hkbd(4): be more cautious & explicit about Apple vendor checking

Apply the changes to ukbd(4) as well.

Signed-off-by: tslight <tslight@pm.com>

Reviewed by:	wulf
MFC after:	1 month
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1998

sys/dev/hid/hkbd.c

@@ -73,6 +73,8 @@
 #include <dev/hid/hidquirk.h>
 #include <dev/hid/hidrdesc.h>
 
+#include "usbdevs.h"
+
 #ifdef EVDEV_SUPPORT
 #include <dev/evdev/input.h>
 #include <dev/evdev/evdev.h>
@@ -828,7 +830,10 @@ hkbd_parse_hid(struct hkbd_softc *sc, const uint8_t *ptr, uint32_t len,
 	sc->sc_kbd_size = hid_report_size_max(ptr, len,
 	    hid_input, &sc->sc_kbd_id);
 
+	const struct hid_device_info *hw = hid_get_device_info(sc->sc_dev);
+
 	/* investigate if this is an Apple Keyboard */
+	if (hw->idVendor == USB_VENDOR_APPLE) { /* belt & braces! */
 		if (hidbus_locate(ptr, len,
 		    HID_USAGE2(HUP_CONSUMER, HUG_APPLE_EJECT),
 		    hid_input, tlc_index, 0, &sc->sc_loc_apple_eject, &flags,
@@ -839,8 +844,8 @@ hkbd_parse_hid(struct hkbd_softc *sc, const uint8_t *ptr, uint32_t len,
 			DPRINTFN(1, "Found Apple eject-key\n");
 		}
 		/*
-	 * check the same vendor pages that linux does to find the one apple
-	 * uses for the function key.
+		 * check the same vendor pages that linux does to find the one
+		 * apple uses for the function key.
 		 */
 		static const uint16_t apple_pages[] = {
 			HUP_APPLE,     /* HID_UP_CUSTOM in linux */
@@ -851,8 +856,7 @@ hkbd_parse_hid(struct hkbd_softc *sc, const uint8_t *ptr, uint32_t len,
 		for (int i = 0; i < (int)nitems(apple_pages); i++) {
 			if (hidbus_locate(ptr, len,
 			    HID_USAGE2(apple_pages[i], 0x0003),
-				  hid_input, tlc_index, 0,
-				  &sc->sc_loc_apple_fn, &flags,
+			    hid_input, tlc_index, 0, &sc->sc_loc_apple_fn, &flags,
 			    &sc->sc_id_apple_fn, NULL)) {
 				if (flags & HIO_VARIABLE)
 					sc->sc_flags |= HKBD_FLAG_APPLE_FN;
@@ -861,6 +865,7 @@ hkbd_parse_hid(struct hkbd_softc *sc, const uint8_t *ptr, uint32_t len,
 				break;
 			}
 		}
+	}
 	
 	/* figure out event buffer */
 	if (hidbus_locate(ptr, len,

sys/dev/usb/input/ukbd.c

@@ -205,6 +205,7 @@ struct ukbd_softc {
 	uint16_t sc_inputs;
 	uint16_t sc_inputhead;
 	uint16_t sc_inputtail;
+	uint16_t sc_vendor_id;
 
 	uint8_t	sc_leds;		/* store for async led requests */
 	uint8_t	sc_iface_index;
@@ -1093,6 +1094,7 @@ ukbd_parse_hid(struct ukbd_softc *sc, const uint8_t *ptr, uint32_t len)
 	    hid_input, &sc->sc_kbd_id);
 
 	/* investigate if this is an Apple Keyboard */
+	if (sc->sc_vendor_id == USB_VENDOR_APPLE) {
 		if (hid_locate(ptr, len,
 		    HID_USAGE2(HUP_CONSUMER, HUG_APPLE_EJECT),
 		    hid_input, 0, &sc->sc_loc_apple_eject, &flags,
@@ -1102,8 +1104,8 @@ ukbd_parse_hid(struct ukbd_softc *sc, const uint8_t *ptr, uint32_t len)
 			DPRINTFN(1, "Found Apple eject-key\n");
 		}
 		/*
-	 * check the same vendor pages that linux does to find the one apple
-	 * uses for the function key.
+		 * check the same vendor pages that linux does to find the one
+		 * apple uses for the function key.
 		 */
 		static const uint16_t apple_pages[] = {
 			HUP_APPLE,     /* HID_UP_CUSTOM in linux */
@@ -1112,7 +1114,8 @@ ukbd_parse_hid(struct ukbd_softc *sc, const uint8_t *ptr, uint32_t len)
 			0xFFFF         /* Original FreeBSD check (Remove?) */
 		};
 		for (int i = 0; i < (int)nitems(apple_pages); i++) {
-		if (hid_locate(ptr, len, HID_USAGE2(apple_pages[i], 0x0003),
+			if (hid_locate(ptr, len,
+			    HID_USAGE2(apple_pages[i], 0x0003),
 			    hid_input, 0, &sc->sc_loc_apple_fn, &flags,
 			    &sc->sc_id_apple_fn)) {
 				if (flags & HIO_VARIABLE)
@@ -1122,6 +1125,7 @@ ukbd_parse_hid(struct ukbd_softc *sc, const uint8_t *ptr, uint32_t len)
 				break;
 			}
 		}
+	}
 
 	/* figure out event buffer */
 	if (hid_locate(ptr, len,
@@ -1208,6 +1212,7 @@ ukbd_attach(device_t dev)
 
 	sc->sc_udev = uaa->device;
 	sc->sc_iface = uaa->iface;
+	sc->sc_vendor_id = uaa->info.idVendor;
 	sc->sc_iface_index = uaa->info.bIfaceIndex;
 	sc->sc_iface_no = uaa->info.bIfaceNum;
 	sc->sc_mode = K_XLATE;

sys/modules/hid/hkbd/Makefile

@@ -3,6 +3,6 @@
 KMOD=	hkbd
 SRCS=	hkbd.c
 SRCS+=	opt_hid.h opt_evdev.h opt_kbd.h opt_hkbd.h
-SRCS+=	bus_if.h device_if.h
+SRCS+=	bus_if.h device_if.h usbdevs.h
 
 .include <bsd.kmod.mk>