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: releng/11.0/sys/dev/fdc/fdc_cbus.c 298426 2016-04-21 18:37:36Z jhb $"); 31 32#include <sys/param.h> 33#include <sys/bio.h> 34#include <sys/bus.h> 35#include <sys/kernel.h> 36#include <sys/lock.h> 37#include <sys/module.h> 38#include <sys/mutex.h> 39#include <sys/rman.h> 40#include <sys/systm.h> 41 42#include <machine/bus.h> 43 44#include <pc98/cbus/cbus.h> 45#include <dev/fdc/fdcvar.h> 46 47#include <isa/isavar.h> 48 49static bus_addr_t fdc_iat[] = {0, 2, 4}; 50 51static int 52fdc_cbus_alloc_resources(device_t dev, struct fdc_data *fdc) 53{ 54 struct resource *res; 55 int i, rid; 56 57 fdc->fdc_dev = dev; 58 rid = 0; 59 res = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, fdc_iat, 3, 60 RF_ACTIVE); 61 if (res == NULL) { 62 device_printf(dev, "cannot reserve I/O port range\n"); 63 return (ENXIO); 64 } 65 isa_load_resourcev(res, fdc_iat, 3); 66 for (i = 0; i < 3; i++) { 67 fdc->resio[i] = res; 68 fdc->ridio[i] = rid; 69 fdc->ioff[i] = i; 70 fdc->ioh[i] = rman_get_bushandle(res); 71 } 72 fdc->iot = rman_get_bustag(res); 73 74 rid = 3; 75 bus_set_resource(dev, SYS_RES_IOPORT, rid, IO_FDPORT, 1); 76 res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); 77 if (res == NULL) { 78 device_printf(dev, "cannot reserve I/O port range\n"); 79 return (ENXIO); 80 } 81 fdc->resio[3] = res; 82 fdc->ridio[3] = rid; 83 fdc->ioff[3] = 0; 84 fdc->ioh[3] = rman_get_bushandle(res); 85 /* XXX: Reuses fdc->iot */ 86 87 rid = 4; 88 bus_set_resource(dev, SYS_RES_IOPORT, rid, 0x4be, 1); 89 res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); 90 if (res == NULL) { 91 device_printf(dev, "cannot reserve I/O port range\n"); 92 return (ENXIO); 93 } 94 fdc->resio[4] = res; 95 fdc->ridio[4] = rid; 96 fdc->ioff[4] = 0; 97 fdc->ioh[4] = rman_get_bushandle(res); 98 /* XXX: Reuses fdc->iot */ 99 100 fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq, 101 RF_ACTIVE); 102 if (fdc->res_irq == NULL) { 103 device_printf(dev, "cannot reserve interrupt line\n"); 104 return (ENXIO); 105 } 106 107 if ((fdc->flags & FDC_NODMA) == 0) { 108 fdc->res_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, 109 &fdc->rid_drq, RF_ACTIVE); 110 if (fdc->res_drq == NULL) { 111 device_printf(dev, "cannot reserve DMA request line\n"); 112 return (ENXIO); 113 } 114 fdc->dmachan = rman_get_start(fdc->res_drq); 115 } 116 117 return (0); 118} 119 120static int 121fdc_cbus_probe(device_t dev) 122{ 123 int error; 124 struct fdc_data *fdc; 125 126 fdc = device_get_softc(dev); 127 128 /* Check pnp ids */ 129 if (isa_get_vendorid(dev)) 130 return (ENXIO); 131 132 /* Attempt to allocate our resources for the duration of the probe */ 133 error = fdc_cbus_alloc_resources(dev, fdc); 134 if (error == 0) 135 error = fdc_initial_reset(dev, fdc); 136 137 fdc_release_resources(fdc); 138 return (error); 139} 140 141static int 142fdc_cbus_attach(device_t dev) 143{ 144 struct fdc_data *fdc; 145 int error; 146 147 fdc = device_get_softc(dev); 148 error = fdc_cbus_alloc_resources(dev, fdc); 149 if (error == 0) 150 error = fdc_attach(dev); 151 if (error == 0) 152 error = fdc_hints_probe(dev); 153 if (error == 0) 154 fdc_start_worker(dev); 155 else 156 fdc_release_resources(fdc); 157 return (error); 158} 159 160static device_method_t fdc_methods[] = { 161 /* Device interface */ 162 DEVMETHOD(device_probe, fdc_cbus_probe), 163 DEVMETHOD(device_attach, fdc_cbus_attach), 164 DEVMETHOD(device_detach, fdc_detach), 165 DEVMETHOD(device_shutdown, bus_generic_shutdown), 166 DEVMETHOD(device_suspend, bus_generic_suspend), 167 DEVMETHOD(device_resume, bus_generic_resume), 168 169 /* Bus interface */ 170 DEVMETHOD(bus_print_child, fdc_print_child), 171 DEVMETHOD(bus_read_ivar, fdc_read_ivar), 172 DEVMETHOD(bus_write_ivar, fdc_write_ivar), 173 /* Our children never use any other bus interface methods. */ 174 175 { 0, 0 } 176}; 177 178static driver_t fdc_driver = { 179 "fdc", 180 fdc_methods, 181 sizeof(struct fdc_data) 182}; 183 184DRIVER_MODULE(fdc, isa, fdc_driver, fdc_devclass, 0, 0); 185