1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
31 #include <sys/kernel.h>
61 	int slave;  member
136 	if (smbus_get_addr(dev) != -1)  in smb_probe()
151 	sc->sc_dev = dev;  in smb_attach()
160 	error = make_dev_s(&mda, &sc->sc_devnode, "smb%d", mda.mda_unit);  in smb_attach()
170 	destroy_dev(sc->sc_devnode);  in smb_detach()
181 	CP(*uaddr, *kaddr, slave);  in smbcopyincmd32()
199 	struct smb_softc *sc = dev->si_drv1;  in smbioctl()
200 	device_t smbdev = sc->sc_dev;  in smbioctl()
206 	 * If a specific slave device is being used, override any passed-in  in smbioctl()
207 	 * slave.  in smbioctl()
211 		s->slave = unit & 0x03ff;  in smbioctl()
216 	if (s->slave & 0x1)  in smbioctl()
253 		error = smbus_error(smbus_quick(parent, s->slave, SMB_QWRITE));  in smbioctl()
260 		error = smbus_error(smbus_quick(parent, s->slave, SMB_QREAD));  in smbioctl()
267 		error = smbus_error(smbus_sendb(parent, s->slave, s->cmd));  in smbioctl()
274 		error = smbus_error(smbus_recvb(parent, s->slave, &s->cmd));  in smbioctl()
281 		error = smbus_error(smbus_writeb(parent, s->slave, s->cmd,  in smbioctl()
282 						s->wdata.byte));  in smbioctl()
289 		error = smbus_error(smbus_writew(parent, s->slave,  in smbioctl()
290 						s->cmd, s->wdata.word));  in smbioctl()
300 		error = smbus_error(smbus_readb(parent, s->slave, s->cmd,  in smbioctl()
301 		    &s->rdata.byte));  in smbioctl()
304 		if (s->rbuf && s->rcount >= 1) {  in smbioctl()
305 			error = copyout(&s->rdata.byte, s->rbuf, 1);  in smbioctl()
306 			s->rcount = 1;  in smbioctl()
317 		error = smbus_error(smbus_readw(parent, s->slave, s->cmd,  in smbioctl()
318 		    &s->rdata.word));  in smbioctl()
321 		if (s->rbuf && s->rcount >= 2) {  in smbioctl()
322 			buf[0] = (u_char)s->rdata.word;  in smbioctl()
323 			buf[1] = (u_char)(s->rdata.word >> 8);  in smbioctl()
324 			error = copyout(buf, s->rbuf, 2);  in smbioctl()
325 			s->rcount = 2;  in smbioctl()
336 		error = smbus_error(smbus_pcall(parent, s->slave, s->cmd,  in smbioctl()
337 		    s->wdata.word, &s->rdata.word));  in smbioctl()
340 		if (s->rbuf && s->rcount >= 2) {  in smbioctl()
341 			buf[0] = (u_char)s->rdata.word;  in smbioctl()
342 			buf[1] = (u_char)(s->rdata.word >> 8);  in smbioctl()
343 			error = copyout(buf, s->rbuf, 2);  in smbioctl()
344 			s->rcount = 2;  in smbioctl()
353 		if (s->wcount < 0) {  in smbioctl()
357 		if (s->wcount > SMB_MAXBLOCKSIZE)  in smbioctl()
358 			s->wcount = SMB_MAXBLOCKSIZE;  in smbioctl()
359 		if (s->wcount)  in smbioctl()
360 			error = copyin(s->wbuf, buf, s->wcount);  in smbioctl()
363 		error = smbus_error(smbus_bwrite(parent, s->slave, s->cmd,  in smbioctl()
364 		    s->wcount, buf));  in smbioctl()
371 		if (s->rcount < 0) {  in smbioctl()
375 		if (s->rcount > SMB_MAXBLOCKSIZE)  in smbioctl()
376 			s->rcount = SMB_MAXBLOCKSIZE;  in smbioctl()
377 		error = smbus_error(smbus_bread(parent, s->slave, s->cmd,  in smbioctl()
381 		if (s->rcount > bcount)  in smbioctl()
382 			s->rcount = bcount;  in smbioctl()
383 		error = copyout(buf, s->rbuf, s->rcount);  in smbioctl()
404 		if (s->rbuf == NULL)  in smbioctl()