1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
64 	{ -1, 0 }
84 	reg = bus_read_4(sc->res[0], MHU_CHAN_RX_LP + MHU_INTR_STAT);  in arm_doorbell_lp_intr()
88 			bus_write_4(sc->res[0], MHU_CHAN_RX_LP + MHU_INTR_CLEAR,  in arm_doorbell_lp_intr()
90 			if (db->func != NULL)  in arm_doorbell_lp_intr()
91 				db->func(db->arg);  in arm_doorbell_lp_intr()
106 	reg = bus_read_4(sc->res[0], MHU_CHAN_RX_HP + MHU_INTR_STAT);  in arm_doorbell_hp_intr()
110 			bus_write_4(sc->res[0], MHU_CHAN_RX_HP + MHU_INTR_CLEAR,  in arm_doorbell_hp_intr()
112 			if (db->func != NULL)  in arm_doorbell_hp_intr()
113 				db->func(db->arg);  in arm_doorbell_hp_intr()
122 	if (!ofw_bus_is_compatible(dev, "arm,mhu-doorbell"))  in arm_doorbell_probe()
128 	device_set_desc(dev, "ARM MHU Doorbell");  in arm_doorbell_probe()
141 	sc->dev = dev;  in arm_doorbell_attach()
144 	if (node == -1)  in arm_doorbell_attach()
147 	if (bus_alloc_resources(dev, arm_doorbell_spec, sc->res) != 0) {  in arm_doorbell_attach()
153 	error = bus_setup_intr(dev, sc->res[1], INTR_TYPE_MISC | INTR_MPSAFE,  in arm_doorbell_attach()
154 	    NULL, arm_doorbell_lp_intr, sc, &sc->lp_intr_cookie);  in arm_doorbell_attach()
157 		bus_release_resources(dev, arm_doorbell_spec, sc->res);  in arm_doorbell_attach()
161 	error = bus_setup_intr(dev, sc->res[2], INTR_TYPE_MISC | INTR_MPSAFE,  in arm_doorbell_attach()
162 	    NULL, arm_doorbell_hp_intr, sc, &sc->hp_intr_cookie);  in arm_doorbell_attach()
165 		bus_release_resources(dev, arm_doorbell_spec, sc->res);  in arm_doorbell_attach()
198 	    "#mbox-cells", &nmboxes);  in arm_doorbell_ofw_get()
209 	error = ofw_bus_find_string_index(node, "mbox-names", name, &idx);  in arm_doorbell_ofw_get()
216 	error = ofw_bus_parse_xref_list_alloc(node, "mboxes", "#mbox-cells",  in arm_doorbell_ofw_get()
253 	db->dev = dev;  in arm_doorbell_ofw_get()
254 	db->db_dev = db_dev;  in arm_doorbell_ofw_get()
255 	db->chan = chan;  in arm_doorbell_ofw_get()
256 	db->db = db_id;  in arm_doorbell_ofw_get()
269 	sc = device_get_softc(db->db_dev);  in arm_doorbell_set()
271 	switch (db->chan) {  in arm_doorbell_set()
287 	bus_write_4(sc->res[0], offset + MHU_INTR_SET, (1 << db->db));  in arm_doorbell_set()
297 	sc = device_get_softc(db->db_dev);  in arm_doorbell_get()
299 	switch (db->chan) {  in arm_doorbell_get()
313 	reg = bus_read_4(sc->res[0], offset + MHU_INTR_STAT);  in arm_doorbell_get()
314 	if (reg & (1 << db->db)) {  in arm_doorbell_get()
315 		bus_write_4(sc->res[0], offset + MHU_INTR_CLEAR,  in arm_doorbell_get()
316 		    (1 << db->db));  in arm_doorbell_get()
328 	db->func = func;  in arm_doorbell_set_handler()
329 	db->arg = arg;  in arm_doorbell_set_handler()