1/*- 2 * Copyright (c) 2004 TAKAHASHI Yoshihiro 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 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31 32#include <sys/param.h> 33#include <sys/bio.h> 34#include <sys/bus.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37#include <sys/rman.h> 38#include <sys/systm.h> 39 40#include <machine/bus.h> 41 42#include <pc98/cbus/cbus.h> 43#include <pc98/cbus/fdcreg.h> 44#include <pc98/cbus/fdcvar.h> 45 46#include <isa/isavar.h> 47 48static bus_addr_t fdc_iat[] = {0, 2, 4}; 49 50static int 51fdc_cbus_alloc_resources(device_t dev, struct fdc_data *fdc) 52{ 53 int rid; 54 55 fdc->fdc_dev = dev; 56 fdc->rid_ioport = 0; 57 fdc->rid_irq = 0; 58 fdc->rid_drq = 0; 59 fdc->res_irq = 0; 60 fdc->res_drq = 0; 61 62 fdc->res_ioport = isa_alloc_resourcev(dev, SYS_RES_IOPORT, 63 &fdc->rid_ioport, fdc_iat, 64 3, RF_ACTIVE); 65 if (fdc->res_ioport == 0) { 66 device_printf(dev, "cannot reserve I/O port range\n"); 67 return ENXIO; 68 } 69 isa_load_resourcev(fdc->res_ioport, fdc_iat, 3); 70 fdc->portt = rman_get_bustag(fdc->res_ioport); 71 fdc->porth = rman_get_bushandle(fdc->res_ioport); 72 73 rid = 3; 74 bus_set_resource(dev, SYS_RES_IOPORT, rid, IO_FDPORT, 1); 75 fdc->res_fdsio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 76 RF_ACTIVE); 77 if (fdc->res_fdsio == 0) 78 return ENXIO; 79 fdc->sc_fdsiot = rman_get_bustag(fdc->res_fdsio); 80 fdc->sc_fdsioh = rman_get_bushandle(fdc->res_fdsio); 81 82 rid = 4; 83 bus_set_resource(dev, SYS_RES_IOPORT, rid, 0x4be, 1); 84 fdc->res_fdemsio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 85 RF_ACTIVE); 86 if (fdc->res_fdemsio == 0) 87 return ENXIO; 88 fdc->sc_fdemsiot = rman_get_bustag(fdc->res_fdemsio); 89 fdc->sc_fdemsioh = rman_get_bushandle(fdc->res_fdemsio); 90 91 fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq, 92 RF_ACTIVE); 93 if (fdc->res_irq == 0) { 94 device_printf(dev, "cannot reserve interrupt line\n"); 95 return ENXIO; 96 } 97 98 if ((fdc->flags & FDC_NODMA) == 0) { 99 fdc->res_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, 100 &fdc->rid_drq, RF_ACTIVE); 101 if (fdc->res_drq == 0) { 102 device_printf(dev, "cannot reserve DMA request line\n"); 103 return ENXIO; 104 } 105 fdc->dmachan = rman_get_start(fdc->res_drq); 106 } 107 108 return 0; 109} 110 111static int 112fdc_cbus_probe(device_t dev) 113{ 114 int error; 115 struct fdc_data *fdc; 116 117 fdc = device_get_softc(dev); 118 119 /* Check pnp ids */ 120 if (isa_get_vendorid(dev)) 121 return (ENXIO); 122 123 /* Attempt to allocate our resources for the duration of the probe */ 124 error = fdc_cbus_alloc_resources(dev, fdc); 125 if (!error) 126 error = fdc_initial_reset(fdc); 127 128 fdc_release_resources(fdc); 129 return (error); 130} 131 132static int 133fdc_cbus_attach(device_t dev) 134{ 135 struct fdc_data *fdc; 136 int error; 137 138 fdc = device_get_softc(dev); 139 140 if ((error = fdc_cbus_alloc_resources(dev, fdc)) != 0 || 141 (error = fdc_attach(dev)) != 0 || 142 (error = fdc_hints_probe(dev)) != 0) { 143 fdc_release_resources(fdc); 144 return (error); 145 } 146 147 return (0); 148} 149 150static device_method_t fdc_methods[] = { 151 /* Device interface */ 152 DEVMETHOD(device_probe, fdc_cbus_probe), 153 DEVMETHOD(device_attach, fdc_cbus_attach), 154 DEVMETHOD(device_detach, fdc_detach), 155 DEVMETHOD(device_shutdown, bus_generic_shutdown), 156 DEVMETHOD(device_suspend, bus_generic_suspend), 157 DEVMETHOD(device_resume, bus_generic_resume), 158 159 /* Bus interface */ 160 DEVMETHOD(bus_print_child, fdc_print_child), 161 DEVMETHOD(bus_read_ivar, fdc_read_ivar), 162 DEVMETHOD(bus_write_ivar, fdc_write_ivar), 163 /* Our children never use any other bus interface methods. */ 164 165 { 0, 0 } 166}; 167 168static driver_t fdc_driver = { 169 "fdc", 170 fdc_methods, 171 sizeof(struct fdc_data) 172}; 173 174DRIVER_MODULE(fdc, isa, fdc_driver, fdc_devclass, 0, 0); 175