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 * $FreeBSD: src/sys/dev/ida/ida_pci.c,v 1.7.2.7 2001/07/30 20:29:58 jlemon Exp $ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/malloc.h> 32 #include <sys/kernel.h> 33 34 #include <sys/buf.h> 35 #include <sys/bus.h> 36 #include <sys/devicestat.h> 37 #include <sys/disk.h> 38 #include <sys/rman.h> 39 40 #include <bus/pci/pcireg.h> 41 #include <bus/pci/pcivar.h> 42 43 #include "idavar.h" 44 #include "idareg.h" 45 46 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 47 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 48 49 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 50 51 #define IDA_DEVICEID_SMART 0xAE100E11 52 #define IDA_DEVICEID_DEC_SMART 0x00461011 53 #define IDA_DEVICEID_NCR_53C1510 0x00101000 54 55 static int 56 ida_v3_fifo_full(struct ida_softc *ida) 57 { 58 return (ida_inl(ida, R_CMD_FIFO) == 0); 59 } 60 61 static void 62 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 63 { 64 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 65 } 66 67 static bus_addr_t 68 ida_v3_done(struct ida_softc *ida) 69 { 70 return (ida_inl(ida, R_DONE_FIFO)); 71 } 72 73 static int 74 ida_v3_int_pending(struct ida_softc *ida) 75 { 76 return (ida_inl(ida, R_INT_PENDING)); 77 } 78 79 static void 80 ida_v3_int_enable(struct ida_softc *ida, int enable) 81 { 82 if (enable) 83 ida->flags |= IDA_INTERRUPTS; 84 else 85 ida->flags &= ~IDA_INTERRUPTS; 86 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 87 } 88 89 static int 90 ida_v4_fifo_full(struct ida_softc *ida) 91 { 92 return (ida_inl(ida, R_42XX_REQUEST) != 0); 93 } 94 95 static void 96 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 97 { 98 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 99 } 100 101 static bus_addr_t 102 ida_v4_done(struct ida_softc *ida) 103 { 104 bus_addr_t completed; 105 106 completed = ida_inl(ida, R_42XX_REPLY); 107 if (completed == -1) 108 return (0); /* fifo is empty */ 109 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 110 return (completed); 111 } 112 113 static int 114 ida_v4_int_pending(struct ida_softc *ida) 115 { 116 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 117 } 118 119 static void 120 ida_v4_int_enable(struct ida_softc *ida, int enable) 121 { 122 if (enable) 123 ida->flags |= IDA_INTERRUPTS; 124 else 125 ida->flags &= ~IDA_INTERRUPTS; 126 ida_outl(ida, R_42XX_INT_MASK, 127 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 128 } 129 130 static struct ida_access ida_v3_access = { 131 ida_v3_fifo_full, 132 ida_v3_submit, 133 ida_v3_done, 134 ida_v3_int_pending, 135 ida_v3_int_enable, 136 }; 137 138 static struct ida_access ida_v4_access = { 139 ida_v4_fifo_full, 140 ida_v4_submit, 141 ida_v4_done, 142 ida_v4_int_pending, 143 ida_v4_int_enable, 144 }; 145 146 static struct ida_board board_id[] = { 147 { 0x40300E11, "Compaq SMART-2/P array controller", 148 &ida_v3_access, 0 }, 149 { 0x40310E11, "Compaq SMART-2SL array controller", 150 &ida_v3_access, 0 }, 151 { 0x40320E11, "Compaq Smart Array 3200 controller", 152 &ida_v3_access, 0 }, 153 { 0x40330E11, "Compaq Smart Array 3100ES controller", 154 &ida_v3_access, 0 }, 155 { 0x40340E11, "Compaq Smart Array 221 controller", 156 &ida_v3_access, 0 }, 157 158 { 0x40400E11, "Compaq Integrated Array controller", 159 &ida_v4_access, IDA_FIRMWARE }, 160 { 0x40480E11, "Compaq RAID LC2 controller", 161 &ida_v4_access, IDA_FIRMWARE }, 162 { 0x40500E11, "Compaq Smart Array 4200 controller", 163 &ida_v4_access, 0 }, 164 { 0x40510E11, "Compaq Smart Array 4250ES controller", 165 &ida_v4_access, 0 }, 166 { 0x40580E11, "Compaq Smart Array 431 controller", 167 &ida_v4_access, 0 }, 168 169 { 0, "", 0, 0 }, 170 }; 171 172 static int ida_pci_probe(device_t dev); 173 static int ida_pci_attach(device_t dev); 174 175 static device_method_t ida_pci_methods[] = { 176 DEVMETHOD(device_probe, ida_pci_probe), 177 DEVMETHOD(device_attach, ida_pci_attach), 178 DEVMETHOD(device_detach, ida_detach), 179 180 DEVMETHOD(bus_print_child, bus_generic_print_child), 181 182 DEVMETHOD_END 183 }; 184 185 static driver_t ida_pci_driver = { 186 "ida", 187 ida_pci_methods, 188 sizeof(struct ida_softc) 189 }; 190 191 static devclass_t ida_devclass; 192 193 static struct ida_board * 194 ida_pci_match(device_t dev) 195 { 196 int i; 197 u_int32_t id, sub_id; 198 199 id = pci_get_devid(dev); 200 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 201 202 if (id == IDA_DEVICEID_SMART || 203 id == IDA_DEVICEID_DEC_SMART || 204 id == IDA_DEVICEID_NCR_53C1510) { 205 for (i = 0; board_id[i].board; i++) 206 if (board_id[i].board == sub_id) 207 return (&board_id[i]); 208 } 209 return (NULL); 210 } 211 212 static int 213 ida_pci_probe(device_t dev) 214 { 215 struct ida_board *board = ida_pci_match(dev); 216 217 if (board != NULL) { 218 device_set_desc(dev, board->desc); 219 return (0); 220 } 221 return (ENXIO); 222 } 223 224 static int 225 ida_pci_attach(device_t dev) 226 { 227 struct ida_board *board = ida_pci_match(dev); 228 u_int32_t id = pci_get_devid(dev); 229 struct ida_softc *ida; 230 u_int command; 231 int error, rid; 232 233 command = pci_read_config(dev, PCIR_COMMAND, 1); 234 235 /* 236 * it appears that this board only does MEMIO access. 237 */ 238 if ((command & PCIM_CMD_MEMEN) == 0) { 239 device_printf(dev, "Only memory mapped I/O is supported\n"); 240 return (ENXIO); 241 } 242 243 ida = (struct ida_softc *)device_get_softc(dev); 244 ida->dev = dev; 245 ida->cmd = *board->accessor; 246 ida->flags = board->flags; 247 248 ida->regs_res_type = SYS_RES_MEMORY; 249 ida->regs_res_id = IDA_PCI_MEMADDR; 250 if (id == IDA_DEVICEID_DEC_SMART) 251 ida->regs_res_id = PCIR_MAPS; 252 253 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 254 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 255 if (ida->regs == NULL) { 256 device_printf(dev, "can't allocate memory resources\n"); 257 return (ENOMEM); 258 } 259 260 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 261 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 262 /*highaddr*/BUS_SPACE_MAXADDR, 263 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 264 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 265 &ida->parent_dmat); 266 if (error != 0) { 267 device_printf(dev, "can't allocate DMA tag\n"); 268 ida_free(ida); 269 return (ENOMEM); 270 } 271 272 rid = 0; 273 ida->irq_res_type = SYS_RES_IRQ; 274 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 275 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 276 if (ida->irq == NULL) { 277 ida_free(ida); 278 return (ENOMEM); 279 } 280 error = bus_setup_intr(dev, ida->irq, 0, 281 ida_intr, ida, &ida->ih, NULL); 282 if (error) { 283 device_printf(dev, "can't setup interrupt\n"); 284 ida_free(ida); 285 return (ENOMEM); 286 } 287 288 error = ida_init(ida); 289 if (error) { 290 ida_free(ida); 291 return (error); 292 } 293 ida_attach(ida); 294 ida->flags |= IDA_ATTACHED; 295 296 return (0); 297 } 298 299 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, NULL, NULL); 300