From: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx> These functions monitor the driver and watch for task completion. This is part of the Sony CXD2880 DVB-T2/T tuner + demodulator driver. Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx> Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@xxxxxxxx> Signed-off-by: Hideki Nozawa <Hideki.Nozawa@xxxxxxxx> Signed-off-by: Kota Yonezawa <Kota.Yonezawa@xxxxxxxx> Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@xxxxxxxx> Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@xxxxxxxx> --- .../media/dvb-frontends/cxd2880/cxd2880_integ.c | 99 ++++++++++++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_integ.h | 44 ++++++++++ 2 files changed, 143 insertions(+) create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h 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 000000000000..5ad6685e2a1d --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c @@ -0,0 +1,99 @@ +/* + * cxd2880_integ.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer common functions + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_integ.h" + +enum cxd2880_ret cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + struct cxd2880_stopwatch timer; + u32 elapsed_time = 0; + u8 cpu_task_completed = 0; + + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + ret = cxd2880_tnrdmd_init1(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = cxd2880_stopwatch_start(&timer); + if (ret != CXD2880_RESULT_OK) + return ret; + + while (1) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed_time); + if (ret != CXD2880_RESULT_OK) + return ret; + + ret = + cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd, + &cpu_task_completed); + if (ret != CXD2880_RESULT_OK) + return ret; + + if (cpu_task_completed) + break; + + if (elapsed_time > CXD2880_TNRDMD_WAIT_INIT_TIMEOUT) + return CXD2880_RESULT_ERROR_TIMEOUT; + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_TNRDMD_WAIT_INIT_INTVL); + if (ret != CXD2880_RESULT_OK) + return ret; + } + + ret = cxd2880_tnrdmd_init2(tnr_dmd); + if (ret != CXD2880_RESULT_OK) + return ret; + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + cxd2880_atomic_set(&tnr_dmd->cancel, 1); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd + *tnr_dmd) +{ + if (!tnr_dmd) + return CXD2880_RESULT_ERROR_ARG; + + if (cxd2880_atomic_read(&tnr_dmd->cancel) != 0) + return CXD2880_RESULT_ERROR_CANCEL; + + return CXD2880_RESULT_OK; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h new file mode 100644 index 000000000000..9cfc52dbf9d4 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h @@ -0,0 +1,44 @@ +/* + * cxd2880_integ.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * integration layer common interface + * + * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef CXD2880_INTEG_H +#define CXD2880_INTEG_H + +#include "cxd2880_tnrdmd.h" + +#define CXD2880_TNRDMD_WAIT_INIT_TIMEOUT 500 +#define CXD2880_TNRDMD_WAIT_INIT_INTVL 10 + +#define CXD2880_TNRDMD_WAIT_AGC_STABLE 100 + +enum cxd2880_ret cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd); + +enum cxd2880_ret cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd + *tnr_dmd); + +#endif -- 2.11.0
