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empb.c revision 1.7.2.2
      1  1.7.2.2      tls /*	$NetBSD: empb.c,v 1.7.2.2 2013/02/25 00:28:22 tls Exp $ */
      2      1.1  rkujawa 
      3      1.1  rkujawa /*-
      4      1.1  rkujawa  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      5      1.1  rkujawa  * All rights reserved.
      6      1.1  rkujawa  *
      7      1.1  rkujawa  * This code is derived from software contributed to The NetBSD Foundation
      8      1.1  rkujawa  * by Radoslaw Kujawa.
      9      1.1  rkujawa  *
     10      1.1  rkujawa  * Redistribution and use in source and binary forms, with or without
     11      1.1  rkujawa  * modification, are permitted provided that the following conditions
     12      1.1  rkujawa  * are met:
     13      1.1  rkujawa  * 1. Redistributions of source code must retain the above copyright
     14      1.1  rkujawa  *    notice, this list of conditions and the following disclaimer.
     15      1.1  rkujawa  * 2. Redistributions in binary form must reproduce the above copyright
     16      1.1  rkujawa  *    notice, this list of conditions and the following disclaimer in the
     17      1.1  rkujawa  *    documentation and/or other materials provided with the distribution.
     18      1.1  rkujawa  *
     19      1.1  rkujawa  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20      1.1  rkujawa  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21      1.1  rkujawa  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22      1.1  rkujawa  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23      1.1  rkujawa  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24      1.1  rkujawa  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25      1.1  rkujawa  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26      1.1  rkujawa  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27      1.1  rkujawa  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28      1.1  rkujawa  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29      1.1  rkujawa  * POSSIBILITY OF SUCH DAMAGE.
     30      1.1  rkujawa  */
     31      1.1  rkujawa 
     32      1.1  rkujawa /* Elbox Mediator PCI bridge driver. Currently supports Mediator 1200 models.*/
     33      1.1  rkujawa 
     34      1.1  rkujawa #include <sys/types.h>
     35      1.1  rkujawa #include <sys/param.h>
     36      1.1  rkujawa #include <sys/time.h>
     37      1.1  rkujawa #include <sys/systm.h>
     38      1.1  rkujawa #include <sys/errno.h>
     39      1.1  rkujawa #include <sys/device.h>
     40      1.1  rkujawa #include <sys/malloc.h>
     41      1.1  rkujawa #include <sys/extent.h>
     42      1.1  rkujawa #include <sys/kmem.h>
     43      1.1  rkujawa 
     44      1.1  rkujawa #include <uvm/uvm_extern.h>
     45      1.1  rkujawa 
     46      1.1  rkujawa #include <machine/bus.h>
     47      1.1  rkujawa #include <machine/cpu.h>
     48      1.1  rkujawa 
     49      1.1  rkujawa #include <amiga/dev/zbusvar.h>
     50      1.1  rkujawa #include <amiga/pci/empbreg.h>
     51      1.3  rkujawa #include <amiga/pci/empbvar.h>
     52      1.1  rkujawa #include <amiga/pci/emmemvar.h>
     53  1.7.2.2      tls #include <amiga/pci/empmvar.h>
     54      1.1  rkujawa 
     55      1.1  rkujawa #include <dev/pci/pciconf.h>
     56      1.1  rkujawa 
     57      1.1  rkujawa #include "opt_pci.h"
     58      1.1  rkujawa 
     59      1.7  rkujawa /*#define EMPB_DEBUG 1 */
     60      1.1  rkujawa 
