1 /* $NetBSD: if_ath_arbus.c,v 1.23 2022/09/29 07:00:46 skrll Exp $ */
2
3 /*-
4 * Copyright (c) 2006 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: if_ath_arbus.c,v 1.23 2022/09/29 07:00:46 skrll Exp $");
38
39 #include <sys/param.h>
40 #include <sys/bus.h>
41 #include <sys/device.h>
42 #include <sys/errno.h>
43 #include <sys/intr.h>
44 #include <sys/kernel.h>
45 #include <sys/mbuf.h>
46 #include <sys/systm.h>
47
48 #include <net/if.h>
49 #include <net/if_media.h>
50 #include <net/if_ether.h>
51 #include <net/if_llc.h>
52 #include <net/if_arp.h>
53
54 #include <netinet/in.h>
55
56 #include <net80211/ieee80211_netbsd.h>
57 #include <net80211/ieee80211_var.h>
58
59 #include <mips/atheros/include/arbusvar.h>
60 #include <mips/atheros/include/platform.h>
61
62 #include <dev/pci/pcidevs.h>
63 #include <dev/ic/ath_netbsd.h>
64 #include <dev/ic/athvar.h>
65
66 #include <ah.h>
67 #include <ah_soc.h> /* XXX really doesn't belong in hal */
68
69 struct ath_arbus_softc {
70 struct ath_softc sc_ath;
71 bus_space_tag_t sc_iot;
72 bus_space_handle_t sc_ioh;
73 void *sc_ih;
74 struct ar531x_config sc_config;
75 };
76
77 static int ath_arbus_match(device_t, cfdata_t, void *);
78 static void ath_arbus_attach(device_t, device_t, void *);
79 static int ath_arbus_detach(device_t, int);
80
81 CFATTACH_DECL_NEW(ath_arbus, sizeof(struct ath_arbus_softc),
82 ath_arbus_match, ath_arbus_attach, ath_arbus_detach, NULL);
83
84 static int
ath_arbus_match(device_t parent,cfdata_t cf,void * opaque)85 ath_arbus_match(device_t parent, cfdata_t cf, void *opaque)
86 {
87 struct arbus_attach_args *aa;
88
89 aa = (struct arbus_attach_args *)opaque;
90 if (strcmp(aa->aa_name, "ath") == 0)
91 return 1;
92
93 return 0;
94 }
95
96 static bool
ath_arbus_resume(device_t dv,const pmf_qual_t * qual)97 ath_arbus_resume(device_t dv, const pmf_qual_t *qual)
98 {
99 struct ath_arbus_softc *asc = device_private(dv);
100 ath_resume(&asc->sc_ath);
101
102 return true;
103 }
104
105
106 static void
ath_arbus_attach(device_t parent,device_t self,void * opaque)107 ath_arbus_attach(device_t parent, device_t self, void *opaque)
108 {
109 struct ath_arbus_softc *asc;
110 struct ath_softc *sc;
111 struct arbus_attach_args *aa;
112 const char *name;
113 prop_number_t prop;
114 int rv;
115 uint16_t devid;
116
117 asc = device_private(self);
118 sc = &asc->sc_ath;
119 sc->sc_dev = self;
120 aa = (struct arbus_attach_args *)opaque;
121
122 prop = prop_dictionary_get(device_properties(sc->sc_dev),
123 "wmac-rev");
124 if (prop == NULL) {
125 printf(": unable to get wmac-rev property\n");
126 return;
127 }
128 KDASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER);
129
130 devid = (uint16_t)prop_number_integer_value(prop);
131 name = ath_hal_probe(PCI_VENDOR_ATHEROS, devid);
132
133 printf(": %s\n", name ? name : "Unknown AR531X WLAN");
134
135 asc->sc_iot = aa->aa_bst;
136 rv = bus_space_map(asc->sc_iot, aa->aa_addr, aa->aa_size, 0,
137 &asc->sc_ioh);
138 if (rv) {
139 aprint_error_dev(self, "unable to map registers\n");
140 return;
141 }
142 /*
143 * Setup HAL configuration state for use by the driver.
144 */
145 rv = atheros_get_board_config(&asc->sc_config);
146 if (rv) {
147 aprint_error_dev(self, "unable to locate board configuration\n");
148 return;
149 }
150 asc->sc_config.unit = device_unit(sc->sc_dev);
151 asc->sc_config.tag = asc->sc_iot;
152
153 /* NB: the HAL expects the config state passed as the tag */
154 sc->sc_st = (HAL_BUS_TAG) &asc->sc_config;
155 sc->sc_sh = (HAL_BUS_HANDLE) asc->sc_ioh;
156 sc->sc_dmat = aa->aa_dmat;
157
158 asc->sc_ih = arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, ath_intr,
159 sc);
160 if (asc->sc_ih == NULL) {
161 aprint_error_dev(self, "couldn't establish interrupt\n");
162 return;
163 }
164
165 //ATH_LOCK_INIT(sc);
166
167 if (!pmf_device_register(self, NULL, ath_arbus_resume))
168 aprint_error_dev(self, "couldn't establish power handler\n");
169 else
170 pmf_class_network_register(self, &sc->sc_if);
171
172 if (ath_attach(devid, sc) != 0) {
173 aprint_error_dev(self, "ath_attach failed\n");
174 goto err;
175 }
176
177 return;
178
179 err:
180 arbus_intr_disestablish(asc->sc_ih);
181 }
182
183 static int
ath_arbus_detach(device_t self,int flags)184 ath_arbus_detach(device_t self, int flags)
185 {
186 struct ath_arbus_softc *asc = device_private(self);
187
188 ath_detach(&asc->sc_ath);
189 arbus_intr_disestablish(asc->sc_ih);
190
191 return (0);
192 }
193