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/disk.h> 37 38 #include <machine/bus_memio.h> 39 #include <machine/bus_pio.h> 40 #include <machine/bus.h> 41 #include <machine/resource.h> 42 #include <sys/rman.h> 43 44 #include <pci/pcireg.h> 45 #include <pci/pcivar.h> 46 47 #include <dev/ida/idavar.h> 48 #include <dev/ida/idareg.h> 49 50 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF 51 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF 52 53 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 54 55 #define IDA_DEVICEID_SMART 0xAE100E11 56 #define IDA_DEVICEID_DEC_SMART 0x00461011 57 #define IDA_DEVICEID_NCR_53C1510 0x00101000 58 59 static int 60 ida_v3_fifo_full(struct ida_softc *ida) 61 { 62 return (ida_inl(ida, R_CMD_FIFO) == 0); 63 } 64 65 static void 66 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 67 { 68 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 69 } 70 71 static bus_addr_t 72 ida_v3_done(struct ida_softc *ida) 73 { 74 return (ida_inl(ida, R_DONE_FIFO)); 75 } 76 77 static int 78 ida_v3_int_pending(struct ida_softc *ida) 79 { 80 return (ida_inl(ida, R_INT_PENDING)); 81 } 82 83 static void 84 ida_v3_int_enable(struct ida_softc *ida, int enable) 85 { 86 if (enable) 87 ida->flags |= IDA_INTERRUPTS; 88 else 89 ida->flags &= ~IDA_INTERRUPTS; 90 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 91 } 92 93 static int 94 ida_v4_fifo_full(struct ida_softc *ida) 95 { 96 return (ida_inl(ida, R_42XX_REQUEST) != 0); 97 } 98 99 static void 100 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 101 { 102 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 103 } 104 105 static bus_addr_t 106 ida_v4_done(struct ida_softc *ida) 107 { 108 bus_addr_t completed; 109 110 completed = ida_inl(ida, R_42XX_REPLY); 111 if (completed == -1) 112 return (0); /* fifo is empty */ 113 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 114 return (completed); 115 } 116 117 static int 118 ida_v4_int_pending(struct ida_softc *ida) 119 { 120 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 121 } 122 123 static void 124 ida_v4_int_enable(struct ida_softc *ida, int enable) 125 { 126 if (enable) 127 ida->flags |= IDA_INTERRUPTS; 128 else 129 ida->flags &= ~IDA_INTERRUPTS; 130 ida_outl(ida, R_42XX_INT_MASK, 131 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 132 } 133 134 static struct ida_access ida_v3_access = { 135 ida_v3_fifo_full, 136 ida_v3_submit, 137 ida_v3_done, 138 ida_v3_int_pending, 139 ida_v3_int_enable, 140 }; 141 142 static struct ida_access ida_v4_access = { 143 ida_v4_fifo_full, 144 ida_v4_submit, 145 ida_v4_done, 146 ida_v4_int_pending, 147 ida_v4_int_enable, 148 }; 149 150 static struct ida_board board_id[] = { 151 { 0x40300E11, "Compaq SMART-2/P array controller", 152 &ida_v3_access, 0 }, 153 { 0x40310E11, "Compaq SMART-2SL array controller", 154 &ida_v3_access, 0 }, 155 { 0x40320E11, "Compaq Smart Array 3200 controller", 156 &ida_v3_access, 0 }, 157 { 0x40330E11, "Compaq Smart Array 3100ES controller", 158 &ida_v3_access, 0 }, 159 { 0x40340E11, "Compaq Smart Array 221 controller", 160 &ida_v3_access, 0 }, 161 162 { 0x40400E11, "Compaq Integrated Array controller", 163 &ida_v4_access, IDA_FIRMWARE }, 164 { 0x40480E11, "Compaq RAID LC2 controller", 165 &ida_v4_access, IDA_FIRMWARE }, 166 { 0x40500E11, "Compaq Smart Array 4200 controller", 167 &ida_v4_access, 0 }, 168 { 0x40510E11, "Compaq Smart Array 4250ES controller", 169 &ida_v4_access, 