     61      1.1  rkujawa #define	PCI_CONF_LOCK(s)	(s) = splhigh()
     62      1.1  rkujawa #define	PCI_CONF_UNLOCK(s)	splx((s))
     63      1.1  rkujawa 
     64      1.2  rkujawa #define WINDOW_LOCK(s)		(s) = splhigh()
     65      1.2  rkujawa #define WINDOW_UNLOCK(s)	splx((s))
     66      1.2  rkujawa 
     67  1.7.2.1      tls static int	empb_match(device_t, cfdata_t, void *);
     68  1.7.2.1      tls static void	empb_attach(device_t, device_t, void *);
     69  1.7.2.1      tls static void	empb_callback(device_t);
     70      1.1  rkujawa 
     71  1.7.2.2      tls static void	empb_empm_attach(struct empb_softc *sc);
     72  1.7.2.2      tls static int	empb_empm_print(void *aux, const char *pnp);
     73  1.7.2.2      tls 
     74  1.7.2.1      tls static void	empb_find_mem(struct empb_softc *);
     75  1.7.2.1      tls static void	empb_switch_bridge(struct empb_softc *, uint8_t);
     76  1.7.2.1      tls static void	empb_intr_enable(struct empb_softc *);
     77      1.1  rkujawa 
     78      1.1  rkujawa pcireg_t	empb_pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
     79      1.1  rkujawa void		empb_pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
     80  1.7.2.1      tls int		empb_pci_bus_maxdevs(pci_chipset_tag_t, int);
     81  1.7.2.1      tls void		empb_pci_attach_hook(device_t, device_t,
     82  1.7.2.1      tls 		    struct pcibus_attach_args *);
     83  1.7.2.1      tls pcitag_t	empb_pci_make_tag(pci_chipset_tag_t, int, int, int);
     84  1.7.2.1      tls void		empb_pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
     85  1.7.2.1      tls 		    int *, int *, int *);
     86  1.7.2.1      tls int		empb_pci_intr_map(const struct pci_attach_args *,
     87  1.7.2.1      tls 		    pci_intr_handle_t *);
     88  1.7.2.1      tls const struct evcnt * empb_pci_intr_evcnt(pci_chipset_tag_t,
     89  1.7.2.1      tls 		    pci_intr_handle_t);
     90  1.7.2.1      tls int		empb_pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
     91      1.1  rkujawa 
     92      1.1  rkujawa CFATTACH_DECL_NEW(empb, sizeof(struct empb_softc),
     93      1.1  rkujawa     empb_match, empb_attach, NULL, NULL);
     94      1.1  rkujawa 
     95      1.1  rkujawa static int
     96      1.1  rkujawa empb_match(device_t parent, cfdata_t cf, void *aux)
     97      1.1  rkujawa {
     98      1.1  rkujawa 	struct zbus_args *zap;
     99      1.1  rkujawa 
    100      1.1  rkujawa 	zap = aux;
    101      1.1  rkujawa 
    102      1.1  rkujawa 	if (zap->manid != ZORRO_MANID_ELBOX)
    103      1.1  rkujawa 		return 0;
    104      1.1  rkujawa 
    105      1.1  rkujawa 	switch (zap->prodid) {
    106      1.1  rkujawa 	case ZORRO_PRODID_MED1K2:
    107      1.1  rkujawa 	case ZORRO_PRODID_MED1K2SX:
    108      1.1  rkujawa 	case ZORRO_PRODID_MED1K2LT2:
    109      1.1  rkujawa 	case ZORRO_PRODID_MED1K2LT4:
    110      1.1  rkujawa 	case ZORRO_PRODID_MED1K2TX:
    111  1.7.2.2      tls 	case ZORRO_PRODID_MEDZIV:	/* ZIV untested! */
    112      1.1  rkujawa 		return 1;
    113      1.1  rkujawa 	}
    114      1.1  rkujawa 
    115      1.1  rkujawa 	return 0;
    116      1.1  rkujawa }
    117      1.1  rkujawa 
    118      1.1  rkujawa 
    119      1.1  rkujawa static void
    120      1.1  rkujawa empb_attach(device_t parent, device_t self, void *aux)
    121      1.1  rkujawa {
    122      1.1  rkujawa 	struct empb_softc *sc;
    123      1.1  rkujawa 	struct zbus_args *zap;
    124      1.1  rkujawa 
    125      1.1  rkujawa 	volatile char *ba;
    126      1.1  rkujawa 
