From b500cce31ef4ec3c68a5c98e90e3e6dbe10d6722 Mon Sep 17 00:00:00 2001 From: Simon Wilks Date: Sat, 13 Jul 2013 01:08:06 +0200 Subject: Major refactor of HoTT drivers and finished sensor read implementation. --- src/drivers/hott/comms.c | 107 ------- src/drivers/hott/comms.cpp | 107 +++++++ src/drivers/hott/hott_sensors/hott_sensors.c | 228 -------------- src/drivers/hott/hott_sensors/hott_sensors.cpp | 238 +++++++++++++++ src/drivers/hott/hott_sensors/module.mk | 6 +- src/drivers/hott/hott_telemetry/hott_telemetry.c | 284 ------------------ src/drivers/hott/hott_telemetry/hott_telemetry.cpp | 299 +++++++++++++++++++ src/drivers/hott/hott_telemetry/module.mk | 6 +- src/drivers/hott/messages.c | 294 ------------------ src/drivers/hott/messages.cpp | 332 +++++++++++++++++++++ src/drivers/hott/messages.h | 34 +-- 11 files changed, 989 insertions(+), 946 deletions(-) delete mode 100644 src/drivers/hott/comms.c create mode 100644 src/drivers/hott/comms.cpp delete mode 100644 src/drivers/hott/hott_sensors/hott_sensors.c create mode 100644 src/drivers/hott/hott_sensors/hott_sensors.cpp delete mode 100644 src/drivers/hott/hott_telemetry/hott_telemetry.c create mode 100644 src/drivers/hott/hott_telemetry/hott_telemetry.cpp delete mode 100644 src/drivers/hott/messages.c create mode 100644 src/drivers/hott/messages.cpp (limited to 'src/drivers/hott') diff --git a/src/drivers/hott/comms.c b/src/drivers/hott/comms.c deleted file mode 100644 index a2de87407..000000000 --- a/src/drivers/hott/comms.c +++ /dev/null @@ -1,107 +0,0 @@ -/**************************************************************************** - * - * Copyright (c) 2013 PX4 Development Team. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name PX4 nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 - * COPYRIGHT OWNER OR CONTRIBUTORS 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. - * - ****************************************************************************/ - -/** - * @file comms.c - * @author Simon Wilks - * - */ - -#include "comms.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -int -open_uart(const char *device) -{ - /* baud rate */ - static const speed_t speed = B19200; - - /* open uart */ - const int uart = open(device, O_RDWR | O_NOCTTY); - - if (uart < 0) { - err(1, "Error opening port: %s", device); - } - - /* Back up the original uart configuration to restore it after exit */ - int termios_state; - struct termios uart_config_original; - if ((termios_state = tcgetattr(uart, &uart_config_original)) < 0) { - close(uart); - err(1, "Error getting baudrate / termios config for %s: %d", device, termios_state); - } - - /* Fill the struct for the new configuration */ - struct termios uart_config; - tcgetattr(uart, &uart_config); - - /* Clear ONLCR flag (which appends a CR for every LF) */ - uart_config.c_oflag &= ~ONLCR; - - /* Set baud rate */ - if (cfsetispeed(&uart_config, speed) < 0 || cfsetospeed(&uart_config, speed) < 0) { - close(uart); - err(1, "Error setting baudrate / termios config for %s: %d (cfsetispeed, cfsetospeed)", - device, termios_state); - } - - if ((termios_state = tcsetattr(uart, TCSANOW, &uart_config)) < 0) { - close(uart); - err(1, "Error setting baudrate / termios config for %s (tcsetattr)", device); - } - - /* Activate single wire mode */ - ioctl(uart, TIOCSSINGLEWIRE, SER_SINGLEWIRE_ENABLED); - - return uart; -} - - - - - - - - - - diff --git a/src/drivers/hott/comms.cpp b/src/drivers/hott/comms.cpp new file mode 100644 index 000000000..a2de87407 --- /dev/null +++ b/src/drivers/hott/comms.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** + * + * Copyright (c) 2013 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/** + * @file comms.c + * @author Simon Wilks + * + */ + +#include "comms.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int +open_uart(const char *device) +{ + /* baud rate */ + static const speed_t speed = B19200; + + /* open uart */ + const int uart = open(device, O_RDWR | O_NOCTTY); + + if (uart < 0) { + err(1, "Error opening port: %s", device); + } + + /* Back up the original uart configuration to restore it after exit */ + int termios_state; + struct termios uart_config_original; + if ((termios_state = tcgetattr(uart, &uart_config_original)) < 0) { + close(uart); + err(1, "Error getting baudrate / termios config for %s: %d", device, termios_state); + } + + /* Fill the struct for the new configuration */ + struct termios uart_config; + tcgetattr(uart, &uart_config); + + /* Clear ONLCR flag (which appends a CR for every LF) */ + uart_config.c_oflag &= ~ONLCR; + + /* Set baud rate */ + if (cfsetispeed(&uart_config, speed) < 0 || cfsetospeed(&uart_config, speed) < 0) { + close(uart); + err(1, "Error setting baudrate / termios config for %s: %d (cfsetispeed, cfsetospeed)", + device, termios_state); + } + + if ((termios_state = tcsetattr(uart, TCSANOW, &uart_config)) < 0) { + close(uart); + err(1, "Error setting baudrate / termios config for %s (tcsetattr)", device); + } + + /* Activate single wire mode */ + ioctl(uart, TIOCSSINGLEWIRE, SER_SINGLEWIRE_ENABLED); + + return uart; +} + + + + + + + + + + diff --git a/src/drivers/hott/hott_sensors/hott_sensors.c b/src/drivers/hott/hott_sensors/hott_sensors.c deleted file mode 100644 index 41ca0c92f..000000000 --- a/src/drivers/hott/hott_sensors/hott_sensors.c +++ /dev/null @@ -1,228 +0,0 @@ -/**************************************************************************** - * - * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. - * Author: Simon Wilks - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name PX4 nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 - * COPYRIGHT OWNER OR CONTRIBUTORS 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. - * - ****************************************************************************/ - -/** - * @file hott_sensors.c - * @author Simon Wilks - * - * Graupner HoTT sensor driver implementation. - * - * Poll any sensors connected to the PX4 via the telemetry wire. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../comms.h" -#include "../messages.h" - -static int thread_should_exit = false; /**< Deamon exit flag */ -static int thread_running = false; /**< Deamon status flag */ -static int deamon_task; /**< Handle of deamon task / thread */ -static const char daemon_name[] = "hott_sensors"; -static const char commandline_usage[] = "usage: hott_sensors start|status|stop [-d ]"; - -/** - * Deamon management function. - */ -__EXPORT int hott_sensors_main(int argc, char *argv[]); - -/** - * Mainloop of daemon. - */ -int hott_sensors_thread_main(int argc, char *argv[]); - -static int recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id); -static int send_poll(int uart, uint8_t *buffer, size_t size); - -int -send_poll(int uart, uint8_t *buffer, size_t size) -{ - for (size_t i = 0; i < size; i++) { - write(uart, &buffer[i], sizeof(buffer[i])); - - /* Sleep before sending the next byte. */ - usleep(POST_WRITE_DELAY_IN_USECS); - } - - /* A hack the reads out what was written so the next read from the receiver doesn't get it. */ - /* TODO: Fix this!! */ - uint8_t dummy[size]; - read(uart, &dummy, size); - - return OK; -} - -int -recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id) -{ - static const int timeout_ms = 1000; - struct pollfd fds[] = { { .fd = uart, .events = POLLIN } }; - - - // XXX should this poll be inside the while loop??? - if (poll(fds, 1, timeout_ms) > 0) { - int i = 0; - bool stop_byte_read = false; - while (true) { - read(uart, &buffer[i], sizeof(buffer[i])); - - if (stop_byte_read) { - // XXX process checksum - *size = ++i; - return OK; - } - // XXX can some other field not have the STOP BYTE value? - if (buffer[i] == STOP_BYTE) { - *id = buffer[1]; - stop_byte_read = true; - } - i++; - } - } - return ERROR; -} - -int -hott_sensors_thread_main(int argc, char *argv[]) -{ - warnx("starting"); - - thread_running = true; - - const char *device = "/dev/ttyS2"; /**< Default telemetry port: USART5 */ - - /* read commandline arguments */ - for (int i = 0; i < argc && argv[i]; i++) { - if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--device") == 0) { //device set - if (argc > i + 1) { - device = argv[i + 1]; - - } else { - thread_running = false; - errx(1, "missing parameter to -d\n%s", commandline_usage); - } - } - } - - /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */ - const int uart = open_uart(device); - if (uart < 0) { - errx(1, "Failed opening HoTT UART, exiting."); - thread_running = false; - } - - pub_messages_init(); - - uint8_t buffer[MESSAGE_BUFFER_SIZE]; - size_t size = 0; - uint8_t id = 0; - while (!thread_should_exit) { - // Currently we only support a General Air Module sensor. - build_gam_request(&buffer, &size); - send_poll(uart, buffer, size); - - // The sensor will need a little time before it starts sending. - usleep(5000); - - recv_data(uart, &buffer, &size, &id); - - // Determine which moduel sent it and process accordingly. - if (id == GAM_SENSOR_ID) { - publish_gam_message(buffer); - } else { - warnx("Unknown sensor ID: %d", id); - } - } - - warnx("exiting"); - close(uart); - thread_running = false; - - return 0; -} - -/** - * Process command line arguments and start the daemon. - */ -int -hott_sensors_main(int argc, char *argv[]) -{ - if (argc < 1) { - errx(1, "missing command\n%s", commandline_usage); - } - - if (!strcmp(argv[1], "start")) { - - if (thread_running) { - warnx("deamon already running"); - exit(0); - } - - thread_should_exit = false; - deamon_task = task_spawn(daemon_name, - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 40, - 2048, - hott_sensors_thread_main, - (argv) ? (const char **)&argv[2] : (const char **)NULL); - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - warnx("daemon is running"); - - } else { - warnx("daemon not started"); - } - - exit(0); - } - - errx(1, "unrecognized command\n%s", commandline_usage); -} diff --git a/src/drivers/hott/hott_sensors/hott_sensors.cpp b/src/drivers/hott/hott_sensors/hott_sensors.cpp new file mode 100644 index 000000000..ad7e74e62 --- /dev/null +++ b/src/drivers/hott/hott_sensors/hott_sensors.cpp @@ -0,0 +1,238 @@ +/**************************************************************************** + * + * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. + * Author: Simon Wilks + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/** + * @file hott_sensors.c + * @author Simon Wilks + * + * Graupner HoTT sensor driver implementation. + * + * Poll any sensors connected to the PX4 via the telemetry wire. