1 /*- 2 * Copyright (c) 1999 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/malloc.h> 32 #include <sys/kernel.h> 33 34 #include <sys/buf.h> 35 #include <sys/bus.h> 36 #include <sys/device.h> 37 #include <sys/devicestat.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 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 struct { 58 u_long board; 59 char *desc; 60 } board_id[] = { 61 { 0x4030, "Compaq SMART-2/P array controller" }, 62 { 0x4031, "Compaq SMART-2SL array controller" }, 63 { 0x4032, "Compaq Smart Array 3200 controller" }, 64 { 0x4033, "Compaq Smart Array 3100ES controller" }, 65 { 0x4034, "Compaq Smart Array 221 controller" }, 66 67 { 0, "" }, 68 }; 69 70 static int ida_pci_probe(device_t dev); 71 static int ida_pci_attach(device_t dev); 72 73 static device_method_t ida_pci_methods[] = { 74 DEVMETHOD(device_probe, ida_pci_probe), 75 DEVMETHOD(device_attach, ida_pci_attach), 76 77 DEVMETHOD(bus_print_child, bus_generic_print_child), 78 79 { 0, 0 } 80 }; 81 82 static driver_t ida_pci_driver = { 83 "ida", 84 ida_pci_methods, 85 sizeof(struct ida_softc) 86 }; 87 88 static devclass_t ida_devclass; 89 90 static int 91 ida_pci_probe(device_t dev) 92 { 93 u_long board; 94 int i; 95 96 if (pci_get_devid(dev) == IDA_DEVICEID_SMART) { 97 board = pci_get_subdevice(dev); 98 for (i = 0; board_id[i].board; i++) { 99 if (board_id[i].board == board) { 100 device_set_desc(dev, board_id[i].desc); 101 return (0); 102 } 103 } 104 /* 105 * It's an unknown Compaq SMART device, but assume we 106 * can support it. 107 */ 108 device_set_desc(dev, "Unknown Compaq Smart Array controller"); 109 return (0); 110 } 111 return (ENXIO); 112 } 113 114 static int 115 ida_pci_attach(device_t dev) 116 { 117 struct ida_softc *ida; 118 u_int command; 119 int error, rid; 120 121 command = pci_read_config(dev, PCIR_COMMAND, 1); 122 123 /* 124 * for multiple card types, need to re-determine which type is 125 * being attached here 126 */ 127 128 /* 129 * it appears that this board only does MEMIO access. 130 */ 131 if ((command & PCIM_CMD_MEMEN) == 0) { 132 device_printf(dev, "Only memory mapped I/O is supported\n"); 133 return (ENXIO); 134 } 135 136 ida = (struct ida_softc *)device_get_softc(dev); 137 ida->dev = dev; 138 139 ida->regs_res_type = SYS_RES_MEMORY; 140 ida->regs_res_id = IDA_PCI_MEMADDR; 141 ida->regs = bus_alloc_resource(dev, ida->regs_res_type, 142 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE); 143 if (ida->regs == NULL) { 144 device_printf(dev, "can't allocate register resources\n"); 145 return (ENOMEM); 146 } 147 148 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, 149 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 150 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, 151 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG, 152 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW, 153 &ida->parent_dmat); 154 if (error != 0) { 155 device_printf(dev, "can't allocate DMA tag\n"); 156 ida_free(ida); 157 return (ENOMEM); 158 } 159 160 rid = 0; 161 ida->irq_res_type = SYS_RES_IRQ; 162 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid, 163 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 164 if (ida->irq == NULL) { 165 ida_free(ida); 166 return (ENOMEM); 167 } 168 error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO, 169 ida_intr, ida, &ida->ih); 170 if (error) { 171 device_printf(dev, "can't setup interrupt\n"); 172 ida_free(ida); 173 return (ENOMEM); 174 } 175 176 error = ida_init(ida); 177 if (error) { 178 ida_free(ida); 179 return (error); 180 } 181 ida_attach(ida); 182 ida->flags = IDA_ATTACHED; 183 184 return (0); 185 } 186 187 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0); 188