diff options
43 files changed, 3448 insertions, 1345 deletions
diff --git a/Debug/ARMv7M b/Debug/ARMv7M new file mode 100644 index 000000000..3d96da682 --- /dev/null +++ b/Debug/ARMv7M @@ -0,0 +1,152 @@ +# +# Assorted ARMv7M macros +# + +echo Loading ARMv7M GDB macros. Use 'help armv7m' for more information.\n + +define armv7m + echo Use 'help armv7m' for more information.\n +end + +document armv7m +. Various macros for working with the ARMv7M family of processors. +. +. vecstate +. Print information about the current exception handling state. +. +. Use 'help <macro>' for more specific help. +end + + +define vecstate + set $icsr = *(uint32_t *)0xe000ed04 + set $vect = $icsr & 0x1ff + set $pend = ($icsr & 0x1ff000) >> 12 + set $shcsr = *(uint32_t *)0xe000ed24 + set $cfsr = *(uint32_t *)0xe000ed28 + set $mmfsr = $cfsr & 0xff + set $bfsr = ($cfsr >> 8) & 0xff + set $ufsr = ($cfsr >> 16) & 0xffff + set $hfsr = *(uint32_t *)0xe000ed2c + set $bfar = *(uint32_t *)0xe000ed38 + set $mmfar = *(uint32_t *)0xe000ed34 + + # XXX Currently, rather than look at $vect, we just decode the + # fault status registers directly. + + if $hfsr != 0 + printf "HardFault:" + if $hfsr & (1<<1) + printf " due to vector table read fault\n" + end + if $hfsr & (1<<30) + printf " forced ue to escalated or disabled configurable fault (see below)\n" + end + if $hfsr & (1<<31) + printf " due to an unexpected debug event\n" + end + end + if $mmfsr != 0 + printf "MemManage:" + if $mmfsr & (1<<5) + printf " during lazy FP state save" + end + if $mmfsr & (1<<4) + printf " during exception entry" + end + if $mmfsr & (1<<3) + printf " during exception return" + end + if $mmfsr & (1<<0) + printf " during data access" + end + if $mmfsr & (1<<0) + printf " during instruction prefetch" + end + if $mmfsr & (1<<7) + printf " accessing 0x%08x", $mmfar + end + printf "\n" + end + if $bfsr != 0 + printf "BusFault:" + if $bfsr & (1<<2) + printf " (imprecise)" + end + if $bfsr & (1<<1) + printf " (precise)" + end + if $bfsr & (1<<5) + printf " during lazy FP state save" + end + if $bfsr & (1<<4) + printf " during exception entry" + end + if $bfsr & (1<<3) + printf " during exception return" + end + if $bfsr & (1<<0) + printf " during instruction prefetch" + end + if $bfsr & (1<<7) + printf " accessing 0x%08x", $bfar + end + printf "\n" + end + if $ufsr != 0 + printf "UsageFault" + if $ufsr & (1<<9) + printf " due to divide-by-zero" + end + if $ufsr & (1<<8) + printf " due to unaligned memory access" + end + if $ufsr & (1<<3) + printf " due to access to disabled/absent coprocessor" + end + if $ufsr & (1<<2) + printf " due to a bad EXC_RETURN value" + end + if $ufsr & (1<<1) + printf " due to bad T or IT bits in EPSR" + end + if $ufsr & (1<<0) + printf " due to executing an undefined instruction" + end + printf "\n" + end + if ((uint32_t)$lr & 0xf0000000) == 0xf0000000 + if ($lr & 1) + set $frame_ptr = (uint32_t *)$msp + else + set $frame_ptr = (uint32_t *)$psp + end + printf " r0: %08x r1: %08x r2: %08x r3: %08x\n, $frame_ptr[0], $frame_ptr[1], $frame_ptr[2], $frame_ptr[3] + printf " r4: %08x r5: %08x r6: %08x r7: %08x\n", $r4, $r5, $r6, $r7 + printf " r8: %08x r9: %08x r10: %08x r11: %08x\n", $r8, $r9, $r10, $r11 + printf " r12: $08x lr: %08x pc: %08xx PSR: %08x\n", $frame_ptr[4], $frame_ptr[5], $frame_ptr[6], $frame_ptr[7] + + # Swap to the context of the faulting code and try to print a backtrace + set $saved_sp = $sp + if $lr & 0x10 + set $sp = $frame_ptr + (8 * 4) + else + set $sp = $frame_ptr + (26 * 4) + end + set $saved_lr = $lr + set $lr = $frame_ptr[5] + set $saved_pc = $pc + set $pc = $frame_ptr[6] + bt + set $sp = $saved_sp + set $lr = $saved_lr + set $pc = $saved_pc + else + printf "(not currently in exception state)\n" + end +end + +document vecstate +. vecstate +. Print information about the current exception handling state. +end @@ -2,6 +2,7 @@ # Various PX4-specific macros # source Debug/NuttX +source Debug/ARMv7M echo Loading PX4 GDB macros. Use 'help px4' for more information.\n diff --git a/Firmware.sublime-project b/Firmware.sublime-project index a316ae2fa..72bacee9f 100644 --- a/Firmware.sublime-project +++ b/Firmware.sublime-project @@ -7,6 +7,7 @@ [ "*.o", "*.a", + "*.d", ".built", ".context", ".depend", diff --git a/apps/commander/commander.c b/apps/commander/commander.c index 42ca10f55..8127dcb19 100644 --- a/apps/commander/commander.c +++ b/apps/commander/commander.c @@ -1265,6 +1265,8 @@ int commander_thread_main(int argc, char *argv[]) param_get(param_find("SYS_FAILSAVE_LL"), &failsafe_lowlevel_timeout_ms); param_t _param_sys_type = param_find("MAV_TYPE"); + param_t _param_system_id = param_find("MAV_SYS_ID"); + param_t _param_component_id = param_find("MAV_COMP_ID"); /* welcome user */ warnx("I am in command now!\n"); @@ -1450,6 +1452,7 @@ int commander_thread_main(int argc, char *argv[]) /* parameters changed */ orb_copy(ORB_ID(parameter_update), param_changed_sub, ¶m_changed); + /* update parameters */ if (!current_status.flag_system_armed) { if (param_get(_param_sys_type, &(current_status.system_type)) != OK) { @@ -1465,6 +1468,11 @@ int commander_thread_main(int argc, char *argv[]) } else { current_status.flag_external_manual_override_ok = true; } + + /* check and update system / component ID */ + param_get(_param_system_id, &(current_status.system_id)); + param_get(_param_component_id, &(current_status.component_id)); + } } diff --git a/apps/drivers/boards/px4io/px4io_internal.h b/apps/drivers/boards/px4io/px4io_internal.h index f77d237a7..44bb98513 100644 --- a/apps/drivers/boards/px4io/px4io_internal.h +++ b/apps/drivers/boards/px4io/px4io_internal.h @@ -74,8 +74,8 @@ #define GPIO_ACC_OC_DETECT (GPIO_INPUT|GPIO_CNF_INPULLUP|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN12) #define GPIO_SERVO_OC_DETECT (GPIO_INPUT|GPIO_CNF_INPULLUP|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN13) -#define GPIO_RELAY1_EN (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN13) -#define GPIO_RELAY2_EN (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN12) +#define GPIO_RELAY1_EN (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN12) +#define GPIO_RELAY2_EN (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN11) /* Analog inputs ********************************************************************/ diff --git a/apps/drivers/device/i2c.cpp b/apps/drivers/device/i2c.cpp index 474190d83..a416801eb 100644 --- a/apps/drivers/device/i2c.cpp +++ b/apps/drivers/device/i2c.cpp @@ -120,7 +120,7 @@ I2C::transfer(const uint8_t *send, unsigned send_len, uint8_t *recv, unsigned re struct i2c_msg_s msgv[2]; unsigned msgs; int ret; - unsigned tries = 0; + unsigned retry_count = 0; do { // debug("transfer out %p/%u in %p/%u", send, send_len, recv, recv_len); @@ -154,16 +154,51 @@ I2C::transfer(const uint8_t *send, unsigned send_len, uint8_t *recv, unsigned re I2C_SETFREQUENCY(_dev, _frequency); ret = I2C_TRANSFER(_dev, &msgv[0], msgs); + /* success */ if (ret == OK) break; - // reset the I2C bus to unwedge on error - up_i2creset(_dev); + /* if we have already retried once, or we are going to give up, then reset the bus */ + if ((retry_count >= 1) || (retry_count >= _retries)) + up_i2creset(_dev); - } while (tries++ < _retries); + } while (retry_count++ < _retries); return ret; } +int +I2C::transfer(i2c_msg_s *msgv, unsigned msgs) +{ + int ret; + unsigned retry_count = 0; + + /* force the device address into the message vector */ + for (unsigned i = 0; i < msgs; i++) + msgv[i].addr = _address; + + + do { + /* + * I2C architecture means there is an unavoidable race here + * if there are any devices on the bus with a different frequency + * preference. Really, this is pointless. + */ + I2C_SETFREQUENCY(_dev, _frequency); + ret = I2C_TRANSFER(_dev, msgv, msgs); + + /* success */ + if (ret == OK) + break; + + /* if we have already retried once, or we are going to give up, then reset the bus */ + if ((retry_count >= 1) || (retry_count >= _retries)) + up_i2creset(_dev); + + } while (retry_count++ < _retries); + + return ret; +} + } // namespace device
\ No newline at end of file diff --git a/apps/drivers/device/i2c.h b/apps/drivers/device/i2c.h index 4d630b8a8..66c34dd7c 100644 --- a/apps/drivers/device/i2c.h +++ b/apps/drivers/device/i2c.h @@ -101,6 +101,16 @@ protected: uint8_t *recv, unsigned recv_len); /** + * Perform a multi-part I2C transaction to the device. + * + * @param msgv An I2C message vector. + * @param msgs The number of entries in the message vector. + * @return OK if the transfer was successful, -errno + * otherwise. + */ + int transfer(i2c_msg_s *msgv, unsigned msgs); + + /** * Change the bus address. * * Most often useful during probe() when the driver is testing diff --git a/apps/drivers/drv_hrt.h b/apps/drivers/drv_hrt.h index 3b493a81a..8a99eeca7 100644 --- a/apps/drivers/drv_hrt.h +++ b/apps/drivers/drv_hrt.h @@ -92,6 +92,22 @@ __EXPORT extern hrt_abstime ts_to_abstime(struct timespec *ts); __EXPORT extern void abstime_to_ts(struct timespec *ts, hrt_abstime abstime); /* + * Compute the delta between a timestamp taken in the past + * and now. + * + * This function is safe to use even if the timestamp is updated + * by an interrupt during execution. + */ +__EXPORT extern hrt_abstime hrt_elapsed_time(const volatile hrt_abstime *then); + +/* + * Store the absolute time in an interrupt-safe fashion. + * + * This function ensures that the timestamp cannot be seen half-written by an interrupt handler. + */ +__EXPORT extern hrt_abstime hrt_store_absolute_time(volatile hrt_abstime *now); + +/* * Call callout(arg) after delay has elapsed. * * If callout is NULL, this can be used to implement a timeout by testing the call diff --git a/apps/drivers/drv_pwm_output.h b/apps/drivers/drv_pwm_output.h index c110cd5cb..f3f753ebe 100644 --- a/apps/drivers/drv_pwm_output.h +++ b/apps/drivers/drv_pwm_output.h @@ -77,9 +77,6 @@ typedef uint16_t servo_position_t; * device. */ struct pwm_output_values { - /** desired servo update rate in Hz */ - uint32_t update_rate; - /** desired pulse widths for each of the supported channels */ servo_position_t values[PWM_OUTPUT_MAX_CHANNELS]; }; @@ -106,6 +103,18 @@ ORB_DECLARE(output_pwm); /** set update rate in Hz */ #define PWM_SERVO_SET_UPDATE_RATE _IOC(_PWM_SERVO_BASE, 2) +/** get the number of servos in *(unsigned *)arg */ +#define PWM_SERVO_GET_COUNT _IOC(_PWM_SERVO_BASE, 3) + +/** set debug level for servo IO */ +#define PWM_SERVO_SET_DEBUG _IOC(_PWM_SERVO_BASE, 4) + +/** enable in-air restart */ +#define PWM_SERVO_INAIR_RESTART_ENABLE _IOC(_PWM_SERVO_BASE, 5) + +/** disable in-air restart */ +#define PWM_SERVO_INAIR_RESTART_DISABLE _IOC(_PWM_SERVO_BASE, 6) + /** set a single servo to a specific value */ #define PWM_SERVO_SET(_servo) _IOC(_PWM_SERVO_BASE, 0x20 + _servo) diff --git a/apps/drivers/drv_rc_input.h b/apps/drivers/drv_rc_input.h index 927406108..4decc324e 100644 --- a/apps/drivers/drv_rc_input.h +++ b/apps/drivers/drv_rc_input.h @@ -100,4 +100,11 @@ struct rc_input_values { */ ORB_DECLARE(input_rc); +#define _RC_INPUT_BASE 0x2b00 + +/** Fetch R/C input values into (rc_input_values *)arg */ + +#define RC_INPUT_GET _IOC(_RC_INPUT_BASE, 0) + + #endif /* _DRV_RC_INPUT_H */ diff --git a/apps/drivers/hmc5883/hmc5883.cpp b/apps/drivers/hmc5883/hmc5883.cpp index 3734d7755..4a201b98c 100644 --- a/apps/drivers/hmc5883/hmc5883.cpp +++ b/apps/drivers/hmc5883/hmc5883.cpp @@ -465,7 +465,7 @@ HMC5883::probe() read_reg(ADDR_ID_C, data[2])) debug("read_reg fail"); - _retries = 1; + _retries = 2; if ((data[0] != ID_A_WHO_AM_I) || (data[1] != ID_B_WHO_AM_I) || diff --git a/apps/drivers/ms5611/ms5611.cpp b/apps/drivers/ms5611/ms5611.cpp index b8845aaf1..44014d969 100644 --- a/apps/drivers/ms5611/ms5611.cpp +++ b/apps/drivers/ms5611/ms5611.cpp @@ -144,6 +144,7 @@ private: orb_advert_t _baro_topic; perf_counter_t _sample_perf; + perf_counter_t _measure_perf; perf_counter_t _comms_errors; perf_counter_t _buffer_overflows; @@ -162,12 +163,12 @@ private: * @note This function is called at open and error time. It might make sense * to make it more aggressive about resetting the bus in case of errors. */ - void start(); + void start_cycle(); /** * Stop the automatic measurement state machine. */ - void stop(); + void stop_cycle(); /** * Perform a poll cycle; collect from the previous measurement @@ -274,6 +275,7 @@ MS5611::MS5611(int bus) : _msl_pressure(101325), _baro_topic(-1), _sample_perf(perf_alloc(PC_ELAPSED, "ms5611_read")), + _measure_perf(perf_alloc(PC_ELAPSED, "ms5611_measure")), _comms_errors(perf_alloc(PC_COUNT, "ms5611_comms_errors")), _buffer_overflows(perf_alloc(PC_COUNT, "ms5611_buffer_overflows")) { @@ -287,7 +289,7 @@ MS5611::MS5611(int bus) : MS5611::~MS5611() { /* make sure we are truly inactive */ - stop(); + stop_cycle(); /* free any existing reports */ if (_reports != nullptr) @@ -331,7 +333,11 @@ MS5611::probe() if ((OK == probe_address(MS5611_ADDRESS_1)) || (OK == probe_address(MS5611_ADDRESS_2))) { - _retries = 1; + /* + * Disable retries; we may enable them selectively in some cases, + * but the device gets confused if we retry some of the commands. + */ + _retries = 0; return OK; } @@ -436,7 +442,7 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg) /* switching to manual polling */ case SENSOR_POLLRATE_MANUAL: - stop(); + stop_cycle(); _measure_ticks = 0; return OK; @@ -458,7 +464,7 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg) /* if we need to start the poll state machine, do it */ if (want_start) - start(); + start_cycle(); return OK; } @@ -480,7 +486,7 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg) /* if we need to start the poll state machine, do it */ if (want_start) - start(); + start_cycle(); return OK; } @@ -508,11 +514,11 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg) return -ENOMEM; /* reset the measurement state machine with the new buffer, free the old */ - stop(); + stop_cycle(); delete[] _reports; _num_reports = arg; _reports = buf; - start(); + start_cycle(); return OK; } @@ -545,7 +551,7 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg) } void -MS5611::start() +MS5611::start_cycle() { /* reset the report ring and state machine */ @@ -558,7 +564,7 @@ MS5611::start() } void -MS5611::stop() +MS5611::stop_cycle() { work_cancel(HPWORK, &_work); } @@ -574,15 +580,25 @@ MS5611::cycle_trampoline(void *arg) void MS5611::cycle() { + int ret; /* collection phase? */ if (_collect_phase) { /* perform collection */ - if (OK != collect()) { - log("collection error"); + ret = collect(); + if (ret != OK) { + if (ret == -6) { + /* + * The ms5611 seems to regularly fail to respond to + * its address; this happens often enough that we'd rather not + * spam the console with the message. + */ + } else { + log("collection error %d", ret); + } /* reset the collection state machine and try again */ - start(); + start_cycle(); return; } @@ -609,8 +625,13 @@ MS5611::cycle() } /* measurement phase */ - if (OK != measure()) - log("measure error"); + ret = measure(); + if (ret != OK) { + log("measure error %d", ret); + /* reset the collection state machine and try again */ + start_cycle(); + return; + } /* next phase is collection */ _collect_phase = true; @@ -628,6 +649,8 @@ MS5611::measure() { int ret; + perf_begin(_measure_perf); + /* * In phase zero, request temperature; in other phases, request pressure. */ @@ -635,18 +658,25 @@ MS5611::measure() /* * Send the command to begin measuring. + * + * Disable retries on this command; we can't know whether failure + * means the device did or did not see the write. */ + _retries = 0; ret = transfer(&cmd_data, 1, nullptr, 0); if (OK != ret) perf_count(_comms_errors); + perf_end(_measure_perf); + return ret; } int MS5611::collect() { + int ret; uint8_t cmd; uint8_t data[3]; union { @@ -662,9 +692,11 @@ MS5611::collect() /* this should be fairly close to the end of the conversion, so the best approximation of the time */ _reports[_next_report].timestamp = hrt_absolute_time(); - if (OK != transfer(&cmd, 1, &data[0], 3)) { + ret = transfer(&cmd, 1, &data[0], 3); + if (ret != OK) { perf_count(_comms_errors); - return -EIO; + perf_end(_sample_perf); + return ret; } /* fetch the raw value */ diff --git a/apps/drivers/px4fmu/fmu.cpp b/apps/drivers/px4fmu/fmu.cpp index 430d18c6d..c29fe0ba3 100644 --- a/apps/drivers/px4fmu/fmu.cpp +++ b/apps/drivers/px4fmu/fmu.cpp @@ -64,12 +64,14 @@ #include <systemlib/err.h> #include <systemlib/mixer/mixer.h> #include <drivers/drv_mixer.h> +#include <drivers/drv_rc_input.h> #include <uORB/topics/actuator_controls.h> #include <uORB/topics/actuator_controls_effective.h> #include <uORB/topics/actuator_outputs.h> #include <systemlib/err.h> +#include <systemlib/ppm_decode.h> class PX4FMU : public device::CDev { @@ -83,6 +85,7 @@ public: ~PX4FMU(); virtual int ioctl(file *filp, int cmd, unsigned long arg); + virtual ssize_t write(file *filp, const char *buffer, size_t len); virtual int init(); @@ -338,6 +341,13 @@ PX4FMU::task_main() unsigned num_outputs = (_mode == MODE_2PWM) ? 2 : 4; + // rc input, published to ORB + struct rc_input_values rc_in; + orb_advert_t to_input_rc = 0; + + memset(&rc_in, 0, sizeof(rc_in)); + rc_in.input_source = RC_INPUT_SOURCE_PX4FMU_PPM; + log("starting"); /* loop until killed */ @@ -363,8 +373,9 @@ PX4FMU::task_main() _current_update_rate = _update_rate; } - /* sleep waiting for data, but no more than a second */ - int ret = ::poll(&fds[0], 2, 1000); + /* sleep waiting for data, stopping to check for PPM + * input at 100Hz */ + int ret = ::poll(&fds[0], 2, 10); /* this would be bad... */ if (ret < 0) { @@ -429,6 +440,26 @@ PX4FMU::task_main() /* update PWM servo armed status if armed and not locked down */ up_pwm_servo_arm(aa.armed && !aa.lockdown); } + + // see if we have new PPM input data + if (ppm_last_valid_decode != rc_in.timestamp) { + // we have a new PPM frame. Publish it. + rc_in.channel_count = ppm_decoded_channels; + if (rc_in.channel_count > RC_INPUT_MAX_CHANNELS) { + rc_in.channel_count = RC_INPUT_MAX_CHANNELS; + } + for (uint8_t i=0; i<rc_in.channel_count; i++) { + rc_in.values[i] = ppm_buffer[i]; + } + rc_in.timestamp = ppm_last_valid_decode; + + /* lazily advertise on first publication */ + if (to_input_rc == 0) { + to_input_rc = orb_advertise(ORB_ID(input_rc), &rc_in); + } else { + orb_publish(ORB_ID(input_rc), to_input_rc, &rc_in); + } + } } ::close(_t_actuators); @@ -621,6 +652,30 @@ PX4FMU::pwm_ioctl(file *filp, int cmd, unsigned long arg) return ret; } +/* + this implements PWM output via a write() method, for compatibility + with px4io + */ +ssize_t +PX4FMU::write(file *filp, const char *buffer, size_t len) +{ + unsigned count = len / 2; + uint16_t values[4]; + + if (count > 4) { + // we only have 4 PWM outputs on the FMU + count = 4; + } + + // allow for misaligned values + memcpy(values, buffer, count*2); + + for (uint8_t i=0; i<count; i++) { + up_pwm_servo_set(i, values[i]); + } + return count * 2; +} + void PX4FMU::gpio_reset(void) { diff --git a/apps/drivers/px4io/px4io.cpp b/apps/drivers/px4io/px4io.cpp index 2c2c236ca..2f5d4cf89 100644 --- a/apps/drivers/px4io/px4io.cpp +++ b/apps/drivers/px4io/px4io.cpp @@ -1,6 +1,6 @@ /**************************************************************************** * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Copyright (C) 2012,2013 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 @@ -35,8 +35,7 @@ * @file px4io.cpp * Driver for the PX4IO board. * - * PX4IO is connected via serial (or possibly some other interface at a later - * point). + * PX4IO is connected via I2C. */ #include <nuttx/config.h> @@ -53,13 +52,13 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> -#include <termios.h> #include <fcntl.h> #include <math.h> #include <arch/board/board.h> #include <drivers/device/device.h> +#include <drivers/device/i2c.h> #include <drivers/drv_rc_input.h> #include <drivers/drv_pwm_output.h> #include <drivers/drv_gpio.h> @@ -68,7 +67,6 @@ #include <systemlib/mixer/mixer.h> #include <systemlib/perf_counter.h> -#include <systemlib/hx_stream.h> #include <systemlib/err.h> #include <systemlib/systemlib.h> #include <systemlib/scheduling_priorities.h> @@ -78,14 +76,16 @@ #include <uORB/topics/actuator_controls_effective.h> #include <uORB/topics/actuator_outputs.h> #include <uORB/topics/vehicle_status.h> +#include <uORB/topics/vehicle_command.h> #include <uORB/topics/rc_channels.h> #include <uORB/topics/battery_status.h> +#include <uORB/topics/parameter_update.h> #include <px4io/protocol.h> #include "uploader.h" -class PX4IO : public device::CDev +class PX4IO : public device::I2C { public: PX4IO(); @@ -94,59 +94,45 @@ public: virtual int init(); virtual int ioctl(file *filp, int cmd, unsigned long arg); + virtual ssize_t write(file *filp, const char *buffer, size_t len); - /** - * Set the PWM via serial update rate - * @warning this directly affects CPU load - */ - int set_pwm_rate(int hz); - - bool dump_one; + void print_status(); private: // XXX - static const unsigned _max_actuators = PX4IO_CONTROL_CHANNELS; - unsigned _update_rate; ///< serial send rate in Hz + unsigned _max_actuators; + unsigned _max_rc_input; + unsigned _max_relays; + unsigned _max_transfer; - int _serial_fd; ///< serial interface to PX4IO - hx_stream_t _io_stream; ///< HX protocol stream + unsigned _update_interval; ///< subscription interval limiting send rate volatile int _task; ///< worker task volatile bool _task_should_exit; - volatile bool _connected; ///< true once we have received a valid frame - int _t_actuators; ///< actuator output topic - actuator_controls_s _controls; ///< actuator outputs + perf_counter_t _perf_update; - orb_advert_t _t_actuators_effective; ///< effective actuator controls topic - actuator_controls_effective_s _controls_effective; ///< effective controls + /* cached IO state */ + uint16_t _status; + uint16_t _alarms; + /* subscribed topics */ + int _t_actuators; ///< actuator output topic int _t_armed; ///< system armed control topic - actuator_armed_s _armed; ///< system armed state int _t_vstatus; ///< system / vehicle status - vehicle_status_s _vstatus; ///< overall system state + int _t_param; ///< parameter update topic + /* advertised topics */ orb_advert_t _to_input_rc; ///< rc inputs from io - rc_input_values _input_rc; ///< rc input values - + orb_advert_t _to_actuators_effective; ///< effective actuator controls topic + orb_advert_t _to_outputs; ///< mixed servo outputs topic orb_advert_t _to_battery; ///< battery status / voltage - battery_status_s _battery_status;///< battery status data - orb_advert_t _t_outputs; ///< mixed outputs topic actuator_outputs_s _outputs; ///< mixed outputs - - const char *volatile _mix_buf; ///< mixer text buffer - volatile unsigned _mix_buf_len; ///< size of the mixer text buffer + actuator_controls_effective_s _controls_effective; ///< effective controls bool _primary_pwm_device; ///< true if we are the default PWM output - uint32_t _relays; ///< state of the PX4IO relays, one bit per relay - - volatile bool _switch_armed; ///< PX4IO switch armed state - // XXX how should this work? - - bool _send_needed; ///< If true, we need to send a packet to IO - bool _config_needed; ///< if true, we need to set a config update to IO /** * Trampoline to the worker task @@ -159,43 +145,125 @@ private: void task_main(); /** - * Handle receiving bytes from PX4IO + * Send controls to IO + */ + int io_set_control_state(); + + /** + * Update IO's arming-related state + */ + int io_set_arming_state(); + + /** + * Push RC channel configuration to IO. + */ + int io_set_rc_config(); + + /** + * Fetch status and alarms from IO + * + * Also publishes battery voltage/current. + */ + int io_get_status(); + + /** + * Fetch RC inputs from IO. + * + * @param input_rc Input structure to populate. + * @return OK if data was returned. */ - void io_recv(); + int io_get_raw_rc_input(rc_input_values &input_rc); /** - * HX protocol callback trampoline. + * Fetch and publish raw RC input data. */ - static void rx_callback_trampoline(void *arg, const void *buffer, size_t bytes_received); + int io_publish_raw_rc(); /** - * Callback invoked when we receive a whole packet from PX4IO + * Fetch and publish the mixed control values. */ - void rx_callback(const uint8_t *buffer, size_t bytes_received); + int io_publish_mixed_controls(); /** - * Send an update packet to PX4IO + * Fetch and publish the PWM servo outputs. */ - void io_send(); + int io_publish_pwm_outputs(); /** - * Send a config packet to PX4IO + * write register(s) + * + * @param page Register page to write to. + * @param offset Register offset to start writing at. + * @param values Pointer to array of values to write. + * @param num_values The number of values to write. + * @return Zero if all values were successfully written. */ - void config_send(); + int io_reg_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num_values); /** - * Send a buffer containing mixer text to PX4IO + * write a register + * + * @param page Register page to write to. + * @param offset Register offset to write to. + * @param value Value to write. + * @return Zero if the value was written successfully. + */ + int io_reg_set(uint8_t page, uint8_t offset, const uint16_t value); + + /** + * read register(s) + * + * @param page Register page to read from. + * @param offset Register offset to start reading from. + * @param values Pointer to array where values should be stored. + * @param num_values The number of values to read. + * @return Zero if all values were successfully read. + */ + int io_reg_get(uint8_t page, uint8_t offset, uint16_t *values, unsigned num_values); + + /** + * read a register + * + * @param page Register page to read from. + * @param offset Register offset to start reading from. + * @return Register value that was read, or _io_reg_get_error on error. + */ + uint32_t io_reg_get(uint8_t page, uint8_t offset); + static const uint32_t _io_reg_get_error = 0x80000000; + + /** + * modify a register + * + * @param page Register page to modify. + * @param offset Register offset to modify. + * @param clearbits Bits to clear in the register. + * @param setbits Bits to set in the register. + */ + int io_reg_modify(uint8_t page, uint8_t offset, uint16_t clearbits, uint16_t setbits); + + /** + * Send mixer definition text to IO */ int mixer_send(const char *buf, unsigned buflen); /** - * Mixer control callback; invoked to fetch a control from a specific - * group/index during mixing. + * Handle a status update from IO. + * + * Publish IO status information if necessary. + * + * @param status The status register + */ + int io_handle_status(uint16_t status); + + /** + * Handle an alarm update from IO. + * + * Publish IO alarm information if necessary. + * + * @param alarm The status register */ - static int control_callback(uintptr_t handle, - uint8_t control_group, - uint8_t control_index, - float &input); + int io_handle_alarms(uint16_t alarms); + }; @@ -207,26 +275,26 @@ PX4IO *g_dev; } PX4IO::PX4IO() : - CDev("px4io", "/dev/px4io"), - dump_one(false), - _update_rate(50), - _serial_fd(-1), - _io_stream(nullptr), + I2C("px4io", "/dev/px4io", PX4_I2C_BUS_ONBOARD, PX4_I2C_OBDEV_PX4IO, 320000), + _max_actuators(0), + _max_rc_input(0), + _max_relays(0), + _max_transfer(16), /* sensible default */ + _update_interval(0), _task(-1), _task_should_exit(false), - _connected(false), + _perf_update(perf_alloc(PC_ELAPSED, "px4io update")), + _status(0), + _alarms(0), _t_actuators(-1), - _t_actuators_effective(-1), _t_armed(-1), _t_vstatus(-1), - _t_outputs(-1), - _mix_buf(nullptr), - _mix_buf_len(0), - _primary_pwm_device(false), - _relays(0), - _switch_armed(false), - _send_needed(false), - _config_needed(true) + _t_param(-1), + _to_input_rc(0), + _to_actuators_effective(0), + _to_outputs(0), + _to_battery(0), + _primary_pwm_device(false) { /* we need this potentially before it could be set in task_main */ g_dev = this; @@ -260,11 +328,149 @@ PX4IO::init() ASSERT(_task == -1); /* do regular cdev init */ - ret = CDev::init(); + ret = I2C::init(); + if (ret != OK) + return ret; + + /* + * Enable a couple of retries for operations to IO. + * + * Register read/write operations are intentionally idempotent + * so this is safe as designed. + */ + _retries = 2; + + /* get some parameters */ + _max_actuators = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_ACTUATOR_COUNT); + _max_relays = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_RELAY_COUNT); + _max_transfer = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_MAX_TRANSFER) - 2; + _max_rc_input = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_RC_INPUT_COUNT); + if ((_max_actuators < 1) || (_max_actuators > 255) || + (_max_relays < 1) || (_max_relays > 255) || + (_max_transfer < 16) || (_max_transfer > 255) || + (_max_rc_input < 1) || (_max_rc_input > 255)) { + + log("failed getting parameters from PX4IO"); + return -1; + } + if (_max_rc_input > RC_INPUT_MAX_CHANNELS) + _max_rc_input = RC_INPUT_MAX_CHANNELS; + /* + * Check for IO flight state - if FMU was flagged to be in + * armed state, FMU is recovering from an in-air reset. + * Read back status and request the commander to arm + * in this case. + */ + + uint16_t reg; + + /* get IO's last seen FMU state */ + ret = io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, ®, sizeof(reg)); if (ret != OK) return ret; + /* + * in-air restart is only tried if the IO board reports it is + * already armed, and has been configured for in-air restart + */ + if ((reg & PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK) && + (reg & PX4IO_P_SETUP_ARMING_ARM_OK)) { + + /* WARNING: COMMANDER app/vehicle status must be initialized. + * If this fails (or the app is not started), worst-case IO + * remains untouched (so manual override is still available). + */ + + int vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); + /* fill with initial values, clear updated flag */ + vehicle_status_s status; + uint64_t try_start_time = hrt_absolute_time(); + bool updated = false; + + /* keep checking for an update, ensure we got a recent state, + not something that was published a long time ago. */ + do { + orb_check(vstatus_sub, &updated); + + if (updated) { + /* got data, copy and exit loop */ + orb_copy(ORB_ID(vehicle_status), vstatus_sub, &status); + break; + } + + /* wait 10 ms */ + usleep(10000); + + /* abort after 5s */ + if ((hrt_absolute_time() - try_start_time)/1000 > 50000) { + log("failed to recover from in-air restart (1), aborting IO driver init."); + return 1; + } + + } while (true); + + /* send command to arm system via command API */ + vehicle_command_s cmd; + /* request arming */ + cmd.param1 = 1.0f; + cmd.param2 = 0; + cmd.param3 = 0; + cmd.param4 = 0; + cmd.param5 = 0; + cmd.param6 = 0; + cmd.param7 = 0; + cmd.command = VEHICLE_CMD_COMPONENT_ARM_DISARM; + cmd.target_system = status.system_id; + cmd.target_component = status.component_id; + cmd.source_system = status.system_id; + cmd.source_component = status.component_id; + /* ask to confirm command */ + cmd.confirmation = 1; + + /* send command once */ + (void)orb_advertise(ORB_ID(vehicle_command), &cmd); + + /* spin here until IO's state has propagated into the system */ + do { + orb_check(vstatus_sub, &updated); + + if (updated) { + orb_copy(ORB_ID(vehicle_status), vstatus_sub, &status); + } + + /* wait 10 ms */ + usleep(10000); + + /* abort after 5s */ + if ((hrt_absolute_time() - try_start_time)/1000 > 50000) { + log("failed to recover from in-air restart (2), aborting IO driver init."); + return 1; + } + + /* keep waiting for state change for 10 s */ + } while (!status.flag_system_armed); + + /* regular boot, no in-air restart, init IO */ + } else { + + + /* dis-arm IO before touching anything */ + io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, + PX4IO_P_SETUP_ARMING_ARM_OK | + PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK | + PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK | + PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK, 0); + + /* publish RC config to IO */ + ret = io_set_rc_config(); + if (ret != OK) { + log("failed to update RC input config"); + return ret; + } + + } + /* try to claim the generic PWM output device node as well - it's OK if we fail at this */ ret = register_driver(PWM_OUTPUT_DEVICE_PATH, &fops, 0666, (void *)this); @@ -281,36 +487,9 @@ PX4IO::init() return -errno; } - /* wait a second for it to detect IO */ - for (unsigned i = 0; i < 10; i++) { - if (_connected) { - debug("PX4IO connected"); - break; - } - - usleep(100000); - } - - if (!_connected) { - /* error here will result in everything being torn down */ - log("PX4IO not responding"); - return -EIO; - } - return OK; } -int -PX4IO::set_pwm_rate(int hz) -{ - if (hz > 0 && hz <= 400) { - _update_rate = hz; - return OK; - } else { - return -EINVAL; - } -} - void PX4IO::task_main_trampoline(int argc, char *argv[]) { @@ -320,39 +499,9 @@ PX4IO::task_main_trampoline(int argc, char *argv[]) void PX4IO::task_main() { - log("starting"); - unsigned update_rate_in_ms; - - /* open the serial port */ - _serial_fd = ::open("/dev/ttyS2", O_RDWR); - - if (_serial_fd < 0) { - log("failed to open serial port: %d", errno); - goto out; - } - - /* 115200bps, no parity, one stop bit */ - { - struct termios t; - - tcgetattr(_serial_fd, &t); - cfsetspeed(&t, 115200); - t.c_cflag &= ~(CSTOPB | PARENB); - tcsetattr(_serial_fd, TCSANOW, &t); - } - - /* protocol stream */ - _io_stream = hx_stream_init(_serial_fd, &PX4IO::rx_callback_trampoline, this); - - if (_io_stream == nullptr) { - log("failed to allocate HX protocol stream"); - goto out; - } + hrt_abstime last_poll_time = 0; - hx_stream_set_counters(_io_stream, - perf_alloc(PC_COUNT, "PX4IO frames transmitted"), - perf_alloc(PC_COUNT, "PX4IO frames received"), - perf_alloc(PC_COUNT, "PX4IO receive errors")); + log("starting"); /* * Subscribe to the appropriate PWM output topic based on whether we are the @@ -360,9 +509,7 @@ PX4IO::task_main() */ _t_actuators = orb_subscribe(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS : ORB_ID(actuator_controls_1)); - /* convert the update rate in hz to milliseconds, rounding down if necessary */ - update_rate_in_ms = 1000 / _update_rate; - orb_set_interval(_t_actuators, update_rate_in_ms); + orb_set_interval(_t_actuators, 20); /* default to 50Hz */ _t_armed = orb_subscribe(ORB_ID(actuator_armed)); orb_set_interval(_t_armed, 200); /* 5Hz update rate */ @@ -370,33 +517,18 @@ PX4IO::task_main() _t_vstatus = orb_subscribe(ORB_ID(vehicle_status)); orb_set_interval(_t_vstatus, 200); /* 5Hz update rate max. */ - /* advertise the limited control inputs */ - memset(&_controls_effective, 0, sizeof(_controls_effective)); - _t_actuators_effective = orb_advertise(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE : ORB_ID(actuator_controls_1), - &_controls_effective); - - /* advertise the mixed control outputs */ - memset(&_outputs, 0, sizeof(_outputs)); - _t_outputs = orb_advertise(_primary_pwm_device ? ORB_ID_VEHICLE_CONTROLS : ORB_ID(actuator_outputs_1), - &_outputs); - - /* advertise the rc inputs */ - memset(&_input_rc, 0, sizeof(_input_rc)); - _to_input_rc = orb_advertise(ORB_ID(input_rc), &_input_rc); - - /* do not advertise the battery status until its clear that a battery is connected */ - memset(&_battery_status, 0, sizeof(_battery_status)); - _to_battery = -1; + _t_param = orb_subscribe(ORB_ID(parameter_update)); + orb_set_interval(_t_param, 500); /* 2Hz update rate max. */ /* poll descriptor */ pollfd fds[4]; - fds[0].fd = _serial_fd; + fds[0].fd = _t_actuators; fds[0].events = POLLIN; - fds[1].fd = _t_actuators; + fds[1].fd = _t_armed; fds[1].events = POLLIN; - fds[2].fd = _t_armed; + fds[2].fd = _t_vstatus; fds[2].events = POLLIN; - fds[3].fd = _t_vstatus; + fds[3].fd = _t_param; fds[3].events = POLLIN; debug("ready"); @@ -404,12 +536,22 @@ PX4IO::task_main() /* lock against the ioctl handler */ lock(); - /* loop handling received serial bytes */ + /* loop talking to IO */ while (!_task_should_exit) { - /* sleep waiting for data, but no more than 100ms */ + /* adjust update interval */ + if (_update_interval != 0) { + if (_update_interval < 5) + _update_interval = 5; + if (_update_interval > 100) + _update_interval = 100; + orb_set_interval(_t_actuators, _update_interval); + _update_interval = 0; + } + + /* sleep waiting for topic updates, but no more than 20ms */ unlock(); - int ret = ::poll(&fds[0], sizeof(fds) / sizeof(fds[0]), 100); + int ret = ::poll(&fds[0], sizeof(fds) / sizeof(fds[0]), 20); lock(); /* this would be bad... */ @@ -418,76 +560,64 @@ PX4IO::task_main() continue; } - /* if we timed out waiting, we should send an update */ - if (ret == 0) - _send_needed = true; - - if (ret > 0) { - /* if we have new data from IO, go handle it */ - if (fds[0].revents & POLLIN) - io_recv(); - - /* if we have new control data from the ORB, handle it */ - if (fds[1].revents & POLLIN) { - - /* get controls */ - orb_copy(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS : - ORB_ID(actuator_controls_1), _t_actuators, &_controls); - - /* scale controls to PWM (temporary measure) */ - for (unsigned i = 0; i < _max_actuators; i++) - _outputs.output[i] = 1500 + (600 * _controls.control[i]); - - /* and flag for update */ - _send_needed = true; - } - - /* if we have an arming state update, handle it */ - if (fds[2].revents & POLLIN) { - - orb_copy(ORB_ID(actuator_armed), _t_armed, &_armed); - _send_needed = true; - } - + perf_begin(_perf_update); + hrt_abstime now = hrt_absolute_time(); + + /* if we have new control data from the ORB, handle it */ + if (fds[0].revents & POLLIN) + io_set_control_state(); + + /* if we have an arming state update, handle it */ + if ((fds[1].revents & POLLIN) || (fds[2].revents & POLLIN)) + io_set_arming_state(); + + /* + * If it's time for another tick of the polling status machine, + * try it now. + */ + if ((now - last_poll_time) >= 20000) { + + /* + * Pull status and alarms from IO. + */ + io_get_status(); + + /* + * Get raw R/C input from IO. + */ + io_publish_raw_rc(); + + /* + * Fetch mixed servo controls and PWM outputs from IO. + * + * XXX We could do this at a reduced rate in many/most cases. + */ + io_publish_mixed_controls(); + io_publish_pwm_outputs(); + + /* + * If parameters have changed, re-send RC mappings to IO + * + * XXX this may be a bit spammy + */ if (fds[3].revents & POLLIN) { - orb_copy(ORB_ID(vehicle_status), _t_vstatus, &_vstatus); - _send_needed = true; - } - } - - /* send a config packet to IO if required */ - if (_config_needed) { - _config_needed = false; - config_send(); - } + parameter_update_s pupdate; - /* send a mixer update if needed */ - if (_mix_buf != nullptr) { - mixer_send(_mix_buf, _mix_buf_len); + /* copy to reset the notification */ + orb_copy(ORB_ID(parameter_update), _t_param, &pupdate); - /* clear the buffer record so the ioctl handler knows we're done */ - _mix_buf = nullptr; - _mix_buf_len = 0; + /* re-upload RC input config as it may have changed */ + io_set_rc_config(); + } } - /* send an update to IO if required */ - if (_send_needed) { - _send_needed = false; - io_send(); - } + perf_end(_perf_update); } unlock(); -out: debug("exiting"); - /* kill the HX stream */ - if (_io_stream != nullptr) - hx_stream_free(_io_stream); - - ::close(_serial_fd); - /* clean up the alternate device node */ if (_primary_pwm_device) unregister_driver(PWM_OUTPUT_DEVICE_PATH); @@ -498,208 +628,484 @@ out: } int -PX4IO::control_callback(uintptr_t handle, - uint8_t control_group, - uint8_t control_index, - float &input) +PX4IO::io_set_control_state() { - const actuator_controls_s *controls = (actuator_controls_s *)handle; + actuator_controls_s controls; ///< actuator outputs + uint16_t regs[_max_actuators]; - input = controls->control[control_index]; - return 0; + /* get controls */ + orb_copy(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS : + ORB_ID(actuator_controls_1), _t_actuators, &controls); + + for (unsigned i = 0; i < _max_actuators; i++) + regs[i] = FLOAT_TO_REG(controls.control[i]); + + /* copy values to registers in IO */ + return io_reg_set(PX4IO_PAGE_CONTROLS, 0, regs, _max_actuators); } -void -PX4IO::io_recv() +int +PX4IO::io_set_arming_state() { - uint8_t buf[32]; - int count; + actuator_armed_s armed; ///< system armed state + vehicle_status_s vstatus; ///< overall system state - /* - * We are here because poll says there is some data, so this - * won't block even on a blocking device. If more bytes are - * available, we'll go back to poll() again... - */ - count = ::read(_serial_fd, buf, sizeof(buf)); + orb_copy(ORB_ID(actuator_armed), _t_armed, &armed); + orb_copy(ORB_ID(vehicle_status), _t_vstatus, &vstatus); - /* pass received bytes to the packet decoder */ - for (int i = 0; i < count; i++) - hx_stream_rx(_io_stream, buf[i]); + uint16_t set = 0; + uint16_t clear = 0; + + if (armed.armed) { + set |= PX4IO_P_SETUP_ARMING_ARM_OK; + } else { + clear |= PX4IO_P_SETUP_ARMING_ARM_OK; + } + if (vstatus.flag_vector_flight_mode_ok) { + set |= PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK; + } else { + clear |= PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK; + } + if (vstatus.flag_external_manual_override_ok) { + set |= PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK; + } else { + clear |= PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK; + } + + return io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, clear, set); } -void -PX4IO::rx_callback_trampoline(void *arg, const void *buffer, size_t bytes_received) +int +PX4IO::io_set_rc_config() { - g_dev->rx_callback((const uint8_t *)buffer, bytes_received); + unsigned offset = 0; + int input_map[_max_rc_input]; + int32_t ichan; + int ret = OK; + + /* + * Generate the input channel -> control channel mapping table; + * assign RC_MAP_ROLL/PITCH/YAW/THROTTLE to the canonical + * controls. + */ + for (unsigned i = 0; i < _max_rc_input; i++) + input_map[i] = -1; + + param_get(param_find("RC_MAP_ROLL"), &ichan); + if ((ichan >= 0) && (ichan < (int)_max_rc_input)) + input_map[ichan] = 0; + + param_get(param_find("RC_MAP_PITCH"), &ichan); + if ((ichan >= 0) && (ichan < (int)_max_rc_input)) + input_map[ichan] = 1; + + param_get(param_find("RC_MAP_YAW"), &ichan); + if ((ichan >= 0) && (ichan < (int)_max_rc_input)) + input_map[ichan] = 2; + + param_get(param_find("RC_MAP_THROTTLE"), &ichan); + if ((ichan >= 0) && (ichan < (int)_max_rc_input)) + input_map[ichan] = 3; + + ichan = 4; + for (unsigned i = 0; i < _max_rc_input; i++) + if (input_map[i] == -1) + input_map[i] = ichan++; + + /* + * Iterate all possible RC inputs. + */ + for (unsigned i = 0; i < _max_rc_input; i++) { + uint16_t regs[PX4IO_P_RC_CONFIG_STRIDE]; + char pname[16]; + float fval; + + /* + * RC params are floats, but do only + * contain integer values. Do not scale + * or cast them, let the auto-typeconversion + * do its job here. + * Channels: 500 - 2500 + * Inverted flag: -1 (inverted) or 1 (normal) + */ + + sprintf(pname, "RC%d_MIN", i + 1); + param_get(param_find(pname), &fval); + regs[PX4IO_P_RC_CONFIG_MIN] = fval; + + sprintf(pname, "RC%d_TRIM", i + 1); + param_get(param_find(pname), &fval); + regs[PX4IO_P_RC_CONFIG_CENTER] = fval; + + sprintf(pname, "RC%d_MAX", i + 1); + param_get(param_find(pname), &fval); + regs[PX4IO_P_RC_CONFIG_MAX] = fval; + + sprintf(pname, "RC%d_DZ", i + 1); + param_get(param_find(pname), &fval); + regs[PX4IO_P_RC_CONFIG_DEADZONE] = fval; + + regs[PX4IO_P_RC_CONFIG_ASSIGNMENT] = input_map[i]; + + regs[PX4IO_P_RC_CONFIG_OPTIONS] = PX4IO_P_RC_CONFIG_OPTIONS_ENABLED; + sprintf(pname, "RC%d_REV", i + 1); + param_get(param_find(pname), &fval); + + /* + * This has been taken for the sake of compatibility + * with APM's setup / mission planner: normal: 1, + * inverted: -1 + */ + if (fval < 0) { + regs[PX4IO_P_RC_CONFIG_OPTIONS] |= PX4IO_P_RC_CONFIG_OPTIONS_REVERSE; + } + + /* send channel config to IO */ + ret = io_reg_set(PX4IO_PAGE_RC_CONFIG, offset, regs, PX4IO_P_RC_CONFIG_STRIDE); + if (ret != OK) { + log("RC config update failed"); + break; + } + offset += PX4IO_P_RC_CONFIG_STRIDE; + } + + return ret; } -void -PX4IO::rx_callback(const uint8_t *buffer, size_t bytes_received) +int +PX4IO::io_handle_status(uint16_t status) { - const px4io_report *rep = (const px4io_report *)buffer; + int ret = 1; + /** + * WARNING: This section handles in-air resets. + */ -// lock(); + /* check for IO reset - force it back to armed if necessary */ + if (_status & PX4IO_P_STATUS_FLAGS_ARMED && !