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../comms.h" +#include "../messages.h" + +#define DEFAULT_UART "/dev/ttyS2"; /**< USART5 */ + +/* Oddly, ERROR is not defined for C++ */ +#ifdef ERROR +# undef ERROR +#endif +static const int ERROR = -1; + +static int thread_should_exit = false; /**< Deamon exit flag */ +static int thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ +static const char daemon_name[] = "hott_sensors"; +static const char commandline_usage[] = "usage: hott_sensors start|status|stop [-d ]"; + +/** + * Deamon management function. + */ +extern "C" __EXPORT int hott_sensors_main(int argc, char *argv[]); + +/** + * Mainloop of daemon. + */ +int hott_sensors_thread_main(int argc, char *argv[]); + +static int recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id); +static int send_poll(int uart, uint8_t *buffer, size_t size); + +int +send_poll(int uart, uint8_t *buffer, size_t size) +{ + for (size_t i = 0; i < size; i++) { + write(uart, &buffer[i], sizeof(buffer[i])); + + /* Sleep before sending the next byte. */ + usleep(POST_WRITE_DELAY_IN_USECS); + } + + /* A hack the reads out what was written so the next read from the receiver doesn't get it. */ + /* TODO: Fix this!! */ + uint8_t dummy[size]; + read(uart, &dummy, size); + + return OK; +} + +int +recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id) +{ + static const int timeout_ms = 1000; + + struct pollfd fds; + fds.fd = uart; + fds.events = POLLIN; + + // XXX should this poll be inside the while loop??? + if (poll(&fds, 1, timeout_ms) > 0) { + int i = 0; + bool stop_byte_read = false; + while (true) { + read(uart, &buffer[i], sizeof(buffer[i])); + + if (stop_byte_read) { + // XXX process checksum + *size = ++i; + return OK; + } + // XXX can some other field not have the STOP BYTE value? + if (buffer[i] == STOP_BYTE) { + *id = buffer[1]; + stop_byte_read = true; + } + i++; + } + } + return ERROR; +} + +int +hott_sensors_thread_main(int argc, char *argv[]) +{ + warnx("starting"); + + thread_running = true; + + const char *device = DEFAULT_UART; + + /* read commandline arguments */ + for (int i = 0; i < argc && argv[i]; i++) { + if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--device") == 0) { //device set + if (argc > i + 1) { + device = argv[i + 1]; + + } else { + thread_running = false; + errx(1, "missing parameter to -d\n%s", commandline_usage); + } + } + } + + /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */ + const int uart = open_uart(device); + if (uart < 0) { + errx(1, "Failed opening HoTT UART, exiting."); + thread_running = false; + } + + init_pub_messages(); + + uint8_t buffer[MAX_MESSAGE_BUFFER_SIZE]; + size_t size = 0; + uint8_t id = 0; + while (!thread_should_exit) { + // Currently we only support a General Air Module sensor. + build_gam_request(&buffer[0], &size); + send_poll(uart, buffer, size); + + // The sensor will need a little time before it starts sending. + usleep(5000); + + recv_data(uart, &buffer[0], &size, &id); + + // Determine which moduel sent it and process accordingly. + if (id == GAM_SENSOR_ID) { + publish_gam_message(buffer); + } else { + warnx("Unknown sensor ID: %d", id); + } + } + + warnx("exiting"); + close(uart); + thread_running = false; + + return 0; +} + +/** + * Process command line arguments and start the daemon. + */ +int +hott_sensors_main(int argc, char *argv[]) +{ + if (argc < 1) { + errx(1, "missing command\n%s", commandline_usage); + } + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + warnx("deamon already running"); + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn_cmd(daemon_name, + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 40, + 2048, + hott_sensors_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + warnx("daemon is running"); + + } else { + warnx("daemon not started"); + } + + exit(0); + } + + errx(1, "unrecognized command\n%s", commandline_usage); +} diff --git a/src/drivers/hott/hott_sensors/module.mk b/src/drivers/hott/hott_sensors/module.mk index ca65d3de2..b5f5762ba 100644 --- a/src/drivers/hott/hott_sensors/module.mk +++ b/src/drivers/hott/hott_sensors/module.mk @@ -37,6 +37,6 @@ MODULE_COMMAND = hott_sensors -SRCS = hott_sensors.c \ - ../messages.c \ - ../comms.c +SRCS = hott_sensors.cpp \ + ../messages.cpp \ + ../comms.cpp diff --git a/src/drivers/hott/hott_telemetry/hott_telemetry.c b/src/drivers/hott/hott_telemetry/hott_telemetry.c deleted file mode 100644 index a88f357f6..000000000 --- a/src/drivers/hott/hott_telemetry/hott_telemetry.c +++ /dev/null @@ -1,284 +0,0 @@ -/**************************************************************************** - * - * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. - * Author: Simon Wilks - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name PX4 nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 - * COPYRIGHT OWNER OR CONTRIBUTORS 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. - * - ****************************************************************************/ - -/** - * @file hott_telemetry_main.c - * @author Simon Wilks - * - * Graupner HoTT Telemetry implementation. - * - * The HoTT receiver polls each device at a regular interval at which point - * a data packet can be returned if necessary. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../comms.h" -#include "../messages.h" - -static int thread_should_exit = false; /**< Deamon exit flag */ -static int thread_running = false; /**< Deamon status flag */ -static int deamon_task; /**< Handle of deamon task / thread */ -static const char daemon_name[] = "hott_telemetry"; -static const char commandline_usage[] = "usage: hott_telemetry start|status|stop [-d ]"; - -/** - * Deamon management function. - */ -__EXPORT int hott_telemetry_main(int argc, char *argv[]); - -/** - * Mainloop of daemon. - */ -int hott_telemetry_thread_main(int argc, char *argv[]); - -static int recv_req_id(int uart, uint8_t *id); -static int send_data(int uart, uint8_t *buffer, size_t size); - -int -recv_req_id(int uart, uint8_t *id) -{ - static const int timeout_ms = 1000; // TODO make it a define - struct pollfd fds[] = { { .fd = uart, .events = POLLIN } }; - - uint8_t mode; - - if (poll(fds, 1, timeout_ms) > 0) { - /* Get the mode: binary or text */ - read(uart, &mode, sizeof(mode)); - - /* if we have a binary mode request */ - if (mode != BINARY_MODE_REQUEST_ID) { - return ERROR; - } - - /* Read the