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83e78a7f6e
the magic numbers used with NE7CMD_SPECIFY with invocations of the NE7_SPEC_x() macros. Approved by: nyan
183 lines
4.9 KiB
C
183 lines
4.9 KiB
C
/*-
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* Copyright (c) 2004 TAKAHASHI Yoshihiro
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bio.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <pc98/cbus/cbus.h>
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#include <dev/fdc/fdcvar.h>
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#include <isa/isavar.h>
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static bus_addr_t fdc_iat[] = {0, 2, 4};
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static int
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fdc_cbus_alloc_resources(device_t dev, struct fdc_data *fdc)
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{
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struct resource *res;
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int i, rid;
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fdc->fdc_dev = dev;
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rid = 0;
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res = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, fdc_iat, 3,
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RF_ACTIVE);
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if (res == NULL) {
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device_printf(dev, "cannot reserve I/O port range\n");
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return (ENXIO);
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}
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isa_load_resourcev(res, fdc_iat, 3);
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for (i = 0; i < 3; i++) {
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fdc->resio[i] = res;
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fdc->ridio[i] = rid;
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fdc->ioff[i] = i;
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fdc->ioh[i] = rman_get_bushandle(res);
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}
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fdc->iot = rman_get_bustag(res);
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rid = 3;
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bus_set_resource(dev, SYS_RES_IOPORT, rid, IO_FDPORT, 1);
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res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
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if (res == NULL) {
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device_printf(dev, "cannot reserve I/O port range\n");
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return (ENXIO);
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}
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fdc->resio[3] = res;
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fdc->ridio[3] = rid;
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fdc->ioff[3] = 0;
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fdc->ioh[3] = rman_get_bushandle(res);
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/* XXX: Reuses fdc->iot */
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rid = 4;
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bus_set_resource(dev, SYS_RES_IOPORT, rid, 0x4be, 1);
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res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
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if (res == NULL) {
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device_printf(dev, "cannot reserve I/O port range\n");
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return (ENXIO);
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}
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fdc->resio[4] = res;
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fdc->ridio[4] = rid;
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fdc->ioff[4] = 0;
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fdc->ioh[4] = rman_get_bushandle(res);
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/* XXX: Reuses fdc->iot */
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fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq,
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RF_ACTIVE);
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if (fdc->res_irq == NULL) {
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device_printf(dev, "cannot reserve interrupt line\n");
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return (ENXIO);
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}
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if ((fdc->flags & FDC_NODMA) == 0) {
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fdc->res_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ,
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&fdc->rid_drq, RF_ACTIVE);
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if (fdc->res_drq == NULL) {
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device_printf(dev, "cannot reserve DMA request line\n");
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return (ENXIO);
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}
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fdc->dmachan = rman_get_start(fdc->res_drq);
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}
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return (0);
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}
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static int
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fdc_cbus_probe(device_t dev)
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{
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int error;
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struct fdc_data *fdc;
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fdc = device_get_softc(dev);
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/* Check pnp ids */
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if (isa_get_vendorid(dev))
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return (ENXIO);
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/* Attempt to allocate our resources for the duration of the probe */
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error = fdc_cbus_alloc_resources(dev, fdc);
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if (error == 0)
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error = fdc_initial_reset(dev, fdc);
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fdc_release_resources(fdc);
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return (error);
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}
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static int
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fdc_cbus_attach(device_t dev)
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{
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struct fdc_data *fdc;
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int error;
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fdc = device_get_softc(dev);
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error = fdc_cbus_alloc_resources(dev, fdc);
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if (error == 0)
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error = fdc_attach(dev);
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if (error == 0)
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error = fdc_hints_probe(dev);
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if (error)
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fdc_release_resources(fdc);
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return (error);
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}
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static device_method_t fdc_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, fdc_cbus_probe),
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DEVMETHOD(device_attach, fdc_cbus_attach),
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DEVMETHOD(device_detach, fdc_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, fdc_print_child),
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DEVMETHOD(bus_read_ivar, fdc_read_ivar),
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DEVMETHOD(bus_write_ivar, fdc_write_ivar),
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/* Our children never use any other bus interface methods. */
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{ 0, 0 }
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};
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static driver_t fdc_driver = {
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"fdc",
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fdc_methods,
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sizeof(struct fdc_data)
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};
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DRIVER_MODULE(fdc, isa, fdc_driver, fdc_devclass, 0, 0);
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