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// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*/
#include <linux/delay.h>
#include "mac.h"
#include "core.h"
#include "hif.h"
#include "debug.h"
#include "wmi.h"
#include "wow.h"
int ath11k_wow_enable(struct ath11k_base *ab)
{
struct ath11k *ar = ath11k_ab_to_ar(ab, 0);
int i, ret;
clear_bit(ATH11K_FLAG_HTC_SUSPEND_COMPLETE, &ab->dev_flags);
for (i = 0; i < ATH11K_WOW_RETRY_NUM; i++) {
reinit_completion(&ab->htc_suspend);
ret = ath11k_wmi_wow_enable(ar);
if (ret) {
ath11k_warn(ab, "failed to issue wow enable: %d\n", ret);
return ret;
}
ret = wait_for_completion_timeout(&ab->htc_suspend, 3 * HZ);
if (ret == 0) {
ath11k_warn(ab,
"timed out while waiting for htc suspend completion\n");
return -ETIMEDOUT;
}
if (test_bit(ATH11K_FLAG_HTC_SUSPEND_COMPLETE, &ab->dev_flags))
/* success, suspend complete received */
return 0;
ath11k_warn(ab, "htc suspend not complete, retrying (try %d)\n",
i);
msleep(ATH11K_WOW_RETRY_WAIT_MS);
}
ath11k_warn(ab, "htc suspend not complete, failing after %d tries\n", i);
return -ETIMEDOUT;
}
int ath11k_wow_wakeup(struct ath11k_base *ab)
{
struct ath11k *ar = ath11k_ab_to_ar(ab, 0);
int ret;
reinit_completion(&ab->wow.wakeup_completed);
ret = ath11k_wmi_wow_host_wakeup_ind(ar);
if (ret) {
ath11k_warn(ab, "failed to send wow wakeup indication: %d\n",
ret);
return ret;
}
ret = wait_for_completion_timeout(&ab->wow.wakeup_completed, 3 * HZ);
if (ret == 0) {
ath11k_warn(ab, "timed out while waiting for wow wakeup completion\n");
return -ETIMEDOUT;
}
return 0;
}
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