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 * firmware error code received if iovar is unsupported.
29 #define EBRCMF_FEAT_UNSUPPORTED 23
32 * expand feature list to array of feature strings.
34 #define BRCMF_FEAT_DEF(_f) \
36 static const char *brcmf_feat_names
[] = {
43 * expand quirk list to array of quirk strings.
45 #define BRCMF_QUIRK_DEF(_q) \
47 static const char * const brcmf_quirk_names
[] = {
50 #undef BRCMF_QUIRK_DEF
53 * brcmf_feat_debugfs_read() - expose feature info to debugfs.
55 * @seq: sequence for debugfs entry.
56 * @data: raw data pointer.
58 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
60 struct brcmf_bus
*bus_if
= dev_get_drvdata(seq
->private);
61 u32 feats
= bus_if
->drvr
->feat_flags
;
62 u32 quirks
= bus_if
->drvr
->chip_quirks
;
65 seq_printf(seq
, "Features: %08x\n", feats
);
66 for (id
= 0; id
< BRCMF_FEAT_LAST
; id
++)
68 seq_printf(seq
, "\t%s\n", brcmf_feat_names
[id
]);
69 seq_printf(seq
, "\nQuirks: %08x\n", quirks
);
70 for (id
= 0; id
< BRCMF_FEAT_QUIRK_LAST
; id
++)
72 seq_printf(seq
, "\t%s\n", brcmf_quirk_names
[id
]);
76 static int brcmf_feat_debugfs_read(struct seq_file
*seq
, void *data
)
83 * brcmf_feat_iovar_int_get() - determine feature through iovar query.
85 * @ifp: interface to query.
89 static void brcmf_feat_iovar_int_get(struct brcmf_if
*ifp
,
90 enum brcmf_feat_id id
, char *name
)
95 err
= brcmf_fil_iovar_int_get(ifp
, name
, &data
);
97 brcmf_dbg(INFO
, "enabling feature: %s\n", brcmf_feat_names
[id
]);
98 ifp
->drvr
->feat_flags
|= BIT(id
);
100 brcmf_dbg(TRACE
, "%s feature check failed: %d\n",
101 brcmf_feat_names
[id
], err
);
105 void brcmf_feat_attach(struct brcmf_pub
*drvr
)
107 struct brcmf_if
*ifp
= drvr
->iflist
[0];
109 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_MCHAN
, "mchan");
110 if (drvr
->bus_if
->wowl_supported
)
111 brcmf_feat_iovar_int_get(ifp
, BRCMF_FEAT_WOWL
, "wowl");
113 /* set chip related quirks */
114 switch (drvr
->bus_if
->chip
) {
115 case BRCM_CC_43236_CHIP_ID
:
116 drvr
->chip_quirks
|= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH
);
118 case BRCM_CC_4329_CHIP_ID
:
119 drvr
->chip_quirks
|= BIT(BRCMF_FEAT_QUIRK_NEED_MPC
);
126 brcmf_debugfs_add_entry(drvr
, "features", brcmf_feat_debugfs_read
);
129 bool brcmf_feat_is_enabled(struct brcmf_if
*ifp
, enum brcmf_feat_id id
)
131 return (ifp
->drvr
->feat_flags
& BIT(id
));
134 bool brcmf_feat_is_quirk_enabled(struct brcmf_if
*ifp
,
135 enum brcmf_feat_quirk quirk
)
137 return (ifp
->drvr
->chip_quirks
& BIT(quirk
));