/*- * Copyright (c) 2012 Robert N. M. Watson * All rights reserved. * * This software was developed by SRI International and the University of * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) * ("CTSRD"), as part of the DARPA CRASH research programme. * * 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 /* struct vt_mode */ #include /* video_adapter_t */ #include #include #include #include #include #include #include #include #include #include static int terasic_mtl_nexus_probe(device_t dev) { device_set_desc(dev, "Terasic Multi-touch LCD (MTL)"); return (BUS_PROBE_NOWILDCARD); } static int terasic_mtl_nexus_attach(device_t dev) { struct terasic_mtl_softc *sc; u_long pixel_maddr, text_maddr, reg_maddr; u_long pixel_msize, text_msize, reg_msize; int error; sc = device_get_softc(dev); sc->mtl_dev = dev; sc->mtl_unit = device_get_unit(dev); /* * Query non-standard hints to find the locations of our two memory * regions. Enforce certain alignment and size requirements. */ if (resource_long_value(device_get_name(dev), device_get_unit(dev), "reg_maddr", ®_maddr) != 0 || (reg_maddr % PAGE_SIZE != 0)) { device_printf(dev, "improper register address"); return (ENXIO); } if (resource_long_value(device_get_name(dev), device_get_unit(dev), "reg_msize", ®_msize) != 0 || (reg_msize % PAGE_SIZE != 0)) { device_printf(dev, "improper register size"); return (ENXIO); } if (resource_long_value(device_get_name(dev), device_get_unit(dev), "pixel_maddr", &pixel_maddr) != 0 || (pixel_maddr % PAGE_SIZE != 0)) { device_printf(dev, "improper pixel frame buffer address"); return (ENXIO); } if (resource_long_value(device_get_name(dev), device_get_unit(dev), "pixel_msize", &pixel_msize) != 0 || (pixel_msize % PAGE_SIZE != 0)) { device_printf(dev, "improper pixel frame buffer size"); return (ENXIO); } if (resource_long_value(device_get_name(dev), device_get_unit(dev), "text_maddr", &text_maddr) != 0 || (text_maddr % PAGE_SIZE != 0)) { device_printf(dev, "improper text frame buffer address"); return (ENXIO); } if (resource_long_value(device_get_name(dev), device_get_unit(dev), "text_msize", &text_msize) != 0 || (text_msize % PAGE_SIZE != 0)) { device_printf(dev, "improper text frame buffer size"); return (ENXIO); } /* * Allocate resources. */ sc->mtl_reg_rid = 0; sc->mtl_reg_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mtl_reg_rid, reg_maddr, reg_maddr + reg_msize - 1, reg_msize, RF_ACTIVE); if (sc->mtl_reg_res == NULL) { device_printf(dev, "couldn't map register memory\n"); error = ENXIO; goto error; } device_printf(sc->mtl_dev, "registers at mem %p-%p\n", (void *)reg_maddr, (void *)(reg_maddr + reg_msize)); sc->mtl_pixel_rid = 0; sc->mtl_pixel_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mtl_pixel_rid, pixel_maddr, pixel_maddr + pixel_msize - 1, pixel_msize, RF_ACTIVE); if (sc->mtl_pixel_res == NULL) { device_printf(dev, "couldn't map pixel memory\n"); error = ENXIO; goto error; } device_printf(sc->mtl_dev, "pixel frame buffer at mem %p-%p\n", (void *)pixel_maddr, (void *)(pixel_maddr + pixel_msize)); sc->mtl_text_rid = 0; sc->mtl_text_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mtl_text_rid, text_maddr, text_maddr + text_msize - 1, text_msize, RF_ACTIVE); if (sc->mtl_text_res == NULL) { device_printf(dev, "couldn't map text memory\n"); error = ENXIO; goto error; } device_printf(sc->mtl_dev, "text frame buffer at mem %p-%p\n", (void *)text_maddr, (void *)(text_maddr + text_msize)); error = terasic_mtl_attach(sc); if (error == 0) return (0); error: if (sc->mtl_text_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_text_rid, sc->mtl_text_res); if (sc->mtl_pixel_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_pixel_rid, sc->mtl_pixel_res); if (sc->mtl_reg_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_reg_rid, sc->mtl_reg_res); return (error); } static int terasic_mtl_nexus_detach(device_t dev) { struct terasic_mtl_softc *sc; sc = device_get_softc(dev); terasic_mtl_detach(sc); bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_text_rid, sc->mtl_text_res); bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_pixel_rid, sc->mtl_pixel_res); bus_release_resource(dev, SYS_RES_MEMORY, sc->mtl_reg_rid, sc->mtl_reg_res); return (0); } static device_method_t terasic_mtl_nexus_methods[] = { DEVMETHOD(device_probe, terasic_mtl_nexus_probe), DEVMETHOD(device_attach, terasic_mtl_nexus_attach), DEVMETHOD(device_detach, terasic_mtl_nexus_detach), { 0, 0 } }; static driver_t terasic_mtl_nexus_driver = { "terasic_mtl", terasic_mtl_nexus_methods, sizeof(struct terasic_mtl_softc), }; DRIVER_MODULE(mtl, nexus, terasic_mtl_nexus_driver, terasic_mtl_devclass, 0, 0);