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USB comms: part 3 towards @micolous PR#463

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* change variable 'sp' from global to static
* move code to open and close USB port to comms.c (OpenProxmark() and CloseProxmark())
* change scope of USBCommandReceived() to static
* (flasher still unchanged)
This commit is contained in:
pwpiwi 2018-04-28 10:09:16 +02:00 • committed by GitHub
parent 61aaee35cc
commit 818efbebb8
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3 changed files with 45 additions and 42 deletions
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47
client/comms.c
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@ -21,7 +21,7 @@
// Declare globals.
// Serial port that we are communicating with the PM3 on.
serial_port sp;
static serial_port sp;
// If TRUE, then there is no active connection to the PM3, and we will drop commands sent.
static bool offline;
@ -58,6 +58,38 @@ bool IsOffline() {
return offline;
}
bool OpenProxmark(char *portname, bool waitCOMPort, int timeout) {
if (!waitCOMPort) {
sp = uart_open(portname);
} else {
printf("Waiting for Proxmark to appear on %s ", portname);
fflush(stdout);
int openCount = 0;
do {
sp = uart_open(portname);
msleep(1000);
printf(".");
fflush(stdout);
} while(++openCount < timeout && (sp == INVALID_SERIAL_PORT || sp == CLAIMED_SERIAL_PORT));
printf("\n");
}
// check result of uart opening
if (sp == INVALID_SERIAL_PORT) {
printf("ERROR: invalid serial port\n");
return false;
} else if (sp == CLAIMED_SERIAL_PORT) {
printf("ERROR: serial port is claimed by another process\n");
return false;
} else {
return true;
}
}
void CloseProxmark(void) {
uart_close(sp);
}
void SendCommand(UsbCommand *c) {
#ifdef COMMS_DEBUG
printf("Sending %04x cmd\n", c->cmd);
@ -73,6 +105,7 @@ void SendCommand(UsbCommand *c) {
Not good.../holiman
**/
while(txcmd_pending);
txcmd = *c;
txcmd_pending = true;
}
@ -140,11 +173,7 @@ int getCommand(UsbCommand* response)
}
//-----------------------------------------------------------------------------
// Entry point into our code: called whenever we received a packet over USB
// that we weren't necessarily expecting, for example a debug print.
//-----------------------------------------------------------------------------
void UsbCommandReceived(UsbCommand *UC)
static void UsbCommandReceived(UsbCommand *UC)
{
switch(UC->cmd) {
// First check if we are handling a debug message
@ -170,7 +199,7 @@ void UsbCommandReceived(UsbCommand *UC)
} break;
default:
storeCommand(UC);
storeCommand(UC);
break;
}
@ -184,12 +213,12 @@ __attribute__((force_align_arg_pointer))
#endif
#endif
*uart_receiver(void *targ) {
receiver_arg *arg = (receiver_arg*)targ;
receiver_arg *conn = (receiver_arg*)targ;
size_t rxlen;
uint8_t rx[sizeof(UsbCommand)];
uint8_t *prx = rx;
while (arg->run) {
while (conn->run) {
rxlen = 0;
if (uart_receive(sp, prx, sizeof(UsbCommand) - (prx-rx), &rxlen) && rxlen) {
prx += rxlen;