diff --git a/sys/arm/broadcom/bcm2835/bcm2835_ft5406.c b/sys/arm/broadcom/bcm2835/bcm2835_ft5406.c index d9a01b4a929a..24396b1bd90b 100644 --- a/sys/arm/broadcom/bcm2835/bcm2835_ft5406.c +++ b/sys/arm/broadcom/bcm2835/bcm2835_ft5406.c @@ -1,336 +1,336 @@ /*- * Copyright (C) 2016 Oleksandr Tymoshenko * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mbox_if.h" #ifdef DEBUG #define DPRINTF(fmt, ...) do { \ printf("%s:%u: ", __func__, __LINE__); \ printf(fmt, ##__VA_ARGS__); \ } while (0) #else #define DPRINTF(fmt, ...) #endif #define FT5406_LOCK(_sc) \ mtx_lock(&(_sc)->sc_mtx) #define FT5406_UNLOCK(_sc) \ mtx_unlock(&(_sc)->sc_mtx) #define FT5406_LOCK_INIT(_sc) \ mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \ "ft5406", MTX_DEF) #define FT5406_LOCK_DESTROY(_sc) \ mtx_destroy(&_sc->sc_mtx); #define FT5406_LOCK_ASSERT(_sc) \ mtx_assert(&(_sc)->sc_mtx, MA_OWNED) #define FT5406_DEVICE_MODE 0 #define FT5406_GESTURE_ID 1 #define FT5406_NUM_POINTS 2 #define FT5406_POINT_XH(n) (0 + 3 + (n)*6) #define FT5406_POINT_XL(n) (1 + 3 + (n)*6) #define FT5406_POINT_YH(n) (2 + 3 + (n)*6) #define FT5406_POINT_YL(n) (3 + 3 + (n)*6) #define FT5406_WINDOW_SIZE 64 #define GET_NUM_POINTS(buf) (buf[FT5406_NUM_POINTS]) #define GET_X(buf, n) (((buf[FT5406_POINT_XH(n)] & 0xf) << 8) | \ (buf[FT5406_POINT_XL(n)])) #define GET_Y(buf, n) (((buf[FT5406_POINT_YH(n)] & 0xf) << 8) | \ (buf[FT5406_POINT_YL(n)])) #define GET_TOUCH_ID(buf, n) ((buf[FT5406_POINT_YH(n)] >> 4) & 0xf) #define NO_POINTS 99 #define SCREEN_WIDTH 800 #define SCREEN_HEIGHT 480 #define SCREEN_WIDTH_MM 155 #define SCREEN_HEIGHT_MM 86 #define SCREEN_RES_X (SCREEN_WIDTH / SCREEN_WIDTH_MM) #define SCREEN_RES_Y (SCREEN_HEIGHT / SCREEN_HEIGHT_MM) #define MAX_TOUCH_ID (10 - 1) struct ft5406ts_softc { device_t sc_dev; struct mtx sc_mtx; int sc_tick; struct callout sc_callout; /* mbox buffer (mapped to KVA) */ uint8_t *touch_buf; /* initial hook for waiting mbox intr */ struct intr_config_hook sc_init_hook; struct evdev_dev *sc_evdev; uint8_t sc_window[FT5406_WINDOW_SIZE]; }; static evdev_open_t ft5406ts_ev_open; static evdev_close_t ft5406ts_ev_close; static const struct evdev_methods ft5406ts_evdev_methods = { .ev_open = &ft5406ts_ev_open, .ev_close = &ft5406ts_ev_close, }; static void ft5406ts_callout(void *data) { struct ft5406ts_softc *sc = (struct ft5406ts_softc *)data; int points; int id, i, x, y; FT5406_LOCK_ASSERT(sc); memcpy(sc->sc_window, sc->touch_buf, FT5406_WINDOW_SIZE); sc->touch_buf[FT5406_NUM_POINTS] = NO_POINTS; points = GET_NUM_POINTS(sc->sc_window); /* * No update from VC - do nothing. */ if (points == NO_POINTS) goto out; for (i = 0; i < points; i++) { id = GET_TOUCH_ID(sc->sc_window, i); x = GET_X(sc->sc_window, i); y = GET_Y(sc->sc_window, i); if (id > MAX_TOUCH_ID) { device_printf(sc->sc_dev, "bad touch id: %d", id); continue; } evdev_push_event(sc->sc_evdev, EV_ABS, ABS_MT_SLOT, id); evdev_push_event(sc->sc_evdev, EV_ABS, ABS_MT_TRACKING_ID, id); evdev_push_event(sc->sc_evdev, EV_ABS, ABS_MT_POSITION_X, x); evdev_push_event(sc->sc_evdev, EV_ABS, ABS_MT_POSITION_Y, y); } evdev_sync(sc->sc_evdev); out: callout_reset(&sc->sc_callout, sc->sc_tick, ft5406ts_callout, sc); } static int ft5406ts_ev_close(struct evdev_dev *evdev) { struct ft5406ts_softc *sc = evdev_get_softc(evdev); FT5406_LOCK_ASSERT(sc); callout_stop(&sc->sc_callout); return (0); } static int ft5406ts_ev_open(struct evdev_dev *evdev) { struct ft5406ts_softc *sc = evdev_get_softc(evdev); FT5406_LOCK_ASSERT(sc); callout_reset(&sc->sc_callout, sc->sc_tick, ft5406ts_callout, sc); return (0); } static void ft5406ts_init(void *arg) { struct ft5406ts_softc *sc = arg; struct bcm2835_mbox_tag_touchbuf msg; uint32_t touchbuf; int err; /* release this hook (continue boot) */ config_intrhook_disestablish(&sc->sc_init_hook); memset(&msg, 0, sizeof(msg)); msg.hdr.buf_size = sizeof(msg); msg.hdr.code = BCM2835_MBOX_CODE_REQ; msg.tag_hdr.tag = BCM2835_MBOX_TAG_GET_TOUCHBUF; msg.tag_hdr.val_buf_size = sizeof(msg.body); msg.tag_hdr.val_len = sizeof(msg.body); msg.end_tag = 0; /* call mailbox property */ err = bcm2835_mbox_property(&msg, sizeof(msg)); if (err) { device_printf(sc->sc_dev, "failed to get touchbuf address\n"); return; } if (msg.body.resp.address == 0) { device_printf(sc->sc_dev, "touchscreen not detected\n"); return; } touchbuf = VCBUS_TO_ARMC(msg.body.resp.address); sc->touch_buf = (uint8_t*)pmap_mapdev(touchbuf, FT5406_WINDOW_SIZE); /* 60Hz */ sc->sc_tick = hz * 17 / 1000; if (sc->sc_tick == 0) sc->sc_tick = 1; sc->sc_evdev = evdev_alloc(); evdev_set_name(sc->sc_evdev, device_get_desc(sc->sc_dev)); evdev_set_phys(sc->sc_evdev, device_get_nameunit(sc->sc_dev)); evdev_set_id(sc->sc_evdev, BUS_HOST, 0, 0, 0); evdev_set_methods(sc->sc_evdev, sc, &ft5406ts_evdev_methods); evdev_set_flag(sc->sc_evdev, EVDEV_FLAG_MT_STCOMPAT); evdev_set_flag(sc->sc_evdev, EVDEV_FLAG_MT_AUTOREL); evdev_support_prop(sc->sc_evdev, INPUT_PROP_DIRECT); evdev_support_event(sc->sc_evdev, EV_SYN); evdev_support_event(sc->sc_evdev, EV_ABS); evdev_support_abs(sc->sc_evdev, ABS_MT_SLOT, 0, MAX_TOUCH_ID, 0, 0, 0); evdev_support_abs(sc->sc_evdev, ABS_MT_TRACKING_ID, -1, MAX_TOUCH_ID, 0, 0, 0); evdev_support_abs(sc->sc_evdev, ABS_MT_POSITION_X, 0, SCREEN_WIDTH, 0, 0, SCREEN_RES_X); evdev_support_abs(sc->sc_evdev, ABS_MT_POSITION_Y, 0, SCREEN_HEIGHT, 0, 0, SCREEN_RES_Y); err = evdev_register_mtx(sc->sc_evdev, &sc->sc_mtx); if (err) { evdev_free(sc->sc_evdev); sc->sc_evdev = NULL; /* Avoid double free */ return; } sc->touch_buf[FT5406_NUM_POINTS] = NO_POINTS; callout_init_mtx(&sc->sc_callout, &sc->sc_mtx, 0); } static int ft5406ts_probe(device_t dev) { - if (!ofw_bus_is_compatible(dev, "rpi,rpi-ft5406")) + if (!ofw_bus_is_compatible(dev, "raspberrypi,firmware-ts")) return (ENXIO); device_set_desc(dev, "FT5406 touchscreen (VC memory interface)"); return (BUS_PROBE_DEFAULT); } static int ft5406ts_attach(device_t dev) { struct ft5406ts_softc *sc; /* set self dev */ sc = device_get_softc(dev); sc->sc_dev = dev; /* register callback for using mbox when interrupts are enabled */ sc->sc_init_hook.ich_func = ft5406ts_init; sc->sc_init_hook.ich_arg = sc; FT5406_LOCK_INIT(sc); if (config_intrhook_establish(&sc->sc_init_hook) != 0) { device_printf(dev, "config_intrhook_establish failed\n"); FT5406_LOCK_DESTROY(sc); return (ENOMEM); } return (0); } static int ft5406ts_detach(device_t dev) { struct ft5406ts_softc *sc; sc = device_get_softc(dev); evdev_free(sc->sc_evdev); FT5406_LOCK_DESTROY(sc); return (0); } static device_method_t ft5406ts_methods[] = { /* Device interface */ DEVMETHOD(device_probe, ft5406ts_probe), DEVMETHOD(device_attach, ft5406ts_attach), DEVMETHOD(device_detach, ft5406ts_detach), DEVMETHOD_END }; static devclass_t ft5406ts_devclass; static driver_t ft5406ts_driver = { "ft5406ts", ft5406ts_methods, sizeof(struct ft5406ts_softc), }; -DRIVER_MODULE(ft5406ts, ofwbus, ft5406ts_driver, ft5406ts_devclass, 0, 0); +DRIVER_MODULE(ft5406ts, simplebus, ft5406ts_driver, ft5406ts_devclass, 0, 0); MODULE_DEPEND(ft5406ts, evdev, 1, 1, 1);