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-rw-r--r--src/class/cdc/cdc_device.c20
-rw-r--r--src/class/hid/hid_device.c15
-rw-r--r--src/class/msc/msc_device.c14
-rw-r--r--src/common/tusb_fifo.c100
-rw-r--r--src/device/dcd.h23
-rw-r--r--src/device/usbd.c43
-rw-r--r--src/device/usbd_pvt.h11
7 files changed, 144 insertions, 82 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
index 1583b71fa..0a41147c9 100644
--- a/src/class/cdc/cdc_device.c
+++ b/src/class/cdc/cdc_device.c
@@ -73,23 +73,21 @@ typedef struct
//--------------------------------------------------------------------+
CFG_TUSB_MEM_SECTION static cdcd_interface_t _cdcd_itf[CFG_TUD_CDC];
-// TODO will be replaced by dcd_edpt_busy()
-bool pending_read_from_host;
+//bool pending_read_from_host; TODO remove
static void _prep_out_transaction (uint8_t itf)
{
cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
// skip if previous transfer not complete
- // dcd_edpt_busy() doesn't work, probably transfer is complete but not properly handled by the stack
-// if ( dcd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_out) ) return;
- if (pending_read_from_host) return;
+ if ( usbd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_out) ) return;
+ //if (pending_read_from_host) return;
// Prepare for incoming data but only allow what we can store in the ring buffer.
uint16_t max_read = tu_fifo_remaining(&p_cdc->rx_ff);
if ( max_read >= CFG_TUD_CDC_EPSIZE )
{
- dcd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_out, p_cdc->epout_buf, CFG_TUD_CDC_EPSIZE);
- pending_read_from_host = true;
+ usbd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_out, p_cdc->epout_buf, CFG_TUD_CDC_EPSIZE);
+// pending_read_from_host = true;
}
}
@@ -183,13 +181,13 @@ uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize)
bool tud_cdc_n_write_flush (uint8_t itf)
{
cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
- TU_VERIFY( !dcd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_in) ); // skip if previous transfer not complete
+ TU_VERIFY( !usbd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_in) ); // skip if previous transfer not complete
uint16_t count = tu_fifo_read_n(&_cdcd_itf[itf].tx_ff, p_cdc->epin_buf, CFG_TUD_CDC_EPSIZE);
if ( count )
{
TU_VERIFY( tud_cdc_n_connected(itf) ); // fifo is empty if not connected
- TU_ASSERT( dcd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_in, p_cdc->epin_buf, count) );
+ TU_ASSERT( usbd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_in, p_cdc->epin_buf, count) );
}
return true;
@@ -298,7 +296,7 @@ bool cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t
}
// Prepare for incoming data
- pending_read_from_host = false;
+// pending_read_from_host = false;
_prep_out_transaction(cdc_id);
return true;
@@ -394,7 +392,7 @@ bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_
if (tud_cdc_rx_cb && tu_fifo_count(&p_cdc->rx_ff) ) tud_cdc_rx_cb(itf);
// prepare for OUT transaction
- pending_read_from_host = false;
+// pending_read_from_host = false;
_prep_out_transaction(itf);
}
diff --git a/src/class/hid/hid_device.c b/src/class/hid/hid_device.c
index aea16efc1..d3f59ed62 100644
--- a/src/class/hid/hid_device.c
+++ b/src/class/hid/hid_device.c
@@ -73,28 +73,31 @@ bool tud_hid_ready(void)
{
uint8_t itf = 0;
uint8_t const ep_in = _hidd_itf[itf].ep_in;
- return tud_ready() && (ep_in != 0) && !dcd_edpt_busy(TUD_OPT_RHPORT, ep_in);
+ return tud_ready() && (ep_in != 0) && !usbd_edpt_busy(TUD_OPT_RHPORT, ep_in);
}
bool tud_hid_report(uint8_t report_id, void const* report, uint8_t len)
{
- TU_VERIFY( tud_hid_ready() && (len <= CFG_TUD_HID_BUFSIZE) );
+ TU_VERIFY( tud_hid_ready() );
uint8_t itf = 0;
hidd_interface_t * p_hid = &_hidd_itf[itf];
- // If report id = 0, skip ID field
if (report_id)
{
+ len = tu_min8(len, CFG_TUD_HID_BUFSIZE-1);
+
p_hid->epin_buf[0] = report_id;
memcpy(p_hid->epin_buf+1, report, len);
len++;
}else
{
+ // If report id = 0, skip ID field
+ len = tu_min8(len, CFG_TUD_HID_BUFSIZE);
memcpy(p_hid->epin_buf, report, len);
