/*      $NetBSD: mq200_pci.c,v 1.6 2023/12/20 14:50:02 thorpej Exp $    */

/*-
* Copyright (c) 2002 TAKEMURA Shin
* 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. The name of the author may not 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.
*
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mq200_pci.c,v 1.6 2023/12/20 14:50:02 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>

#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciio.h>

#include <hpcmips/dev/mq200var.h>

struct mq200_pci_softc {
       struct mq200_softc      sc_mq200;
       pci_chipset_tag_t sc_pc;
       pcitag_t sc_pcitag;
};

int     mq200_pci_match(device_t, cfdata_t, void *);
void    mq200_pci_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(mqvideo_pci, sizeof(struct mq200_pci_softc),
   mq200_pci_match, mq200_pci_attach, NULL, NULL);

int
mq200_pci_match(device_t parent, cfdata_t match, void *aux)
{
       struct pci_attach_args *pa = aux;

       /* check vendor id and product id */
       if (pa->pa_id !=
           PCI_ID_CODE(PCI_VENDOR_MEDIAQ, PCI_PRODUCT_MEDIAQ_MQ200))
               return (0);

       return (1);
}

void
mq200_pci_attach(device_t parent, device_t self, void *aux)
{
       struct mq200_pci_softc *psc = device_private(self);
       struct mq200_softc *sc = &psc->sc_mq200;
       struct pci_attach_args *pa = aux;
       int res;

       sc->sc_dev = self;
       psc->sc_pc = pa->pa_pc;
       psc->sc_pcitag = pa->pa_tag;

       /* check whether it is disabled by firmware */
       if (!(pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) &
           PCI_COMMAND_MEM_ENABLE)) {
               printf("%s: disabled\n", device_xname(sc->sc_dev));
               return;
       }

       /* Base Address Register 0: base address of control registers */
       res = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM,
           0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL);
       if (res != 0) {
               printf("%s: can't map registers\n", device_xname(sc->sc_dev));
               return;
       }

       /* Base Address Register 1: base address of frame buffer */
       res = pci_mapreg_info(psc->sc_pc, psc->sc_pcitag, PCI_MAPREG_START+4,
           PCI_MAPREG_TYPE_MEM, &sc->sc_baseaddr, NULL, NULL);
       if (res != 0) {
               printf("%s: can't map frame buffer\n", device_xname(sc->sc_dev));
               return;
       }

       mq200_attach(sc);
}