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pci_machdep.c revision 1.4 
      1 /*	$NetBSD: pci_machdep.c,v 1.4 2020/06/17 06:41:39 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/malloc.h>
     41 #include <sys/kmem.h>
     42 
     43 #include <uvm/uvm_extern.h>
     44 
     45 #include <machine/bus.h>
     46 #include <machine/cpu.h>
     47 
     48 #include <m68k/bus_dma.h>
     49 #include <amiga/dev/zbusvar.h>
     50 #include <amiga/pci/mppbreg.h>
     51 
     52 #include <dev/pci/pcivar.h>
     53 #include <dev/pci/pcireg.h>
     54 #include <dev/pci/pcidevs.h>
     55 #include <dev/pci/pciconf.h>
     56 
     57 pcitag_t
     58 amiga_pci_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
     59 {
     60 	return (bus << 16) | (device << 11) | (function << 8);
     61 }
     62 
     63 void
     64 amiga_pci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp,
     65     int *dp, int *fp)
     66 {
     67 	if (bp != NULL)
     68 		*bp = (tag >> 16) & 0xff;
     69 	if (dp != NULL)
     70 		*dp = (tag >> 11) & 0x1f;
     71 	if (fp != NULL)
     72 		*fp = (tag >> 8) & 0x07;
     73 }
     74 
     75 void *
     76 amiga_pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
     77     int (*ih_fun)(void *), void *ih_arg)
     78 {
     79 	struct isr* pci_isr;
     80 	pci_isr = kmem_zalloc(sizeof(struct isr), KM_SLEEP);
     81 
     82 	/* TODO: check for bogus handle */
     83 
     84 	pci_isr->isr_intr = ih_fun;
     85 	pci_isr->isr_arg = ih_arg;
     86 	pci_isr->isr_ipl = 2;		/* XXX: true for all current drivers */
     87 	add_isr(pci_isr);
     88 	return pci_isr;
     89 }
     90 
     91 void
     92 amiga_pci_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
     93 {
     94 	remove_isr(cookie);
     95 	kmem_free(cookie, sizeof(struct isr));
     96 }
     97 
     98 const char *
     99 amiga_pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih, char *buf,
    100     size_t len)
    101 {
    102 
    103 	snprintf(buf, len, "INT%d", (int) ih);
    104 	return buf;
    105 }
    106 
    107 int
    108 amiga_pci_conf_hook(pci_chipset_tag_t pct, int bus, int dev, int func,
    109     pcireg_t id)
    110 {
    111 	return PCI_CONF_DEFAULT;
    112 }
    113 
    114 void
    115 amiga_pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int func,
    116     int swiz, int *iline)
    117 {
    118 }
    119 
    120