718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/*-
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* cyclades cyclom-y serial driver
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* Andrew Herbert <andrew@werple.apana.org.au>, 17 August 1993
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1993 Andrew Herbert.
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name Andrew Herbert may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Cyclades Y ISA serial interface driver
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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/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <isa/isavar.h>
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#include <dev/cy/cyreg.h>
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#include <dev/cy/cyvar.h>
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static int cy_isa_attach(device_t dev);
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static int cy_isa_probe(device_t dev);
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static device_method_t cy_isa_methods[] = {
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/* Device interface. */
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DEVMETHOD(device_probe, cy_isa_probe),
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DEVMETHOD(device_attach, cy_isa_attach),
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{ 0, 0 }
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};
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static driver_t cy_isa_driver = {
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cy_driver_name,
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cy_isa_methods,
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0,
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};
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DRIVER_MODULE(cy, isa, cy_isa_driver, cy_devclass, 0, 0);
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static int
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cy_isa_probe(device_t dev)
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{
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struct resource *mem_res;
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cy_addr iobase;
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int error, mem_rid;
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if (isa_get_logicalid(dev) != 0) /* skip PnP probes */
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return (ENXIO);
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mem_rid = 0;
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mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid,
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RF_ACTIVE);
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if (mem_res == NULL) {
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device_printf(dev, "ioport resource allocation failed\n");
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return (ENXIO);
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}
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iobase = rman_get_virtual(mem_res);
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/* Cyclom-16Y hardware reset (Cyclom-8Ys don't care) */
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cy_inb(iobase, CY16_RESET, 0); /* XXX? */
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DELAY(500); /* wait for the board to get its act together */
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/* this is needed to get the board out of reset */
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cy_outb(iobase, CY_CLEAR_INTR, 0, 0);
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DELAY(500);
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error = (cy_units(iobase, 0) == 0 ? ENXIO : 0);
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bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res);
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return (error);
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}
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static int
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cy_isa_attach(device_t dev)
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{
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struct resource *irq_res, *mem_res;
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void *irq_cookie, *vaddr, *vsc;
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int irq_rid, mem_rid;
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irq_res = NULL;
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mem_res = NULL;
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mem_rid = 0;
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mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid,
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RF_ACTIVE);
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if (mem_res == NULL) {
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device_printf(dev, "memory resource allocation failed\n");
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goto fail;
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}
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vaddr = rman_get_virtual(mem_res);
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vsc = cyattach_common(vaddr, 0);
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if (vsc == NULL) {
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device_printf(dev, "no ports found!\n");
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goto fail;
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}
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irq_rid = 0;
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irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid,
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RF_SHAREABLE | RF_ACTIVE);
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if (irq_res == NULL) {
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device_printf(dev, "interrupt resource allocation failed\n");
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goto fail;
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}
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if (bus_setup_intr(dev, irq_res, INTR_TYPE_TTY,
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cyintr, NULL, vsc, &irq_cookie) != 0) {
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device_printf(dev, "interrupt setup failed\n");
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goto fail;
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}
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return (0);
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fail:
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if (irq_res != NULL)
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bus_release_resource(dev, SYS_RES_IRQ, irq_rid, irq_res);
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if (mem_res != NULL)
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bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res);
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return (ENXIO);
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}
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