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      1 /*	$NetBSD: pci_machdep.c,v 1.5 2023/12/20 00:40:42 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Radoslaw Kujawa.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /* Amiga-specific PCI MD stuff. */
     33 
     34 #include <sys/types.h>
     35 #include <sys/param.h>
     36 #include <sys/time.h>
     37 #include <sys/systm.h>
     38 #include <sys/errno.h>
     39 #include <sys/device.h>
     40 #include <sys/kmem.h>
     41 
     42 #include <uvm/uvm_extern.h>
     43 
     44 #include <machine/bus.h>
     45 #include <machine/cpu.h>
     46 
     47 #include <m68k/bus_dma.h>
     48 #include <amiga/dev/zbusvar.h>
     49 #include <amiga/pci/mppbreg.h>
     50 
     51 #include <dev/pci/pcivar.h>
     52 #include <dev/pci/pcireg.h>
     53 #include <dev/pci/pcidevs.h>
     54 #include <dev/pci/pciconf.h>
     55 
     56 pcitag_t
     57 amiga_pci_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
     58 {
     59 	return (bus << 16) | (device << 11) | (function << 8);
     60 }
     61 
     62 void
     63 amiga_pci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp,
     64     int *dp, int *fp)
     65 {
     66 	if (bp != NULL)
     67 		*bp = (tag >> 16) & 0xff;
     68 	if (dp != NULL)
     69 		*dp = (tag >> 11) & 0x1f;
     70 	if (fp != NULL)
     71 		*fp = (tag >> 8) & 0x07;
     72 }
     73 
     74 void *
     75 amiga_pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
     76     int (*ih_fun)(void *), void *ih_arg)
     77 {
     78 	struct isr* pci_isr;
     79 	pci_isr = kmem_zalloc(sizeof(struct isr), KM_SLEEP);
     80 
     81 	/* TODO: check for bogus handle */
     82 
     83 	pci_isr->isr_intr = ih_fun;
     84 	pci_isr->isr_arg = ih_arg;
     85 	pci_isr->isr_ipl = 2;		/* XXX: true for all current drivers */
     86 	add_isr(pci_isr);
     87 	return pci_isr;
     88 }
     89 
     90 void
     91 amiga_pci_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
     92 {
     93 	remove_isr(cookie);
     94 	kmem_free(cookie, sizeof(struct isr));
     95 }
     96 
     97 const char *
     98 amiga_pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih, char *buf,
     99     size_t len)
    100 {
    101 
    102 	snprintf(buf, len, "INT%d", (int) ih);
    103 	return buf;
    104 }
    105 
    106 int
    107 amiga_pci_conf_hook(pci_chipset_tag_t pct, int bus, int dev, int func,
    108     pcireg_t id)
    109 {
    110 	return PCI_CONF_DEFAULT;
    111 }
    112 
    113 void
    114 amiga_pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int func,
    115     int swiz, int *iline)
    116 {
    117 }
    118 
    119