    127      1.1  rkujawa 	zap = aux;
    128      1.1  rkujawa 	sc = device_private(self);
    129      1.1  rkujawa 	sc->sc_dev = self;
    130      1.1  rkujawa 	ba = zap->va;
    131      1.1  rkujawa 
    132  1.7.2.2      tls 	sc->model = zap->prodid;
    133  1.7.2.2      tls 
    134  1.7.2.2      tls 	switch (sc->model) {
    135      1.1  rkujawa 	case ZORRO_PRODID_MED1K2:
    136      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI 1200\n");
    137      1.1  rkujawa 		break;
    138      1.1  rkujawa 	case ZORRO_PRODID_MED1K2SX:
    139      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI 1200 SX\n");
    140      1.1  rkujawa 		break;
    141      1.1  rkujawa 	case ZORRO_PRODID_MED1K2LT2:
    142      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI 1200 LT2\n");
    143      1.1  rkujawa 		break;
    144      1.1  rkujawa 	case ZORRO_PRODID_MED1K2LT4:
    145      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI 1200 LT4\n");
    146      1.1  rkujawa 		break;
    147      1.1  rkujawa 	case ZORRO_PRODID_MED1K2TX:
    148      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI 1200 TX\n");
    149      1.1  rkujawa 		break;
    150      1.1  rkujawa 	default:
    151      1.1  rkujawa 		aprint_normal(": ELBOX Mediator PCI (unknown)\n");
    152      1.1  rkujawa 		break;
    153      1.1  rkujawa 	}
    154      1.1  rkujawa 
    155      1.1  rkujawa 	/* Setup bus space mappings. */
    156      1.1  rkujawa 	sc->pci_confio_area.base = (bus_addr_t) ba + EMPB_BRIDGE_OFF;
    157      1.1  rkujawa 	sc->pci_confio_area.absm = &amiga_bus_stride_1swap;
    158      1.1  rkujawa 
    159      1.1  rkujawa 	sc->setup_area.base = (bus_addr_t) ba + EMPB_SETUP_OFF;
    160      1.1  rkujawa 	sc->setup_area.absm = &amiga_bus_stride_1;
    161      1.1  rkujawa 
    162      1.1  rkujawa 	/*
    163      1.1  rkujawa 	 * Defer everything until later, we need to wait for possible
    164      1.1  rkujawa 	 * emmem attachments.
    165      1.1  rkujawa 	 */
    166      1.1  rkujawa 
    167      1.1  rkujawa 	config_defer(self, empb_callback);
    168      1.1  rkujawa }
    169      1.1  rkujawa 
    170      1.1  rkujawa static void
    171      1.1  rkujawa empb_callback(device_t self) {
    172      1.1  rkujawa 
    173      1.1  rkujawa 	struct empb_softc *sc;
    174      1.1  rkujawa 	pci_chipset_tag_t pc;
    175      1.1  rkujawa 	struct pcibus_attach_args pba;
    176      1.4  rkujawa #ifdef PCI_NETBSD_CONFIGURE
    177      1.4  rkujawa 	struct extent *ioext, *memext;
    178      1.4  rkujawa #endif /* PCI_NETBSD_CONFIGURE */
    179      1.1  rkujawa 
    180      1.1  rkujawa 	sc = device_private(self);
    181      1.1  rkujawa 	pc = &sc->apc;
    182      1.1  rkujawa 
    183      1.1  rkujawa #ifdef EMPB_DEBUG
    184      1.1  rkujawa 	aprint_normal("empb: mapped setup %x->%x, conf/io %x->%x\n",
    185      1.1  rkujawa 	    kvtop((void*) sc->setup_area.base), sc->setup_area.base,
    186      1.1  rkujawa 	    kvtop((void*) sc->pci_confio_area.base), sc->pci_confio_area.base);
    187      1.1  rkujawa #endif
    188      1.1  rkujawa 
    189      1.1  rkujawa 	sc->pci_confio_t = &(sc->pci_confio_area);
    190      1.1  rkujawa 
    191      1.5  rkujawa 	/*
    192      1.5  rkujawa 	 * We should not map I/O space here, however we have no choice
    193      1.5  rkujawa 	 * since these addresses are shared between configuration space and
    194      1.5  rkujawa 	 * I/O space. Not really a problem on m68k, however on PPC...
