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