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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 | |
9fe929aa | 30 | #define BRCMF_FW_UNSUPPORTED 23 |
8268c201 | 31 | |
c08437b4 AS |
32 | /* |
33 | * expand feature list to array of feature strings. | |
34 | */ | |
35 | #define BRCMF_FEAT_DEF(_f) \ | |
36 | #_f, | |
37 | static const char *brcmf_feat_names[] = { | |
38 | BRCMF_FEAT_LIST | |
39 | }; | |
40 | #undef BRCMF_FEAT_DEF | |
41 | ||
ec64241c AS |
42 | struct brcmf_feat_fwcap { |
43 | enum brcmf_feat_id feature; | |
44 | const char * const fwcap_id; | |
45 | }; | |
46 | ||
47 | static const struct brcmf_feat_fwcap brcmf_fwcap_map[] = { | |
48 | { BRCMF_FEAT_MBSS, "mbss" }, | |
49 | { BRCMF_FEAT_MCHAN, "mchan" }, | |
50 | { BRCMF_FEAT_P2P, "p2p" }, | |
51 | }; | |
52 | ||
c08437b4 AS |
53 | #ifdef DEBUG |
54 | /* | |
55 | * expand quirk list to array of quirk strings. | |
56 | */ | |
57 | #define BRCMF_QUIRK_DEF(_q) \ | |
58 | #_q, | |
59 | static const char * const brcmf_quirk_names[] = { | |
60 | BRCMF_QUIRK_LIST | |
61 | }; | |
62 | #undef BRCMF_QUIRK_DEF | |
63 | ||
64 | /** | |
65 | * brcmf_feat_debugfs_read() - expose feature info to debugfs. | |
66 | * | |
67 | * @seq: sequence for debugfs entry. | |
68 | * @data: raw data pointer. | |
69 | */ | |
70 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
71 | { | |
72 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
73 | u32 feats = bus_if->drvr->feat_flags; | |
74 | u32 quirks = bus_if->drvr->chip_quirks; | |
75 | int id; | |
76 | ||
77 | seq_printf(seq, "Features: %08x\n", feats); | |
78 | for (id = 0; id < BRCMF_FEAT_LAST; id++) | |
79 | if (feats & BIT(id)) | |
80 | seq_printf(seq, "\t%s\n", brcmf_feat_names[id]); | |
81 | seq_printf(seq, "\nQuirks: %08x\n", quirks); | |
82 | for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++) | |
83 | if (quirks & BIT(id)) | |
84 | seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]); | |
85 | return 0; | |
86 | } | |
87 | #else | |
88 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | #endif /* DEBUG */ | |
93 | ||
94 | /** | |
95 | * brcmf_feat_iovar_int_get() - determine feature through iovar query. | |
96 | * | |
97 | * @ifp: interface to query. | |
98 | * @id: feature id. | |
99 | * @name: iovar name. | |
100 | */ | |
101 | static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp, | |
102 | enum brcmf_feat_id id, char *name) | |
103 | { | |
104 | u32 data; | |
105 | int err; | |
106 | ||
107 | err = brcmf_fil_iovar_int_get(ifp, name, &data); | |
108 | if (err == 0) { | |
109 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); | |
110 | ifp->drvr->feat_flags |= BIT(id); | |
111 | } else { | |
112 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", | |
113 | brcmf_feat_names[id], err); | |
114 | } | |
115 | } | |
116 | ||
9fe929aa AS |
117 | static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp, |
118 | enum brcmf_feat_id id, char *name, | |
119 | const void *data, size_t len) | |
120 | { | |
121 | int err; | |
122 | ||
123 | err = brcmf_fil_iovar_data_set(ifp, name, data, len); | |
124 | if (err != -BRCMF_FW_UNSUPPORTED) { | |
125 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); | |
126 | ifp->drvr->feat_flags |= BIT(id); | |
127 | } else { | |
128 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", | |
129 | brcmf_feat_names[id], err); | |
130 | } | |
131 | } | |
132 | ||
ec64241c | 133 | static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp) |
a44aa400 | 134 | { |
ec64241c AS |
135 | char caps[256]; |
136 | enum brcmf_feat_id id; | |
137 | int i; | |
a44aa400 | 138 | |
ec64241c AS |
139 | brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps)); |
140 | brcmf_dbg(INFO, "[ %s]\n", caps); | |
141 | ||
