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380 lines
9.6 KiB
380 lines
9.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* This file is part of wl1271 |
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* |
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* Copyright (C) 2008-2009 Nokia Corporation |
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* |
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* Contact: Luciano Coelho <[email protected]> |
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*/ |
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#include "wlcore.h" |
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#include "debug.h" |
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#include "io.h" |
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#include "event.h" |
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#include "ps.h" |
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#include "scan.h" |
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#include "wl12xx_80211.h" |
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#include "hw_ops.h" |
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#define WL18XX_LOGGER_SDIO_BUFF_MAX (0x1020) |
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#define WL18XX_DATA_RAM_BASE_ADDRESS (0x20000000) |
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#define WL18XX_LOGGER_SDIO_BUFF_ADDR (0x40159c) |
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#define WL18XX_LOGGER_BUFF_OFFSET (sizeof(struct fw_logger_information)) |
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#define WL18XX_LOGGER_READ_POINT_OFFSET (12) |
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int wlcore_event_fw_logger(struct wl1271 *wl) |
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{ |
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int ret; |
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struct fw_logger_information fw_log; |
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u8 *buffer; |
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u32 internal_fw_addrbase = WL18XX_DATA_RAM_BASE_ADDRESS; |
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u32 addr = WL18XX_LOGGER_SDIO_BUFF_ADDR; |
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u32 end_buff_addr = WL18XX_LOGGER_SDIO_BUFF_ADDR + |
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WL18XX_LOGGER_BUFF_OFFSET; |
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u32 available_len; |
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u32 actual_len; |
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u32 clear_addr; |
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size_t len; |
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u32 start_loc; |
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buffer = kzalloc(WL18XX_LOGGER_SDIO_BUFF_MAX, GFP_KERNEL); |
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if (!buffer) { |
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wl1271_error("Fail to allocate fw logger memory"); |
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fw_log.actual_buff_size = cpu_to_le32(0); |
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goto out; |
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} |
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ret = wlcore_read(wl, addr, buffer, WL18XX_LOGGER_SDIO_BUFF_MAX, |
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false); |
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if (ret < 0) { |
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wl1271_error("Fail to read logger buffer, error_id = %d", |
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ret); |
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fw_log.actual_buff_size = cpu_to_le32(0); |
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goto free_out; |
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} |
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memcpy(&fw_log, buffer, sizeof(fw_log)); |
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if (le32_to_cpu(fw_log.actual_buff_size) == 0) |
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goto free_out; |
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actual_len = le32_to_cpu(fw_log.actual_buff_size); |
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start_loc = (le32_to_cpu(fw_log.buff_read_ptr) - |
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internal_fw_addrbase) - addr; |
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end_buff_addr += le32_to_cpu(fw_log.max_buff_size); |
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available_len = end_buff_addr - |
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(le32_to_cpu(fw_log.buff_read_ptr) - |
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internal_fw_addrbase); |
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actual_len = min(actual_len, available_len); |
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len = actual_len; |
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wl12xx_copy_fwlog(wl, &buffer[start_loc], len); |
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clear_addr = addr + start_loc + le32_to_cpu(fw_log.actual_buff_size) + |
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internal_fw_addrbase; |
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len = le32_to_cpu(fw_log.actual_buff_size) - len; |
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if (len) { |
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wl12xx_copy_fwlog(wl, |
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&buffer[WL18XX_LOGGER_BUFF_OFFSET], |
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len); |
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clear_addr = addr + WL18XX_LOGGER_BUFF_OFFSET + len + |
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internal_fw_addrbase; |
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} |
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/* double check that clear address and write pointer are the same */ |
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if (clear_addr != le32_to_cpu(fw_log.buff_write_ptr)) { |
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wl1271_error("Calculate of clear addr Clear = %x, write = %x", |
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clear_addr, le32_to_cpu(fw_log.buff_write_ptr)); |
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} |
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/* indicate FW about Clear buffer */ |
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ret = wlcore_write32(wl, addr + WL18XX_LOGGER_READ_POINT_OFFSET, |
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fw_log.buff_write_ptr); |
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free_out: |
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kfree(buffer); |
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out: |
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return le32_to_cpu(fw_log.actual_buff_size); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_fw_logger); |
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void wlcore_event_rssi_trigger(struct wl1271 *wl, s8 *metric_arr) |
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{ |
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struct wl12xx_vif *wlvif; |
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struct ieee80211_vif *vif; |
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enum nl80211_cqm_rssi_threshold_event event; |
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s8 metric = metric_arr[0]; |
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wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric); |
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/* TODO: check actual multi-role support */ |
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wl12xx_for_each_wlvif_sta(wl, wlvif) { |
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if (metric <= wlvif->rssi_thold) |
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event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; |
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else |
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event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; |
