1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
52 /* Sensor: Maxim DS1631 */
136 			return (-1);  in ds1631_write()
164 			return (-1);  in ds1631_read_1()
192 			return (-1);  in ds1631_read_2()
210 	if (strcmp(name, "temp-monitor") != 0 ||  in ds1631_probe()
215 	sc->sc_dev = dev;  in ds1631_probe()
216 	sc->sc_addr = iicbus_get_addr(dev);  in ds1631_probe()
218 	device_set_desc(dev, "Temp-Monitor DS1631");  in ds1631_probe()
230 	sc->enum_hook.ich_func = ds1631_start;  in ds1631_attach()
231 	sc->enum_hook.ich_arg = dev;  in ds1631_attach()
237 	 * the master. The openpic on mac-io is controlling the htpic.  in ds1631_attach()
238 	 * This one gets attached after the mac-io probing and then the  in ds1631_attach()
242 	if (config_intrhook_establish(&sc->enum_hook) != 0)  in ds1631_attach()
259 		return (-1);  in ds1631_init()
267 	 * Setup the resolution, 10-bit is enough. Each bit increase in  in ds1631_init()
275 		return (-1);  in ds1631_init()
283 		return (-1);  in ds1631_init()
286 	sc->init_done = 1;  in ds1631_init()
310 	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor",  in ds1631_start()
311 	    CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "DS1631 Sensor Information");  in ds1631_start()
313 	if (OF_getprop(child, "hwsensor-zone", &sc->sc_sensor.zone,  in ds1631_start()
315 		sc->sc_sensor.zone = 0;  in ds1631_start()
317 	plen = OF_getprop(child, "hwsensor-location", sc->sc_sensor.name,  in ds1631_start()
318 			  sizeof(sc->sc_sensor.name));  in ds1631_start()
319 	if (plen == -1) {  in ds1631_start()
321 		 * Ok, no hwsensor-location property, so let's look for a  in ds1631_start()
325 			plen = OF_getprop(node, "location", sc->sc_sensor.name,  in ds1631_start()
326 					  sizeof(sc->sc_sensor.name));  in ds1631_start()
329 	if (plen == -1) {  in ds1631_start()
330 		strcpy(sysctl_name, "sensor");  in ds1631_start()
332 		for (i = 0; i < strlen(sc->sc_sensor.name); i++) {  in ds1631_start()
333 			sysctl_name[i] = tolower(sc->sc_sensor.name[i]);  in ds1631_start()
341 	if (sc->sc_sensor.zone == 0) {  in ds1631_start()
342 		sc->sc_sensor.target_temp = 400 + ZERO_C_TO_K;  in ds1631_start()
343 		sc->sc_sensor.max_temp = 500 + ZERO_C_TO_K;  in ds1631_start()
345 		sc->sc_sensor.target_temp = 300 + ZERO_C_TO_K;  in ds1631_start()
346 		sc->sc_sensor.max_temp = 500 + ZERO_C_TO_K;  in ds1631_start()
349 	sc->sc_sensor.read =  in ds1631_start()
351 	pmac_thermal_sensor_register(&sc->sc_sensor);  in ds1631_start()
353 	sprintf(sysctl_desc,"%s %s", sc->sc_sensor.name, "(C)");  in ds1631_start()
356 	    "Sensor Information");  in ds1631_start()
357 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, "temp",  in ds1631_start()
361 	config_intrhook_disestablish(&sc->enum_hook);  in ds1631_start()
371 	if (!sc->init_done)  in ds1631_sensor_read()
372 		ds1631_init(sc->sc_dev, sc->sc_addr);  in ds1631_sensor_read()
374 	err = ds1631_read_2(sc->sc_dev, sc->sc_addr, DS1631_TEMP, buf);  in ds1631_sensor_read()
376 		device_printf(sc->sc_dev, "ds1631 read TEMP failed: %x\n", err);  in ds1631_sensor_read()
377 		return (-1);  in ds1631_sensor_read()
383 	 * The default mode of the ADC is 12-bit, the resolution is 0.0625 C  in ds1631_sensor_read()
385 	 * We use 10-bit resolution which seems enough, resolution is 0.25 C.  in ds1631_sensor_read()
397 	int temp;  in ds1631_sensor_sysctl()  local
402 	temp = ds1631_sensor_read(sc);  in ds1631_sensor_sysctl()
403 	if (temp < 0)  in ds1631_sensor_sysctl()
406 	error = sysctl_handle_int(oidp, &temp, 0, req);  in ds1631_sensor_sysctl()