(status & PX4IO_P_STATUS_FLAGS_ARMED) + && !(status & PX4IO_P_STATUS_FLAGS_ARM_SYNC)) { + /* set the arming flag */ + ret = io_reg_modify(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS, 0, PX4IO_P_STATUS_FLAGS_ARMED | PX4IO_P_STATUS_FLAGS_ARM_SYNC); - /* sanity-check the received frame size */ - if (bytes_received != sizeof(px4io_report)) { - debug("got %u expected %u", bytes_received, sizeof(px4io_report)); - goto out; - } + /* set new status */ + _status = status; + _status &= PX4IO_P_STATUS_FLAGS_ARMED; + } else if (!(_status & PX4IO_P_STATUS_FLAGS_ARM_SYNC)) { - if (rep->i2f_magic != I2F_MAGIC) { - debug("bad magic"); - goto out; + /* set the sync flag */ + ret = io_reg_modify(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS, 0, PX4IO_P_STATUS_FLAGS_ARM_SYNC); + /* set new status */ + _status = status; + + } else { + ret = 0; + + /* set new status */ + _status = status; } - _connected = true; + return ret; +} - /* publish raw rc channel values from IO if valid channels are present */ - if (rep->channel_count > 0) { - _input_rc.timestamp = hrt_absolute_time(); - _input_rc.channel_count = rep->channel_count; +int +PX4IO::io_handle_alarms(uint16_t alarms) +{ - for (int i = 0; i < rep->channel_count; i++) { - _input_rc.values[i] = rep->rc_channel[i]; - } + /* XXX handle alarms */ - orb_publish(ORB_ID(input_rc), _to_input_rc, &_input_rc); - } - /* remember the latched arming switch state */ - _switch_armed = rep->armed; + /* set new alarms state */ + _alarms = alarms; - /* publish battery information */ + return 0; +} + +int +PX4IO::io_get_status() +{ + uint16_t regs[4]; + int ret; + + /* get STATUS_FLAGS, STATUS_ALARMS, STATUS_VBATT, STATUS_IBATT in that order */ + ret = io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS, ®s[0], sizeof(regs) / sizeof(regs[0])); + if (ret != OK) + return ret; + + io_handle_status(regs[0]); + io_handle_alarms(regs[1]); /* only publish if battery has a valid minimum voltage */ - if (rep->battery_mv > 3300) { - _battery_status.timestamp = hrt_absolute_time(); - _battery_status.voltage_v = rep->battery_mv / 1000.0f; - /* current and discharge are unknown */ - _battery_status.current_a = -1.0f; - _battery_status.discharged_mah = -1.0f; - /* announce the battery voltage if needed, just publish else */ + if (regs[2] > 3300) { + battery_status_s battery_status; + + battery_status.timestamp = hrt_absolute_time(); + + /* voltage is scaled to mV */ + battery_status.voltage_v = regs[2] / 1000.0f; + + /* current scaling should be to cA in order to avoid limiting at 65A */ + battery_status.current_a = regs[3] / 100.f; + + /* this requires integration over time - not currently implemented */ + battery_status.discharged_mah = -1.0f; + + /* lazily publish the battery voltage */ if (_to_battery > 0) { - orb_publish(ORB_ID(battery_status), _to_battery, &_battery_status); + orb_publish(ORB_ID(battery_status), _to_battery, &battery_status); } else { - _to_battery = orb_advertise(ORB_ID(battery_status), &_battery_status); + _to_battery = orb_advertise(ORB_ID(battery_status), &battery_status); } } + return ret; +} - _send_needed = true; +int +PX4IO::io_get_raw_rc_input(rc_input_values &input_rc) +{ + uint32_t channel_count; + int ret = OK; - /* if monitoring, dump the received info */ - if (dump_one) { - dump_one = false; + /* we don't have the status bits, so input_source has to be set elsewhere */ + input_rc.input_source = RC_INPUT_SOURCE_UNKNOWN; + + /* + * XXX Because the channel count and channel data are fetched + * separately, there is a risk of a race between the two + * that could leave us with channel data and a count that + * are out of sync. + * Fixing this would require a guarantee of atomicity from + * IO, and a single fetch for both count and channels. + * + * XXX Since IO has the input calibration info, we ought to be + * able to get the pre-fixed-up controls directly. + * + * XXX can we do this more cheaply? If we knew we had DMA, it would + * almost certainly be better to just get all the inputs... + */ + channel_count = io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RAW_RC_COUNT); + if (channel_count == _io_reg_get_error) + return -EIO; + if (channel_count > RC_INPUT_MAX_CHANNELS) + channel_count = RC_INPUT_MAX_CHANNELS; + input_rc.channel_count = channel_count; + + if (channel_count > 0) { + ret = io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RAW_RC_BASE, input_rc.values, channel_count); + if (ret == OK) + input_rc.timestamp = hrt_absolute_time(); + } + + return ret; +} - printf("IO: %s armed ", rep->armed ? "" : "not"); +int +PX4IO::io_publish_raw_rc() +{ + /* if no raw RC, just don't publish */ + if (!(_status & PX4IO_P_STATUS_FLAGS_RC_OK)) + return OK; + + /* fetch values from IO */ + rc_input_values rc_val; + rc_val.timestamp = hrt_absolute_time(); + + int ret = io_get_raw_rc_input(rc_val); + if (ret != OK) + return ret; - for (unsigned i = 0; i < rep->channel_count; i++) - printf("%d: %d ", i, rep->rc_channel[i]); + /* sort out the source of the values */ + if (_status & PX4IO_P_STATUS_FLAGS_RC_PPM) { + rc_val.input_source = RC_INPUT_SOURCE_PX4IO_PPM; + } else if (_status & PX4IO_P_STATUS_FLAGS_RC_DSM) { + rc_val.input_source = RC_INPUT_SOURCE_PX4IO_SPEKTRUM; + } else if (_status & PX4IO_P_STATUS_FLAGS_RC_SBUS) { + rc_val.input_source = RC_INPUT_SOURCE_PX4IO_SBUS; + } else { + rc_val.input_source = RC_INPUT_SOURCE_UNKNOWN; + } - printf("\n"); + /* lazily advertise on first publication */ + if (_to_input_rc == 0) { + _to_input_rc = orb_advertise(ORB_ID(input_rc), &rc_val); + } else { + orb_publish(ORB_ID(input_rc), _to_input_rc, &rc_val); } -out: -// unlock(); - return; + return OK; } -void -PX4IO::io_send() +int +PX4IO::io_publish_mixed_controls() { - px4io_command cmd; - int ret; + /* if no FMU comms(!) just don't publish */ + if (!(_status & PX4IO_P_STATUS_FLAGS_FMU_OK)) + return OK; + + /* if not taking raw PPM from us, must be mixing */ + if (_status & PX4IO_P_STATUS_FLAGS_RAW_PWM) + return OK; - cmd.f2i_magic = F2I_MAGIC; + /* data we are going to fetch */ + actuator_controls_effective_s controls_effective; + controls_effective.timestamp = hrt_absolute_time(); - /* set outputs */ - for (unsigned i = 0; i < _max_actuators; i++) { - cmd.output_control[i] = _outputs.output[i]; + /* get actuator controls from IO */ + uint16_t act[_max_actuators]; + int ret = io_reg_get(PX4IO_PAGE_ACTUATORS, 0, act, _max_actuators); + if (ret != OK) + return ret; + + /* convert from register format to float */ + for (unsigned i = 0; i < _max_actuators; i++) + controls_effective.control_effective[i] = REG_TO_FLOAT(act[i]); + + /* laxily advertise on first publication */ + if (_to_actuators_effective == 0) { + _to_actuators_effective = + orb_advertise((_primary_pwm_device ? + ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE : + ORB_ID(actuator_controls_effective_1)), + &controls_effective); + } else { + orb_publish((_primary_pwm_device ? + ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE : + ORB_ID(actuator_controls_effective_1)), + _to_actuators_effective, &controls_effective); } - /* publish as we send */ - _outputs.timestamp = hrt_absolute_time(); - /* XXX needs to be based off post-mix values from the IO side */ - orb_publish(_primary_pwm_device ? ORB_ID_VEHICLE_CONTROLS : ORB_ID(actuator_outputs_1), _t_outputs, &_outputs); - - /* update relays */ - for (unsigned i = 0; i < PX4IO_RELAY_CHANNELS; i++) - cmd.relay_state[i] = (_relays & (1<< i)) ? true : false; - - /* armed and not locked down -> arming ok */ - cmd.arm_ok = (_armed.armed && !_armed.lockdown); - /* indicate that full autonomous position control / vector flight mode is available */ - cmd.vector_flight_mode_ok = _vstatus.flag_vector_flight_mode_ok; - /* allow manual override on IO (not allowed for multirotors or other systems with SAS) */ - cmd.manual_override_ok = _vstatus.flag_external_manual_override_ok; - /* set desired PWM output rate */ - cmd.servo_rate = _update_rate; - - ret = hx_stream_send(_io_stream, &cmd, sizeof(cmd)); - if (ret) - debug("send error %d", ret); + return OK; } -void -PX4IO::config_send() +int +PX4IO::io_publish_pwm_outputs() { - px4io_config cfg; - int ret; + /* if no FMU comms(!) just don't publish */ + if (!(_status & PX4IO_P_STATUS_FLAGS_FMU_OK)) + return OK; - cfg.f2i_config_magic = F2I_CONFIG_MAGIC; - - int val; - - /* maintaing the standard order of Roll, Pitch, Yaw, Throttle */ - param_get(param_find("RC_MAP_ROLL"), &val); - cfg.rc_map[0] = val; - param_get(param_find("RC_MAP_PITCH"), &val); - cfg.rc_map[1] = val; - param_get(param_find("RC_MAP_YAW"), &val); - cfg.rc_map[2] = val; - param_get(param_find("RC_MAP_THROTTLE"), &val); - cfg.rc_map[3] = val; - - /* set the individual channel properties */ - char nbuf[16]; - float float_val; - for (unsigned i = 0; i < 4; i++) { - sprintf(nbuf, "RC%d_MIN", i + 1); - param_get(param_find(nbuf), &float_val); - cfg.rc_min[i] = float_val; - } - for (unsigned i = 0; i < 4; i++) { - sprintf(nbuf, "RC%d_TRIM", i + 1); - param_get(param_find(nbuf), &float_val); - cfg.rc_trim[i] = float_val; - } - for (unsigned i = 0; i < 4; i++) { - sprintf(nbuf, "RC%d_MAX", i + 1); - param_get(param_find(nbuf), &float_val); - cfg.rc_max[i] = float_val; - } - for (unsigned i = 0; i < 4; i++) { - sprintf(nbuf, "RC%d_REV", i + 1); - param_get(param_find(nbuf), &float_val); - cfg.rc_rev[i] = float_val; + /* data we are going to fetch */ + actuator_outputs_s outputs; + outputs.timestamp = hrt_absolute_time(); + + /* get servo values from IO */ + uint16_t ctl[_max_actuators]; + int ret = io_reg_get(PX4IO_PAGE_SERVOS, 0, ctl, _max_actuators); + if (ret != OK) + return ret; + + /* convert from register format to float */ + for (unsigned i = 0; i < _max_actuators; i++) + outputs.output[i] = REG_TO_FLOAT(ctl[i]); + outputs.noutputs = _max_actuators; + + /* lazily advertise on first publication */ + if (_to_outputs == 0) { + _to_outputs = orb_advertise((_primary_pwm_device ? + ORB_ID_VEHICLE_CONTROLS : + ORB_ID(actuator_outputs_1)), + &outputs); + } else { + orb_publish((_primary_pwm_device ? + ORB_ID_VEHICLE_CONTROLS : + ORB_ID(actuator_outputs_1)), + _to_outputs, + &outputs); } - for (unsigned i = 0; i < 4; i++) { - sprintf(nbuf, "RC%d_DZ", i + 1); - param_get(param_find(nbuf), &float_val); - cfg.rc_dz[i] = float_val; + + return OK; +} + +int +PX4IO::io_reg_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num_values) +{ + /* range check the transfer */ + if (num_values > ((_max_transfer) / sizeof(*values))) { + debug("io_reg_set: too many registers (%u, max %u)", num_values, _max_transfer / 2); + return -EINVAL; } - ret = hx_stream_send(_io_stream, &cfg, sizeof(cfg)); + /* set up the transfer */ + uint8_t addr[2] = { + page, + offset + }; + i2c_msg_s msgv[2]; + + msgv[0].flags = 0; + msgv[0].buffer = addr; + msgv[0].length = 2; + msgv[1].flags = I2C_M_NORESTART; + msgv[1].buffer = (uint8_t *)values; + msgv[1].length = num_values * sizeof(*values); + + /* perform the transfer */ + int ret = transfer(msgv, 2); + if (ret != OK) + debug("io_reg_set: error %d", ret); + return ret; +} + +int +PX4IO::io_reg_set(uint8_t page, uint8_t offset, uint16_t value) +{ + return io_reg_set(page, offset, &value, 1); +} + +int +PX4IO::io_reg_get(uint8_t page, uint8_t offset, uint16_t *values, unsigned num_values) +{ + /* set up the transfer */ + uint8_t addr[2] = { + page, + offset + }; + i2c_msg_s msgv[2]; + + msgv[0].flags = 0; + msgv[0].buffer = addr; + msgv[0].length = 2; + msgv[1].flags = I2C_M_READ; + msgv[1].buffer = (uint8_t *)values; + msgv[1].length = num_values * sizeof(*values); + + /* perform the transfer */ + int ret = transfer(msgv, 2); + if (ret != OK) + debug("io_reg_get: data error %d", ret); + return ret; +} + +uint32_t +PX4IO::io_reg_get(uint8_t page, uint8_t offset) +{ + uint16_t value; + + if (io_reg_get(page, offset, &value, 1)) + return _io_reg_get_error; + + return value; +} + +int +PX4IO::io_reg_modify(uint8_t page, uint8_t offset, uint16_t clearbits, uint16_t setbits) +{ + int ret; + uint16_t value; + ret = io_reg_get(page, offset, &value, 1); if (ret) - debug("config error %d", ret); + return ret; + value &= ~clearbits; + value |= setbits; + + return io_reg_set(page, offset, value); } int PX4IO::mixer_send(const char *buf, unsigned buflen) { - uint8_t frame[HX_STREAM_MAX_FRAME]; + uint8_t frame[_max_transfer]; px4io_mixdata *msg = (px4io_mixdata *)&frame[0]; + unsigned max_len = _max_transfer - sizeof(px4io_mixdata); msg->f2i_mixer_magic = F2I_MIXER_MAGIC; msg->action = F2I_MIXER_ACTION_RESET; @@ -707,8 +1113,8 @@ PX4IO::mixer_send(const char *buf, unsigned buflen) do { unsigned count = buflen; - if (count > F2I_MIXER_MAX_TEXT) - count = F2I_MIXER_MAX_TEXT; + if (count > max_len) + count = max_len; if (count > 0) { memcpy(&msg->text[0], buf, count); @@ -716,7 +1122,20 @@ PX4IO::mixer_send(const char *buf, unsigned buflen) buflen -= count; } - int ret = hx_stream_send(_io_stream, msg, sizeof(px4io_mixdata) + count); + /* + * We have to send an even number of bytes. This + * will only happen on the very last transfer of a + * mixer, and we are guaranteed that there will be + * space left to round up as _max_transfer will be + * even. + */ + unsigned total_len = sizeof(px4io_mixdata) + count; + if (total_len % 1) { + msg->text[count] = '\0'; + total_len++; + } + + int ret = io_reg_set(PX4IO_PAGE_MIXERLOAD, 0, (uint16_t *)frame, total_len / 2); if (ret) { log("mixer send error %d", ret); @@ -727,7 +1146,110 @@ PX4IO::mixer_send(const char *buf, unsigned buflen) } while (buflen > 0); - return 0; + /* check for the mixer-OK flag */ + if (io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS) & PX4IO_P_STATUS_FLAGS_MIXER_OK) { + debug("mixer upload OK"); + return 0; + } else { + debug("mixer rejected by IO"); + } + + /* load must have failed for some reason */ + return -EINVAL; +} + +void +PX4IO::print_status() +{ + /* basic configuration */ + printf("protocol %u software %u bootloader %u buffer %uB\n", + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_PROTOCOL_VERSION), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_SOFTWARE_VERSION), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_BOOTLOADER_VERSION), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_MAX_TRANSFER)); + printf("%u controls %u actuators %u R/C inputs %u analog inputs %u