}
- return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->epin_buf, len);
+ return usbd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->epin_buf, len);
}
bool tud_hid_boot_mode(void)
@@ -180,7 +183,7 @@ bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t
*p_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
// Prepare for output endpoint
- if (p_hid->ep_out) TU_ASSERT(dcd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
+ if (p_hid->ep_out) TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
return true;
}
@@ -303,7 +306,7 @@ bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_
if (ep_addr == p_hid->ep_out)
{
tud_hid_set_report_cb(0, HID_REPORT_TYPE_INVALID, p_hid->epout_buf, xferred_bytes);
- TU_ASSERT(dcd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
+ TU_ASSERT(usbd_edpt_xfer(rhport, p_hid->ep_out, p_hid->epout_buf, sizeof(p_hid->epout_buf)));
}
return true;
diff --git a/src/class/msc/msc_device.c b/src/class/msc/msc_device.c
index 2fd3d44a1..5681e4f07 100644
--- a/src/class/msc/msc_device.c
+++ b/src/class/msc/msc_device.c
@@ -139,7 +139,7 @@ bool mscd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t
(*p_len) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
// Prepare for Command Block Wrapper
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
return true;
}
@@ -394,7 +394,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
if ( (p_cbw->total_bytes > 0 ) && !tu_bit_test(p_cbw->dir, 7) )
{
// queue transfer
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, p_msc->total_len) );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, p_msc->total_len) );
}else
{
int32_t resplen;
@@ -428,7 +428,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
if (p_msc->total_len)
{
TU_ASSERT( p_cbw->total_bytes >= p_msc->total_len ); // cannot return more than host expect
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, p_msc->total_len) );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, p_msc->total_len) );
}else
{
p_msc->stage = MSC_STAGE_STATUS;
@@ -543,7 +543,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
p_msc->stage = MSC_STAGE_CMD;
// Send SCSI Status
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
// Invoke complete callback if defined
if ( SCSI_CMD_READ_10 == p_cbw->command[0])
@@ -560,7 +560,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
}
// Queue for the next CBW
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
}
}
@@ -602,7 +602,7 @@ static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
}
else
{
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, nbytes), );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, nbytes), );
}
}
@@ -627,7 +627,7 @@ static void proc_write10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
int32_t nbytes = (int32_t) tu_min32(sizeof(_mscd_buf), p_cbw->total_bytes-p_msc->xferred_len);
// Write10 callback will be called later when usb transfer complete
- TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, nbytes), );
+ TU_ASSERT( usbd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, nbytes), );
}
#endif
diff --git a/src/common/tusb_fifo.c b/src/common/tusb_fifo.c
index e2ed51cd6..455b1ad34 100644
--- a/src/common/tusb_fifo.c
+++ b/src/common/tusb_fifo.c
@@ -71,6 +71,35 @@ bool tu_fifo_config(tu_fifo_t *f, void* buffer, uint16_t depth, uint16_t item_si
return true;
}
+// retrieve data from fifo
+static void _tu_ff_pull(tu_fifo_t* f, void * buffer)
+{
+ memcpy(buffer,
+ f->buffer + (f->rd_idx * f->item_size),
+ f->item_size);
+
+ f->rd_idx = (f->rd_idx + 1) % f->depth;
+ f->count--;
+}
+
+// send data to fifo
+static void _tu_ff_push(tu_fifo_t* f, void const * data)
+{
+ memcpy( f->buffer + (f->wr_idx * f->item_size),
+ data,
+ f->item_size);
+
+ f->wr_idx = (f->wr_idx + 1) % f->depth;
+
+ if (tu_fifo_full(f))
+ {
+ f->rd_idx = f->wr_idx; // keep the full state (rd == wr && len = size)
+ }
+ else
+ {
+ f->count++;
+ }
+}
/******************************************************************************/
/*!
