1 | /* $NetBSD: if_bwi_pci.c,v 1.15 2016/07/07 06:55:41 msaitoh Exp $ */ |
2 | /* $OpenBSD: if_bwi_pci.c,v 1.6 2008/02/14 22:10:02 brad Exp $ */ |
3 | |
4 | /* |
5 | * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org> |
6 | * |
7 | * Permission to use, copy, modify, and distribute this software for any |
8 | * purpose with or without fee is hereby granted, provided that the above |
9 | * copyright notice and this permission notice appear in all copies. |
10 | * |
11 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
12 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
13 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
14 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
15 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
16 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
17 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
18 | */ |
19 | |
20 | /* |
21 | * Broadcom AirForce BCM43xx IEEE 802.11b/g wireless network driver |
22 | * PCI front end |
23 | */ |
24 | |
25 | |
26 | #include <sys/cdefs.h> |
27 | __KERNEL_RCSID(0, "$NetBSD: if_bwi_pci.c,v 1.15 2016/07/07 06:55:41 msaitoh Exp $" ); |
28 | |
29 | #include <sys/param.h> |
30 | #include <sys/callout.h> |
31 | #include <sys/device.h> |
32 | #include <sys/kernel.h> |
33 | #include <sys/malloc.h> |
34 | #include <sys/mbuf.h> |
35 | #include <sys/socket.h> |
36 | #include <sys/sockio.h> |
37 | #include <sys/systm.h> |
38 | |
39 | #include <sys/bus.h> |
40 | |
41 | #include <net/if.h> |
42 | #include <net/if_dl.h> |
43 | #include <net/if_ether.h> |
44 | #include <net/if_media.h> |
45 | |
46 | #include <net80211/ieee80211_var.h> |
47 | #include <net80211/ieee80211_amrr.h> |
48 | #include <net80211/ieee80211_radiotap.h> |
49 | |
50 | #include <dev/ic/bwivar.h> |
51 | |
52 | #include <dev/pci/pcireg.h> |
53 | #include <dev/pci/pcivar.h> |
54 | #include <dev/pci/pcidevs.h> |
55 | |
56 | /* Base Address Register */ |
57 | #define BWI_PCI_BAR0 PCI_BAR(0) |
58 | |
59 | static int bwi_pci_match(device_t, cfdata_t, void *); |
60 | static void bwi_pci_attach(device_t, device_t, void *); |
61 | static int bwi_pci_detach(device_t, int); |
62 | static void bwi_pci_conf_write(void *, uint32_t, uint32_t); |
63 | static uint32_t bwi_pci_conf_read(void *, uint32_t); |
64 | |
65 | struct bwi_pci_softc { |
66 | struct bwi_softc psc_bwi; |
67 | |
68 | pci_chipset_tag_t psc_pc; |
69 | pcitag_t psc_pcitag; |
70 | |
71 | bus_size_t psc_mapsize; |
72 | }; |
73 | |
74 | CFATTACH_DECL_NEW(bwi_pci, sizeof(struct bwi_pci_softc), |
75 | bwi_pci_match, bwi_pci_attach, bwi_pci_detach, NULL); |
76 | |
77 | static int |
78 | bwi_pci_match(device_t parent, cfdata_t match, void *aux) |
79 | { |
80 | struct pci_attach_args *pa = aux; |
81 | |
82 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BROADCOM) |
83 | return (0); |
84 | |
85 | switch (PCI_PRODUCT(pa->pa_id)) { |
86 | case PCI_PRODUCT_BROADCOM_BCM4303: |
87 | case PCI_PRODUCT_BROADCOM_BCM4306: |
88 | case PCI_PRODUCT_BROADCOM_BCM4306_2: |
89 | case PCI_PRODUCT_BROADCOM_BCM4307: |
90 | case PCI_PRODUCT_BROADCOM_BCM4309: |
91 | case PCI_PRODUCT_BROADCOM_BCM4311: |
92 | case PCI_PRODUCT_BROADCOM_BCM4312: |
93 | case PCI_PRODUCT_BROADCOM_BCM4318: |
94 | case PCI_PRODUCT_BROADCOM_BCM4319: |
95 | case PCI_PRODUCT_BROADCOM_BCM4322: |
96 | case PCI_PRODUCT_BROADCOM_BCM43XG: |
97 | case PCI_PRODUCT_BROADCOM_BCM4328: |
98 | return (1); |
99 | } |
100 | |
101 | return (0); |
102 | } |
103 | |
104 | static void |
105 | bwi_pci_attach(device_t parent, device_t self, void *aux) |
106 | { |
107 | struct bwi_pci_softc *psc = device_private(self); |
108 | struct pci_attach_args *pa = aux; |
