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c08437b4 AS |
1 | /* |
2 | * Copyright (c) 2014 Broadcom Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include <linux/netdevice.h> | |
8268c201 | 18 | #include <linux/module.h> |
c08437b4 AS |
19 | |
20 | #include <brcm_hw_ids.h> | |
48ed16e8 | 21 | #include <brcmu_wifi.h> |
122d3d04 | 22 | #include "core.h" |
d14f78b9 | 23 | #include "bus.h" |
a8e8ed34 | 24 | #include "debug.h" |
c08437b4 | 25 | #include "fwil.h" |
48ed16e8 | 26 | #include "fwil_types.h" |
c08437b4 | 27 | #include "feature.h" |
7d34b056 | 28 | #include "common.h" |
c08437b4 | 29 | |
8268c201 | 30 | |
c08437b4 AS |
31 | /* |
32 | * expand feature list to array of feature strings. | |
33 | */ | |
34 | #define BRCMF_FEAT_DEF(_f) \ | |
35 | #_f, | |
36 | static const char *brcmf_feat_names[] = { | |
37 | BRCMF_FEAT_LIST | |
38 | }; | |
39 | #undef BRCMF_FEAT_DEF | |
40 | ||
ec64241c AS |
41 | struct brcmf_feat_fwcap { |
42 | enum brcmf_feat_id feature; | |
43 | const char * const fwcap_id; | |
44 | }; | |
45 | ||
46 | static const struct brcmf_feat_fwcap brcmf_fwcap_map[] = { | |
47 | { BRCMF_FEAT_MBSS, "mbss" }, | |
48 | { BRCMF_FEAT_MCHAN, "mchan" }, | |
49 | { BRCMF_FEAT_P2P, "p2p" }, | |
50 | }; | |
51 | ||
c08437b4 AS |
52 | #ifdef DEBUG |
53 | /* | |
54 | * expand quirk list to array of quirk strings. | |
55 | */ | |
56 | #define BRCMF_QUIRK_DEF(_q) \ | |
57 | #_q, | |
58 | static const char * const brcmf_quirk_names[] = { | |
59 | BRCMF_QUIRK_LIST | |
60 | }; | |
61 | #undef BRCMF_QUIRK_DEF | |
62 | ||
63 | /** | |
64 | * brcmf_feat_debugfs_read() - expose feature info to debugfs. | |
65 | * | |
66 | * @seq: sequence for debugfs entry. | |
67 | * @data: raw data pointer. | |
68 | */ | |
69 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
70 | { | |
71 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
72 | u32 feats = bus_if->drvr->feat_flags; | |
73 | u32 quirks = bus_if->drvr->chip_quirks; | |
74 | int id; | |
75 | ||
76 | seq_printf(seq, "Features: %08x\n", feats); | |
77 | for (id = 0; id < BRCMF_FEAT_LAST; id++) | |
78 | if (feats & BIT(id)) | |
79 | seq_printf(seq, "\t%s\n", brcmf_feat_names[id]); | |
80 | seq_printf(seq, "\nQuirks: %08x\n", quirks); | |
81 | for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++) | |
82 | if (quirks & BIT(id)) | |
83 | seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]); | |
84 | return 0; | |
85 | } | |
86 | #else | |
87 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | #endif /* DEBUG */ | |
92 | ||
93 | /** | |
94 | * brcmf_feat_iovar_int_get() - determine feature through iovar query. | |
95 | * | |
96 | * @ifp: interface to query. | |
97 | * @id: feature id. | |
98 | * @name: iovar name. | |
99 | */ | |
100 | static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp, | |
101 | enum brcmf_feat_id id, char *name) | |
102 | { | |
103 | u32 data; | |
104 | int err; | |
105 | ||
106 | err = brcmf_fil_iovar_int_get(ifp, name, &data); | |
107 | if (err == 0) { | |
108 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); | |
109 | ifp->drvr->feat_flags |= BIT(id); | |
110 | } else { | |
111 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", | |
112 | brcmf_feat_names[id], err); | |
113 | } | |
114 | } | |
115 | ||
ec64241c | 116 | static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp) |
a44aa400 | 117 | { |
ec64241c AS |
