;
+use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
+use embassy_sync::channel::Channel;
+use embassy_sync::signal::Signal;
+use evt::{CcEvt, EvtBox};
+use tables::{
+    BleTable, DeviceInfoTable, Mac802_15_4Table, MemManagerTable, RefTable, SysTable, ThreadTable, TracesTable,
+    WirelessFwInfoTable,
+};
+use unsafe_linked_list::LinkedListNode;
+
+pub mod ble;
+pub mod channels;
+pub mod cmd;
+pub mod consts;
+pub mod evt;
+pub mod mm;
+pub mod rc;
+pub mod shci;
+pub mod sys;
+pub mod tables;
+pub mod unsafe_linked_list;
+
+/// Interrupt handler.
+pub struct ReceiveInterruptHandler {}
+
+impl interrupt::typelevel::Handler<interrupt::typelevel::IPCC_C1_RX> for ReceiveInterruptHandler {
+    unsafe fn on_interrupt() {
+        if Ipcc::is_rx_pending(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL) {
+            debug!("RX SYS evt");
+            sys::Sys::evt_handler();
+        } else if Ipcc::is_rx_pending(channels::cpu2::IPCC_BLE_EVENT_CHANNEL) {
+            debug!("RX BLE evt");
+            ble::Ble::evt_handler();
+        }
+
+        STATE.signal(());
+    }
+}
+
+pub struct TransmitInterruptHandler {}
+
+impl interrupt::typelevel::Handler<interrupt::typelevel::IPCC_C1_TX> for TransmitInterruptHandler {
+    unsafe fn on_interrupt() {
+        if Ipcc::is_tx_pending(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL) {
+            debug!("TX SYS cmd rsp");
+            let cc = sys::Sys::cmd_evt_handler();
+
+            LAST_CC_EVT.signal(cc);
+        } else if Ipcc::is_tx_pending(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL) {
+            debug!("TX MM release");
+            mm::MemoryManager::free_buf_handler();
+        } else if Ipcc::is_tx_pending(channels::cpu1::IPCC_HCI_ACL_DATA_CHANNEL) {
+            debug!("TX HCI acl");
+            ble::Ble::acl_data_handler();
+        }
+
+        STATE.signal(());
+    }
+}
+
+#[link_section = "TL_REF_TABLE"]
+pub static mut TL_REF_TABLE: MaybeUninit<RefTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_DEVICE_INFO_TABLE: MaybeUninit<DeviceInfoTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_BLE_TABLE: MaybeUninit<BleTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_THREAD_TABLE: MaybeUninit<ThreadTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_SYS_TABLE: MaybeUninit<SysTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_MEM_MANAGER_TABLE: MaybeUninit<MemManagerTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_TRACES_TABLE: MaybeUninit<TracesTable> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM1"]
+static mut TL_MAC_802_15_4_TABLE: MaybeUninit<Mac802_15_4Table> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut FREE_BUF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
+
+// Not in shared RAM
+static mut LOCAL_FREE_BUF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
+
+#[allow(dead_code)] // Not used currently but reserved
+#[link_section = "MB_MEM2"]
+static mut TRACES_EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
+
+type PacketHeader = LinkedListNode;
+
+const TL_PACKET_HEADER_SIZE: usize = core::mem::size_of::<PacketHeader>();
+const TL_EVT_HEADER_SIZE: usize = 3;
+const TL_CS_EVT_SIZE: usize = core::mem::size_of::<evt::CsEvt>();
+
+#[link_section = "MB_MEM2"]
+static mut CS_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE]> =
+    MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut SYSTEM_EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+pub static mut SYS_CMD_BUF: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
+
+/**
+ * Queue length of BLE Event
+ * This parameter defines the number of asynchronous events that can be stored in the HCI layer before
+ * being reported to the application. When a command is sent to the BLE core coprocessor, the HCI layer
+ * is waiting for the event with the Num_HCI_Command_Packets set to 1. The receive queue shall be large
+ * enough to store all asynchronous events received in between.
+ * When CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE is set to 27, this allow to store three 255 bytes long asynchronous events
+ * between the HCI command and its event.
+ * This parameter depends on the value given to CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE. When the queue size is to small,
+ * the system may hang if the queue is full with asynchronous events and the HCI layer is still waiting
+ * for a CC/CS event, In that case, the notification TL_BLE_HCI_ToNot() is called to indicate
+ * to the application a HCI command did not receive its command event within 30s (Default HCI Timeout).
+ */
+const CFG_TLBLE_EVT_QUEUE_LENGTH: usize = 5;
+const CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE: usize = 255;
+const TL_BLE_EVENT_FRAME_SIZE: usize = TL_EVT_HEADER_SIZE + CFG_TLBLE_MOST_EVENT_PAYLOAD_SIZE;
+
+const fn divc(x: usize, y: usize) -> usize {
+    ((x) + (y) - 1) / (y)
+}
+
+const POOL_SIZE: usize = CFG_TLBLE_EVT_QUEUE_LENGTH * 4 * divc(TL_PACKET_HEADER_SIZE + TL_BLE_EVENT_FRAME_SIZE, 4);
+
+#[link_section = "MB_MEM2"]
+static mut EVT_POOL: MaybeUninit<[u8; POOL_SIZE]> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut SYS_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
+    MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut BLE_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
+    MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+static mut BLE_CMD_BUFFER: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
+
+#[link_section = "MB_MEM2"]
+//                                 fuck these "magic" numbers from ST ---v---v
+static mut HCI_ACL_DATA_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + 5 + 251]> = MaybeUninit::uninit();
+
+/// current event that is produced during IPCC IRQ handler execution
+/// on SYS channel
+static EVT_CHANNEL: Channel<CriticalSectionRawMutex, EvtBox, 32> = Channel::new();
+
+/// last received Command Complete event
+static LAST_CC_EVT: Signal<CriticalSectionRawMutex, CcEvt> = Signal::new();
+
+static STATE: Signal<CriticalSectionRawMutex, ()> = Signal::new();
+
+pub struct TlMbox<'d> {
+    _ipcc: PeripheralRef<'d, IPCC>,
+}
+
+impl<'d> TlMbox<'d> {
+    pub fn init(
+        ipcc: impl Peripheral<P = IPCC> + 'd,
+        _irqs: impl interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_RX, ReceiveInterruptHandler>
+            + interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_TX, TransmitInterruptHandler>,
+        config: Config,
+    ) -> Self {
+        into_ref!(ipcc);
+
+        unsafe {
+            TL_REF_TABLE = MaybeUninit::new(RefTable {
+                device_info_table: TL_DEVICE_INFO_TABLE.as_mut_ptr(),
+                ble_table: TL_BLE_TABLE.as_ptr(),
+                thread_table: TL_THREAD_TABLE.as_ptr(),
+                sys_table: TL_SYS_TABLE.as_ptr(),
+                mem_manager_table: TL_MEM_MANAGER_TABLE.as_ptr(),
+                traces_table: TL_TRACES_TABLE.as_ptr(),
+                mac_802_15_4_table: TL_MAC_802_15_4_TABLE.as_ptr(),
+            });
+
+            TL_SYS_TABLE = MaybeUninit::zeroed();
+            TL_DEVICE_INFO_TABLE = MaybeUninit::zeroed();
+            TL_BLE_TABLE = MaybeUninit::zeroed();
+            TL_THREAD_TABLE = MaybeUninit::zeroed();
+            TL_MEM_MANAGER_TABLE = MaybeUninit::zeroed();
+            TL_TRACES_TABLE = MaybeUninit::zeroed();
+            TL_MAC_802_15_4_TABLE = MaybeUninit::zeroed();
+
+            EVT_POOL = MaybeUninit::zeroed();
+            SYS_SPARE_EVT_BUF = MaybeUninit::zeroed();
+            BLE_SPARE_EVT_BUF = MaybeUninit::zeroed();
+
+            CS_BUFFER = MaybeUninit::zeroed();
+            BLE_CMD_BUFFER = MaybeUninit::zeroed();
+            HCI_ACL_DATA_BUFFER = MaybeUninit::zeroed();
+        }
+
+        Ipcc::enable(config);
+
+        sys::Sys::enable();
+        ble::Ble::enable();
+        mm::MemoryManager::enable();
+
+        // enable interrupts
+        interrupt::typelevel::IPCC_C1_RX::unpend();
+        interrupt::typelevel::IPCC_C1_TX::unpend();
+
+        unsafe { interrupt::typelevel::IPCC_C1_RX::enable() };
+        unsafe { interrupt::typelevel::IPCC_C1_TX::enable() };
+
+        STATE.reset();
+
+        Self { _ipcc: ipcc }
+    }
+
+    /// Returns CPU2 wireless firmware information (if present).
+    pub fn wireless_fw_info(&self) -> Option<WirelessFwInfoTable> {
+        let info = unsafe { &(*(*TL_REF_TABLE.as_ptr()).device_info_table).wireless_fw_info_table };
+
+        // Zero version indicates that CPU2 wasn't active and didn't fill the information table
+        if info.version != 0 {
+            Some(*info)
+        } else {
+            None
+        }
+    }
+
+    /// picks single [`EvtBox`] from internal event queue.
+    ///
+    /// Internal event queu is populated in IPCC_RX_IRQ handler
+    pub fn dequeue_event(&mut self) -> Option<EvtBox> {
+        EVT_CHANNEL.try_recv().ok()
+    }
+
+    /// retrieves last Command Complete event and removes it from mailbox
+    pub fn pop_last_cc_evt(&mut self) -> Option<CcEvt> {
+        if LAST_CC_EVT.signaled() {
+            let cc = block_on(LAST_CC_EVT.wait());
+            LAST_CC_EVT.reset();
+            Some(cc)
+        } else {
+            None
+        }
+    }
+}

