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Working (but still dev-mode; need some more different configurators)

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This commit is contained in:
Edward Emelianov
2025-04-02 18:26:02 +03:00
parent c449cb7108
commit faeac98318
18 changed files with 476 additions and 95 deletions
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38
F1:F103/BISS_C_encoders/usb_dev.c
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@@ -60,8 +60,8 @@ static uint8_t obuf[bTotNumEndpoints][RBOUTSZ], ibuf[bTotNumEndpoints][RBINSZ];
static volatile ringbuffer rbout[bTotNumEndpoints] = {OBUF(0), OBUF(1), OBUF(2)};
#define IBUF(N) {.data = ibuf[N], .length = RBINSZ, .head = 0, .tail = 0}
static volatile ringbuffer rbin[bTotNumEndpoints] = {IBUF(0), IBUF(1), IBUF(2)};
// last send data size
static volatile int lastdsz[bTotNumEndpoints] = {0};
// last send data size (<0 if USB transfer ready)
static volatile int lastdsz[bTotNumEndpoints] = {-1, -1, -1};
static void chkin(uint8_t ifno){
if(bufovrfl[ifno]) return; // allow user to know that previous buffer was overflowed and cleared
@@ -82,13 +82,19 @@ static void chkin(uint8_t ifno){
static void send_next(uint8_t ifno){
uint8_t usbbuff[USB_TXBUFSZ];
int buflen = RB_read((ringbuffer*)&rbout[ifno], (uint8_t*)usbbuff, USB_TXBUFSZ);
if(!CDCready[ifno]){
lastdsz[ifno] = -1;
return;
}
if(buflen == 0){
if(lastdsz[ifno] == 64) EP_Write(1+ifno, NULL, 0); // send ZLP after 64 bits packet when nothing more to send
lastdsz[ifno] = 0;
if(lastdsz[ifno] == USB_TXBUFSZ){
EP_Write(1+ifno, NULL, 0); // send ZLP after 64 bits packet when nothing more to send
lastdsz[ifno] = 0;
}else lastdsz[ifno] = -1; // OK. User can start sending data
return;
}else if(buflen < 0){
DBG("Buff busy");
lastdsz[ifno] = 0;
lastdsz[ifno] = -1;
return;
}
DBG("Got data in buf");
@@ -140,11 +146,13 @@ void WEAK clstate_handler(uint8_t ifno, uint16_t val){
DBGs(uhex2str(ifno));
DBGs(uhex2str(val));
CDCready[ifno] = val; // CONTROL_DTR | CONTROL_RTS -> interface connected; 0 -> disconnected
lastdsz[ifno] = -1;
}
// SEND_BREAK
void WEAK break_handler(uint8_t ifno){
CDCready[ifno] = 0;
lastdsz[ifno] = -1;
DBG("break_handler()");
DBGs(uhex2str(ifno));
}
@@ -154,6 +162,7 @@ void WEAK break_handler(uint8_t ifno){
void set_configuration(){
DBG("set_configuration()");
for(int i = 0; i < bTotNumEndpoints; ++i){
IWDG->KR = IWDG_REFRESH;
int r = EP_Init(1+i, EP_TYPE_BULK, USB_TXBUFSZ, USB_RXBUFSZ, rxtx_handler);
if(r){
DBG("Can't init EP");
@@ -215,6 +224,7 @@ void usb_class_request(config_pack_t *req, uint8_t *data, uint16_t datalen){
int USB_sendall(uint8_t ifno){
while(lastdsz[ifno] > 0){
if(!CDCready[ifno]) return FALSE;
IWDG->KR = IWDG_REFRESH;
}
return TRUE;
}
@@ -224,13 +234,17 @@ int USB_send(uint8_t ifno, const uint8_t *buf, int len){
if(!buf || !CDCready[ifno] || !len) return FALSE;
DBG("USB_send");
while(len){
if(!CDCready[ifno]) return FALSE;
IWDG->KR = IWDG_REFRESH;
int a = RB_write((ringbuffer*)&rbout[ifno], buf, len);
if(a > 0){
len -= a;
buf += a;
} else if (a < 0) continue; // do nothing if buffer is in reading state
if(lastdsz[ifno] == 0) send_next(ifno); // need to run manually - all data sent, so no IRQ on IN
}else if(a == 0){ // overfull
if(lastdsz[ifno] < 0) send_next(ifno);
}
}
if(buf[len-1] == '\n' && lastdsz[ifno] < 0) send_next(ifno);
return TRUE;
}
@@ -238,9 +252,15 @@ int USB_putbyte(uint8_t ifno, uint8_t byte){
if(!CDCready[ifno]) return FALSE;
int l = 0;
while((l = RB_write((ringbuffer*)&rbout[ifno], &byte, 1)) != 1){
if(l < 0) continue;
if(!CDCready[ifno]) return FALSE;
IWDG->KR = IWDG_REFRESH;
if(l == 0){ // overfull
if(lastdsz[ifno] < 0) send_next(ifno);
continue;
}
}
if(lastdsz[ifno] == 0) send_next(ifno); // need to run manually - all data sent, so no IRQ on IN
// send line if got EOL
if(byte == '\n' && lastdsz[ifno] < 0) send_next(ifno);
return TRUE;
}