nexmon – Blame information for rev 1

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1 office 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>
18 #include <linux/module.h>
19  
20 #include <brcm_hw_ids.h>
21 #include <brcmu_wifi.h>
22 #include "core.h"
23 #include "bus.h"
24 #include "debug.h"
25 #include "fwil.h"
26 #include "fwil_types.h"
27 #include "feature.h"
28 #include "common.h"
29  
30  
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  
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  
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  
116 static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp)
117 {
118 char caps[256];
119 enum brcmf_feat_id id;
120 int i;
121  
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 }
132 }
133 }
134  
135 void brcmf_feat_attach(struct brcmf_pub *drvr)
136 {
137 struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0);
138 struct brcmf_pno_macaddr_le pfn_mac;
139 u32 wowl_cap;
140 s32 err;
141  
142 brcmf_feat_firmware_capabilities(ifp);
143  
144 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn");
145 if (drvr->bus_if->wowl_supported)
146 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
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 ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ARP_ND);
151 if (wowl_cap & BRCMF_WOWL_PFN_FOUND)
152 ifp->drvr->feat_flags |=
153 BIT(BRCMF_FEAT_WOWL_ND);
154 if (wowl_cap & BRCMF_WOWL_GTK_FAILURE)
155 ifp->drvr->feat_flags |=
156 BIT(BRCMF_FEAT_WOWL_GTK);
157 }
158 }
159 /* MBSS does not work for 43362 */
160 if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID)
161 ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS);
162 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode");
163 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable");
164 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MFP, "mfp");
165  
166 pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER;
167 err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac,
168 sizeof(pfn_mac));
169 if (!err)
170 ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC);
171  
172 if (drvr->settings->feature_disable) {
173 brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n",
174 ifp->drvr->feat_flags,
175 drvr->settings->feature_disable);
176 ifp->drvr->feat_flags &= ~drvr->settings->feature_disable;
177 }
178  
179 /* set chip related quirks */
180 switch (drvr->bus_if->chip) {
181 case BRCM_CC_43236_CHIP_ID:
182 drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH);
183 break;
184 case BRCM_CC_4329_CHIP_ID:
185 drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC);
186 break;
187 default:
188 /* no quirks */
189 break;
190 }
191  
192 brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
193 }
194  
195 bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id)
196 {
197 return (ifp->drvr->feat_flags & BIT(id));
198 }
199  
200 bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
201 enum brcmf_feat_quirk quirk)
202 {
203 return (ifp->drvr->chip_quirks & BIT(quirk));
204 }