134 lines
5.0 KiB
C
134 lines
5.0 KiB
C
/* $NetBSD: gttwsi.c,v 1.11 2013/09/06 00:56:12 matt Exp $ */
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/*
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* Copyright (c) 2008 Eiji Kawauchi.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Eiji Kawauchi.
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* 4. The name of the author 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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 2005 Brocade Communcations, inc.
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* All rights reserved.
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*
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* Written by Matt Thomas for Brocade Communcations, Inc.
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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 of Brocade Communications, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BROCADE COMMUNICATIONS, INC. ``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 EITHER BROCADE COMMUNICATIONS, INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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//#define TWSI_DEBUG
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/*
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* Marvell Two-Wire Serial Interface (aka I2C) master driver
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: gttwsi.c,v 1.11 2013/09/06 00:56:12 matt Exp $");
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#include "locators.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/condvar.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/mutex.h>
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#include <sys/systm.h>
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#include <machine/cpu.h>
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#include <machine/param.h>
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#include <dev/i2c/i2cvar.h>
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#include <dev/i2c/gttwsireg.h>
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#include <dev/i2c/gttwsivar.h>
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#include <dev/marvell/marvellvar.h>
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static int gttwsi_match(device_t, cfdata_t, void *);
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static void gttwsi_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(gttwsi_gt, sizeof(struct gttwsi_softc),
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gttwsi_match, gttwsi_attach, NULL, NULL);
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CFATTACH_DECL_NEW(gttwsi_mbus, sizeof(struct gttwsi_softc),
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gttwsi_match, gttwsi_attach, NULL, NULL);
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/* ARGSUSED */
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static int
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gttwsi_match(device_t parent, cfdata_t match, void *aux)
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{
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struct marvell_attach_args *mva = aux;
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if (strcmp(mva->mva_name, match->cf_name) != 0)
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return 0;
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if (mva->mva_offset == MVA_OFFSET_DEFAULT ||
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mva->mva_irq == MVA_IRQ_DEFAULT)
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return 0;
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mva->mva_size = GTTWSI_SIZE;
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return 1;
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}
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/* ARGSUSED */
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static void
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gttwsi_attach(device_t parent, device_t self, void *args)
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{
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struct marvell_attach_args *mva = args;
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bus_space_handle_t ioh;
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if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, mva->mva_offset,
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mva->mva_size, &ioh)) {
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aprint_error(": cannot map registers\n");
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return;
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}
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gttwsi_attach_subr(self, mva->mva_iot, ioh);
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marvell_intr_establish(mva->mva_irq, IPL_BIO, gttwsi_intr,
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device_private(self));
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gttwsi_config_children(self);
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}
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