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>
19 #include <brcm_hw_ids.h>
27 * expand feature list to array of feature strings.
29 #define BRCMF_FEAT_DEF(_f) \
31 static const char *brcmf_feat_names
[] = {
38 * expand quirk list to array of quirk strings.
40 #define BRCMF_QUIRK_DEF(_q) \
42 static const char * const brcmf_quirk_names
[] = {
45 #undef BRCMF_QUIRK_DEF
48 * brcmf_feat_debugfs_read() - expose feature info to debugfs.
50 * @seq: sequence for debugfs entry.
51 * @data: raw data pointer.
53 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
55 struct brcmf_bus
*bus_if
= dev_get_drvdata(seq
->private);
56 u32 feats
= bus_if
->drvr
->feat_flags
;
57 u32 quirks
= bus_if
->drvr
->chip_quirks
;
60 seq_printf(seq
, "Features: %08x\n", feats
);
61 for (id
= 0; id
< BRCMF_FEAT_LAST
; id
++)
63 seq_printf(seq
, "\t%s\n", brcmf_feat_names
[id
]);
64 seq_printf(seq
, "\nQuirks: %08x\n", quirks
);
65 for (id
= 0; id
< BRCMF_FEAT_QUIRK_LAST
; id
++)
67 seq_printf(seq
, "\t%s\n", brcmf_quirk_names
[id
]);
71 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
78 * brcmf_feat_iovar_int_get() - determine feature through iovar query.
80 * @ifp: interface to query.
84 static void brcmf_feat_iovar_int_get(struct brcmf_if
*ifp
,
85 enum brcmf_feat_id id
, char *name
)
90 err
= brcmf_fil_iovar_int_get(ifp
, name
, &data
);
92 brcmf_dbg(INFO
, "enabling feature: %s\n", brcmf_feat_names
[id
]);
93 ifp
->drvr
->feat_flags
|= BIT(id
);
95 brcmf_dbg(TRACE
, "%s feature check failed: %d\n",
96 brcmf_feat_names
[id
], err
);
101 * brcmf_feat_iovar_int_set() - determine feature through iovar set.
103 * @ifp: interface to query.
107 static void brcmf_feat_iovar_int_set(struct brcmf_if
*ifp
,
108 enum brcmf_feat_id id
, char *name
, u32 val
)
112 err
= brcmf_fil_iovar_int_set(ifp
, name
, val
);
114 brcmf_dbg(INFO
, "enabling feature: %s\n", brcmf_feat_names
[id
]);
115 ifp
->drvr
->feat_flags
|= BIT(id
);
117 brcmf_dbg(TRACE
, "%s feature check failed: %d\n",
118 brcmf_feat_names
[id
], err
);
122 void brcmf_feat_attach(struct brcmf_pub
*drvr
)
124 struct brcmf_if
*ifp
= drvr
->iflist
[0];
126 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_MCHAN
, "mchan");
127 if (drvr
->bus_if
->wowl_supported
)
128 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_WOWL
, "wowl");
129 if (drvr
->bus_if
->chip
!= BRCM_CC_43362_CHIP_ID
)
130 brcmf_feat_iovar_int_set(ifp
, BRCMF_FEAT_MBSS
, "mbss", 0);
132 /* set chip related quirks */
133 switch (drvr
->bus_if
->chip
) {
134 case BRCM_CC_43236_CHIP_ID
:
135 drvr
->chip_quirks
|= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH
);
137 case BRCM_CC_4329_CHIP_ID
:
138 drvr
->chip_quirks
|= BIT(BRCMF_FEAT_QUIRK_NEED_MPC
);
145 brcmf_debugfs_add_entry(drvr
, "features", brcmf_feat_debugfs_read
);
148 bool brcmf_feat_is_enabled(struct brcmf_if
*ifp
, enum brcmf_feat_id id
)
150 return (ifp
->drvr
->feat_flags
& BIT(id
));
153 bool brcmf_feat_is_quirk_enabled(struct brcmf_if
*ifp
,
154 enum brcmf_feat_quirk quirk
)
156 return (ifp
->drvr
->chip_quirks
& BIT(quirk
));