    195      1.5  rkujawa 	 */
    196      1.1  rkujawa 	if (bus_space_map(sc->pci_confio_t, 0, EMPB_BRIDGE_SIZE, 0,
    197      1.1  rkujawa 	    &sc->pci_confio_h))
    198      1.1  rkujawa 		aprint_error_dev(self,
    199      1.1  rkujawa 		    "couldn't map PCI configuration & I/O space\n");
    200      1.1  rkujawa 
    201      1.1  rkujawa 	sc->apc.pci_conf_datat = sc->pci_confio_t;
    202      1.1  rkujawa 	sc->apc.pci_conf_datah = sc->pci_confio_h;
    203      1.1  rkujawa 
    204      1.1  rkujawa 	sc->setup_area_t = &(sc->setup_area);
    205      1.1  rkujawa 
    206      1.1  rkujawa 	if (bus_space_map(sc->setup_area_t, 0, EMPB_SETUP_SIZE, 0,
    207      1.1  rkujawa 	    &sc->setup_area_h))
    208      1.1  rkujawa 		aprint_error_dev(self,
    209      1.1  rkujawa 		    "couldn't map Mediator setup space\n");
    210      1.1  rkujawa 
    211      1.2  rkujawa 	empb_find_mem(sc);
    212      1.2  rkujawa 	if (sc->pci_mem_win_size == 0)
    213      1.2  rkujawa 		aprint_error_dev(self,
    214      1.2  rkujawa 		    "couldn't find memory space, check your WINDOW jumper\n");
    215      1.2  rkujawa 
    216      1.1  rkujawa 	/* Initialize the PCI chipset tag. */
    217      1.1  rkujawa 	sc->apc.pc_conf_v = (void*) pc;
    218      1.1  rkujawa 	sc->apc.pc_bus_maxdevs = empb_pci_bus_maxdevs;
    219      1.1  rkujawa 	sc->apc.pc_make_tag = amiga_pci_make_tag;
    220      1.1  rkujawa 	sc->apc.pc_decompose_tag = amiga_pci_decompose_tag;
    221      1.1  rkujawa 	sc->apc.pc_conf_read = empb_pci_conf_read;
    222      1.1  rkujawa 	sc->apc.pc_conf_write = empb_pci_conf_write;
    223      1.1  rkujawa 	sc->apc.pc_attach_hook = empb_pci_attach_hook;
    224      1.1  rkujawa 
    225      1.1  rkujawa 	sc->apc.pc_intr_map = empb_pci_intr_map;
    226      1.1  rkujawa 	sc->apc.pc_intr_string = amiga_pci_intr_string;
    227      1.1  rkujawa 	sc->apc.pc_intr_establish = amiga_pci_intr_establish;
    228      1.1  rkujawa 	sc->apc.pc_intr_disestablish = amiga_pci_intr_disestablish;
    229      1.1  rkujawa 
    230      1.5  rkujawa 	sc->apc.pc_conf_hook = empb_pci_conf_hook;
    231      1.1  rkujawa 	sc->apc.pc_conf_interrupt = amiga_pci_conf_interrupt;
    232      1.1  rkujawa 
    233      1.1  rkujawa 	sc->apc.cookie = sc;
    234      1.1  rkujawa 
    235      1.4  rkujawa #ifdef PCI_NETBSD_CONFIGURE
    236      1.4  rkujawa 	ioext = extent_create("empbio", 0, EMPB_BRIDGE_SIZE,
    237      1.4  rkujawa 	    NULL, 0, EX_NOWAIT);
    238      1.4  rkujawa 
    239      1.4  rkujawa 	memext = extent_create("empbmem", EMPB_MEM_BASE, EMPB_MEM_END,
    240      1.4  rkujawa 	    NULL, 0, EX_NOWAIT);
    241      1.4  rkujawa 
    242      1.4  rkujawa 	pci_configure_bus(pc, ioext, memext, NULL, 0, CACHELINE_SIZE);