device ID being polled */ - read(uart, id, sizeof(*id)); - } else { - warnx("UART timeout on TX/RX port"); - return ERROR; - } - - return OK; -} - -int -recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id) -{ - usleep(5000); - - static const int timeout_ms = 1000; - struct pollfd fds[] = { { .fd = uart, .events = POLLIN } }; - - - // XXX should this poll be inside the while loop??? - if (poll(fds, 1, timeout_ms) > 0) { - int i = 0; - bool stop_byte_read = false; - while (true) { - read(uart, &buffer[i], sizeof(buffer[i])); - //printf("[%d]: %d\n", i, buffer[i]); - - if (stop_byte_read) { - // process checksum - *size = ++i; - return OK; - } - // XXX can some other field not have the STOP BYTE value? - if (buffer[i] == STOP_BYTE) { - *id = buffer[1]; - stop_byte_read = true; - } - i++; - } - } - return ERROR; -} - -int -send_data(int uart, uint8_t *buffer, size_t size) -{ - usleep(POST_READ_DELAY_IN_USECS); - - uint16_t checksum = 0; - for (size_t i = 0; i < size; i++) { - if (i == size - 1) { - /* Set the checksum: the first uint8_t is taken as the checksum. */ - buffer[i] = checksum & 0xff; - - } else { - checksum += buffer[i]; - } - - write(uart, &buffer[i], sizeof(buffer[i])); - - /* Sleep before sending the next byte. */ - usleep(POST_WRITE_DELAY_IN_USECS); - } - - /* A hack the reads out what was written so the next read from the receiver doesn't get it. */ - /* TODO: Fix this!! */ - uint8_t dummy[size]; - read(uart, &dummy, size); - - return OK; -} - -int -hott_telemetry_thread_main(int argc, char *argv[]) -{ - warnx("starting"); - - thread_running = true; - - const char *device = "/dev/ttyS1"; /**< Default telemetry port: USART2 */ - - /* read commandline arguments */ - for (int i = 0; i < argc && argv[i]; i++) { - if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--device") == 0) { //device set - if (argc > i + 1) { - device = argv[i + 1]; - - } else { - thread_running = false; - errx(1, "missing parameter to -d\n%s", commandline_usage); - } - } - } - - /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */ - const int uart = open_uart(device); - if (uart < 0) { - errx(1, "Failed opening HoTT UART, exiting."); - thread_running = false; - } - - sub_messages_init(); - - uint8_t buffer[MESSAGE_BUFFER_SIZE]; - size_t size = 0; - uint8_t id = 0; - bool connected = true; - while (!thread_should_exit) { - // Listen for and serve poll from the receiver. - if (recv_req_id(uart, &id) == OK) { - if (!connected) { - connected = true; - warnx("OK"); - } - - switch (id) { - case EAM_SENSOR_ID: - build_eam_response(buffer, &size); - break; - - case GPS_SENSOR_ID: - build_gps_response(buffer, &size); - break; - - default: - continue; // Not a module we support. - } - - send_data(uart, buffer, size); - } else { - connected = false; - warnx("syncing"); - } - } - - warnx("exiting"); - - close(uart); - - thread_running = false; - - return 0; -} - -/** - * Process command line arguments and start the daemon. - */ -int -hott_telemetry_main(int argc, char *argv[]) -{ - if (argc < 1) { - errx(1, "missing command\n%s", commandline_usage); - } - - if (!strcmp(argv[1], "start")) { - - if (thread_running) { - warnx("deamon already running"); - exit(0); - } - - thread_should_exit = false; - deamon_task = task_spawn_cmd(daemon_name, - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 40, - 2048, - hott_telemetry_thread_main, - (argv) ? (const char **)&argv[2] : (const char **)NULL); - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - warnx("daemon is running"); - - } else { - warnx("daemon not started"); - } - - exit(0); - } - - errx(1, "unrecognized command\n%s", commandline_usage); -} diff --git a/src/drivers/hott/hott_telemetry/hott_telemetry.cpp b/src/drivers/hott/hott_telemetry/hott_telemetry.cpp new file mode 100644 index 000000000..1c68e06b1 --- /dev/null +++ b/src/drivers/hott/hott_telemetry/hott_telemetry.cpp @@ -0,0 +1,299 @@ +/**************************************************************************** + * + * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. + * Author: Simon Wilks + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/** + * @file hott_telemetry_main.c + * @author Simon Wilks + * + * Graupner HoTT Telemetry implementation. + * + * The HoTT receiver polls each device at a regular interval at which point + * a data packet can be returned if necessary. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../comms.h" +#include "../messages.h" + +#define DEFAULT_UART "/dev/ttyS1"; /**< USART2 */ + +/* Oddly, ERROR is not defined for C++ */ +#ifdef ERROR +# undef ERROR +#endif +static const int ERROR = -1; + +static int thread_should_exit = false; /**< Deamon exit flag */ +static int thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ +static const char daemon_name[] = "hott_telemetry"; +static const char commandline_usage[] = "usage: hott_telemetry start|status|stop [-d ]"; + +/** + * Deamon management function. + */ +extern "C" __EXPORT int hott_telemetry_main(int argc, char *argv[]); + +/** + * Mainloop of daemon. + */ +int hott_telemetry_thread_main(int argc, char *argv[]); + +static int recv_req_id(int uart, uint8_t *id); +static int send_data(int uart, uint8_t *buffer, size_t size); + +int +recv_req_id(int uart, uint8_t *id) +{ + static const int timeout_ms = 1000; // TODO make it a define + + uint8_t mode; + + struct pollfd fds; + fds.fd = uart; + fds.events = POLLIN; + + if (poll(&fds, 1, timeout_ms) > 0) { + /* Get the mode: binary or text */ + read(uart, &mode, sizeof(mode)); + + /* if we have a binary mode request */ + if (mode != BINARY_MODE_REQUEST_ID) { + return ERROR; + } + + /* Read the device ID being