nexmon – Blame information for rev 1
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1 | office | 1 | /* |
2 | * Copyright (c) 2014 Broadcom Corporation |
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3 | * |
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4 | * Permission to use, copy, modify, and/or distribute this software for any |
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5 | * purpose with or without fee is hereby granted, provided that the above |
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6 | * copyright notice and this permission notice appear in all copies. |
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7 | * |
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8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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15 | */ |
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16 | |||
17 | #include <linux/netdevice.h> |
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18 | #include <linux/module.h> |
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19 | |||
20 | #include <brcm_hw_ids.h> |
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21 | #include <brcmu_wifi.h> |
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22 | #include "core.h" |
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23 | #include "bus.h" |
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24 | #include "debug.h" |
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25 | #include "fwil.h" |
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26 | #include "fwil_types.h" |
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27 | #include "feature.h" |
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28 | #include "common.h" |
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29 | |||
30 | |||
31 | /* |
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32 | * expand feature list to array of feature strings. |
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33 | */ |
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34 | #define BRCMF_FEAT_DEF(_f) \ |
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35 | #_f, |
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36 | static const char *brcmf_feat_names[] = { |
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37 | BRCMF_FEAT_LIST |
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38 | }; |
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39 | #undef BRCMF_FEAT_DEF |
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40 | |||
41 | struct brcmf_feat_fwcap { |
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42 | enum brcmf_feat_id feature; |
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43 | const char * const fwcap_id; |
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44 | }; |
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45 | |||
46 | static const struct brcmf_feat_fwcap brcmf_fwcap_map[] = { |
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47 | { BRCMF_FEAT_MBSS, "mbss" }, |
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48 | { BRCMF_FEAT_MCHAN, "mchan" }, |
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49 | { BRCMF_FEAT_P2P, "p2p" }, |
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50 | }; |
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51 | |||
52 | #ifdef DEBUG |
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53 | /* |
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54 | * expand quirk list to array of quirk strings. |
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55 | */ |
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56 | #define BRCMF_QUIRK_DEF(_q) \ |
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57 | #_q, |
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58 | static const char * const brcmf_quirk_names[] = { |
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59 | BRCMF_QUIRK_LIST |
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60 | }; |
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61 | #undef BRCMF_QUIRK_DEF |
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62 | |||
63 | /** |
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64 | * brcmf_feat_debugfs_read() - expose feature info to debugfs. |
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65 | * |
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66 | * @seq: sequence for debugfs entry. |
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67 | * @data: raw data pointer. |
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68 | */ |
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69 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) |
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70 | { |
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71 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); |
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72 | u32 feats = bus_if->drvr->feat_flags; |
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73 | u32 quirks = bus_if->drvr->chip_quirks; |
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74 | int id; |
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75 | |||
76 | seq_printf(seq, "Features: %08x\n", feats); |
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77 | for (id = 0; id < BRCMF_FEAT_LAST; id++) |
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78 | if (feats & BIT(id)) |
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79 | seq_printf(seq, "\t%s\n", brcmf_feat_names[id]); |
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80 | seq_printf(seq, "\nQuirks: %08x\n", quirks); |
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81 | for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++) |
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82 | if (quirks & BIT(id)) |
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83 | seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]); |
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84 | return 0; |
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85 | } |
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86 | #else |
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87 | static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data) |
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88 | { |
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89 | return 0; |
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90 | } |
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91 | #endif /* DEBUG */ |
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92 | |||
93 | /** |
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94 | * brcmf_feat_iovar_int_get() - determine feature through iovar query. |
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95 | * |
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96 | * @ifp: interface to query. |
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97 | * @id: feature id. |
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98 | * @name: iovar name. |
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99 | */ |
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100 | static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp, |
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101 | enum brcmf_feat_id id, char *name) |
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102 | { |
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103 | u32 data; |
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104 | int err; |
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105 | |||
106 | err = brcmf_fil_iovar_int_get(ifp, name, &data); |
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107 | if (err == 0) { |
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108 | brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]); |