embassy-stm32-wpan/src/mm.rs

@@ -0,0 +1,75 @@
+//! Memory manager routines
+
+use core::mem::MaybeUninit;
+
+use embassy_stm32::ipcc::Ipcc;
+
+use crate::evt::EvtPacket;
+use crate::tables::MemManagerTable;
+use crate::unsafe_linked_list::LinkedListNode;
+use crate::{
+    channels, BLE_SPARE_EVT_BUF, EVT_POOL, FREE_BUF_QUEUE, LOCAL_FREE_BUF_QUEUE, POOL_SIZE, SYS_SPARE_EVT_BUF,
+    TL_MEM_MANAGER_TABLE, TL_REF_TABLE,
+};
+
+pub(super) struct MemoryManager;
+
+impl MemoryManager {
+    pub fn enable() {
+        unsafe {
+            LinkedListNode::init_head(FREE_BUF_QUEUE.as_mut_ptr());
+            LinkedListNode::init_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr());
+
+            TL_MEM_MANAGER_TABLE = MaybeUninit::new(MemManagerTable {
+                spare_ble_buffer: BLE_SPARE_EVT_BUF.as_ptr().cast(),
+                spare_sys_buffer: SYS_SPARE_EVT_BUF.as_ptr().cast(),
+                blepool: EVT_POOL.as_ptr().cast(),
+                blepoolsize: POOL_SIZE as u32,
+                pevt_free_buffer_queue: FREE_BUF_QUEUE.as_mut_ptr(),
+                traces_evt_pool: core::ptr::null(),
+                tracespoolsize: 0,
+            });
+        }
+    }
+
+    pub fn evt_drop(evt: *mut EvtPacket) {
+        unsafe {
+            let list_node = evt.cast();
+
+            LinkedListNode::insert_tail(LOCAL_FREE_BUF_QUEUE.as_mut_ptr(), list_node);
+
+            let channel_is_busy = Ipcc::c1_is_active_flag(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
+
+            // postpone event buffer freeing to IPCC interrupt handler
+            if channel_is_busy {
+                Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL, true);
+            } else {
+                Self::send_free_buf();
+                Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
+            }
+        }
+    }
+
+    /// gives free event buffers back to CPU2 from local buffer queue
+    pub fn send_free_buf() {
+        unsafe {
+            let mut node_ptr = core::ptr::null_mut();
+            let node_ptr_ptr: *mut _ = &mut node_ptr;
+
+            while !LinkedListNode::is_empty(LOCAL_FREE_BUF_QUEUE.as_mut_ptr()) {
+                LinkedListNode::remove_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr(), node_ptr_ptr);
+                LinkedListNode::insert_tail(
+                    (*(*TL_REF_TABLE.as_ptr()).mem_manager_table).pevt_free_buffer_queue,
+                    node_ptr,
+                );
+            }
+        }
+    }
+
+    /// free buffer channel interrupt handler
+    pub fn free_buf_handler() {
+        Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL, false);
+        Self::send_free_buf();
+        Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
+    }
+}

embassy-stm32-wpan/src/rc.rs

@@ -0,0 +1,50 @@
+use crate::ble::Ble;
+use crate::consts::TlPacketType;
+use crate::{shci, TlMbox, STATE};
+
+pub struct RadioCoprocessor<'d> {
+    mbox: TlMbox<'d>,
+    rx_buf: [u8; 500],
+}
+
+impl<'d> RadioCoprocessor<'d> {
+    pub fn new(mbox: TlMbox<'d>) -> Self {
+        Self {
+            mbox,
+            rx_buf: [0u8; 500],
+        }
+    }
+
+    pub fn write(&self, buf: &[u8]) {
+        let cmd_code = buf[0];
+        let cmd = TlPacketType::try_from(cmd_code).unwrap();
+
+        match &cmd {
+            TlPacketType::BleCmd => Ble::ble_send_cmd(buf),
+            _ => todo!(),
+        }
+    }
+
+    pub async fn read(&mut self) -> &[u8] {
+        loop {
+            STATE.wait().await;
+
+            while let Some(evt) = self.mbox.dequeue_event() {
+                let event = evt.evt();
+
+                evt.write(&mut self.rx_buf).unwrap();
+
+                if event.kind() == 18 {
+                    shci::shci_ble_init(Default::default());
+                    self.rx_buf[0] = 0x04;
+                }
+            }
+
+            if self.mbox.pop_last_cc_evt().is_some() {
+                continue;
+            }
+
+            return &self.rx_buf;
+        }
+    }
+}

embassy-stm32-wpan/src/shci.rs

@@ -1,16 +1,10 @@
-//! HCI commands for system channel
-
 use super::cmd::CmdPacket;
 use super::consts::TlPacketType;
-use super::{channels, TL_CS_EVT_SIZE, TL_EVT_HEADER_SIZE, TL_PACKET_HEADER_SIZE, TL_SYS_TABLE};
+use super::{sys, TL_CS_EVT_SIZE, TL_EVT_HEADER_SIZE, TL_PACKET_HEADER_SIZE, TL_SYS_TABLE};
-use crate::tl_mbox::ipcc::Ipcc;
 
 const SCHI_OPCODE_BLE_INIT: u16 = 0xfc66;
-pub const TL_BLE_EVT_CS_PACKET_SIZE: usize = TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE;
-#[allow(dead_code)]
-const TL_BLE_EVT_CS_BUFFER_SIZE: usize = TL_PACKET_HEADER_SIZE + TL_BLE_EVT_CS_PACKET_SIZE;
 
