From a2c4a48dd627828f5899e5ab70412594b60f37c6 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Sat, 22 May 2021 22:03:21 +0700
Subject: [PATCH] add tuh_hid_report_sent_cb()

---
 examples/host/cdc_msc_hid/src/hid_app.c |  2 +-
 src/class/hid/hid_host.c                |  5 +++--
 src/class/hid/hid_host.h                | 10 +++++++++-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/examples/host/cdc_msc_hid/src/hid_app.c b/examples/host/cdc_msc_hid/src/hid_app.c
index 67be8d50f..23ab12404 100644
--- a/examples/host/cdc_msc_hid/src/hid_app.c
+++ b/examples/host/cdc_msc_hid/src/hid_app.c
@@ -75,7 +75,7 @@ void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
   printf("HID device address = %d, instance = %d is unmounted\r\n", dev_addr, instance);
 }
 
-// Invoked when received Report from device via either regular endpoint
+// Invoked when received report from device via interrupt endpoint
 void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
 {
   (void) dev_addr;
diff --git a/src/class/hid/hid_host.c b/src/class/hid/hid_host.c
index 63983ca5f..778a897be 100644
--- a/src/class/hid/hid_host.c
+++ b/src/class/hid/hid_host.c
@@ -171,7 +171,6 @@ static bool set_report_complete(uint8_t dev_addr, tusb_control_request_t const *
   return true;
 }
 
-
 bool tuh_hid_set_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, uint8_t report_type, void* report, uint16_t len)
 {
   hidh_interface_t* hid_itf = get_instance(dev_addr, instance);
@@ -203,6 +202,8 @@ bool tuh_hid_set_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, u
 //  return !hcd_edpt_busy(dev_addr, hid_itf->ep_in);
 //}
 
+//void tuh_hid_send_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, uint8_t const* report, uint16_t len);
+
 //--------------------------------------------------------------------+
 // USBH API
 //--------------------------------------------------------------------+
@@ -229,7 +230,7 @@ bool hidh_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint3
     hidh_get_report(dev_addr, hid_itf);
   }else
   {
-//    if (tuh_hid_set_report_complete_cb) tuh_hid_set_report_complete_cb(dev_addr, instance, xferred_bytes);
+    if (tuh_hid_report_sent_cb) tuh_hid_report_sent_cb(dev_addr, instance, hid_itf->epout_buf, xferred_bytes);
   }
 
   return true;
diff --git a/src/class/hid/hid_host.h b/src/class/hid/hid_host.h
index 3f9979f52..ea693df69 100644
--- a/src/class/hid/hid_host.h
+++ b/src/class/hid/hid_host.h
@@ -90,6 +90,10 @@ uint8_t tuh_hid_parse_report_descriptor(tuh_hid_report_info_t* reports_info_arr,
 // Check if the interface is ready to use
 //bool tuh_n_hid_n_ready(uint8_t dev_addr, uint8_t instance);
 
+// Send report using interrupt endpoint
+// If report_id > 0 (composite), it will be sent as 1st byte, then report contents. Otherwise only report content is sent.
+//void tuh_hid_send_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, uint8_t const* report, uint16_t len);
+
 //--------------------------------------------------------------------+
 // Callbacks (Weak is optional)
 //--------------------------------------------------------------------+
@@ -102,9 +106,13 @@ void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report_
 // Invoked when device with hid interface is un-mounted
 TU_ATTR_WEAK void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance);
 
-// Invoked when received Report from device via either regular endpoint
+// Invoked when received report from device via interrupt endpoint
+// Note: if there is report ID (composite), it is 1st byte of report
 void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len);
 
+// Invoked when sent report to device successfully via interrupt endpoint
+TU_ATTR_WEAK void tuh_hid_report_sent_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len);
+
 // Invoked when Sent Report to device via either control endpoint
 // len = 0 indicate there is error in the transfer e.g stalled response
 TU_ATTR_WEAK void tuh_hid_set_report_complete_cb(uint8_t dev_addr, uint8_t instance, uint8_t report_id, uint8_t report_type, uint16_t len);