Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ida/ida_pci.c
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1 /*- 2 * Copyright (c) 1999,2000 Jonathan Lemon 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD: releng/6.0/sys/dev/ida/ida_pci.c 146734 2005-05-29 04:42:30Z nyan $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 35 #include <sys/bio.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 39 #include <machine/bus.h> 40 #include <machine/resource.h> 41 #include <sys/rman.h> 42 43 #include <dev/pci/pcireg.h> 44 #include <dev/pci/pcivar.h> 45 46 #include <geom/geom_disk.h> 47 48 #include <dev/ida/idavar.h> 49 #include <dev/ida/idareg.h> 50 51 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 52 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 53 54 #define IDA_PCI_MEMADDR PCIR_BAR(1) /* Mem I/O Address */ 55 56 #define IDA_DEVICEID_SMART 0xAE100E11 57 #define IDA_DEVICEID_DEC_SMART 0x00461011 58 #define IDA_DEVICEID_NCR_53C1510 0x00101000 59 60 static int 61 ida_v3_fifo_full(struct ida_softc *ida) 62 { 63 return (ida_inl(ida, R_CMD_FIFO) == 0); 64 } 65 66 static void 67 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 68 { 69 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 70 } 71 72 static bus_addr_t 73 ida_v3_done(struct ida_softc *ida) 74 { 75 bus_addr_t completed; 76 77 completed = ida_inl(ida, R_DONE_FIFO); 78 if (completed == -1) { 79 return (0); /* fifo is empty */ 80 } 81 return (completed); 82 } 83 84 static int 85 ida_v3_int_pending(struct ida_softc *ida) 86 { 87 return (ida_inl(ida, R_INT_PENDING)); 88 } 89 90 static void 91 ida_v3_int_enable(struct ida_softc *ida, int enable) 92 { 93 if (enable) 94 ida->flags |= IDA_INTERRUPTS; 95 else 96 ida->flags &= ~IDA_INTERRUPTS; 97 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 98 } 99 100 static int 101 ida_v4_fifo_full(struct ida_softc *ida) 102 { 103 return (ida_inl(ida, R_42XX_REQUEST) != 0); 104 } 105 106 static void 107 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 108 { 109 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 110 } 111 112 static bus_addr_t 113 ida_v4_done(struct ida_softc *ida) 114 { 115 bus_addr_t completed; 116 117 completed = ida_inl(ida, R_42XX_REPLY); 118 if (completed == -1) 119 return (0); /* fifo is empty */ 120 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 121 return (completed); 122 } 123 124 static int 125 ida_v4_int_pending(struct ida_softc *ida) 126 { 127 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 128 } 129 130 static void 131 ida_v4_int_enable(struct ida_softc *ida, int enable) 132 { 133 if (enable) 134 ida->flags |= IDA_INTERRUPTS; 135 else 136 ida->flags &= ~IDA_INTERRUPTS; 137 ida_outl(ida, R_42XX_INT_MASK, 138 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 139 } 140 141 static struct ida_access ida_v3_access = { 142 ida_v3_fifo_full, 143 ida_v3_submit, 144 ida_v3_done, 145 ida_v3_int_pending, 146 ida_v3_int_enable, 147 }; 148 149 static struct ida_access ida_v4_access = { 150 ida_v4_fifo_full, 151 ida_v4_submit, 152 ida_v4_done, 153 ida_v4_int_pending, 154 ida_v4_int_enable, 155 }; 156 157 static struct ida_board board_id[] = { 158 { 0x40300E11, "Compaq SMART-2/P array controller", 159 &ida_v3_access, 0 }, 160 { 0x40310E11, "Compaq SMART-2SL array controller", 161 &ida_v3_access, 0 }, 162 { 0x40320E11, "Compaq Smart Array 3200 controller", 163 &ida_v3_access, 0 }, 164 { 0x40330E11, "Compaq Smart Array 3100ES controller", 165 &ida_v3_access, 0 }, 166 { 0x40340E11, "Compaq Smart Array 221 controller", 167 &ida_v3_access, 0 }, 168 169 { 0x40400E11, "Compaq Integrated Array controller", 170 &ida_v4_access, IDA_FIRMWARE }, 171 { 0x40480E11, "Compaq RAID LC2 controller", 172 &ida_v4_access, IDA_FIRMWARE }, 173 { 0x40500E11, "Compaq Smart