-#[derive(Clone, Copy)]
+#[derive(Debug, Clone, Copy)]
 #[repr(C, packed)]
 pub struct ShciBleInitCmdParam {
     /// NOT USED CURRENTLY
@@ -63,39 +57,44 @@ impl Default for ShciBleInitCmdParam {
     }
 }
 
-#[derive(Clone, Copy, Default)]
+#[derive(Debug, Clone, Copy, Default)]
 #[repr(C, packed)]
 pub struct ShciHeader {
     metadata: [u32; 3],
 }
 
-#[derive(Clone, Copy)]
+#[derive(Debug, Clone, Copy)]
 #[repr(C, packed)]
 pub struct ShciBleInitCmdPacket {
     header: ShciHeader,
     param: ShciBleInitCmdParam,
 }
 
+pub const TL_BLE_EVT_CS_PACKET_SIZE: usize = TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE;
+#[allow(dead_code)] // Not used currently but reserved
+const TL_BLE_EVT_CS_BUFFER_SIZE: usize = TL_PACKET_HEADER_SIZE + TL_BLE_EVT_CS_PACKET_SIZE;
+
 pub fn shci_ble_init(param: ShciBleInitCmdParam) {
+    debug!("sending SHCI");
+
     let mut packet = ShciBleInitCmdPacket {
         header: ShciHeader::default(),
         param,
     };
 
-    let packet_ptr: *mut ShciBleInitCmdPacket = &mut packet;
+    let packet_ptr: *mut _ = &mut packet;
 
     unsafe {
         let cmd_ptr: *mut CmdPacket = packet_ptr.cast();
 
-        (*cmd_ptr).cmd_serial.cmd.cmd_code = SCHI_OPCODE_BLE_INIT;
+        (*cmd_ptr).cmdserial.cmd.cmd_code = SCHI_OPCODE_BLE_INIT;
-        (*cmd_ptr).cmd_serial.cmd.payload_len = core::mem::size_of::<ShciBleInitCmdParam>() as u8;
+        (*cmd_ptr).cmdserial.cmd.payload_len = core::mem::size_of::<ShciBleInitCmdParam>() as u8;
 
-        let cmd_buf = &mut *(*TL_SYS_TABLE.as_mut_ptr()).pcmd_buffer;
+        let p_cmd_buffer = &mut *(*TL_SYS_TABLE.as_mut_ptr()).pcmd_buffer;
-        core::ptr::write(cmd_buf, *cmd_ptr);
+        core::ptr::write(p_cmd_buffer, *cmd_ptr);
 
-        cmd_buf.cmd_serial.ty = TlPacketType::SysCmd as u8;
+        p_cmd_buffer.cmdserial.ty = TlPacketType::SysCmd as u8;
 
-        Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL);
+        sys::Sys::send_cmd();
-        Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL, true);
     }
 }

embassy-stm32-wpan/src/sys.rs

@@ -1,11 +1,12 @@
-use embassy_futures::block_on;
+use core::mem::MaybeUninit;
 
-use super::cmd::{CmdPacket, CmdSerial};
+use embassy_stm32::ipcc::Ipcc;
-use super::consts::TlPacketType;
+
-use super::evt::{CcEvt, EvtBox, EvtSerial};
+use crate::cmd::{CmdPacket, CmdSerial};
-use super::unsafe_linked_list::LinkedListNode;
+use crate::evt::{CcEvt, EvtBox, EvtSerial};
-use super::{channels, SysTable, SYSTEM_EVT_QUEUE, SYS_CMD_BUF, TL_CHANNEL, TL_REF_TABLE, TL_SYS_TABLE};
+use crate::tables::SysTable;
-use crate::tl_mbox::ipcc::Ipcc;
+use crate::unsafe_linked_list::LinkedListNode;
+use crate::{channels, EVT_CHANNEL, SYSTEM_EVT_QUEUE, SYS_CMD_BUF, TL_SYS_TABLE};
 
 pub struct Sys;
 
@@ -14,34 +15,15 @@ impl Sys {
         unsafe {
             LinkedListNode::init_head(SYSTEM_EVT_QUEUE.as_mut_ptr());
 
-            TL_SYS_TABLE.as_mut_ptr().write_volatile(SysTable {
+            TL_SYS_TABLE = MaybeUninit::new(SysTable {
                 pcmd_buffer: SYS_CMD_BUF.as_mut_ptr(),
                 sys_queue: SYSTEM_EVT_QUEUE.as_ptr(),
-            });
+            })
         }
 
         Ipcc::c1_set_rx_channel(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL, true);
     }
 
-    pub fn evt_handler() {
-        unsafe {
-            let mut node_ptr = core::ptr::null_mut();
-            let node_ptr_ptr: *mut _ = &mut node_ptr;
-
-            while !LinkedListNode::is_empty(SYSTEM_EVT_QUEUE.as_mut_ptr()) {
-                LinkedListNode::remove_head(SYSTEM_EVT_QUEUE.as_mut_ptr(), node_ptr_ptr);
-
-                let event = node_ptr.cast();
-                let event = EvtBox::new(event);
-
-                // TODO: not really happy about this
-                block_on(TL_CHANNEL.send(event));
-            }
-        }
-
-        Ipcc::c1_clear_flag_channel(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL);
-    }
-
     pub fn cmd_evt_handler() -> CcEvt {
         Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL, false);
 
@@ -55,29 +37,34 @@ impl Sys {
         // 4. CcEvt type is the actual SHCI response
         // 5. profit
         unsafe {
-            let cmd: *const CmdPacket = (*TL_SYS_TABLE.as_ptr()).pcmd_buffer;
+            let pcmd: *const CmdPacket = (*TL_SYS_TABLE.as_ptr()).pcmd_buffer;
-            let cmd_serial: *const CmdSerial = &(*cmd).cmd_serial;
+            let cmd_serial: *const CmdSerial = &(*pcmd).cmdserial;
             let evt_serial: *const EvtSerial = cmd_serial.cast();
-            let cc = (*evt_serial).evt.payload.as_ptr().cast();
+            let cc: *const CcEvt = (*evt_serial).evt.payload.as_ptr().cast();
             *cc
         }
     }
 
-    #[allow(dead_code)]
+    pub fn evt_handler() {
-    pub fn send_cmd(buf: &[u8]) {
         unsafe {
-            // TODO: check this
+            let mut node_ptr = core::ptr::null_mut();
-            let cmd_buffer = &mut *(*TL_REF_TABLE.assume_init().sys_table).pcmd_buffer;
+            let node_ptr_ptr: *mut _ = &mut node_ptr;
-            let cmd_serial: *mut CmdSerial = &mut cmd_buffer.cmd_serial;
-            let cmd_serial_buf = cmd_serial.cast();
 
-            core::ptr::copy(buf.as_ptr(), cmd_serial_buf, buf.len());
+            while !LinkedListNode::is_empty(SYSTEM_EVT_QUEUE.as_mut_ptr()) {
+                LinkedListNode::remove_head(SYSTEM_EVT_QUEUE.as_mut_ptr(), node_ptr_ptr);
 
-            let cmd_packet = &mut *(*TL_REF_TABLE.assume_init().sys_table).pcmd_buffer;
+                let event = node_ptr.cast();
-            cmd_packet.cmd_serial.ty = TlPacketType::SysCmd as u8;
+                let event = EvtBox::new(event);
 