relays\n", + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_CONTROL_COUNT), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_ACTUATOR_COUNT), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_RC_INPUT_COUNT), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_ADC_INPUT_COUNT), + io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_RELAY_COUNT)); + + /* status */ + printf("%u bytes free\n", + io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FREEMEM)); + uint16_t flags = io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS); + printf("status 0x%04x%s%s%s%s%s%s%s%s%s%s\n", + flags, + ((flags & PX4IO_P_STATUS_FLAGS_ARMED) ? " ARMED" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_OVERRIDE) ? " OVERRIDE" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_RC_OK) ? " RC_OK" : " RC_FAIL"), + ((flags & PX4IO_P_STATUS_FLAGS_RC_PPM) ? " PPM" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_RC_DSM) ? " DSM" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_RC_SBUS) ? " SBUS" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_FMU_OK) ? " FMU_OK" : " FMU_FAIL"), + ((flags & PX4IO_P_STATUS_FLAGS_RAW_PWM) ? " RAW_PPM" : ""), + ((flags & PX4IO_P_STATUS_FLAGS_MIXER_OK) ? " MIXER_OK" : " MIXER_FAIL"), + ((flags & PX4IO_P_STATUS_FLAGS_ARM_SYNC) ? " ARM_SYNC" : " ARM_NO_SYNC")); + uint16_t alarms = io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_ALARMS); + printf("alarms 0x%04x%s%s%s%s%s%s\n", + alarms, + ((alarms & PX4IO_P_STATUS_ALARMS_VBATT_LOW) ? " VBATT_LOW" : ""), + ((alarms & PX4IO_P_STATUS_ALARMS_TEMPERATURE) ? " TEMPERATURE" : ""), + ((alarms & PX4IO_P_STATUS_ALARMS_SERVO_CURRENT) ? " SERVO_CURRENT" : ""), + ((alarms & PX4IO_P_STATUS_ALARMS_ACC_CURRENT) ? " ACC_CURRENT" : ""), + ((alarms & PX4IO_P_STATUS_ALARMS_FMU_LOST) ? " FMU_LOST" : ""), + ((alarms & PX4IO_P_STATUS_ALARMS_RC_LOST) ? " RC_LOST" : "")); + printf("vbatt %u ibatt %u\n", + io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_VBATT), + io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_IBATT)); + printf("actuators"); + for (unsigned i = 0; i < _max_actuators; i++) + printf(" %u", io_reg_get(PX4IO_PAGE_ACTUATORS, i)); + printf("\n"); + printf("servos"); + for (unsigned i = 0; i < _max_actuators; i++) + printf(" %u", io_reg_get(PX4IO_PAGE_SERVOS, i)); + printf("\n"); + uint16_t raw_inputs = io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RAW_RC_COUNT); + printf("%d R/C inputs", raw_inputs); + for (unsigned i = 0; i < raw_inputs; i++) + printf(" %u", io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RAW_RC_BASE + i)); + printf("\n"); + uint16_t valid_inputs = io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RC_VALID); + printf("valid R/C inputs 0x%04x", valid_inputs); + for (unsigned i = 0; i < _max_rc_input; i++) { + if (valid_inputs && (1 << i)) + printf(" %u:%u", i, io_reg_get(PX4IO_PAGE_RC_INPUT, PX4IO_P_RC_BASE + i)); + } + printf("\n"); + uint16_t adc_inputs = io_reg_get(PX4IO_PAGE_CONFIG, PX4IO_P_CONFIG_ADC_INPUT_COUNT); + printf("ADC inputs"); + for (unsigned i = 0; i < adc_inputs; i++) + printf(" %u", io_reg_get(PX4IO_PAGE_RAW_ADC_INPUT, i)); + printf("\n"); + + /* setup */ + printf("features 0x%04x\n", io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_FEATURES)); + uint16_t arming = io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING); + printf("arming 0x%04x%s%s%s\n", + ((arming & PX4IO_P_SETUP_ARMING_ARM_OK) ? "ARM_OK" : ""), + ((arming & PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK) ? "MANUAL_OVERRIDE_OK" : ""), + ((arming & PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK) ? "VECTOR_FLIGHT_OK" : ""), + ((arming & PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK) ? "INAIR_RESTART_OK" : "")); + printf("rates 0x%04x lowrate %u highrate %u relays 0x%04x\n", + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_PWM_RATES), + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_PWM_LOWRATE), + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_PWM_HIGHRATE), + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_RELAYS)); + printf("vbatt scale %u ibatt scale %u ibatt bias %u\n", + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_VBATT_SCALE), + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_IBATT_SCALE), + io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_IBATT_BIAS)); + printf("debuglevel %u\n", io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_SET_DEBUG)); + printf("failsafe"); + for (unsigned i = 0; i < _max_actuators; i++) + printf(" %u", io_reg_get(PX4IO_PAGE_FAILSAFE_PWM, i)); + printf("\n"); } int @@ -735,104 +1257,164 @@ PX4IO::ioctl(file *filep, int cmd, unsigned long arg) { int ret = OK; - lock(); - /* regular ioctl? */ switch (cmd) { case PWM_SERVO_ARM: - /* fake an armed transition */ - _armed.armed = true; - _send_needed = true; + /* set the 'armed' bit */ + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, 0, PX4IO_P_SETUP_ARMING_ARM_OK); break; case PWM_SERVO_DISARM: - /* fake a disarmed transition */ - _armed.armed = false; - _send_needed = true; + /* clear the 'armed' bit */ + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, PX4IO_P_SETUP_ARMING_ARM_OK, 0); + break; + + case PWM_SERVO_INAIR_RESTART_ENABLE: + /* set the 'in-air restart' bit */ + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, 0, PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK); + break; + + case PWM_SERVO_INAIR_RESTART_DISABLE: + /* unset the 'in-air restart' bit */ + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK, 0); break; case PWM_SERVO_SET_UPDATE_RATE: - // not supported yet - ret = -EINVAL; + /* set the requested rate */ + if ((arg >= 50) && (arg <= 400)) { + ret = io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_PWM_HIGHRATE, arg); + } else { + ret = -EINVAL; + } + break; + + case PWM_SERVO_GET_COUNT: + *(unsigned *)arg = _max_actuators; break; - case PWM_SERVO_SET(0) ... PWM_SERVO_SET(_max_actuators - 1): + case PWM_SERVO_SET_DEBUG: + /* set the debug level */ + ret = io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_SET_DEBUG, arg); + break; - /* fake an update to the selected 'servo' channel */ - if ((arg >= 900) && (arg <= 2100)) { - _outputs.output[cmd - PWM_SERVO_SET(0)] = arg; - _send_needed = true; + case PWM_SERVO_SET(0) ... PWM_SERVO_SET(PWM_OUTPUT_MAX_CHANNELS): { - } else { + unsigned channel = cmd - PWM_SERVO_SET(0); + if ((channel >= _max_actuators) || (arg < 900) || (arg > 2100)) { ret = -EINVAL; + } else { + /* send a direct PWM value */ + ret = io_reg_set(PX4IO_PAGE_DIRECT_PWM, channel, arg); } break; + } + + case PWM_SERVO_GET(0) ... PWM_SERVO_GET(PWM_OUTPUT_MAX_CHANNELS): { + + unsigned channel = cmd - PWM_SERVO_GET(0); - case PWM_SERVO_GET(0) ... PWM_SERVO_GET(_max_actuators - 1): - /* copy the current output value from the channel */ - *(servo_position_t *)arg = _outputs.output[cmd - PWM_SERVO_GET(0)]; + if (channel >= _max_actuators) { + ret = -EINVAL; + } else { + /* fetch a current PWM value */ + uint32_t value = io_reg_get(PX4IO_PAGE_SERVOS, channel); + if (value == _io_reg_get_error) { + ret = -EIO; + } else { + *(servo_position_t *)arg = value; + } + } break; + } case GPIO_RESET: - _relays = 0; - _send_needed = true; + ret = io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_RELAYS, 0); break; case GPIO_SET: + arg &= ((1 << _max_relays) - 1); + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_RELAYS, 0, arg); + break; + case GPIO_CLEAR: - /* make sure only valid bits are being set */ - if ((arg & ((1UL << PX4IO_RELAY_CHANNELS) - 1)) != arg) { - ret = EINVAL; - break; - } - if (cmd == GPIO_SET) { - _relays |= arg; - } else { - _relays &= ~arg; - } - _send_needed = true; + arg &= ((1 << _max_relays) - 1); + ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_RELAYS, arg, 0); break; case GPIO_GET: - *(uint32_t *)arg = _relays; + *(uint32_t *)arg = io_reg_get(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_RELAYS); + if (*(uint32_t *)arg == _io_reg_get_error) + ret = -EIO; break; case MIXERIOCGETOUTPUTCOUNT: - *(unsigned *)arg = PX4IO_CONTROL_CHANNELS; + *(unsigned *)arg = _max_actuators; break; case MIXERIOCRESET: ret = 0; /* load always resets */ break; - case MIXERIOCLOADBUF: + case MIXERIOCLOADBUF: { + const char *buf = (const char *)arg; + ret = mixer_send(buf, strnlen(buf, 1024)); + break; + } - /* set the buffer up for transfer */ - _mix_buf = (const char *)arg; - _mix_buf_len = strnlen(_mix_buf, 1024); + case RC_INPUT_GET: { + uint16_t status; + rc_input_values *rc_val = (rc_input_values *)arg; - /* drop the lock and wait for the thread to clear the transmit */ - unlock(); + ret = io_reg_get(PX4IO_PAGE_STATUS, PX4IO_P_STATUS_FLAGS, &status, 1); + if (ret != OK) + break; - while (_mix_buf != nullptr) - usleep(1000); + /* if no R/C input, don't try to fetch anything */ + if (!(status & PX4IO_P_STATUS_FLAGS_RC_OK)) { + ret = -ENOTCONN; + break; + } - lock(); + /* sort out the source of the values */ + if (status & PX4IO_P_STATUS_FLAGS_RC_PPM) { + rc_val->input_source = RC_INPUT_SOURCE_PX4IO_PPM; + } else if (status & PX4IO_P_STATUS_FLAGS_RC_DSM) { + rc_val->input_source = RC_INPUT_SOURCE_PX4IO_SPEKTRUM; + } else if (status & PX4IO_P_STATUS_FLAGS_RC_SBUS) { + rc_val->input_source = RC_INPUT_SOURCE_PX4IO_SBUS; + } else { + rc_val->input_source = RC_INPUT_SOURCE_UNKNOWN; + } - ret = 0; + /* read raw R/C input values */ + ret = io_reg_get(PX4IO_PAGE_RAW_RC_INPUT, PX4IO_P_RAW_RC_BASE, &(rc_val->values[0]), _max_rc_input); break; + } default: - /* not a recognised value */ + /* not a recognized value */ ret = -ENOTTY; } - unlock(); - return ret; } +ssize_t +PX4IO::write(file *filp, const char *buffer, size_t len) +{ + unsigned count = len / 2; + + if (count > _max_actuators) + count = _max_actuators; + if (count > 0) { + int ret = io_reg_set(PX4IO_PAGE_DIRECT_PWM, 0, (uint16_t *)buffer, count); + if (ret != OK) + return ret; + } + return count * 2; +} + extern "C" __EXPORT int px4io_main(int argc, char *argv[]); namespace @@ -841,35 +1423,58 @@ namespace void test(void) { - int fd; + int fd; + unsigned servo_count = 0; + unsigned pwm_value = 1000; + int direction = 1; + int ret; - fd = open(PWM_OUTPUT_DEVICE_PATH, 0); + fd = open("/dev/px4io", O_WRONLY); - if (fd < 0) { - puts("open fail"); - exit(1); - } + if (fd < 0) + err(1, "failed to open device"); + + if (ioctl(fd, PWM_SERVO_GET_COUNT, (unsigned long)&servo_count)) + err(1, "failed to get servo count"); + + if (ioctl(fd, PWM_SERVO_ARM, 0)) + err(1, "failed to arm servos"); - ioctl(fd, PWM_SERVO_ARM, 0); - ioctl(fd, PWM_SERVO_SET(0), 1000); - ioctl(fd, PWM_SERVO_SET(1), 1100); - ioctl(fd, PWM_SERVO_SET(2), 1200); - ioctl(fd, PWM_SERVO_SET(3), 1300); - ioctl(fd, PWM_SERVO_SET(4), 1400); - ioctl(fd, PWM_SERVO_SET(5), 1500); - ioctl(fd, PWM_SERVO_SET(6), 1600); - ioctl(fd, PWM_SERVO_SET(7), 1700); + for (;;) { - close(fd); + /* sweep all servos between 1000..2000 */ + servo_position_t servos[servo_count]; + for (unsigned i = 0; i < servo_count; i++) + servos[i] = pwm_value; - actuator_armed_s aa; + ret = write(fd, servos, sizeof(servos)); + if (ret != sizeof(servos)) + err(1, "error writing PWM servo data, wrote %u got %d", sizeof(servos), ret); - aa.armed = true; - aa.lockdown = false; + if (direction > 0) { + if (pwm_value < 2000) { + pwm_value++; + } else { + direction = -1; + } + } else { + if (pwm_value > 1000) { + pwm_value--; + } else { + direction = 1; + } + } - orb_advertise(ORB_ID(actuator_armed), &aa); + /* readback servo values */ + for (unsigned i = 0; i < servo_count; i++) { + servo_position_t value; - exit(0); + if (ioctl(fd, PWM_SERVO_GET(i), (unsigned long)&value)) + err(1, "error reading PWM servo %d", i); + if (value != servos[i]) + errx(1, "servo %d readback error, got %u expected %u", i, value, servos[i]); + } + } } void @@ -893,8 +1498,10 @@ monitor(void) exit(0); } - if (g_dev != nullptr) - g_dev->dump_one = true; +#warning implement this + +// if (g_dev != nullptr) +// g_dev->dump_one = true; } } @@ -903,6 +1510,10 @@ monitor(void) int px4io_main(int argc, char *argv[]) { + /* check for sufficient number of arguments */ + if (argc < 2) + goto out; + if (!strcmp(argv[1], "start")) { if (g_dev != nullptr) @@ -922,7 +1533,7 @@ px4io_main(int argc, char *argv[]) /* look for the optional pwm update rate for the supported modes */ if (strcmp(argv[2], "-u") == 0 || strcmp(argv[2], "--update-rate") == 0) { if (argc > 2 + 1) { - g_dev->set_pwm_rate(atoi(argv[2 + 1])); +#warning implement this } else { fprintf(stderr, "missing argument for pwm update rate (-u)\n"); return 1; @@ -946,14 +1557,37 @@ px4io_main(int argc, char *argv[]) if (!strcmp(argv[1], "status")) { - if (g_dev != nullptr) + if (g_dev != nullptr) { printf("[px4io] loaded\n"); - else + g_dev->print_status(); + } else { printf("[px4io] not loaded\n"); + } exit(0); } + if (!strcmp(argv[1], "debug")) { + if (argc <= 2) { + printf("usage: px4io debug LEVEL\n"); + exit(1); + } + if (g_dev == nullptr) { + printf("px4io is not started\n"); + exit(1); + } + uint8_t level = atoi(argv[2]); + // we can cheat and call the driver directly, as it + // doesn't reference filp in ioctl() + int ret = g_dev->ioctl(NULL, PWM_SERVO_SET_DEBUG, level); + if (ret != 0) { + printf("SET_DEBUG failed - %d\n", ret); + exit(1); + } + printf("SET_DEBUG %u OK\n", (unsigned)level); + exit(0); + } + /* note, stop not currently implemented */ if (!strcmp(argv[1], "update")) { @@ -1019,5 +1653,6 @@ px4io_main(int argc, char *argv[]) if (!strcmp(argv[1], "monitor")) monitor(); - errx(1, "need a command, try 'start', 'stop', 'status', 'test', 'monitor' or 'update'"); + out: + errx(1, "need a command, try 'start', 'stop', 'status', 'test', 'monitor', 'debug' or 'update'"); } diff --git a/apps/drivers/stm32/drv_hrt.c b/apps/drivers/stm32/drv_hrt.c index cd9cb45b1..bb67d5e6d 100644 --- a/apps/drivers/stm32/drv_hrt.c +++ b/apps/drivers/stm32/drv_hrt.c @@ -646,6 +646,36 @@ abstime_to_ts(struct timespec *ts, hrt_abstime abstime) } /* + * Compare a time value with the current time. + */ +hrt_abstime +hrt_elapsed_time(const volatile hrt_abstime *then) +{ + irqstate_t flags = irqsave(); + + hrt_abstime delta = hrt_absolute_time() - *then; + + irqrestore(flags); + + return delta; +} + +/* + * Store the absolute time in an interrupt-safe fashion + */ +hrt_abstime +hrt_store_absolute_time(volatile hrt_abstime *now) +{ + irqstate_t flags = irqsave(); + + hrt_abstime ts = hrt_absolute_time(); + + irqrestore(flags); + + return ts; +} + +/* * Initalise the high-resolution timing module. */ void diff --git a/apps/examples/kalman_demo/KalmanNav.cpp b/apps/examples/kalman_demo/KalmanNav.cpp index db851221b..955e77b3e 100644 --- a/apps/examples/kalman_demo/KalmanNav.cpp +++ b/apps/examples/kalman_demo/KalmanNav.cpp @@ -247,8 +247,8 @@ void KalmanNav::update() // output if (newTimeStamp - _outTimeStamp > 10e6) { // 0.1 Hz _outTimeStamp = newTimeStamp; - printf("nav: %4d Hz, miss #: %4d\n", - _navFrames / 10, _miss / 10); + //printf("nav: %4d Hz, miss #: %4d\n", + // _navFrames / 10, _miss / 10); _navFrames = 0; _miss = 0; } diff --git a/apps/nshlib/Kconfig b/apps/nshlib/Kconfig index 92bc83cfd..d7a7b8a99 100644 --- a/apps/nshlib/Kconfig +++ b/apps/nshlib/Kconfig @@ -55,6 +55,10 @@ config NSH_DISABLE_CP bool "Disable cp" default n +config NSH_DISABLE_CMP + bool "Disable cmp" + default n + config NSH_DISABLE_DD bool "Disable dd" default n diff --git a/apps/nshlib/nsh.h b/apps/nshlib/nsh.h index 23209dba5..83cf25aa7 100644 --- a/apps/nshlib/nsh.h +++ b/apps/nshlib/nsh.h @@ -603,6 +603,9 @@ void nsh_usbtrace(void); # ifndef CONFIG_NSH_DISABLE_CP int cmd_cp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); # endif +# ifndef CONFIG_NSH_DISABLE_CMP + int cmd_cmp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); +# endif # ifndef CONFIG_NSH_DISABLE_DD int cmd_dd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); # endif diff --git a/apps/nshlib/nsh_fscmds.c b/apps/nshlib/nsh_fscmds.c index f47dca896..83717e416 100644 --- a/apps/nshlib/nsh_fscmds.c +++ b/apps/nshlib/nsh_fscmds.c @@ -1232,3 +1232,84 @@ int cmd_sh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) } #endif #endif + + +#if CONFIG_NFILE_DESCRIPTORS > 0 +#ifndef CONFIG_NSH_DISABLE_CMP +int cmd_cmp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + char *path1 = NULL; + char *path2 = NULL; + int fd1 = -1, fd2 = -1; + int ret = ERROR; + unsigned total_read = 0; + + /* Get the full path to the two files */ + + path1 = nsh_getfullpath(vtbl, argv[1]); + if (!path1) + { + goto errout; + } + + path2 = nsh_getfullpath(vtbl, argv[2]); + if (!path2) + { + goto errout; + } + + /* Open the files for reading */ + fd1 = open(path1, O_RDONLY); + if (fd1 < 0) + { + nsh_output(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO); + goto errout; + } + + fd2 = open(path2, O_RDONLY); + if (fd2 < 0) + { + nsh_output(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO); + goto errout; + } + + for (;;) + { + char buf1[128]; + char buf2[128]; + + int nbytesread1 = read(fd1, buf1, sizeof(buf1)); + int nbytesread2 = read(fd2, buf2, sizeof(buf2)); + + if (nbytesread1 < 0) + { + nsh_output(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO); + goto errout; + } + + if (nbytesread2 < 0) + { + nsh_output(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO); + goto errout; + } + + total_read += nbytesread1>nbytesread2?nbytesread2:nbytesread1; + + if (nbytesread1 != nbytesread2 || memcmp(buf1, buf2, nbytesread1) != 0) + { + nsh_output(vtbl, "files differ: byte %u\n", total_read); + goto errout; + } + + if (nbytesread1 < sizeof(buf1)) break; + } + + ret = OK; + +errout: + if (fd1 != -1) close(fd1); + if (fd2 != -1) close(fd2); + return ret; +} +#endif +#endif diff --git a/apps/nshlib/nsh_parse.c b/apps/nshlib/nsh_parse.c index f679d9b32..4d8f04b23 100644 --- a/apps/nshlib/nsh_parse.c +++ b/apps/nshlib/nsh_parse.c @@ -175,6 +175,9 @@ static const struct cmdmap_s g_cmdmap[] = # ifndef CONFIG_NSH_DISABLE_CP { "cp", cmd_cp, 3, 3, "<source-path> <dest-path>" }, # endif +# ifndef CONFIG_NSH_DISABLE_CMP + { "cmp", cmd_cmp, 3, 3, "<path1> <path2>" }, +# endif #endif #if defined (CONFIG_RTC) && !defined(CONFIG_DISABLE_CLOCK) && !defined(CONFIG_NSH_DISABLE_DATE) diff --git a/apps/px4io/Makefile b/apps/px4io/Makefile index d97f963ab..0eb3ffcf7 100644 --- a/apps/px4io/Makefile +++ b/apps/px4io/Makefile @@ -39,11 +39,19 @@ # Note that we pull a couple of specific files from the systemlib, since # we can't support it all. # -CSRCS = $(wildcard *.c) \ +CSRCS = adc.c \ + controls.c \ + dsm.c \ + i2c.c \ + px4io.c \ + registers.c \ + safety.c \ + sbus.c \ ../systemlib/hx_stream.c \ ../systemlib/perf_counter.c \ ../systemlib/up_cxxinitialize.c -CXXSRCS = $(wildcard *.cpp) + +CXXSRCS = mixer.cpp INCLUDES = $(TOPDIR)/arch/arm/src/stm32 $(TOPDIR)/arch/arm/src/common diff --git a/apps/px4io/adc.c b/apps/px4io/adc.c index e06b269dc..670b8d635 100644 --- a/apps/px4io/adc.c +++ b/apps/px4io/adc.c @@ -154,7 +154,7 @@ adc_measure(unsigned channel) while (!(rSR & ADC_SR_EOC)) { /* never spin forever - this will give a bogus result though */ - if ((hrt_absolute_time() - now) > 1000) { + if (hrt_elapsed_time(&now) > 1000) { debug("adc timeout"); break; } diff --git a/apps/px4io/comms.c b/apps/px4io/comms.c deleted file mode 100644 index e51c2771a..000000000 --- a/apps/px4io/comms.c +++ /dev/null @@ -1,329 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 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 - * - * FMU communication for the PX4IO module. - */ - -#include <nuttx/config.h> -#include <stdio.h> -#include <stdbool.h> -#include <fcntl.h> -#include <unistd.h> -#include <debug.h> -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <poll.h> -#include <termios.h> - -#include <nuttx/clock.h> - -#include <drivers/drv_hrt.h> -#include <drivers/drv_pwm_output.h> -#include <systemlib/hx_stream.h> -#include <systemlib/perf_counter.h> - -#define DEBUG -#include "px4io.h" - -#define FMU_MIN_REPORT_INTERVAL 5000 /* 5ms */ -#define FMU_MAX_REPORT_INTERVAL 100000 /* 100ms */ - -#define FMU_STATUS_INTERVAL 1000000 /* 100ms */ - -static int fmu_fd; -static hx_stream_t stream; -static struct px4io_report report; - -static void comms_handle_frame(void *arg, const void *buffer, size_t length); - -perf_counter_t comms_rx_errors; - -static void -comms_init(void) -{ - /* initialise the FMU interface */ - fmu_fd = open("/dev/ttyS1", O_RDWR); - stream = hx_stream_init(fmu_fd, comms_handle_frame, NULL); - - comms_rx_errors = perf_alloc(PC_COUNT, "rx_err"); - hx_stream_set_counters(stream, 0, 0, comms_rx_errors); - - /* default state in the report to FMU */ - report.i2f_magic = I2F_MAGIC; - - struct termios t; - - /* 115200bps, no parity, one stop bit */ - tcgetattr(fmu_fd, &t); - cfsetspeed(&t, 115200); - t.c_cflag &= ~(CSTOPB | PARENB); - tcsetattr(fmu_fd, TCSANOW, &t); - - /* init the ADC */ - adc_init(); -} - -void -comms_main(void) -{ - comms_init(); - - struct pollfd fds; - fds.fd = fmu_fd; - fds.events = POLLIN; - debug("FMU: ready"); - - for (;;) { - /* wait for serial data, but no more than 10ms */ - poll(&fds, 1, 10); - - /* - * Pull bytes from FMU and feed them to the HX engine. - * Limit the number of bytes we actually process on any one iteration. - */ - if (fds.revents & POLLIN) { - char buf[32]; - ssize_t count = read(fmu_fd, buf, sizeof(buf)); - - for (int i = 0; i < count; i++) - hx_stream_rx(stream, buf[i]); - } - - /* - * Decide if it's time to send an update to the FMU. - */ - static hrt_abstime last_report_time; - hrt_abstime now, delta; - - /* should we send a report to the FMU? */ - now = hrt_absolute_time(); - delta = now - last_report_time; - - if ((delta > FMU_MIN_REPORT_INTERVAL) && - (system_state.fmu_report_due || (delta > FMU_MAX_REPORT_INTERVAL))) { - - system_state.fmu_report_due = false; - last_report_time = now; - - /* populate the report */ - for (unsigned i = 0; i < system_state.rc_channels; i++) { - report.rc_channel[i] = system_state.rc_channel_data[i]; - } - - report.channel_count = system_state.rc_channels; - report.armed = system_state.armed; - - report.battery_mv = system_state.battery_mv; - report.adc_in = system_state.adc_in5; - report.overcurrent = system_state.overcurrent; - - /* and send it */ - hx_stream_send(stream, &report, sizeof(report)); - } - - /* - * Fetch ADC values, check overcurrent flags, etc. - */ - static hrt_abstime last_status_time; - - if ((now - last_status_time) > FMU_STATUS_INTERVAL) { - - /* - * Coefficients here derived by measurement of the 5-16V - * range on one unit: - * - * V counts - * 5 1001 - * 6 1219 - * 7 1436 - * 8 1653 - * 9 1870 - * 10 2086 - * 11 2303 - * 12 2522 - * 13 2738 - * 14 2956 - * 15 3172 - * 16 3389 - * - * slope = 0.0046067 - * intercept = 0.3863 - * - * Intercept corrected for best results @ 12V. - */ - unsigned counts = adc_measure(ADC_VBATT); - system_state.battery_mv = (4150 + (counts * 46)) / 10; - - system_state.adc_in5 = adc_measure(ADC_IN5); - - system_state.overcurrent = - (OVERCURRENT_SERVO ? (1 << 0) : 0) | - (OVERCURRENT_ACC ? (1 << 1) : 0); - - last_status_time = now; - } - } -} - -static void -comms_handle_config(const void *buffer, size_t length) -{ - const struct px4io_config *cfg = (struct px4io_config *)buffer; - - if (length != sizeof(*cfg)) - return; - - /* fetch the rc mappings */ - for (unsigned i = 0; i < 4; i++) { - system_state.rc_map[i] = cfg->rc_map[i]; - } - - /* fetch the rc channel attributes */ - for (unsigned i = 0; i < 4; i++) { - system_state.rc_min[i] = cfg->rc_min[i]; - system_state.rc_trim[i] = cfg->rc_trim[i]; - system_state.rc_max[i] = cfg->rc_max[i]; - system_state.rc_rev[i] = cfg->rc_rev[i]; - system_state.rc_dz[i] = cfg->rc_dz[i]; - } -} - -static void -comms_handle_command(const void *buffer, size_t length) -{ - const struct px4io_command *cmd = (struct px4io_command *)buffer; - - if (length != sizeof(*cmd)) - return; - - irqstate_t flags = irqsave(); - - /* fetch new PWM output values */ - for (unsigned i = 0; i < PX4IO_CONTROL_CHANNELS; i++) - system_state.fmu_channel_data[i] = cmd->output_control[i]; - - /* if the IO is armed and the FMU gets disarmed, the IO must also disarm */ - if (system_state.arm_ok && !cmd->arm_ok) - system_state.armed = false; - - system_state.arm_ok = cmd->arm_ok; - system_state.vector_flight_mode_ok = cmd->vector_flight_mode_ok; - system_state.manual_override_ok = cmd->manual_override_ok; - system_state.mixer_fmu_available = true; - system_state.fmu_data_received_time = hrt_absolute_time(); - - /* set PWM update rate if changed (after limiting) */ - uint16_t new_servo_rate = cmd->servo_rate; - - /* reject faster than 500 Hz updates */ - if (new_servo_rate > 500) { - new_servo_rate = 500; - } - - /* reject slower than 50 Hz updates */ - if (new_servo_rate < 50) { - new_servo_rate = 50; - } - - if (system_state.servo_rate != new_servo_rate) { - up_pwm_servo_set_rate(new_servo_rate); - system_state.servo_rate = new_servo_rate; - } - - /* - * update servo values immediately. - * the updates are done in addition also - * in the mainloop, since this function will only - * update with a connected FMU. - */ - mixer_tick(); - - /* handle relay state changes here */ - for (unsigned i = 0; i < PX4IO_RELAY_CHANNELS; i++) { - if (system_state.relays[i] != cmd->relay_state[i]) { - switch (i) { - case 0: - POWER_ACC1(cmd->relay_state[i]); - break; - - case 1: - POWER_ACC2(cmd->relay_state[i]); - break; - - case 2: - POWER_RELAY1(cmd->relay_state[i]); - break; - - case 3: - POWER_RELAY2(cmd->relay_state[i]); - break; - } - } - - system_state.relays[i] = cmd->relay_state[i]; - } - - irqrestore(flags); -} - -static void -comms_handle_frame(void *arg, const void *buffer, size_t length) -{ - const uint16_t *type = (const uint16_t *)buffer; - - - /* make sure it's what we are expecting */ - if (length > 2) { - switch (*type) { - case F2I_MAGIC: - comms_handle_command(buffer, length); - break; - - case F2I_CONFIG_MAGIC: - comms_handle_config(buffer, length); - break; - - case F2I_MIXER_MAGIC: - mixer_handle_text(buffer, length); - break; - - default: - break; - } - } -} - diff --git a/apps/px4io/controls.c b/apps/px4io/controls.c index 169d5bb81..6b5164756 100644 --- a/apps/px4io/controls.c +++ b/apps/px4io/controls.c @@ -37,148 +37,281 @@ * R/C inputs and servo outputs. */ - #include <nuttx/config.h> -#include <stdio.h> #include <stdbool.h> -#include <fcntl.h> -#include <unistd.h> -#include <debug.h> -#include <stdlib.h> -#include <errno.h> -#include <termios.h> -#include <string.h> -#include <poll.h> - -#include <nuttx/clock.h> #include <drivers/drv_hrt.h> -#include <systemlib/hx_stream.h> #include <systemlib/perf_counter.h> #include <systemlib/ppm_decode.h> -#define DEBUG #include "px4io.h" #define RC_FAILSAFE_TIMEOUT 2000000 /**< two seconds failsafe timeout */ -#define RC_CHANNEL_HIGH_THRESH 1700 -#define RC_CHANNEL_LOW_THRESH 1300 +#define RC_CHANNEL_HIGH_THRESH 5000 +#define RC_CHANNEL_LOW_THRESH -5000 + +static bool ppm_input(uint16_t *values, uint16_t *num_values); -static void ppm_input(void); +static perf_counter_t c_gather_dsm; +static perf_counter_t c_gather_sbus; +static perf_counter_t c_gather_ppm; void -controls_main(void) +controls_init(void) { - struct pollfd fds[2]; - /* DSM input */ - fds[0].fd = dsm_init("/dev/ttyS0"); - fds[0].events = POLLIN; + dsm_init("/dev/ttyS0"); /* S.bus input */ - fds[1].fd = sbus_init("/dev/ttyS2"); - fds[1].events = POLLIN; + sbus_init("/dev/ttyS2"); + + /* default to a 1:1 input map, all enabled */ + for (unsigned i = 0; i < MAX_CONTROL_CHANNELS; i++) { + unsigned base = PX4IO_P_RC_CONFIG_STRIDE * i; + + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_OPTIONS] = 0; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_MIN] = 1000; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_CENTER] = 1500; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_MAX] = 2000; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_DEADZONE] = 30; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_ASSIGNMENT] = i; + r_page_rc_input_config[base + PX4IO_P_RC_CONFIG_OPTIONS] = PX4IO_P_RC_CONFIG_OPTIONS_ENABLED; + } + + c_gather_dsm = perf_alloc(PC_ELAPSED, "c_gather_dsm"); + c_gather_sbus = perf_alloc(PC_ELAPSED, "c_gather_sbus"); + c_gather_ppm = perf_alloc(PC_ELAPSED, "c_gather_ppm"); +} + +void +controls_tick() { + + /* + * Gather R/C control inputs from supported sources. + * + * Note that if you're silly enough to connect more than + * one control input source, they're going to fight each + * other. Don't do that. + */ + + perf_begin(c_gather_dsm); + bool dsm_updated = dsm_input(r_raw_rc_values, &r_raw_rc_count); + if (dsm_updated) + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_DSM; + perf_end(c_gather_dsm); + + perf_begin(c_gather_sbus); + bool sbus_updated = sbus_input(r_raw_rc_values, &r_raw_rc_count); + if (sbus_updated) + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_SBUS; + perf_end(c_gather_sbus); + + /* + * XXX each S.bus frame will cause a PPM decoder interrupt + * storm (lots of edges). It might be sensible to actually + * disable the PPM decoder completely if we have S.bus signal. + */ + perf_begin(c_gather_ppm); + bool ppm_updated = ppm_input(r_raw_rc_values, &r_raw_rc_count); + if (ppm_updated) + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_PPM; + perf_end(c_gather_ppm); + + ASSERT(r_raw_rc_count <= MAX_CONTROL_CHANNELS); + + + /* + * In some cases we may have received a frame, but input has still + * been lost. + */ + bool rc_input_lost = false; + + /* + * If we received a new frame from any of the RC sources, process it. + */ + if (dsm_updated || sbus_updated || ppm_updated) { + + /* update RC-received timestamp */ + system_state.rc_channels_timestamp = hrt_absolute_time(); + + /* record a bitmask of channels assigned */ + unsigned assigned_channels = 0; + + /* map raw inputs to mapped inputs */ + /* XXX mapping should be atomic relative to protocol */ + for (unsigned i = 0; i < r_raw_rc_count; i++) { + + /* map the input channel */ + uint16_t *conf = &r_page_rc_input_config[i * PX4IO_P_RC_CONFIG_STRIDE]; + + if (conf[PX4IO_P_RC_CONFIG_OPTIONS] & PX4IO_P_RC_CONFIG_OPTIONS_ENABLED) { + + uint16_t raw = r_raw_rc_values[i]; + + /* implement the deadzone */ + if (raw < conf[PX4IO_P_RC_CONFIG_CENTER]) { + raw += conf[PX4IO_P_RC_CONFIG_DEADZONE]; + if (raw > conf[PX4IO_P_RC_CONFIG_CENTER]) + raw = conf[PX4IO_P_RC_CONFIG_CENTER]; + } + if (raw > conf[PX4IO_P_RC_CONFIG_CENTER]) { + raw -= conf[PX4IO_P_RC_CONFIG_DEADZONE]; + if (raw < conf[PX4IO_P_RC_CONFIG_CENTER]) + raw = conf[PX4IO_P_RC_CONFIG_CENTER]; + } + + /* constrain to min/max values */ + if (raw < conf[PX4IO_P_RC_CONFIG_MIN]) + raw = conf[PX4IO_P_RC_CONFIG_MIN]; + if (raw > conf[PX4IO_P_RC_CONFIG_MAX]) + raw = conf[PX4IO_P_RC_CONFIG_MAX]; + + int16_t scaled = raw; + + /* adjust to zero-relative (-500..500) */ + scaled -= 1500; + + /* scale to fixed-point representation (-10000..10000) */ + scaled *= 20; + + ASSERT(scaled >= -15000); + ASSERT(scaled <= 15000); - for (;;) { - /* run this loop at ~100Hz */ - poll(fds, 2, 10); + if (conf[PX4IO_P_RC_CONFIG_OPTIONS] & PX4IO_P_RC_CONFIG_OPTIONS_REVERSE) + scaled = -scaled; + + /* and update the scaled/mapped version */ + unsigned mapped = conf[PX4IO_P_RC_CONFIG_ASSIGNMENT]; + ASSERT(mapped < MAX_CONTROL_CHANNELS); + + r_rc_values[mapped] = SIGNED_TO_REG(scaled); + assigned_channels |= (1 << mapped); + } + } + + /* set un-assigned controls to zero */ + for (unsigned i = 0; i < MAX_CONTROL_CHANNELS; i++) { + if (!