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vif = wl12xx_wlvif_to_vif(wlvif); |
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if (event != wlvif->last_rssi_event) |
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ieee80211_cqm_rssi_notify(vif, event, metric, |
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GFP_KERNEL); |
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wlvif->last_rssi_event = event; |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_rssi_trigger); |
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static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); |
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if (wlvif->bss_type != BSS_TYPE_AP_BSS) { |
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u8 hlid = wlvif->sta.hlid; |
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if (!wl->links[hlid].ba_bitmap) |
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return; |
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ieee80211_stop_rx_ba_session(vif, wl->links[hlid].ba_bitmap, |
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vif->bss_conf.bssid); |
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} else { |
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u8 hlid; |
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struct wl1271_link *lnk; |
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for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, |
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wl->num_links) { |
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lnk = &wl->links[hlid]; |
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if (!lnk->ba_bitmap) |
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continue; |
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ieee80211_stop_rx_ba_session(vif, |
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lnk->ba_bitmap, |
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lnk->addr); |
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} |
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} |
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} |
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void wlcore_event_soft_gemini_sense(struct wl1271 *wl, u8 enable) |
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{ |
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struct wl12xx_vif *wlvif; |
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if (enable) { |
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set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags); |
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} else { |
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clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags); |
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wl12xx_for_each_wlvif_sta(wl, wlvif) { |
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wl1271_recalc_rx_streaming(wl, wlvif); |
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} |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_soft_gemini_sense); |
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void wlcore_event_sched_scan_completed(struct wl1271 *wl, |
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u8 status) |
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{ |
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wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT (status 0x%0x)", |
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status); |
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if (wl->sched_vif) { |
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ieee80211_sched_scan_stopped(wl->hw); |
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wl->sched_vif = NULL; |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_sched_scan_completed); |
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void wlcore_event_ba_rx_constraint(struct wl1271 *wl, |
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unsigned long roles_bitmap, |
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unsigned long allowed_bitmap) |
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{ |
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struct wl12xx_vif *wlvif; |
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wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx allowed=0x%lx", |
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__func__, roles_bitmap, allowed_bitmap); |
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wl12xx_for_each_wlvif(wl, wlvif) { |
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID || |
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!test_bit(wlvif->role_id , &roles_bitmap)) |
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continue; |
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wlvif->ba_allowed = !!test_bit(wlvif->role_id, |
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&allowed_bitmap); |
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if (!wlvif->ba_allowed) |
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wl1271_stop_ba_event(wl, wlvif); |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_ba_rx_constraint); |
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void wlcore_event_channel_switch(struct wl1271 *wl, |
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unsigned long roles_bitmap, |
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bool success) |
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{ |
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struct wl12xx_vif *wlvif; |
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struct ieee80211_vif *vif; |
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wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx success=%d", |
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__func__, roles_bitmap, success); |
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wl12xx_for_each_wlvif(wl, wlvif) { |
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID || |
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!test_bit(wlvif->role_id , &roles_bitmap)) |
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continue; |
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if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, |
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&wlvif->flags)) |
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continue; |
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vif = wl12xx_wlvif_to_vif(wlvif); |
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if (wlvif->bss_type == BSS_TYPE_STA_BSS) { |
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ieee80211_chswitch_done(vif, success); |
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cancel_delayed_work(&wlvif->channel_switch_work); |
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} else { |
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set_bit(WLVIF_FLAG_BEACON_DISABLED, &wlvif->flags); |
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ieee80211_csa_finish(vif); |
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} |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_channel_switch); |
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void wlcore_event_dummy_packet(struct wl1271 *wl) |
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{ |
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if (wl->plt) { |
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wl1271_info("Got DUMMY_PACKET event in PLT mode. FW bug, ignoring."); |
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return; |
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} |
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wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID"); |
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wl1271_tx_dummy_packet(wl); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_dummy_packet); |
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static void wlcore_disconnect_sta(struct wl1271 *wl, unsigned long sta_bitmap) |
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{ |
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u32 num_packets = wl->conf.tx.max_tx_retries; |
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struct wl12xx_vif *wlvif; |
