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761 lines
22 KiB
761 lines
22 KiB
/* |
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* NXP Wireless LAN device driver: utility functions |
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* |
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* Copyright 2011-2020 NXP |
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* |
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* This software file (the "File") is distributed by NXP |
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* under the terms of the GNU General Public License Version 2, June 1991 |
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* (the "License"). You may use, redistribute and/or modify this File in |
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* accordance with the terms and conditions of the License, a copy of which |
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* is available by writing to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
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* |
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
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* this warranty disclaimer. |
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*/ |
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|
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#include "decl.h" |
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#include "ioctl.h" |
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#include "util.h" |
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#include "fw.h" |
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#include "main.h" |
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#include "wmm.h" |
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#include "11n.h" |
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|
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static struct mwifiex_debug_data items[] = { |
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{"debug_mask", item_size(debug_mask), |
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item_addr(debug_mask), 1}, |
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{"int_counter", item_size(int_counter), |
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item_addr(int_counter), 1}, |
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{"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]), |
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item_addr(packets_out[WMM_AC_VO]), 1}, |
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{"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]), |
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item_addr(packets_out[WMM_AC_VI]), 1}, |
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{"wmm_ac_be", item_size(packets_out[WMM_AC_BE]), |
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item_addr(packets_out[WMM_AC_BE]), 1}, |
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{"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]), |
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item_addr(packets_out[WMM_AC_BK]), 1}, |
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{"tx_buf_size", item_size(tx_buf_size), |
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item_addr(tx_buf_size), 1}, |
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{"curr_tx_buf_size", item_size(curr_tx_buf_size), |
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item_addr(curr_tx_buf_size), 1}, |
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{"ps_mode", item_size(ps_mode), |
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item_addr(ps_mode), 1}, |
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{"ps_state", item_size(ps_state), |
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item_addr(ps_state), 1}, |
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{"is_deep_sleep", item_size(is_deep_sleep), |
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item_addr(is_deep_sleep), 1}, |
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{"wakeup_dev_req", item_size(pm_wakeup_card_req), |
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item_addr(pm_wakeup_card_req), 1}, |
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{"wakeup_tries", item_size(pm_wakeup_fw_try), |
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item_addr(pm_wakeup_fw_try), 1}, |
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{"hs_configured", item_size(is_hs_configured), |
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item_addr(is_hs_configured), 1}, |
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{"hs_activated", item_size(hs_activated), |
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item_addr(hs_activated), 1}, |
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{"num_tx_timeout", item_size(num_tx_timeout), |
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item_addr(num_tx_timeout), 1}, |
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{"is_cmd_timedout", item_size(is_cmd_timedout), |
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item_addr(is_cmd_timedout), 1}, |
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{"timeout_cmd_id", item_size(timeout_cmd_id), |
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item_addr(timeout_cmd_id), 1}, |
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{"timeout_cmd_act", item_size(timeout_cmd_act), |
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item_addr(timeout_cmd_act), 1}, |
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{"last_cmd_id", item_size(last_cmd_id), |
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item_addr(last_cmd_id), DBG_CMD_NUM}, |
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{"last_cmd_act", item_size(last_cmd_act), |
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item_addr(last_cmd_act), DBG_CMD_NUM}, |
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{"last_cmd_index", item_size(last_cmd_index), |
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item_addr(last_cmd_index), 1}, |
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{"last_cmd_resp_id", item_size(last_cmd_resp_id), |
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item_addr(last_cmd_resp_id), DBG_CMD_NUM}, |
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{"last_cmd_resp_index", item_size(last_cmd_resp_index), |
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item_addr(last_cmd_resp_index), 1}, |
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{"last_event", item_size(last_event), |
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item_addr(last_event), DBG_CMD_NUM}, |
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{"last_event_index", item_size(last_event_index), |
