1 /* $NetBSD: if_wi_obio.c,v 1.25 2021/03/05 07:15:53 rin Exp $ */
2
3 /*-
4 * Copyright (c) 2001 Tsubai Masanari. 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. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: if_wi_obio.c,v 1.25 2021/03/05 07:15:53 rin Exp $");
31
32 #include "opt_inet.h"
33
34 #include <sys/param.h>
35 #include <sys/callout.h>
36 #include <sys/device.h>
37 #include <sys/socket.h>
38 #include <sys/systm.h>
39
40 #ifdef INET
41 #include <net/if.h>
42 #include <net/if_ether.h>
43 #include <net/if_media.h>
44 #include <net80211/ieee80211_var.h>
45 #include <net80211/ieee80211_radiotap.h>
46 #include <net80211/ieee80211_rssadapt.h>
47 #endif
48
49 #include <machine/autoconf.h>
50 #include <sys/bus.h>
51
52 #include <dev/ic/wi_ieee.h>
53 #include <dev/ic/wireg.h>
54 #include <dev/ic/wivar.h>
55 #include <macppc/dev/obiovar.h>
56
57 static int wi_obio_match(device_t, cfdata_t, void *);
58 static void wi_obio_attach(device_t, device_t, void *);
59 static int wi_obio_enable(device_t, int);
60
61 struct wi_obio_softc {
62 struct wi_softc sc_wi;
63 bus_space_tag_t sc_tag;
64 };
65
66 CFATTACH_DECL_NEW(wi_obio, sizeof(struct wi_obio_softc),
67 wi_obio_match, wi_obio_attach, NULL, NULL);
68
69 int
wi_obio_match(device_t parent,cfdata_t match,void * aux)70 wi_obio_match(device_t parent, cfdata_t match, void *aux)
71 {
72 struct confargs *ca = aux;
73
74 if (ca->ca_nintr < 4 || ca->ca_nreg < 8)
75 return 0;
76
77 if (strcmp(ca->ca_name, "radio") != 0)
78 return 0;
79
80 return 1;
81 }
82
83 #define OBIO_WI_FCR2 0x40
84 #define OBIO_WI_GPIO 0x6a
85 #define OBIO_WI_EXTINT 0x58
86
87 void
wi_obio_attach(device_t parent,device_t self,void * aux)88 wi_obio_attach(device_t parent, device_t self, void *aux)
89 {
90 struct wi_obio_softc * const sc = device_private(self);
91 struct wi_softc * const wisc = &sc->sc_wi;
92 struct confargs * const ca = aux;
93
94 aprint_normal(" irq %d:", ca->ca_intr[0]);
95 intr_establish_xname(ca->ca_intr[0], IST_LEVEL, IPL_NET, wi_intr, sc,
96 device_xname(self));
97
98 wisc->sc_dev = self;
99 sc->sc_tag = wisc->sc_iot = ca->ca_tag;
100
101 if (bus_space_map(wisc->sc_iot, ca->ca_baseaddr + ca->ca_reg[0],
102 ca->ca_reg[1], 0, &wisc->sc_ioh)) {
103 printf(" can't map i/o space\n");
104 return;
105 }
106
107 wisc->sc_enabled = 1;
108 wisc->sc_enable = wi_obio_enable;
109
110 if (wi_attach(wisc, 0)) {
111 printf("%s: failed to attach controller\n", device_xname(self));
112 return;
113 }
114
115 if (!pmf_device_register(self, NULL, NULL))
116 aprint_error_dev(self, "couldn't establish power handler\n");
117 else
118 pmf_class_network_register(self, &sc->sc_wi.sc_if);
119
120 /* Disable the card. */
121 wisc->sc_enabled = 0;
122 wi_obio_enable(self, 0);
123 }
124
125 int
wi_obio_enable(device_t self,int enable)126 wi_obio_enable(device_t self, int enable)
127 {
128 uint32_t x;
129
130 if (enable) {
131 x = obio_read_4(OBIO_WI_FCR2);
132 x |= 0x4;
133 obio_write_4(OBIO_WI_FCR2, x);
134
135 /* Enable card slot. */
136 obio_write_1(OBIO_WI_GPIO + 0x0f, 5);
137 delay(1000);
138 obio_write_1(OBIO_WI_GPIO + 0x0f, 4);
139 delay(1000);
140 x = obio_read_4(OBIO_WI_FCR2);
141 x &= ~0x8000000;
142
143 obio_write_4(OBIO_WI_FCR2, x);
144 /* out8(gpio + 0x10, 4); */
145
146 obio_write_1(OBIO_WI_EXTINT + 0x0b, 0);
147 obio_write_1(OBIO_WI_EXTINT + 0x0a, 0x28);
148 obio_write_1(OBIO_WI_EXTINT + 0x0d, 0x28);
149 obio_write_1(OBIO_WI_GPIO + 0x0d, 0x28);
150 obio_write_1(OBIO_WI_GPIO + 0x0e, 0x28);
151 obio_write_4(0x1c000, 0);
152
153 /* Initialize the card. */
154 obio_write_4(0x1a3e0, 0x41);
155 x = obio_read_4(OBIO_WI_FCR2);
156 x |= 0x8000000;
157 obio_write_4(OBIO_WI_FCR2, x);
158 } else {
159 x = obio_read_4(OBIO_WI_FCR2);
160 x &= ~0x4;
161 obio_write_4(OBIO_WI_FCR2, x);
162 /* out8(gpio + 0x10, 0); */
163 }
164
165 return 0;
166 }
167