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Fri, 13 Oct 2017 05:59:24 +0000 Received: from localhost.localdomain (43.25.41.74) by JPYOKXHT103.jp.sony.com (117.103.191.50) with Microsoft SMTP Server (TLS) id 14.3.361.1; Fri, 13 Oct 2017 05:59:24 +0000 From: To: , , CC: , , Yasunari Takiguchi , Masayuki Yamamoto , Hideki Nozawa , "Kota Yonezawa" , Toshihiko Matsumoto , Satoshi Watanabe Subject: [PATCH v4 03/12] [media] cxd2880: Add common files for the driver Date: Fri, 13 Oct 2017 15:02:59 +0900 Message-ID: <20171013060259.21221-1-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:117.103.190.41; IPV:NLI; CTRY:JP; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(346002)(39860400002)(376002)(2980300002)(438002)(189002)(199003)(6116002)(1076002)(50986999)(305945005)(356003)(66066001)(7736002)(246002)(8936002)(3846002)(8676002)(7636002)(512794004)(106466001)(76176999)(39060400002)(72206003)(478600001)(4326008)(47776003)(16526018)(50226002)(36756003)(107886003)(2906002)(86152003)(54906003)(86362001)(6666003)(575784001)(5890100001)(2201001)(2950100002)(316002)(5003940100001)(2876002)(49486002)(16586007)(50466002)(110136005)(6306002)(5660300001)(48376002)(106002)(189998001)(2004002); 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Ip=[117.103.190.41]; Helo=[jp.sony.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR1301MB2023 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 are common files for the driver for the Sony CXD2880 DVB-T2/T tuner + demodulator. These contains helper functions for the 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_io.c -removed unnecessary initialization at variable declaration -modified how to write consecutive registers Changes in V3 drivers/media/dvb-frontends/cxd2880/cxd2880.h -no change drivers/media/dvb-frontends/cxd2880/cxd2880_common.c -changed MASKUPPER/MASKLOWER with GENMASK drivers/media/dvb-frontends/cxd2880/cxd2880_common.h -removed definition NULL and SONY_SLEEP -changed CXD2880_SLEEP to usleep_range -changed cxd2880_atomic_set to atomic_set -removed cxd2880_atomic struct and cxd2880_atomic_read -changed stop-watch function -modified return code drivers/media/dvb-frontends/cxd2880/cxd2880_io.c -removed unnecessary cast -modified return code -changed hexadecimal code to lower case. drivers/media/dvb-frontends/cxd2880/cxd2880_io.h -modified return code drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c -changed CXD2880_SLEEP to usleep_range -changed stop-watch function -modified return code #drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h -cxd2880_stdlib.h file was removed from V3. drivers/media/dvb-frontends/cxd2880/cxd2880.h | 46 +++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_common.c | 38 +++++++++ .../media/dvb-frontends/cxd2880/cxd2880_common.h | 50 ++++++++++++ drivers/media/dvb-frontends/cxd2880/cxd2880_io.c | 89 ++++++++++++++++++++++ drivers/media/dvb-frontends/cxd2880/cxd2880_io.h | 71 +++++++++++++++++ .../dvb-frontends/cxd2880/cxd2880_stopwatch_port.c | 60 +++++++++++++++ 6 files changed, 354 insertions(+) create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_common.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_common.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_io.c create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_io.h create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880.h b/drivers/media/dvb-frontends/cxd2880/cxd2880.h new file mode 100644 index 000000000000..281f9a784eb5 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880.h @@ -0,0 +1,46 @@ +/* + * cxd2880.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver public definitions + * + * 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_H +#define CXD2880_H + +struct cxd2880_config { + struct spi_device *spi; + struct mutex *spi_mutex; /* For SPI access exclusive control */ +}; + +#if IS_REACHABLE(CONFIG_DVB_CXD2880) +extern struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe, + struct cxd2880_config *cfg); +#else +static inline struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe, + struct cxd2880_config *cfg) +{ + pr_warn("%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_CXD2880 */ + +#endif /* CXD2880_H */ diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c new file mode 100644 index 000000000000..ffaa140bb8cb --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c @@ -0,0 +1,38 @@ +/* + * cxd2880_common.