118 | char caps[256]; |
119 | enum brcmf_feat_id id; | |
120 | int i; | |
a44aa400 | 121 | |
ec64241c AS |
122 | brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps)); |
123 | brcmf_dbg(INFO, "[ %s]\n", caps); | |
124 | ||
125 | for (i = 0; i < ARRAY_SIZE(brcmf_fwcap_map); i++) { | |
126 | if (strnstr(caps, brcmf_fwcap_map[i].fwcap_id, sizeof(caps))) { | |
127 | id = brcmf_fwcap_map[i].feature; | |
128 | brcmf_dbg(INFO, "enabling feature: %s\n", | |
129 | brcmf_feat_names[id]); | |
130 | ifp->drvr->feat_flags |= BIT(id); | |
131 | } | |
a44aa400 HM |
132 | } |
133 | } | |
134 | ||
c08437b4 AS |
135 | void brcmf_feat_attach(struct brcmf_pub *drvr) |
136 | { | |
46f3b6ee | 137 | struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0); |
48ed16e8 | 138 | struct brcmf_pno_macaddr_le pfn_mac; |
5c22fb85 | 139 | u32 wowl_cap; |
48ed16e8 | 140 | s32 err; |
c08437b4 | 141 | |
ec64241c AS |
142 | brcmf_feat_firmware_capabilities(ifp); |
143 | ||
7a7a87dc | 144 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn"); |
4eb3af7c HM |
145 | if (drvr->bus_if->wowl_supported) |
146 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl"); | |
5c22fb85 HM |
147 | if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) { |
148 | err = brcmf_fil_iovar_int_get(ifp, "wowl_cap", &wowl_cap); | |
149 | if (!err) { | |
150 | if (wowl_cap & BRCMF_WOWL_PFN_FOUND) | |
151 | ifp->drvr->feat_flags |= | |
152 | BIT(BRCMF_FEAT_WOWL_ND); | |
153 | if (wowl_cap & BRCMF_WOWL_GTK_FAILURE) | |
154 | ifp->drvr->feat_flags |= | |
155 | BIT(BRCMF_FEAT_WOWL_GTK); | |
156 | } | |
157 | } | |
ec64241c AS |
158 | /* MBSS does not work for 43362 */ |
159 | if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID) | |
160 | ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS); | |
8abffd81 | 161 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode"); |
a7b82d47 | 162 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable"); |
c08437b4 | 163 | |
48ed16e8 HM |
164 | pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER; |
165 | err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac, | |
166 | sizeof(pfn_mac)); | |
167 | if (!err) | |
168 | ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC); | |
169 | ||
7d34b056 | 170 | if (drvr->settings->feature_disable) { |
8268c201 | 171 | brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n", |
7d34b056 HM |
172 | ifp->drvr->feat_flags, |
173 | drvr->settings->feature_disable); | |
174 | ifp->drvr->feat_flags &= ~drvr->settings->feature_disable; | |
8268c201 HM |
175 | } |
176 | ||
c08437b4 AS |
177 | /* set chip related quirks */ |
178 | switch (drvr->bus_if->chip) { | |
179 | case BRCM_CC_43236_CHIP_ID: | |
180 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH); | |
181 | break; | |
182 | case BRCM_CC_4329_CHIP_ID: | |
183 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC); | |
184 | break; | |
185 | default: | |
186 | /* no quirks */ | |
187 | break; | |
188 | } | |
189 | ||
190 | brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read); | |
191 | } | |
192 | ||
193 | bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id) | |
194 | { | |
195 | return (ifp->drvr->feat_flags & BIT(id)); | |
196 | } | |
197 | ||
198 | bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp, | |
199 | enum brcmf_feat_quirk quirk) | |
200 | { | |
201 | return (ifp->drvr->chip_quirks & BIT(quirk)); | |
202 | } |