1/* $NetBSD: if_ath_arbus.c,v 1.21 2011/07/10 06:24:19 matt 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 1.21 2011/07/10 06:24:19 matt 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/malloc.h>
46#include <sys/mbuf.h>
47#include <sys/systm.h>
48
49#include <net/if.h>
50#include <net/if_media.h>
51#include <net/if_ether.h>
52#include <net/if_llc.h>
53#include <net/if_arp.h>
54
55#include <netinet/in.h>
56
57#include <net80211/ieee80211_netbsd.h>
58#include <net80211/ieee80211_var.h>
59
60#include <mips/atheros/include/arbusvar.h>
61#include <mips/atheros/include/platform.h>
62
63#include <dev/pci/pcidevs.h>
64#include <dev/ic/ath_netbsd.h>
65#include <dev/ic/athvar.h>
66
67#include <ah.h>
68#include <ah_soc.h>	/* XXX really doesn't belong in hal */
69
70struct ath_arbus_softc {
71	struct ath_softc	sc_ath;
72	bus_space_tag_t		sc_iot;
73	bus_space_handle_t	sc_ioh;
74	void			*sc_ih;
75	struct ar531x_config	sc_config;
76};
77
78static int	ath_arbus_match(device_t, cfdata_t, void *);
79static void	ath_arbus_attach(device_t, device_t, void *);
80static int	ath_arbus_detach(device_t, int);
81
82CFATTACH_DECL_NEW(ath_arbus, sizeof(struct ath_arbus_softc),
83    ath_arbus_match, ath_arbus_attach, ath_arbus_detach, NULL);
84
85static int
86ath_arbus_match(device_t parent, cfdata_t cf, void *opaque)
87{
88	struct arbus_attach_args *aa;
89
90	aa = (struct arbus_attach_args *)opaque;
91	if (strcmp(aa->aa_name, "ath") == 0)
92		return 1;
93
94	return 0;
95}
96
97static bool
98ath_arbus_resume(device_t dv, const pmf_qual_t *qual)
99{
100	struct ath_arbus_softc *asc = device_private(dv);
101	ath_resume(&asc->sc_ath);
102
103	return true;
104}
105
106
107static void
108ath_arbus_attach(device_t parent, device_t self, void *opaque)
109{
110	struct ath_arbus_softc *asc;
111	struct ath_softc *sc;
112	struct arbus_attach_args *aa;
113	const char *name;
114	prop_number_t prop;
115	int rv;
116	uint16_t devid;
117
118	asc = device_private(self);
119	sc = &asc->sc_ath;
120	sc->sc_dev = self;
121	aa = (struct arbus_attach_args *)opaque;
122
123	prop = prop_dictionary_get(device_properties(sc->sc_dev),
124	    "wmac-rev");
125	if (prop == NULL) {
126		printf(": unable to get wmac-rev property\n");
127		return;
128	}
129	KDASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER);
130
131	devid = (uint16_t)prop_number_integer_value(prop);
132	name = ath_hal_probe(PCI_VENDOR_ATHEROS, devid);
133
134	printf(": %s\n", name ? name : "Unknown AR531X WLAN");
135
136	asc->sc_iot = aa->aa_bst;
137	rv = bus_space_map(asc->sc_iot, aa->aa_addr, aa->aa_size, 0,
138	    &asc->sc_ioh);
139	if (rv) {
140		aprint_error_dev(self, "unable to map registers\n");
141		return;
142	}
143	/*
144	 * Setup HAL configuration state for use by the driver.
145	 */
146	rv = atheros_get_board_config(&asc->sc_config);
147	if (rv) {
148		aprint_error_dev(self, "unable to locate board configuration\n");
149		return;
150	}
151	asc->sc_config.unit = device_unit(sc->sc_dev);
152	asc->sc_config.tag = asc->sc_iot;
153
154	/* NB: the HAL expects the config state passed as the tag */
155	sc->sc_st = (HAL_BUS_TAG) &asc->sc_config;
156	sc->sc_sh = (HAL_BUS_HANDLE) asc->sc_ioh;
157	sc->sc_dmat = aa->aa_dmat;
158
159	asc->sc_ih = arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, ath_intr,
160	    sc);
161	if (asc->sc_ih == NULL) {
162		aprint_error_dev(self, "couldn't establish interrupt\n");
163		return;
164	}
165
166	//ATH_LOCK_INIT(sc);
167
168	if (!pmf_device_register(self, NULL, ath_arbus_resume))
169		aprint_error_dev(self, "couldn't establish power handler\n");
170	else
171		pmf_class_network_register(self, &sc->sc_if);
172
173	if (ath_attach(devid, sc) != 0) {
174		aprint_error_dev(self, "ath_attach failed\n");
175		goto err;
176	}
177
178	return;
179
180err:
181	arbus_intr_disestablish(asc->sc_ih);
182}
183
184static int
185ath_arbus_detach(device_t self, int flags)
186{
187	struct ath_arbus_softc *asc = device_private(self);
188
189	ath_detach(&asc->sc_ath);
190	arbus_intr_disestablish(asc->sc_ih);
191
192	return (0);
193}
194