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109 | ifp->drvr->feat_flags |= BIT(id); |
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110 | } else { |
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111 | brcmf_dbg(TRACE, "%s feature check failed: %d\n", |
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112 | brcmf_feat_names[id], err); |
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113 | } |
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114 | } |
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115 | |||
116 | static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp) |
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117 | { |
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118 | char caps[256]; |
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119 | enum brcmf_feat_id id; |
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120 | int i; |
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121 | |||
122 | brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps)); |
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123 | brcmf_dbg(INFO, "[ %s]\n", caps); |
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124 | |||
125 | for (i = 0; i < ARRAY_SIZE(brcmf_fwcap_map); i++) { |
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126 | if (strnstr(caps, brcmf_fwcap_map[i].fwcap_id, sizeof(caps))) { |
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127 | id = brcmf_fwcap_map[i].feature; |
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128 | brcmf_dbg(INFO, "enabling feature: %s\n", |
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129 | brcmf_feat_names[id]); |
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130 | ifp->drvr->feat_flags |= BIT(id); |
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131 | } |
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132 | } |
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133 | } |
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134 | |||
135 | void brcmf_feat_attach(struct brcmf_pub *drvr) |
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136 | { |
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137 | struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0); |
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138 | struct brcmf_pno_macaddr_le pfn_mac; |
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139 | u32 wowl_cap; |
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140 | s32 err; |
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141 | |||
142 | brcmf_feat_firmware_capabilities(ifp); |
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143 | |||
144 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn"); |
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145 | if (drvr->bus_if->wowl_supported) |
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146 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl"); |
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147 | if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) { |
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148 | err = brcmf_fil_iovar_int_get(ifp, "wowl_cap", &wowl_cap); |
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149 | if (!err) { |
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150 | ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ARP_ND); |
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151 | if (wowl_cap & BRCMF_WOWL_PFN_FOUND) |
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152 | ifp->drvr->feat_flags |= |
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153 | BIT(BRCMF_FEAT_WOWL_ND); |
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154 | if (wowl_cap & BRCMF_WOWL_GTK_FAILURE) |
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155 | ifp->drvr->feat_flags |= |
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156 | BIT(BRCMF_FEAT_WOWL_GTK); |
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157 | } |
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158 | } |
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159 | /* MBSS does not work for 43362 */ |
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160 | if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID) |
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161 | ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS); |
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162 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode"); |
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163 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable"); |
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164 | brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MFP, "mfp"); |
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165 | |||
166 | pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER; |
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167 | err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac, |
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168 | sizeof(pfn_mac)); |
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169 | if (!err) |
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170 | ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC); |
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171 | |||
172 | if (drvr->settings->feature_disable) { |
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173 | brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n", |
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174 | ifp->drvr->feat_flags, |
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175 | drvr->settings->feature_disable); |
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176 | ifp->drvr->feat_flags &= ~drvr->settings->feature_disable; |
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177 | } |
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178 | |||
179 | /* set chip related quirks */ |
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180 | switch (drvr->bus_if->chip) { |
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181 | case BRCM_CC_43236_CHIP_ID: |
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182 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH); |
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183 | break; |
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184 | case BRCM_CC_4329_CHIP_ID: |
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185 | drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC); |
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186 | break; |
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187 | default: |
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188 | /* no quirks */ |
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189 | break; |
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190 | } |
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191 | |||
192 | brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read); |
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193 | } |
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194 | |||
195 | bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id) |
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196 | { |
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197 | return (ifp->drvr->feat_flags & BIT(id)); |
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198 | } |
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199 | |||
200 | bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp, |
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201 | enum brcmf_feat_quirk quirk) |
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202 | { |
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203 | return (ifp->drvr->chip_quirks & BIT(quirk)); |
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204 | } |