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 * $DragonFly: src/sys/dev/raid/ida/ida_pci.c,v 1.6 2006/10/25 20:56:01 dillon Exp $ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/kernel.h> 34 35 #include <sys/buf.h> 36 #include <sys/bus.h> 37 #include <sys/devicestat.h> 38 #include <sys/disk.h> 39 #include <sys/rman.h> 40 41 #include <bus/pci/pcireg.h> 42 #include <bus/pci/pcivar.h> 43 44 #include "idavar.h" 45 #include "idareg.h" 46 47 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 48 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 49 50 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 51 52 #define IDA_DEVICEID_SMART 0xAE100E11 53 #define IDA_DEVICEID_DEC_SMART 0x00461011 54 #define IDA_DEVICEID_NCR_53C1510 0x00101000 55 56 static int 57 ida_v3_fifo_full(struct ida_softc *ida) 58 { 59 return (ida_inl(ida, R_CMD_FIFO) == 0); 60 } 61 62 static void 63 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 64 { 65 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 66 } 67 68 static bus_addr_t 69 ida_v3_done(struct ida_softc *ida) 70 { 71 return (ida_inl(ida, R_DONE_FIFO)); 72 } 73 74 static int 75 ida_v3_int_pending(struct ida_softc *ida) 76 { 77 return (ida_inl(ida, R_INT_PENDING)); 78 } 79 80 static void 81 ida_v3_int_enable(struct ida_softc *ida, int enable) 82 { 83 if (enable) 84 ida->flags |= IDA_INTERRUPTS; 85 else 86 ida->flags &= ~IDA_INTERRUPTS; 87 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 88 } 89 90 static int 91 ida_v4_fifo_full(struct ida_softc *ida) 92 { 93 return (ida_inl(ida, R_42XX_REQUEST) != 0); 94 } 95 96 static void 97 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 98 { 99 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 100 } 101 102 static bus_addr_t 103 ida_v4_done(struct ida_softc *ida) 104 { 105 bus_addr_t completed; 106 107 completed = ida_inl(ida, R_42XX_REPLY); 108 if (completed == -1) 109 return (0); /* fifo is empty */ 110 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 111 return (completed); 112 } 113 114 static int 115 ida_v4_int_pending(struct ida_softc *ida) 116 { 117 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 118 } 119 120 static void 121 ida_v4_int_enable(struct ida_softc *ida, int enable) 122 { 123 if (enable) 124 ida->flags |= IDA_INTERRUPTS; 125 else 126 ida->flags &= ~IDA_INTERRUPTS; 127 ida_outl(ida, R_42XX_INT_MASK, 128 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 129 } 130 131 static struct ida_access ida_v3_access = { 132 ida_v3_fifo_full, 133 ida_v3_submit, 134 ida_v3_done, 135 ida_v3_int_pending, 136 ida_v3_int_enable, 137 }; 138 139 static struct ida_access ida_v4_access = { 140 ida_v4_fifo_full, 141 ida_v4_submit, 142 ida_v4_done, 143 ida_v4_int_pending, 144 ida_v4_int_enable, 145 }; 146 147 static struct ida_board board_id[] = { 148 { 0x40300E11, "Compaq SMART-2/P array controller", 149 &ida_v3_access, 0 }, 150 { 0x40310E11, "Compaq SMART-2SL array controller", 151 &ida_v3_access, 0 }, 152 { 0x40320E11, "Compaq Smart Array 3200 controller", 153 &ida_v3_access, 0 }, 154 { 0x40330E11, "Compaq Smart Array 3100ES controller", 155 &ida_v3_access, 0 }, 156 { 0x40340E11, "Compaq Smart Array 221 controller", 157 &ida_v3_access, 0 }, 158 159 { 0x40400E11, "Compaq Integrated Array controller", 160 &ida_v4_access, IDA_FIRMWARE }, 161 { 0x40480E11, "Compaq RAID LC2 controller", 162 &ida_v4_access, IDA_FIRMWARE }, 163 { 0x40500E11, "Compaq Smart Array 4200 controller", 164 &ida_v4_access, 0 }, 165 { 0x40510E11, "Compaq