19d3b47b92
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.
173 lines
4.3 KiB
C
173 lines
4.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2009 Neelkanth Natu
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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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*
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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
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* FOR 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/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <machine/bus.h>
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#include <vm/uma.h>
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#include <sys/ata.h>
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#include <dev/ata/ata-all.h>
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#include <machine/resource.h>
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__FBSDID("$FreeBSD$");
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static int
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ata_zbbus_probe(device_t dev)
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{
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return (ata_probe(dev));
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}
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static int
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ata_zbbus_attach(device_t dev)
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{
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int i, rid, regshift, regoffset;
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struct ata_channel *ch;
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struct resource *io;
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ch = device_get_softc(dev);
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if (ch->attached)
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return (0);
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ch->attached = 1;
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rid = 0;
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io = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
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if (io == NULL)
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return (ENXIO);
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/*
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* SWARM needs an address shift of 5 when accessing ATA registers.
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*
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* For e.g. an access to register 4 actually needs an address
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* of (4 << 5) to be output on the generic bus.
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*/
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regshift = 5;
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resource_int_value(device_get_name(dev), device_get_unit(dev),
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"regshift", ®shift);
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if (regshift && bootverbose)
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device_printf(dev, "using a register shift of %d\n", regshift);
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regoffset = 0x1F0;
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resource_int_value(device_get_name(dev), device_get_unit(dev),
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"regoffset", ®offset);
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if (regoffset && bootverbose) {
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device_printf(dev, "using a register offset of 0x%0x\n",
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regoffset);
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}
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/* setup the ata register addresses */
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for (i = ATA_DATA; i <= ATA_COMMAND; ++i) {
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ch->r_io[i].res = io;
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ch->r_io[i].offset = (regoffset + i) << regshift;
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}
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ch->r_io[ATA_CONTROL].res = io;
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ch->r_io[ATA_CONTROL].offset = (regoffset + ATA_CTLOFFSET) << regshift;
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ch->r_io[ATA_IDX_ADDR].res = io; /* XXX what is this used for */
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ata_default_registers(dev);
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/* initialize softc for this channel */
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ch->unit = 0;
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ch->flags |= ATA_USE_16BIT;
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ata_generic_hw(dev);
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return (ata_attach(dev));
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}
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static int
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ata_zbbus_detach(device_t dev)
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{
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int error;
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struct ata_channel *ch = device_get_softc(dev);
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if (!ch->attached)
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return (0);
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ch->attached = 0;
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error = ata_detach(dev);
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bus_release_resource(dev, SYS_RES_MEMORY, 0,
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ch->r_io[ATA_IDX_ADDR].res);
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return (error);
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}
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static int
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ata_zbbus_suspend(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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if (!ch->attached)
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return (0);
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return (ata_suspend(dev));
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}
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static int
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ata_zbbus_resume(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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if (!ch->attached)
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return (0);
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return (ata_resume(dev));
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}
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static device_method_t ata_zbbus_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, ata_zbbus_probe),
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DEVMETHOD(device_attach, ata_zbbus_attach),
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DEVMETHOD(device_detach, ata_zbbus_detach),
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DEVMETHOD(device_suspend, ata_zbbus_suspend),
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DEVMETHOD(device_resume, ata_zbbus_resume),
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{ 0, 0 }
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};
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static driver_t ata_zbbus_driver = {
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"ata",
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ata_zbbus_methods,
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sizeof(struct ata_channel)
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};
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DRIVER_MODULE(ata, zbbus, ata_zbbus_driver, ata_devclass, 0, 0);
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