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/8.4/sys/dev/ida/ida_pci.c 233025 2012-03-16 09:22:59Z scottl $"); 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_END 192 }; 193 194 static driver_t ida_pci_driver = { 195 "ida", 196 ida_pci_methods, 197 sizeof(struct ida_softc) 198 }; 199 200 static devclass_t ida_devclass; 201 202 static struct ida_board * 203 ida_pci_match(device_t dev) 204 { 205 int i; 206 u_int32_t id, sub_id; 207 208 id = pci_get_devid(dev); 209 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 210 211 if (id == IDA_DEVICEID_SMART || 212 id == IDA_DEVICEID_DEC_SMART || 213 id == IDA_DEVICEID_NCR_53C1510) { 214 for (i = 0; board_id[i].board; i++) 215 if (board_id[i].board == sub_id) 216 return (&board_id[i]); 217 } 218 return (NULL); 219 } 220 221 static int 222 ida_pci_probe(device_t dev) 223 { 224 struct ida_board *board = ida_pci_match(dev); 225 226 if (board != NULL) { 227 device_set_desc(dev, board->desc); 228 return (BUS_PROBE_DEFAULT); 229 } 230 return (ENXIO); 231 } 232 233 static int 234 ida_pci_attach(device_t dev) 235 { 236 struct ida_board *board = ida_pci_match(dev); 237 u_int32_t id = pci_get_devid(dev); 238 struct ida_softc *ida; 239 u_int command; 240 int error, rid; 241 242 command = pci_read_config(dev, PCIR_COMMAND, 1); 243 244 /* 245 * it appears that this board only does MEMIO access. 246 */ 247 if ((command & PCIM_CMD_MEMEN) == 0) { 248 device_printf(dev, "Only memory mapped I/O is supported\n"); 249 return (ENXIO); 250 } 251 252 ida = (struct ida_softc *)device_get_softc(dev); 253 ida->dev = dev; 254 ida->cmd = *board->accessor; 255 ida->flags = board->flags; 256 257 ida->regs_res_type = SYS_RES_MEMORY; 258 ida->regs_res_id = IDA_PCI_MEMADDR; 259 if (id == IDA_DEVICEID_DEC_SMART) 260 ida->regs_res_id = PCIR_BAR(0); 261 262 ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type, 263 &ida->regs_res_id, RF_ACTIVE); 264 if (ida->regs == NULL) { 265 device_printf(dev, "can't allocate memory resources\n"); 266 return (ENOMEM); 267 } 268 269 error = bus_dma_tag_create( 270 /* parent */ bus_get_dma_tag(dev), 271 /* alignment */ 1, 272 /* boundary */ 0, 273 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 274 /* highaddr */ BUS_SPACE_MAXADDR, 275 /* filter */ NULL, 276 /* filterarg */ NULL, 277 /* maxsize */ MAXBSIZE, 278 /* nsegments */ IDA_NSEG, 279 /* maxsegsize */ BUS_SPACE_MAXSIZE_32BIT, 280 /* flags */ BUS_DMA_ALLOCNOW, 281 /* lockfunc */ NULL, 282 /* lockarg */ NULL, 283 &ida->parent_dmat); 284 if (error != 0) { 285 device_printf(dev, "can't allocate DMA tag\n"); 286 ida_free(ida); 287 return (ENOMEM); 288 } 289 290 rid = 0; 291 ida->irq_res_type = SYS_RES_IRQ; 292 ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid, 293 RF_ACTIVE | RF_SHAREABLE); 294 if (ida->irq == NULL) { 295 ida_free(ida); 296 return (ENOMEM); 297 } 298 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY, 299 NULL, ida_intr, ida, &ida->ih); 300 if (error) { 301 device_printf(dev, "can't setup interrupt\n"); 302 ida_free(ida); 303 return (ENOMEM); 304 } 305 306 error = ida_init(ida); 307 if (error) { 308 ida_free(ida); 309 return (error); 310 } 311 ida_attach(ida); 312 ida->flags |= IDA_ATTACHED; 313 314 return (0); 315 } 316 317 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
Cache object: 34caab600592b9324adc0dc1492d5502
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