1 /* $NetBSD: i82365_isa.c,v 1.36 2022/09/25 17:09:36 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1997 Marc Horowitz. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Marc Horowitz.
17 * 4. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: i82365_isa.c,v 1.36 2022/09/25 17:09:36 thorpej Exp $");
34
35 #define PCICISADEBUG
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/device.h>
40 #include <sys/extent.h>
41
42 #include <sys/bus.h>
43 #include <sys/intr.h>
44
45 #include <dev/isa/isareg.h>
46 #include <dev/isa/isavar.h>
47
48 #include <dev/pcmcia/pcmciareg.h>
49 #include <dev/pcmcia/pcmciavar.h>
50 #include <dev/pcmcia/pcmciachip.h>
51
52 #include <dev/ic/i82365reg.h>
53 #include <dev/ic/i82365var.h>
54 #include <dev/isa/i82365_isavar.h>
55
56 #ifdef PCICISADEBUG
57 int pcicisa_debug = 0;
58 #define DPRINTF(arg) if (pcicisa_debug) printf arg;
59 #else
60 #define DPRINTF(arg)
61 #endif
62
63 int pcic_isa_probe(device_t, cfdata_t, void *);
64 void pcic_isa_attach(device_t, device_t, void *);
65
66 CFATTACH_DECL_NEW(pcic_isa, sizeof(struct pcic_isa_softc),
67 pcic_isa_probe, pcic_isa_attach, NULL, NULL);
68
69 static const struct pcmcia_chip_functions pcic_isa_functions = {
70 pcic_chip_mem_alloc,
71 pcic_chip_mem_free,
72 pcic_chip_mem_map,
73 pcic_chip_mem_unmap,
74
75 pcic_chip_io_alloc,
76 pcic_chip_io_free,
77 pcic_chip_io_map,
78 pcic_chip_io_unmap,
79
80 pcic_isa_chip_intr_establish,
81 pcic_isa_chip_intr_disestablish,
82
83 pcic_chip_socket_enable,
84 pcic_chip_socket_disable,
85 pcic_chip_socket_settype,
86 NULL,
87 };
88
89 int
pcic_isa_probe(device_t parent,cfdata_t match,void * aux)90 pcic_isa_probe(device_t parent, cfdata_t match, void *aux)
91 {
92 struct isa_attach_args *ia = aux;
93 bus_space_tag_t iot = ia->ia_iot;
94 bus_space_handle_t ioh, memh;
95 int val, found, msize;
96
97 if (ia->ia_nio < 1)
98 return 0;
99 if (ia->ia_niomem < 1)
100 return 0;
101
102 if (ISA_DIRECT_CONFIG(ia))
103 return 0;
104
105 /* Disallow wildcarded i/o address. */
106 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
107 return 0;
108 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM)
109 return 0;
110
111 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh))
112 return 0;
113
114 if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ)
115 msize = PCIC_MEMSIZE;
116 else
117 msize = ia->ia_iomem[0].ir_size;
118
119 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
120 msize, 0, &memh)) {
121 bus_space_unmap(iot, ioh, PCIC_IOSIZE);
122 return 0;
123 }
124
125 found = 0;
126
127 /*
128 * this could be done with a loop, but it would violate the
129 * abstraction
130 */
131
132 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT);
133
134 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
135
136 if (pcic_ident_ok(val))
137 found++;
138
139
140 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT);
141
142 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
143
144 if (pcic_ident_ok(val))
145 found++;
146
147
148 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT);
149
150 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
151
152 if (pcic_ident_ok(val))
153 found++;
154
155
156 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT);
157
158 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
159
160 if (pcic_ident_ok(val))
161 found++;
162
163
164 bus_space_unmap(iot, ioh, PCIC_IOSIZE);
165 bus_space_unmap(ia->ia_memt, memh, msize);
166
167 if (!found)
168 return 0;
169
170 ia->ia_nio = 1;
171 ia->ia_io[0].ir_size = PCIC_IOSIZE;
172
173 ia->ia_niomem = 1;
174 ia->ia_iomem[0].ir_size = msize;
175
176 /* IRQ is special. */
177
178 ia->ia_ndrq = 0;
179
180 return 1;
181 }
182
183 void
pcic_isa_attach(device_t parent,device_t self,void * aux)184 pcic_isa_attach(device_t parent, device_t self, void *aux)
185 {
186 struct pcic_isa_softc *isc = device_private(self);
187 struct pcic_softc *sc = &isc->sc_pcic;
188 struct isa_attach_args *ia = aux;
189 isa_chipset_tag_t ic = ia->ia_ic;
190 bus_space_tag_t iot = ia->ia_iot;
191 bus_space_tag_t memt = ia->ia_memt;
192 bus_space_handle_t ioh;
193 bus_space_handle_t memh;
194
195 aprint_naive("\n");
196 sc->dev = self;
197
198 /* Map i/o space. */
199 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) {
200 aprint_error(": can't map i/o space\n");
201 return;
202 }
203
204 /* Map mem space. */
205 if (bus_space_map(memt, ia->ia_iomem[0].ir_addr,
206 ia->ia_iomem[0].ir_size, 0, &memh)) {
207 aprint_error(": can't map mem space\n");
208 return;
209 }
210
211 sc->membase = ia->ia_iomem[0].ir_addr;
212 sc->subregionmask =
213 (1 << (ia->ia_iomem[0].ir_size / PCIC_MEM_PAGESIZE)) - 1;
214
215 isc->sc_ic = ic;
216 sc->pct = &pcic_isa_functions;
217
218 sc->iot = iot;
219 sc->ioh = ioh;
220 sc->memt = memt;
221 sc->memh = memh;
222 if (ia->ia_nirq > 0)
223 sc->irq = ia->ia_irq[0].ir_irq;
224 else
225 sc->irq = ISA_UNKNOWN_IRQ;
226
227 aprint_normal("\n");
228
229 pcic_attach(sc);
230 pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_io[0].ir_addr,
231 PCIC_IOSIZE);
232 pcic_attach_sockets(sc);
233
234 config_interrupts(self, pcic_isa_config_interrupts);
235 }
236