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/aacvar.h> 54 55 static int aac_pci_probe(device_t dev); 56 static int aac_pci_attach(device_t dev); 57 58 static device_method_t aac_methods[] = { 59 /* Device interface */ 60 DEVMETHOD(device_probe, aac_pci_probe), 61 DEVMETHOD(device_attach, aac_pci_attach), 62 DEVMETHOD(device_detach, aac_detach), 63 DEVMETHOD(device_shutdown, aac_shutdown), 64 DEVMETHOD(device_suspend, aac_suspend), 65 DEVMETHOD(device_resume, aac_resume), 66 67 DEVMETHOD(bus_print_child, bus_generic_print_child), 68 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 69 { 0, 0 } 70 }; 71 72 static driver_t aac_pci_driver = { 73 "aac", 74 aac_methods, 75 sizeof(struct aac_softc) 76 }; 77 78 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0); 79 80 struct aac_ident 81 { 82 u_int16_t vendor; 83 u_int16_t device; 84 u_int16_t subvendor; 85 u_int16_t subdevice; 86 int hwif; 87 char *desc; 88 } aac_identifiers[] = { 89 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, "Dell PERC 2/Si"}, 90 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, "Dell PERC 3/Di"}, 91 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, "Dell PERC 3/Si"}, 92 {0x9005, 0x0282, 0x9005, 0x0282, AAC_HWIF_I960RX, "Adaptec AAC-2622"}, 93 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, "Adaptec AAC-364"}, 94 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, "Adaptec AAC-3642"}, 95 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, "Dell PERC 2/QC"}, 96 {0x1011, 0x0046, 0x9005, 0x1365, AAC_HWIF_STRONGARM, "Dell PERC 3/QC"}, /* XXX guess */ 97 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, "HP NetRaid-4M"}, 98 {0, 0, 0, 0, 0, 0} 99 }; 100 101 /******************************************************************************** 102 * Determine whether this is one of our supported adapters. 103 */ 104 static int 105 aac_pci_probe(device_t dev) 106 { 107 struct aac_ident *m; 108 109 debug_called(1); 110 111 for (m = aac_identifiers; m->vendor != 0; m++) { 112 if ((m->vendor == pci_get_vendor(dev)) && 113 (m->device == pci_get_device(dev)) && 114 ((m->subvendor == 0) || (m->subvendor == pci_get_subvendor(dev))) && 115 ((m->subdevice == 0) || ((m->subdevice == pci_get_subdevice(dev))))) { 116 117 device_set_desc(dev, m->desc); 118 return(-10); /* allow room to be overridden */ 119 } 120 } 121 return(ENXIO); 122 } 123 124 /******************************************************************************** 125 * Allocate resources for our device, set up the bus interface. 126 */ 127 static int 128 aac_pci_attach(device_t dev) 129 { 130 struct aac_softc *sc; 131 int i, error; 132 u_int32_t command; 133 134 debug_called(1); 135 136 /* 137 * Initialise softc. 138 */ 139 sc = device_get_softc(dev); 140 bzero(sc, sizeof(*sc)); 141 sc->aac_dev = dev; 142 143 /* assume failure is 'not configured' */ 144 error = ENXIO; 145 146 /* 147 * Verify that the adapter is correctly set up in PCI space. 148 */ 149 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 150 command |= PCIM_CMD_BUSMASTEREN; 151 pci_write_config(dev, PCIR_COMMAND, command, 2); 152 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 153 if (!(command & PCIM_CMD_BUSMASTEREN)) { 154 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 155 goto out; 156 } 157 if ((command & PCIM_CMD_MEMEN) == 0) { 158 device_printf(sc->aac_dev, "memory window not available\n"); 159 goto out; 160 } 161 162 /* 163 * Allocate the PCI register window. 164 */ 165 sc->aac_regs_rid = 0x10; /* first base address register */ 166 if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev, SYS_RES_MEMORY, &sc->aac_regs_rid, 167 0, ~0, 1, RF_ACTIVE)) == NULL) { 168 device_printf(sc->aac_dev, "couldn't allocate register window\n"); 169 goto out; 170 } 171 sc->aac_btag = rman_get_bustag(sc->aac_regs_resource); 172 sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource); 173 174 /* 175 * Allocate and connect our interrupt. 176 */ 177 sc->aac_irq_rid = 0; 178 if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ, &sc->aac_irq_rid, 179 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 180 device_printf(sc->aac_dev, "can't allocate interrupt\n"); 181 goto out; 182 } 183 if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO, aac_intr, sc, &sc->aac_intr)) { 184 device_printf(sc->aac_dev, "can't set up interrupt\n"); 185 goto out; 186 } 187 188 /* assume failure is 'out of memory' */ 189 error = ENOMEM; 190 191 /* 192 * Allocate the parent bus DMA tag appropriate for our PCI interface. 193 * 194 * Note that some of these controllers are 64-bit capable. 195 */ 196 if (bus_dma_tag_create(NULL, /* parent */ 197 1, 0, /* alignment, boundary */ 198 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 199 BUS_SPACE_MAXADDR, /* highaddr */ 200 NULL, NULL, /* filter, filterarg */ 201 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 202 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 203 BUS_DMA_ALLOCNOW, /* flags */ 204 &sc->aac_parent_dmat)) { 205 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 206 goto out; 207 } 208 209 /* 210 * Create DMA tag for mapping buffers into controller-addressable space. 211 */ 212 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 213 1, 0, /* alignment, boundary */ 214 BUS_SPACE_MAXADDR, /* lowaddr */ 215 BUS_SPACE_MAXADDR, /* highaddr */ 216 NULL, NULL, /* filter, filterarg */ 217 MAXBSIZE, AAC_MAXSGENTRIES, /* maxsize, nsegments */ 218 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 219 0, /* flags */ 220 &sc->aac_buffer_dmat)) { 221 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 222 goto out; 223 } 224 225 /* 226 * Create DMA tag for mapping FIBs into controller-addressable space.. 227 */ 228 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 229 1, 0, /* alignment, boundary */ 230 BUS_SPACE_MAXADDR, /* lowaddr */ 231 BUS_SPACE_MAXADDR, /* highaddr */ 232 NULL, NULL, /* filter, filterarg */ 233 AAC_CLUSTER_COUNT * sizeof(struct aac_fib), 1,/* maxsize, nsegments */ 234 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 235 0, /* flags */ 236 &sc->aac_fib_dmat)) { 237 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n"); 238 goto out; 239 } 240 241 /* 242 * Detect the hardware interface version, set up the bus interface indirection. 243 */ 244 for (i = 0; aac_identifiers[i].vendor != 0; i++) { 245 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) && 246 (aac_identifiers[i].device == pci_get_device(dev))) { 247 sc->aac_hwif = aac_identifiers[i].hwif; 248 switch(sc->aac_hwif) { 249 case AAC_HWIF_I960RX: 250 debug(2, "set hardware up for i960Rx"); 251 sc->aac_if = aac_rx_interface; 252 break; 253 254 case AAC_HWIF_STRONGARM: 255 debug(2, "set hardware up for StrongARM"); 256 sc->aac_if = aac_sa_interface; 257 break; 258 } 259 break; 260 } 261 } 262 263 /* 264 * Do bus-independent initialisation. 265 */ 266 error = aac_attach(sc); 267 268 out: 269 if (error) 270 aac_free(sc); 271 return(error); 272 } 273