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item_addr(last_event_index), 1}, |
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{"last_mp_wr_bitmap", item_size(last_mp_wr_bitmap), |
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item_addr(last_mp_wr_bitmap), MWIFIEX_DBG_SDIO_MP_NUM}, |
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{"last_mp_wr_ports", item_size(last_mp_wr_ports), |
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item_addr(last_mp_wr_ports), MWIFIEX_DBG_SDIO_MP_NUM}, |
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{"last_mp_wr_len", item_size(last_mp_wr_len), |
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item_addr(last_mp_wr_len), MWIFIEX_DBG_SDIO_MP_NUM}, |
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{"last_mp_curr_wr_port", item_size(last_mp_curr_wr_port), |
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item_addr(last_mp_curr_wr_port), MWIFIEX_DBG_SDIO_MP_NUM}, |
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{"last_sdio_mp_index", item_size(last_sdio_mp_index), |
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item_addr(last_sdio_mp_index), 1}, |
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{"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure), |
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item_addr(num_cmd_host_to_card_failure), 1}, |
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{"num_cmd_sleep_cfm_fail", |
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item_size(num_cmd_sleep_cfm_host_to_card_failure), |
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item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1}, |
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{"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure), |
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item_addr(num_tx_host_to_card_failure), 1}, |
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{"num_evt_deauth", item_size(num_event_deauth), |
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item_addr(num_event_deauth), 1}, |
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{"num_evt_disassoc", item_size(num_event_disassoc), |
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item_addr(num_event_disassoc), 1}, |
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{"num_evt_link_lost", item_size(num_event_link_lost), |
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item_addr(num_event_link_lost), 1}, |
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{"num_cmd_deauth", item_size(num_cmd_deauth), |
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item_addr(num_cmd_deauth), 1}, |
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{"num_cmd_assoc_ok", item_size(num_cmd_assoc_success), |
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item_addr(num_cmd_assoc_success), 1}, |
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{"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure), |
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item_addr(num_cmd_assoc_failure), 1}, |
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{"cmd_sent", item_size(cmd_sent), |
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item_addr(cmd_sent), 1}, |
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{"data_sent", item_size(data_sent), |
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item_addr(data_sent), 1}, |
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{"cmd_resp_received", item_size(cmd_resp_received), |
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item_addr(cmd_resp_received), 1}, |
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{"event_received", item_size(event_received), |
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item_addr(event_received), 1}, |
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|
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/* variables defined in struct mwifiex_adapter */ |
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{"cmd_pending", adapter_item_size(cmd_pending), |
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adapter_item_addr(cmd_pending), 1}, |
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{"tx_pending", adapter_item_size(tx_pending), |
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adapter_item_addr(tx_pending), 1}, |
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{"rx_pending", adapter_item_size(rx_pending), |
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adapter_item_addr(rx_pending), 1}, |
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}; |
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|
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static int num_of_items = ARRAY_SIZE(items); |
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|
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/* |
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* Firmware initialization complete callback handler. |
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* |
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* This function wakes up the function waiting on the init |
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* wait queue for the firmware initialization to complete. |
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*/ |
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int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter) |
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{ |
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|
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if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) |
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if (adapter->if_ops.init_fw_port) |
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adapter->if_ops.init_fw_port(adapter); |
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|
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adapter->init_wait_q_woken = true; |
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wake_up_interruptible(&adapter->init_wait_q); |
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return 0; |
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} |
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|
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/* |
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* This function sends init/shutdown command |
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* to firmware. |
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*/ |
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int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, |
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u32 func_init_shutdown) |
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{ |
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u16 cmd; |
