1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
44 #include <machine/resource.h>
53 typedef void (*sio_conf_enter_f)(struct resource*, uint16_t);
54 typedef void (*sio_conf_exit_f)(struct resource*, uint16_t);
82 	struct resource*		io_res;
108 sio_read(struct resource* res, uint8_t reg)  in sio_read()
114 /* Read a word from two one-byte registers, big endian. */
116 sio_readw(struct resource* res, uint8_t reg)  in sio_readw()
127 sio_write(struct resource* res, uint8_t reg, uint8_t val)  in sio_write()
134 sio_ldn_select(struct siosc *sc, uint8_t ldn)  in sio_ldn_select()  argument
136 	mtx_assert(&sc->conf_lock, MA_OWNED);  in sio_ldn_select()
137 	if (ldn == sc->current_ldn)  in sio_ldn_select()
139 	sio_write(sc->io_res, sc->ldn_reg, ldn);  in sio_ldn_select()
140 	sc->current_ldn = ldn;  in sio_ldn_select()
144 sio_ldn_read(struct siosc *sc, uint8_t ldn, uint8_t reg)  in sio_ldn_read()  argument
146 	mtx_assert(&sc->conf_lock, MA_OWNED);  in sio_ldn_read()
147 	if (reg >= sc->enable_reg) {  in sio_ldn_read()
148 		sio_ldn_select(sc, ldn);  in sio_ldn_read()
149 		KASSERT(sc->current_ldn == ldn, ("sio_ldn_select failed"));  in sio_ldn_read()
151 	return (sio_read(sc->io_res, reg));  in sio_ldn_read()
155 sio_ldn_readw(struct siosc *sc, uint8_t ldn, uint8_t reg)  in sio_ldn_readw()  argument
157 	mtx_assert(&sc->conf_lock, MA_OWNED);  in sio_ldn_readw()
158 	if (reg >= sc->enable_reg) {  in sio_ldn_readw()
159 		sio_ldn_select(sc, ldn);  in sio_ldn_readw()
160 		KASSERT(sc->current_ldn == ldn, ("sio_ldn_select failed"));  in sio_ldn_readw()
162 	return (sio_readw(sc->io_res, reg));  in sio_ldn_readw()
166 sio_ldn_write(struct siosc *sc, uint8_t ldn, uint8_t reg, uint8_t val)  in sio_ldn_write()  argument
168 	mtx_assert(&sc->conf_lock, MA_OWNED);  in sio_ldn_write()
169 	if (reg <= sc->ldn_reg) {  in sio_ldn_write()
173 	sio_ldn_select(sc, ldn);  in sio_ldn_write()
174 	KASSERT(sc->current_ldn == ldn, ("sio_ldn_select failed"));  in sio_ldn_write()
175 	sio_write(sc->io_res, reg, val);  in sio_ldn_write()
179 sio_conf_enter(struct siosc *sc)  in sio_conf_enter()  argument
181 	mtx_lock(&sc->conf_lock);  in sio_conf_enter()
182 	sc->methods->enter(sc->io_res, sc->io_port);  in sio_conf_enter()
186 sio_conf_exit(struct siosc *sc)  in sio_conf_exit()  argument
188 	sc->methods->exit(sc->io_res, sc->io_port);  in sio_conf_exit()
189 	sc->current_ldn = 0xff;  in sio_conf_exit()
190 	mtx_unlock(&sc->conf_lock);  in sio_conf_exit()
194 ite_conf_enter(struct resource* res, uint16_t port)  in ite_conf_enter()
203 ite_conf_exit(struct resource* res, uint16_t port)  in ite_conf_exit()
215 nvt_conf_enter(struct resource* res, uint16_t port)  in nvt_conf_enter()
222 nvt_conf_exit(struct resource* res, uint16_t port)  in nvt_conf_exit()
234 fintek_conf_enter(struct resource* res, uint16_t port)  in fintek_conf_enter()
241 fintek_conf_exit(struct resource* res, uint16_t port)  in fintek_conf_exit()
417 		.descr = "Winbond 83627DHG-P",
422 		.descr = "Winbond 83667HG-B",
447 		.descr   = "Nuvoton NCT6796D-E",
512 superio_detect(device_t dev, bool claim, struct siosc *sc)  in superio_detect()  argument
514 	struct resource *res;  in superio_detect()
533 	 * Make a temporary resource reservation for hardware probing.  in superio_detect()
543 			device_printf(dev, "failed to allocate I/O resource\n");  in superio_detect()
553 		methods_table[m]->enter(res, port);  in superio_detect()
554 		if (methods_table[m]->vendor == SUPERIO_VENDOR_ITE) {  in superio_detect()
557 		} else if (methods_table[m]->vendor == SUPERIO_VENDOR_NUVOTON) {  in superio_detect()
