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
Version:
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999,2000 Jonathan Lemon 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 37 #include <sys/bio.h> 38 #include <sys/bus.h> 39 #include <sys/conf.h> 40 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 43 #include <machine/bus.h> 44 #include <machine/resource.h> 45 #include <sys/rman.h> 46 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcivar.h> 49 50 #include <geom/geom_disk.h> 51 52 #include <dev/ida/idavar.h> 53 #include <dev/ida/idareg.h> 54 55 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 56 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 57 58 #define IDA_PCI_MEMADDR PCIR_BAR(1) /* Mem I/O Address */ 59 60 #define IDA_DEVICEID_SMART 0xAE100E11 61 #define IDA_DEVICEID_DEC_SMART 0x00461011 62 #define IDA_DEVICEID_NCR_53C1510 0x00101000 63 64 static int 65 ida_v3_fifo_full(struct ida_softc *ida) 66 { 67 return (ida_inl(ida, R_CMD_FIFO) == 0); 68 } 69 70 static void 71 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 72 { 73 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 74 } 75 76 static bus_addr_t 77 ida_v3_done(struct ida_softc *ida) 78 { 79 bus_addr_t completed; 80 81 completed = ida_inl(ida, R_DONE_FIFO); 82 if (completed == -1) { 83 return (0); /* fifo is empty */ 84 } 85 return (completed); 86 } 87 88 static int 89 ida_v3_int_pending(struct ida_softc *ida) 90 { 91 return (ida_inl(ida, R_INT_PENDING)); 92 } 93 94 static void 95 ida_v3_int_enable(struct ida_softc *ida, int enable) 96 { 97 if (enable) 98 ida->flags |= IDA_INTERRUPTS; 99 else 100 ida->flags &= ~IDA_INTERRUPTS; 101 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 102 } 103 104 static int 105 ida_v4_fifo_full(struct ida_softc *ida) 106 { 107 return (ida_inl(ida, R_42XX_REQUEST) != 0); 108 } 109 110 static void 111 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 112 { 113 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 114 } 115 116 static bus_addr_t 117 ida_v4_done(struct ida_softc *ida) 118 { 119 bus_addr_t completed; 120 121 completed = ida_inl(ida, R_42XX_REPLY); 122 if (completed == -1) 123 return (0); /* fifo is empty */ 124 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 125 return (completed); 126 } 127 128 static int 129 ida_v4_int_pending(struct ida_softc *ida) 130 { 131 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 132 } 133 134 static void 135 ida_v4_int_enable(struct ida_softc *ida, int enable) 136 { 137 if (enable) 138 ida->flags |= IDA_INTERRUPTS; 139 else 140 ida->flags &= ~IDA_INTERRUPTS; 141 ida_outl(ida, R_42XX_INT_MASK, 142 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 143 } 144 145 static struct ida_access ida_v3_access = { 146 ida_v3_fifo_full, 147 ida_v3_submit, 148 ida_v3_done, 149 ida_v3_int_pending, 150 ida_v3_int_enable, 151 }; 152 153 static struct ida_access ida_v4_access = { 154 ida_v4_fifo_full, 155 ida_v4_submit, 156 ida_v4_done, 157 ida_v4_int_pending, 158 ida_v4_int_enable, 159 }; 160 161 static struct ida_board board_id[] = { 162 { 0x40300E11, "Compaq SMART-2/P array controller", 163 &ida_v3_access, 0 }, 164 { 0x40310E11, "Compaq SMART-2SL array controller", 165 &ida_v3_access, 0 }, 166 { 