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|
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if (func_init_shutdown == MWIFIEX_FUNC_INIT) { |
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cmd = HostCmd_CMD_FUNC_INIT; |
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} else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) { |
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cmd = HostCmd_CMD_FUNC_SHUTDOWN; |
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} else { |
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mwifiex_dbg(priv->adapter, ERROR, |
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"unsupported parameter\n"); |
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return -1; |
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} |
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return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true); |
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} |
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EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw); |
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|
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/* |
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* IOCTL request handler to set/get debug information. |
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* |
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* This function collates/sets the information from/to different driver |
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* structures. |
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*/ |
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int mwifiex_get_debug_info(struct mwifiex_private *priv, |
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struct mwifiex_debug_info *info) |
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{ |
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struct mwifiex_adapter *adapter = priv->adapter; |
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|
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if (info) { |
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info->debug_mask = adapter->debug_mask; |
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memcpy(info->packets_out, |
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priv->wmm.packets_out, |
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sizeof(priv->wmm.packets_out)); |
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info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size; |
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info->tx_buf_size = (u32) adapter->tx_buf_size; |
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info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv, |
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info->rx_tbl); |
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info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv, |
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info->tx_tbl); |
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info->tdls_peer_num = mwifiex_get_tdls_list(priv, |
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info->tdls_list); |
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info->ps_mode = adapter->ps_mode; |
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info->ps_state = adapter->ps_state; |
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info->is_deep_sleep = adapter->is_deep_sleep; |
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info->pm_wakeup_card_req = adapter->pm_wakeup_card_req; |
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info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try; |
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info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED, |
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&adapter->work_flags); |
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info->hs_activated = adapter->hs_activated; |
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info->is_cmd_timedout = test_bit(MWIFIEX_IS_CMD_TIMEDOUT, |
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&adapter->work_flags); |
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info->num_cmd_host_to_card_failure |
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= adapter->dbg.num_cmd_host_to_card_failure; |
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info->num_cmd_sleep_cfm_host_to_card_failure |
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= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure; |
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info->num_tx_host_to_card_failure |
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= adapter->dbg.num_tx_host_to_card_failure; |
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info->num_event_deauth = adapter->dbg.num_event_deauth; |
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info->num_event_disassoc = adapter->dbg.num_event_disassoc; |
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info->num_event_link_lost = adapter->dbg.num_event_link_lost; |
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info->num_cmd_deauth = adapter->dbg.num_cmd_deauth; |
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info->num_cmd_assoc_success = |
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adapter->dbg.num_cmd_assoc_success; |
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info->num_cmd_assoc_failure = |
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adapter->dbg.num_cmd_assoc_failure; |
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info->num_tx_timeout = adapter->dbg.num_tx_timeout; |
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info->timeout_cmd_id = adapter->dbg.timeout_cmd_id; |
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info->timeout_cmd_act = adapter->dbg.timeout_cmd_act; |
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memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id, |
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sizeof(adapter->dbg.last_cmd_id)); |
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memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act, |
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sizeof(adapter->dbg.last_cmd_act)); |
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info->last_cmd_index = adapter->dbg.last_cmd_index; |
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memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id, |
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sizeof(adapter->dbg.last_cmd_resp_id)); |
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info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index; |
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memcpy(info->last_event, adapter->dbg.last_event, |
