1 /*- 2 * Copyright (c) 2002 Adaptec Inc. 3 * All rights reserved. 4 * 5 * Written by: David Jeffery 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * FreeBSD: src/sys/dev/ips/ips_pci.c,v 1.7 2003/09/11 23:30:28 ps $ 29 * $DragonFly: src/sys/dev/raid/ips/ips_pci.c,v 1.3 2004/07/09 16:15:27 dillon Exp $ 30 */ 31 32 #include <sys/cdefs.h> 33 34 #include <dev/raid/ips/ips.h> 35 36 static int ips_pci_free(ips_softc_t *sc); 37 static void ips_intrhook(void *arg); 38 39 static int 40 ips_pci_probe(device_t dev) 41 { 42 43 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 44 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) { 45 device_set_desc(dev, "IBM ServeRAID Adapter"); 46 return 0; 47 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 48 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) { 49 device_set_desc(dev, "IBM ServeRAID Adapter"); 50 return (0); 51 } 52 return (ENXIO); 53 } 54 55 static int 56 ips_pci_attach(device_t dev) 57 { 58 u_int32_t command; 59 ips_softc_t *sc; 60 61 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) { 62 device_printf(dev, "device is disabled\n"); 63 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 64 return (0); 65 } 66 DEVICE_PRINTF(1, dev, "in attach.\n"); 67 sc = (ips_softc_t *)device_get_softc(dev); 68 if (sc == NULL) { 69 printf("how is sc NULL?!\n"); 70 return (ENXIO); 71 } 72 bzero(sc, sizeof(ips_softc_t)); 73 sc->dev = dev; 74 if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) { 75 sc->ips_adapter_reinit = ips_morpheus_reinit; 76 sc->ips_adapter_intr = ips_morpheus_intr; 77 sc->ips_issue_cmd = ips_issue_morpheus_cmd; 78 } else if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID) { 79 sc->ips_adapter_reinit = ips_copperhead_reinit; 80 sc->ips_adapter_intr = ips_copperhead_intr; 81 sc->ips_issue_cmd = ips_issue_copperhead_cmd; 82 } else 83 goto error; 84 /* make sure busmastering is on */ 85 command = pci_read_config(dev, PCIR_COMMAND, 1); 86 command |= PCIM_CMD_BUSMASTEREN; 87 pci_write_config(dev, PCIR_COMMAND, command, 1); 88 /* seting up io space */ 89 sc->iores = NULL; 90 if (command & PCIM_CMD_MEMEN) { 91 PRINTF(10, "trying MEMIO\n"); 92 if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) 93 sc->rid = PCIR_BAR(0); 94 else 95 sc->rid = PCIR_BAR(1); 96 sc->iotype = SYS_RES_MEMORY; 97 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, 98 ~0, 1, RF_ACTIVE); 99 } 100 if (sc->iores == NULL && command & PCIM_CMD_PORTEN) { 101 PRINTF(10, "trying PORTIO\n"); 102 sc->rid = PCIR_BAR(0); 103 sc->iotype = SYS_RES_IOPORT; 104 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, 105 ~0, 1, RF_ACTIVE); 106 } 107 if (sc->iores == NULL) { 108 device_printf(dev, "resource allocation failed\n"); 109 return (ENXIO); 110 } 111 sc->bustag = rman_get_bustag(sc->iores); 112 sc->bushandle = rman_get_bushandle(sc->iores); 113 /* 114 * allocate an interrupt. when does the irq become active? 115 * after leaving attach? 116 */ 117 sc->irqrid = 0; 118 if ((sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 119 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 120 device_printf(dev, "irq allocation failed\n"); 121 goto error; 122 } 123 if (bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, 124 sc->ips_adapter_intr, sc, &sc->irqcookie)) { 125 device_printf(dev, "irq setup failed\n"); 126 goto error; 127 } 128 if (bus_dma_tag_create( /* parent */ NULL, 129 /* alignemnt */ 1, 130 /* boundary */ 0, 131 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 132 /* highaddr */ BUS_SPACE_MAXADDR, 133 /* filter */ NULL, 134 /* filterarg */ NULL, 135 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 136 /* numsegs */ IPS_MAX_SG_ELEMENTS, 137 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT, 138 /* flags */ 0, 139 &sc->adapter_dmatag) != 0) { 140 printf("IPS can't alloc dma tag\n"); 141 goto error; 142 } 143 sc->ips_ich.ich_func = ips_intrhook; 144 sc->ips_ich.ich_arg = sc; 145 if (config_intrhook_establish(&sc->ips_ich) != 0) { 146 printf("IPS can't establish configuration hook\n"); 147 goto error; 148 } 149 return 0; 150 error: 151 ips_pci_free(sc); 152 return (ENXIO); 153 } 154 155 static void 156 ips_intrhook(void *arg) 157 { 158 struct ips_softc *sc = arg; 159 160 config_intrhook_disestablish(&sc->ips_ich); 161 if (ips_adapter_init(sc)) 162 ips_pci_free(sc); 163 else 164 sc->configured = 1; 165 } 166 167 static int 168 ips_pci_free(ips_softc_t *sc) 169 { 170 171 if (sc->adapter_dmatag) 172 bus_dma_tag_destroy(sc->adapter_dmatag); 173 if (sc->irqcookie) 174 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie); 175 if (sc->irqres) 176 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, 177 sc->irqres); 178 if (sc->iores) 179 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores); 180 sc->configured = 0; 181 return 0; 182 } 183 184 static int 185 ips_pci_detach(device_t dev) 186 { 187 ips_softc_t *sc; 188 189 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n"); 190 sc = (ips_softc_t *)device_get_softc(dev); 191 if (sc->configured) { 192 sc->configured = 0; 193 ips_flush_cache(sc); 194 if (ips_adapter_free(sc)) 195 return EBUSY; 196 ips_pci_free(sc); 197 IPS_LOCK_FREE(sc); 198 } 199 return 0; 200 } 201 202 static int 203 ips_pci_shutdown(device_t dev) 204 { 205 ips_softc_t *sc; 206 207 sc = (ips_softc_t *)device_get_softc(dev); 208 if (sc->configured) 209 ips_flush_cache(sc); 210 return 0; 211 } 212 213 static device_method_t ips_driver_methods[] = { 214 DEVMETHOD(device_probe, ips_pci_probe), 215 DEVMETHOD(device_attach, ips_pci_attach), 216 DEVMETHOD(device_detach, ips_pci_detach), 217 DEVMETHOD(device_shutdown, ips_pci_shutdown), 218 { 0, 0 } 219 }; 220 221 static driver_t ips_pci_driver = { 222 "ips", 223 ips_driver_methods, 224 sizeof(ips_softc_t), 225 }; 226 227 static devclass_t ips_devclass; 228 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0); 229