+                EVT_CHANNEL.try_send(event).unwrap();
+            }
+        }
+
+        Ipcc::c1_clear_flag_channel(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL);
+    }
+
+    pub fn send_cmd() {
         Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL);
         Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL, true);
     }
-    }
 }

embassy-stm32-wpan/src/tables.rs

@@ -0,0 +1,175 @@
+use bit_field::BitField;
+
+use crate::cmd::{AclDataPacket, CmdPacket};
+use crate::unsafe_linked_list::LinkedListNode;
+
+#[derive(Debug, Copy, Clone)]
+#[repr(C, packed)]
+pub struct SafeBootInfoTable {
+    version: u32,
+}
+
+#[derive(Debug, Copy, Clone)]
+#[repr(C, packed)]
+pub struct RssInfoTable {
+    pub version: u32,
+    pub memory_size: u32,
+    pub rss_info: u32,
+}
+
+/**
+ * Version
+ * [0:3]   = Build - 0: Untracked - 15:Released - x: Tracked version
+ * [4:7]   = branch - 0: Mass Market - x: ...
+ * [8:15]  = Subversion
+ * [16:23] = Version minor
+ * [24:31] = Version major
+ *
+ * Memory Size
+ * [0:7]   = Flash ( Number of 4k sector)
+ * [8:15]  = Reserved ( Shall be set to 0 - may be used as flash extension )
+ * [16:23] = SRAM2b ( Number of 1k sector)
+ * [24:31] = SRAM2a ( Number of 1k sector)
+ */
+#[derive(Debug, Copy, Clone)]
+#[repr(C, packed)]
+pub struct WirelessFwInfoTable {
+    pub version: u32,
+    pub memory_size: u32,
+    pub thread_info: u32,
+    pub ble_info: u32,
+}
+
+impl WirelessFwInfoTable {
+    pub fn version_major(&self) -> u8 {
+        let version = self.version;
+        (version.get_bits(24..31) & 0xff) as u8
+    }
+
+    pub fn version_minor(&self) -> u8 {
+        let version = self.version;
+        (version.clone().get_bits(16..23) & 0xff) as u8
+    }
+
+    pub fn subversion(&self) -> u8 {
+        let version = self.version;
+        (version.clone().get_bits(8..15) & 0xff) as u8
+    }
+
+    /// Size of FLASH, expressed in number of 4K sectors.
+    pub fn flash_size(&self) -> u8 {
+        let memory_size = self.memory_size;
+        (memory_size.clone().get_bits(0..7) & 0xff) as u8
+    }
+
+    /// Size of SRAM2a, expressed in number of 1K sectors.
+    pub fn sram2a_size(&self) -> u8 {
+        let memory_size = self.memory_size;
+        (memory_size.clone().get_bits(24..31) & 0xff) as u8
+    }
+
+    /// Size of SRAM2b, expressed in number of 1K sectors.
+    pub fn sram2b_size(&self) -> u8 {
+        let memory_size = self.memory_size;
+        (memory_size.clone().get_bits(16..23) & 0xff) as u8
+    }
+}
+
+#[derive(Debug, Clone)]
+#[repr(C, align(4))]
+pub struct DeviceInfoTable {
+    pub safe_boot_info_table: SafeBootInfoTable,
+    pub rss_info_table: RssInfoTable,
+    pub wireless_fw_info_table: WirelessFwInfoTable,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct BleTable {
+    pub pcmd_buffer: *mut CmdPacket,
+    pub pcs_buffer: *const u8,
+    pub pevt_queue: *const u8,
+    pub phci_acl_data_buffer: *mut AclDataPacket,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct ThreadTable {
+    pub nostack_buffer: *const u8,
+    pub clicmdrsp_buffer: *const u8,
+    pub otcmdrsp_buffer: *const u8,
+}
+
+// TODO: use later
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct LldTestsTable {
+    pub clicmdrsp_buffer: *const u8,
+    pub m0cmd_buffer: *const u8,
+}
+
+// TODO: use later
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct BleLldTable {
+    pub cmdrsp_buffer: *const u8,
+    pub m0cmd_buffer: *const u8,
+}
+
+// TODO: use later
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct ZigbeeTable {
+    pub notif_m0_to_m4_buffer: *const u8,
+    pub appli_cmd_m4_to_m0_bufer: *const u8,
+    pub request_m0_to_m4_buffer: *const u8,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct SysTable {
+    pub pcmd_buffer: *mut CmdPacket,
+    pub sys_queue: *const LinkedListNode,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct MemManagerTable {
+    pub spare_ble_buffer: *const u8,
+    pub spare_sys_buffer: *const u8,
+
+    pub blepool: *const u8,
+    pub blepoolsize: u32,
+
+    pub pevt_free_buffer_queue: *mut LinkedListNode,
+
+    pub traces_evt_pool: *const u8,
+    pub tracespoolsize: u32,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct TracesTable {
+    pub traces_queue: *const u8,
+}
+
+#[derive(Debug)]
+#[repr(C, align(4))]
+pub struct Mac802_15_4Table {
+    pub p_cmdrsp_buffer: *const u8,
+    pub p_notack_buffer: *const u8,
+    pub evt_queue: *const u8,
+}
+
+/// Reference table. Contains pointers to all other tables.
+#[derive(Debug, Copy, Clone)]
+#[repr(C)]
+pub struct RefTable {
+    pub device_info_table: *const DeviceInfoTable,
+    pub ble_table: *const BleTable,
+    pub thread_table: *const ThreadTable,
+    pub sys_table: *const SysTable,
+    pub mem_manager_table: *const MemManagerTable,
+    pub traces_table: *const TracesTable,
+    pub mac_802_15_4_table: *const Mac802_15_4Table,
+}

embassy-stm32-wpan/src/unsafe_linked_list.rs

@@ -57,6 +57,7 @@ impl LinkedListNode {
         });
     }
 
+    /// Remove `node` from the linked list
     pub unsafe fn remove_node(mut node: *mut LinkedListNode) {
         interrupt::free(|_| {
             (*(*node).prev).next = (*node).next;
@@ -64,6 +65,7 @@ impl LinkedListNode {
         });
     }
 
+    /// Remove `list_head` into `node`
     pub unsafe fn remove_head(mut list_head: *mut LinkedListNode, mut node: *mut *mut LinkedListNode) {
         interrupt::free(|_| {
             *node = (*list_head).next;
@@ -71,10 +73,11 @@ impl LinkedListNode {
         });
     }
 
-    pub unsafe fn remove_tail(mut list_head: *mut LinkedListNode, mut node: *mut *mut LinkedListNode) {
+    /// Remove `list_tail` into `node`
+    pub unsafe fn remove_tail(mut list_tail: *mut LinkedListNode, mut node: *mut *mut LinkedListNode) {
         interrupt::free(|_| {
-            *node = (*list_head).prev;
+            *node = (*list_tail).prev;
-            Self::remove_node((*list_head).prev);
+            Self::remove_node((*list_tail).prev);
         });
     }
 

embassy-stm32/src/ipcc.rs

@@ -167,8 +167,68 @@ impl sealed::Instance for crate::peripherals::IPCC {
 }
 
 unsafe fn _configure_pwr() {
+    let pwr = crate::pac::PWR;
     let rcc = crate::pac::RCC;
 