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sizeof(adapter->dbg.last_event)); |
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info->last_event_index = adapter->dbg.last_event_index; |
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memcpy(info->last_mp_wr_bitmap, adapter->dbg.last_mp_wr_bitmap, |
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sizeof(adapter->dbg.last_mp_wr_bitmap)); |
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memcpy(info->last_mp_wr_ports, adapter->dbg.last_mp_wr_ports, |
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sizeof(adapter->dbg.last_mp_wr_ports)); |
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memcpy(info->last_mp_curr_wr_port, |
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adapter->dbg.last_mp_curr_wr_port, |
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sizeof(adapter->dbg.last_mp_curr_wr_port)); |
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memcpy(info->last_mp_wr_len, adapter->dbg.last_mp_wr_len, |
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sizeof(adapter->dbg.last_mp_wr_len)); |
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info->last_sdio_mp_index = adapter->dbg.last_sdio_mp_index; |
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info->data_sent = adapter->data_sent; |
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info->cmd_sent = adapter->cmd_sent; |
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info->cmd_resp_received = adapter->cmd_resp_received; |
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} |
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return 0; |
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} |
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int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
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struct mwifiex_debug_info *info) |
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{ |
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char *p = buf; |
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struct mwifiex_debug_data *d = &items[0]; |
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size_t size, addr; |
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long val; |
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int i, j; |
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|
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if (!info) |
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return 0; |
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for (i = 0; i < num_of_items; i++) { |
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p += sprintf(p, "%s=", d[i].name); |
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|
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size = d[i].size / d[i].num; |
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|
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if (i < (num_of_items - 3)) |
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addr = d[i].addr + (size_t)info; |
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else /* The last 3 items are struct mwifiex_adapter variables */ |
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addr = d[i].addr + (size_t)priv->adapter; |
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for (j = 0; j < d[i].num; j++) { |
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switch (size) { |
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case 1: |
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val = *((u8 *)addr); |
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break; |
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case 2: |
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val = get_unaligned((u16 *)addr); |
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break; |
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case 4: |
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val = get_unaligned((u32 *)addr); |
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break; |
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case 8: |
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val = get_unaligned((long long *)addr); |
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break; |
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default: |
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val = -1; |
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break; |
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} |
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|
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p += sprintf(p, "%#lx ", val); |
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addr += size; |
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} |
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|
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p += sprintf(p, "\n"); |
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} |
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|
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if (info->tx_tbl_num) { |
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p += sprintf(p, "Tx BA stream table:\n"); |
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for (i = 0; i < info->tx_tbl_num; i++) |
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p += sprintf(p, "tid = %d, ra = %pM\n", |
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info->tx_tbl[i].tid, info->tx_tbl[i].ra); |
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} |
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|
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if (info->rx_tbl_num) { |
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p += sprintf(p, "Rx reorder table:\n"); |
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for (i = 0; i < info->rx_tbl_num; i++) { |
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p += sprintf(p, "tid = %d, ta = %pM, ", |
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info->rx_tbl[i].tid, |
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info->rx_tbl[i].ta); |
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p += sprintf(p, "start_win = %d, ", |
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info->rx_tbl[i].start_win); |
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p += sprintf(p, "win_size = %d, buffer: ", |
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info->rx_tbl[i].win_size); |
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|
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for (j = 0; j < info->rx_tbl[i].win_size; j++) |
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p += sprintf(p, "%c ", |
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info->rx_tbl[i].buffer[j] ? |
