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 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 33 #include <sys/bio.h> 34 #include <sys/bus.h> 35 #include <sys/devicestat.h> 36 #include <sys/conf.h> 37 #include <sys/disk.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 <pci/pcireg.h> 46 #include <pci/pcivar.h> 47 48 #include <dev/ida/idavar.h> 49 #include <dev/ida/idareg.h> 50 51 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 52 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 53 54 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 55 56 #define IDA_DEVICEID_SMART 0xAE100E11 57 #define IDA_DEVICEID_DEC_SMART 0x00461011 58 #define IDA_DEVICEID_NCR_53C1510 0x00101000 59 60 static int 61 ida_v3_fifo_full(struct ida_softc *ida) 62 { 63 return (ida_inl(ida, R_CMD_FIFO) == 0); 64 } 65 66 static void 67 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 68 { 69 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 70 } 71 72 static bus_addr_t 73 ida_v3_done(struct ida_softc *ida) 74 { 75 return (ida_inl(ida, R_DONE_FIFO)); 76 } 77 78 static int 79 ida_v3_int_pending(struct ida_softc *ida) 80 { 81 return (ida_inl(ida, R_INT_PENDING)); 82 } 83 84 static void 85 ida_v3_int_enable(struct ida_softc *ida, int enable) 86 { 87 if (enable) 88 ida->flags |= IDA_INTERRUPTS; 89 else 90 ida->flags &= ~IDA_INTERRUPTS; 91 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 92 } 93 94 static int 95 ida_v4_fifo_full(struct ida_softc *ida) 96 { 97 return (ida_inl(ida, R_42XX_REQUEST) != 0); 98 } 99 100 static void 101 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 102 { 103 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 104 } 105 106 static bus_addr_t 107 ida_v4_done(struct ida_softc *ida) 108 { 109 bus_addr_t completed; 110 111 completed = ida_inl(ida, R_42XX_REPLY); 112 if (completed == -1) 113 return (0); /* fifo is empty */ 114 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 115 return (completed); 116 } 117 118 static int 119 ida_v4_int_pending(struct ida_softc *ida) 120 { 121 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 122 } 123 124 static void 125 ida_v4_int_enable(struct ida_softc *ida, int enable) 126 { 127 if (enable) 128 ida->flags |= IDA_INTERRUPTS; 129 else 130 ida->flags &= ~IDA_INTERRUPTS; 131 ida_outl(ida, R_42XX_INT_MASK, 132 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 133 } 134 135 static struct ida_access ida_v3_access = { 136 ida_v3_fifo_full, 137 ida_v3_submit, 138 ida_v3_done, 139 ida_v3_int_pending, 140 ida_v3_int_enable, 141 }; 142 143 static struct ida_access ida_v4_access = { 144 ida_v4_fifo_full, 145 ida_v4_submit, 146 ida_v4_done, 147 ida_v4_int_pending, 148 ida_v4_int_enable, 149 }; 150 151 static struct ida_board board_id[] = { 152 { 0x40300E11, "Compaq SMART-2/P array controller", 153 &ida_v3_access, 0 }, 154 { 0x40310E11, "Compaq SMART-2SL array controller", 155 &ida_v3_access, 0 }, 156 { 0x40320E11, "Compaq Smart Array 3200 controller", 157 &ida_v3_access, 0 }, 158 { 0x40330E11, "Compaq Smart Array 3100ES controller", 159 &ida_v3_access, 0 }, 160 { 0x40340E11, "Compaq Smart Array 221 controller", 161 &ida_v3_access, 0 }, 162 163 { 0x40400E11, "Compaq Integrated Array controller", 164 &ida_v4_access, IDA_FIRMWARE }, 165 { 0x40480E11, "Compaq RAID LC2 controller", 166 &ida_v4_access, IDA_FIRMWARE }, 167 { 0x40500E11, "Compaq Smart Array 4200 controller", 168 &ida_v4_access, 0 }, 169 { 0x40510E11, "Compaq Smart Array 4250ES