+    rcc.cfgr().modify(|w| w.set_stopwuck(true));
+
+    pwr.cr1().modify(|w| w.set_dbp(true));
+    pwr.cr1().modify(|w| w.set_dbp(true));
+
+    // configure LSE
+    rcc.bdcr().modify(|w| w.set_lseon(true));
+
+    // select system clock source = PLL
+    // set PLL coefficients
+    // m: 2,
+    // n: 12,
+    // r: 3,
+    // q: 4,
+    // p: 3,
+    let src_bits = 0b11;
+    let pllp = (3 - 1) & 0b11111;
+    let pllq = (4 - 1) & 0b111;
+    let pllr = (3 - 1) & 0b111;
+    let plln = 12 & 0b1111111;
+    let pllm = (2 - 1) & 0b111;
+    rcc.pllcfgr().modify(|w| {
+        w.set_pllsrc(src_bits);
+        w.set_pllm(pllm);
+        w.set_plln(plln);
+        w.set_pllr(pllr);
+        w.set_pllp(pllp);
+        w.set_pllpen(true);
+        w.set_pllq(pllq);
+        w.set_pllqen(true);
+    });
+    // enable PLL
+    rcc.cr().modify(|w| w.set_pllon(true));
+    rcc.cr().write(|w| w.set_hsion(false));
+    // while !rcc.cr().read().pllrdy() {}
+
+    // configure SYSCLK mux to use PLL clocl
+    rcc.cfgr().modify(|w| w.set_sw(0b11));
+
+    // configure CPU1 & CPU2 dividers
+    rcc.cfgr().modify(|w| w.set_hpre(0)); // not divided
+    rcc.extcfgr().modify(|w| {
+        w.set_c2hpre(0b1000); // div2
+        w.set_shdhpre(0); // not divided
+    });
+
+    // apply APB1 / APB2 values
+    rcc.cfgr().modify(|w| {
+        w.set_ppre1(0b000); // not divided
+        w.set_ppre2(0b000); // not divided
+    });
+
+    // TODO: required
     // set RF wake-up clock = LSE
     rcc.csr().modify(|w| w.set_rfwkpsel(0b01));
+
+    // set LPTIM1 & LPTIM2 clock source
+    rcc.ccipr().modify(|w| {
+        w.set_lptim1sel(0b00); // PCLK
+        w.set_lptim2sel(0b00); // PCLK
+    });
 }

embassy-stm32/src/lib.rs

@@ -41,6 +41,8 @@ pub mod crc;
 pub mod flash;
 #[cfg(all(spi_v1, rcc_f4))]
 pub mod i2s;
+#[cfg(stm32wb)]
+pub mod ipcc;
 pub mod pwm;
 #[cfg(quadspi)]
 pub mod qspi;
@@ -52,8 +54,6 @@ pub mod rtc;
 pub mod sdmmc;
 #[cfg(spi)]
 pub mod spi;
-#[cfg(stm32wb)]
-pub mod tl_mbox;
 #[cfg(usart)]
 pub mod usart;
 #[cfg(usb)]

embassy-stm32/src/tl_mbox/cmd.rs

@@ -1,49 +0,0 @@
-use super::PacketHeader;
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct Cmd {
-    pub cmd_code: u16,
-    pub payload_len: u8,
-    pub payload: [u8; 255],
-}
-
-impl Default for Cmd {
-    fn default() -> Self {
-        Self {
-            cmd_code: 0,
-            payload_len: 0,
-            payload: [0u8; 255],
-        }
-    }
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone, Default)]
-pub struct CmdSerial {
-    pub ty: u8,
-    pub cmd: Cmd,
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone, Default)]
-pub struct CmdPacket {
-    pub header: PacketHeader,
-    pub cmd_serial: CmdSerial,
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct AclDataSerial {
-    pub ty: u8,
-    pub handle: u16,
-    pub length: u16,
-    pub acl_data: [u8; 1],
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct AclDataPacket {
-    pub header: PacketHeader,
-    pub acl_data_serial: AclDataSerial,
-}

embassy-stm32/src/tl_mbox/mm.rs

@@ -1,67 +0,0 @@
-use super::evt::EvtPacket;
-use super::unsafe_linked_list::LinkedListNode;
-use super::{
-    channels, MemManagerTable, BLE_SPARE_EVT_BUF, EVT_POOL, FREE_BUFF_QUEUE, LOCAL_FREE_BUF_QUEUE, POOL_SIZE,
-    SYS_SPARE_EVT_BUF, TL_MEM_MANAGER_TABLE, TL_REF_TABLE,
-};
-use crate::tl_mbox::ipcc::Ipcc;
-
-pub struct MemoryManager;
-
-impl MemoryManager {
-    pub fn enable() {
-        unsafe {
-            LinkedListNode::init_head(FREE_BUFF_QUEUE.as_mut_ptr());
-            LinkedListNode::init_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr());
-
-            TL_MEM_MANAGER_TABLE.as_mut_ptr().write_volatile(MemManagerTable {
-                spare_ble_buffer: BLE_SPARE_EVT_BUF.as_ptr().cast(),
-                spare_sys_buffer: SYS_SPARE_EVT_BUF.as_ptr().cast(),
-                ble_pool: EVT_POOL.as_ptr().cast(),
-                ble_pool_size: POOL_SIZE as u32,
-                pevt_free_buffer_queue: FREE_BUFF_QUEUE.as_mut_ptr(),
-                traces_evt_pool: core::ptr::null(),
-                traces_pool_size: 0,
-            });
-        }
-    }
-
-    pub fn evt_handler() {
-        Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL, false);
-        Self::send_free_buf();
-        Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
-    }
-
-    pub fn evt_drop(evt: *mut EvtPacket) {
-        unsafe {
-            let list_node = evt.cast();
-
-            LinkedListNode::remove_tail(LOCAL_FREE_BUF_QUEUE.as_mut_ptr(), list_node);
-        }
-
-        let channel_is_busy = Ipcc::c1_is_active_flag(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
-
-        // postpone event buffer freeing to IPCC interrupt handler
-        if channel_is_busy {
-            Ipcc::c1_set_tx_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL, true);
-        } else {
-            Self::send_free_buf();
-            Ipcc::c1_set_flag_channel(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL);
-        }
-    }
-
-    fn send_free_buf() {
-        unsafe {
-            let mut node_ptr = core::ptr::null_mut();
-            let node_ptr_ptr: *mut _ = &mut node_ptr;
-
-            while !LinkedListNode::is_empty(LOCAL_FREE_BUF_QUEUE.as_mut_ptr()) {
-                LinkedListNode::remove_head(LOCAL_FREE_BUF_QUEUE.as_mut_ptr(), node_ptr_ptr);
-                LinkedListNode::insert_tail(
-                    (*(*TL_REF_TABLE.as_ptr()).mem_manager_table).pevt_free_buffer_queue,
-                    node_ptr,
-                );
-            }
-        }
-    }
-}

