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469 lines
11 KiB
469 lines
11 KiB
// SPDX-License-Identifier: ISC |
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/* |
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* Copyright (c) 2014-2017 Qualcomm Atheros, Inc. |
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*/ |
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#include "testmode.h" |
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#include <net/netlink.h> |
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#include <linux/firmware.h> |
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#include "debug.h" |
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#include "wmi.h" |
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#include "hif.h" |
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#include "hw.h" |
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#include "core.h" |
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#include "testmode_i.h" |
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static const struct nla_policy ath10k_tm_policy[ATH10K_TM_ATTR_MAX + 1] = { |
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[ATH10K_TM_ATTR_CMD] = { .type = NLA_U32 }, |
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[ATH10K_TM_ATTR_DATA] = { .type = NLA_BINARY, |
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.len = ATH10K_TM_DATA_MAX_LEN }, |
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[ATH10K_TM_ATTR_WMI_CMDID] = { .type = NLA_U32 }, |
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[ATH10K_TM_ATTR_VERSION_MAJOR] = { .type = NLA_U32 }, |
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[ATH10K_TM_ATTR_VERSION_MINOR] = { .type = NLA_U32 }, |
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}; |
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/* Returns true if callee consumes the skb and the skb should be discarded. |
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* Returns false if skb is not used. Does not sleep. |
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*/ |
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bool ath10k_tm_event_wmi(struct ath10k *ar, u32 cmd_id, struct sk_buff *skb) |
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{ |
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struct sk_buff *nl_skb; |
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bool consumed; |
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int ret; |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, |
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"testmode event wmi cmd_id %d skb %pK skb->len %d\n", |
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cmd_id, skb, skb->len); |
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ath10k_dbg_dump(ar, ATH10K_DBG_TESTMODE, NULL, "", skb->data, skb->len); |
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spin_lock_bh(&ar->data_lock); |
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if (!ar->testmode.utf_monitor) { |
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consumed = false; |
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goto out; |
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} |
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/* Only testmode.c should be handling events from utf firmware, |
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* otherwise all sort of problems will arise as mac80211 operations |
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* are not initialised. |
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*/ |
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consumed = true; |
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nl_skb = cfg80211_testmode_alloc_event_skb(ar->hw->wiphy, |
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2 * sizeof(u32) + skb->len, |
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GFP_ATOMIC); |
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if (!nl_skb) { |
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ath10k_warn(ar, |
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"failed to allocate skb for testmode wmi event\n"); |
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goto out; |
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} |
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ret = nla_put_u32(nl_skb, ATH10K_TM_ATTR_CMD, ATH10K_TM_CMD_WMI); |
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if (ret) { |
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ath10k_warn(ar, |
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"failed to put testmode wmi event cmd attribute: %d\n", |
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ret); |
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kfree_skb(nl_skb); |
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goto out; |
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} |
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ret = nla_put_u32(nl_skb, ATH10K_TM_ATTR_WMI_CMDID, cmd_id); |
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if (ret) { |
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ath10k_warn(ar, |
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"failed to put testmode wmi event cmd_id: %d\n", |
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ret); |
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kfree_skb(nl_skb); |
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goto out; |
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} |
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ret = nla_put(nl_skb, ATH10K_TM_ATTR_DATA, skb->len, skb->data); |
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if (ret) { |
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ath10k_warn(ar, |
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"failed to copy skb to testmode wmi event: %d\n", |
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ret); |
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kfree_skb(nl_skb); |
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goto out; |
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} |
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cfg80211_testmode_event(nl_skb, GFP_ATOMIC); |
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out: |
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spin_unlock_bh(&ar->data_lock); |
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return consumed; |
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} |
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static int ath10k_tm_cmd_get_version(struct ath10k *ar, struct nlattr *tb[]) |
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{ |
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struct sk_buff *skb; |
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int ret; |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, |
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"testmode cmd get version_major %d version_minor %d\n", |
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ATH10K_TESTMODE_VERSION_MAJOR, |
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ATH10K_TESTMODE_VERSION_MINOR); |
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skb = cfg80211_testmode_alloc_reply_skb(ar->hw->wiphy, |
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nla_total_size(sizeof(u32))); |
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if (!skb) |
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return -ENOMEM; |
