1 | /* $NetBSD: if_ral_cardbus.c,v 1.24 2016/07/14 10:19:06 msaitoh Exp $ */ |
2 | /* $OpenBSD: if_ral_cardbus.c,v 1.6 2006/01/09 20:03:31 damien Exp $ */ |
3 | |
4 | /*- |
5 | * Copyright (c) 2005, 2006 |
6 | * Damien Bergamini <damien.bergamini@free.fr> |
7 | * |
8 | * Permission to use, copy, modify, and distribute this software for any |
9 | * purpose with or without fee is hereby granted, provided that the above |
10 | * copyright notice and this permission notice appear in all copies. |
11 | * |
12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
19 | */ |
20 | |
21 | /* |
22 | * CardBus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. |
23 | */ |
24 | #include <sys/cdefs.h> |
25 | __KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.24 2016/07/14 10:19:06 msaitoh Exp $" ); |
26 | |
27 | |
28 | #include <sys/param.h> |
29 | #include <sys/sockio.h> |
30 | #include <sys/mbuf.h> |
31 | #include <sys/kernel.h> |
32 | #include <sys/socket.h> |
33 | #include <sys/systm.h> |
34 | #include <sys/malloc.h> |
35 | #include <sys/callout.h> |
36 | #include <sys/device.h> |
37 | |
38 | #include <sys/bus.h> |
39 | #include <sys/intr.h> |
40 | |
41 | #include <net/if.h> |
42 | #include <net/if_dl.h> |
43 | #include <net/if_media.h> |
44 | #include <net/if_ether.h> |
45 | |
46 | #include <netinet/in.h> |
47 | |
48 | #include <net80211/ieee80211_var.h> |
49 | #include <net80211/ieee80211_amrr.h> |
50 | #include <net80211/ieee80211_rssadapt.h> |
51 | #include <net80211/ieee80211_radiotap.h> |
52 | |
53 | #include <dev/ic/rt2560var.h> |
54 | #include <dev/ic/rt2661var.h> |
55 | |
56 | #include <dev/pci/pcireg.h> |
57 | #include <dev/pci/pcivar.h> |
58 | #include <dev/pci/pcidevs.h> |
59 | |
60 | #include <dev/cardbus/cardbusvar.h> |
61 | |
62 | static struct ral_opns { |
63 | int (*attach)(void *, int); |
64 | int (*detach)(void *); |
65 | int (*intr)(void *); |
66 | |
67 | } ral_rt2560_opns = { |
68 | rt2560_attach, |
69 | rt2560_detach, |
70 | rt2560_intr |
71 | |
72 | }, ral_rt2661_opns = { |
73 | rt2661_attach, |
74 | rt2661_detach, |
75 | rt2661_intr |
76 | }; |
77 | |
78 | struct ral_cardbus_softc { |
79 | union { |
80 | struct rt2560_softc sc_rt2560; |
81 | struct rt2661_softc sc_rt2661; |
82 | } u; |
83 | #define sc_sc u.sc_rt2560 |
84 | |
85 | /* cardbus specific goo */ |
86 | struct ral_opns *sc_opns; |
87 | cardbus_devfunc_t sc_ct; |
88 | pcitag_t sc_tag; |
89 | void *sc_ih; |
90 | bus_size_t sc_mapsize; |
91 | pcireg_t sc_bar_val; |
92 | }; |
93 | |
94 | int ral_cardbus_match(device_t, cfdata_t, void *); |
95 | void ral_cardbus_attach(device_t, device_t, void *); |
96 | int ral_cardbus_detach(device_t, int); |
97 | |
98 | CFATTACH_DECL_NEW(ral_cardbus, sizeof (struct ral_cardbus_softc), |
99 | ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); |
100 | |
101 | int ral_cardbus_enable(struct rt2560_softc *); |
102 | void ral_cardbus_disable(struct rt2560_softc *); |
103 | void ral_cardbus_power(struct rt2560_softc *, int); |
104 | void ral_cardbus_setup(struct ral_cardbus_softc *); |
105 | |
106 | int |
107 | ral_cardbus_match(device_t parent, cfdata_t cfdata, void *aux) |
108 | { |
109 | struct cardbus_attach_args *ca = aux; |
110 | |
111 | if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { |
112 | switch (PCI_PRODUCT(ca->ca_id)) { |
113 | case PCI_PRODUCT_RALINK_RT2560: |
114 | case PCI_PRODUCT_RALINK_RT2561: |
115 | case PCI_PRODUCT_RALINK_RT2561S: |
116 | case PCI_PRODUCT_RALINK_RT2661: |
117 | return 1; |
118 | default: |
119 | return 0; |
120 | } |
121 | } |
122 | |
123 | return 0; |
124 | } |
125 | |
126 | void |
127 | ral_cardbus_attach(device_t parent, device_t self, void *aux) |
128 | { |
129 | struct ral_cardbus_softc *csc = device_private(self); |
130 | struct rt2560_softc *sc = &csc->sc_sc; |
