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 1.3 2003/08/07 21:17:09 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 40 #include <machine/bus_memio.h> 41 #include <machine/bus_pio.h> 42 #include <machine/bus.h> 43 #include <machine/resource.h> 44 #include <sys/rman.h> 45 46 #include <bus/pci/pcireg.h> 47 #include <bus/pci/pcivar.h> 48 49 #include "idavar.h" 50 #include "idareg.h" 51 52 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 53 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 54 55 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 56 57 #define IDA_DEVICEID_SMART 0xAE100E11 58 #define IDA_DEVICEID_DEC_SMART 0x00461011 59 #define IDA_DEVICEID_NCR_53C1510 0x00101000 60 61 static int 62 ida_v3_fifo_full(struct ida_softc *ida) 63 { 64 return (ida_inl(ida, R_CMD_FIFO) == 0); 65 } 66 67 static void 68 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 69 { 70 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 71 } 72 73 static bus_addr_t 74 ida_v3_done(struct ida_softc *ida) 75 { 76 return (ida_inl(ida, R_DONE_FIFO)); 77 } 78 79 static int 80 ida_v3_int_pending(struct ida_softc *ida) 81 { 82 return (ida_inl(ida, R_INT_PENDING)); 83 } 84 85 static void 86 ida_v3_int_enable(struct ida_softc *ida, int enable) 87 { 88 if (enable) 89 ida->flags |= IDA_INTERRUPTS; 90 else 91 ida->flags &= ~IDA_INTERRUPTS; 92 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 93 } 94 95 static int 96 ida_v4_fifo_full(struct ida_softc *ida) 97 { 98 return (ida_inl(ida, R_42XX_REQUEST) != 0); 99 } 100 101 static void 102 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 103 { 104 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 105 } 106 107 static bus_addr_t 108 ida_v4_done(struct ida_softc *ida) 109 { 110 bus_addr_t completed; 111 112 completed = ida_inl(ida, R_42XX_REPLY); 113 if (completed == -1) 114 return (0); /* fifo is empty */ 115 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 116 return (completed); 117 } 118 119 static int 120 ida_v4_int_pending(struct ida_softc *ida) 121 { 122 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 123 } 124 125 static void 126 ida_v4_int_enable(struct ida_softc *ida, int enable) 127 { 128 if (enable) 129 ida->flags |= IDA_INTERRUPTS; 130 else 131 ida->flags &= ~IDA_INTERRUPTS; 132 ida_outl(ida, R_42XX_INT_MASK, 133 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 134 } 135 136 static struct ida_access ida_v3_access = { 137 ida_v3_fifo_full, 138 ida_v3_submit, 139 ida_v3_done, 140 ida_v3_int_pending, 141 ida_v3_int_enable, 142 }; 143 144 static struct ida_access ida_v4_access = { 145 ida_v4_fifo_full, 146 ida_v4_submit, 147 ida_v4_done, 148 ida_v4_int_pending, 149 ida_v4_int_enable, 150 }; 151 152 static struct ida_board board_id[] = { 153 { 0x40300E11, "Compaq SMART-2/P array controller", 154 &ida_v3_access, 0 }, 155 { 0x40310E11, "Compaq SMART-2SL array controller", 156 &ida_v3_access, 0 }, 157 { 0x40320E11, "Compaq Smart Array 3200 controller", 158 &ida_v3_access, 0 }, 159 { 0x40330E11, "Compaq Smart Array 3100ES controller", 160 &ida_v3_access, 0 }, 161 { 0x40340E11, "Compaq Smart Array 221 controller", 162 &ida_v3_access, 0 }, 163 164 { 0x40400E11, "Compaq Integrated Array controller", 165 &ida_v4_access, IDA_FIRMWARE }, 166 { 0x40480E11, "Compaq RAID LC2 controller", 167 &ida_v4_access, IDA_FIRMWARE }, 168 { 0x40500E11, "Compaq Smart Array 4200 controller", 169 &ida_v4_access, 0 }, 170 { 0x40510E11, "Compaq Smart Array 4250ES