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Fri, 13 Oct 2017 06:05:03 +0000 From: To: , , CC: , , Yasunari Takiguchi , Masayuki Yamamoto , Hideki Nozawa , "Kota Yonezawa" , Toshihiko Matsumoto , Satoshi Watanabe Subject: [PATCH v4 06/12] [media] cxd2880: Add integration layer for the driver Date: Fri, 13 Oct 2017 15:08:34 +0900 Message-ID: <20171013060834.21526-1-Yasunari.Takiguchi@sony.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20171013054635.20946-1-Yasunari.Takiguchi@sony.com> References: <20171013054635.20946-1-Yasunari.Takiguchi@sony.com> MIME-Version: 1.0 X-Originating-IP: [43.25.41.74] X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:117.103.190.44; IPV:NLI; CTRY:JP; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(39860400002)(346002)(376002)(2980300002)(438002)(189002)(199003)(49486002)(54906003)(66066001)(316002)(246002)(106466001)(86152003)(6306002)(8676002)(16526018)(356003)(2876002)(1076002)(86362001)(2201001)(305945005)(110136005)(47776003)(2906002)(16586007)(189998001)(8936002)(4326008)(478600001)(36756003)(6666003)(106002)(50466002)(72206003)(2950100002)(76176999)(50226002)(50986999)(39060400002)(5003940100001)(48376002)(512794004)(7736002)(5660300001)(3846002)(107886003)(7636002)(6116002)(2004002); 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Ip=[117.103.190.44]; Helo=[jp.sony.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR13MB0453 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Yasunari Takiguchi 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 Signed-off-by: Masayuki Yamamoto Signed-off-by: Hideki Nozawa Signed-off-by: Kota Yonezawa Signed-off-by: Toshihiko Matsumoto Signed-off-by: Satoshi Watanabe --- [Change list] Changes in V4 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c -removed unnecessary initialization at variable declaration Changes in V3 drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c -changed cxd2880_atomic_read to atomic_read -changed cxd2880_atomic_set to atomic_set -modified return code -modified coding style of if() drivers/media/dvb-frontends/cxd2880/cxd2880_integ.h -modified return code .../media/dvb-frontends/cxd2880/cxd2880_integ.c | 98 ++++++++++++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_integ.h | 44 ++++++++++ 2 files changed, 142 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..7264fc355d6b --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ.c @@ -0,0 +1,98 @@ +/* + * 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 . + */ + +#include "cxd2880_tnrdmd.h" +#include "cxd2880_tnrdmd_mon.h" +#include "cxd2880_integ.h" + +int cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd) +{ + int ret; + struct cxd2880_stopwatch timer; + unsigned int elapsed_time = 0; + u8 cpu_task_completed = 0; + + if (!tnr_dmd) + return -EINVAL; + + ret = cxd2880_tnrdmd_init1(tnr_dmd); + if (ret) + return ret; + + ret = cxd2880_stopwatch_start(&timer); + if (ret) + return ret; + + while (1) { + ret = cxd2880_stopwatch_elapsed(&timer, &elapsed_time); + if (ret) + return ret; + + ret = + cxd2880_tnrdmd_check_internal_cpu_status(tnr_dmd, + &cpu_task_completed); + if (ret) + return ret; + + if (cpu_task_completed) + break; + + if (elapsed_time > CXD2880_TNRDMD_WAIT_INIT_TIMEOUT) + return -ETIME; + ret = + cxd2880_stopwatch_sleep(&timer, + CXD2880_TNRDMD_WAIT_INIT_INTVL); + if (ret) + return ret; + } + + ret = cxd2880_tnrdmd_init2(tnr_dmd); + if (ret) + return ret; + + return 0; +} + +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; +} 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..2b4fe5c3743b --- /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 . + */ + +#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 + +int cxd2880_integ_init(struct cxd2880_tnrdmd *tnr_dmd); + +int cxd2880_integ_cancel(struct cxd2880_tnrdmd *tnr_dmd); + +int cxd2880_integ_check_cancellation(struct cxd2880_tnrdmd + *tnr_dmd); + +#endif