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'1' : '0'); |
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|
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p += sprintf(p, "\n"); |
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} |
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} |
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|
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if (info->tdls_peer_num) { |
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p += sprintf(p, "TDLS peer table:\n"); |
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for (i = 0; i < info->tdls_peer_num; i++) { |
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p += sprintf(p, "peer = %pM", |
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info->tdls_list[i].peer_addr); |
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p += sprintf(p, "\n"); |
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} |
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} |
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|
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return p - buf; |
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} |
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|
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static int |
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mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len, |
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struct rxpd *rx_pd) |
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{ |
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u16 stype; |
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u8 category, action_code, *addr2; |
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struct ieee80211_hdr *ieee_hdr = (void *)payload; |
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|
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stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE); |
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|
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switch (stype) { |
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case IEEE80211_STYPE_ACTION: |
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category = *(payload + sizeof(struct ieee80211_hdr)); |
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switch (category) { |
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case WLAN_CATEGORY_PUBLIC: |
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action_code = *(payload + sizeof(struct ieee80211_hdr) |
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+ 1); |
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if (action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) { |
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addr2 = ieee_hdr->addr2; |
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mwifiex_dbg(priv->adapter, INFO, |
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"TDLS discovery response %pM nf=%d, snr=%d\n", |
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addr2, rx_pd->nf, rx_pd->snr); |
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mwifiex_auto_tdls_update_peer_signal(priv, |
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addr2, |
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rx_pd->snr, |
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rx_pd->nf); |
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} |
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break; |
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case WLAN_CATEGORY_BACK: |
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/*we dont indicate BACK action frames to cfg80211*/ |
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mwifiex_dbg(priv->adapter, INFO, |
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"drop BACK action frames"); |
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return -1; |
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default: |
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mwifiex_dbg(priv->adapter, INFO, |
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"unknown public action frame category %d\n", |
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category); |
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} |
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break; |
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default: |
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mwifiex_dbg(priv->adapter, INFO, |
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"unknown mgmt frame subtype %#x\n", stype); |
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return 0; |
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} |
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|
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return 0; |
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} |
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/* |
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* This function processes the received management packet and send it |
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* to the kernel. |
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*/ |
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int |
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mwifiex_process_mgmt_packet(struct mwifiex_private *priv, |
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struct sk_buff *skb) |
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{ |
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struct rxpd *rx_pd; |
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u16 pkt_len; |
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struct ieee80211_hdr *ieee_hdr; |
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|
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if (!skb) |
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return -1; |
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|
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if (!priv->mgmt_frame_mask || |
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priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { |
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mwifiex_dbg(priv->adapter, ERROR, |
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"do not receive mgmt frames on uninitialized intf"); |
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return -1; |
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} |
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|
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rx_pd = (struct rxpd *)skb->data; |
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|
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skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); |
