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