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("$FreeBSD$"); 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_memio.h> 40 #include <machine/bus_pio.h> 41 #include <machine/bus.h> 42 #include <machine/resource.h> 43 #include <sys/rman.h> 44 45 #include <dev/pci/pcireg.h> 46 #include <dev/pci/pcivar.h> 47 48 #include <geom/geom_disk.h> 49 50 #include <dev/ida/idavar.h> 51 #include <dev/ida/idareg.h> 52 53 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 54 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 55 56 #define IDA_PCI_MEMADDR PCIR_BAR(1) /* Mem I/O Address */ 57 58 #define IDA_DEVICEID_SMART 0xAE100E11 59 #define IDA_DEVICEID_DEC_SMART 0x00461011 60 #define IDA_DEVICEID_NCR_53C1510 0x00101000 61 62 static int 63 ida_v3_fifo_full(struct ida_softc *ida) 64 { 65 return (ida_inl(ida, R_CMD_FIFO) == 0); 66 } 67 68 static void 69 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 70 { 71 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 72 } 73 74 static bus_addr_t 75 ida_v3_done(struct ida_softc *ida) 76 { 77 bus_addr_t completed; 78 79 completed = ida_inl(ida, R_DONE_FIFO); 80 if (completed == -1) { 81 return (0); /* fifo is empty */ 82 } 83 return (completed); 84 } 85 86 static int 87 ida_v3_int_pending(struct ida_softc *ida) 88 { 89 return (ida_inl(ida, R_INT_PENDING)); 90 } 91 92 static void 93 ida_v3_int_enable(struct ida_softc *ida, int enable) 94 { 95 if (enable) 96 ida->flags |= IDA_INTERRUPTS; 97 else 98 ida->flags &= ~IDA_INTERRUPTS; 99 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 100 } 101 102 static int 103 ida_v4_fifo_full(struct ida_softc *ida) 104 { 105 return (ida_inl(ida, R_42XX_REQUEST) != 0); 106 } 107 108 static void 109 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 110 { 111 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 112 } 113 114 static bus_addr_t 115 ida_v4_done(struct ida_softc *ida) 116 { 117 bus_addr_t completed; 118 119 completed = ida_inl(ida, R_42XX_REPLY); 120 if (completed == -1) 121 return (0); /* fifo is empty */ 122 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 123 return (completed); 124 } 125 126 static int 127 ida_v4_int_pending(struct ida_softc *ida) 128 { 129 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 130 } 131 132 static void 133 ida_v4_int_enable(struct ida_softc *ida, int enable) 134 { 135 if (enable) 136 ida->flags |= IDA_INTERRUPTS; 137 else 138 ida->flags &= ~IDA_INTERRUPTS; 139 ida_outl(ida, R_42XX_INT_MASK, 140 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 141 } 142 143 static struct ida_access ida_v3_access = { 144 ida_v3_fifo_full, 145 ida_v3_submit, 146 ida_v3_done, 147 ida_v3_int_pending, 148 ida_v3_int_enable, 149 }; 150 151 static struct ida_access ida_v4_access = { 152 ida_v4_fifo_full, 153 ida_v4_submit, 154 ida_v4_done, 155 ida_v4_int_pending, 156 ida_v4_int_enable, 157 }; 158 159 static struct ida_board board_id[] = { 160 { 0x40300E11, "Compaq SMART-2/P array controller", 161 &ida_v3_access, 0 }, 162 { 0x40310E11, "Compaq SMART-2SL array controller", 163 &ida_v3_access, 0 }, 164 { 0x40320E11, "Compaq Smart Array 3200 controller", 165 &ida_v3_access, 0 }, 166 { 0x40330E11, "Compaq Smart Array 3100ES controller", 167 &ida_v3_access, 0 }, 168 { 0x40340E11, "Compaq Smart Array 221 controller", 169 &ida_v3_access, 0 }, 170 171 { 0x40400E11, "Compaq Integrated Array controller", 172 &ida_v4_access, IDA_FIRMWARE }, 173 { 0x40480E11, "Compaq RAID LC2 controller", 174 &ida_v4_access, IDA_FIRMWARE }, 175 { 0x40500E11, "Compaq Smart Array 4200 controller", 176 &ida_v4_access, 0 }, 177 { 0x40510E11, "Compaq