1 /* $NetBSD: eisa_machdep.c,v 1.6 2022/06/18 22:11:00 andvar Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by Christopher G. Demetriou
47 * for the NetBSD Project.
48 * 4. The name of the author may not be used to endorse or promote products
49 * derived from this software without specific prior written permission
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 */
62
63 /*
64 * Machine-specific functions for EISA autoconfiguration.
65 */
66
67 #include <sys/cdefs.h>
68 __KERNEL_RCSID(0, "$NetBSD: eisa_machdep.c,v 1.6 2022/06/18 22:11:00 andvar Exp $");
69
70 #include <sys/types.h>
71 #include <sys/param.h>
72 #include <sys/time.h>
73 #include <sys/systm.h>
74 #include <sys/errno.h>
75 #include <sys/device.h>
76 #include <sys/extent.h>
77
78 #define _POWERPC_BUS_DMA_PRIVATE
79 #include <sys/bus.h>
80 #include <machine/pio.h>
81 #include <machine/intr.h>
82
83 #include <dev/isa/isareg.h>
84 #include <dev/isa/isavar.h>
85 #include <dev/eisa/eisavar.h>
86
87 /*
88 * EISA doesn't have any special needs; just use the generic versions
89 * of these functions.
90 */
91 struct powerpc_bus_dma_tag eisa_bus_dma_tag = {
92 0, /* _bounce_thresh */
93 _bus_dmamap_create,
94 _bus_dmamap_destroy,
95 _bus_dmamap_load,
96 _bus_dmamap_load_mbuf,
97 _bus_dmamap_load_uio,
98 _bus_dmamap_load_raw,
99 _bus_dmamap_unload,
100 NULL, /* _dmamap_sync */
101 _bus_dmamem_alloc,
102 _bus_dmamem_free,
103 _bus_dmamem_map,
104 _bus_dmamem_unmap,
105 _bus_dmamem_mmap,
106 };
107
108 void
eisa_attach_hook(device_t parent,device_t self,struct eisabus_attach_args * eba)109 eisa_attach_hook(device_t parent, device_t self,
110 struct eisabus_attach_args *eba)
111 {
112 /* Nothing to do. */
113 }
114
115 int
eisa_maxslots(eisa_chipset_tag_t ec)116 eisa_maxslots(eisa_chipset_tag_t ec)
117 {
118
119 /*
120 * Always try 16 slots.
121 */
122 return (16);
123 }
124
125 int
eisa_intr_map(eisa_chipset_tag_t ec,u_int irq,eisa_intr_handle_t * ihp)126 eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp)
127 {
128 if (irq >= I8259_INTR_NUM) {
129 printf("eisa_intr_map: bad IRQ %d\n", irq);
130 *ihp = -1;
131 return 1;
132 }
133 if (irq == 2) {
134 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
135 irq = 9;
136 }
137
138 *ihp = irq;
139 return 0;
140 }
141
142 const char *
eisa_intr_string(eisa_chipset_tag_t ec,eisa_intr_handle_t ih,char * buf,size_t len)143 eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, char *buf,
144 size_t len)
145 {
146 if (ih == 0 || (ih & 0xff) >= I8259_INTR_NUM || ih == 2)
147 panic("eisa_intr_string: bogus handle 0x%x", ih);
148
149 snprintf(buf, len, "irq %d", ih);
150 return buf;
151
152 }
153
154 const struct evcnt *
eisa_intr_evcnt(eisa_chipset_tag_t ec,eisa_intr_handle_t ih)155 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
156 {
157
158 /* XXX for now, no evcnt parent reported */
159 return NULL;
160 }
161
162 void *
eisa_intr_establish(eisa_chipset_tag_t ec,eisa_intr_handle_t ih,int type,int level,int (* func)(void *),void * arg)163 eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih,
164 int type, int level, int (*func)(void *), void *arg)
165 {
166 int irq;
167
168 irq = ih;
169 return (void *)intr_establish(irq, type, level, func, arg);
170 }
171
172 void
eisa_intr_disestablish(eisa_chipset_tag_t ec,void * cookie)173 eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie)
174 {
175
176 intr_disestablish(cookie);
177 }
178
179 int
eisa_conf_read_mem(eisa_chipset_tag_t ec,int slot,int func,int entry,struct eisa_cfg_mem * ecm)180 eisa_conf_read_mem(eisa_chipset_tag_t ec, int slot, int func, int entry,
181 struct eisa_cfg_mem *ecm)
182 {
183
184 /* XXX XXX XXX */
185 return (ENOENT);
186 }
187
188 int
eisa_conf_read_irq(eisa_chipset_tag_t ec,int slot,int func,int entry,struct eisa_cfg_irq * eci)189 eisa_conf_read_irq(eisa_chipset_tag_t ec, int slot, int func, int entry,
190 struct eisa_cfg_irq *eci)
191 {
192
193 /* XXX XXX XXX */
194 return (ENOENT);
195 }
196
197 int
eisa_conf_read_dma(eisa_chipset_tag_t ec,int slot,int func,int entry,struct eisa_cfg_dma * ecd)198 eisa_conf_read_dma(eisa_chipset_tag_t ec, int slot, int func, int entry,
199 struct eisa_cfg_dma *ecd)
200 {
201
202 /* XXX XXX XXX */
203 return (ENOENT);
204 }
205
206 int
eisa_conf_read_io(eisa_chipset_tag_t ec,int slot,int func,int entry,struct eisa_cfg_io * ecio)207 eisa_conf_read_io(eisa_chipset_tag_t ec, int slot, int func, int entry,
208 struct eisa_cfg_io *ecio)
209 {
210
211 /* XXX XXX XXX */
212 return (ENOENT);
213 }
214