    243      1.4  rkujawa 
    244      1.4  rkujawa 	extent_destroy(ioext);
    245      1.4  rkujawa 	extent_destroy(memext);
    246      1.4  rkujawa 
    247      1.4  rkujawa #endif /* PCI_NETBSD_CONFIGURE */
    248      1.4  rkujawa 
    249      1.1  rkujawa 	pba.pba_iot = &(sc->pci_confio_area);
    250      1.1  rkujawa 	pba.pba_dmat = NULL;
    251      1.1  rkujawa 	pba.pba_dmat64 = NULL;
    252      1.1  rkujawa 	pba.pba_pc = pc;
    253      1.1  rkujawa 	pba.pba_flags = PCI_FLAGS_IO_OKAY;
    254      1.1  rkujawa 
    255      1.2  rkujawa 	if(sc->pci_mem_win_size > 0) {
    256      1.2  rkujawa 		pba.pba_memt = &(sc->pci_mem_win);
    257      1.1  rkujawa 		pba.pba_flags |= PCI_FLAGS_MEM_OKAY;
    258      1.2  rkujawa 	} else
    259      1.1  rkujawa 		pba.pba_memt = NULL;
    260      1.1  rkujawa 
    261      1.1  rkujawa 	pba.pba_bus = 0;
    262      1.1  rkujawa 	pba.pba_bridgetag = NULL;
    263      1.1  rkujawa 
    264  1.7.2.2      tls 	/* Attach power management on SX and TX models. */
    265  1.7.2.2      tls 	switch (sc->model) {
    266  1.7.2.2      tls 	case ZORRO_PRODID_MED1K2SX:
    267  1.7.2.2      tls 	case ZORRO_PRODID_MED1K2TX:
    268  1.7.2.2      tls 		empb_empm_attach(sc);
    269  1.7.2.2      tls 	default:
    270  1.7.2.2      tls 		break;
    271  1.7.2.2      tls 	}
    272  1.7.2.2      tls 
    273      1.5  rkujawa 	empb_intr_enable(sc);
    274      1.5  rkujawa 
    275      1.1  rkujawa 	config_found_ia(self, "pcibus", &pba, pcibusprint);
    276      1.1  rkujawa }
    277      1.1  rkujawa 
    278  1.7.2.2      tls static void
    279  1.7.2.2      tls empb_empm_attach(struct empb_softc *sc)
    280  1.7.2.2      tls {
    281  1.7.2.2      tls 	struct empm_attach_args aa;
    282  1.7.2.2      tls 	aa.setup_area_t = sc->setup_area_t;
    283  1.7.2.2      tls 
    284  1.7.2.2      tls 	config_found_ia(sc->sc_dev, "empmdev", &aa, empb_empm_print);
    285  1.7.2.2      tls }
    286  1.7.2.2      tls 
    287  1.7.2.2      tls static int
    288  1.7.2.2      tls empb_empm_print(void *aux, const char *pnp)
    289  1.7.2.2      tls {
    290  1.7.2.2      tls 	if (pnp)
    291  1.7.2.2      tls 		aprint_normal("empm at %s", pnp);
    292  1.7.2.2      tls 
    293  1.7.2.2      tls 	return UNCONF;
    294  1.7.2.2      tls }
    295  1.7.2.2      tls 
    296      1.5  rkujawa static void
    297      1.5  rkujawa empb_intr_enable(struct empb_softc *sc)
    298      1.5  rkujawa {
    299      1.5  rkujawa 	bus_space_write_1(sc->setup_area_t, sc->setup_area_h,
    300      1.5  rkujawa 	    EMPB_SETUP_INTR_OFF, EMPB_INTR_ENABLE);
    301      1.5  rkujawa }
    302      1.5  rkujawa 
    303      1.1  rkujawa /*
    304      1.1  rkujawa  * Switch between configuration space and I/O space.