controller", 171 &ida_v4_access, 0 }, 172 { 0x40580E11, "Compaq Smart Array 431 controller", 173 &ida_v4_access, 0 }, 174 175 { 0, "", 0, 0 }, 176 }; 177 178 static int ida_pci_probe(device_t dev); 179 static int ida_pci_attach(device_t dev); 180 181 static device_method_t ida_pci_methods[] = { 182 DEVMETHOD(device_probe, ida_pci_probe), 183 DEVMETHOD(device_attach, ida_pci_attach), 184 DEVMETHOD(device_detach, ida_detach), 185 186 DEVMETHOD(bus_print_child, bus_generic_print_child), 187 188 { 0, 0 } 189 }; 190 191 static driver_t ida_pci_driver = { 192 "ida", 193 ida_pci_methods, 194 sizeof(struct ida_softc) 195 }; 196 197 static devclass_t ida_devclass; 198 199 static struct ida_board * 200 ida_pci_match(device_t dev) 201 { 202 int i; 203 u_int32_t id, sub_id; 204 205 id = pci_get_devid(dev); 206 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 207 208 if (id == IDA_DEVICEID_SMART || 209 id == IDA_DEVICEID_DEC_SMART || 210 id == IDA_DEVICEID_NCR_53C1510) { 211 for (i = 0; board_id[i].board; i++) 212 if (board_id[i].board == sub_id) 213 return (&board_id[i]); 214 } 215 return (NULL); 216 } 217 218 static int 219 ida_pci_probe(device_t dev) 220 { 221 struct ida_board *board = ida_pci_match(dev); 222 223 if (board != NULL) { 224 device_set_desc(dev, board->desc); 225 return (0); 226 } 227 return (ENXIO); 228 } 229 230 static int 231 ida_pci_attach(device_t dev) 232 { 233 struct ida_board *board = ida_pci_match(dev); 234 u_int32_t id = pci_get_devid(dev); 235 struct ida_softc *ida; 236 u_int command; 237 int error, rid; 238 239 command = pci_read_config(dev, PCIR_COMMAND, 1); 240 241 /* 242 * it appears that this board only does MEMIO access. 243 */ 244 if ((command & PCIM_CMD_MEMEN) == 0) { 245 device_printf(dev, "Only memory mapped I/O is supported\n"); 246 return (ENXIO); 247 } 248 249 ida = (struct ida_softc *)device_get_softc(dev); 250 ida->dev = dev; 251 ida->cmd = *board->accessor; 252 ida->flags = board->flags; 253 254 ida->regs_res_type = SYS_RES_MEMORY; 255 ida->regs_res_id = IDA_PCI_MEMADDR; 256 if (id == IDA_DEVICEID_DEC_SMART) 257 ida->regs_res_id = PCIR_MAPS; 258 259 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 260 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 261 if (ida->regs == NULL) { 262 device_printf(dev, "can't allocate memory resources\n"); 263 return (ENOMEM); 264 } 265 266 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 267 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 268 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 269 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 270 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 271 &ida->parent_dmat); 272 if (error != 0) { 273 device_printf(dev, "can't allocate DMA tag\n"); 274 ida_free(ida); 275 return (ENOMEM); 276 } 277 278 rid = 0; 279 ida->irq_res_type = SYS_RES_IRQ; 280 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 281 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 282 if (ida->irq == NULL) { 283 ida_free(ida); 284 return (ENOMEM); 285 } 286 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO, 287 ida_intr, ida, &ida->ih); 288 if (error) { 289 device_printf(dev, "can't setup interrupt\n"); 290 ida_free(ida); 291 return (ENOMEM); 292 } 293 294 error = ida_init(ida); 295 if (error) { 296 ida_free(ida); 297 return (error); 298 } 299 ida_attach(ida); 300 ida->flags |= IDA_ATTACHED; 301 302 return (0); 303 } 304 305 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 306