561 		} else if (methods_table[m]->vendor == SUPERIO_VENDOR_FINTEK) {  in superio_detect()
568 		methods_table[m]->exit(res, port);  in superio_detect()
574 			    methods_table[m]->vendor)  in superio_detect()
597 	sc->methods = methods_table[m];  in superio_detect()
598 	sc->vendor = sc->methods->vendor;  in superio_detect()
599 	sc->known_devices = superio_table[i].devices;  in superio_detect()
600 	sc->io_res = res;  in superio_detect()
601 	sc->io_rid = rid;  in superio_detect()
602 	sc->io_port = port;  in superio_detect()
603 	sc->devid = devid;  in superio_detect()
604 	sc->revid = revid;  in superio_detect()
605 	sc->extid = superio_table[i].extid;  in superio_detect()
607 	KASSERT(sc->vendor == SUPERIO_VENDOR_ITE ||  in superio_detect()
608 	    sc->vendor == SUPERIO_VENDOR_NUVOTON ||  in superio_detect()
609 	    sc->vendor == SUPERIO_VENDOR_FINTEK,  in superio_detect()
610 	    ("Only ITE, Nuvoton and Fintek SuperIO-s are supported"));  in superio_detect()
611 	sc->ldn_reg = 0x07;  in superio_detect()
612 	sc->enable_reg = 0x30;	/* FIXME enable_reg not used by nctgpio(4). */  in superio_detect()
613 	sc->current_ldn = 0xff;	/* no device should have this */  in superio_detect()
617 	} else if (sc->vendor == SUPERIO_VENDOR_ITE) {  in superio_detect()
620 		    sc->devid, sc->revid);  in superio_detect()
649 		    "superio", -1);  in superio_identify()
663 	struct siosc *sc;  in superio_probe()  local
674 	sc = device_get_softc(dev);  in superio_probe()
675 	error = superio_detect(dev, true, sc);  in superio_probe()
684 	struct siosc *sc = device_get_softc(dev);  in superio_add_known_child()  local
695 	dinfo->ldn = ldn;  in superio_add_known_child()
696 	dinfo->type = type;  in superio_add_known_child()
697 	sio_conf_enter(sc);  in superio_add_known_child()
698 	dinfo->iobase = sio_ldn_readw(sc, ldn, 0x60);  in superio_add_known_child()
699 	dinfo->iobase2 = sio_ldn_readw(sc, ldn, 0x62);  in superio_add_known_child()
700 	dinfo->irq = sio_ldn_readw(sc, ldn, 0x70);  in superio_add_known_child()
701 	dinfo->dma = sio_ldn_readw(sc, ldn, 0x74);  in superio_add_known_child()
702 	sio_conf_exit(sc);  in superio_add_known_child()
703 	STAILQ_INSERT_TAIL(&sc->devlist, dinfo, link);  in superio_add_known_child()
709 	struct siosc *sc = device_get_softc(dev);  in superio_attach()  local
712 	mtx_init(&sc->conf_lock, device_get_nameunit(dev), "superio", MTX_DEF);  in superio_attach()
713 	STAILQ_INIT(&sc->devlist);  in superio_attach()
715 	for (i = 0; sc->known_devices[i].type != SUPERIO_DEV_NONE; i++) {  in superio_attach()
716 		superio_add_known_child(dev, sc->known_devices[i].type,  in superio_attach()
717 		    sc->known_devices[i].ldn);  in superio_attach()
723 	sc->chardev = make_dev(&superio_cdevsw, device_get_unit(dev),  in superio_attach()
725 	if (sc->chardev == NULL)  in superio_attach()
728 		sc->chardev->si_drv1 = sc;  in superio_attach()
735 	struct siosc *sc = device_get_softc(dev);  in superio_detach()  local
741 	if (sc->chardev != NULL)  in superio_detach()
742 		destroy_dev(sc->chardev);  in superio_detach()
743 	bus_release_resource(dev, SYS_RES_IOPORT, sc->io_rid, sc->io_res);  in superio_detach()
744 	mtx_destroy(&sc->conf_lock);  in superio_detach()
762 	dinfo->ldn = 0xff;  in superio_add_child()
763 	dinfo->type = SUPERIO_DEV_NONE;  in superio_add_child()
764 	dinfo->dev = child;  in superio_add_child()
765 	resource_list_init(&dinfo->resources);  in superio_add_child()
778 	resource_list_free(&dinfo->resources);  in superio_child_deleted()
790 		*result = dinfo->ldn;  in superio_read_ivar()
793 		*result = dinfo->type;  in superio_read_ivar()