@@ -82,23 +111,19 @@ bool tu_fifo_config(tu_fifo_t *f, void* buffer, uint16_t depth, uint16_t item_si
@param[in] f
Pointer to the FIFO buffer to manipulate
- @param[in] p_buffer
+ @param[in] buffer
Pointer to the place holder for data read from the buffer
@returns TRUE if the queue is not empty
*/
/******************************************************************************/
-bool tu_fifo_read(tu_fifo_t* f, void * p_buffer)
+bool tu_fifo_read(tu_fifo_t* f, void * buffer)
{
if( tu_fifo_empty(f) ) return false;
tu_fifo_lock(f);
- memcpy(p_buffer,
- f->buffer + (f->rd_idx * f->item_size),
- f->item_size);
- f->rd_idx = (f->rd_idx + 1) % f->depth;
- f->count--;
+ _tu_ff_pull(f, buffer);
tu_fifo_unlock(f);
@@ -113,7 +138,7 @@ bool tu_fifo_read(tu_fifo_t* f, void * p_buffer)
@param[in] f
Pointer to the FIFO buffer to manipulate
- @param[in] p_data
+ @param[in] buffer
The pointer to data location
@param[in] count
Number of element that buffer can afford
@@ -121,27 +146,28 @@ bool tu_fifo_read(tu_fifo_t* f, void * p_buffer)
@returns number of items read from the FIFO
*/
/******************************************************************************/
-uint16_t tu_fifo_read_n (tu_fifo_t* f, void * p_buffer, uint16_t count)
+uint16_t tu_fifo_read_n (tu_fifo_t* f, void * buffer, uint16_t count)
{
if( tu_fifo_empty(f) ) return 0;
+ tu_fifo_lock(f);
+
/* Limit up to fifo's count */
if ( count > f->count ) count = f->count;
- /* Could copy up to 2 portions marked as 'x' if queue is wrapped around
- * case 1: ....RxxxxW.......
- * case 2: xxxxxW....Rxxxxxx
- */
-// uint16_t index2upper = tu_min16(count, f->count-f->rd_idx);
-
- uint8_t* p_buf = (uint8_t*) p_buffer;
+ uint8_t* buf8 = (uint8_t*) buffer;
uint16_t len = 0;
- while( (len < count) && tu_fifo_read(f, p_buf) )
+
+ while (len < count)
{
+ _tu_ff_pull(f, buf8);
+
len++;
- p_buf += f->item_size;
+ buf8 += f->item_size;
}
+ tu_fifo_unlock(f);
+
return len;
}
@@ -182,33 +208,20 @@ bool tu_fifo_peek_at(tu_fifo_t* f, uint16_t pos, void * p_buffer)
@param[in] f
Pointer to the FIFO buffer to manipulate
- @param[in] p_data
+ @param[in] data
The byte to add to the FIFO
@returns TRUE if the data was written to the FIFO (overwrittable
FIFO will always return TRUE)
*/
/******************************************************************************/
-bool tu_fifo_write (tu_fifo_t* f, const void * p_data)
+bool tu_fifo_write (tu_fifo_t* f, const void * data)
{
if ( tu_fifo_full(f) && !f->overwritable ) return false;
tu_fifo_lock(f);
- memcpy( f->buffer + (f->wr_idx * f->item_size),
- p_data,
- f->item_size);
-
- f->wr_idx = (f->wr_idx + 1) % f->depth;
-
- if (tu_fifo_full(f))
- {
- f->rd_idx = f->wr_idx; // keep the full state (rd == wr && len = size)
- }
- else
- {
- f->count++;
- }
+ _tu_ff_push(f, data);
tu_fifo_unlock(f);
@@ -223,26 +236,35 @@ bool tu_fifo_write (tu_fifo_t* f, const void * p_data)
@param[in] f
Pointer to the FIFO buffer to manipulate
- @param[in] p_data
+ @param[in] data
The pointer to data to add to the FIFO
@param[in] count
Number of element
@return Number of written elements
*/
/******************************************************************************/
-uint16_t tu_fifo_write_n (tu_fifo_t* f, const void * p_data, uint16_t count)
+uint16_t tu_fifo_write_n (tu_fifo_t* f, const void * data, uint16_t count)
{
if ( count == 0 ) return 0;
- uint8_t const* p_buf = (uint8_t const*) p_data;
+ tu_fifo_lock(f);
+
+ // Not overwritable limit up to full
+ if (!f->overwritable) count = tu_min16(count, tu_fifo_remaining(f));
+ uint8_t const* buf8 = (uint8_t const*) data;
uint16_t len = 0;
- while( (len < count) && tu_fifo_write(f, p_buf) )
+