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skb_pull(skb, sizeof(pkt_len)); |
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|
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pkt_len = le16_to_cpu(rx_pd->rx_pkt_length); |
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|
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ieee_hdr = (void *)skb->data; |
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if (ieee80211_is_mgmt(ieee_hdr->frame_control)) { |
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if (mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr, |
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pkt_len, rx_pd)) |
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return -1; |
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} |
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/* Remove address4 */ |
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memmove(skb->data + sizeof(struct ieee80211_hdr_3addr), |
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skb->data + sizeof(struct ieee80211_hdr), |
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pkt_len - sizeof(struct ieee80211_hdr)); |
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|
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pkt_len -= ETH_ALEN + sizeof(pkt_len); |
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rx_pd->rx_pkt_length = cpu_to_le16(pkt_len); |
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|
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cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq, |
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CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len, |
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0); |
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|
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return 0; |
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} |
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|
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/* |
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* This function processes the received packet before sending it to the |
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* kernel. |
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* |
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* It extracts the SKB from the received buffer and sends it to kernel. |
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* In case the received buffer does not contain the data in SKB format, |
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* the function creates a blank SKB, fills it with the data from the |
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* received buffer and then sends this new SKB to the kernel. |
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*/ |
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int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb) |
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{ |
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struct mwifiex_sta_node *src_node; |
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struct ethhdr *p_ethhdr; |
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|
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if (!skb) |
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return -1; |
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|
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priv->stats.rx_bytes += skb->len; |
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priv->stats.rx_packets++; |
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|
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if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { |
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p_ethhdr = (void *)skb->data; |
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src_node = mwifiex_get_sta_entry(priv, p_ethhdr->h_source); |
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if (src_node) { |
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src_node->stats.last_rx = jiffies; |
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src_node->stats.rx_bytes += skb->len; |
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src_node->stats.rx_packets++; |
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} |
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} |
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|
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skb->dev = priv->netdev; |
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skb->protocol = eth_type_trans(skb, priv->netdev); |
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skb->ip_summed = CHECKSUM_NONE; |
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|
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/* This is required only in case of 11n and USB/PCIE as we alloc |
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* a buffer of 4K only if its 11N (to be able to receive 4K |
|
* AMSDU packets). In case of SD we allocate buffers based |
|
* on the size of packet and hence this is not needed. |
|
* |
|
* Modifying the truesize here as our allocation for each |
|
* skb is 4K but we only receive 2K packets and this cause |
|
* the kernel to start dropping packets in case where |
|
* application has allocated buffer based on 2K size i.e. |
|
* if there a 64K packet received (in IP fragments and |
|
* application allocates 64K to receive this packet but |
|
* this packet would almost double up because we allocate |
|
* each 1.5K fragment in 4K and pass it up. As soon as the |
|
* 64K limit hits kernel will start to drop rest of the |
|
* fragments. Currently we fail the Filesndl-ht.scr script |
|
* for UDP, hence this fix |
|
*/ |
|
if ((priv->adapter->iface_type == MWIFIEX_USB || |
|
priv->adapter->iface_type == MWIFIEX_PCIE) && |
|
(skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE)) |
|
skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE); |
|
|
|
netif_rx_any_context(skb); |
|
return 0; |
|
} |
|
|
|
/* |
|
* IOCTL completion callback handler. |
|
* |
|
* This function is called when a pending IOCTL is completed. |
|
* |
|
* If work queue support is enabled, the function wakes up the |
|
* corresponding waiting function. Otherwise, it processes the |
|
* IOCTL response and frees the response buffer. |
|
*/ |
|
int mwifiex_complete_cmd(struct mwifiex_adapter *adapter, |
|
struct cmd_ctrl_node *cmd_node) |
|
{ |
|
WARN_ON(!cmd_node->wait_q_enabled); |
|
mwifiex_dbg(adapter, CMD, "cmd completed: status=%d\n", |
|
adapter->cmd_wait_q.status); |
|
|
|
*cmd_node->condition = true; |
|
wake_up_interruptible(&adapter->cmd_wait_q.wait); |
|
|
|
return 0; |
|
} |
|
|
|
/* This function will return the pointer to station entry in station list |
