From: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx> 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 <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> --- drivers/media/dvb-frontends/cxd2880/cxd2880.h | 46 ++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_common.c | 84 +++++++++++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_common.h | 86 ++++++++++++++++++++++ drivers/media/dvb-frontends/cxd2880/cxd2880_io.c | 68 +++++++++++++++++ drivers/media/dvb-frontends/cxd2880/cxd2880_io.h | 62 ++++++++++++++++ .../media/dvb-frontends/cxd2880/cxd2880_stdlib.h | 35 +++++++++ .../dvb-frontends/cxd2880/cxd2880_stopwatch_port.c | 71 ++++++++++++++++++ 7 files changed, 452 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_stdlib.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 <http://www.gnu.org/licenses/>. + */ + +#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..850f3a76b2c7 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.c @@ -0,0 +1,84 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include "cxd2880_common.h" + +#define MASKUPPER(n) (((n) == 0) ? 0 : (0xFFFFFFFFU << (32 - (n)))) +#define MASKLOWER(n) (((n) == 0) ? 0 : (0xFFFFFFFFU >> (32 - (n)))) + +int cxd2880_convert2s_complement(u32 value, u32 bitlen) +{ + if ((bitlen == 0) || (bitlen >= 32)) + return (int)value; + + if (value & (u32)(1 << (bitlen - 1))) + return (int)(MASKUPPER(32 - bitlen) | value); + else + return (int)(MASKLOWER(bitlen) & value); +} + +u32 cxd2880_bit_split_from_byte_array(u8 *array, u32 start_bit, u32 bit_num) +{ + u32 value = 0; + u8 *array_read; + u8 bit_read; + u32 len_remain; + + if (!array) + return 0; + if ((bit_num == 0) || (bit_num > 32)) + return 0; + + array_read = array + (start_bit / 8); + bit_read = (u8)(start_bit % 8); + len_remain = bit_num; + + if (bit_read != 0) { + if (((int)len_remain) <= 8 - bit_read) { + value = (*array_read) >> ((8 - bit_read) - len_remain); + len_remain = 0; + } else { + value = *array_read++; + len_remain -= 8 - bit_read; + } + } + + while (len_remain > 0) { + if (len_remain < 8) { + value <<= len_remain; + value |= (*array_read++ >> (8 - len_remain)); + len_remain = 0; + } else { + value <<= 8; + value |= (u32)(*array_read++); + len_remain -= 8; + } + } + + value &= MASKLOWER(bit_num); + + return 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..b1ecb44bca10 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_common.h @@ -0,0 +1,86 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#ifndef CXD2880_COMMON_H +#define CXD2880_COMMON_H + +#include <linux/types.h> + +#ifndef NULL +#ifdef __cplusplus +#define NULL 0 +#else +#define NULL ((void *)0) +#endif +#endif + +#include <linux/delay.h> +#define CXD2880_SLEEP(n) msleep(n) +#ifndef CXD2880_SLEEP_IN_MON +#define CXD2880_SLEEP_IN_MON(n, obj) CXD2880_SLEEP(n) +#endif + +#define CXD2880_ARG_UNUSED(arg) ((void)(arg)) + +enum cxd2880_ret { + CXD2880_RESULT_OK, + CXD2880_RESULT_ERROR_ARG, + CXD2880_RESULT_ERROR_IO, + CXD2880_RESULT_ERROR_SW_STATE, + CXD2880_RESULT_ERROR_HW_STATE, + CXD2880_RESULT_ERROR_TIMEOUT, + CXD2880_RESULT_ERROR_UNLOCK, + CXD2880_RESULT_ERROR_RANGE, + CXD2880_RESULT_ERROR_NOSUPPORT, + CXD2880_RESULT_ERROR_CANCEL, + CXD2880_RESULT_ERROR_OTHER, + CXD2880_RESULT_ERROR_OVERFLOW, + CXD2880_RESULT_OK_CONFIRM +}; + +int cxd2880_convert2s_complement(u32 value, u32 bitlen); + +u32 cxd2880_bit_split_from_byte_array(u8 *array, u32 start_bit, u32 bit_num); + +struct cxd2880_atomic { + int counter; +}; + +#define cxd2880_atomic_set(a, i) ((a)->counter = i) +#define cxd2880_atomic_read(a) ((a)->counter) + +struct cxd2880_stopwatch { + u32 start_time; +}; + +enum cxd2880_ret cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch); + +enum cxd2880_ret cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms); + +enum cxd2880_ret cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + u32 *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..f0f82055a953 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.c @@ -0,0 +1,68 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include "cxd2880_io.h" + +enum cxd2880_ret cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!io) + return CXD2880_RESULT_ERROR_ARG; + + ret = io->write_regs(io, tgt, sub_address, &data, 1); + + return ret; +} + +enum cxd2880_ret cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask) +{ + enum cxd2880_ret ret = CXD2880_RESULT_OK; + + if (!io) + return CXD2880_RESULT_ERROR_ARG; + + if (mask == 0x00) + return CXD2880_RESULT_OK; + + if (mask != 0xFF) { + u8 rdata = 0x00; + + ret = io->read_regs(io, tgt, sub_address, &rdata, 1); + if (ret != CXD2880_RESULT_OK) + return ret; + + data = (u8)((data & mask) | (rdata & (mask ^ 0xFF))); + } + + ret = io->write_reg(io, tgt, sub_address, data); + + return ret; +} 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..4d6db13cf910 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_io.h @@ -0,0 +1,62 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#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_io { + enum cxd2880_ret (*read_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + u8 *data, u32 size); + enum cxd2880_ret (*write_regs)(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, u8 sub_address, + const u8 *data, u32 size); + enum cxd2880_ret (*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; +}; + +enum cxd2880_ret cxd2880_io_common_write_one_reg(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data); + +enum cxd2880_ret cxd2880_io_set_reg_bits(struct cxd2880_io *io, + enum cxd2880_io_tgt tgt, + u8 sub_address, u8 data, u8 mask); + +#endif diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h new file mode 100644 index 000000000000..b9ca1b9df110 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_stdlib.h @@ -0,0 +1,35 @@ +/* + * cxd2880_stdlib.h + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * standard lib function aliases + * + * 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_STDLIB_H +#define CXD2880_STDLIB_H + +#include <linux/string.h> + +#define cxd2880_memcpy memcpy +#define cxd2880_memset memset + +#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..14ad6aa6c4c0 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_stopwatch_port.c @@ -0,0 +1,71 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include "cxd2880_common.h" + +#include <linux/ktime.h> +#include <linux/time.h> +#include <linux/timekeeping.h> + +static u32 get_time_count(void) +{ + struct timespec tp; + + getnstimeofday(&tp); + + return (u32)((tp.tv_sec * 1000) + (tp.tv_nsec / 1000000)); +} + +enum cxd2880_ret cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch) +{ + if (!stopwatch) + return CXD2880_RESULT_ERROR_ARG; + + stopwatch->start_time = get_time_count(); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch, + u32 ms) +{ + if (!stopwatch) + return CXD2880_RESULT_ERROR_ARG; + CXD2880_ARG_UNUSED(*stopwatch); + CXD2880_SLEEP(ms); + + return CXD2880_RESULT_OK; +} + +enum cxd2880_ret cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch, + u32 *elapsed) +{ + if (!stopwatch || !elapsed) + return CXD2880_RESULT_ERROR_ARG; + *elapsed = get_time_count() - stopwatch->start_time; + + return CXD2880_RESULT_OK; +} -- 2.11.0