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ret = nla_put_u32(skb, ATH10K_TM_ATTR_VERSION_MAJOR, |
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ATH10K_TESTMODE_VERSION_MAJOR); |
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if (ret) { |
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kfree_skb(skb); |
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return ret; |
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} |
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ret = nla_put_u32(skb, ATH10K_TM_ATTR_VERSION_MINOR, |
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ATH10K_TESTMODE_VERSION_MINOR); |
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if (ret) { |
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kfree_skb(skb); |
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return ret; |
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} |
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ret = nla_put_u32(skb, ATH10K_TM_ATTR_WMI_OP_VERSION, |
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ar->normal_mode_fw.fw_file.wmi_op_version); |
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if (ret) { |
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kfree_skb(skb); |
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return ret; |
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} |
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return cfg80211_testmode_reply(skb); |
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} |
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static int ath10k_tm_fetch_utf_firmware_api_1(struct ath10k *ar, |
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struct ath10k_fw_file *fw_file) |
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{ |
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char filename[100]; |
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int ret; |
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snprintf(filename, sizeof(filename), "%s/%s", |
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ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE); |
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/* load utf firmware image */ |
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ret = firmware_request_nowarn(&fw_file->firmware, filename, ar->dev); |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode fw request '%s': %d\n", |
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filename, ret); |
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if (ret) { |
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ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n", |
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filename, ret); |
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return ret; |
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} |
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/* We didn't find FW UTF API 1 ("utf.bin") does not advertise |
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* firmware features. Do an ugly hack where we force the firmware |
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* features to match with 10.1 branch so that wmi.c will use the |
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* correct WMI interface. |
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*/ |
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fw_file->wmi_op_version = ATH10K_FW_WMI_OP_VERSION_10_1; |
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fw_file->htt_op_version = ATH10K_FW_HTT_OP_VERSION_10_1; |
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fw_file->firmware_data = fw_file->firmware->data; |
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fw_file->firmware_len = fw_file->firmware->size; |
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return 0; |
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} |
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static int ath10k_tm_fetch_firmware(struct ath10k *ar) |
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{ |
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struct ath10k_fw_components *utf_mode_fw; |
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int ret; |
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char fw_name[100]; |
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int fw_api2 = 2; |
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switch (ar->hif.bus) { |
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case ATH10K_BUS_SDIO: |
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case ATH10K_BUS_USB: |
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scnprintf(fw_name, sizeof(fw_name), "%s-%s-%d.bin", |
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ATH10K_FW_UTF_FILE_BASE, ath10k_bus_str(ar->hif.bus), |
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fw_api2); |
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break; |
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default: |
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scnprintf(fw_name, sizeof(fw_name), "%s-%d.bin", |
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ATH10K_FW_UTF_FILE_BASE, fw_api2); |
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break; |
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} |
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ret = ath10k_core_fetch_firmware_api_n(ar, fw_name, |
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&ar->testmode.utf_mode_fw.fw_file); |
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if (ret == 0) { |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using fw utf api 2"); |
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goto out; |
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} |
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ret = ath10k_tm_fetch_utf_firmware_api_1(ar, &ar->testmode.utf_mode_fw.fw_file); |
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if (ret) { |
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ath10k_err(ar, "failed to fetch utf firmware binary: %d", ret); |
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return ret; |
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} |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode using utf api 1"); |
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out: |
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utf_mode_fw = &ar->testmode.utf_mode_fw; |
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/* Use the same board data file as the normal firmware uses (but |
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* it's still "owned" by normal_mode_fw so we shouldn't free it. |
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*/ |
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utf_mode_fw->board_data = ar->normal_mode_fw.board_data; |
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utf_mode_fw->board_len = ar->normal_mode_fw.board_len; |
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if (!utf_mode_fw->fw_file.otp_data) { |
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ath10k_info(ar, "utf.bin didn't contain otp binary, taking it from the normal mode firmware"); |
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utf_mode_fw->fw_file.otp_data = ar->normal_mode_fw.fw_file.otp_data; |
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utf_mode_fw->fw_file.otp_len = ar->normal_mode_fw.fw_file.otp_len; |
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} |
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return 0; |
