dpt_eisa.c revision 59078
1/*- 2 * Copyright (c) 1997, 2000 Matthew N. Dodd <winter@jurai.net> 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: head/sys/dev/dpt/dpt_eisa.c 59078 2000-04-07 02:50:24Z mdodd $ 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/bus.h> 34 35#include <machine/bus_pio.h> 36#include <machine/bus.h> 37#include <machine/resource.h> 38#include <sys/rman.h> 39 40#include <dev/eisa/eisaconf.h> 41 42#include <cam/scsi/scsi_all.h> 43 44#include <dev/dpt/dpt.h> 45 46#define DPT_EISA_IOSIZE 0x100 47#define DPT_EISA_SLOT_OFFSET 0x0c00 48#define DPT_EISA_EATA_REG_OFFSET 0x0088 49 50#define DPT_EISA_DPT2402 0x12142402 /* DPT PM2012A/9X */ 51#define DPT_EISA_DPTA401 0x1214A401 /* DPT PM2012B/9X */ 52#define DPT_EISA_DPTA402 0x1214A402 /* DPT PM2012B2/9X */ 53#define DPT_EISA_DPTA410 0x1214A410 /* DPT PM2x22A/9X */ 54#define DPT_EISA_DPTA411 0x1214A411 /* DPT Spectre */ 55#define DPT_EISA_DPTA412 0x1214A412 /* DPT PM2021A/9X */ 56#define DPT_EISA_DPTA420 0x1214A420 /* DPT Smart Cache IV (PM2042) */ 57#define DPT_EISA_DPTA501 0x1214A501 /* DPT PM2012B1/9X" */ 58#define DPT_EISA_DPTA502 0x1214A502 /* DPT PM2012Bx/9X */ 59#define DPT_EISA_DPTA701 0x1214A701 /* DPT PM2011B1/9X */ 60#define DPT_EISA_DPTBC01 0x1214BC01 /* DPT PM3011/7X ESDI */ 61#define DPT_EISA_DPT8200 0x12148200 /* NEC EATA SCSI */ 62#define DPT_EISA_DPT2408 0x12142408 /* ATT EATA SCSI */ 63 64/* Function Prototypes */ 65 66static const char * dpt_eisa_match (eisa_id_t); 67static int dpt_eisa_probe (device_t); 68static int dpt_eisa_attach (device_t); 69 70 71static int 72dpt_eisa_probe (device_t dev) 73{ 74 const char * desc; 75 u_int32_t io_base; 76 dpt_conf_t * conf; 77 78 desc = dpt_eisa_match(eisa_get_id(dev)); 79 if (!desc) 80 return (ENXIO); 81 device_set_desc(dev, desc); 82 83 io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + DPT_EISA_SLOT_OFFSET; 84 85 conf = dpt_pio_get_conf(io_base + DPT_EISA_EATA_REG_OFFSET); 86 if (!conf) { 87 printf("dpt: dpt_pio_get_conf() failed.\n"); 88 return (ENXIO); 89 } 90 91 eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE); 92 eisa_add_intr(dev, conf->IRQ, 93 (conf->IRQ_TR ? EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE)); 94 95 return 0; 96} 97 98static int 99dpt_eisa_attach (device_t dev) 100{ 101 dpt_softc_t * dpt; 102 struct resource *io = 0; 103 struct resource *irq = 0; 104 int s; 105 int rid; 106 void * ih; 107 int error = 0; 108 109 rid = 0; 110 io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE); 111 if (!io) { 112 device_printf(dev, "No I/O space?!\n"); 113 error = ENOMEM; 114 goto bad; 115 } 116 117 rid = 0; 118 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE); 119 if (!irq) { 120 device_printf(dev, "No irq?!\n"); 121 error = ENOMEM; 122 goto bad; 123 } 124 125 dpt = dpt_alloc(dev, rman_get_bustag(io), 126 rman_get_bushandle(io) + DPT_EISA_EATA_REG_OFFSET); 127 if (dpt == NULL) { 128 error = ENOMEM; 129 goto bad; 130 } 131 132 /* Allocate a dmatag representing the capabilities of this attachment */ 133 /* XXX Should be a child of the EISA bus dma tag */ 134 if (bus_dma_tag_create( /* parent */ NULL, 135 /* alignemnt */ 1, 136 /* boundary */ 0, 137 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 138 /* highaddr */ BUS_SPACE_MAXADDR, 139 /* filter */ NULL, 140 /* filterarg */ NULL, 141 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 142 /* nsegments */ BUS_SPACE_UNRESTRICTED, 143 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 144 /* flags */0, 145 &dpt->parent_dmat) != 0) { 146 dpt_free(dpt); 147 error = ENXIO; 148 goto bad; 149 } 150 151 s = splcam(); 152 153 if (dpt_init(dpt) != 0) { 154 dpt_free(dpt); 155 error = ENXIO; 156 goto bad; 157 } 158 159 /* Register with the XPT */ 160 dpt_attach(dpt); 161 162 splx(s); 163 164 if (bus_setup_intr(dev, irq, INTR_TYPE_CAM, dpt_intr, dpt, &ih)) { 165 device_printf(dev, "Unable to register interrupt handler\n"); 166 error = ENXIO; 167 goto bad; 168 } 169 170 return (error); 171 172 bad: 173 if (io) 174 bus_release_resource(dev, SYS_RES_IOPORT, 0, io); 175 if (irq) 176 bus_release_resource(dev, SYS_RES_IRQ, 0, irq); 177 178 return (error); 179} 180 181static const char * 182dpt_eisa_match(type) 183 eisa_id_t type; 184{ 185 switch (type) { 186 case DPT_EISA_DPT2402: 187 case DPT_EISA_DPTA401: 188 case DPT_EISA_DPTA402: 189 case DPT_EISA_DPTA410: 190 case DPT_EISA_DPTA411: 191 case DPT_EISA_DPTA412: 192 case DPT_EISA_DPTA420: 193 case DPT_EISA_DPTA501: 194 case DPT_EISA_DPTA502: 195 case DPT_EISA_DPTA701: 196 case DPT_EISA_DPTBC01: 197 case DPT_EISA_DPT8200: 198 case DPT_EISA_DPT2408: 199 return ("DPT SCSI Host Bus Adapter"); 200 break; 201 default: 202 break; 203 } 204 205 return (NULL); 206} 207 208static device_method_t dpt_eisa_methods[] = { 209 /* Device interface */ 210 DEVMETHOD(device_probe, dpt_eisa_probe), 211 DEVMETHOD(device_attach, dpt_eisa_attach), 212 213 { 0, 0 } 214}; 215 216static driver_t dpt_eisa_driver = { 217 "dpt", 218 dpt_eisa_methods, 219 sizeof(dpt_softc_t), 220}; 221 222static devclass_t dpt_devclass; 223 224DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0); 225