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 {0x9005, 0x0282, 0x9005, 0x0282, AAC_HWIF_I960RX, "Adaptec AAC-2622"}, 94 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"}, 95 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, "Adaptec AAC-3642"}, 96 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"}, 97 {0x1011, 0x0046, 0x9005, 0x1365, AAC_HWIF_STRONGARM, "Dell PERC 3/QC"}, /* XXX guess */ 98 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"}, 99 {0, 0, 0, 0, 0, 0} 100 }; 101 102 /******************************************************************************** 103 * Determine whether this is one of our supported adapters. 104 */ 105 static int 106 aac_pci_probe(device_t dev) 107 { 108 struct aac_ident *m; 109 110 debug_called(1); 111 112 for (m = aac_identifiers; m->vendor != 0; m++) { 113 if ((m->vendor == pci_get_vendor(dev)) && 114 (m->device == pci_get_device(dev)) && 115 ((m->subvendor == 0) || (m->subvendor == pci_get_subvendor(dev))) && 116 ((m->subdevice == 0) || ((m->subdevice == pci_get_subdevice(dev))))) { 117 118 device_set_desc(dev, m->desc); 119 return(-10); /* allow room to be overridden */ 120 } 121 } 122 return(ENXIO); 123 } 124 125 /******************************************************************************** 126 * Allocate resources for our device, set up the bus interface. 127 */ 128 static int 129 aac_pci_attach(device_t dev) 130 { 131 struct aac_softc *sc; 132 int i, error; 133 u_int32_t command; 134 135 debug_called(1); 136 137 /* 138 * Initialise softc. 139 */ 140 sc = device_get_softc(dev); 141 bzero(sc, sizeof(*sc)); 142 sc->aac_dev = dev; 143 144 /* assume failure is 'not configured' */ 145 error = ENXIO; 146 147 /* 148 * Verify that the adapter is correctly set up in PCI space. 149 */ 150 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 151 command |= PCIM_CMD_BUSMASTEREN; 152 pci_write_config(dev, PCIR_COMMAND, command, 2); 153 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 154 if (!(command & PCIM_CMD_BUSMASTEREN)) { 155 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 156 goto out; 157 } 158 if ((command & PCIM_CMD_MEMEN) == 0) { 159 device_printf(sc->aac_dev, "memory window not available\n"); 160 goto out; 161 } 162 163 /* 164 * Allocate the PCI register window. 165 */ 166 sc->aac_regs_rid = 0x10; /* first base address register */ 167 if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid, 168 0, ~0, 1, RF_ACTIVE)) == NULL) { 169 device_printf(sc->aac_dev, "couldn't allocate register window\n"); 170 goto out; 171 } 172 sc->aac_btag = rman_get_bustag(sc->aac_regs_resource); 173 sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource); 174 175 /* 176 * Allocate and connect our interrupt. 177 */ 178 sc->aac_irq_rid = 0; 179 if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, &sc->aac_irq_rid, 180 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 181 device_printf(sc->aac_dev, "can't allocate interrupt\n"); 182 goto out; 183 } 184 if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO, aac_intr, sc, &sc->aac_intr)) { 185 device_printf(sc->aac_dev, "can't set up interrupt\n"); 186 goto out; 187 } 188 189 /* assume failure is 'out of memory' */ 190 error = ENOMEM; 191 192 /* 193 * Allocate the parent bus DMA tag appropriate for our PCI interface. 194 * 195 * Note that some of these controllers are 64-bit capable. 196 */ 197 if (bus_dma_tag_create(NULL, /* parent */ 198 1, 0, /* alignment, boundary */ 199 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 200 BUS_SPACE_MAXADDR, /* highaddr */ 201 NULL, NULL, /* filter, filterarg */ 202 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 203 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 204 BUS_DMA_ALLOCNOW, /* flags */ 205 &sc->aac_parent_dmat)) { 206 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 207 goto out; 208 } 209 210 /* 211 * Create DMA tag for mapping buffers into controller-addressable space. 212 */ 213 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 214 1, 0, /* alignment, boundary */ 215 BUS_SPACE_MAXADDR, /* lowaddr */ 216 BUS_SPACE_MAXADDR, /* highaddr */ 217 NULL, NULL, /* filter, filterarg */ 218 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 219 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 220 0, /* flags */ 221 &sc->aac_buffer_dmat)) { 222 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 223 goto out; 224 } 225 226 /* 227 * Create DMA tag for mapping FIBs into controller-addressable space.. 228 */ 229 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 230 1, 0, /* alignment, boundary */ 231 BUS_SPACE_MAXADDR, /* lowaddr */ 232 BUS_SPACE_MAXADDR, /* highaddr */ 233 NULL, NULL, /* filter, filterarg */ 234 AAC_FIB_COUNT * sizeof(struct aac_fib), 1, /* maxsize, nsegments */ 235 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 236 0, /* flags */ 237 &sc->aac_fib_dmat)) { 238 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n"); 239 goto out; 240 } 241 242 /* 243 * Detect the hardware interface version, set up the bus interface indirection. 244 */ 245 sc->aac_hwif = AAC_HWIF_UNKNOWN; 246 for (i = 0; aac_identifiers[i].vendor != 0; i++) { 247 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) && 248 (aac_identifiers[i].device == pci_get_device(dev))) { 249 sc->aac_hwif = aac_identifiers[i].hwif; 250 switch(sc->aac_hwif) { 251 case AAC_HWIF_I960RX: 252 debug(2, "set hardware up for i960Rx"); 253 sc->aac_if = aac_rx_interface; 254 break; 255 256 case AAC_HWIF_STRONGARM: 257 debug(2, "set hardware up for StrongARM"); 258 sc->aac_if = aac_sa_interface; 259 break; 260 } 261 break; 262 } 263 } 264 if (sc->aac_hwif == AAC_HWIF_UNKNOWN) { 265 device_printf(sc->aac_dev, "unknown hardware type\n"); 266 error = ENXIO; 267 goto out; 268 } 269 270 /* 271 * Do bus-independent initialisation. 272 */ 273 error = aac_attach(sc); 274 275 out: 276 if (error) 277 aac_free(sc); 278 return(error); 279 } 280