    305      1.1  rkujawa  */
    306      1.2  rkujawa static void
    307      1.1  rkujawa empb_switch_bridge(struct empb_softc *sc, uint8_t mode)
    308      1.1  rkujawa {
    309      1.1  rkujawa 	bus_space_write_1(sc->setup_area_t, sc->setup_area_h,
    310      1.1  rkujawa 	    EMPB_SETUP_BRIDGE_OFF, mode);
    311      1.1  rkujawa }
    312      1.1  rkujawa 
    313      1.1  rkujawa 
    314      1.1  rkujawa /*
    315      1.1  rkujawa  * Try to find a (optional) memory window board.
    316      1.1  rkujawa  */
    317      1.2  rkujawa static void
    318      1.1  rkujawa empb_find_mem(struct empb_softc *sc)
    319      1.1  rkujawa {
    320      1.1  rkujawa 	device_t memdev;
    321      1.1  rkujawa 	struct emmem_softc *mem_sc;
    322      1.1  rkujawa 
    323      1.1  rkujawa 	memdev = device_find_by_xname("emmem0");
    324      1.2  rkujawa 	sc->pci_mem_win_size = 0;
    325      1.1  rkujawa 
    326      1.2  rkujawa 	if(memdev == NULL) {
    327      1.2  rkujawa 		return;
    328      1.2  rkujawa 	}
    329      1.1  rkujawa 
    330      1.1  rkujawa 	mem_sc = device_private(memdev);
    331      1.1  rkujawa 
    332      1.2  rkujawa 	sc->pci_mem_win.base = (bus_addr_t) mem_sc->sc_base;
    333      1.5  rkujawa 	sc->pci_mem_win.absm = &empb_bus_swap;
    334      1.2  rkujawa 	sc->pci_mem_win_size = mem_sc->sc_size;
    335      1.5  rkujawa 	sc->pci_mem_win_t = &sc->pci_mem_win;
    336      1.2  rkujawa 
    337      1.2  rkujawa 	if(sc->pci_mem_win_size == 8*1024*1024)
    338      1.2  rkujawa 		sc->pci_mem_win_mask = EMPB_WINDOW_MASK_8M;
    339      1.2  rkujawa 	else if(sc->pci_mem_win_size == 4*1024*1024)
    340      1.2  rkujawa 		sc->pci_mem_win_mask = EMPB_WINDOW_MASK_4M;
    341      1.2  rkujawa 	else /* disable anyway */
    342      1.2  rkujawa 		sc->pci_mem_win_size = 0;
    343      1.2  rkujawa 
    344      1.2  rkujawa #ifdef EMPB_DEBUG
    345      1.2  rkujawa 	aprint_normal("empb: found %x b window at %p, switch mask %x\n",
    346      1.2  rkujawa 	    sc->pci_mem_win_size, (void*) sc->pci_mem_win.base,
    347      1.2  rkujawa 	    sc->pci_mem_win_mask);
    348      1.2  rkujawa #endif /* EMPB_DEBUG */
    349      1.2  rkujawa 
    350      1.2  rkujawa }
    351      1.2  rkujawa 
    352      1.2  rkujawa /*
    353      1.5  rkujawa  * Switch memory window position. Return PCI mem address seen at the beginning
    354      1.5  rkujawa  * of window.
