1239675Srwatson/*- 2239675Srwatson * Copyright (c) 2012 Robert N. M. Watson 3239675Srwatson * All rights reserved. 4239675Srwatson * 5239675Srwatson * This software was developed by SRI International and the University of 6239675Srwatson * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 7239675Srwatson * ("CTSRD"), as part of the DARPA CRASH research programme. 8239675Srwatson * 9239675Srwatson * Redistribution and use in source and binary forms, with or without 10239675Srwatson * modification, are permitted provided that the following conditions 11239675Srwatson * are met: 12239675Srwatson * 1. Redistributions of source code must retain the above copyright 13239675Srwatson * notice, this list of conditions and the following disclaimer. 14239675Srwatson * 2. Redistributions in binary form must reproduce the above copyright 15239675Srwatson * notice, this list of conditions and the following disclaimer in the 16239675Srwatson * documentation and/or other materials provided with the distribution. 17239675Srwatson * 18239675Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19239675Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20239675Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21239675Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22239675Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23239675Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24239675Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25239675Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26239675Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27239675Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28239675Srwatson * SUCH DAMAGE. 29239675Srwatson */ 30239675Srwatson 31239675Srwatson#include <sys/cdefs.h> 32239675Srwatson__FBSDID("$FreeBSD$"); 33239675Srwatson 34239675Srwatson#include <sys/param.h> 35239675Srwatson#include <sys/bus.h> 36239675Srwatson#include <sys/condvar.h> 37239675Srwatson#include <sys/conf.h> 38239675Srwatson#include <sys/bio.h> 39239675Srwatson#include <sys/kernel.h> 40239675Srwatson#include <sys/lock.h> 41239675Srwatson#include <sys/malloc.h> 42239675Srwatson#include <sys/module.h> 43239675Srwatson#include <sys/mutex.h> 44239675Srwatson#include <sys/rman.h> 45239675Srwatson#include <sys/systm.h> 46239675Srwatson#include <sys/taskqueue.h> 47239675Srwatson 48239675Srwatson#include <machine/bus.h> 49239675Srwatson#include <machine/resource.h> 50239675Srwatson 51239675Srwatson#include <geom/geom_disk.h> 52239675Srwatson 53239675Srwatson#include <dev/altera/sdcard/altera_sdcard.h> 54239675Srwatson 55239675Srwatson/* 56239675Srwatson * Nexus bus attachment for the Altera SD Card IP core. Appropriate for most 57239675Srwatson * Altera FPGA SoC-style configurations in which the IP core will be exposed 58239675Srwatson * to the processor via a memory-mapped Avalon bus. 59239675Srwatson */ 60239675Srwatsonstatic int 61239675Srwatsonaltera_sdcard_nexus_probe(device_t dev) 62239675Srwatson{ 63239675Srwatson 64239675Srwatson device_set_desc(dev, "Altera Secure Data Card IP Core"); 65257336Snwhitehorn return (BUS_PROBE_NOWILDCARD); 66239675Srwatson} 67239675Srwatson 68239675Srwatsonstatic int 69239675Srwatsonaltera_sdcard_nexus_attach(device_t dev) 70239675Srwatson{ 71239675Srwatson struct altera_sdcard_softc *sc; 72239675Srwatson 73239675Srwatson sc = device_get_softc(dev); 74239675Srwatson sc->as_dev = dev; 75239675Srwatson sc->as_unit = device_get_unit(dev); 76239675Srwatson sc->as_rid = 0; 77239675Srwatson sc->as_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 78239675Srwatson &sc->as_rid, RF_ACTIVE); 79239675Srwatson if (sc->as_res == NULL) { 80239675Srwatson device_printf(dev, "couldn't map memory\n"); 81239675Srwatson return (ENXIO); 82239675Srwatson } 83239675Srwatson altera_sdcard_attach(sc); 84239675Srwatson return (0); 85239675Srwatson} 86239675Srwatson 87239675Srwatsonstatic int 88239675Srwatsonaltera_sdcard_nexus_detach(device_t dev) 89239675Srwatson{ 90239675Srwatson struct altera_sdcard_softc *sc; 91239675Srwatson 92239675Srwatson sc = device_get_softc(dev); 93239675Srwatson KASSERT(sc->as_res != NULL, ("%s: resources not allocated", 94239675Srwatson __func__)); 95239675Srwatson altera_sdcard_detach(sc); 96239675Srwatson bus_release_resource(dev, SYS_RES_MEMORY, sc->as_rid, sc->as_res); 97239675Srwatson return (0); 98239675Srwatson} 99239675Srwatson 100239675Srwatsonstatic device_method_t altera_sdcard_nexus_methods[] = { 101239675Srwatson DEVMETHOD(device_probe, altera_sdcard_nexus_probe), 102239675Srwatson DEVMETHOD(device_attach, altera_sdcard_nexus_attach), 103239675Srwatson DEVMETHOD(device_detach, altera_sdcard_nexus_detach), 104239675Srwatson { 0, 0 } 105239675Srwatson}; 106239675Srwatson 107239675Srwatsonstatic driver_t altera_sdcard_nexus_driver = { 108239675Srwatson "altera_sdcardc", 109239675Srwatson altera_sdcard_nexus_methods, 110239675Srwatson sizeof(struct altera_sdcard_softc), 111239675Srwatson}; 112239675Srwatson 113239675SrwatsonDRIVER_MODULE(altera_sdcard, nexus, altera_sdcard_nexus_driver, 114239675Srwatson altera_sdcard_devclass, 0, 0); 115