131 | struct cardbus_attach_args *ca = aux; |
132 | cardbus_devfunc_t ct = ca->ca_ct; |
133 | char devinfo[256]; |
134 | bus_addr_t base; |
135 | int error, revision; |
136 | |
137 | pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); |
138 | revision = PCI_REVISION(ca->ca_class); |
139 | aprint_normal(": %s (rev. 0x%02x)\n" , devinfo, revision); |
140 | |
141 | csc->sc_opns = |
142 | (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? |
143 | &ral_rt2560_opns : &ral_rt2661_opns; |
144 | |
145 | sc->sc_dev = self; |
146 | sc->sc_dmat = ca->ca_dmat; |
147 | csc->sc_ct = ct; |
148 | csc->sc_tag = ca->ca_tag; |
149 | |
150 | /* power management hooks */ |
151 | sc->sc_enable = ral_cardbus_enable; |
152 | sc->sc_disable = ral_cardbus_disable; |
153 | |
154 | /* map control/status registers */ |
155 | error = Cardbus_mapreg_map(ct, PCI_BAR0, |
156 | PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, |
157 | &csc->sc_mapsize); |
158 | if (error != 0) { |
159 | aprint_error(": could not map memory space\n" ); |
160 | return; |
161 | } |
162 | |
163 | csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; |
164 | |
165 | /* set up the PCI configuration registers */ |
166 | ral_cardbus_setup(csc); |
167 | |
168 | (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); |
169 | |
170 | Cardbus_function_disable(ct); |
171 | } |
172 | |
173 | int |
174 | ral_cardbus_detach(device_t self, int flags) |
175 | { |
176 | struct ral_cardbus_softc *csc = device_private(self); |
177 | struct rt2560_softc *sc = &csc->sc_sc; |
178 | cardbus_devfunc_t ct = csc->sc_ct; |
179 | int error; |
180 | |
181 | error = (*csc->sc_opns->detach)(sc); |
182 | if (error != 0) |
183 | return error; |
184 | |
185 | /* unhook the interrupt handler */ |
186 | if (csc->sc_ih != NULL) { |
187 | Cardbus_intr_disestablish(ct, csc->sc_ih); |
188 | csc->sc_ih = NULL; |
189 | } |
190 | |
191 | /* release bus space and close window */ |
192 | Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, |
193 | csc->sc_mapsize); |
194 | |
195 | return 0; |
196 | } |
197 | |
198 | int |
199 | ral_cardbus_enable(struct rt2560_softc *sc) |
200 | { |
201 | struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; |
202 | cardbus_devfunc_t ct = csc->sc_ct; |
203 | |
204 | /* power on the socket */ |
205 | Cardbus_function_enable(ct); |
206 | |
207 | /* setup the PCI configuration registers */ |
208 | ral_cardbus_setup(csc); |
209 | |
210 | /* map and establish the interrupt handler */ |
211 | csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, |
212 | csc->sc_opns->intr, sc); |
213 | if (csc->sc_ih == NULL) { |
214 | aprint_error_dev(sc->sc_dev, |
215 | "could not establish interrupt\n" ); |
216 | Cardbus_function_disable(ct); |
217 | return 1; |
218 | } |
219 | |
220 | return 0; |
221 | } |
222 | |
223 | void |
224 | ral_cardbus_disable(struct rt2560_softc *sc) |
225 | { |
226 | struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; |
227 | cardbus_devfunc_t ct = csc->sc_ct; |
228 | |
229 | /* unhook the interrupt handler */ |
230 | Cardbus_intr_disestablish(ct, csc->sc_ih); |
231 | csc->sc_ih = NULL; |
232 | |
233 | /* power down the socket */ |
234 | Cardbus_function_disable(ct); |
235 | } |
236 | |
237 | void |
238 | ral_cardbus_setup(struct ral_cardbus_softc *csc) |
239 | { |
240 | cardbus_devfunc_t ct = csc->sc_ct; |
241 | pcireg_t reg; |
242 | |
243 | /* program the BAR */ |
244 | Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); |
245 | |
246 | /* enable the appropriate bits in the PCI CSR */ |
247 | reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); |
248 | reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; |
249 | Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); |
250 | } |
251 | |