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * 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_common.h" + +int cxd2880_convert2s_complement(u32 value, u32 bitlen) +{ + if ((bitlen == 0) || (bitlen >= 32)) + return (int)value; + + if (value & (u32)(1 << (bitlen - 1))) + return (int)(GENMASK(31, bitlen) | value); + else + return (int)(GENMASK(bitlen - 1, 0) & value); +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h new file mode 100644 index 000000000000..cf6b800809ee --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h @@ -0,0 +1,50 @@ +/* + * cxd2880_common.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver common definitions + * + * 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_COMMON_H +#define CXD2880_COMMON_H + +#include +#include +#include +#include + +#define CXD2880_ARG_UNUSED(arg) ((void)(arg)) + +int cxd2880_convert2s_complement(u32 value, u32 bitlen); + +struct cxd2880_stopwatch { + unsigned long start_time; +}; + +int cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch); + +int cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms); + +int cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + unsigned int *elapsed); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c new file mode 100644 index 000000000000..bdb0b7982401 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c @@ -0,0 +1,89 @@ +/* + * cxd2880_io.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * register I/O interface 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_io.h" + +int cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data) +{ + int ret; + + if (!io) + return -EINVAL; + + ret = io->write_regs(io, tgt, sub_address, &data, 1); + + return ret; +} + +int cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask) +{ + int ret; + + if (!io) + return -EINVAL; + + if (mask == 0x00) + return 0; + + if (mask != 0xff) { + u8 rdata = 0x00; + + ret = io->read_regs(io, tgt, sub_address, &rdata, 1); + if (ret) + return ret; + + data = (data & mask) | (rdata & (mask ^ 0xff)); + } + + ret = io->write_reg(io, tgt, sub_address, data); + + return ret; +} + +int cxd2880_io_write_multi_regs(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + const struct cxd2880_reg_value reg_value[], + u8 size) +{ + int ret; + int i; + + if (!io) + return -EINVAL; + + for (i = 0; i < size ; i++) { + ret = io->write_reg(io, tgt, reg_value[i].addr, + reg_value[i].value); + if (ret) + return ret; + } + + return 0; +} diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h new file mode 100644 index 000000000000..f7aee6c6480e --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h @@ -0,0 +1,71 @@ +/* + * cxd2880_io.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * register I/O interface definitions + * + * 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_IO_H +#define CXD2880_IO_H + +#include "cxd2880_common.h" + +enum cxd2880_io_tgt { + CXD2880_IO_TGT_SYS, + CXD2880_IO_TGT_DMD +}; + +struct cxd2880_reg_value { + u8 addr; + u8 value; +}; + +struct cxd2880_io { + int (*read_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + u8 *data, u32 size); + int (*write_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + const u8 *data, u32 size); + int (*write_reg)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + u8 data); + void *if_object; + u8 i2c_address_sys; + u8 i2c_address_demod; + u8 slave_select; + void *user; +}; + +int cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data); + +int cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask); + +int cxd2880_io_write_multi_regs(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + const struct cxd2880_reg_value reg_value[], + u8 size); +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c new file mode 100644 index 000000000000..a4a1e29de653 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c @@ -0,0 +1,60 @@ +/* + * cxd2880_stopwatch_port.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * time measurement 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 + +#include "cxd2880_common.h" + +int cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch) +{ + if (!stopwatch) + return -EINVAL; + + stopwatch->start_time = jiffies; + + return 0; +} + +int cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms) +{ + if (!stopwatch) + return -EINVAL; + CXD2880_ARG_UNUSED(*stopwatch); + usleep_range(ms * 10000, ms * 10000 + 1000); + + return 0; +} + +int cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + unsigned int *elapsed) +{ + if (!stopwatch || !elapsed) + return -EINVAL; + *elapsed = jiffies_to_msecs(jiffies - stopwatch->start_time); + + return 0; +}