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} |
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static int ath10k_tm_cmd_utf_start(struct ath10k *ar, struct nlattr *tb[]) |
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{ |
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const char *ver; |
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int ret; |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode cmd utf start\n"); |
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mutex_lock(&ar->conf_mutex); |
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if (ar->state == ATH10K_STATE_UTF) { |
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ret = -EALREADY; |
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goto err; |
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} |
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/* start utf only when the driver is not in use */ |
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if (ar->state != ATH10K_STATE_OFF) { |
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ret = -EBUSY; |
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goto err; |
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} |
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if (WARN_ON(ar->testmode.utf_mode_fw.fw_file.firmware != NULL)) { |
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/* utf image is already downloaded, it shouldn't be */ |
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ret = -EEXIST; |
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goto err; |
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} |
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ret = ath10k_tm_fetch_firmware(ar); |
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if (ret) { |
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ath10k_err(ar, "failed to fetch UTF firmware: %d", ret); |
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goto err; |
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} |
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if (ar->testmode.utf_mode_fw.fw_file.codeswap_data && |
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ar->testmode.utf_mode_fw.fw_file.codeswap_len) { |
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ret = ath10k_swap_code_seg_init(ar, |
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&ar->testmode.utf_mode_fw.fw_file); |
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if (ret) { |
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ath10k_warn(ar, |
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"failed to init utf code swap segment: %d\n", |
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ret); |
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goto err_release_utf_mode_fw; |
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} |
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} |
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spin_lock_bh(&ar->data_lock); |
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ar->testmode.utf_monitor = true; |
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spin_unlock_bh(&ar->data_lock); |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode wmi version %d\n", |
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ar->testmode.utf_mode_fw.fw_file.wmi_op_version); |
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ret = ath10k_hif_power_up(ar, ATH10K_FIRMWARE_MODE_UTF); |
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if (ret) { |
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ath10k_err(ar, "failed to power up hif (testmode): %d\n", ret); |
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ar->state = ATH10K_STATE_OFF; |
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goto err_release_utf_mode_fw; |
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} |
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ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_UTF, |
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&ar->testmode.utf_mode_fw); |
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if (ret) { |
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ath10k_err(ar, "failed to start core (testmode): %d\n", ret); |
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ar->state = ATH10K_STATE_OFF; |
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goto err_power_down; |
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} |
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ar->state = ATH10K_STATE_UTF; |
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if (strlen(ar->testmode.utf_mode_fw.fw_file.fw_version) > 0) |
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ver = ar->testmode.utf_mode_fw.fw_file.fw_version; |
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else |
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ver = "API 1"; |
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ath10k_info(ar, "UTF firmware %s started\n", ver); |
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mutex_unlock(&ar->conf_mutex); |
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return 0; |
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err_power_down: |
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ath10k_hif_power_down(ar); |
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err_release_utf_mode_fw: |
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if (ar->testmode.utf_mode_fw.fw_file.codeswap_data && |
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ar->testmode.utf_mode_fw.fw_file.codeswap_len) |
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ath10k_swap_code_seg_release(ar, |
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&ar->testmode.utf_mode_fw.fw_file); |
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release_firmware(ar->testmode.utf_mode_fw.fw_file.firmware); |
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ar->testmode.utf_mode_fw.fw_file.firmware = NULL; |
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err: |
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mutex_unlock(&ar->conf_mutex); |
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return ret; |
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} |
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static void __ath10k_tm_cmd_utf_stop(struct ath10k *ar) |
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{ |
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lockdep_assert_held(&ar->conf_mutex); |
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ath10k_core_stop(ar); |
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ath10k_hif_power_down(ar); |
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spin_lock_bh(&ar->data_lock); |
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ar->testmode.utf_monitor = false; |
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spin_unlock_bh(&ar->data_lock); |
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if (ar->testmode.utf_mode_fw.fw_file.codeswap_data && |
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ar->testmode.utf_mode_fw.fw_file.codeswap_len) |
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ath10k_swap_code_seg_release(ar, |
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&ar->testmode.utf_mode_fw.fw_file); |
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release_firmware(ar->testmode.utf_mode_fw.fw_file.firmware); |
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ar->testmode.utf_mode_fw.fw_file.firmware = NULL; |