embassy-stm32/src/tl_mbox/mod.rs

@@ -1,417 +0,0 @@
-use core::mem::MaybeUninit;
-
-use atomic_polyfill::{compiler_fence, Ordering};
-use bit_field::BitField;
-use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
-use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
-use embassy_sync::channel::Channel;
-
-use self::ble::Ble;
-use self::cmd::{AclDataPacket, CmdPacket};
-use self::evt::{CsEvt, EvtBox};
-use self::mm::MemoryManager;
-use self::shci::{shci_ble_init, ShciBleInitCmdParam};
-use self::sys::Sys;
-use self::unsafe_linked_list::LinkedListNode;
-use crate::interrupt;
-use crate::interrupt::InterruptExt;
-use crate::peripherals::IPCC;
-pub use crate::tl_mbox::ipcc::Config;
-use crate::tl_mbox::ipcc::Ipcc;
-
-mod ble;
-mod channels;
-mod cmd;
-mod consts;
-mod evt;
-mod ipcc;
-mod mm;
-mod shci;
-mod sys;
-mod unsafe_linked_list;
-
-pub type PacketHeader = LinkedListNode;
-
-const TL_PACKET_HEADER_SIZE: usize = core::mem::size_of::<PacketHeader>();
-const TL_EVT_HEADER_SIZE: usize = 3;
-const TL_CS_EVT_SIZE: usize = core::mem::size_of::<CsEvt>();
-
-const CFG_TL_BLE_EVT_QUEUE_LENGTH: usize = 5;
-const CFG_TL_BLE_MOST_EVENT_PAYLOAD_SIZE: usize = 255;
-const TL_BLE_EVENT_FRAME_SIZE: usize = TL_EVT_HEADER_SIZE + CFG_TL_BLE_MOST_EVENT_PAYLOAD_SIZE;
-
-const POOL_SIZE: usize = CFG_TL_BLE_EVT_QUEUE_LENGTH * 4 * divc(TL_PACKET_HEADER_SIZE + TL_BLE_EVENT_FRAME_SIZE, 4);
-
-const fn divc(x: usize, y: usize) -> usize {
-    (x + y - 1) / y
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct SafeBootInfoTable {
-    version: u32,
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct FusInfoTable {
-    version: u32,
-    memory_size: u32,
-    fus_info: u32,
-}
-
-/// Interrupt handler.
-pub struct ReceiveInterruptHandler {}
-
-impl interrupt::typelevel::Handler<interrupt::typelevel::IPCC_C1_RX> for ReceiveInterruptHandler {
-    unsafe fn on_interrupt() {
-        // info!("ipcc rx interrupt");
-
-        if Ipcc::is_rx_pending(channels::cpu2::IPCC_SYSTEM_EVENT_CHANNEL) {
-            sys::Sys::evt_handler();
-        } else if Ipcc::is_rx_pending(channels::cpu2::IPCC_BLE_EVENT_CHANNEL) {
-            ble::Ble::evt_handler();
-        } else {
-            todo!()
-        }
-    }
-}
-
-pub struct TransmitInterruptHandler {}
-
-impl interrupt::typelevel::Handler<interrupt::typelevel::IPCC_C1_TX> for TransmitInterruptHandler {
-    unsafe fn on_interrupt() {
-        // info!("ipcc tx interrupt");
-
-        if Ipcc::is_tx_pending(channels::cpu1::IPCC_SYSTEM_CMD_RSP_CHANNEL) {
-            // TODO: handle this case
-            let _ = sys::Sys::cmd_evt_handler();
-        } else if Ipcc::is_tx_pending(channels::cpu1::IPCC_MM_RELEASE_BUFFER_CHANNEL) {
-            mm::MemoryManager::evt_handler();
-        } else {
-            todo!()
-        }
-    }
-}
-
-/// # Version
-/// - 0 -> 3   = Build - 0: Untracked - 15:Released - x: Tracked version
-/// - 4 -> 7   = branch - 0: Mass Market - x: ...
-/// - 8 -> 15  = Subversion
-/// - 16 -> 23 = Version minor
-/// - 24 -> 31 = Version major
-/// # Memory Size
-/// - 0 -> 7   = Flash ( Number of 4k sector)
-/// - 8 -> 15  = Reserved ( Shall be set to 0 - may be used as flash extension )
-/// - 16 -> 23 = SRAM2b ( Number of 1k sector)
-/// - 24 -> 31 = SRAM2a ( Number of 1k sector)
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct WirelessFwInfoTable {
-    version: u32,
-    memory_size: u32,
-    info_stack: u32,
-    reserved: u32,
-}
-
-impl WirelessFwInfoTable {
-    pub fn version_major(&self) -> u8 {
-        let version = self.version;
-        (version.get_bits(24..31) & 0xff) as u8
-    }
-
-    pub fn version_minor(&self) -> u8 {
-        let version = self.version;
-        (version.get_bits(16..23) & 0xff) as u8
-    }
-
-    pub fn subversion(&self) -> u8 {
-        let version = self.version;
-        (version.get_bits(8..15) & 0xff) as u8
-    }
-
-    /// size of FLASH, expressed in number of 4K sectors
-    pub fn flash_size(&self) -> u8 {
-        let memory_size = self.memory_size;
-        (memory_size.get_bits(0..7) & 0xff) as u8
-    }
-
-    /// size for SRAM2a, expressed in number of 1K sectors
-    pub fn sram2a_size(&self) -> u8 {
-        let memory_size = self.memory_size;
-        (memory_size.get_bits(24..31) & 0xff) as u8
-    }
-
-    /// size of SRAM2b, expressed in number of 1K sectors
-    pub fn sram2b_size(&self) -> u8 {
-        let memory_size = self.memory_size;
-        (memory_size.get_bits(16..23) & 0xff) as u8
-    }
-}
-
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct DeviceInfoTable {
-    pub safe_boot_info_table: SafeBootInfoTable,
-    pub fus_info_table: FusInfoTable,
-    pub wireless_fw_info_table: WirelessFwInfoTable,
-}
-
-#[repr(C, packed)]
-struct BleTable {
-    pcmd_buffer: *mut CmdPacket,
-    pcs_buffer: *const u8,
-    pevt_queue: *const u8,
-    phci_acl_data_buffer: *mut AclDataPacket,
-}
-
-#[repr(C, packed)]
-struct ThreadTable {
-    no_stack_buffer: *const u8,
-    cli_cmd_rsp_buffer: *const u8,
-    ot_cmd_rsp_buffer: *const u8,
-}
-
-#[repr(C, packed)]
-struct SysTable {
-    pcmd_buffer: *mut CmdPacket,
-    sys_queue: *const LinkedListNode,
-}
-
-#[allow(dead_code)] // Not used currently but reserved
-#[repr(C, packed)]
-struct LldTestTable {
-    cli_cmd_rsp_buffer: *const u8,
-    m0_cmd_buffer: *const u8,
-}
-
-#[allow(dead_code)] // Not used currently but reserved
-#[repr(C, packed)]
-struct BleLldTable {
-    cmd_rsp_buffer: *const u8,
-    m0_cmd_buffer: *const u8,
-}
-
-#[allow(dead_code)] // Not used currently but reserved
-#[repr(C, packed)]
-struct ZigbeeTable {
-    notif_m0_to_m4_buffer: *const u8,
-    appli_cmd_m4_to_m0_buffer: *const u8,
-    request_m0_to_m4_buffer: *const u8,
-}
-
-#[repr(C, packed)]
-struct MemManagerTable {
-    spare_ble_buffer: *const u8,
-    spare_sys_buffer: *const u8,
-
-    ble_pool: *const u8,
-    ble_pool_size: u32,
-
-    pevt_free_buffer_queue: *mut LinkedListNode,
-
-    traces_evt_pool: *const u8,
-    traces_pool_size: u32,
-}
-
-#[repr(C, packed)]
-struct TracesTable {
-    traces_queue: *const u8,
-}
-
-#[repr(C, packed)]
-struct Mac802_15_4Table {
-    pcmd_rsp_buffer: *const u8,
-    pnotack_buffer: *const u8,
-    evt_queue: *const u8,
-}
-
-/// reference table. Contains pointers to all other tables
-#[repr(C, packed)]
-#[derive(Copy, Clone)]
-pub struct RefTable {
-    pub device_info_table: *const DeviceInfoTable,
-    ble_table: *const BleTable,
-    thread_table: *const ThreadTable,
-    sys_table: *const SysTable,
-    mem_manager_table: *const MemManagerTable,
-    traces_table: *const TracesTable,
-    mac_802_15_4_table: *const Mac802_15_4Table,
-    zigbee_table: *const ZigbeeTable,
-    lld_tests_table: *const LldTestTable,
-    ble_lld_table: *const BleLldTable,
-}
-
-#[link_section = "TL_REF_TABLE"]
-pub static mut TL_REF_TABLE: MaybeUninit<RefTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_DEVICE_INFO_TABLE: MaybeUninit<DeviceInfoTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_BLE_TABLE: MaybeUninit<BleTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_THREAD_TABLE: MaybeUninit<ThreadTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_LLD_TESTS_TABLE: MaybeUninit<LldTestTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_BLE_LLD_TABLE: MaybeUninit<BleLldTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_SYS_TABLE: MaybeUninit<SysTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_MEM_MANAGER_TABLE: MaybeUninit<MemManagerTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_TRACES_TABLE: MaybeUninit<TracesTable> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_MAC_802_15_4_TABLE: MaybeUninit<Mac802_15_4Table> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM1"]
-static mut TL_ZIGBEE_TABLE: MaybeUninit<ZigbeeTable> = MaybeUninit::uninit();
-
-#[allow(dead_code)] // Not used currently but reserved
-#[link_section = "MB_MEM1"]
-static mut FREE_BUFF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
-
-// not in shared RAM
-static mut LOCAL_FREE_BUF_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut CS_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + TL_CS_EVT_SIZE]> =
-    MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut SYSTEM_EVT_QUEUE: MaybeUninit<LinkedListNode> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut SYS_CMD_BUF: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut EVT_POOL: MaybeUninit<[u8; POOL_SIZE]> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut SYS_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
-    MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut BLE_SPARE_EVT_BUF: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + TL_EVT_HEADER_SIZE + 255]> =
-    MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-static mut BLE_CMD_BUFFER: MaybeUninit<CmdPacket> = MaybeUninit::uninit();
-
-#[link_section = "MB_MEM2"]
-//                                            "magic" numbers from ST ---v---v
-static mut HCI_ACL_DATA_BUFFER: MaybeUninit<[u8; TL_PACKET_HEADER_SIZE + 5 + 251]> = MaybeUninit::uninit();
-
-// TODO: get a better size, this is a placeholder
-pub(crate) static TL_CHANNEL: Channel<CriticalSectionRawMutex, EvtBox, 5> = Channel::new();
-
-pub struct TlMbox<'d> {
-    _ipcc: PeripheralRef<'d, IPCC>,
-}
-
-impl<'d> TlMbox<'d> {
-    /// initializes low-level transport between CPU1 and BLE stack on CPU2
-    pub fn new(
-        ipcc: impl Peripheral<P = IPCC> + 'd,
-        _irqs: impl interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_RX, ReceiveInterruptHandler>
-            + interrupt::typelevel::Binding<interrupt::typelevel::IPCC_C1_TX, TransmitInterruptHandler>,
-        config: Config,
-    ) -> Self {
-        into_ref!(ipcc);
-
-        unsafe {
-            compiler_fence(Ordering::AcqRel);
-
-            TL_REF_TABLE.as_mut_ptr().write_volatile(RefTable {
-                device_info_table: TL_DEVICE_INFO_TABLE.as_ptr(),
-                ble_table: TL_BLE_TABLE.as_ptr(),
-                thread_table: TL_THREAD_TABLE.as_ptr(),
-                sys_table: TL_SYS_TABLE.as_ptr(),
-                mem_manager_table: TL_MEM_MANAGER_TABLE.as_ptr(),
-                traces_table: TL_TRACES_TABLE.as_ptr(),
-                mac_802_15_4_table: TL_MAC_802_15_4_TABLE.as_ptr(),
-                zigbee_table: TL_ZIGBEE_TABLE.as_ptr(),
-                lld_tests_table: TL_LLD_TESTS_TABLE.as_ptr(),
-                ble_lld_table: TL_BLE_LLD_TABLE.as_ptr(),
-            });
-
-            // info!("TL_REF_TABLE addr: {:x}", TL_REF_TABLE.as_ptr() as usize);
-
-            compiler_fence(Ordering::AcqRel);
-
-            TL_SYS_TABLE = MaybeUninit::zeroed();
-            TL_DEVICE_INFO_TABLE = MaybeUninit::zeroed();
-            TL_BLE_TABLE = MaybeUninit::zeroed();
-            TL_THREAD_TABLE = MaybeUninit::zeroed();
-            TL_MEM_MANAGER_TABLE = MaybeUninit::zeroed();
-            TL_TRACES_TABLE = MaybeUninit::zeroed();
-            TL_MAC_802_15_4_TABLE = MaybeUninit::zeroed();
-            TL_ZIGBEE_TABLE = MaybeUninit::zeroed();
-            TL_LLD_TESTS_TABLE = MaybeUninit::zeroed();
-            TL_BLE_LLD_TABLE = MaybeUninit::zeroed();
-
-            EVT_POOL = MaybeUninit::zeroed();
-            SYS_SPARE_EVT_BUF = MaybeUninit::zeroed();
-            BLE_SPARE_EVT_BUF = MaybeUninit::zeroed();
-
-            CS_BUFFER = MaybeUninit::zeroed();
-            BLE_CMD_BUFFER = MaybeUninit::zeroed();
-            HCI_ACL_DATA_BUFFER = MaybeUninit::zeroed();
-
-            compiler_fence(Ordering::AcqRel);
-        }
-
-        Ipcc::enable(config);
-
-        Sys::enable();
-        Ble::enable();
-        MemoryManager::enable();
-
-        // enable interrupts
-        crate::interrupt::IPCC_C1_RX.unpend();
-        crate::interrupt::IPCC_C1_TX.unpend();
-
-        unsafe { crate::interrupt::IPCC_C1_RX.enable() };
-        unsafe { crate::interrupt::IPCC_C1_TX.enable() };
-
-        Self { _ipcc: ipcc }
-    }
-
-    pub fn wireless_fw_info(&self) -> Option<WirelessFwInfoTable> {
-        let info = unsafe { &(*(*TL_REF_TABLE.as_ptr()).device_info_table).wireless_fw_info_table };
-
-        // zero version indicates that CPU2 wasn't active and didn't fill the information table
-        if info.version != 0 {
-            Some(*info)
-        } else {
-            None
-        }
-    }
-
-    pub fn shci_ble_init(&self, param: ShciBleInitCmdParam) {
-        shci_ble_init(param);
-    }
-
-    pub fn send_ble_cmd(&self, buf: &[u8]) {
-        ble::Ble::send_cmd(buf);
-    }
-
-    // pub fn send_sys_cmd(&self, buf: &[u8]) {
-    //     sys::Sys::send_cmd(buf);
-    // }
-
-    pub async fn read(&self) -> EvtBox {
-        TL_CHANNEL.recv().await
-    }
-}

