NetBSD/sys/dev/pci/atppc_puc.c

/* $NetBSD: atppc_puc.c,v 1.1 2004/01/25 11:50:51 jdolecek Exp $ */

/*-
 * Copyright (c) 2004 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jaromir Dolecek.
 *
 * 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 the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 "opt_atppc.h"

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: atppc_puc.c,v 1.1 2004/01/25 11:50:51 jdolecek Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/termios.h>

#include <machine/bus.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pucvar.h>

#include <dev/ic/atppcvar.h>

static int	atppc_puc_match(struct device *, struct cfdata *, void *);
static void	atppc_puc_attach(struct device *, struct device *, void *);

CFATTACH_DECL(atppc_puc, sizeof(struct atppc_softc), atppc_puc_match,
    atppc_puc_attach, NULL, NULL);

static int atppc_puc_dma_start(struct atppc_softc *, void *, u_int, 
	u_int8_t);
static int atppc_puc_dma_finish(struct atppc_softc *);
static int atppc_puc_dma_abort(struct atppc_softc *);
static int atppc_puc_dma_malloc(struct device *, caddr_t *, bus_addr_t *, 
	bus_size_t);
static void atppc_puc_dma_free(struct device *, caddr_t *, bus_addr_t *, 
	bus_size_t);

/*
 * atppc_acpi_match: autoconf(9) match routine
 */
static int
atppc_puc_match(struct device *parent, struct cfdata *match, void *aux)
{
	struct puc_attach_args *aa = aux;

	/*
	 * Locators already matched, just check the type.
	 */
	if (aa->type != PUC_PORT_TYPE_LPT)
		return (0);

	return (1);
}

static void
atppc_puc_attach(struct device *parent, struct device *self, void *aux)
{
	struct atppc_softc *sc = (struct atppc_softc *) self;
	struct puc_attach_args *aa = aux;
	const char *intrstr;

	sc->sc_dev_ok = ATPPC_NOATTACH;

	printf(": AT Parallel Port\n");

	/* Attach */
	sc->sc_iot = aa->t;
	sc->sc_ioh = aa->h;
	sc->sc_dmat = aa->dmat;
	sc->sc_has = 0;

	intrstr = pci_intr_string(aa->pc, aa->intrhandle);
	sc->sc_ieh = pci_intr_establish(aa->pc, aa->intrhandle, IPL_TTY,
	    atppcintr, sc);
	if (sc->sc_ieh == NULL) {
		printf("%s: couldn't establish interrupt",
		    sc->sc_dev.dv_xname);
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
	sc->sc_has |= ATPPC_HAS_INTR;

	/* setup DMA hooks */
	/* XXX setup dma maps */
	sc->sc_dma_start = atppc_puc_dma_start;
	sc->sc_dma_finish = atppc_puc_dma_finish;
	sc->sc_dma_abort = atppc_puc_dma_abort;
	sc->sc_dma_malloc = atppc_puc_dma_malloc;
	sc->sc_dma_free = atppc_puc_dma_free;
	//sc->sc_has |= ATPPC_HAS_DMA;

	/* Finished attach */
	sc->sc_dev_ok = ATPPC_ATTACHED;

	/* Run soft configuration attach */
	atppc_sc_attach(sc);
}

/* Start DMA operation over PCI bus */
static int 
atppc_puc_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes,
	u_int8_t mode)
{

	/* Nothing to do */
	return (0);
}

/* Stop DMA operation over PCI bus */
static int 
atppc_puc_dma_finish(struct atppc_softc * lsc)
{

	/* Nothing to do */
	return (0);
}

/* Abort DMA operation over PCI bus */
int 
atppc_puc_dma_abort(struct atppc_softc * lsc)
{

	/* Nothing to do */
	return (0);
}

/* Allocate memory for DMA over PCI bus */ 
int
atppc_puc_dma_malloc(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr,
	bus_size_t size)
{
	return 0;
/*
	struct atppc_puc_softc * sc = (struct atppc_acpi_softc *) dev;

	return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size);
*/
}

/* Free memory allocated by atppc_isa_dma_malloc() */ 
void 
atppc_puc_dma_free(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, 
	bus_size_t size)
{
/*
	struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev;

	return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size);
*/
}