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add debug flag, remove one bug (echo to one interface in another's interrupt); still didn't found why there's a trash of output in input buffer of interface 0

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This commit is contained in:
Edward Emelianov
2025-08-24 23:41:10 +03:00
parent 233eed8b12
commit 962d181e89
7 changed files with 53 additions and 18 deletions
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26
F1:F103/BISS_C_encoders/usb_dev.c
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@@ -38,6 +38,8 @@
#define CONTROL_DTR 0x01
#define CONTROL_RTS 0x02
// It's good to use debug here ONLY to debug into USART!
// never try to debug USB into USB!!!
#undef DBG
#define DBG(x)
#undef DBGs
@@ -141,8 +143,17 @@ void WEAK linecoding_handler(uint8_t ifno, usb_LineCoding *lc){
lineCoding[ifno] = *lc;
DBG("linecoding_handler");
DBGs(uhex2str(ifno));
CMDWR("Interface "); CMDWR(u2str(ifno));
CMDWR(" got linecoding with speed "); CMDWRn(u2str(lc->dwDTERate));
}
static void clearbufs(uint8_t ifno){
uint32_t T0 = Tms;
while(Tms - T0 < 10){ // wait no more than 10ms
if(1 == RB_clearbuf((ringbuffer*)&rbin[ifno])) break;
}
T0 = Tms;
while(Tms - T0 < 10){
if(1 == RB_clearbuf((ringbuffer*)&rbout[ifno])) break;
}
}
// SET_CONTROL_LINE_STATE
@@ -152,19 +163,14 @@ void WEAK clstate_handler(uint8_t ifno, uint16_t val){
DBGs(uhex2str(val));
CDCready[ifno] = val; // CONTROL_DTR | CONTROL_RTS -> interface connected; 0 -> disconnected
lastdsz[ifno] = -1;
if(val == 0) CMDWR("dis");
CMDWR("connected interface ");
CMDWRn(u2str(ifno));
if(val) clearbufs(ifno);
}
// SEND_BREAK
// SEND_BREAK - disconnect interface and clear its buffers
void WEAK break_handler(uint8_t ifno){
CDCready[ifno] = 0;
lastdsz[ifno] = -1;
DBG("break_handler()");
DBGs(uhex2str(ifno));
CMDWR("Disconnected interface ");
CMDWRn(u2str(ifno));
}
@@ -297,7 +303,7 @@ int USB_receive(uint8_t ifno, uint8_t *buf, int len){
if(bufovrfl[ifno]){
DBG("Buffer overflow");
DBGs(uhex2str(ifno));
while(1 != RB_clearbuf((ringbuffer*)&rbin[ifno]));
while(1 != RB_clearbuf((ringbuffer*)&rbin[ifno])); // run watchdog in case of problems
bufovrfl[ifno] = 0;
return -1;
}