(assigned_channels & (1 << i))) + r_rc_values[i] = 0; + } /* - * Gather R/C control inputs from supported sources. + * If we got an update with zero channels, treat it as + * a loss of input. * - * Note that if you're silly enough to connect more than - * one control input source, they're going to fight each - * other. Don't do that. + * This might happen if a protocol-based receiver returns an update + * that contains no channels that we have mapped. */ - bool locked = false; + if (assigned_channels == 0) { + rc_input_lost = true; + } else { + r_status_flags |= PX4IO_P_STATUS_FLAGS_RC_OK; + } /* - * Store RC channel count to detect switch to RC loss sooner - * than just by timeout + * Export the valid channel bitmap */ - unsigned rc_channels = system_state.rc_channels; + r_rc_valid = assigned_channels; + } + + /* + * If we haven't seen any new control data in 200ms, assume we + * have lost input. + */ + if (hrt_elapsed_time(&system_state.rc_channels_timestamp) > 200000) { + rc_input_lost = true; + + /* clear the input-kind flags here */ + r_status_flags &= ~( + PX4IO_P_STATUS_FLAGS_RC_PPM | + PX4IO_P_STATUS_FLAGS_RC_DSM | + PX4IO_P_STATUS_FLAGS_RC_SBUS); + } + + /* + * Handle losing RC input + */ + if (rc_input_lost) { - if (fds[0].revents & POLLIN) - locked |= dsm_input(); + /* Clear the RC input status flag, clear manual override flag */ + r_status_flags &= ~( + PX4IO_P_STATUS_FLAGS_OVERRIDE | + PX4IO_P_STATUS_FLAGS_RC_OK); - if (fds[1].revents & POLLIN) - locked |= sbus_input(); + /* Set the RC_LOST alarm */ + r_status_alarms |= PX4IO_P_STATUS_ALARMS_RC_LOST; + + /* Mark the arrays as empty */ + r_raw_rc_count = 0; + r_rc_valid = 0; + } + + /* + * Check for manual override. + * + * The PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK flag must be set, and we + * must have R/C input. + * Override is enabled if either the hardcoded channel / value combination + * is selected, or the AP has requested it. + */ + if ((r_setup_arming & PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK) && + (r_status_flags & PX4IO_P_STATUS_FLAGS_RC_OK)) { + + bool override = false; /* - * If we don't have lock from one of the serial receivers, - * look for PPM. It shares an input with S.bus, so there's - * a possibility it will mis-parse an S.bus frame. + * Check mapped channel 5; if the value is 'high' then the pilot has + * requested override. * - * XXX each S.bus frame will cause a PPM decoder interrupt - * storm (lots of edges). It might be sensible to actually - * disable the PPM decoder completely if we have an alternate - * receiver lock. + * XXX This should be configurable. */ - if (!locked) - ppm_input(); + if ((r_status_flags & PX4IO_P_STATUS_FLAGS_RC_OK) && (r_rc_values[4] > RC_CHANNEL_HIGH_THRESH)) + override = true; - /* check for manual override status */ - if (system_state.rc_channel_data[4] > RC_CHANNEL_HIGH_THRESH) { - /* force manual input override */ - system_state.mixer_manual_override = true; + if (override) { - } else { - /* override not engaged, use FMU */ - system_state.mixer_manual_override = false; - } + r_status_flags |= PX4IO_P_STATUS_FLAGS_OVERRIDE; - /* - * If we haven't seen any new control data in 200ms, assume we - * have lost input and tell FMU. - */ - if ((hrt_absolute_time() - system_state.rc_channels_timestamp) > 200000) { - - if (system_state.rc_channels > 0) { - /* - * If the RC signal status (lost / present) has - * just changed, request an update immediately. - */ - system_state.fmu_report_due = true; - } + /* mix new RC input control values to servos */ + if (dsm_updated || sbus_updated || ppm_updated) + mixer_tick(); - /* set the number of channels to zero - no inputs */ - system_state.rc_channels = 0; + } else { + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_OVERRIDE; } - - /* - * PWM output updates are performed in addition on each comm update. - * the updates here are required to ensure operation if FMU is not started - * or stopped responding. - */ - mixer_tick(); } } -static void -ppm_input(void) +static bool +ppm_input(uint16_t *values, uint16_t *num_values) { + bool result = false; + + /* avoid racing with PPM updates */ + irqstate_t state = irqsave(); + /* - * Look for new PPM input. + * If we have received a new PPM frame within the last 200ms, accept it + * and then invalidate it. */ - if (ppm_last_valid_decode != 0) { - - /* avoid racing with PPM updates */ - irqstate_t state = irqsave(); + if (hrt_elapsed_time(&ppm_last_valid_decode) < 200000) { /* PPM data exists, copy it */ - system_state.rc_channels = ppm_decoded_channels; + *num_values = ppm_decoded_channels; + if (*num_values > MAX_CONTROL_CHANNELS) + *num_values = MAX_CONTROL_CHANNELS; - for (unsigned i = 0; i < ppm_decoded_channels; i++) { - system_state.rc_channel_data[i] = ppm_buffer[i]; - } + for (unsigned i = 0; i < *num_values; i++) + values[i] = ppm_buffer[i]; - /* copy the timestamp and clear it */ - system_state.rc_channels_timestamp = ppm_last_valid_decode; + /* clear validity */ ppm_last_valid_decode = 0; - irqrestore(state); - - /* trigger an immediate report to the FMU */ - system_state.fmu_report_due = true; + /* good if we got any channels */ + result = (*num_values > 0); } + + irqrestore(state); + + return result; } diff --git a/apps/px4io/dsm.c b/apps/px4io/dsm.c index 869c27b1b..ea35e5513 100644 --- a/apps/px4io/dsm.c +++ b/apps/px4io/dsm.c @@ -43,17 +43,13 @@ #include <fcntl.h> #include <unistd.h> -#include <string.h> #include <termios.h> -#include <systemlib/ppm_decode.h> - #include <drivers/drv_hrt.h> #define DEBUG #include "px4io.h" -#include "protocol.h" #define DSM_FRAME_SIZE 16 #define DSM_FRAME_CHANNELS 7 @@ -72,13 +68,13 @@ unsigned dsm_frame_drops; static bool dsm_decode_channel(uint16_t raw, unsigned shift, unsigned *channel, unsigned *value); static void dsm_guess_format(bool reset); -static void dsm_decode(hrt_abstime now); +static bool dsm_decode(hrt_abstime now, uint16_t *values, uint16_t *num_values); int dsm_init(const char *device) { if (dsm_fd < 0) - dsm_fd = open(device, O_RDONLY); + dsm_fd = open(device, O_RDONLY | O_NONBLOCK); if (dsm_fd >= 0) { struct termios t; @@ -106,7 +102,7 @@ dsm_init(const char *device) } bool -dsm_input(void) +dsm_input(uint16_t *values, uint16_t *num_values) { ssize_t ret; hrt_abstime now; @@ -143,7 +139,7 @@ dsm_input(void) /* if the read failed for any reason, just give up here */ if (ret < 1) - goto out; + return false; last_rx_time = now; @@ -156,20 +152,14 @@ dsm_input(void) * If we don't have a full frame, return */ if (partial_frame_count < DSM_FRAME_SIZE) - goto out; + return false; /* * Great, it looks like we might have a frame. Go ahead and * decode it. */ - dsm_decode(now); partial_frame_count = 0; - -out: - /* - * If we have seen a frame in the last 200ms, we consider ourselves 'locked' - */ - return (now - last_frame_time) < 200000; + return dsm_decode(now, values, num_values); } static bool @@ -259,23 +249,23 @@ dsm_guess_format(bool reset) if ((votes11 == 1) && (votes10 == 0)) { channel_shift = 11; - debug("DSM: detected 11-bit format"); + debug("DSM: 11-bit format"); return; } if ((votes10 == 1) && (votes11 == 0)) { channel_shift = 10; - debug("DSM: detected 10-bit format"); + debug("DSM: 10-bit format"); return; } /* call ourselves to reset our state ... we have to try again */ - debug("DSM: format detector failed, 10: 0x%08x %d 11: 0x%08x %d", cs10, votes10, cs11, votes11); + debug("DSM: format detect fail, 10: 0x%08x %d 11: 0x%08x %d", cs10, votes10, cs11, votes11); dsm_guess_format(true); } -static void -dsm_decode(hrt_abstime frame_time) +static bool +dsm_decode(hrt_abstime frame_time, uint16_t *values, uint16_t *num_values) { /* @@ -296,7 +286,7 @@ dsm_decode(hrt_abstime frame_time) /* if we don't know the frame format, update the guessing state machine */ if (channel_shift == 0) { dsm_guess_format(false); - return; + return false; } /* @@ -324,8 +314,8 @@ dsm_decode(hrt_abstime frame_time) continue; /* update the decoded channel count */ - if (channel >= system_state.rc_channels) - system_state.rc_channels = channel + 1; + if (channel >= *num_values) + *num_values = channel + 1; /* convert 0-1024 / 0-2048 values to 1000-2000 ppm encoding in a very sloppy fashion */ if (channel_shift == 11) @@ -356,13 +346,11 @@ dsm_decode(hrt_abstime frame_time) break; } - system_state.rc_channel_data[channel] = value; + values[channel] = value; } - /* and note that we have received data from the R/C controller */ - /* XXX failsafe will cause problems here - need a strategy for detecting it */ - system_state.rc_channels_timestamp = frame_time; - - /* trigger an immediate report to the FMU */ - system_state.fmu_report_due = true; + /* + * XXX Note that we may be in failsafe here; we need to work out how to detect that. + */ + return true; } diff --git a/apps/px4io/i2c.c b/apps/px4io/i2c.c new file mode 100644 index 000000000..4485daa5b --- /dev/null +++ b/apps/px4io/i2c.c @@ -0,0 +1,340 @@ +/**************************************************************************** + * + * Copyright (C) 2012 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 i2c.c + * + * I2C communication for the PX4IO module. + */ + +#include <stdint.h> + +#include <nuttx/arch.h> +#include <arch/board/board.h> +#include <stm32_i2c.h> +#include <stm32_dma.h> + +//#define DEBUG +#include "px4io.h" + +/* + * I2C register definitions. + */ +#define I2C_BASE STM32_I2C1_BASE + +#define REG(_reg) (*(volatile uint32_t *)(I2C_BASE + _reg)) + +#define rCR1 REG(STM32_I2C_CR1_OFFSET) +#define rCR2 REG(STM32_I2C_CR2_OFFSET) +#define rOAR1 REG(STM32_I2C_OAR1_OFFSET) +#define rOAR2 REG(STM32_I2C_OAR2_OFFSET) +#define rDR REG(STM32_I2C_DR_OFFSET) +#define rSR1 REG(STM32_I2C_SR1_OFFSET) +#define rSR2 REG(STM32_I2C_SR2_OFFSET) +#define rCCR REG(STM32_I2C_CCR_OFFSET) +#define rTRISE REG(STM32_I2C_TRISE_OFFSET) + +static int i2c_interrupt(int irq, void *context); +static void i2c_rx_setup(void); +static void i2c_tx_setup(void); +static void i2c_rx_complete(void); +static void i2c_tx_complete(void); + +static DMA_HANDLE rx_dma; +static DMA_HANDLE tx_dma; + +static uint8_t rx_buf[68]; +static unsigned rx_len; + +static const uint8_t junk_buf[] = { 0xff, 0xff, 0xff, 0xff }; + +static const uint8_t *tx_buf = junk_buf; +static unsigned tx_len = sizeof(junk_buf); +unsigned tx_count; + +static uint8_t selected_page; +static uint8_t selected_offset; + +enum { + DIR_NONE = 0, + DIR_TX = 1, + DIR_RX = 2 +} direction; + +void +i2c_init(void) +{ + debug("i2c init"); + + /* allocate DMA handles and initialise DMA */ + rx_dma = stm32_dmachannel(DMACHAN_I2C1_RX); + i2c_rx_setup(); + tx_dma = stm32_dmachannel(DMACHAN_I2C1_TX); + i2c_tx_setup(); + + /* enable the i2c block clock and reset it */ + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_I2C1EN); + modifyreg32(STM32_RCC_APB1RSTR, 0, RCC_APB1RSTR_I2C1RST); + modifyreg32(STM32_RCC_APB1RSTR, RCC_APB1RSTR_I2C1RST, 0); + + /* configure the i2c GPIOs */ + stm32_configgpio(GPIO_I2C1_SCL); + stm32_configgpio(GPIO_I2C1_SDA); + + /* soft-reset the block */ + rCR1 |= I2C_CR1_SWRST; + rCR1 = 0; + + /* set for DMA operation */ + rCR2 |= I2C_CR2_ITEVFEN |I2C_CR2_ITERREN | I2C_CR2_DMAEN; + + /* set the frequency value in CR2 */ + rCR2 &= ~I2C_CR2_FREQ_MASK; + rCR2 |= STM32_PCLK1_FREQUENCY / 1000000; + + /* set divisor and risetime for fast mode */ + uint16_t result = STM32_PCLK1_FREQUENCY / (400000 * 25); + if (result < 1) + result = 1; + result = 3; + rCCR &= ~I2C_CCR_CCR_MASK; + rCCR |= I2C_CCR_DUTY | I2C_CCR_FS | result; + rTRISE = (uint16_t)((((STM32_PCLK1_FREQUENCY / 1000000) * 300) / 1000) + 1); + + /* set our device address */ + rOAR1 = 0x1a << 1; + + /* enable event interrupts */ + irq_attach(STM32_IRQ_I2C1EV, i2c_interrupt); + irq_attach(STM32_IRQ_I2C1ER, i2c_interrupt); + up_enable_irq(STM32_IRQ_I2C1EV); + up_enable_irq(STM32_IRQ_I2C1ER); + + /* and enable the I2C port */ + rCR1 |= I2C_CR1_ACK | I2C_CR1_PE; + +#ifdef DEBUG + i2c_dump(); +#endif +} + + +/* + reset the I2C bus + used to recover from lockups + */ +void i2c_reset(void) +{ + rCR1 |= I2C_CR1_SWRST; + rCR1 = 0; + + /* set for DMA operation */ + rCR2 |= I2C_CR2_ITEVFEN |I2C_CR2_ITERREN | I2C_CR2_DMAEN; + + /* set the frequency value in CR2 */ + rCR2 &= ~I2C_CR2_FREQ_MASK; + rCR2 |= STM32_PCLK1_FREQUENCY / 1000000; + + /* set divisor and risetime for fast mode */ + uint16_t result = STM32_PCLK1_FREQUENCY / (400000 * 25); + if (result < 1) + result = 1; + result = 3; + rCCR &= ~I2C_CCR_CCR_MASK; + rCCR |= I2C_CCR_DUTY | I2C_CCR_FS | result; + rTRISE = (uint16_t)((((STM32_PCLK1_FREQUENCY / 1000000) * 300) / 1000) + 1); + + /* set our device address */ + rOAR1 = 0x1a << 1; + + /* and enable the I2C port */ + rCR1 |= I2C_CR1_ACK | I2C_CR1_PE; +} + +static int +i2c_interrupt(int irq, FAR void *context) +{ + uint16_t sr1 = rSR1; + + if (sr1 & (I2C_SR1_STOPF | I2C_SR1_AF | I2C_SR1_ADDR)) { + + if (sr1 & I2C_SR1_STOPF) { + /* write to CR1 to clear