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struct ieee80211_vif *vif; |
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struct ieee80211_sta *sta; |
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const u8 *addr; |
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int h; |
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for_each_set_bit(h, &sta_bitmap, wl->num_links) { |
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bool found = false; |
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/* find the ap vif connected to this sta */ |
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wl12xx_for_each_wlvif_ap(wl, wlvif) { |
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if (!test_bit(h, wlvif->ap.sta_hlid_map)) |
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continue; |
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found = true; |
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break; |
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} |
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if (!found) |
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continue; |
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vif = wl12xx_wlvif_to_vif(wlvif); |
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addr = wl->links[h].addr; |
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rcu_read_lock(); |
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sta = ieee80211_find_sta(vif, addr); |
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if (sta) { |
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wl1271_debug(DEBUG_EVENT, "remove sta %d", h); |
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ieee80211_report_low_ack(sta, num_packets); |
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} |
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rcu_read_unlock(); |
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} |
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} |
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void wlcore_event_max_tx_failure(struct wl1271 *wl, unsigned long sta_bitmap) |
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{ |
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wl1271_debug(DEBUG_EVENT, "MAX_TX_FAILURE_EVENT_ID"); |
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wlcore_disconnect_sta(wl, sta_bitmap); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_max_tx_failure); |
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void wlcore_event_inactive_sta(struct wl1271 *wl, unsigned long sta_bitmap) |
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{ |
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wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID"); |
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wlcore_disconnect_sta(wl, sta_bitmap); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_inactive_sta); |
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void wlcore_event_roc_complete(struct wl1271 *wl) |
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{ |
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wl1271_debug(DEBUG_EVENT, "REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID"); |
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if (wl->roc_vif) |
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ieee80211_ready_on_channel(wl->hw); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_roc_complete); |
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void wlcore_event_beacon_loss(struct wl1271 *wl, unsigned long roles_bitmap) |
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{ |
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/* |
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* We are HW_MONITOR device. On beacon loss - queue |
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* connection loss work. Cancel it on REGAINED event. |
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*/ |
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struct wl12xx_vif *wlvif; |
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struct ieee80211_vif *vif; |
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int delay = wl->conf.conn.synch_fail_thold * |
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wl->conf.conn.bss_lose_timeout; |
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wl1271_info("Beacon loss detected. roles:0x%lx", roles_bitmap); |
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wl12xx_for_each_wlvif_sta(wl, wlvif) { |
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID || |
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!test_bit(wlvif->role_id , &roles_bitmap)) |
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continue; |
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vif = wl12xx_wlvif_to_vif(wlvif); |
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/* don't attempt roaming in case of p2p */ |
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if (wlvif->p2p) { |
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ieee80211_connection_loss(vif); |
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continue; |
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} |
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/* |
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* if the work is already queued, it should take place. |
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* We don't want to delay the connection loss |
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* indication any more. |
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*/ |
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ieee80211_queue_delayed_work(wl->hw, |
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&wlvif->connection_loss_work, |
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msecs_to_jiffies(delay)); |
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ieee80211_cqm_beacon_loss_notify(vif, GFP_KERNEL); |
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} |
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} |
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EXPORT_SYMBOL_GPL(wlcore_event_beacon_loss); |
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int wl1271_event_unmask(struct wl1271 *wl) |
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{ |
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int ret; |
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wl1271_debug(DEBUG_EVENT, "unmasking event_mask 0x%x", wl->event_mask); |
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ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask)); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num) |
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{ |
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int ret; |
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wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num); |
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if (mbox_num > 1) |
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return -EINVAL; |
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/* first we read the mbox descriptor */ |
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ret = wlcore_read(wl, wl->mbox_ptr[mbox_num], wl->mbox, |
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wl->mbox_size, false); |
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if (ret < 0) |
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return ret; |
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/* process the descriptor */ |
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ret = wl->ops->process_mailbox_events(wl); |
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if (ret < 0) |
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return ret; |
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/* |
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* TODO: we just need this because one bit is in a different |
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* place. Is there any better way? |
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*/ |
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ret = wl->ops->ack_event(wl); |
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return ret; |
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}
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