Sniffer with ringbuf, works SOMETIMES
* Sniffer uses phone endpoints for communication and the ringbuffer
routines the phone communication uses
* Most times the Usart1 interrupt is not triggered, and therefore
no values are recorded
diff --git a/firmware/src_simtrace/host_communication.c b/firmware/src_simtrace/host_communication.c
new file mode 100644
index 0000000..87234d3
--- /dev/null
+++ b/firmware/src_simtrace/host_communication.c
@@ -0,0 +1,42 @@
+#include "board.h"
+
+static volatile bool write_to_host_in_progress = false;
+
+void USB_write_callback(uint8_t *pArg, uint8_t status, uint32_t transferred, uint32_t remaining)
+{
+ if (status != USBD_STATUS_SUCCESS) {
+ TRACE_ERROR("USB err status: %d (%s)\n", __FUNCTION__, status);
+ }
+ write_to_host_in_progress = false;
+ printf("WR_CB\n");
+}
+
+int send_to_host()
+{
+ static uint8_t msg[RING_BUFLEN];
+ int ret = 0;
+ int i;
+
+ for(i = 0; !rbuf_is_empty(&sim_rcv_buf) && i < sizeof(msg); i++) {
+ msg[i] = rbuf_read(&sim_rcv_buf);
+ }
+ printf("Wr %d\n", i);
+ write_to_host_in_progress = true;
+ ret = USBD_Write( PHONE_DATAIN, msg, i, (TransferCallback)&USB_write_callback, 0 );
+ if (ret != USBD_STATUS_SUCCESS) {
+ TRACE_ERROR("Error sending to host (%x)\n", ret);
+ write_to_host_in_progress = false;
+ }
+ return ret;
+}
+
+int check_data_from_phone()
+{
+ int ret = 0;
+
+ if((rbuf_is_empty(&sim_rcv_buf) || write_to_host_in_progress == true)) {
+ return ret;
+ }
+ ret = send_to_host();
+ return ret;
+}