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/*-
* Copyright (c) 2009-2012 Alexander Motin <mav@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <dev/ahci/ahci.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
static struct ofw_compat_data compat_data[] = {
{"generic-ahci", 1},
{"snps,dwc-ahci", 1},
{NULL, 0}
};
static int
ahci_gen_ctlr_reset(device_t dev)
{
return ahci_ctlr_reset(dev);
}
static int
ahci_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
return (ENXIO);
device_set_desc_copy(dev, "AHCI SATA controller");
return (BUS_PROBE_DEFAULT);
}
static int
ahci_gen_attach(device_t dev)
{
struct ahci_controller *ctlr = device_get_softc(dev);
int error;
ctlr->r_rid = 0;
ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid,
RF_ACTIVE);
if (ctlr->r_mem == NULL)
return (ENXIO);
/* Setup controller defaults. */
ctlr->numirqs = 1;
/* Reset controller */
if ((error = ahci_gen_ctlr_reset(dev)) == 0)
error = ahci_attach(dev);
if (error != 0) {
if (ctlr->r_mem != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid,
ctlr->r_mem);
}
return error;
}
static int
ahci_gen_detach(device_t dev)
{
ahci_detach(dev);
return (0);
}
static devclass_t ahci_gen_devclass;
static device_method_t ahci_methods[] = {
DEVMETHOD(device_probe, ahci_probe),
DEVMETHOD(device_attach, ahci_gen_attach),
DEVMETHOD(device_detach, ahci_gen_detach),
DEVMETHOD(bus_print_child, ahci_print_child),
DEVMETHOD(bus_alloc_resource, ahci_alloc_resource),
DEVMETHOD(bus_release_resource, ahci_release_resource),
DEVMETHOD(bus_setup_intr, ahci_setup_intr),
DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
DEVMETHOD(bus_child_location_str, ahci_child_location_str),
DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag),
DEVMETHOD_END
};
static driver_t ahci_driver = {
"ahci",
ahci_methods,
sizeof(struct ahci_controller)
};
DRIVER_MODULE(ahci, simplebus, ahci_driver, ahci_gen_devclass, NULL, NULL);
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