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/buf.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 57 static int 58 ida_v3_fifo_full(struct ida_softc *ida) 59 { 60 return (ida_inl(ida, R_CMD_FIFO) == 0); 61 } 62 63 static void 64 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb) 65 { 66 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr); 67 } 68 69 static bus_addr_t 70 ida_v3_done(struct ida_softc *ida) 71 { 72 return (ida_inl(ida, R_DONE_FIFO)); 73 } 74 75 static int 76 ida_v3_int_pending(struct ida_softc *ida) 77 { 78 return (ida_inl(ida, R_INT_PENDING)); 79 } 80 81 static void 82 ida_v3_int_enable(struct ida_softc *ida, int enable) 83 { 84 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE); 85 } 86 87 static int 88 ida_v4_fifo_full(struct ida_softc *ida) 89 { 90 return (ida_inl(ida, R_42XX_REQUEST) != 0); 91 } 92 93 static void 94 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb) 95 { 96 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr); 97 } 98 99 static bus_addr_t 100 ida_v4_done(struct ida_softc *ida) 101 { 102 bus_addr_t completed; 103 104 completed = ida_inl(ida, R_42XX_REPLY); 105 if (completed == -1) 106 return (0); /* fifo is empty */ 107 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */ 108 return (completed); 109 } 110 111 static int 112 ida_v4_int_pending(struct ida_softc *ida) 113 { 114 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING); 115 } 116 117 static void 118 ida_v4_int_enable(struct ida_softc *ida, int enable) 119 { 120 ida_outl(ida, R_42XX_INT_MASK, 121 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX); 122 } 123 124 static struct ida_access ida_v3_access = { 125 ida_v3_fifo_full, 126 ida_v3_submit, 127 ida_v3_done, 128 ida_v3_int_pending, 129 ida_v3_int_enable, 130 }; 131 132 static struct ida_access ida_v4_access = { 133 ida_v4_fifo_full, 134 ida_v4_submit, 135 ida_v4_done, 136 ida_v4_int_pending, 137 ida_v4_int_enable, 138 }; 139 140 static struct ida_board board_id[] = { 141 { 0x4030, "Compaq SMART-2/P array controller", &ida_v3_access }, 142 { 0x4031, "Compaq SMART-2SL array controller", &ida_v3_access }, 143 { 0x4032, "Compaq Smart Array 3200 controller", &ida_v3_access }, 144 { 0x4033, "Compaq Smart Array 3100ES controller", &ida_v3_access }, 145 { 0x4034, "Compaq Smart Array 221 controller", &ida_v3_access }, 146 147 { 0x4040, "Compaq Integrated Array controller", &ida_v4_access }, 148 { 0x4050, "Compaq Smart Array 4200 controller", &ida_v4_access }, 149 { 0x4051, "Compaq Smart Array 4250ES controller", &ida_v4_access }, 150 151 { 0, "", 0 }, 152 }; 153 154 static int ida_pci_probe(device_t dev); 155 static int ida_pci_attach(device_t dev); 156 157 static device_method_t ida_pci_methods[] = { 158 DEVMETHOD(device_probe, ida_pci_probe), 159 DEVMETHOD(device_attach, ida_pci_attach), 160 DEVMETHOD(device_detach, ida_detach), 161 162 DEVMETHOD(bus_print_child, bus_generic_print_child), 163 164 { 0, 0 } 165 }; 166 167 static driver_t ida_pci_driver = { 168 "ida", 169 ida_pci_methods, 170 sizeof(struct ida_softc) 171 }; 172 173 static devclass_t ida_devclass; 174 175 static struct ida_board * 176 ida_pci_match(u_int32_t id) 177 { 178 int i; 179 180 for (i = 0; board_id[i].board; i++) 181 if (board_id[i].board == id) 182 return (&board_id[i]); 183 return (NULL); 184 } 185 186 static int 187 ida_pci_probe(device_t dev) 188 { 189 struct ida_board *board; 190 191 if (pci_get_devid(dev) == IDA_DEVICEID_SMART) { 192 board = ida_pci_match(pci_get_subdevice(dev)); 193 if (board != NULL) { 194 device_set_desc(dev, board->desc); 195 return (0); 196 } 197 } 198 return (ENXIO); 199 } 200 201 static int 202 ida_pci_attach(device_t dev) 203 { 204 struct ida_board *board; 205 struct ida_softc *ida; 206 u_int command; 207 int error, rid; 208 209 command = pci_read_config(dev, PCIR_COMMAND, 1); 210 211 /* 212 * it appears that this board only does MEMIO access. 213 */ 214 if ((command & PCIM_CMD_MEMEN) == 0) { 215 device_printf(dev, "Only memory mapped I/O is supported\n"); 216 return (ENXIO); 217 } 218 219 ida = (struct ida_softc *)device_get_softc(dev); 220 ida->dev = dev; 221 222 board = ida_pci_match(pci_get_subdevice(dev)); 223 ida->cmd = *board->accessor; 224 225 ida->regs_res_type = SYS_RES_MEMORY; 226 ida->regs_res_id = IDA_PCI_MEMADDR; 227 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 228 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 229 if (ida->regs == NULL) { 230 device_printf(dev, "can't allocate register resources\n"); 231 return (ENOMEM); 232 } 233 234 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 235 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 236 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 237 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 238 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 239 &ida->parent_dmat); 240 if (error != 0) { 241 device_printf(dev, "can't allocate DMA tag\n"); 242 ida_free(ida); 243 return (ENOMEM); 244 } 245 246 rid = 0; 247 ida->irq_res_type = SYS_RES_IRQ; 248 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 249 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 250 if (ida->irq == NULL) { 251 ida_free(ida); 252 return (ENOMEM); 253 } 254 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO, 255 ida_intr, ida, &ida->ih); 256 if (error) { 257 device_printf(dev, "can't setup interrupt\n"); 258 ida_free(ida); 259 return (ENOMEM); 260 } 261 262 error = ida_init(ida); 263 if (error) { 264 ida_free(ida); 265 return (error); 266 } 267 ida_attach(ida); 268 ida->flags = IDA_ATTACHED; 269 270 return (0); 271 } 272 273 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 274