142 | for (i = 0; i < ARRAY_SIZE(brcmf_fwcap_map); i++) { | |
143 | if (strnstr(caps, brcmf_fwcap_map[i].fwcap_id, sizeof(caps))) { | |
144 | id = brcmf_fwcap_map[i].feature; | |
145 | brcmf_dbg(INFO, "enabling feature: %s\n", | |
146 | brcmf_feat_names[id]); | |
147 | ifp->drvr->feat_flags |= BIT(id); | |
148 | } | |
a44aa400 HM |
149 | } |
150 | } | |
151 | ||
c08437b4 AS |
152 | void brcmf_feat_attach(struct brcmf_pub *drvr) |
153 | { | |
46f3b6ee | 154 | struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0); |
48ed16e8 | 155 | struct brcmf_pno_macaddr_le pfn_mac; |
9fe929aa | 156 | struct brcmf_gscan_config gscan_cfg; |
5c22fb85 | 157 | u32 wowl_cap; |
48ed16e8 | 158 | s32 err; |
c08437b4 | 159 | |
ec64241c | 160 | brcmf_feat_firmware_capabilities(ifp); |
9fe929aa | 161 | memset(&gscan_cfg, 0, sizeof(gscan_cfg)); |
e9bf53ab AVS |
162 | if (drvr->bus_if->chip != BRCM_CC_43430_CHIP_ID) |
163 | brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN, | |
164 | "pfn_gscan_cfg", | |
165 | &gscan_cfg, sizeof(gscan_cfg)); | |
7a7a87dc | 166 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn"); |
4eb3af7c HM |
167 | if (drvr->bus_if->wowl_supported) |
168 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl"); | |
5c22fb85 HM |
169 | if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) { |
170 | err = brcmf_fil_iovar_int_get(ifp, "wowl_cap", &wowl_cap); | |
171 | if (!err) { | |
73ef9e64 | 172 | ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ARP_ND); |
5c22fb85 HM |
173 | if (wowl_cap & BRCMF_WOWL_PFN_FOUND) |
174 | ifp->drvr->feat_flags |= | |
175 | BIT(BRCMF_FEAT_WOWL_ND); | |
176 | if (wowl_cap & BRCMF_WOWL_GTK_FAILURE) | |
177 | ifp->drvr->feat_flags |= | |
178 | BIT(BRCMF_FEAT_WOWL_GTK); | |
179 | } | |
180 | } | |
ec64241c AS |
181 | /* MBSS does not work for 43362 */ |
182 | if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID) | |
183 | ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS); | |
8abffd81 | 184 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode"); |
a7b82d47 | 185 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable"); |
240d61a9 | 186 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MFP, "mfp"); |
c08437b4 | 187 | |
48ed16e8 HM |
188 | pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER; |
189 | err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac, | |
190 | sizeof(pfn_mac)); | |
191 | if (!err) | |
192 | ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC); | |
193 | ||
7d34b056 | 194 | if (drvr->settings->feature_disable) { |
8268c201 | 195 | brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n", |
7d34b056 HM |
196 | ifp->drvr->feat_flags, |
197 | drvr->settings->feature_disable); | |
198 | ifp->drvr->feat_flags &= ~drvr->settings->feature_disable; | |
8268c201 | 199 | } |
b8a64f0e | 200 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa"); |
8268c201 | 201 | |
c08437b4 AS |
202 | /* set chip related quirks */ |
203 | switch (drvr->bus_if->chip) { | |
204 | case BRCM_CC_43236_CHIP_ID: | |
205 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH); | |
206 | break; | |
207 | case BRCM_CC_4329_CHIP_ID: | |
208 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC); | |
209 | break; | |
210 | default: | |
211 | /* no quirks */ | |
212 | break; | |
213 | } | |
214 | ||
215 | brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read); | |
216 | } | |
217 | ||
218 | bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id) | |
219 | { | |
220 | return (ifp->drvr->feat_flags & BIT(id)); | |
221 | } | |
222 | ||
223 | bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp, | |
224 | enum brcmf_feat_quirk quirk) | |
225 | { | |
226 | return (ifp->drvr->chip_quirks & BIT(quirk)); | |
227 | } |