+ while (len < count)
{
+ _tu_ff_push(f, buf8);
+
len++;
- p_buf += f->item_size;
+ buf8 += f->item_size;
}
+ tu_fifo_unlock(f);
+
return len;
}
diff --git a/src/device/dcd.h b/src/device/dcd.h
index 35164ac62..bd7088fe4 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -100,25 +100,28 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num);
// Wake up host
void dcd_remote_wakeup(uint8_t rhport);
-/*------------------------------------------------------------------*/
-/* Endpoint API
- * - open : Configure endpoint's registers
- * - xfer : Submit a transfer. When complete dcd_event_xfer_complete
- * must be called to notify the stack
- * - busy : Check if endpoint transferring is complete (TODO remove)
- * - stall : stall endpoint
- * - clear_stall : clear stall, data toggle is also reset to DATA0
- *------------------------------------------------------------------*/
+//--------------------------------------------------------------------+
+// Endpoint API
+//--------------------------------------------------------------------+
+
+// Configure endpoint's registers according to descriptor
bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc);
+
+// Submit a transfer, When complete dcd_event_xfer_complete() is invoked to notify the stack
bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
+
+// Check if endpoint transferring is complete (TODO remove)
bool dcd_edpt_busy (uint8_t rhport, uint8_t ep_addr);
+// Stall endpoint
void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr);
+
+// clear stall, data toggle is also reset to DATA0
void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr);
/*------------------------------------------------------------------*/
/* Event Function
- * Called by DCD to notify USBD
+ * Called by DCD to notify device stack
*------------------------------------------------------------------*/
void dcd_event_handler(dcd_event_t const * event, bool in_isr);
diff --git a/src/device/usbd.c b/src/device/usbd.c
index 56d895388..e22de4728 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -51,8 +51,8 @@ typedef struct {
uint8_t self_powered : 1; // configuration descriptor's attribute
};
-// uint8_t ep_busy_mask[2]; // bit mask for busy endpoint
- uint8_t ep_stall_mask[2]; // bit mask for stalled endpoint
+ uint8_t ep_busy_map[2]; // bit mask for busy endpoint
+ uint8_t ep_stall_map[2]; // bit map for stalled endpoint
uint8_t itf2drv[16]; // map interface number to driver (0xff is invalid)
uint8_t ep2drv[8][2]; // map endpoint to driver ( 0xff is invalid )
@@ -287,6 +287,10 @@ void tud_task (void)
{
// Invoke the class callback associated with the endpoint address
uint8_t const ep_addr = event.xfer_complete.ep_addr;
+ uint8_t const epnum = tu_edpt_number(ep_addr);
+ uint8_t const dir = tu_edpt_dir(ep_addr);
+
+ _usbd_dev.ep_busy_map[dir] = (uint8_t) tu_bit_clear(_usbd_dev.ep_busy_map[dir], epnum);
if ( 0 == tu_edpt_number(ep_addr) )
{
@@ -621,7 +625,7 @@ void dcd_event_handler(dcd_event_t const * event, bool in_isr)
case DCD_EVENT_SUSPEND:
// NOTE: When plugging/unplugging device, the D+/D- state are unstable and can accidentally meet the
- // SUSPEND condition ( Idle for 3ms ). Some MCUs such as samd don't distinguish suspend vs disconnect as well.
+ // SUSPEND condition ( Idle for 3ms ). Some MCUs such as SAMD doesn't distinguish suspend vs disconnect as well.
// We will skip handling SUSPEND/RESUME event if not currently connected
if ( _usbd_dev.connected )
{
@@ -643,7 +647,8 @@ void dcd_event_handler(dcd_event_t const * event, bool in_isr)
break;
case DCD_EVENT_XFER_COMPLETE:
- // skip zero-length control status complete event, should dcd notifies us.