|
* table which matches specified mac address. |
|
* This function should be called after acquiring RA list spinlock. |
|
* NULL is returned if station entry is not found in associated STA list. |
|
*/ |
|
struct mwifiex_sta_node * |
|
mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
|
{ |
|
struct mwifiex_sta_node *node; |
|
|
|
if (!mac) |
|
return NULL; |
|
|
|
list_for_each_entry(node, &priv->sta_list, list) { |
|
if (!memcmp(node->mac_addr, mac, ETH_ALEN)) |
|
return node; |
|
} |
|
|
|
return NULL; |
|
} |
|
|
|
static struct mwifiex_sta_node * |
|
mwifiex_get_tdls_sta_entry(struct mwifiex_private *priv, u8 status) |
|
{ |
|
struct mwifiex_sta_node *node; |
|
|
|
list_for_each_entry(node, &priv->sta_list, list) { |
|
if (node->tdls_status == status) |
|
return node; |
|
} |
|
|
|
return NULL; |
|
} |
|
|
|
/* If tdls channel switching is on-going, tx data traffic should be |
|
* blocked until the switching stage completed. |
|
*/ |
|
u8 mwifiex_is_tdls_chan_switching(struct mwifiex_private *priv) |
|
{ |
|
struct mwifiex_sta_node *sta_ptr; |
|
|
|
if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) |
|
return false; |
|
|
|
sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_CHAN_SWITCHING); |
|
if (sta_ptr) |
|
return true; |
|
|
|
return false; |
|
} |
|
|
|
u8 mwifiex_is_tdls_off_chan(struct mwifiex_private *priv) |
|
{ |
|
struct mwifiex_sta_node *sta_ptr; |
|
|
|
if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) |
|
return false; |
|
|
|
sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_IN_OFF_CHAN); |
|
if (sta_ptr) |
|
return true; |
|
|
|
return false; |
|
} |
|
|
|
/* If tdls channel switching is on-going or tdls operate on off-channel, |
|
* cmd path should be blocked until tdls switched to base-channel. |
|
*/ |
|
u8 mwifiex_is_send_cmd_allowed(struct mwifiex_private *priv) |
|
{ |
|
if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) |
|
return true; |
|
|
|
if (mwifiex_is_tdls_chan_switching(priv) || |
|
mwifiex_is_tdls_off_chan(priv)) |
|
return false; |
|
|
|
return true; |
|
} |
|
|
|
/* This function will add a sta_node entry to associated station list |
|
* table with the given mac address. |
|
* If entry exist already, existing entry is returned. |
|
* If received mac address is NULL, NULL is returned. |
|
*/ |
|
struct mwifiex_sta_node * |
|
mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
|
{ |
|
struct mwifiex_sta_node *node; |
|
|
|
if (!mac) |
|
return NULL; |
|
|
|
spin_lock_bh(&priv->sta_list_spinlock); |
|
node = mwifiex_get_sta_entry(priv, mac); |
|
if (node) |
|
goto done; |
|
|
|
node = kzalloc(sizeof(*node), GFP_ATOMIC); |
|
if (!node) |
|
goto done; |
|
|
|
memcpy(node->mac_addr, mac, ETH_ALEN); |
|
list_add_tail(&node->list, &priv->sta_list); |
|
|
|
done: |
|
spin_unlock_bh(&priv->sta_list_spinlock); |
|
return node; |
|
} |
|
|
|
/* This function will search for HT IE in association request IEs |
|
* and set station HT parameters accordingly. |
|
*/ |
|
void |
|
mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies, |
|
int ies_len, struct mwifiex_sta_node *node) |
|
{ |
|
struct ieee_types_header *ht_cap_ie; |
|
const struct ieee80211_ht_cap *ht_cap; |
|
|
|
if (!ies) |
|
return; |
|
|
|
ht_cap_ie = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, |
|
ies_len); |
|
if (ht_cap_ie) { |
|
ht_cap = (void *)(ht_cap_ie + 1); |
|
node->is_11n_enabled = 1; |
|
node->max_amsdu = le16_to_cpu(ht_cap->cap_info) & |
|
IEEE80211_HT_CAP_MAX_AMSDU ? |
|
MWIFIEX_TX_DATA_BUF_SIZE_8K : |
|
MWIFIEX_TX_DATA_BUF_SIZE_4K; |
|
} else { |
|
node->is_11n_enabled = 0; |
|
} |
|
|
|
return; |
|
} |
|
|
|
/* This function will delete a station entry from station list */ |
|
void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
|
{ |
|
struct mwifiex_sta_node *node; |
|
|
|
spin_lock_bh(&priv->sta_list_spinlock); |
|
|
|
node = mwifiex_get_sta_entry(priv, mac); |
|
if (node) { |
|
list_del(&node->list); |
|
kfree(node); |
|
} |
|
|
|
spin_unlock_bh(&priv->sta_list_spinlock); |
|
return; |
|
} |
|
|
|
/* This function will delete all stations from associated station list. */ |
|
void mwifiex_del_all_sta_list(struct mwifiex_private *priv) |
|
{ |
|
struct mwifiex_sta_node *node, *tmp; |
|
|
|
spin_lock_bh(&priv->sta_list_spinlock); |
|
|
|
list_for_each_entry_safe(node, tmp, &priv->sta_list, list) { |
|
list_del(&node->list); |
|
kfree(node); |
|
} |
|
|
|
INIT_LIST_HEAD(&priv->sta_list); |
|
spin_unlock_bh(&priv->sta_list_spinlock); |
|
return; |
|
} |
|
|
|
/* This function adds histogram data to histogram array*/ |
|
void mwifiex_hist_data_add(struct mwifiex_private *priv, |
|
u8 rx_rate, s8 snr, s8 nflr) |
|
{ |
|
struct mwifiex_histogram_data *phist_data = priv->hist_data; |
|
|
|
if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) |
|
mwifiex_hist_data_reset(priv); |
|
mwifiex_hist_data_set(priv, rx_rate, snr, nflr); |
|
} |
|
|
|
/* function to add histogram record */ |
|
void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, |
|
s8 nflr) |
|
{ |
|
struct mwifiex_histogram_data *phist_data = priv->hist_data; |
|
s8 nf = -nflr; |
|
s8 rssi = snr - nflr; |
|
|
|
atomic_inc(&phist_data->num_samples); |
|
atomic_inc(&phist_data->rx_rate[rx_rate]); |
|
atomic_inc(&phist_data->snr[snr + 128]); |
|
atomic_inc(&phist_data->noise_flr[nf + 128]); |
|
atomic_inc(&phist_data->sig_str[rssi + 128]); |
|
} |
|
|
|
/* function to reset histogram data during init/reset */ |
|
void mwifiex_hist_data_reset(struct mwifiex_private *priv) |
|
{ |
|
int ix; |
|
struct mwifiex_histogram_data *phist_data = priv->hist_data; |
|
|
|
atomic_set(&phist_data->num_samples, 0); |
|
for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) |
|
atomic_set(&phist_data->rx_rate[ix], 0); |
|
for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) |
|
atomic_set(&phist_data->snr[ix], 0); |
|
for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) |
|
atomic_set(&phist_data->noise_flr[ix], 0); |
|
for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) |
|
atomic_set(&phist_data->sig_str[ix], 0); |
|
} |
|
|
|
void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags) |
|
{ |
|
struct sk_buff *skb; |
|
int buf_len, pad; |
|
|
|
buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ; |
|
|
|
skb = __dev_alloc_skb(buf_len, flags); |
|
|
|
if (!skb) |
|
return NULL; |
|
|
|
skb_reserve(skb, MWIFIEX_RX_HEADROOM); |
|
|
|
pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) - |
|
(long)skb->data; |
|
|
|
skb_reserve(skb, pad); |
|
|
|
return skb; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf); |
|
|
|
void mwifiex_fw_dump_event(struct mwifiex_private *priv) |
|
{ |
|
mwifiex_send_cmd(priv, HostCmd_CMD_FW_DUMP_EVENT, HostCmd_ACT_GEN_SET, |
|
0, NULL, true); |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_fw_dump_event);
|
|
|