1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
31  * Digitizer configuration top-level collection support.
32 …tps://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-precision-touc…
57     "Digitizer configuration top-level collection");
143 	    ("impossible ctrl id %d", ctrl_id));  in hconf_set_feature_control()
144 	fc = &sc->feature_controls[ctrl_id];  in hconf_set_feature_control()
145 	if (fc->rlen <= 1)  in hconf_set_feature_control()
148 	fbuf = malloc(fc->rlen, M_TEMP, M_WAITOK | M_ZERO);  in hconf_set_feature_control()
149 	sx_xlock(&sc->lock);  in hconf_set_feature_control()
152 	 * Assume the report is write-only. Then we have to check for other  in hconf_set_feature_control()
155 	bzero(fbuf + 1, fc->rlen - 1);  in hconf_set_feature_control()
156 	for (i = 0; i < nitems(sc->feature_controls); i++) {  in hconf_set_feature_control()
157 		struct feature_control *ofc = &sc->feature_controls[i];  in hconf_set_feature_control()
159 		/* Skip unrelated report IDs. */  in hconf_set_feature_control()
160 		if (ofc->rid != fc->rid)  in hconf_set_feature_control()
162 		KASSERT(fc->rlen == ofc->rlen,  in hconf_set_feature_control()
164 		    fc->rid, fc->rlen, ofc->rlen));  in hconf_set_feature_control()
165 		hid_put_udata(fbuf + 1, ofc->rlen - 1, &ofc->loc,  in hconf_set_feature_control()
166 		    i == ctrl_id ? val : ofc->val);  in hconf_set_feature_control()
169 	fbuf[0] = fc->rid;  in hconf_set_feature_control()
171 	error = hid_set_report(sc->dev, fbuf, fc->rlen,  in hconf_set_feature_control()
172 	    HID_FEATURE_REPORT, fc->rid);  in hconf_set_feature_control()
174 		fc->val = val;  in hconf_set_feature_control()
176 	sx_unlock(&sc->lock);  in hconf_set_feature_control()
194 	fc = &sc->feature_controls[ctrl_id];  in hconf_feature_control_handler()
195 	value = fc->val;  in hconf_feature_control_handler()
197 	if (error != 0 || req->newptr == NULL)  in hconf_feature_control_handler()
216 	    hid_feature, tlc_index, 0, &fc->loc, &flags, &fc->rid, NULL))  in hconf_parse_feature()
222 	fc->rlen = hid_report_size(d_ptr, d_len, hid_feature, fc->rid);  in hconf_parse_feature()
259 	sc->dev = dev;  in hconf_attach()
260 	sx_init(&sc->lock, device_get_nameunit(dev));  in hconf_attach()
263 	for (i = 0; i < nitems(sc->feature_controls); i++) {  in hconf_attach()
264 		(void)hconf_parse_feature(&sc->feature_controls[i], tlc_index,  in hconf_attach()
266 		if (sc->feature_controls[i].rlen > 1) {  in hconf_attach()
273 		sc->feature_controls[i].val = feature_control_descrs[i].value;  in hconf_attach()
284 	sx_destroy(&sc->lock);  in hconf_detach()
296 	for (i = 0; i < nitems(sc->feature_controls); i++) {  in hconf_resume()
297 		if (sc->feature_controls[i].rlen < 2)  in hconf_resume()
300 		if (sc->feature_controls[i].val ==  in hconf_resume()
304 		    sc->feature_controls[i].val);  in hconf_resume()