1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* 33 * PCI bus interface and resource allocation. 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 40 #include <dev/aac/aac_compat.h> 41 #include <sys/bus.h> 42 #include <sys/conf.h> 43 #include <sys/devicestat.h> 44 #include <sys/disk.h> 45 46 #include <machine/bus_memio.h> 47 #include <machine/bus.h> 48 #include <machine/resource.h> 49 #include <sys/rman.h> 50 51 #include <pci/pcireg.h> 52 #include <pci/pcivar.h> 53 54 #include <dev/aac/aacreg.h> 55 #include <dev/aac/aac_ioctl.h> 56 #include <dev/aac/aacvar.h> 57 58 static int aac_pci_probe(device_t dev); 59 static int aac_pci_attach(device_t dev); 60 61 static device_method_t aac_methods[] = { 62 /* Device interface */ 63 DEVMETHOD(device_probe, aac_pci_probe), 64 DEVMETHOD(device_attach, aac_pci_attach), 65 DEVMETHOD(device_detach, aac_detach), 66 DEVMETHOD(device_shutdown, aac_shutdown), 67 DEVMETHOD(device_suspend, aac_suspend), 68 DEVMETHOD(device_resume, aac_resume), 69 70 DEVMETHOD(bus_print_child, bus_generic_print_child), 71 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 72 { 0, 0 } 73 }; 74 75 static driver_t aac_pci_driver = { 76 "aac", 77 aac_methods, 78 sizeof(struct aac_softc) 79 }; 80 81 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0); 82 83 struct aac_ident 84 { 85 u_int16_t vendor; 86 u_int16_t device; 87 u_int16_t subvendor; 88 u_int16_t subdevice; 89 int hwif; 90 char *desc; 91 } aac_identifiers[] = { 92 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, "Dell PERC 2/Si"}, 93 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 94 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, "Dell PERC 3/Si"}, 95 {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, "Dell PERC 3/Si"}, 96 {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 97 {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 98 {0x1028, 0x0008, 0x1028, 0x00cf, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 99 {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 100 {0x9005, 0x0282, 0x9005, 0x0282, AAC_HWIF_I960RX, "Adaptec AAC-2622"}, 101 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"}, 102 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, "Adaptec AAC-3642"}, 103 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"}, 104 {0x1011, 0x0046, 0x9005, 0x1365, AAC_HWIF_STRONGARM, "Dell PERC 3/QC"}, /* XXX guess */ 105 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"}, 106 {0, 0, 0, 0, 0, 0} 107 }; 108 109 /****************************************************************************** 110 * Determine whether this is one of our supported adapters. 111 */ 112 static int 113 aac_pci_probe(device_t dev) 114 { 115 struct aac_ident *m; 116 117 debug_called(1); 118 119 for (m = aac_identifiers; m->vendor != 0; m++) { 120 if ((m->vendor == pci_get_vendor(dev)) && 121 (m->device == pci_get_device(dev)) && 122 ((m->subvendor == 0) || (m->subvendor == pci_get_subvendor(dev))) && 123 ((m->subdevice == 0) || ((m->subdevice == pci_get_subdevice(dev))))) { 124 125 device_set_desc(dev, m->desc); 126 return(-10); /* allow room to be overridden */ 127 } 128 } 129 return(ENXIO); 130 } 131 132 /****************************************************************************** 133 * Allocate resources for our device, set up the bus interface. 134 */ 135 static int 136 aac_pci_attach(device_t dev) 137 { 138 struct aac_softc *sc; 139 int i, error; 140 u_int32_t command; 141 142 debug_called(1); 143 144 /* 145 * Initialise softc. 146 */ 147 sc = device_get_softc(dev); 148 bzero(sc, sizeof(*sc)); 149 sc->aac_dev = dev; 150 151 /* assume failure is 'not configured' */ 152 error = ENXIO; 153 154 /* 155 * Verify that the adapter is correctly set up in PCI space. 156 */ 157 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 158 command |= PCIM_CMD_BUSMASTEREN; 159 pci_write_config(dev, PCIR_COMMAND, command, 2); 160 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 161 if (!