Smart Array 4250ES controller", 166 &ida_v4_access, 0 }, 167 { 0x40580E11, "Compaq Smart Array 431 controller", 168 &ida_v4_access, 0 }, 169 170 { 0, "", 0, 0 }, 171 }; 172 173 static int ida_pci_probe(device_t dev); 174 static int ida_pci_attach(device_t dev); 175 176 static device_method_t ida_pci_methods[] = { 177 DEVMETHOD(device_probe, ida_pci_probe), 178 DEVMETHOD(device_attach, ida_pci_attach), 179 DEVMETHOD(device_detach, ida_detach), 180 181 DEVMETHOD(bus_print_child, bus_generic_print_child), 182 183 { 0, 0 } 184 }; 185 186 static driver_t ida_pci_driver = { 187 "ida", 188 ida_pci_methods, 189 sizeof(struct ida_softc) 190 }; 191 192 static devclass_t ida_devclass; 193 194 static struct ida_board * 195 ida_pci_match(device_t dev) 196 { 197 int i; 198 u_int32_t id, sub_id; 199 200 id = pci_get_devid(dev); 201 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 202 203 if (id == IDA_DEVICEID_SMART || 204 id == IDA_DEVICEID_DEC_SMART || 205 id == IDA_DEVICEID_NCR_53C1510) { 206 for (i = 0; board_id[i].board; i++) 207 if (board_id[i].board == sub_id) 208 return (&board_id[i]); 209 } 210 return (NULL); 211 } 212 213 static int 214 ida_pci_probe(device_t dev) 215 { 216 struct ida_board *board = ida_pci_match(dev); 217 218 if (board != NULL) { 219 device_set_desc(dev, board->desc); 220 return (0); 221 } 222 return (ENXIO); 223 } 224 225 static int 226 ida_pci_attach(device_t dev) 227 { 228 struct ida_board *board = ida_pci_match(dev); 229 u_int32_t id = pci_get_devid(dev); 230 struct ida_softc *ida; 231 u_int command; 232 int error, rid; 233 234 command = pci_read_config(dev, PCIR_COMMAND, 1); 235 236 /* 237 * it appears that this board only does MEMIO access. 238 */ 239 if ((command & PCIM_CMD_MEMEN) == 0) { 240 device_printf(dev, "Only memory mapped I/O is supported\n"); 241 return (ENXIO); 242 } 243 244 ida = (struct ida_softc *)device_get_softc(dev); 245 ida->dev = dev; 246 ida->cmd = *board->accessor; 247 ida->flags = board->flags; 248 249 ida->regs_res_type = SYS_RES_MEMORY; 250 ida->regs_res_id = IDA_PCI_MEMADDR; 251 if (id == IDA_DEVICEID_DEC_SMART) 252 ida->regs_res_id = PCIR_MAPS; 253 254 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 255 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 256 if (ida->regs == NULL) { 257 device_printf(dev, "can't allocate memory resources\n"); 258 return (ENOMEM); 259 } 260 261 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 262 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 263 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 264 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 265 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 266 &ida->parent_dmat); 267 if (error != 0) { 268 device_printf(dev, "can't allocate DMA tag\n"); 269 ida_free(ida); 270 return (ENOMEM); 271 } 272 273 rid = 0; 274 ida->irq_res_type = SYS_RES_IRQ; 275 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 276 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 277 if (ida->irq == NULL) { 278 ida_free(ida); 279 return (ENOMEM); 280 } 281 error = bus_setup_intr(dev, ida->irq, 0, 282 ida_intr, ida, &ida->ih, NULL); 283 if (error) { 284 device_printf(dev, "can't setup interrupt\n"); 285 ida_free(ida); 286 return (ENOMEM); 287 } 288 289 error = ida_init(ida); 290 if (error) { 291 ida_free(ida); 292 return (error); 293 } 294 ida_attach(ida); 295 ida->flags |= IDA_ATTACHED; 296 297 return (0); 298 } 299 300 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 301