controller", 170 &ida_v4_access, 0 }, 171 { 0x40580E11, "Compaq Smart Array 431 controller", 172 &ida_v4_access, 0 }, 173 174 { 0, "", 0, 0 }, 175 }; 176 177 static int ida_pci_probe(device_t dev); 178 static int ida_pci_attach(device_t dev); 179 180 static device_method_t ida_pci_methods[] = { 181 DEVMETHOD(device_probe, ida_pci_probe), 182 DEVMETHOD(device_attach, ida_pci_attach), 183 DEVMETHOD(device_detach, ida_detach), 184 185 DEVMETHOD(bus_print_child, bus_generic_print_child), 186 187 { 0, 0 } 188 }; 189 190 static driver_t ida_pci_driver = { 191 "ida", 192 ida_pci_methods, 193 sizeof(struct ida_softc) 194 }; 195 196 static devclass_t ida_devclass; 197 198 static struct ida_board * 199 ida_pci_match(device_t dev) 200 { 201 int i; 202 u_int32_t id, sub_id; 203 204 id = pci_get_devid(dev); 205 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 206 207 if (id == IDA_DEVICEID_SMART || 208 id == IDA_DEVICEID_DEC_SMART || 209 id == IDA_DEVICEID_NCR_53C1510) { 210 for (i = 0; board_id[i].board; i++) 211 if (board_id[i].board == sub_id) 212 return (&board_id[i]); 213 } 214 return (NULL); 215 } 216 217 static int 218 ida_pci_probe(device_t dev) 219 { 220 struct ida_board *board = ida_pci_match(dev); 221 222 if (board != NULL) { 223 device_set_desc(dev, board->desc); 224 return (0); 225 } 226 return (ENXIO); 227 } 228 229 static int 230 ida_pci_attach(device_t dev) 231 { 232 struct ida_board *board = ida_pci_match(dev); 233 u_int32_t id = pci_get_devid(dev); 234 struct ida_softc *ida; 235 u_int command; 236 int error, rid; 237 238 command = pci_read_config(dev, PCIR_COMMAND, 1); 239 240 /* 241 * it appears that this board only does MEMIO access. 242 */ 243 if ((command & PCIM_CMD_MEMEN) == 0) { 244 device_printf(dev, "Only memory mapped I/O is supported\n"); 245 return (ENXIO); 246 } 247 248 ida = (struct ida_softc *)device_get_softc(dev); 249 ida->dev = dev; 250 ida->cmd = *board->accessor; 251 ida->flags = board->flags; 252 253 ida->regs_res_type = SYS_RES_MEMORY; 254 ida->regs_res_id = IDA_PCI_MEMADDR; 255 if (id == IDA_DEVICEID_DEC_SMART) 256 ida->regs_res_id = PCIR_MAPS; 257 258 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 259 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 260 if (ida->regs == NULL) { 261 device_printf(dev, "can't allocate memory resources\n"); 262 return (ENOMEM); 263 } 264 265 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 266 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 267 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 268 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 269 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 270 &ida->parent_dmat); 271 if (error != 0) { 272 device_printf(dev, "can't allocate DMA tag\n"); 273 ida_free(ida); 274 return (ENOMEM); 275 } 276 277 rid = 0; 278 ida->irq_res_type = SYS_RES_IRQ; 279 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 280 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 281 if (ida->irq == NULL) { 282 ida_free(ida); 283 return (ENOMEM); 284 } 285 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY, 286 ida_intr, ida, &ida->ih); 287 if (error) { 288 device_printf(dev, "can't setup interrupt\n"); 289 ida_free(ida); 290 return (ENOMEM); 291 } 292 293 error = ida_init(ida); 294 if (error) { 295 ida_free(ida); 296 return (error); 297 } 298 ida_attach(ida); 299 ida->flags |= IDA_ATTACHED; 300 301 return (0); 302 } 303 304 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 305