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/*
* Copyright (C) 2003
* Hidetoshi Shimokawa. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by Hidetoshi Shimokawa.
*
* 4. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* $Id: dcons_crom.c,v 1.8 2003/10/23 15:47:21 simokawa Exp $
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <machine/bus.h>
#ifdef __DragonFly__
#include <bus/firewire/firewire.h>
#include <bus/firewire/firewirereg.h>
#include <bus/firewire/iec13213.h>
#include "dcons.h"
#include "dcons_os.h"
#else
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/iec13213.h>
#include <dev/dcons/dcons.h>
#include <dev/dcons/dcons_os.h>
#endif
#include <sys/cons.h>
static bus_addr_t dcons_paddr;
#if __FreeBSD_version >= 500000
static int force_console = 1;
TUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console);
#endif
#ifndef CSRVAL_VENDOR_PRIVATE
#define NEED_NEW_DRIVER
#endif
#define ADDR_HI(x) (((x) >> 24) & 0xffffff)
#define ADDR_LO(x) ((x) & 0xffffff)
struct dcons_crom_softc {
struct firewire_dev_comm fd;
struct crom_chunk unit;
struct crom_chunk spec;
struct crom_chunk ver;
bus_dma_tag_t dma_tag;
bus_dmamap_t dma_map;
bus_addr_t bus_addr;
};
static void
dcons_crom_identify(driver_t *driver, device_t parent)
{
BUS_ADD_CHILD(parent, 0, "dcons_crom", device_get_unit(parent));
}
static int
dcons_crom_probe(device_t dev)
{
device_t pa;
pa = device_get_parent(dev);
if(device_get_unit(dev) != device_get_unit(pa)){
return(ENXIO);
}
device_set_desc(dev, "dcons configuration ROM");
return (0);
}
#ifndef NEED_NEW_DRIVER
static void
dcons_crom_post_busreset(void *arg)
{
struct dcons_crom_softc *sc;
struct crom_src *src;
struct crom_chunk *root;
sc = (struct dcons_crom_softc *) arg;
src = sc->fd.fc->crom_src;
root = sc->fd.fc->crom_root;
bzero(&sc->unit, sizeof(struct crom_chunk));
crom_add_chunk(src, root, &sc->unit, CROM_UDIR);
crom_add_entry(&sc->unit, CSRKEY_SPEC, CSRVAL_VENDOR_PRIVATE);
crom_add_simple_text(src, &sc->unit, &sc->spec, "FreeBSD");
crom_add_entry(&sc->unit, CSRKEY_VER, DCONS_CSR_VAL_VER);
crom_add_simple_text(src, &sc->unit, &sc->ver, "dcons");
crom_add_entry(&sc->unit, DCONS_CSR_KEY_HI, ADDR_HI(dcons_paddr));
crom_add_entry(&sc->unit, DCONS_CSR_KEY_LO, ADDR_LO(dcons_paddr));
}
#endif
static void
dmamap_cb(void *arg, bus_dma_segment_t *segments, int seg, int error)
{
struct dcons_crom_softc *sc;
if (error)
printf("dcons_dmamap_cb: error=%d\n", error);
sc = (struct dcons_crom_softc *)arg;
sc->bus_addr = segments[0].ds_addr;
bus_dmamap_sync(sc->dma_tag, sc->dma_map, BUS_DMASYNC_PREWRITE);
device_printf(sc->fd.dev,
#if __FreeBSD_version < 500000
"bus_addr 0x%x\n", sc->bus_addr);
#else
"bus_addr 0x%jx\n", (uintmax_t)sc->bus_addr);
#endif
if (dcons_paddr != 0) {
/* XXX */
device_printf(sc->fd.dev, "dcons_paddr is already set\n");
return;
}
dcons_conf->dma_tag = sc->dma_tag;
dcons_conf->dma_map = sc->dma_map;
dcons_paddr = sc->bus_addr;
#if __FreeBSD_version >= 500000
/* Force to be the high-level console */
if (force_console)
cnselect(dcons_conf->cdev);
#endif
}
static int
dcons_crom_attach(device_t dev)
{
#ifdef NEED_NEW_DRIVER
printf("dcons_crom: you need newer firewire driver\n");
return (-1);
#else
struct dcons_crom_softc *sc;
sc = (struct dcons_crom_softc *) device_get_softc(dev);
sc->fd.fc = device_get_ivars(dev);
sc->fd.dev = dev;
sc->fd.post_explore = NULL;
sc->fd.post_busreset = (void *) dcons_crom_post_busreset;
/* map dcons buffer */
bus_dma_tag_create(
/*parent*/ sc->fd.fc->dmat,
/*alignment*/ sizeof(u_int32_t),
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/ dcons_conf->size,
/*nsegments*/ 1,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ BUS_DMA_ALLOCNOW,
#if __FreeBSD_version >= 501102
/*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant,
#endif
&sc->dma_tag);
bus_dmamap_create(sc->dma_tag, 0, &sc->dma_map);
bus_dmamap_load(sc->dma_tag, sc->dma_map,
(void *)dcons_conf->buf, dcons_conf->size,
dmamap_cb, sc, 0);
return (0);
#endif
}
static int
dcons_crom_detach(device_t dev)
{
struct dcons_crom_softc *sc;
sc = (struct dcons_crom_softc *) device_get_softc(dev);
sc->fd.post_busreset = NULL;
/* XXX */
if (dcons_conf->dma_tag == sc->dma_tag)
dcons_conf->dma_tag = NULL;
bus_dmamap_unload(sc->dma_tag, sc->dma_map);
bus_dmamap_destroy(sc->dma_tag, sc->dma_map);
bus_dma_tag_destroy(sc->dma_tag);
return 0;
}
static devclass_t dcons_crom_devclass;
static device_method_t dcons_crom_methods[] = {
/* device interface */
DEVMETHOD(device_identify, dcons_crom_identify),
DEVMETHOD(device_probe, dcons_crom_probe),
DEVMETHOD(device_attach, dcons_crom_attach),
DEVMETHOD(device_detach, dcons_crom_detach),
{ 0, 0 }
};
static driver_t dcons_crom_driver = {
"dcons_crom",
dcons_crom_methods,
sizeof(struct dcons_crom_softc),
};
DRIVER_MODULE(dcons_crom, firewire, dcons_crom_driver,
dcons_crom_devclass, 0, 0);
MODULE_VERSION(dcons_crom, 1);
MODULE_DEPEND(dcons_crom, dcons,
DCONS_VERSION, DCONS_VERSION, DCONS_VERSION);
MODULE_DEPEND(dcons_crom, firewire, 1, 1, 1);
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