0x40320E11, "Compaq Smart Array 3200 controller", 167 &ida_v3_access, 0 }, 168 { 0x40330E11, "Compaq Smart Array 3100ES controller", 169 &ida_v3_access, 0 }, 170 { 0x40340E11, "Compaq Smart Array 221 controller", 171 &ida_v3_access, 0 }, 172 173 { 0x40400E11, "Compaq Integrated Array controller", 174 &ida_v4_access, IDA_FIRMWARE }, 175 { 0x40480E11, "Compaq RAID LC2 controller", 176 &ida_v4_access, IDA_FIRMWARE }, 177 { 0x40500E11, "Compaq Smart Array 4200 controller", 178 &ida_v4_access, 0 }, 179 { 0x40510E11, "Compaq Smart Array 4250ES controller", 180 &ida_v4_access, 0 }, 181 { 0x40580E11, "Compaq Smart Array 431 controller", 182 &ida_v4_access, 0 }, 183 184 { 0, "", 0, 0 }, 185 }; 186 187 static int ida_pci_probe(device_t dev); 188 static int ida_pci_attach(device_t dev); 189 190 static device_method_t ida_pci_methods[] = { 191 DEVMETHOD(device_probe, ida_pci_probe), 192 DEVMETHOD(device_attach, ida_pci_attach), 193 DEVMETHOD(device_detach, ida_detach), 194 195 DEVMETHOD_END 196 }; 197 198 static driver_t ida_pci_driver = { 199 "ida", 200 ida_pci_methods, 201 sizeof(struct ida_softc) 202 }; 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 int error, rid; 242 243 ida = (struct ida_softc *)device_get_softc(dev); 244 ida->dev = dev; 245 ida->cmd = *board->accessor; 246 ida->flags = board->flags; 247 mtx_init(&ida->lock, "ida", NULL, MTX_DEF); 248 callout_init_mtx(&ida->ch, &ida->lock, 0); 249 250 ida->regs_res_type = SYS_RES_MEMORY; 251 ida->regs_res_id = IDA_PCI_MEMADDR; 252 if (id == IDA_DEVICEID_DEC_SMART) 253 ida->regs_res_id = PCIR_BAR(0); 254 255 ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type, 256 &ida->regs_res_id, RF_ACTIVE); 257 if (ida->regs == NULL) { 258 device_printf(dev, "can't allocate memory resources\n"); 259 return (ENOMEM); 260 } 261 262 error = bus_dma_tag_create( 263 /* parent */ bus_get_dma_tag(dev), 264 /* alignment */ 1, 265 /* boundary */ 0, 266 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 267 /* highaddr */ BUS_SPACE_MAXADDR, 268 /* filter */ NULL, 269 /* filterarg */ NULL, 270 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 271 /* nsegments */ BUS_SPACE_UNRESTRICTED, 272 /* maxsegsize */ BUS_SPACE_MAXSIZE_32BIT, 273 /* flags */ BUS_DMA_ALLOCNOW, 274 /* lockfunc */ NULL, 275 /* lockarg */ NULL, 276 &ida->parent_dmat); 277 if (error != 0) { 278 device_printf(dev, "can't allocate DMA tag\n"); 279 ida_free(ida); 280 return (ENOMEM); 281 } 282 283 rid = 0; 284 ida->irq_res_type = SYS_RES_IRQ; 285 ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid, 286 RF_ACTIVE | RF_SHAREABLE); 287 if (ida->irq == NULL) { 288 ida_free(ida); 289 return (ENOMEM); 290 } 291 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY | INTR_MPSAFE, 292 NULL, ida_intr, ida, &ida->ih); 293 if (error) { 294 device_printf(dev, "can't setup interrupt\n"); 295 ida_free(ida); 296 return (ENOMEM); 297 } 298 299 error = ida_setup(ida); 300 if (error) { 301 ida_free(ida); 302 return (error); 303 } 304 305 return (0); 306 } 307 308 DRIVER_MODULE(ida, pci, ida_pci_driver, 0, 0); 309 MODULE_PNP_INFO("W32:vendor/device;D:#", pci, ida, board_id, 310 nitems(board_id) - 1);
Cache object: 07c1947e4260ab11f4313cf1c69aa20d
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