0 }, 170 { 0x40580E11, "Compaq Smart Array 431 controller", 171 &ida_v4_access, 0 }, 172 173 { 0, "", 0, 0 }, 174 }; 175 176 static int ida_pci_probe(device_t dev); 177 static int ida_pci_attach(device_t dev); 178 179 static device_method_t ida_pci_methods[] = { 180 DEVMETHOD(device_probe, ida_pci_probe), 181 DEVMETHOD(device_attach, ida_pci_attach), 182 DEVMETHOD(device_detach, ida_detach), 183 184 DEVMETHOD(bus_print_child, bus_generic_print_child), 185 186 { 0, 0 } 187 }; 188 189 static driver_t ida_pci_driver = { 190 "ida", 191 ida_pci_methods, 192 sizeof(struct ida_softc) 193 }; 194 195 static devclass_t ida_devclass; 196 197 static struct ida_board * 198 ida_pci_match(device_t dev) 199 { 200 int i; 201 u_int32_t id, sub_id; 202 203 id = pci_get_devid(dev); 204 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev); 205 206 if (id == IDA_DEVICEID_SMART || 207 id == IDA_DEVICEID_DEC_SMART || 208 id == IDA_DEVICEID_NCR_53C1510) { 209 for (i = 0; board_id[i].board; i++) 210 if (board_id[i].board == sub_id) 211 return (&board_id[i]); 212 } 213 return (NULL); 214 } 215 216 static int 217 ida_pci_probe(device_t dev) 218 { 219 struct ida_board *board = ida_pci_match(dev); 220 221 if (board != NULL) { 222 device_set_desc(dev, board->desc); 223 return (0); 224 } 225 return (ENXIO); 226 } 227 228 static int 229 ida_pci_attach(device_t dev) 230 { 231 struct ida_board *board = ida_pci_match(dev); 232 u_int32_t id = pci_get_devid(dev); 233 struct ida_softc *ida; 234 u_int command; 235 int error, rid; 236 237 command = pci_read_config(dev, PCIR_COMMAND, 1); 238 239 /* 240 * it appears that this board only does MEMIO access. 241 */ 242 if ((command & PCIM_CMD_MEMEN) == 0) { 243 device_printf(dev, "Only memory mapped I/O is supported\n"); 244 return (ENXIO); 245 } 246 247 ida = (struct ida_softc *)device_get_softc(dev); 248 ida->dev = dev; 249 ida->cmd = *board->accessor; 250 ida->flags = board->flags; 251 252 ida->regs_res_type = SYS_RES_MEMORY; 253 ida->regs_res_id = IDA_PCI_MEMADDR; 254 if (id == IDA_DEVICEID_DEC_SMART) 255 ida->regs_res_id = PCIR_MAPS; 256 257 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 258 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 259 if (ida->regs == NULL) { 260 device_printf(dev, "can't allocate memory resources\n"); 261 return (ENOMEM); 262 } 263 264 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 265 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 266 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 267 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 268 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 269 &ida->parent_dmat); 270 if (error != 0) { 271 device_printf(dev, "can't allocate DMA tag\n"); 272 ida_free(ida); 273 return (ENOMEM); 274 } 275 276 rid = 0; 277 ida->irq_res_type = SYS_RES_IRQ; 278 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 279 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 280 if (ida->irq == NULL) { 281 ida_free(ida); 282 return (ENOMEM); 283 } 284 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO, 285 ida_intr, ida, &ida->ih); 286 if (error) { 287 device_printf(dev, "can't setup interrupt\n"); 288 ida_free(ida); 289 return (ENOMEM); 290 } 291 292 error = ida_init(ida); 293 if (error) { 294 ida_free(ida); 295 return (error); 296 } 297 ida_attach(ida); 298 ida->flags |= IDA_ATTACHED; 299 300 return (0); 301 } 302 303 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 304