polled */ + read(uart, id, sizeof(*id)); + } else { + warnx("UART timeout on TX/RX port"); + return ERROR; + } + + return OK; +} + +int +recv_data(int uart, uint8_t *buffer, size_t *size, uint8_t *id) +{ + usleep(5000); + + static const int timeout_ms = 1000; + + struct pollfd fds; + fds.fd = uart; + fds.events = POLLIN; + + // XXX should this poll be inside the while loop??? + if (poll(&fds, 1, timeout_ms) > 0) { + int i = 0; + bool stop_byte_read = false; + while (true) { + read(uart, &buffer[i], sizeof(buffer[i])); + //printf("[%d]: %d\n", i, buffer[i]); + + if (stop_byte_read) { + // process checksum + *size = ++i; + return OK; + } + // XXX can some other field not have the STOP BYTE value? + if (buffer[i] == STOP_BYTE) { + *id = buffer[1]; + stop_byte_read = true; + } + i++; + } + } + return ERROR; +} + +int +send_data(int uart, uint8_t *buffer, size_t size) +{ + usleep(POST_READ_DELAY_IN_USECS); + + uint16_t checksum = 0; + for (size_t i = 0; i < size; i++) { + if (i == size - 1) { + /* Set the checksum: the first uint8_t is taken as the checksum. */ + buffer[i] = checksum & 0xff; + + } else { + checksum += buffer[i]; + } + + write(uart, &buffer[i], sizeof(buffer[i])); + + /* Sleep before sending the next byte. */ + usleep(POST_WRITE_DELAY_IN_USECS); + } + + /* A hack the reads out what was written so the next read from the receiver doesn't get it. */ + /* TODO: Fix this!! */ + uint8_t dummy[size]; + read(uart, &dummy, size); + + return OK; +} + +int +hott_telemetry_thread_main(int argc, char *argv[]) +{ + warnx("starting"); + + thread_running = true; + + const char *device = DEFAULT_UART; + + /* read commandline arguments */ + for (int i = 0; i < argc && argv[i]; i++) { + if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--device") == 0) { //device set + if (argc > i + 1) { + device = argv[i + 1]; + + } else { + thread_running = false; + errx(1, "missing parameter to -d\n%s", commandline_usage); + } + } + } + + /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */ + const int uart = open_uart(device); + if (uart < 0) { + errx(1, "Failed opening HoTT UART, exiting."); + thread_running = false; + } + + init_sub_messages(); + + uint8_t buffer[MAX_MESSAGE_BUFFER_SIZE]; + size_t size = 0; + uint8_t id = 0; + bool connected = true; + while (!thread_should_exit) { + // Listen for and serve poll from the receiver. + if (recv_req_id(uart, &id) == OK) { + if (!connected) { + connected = true; + warnx("OK"); + } + + switch (id) { + case EAM_SENSOR_ID: + build_eam_response(buffer, &size); + break; + case GAM_SENSOR_ID: + build_gam_response(buffer, &size); + break; + case GPS_SENSOR_ID: + build_gps_response(buffer, &size); + break; + + default: + continue; // Not a module we support. + } + + send_data(uart, buffer, size); + } else { + connected = false; + warnx("syncing"); + } + } + + warnx("exiting"); + + close(uart); + + thread_running = false; + + return 0; +} + +/** + * Process command line arguments and start the daemon. + */ +int +hott_telemetry_main(int argc, char *argv[]) +{ + if (argc < 1) { + errx(1, "missing command\n%s", commandline_usage); + } + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + warnx("deamon already running"); + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn_cmd(daemon_name, + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 40, + 2048, + hott_telemetry_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + warnx("daemon is running"); + + } else { + warnx("daemon not started"); + } + + exit(0); + } + + errx(1, "unrecognized command\n%s", commandline_usage); +} diff --git a/src/drivers/hott/hott_telemetry/module.mk b/src/drivers/hott/hott_telemetry/module.mk index 7673d7e77..b19cbd14c 100644 --- a/src/drivers/hott/hott_telemetry/module.mk +++ b/src/drivers/hott/hott_telemetry/module.mk @@ -37,6 +37,6 @@ MODULE_COMMAND = hott_telemetry -SRCS = hott_telemetry.c \ - ../messages.c \ - ../comms.c +SRCS = hott_telemetry.cpp \ + ../messages.cpp \ + ../comms.cpp diff --git a/src/drivers/hott/messages.c b/src/drivers/hott/messages.c deleted file mode 100644 index 36d5fe942..000000000 --- a/src/drivers/hott/messages.c +++ /dev/null @@ -1,294 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Simon Wilks - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name PX4 nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 - * COPYRIGHT OWNER OR CONTRIBUTORS 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. - * - ****************************************************************************/ - -/** - * @file messages.c - * - */ - -#include "messages.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* The board is very roughly 5 deg warmer than the surrounding air */ -#define BOARD_TEMP_OFFSET_DEG 5 - -static int battery_sub = -1; -static int gps_sub = -1; -static int home_sub = -1; -static int sensor_sub = -1; -static int airspeed_sub = -1; -static int esc_sub = -1; - -//orb_advert_t _esc_pub; -//struct esc_s _esc; - - -static bool home_position_set = false; -static double home_lat = 0.0d; -static double home_lon = 0.0d; - -void -sub_messages_init(void) -{ - battery_sub = orb_subscribe(ORB_ID(battery_status)); - gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position)); - home_sub = orb_subscribe(ORB_ID(home_position)); - sensor_sub = orb_subscribe(ORB_ID(sensor_combined)); - airspeed_sub = orb_subscribe(ORB_ID(airspeed)); - //esc_sub = orb_subscribe(ORB_ID(esc)); -} - -void -pub_messages_init(void) -{ - //esc_pub = orb_subscribe(ORB_ID(esc)); -} - -void -build_gam_request(uint8_t *buffer, size_t *size) -{ - struct gam_module_poll_msg msg; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.mode = BINARY_MODE_REQUEST_ID; - msg.id = GAM_SENSOR_ID; - - memcpy(buffer, &msg, *size); -} - -void -publish_gam_message(const uint8_t *buffer) -{ - struct gam_module_msg msg; - size_t size = sizeof(msg); - memset(&msg, 0, size); - memcpy(&msg, buffer, size); - - /* announce the esc if needed, just publish else */ -// if (esc_pub > 0) { -// orb_publish(ORB_ID(airspeed), _esc_pub, &_esc); -// -// } else { -// _esc_pub = orb_advertise(ORB_ID(esc), &_esc); -// } - - // Publish it. - uint16_t rpm = ((msg.rpm_H << 8) | (msg.rpm_L & 0xff)) * 10; - //_esc.rpm = rpm; - uint8_t temp = msg.temperature2 + 20; - //_esc.temperature = temp; - float current = ((msg.current_H << 8) | (msg.current_L & 0xff)) * 0.1f; - //_esc.current = current; - printf("RPM: %d TEMP: %d A: %2.1f\n", rpm, temp, current); -} - -void -build_eam_response(uint8_t *buffer, size_t *size) -{ - /* get a local copy of the current sensor values */ - struct sensor_combined_s raw; - memset(&raw, 0, sizeof(raw)); - orb_copy(ORB_ID(sensor_combined), sensor_sub, &raw); - - /* get a local copy of the battery data */ - struct battery_status_s battery; - memset(&battery, 0, sizeof(battery)); - orb_copy(ORB_ID(battery_status), battery_sub, &battery); - - struct eam_module_msg msg; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.start = START_BYTE; - msg.eam_sensor_id = EAM_SENSOR_ID; - msg.sensor_text_id = EAM_SENSOR_TEXT_ID; - - msg.temperature1 = (uint8_t)(raw.baro_temp_celcius - 20); - msg.temperature2 = msg.temperature1 - BOARD_TEMP_OFFSET_DEG; - - msg.main_voltage_L = (uint8_t)(battery.voltage_v * 10); - - uint16_t alt = (uint16_t)(raw.baro_alt_meter + 500); - msg.altitude_L = (uint8_t)alt & 0xff; - msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; - - /* get a local copy of the airspeed data */ - struct airspeed_s airspeed; - memset(&airspeed, 0, sizeof(airspeed)); - orb_copy(ORB_ID(airspeed), airspeed_sub, &airspeed); - - uint16_t speed = (uint16_t)(airspeed.indicated_airspeed_m_s * 3.6f); - msg.speed_L = (uint8_t)speed & 0xff; - msg.speed_H = (uint8_t)(speed >> 8) & 0xff; - - msg.stop = STOP_BYTE; - memcpy(buffer, &msg, *size); -} - -void -build_gps_response(uint8_t *buffer, size_t *size) -{ - /* get a local copy of the current sensor values */ - struct sensor_combined_s raw; - memset(&raw, 0, sizeof(raw)); - orb_copy(ORB_ID(sensor_combined), sensor_sub, &raw); - - /* get a local copy of the battery data */ - struct vehicle_gps_position_s gps; - memset(&gps, 0, sizeof(gps)); - orb_copy(ORB_ID(vehicle_gps_position), gps_sub, &gps); - - struct gps_module_msg msg = { 0 }; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.start = START_BYTE; - msg.sensor_id = GPS_SENSOR_ID; - msg.sensor_text_id = GPS_SENSOR_TEXT_ID; - - msg.gps_num_sat = gps.satellites_visible; - - /* The GPS fix type: 0 = none, 2 = 2D, 3 = 3D */ - msg.gps_fix_char = (uint8_t)(gps.fix_type + 48); - msg.gps_fix = (uint8_t)(gps.fix_type + 48); - - /* No point collecting more data if we don't have a 3D fix yet */ - if (gps.fix_type > 2) { - /* Current flight direction */ - msg.flight_direction = (uint8_t)(gps.cog_rad * M_RAD_TO_DEG_F); - - /* GPS speed */ - uint16_t speed = (uint16_t)(gps.vel_m_s * 3.6); - msg.gps_speed_L = (uint8_t)speed & 0xff; - msg.gps_speed_H = (uint8_t)(speed >> 8) & 0xff; - - /* Get latitude in degrees, minutes and seconds */ - double lat = ((double)(gps.lat))*1e-7d; - - /* Set the N or S specifier */ - msg.latitude_ns = 0; - if (lat < 0) { - msg.latitude_ns = 1; - lat = abs(lat); - } - - int deg; - int min; - int sec; - convert_to_degrees_minutes_seconds(lat, °, &min, &sec); - - uint16_t lat_min = (uint16_t)(deg * 100 + min); - msg.latitude_min_L = (uint8_t)lat_min & 0xff; - msg.latitude_min_H = (uint8_t)(lat_min >> 8) & 0xff; - uint16_t lat_sec = (uint16_t)(sec); - msg.latitude_sec_L = (uint8_t)lat_sec & 0xff; - msg.latitude_sec_H = (uint8_t)(lat_sec >> 8) & 0xff; - - /* Get longitude in degrees, minutes and seconds */ - double lon = ((double)(gps.lon))*1e-7d; - - /* Set the E or W specifier */ - msg.longitude_ew = 0; - if (lon < 0) { - msg.longitude_ew = 1; - lon = abs(lon); - } - - convert_to_degrees_minutes_seconds(lon, °, &min, &sec); - - uint16_t lon_min = (uint16_t)(deg * 100 + min); - msg.longitude_min_L = (uint8_t)lon_min & 0xff; - msg.longitude_min_H = (uint8_t)(lon_min >> 8) & 0xff; - uint16_t lon_sec = (uint16_t)(sec); - msg.longitude_sec_L = (uint8_t)lon_sec & 0xff; - msg.longitude_sec_H = (uint8_t)(lon_sec >> 8) & 0xff; - - /* Altitude */ - uint16_t alt = (uint16_t)(gps.alt*1e-3 + 500.0f); - msg.altitude_L = (uint8_t)alt & 0xff; - msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; - - /* Get any (and probably only ever one) home_sub postion report */ - bool updated; - orb_check(home_sub, &updated); - if (updated) { - /* get a local copy of the home position data */ - struct home_position_s home; - memset(&home, 0, sizeof(home)); - orb_copy(ORB_ID(home_position), home_sub, &home); - - home_lat = ((double)(home.lat))*1e-7d; - home_lon = ((double)(home.lon))*1e-7d; - home_position_set = true; - } - - /* Distance from home */ - if (home_position_set) { - uint16_t dist = (uint16_t)get_distance_to_next_waypoint(home_lat, home_lon, lat, lon); - - msg.distance_L = (uint8_t)dist & 0xff; - msg.distance_H = (uint8_t)(dist >> 8) & 0xff; - - /* Direction back to home */ - uint16_t bearing = (uint16_t)(get_bearing_to_next_waypoint(home_lat, home_lon, lat, lon) * M_RAD_TO_DEG_F); - msg.home_direction = (uint8_t)bearing >> 1; - } - } - - msg.stop = STOP_BYTE; - memcpy(buffer, &msg, *size); -} - -void -convert_to_degrees_minutes_seconds(double val, int *deg, int *min, int *sec) -{ - *deg = (int)val; - - double delta = val - *deg; - const double min_d = delta * 60.0d; - *min = (int)min_d; - delta = min_d - *min; - *sec = (int)(delta * 10000.0d); -} diff --git a/src/drivers/hott/messages.cpp b/src/drivers/hott/messages.cpp new file mode 100644 index 000000000..004322a2d --- /dev/null +++ b/src/drivers/hott/messages.cpp @@ -0,0 +1,332 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Simon Wilks + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 + * COPYRIGHT OWNER OR CONTRIBUTORS 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. + * + ****************************************************************************/ + +/** + * @file messages.c + * + */ + +#include "messages.