diff options
| -rw-r--r-- | net/wireless/chan.c | 138 |
1 files changed, 69 insertions, 69 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c index ceb9174c5c3d..71f1bd456d88 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -56,6 +56,75 @@ void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, } EXPORT_SYMBOL(cfg80211_chandef_create); +struct cfg80211_per_bw_puncturing_values { + u8 len; + const u16 *valid_values; +}; + +static const u16 puncturing_values_80mhz[] = { + 0x8, 0x4, 0x2, 0x1 +}; + +static const u16 puncturing_values_160mhz[] = { + 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1, 0xc0, 0x30, 0xc, 0x3 +}; + +static const u16 puncturing_values_320mhz[] = { + 0xc000, 0x3000, 0xc00, 0x300, 0xc0, 0x30, 0xc, 0x3, 0xf000, 0xf00, + 0xf0, 0xf, 0xfc00, 0xf300, 0xf0c0, 0xf030, 0xf00c, 0xf003, 0xc00f, + 0x300f, 0xc0f, 0x30f, 0xcf, 0x3f +}; + +#define CFG80211_PER_BW_VALID_PUNCTURING_VALUES(_bw) \ + { \ + .len = ARRAY_SIZE(puncturing_values_ ## _bw ## mhz), \ + .valid_values = puncturing_values_ ## _bw ## mhz \ + } + +static const struct cfg80211_per_bw_puncturing_values per_bw_puncturing[] = { + CFG80211_PER_BW_VALID_PUNCTURING_VALUES(80), + CFG80211_PER_BW_VALID_PUNCTURING_VALUES(160), + CFG80211_PER_BW_VALID_PUNCTURING_VALUES(320) +}; + +bool cfg80211_valid_disable_subchannel_bitmap(u16 *bitmap, + const struct cfg80211_chan_def *chandef) +{ + u32 idx, i, start_freq; + + switch (chandef->width) { + case NL80211_CHAN_WIDTH_80: + idx = 0; + start_freq = chandef->center_freq1 - 40; + break; + case NL80211_CHAN_WIDTH_160: + idx = 1; + start_freq = chandef->center_freq1 - 80; + break; + case NL80211_CHAN_WIDTH_320: + idx = 2; + start_freq = chandef->center_freq1 - 160; + break; + default: + *bitmap = 0; + break; + } + + if (!*bitmap) + return true; + + /* check if primary channel is punctured */ + if (*bitmap & (u16)BIT((chandef->chan->center_freq - start_freq) / 20)) + return false; + + for (i = 0; i < per_bw_puncturing[idx].len; i++) + if (per_bw_puncturing[idx].valid_values[i] == *bitmap) + return true; + + return false; +} +EXPORT_SYMBOL(cfg80211_valid_disable_subchannel_bitmap); + static bool cfg80211_edmg_chandef_valid(const struct cfg80211_chan_def *chandef) { int max_contiguous = 0; @@ -1532,72 +1601,3 @@ struct cfg80211_chan_def *wdev_chandef(struct wireless_dev *wdev, } } EXPORT_SYMBOL(wdev_chandef); - -struct cfg80211_per_bw_puncturing_values { - u8 len; - const u16 *valid_values; -}; - -static const u16 puncturing_values_80mhz[] = { - 0x8, 0x4, 0x2, 0x1 -}; - -static const u16 puncturing_values_160mhz[] = { - 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1, 0xc0, 0x30, 0xc, 0x3 -}; - -static const u16 puncturing_values_320mhz[] = { - 0xc000, 0x3000, 0xc00, 0x300, 0xc0, 0x30, 0xc, 0x3, 0xf000, 0xf00, - 0xf0, 0xf, 0xfc00, 0xf300, 0xf0c0, 0xf030, 0xf00c, 0xf003, 0xc00f, - 0x300f, 0xc0f, 0x30f, 0xcf, 0x3f -}; - -#define CFG80211_PER_BW_VALID_PUNCTURING_VALUES(_bw) \ - { \ - .len = ARRAY_SIZE(puncturing_values_ ## _bw ## mhz), \ - .valid_values = puncturing_values_ ## _bw ## mhz \ - } - -static const struct cfg80211_per_bw_puncturing_values per_bw_puncturing[] = { - CFG80211_PER_BW_VALID_PUNCTURING_VALUES(80), - CFG80211_PER_BW_VALID_PUNCTURING_VALUES(160), - CFG80211_PER_BW_VALID_PUNCTURING_VALUES(320) -}; - -bool cfg80211_valid_disable_subchannel_bitmap(u16 *bitmap, - const struct cfg80211_chan_def *chandef) -{ - u32 idx, i, start_freq; - - switch (chandef->width) { - case NL80211_CHAN_WIDTH_80: - idx = 0; - start_freq = chandef->center_freq1 - 40; - break; - case NL80211_CHAN_WIDTH_160: - idx = 1; - start_freq = chandef->center_freq1 - 80; - break; - case NL80211_CHAN_WIDTH_320: - idx = 2; - start_freq = chandef->center_freq1 - 160; - break; - default: - *bitmap = 0; - break; - } - - if (!*bitmap) - return true; - - /* check if primary channel is punctured */ - if (*bitmap & (u16)BIT((chandef->chan->center_freq - start_freq) / 20)) - return false; - - for (i = 0; i < per_bw_puncturing[idx].len; i++) - if (per_bw_puncturing[idx].valid_values[i] == *bitmap) - return true; - - return false; -} -EXPORT_SYMBOL(cfg80211_valid_disable_subchannel_bitmap); |