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// SPDX-License-Identifier: GPL-2.0
/*
* cxd2880_integ.c
* Sony CXD2880 DVB-T2/T tuner + demodulator driver
* integration layer common functions
*
* Copyright (C) 2016, 2017, 2018 Sony Semiconductor Solutions Corporation
*/
#include <linux/ktime.h>
#include <linux/errno.h>
#include "cxd2880_tnrdmd.h"
#include "cxd2880_tnrdmd_mon.h"
#include "cxd2880_integ.h"
int cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd)
{
int ret;
ktime_t start;
u8 cpu_task_completed = 0;
if (!tnr_dmd)
return -EINVAL;
ret = cxd2880_tnrdmd_init1(tnr_dmd);
if (ret)
return ret;
start = ktime_get();
while (1) {
ret =
cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd,
&cpu_task_completed);
if (ret)
return ret;
if (cpu_task_completed)
break;
if (ktime_to_ms(ktime_sub(ktime_get(), start)) >
CXD2880_TNRDMD_WAIT_INIT_TIMEOUT)
return -ETIMEDOUT;
usleep_range(CXD2880_TNRDMD_WAIT_INIT_INTVL,
CXD2880_TNRDMD_WAIT_INIT_INTVL + 1000);
}
return cxd2880_tnrdmd_init2(tnr_dmd);
}
int cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd)
{
if (!tnr_dmd)
return -EINVAL;
atomic_set(&tnr_dmd->cancel, 1);
return 0;
}
int cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd *tnr_dmd)
{
if (!tnr_dmd)
return -EINVAL;
if (atomic_read(&tnr_dmd->cancel) != 0)
return -ECANCELED;
return 0;
}
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