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 drvr->bus_if->chip != BRCM_CC_4345_CHIP_ID)
164 brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN,
166 &gscan_cfg, sizeof(gscan_cfg));
167 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn");
168 if (drvr->bus_if->wowl_supported)
169 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
170 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) {
171 err = brcmf_fil_iovar_int_get(ifp, "wowl_cap", &wowl_cap);
173 ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ARP_ND);
174 if (wowl_cap & BRCMF_WOWL_PFN_FOUND)
175 ifp->drvr->feat_flags |=
176 BIT(BRCMF_FEAT_WOWL_ND);
177 if (wowl_cap & BRCMF_WOWL_GTK_FAILURE)
178 ifp->drvr->feat_flags |=
179 BIT(BRCMF_FEAT_WOWL_GTK);
182 /* MBSS does not work for 43362 */
183 if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID)
184 ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS);
185 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode");
186 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable");
187 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MFP, "mfp");
189 pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER;
190 err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac,
193 ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC);
195 brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
197 if (drvr->settings->feature_disable) {
198 brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n",
199 ifp->drvr->feat_flags,
200 drvr->settings->feature_disable);
201 ifp->drvr->feat_flags &= ~drvr->settings->feature_disable;
204 /* set chip related quirks */
205 switch (drvr->bus_if->chip) {
206 case BRCM_CC_43236_CHIP_ID:
207 drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH);
209 case BRCM_CC_4329_CHIP_ID:
210 drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC);
217 brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
220 bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id)
222 return (ifp->drvr->feat_flags & BIT(id));
225 bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
226 enum brcmf_feat_quirk quirk)
228 return (ifp->drvr->chip_quirks & BIT(quirk));