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* The board is very roughly 5 deg warmer than the surrounding air */ +#define BOARD_TEMP_OFFSET_DEG 5 + +static int _battery_sub = -1; +static int _gps_sub = -1; +static int _home_sub = -1; +static int _sensor_sub = -1; +static int _airspeed_sub = -1; +static int _esc_sub = -1; + +orb_advert_t _esc_pub; +struct esc_status_s _esc; + + +static bool _home_position_set = false; +static double _home_lat = 0.0d; +static double _home_lon = 0.0d; + +void +init_sub_messages(void) +{ + _battery_sub = orb_subscribe(ORB_ID(battery_status)); + _gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position)); + _home_sub = orb_subscribe(ORB_ID(home_position)); + _sensor_sub = orb_subscribe(ORB_ID(sensor_combined)); + _airspeed_sub = orb_subscribe(ORB_ID(airspeed)); + _esc_sub = orb_subscribe(ORB_ID(esc_status)); +} + +void +init_pub_messages(void) +{ + memset(&_esc, 0, sizeof(_esc)); + _esc_pub = orb_advertise(ORB_ID(esc_status), &_esc); +} + +void +build_gam_request(uint8_t *buffer, size_t *size) +{ + struct gam_module_poll_msg msg; + *size = sizeof(msg); + memset(&msg, 0, *size); + + msg.mode = BINARY_MODE_REQUEST_ID; + msg.id = GAM_SENSOR_ID; + + memcpy(buffer, &msg, *size); +} + +void +publish_gam_message(const uint8_t *buffer) +{ + struct gam_module_msg msg; + size_t size = sizeof(msg); + memset(&msg, 0, size); + memcpy(&msg, buffer, size); + + /* announce the esc if needed, just publish else */ + if (_esc_pub > 0) { + orb_publish(ORB_ID(esc_status), _esc_pub, &_esc); + } else { + _esc_pub = orb_advertise(ORB_ID(esc_status), &_esc); + } + + // Publish it. + _esc.esc_count = 1; + _esc.esc_connectiontype = ESC_CONNECTION_TYPE_PPM; + + _esc.esc[0].esc_vendor = ESC_VENDOR_GRAUPNER_HOTT; + _esc.esc[0].esc_rpm = (uint16_t)((msg.rpm_H << 8) | (msg.rpm_L & 0xff)) * 10; + _esc.esc[0].esc_temperature = msg.temperature1 - 20; + _esc.esc[0].esc_voltage = (uint16_t)((msg.main_voltage_H << 8) | (msg.main_voltage_L & 0xff)); + _esc.esc[0].esc_current = (uint16_t)((msg.current_H << 8) | (msg.current_L & 0xff)); + //printf("T: %d\n", _esc.esc[0].esc_temperature); +} + +void +build_eam_response(uint8_t *buffer, size_t *size) +{ + /* get a local copy of the current sensor values */ + struct sensor_combined_s raw; + memset(&raw, 0, sizeof(raw)); + orb_copy(ORB_ID(sensor_combined), _sensor_sub, &raw); + + /* get a local copy of the battery data */ + struct battery_status_s battery; + memset(&battery, 0, sizeof(battery)); + orb_copy(ORB_ID(battery_status), _battery_sub, &battery); + + struct eam_module_msg msg; + *size = sizeof(msg); + memset(&msg, 0, *size); + + msg.start = START_BYTE; + msg.eam_sensor_id = EAM_SENSOR_ID; + msg.sensor_text_id = EAM_SENSOR_TEXT_ID; + + msg.temperature1 = (uint8_t)(raw.baro_temp_celcius + 20); + msg.temperature2 = msg.temperature1 - BOARD_TEMP_OFFSET_DEG; + + msg.main_voltage_L = (uint8_t)(battery.voltage_v * 10); + + uint16_t alt = (uint16_t)(raw.baro_alt_meter + 500); + msg.altitude_L = (uint8_t)alt & 0xff; + msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; + + /* get a local copy of the airspeed data */ + struct airspeed_s airspeed; + memset(&airspeed, 0, sizeof(airspeed)); + orb_copy(ORB_ID(airspeed), _airspeed_sub, &airspeed); + + uint16_t speed = (uint16_t)(airspeed.indicated_airspeed_m_s * 3.6f); + msg.speed_L = (uint8_t)speed & 0xff; + msg.speed_H = (uint8_t)(speed >> 8) & 0xff; + + msg.stop = STOP_BYTE; + memcpy(buffer, &msg, *size); +} + +void +build_gam_response(uint8_t *buffer, size_t *size) +{ + /* get a local copy of the ESC Status values */ + struct esc_status_s esc; + memset(&esc, 0, sizeof(esc)); + orb_copy(ORB_ID(esc_status), _esc_sub, &esc); + + struct gam_module_msg msg; + *size = sizeof(msg); + memset(&msg, 0, *size); + + msg.start = START_BYTE; + msg.gam_sensor_id = GAM_SENSOR_ID; + msg.sensor_text_id = GAM_SENSOR_TEXT_ID; + + msg.temperature1 = (uint8_t)(esc.esc[0].esc_temperature + 20); + msg.temperature2 = 20; // 0 deg. C. + + uint16_t voltage = (uint16_t)(esc.esc[0].esc_voltage); + msg.main_voltage_L = (uint8_t)voltage & 0xff; + msg.main_voltage_H = (uint8_t)(voltage >> 8) & 0xff; + + uint16_t current = (uint16_t)(esc.esc[0].esc_current); + msg.current_L = (uint8_t)current & 0xff; + msg.current_H = (uint8_t)(current >> 8) & 0xff; + + uint16_t rpm = (uint16_t)(esc.esc[0].esc_rpm * 0.1f); + msg.rpm_L = (uint8_t)rpm & 0xff; + msg.rpm_H = (uint8_t)(rpm >> 8) & 0xff; + + msg.stop = STOP_BYTE; + memcpy(buffer, &msg, *size); +} + +void +build_gps_response(uint8_t *buffer, size_t *size) +{ + /* get a local copy of the current sensor values */ + struct sensor_combined_s raw; + memset(&raw, 0, sizeof(raw)); + orb_copy(ORB_ID(sensor_combined), _sensor_sub, &raw); + + /* get a local copy of the battery data */ + struct vehicle_gps_position_s gps; + memset(&gps, 0, sizeof(gps)); + orb_copy(ORB_ID(vehicle_gps_position), _gps_sub, &gps); + + struct gps_module_msg msg; + *size = sizeof(msg); + memset(&msg, 0, *size); + + msg.start = START_BYTE; + msg.sensor_id = GPS_SENSOR_ID; + msg.sensor_text_id = GPS_SENSOR_TEXT_ID; + + msg.gps_num_sat = gps.satellites_visible; + + /* The GPS fix type: 0 = none, 2 = 2D, 3 = 3D */ + msg.gps_fix_char = (uint8_t)(gps.fix_type + 48); + msg.gps_fix = (uint8_t)(gps.fix_type + 48); + + /* No point collecting more data if we don't have a 3D fix yet */ + if (gps.fix_type > 2) { + /* Current flight direction */ + msg.flight_direction = (uint8_t)(gps.cog_rad * M_RAD_TO_DEG_F); + + /* GPS speed */ + uint16_t speed = (uint16_t)(gps.vel_m_s * 3.6f); + msg.gps_speed_L = (uint8_t)speed & 0xff; + msg.gps_speed_H = (uint8_t)(speed >> 8) & 0xff; + + /* Get latitude in degrees, minutes and seconds */ + double lat = ((double)(gps.lat))*1e-7d; + + /* Set the N or S specifier */ + msg.latitude_ns = 0; + if (lat < 0) { + msg.latitude_ns = 1; + lat = abs(lat); + } + + int deg; + int min; + int sec; + convert_to_degrees_minutes_seconds(lat, °, &min, &sec); + + uint16_t lat_min = (uint16_t)(deg * 100 + min); + msg.latitude_min_L = (uint8_t)lat_min & 0xff; + msg.latitude_min_H = (uint8_t)(lat_min >> 8) & 0xff; + uint16_t lat_sec = (uint16_t)(sec); + msg.latitude_sec_L = (uint8_t)lat_sec & 0xff; + msg.latitude_sec_H = (uint8_t)(lat_sec >> 8) & 0xff; + + /* Get longitude in degrees, minutes and seconds */ + double lon = ((double)(gps.lon))*1e-7d; + + /* Set the E or W specifier */ + msg.longitude_ew = 0; + if (lon < 0) { + msg.longitude_ew = 1; + lon = abs(lon); + } + + convert_to_degrees_minutes_seconds(lon, °, &min, &sec); + + uint16_t lon_min = (uint16_t)(deg * 100 + min); + msg.longitude_min_L = (uint8_t)lon_min & 0xff; + msg.longitude_min_H = (uint8_t)(lon_min >> 8) & 0xff; + uint16_t lon_sec = (uint16_t)(sec); + msg.longitude_sec_L = (uint8_t)lon_sec & 0xff; + msg.longitude_sec_H = (uint8_t)(lon_sec >> 8) & 0xff; + + /* Altitude */ + uint16_t alt = (uint16_t)(gps.alt*1e-3f + 500.0f); + msg.altitude_L = (uint8_t)alt & 0xff; + msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; + + /* Get any (and probably only ever one) _home_sub postion report */ + bool updated; + orb_check(_home_sub, &updated); + if (updated) { + /* get a local copy of the home position data */ + struct home_position_s home; + memset(&home, 0, sizeof(home)); + orb_copy(ORB_ID(home_position), _home_sub, &home); + + _home_lat = ((double)(home.lat))*1e-7d; + _home_lon = ((double)(home.lon))*1e-7d; + _home_position_set = true; + } + + /* Distance from home */ + if (_home_position_set) { + uint16_t dist = (uint16_t)get_distance_to_next_waypoint(_home_lat, _home_lon, lat, lon); + + msg.distance_L = (uint8_t)dist & 0xff; + msg.distance_H = (uint8_t)(dist >> 8) & 0xff; + + /* Direction back to home */ + uint16_t bearing = (uint16_t)(get_bearing_to_next_waypoint(_home_lat, _home_lon, lat, lon) * M_RAD_TO_DEG_F); + msg.home_direction = (uint8_t)bearing >> 1; + } + } + + msg.stop = STOP_BYTE; + memcpy(buffer, &msg, *size); +} + +void +convert_to_degrees_minutes_seconds(double val, int *deg, int *min, int *sec) +{ + *deg = (int)val; + + double delta = val - *deg; + const double min_d = delta * 60.0d; + *min = (int)min_d; + delta = min_d - *min; + *sec = (int)(delta * 10000.0d); +} diff --git a/src/drivers/hott/messages.h b/src/drivers/hott/messages.h index dce90f273..451bee91c 100644 --- a/src/drivers/hott/messages.h +++ b/src/drivers/hott/messages.h @@ -119,23 +119,16 @@ struct eam_module_msg { uint8_t checksum; /**< Lower 8-bits of all bytes summed. */ }; -/** - * The maximum buffer size required to store an Electric Air Module message. - */ -#define EAM_MESSAGE_BUFFER_SIZE sizeof(union { \ - struct eam_module_msg eam; \ -}) - /* General Air Module (GAM) constants. */ #define GAM_SENSOR_ID 0x8d #define GAM_SENSOR_TEXT_ID 0xd0 struct gam_module_msg { - uint8_t start_byte; // start byte constant value 0x7c + uint8_t start; // start byte constant value 0x7c uint8_t gam_sensor_id; // EAM sensort id. constat value 0x8d uint8_t warning_beeps; // 1=A 2=B ... 0x1a=Z 0 = no alarm - uint8_t sensor_id; // constant value 0xd0 + uint8_t sensor_text_id; // constant value 0xd0 uint8_t alarm_invers1; // alarm bitmask. Value is displayed inverted uint8_t alarm_invers2; // alarm bitmask. Value is displayed inverted uint8_t cell1; // cell 1 voltage lower value. 0.02V steps, 124=2.48V @@ -180,14 +173,6 @@ struct gam_module_msg { uint8_t checksum; // checksum }; -/** - * The maximum buffer size required to store a General Air Module message. - */ -#define GAM_MESSAGE_BUFFER_SIZE sizeof(union { \ - struct gam_module_msg gam; \ -}) - - /* GPS sensor constants. */ #define GPS_SENSOR_ID 0x8a #define GPS_SENSOR_TEXT_ID 0xa0 @@ -247,20 +232,15 @@ struct gps_module_msg { uint8_t checksum; /**< Byte 45: Parity Byte */ }; -/** - * The maximum buffer size required to store a HoTT message. - */ -#define GPS_MESSAGE_BUFFER_SIZE sizeof(union { \ - struct gps_module_msg gps; \ -}) - -#define MESSAGE_BUFFER_SIZE GPS_MESSAGE_BUFFER_SIZE +// The maximum size of a message. +#define MAX_MESSAGE_BUFFER_SIZE 45 -void sub_messages_init(void); -void pub_messages_init(void); +void init_sub_messages(void); +void init_pub_messages(void); void build_gam_request(uint8_t *buffer, size_t *size); void publish_gam_message(const uint8_t *buffer); void build_eam_response(uint8_t *buffer, size_t *size); +void build_gam_response(uint8_t *buffer, size_t *size); void build_gps_response(uint8_t *buffer, size_t *size); float _get_distance_to_next_waypoint(double lat_now, double lon_now, double lat_next, double lon_next); void convert_to_degrees_minutes_seconds(double lat, int *deg, int *min, int *sec); -- cgit v1.2.3