Smart Array 4250ES controller", 178 &ida_v4_access, 0 }, 179 { 0x40580E11, "Compaq Smart Array 431 controller", 180 &ida_v4_access, 0 }, 181 182 { 0, "", 0, 0 }, 183 }; 184 185 static int ida_pci_probe(device_t dev); 186 static int ida_pci_attach(device_t dev); 187 188 static device_method_t ida_pci_methods[] = { 189 DEVMETHOD(device_probe, ida_pci_probe), 190 DEVMETHOD(device_attach, ida_pci_attach), 191 DEVMETHOD(device_detach, ida_detach), 192 193 DEVMETHOD(bus_print_child, bus_generic_print_child), 194 195 { 0, 0 } 196 }; 197 198 static driver_t ida_pci_driver = { 199 "ida", 200 ida_pci_methods, 201 sizeof(struct ida_softc) 202 }; 203 204 static devclass_t ida_devclass; 205 206 static struct ida_board * 207 ida_pci_match(device_t dev) 208 { 209 int i; 210 u_int32_t id, sub_id; 211 212 id = pci_get_devid(dev); 213 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 214 215 if (id == IDA_DEVICEID_SMART || 216 id == IDA_DEVICEID_DEC_SMART || 217 id == IDA_DEVICEID_NCR_53C1510) { 218 for (i = 0; board_id[i].board; i++) 219 if (board_id[i].board == sub_id) 220 return (&board_id[i]); 221 } 222 return (NULL); 223 } 224 225 static int 226 ida_pci_probe(device_t dev) 227 { 228 struct ida_board *board = ida_pci_match(dev); 229 230 if (board != NULL) { 231 device_set_desc(dev, board->desc); 232 return (0); 233 } 234 return (ENXIO); 235 } 236 237 static int 238 ida_pci_attach(device_t dev) 239 { 240 struct ida_board *board = ida_pci_match(dev); 241 u_int32_t id = pci_get_devid(dev); 242 struct ida_softc *ida; 243 u_int command; 244 int error, rid; 245 246 command = pci_read_config(dev, PCIR_COMMAND, 1); 247 248 /* 249 * it appears that this board only does MEMIO access. 250 */ 251 if ((command & PCIM_CMD_MEMEN) == 0) { 252 device_printf(dev, "Only memory mapped I/O is supported\n"); 253 return (ENXIO); 254 } 255 256 ida = (struct ida_softc *)device_get_softc(dev); 257 ida->dev = dev; 258 ida->cmd = *board->accessor; 259 ida->flags = board->flags; 260 261 ida->regs_res_type = SYS_RES_MEMORY; 262 ida->regs_res_id = IDA_PCI_MEMADDR; 263 if (id == IDA_DEVICEID_DEC_SMART) 264 ida->regs_res_id = PCIR_BAR(0); 265 266 ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type, 267 &ida->regs_res_id, RF_ACTIVE); 268 if (ida->regs == NULL) { 269 device_printf(dev, "can't allocate memory resources\n"); 270 return (ENOMEM); 271 } 272 273 error = bus_dma_tag_create( 274 /* parent */ NULL, 275 /* alignment */ 1, 276 /* boundary */ 0, 277 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 278 /* highaddr */ BUS_SPACE_MAXADDR, 279 /* filter */ NULL, 280 /* filterarg */ NULL, 281 /* maxsize */ MAXBSIZE, 282 /* nsegments */ IDA_NSEG, 283 /* maxsegsize */ BUS_SPACE_MAXSIZE_32BIT, 284 /* flags */ BUS_DMA_ALLOCNOW, 285 /* lockfunc */ NULL, 286 /* lockarg */ NULL, 287 &ida->parent_dmat); 288 if (error != 0) { 289 device_printf(dev, "can't allocate DMA tag\n"); 290 ida_free(ida); 291 return (ENOMEM); 292 } 293 294 rid = 0; 295 ida->irq_res_type = SYS_RES_IRQ; 296 ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid, 297 RF_ACTIVE | RF_SHAREABLE); 298 if (ida->irq == NULL) { 299 ida_free(ida); 300 return (ENOMEM); 301 } 302 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY, 303 ida_intr, ida, &ida->ih); 304 if (error) { 305 device_printf(dev, "can't setup interrupt\n"); 306 ida_free(ida); 307 return (ENOMEM); 308 } 309 310 error = ida_init(ida); 311 if (error) { 312 ida_free(ida); 313 return (error); 314 } 315 ida_attach(ida); 316 ida->flags |= IDA_ATTACHED; 317 318 return (0); 319 } 320 321 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 322