diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/reg.c | 178 |
1 files changed, 11 insertions, 167 deletions
diff --git a/drivers/net/wireless/ath/ath12k/reg.c b/drivers/net/wireless/ath/ath12k/reg.c index 62936d518b1d..19d14486e0ca 100644 --- a/drivers/net/wireless/ath/ath12k/reg.c +++ b/drivers/net/wireless/ath/ath12k/reg.c @@ -454,134 +454,6 @@ static u32 ath12k_map_fw_phy_flags(u32 phy_flags) return flags; } -static bool -ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1, - struct ieee80211_reg_rule *rule2) -{ - u32 start_freq1, end_freq1; - u32 start_freq2, end_freq2; - - start_freq1 = rule1->freq_range.start_freq_khz; - start_freq2 = rule2->freq_range.start_freq_khz; - - end_freq1 = rule1->freq_range.end_freq_khz; - end_freq2 = rule2->freq_range.end_freq_khz; - - if ((start_freq1 >= start_freq2 && - start_freq1 < end_freq2) || - (start_freq2 > start_freq1 && - start_freq2 < end_freq1)) - return true; - - /* TODO: Should we restrict intersection feasibility - * based on min bandwidth of the intersected region also, - * say the intersected rule should have a min bandwidth - * of 20MHz? - */ - - return false; -} - -static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1, - struct ieee80211_reg_rule *rule2, - struct ieee80211_reg_rule *new_rule) -{ - u32 start_freq1, end_freq1; - u32 start_freq2, end_freq2; - u32 freq_diff, max_bw; - - start_freq1 = rule1->freq_range.start_freq_khz; - start_freq2 = rule2->freq_range.start_freq_khz; - - end_freq1 = rule1->freq_range.end_freq_khz; - end_freq2 = rule2->freq_range.end_freq_khz; - - new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1, - start_freq2); - new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2); - - freq_diff = new_rule->freq_range.end_freq_khz - - new_rule->freq_range.start_freq_khz; - max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz, - rule2->freq_range.max_bandwidth_khz); - new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff); - - new_rule->power_rule.max_antenna_gain = - min_t(u32, rule1->power_rule.max_antenna_gain, - rule2->power_rule.max_antenna_gain); - - new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp, - rule2->power_rule.max_eirp); - - /* Use the flags of both the rules */ - new_rule->flags = rule1->flags | rule2->flags; - - if ((rule1->flags & NL80211_RRF_PSD) && (rule2->flags & NL80211_RRF_PSD)) - new_rule->psd = min_t(s8, rule1->psd, rule2->psd); - else - new_rule->flags &= ~NL80211_RRF_PSD; - - /* To be safe, lts use the max cac timeout of both rules */ - new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms, - rule2->dfs_cac_ms); -} - -static struct ieee80211_regdomain * -ath12k_regd_intersect(struct ieee80211_regdomain *default_regd, - struct ieee80211_regdomain *curr_regd) -{ - u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules; - struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule; - struct ieee80211_regdomain *new_regd = NULL; - u8 i, j, k; - - num_old_regd_rules = default_regd->n_reg_rules; - num_curr_regd_rules = curr_regd->n_reg_rules; - num_new_regd_rules = 0; - - /* Find the number of intersecting rules to allocate new regd memory */ - for (i = 0; i < num_old_regd_rules; i++) { - old_rule = default_regd->reg_rules + i; - for (j = 0; j < num_curr_regd_rules; j++) { - curr_rule = curr_regd->reg_rules + j; - - if (ath12k_reg_can_intersect(old_rule, curr_rule)) - num_new_regd_rules++; - } - } - - if (!num_new_regd_rules) - return NULL; - - new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules * - sizeof(struct ieee80211_reg_rule)), - GFP_ATOMIC); - - if (!new_regd) - return NULL; - - /* We set the new country and dfs region directly and only trim - * the freq, power, antenna gain by intersecting with the - * default regdomain. Also MAX of the dfs cac timeout is selected. - */ - new_regd->n_reg_rules = num_new_regd_rules; - memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2)); - new_regd->dfs_region = curr_regd->dfs_region; - new_rule = new_regd->reg_rules; - - for (i = 0, k = 0; i < num_old_regd_rules; i++) { - old_rule = default_regd->reg_rules + i; - for (j = 0; j < num_curr_regd_rules; j++) { - curr_rule = curr_regd->reg_rules + j; - - if (ath12k_reg_can_intersect(old_rule, curr_rule)) - ath12k_reg_intersect_rules(old_rule, curr_rule, - (new_rule + k++)); - } - } - return new_regd; -} - static const char * ath12k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region) { @@ -716,12 +588,6 @@ static void ath12k_reg_update_freq_range(struct ath12k_reg_freq *reg_freq, reg_freq->end_freq = reg_rule->end_freq; } -static bool ath12k_reg_is_world_alpha(char *alpha) -{ - return (alpha[0] == '0' && alpha[1] == '0') || - (alpha[0] == 'n' && alpha[1] == 'a'); -} - enum wmi_reg_6g_ap_type ath12k_reg_ap_pwr_convert(enum ieee80211_ap_reg_power power_type) { @@ -743,7 +609,7 @@ ath12k_reg_build_regd(struct ath12k_base *ab, enum wmi_vdev_type vdev_type, enum ieee80211_ap_reg_power power_type) { - struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL; + struct ieee80211_regdomain *new_regd = NULL; struct ath12k_reg_rule *reg_rule, *reg_rule_6ghz; u32 flags, reg_6ghz_number, max_bw_6ghz; u8 i = 0, j = 0, k = 0; @@ -791,20 +657,20 @@ ath12k_reg_build_regd(struct ath12k_base *ab, if (reg_info->dfs_region == ATH12K_DFS_REG_ETSI) num_rules += 2; - tmp_regd = kzalloc(sizeof(*tmp_regd) + + new_regd = kzalloc(sizeof(*new_regd) + (num_rules * sizeof(struct ieee80211_reg_rule)), GFP_ATOMIC); - if (!tmp_regd) + if (!new_regd) goto ret; - memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); + memcpy(new_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); alpha2[2] = '\0'; - tmp_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region); + new_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region); ath12k_dbg(ab, ATH12K_DBG_REG, "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n", - alpha2, ath12k_reg_get_regdom_str(tmp_regd->dfs_region), + alpha2, ath12k_reg_get_regdom_str(new_regd->dfs_region), reg_info->dfs_region, num_rules); /* Reset start and end frequency for each band @@ -856,7 +722,7 @@ ath12k_reg_build_regd(struct ath12k_base *ab, flags |= ath12k_map_fw_reg_flags(reg_rule->flags); flags |= ath12k_map_fw_phy_flags(reg_info->phybitmap); - ath12k_reg_update_rule(tmp_regd->reg_rules + i, + ath12k_reg_update_rule(new_regd->reg_rules + i, reg_rule->start_freq, reg_rule->end_freq, max_bw, reg_rule->ant_gain, reg_rule->reg_power, @@ -871,7 +737,7 @@ ath12k_reg_build_regd(struct ath12k_base *ab, reg_info->dfs_region == ATH12K_DFS_REG_ETSI && (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW && reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){ - ath12k_reg_update_weather_radar_band(ab, tmp_regd, + ath12k_reg_update_weather_radar_band(ab, new_regd, reg_rule, &i, flags, max_bw); continue; @@ -881,41 +747,19 @@ ath12k_reg_build_regd(struct ath12k_base *ab, ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d) (%d, %d)\n", i + 1, reg_rule->start_freq, reg_rule->end_freq, max_bw, reg_rule->ant_gain, reg_rule->reg_power, - tmp_regd->reg_rules[i].dfs_cac_ms, + new_regd->reg_rules[i].dfs_cac_ms, flags, reg_rule->psd_flag, reg_rule->psd_eirp); } else { ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", i + 1, reg_rule->start_freq, reg_rule->end_freq, max_bw, reg_rule->ant_gain, reg_rule->reg_power, - tmp_regd->reg_rules[i].dfs_cac_ms, + new_regd->reg_rules[i].dfs_cac_ms, flags); } } - tmp_regd->n_reg_rules = i; - - /* Intersect new rules with default regd if a new country setting was - * requested, i.e a default regd was already set during initialization - * and the regd coming from this event has a valid country info. - */ - default_regd = ab->default_regd[reg_info->phy_id]; - if (default_regd && - !ath12k_reg_is_world_alpha((char *)default_regd->alpha2) && - !ath12k_reg_is_world_alpha((char *)reg_info->alpha2)) { - /* Get a new regd by intersecting the received regd with - * our default regd. - */ - new_regd = ath12k_regd_intersect(default_regd, tmp_regd); - kfree(tmp_regd); - if (!new_regd) { - ath12k_warn(ab, "Unable to create intersected regdomain\n"); - goto ret; - } - } else { - new_regd = tmp_regd; - } - + new_regd->n_reg_rules = i; ret: return new_regd; } |