1991/0807/pc/devuart.c (diff list | history)

1991/0806/sys/src/9/pc/devuart.c:51,56 – 1991/0807/sys/src/9/pc/devuart.c:51,57 (short | long | prev | next)
1991/0801		int port;
1991/0804		uchar sticky[8]; /* sticky write register values */
1991/0801		int printing; /* true if printing */
1991/0807		int enabled;
1991/0801		/* console interface */ int nostream; /* can't use the stream interface */
1991/0806/sys/src/9/pc/devuart.c:185,191 – 1991/0807/sys/src/9/pc/devuart.c:186,191
1991/0801		puts(cq, s, n); if(up->printing == 0){ ch = getc(cq); print("<start %2.2ux>", ch);/**/ if(ch >= 0){ up->printing = 1;
1991/0803		for(tries = 0; tries<10000 && !(uartrdreg(up, Lstat)&Outready);
1991/0806/sys/src/9/pc/devuart.c:214,220 – 1991/0807/sys/src/9/pc/devuart.c:214,219
1991/0806		cq = up->iq; while(l & Inready){ ch = uartrdreg(up, Data) & 0xff; print("<get %2.2ux>", ch); if(cq->putc) (*cq->putc)(cq, ch); else {
1991/0806/sys/src/9/pc/devuart.c:232,238 – 1991/0807/sys/src/9/pc/devuart.c:231,236
1991/0806		cq = up->oq; lock(cq); ch = getc(cq); print("<put %2.2ux>", ch);/**/ if(ch < 0){ up->printing = 0; wakeup(&cq->r);
1991/0806/sys/src/9/pc/devuart.c:244,250 – 1991/0807/sys/src/9/pc/devuart.c:242,249
1991/0801		void uartintr0(Ureg *ur) { uartintr(&uart[0]);
1991/0807		if(uart[0].enabled) uartintr(&uart[0]);
1991/0801		} void uartintr1(Ureg *ur)
1991/0806/sys/src/9/pc/devuart.c:261,266 – 1991/0807/sys/src/9/pc/devuart.c:260,273
1991/0806		int x;
1991/0801		/*
1991/0807		* turn on power to the port */ if(up == &uart[0]){ if(serial(0) < 0) print("can't turn on serial port power\n"); } /*
1991/0801		* set up i/o routines */ if(up->oq){
1991/0806/sys/src/9/pc/devuart.c:272,277 – 1991/0807/sys/src/9/pc/devuart.c:279,285
1991/0801		up->iq->ptr = up; up->sticky[Iena] |= Ircv; }
1991/0807		up->enabled = 1;
1991/0803		up->sticky[Iena] |= (1<<2) | (1<<3);
1991/0801		/*
1991/0806/sys/src/9/pc/devuart.c:284,297 – 1991/0807/sys/src/9/pc/devuart.c:292,324
1991/0801		*/ uartdtr(up, 1); uartrts(up, 1);
1991/0807		}
1991/0806
1991/0807		/* * turn off the uart */ uartdisable(Uart *up) {
1991/0806		/* * read interrupt status till there aren't any pending
1991/0807		* turn off interrupts
1991/0806		*/ while(uartrdreg(up, Istat) != 1){ x = splhi(); uartintr(up); splx(x);
1991/0807		up->sticky[Iena] = 0; uartwrreg(up, Iena, 0); /* * turn off DTR and RTS */ uartdtr(up, 0); uartrts(up, 0); up->enabled = 0; /* * turn off power */ if(up == &uart[0]){ if(serial(1) < 0) print("can't turn off serial power\n");
1991/0806		}
1991/0801		}
1991/0806/sys/src/9/pc/devuart.c:309,318 – 1991/0807/sys/src/9/pc/devuart.c:336,341
1991/0801		up->iq = iq; uartenable(up); uartsetbaud(up, baud);
1991/0806		if(port == 0){ if(serial(0) < 0) print("can't turn on serial port power\n"); }
1991/0801		if(iq){ /*
1991/0806/sys/src/9/pc/devuart.c:381,388 – 1991/0807/sys/src/9/pc/devuart.c:404,409
1991/0806
1991/0801		up = &uart[s->id];
1991/0806		uartenable(up); if(s->id==0 && serial(0)<0) print("can't turn on serial power\n");
1991/0801		qlock(up); up->wq = WR(q);
1991/0806/sys/src/9/pc/devuart.c:407,412 – 1991/0807/sys/src/9/pc/devuart.c:428,435
1991/0801		{ Uart *up = q->ptr;
1991/0807		uartdisable(up);
1991/0801		qlock(up); kprint("uartstclose: q=0x%ux, id=%d\n", q, up-uart); up->wq = 0;
1991/0806/sys/src/9/pc/devuart.c:414,422 – 1991/0807/sys/src/9/pc/devuart.c:437,442
1991/0801		WR(q)->ptr = 0; RD(q)->ptr = 0; qunlock(up);
1991/0806		if(serial(1) < 0) print("can't turn off serial power\n");
1991/0801		} static void