796 		*result = dinfo->iobase;  in superio_read_ivar()
799 		*result = dinfo->iobase2;  in superio_read_ivar()
802 		*result = dinfo->irq;  in superio_read_ivar()
805 		*result = dinfo->dma;  in superio_read_ivar()
835 	return (&dinfo->resources);  in superio_get_resource_list()
845 	    devtype_to_str(dinfo->type), dinfo->ldn);  in superio_printf()
859 	rl = &dinfo->resources;  in superio_child_detached()
910 	struct siosc *sc = device_get_softc(sio_dev);  in superio_vendor()  local
912 	return (sc->vendor);  in superio_vendor()
919 	struct siosc *sc = device_get_softc(sio_dev);  in superio_devid()  local
921 	return (sc->devid);  in superio_devid()
928 	struct siosc *sc = device_get_softc(sio_dev);  in superio_revid()  local
930 	return (sc->revid);  in superio_revid()
937 	struct siosc *sc = device_get_softc(sio_dev);  in superio_extid()  local
939 	return (sc->extid);  in superio_extid()
946 	struct siosc *sc      = device_get_softc(sio_dev);  in superio_ldn_read()  local
949 	sio_conf_enter(sc);  in superio_ldn_read()
950 	v = sio_ldn_read(sc, ldn, reg);  in superio_ldn_read()
951 	sio_conf_exit(sc);  in superio_ldn_read()
960 	return (superio_ldn_read(dev, dinfo->ldn, reg));  in superio_read()
967 	struct siosc *sc      = device_get_softc(sio_dev);  in superio_ldn_write()  local
969 	sio_conf_enter(sc);  in superio_ldn_write()
970 	sio_ldn_write(sc, ldn, reg, val);  in superio_ldn_write()
971 	sio_conf_exit(sc);  in superio_ldn_write()
979 	return (superio_ldn_write(dev, dinfo->ldn, reg, val));  in superio_write()
986 	struct siosc *sc = device_get_softc(sio_dev);  in superio_dev_enabled()  local
991 	if (sc->vendor == SUPERIO_VENDOR_ITE && dinfo->ldn == 7)  in superio_dev_enabled()
994 	v = superio_read(dev, sc->enable_reg); /* FIXME enable_reg not used by nctgpio(4). */  in superio_dev_enabled()
1002 	struct siosc *sc = device_get_softc(sio_dev);  in superio_dev_enable()  local
1007 	if (sc->vendor == SUPERIO_VENDOR_ITE && dinfo->ldn == 7)  in superio_dev_enable()
1010 	sio_conf_enter(sc);  in superio_dev_enable()
1011 	v = sio_ldn_read(sc, dinfo->ldn, sc->enable_reg);  in superio_dev_enable()
1013 	sio_ldn_write(sc, dinfo->ldn, sc->enable_reg, v);  in superio_dev_enable()
1014 	sio_conf_exit(sc);  in superio_dev_enable()
1021 	struct siosc *sc = device_get_softc(sio_dev);  in superio_dev_disable()  local
1026 	if (sc->vendor == SUPERIO_VENDOR_ITE && dinfo->ldn == 7)  in superio_dev_disable()
1029 	sio_conf_enter(sc);  in superio_dev_disable()
1030 	v = sio_ldn_read(sc, dinfo->ldn, sc->enable_reg);  in superio_dev_disable()
1032 	sio_ldn_write(sc, dinfo->ldn, sc->enable_reg, v);  in superio_dev_disable()
1033 	sio_conf_exit(sc);  in superio_dev_disable()
1039 	struct siosc *sc = device_get_softc(superio);  in superio_find_dev()  local
1042 	if (ldn < -1 || ldn > UINT8_MAX)  in superio_find_dev()
1044 	if (type == SUPERIO_DEV_NONE && ldn == -1)  in superio_find_dev()
1047 	STAILQ_FOREACH(dinfo, &sc->devlist, link) {  in superio_find_dev()
1048 		if (ldn != -1 && dinfo->ldn != ldn)  in superio_find_dev()
1050 		if (type != SUPERIO_DEV_NONE && dinfo->type != type)  in superio_find_dev()
1052 		return (dinfo->dev);  in superio_find_dev()
1061 	struct siosc *sc;  in superio_ioctl()  local
1064 	sc = dev->si_drv1;  in superio_ioctl()
1068 		sio_conf_enter(sc);  in superio_ioctl()
1069 		s->val = sio_ldn_read(sc, s->ldn, s->cr);  in superio_ioctl()
1070 		sio_conf_exit(sc);  in superio_ioctl()
1073 		sio_conf_enter(sc);  in superio_ioctl()
1074 		sio_ldn_write(sc, s->ldn, s->cr, s->val);  in superio_ioctl()
1075 		sio_conf_exit(sc);  in superio_ioctl()