From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- .../media/dvb-frontends/cxd2880/cxd2880_integ.c | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c (limited to 'drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c') diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c new file mode 100644 index 000000000..5302ab096 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c @@ -0,0 +1,72 @@ +// 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 +#include + +#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; +} -- cgit v1.2.3