247875210d
Make different bus attachments for Altera and Terasice device drivers share the same devclass_t. Sponsored by: DARPA, AFRL
155 lines
4.6 KiB
C
155 lines
4.6 KiB
C
/*-
|
|
* Copyright (c) 2012-2013 Robert N. M. Watson
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
|
|
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* 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.
|
|
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/bus.h>
|
|
#include <sys/condvar.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/uio.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/vm.h>
|
|
|
|
#include <vm/vm.h>
|
|
|
|
#include <dev/fdt/fdt_common.h>
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <dev/altera/avgen/altera_avgen.h>
|
|
|
|
static int
|
|
altera_avgen_fdt_probe(device_t dev)
|
|
{
|
|
|
|
if (ofw_bus_is_compatible(dev, "sri-cambridge,avgen")) {
|
|
device_set_desc(dev, "Generic Altera Avalon device attachment");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
altera_avgen_fdt_attach(device_t dev)
|
|
{
|
|
struct altera_avgen_softc *sc;
|
|
char *str_fileio, *str_mmapio;
|
|
char *str_devname;
|
|
phandle_t node;
|
|
pcell_t cell;
|
|
int devunit, error;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->avg_dev = dev;
|
|
sc->avg_unit = device_get_unit(dev);
|
|
|
|
/*
|
|
* Query driver-specific OpenFirmware properties to determine how to
|
|
* expose the device via /dev.
|
|
*/
|
|
str_fileio = NULL;
|
|
str_mmapio = NULL;
|
|
str_devname = NULL;
|
|
devunit = -1;
|
|
sc->avg_width = 1;
|
|
node = ofw_bus_get_node(dev);
|
|
if (OF_getprop(node, "sri-cambridge,width", &cell, sizeof(cell)) > 0)
|
|
sc->avg_width = cell;
|
|
(void)OF_getprop_alloc(node, "sri-cambridge,fileio", sizeof(char),
|
|
(void **)&str_fileio);
|
|
(void)OF_getprop_alloc(node, "sri-cambridge,mmapio", sizeof(char),
|
|
(void **)&str_mmapio);
|
|
(void)OF_getprop_alloc(node, "sri-cambridge,devname", sizeof(char),
|
|
(void **)&str_devname);
|
|
if (OF_getprop(node, "sri-cambridge,devunit", &cell, sizeof(cell)) > 0)
|
|
devunit = cell;
|
|
|
|
/* Memory allocation and checking. */
|
|
sc->avg_rid = 0;
|
|
sc->avg_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
|
|
&sc->avg_rid, RF_ACTIVE);
|
|
if (sc->avg_res == NULL) {
|
|
device_printf(dev, "couldn't map memory\n");
|
|
return (ENXIO);
|
|
}
|
|
error = altera_avgen_attach(sc, str_fileio, str_mmapio, str_devname,
|
|
devunit);
|
|
if (error != 0)
|
|
bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid,
|
|
sc->avg_res);
|
|
if (str_fileio != NULL)
|
|
free(str_fileio, M_OFWPROP);
|
|
if (str_mmapio != NULL)
|
|
free(str_mmapio, M_OFWPROP);
|
|
if (str_devname != NULL)
|
|
free(str_devname, M_OFWPROP);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
altera_avgen_fdt_detach(device_t dev)
|
|
{
|
|
struct altera_avgen_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
altera_avgen_detach(sc);
|
|
bus_release_resource(dev, SYS_RES_MEMORY, sc->avg_rid, sc->avg_res);
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t altera_avgen_fdt_methods[] = {
|
|
DEVMETHOD(device_probe, altera_avgen_fdt_probe),
|
|
DEVMETHOD(device_attach, altera_avgen_fdt_attach),
|
|
DEVMETHOD(device_detach, altera_avgen_fdt_detach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t altera_avgen_fdt_driver = {
|
|
"altera_avgen",
|
|
altera_avgen_fdt_methods,
|
|
sizeof(struct altera_avgen_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(avgen, simplebus, altera_avgen_fdt_driver,
|
|
altera_avgen_devclass, 0, 0);
|