From f4e5258ff798335876d0c6e702eb27e5260403e6 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Sat, 11 Jul 2020 23:44:47 +0200
Subject: [PATCH] stm32-sx1280: fix can send now, notify on packet sent

---
 port/stm32-sx1280/controller/controller.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/port/stm32-sx1280/controller/controller.c b/port/stm32-sx1280/controller/controller.c
index aa9e363c4..e103f2c71 100644
--- a/port/stm32-sx1280/controller/controller.c
+++ b/port/stm32-sx1280/controller/controller.c
@@ -216,7 +216,7 @@ static void transport_register_packet_handler(void (*handler)(uint8_t packet_typ
 static int transport_can_send_packet_now(uint8_t packet_type){
     switch (packet_type){
         case HCI_COMMAND_DATA_PACKET:
-            return hci_outgoing_event_ready ? 1 : 0;
+            return hci_outgoing_event_ready ? 0 : 1;
         case HCI_ACL_DATA_PACKET:
             if (controller_ll_acl_reserved == false){
                 controller_ll_acl_reserved = ll_reserve_acl_packet();
@@ -229,13 +229,21 @@ static int transport_can_send_packet_now(uint8_t packet_type){
     return 0;
 }
 
+static void transport_notify_packet_send(void){
+    // notify upper stack that it might be possible to send again
+    uint8_t event[] = { HCI_EVENT_TRANSPORT_PACKET_SENT, 0};
+    transport_packet_handler(HCI_EVENT_PACKET, &event[0], sizeof(event));
+}
+
 static int transport_send_packet(uint8_t packet_type, uint8_t *packet, int size){
     switch (packet_type){
         case HCI_COMMAND_DATA_PACKET:
             controller_handle_hci_command(packet, size);
+            transport_notify_packet_send();
             break;
         case HCI_ACL_DATA_PACKET:
             controller_handle_acl_data(packet, size);
+            transport_notify_packet_send();
             break;
         default:
             send_hardware_error = 0x01; // invalid HCI packet