examples/stm32wb/Cargo.toml

@@ -9,6 +9,7 @@ embassy-sync = { version = "0.2.0", path = "../../embassy-sync", features = ["de
 embassy-executor = { version = "0.2.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32wb55rg", "time-driver-any", "memory-x", "exti"]  }
+embassy-stm32-wpan = { version = "0.1.0", path = "../../embassy-stm32-wpan", features = ["defmt", "stm32wb55rg"] }
 
 defmt = "0.3"
 defmt-rtt = "0.4"

examples/stm32wb/src/bin/tl_mbox.rs

@@ -4,14 +4,15 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::tl_mbox::{Config, TlMbox};
+use embassy_stm32::bind_interrupts;
-use embassy_stm32::{bind_interrupts, tl_mbox};
+use embassy_stm32::ipcc::Config;
+use embassy_stm32_wpan::TlMbox;
 use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 bind_interrupts!(struct Irqs{
-    IPCC_C1_RX => tl_mbox::ReceiveInterruptHandler;
+    IPCC_C1_RX => embassy_stm32_wpan::ReceiveInterruptHandler;
-    IPCC_C1_TX => tl_mbox::TransmitInterruptHandler;
+    IPCC_C1_TX => embassy_stm32_wpan::TransmitInterruptHandler;
 });
 