109 | struct bwi_softc *sc = &psc->psc_bwi; |
110 | const char *intrstr = NULL; |
111 | pci_intr_handle_t ih; |
112 | pcireg_t memtype, reg; |
113 | int error = 0; |
114 | char intrbuf[PCI_INTRSTR_LEN]; |
115 | |
116 | aprint_naive("\n" ); |
117 | aprint_normal(": Broadcom Wireless\n" ); |
118 | |
119 | sc->sc_dev = self; |
120 | sc->sc_dmat = pa->pa_dmat; |
121 | psc->psc_pc = pa->pa_pc; |
122 | psc->psc_pcitag = pa->pa_tag; |
123 | |
124 | /* map control / status registers */ |
125 | memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BWI_PCI_BAR0); |
126 | switch (memtype) { |
127 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: |
128 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: |
129 | break; |
130 | default: |
131 | aprint_error_dev(self, "invalid base address register\n" ); |
132 | return; |
133 | } |
134 | |
135 | if (pci_mapreg_map(pa, BWI_PCI_BAR0, memtype, 0, &sc->sc_mem_bt, |
136 | &sc->sc_mem_bh, NULL, &psc->psc_mapsize) != 0) { |
137 | aprint_error_dev(self, "could not map mem space\n" ); |
138 | return; |
139 | } |
140 | |
141 | /* map interrupt */ |
142 | if (pci_intr_map(pa, &ih) != 0) { |
143 | aprint_error_dev(self, "could not map interrupt\n" ); |
144 | goto fail; |
145 | } |
146 | |
147 | /* establish interrupt */ |
148 | intrstr = pci_intr_string(psc->psc_pc, ih, intrbuf, sizeof(intrbuf)); |
149 | sc->sc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_NET, bwi_intr, sc); |
150 | if (sc->sc_ih == NULL) { |
151 | aprint_error_dev(self, "could not establish interrupt" ); |
152 | if (intrstr != NULL) |
153 | aprint_error(" at %s" , intrstr); |
154 | aprint_error("\n" ); |
155 | goto fail; |
156 | } |
157 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
158 | |
159 | /* we need to access PCI config space from the driver */ |
160 | sc->sc_conf_write = bwi_pci_conf_write; |
161 | sc->sc_conf_read = bwi_pci_conf_read; |
162 | |
163 | reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); |
164 | |
165 | sc->sc_pci_revid = PCI_REVISION(pa->pa_class); |
166 | sc->sc_pci_did = PCI_PRODUCT(pa->pa_id); |
167 | sc->sc_pci_subvid = PCI_VENDOR(reg); |
168 | sc->sc_pci_subdid = PCI_PRODUCT(reg); |
169 | |
170 | if (!pmf_device_register(self, bwi_suspend, bwi_resume)) |
171 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
172 | |
173 | error = bwi_attach(sc); |
174 | if (error) |
175 | goto fail; |
176 | return; |
177 | |
178 | fail: |
179 | if (sc->sc_ih) { |
180 | pci_intr_disestablish(psc->psc_pc, sc->sc_ih); |
181 | sc->sc_ih = NULL; |
182 | } |
183 | if (psc->psc_mapsize) { |
184 | bus_space_unmap(sc->sc_mem_bt, sc->sc_mem_bh, psc->psc_mapsize); |
185 | psc->psc_mapsize = 0; |
186 | } |
187 | return; |
188 | } |
189 | |
190 | int |
191 | bwi_pci_detach(device_t self, int flags) |
192 | { |
193 | struct bwi_pci_softc *psc = device_private(self); |
194 | struct bwi_softc *sc = &psc->psc_bwi; |
195 | |
196 | pmf_device_deregister(self); |
197 | |
198 | bwi_detach(sc); |
199 | |
200 | if (sc->sc_ih != NULL) { |
201 | pci_intr_disestablish(psc->psc_pc, sc->sc_ih); |
202 | sc->sc_ih = NULL; |
203 | } |
204 | |
205 | return (0); |
206 | } |
207 | |
208 | static void |
209 | bwi_pci_conf_write(void *sc, uint32_t reg, uint32_t val) |
210 | { |
211 | struct bwi_pci_softc *psc = (struct bwi_pci_softc *)sc; |
212 | |
213 | pci_conf_write(psc->psc_pc, psc->psc_pcitag, reg, val); |
214 | } |
215 | |
216 | static uint32_t |
217 | bwi_pci_conf_read(void *sc, uint32_t reg) |
218 | { |
219 | struct bwi_pci_softc *psc = (struct bwi_pci_softc *)sc; |
220 | |
221 | return (pci_conf_read(psc->psc_pc, psc->psc_pcitag, reg)); |
222 | } |
223 | |