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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> | |
122d3d04 | 21 | #include "core.h" |
d14f78b9 | 22 | #include "bus.h" |
a8e8ed34 | 23 | #include "debug.h" |
c08437b4 AS |
24 | #include "fwil.h" |
25 | #include "feature.h" | |
26 | ||
8268c201 HM |
27 | |
28 | /* Module param feature_disable (global for all devices) */ | |
29 | static int brcmf_feature_disable; | |
30 | module_param_named(feature_disable, brcmf_feature_disable, int, 0); | |
31 | MODULE_PARM_DESC(feature_disable, "Disable features"); | |
32 | ||
c08437b4 AS |
33 | /* |
34 | * expand feature list to array of feature strings. | |
35 | */ | |
36 | #define BRCMF_FEAT_DEF(_f) \ | |
37 | #_f, | |
38 | static const char *brcmf_feat_names[] = { | |
39 | BRCMF_FEAT_LIST | |
40 | }; | |
41 | #undef BRCMF_FEAT_DEF | |
42 | ||
43 | #ifdef DEBUG | |
44 | /* | |
45 | * expand quirk list to array of quirk strings. | |
46 | */ | |
47 | #define BRCMF_QUIRK_DEF(_q) \ | |
48 | #_q, | |
49 | static const char * const brcmf_quirk_names[] = { | |
50 | BRCMF_QUIRK_LIST | |
51 | }; | |
52 | #undef BRCMF_QUIRK_DEF | |
53 | ||
54 | /** | |
55 | * brcmf_feat_debugfs_read() - expose feature info to debugfs. | |
56 | * | |
57 | * @seq: sequence for debugfs entry. | |
58 | * @data: raw data pointer. | |
59 | */ | |
60 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
61 | { | |
62 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
63 | u32 feats = bus_if->drvr->feat_flags; | |
64 | u32 quirks = bus_if->drvr->chip_quirks; | |
65 | int id; | |
66 | ||
67 | seq_printf(seq, "Features: %08x\n", feats); | |
68 | for (id = 0; id < BRCMF_FEAT_LAST; id++) | |
69 | if (feats & BIT(id)) | |
70 | seq_printf(seq, "\t%s\n", brcmf_feat_names[id]); | |
71 | seq_printf(seq, "\nQuirks: %08x\n", quirks); | |
72 | for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++) | |
73 | if (quirks & BIT(id)) | |
74 | seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]); | |
75 | return 0; | |
76 | } | |
77 | #else | |
78 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) | |
79 | { | |
80 | return 0; | |
81 | } | |
82 | #endif /* DEBUG */ | |
83 | ||
84 | /** | |
85 | * brcmf_feat_iovar_int_get() - determine feature through iovar query. | |
86 | * | |
87 | * @ifp: interface to query. | |
88 | * @id: feature id. | |
89 | * @name: iovar name. | |
90 | */ | |
91 | static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp, | |
92 | enum brcmf_feat_id id, char *name) | |
93 | { | |
94 | u32 data; | |
95 | int err; | |
96 | ||
97 | err = brcmf_fil_iovar_int_get(ifp, name, &data); | |
98 | if (err == 0) { | |
99 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); | |
100 | ifp->drvr->feat_flags |= BIT(id); | |
101 | } else { | |
102 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", | |
103 | brcmf_feat_names[id], err); | |
104 | } | |
105 | } | |
106 | ||
a44aa400 HM |
107 | /** |
108 | * brcmf_feat_iovar_int_set() - determine feature through iovar set. | |
109 | * | |
110 | * @ifp: interface to query. | |
111 | * @id: feature id. | |
112 | * @name: iovar name. | |
113 | */ | |
114 | static void brcmf_feat_iovar_int_set(struct brcmf_if *ifp, | |
115 | enum brcmf_feat_id id, char *name, u32 val) | |
116 | { | |
117 | int err; | |
118 | ||
119 | err = brcmf_fil_iovar_int_set(ifp, name, val); | |
120 | if (err == 0) { | |
121 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); | |
122 | ifp->drvr->feat_flags |= BIT(id); | |
123 | } else { | |
124 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", | |
125 | brcmf_feat_names[id], err); | |
126 | } | |
127 | } | |
128 | ||
c08437b4 AS |
129 | void brcmf_feat_attach(struct brcmf_pub *drvr) |
130 | { | |
46f3b6ee | 131 | struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0); |
c08437b4 AS |
132 | |
133 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan"); | |
7a7a87dc | 134 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn"); |
4eb3af7c HM |
135 | if (drvr->bus_if->wowl_supported) |
136 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl"); | |
f93a25b3 AS |
137 | if (drvr->bus_if->chip != BRCM_CC_43362_CHIP_ID) |
138 | brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0); | |
2b560d71 | 139 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_P2P, "p2p"); |
c08437b4 | 140 | |
8268c201 HM |
141 | if (brcmf_feature_disable) { |
142 | brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n", | |
143 | ifp->drvr->feat_flags, brcmf_feature_disable); | |
144 | ifp->drvr->feat_flags &= ~brcmf_feature_disable; | |
145 | } | |
146 | ||
c08437b4 AS |
147 | /* set chip related quirks */ |
148 | switch (drvr->bus_if->chip) { | |
149 | case BRCM_CC_43236_CHIP_ID: | |
150 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH); | |
151 | break; | |
152 | case BRCM_CC_4329_CHIP_ID: | |
153 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC); | |
154 | break; | |
155 | default: | |
156 | /* no quirks */ | |
157 | break; | |
158 | } | |
159 | ||
160 | brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read); | |
161 | } | |
162 | ||
163 | bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id) | |
164 | { | |
165 | return (ifp->drvr->feat_flags & BIT(id)); | |
166 | } | |
167 | ||
168 | bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp, | |
169 | enum brcmf_feat_quirk quirk) | |
170 | { | |
171 | return (ifp->drvr->chip_quirks & BIT(quirk)); | |
172 | } |