/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2003-2012 Broadcom Corporation
* 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.
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <dev/iicbus/iicbus.h>
#include <dev/iicbus/iiconf.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include "iicbus_if.h"
#include "iicoc.h"
static int
iicoc_detach(device_t dev)
{
struct iicoc_softc *sc;
sc = device_get_softc(dev);
device_delete_children(dev);
bus_generic_detach(dev);
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem_res);
mtx_destroy(&sc->sc_mtx);
return (0);
}
/*
* We add all the devices which we know about.
* The generic attach routine will attach them if they are alive.
*/
static int
iicoc_attach(device_t dev)
{
int bus;
struct iicoc_softc *sc;
sc = device_get_softc(dev);
bus = device_get_unit(dev);
sc->dev = dev;
mtx_init(&sc->sc_mtx, "iicoc", "iicoc", MTX_DEF);
sc->mem_rid = 0;
sc->mem_res = bus_alloc_resource_anywhere(dev,
SYS_RES_MEMORY, &sc->mem_rid, 0x100, RF_ACTIVE);
if (sc->mem_res == NULL) {
device_printf(dev, "Could not allocate bus resource.\n");
return (-1);
}
iicoc_init(dev);
sc->iicbus = device_add_child(dev, "iicbus", -1);
if (sc->iicbus == NULL) {
device_printf(dev, "Could not allocate iicbus instance.\n");
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid,
sc->mem_res);
mtx_destroy(&sc->sc_mtx);
return (-1);
}
bus_generic_attach(dev);
return (0);
}
static int
iicoc_probe(device_t dev)
{
struct iicoc_softc *sc;
sc = device_get_softc(dev);
if ((pci_get_vendor(dev) == 0x184e) &&
(pci_get_device(dev) == 0x1011)) {
sc->clockfreq = XLP_I2C_CLKFREQ;
sc->i2cfreq = XLP_I2C_FREQ;
sc->reg_shift = 2;
device_set_desc(dev, "Netlogic XLP I2C Controller");
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static device_method_t iicoc_methods[] = {
/* device interface */
DEVMETHOD(device_probe, iicoc_probe),
DEVMETHOD(device_attach, iicoc_attach),
DEVMETHOD(device_detach, iicoc_detach),
/* iicbus interface */
DEVMETHOD(iicbus_callback, iicbus_null_callback),
DEVMETHOD(iicbus_repeated_start, iicoc_iicbus_repeated_start),
DEVMETHOD(iicbus_start, iicoc_iicbus_start),
DEVMETHOD(iicbus_stop, iicoc_iicbus_stop),
DEVMETHOD(iicbus_reset, iicoc_iicbus_reset),
DEVMETHOD(iicbus_write, iicoc_iicbus_write),
DEVMETHOD(iicbus_read, iicoc_iicbus_read),
DEVMETHOD(iicbus_transfer, iicbus_transfer_gen),
DEVMETHOD_END
};
static driver_t iicoc_driver = {
"iicoc",
iicoc_methods,
sizeof(struct iicoc_softc),
};
DRIVER_MODULE(iicoc, pci, iicoc_driver, iicoc_devclass, 0, 0);