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ar->state = ATH10K_STATE_OFF; |
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} |
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static int ath10k_tm_cmd_utf_stop(struct ath10k *ar, struct nlattr *tb[]) |
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{ |
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int ret; |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode cmd utf stop\n"); |
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mutex_lock(&ar->conf_mutex); |
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if (ar->state != ATH10K_STATE_UTF) { |
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ret = -ENETDOWN; |
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goto out; |
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} |
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__ath10k_tm_cmd_utf_stop(ar); |
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ret = 0; |
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ath10k_info(ar, "UTF firmware stopped\n"); |
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out: |
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mutex_unlock(&ar->conf_mutex); |
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return ret; |
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} |
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static int ath10k_tm_cmd_wmi(struct ath10k *ar, struct nlattr *tb[]) |
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{ |
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struct sk_buff *skb; |
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int ret, buf_len; |
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u32 cmd_id; |
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void *buf; |
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mutex_lock(&ar->conf_mutex); |
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if (ar->state != ATH10K_STATE_UTF) { |
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ret = -ENETDOWN; |
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goto out; |
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} |
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if (!tb[ATH10K_TM_ATTR_DATA]) { |
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ret = -EINVAL; |
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goto out; |
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} |
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if (!tb[ATH10K_TM_ATTR_WMI_CMDID]) { |
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ret = -EINVAL; |
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goto out; |
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} |
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buf = nla_data(tb[ATH10K_TM_ATTR_DATA]); |
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buf_len = nla_len(tb[ATH10K_TM_ATTR_DATA]); |
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cmd_id = nla_get_u32(tb[ATH10K_TM_ATTR_WMI_CMDID]); |
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ath10k_dbg(ar, ATH10K_DBG_TESTMODE, |
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"testmode cmd wmi cmd_id %d buf %pK buf_len %d\n", |
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cmd_id, buf, buf_len); |
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ath10k_dbg_dump(ar, ATH10K_DBG_TESTMODE, NULL, "", buf, buf_len); |
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skb = ath10k_wmi_alloc_skb(ar, buf_len); |
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if (!skb) { |
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ret = -ENOMEM; |
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goto out; |
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} |
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memcpy(skb->data, buf, buf_len); |
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ret = ath10k_wmi_cmd_send(ar, skb, cmd_id); |
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if (ret) { |
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ath10k_warn(ar, "failed to transmit wmi command (testmode): %d\n", |
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ret); |
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goto out; |
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} |
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ret = 0; |
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out: |
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mutex_unlock(&ar->conf_mutex); |
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return ret; |
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} |
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int ath10k_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
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void *data, int len) |
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{ |
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struct ath10k *ar = hw->priv; |
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struct nlattr *tb[ATH10K_TM_ATTR_MAX + 1]; |
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int ret; |
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ret = nla_parse_deprecated(tb, ATH10K_TM_ATTR_MAX, data, len, |
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ath10k_tm_policy, NULL); |
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if (ret) |
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return ret; |
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if (!tb[ATH10K_TM_ATTR_CMD]) |
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return -EINVAL; |
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switch (nla_get_u32(tb[ATH10K_TM_ATTR_CMD])) { |
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case ATH10K_TM_CMD_GET_VERSION: |
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return ath10k_tm_cmd_get_version(ar, tb); |
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case ATH10K_TM_CMD_UTF_START: |
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return ath10k_tm_cmd_utf_start(ar, tb); |
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case ATH10K_TM_CMD_UTF_STOP: |
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return ath10k_tm_cmd_utf_stop(ar, tb); |
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case ATH10K_TM_CMD_WMI: |
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return ath10k_tm_cmd_wmi(ar, tb); |
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default: |
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return -EOPNOTSUPP; |
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} |
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} |
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void ath10k_testmode_destroy(struct ath10k *ar) |
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{ |
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mutex_lock(&ar->conf_mutex); |
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if (ar->state != ATH10K_STATE_UTF) { |
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/* utf firmware is not running, nothing to do */ |
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goto out; |
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} |
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__ath10k_tm_cmd_utf_stop(ar); |
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out: |
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mutex_unlock(&ar->conf_mutex); |
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}
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