    355      1.2  rkujawa  */
    356      1.5  rkujawa bus_addr_t
    357      1.2  rkujawa empb_switch_window(struct empb_softc *sc, bus_addr_t address)
    358      1.2  rkujawa {
    359      1.2  rkujawa 	int s;
    360      1.2  rkujawa 	uint16_t win_reg;
    361      1.5  rkujawa #ifdef EMPB_DEBUG
    362      1.5  rkujawa 	uint16_t rwin_reg;
    363      1.5  rkujawa #endif /* EMPB_DEBUG */
    364      1.2  rkujawa 
    365      1.2  rkujawa 	WINDOW_LOCK(s);
    366      1.2  rkujawa 
    367      1.2  rkujawa 	win_reg = bswap16((address >> EMPB_WINDOW_SHIFT)
    368      1.2  rkujawa 	    & sc->pci_mem_win_mask);
    369      1.2  rkujawa 
    370      1.2  rkujawa 	bus_space_write_2(sc->setup_area_t, sc->setup_area_h,
    371      1.2  rkujawa 	    EMPB_SETUP_WINDOW_OFF, win_reg);
    372      1.2  rkujawa 
    373      1.2  rkujawa 	/* store window pos, like: sc->pci_mem_win_pos = win_reg ? */
    374      1.2  rkujawa 
    375      1.5  rkujawa #ifdef EMPB_DEBUG
    376      1.5  rkujawa 	rwin_reg = bus_space_read_2(sc->setup_area_t, sc->setup_area_h,
    377      1.2  rkujawa 	    EMPB_SETUP_WINDOW_OFF);
    378      1.2  rkujawa 
    379      1.5  rkujawa 	aprint_normal("empb: access to %p window switch to %x => reg now %x\n",
    380      1.5  rkujawa 	    (void*) address, win_reg, rwin_reg);
    381      1.5  rkujawa #endif /* EMPB_DEBUG */
    382      1.5  rkujawa 
    383      1.2  rkujawa 	WINDOW_UNLOCK(s);
    384      1.2  rkujawa 
    385      1.5  rkujawa 	return (bus_addr_t)((bswap16(win_reg)) << EMPB_WINDOW_SHIFT);
    386      1.2  rkujawa }
    387      1.1  rkujawa 
    388      1.1  rkujawa 
    389      1.1  rkujawa pcireg_t
    390      1.1  rkujawa empb_pci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
    391      1.1  rkujawa {
    392      1.1  rkujawa 	uint32_t data;
    393      1.1  rkujawa 	uint32_t bus, dev, func;
    394      1.1  rkujawa 	struct empb_softc *sc;
    395      1.1  rkujawa 	int s;
    396      1.1  rkujawa 
    397      1.1  rkujawa 	sc = pc->cookie;
    398      1.1  rkujawa 
    399      1.1  rkujawa 	pci_decompose_tag(pc, tag, &bus, &dev, &func);
    400      1.1  rkujawa 
    401      1.1  rkujawa 	PCI_CONF_LOCK(s);
    402      1.1  rkujawa 
    403      1.1  rkujawa 	empb_switch_bridge(sc, BRIDGE_CONF);
    404      1.1  rkujawa 
    405      1.1  rkujawa 	data = bus_space_read_4(pc->pci_conf_datat, pc->pci_conf_datah,
    406      1.1  rkujawa 	    EMPB_CONF_DEV_STRIDE*dev + EMPB_CONF_FUNC_STRIDE*func + reg);
    407      1.1  rkujawa #ifdef EMPB_DEBUG_CONF
    408      1.1  rkujawa 	aprint_normal("empb conf read va: %lx, bus: %d, dev: %d, "
    409      1.1  rkujawa 	    "func: %d, reg: %d -r-> data %x\n",
    410      1.1  rkujawa 	    pc->pci_conf_datah, bus, dev, func, reg, data);
    411      1.1  rkujawa #endif /* EMPB_DEBUG_CONF */
    412      1.1  rkujawa 
    413      1.1  rkujawa 	empb_switch_bridge(sc, BRIDGE_IO);
    414      1.1  rkujawa 
    415      1.1  rkujawa 	PCI_CONF_UNLOCK(s);
    416      1.1  rkujawa 
    417      1.1  rkujawa 	return data;
    418      1.1  rkujawa }
    419      1.1  rkujawa 
    420      1.1  rkujawa void
