4 files changed, 57 insertions, 5 deletions
diff --git a/src/class/hid/hid_host.c b/src/class/hid/hid_host.c
index 42b5e2f4e..e5fc86267 100644
--- a/src/class/hid/hid_host.c
+++ b/src/class/hid/hid_host.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -274,7 +274,49 @@ bool tuh_hid_receive_report(uint8_t dev_addr, uint8_t instance)
 //  return !usbh_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);
+bool tuh_hid_send_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, const void* report, uint16_t len)
+{
+  TU_LOG2("HID Send Report %d\r\n", report_id);
+
+  hidh_interface_t* hid_itf = get_instance(dev_addr, instance);
+
+  if (hid_itf->ep_out == 0)
+  {
+    // This HID does not have an out endpoint (other than control)
+    return false;
+  }
+  else if (len > CFG_TUH_HID_EPOUT_BUFSIZE
+           || (report_id != 0 && len > (CFG_TUH_HID_EPOUT_BUFSIZE - 1)))
+  {
+    // ep_out buffer is not large enough to hold contents
+    return false;
+  }
+
+  // claim endpoint
+  TU_VERIFY( usbh_edpt_claim(dev_addr, hid_itf->ep_out) );
+
+  if (report_id == 0)
+  {
+    // No report ID in transmission
+    memcpy(&hid_itf->epout_buf[0], report, len);
+  }
+  else
+  {
+    hid_itf->epout_buf[0] = report_id;
+    memcpy(&hid_itf->epout_buf[1], report, len);
+    ++len; // 1 more byte for report_id
+  }
+
+  TU_LOG3_MEM(hid_itf->epout_buf, len, 2);
+
+  if ( !usbh_edpt_xfer(dev_addr, hid_itf->ep_out, hid_itf->epout_buf, len) )
+  {
+    usbh_edpt_release(dev_addr, hid_itf->ep_out);
+    return false;
+  }
+
+  return true;
+}
 
 //--------------------------------------------------------------------+
 // USBH API
@@ -349,7 +391,7 @@ bool hidh_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *de
   hidh_device_t* hid_dev = get_dev(dev_addr);
   TU_ASSERT(hid_dev->inst_count < CFG_TUH_HID, 0);
 
-  hidh_interface_t* hid_itf = get_instance(dev_addr, hid_dev->inst_count);  
+  hidh_interface_t* hid_itf = get_instance(dev_addr, hid_dev->inst_count);
 
   //------------- Endpoint Descriptors -------------//
   p_desc = tu_desc_next(p_desc);
diff --git a/src/class/hid/hid_host.h b/src/class/hid/hid_host.h
index ffc601d77..c152e527a 100644
--- a/src/class/hid/hid_host.h
+++ b/src/class/hid/hid_host.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -106,7 +106,7 @@ bool tuh_hid_receive_report(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);
+bool tuh_hid_send_report(uint8_t dev_addr, uint8_t instance, uint8_t report_id, const void* report, uint16_t len);
 
 //--------------------------------------------------------------------+
 // Callbacks (Weak is optional)
diff --git a/src/portable/chipidea/ci_hs/dcd_ci_hs.c b/src/portable/chipidea/ci_hs/dcd_ci_hs.c
index c7cc3e0e8..5bccf81a7 100644
--- a/src/portable/chipidea/ci_hs/dcd_ci_hs.c
+++ b/src/portable/chipidea/ci_hs/dcd_ci_hs.c
@@ -48,6 +48,8 @@
 
 #define CI_HS_REG(_port)      ((ci_hs_regs_t*) _ci_controller[_port].reg_base)
 
+// Clean means to push any cached changes to RAM and invalidate "removes" the
+// entry from the cache.
 #if defined(__CORTEX_M) && __CORTEX_M == 7 && __DCACHE_PRESENT == 1
   #define CleanInvalidateDCache_by_Addr   SCB_CleanInvalidateDCache_by_Addr
 #else
@@ -199,6 +201,8 @@ static void bus_reset(uint8_t rhport)
   _dcd_data.qhd[0][0].qtd_overlay.next = _dcd_data.qhd[0][1].qtd_overlay.next = QTD_NEXT_INVALID;
 
   _dcd_data.qhd[0][0].int_on_setup = 1; // OUT only
+
+  CleanInvalidateDCache_by_Addr((uint32_t*) &_dcd_data, sizeof(dcd_data_t));
 }
 
 void dcd_init(uint8_t rhport)
diff --git a/src/portable/raspberrypi/rp2040/dcd_rp2040.c b/src/portable/raspberrypi/rp2040/dcd_rp2040.c
index 8df7bef2b..4af8c2d71 100644
--- a/src/portable/raspberrypi/rp2040/dcd_rp2040.c
+++ b/src/portable/raspberrypi/rp2040/dcd_rp2040.c
@@ -29,6 +29,7 @@
 #if CFG_TUD_ENABLED && (CFG_TUSB_MCU == OPT_MCU_RP2040) && !CFG_TUD_RPI_PIO_USB
 
 #include "pico.h"
+#include "hardware/sync.h"
 #include "rp2040_usb.h"
 
 #if TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX
@@ -384,6 +385,11 @@ static void __tusb_irq_path_func(dcd_rp2040_irq)(void)
 /* Controller API
  *------------------------------------------------------------------*/
 
+// older SDK
+#ifndef PICO_SHARED_IRQ_HANDLER_HIGHEST_ORDER_PRIORITY
+#define PICO_SHARED_IRQ_HANDLER_HIGHEST_ORDER_PRIORITY 0xff
+#endif
+
 void dcd_init (uint8_t rhport)
 {
   assert(rhport == 0);