7d4a1addde
The IOMD/VIDC combination is now moved to arch/arm/iomd together. These files still need a lot of cleaning up :( .... esp. the RC7500 support that is still dormant in it; this needs either to be removed or split out for RC7500's ``VIDC'' video/audio variant. Apart from the RC7500 support wich is still in arch/arm32 the iomd,vidc,riscpc and podulebus subdirectories of arch/arm32 can be removed. This split still uses some small parts of arch/arm32 .... those are the MI parts that haven't been moved yet. RiscPC/A7000 have been tested and confirmed to build as should NC.
203 lines
5.2 KiB
C
203 lines
5.2 KiB
C
/* $NetBSD: vidc20.c,v 1.1 2001/10/05 22:27:43 reinoud Exp $ */
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/*
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* Copyright (c) 1997 Mark Brinicombe
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* Copyright (c) 1997 Causality Limited
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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 by Mark Brinicombe
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS 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 OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* vidc20.c
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*
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* VIDC20 driver
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*
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* Created : 22/02/97
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <arm/iomd/vidc.h>
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#include <machine/io.h>
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#include <arm/iomd/iomdreg.h>
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#include <arm/iomd/iomdvar.h>
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#include <arm/mainbus/mainbus.h>
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#include "locators.h"
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struct vidc20_softc {
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struct device sc_dev;
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bus_space_tag_t sc_iot;
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};
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static int vidcmatch __P((struct device *self, struct cfdata *cf, void *aux));
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static void vidcattach __P((struct device *parent, struct device *self, void *aux));
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static int vidcprint __P((void *aux, const char *name));
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static int vidcsearch __P((struct device *, struct cfdata *, void *));
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/*
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* vidc_base gives the base of the VIDC chip in memory; this is for the rest isnt
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* busspaceified yet. Initialised with VIDC_BASE for backwards compatibility.
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*/
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int *vidc_base = (int *) VIDC_BASE;
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/*
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* vidc_fref is the reference frequency in Mhz of the detected VIDC (dependent on IOMD/IOC)
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* XXX default is RPC600 ?
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*/
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int vidc_fref = 24000000;
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struct cfattach vidc_ca = {
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sizeof (struct vidc20_softc), vidcmatch, vidcattach
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};
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/*
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* vidcmatch()
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*
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* VIDC20 is a write only device so we cannot probe it
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* We must assume things are ok.
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*/
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static int
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vidcmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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/* struct mainbus_attach_args *mb = aux;*/
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return(1);
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}
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/*
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* vidcprint()
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*
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* print routine used during config of children
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*/
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static int
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vidcprint(aux, name)
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void *aux;
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const char *name;
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{
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struct mainbus_attach_args *mb = aux;
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if (mb->mb_iobase != MAINBUSCF_BASE_DEFAULT)
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printf(" base 0x%x", mb->mb_iobase);
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if (mb->mb_iosize > 1)
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printf("-0x%x", mb->mb_iobase + mb->mb_iosize - 1);
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if (mb->mb_irq != -1)
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printf(" irq %d", mb->mb_irq);
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if (mb->mb_drq != -1)
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printf(" drq 0x%08x", mb->mb_drq);
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/* XXXX print flags */
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return (QUIET);
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}
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/*
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* vidcsearch()
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*
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* search routine used during the config of children
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*/
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static int
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vidcsearch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct vidc20_softc *sc = (struct vidc20_softc *)parent;
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struct mainbus_attach_args mb;
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int tryagain;
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do {
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if (cf->cf_loc[MAINBUSCF_BASE] == MAINBUSCF_BASE_DEFAULT) {
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mb.mb_iobase = MAINBUSCF_BASE_DEFAULT;
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mb.mb_iosize = 0;
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mb.mb_drq = MAINBUSCF_DACK_DEFAULT;
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mb.mb_irq = MAINBUSCF_IRQ_DEFAULT;
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} else {
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mb.mb_iobase = cf->cf_loc[MAINBUSCF_BASE] + IO_CONF_BASE;
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mb.mb_iosize = 0;
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mb.mb_drq = cf->cf_loc[MAINBUSCF_DACK];
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mb.mb_irq = cf->cf_loc[MAINBUSCF_IRQ];
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}
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mb.mb_iot = sc->sc_iot;
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tryagain = 0;
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if ((*cf->cf_attach->ca_match)(parent, cf, &mb) > 0) {
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config_attach(parent, cf, &mb, vidcprint);
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/* tryagain = (cf->cf_fstate == FSTATE_STAR);*/
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}
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} while (tryagain);
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return (0);
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}
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/*
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* vidcattach()
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*
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* Configure all the child devices of the VIDC
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*/
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static void
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vidcattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct vidc20_softc *sc = (struct vidc20_softc *)self;
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struct mainbus_attach_args *mb = aux;
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sc->sc_iot = mb->mb_iot;
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printf(": vidc20\n");
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switch (IOMD_ID) {
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case ARM7500_IOC_ID:
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case ARM7500FE_IOC_ID:
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vidc_fref = 32000000;
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break;
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default: /* XXX default? */
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case RPC600_IOMD_ID:
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vidc_fref = 24000000;
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break;
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};
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config_search(vidcsearch, self, NULL);
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}
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/* End of vidc20.c */
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