hp300/dev/dcm.c

1 /*	$NetBSD: dcm.c,v 1.94 2024/01/16 05:48:28 thorpej Exp $	*/
65  * from Utah: $Hdr: dcm.c 1.29 92/01/21$
67  *	@(#)dcm.c	8.4 (Berkeley) 1/12/94
81 __KERNEL_RCSID(0, "$NetBSD: dcm.c,v 1.94 2024/01/16 05:48:28 thorpej Exp $");
295 CFATTACH_DECL_NEW(dcm, sizeof(struct dcm_softc),
362 	struct dcmdevice *dcm;
371 		dcm = dcm_cn;
388 		dcm = bus_space_vaddr(sc->sc_bst, sc->sc_bsh);
391 	sc->sc_dcm = dcm;
419 	sc->sc_modem[0] = &dcm->dcm_modem0;
420 	sc->sc_modem[1] = &dcm->dcm_modem1;
421 	sc->sc_modem[2] = &dcm->dcm_modem2;
422 	sc->sc_modem[3] = &dcm->dcm_modem3;
444 	dcm->dcm_ic = IC_IE;		/* turn all interrupts on */
468 			dcminit(dcm, DCMPORT(DCMUNIT(kgdb_dev)),
680 	struct dcmdevice *dcm = sc->sc_dcm;
690 	SEM_LOCK(dcm);
691 	if ((dcm->dcm_ic & IC_IR) == 0) {
692 		SEM_UNLOCK(dcm);
696 		pcnd[i] = dcm->dcm_icrtab[i].dcm_data;
697 		dcm->dcm_icrtab[i].dcm_data = 0;
703 	code = dcm->dcm_iir & IIR_MASK;
704 	dcm->dcm_iir = 0;	/* XXX doc claims read clears interrupt?! */
705 	mcode = dcm->dcm_modemintr;
706 	dcm->dcm_modemintr = 0;
707 	SEM_UNLOCK(dcm);
806 	struct dcmdevice *dcm = sc->sc_dcm;
807 	struct dcmpreg *pp = dcm_preg(dcm, port);
830 		    dcm->dcm_rfifos[3-port][head>>1].data_char == FRAME_START) {
841 	fifo = &dcm->dcm_rfifos[3-port][head>>1];
854 		fifo = head ? fifo+1 : &dcm->dcm_rfifos[3-port][0];
922 	struct dcmdevice *dcm = sc->sc_dcm;
950 			SEM_LOCK(dcm);
951 			dcm->dcm_modemchng |= (1 << port);
952 			dcm->dcm_cr |= CR_MODM;
953 			SEM_UNLOCK(dcm);
964 	struct dcmdevice *dcm;
972 	dcm = sc->sc_dcm;
995 		while (dcm->dcm_thead[port].ptr != dcm->dcm_ttail[port].ptr)
997 		SEM_LOCK(dcm);
998 		dcm->dcm_cmdtab[port].dcm_data |= CT_BRK;
999 		dcm->dcm_cr |= (1 << port);	/* start break */
1000 		SEM_UNLOCK(dcm);
1005 		SEM_LOCK(dcm);
1006 		dcm->dcm_cmdtab[port].dcm_data |= CT_BRK;
1007 		dcm->dcm_cr |= (1 << port);	/* end break */
1008 		SEM_UNLOCK(dcm);
1078 	struct dcmdevice *dcm;
1087 	dcm = sc->sc_dcm;
1133 	while (dcm->dcm_thead[port].ptr != dcm->dcm_ttail[port].ptr)
1138 	dcm->dcm_data[port].dcm_baud = ospeed;
1139 	dcm->dcm_data[port].dcm_conf = mode;
1140 	SEM_LOCK(dcm);
1141 	dcm->dcm_cmdtab[port].dcm_data |= CT_CON;
1142 	dcm->dcm_cr |= (1 << port);
1143 	SEM_UNLOCK(dcm);
1156 	struct dcmdevice *dcm;
1174 	dcm = sc->sc_dcm;
1198 	pp = dcm_preg(dcm, port);
1204 	fifo = &dcm->dcm_tfifos[3-port][tail];
1226 			SEM_LOCK(dcm);
1227 			dcm->dcm_cmdtab[port].dcm_data |= CT_TX;
1228 			dcm->dcm_cr |= (1 << port);
1229 			SEM_UNLOCK(dcm);
1232 		fifo = tail ? fifo+1 : &dcm->dcm_tfifos[3-port][0];
1253 		SEM_LOCK(dcm);
1254 		dcm->dcm_cmdtab[port].dcm_data |= CT_TX;
1255 		dcm->dcm_cr |= (1 << port);
1256 		SEM_UNLOCK(dcm);
1299 	struct dcmdevice *dcm;
1307 	dcm = sc->sc_dcm;
1340 		SEM_LOCK(dcm);
1341 		dcm->dcm_modemchng |= 1<<(unit & 3);
1342 		dcm->dcm_cr |= CR_MODM;
1343 		SEM_UNLOCK(dcm);
1357 	struct dcmdevice *dcm = sc->sc_dcm;
1382 		dcm->dcm_bmap[i].data_data = mask;
1396 				dcm->dcm_bmap[c].data_data |= (1 << i);
1399 				dcm->dcm_bmap[c].data_data |= (1 << i);
1412 	while (dcm->dcm_cr & CR_TIMER)
1414 	SEM_LOCK(dcm);
1415 	dcm->dcm_cr |= CR_TIMER;
1416 	SEM_UNLOCK(dcm);
1420 dcminit(struct dcmdevice *dcm, int port, int rate)
1431 	while (dcm->dcm_thead[port].ptr != dcm->dcm_ttail[port].ptr)
1437 	dcm->dcm_data[port].dcm_baud = ttspeedtab(rate, dcmspeedtab);
1438 	dcm->dcm_data[port].dcm_conf = mode;
1439 	SEM_LOCK(dcm);
1440 	dcm->dcm_cmdtab[port].dcm_data |= CT_CON;
1441 	dcm->dcm_cr |= (1 << port);
1442 	SEM_UNLOCK(dcm);
1458 	struct dcmdevice *dcm = sc->sc_dcm;
1465 	dcm->dcm_rsid = DCMRS;
1467 	dcm->dcm_rsid = 0;
1468 	dcm->dcm_ic = IC_IE;
1469 	dcm->dcm_cr = CR_SELFT;
1470 	while ((dcm->dcm_ic & IC_IR) == 0) {
1476 	while ((dcm->dcm_iir & IIR_SELFT) == 0) {
1482 	if (dcm->dcm_stcon != ST_OK) {
1486 			    dcm->dcm_stcon);
1490 	dcm->dcm_ic = IC_ID;
1507 	struct dcmdevice *dcm;
1514 	dcm = (struct dcmdevice *)va;
1516 	switch (dcm->dcm_rsid) {
1526 	dcminit(dcm, DCMCONSPORT, dcmdefaultrate);
1529 	dcm_cn = dcm;
1554 			printf("dcm%d: ", DCMUNIT(kgdb_dev));