 #[embassy_executor::main]
@@ -44,7 +45,7 @@ async fn main(_spawner: Spawner) {
     info!("Hello World!");
 
     let config = Config::default();
-    let mbox = TlMbox::new(p.IPCC, Irqs, config);
+    let mbox = TlMbox::init(p.IPCC, Irqs, config);
 
     loop {
         let wireless_fw_info = mbox.wireless_fw_info();

examples/stm32wb/src/bin/tl_mbox_tx_rx.rs

@@ -4,13 +4,15 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::tl_mbox::{Config, TlMbox};
+use embassy_stm32::bind_interrupts;
-use embassy_stm32::{bind_interrupts, tl_mbox};
+use embassy_stm32::ipcc::Config;
+use embassy_stm32_wpan::rc::RadioCoprocessor;
+use embassy_stm32_wpan::TlMbox;
 use {defmt_rtt as _, panic_probe as _};
 
 bind_interrupts!(struct Irqs{
-    IPCC_C1_RX => tl_mbox::ReceiveInterruptHandler;
+    IPCC_C1_RX => embassy_stm32_wpan::ReceiveInterruptHandler;
-    IPCC_C1_TX => tl_mbox::TransmitInterruptHandler;
+    IPCC_C1_TX => embassy_stm32_wpan::TransmitInterruptHandler;
 });
 
 #[embassy_executor::main]
@@ -43,55 +45,16 @@ async fn main(_spawner: Spawner) {
     info!("Hello World!");
 
     let config = Config::default();
-    let mbox = TlMbox::new(p.IPCC, Irqs, config);
+    let mbox = TlMbox::init(p.IPCC, Irqs, config);
 
-    info!("waiting for coprocessor to boot");
+    let mut rc = RadioCoprocessor::new(mbox);
-    let event_box = mbox.read().await;
 
-    let mut payload = [0u8; 6];
+    let response = rc.read().await;
-    event_box.copy_into_slice(&mut payload).unwrap();
+    info!("coprocessor ready {}", response);
 
-    let event_packet = event_box.evt();
+    rc.write(&[0x01, 0x03, 0x0c, 0x00, 0x00]);
-    let kind = event_packet.evt_serial.kind;
+    let response = rc.read().await;
-
+    info!("ble reset rsp {}", response);
-    // means recieved SYS event, which indicates in this case that the coprocessor is ready
-    if kind == 0x12 {
-        let code = event_packet.evt_serial.evt.evt_code;
-        let payload_len = event_packet.evt_serial.evt.payload_len;
-
-        info!(
-            "==> kind: {:#04x}, code: {:#04x}, payload_length: {}, payload: {:#04x}",
-            kind,
-            code,
-            payload_len,
-            payload[3..]
-        );
-    }
-
-    // initialize ble stack, does not return a response
-    mbox.shci_ble_init(Default::default());
-
-    info!("resetting BLE");
-    mbox.send_ble_cmd(&[0x01, 0x03, 0x0c, 0x00, 0x00]);
-
-    let event_box = mbox.read().await;
-
-    let mut payload = [0u8; 7];
-    event_box.copy_into_slice(&mut payload).unwrap();
-
-    let event_packet = event_box.evt();
-    let kind = event_packet.evt_serial.kind;
-
-    let code = event_packet.evt_serial.evt.evt_code;
-    let payload_len = event_packet.evt_serial.evt.payload_len;
-
-    info!(
-        "==> kind: {:#04x}, code: {:#04x}, payload_length: {}, payload: {:#04x}",
-        kind,
-        code,
-        payload_len,
-        payload[3..]
-    );
 
     info!("Test OK");
     cortex_m::asm::bkpt();

tests/stm32/Cargo.toml

@@ -12,13 +12,13 @@ stm32g071rb = ["embassy-stm32/stm32g071rb", "not-gpdma"]     # Nucleo
 stm32c031c6 = ["embassy-stm32/stm32c031c6", "not-gpdma"]     # Nucleo
 stm32g491re = ["embassy-stm32/stm32g491re", "not-gpdma"]     # Nucleo
 stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "not-gpdma"] # Nucleo
-stm32wb55rg = ["embassy-stm32/stm32wb55rg", "not-gpdma", "ble"]     # Nucleo
+stm32wb55rg = ["embassy-stm32/stm32wb55rg", "not-gpdma" ]     # Nucleo
 stm32h563zi = ["embassy-stm32/stm32h563zi"]     # Nucleo
 stm32u585ai = ["embassy-stm32/stm32u585ai"]     # IoT board
 
 sdmmc = []
 chrono = ["embassy-stm32/chrono", "dep:chrono"]
-ble = []
+ble = ["dep:embassy-stm32-wpan"]
 not-gpdma = []
 
 [dependencies]
@@ -29,6 +29,7 @@ embassy-executor = { version = "0.2.0", path = "../../embassy-executor", feature
 embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "tick-hz-32_768", "defmt-timestamp-uptime"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "memory-x", "time-driver-any"]  }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
+embassy-stm32-wpan = { version = "0.1.0", path = "../../embassy-stm32-wpan", optional = true, features = ["defmt", "stm32wb55rg"] }
 
 defmt = "0.3.0"
 defmt-rtt = "0.4"

tests/stm32/src/bin/tl_mbox.rs

@@ -8,13 +8,14 @@ mod common;
 
 use common::*;
 use embassy_executor::Spawner;
-use embassy_stm32::tl_mbox::{Config, TlMbox};
+use embassy_stm32::bind_interrupts;
-use embassy_stm32::{bind_interrupts, tl_mbox};
+use embassy_stm32::ipcc::Config;
+use embassy_stm32_wpan::TlMbox;
 use embassy_time::{Duration, Timer};
 
 bind_interrupts!(struct Irqs{
-    IPCC_C1_RX => tl_mbox::ReceiveInterruptHandler;
+    IPCC_C1_RX => embassy_stm32_wpan::ReceiveInterruptHandler;
-    IPCC_C1_TX => tl_mbox::TransmitInterruptHandler;
+    IPCC_C1_TX => embassy_stm32_wpan::TransmitInterruptHandler;
 });
 
 #[embassy_executor::main]
@@ -23,7 +24,7 @@ async fn main(_spawner: Spawner) {
     info!("Hello World!");
 
     let config = Config::default();
-    let mbox = TlMbox::new(p.IPCC, Irqs, config);
+    let mbox = TlMbox::init(p.IPCC, Irqs, config);
 
     loop {
         let wireless_fw_info = mbox.wireless_fw_info();
@@ -49,6 +50,15 @@ async fn main(_spawner: Spawner) {
         Timer::after(Duration::from_millis(50)).await;
     }
 
+    //    let mut rc = RadioCoprocessor::new(mbox);
+    //
+    //    let response = rc.read().await;
+    //    info!("coprocessor ready {}", response);
+    //
+    //    rc.write(&[0x01, 0x03, 0x0c, 0x00, 0x00]);
+    //    let response = rc.read().await;
+    //    info!("ble reset rsp {}", response);
+
     info!("Test OK");
     cortex_m::asm::bkpt();
 }