1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  *  Copyright (c) 2000-2004
40 #include <sys/conf.h>		/* cdevsw stuff */
68 /* Per-port buffer size */
83 #define	pbio_addr(dev)		((dev)->si_drv1)
104 	char	buff[PBIO_BUFSIZ];	/* Per-port data buffer */
111 	struct portdata pd[PBIO_NPORTS];/* Per port data */  member
113 					/* The real port is write-only */
141 	return (bus_read_1(scp->res, off));  in pbinb()
148 	bus_write_1(scp->res, off, val);  in pboutb()
163 	scp->res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,  in pbioprobe()
165 	if (scp->res == NULL)  in pbioprobe()
177 		rman_get_start(scp->res), pbinb(scp, PBIO_CFG));  in pbioprobe()
182 		bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->res);  in pbioprobe()
189 		bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->res);  in pbioprobe()
196 	bus_release_resource(dev, SYS_RES_IOPORT, rid, scp->res);  in pbioprobe()
217 	sc->res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,  in pbioattach()
219 	if (sc->res == NULL)  in pbioattach()
225 	sc->iomode = 0x9b;		/* All ports to input */  in pbioattach()
227 	sx_init(&sc->lock, "pbio");  in pbioattach()
236 		(void)make_dev_s(&args, &sc->pd[i].port, "pbio%d%s", unit,  in pbioattach()
252 	sx_xlock(&scp->lock);  in pbioioctl()
255 		scp->pd[port].diff = *(int *)data;  in pbioioctl()
258 		scp->pd[port].ipace = *(int *)data;  in pbioioctl()
261 		scp->pd[port].opace = *(int *)data;  in pbioioctl()
264 		*(int *)data = scp->pd[port].diff;  in pbioioctl()
267 		*(int *)data = scp->pd[port].ipace;  in pbioioctl()
270 		*(int *)data = scp->pd[port].opace;  in pbioioctl()
275 	sx_xunlock(&scp->lock);  in pbioioctl()
296 	ocfg = scp->iomode;  in pbioopen()
299 	sx_xlock(&scp->lock);  in pbioopen()
302 		pboutb(scp, PBIO_CFG, scp->iomode = (ocfg & (~portbit)));  in pbioopen()
305 		pboutb(scp, PBIO_CFG, scp->iomode = (ocfg | portbit));  in pbioopen()
308 	sx_xunlock(&scp->lock);  in pbioopen()
340 		if (scp->pd[port].diff) {  in portval()
341 			if (*val != scp->pd[port].oldval) {  in portval()
342 				scp->pd[port].oldval = *val;  in portval()
345 			err = pause_sig("pbiopl", max(1, scp->pd[port].ipace));  in portval()
364 	sx_xlock(&scp->lock);  in pbioread()
365 	while (uio->uio_resid > 0) {  in pbioread()
366 		toread = min(uio->uio_resid, PBIO_BUFSIZ);  in pbioread()
367 		if ((err = uiomove(scp->pd[port].buff, toread, uio)) != 0)  in pbioread()
372 			scp->pd[port].buff[i] = val;  in pbioread()
373 			if (!scp->pd[port].diff && scp->pd[port].ipace)  in pbioread()
374 				pause_sig("pbioip", scp->pd[port].ipace);  in pbioread()
377 	sx_xunlock(&scp->lock);  in pbioread()
392 	sx_xlock(&scp->lock);  in pbiowrite()
393 	while (uio->uio_resid > 0) {  in pbiowrite()
394 		towrite = min(uio->uio_resid, PBIO_BUFSIZ);  in pbiowrite()
395 		if ((ret = uiomove(scp->pd[port].buff, towrite, uio)) != 0)  in pbiowrite()
398 			val = scp->pd[port].buff[i];  in pbiowrite()
419 			if (scp->pd[port].opace)  in pbiowrite()
420 				pause_sig("pbioop", scp->pd[port].opace);  in pbiowrite()
423 	sx_xunlock(&scp->lock);  in pbiowrite()