added tud_suspended() and tud_ready()

4 files changed, 23 insertions, 2 deletions

diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
index 7b8f1bf72..c194aacd8 100644
--- a/src/class/cdc/cdc_device.c
+++ b/src/class/cdc/cdc_device.c
@@ -99,7 +99,7 @@ static void _prep_out_transaction (uint8_t itf)
 bool tud_cdc_n_connected(uint8_t itf)

 {

   // DTR (bit 0) active  is considered as connected

-  return tud_mounted() && TU_BIT_TEST(_cdcd_itf[itf].line_state, 0);

+  return tud_ready() && TU_BIT_TEST(_cdcd_itf[itf].line_state, 0);

 }

 

 uint8_t tud_cdc_n_get_line_state (uint8_t itf)

diff --git a/src/device/usbd.c b/src/device/usbd.c
index fb6249528..7b87d1944 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -182,6 +182,11 @@ bool tud_mounted(void)
   return _usbd_dev.configured;

 }

 

+bool tud_suspended(void)

+{

+  return _usbd_dev.suspended;

+}

+

 bool tud_remote_wakeup(void)

 {

   // only wake up host if this feature is supported and enabled and we are suspended

@@ -627,6 +632,7 @@ void dcd_event_handler(dcd_event_t const * event, bool in_isr)
     case DCD_EVENT_UNPLUGGED:

       _usbd_dev.connected = 0;

       _usbd_dev.configured = 0;

+      _usbd_dev.suspended = 0;

       osal_queue_send(_usbd_q, event, in_isr);

     break;

 

diff --git a/src/device/usbd.h b/src/device/usbd.h
index d9b9cb8a7..13c282e91 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -66,6 +66,15 @@ void tud_task (void);
 // Check if device is connected and configured

 bool tud_mounted(void);

 

+// Check if device is suspended

+bool tud_suspended(void);

+

+// Check if device is ready to transfer

+static inline bool tud_ready(void)

+{

+  return tud_mounted() && !tud_suspended();

+}

+

 // Remote wake up host, only if suspended and enabled by host

 bool tud_remote_wakeup(void);

 

@@ -79,7 +88,8 @@ ATTR_WEAK void tud_mount_cb(void);
 // Invoked when device is unmounted

 ATTR_WEAK void tud_umount_cb(void);

 

-// Invoked when usb bus is suspended, max bus current draw is 2.5 mA

+// Invoked when usb bus is suspended

+// Within 7ms, device must draw an average of current less than 2.5 mA from bus

 ATTR_WEAK void tud_suspend_cb(bool remote_wakeup_en);

 

 // Invoked when usb bus is resumed

diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c
index 452f25292..15a1963b9 100644
--- a/src/portable/nordic/nrf5x/dcd_nrf5x.c
+++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c
@@ -219,6 +219,9 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num)
 void dcd_remote_wakeup(uint8_t rhport)
 {
   (void) rhport;
+
+  NRF_USBD->DPDMVALUE = USBD_DPDMVALUE_STATE_Resume;
+  NRF_USBD->TASKS_DPDMDRIVE = 1;
 }
 
 //--------------------------------------------------------------------+
@@ -389,6 +392,8 @@ void USBD_IRQHandler(void)
     if ( evt_cause & USBD_EVENTCAUSE_SUSPEND_Msk )
     {
       dcd_event_bus_signal(0, DCD_EVENT_SUSPEND, true);
+
+
     }
 
     if ( evt_cause & USBD_EVENTCAUSE_RESUME_Msk  )