/* $OpenBSD: uwacom.c,v 1.7 2022/10/08 06:53:06 mglocker Exp $ */ /* * Copyright (c) 2016 Frank Groeneveld * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* Driver for USB Wacom tablets */ #include #include #include #include #include #include #include #include #include #include #include #include #define UWACOM_USE_PRESSURE 0x0001 /* button 0 is flaky, use tip pressure */ #define UWACOM_BIG_ENDIAN 0x0002 /* XY reporting byte order */ struct uwacom_softc { struct uhidev sc_hdev; struct hidms sc_ms; struct hid_location sc_loc_tip_press; int sc_flags; }; struct cfdriver uwacom_cd = { NULL, "uwacom", DV_DULL }; const struct usb_devno uwacom_devs[] = { { USB_VENDOR_WACOM, USB_PRODUCT_WACOM_INTUOS_DRAW }, { USB_VENDOR_WACOM, USB_PRODUCT_WACOM_ONE_S }, { USB_VENDOR_WACOM, USB_PRODUCT_WACOM_ONE_M } }; int uwacom_match(struct device *, void *, void *); void uwacom_attach(struct device *, struct device *, void *); int uwacom_detach(struct device *, int); void uwacom_intr(struct uhidev *, void *, u_int); int uwacom_enable(void *); void uwacom_disable(void *); int uwacom_ioctl(void *, u_long, caddr_t, int, struct proc *); const struct cfattach uwacom_ca = { sizeof(struct uwacom_softc), uwacom_match, uwacom_attach, uwacom_detach }; const struct wsmouse_accessops uwacom_accessops = { uwacom_enable, uwacom_ioctl, uwacom_disable, }; int uwacom_match(struct device *parent, void *match, void *aux) { struct uhidev_attach_arg *uha = aux; int size; void *desc; if (UHIDEV_CLAIM_MULTIPLE_REPORTID(uha)) return (UMATCH_NONE); if (usb_lookup(uwacom_devs, uha->uaa->vendor, uha->uaa->product) == NULL) return (UMATCH_NONE); uhidev_get_report_desc(uha->parent, &desc, &size); if (!hid_locate(desc, size, HID_USAGE2(HUP_WACOM, HUG_POINTER), uha->reportid, hid_input, NULL, NULL)) return (UMATCH_NONE); return (UMATCH_IFACECLASS); } void uwacom_attach(struct device *parent, struct device *self, void *aux) { struct uwacom_softc *sc = (struct uwacom_softc *)self; struct hidms *ms = &sc->sc_ms; struct uhidev_attach_arg *uha = (struct uhidev_attach_arg *)aux; struct usb_attach_arg *uaa = uha->uaa; int size, repid; void *desc; sc->sc_hdev.sc_intr = uwacom_intr; sc->sc_hdev.sc_parent = uha->parent; sc->sc_hdev.sc_udev = uaa->device; sc->sc_hdev.sc_report_id = uha->reportid; usbd_set_idle(uha->parent->sc_udev, uha->parent->sc_ifaceno, 0, 0); uhidev_get_report_desc(uha->parent, &desc, &size); repid = uha->reportid; sc->sc_hdev.sc_isize = hid_report_size(desc, size, hid_input, repid); sc->sc_hdev.sc_osize = hid_report_size(desc, size, hid_output, repid); sc->sc_hdev.sc_fsize = hid_report_size(desc, size, hid_feature, repid); ms->sc_device = self; ms->sc_rawmode = 1; ms->sc_flags = HIDMS_ABSX | HIDMS_ABSY; ms->sc_num_buttons = 3; ms->sc_loc_x.pos = 8; ms->sc_loc_x.size = 16; ms->sc_loc_y.pos = 24; ms->sc_loc_y.size = 16; ms->sc_tsscale.minx = 0; ms->sc_tsscale.miny = 0; ms->sc_loc_btn[0].pos = 0; ms->sc_loc_btn[0].size = 1; ms->sc_loc_btn[1].pos = 1; ms->sc_loc_btn[1].size = 1; ms->sc_loc_btn[2].pos = 2; ms->sc_loc_btn[2].size = 1; if (uha->uaa->product == USB_PRODUCT_WACOM_ONE_S) { static uByte reportbuf[2] = { 0x02, 0x02 }; uhidev_set_report(uha->parent, UHID_FEATURE_REPORT, 2, &reportbuf, 2); ms->sc_tsscale.maxx = 15200; ms->sc_tsscale.maxy = 9500; } if (uha->uaa->product == USB_PRODUCT_WACOM_INTUOS_DRAW) { sc->sc_flags = UWACOM_USE_PRESSURE | UWACOM_BIG_ENDIAN; sc->sc_loc_tip_press.pos = 43; sc->sc_loc_tip_press.size = 8; ms->sc_tsscale.maxx = 7600; ms->sc_tsscale.maxy = 4750; } hidms_attach(ms, &uwacom_accessops); } int uwacom_detach(struct device *self, int flags) { struct uwacom_softc *sc = (struct uwacom_softc *)self; struct hidms *ms = &sc->sc_ms; return hidms_detach(ms, flags); } void uwacom_intr(struct uhidev *addr, void *buf, u_int len) { struct uwacom_softc *sc = (struct uwacom_softc *)addr; struct hidms *ms = &sc->sc_ms; u_int32_t buttons = 0; uint8_t *data = (uint8_t *)buf; int i, x, y, pressure; if (ms->sc_enabled == 0) return; /* ignore proximity, it will cause invalid button 2 events */ if ((data[0] & 0xf0) == 0xc0) return; x = hid_get_data(data, len, &ms->sc_loc_x); y = hid_get_data(data, len, &ms->sc_loc_y); if (sc->sc_flags & UWACOM_BIG_ENDIAN) { x = be16toh(x); y = be16toh(y); } for (i = 0; i < ms->sc_num_buttons; i++) if (hid_get_data(data, len, &ms->sc_loc_btn[i])) buttons |= (1 << i); if (sc->sc_flags & UWACOM_USE_PRESSURE) { pressure = hid_get_data(data, len, &sc->sc_loc_tip_press); if (pressure > 10) buttons |= 1; else buttons &= ~1; } if (x != 0 || y != 0 || buttons != ms->sc_buttons) { wsmouse_position(ms->sc_wsmousedev, x, y); wsmouse_buttons(ms->sc_wsmousedev, buttons); wsmouse_input_sync(ms->sc_wsmousedev); } } int uwacom_enable(void *v) { struct uwacom_softc *sc = v; struct hidms *ms = &sc->sc_ms; int rv; if (usbd_is_dying(sc->sc_hdev.sc_udev)) return EIO; if ((rv = hidms_enable(ms)) != 0) return rv; return uhidev_open(&sc->sc_hdev); } void uwacom_disable(void *v) { struct uwacom_softc *sc = v; struct hidms *ms = &sc->sc_ms; hidms_disable(ms); uhidev_close(&sc->sc_hdev); } int uwacom_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) { struct uwacom_softc *sc = v; struct hidms *ms = &sc->sc_ms; int rc; switch (cmd) { case WSMOUSEIO_GTYPE: *(u_int *)data = WSMOUSE_TYPE_TPANEL; return 0; } rc = uhidev_ioctl(&sc->sc_hdev, cmd, data, flag, p); if (rc != -1) return rc; return hidms_ioctl(ms, cmd, data, flag, p); }