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almost working U[S]ARTs

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This commit is contained in:
Edward Emelianov
2026-02-16 23:58:29 +03:00
parent 3ff87427ac
commit 73a0eeba8f
8 changed files with 79 additions and 78 deletions
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26
F3:F303/InterfaceBoard/usb_dev.c
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@@ -17,6 +17,7 @@
#include <string.h>
#include "Debug.h"
#include "hardware.h"
#include "ringbuffer.h"
#include "usart.h"
@@ -45,7 +46,7 @@ static volatile uint8_t bufovrfl[InterfacesAmount] = {0};
static uint8_t volatile rcvbuf[InterfacesAmount][USB_RXBUFSZ];
static uint8_t volatile rcvbuflen[InterfacesAmount] = {0};
// line coding
#define DEFL {115200, 0, 0, 8}
#define DEFL {9600, 0, 0, 8}
usb_LineCoding lineCoding[InterfacesAmount] = {DEFL,DEFL,DEFL,DEFL,DEFL,DEFL,DEFL};
// CDC configured and ready to use
volatile uint8_t CDCready[InterfacesAmount] = {0};
@@ -117,9 +118,11 @@ static void rxtx_handler(){
// SET_LINE_CODING
void linecoding_handler(uint8_t ifno, usb_LineCoding *lc){
//DBGch('0' + ifno);
//DBG("Linecoding");
lineCoding[ifno] = *lc;
usart_config(ifno, &lineCoding[ifno]); // lc would be real speed!
usart_start(ifno);
usart_start(ifno); // restart again with new configuration
}
// clear IN/OUT buffers on connection
@@ -136,10 +139,13 @@ static void clearbufs(uint8_t ifno){
// SET_CONTROL_LINE_STATE
void clstate_handler(uint8_t ifno, uint16_t val){
//DBGch('0' + ifno);
//DBG("CLSTATE");
CDCready[ifno] = val; // CONTROL_DTR | CONTROL_RTS -> interface connected; 0 -> disconnected
lastdsz[ifno] = -1;
if(val){
clearbufs(ifno);
//usart_config(ifno, &lineCoding[ifno]); // SET_CONTROL_LINE_STATE could be without SET_LINE_CODING
usart_start(ifno);
}else usart_stop(ifno); // turn of USART (if it is @ this interface)
}
@@ -147,6 +153,8 @@ void clstate_handler(uint8_t ifno, uint16_t val){
// SEND_BREAK - disconnect interface and clear its buffers
// this is a fake handler as classic CDC ACM never receives this
void break_handler(uint8_t ifno){
//DBGch('0' + ifno);
//DBG("BREAK");
CDCready[ifno] = 0;
usart_stop(ifno); // turn of USART (if it is @ this interface)
}
@@ -176,11 +184,14 @@ void usb_class_request(config_pack_t *req, uint8_t *data, uint16_t datalen){
case REQ_RECIPIENT_INTERFACE:
switch(req->bRequest){
case SET_LINE_CODING:
//DBG("SLC");
if(!data || !datalen) break; // wait for data
//DBG("test");
if(datalen == sizeof(usb_LineCoding))
linecoding_handler(ifno, (usb_LineCoding*)data);
break;
case GET_LINE_CODING:
DBG("GLC");
EP_WriteIRQ(0, (uint8_t*)&lineCoding[ifno], sizeof(lineCoding));
break;
case SET_CONTROL_LINE_STATE:
@@ -218,6 +229,7 @@ int USB_sendall(uint8_t ifno){
// put `buf` into queue to send
int USB_send(uint8_t ifno, const uint8_t *buf, int len){
if(!buf || !CDCready[ifno] || !len) return FALSE;
if(ifno != ICFG) DBG("USB_send");
uint32_t T0 = Tms;
while(len){
if(Tms - T0 > DISCONN_TMOUT){
@@ -242,7 +254,10 @@ int USB_send(uint8_t ifno, const uint8_t *buf, int len){
if(lastdsz[ifno] < 0) send_next(ifno);
}
}
if(buf[len-1] == '\n' && lastdsz[ifno] < 0) send_next(ifno);
if(buf[len-1] == '\n' && lastdsz[ifno] < 0){
if(ifno != ICFG) DBG("send_next");
send_next(ifno);
}
return TRUE;
}
@@ -263,7 +278,10 @@ int USB_putbyte(uint8_t ifno, uint8_t byte){
}
}
// send line if got EOL
if(byte == '\n' && lastdsz[ifno] < 0) send_next(ifno);
if(byte == '\n' && lastdsz[ifno] < 0){
if(ifno != ICFG) DBG("send_next");
send_next(ifno);
}
return TRUE;
}