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
amiga_pci_make_tag(pci_chipset_tag_t pc,int bus,int device,int function)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
amiga_pci_decompose_tag(pci_chipset_tag_t pc,pcitag_t tag,int * bp,int * dp,int * fp)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 *
amiga_pci_intr_establish(pci_chipset_tag_t pc,pci_intr_handle_t ih,int level,int (* ih_fun)(void *),void * ih_arg)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
amiga_pci_intr_disestablish(pci_chipset_tag_t pc,void * cookie)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 *
amiga_pci_intr_string(pci_chipset_tag_t pc,pci_intr_handle_t ih,char * buf,size_t len)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
amiga_pci_conf_hook(pci_chipset_tag_t pct,int bus,int dev,int func,pcireg_t id)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
amiga_pci_conf_interrupt(pci_chipset_tag_t pc,int bus,int dev,int func,int swiz,int * iline)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