2 * Copyright (c) 2014 Broadcom Corporation
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.
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.
17 #include <linux/netdevice.h>
18 #include <linux/module.h>
20 #include <brcm_hw_ids.h>
21 #include <brcmu_wifi.h>
26 #include "fwil_types.h"
30 #define BRCMF_FW_UNSUPPORTED 23
33 * expand feature list to array of feature strings.
35 #define BRCMF_FEAT_DEF(_f) \
37 static const char *brcmf_feat_names
[] = {
42 struct brcmf_feat_fwcap
{
43 enum brcmf_feat_id feature
;
44 const char * const fwcap_id
;
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" },
55 * expand quirk list to array of quirk strings.
57 #define BRCMF_QUIRK_DEF(_q) \
59 static const char * const brcmf_quirk_names
[] = {
62 #undef BRCMF_QUIRK_DEF
65 * brcmf_feat_debugfs_read() - expose feature info to debugfs.
67 * @seq: sequence for debugfs entry.
68 * @data: raw data pointer.
70 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
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
;
77 seq_printf(seq
, "Features: %08x\n", feats
);
78 for (id
= 0; id
< BRCMF_FEAT_LAST
; 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
++)
84 seq_printf(seq
, "\t%s\n", brcmf_quirk_names
[id
]);
88 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
95 * brcmf_feat_iovar_int_get() - determine feature through iovar query.
97 * @ifp: interface to query.
101 static void brcmf_feat_iovar_int_get(struct brcmf_if
*ifp
,
102 enum brcmf_feat_id id
, char *name
)
107 err
= brcmf_fil_iovar_int_get(ifp
, name
, &data
);
109 brcmf_dbg(INFO
, "enabling feature: %s\n", brcmf_feat_names
[id
]);
110 ifp
->drvr
->feat_flags
|= BIT(id
);
112 brcmf_dbg(TRACE
, "%s feature check failed: %d\n",
113 brcmf_feat_names
[id
], err
);
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
)
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
);
128 brcmf_dbg(TRACE
, "%s feature check failed: %d\n",
129 brcmf_feat_names
[id
], err
);
133 static void brcmf_feat_firmware_capabilities(struct brcmf_if
*ifp
)
136 enum brcmf_feat_id id
;
139 brcmf_fil_iovar_data_get(ifp
, "cap", caps
, sizeof(caps
));
140 brcmf_dbg(INFO
, "[ %s]\n", caps
);
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
);
152 void brcmf_feat_attach(struct brcmf_pub
*drvr
)
154 struct brcmf_if
*ifp
= brcmf_get_ifp(drvr
, 0);
155 struct brcmf_pno_macaddr_le pfn_mac
;
156 struct brcmf_gscan_config gscan_cfg
;
160 brcmf_feat_firmware_capabilities(ifp
);
161 memset(&gscan_cfg
, 0, sizeof(gscan_cfg
));
162 if (drvr
->bus_if
->chip
!= BRCM_CC_43430_CHIP_ID
)
163 brcmf_feat_iovar_data_set(ifp
, BRCMF_FEAT_GSCAN
,
165 &gscan_cfg
, sizeof(gscan_cfg
));
166 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_PNO
, "pfn");
167 if (drvr
->bus_if
->wowl_supported
)
168 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_WOWL
, "wowl");
169 if (brcmf_feat_is_enabled(ifp
, BRCMF_FEAT_WOWL
)) {
170 err
= brcmf_fil_iovar_int_get(ifp
, "wowl_cap", &wowl_cap
);
172 ifp
->drvr
->feat_flags
|= BIT(BRCMF_FEAT_WOWL_ARP_ND
);
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
);
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
);
184 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_RSDB
, "rsdb_mode");
185 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_TDLS
, "tdls_enable");
186 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_MFP
, "mfp");
188 pfn_mac
.version
= BRCMF_PFN_MACADDR_CFG_VER
;
189 err
= brcmf_fil_iovar_data_get(ifp
, "pfn_macaddr", &pfn_mac
,
192 ifp
->drvr
->feat_flags
|= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC
);
194 if (drvr
->settings
->feature_disable
) {
195 brcmf_dbg(INFO
, "Features: 0x%02x, disable: 0x%02x\n",
196 ifp
->drvr
->feat_flags
,
197 drvr
->settings
->feature_disable
);
198 ifp
->drvr
->feat_flags
&= ~drvr
->settings
->feature_disable
;
200 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_FWSUP
, "sup_wpa");
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
);
207 case BRCM_CC_4329_CHIP_ID
:
208 drvr
->chip_quirks
|= BIT(BRCMF_FEAT_QUIRK_NEED_MPC
);
215 brcmf_debugfs_add_entry(drvr
, "features", brcmf_feat_debugfs_read
);
218 bool brcmf_feat_is_enabled(struct brcmf_if
*ifp
, enum brcmf_feat_id id
)
220 return (ifp
->drvr
->feat_flags
& BIT(id
));
223 bool brcmf_feat_is_quirk_enabled(struct brcmf_if
*ifp
,
224 enum brcmf_feat_quirk quirk
)
226 return (ifp
->drvr
->chip_quirks
& BIT(quirk
));