+ // skip zero-length control status complete event, should DCD notify us.
+ // TODO could cause issue with actual zero length data used by class such as DFU
if ( (0 == tu_edpt_number(event->xfer_complete.ep_addr)) && (event->xfer_complete.len == 0) ) break;
osal_queue_send(_usbd_q, event, in_isr);
@@ -733,13 +738,37 @@ void usbd_defer_func(osal_task_func_t func, void* param, bool in_isr)
//--------------------------------------------------------------------+
// USBD Endpoint API
//--------------------------------------------------------------------+
+
+bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes)
+{
+ uint8_t const epnum = tu_edpt_number(ep_addr);
+ uint8_t const dir = tu_edpt_dir(ep_addr);
+
+ TU_VERIFY( dcd_edpt_xfer(rhport, ep_addr, buffer, total_bytes) );
+
+ _usbd_dev.ep_busy_map[dir] = (uint8_t) tu_bit_set(_usbd_dev.ep_busy_map[dir], epnum);
+
+ return true;
+}
+
+bool usbd_edpt_busy(uint8_t rhport, uint8_t ep_addr)
+{
+ (void) rhport;
+
+ uint8_t const epnum = tu_edpt_number(ep_addr);
+ uint8_t const dir = tu_edpt_dir(ep_addr);
+
+ return tu_bit_test(_usbd_dev.ep_busy_map[dir], epnum);
+}
+
+
void usbd_edpt_stall(uint8_t rhport, uint8_t ep_addr)
{
uint8_t const epnum = tu_edpt_number(ep_addr);
uint8_t const dir = tu_edpt_dir(ep_addr);
dcd_edpt_stall(rhport, ep_addr);
- _usbd_dev.ep_stall_mask[dir] = (uint8_t) tu_bit_set(_usbd_dev.ep_stall_mask[dir], epnum);
+ _usbd_dev.ep_stall_map[dir] = (uint8_t) tu_bit_set(_usbd_dev.ep_stall_map[dir], epnum);
}
void usbd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr)
@@ -748,7 +777,7 @@ void usbd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr)
uint8_t const dir = tu_edpt_dir(ep_addr);
dcd_edpt_clear_stall(rhport, ep_addr);
- _usbd_dev.ep_stall_mask[dir] = (uint8_t) tu_bit_clear(_usbd_dev.ep_stall_mask[dir], epnum);
+ _usbd_dev.ep_stall_map[dir] = (uint8_t) tu_bit_clear(_usbd_dev.ep_stall_map[dir], epnum);
}
bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr)
@@ -758,7 +787,7 @@ bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr)
uint8_t const epnum = tu_edpt_number(ep_addr);
uint8_t const dir = tu_edpt_dir(ep_addr);
- return tu_bit_test(_usbd_dev.ep_stall_mask[dir], epnum);
+ return tu_bit_test(_usbd_dev.ep_stall_map[dir], epnum);
}
#endif
diff --git a/src/device/usbd_pvt.h b/src/device/usbd_pvt.h
index f20532627..706857d45 100644
--- a/src/device/usbd_pvt.h
+++ b/src/device/usbd_pvt.h
@@ -33,10 +33,11 @@
extern "C" {
#endif
+bool usbd_init (void);
+
//--------------------------------------------------------------------+
-// INTERNAL API for stack management
+// USBD Endpoint API
//--------------------------------------------------------------------+
-bool usbd_init (void);
// Carry out Data and Status stage of control transfer
// - If len = 0, it is equivalent to sending status only
@@ -46,6 +47,12 @@ bool usbd_control_xfer(uint8_t rhport, tusb_control_request_t const * request, v
// Send STATUS (zero length) packet
bool usbd_control_status(uint8_t rhport, tusb_control_request_t const * request);
+// Submit a usb transfer
+bool usbd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
+
+// Check if endpoint transferring is complete
+bool usbd_edpt_busy (uint8_t rhport, uint8_t ep_addr);
+
void usbd_edpt_stall(uint8_t rhport, uint8_t ep_addr);
void usbd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr);
bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr);
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-16 22:58:57 +0000