    421      1.1  rkujawa empb_pci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t val)
    422      1.1  rkujawa {
    423      1.1  rkujawa 	uint32_t bus, dev, func;
    424      1.1  rkujawa 	struct empb_softc *sc;
    425      1.1  rkujawa 	int s;
    426      1.1  rkujawa 
    427      1.1  rkujawa 	sc = pc->cookie;
    428      1.1  rkujawa 
    429      1.1  rkujawa 	pci_decompose_tag(pc, tag, &bus, &dev, &func);
    430      1.1  rkujawa 
    431      1.1  rkujawa 	PCI_CONF_LOCK(s);
    432      1.1  rkujawa 
    433      1.1  rkujawa 	empb_switch_bridge(sc, BRIDGE_CONF);
    434      1.1  rkujawa 
    435      1.1  rkujawa 	bus_space_write_4(pc->pci_conf_datat, pc->pci_conf_datah,
    436      1.1  rkujawa 	    EMPB_CONF_DEV_STRIDE*dev + EMPB_CONF_FUNC_STRIDE*func + reg, val);
    437      1.1  rkujawa #ifdef EMPB_DEBUG_CONF
    438      1.1  rkujawa 	aprint_normal("empb conf write va: %lx, bus: %d, dev: %d, "
    439      1.1  rkujawa 	    "func: %d, reg: %d -w-> data %x\n",
    440      1.1  rkujawa 	    pc->pci_conf_datah, bus, dev, func, reg, val);
    441      1.1  rkujawa #endif /* EMPB_DEBUG_CONF */
    442      1.1  rkujawa 	empb_switch_bridge(sc, BRIDGE_IO);
    443      1.1  rkujawa 
    444      1.1  rkujawa 	PCI_CONF_UNLOCK(s);
    445      1.1  rkujawa }
    446      1.1  rkujawa 
    447      1.1  rkujawa int
    448      1.1  rkujawa empb_pci_bus_maxdevs(pci_chipset_tag_t pc, int busno)
    449      1.1  rkujawa {
    450      1.1  rkujawa 	return 6; /* no Mediator with more than 6 slots? */
    451      1.1  rkujawa }
    452      1.1  rkujawa 
    453      1.1  rkujawa void
    454  1.7.2.1      tls empb_pci_attach_hook(device_t parent, device_t self,
    455      1.1  rkujawa     struct pcibus_attach_args *pba)
    456      1.1  rkujawa {
    457      1.1  rkujawa }
    458      1.1  rkujawa 
    459      1.1  rkujawa int
    460      1.1  rkujawa empb_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
    461      1.1  rkujawa {
    462      1.1  rkujawa 	/* TODO: add sanity checking */
    463      1.1  rkujawa 
    464      1.1  rkujawa 	*ihp = EMPB_INT;
    465      1.1  rkujawa 	return 0;
    466      1.1  rkujawa }
    467      1.1  rkujawa 
    468      1.1  rkujawa const struct evcnt *
    469      1.1  rkujawa empb_pci_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih)
    470      1.1  rkujawa {
    471      1.1  rkujawa 	/* TODO: implement */
    472      1.1  rkujawa 	return NULL;
    473      1.1  rkujawa }
    474      1.1  rkujawa 
    475      1.5  rkujawa int
    476      1.5  rkujawa empb_pci_conf_hook(pci_chipset_tag_t pct, int bus, int dev, int func,
    477      1.5  rkujawa     pcireg_t id)
    478      1.5  rkujawa {
    479      1.5  rkujawa 
    480      1.5  rkujawa 	/*
    481      1.5  rkujawa 	 * Register information about some known PCI devices with
    482      1.5  rkujawa 	 * DMA-able memory.
    483      1.5  rkujawa 	 */
    484      1.5  rkujawa 	/*if ((PCI_VENDOR(id) == PCI_VENDOR_3DFX) &&
    485      1.5  rkujawa 		(PCI_PRODUCT(id) >= PCI_PRODUCT_3DFX_VOODOO3))*/
    486      1.5  rkujawa 
    487      1.5  rkujawa 
    488      1.5  rkujawa         return PCI_CONF_DEFAULT;
    489      1.5  rkujawa }
    490