(command & PCIM_CMD_BUSMASTEREN)) { 162 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 163 goto out; 164 } 165 if ((command & PCIM_CMD_MEMEN) == 0) { 166 device_printf(sc->aac_dev, "memory window not available\n"); 167 goto out; 168 } 169 170 /* 171 * Allocate the PCI register window. 172 */ 173 sc->aac_regs_rid = 0x10; /* first base address register */ 174 if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, SYS_RES_MEMORY, 175 &sc->aac_regs_rid, 0, ~0, 1, 176 RF_ACTIVE)) == NULL) { 177 device_printf(sc->aac_dev, "couldn't allocate register window\n"); 178 goto out; 179 } 180 sc->aac_btag = rman_get_bustag(sc->aac_regs_resource); 181 sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource); 182 183 /* 184 * Allocate and connect our interrupt. 185 */ 186 sc->aac_irq_rid = 0; 187 if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, 188 &sc->aac_irq_rid, 0, ~0, 1, 189 RF_SHAREABLE | RF_ACTIVE)) == NULL) { 190 device_printf(sc->aac_dev, "can't allocate interrupt\n"); 191 goto out; 192 } 193 if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY, 194 aac_intr, sc, &sc->aac_intr)) { 195 device_printf(sc->aac_dev, "can't set up interrupt\n"); 196 goto out; 197 } 198 199 /* assume failure is 'out of memory' */ 200 error = ENOMEM; 201 202 /* 203 * Allocate the parent bus DMA tag appropriate for our PCI interface. 204 * 205 * Note that some of these controllers are 64-bit capable. 206 */ 207 if (bus_dma_tag_create(NULL, /* parent */ 208 1, 0, /* algnmnt, boundary */ 209 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 210 BUS_SPACE_MAXADDR, /* highaddr */ 211 NULL, NULL, /* filter, filterarg */ 212 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 213 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 214 BUS_DMA_ALLOCNOW, /* flags */ 215 &sc->aac_parent_dmat)) { 216 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 217 goto out; 218 } 219 220 /* 221 * Create DMA tag for mapping buffers into controller-addressable space. 222 */ 223 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 224 1, 0, /* algnmnt, boundary */ 225 BUS_SPACE_MAXADDR, /* lowaddr */ 226 BUS_SPACE_MAXADDR, /* highaddr */ 227 NULL, NULL, /* filter, filterarg */ 228 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 229 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 230 0, /* flags */ 231 &sc->aac_buffer_dmat)) { 232 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 233 goto out; 234 } 235 236 /* 237 * Create DMA tag for mapping FIBs into controller-addressable space.. 238 */ 239 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 240 1, 0, /* algnmnt, boundary */ 241 BUS_SPACE_MAXADDR, /* lowaddr */ 242 BUS_SPACE_MAXADDR, /* highaddr */ 243 NULL, NULL, /* filter, filterarg */ 244 AAC_FIB_COUNT * 245 sizeof(struct aac_fib), 1, /* maxsize, nsegments */ 246 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 247 0, /* flags */ 248 &sc->aac_fib_dmat)) { 249 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n"); 250 goto out; 251 } 252 253 /* 254 * Detect the hardware interface version, set up the bus interface 255 * indirection. 256 */ 257 sc->aac_hwif = AAC_HWIF_UNKNOWN; 258 for (i = 0; aac_identifiers[i].vendor != 0; i++) { 259 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) && 260 (aac_identifiers[i].device == pci_get_device(dev))) { 261 sc->aac_hwif = aac_identifiers[i].hwif; 262 switch(sc->aac_hwif) { 263 case AAC_HWIF_I960RX: 264 debug(2, "set hardware up for i960Rx"); 265 sc->aac_if = aac_rx_interface; 266 break; 267 268 case AAC_HWIF_STRONGARM: 269 debug(2, "set hardware up for StrongARM"); 270 sc->aac_if = aac_sa_interface; 271 break; 272 } 273 break; 274 } 275 } 276 if (sc->aac_hwif == AAC_HWIF_UNKNOWN) { 277 device_printf(sc->aac_dev, "unknown hardware type\n"); 278 error = ENXIO; 279 goto out; 280 } 281 282 /* 283 * Do bus-independent initialisation. 284 */ 285 error = aac_attach(sc); 286 287 out: 288 if (error) 289 aac_free(sc); 290 return(error); 291 } 292