catarrh/simtrace2
1
0
Fork 0
mirror of https://gitea.osmocom.org/sim-card/simtrace2.git synced 2026-03-18 06:08:31 +03:00
Code Issues Packages Projects Releases Wiki Activity

Sniffer with ringbuf, works SOMETIMES

Browse Source 
* 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
This commit is contained in:
Christina Quast
2015-04-12 09:31:36 +02:00
parent 5c6a299c71
commit 2b8a18bf3a
11 changed files with 80 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
firmware/src_simtrace/host_communication.c Normal file
View File

@@ -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;
}