dap_edpt_driver: handle deinit properly

Zap pending buffers if the interface went away. Also fix -Wformat warnings. Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>

Author: P33M

src/tusb_edpt_handler.c

@@ -41,6 +41,15 @@ void dap_edpt_init(void) {
 
 }
 
+bool dap_edpt_deinit(void)
+{
+memset(DAPRequestBuffer, 0, sizeof(DAPRequestBuffer));
+memset(DAPResponseBuffer, 0, sizeof(DAPResponseBuffer));
+USBRequestBuffer.wptr = USBRequestBuffer.rptr = 0;
+USBResponseBuffer.wptr = USBResponseBuffer.rptr = 0;
+return true;
+}
+
 void dap_edpt_reset(uint8_t __unused rhport)
 {
 itf_num = 0;
@@ -198,7 +207,7 @@ void dap_thread(void *ptr)
  */
 n = USBRequestBuffer.rptr;
 while (USBRequestBuffer.data[n % DAP_PACKET_COUNT][0] == ID_DAP_QueueCommands) {
-probe_info("%u %u DAP queued cmd %s len %02x\n",
+probe_info("%lu %lu DAP queued cmd %s len %02x\n",
  USBRequestBuffer.wptr, USBRequestBuffer.rptr,
  dap_cmd_string[USBRequestBuffer.data[n % DAP_PACKET_COUNT][0]], USBRequestBuffer.data[n % DAP_PACKET_COUNT][1]);
 USBRequestBuffer.data[n % DAP_PACKET_COUNT][0] = ID_DAP_ExecuteCommands;
@@ -211,7 +220,7 @@ void dap_thread(void *ptr)
 }
 // Read a single packet from the USB buffer into the DAP Request buffer
 memcpy(DAPRequestBuffer, RD_SLOT_PTR(USBRequestBuffer), DAP_PACKET_SIZE);
-probe_info("%u %u DAP cmd %s len %02x\n",
+probe_info("%lu %lu DAP cmd %s len %02x\n",
  USBRequestBuffer.wptr, USBRequestBuffer.rptr,
  dap_cmd_string[DAPRequestBuffer[0]], DAPRequestBuffer[1]);
 USBRequestBuffer.rptr++;
@@ -227,7 +236,7 @@ void dap_thread(void *ptr)
 }
 
 _resp_len = DAP_ExecuteCommand(DAPRequestBuffer, DAPResponseBuffer);
-probe_info("%u %u DAP resp %s\n",
+probe_info("%lu %lu DAP resp %s\n",
 USBResponseBuffer.wptr, USBResponseBuffer.rptr,
 dap_cmd_string[DAPResponseBuffer[0]]);
 
@@ -262,6 +271,7 @@ void dap_thread(void *ptr)
 usbd_class_driver_t const _dap_edpt_driver =
 {
 .init = dap_edpt_init,
+.deinit = dap_edpt_deinit,
 .reset = dap_edpt_reset,
 .open = dap_edpt_open,
 .control_xfer_cb = dap_edpt_control_xfer_cb,