Array 4200 controller", 174 &ida_v4_access, 0 }, 175 { 0x40510E11, "Compaq Smart Array 4250ES controller", 176 &ida_v4_access, 0 }, 177 { 0x40580E11, "Compaq Smart Array 431 controller", 178 &ida_v4_access, 0 }, 179 180 { 0, "", 0, 0 }, 181 }; 182 183 static int ida_pci_probe(device_t dev); 184 static int ida_pci_attach(device_t dev); 185 186 static device_method_t ida_pci_methods[] = { 187 DEVMETHOD(device_probe, ida_pci_probe), 188 DEVMETHOD(device_attach, ida_pci_attach), 189 DEVMETHOD(device_detach, ida_detach), 190 191 DEVMETHOD(bus_print_child, bus_generic_print_child), 192 193 { 0, 0 } 194 }; 195 196 static driver_t ida_pci_driver = { 197 "ida", 198 ida_pci_methods, 199 sizeof(struct ida_softc) 200 }; 201 202 static devclass_t ida_devclass; 203 204 static struct ida_board * 205 ida_pci_match(device_t dev) 206 { 207 int i; 208 u_int32_t id, sub_id; 209 210 id = pci_get_devid(dev); 211 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 212 213 if (id == IDA_DEVICEID_SMART || 214 id == IDA_DEVICEID_DEC_SMART || 215 id == IDA_DEVICEID_NCR_53C1510) { 216 for (i = 0; board_id[i].board; i++) 217 if (board_id[i].board == sub_id) 218 return (&board_id[i]); 219 } 220 return (NULL); 221 } 222 223 static int 224 ida_pci_probe(device_t dev) 225 { 226 struct ida_board *board = ida_pci_match(dev); 227 228 if (board != NULL) { 229 device_set_desc(dev, board->desc); 230 return (BUS_PROBE_DEFAULT); 231 } 232 return (ENXIO); 233 } 234 235 static int 236 ida_pci_attach(device_t dev) 237 { 238 struct ida_board *board = ida_pci_match(dev); 239 u_int32_t id = pci_get_devid(dev); 240 struct ida_softc *ida; 241 u_int command; 242 int error, rid; 243 244 command = pci_read_config(dev, PCIR_COMMAND, 1); 245 246 /* 247 * it appears that this board only does MEMIO access. 248 */ 249 if ((command & PCIM_CMD_MEMEN) == 0) { 250 device_printf(dev, "Only memory mapped I/O is supported\n"); 251 return (ENXIO); 252 } 253 254 ida = (struct ida_softc *)device_get_softc(dev); 255 ida->dev = dev; 256 ida->cmd = *board->accessor; 257 ida->flags = board->flags; 258 259 ida->regs_res_type = SYS_RES_MEMORY; 260 ida->regs_res_id = IDA_PCI_MEMADDR; 261 if (id == IDA_DEVICEID_DEC_SMART) 262 ida->regs_res_id = PCIR_BAR(0); 263 264 ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type, 265 &ida->regs_res_id, RF_ACTIVE); 266 if (ida->regs == NULL) { 267 device_printf(dev, "can't allocate memory resources\n"); 268 return (ENOMEM); 269 } 270 271 error = bus_dma_tag_create( 272 /* parent */ NULL, 273 /* alignment */ 1, 274 /* boundary */ 0, 275 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 276 /* highaddr */ BUS_SPACE_MAXADDR, 277 /* filter */ NULL, 278 /* filterarg */ NULL, 279 /* maxsize */ MAXBSIZE, 280 /* nsegments */ IDA_NSEG, 281 /* maxsegsize */ BUS_SPACE_MAXSIZE_32BIT, 282 /* flags */ BUS_DMA_ALLOCNOW, 283 /* lockfunc */ NULL, 284 /* lockarg */ NULL, 285 &ida->parent_dmat); 286 if (error != 0) { 287 device_printf(dev, "can't allocate DMA tag\n"); 288 ida_free(ida); 289 return (ENOMEM); 290 } 291 292 rid = 0; 293 ida->irq_res_type = SYS_RES_IRQ; 294 ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid, 295 RF_ACTIVE | RF_SHAREABLE); 296 if (ida->irq == NULL) { 297 ida_free(ida); 298 return (ENOMEM); 299 } 300 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY, 301 ida_intr, ida, &ida->ih); 302 if (error) { 303 device_printf(dev, "can't setup interrupt\n"); 304 ida_free(ida); 305 return (ENOMEM); 306 } 307 308 error = ida_init(ida); 309 if (error) { 310 ida_free(ida); 311 return (error); 312 } 313 ida_attach(ida); 314 ida->flags |= IDA_ATTACHED; 315 316 return (0); 317 } 318 319 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
Cache object: 548cb3ca07f39f8992fc7aad5f58c30d
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