STOPF */ + (void)rSR1; /* as recommended, re-read SR1 */ + rCR1 |= I2C_CR1_PE; + } + + /* DMA never stops, so we should do that now */ + switch (direction) { + case DIR_TX: + i2c_tx_complete(); + break; + case DIR_RX: + i2c_rx_complete(); + break; + default: + /* not currently transferring - must be a new txn */ + break; + } + direction = DIR_NONE; + } + + if (sr1 & I2C_SR1_ADDR) { + + /* clear ADDR to ack our selection and get direction */ + (void)rSR1; /* as recommended, re-read SR1 */ + uint16_t sr2 = rSR2; + + if (sr2 & I2C_SR2_TRA) { + /* we are the transmitter */ + + direction = DIR_TX; + + } else { + /* we are the receiver */ + + direction = DIR_RX; + } + } + + /* clear any errors that might need it (this handles AF as well */ + if (sr1 & I2C_SR1_ERRORMASK) + rSR1 = 0; + + return 0; +} + +static void +i2c_rx_setup(void) +{ + /* + * Note that we configure DMA in circular mode; this means that a too-long + * transfer will overwrite the buffer, but that avoids us having to deal with + * bailing out of a transaction while the master is still babbling at us. + */ + rx_len = 0; + stm32_dmasetup(rx_dma, (uintptr_t)&rDR, (uintptr_t)&rx_buf[0], sizeof(rx_buf), + DMA_CCR_CIRC | + DMA_CCR_MINC | + DMA_CCR_PSIZE_32BITS | + DMA_CCR_MSIZE_8BITS | + DMA_CCR_PRIMED); + + stm32_dmastart(rx_dma, NULL, NULL, false); +} + +static void +i2c_rx_complete(void) +{ + rx_len = sizeof(rx_buf) - stm32_dmaresidual(rx_dma); + stm32_dmastop(rx_dma); + + if (rx_len >= 2) { + selected_page = rx_buf[0]; + selected_offset = rx_buf[1]; + + /* work out how many registers are being written */ + unsigned count = (rx_len - 2) / 2; + if (count > 0) { + registers_set(selected_page, selected_offset, (const uint16_t *)&rx_buf[2], count); + } else { + /* no registers written, must be an address cycle */ + uint16_t *regs; + unsigned reg_count; + + /* work out which registers are being addressed */ + int ret = registers_get(selected_page, selected_offset, ®s, ®_count); + if (ret == 0) { + tx_buf = (uint8_t *)regs; + tx_len = reg_count * 2; + } else { + tx_buf = junk_buf; + tx_len = sizeof(junk_buf); + } + + /* disable interrupts while reconfiguring DMA for the selected registers */ + irqstate_t flags = irqsave(); + + stm32_dmastop(tx_dma); + i2c_tx_setup(); + + irqrestore(flags); + } + } + + /* prepare for the next transaction */ + i2c_rx_setup(); +} + +static void +i2c_tx_setup(void) +{ + /* + * Note that we configure DMA in circular mode; this means that a too-long + * transfer will copy the buffer more than once, but that avoids us having + * to deal with bailing out of a transaction while the master is still + * babbling at us. + */ + stm32_dmasetup(tx_dma, (uintptr_t)&rDR, (uintptr_t)&tx_buf[0], tx_len, + DMA_CCR_DIR | + DMA_CCR_CIRC | + DMA_CCR_MINC | + DMA_CCR_PSIZE_8BITS | + DMA_CCR_MSIZE_8BITS | + DMA_CCR_PRIMED); + + stm32_dmastart(tx_dma, NULL, NULL, false); +} + +static void +i2c_tx_complete(void) +{ + tx_count = tx_len - stm32_dmaresidual(tx_dma); + stm32_dmastop(tx_dma); + + /* for debug purposes, save the length of the last transmit as seen by the DMA */ + + /* leave tx_buf/tx_len alone, so that a retry will see the same data */ + + /* prepare for the next transaction */ + i2c_tx_setup(); +} + +void +i2c_dump(void) +{ + debug("CR1 0x%08x CR2 0x%08x", rCR1, rCR2); + debug("OAR1 0x%08x OAR2 0x%08x", rOAR1, rOAR2); + debug("CCR 0x%08x TRISE 0x%08x", rCCR, rTRISE); + debug("SR1 0x%08x SR2 0x%08x", rSR1, rSR2); +} diff --git a/apps/px4io/mixer.cpp b/apps/px4io/mixer.cpp index 8e00781a0..77f28cd7a 100644 --- a/apps/px4io/mixer.cpp +++ b/apps/px4io/mixer.cpp @@ -38,22 +38,13 @@ */ #include <nuttx/config.h> -#include <nuttx/arch.h> #include <sys/types.h> #include <stdbool.h> #include <string.h> -#include <assert.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <sched.h> - -#include <debug.h> #include <drivers/drv_pwm_output.h> #include <drivers/drv_hrt.h> -#include <drivers/device/device.h> #include <systemlib/mixer/mixer.h> @@ -75,13 +66,16 @@ extern "C" { #define OVERRIDE 4 /* current servo arm/disarm state */ -bool mixer_servos_armed = false; +static bool mixer_servos_armed = false; /* selected control values and count for mixing */ -static uint16_t *control_values; -static int control_count; - -static uint16_t rc_channel_data[PX4IO_INPUT_CHANNELS]; +enum mixer_source { + MIX_NONE, + MIX_FMU, + MIX_OVERRIDE, + MIX_FAILSAFE +}; +static mixer_source source; static int mixer_callback(uintptr_t handle, uint8_t control_group, @@ -93,87 +87,56 @@ static MixerGroup mixer_group(mixer_callback, 0); void mixer_tick(void) { - bool should_arm; - /* check that we are receiving fresh data from the FMU */ - if ((hrt_absolute_time() - system_state.fmu_data_received_time) > FMU_INPUT_DROP_LIMIT_US) { - /* too many frames without FMU input, time to go to failsafe */ - system_state.mixer_manual_override = true; - system_state.mixer_fmu_available = false; + if (hrt_elapsed_time(&system_state.fmu_data_received_time) > FMU_INPUT_DROP_LIMIT_US) { + + /* too long without FMU input, time to go to failsafe */ + if (r_status_flags & PX4IO_P_STATUS_FLAGS_FMU_OK) { + debug("AP RX timeout"); + } + r_status_flags |= PX4IO_P_STATUS_FLAGS_OVERRIDE; + r_status_flags &= ~(PX4IO_P_STATUS_FLAGS_FMU_OK | PX4IO_P_STATUS_FLAGS_RAW_PWM); + r_status_alarms |= PX4IO_P_STATUS_ALARMS_FMU_LOST; } + source = MIX_FAILSAFE; + /* - * Decide which set of inputs we're using. + * Decide which set of controls we're using. */ - - /* this is for planes, where manual override makes sense */ - if (system_state.manual_override_ok) { - /* if everything is ok */ - if (!system_state.mixer_manual_override && system_state.mixer_fmu_available) { - /* we have recent control data from the FMU */ - control_count = PX4IO_CONTROL_CHANNELS; - control_values = &system_state.fmu_channel_data[0]; - - } else if (system_state.rc_channels > 0) { - /* when override is on or the fmu is not available, but RC is present */ - control_count = system_state.rc_channels; - - sched_lock(); - - /* remap roll, pitch, yaw and throttle from RC specific to internal ordering */ - rc_channel_data[ROLL] = system_state.rc_channel_data[system_state.rc_map[ROLL] - 1]; - rc_channel_data[PITCH] = system_state.rc_channel_data[system_state.rc_map[PITCH] - 1]; - rc_channel_data[YAW] = system_state.rc_channel_data[system_state.rc_map[YAW] - 1]; - rc_channel_data[THROTTLE] = system_state.rc_channel_data[system_state.rc_map[THROTTLE] - 1]; - //rc_channel_data[OVERRIDE] = system_state.rc_channel_data[system_state.rc_map[OVERRIDE] - 1]; - - /* get the remaining channels, no remapping needed */ - for (unsigned i = 4; i < system_state.rc_channels; i++) { - rc_channel_data[i] = system_state.rc_channel_data[i]; - } - - /* scale the control inputs */ - rc_channel_data[THROTTLE] = ((float)(rc_channel_data[THROTTLE] - system_state.rc_min[THROTTLE]) / - (float)(system_state.rc_max[THROTTLE] - system_state.rc_min[THROTTLE])) * 1000.0f + 1000; - - if (rc_channel_data[THROTTLE] > 2000) { - rc_channel_data[THROTTLE] = 2000; - } - - if (rc_channel_data[THROTTLE] < 1000) { - rc_channel_data[THROTTLE] = 1000; - } - - // lowsyslog("Tmin: %d Ttrim: %d Tmax: %d T: %d \n", - // (int)(system_state.rc_min[THROTTLE]), (int)(system_state.rc_trim[THROTTLE]), - // (int)(system_state.rc_max[THROTTLE]), (int)(rc_channel_data[THROTTLE])); - - control_values = &rc_channel_data[0]; - sched_unlock(); - } else { - /* we have no control input (no FMU, no RC) */ - - // XXX builtin failsafe would activate here - control_count = 0; - } - //lowsyslog("R: %d P: %d Y: %d T: %d \n", control_values[0], control_values[1], control_values[2], control_values[3]); + if (r_status_flags & PX4IO_P_STATUS_FLAGS_RAW_PWM) { + + /* don't actually mix anything - we already have raw PWM values */ + source = MIX_NONE; - /* this is for multicopters, etc. where manual override does not make sense */ } else { - /* if the fmu is available whe are good */ - if (system_state.mixer_fmu_available) { - control_count = PX4IO_CONTROL_CHANNELS; - control_values = &system_state.fmu_channel_data[0]; - /* we better shut everything off */ - } else { - control_count = 0; + + if (!(r_status_flags & PX4IO_P_STATUS_FLAGS_OVERRIDE) && + (r_status_flags & PX4IO_P_STATUS_FLAGS_MIXER_OK)) { + + /* mix from FMU controls */ + source = MIX_FMU; + } + + if ( (r_status_flags & PX4IO_P_STATUS_FLAGS_OVERRIDE) && + (r_status_flags & PX4IO_P_STATUS_FLAGS_RC_OK)) { + + /* if allowed, mix from RC inputs directly */ + source = MIX_OVERRIDE; } } /* - * Run the mixers if we have any control data at all. + * Run the mixers. */ - if (control_count > 0) { + if (source == MIX_FAILSAFE) { + + /* copy failsafe values to the servo outputs */ + for (unsigned i = 0; i < IO_SERVO_COUNT; i++) + r_page_servos[i] = r_page_servo_failsafe[i]; + + } else if (source != MIX_NONE) { + float outputs[IO_SERVO_COUNT]; unsigned mixed; @@ -181,31 +144,31 @@ mixer_tick(void) mixed = mixer_group.mix(&outputs[0], IO_SERVO_COUNT); /* scale to PWM and update the servo outputs as required */ - for (unsigned i = 0; i < IO_SERVO_COUNT; i++) { - if (i < mixed) { - /* scale to servo output */ - system_state.servos[i] = (outputs[i] * 500.0f) + 1500; - - } else { - /* set to zero to inhibit PWM pulse output */ - system_state.servos[i] = 0; - } - - /* - * If we are armed, update the servo output. - */ - if (system_state.armed && system_state.arm_ok) { - up_pwm_servo_set(i, system_state.servos[i]); - } + for (unsigned i = 0; i < mixed; i++) { + + /* save actuator values for FMU readback */ + r_page_actuators[i] = FLOAT_TO_REG(outputs[i]); + + /* scale to servo output */ + r_page_servos[i] = (outputs[i] * 500.0f) + 1500; + } + for (unsigned i = mixed; i < IO_SERVO_COUNT; i++) + r_page_servos[i] = 0; } /* * Decide whether the servos should be armed right now. - * A sufficient reason is armed state and either FMU or RC control inputs + * + * We must be armed, and we must have a PWM source; either raw from + * FMU or from the mixer. + * + * XXX correct behaviour for failsafe may require an additional case + * here. */ - - should_arm = system_state.armed && system_state.arm_ok && (control_count > 0); + bool should_arm = (/* FMU is armed */ (r_setup_arming & PX4IO_P_SETUP_ARMING_ARM_OK) && + /* IO is armed */ (r_status_flags & PX4IO_P_STATUS_FLAGS_ARMED) && + /* there is valid input */ (r_status_flags & (PX4IO_P_STATUS_FLAGS_RAW_PWM | PX4IO_P_STATUS_FLAGS_MIXER_OK))); if (should_arm && !mixer_servos_armed) { /* need to arm, but not armed */ @@ -217,6 +180,12 @@ mixer_tick(void) up_pwm_servo_arm(false); mixer_servos_armed = false; } + + if (mixer_servos_armed) { + /* update the servo outputs. */ + for (unsigned i = 0; i < IO_SERVO_COUNT; i++) + up_pwm_servo_set(i, r_page_servos[i]); + } } static int @@ -225,21 +194,40 @@ mixer_callback(uintptr_t handle, uint8_t control_index, float &control) { - /* if the control index refers to an input that's not valid, we can't return it */ - if (control_index >= control_count) + if (control_group != 0) return -1; - /* scale from current PWM units (1000-2000) to mixer input values */ - if (system_state.manual_override_ok && system_state.mixer_manual_override && control_index == 3) { - control = ((float)control_values[control_index] - 1000.0f) / 1000.0f; - } else { - control = ((float)control_values[control_index] - 1500.0f) / 500.0f; + switch (source) { + case MIX_FMU: + if (control_index < PX4IO_CONTROL_CHANNELS) { + control = REG_TO_FLOAT(r_page_controls[control_index]); + break; + } + return -1; + + case MIX_OVERRIDE: + if (r_page_rc_input[PX4IO_P_RC_VALID] & (1 << control_index)) { + control = REG_TO_FLOAT(r_page_rc_input[PX4IO_P_RC_BASE + control_index]); + break; + } + return -1; + + case MIX_FAILSAFE: + case MIX_NONE: + /* XXX we could allow for configuration of per-output failsafe values */ + return -1; } return 0; } -static char mixer_text[256]; +/* + * XXX error handling here should be more aggressive; currently it is + * possible to get STATUS_FLAGS_MIXER_OK set even though the mixer has + * not loaded faithfully. + */ + +static char mixer_text[256]; /* large enough for one mixer */ static unsigned mixer_text_length = 0; void @@ -248,7 +236,7 @@ mixer_handle_text(const void *buffer, size_t length) px4io_mixdata *msg = (px4io_mixdata *)buffer; - debug("mixer text %u", length); + isr_debug(2, "mix txt %u", length); if (length < sizeof(px4io_mixdata)) return; @@ -257,23 +245,27 @@ mixer_handle_text(const void *buffer, size_t length) switch (msg->action) { case F2I_MIXER_ACTION_RESET: - debug("reset"); + isr_debug(2, "reset"); mixer_group.reset(); mixer_text_length = 0; + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_MIXER_OK; /* FALLTHROUGH */ case F2I_MIXER_ACTION_APPEND: - debug("append %d", length); + isr_debug(2, "append %d", length); /* check for overflow - this is really fatal */ - if ((mixer_text_length + text_length + 1) > sizeof(mixer_text)) + /* XXX could add just what will fit & try to parse, then repeat... */ + if ((mixer_text_length + text_length + 1) > sizeof(mixer_text)) { + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_MIXER_OK; return; + } /* append mixer text and nul-terminate */ memcpy(&mixer_text[mixer_text_length], msg->text, text_length); mixer_text_length += text_length; mixer_text[mixer_text_length] = '\0'; - debug("buflen %u", mixer_text_length); + isr_debug(2, "buflen %u", mixer_text_length); /* process the text buffer, adding new mixers as their descriptions can be parsed */ unsigned resid = mixer_text_length; @@ -281,7 +273,11 @@ mixer_handle_text(const void *buffer, size_t length) /* if anything was parsed */ if (resid != mixer_text_length) { - debug("used %u", mixer_text_length - resid); + + /* ideally, this should test resid == 0 ? */ + r_status_flags |= PX4IO_P_STATUS_FLAGS_MIXER_OK; + + isr_debug(2, "used %u", mixer_text_length - resid); /* copy any leftover text to the base of the buffer for re-use */ if (resid > 0) diff --git a/apps/px4io/protocol.h b/apps/px4io/protocol.h index 90236b40c..0ee6d2c4b 100644 --- a/apps/px4io/protocol.h +++ b/apps/px4io/protocol.h @@ -31,67 +31,151 @@ * ****************************************************************************/ -/** - * @file PX4FMU <-> PX4IO messaging protocol. - * - * This initial version of the protocol is very simple; each side transmits a - * complete update with each frame. This avoids the sending of many small - * messages and the corresponding complexity involved. - */ - #pragma once -#define PX4IO_CONTROL_CHANNELS 8 -#define PX4IO_INPUT_CHANNELS 12 -#define PX4IO_RELAY_CHANNELS 4 - -#pragma pack(push, 1) - /** - * Periodic command from FMU to IO. - */ -struct px4io_command { - uint16_t f2i_magic; -#define F2I_MAGIC 0x636d - - uint16_t servo_rate; - uint16_t output_control[PX4IO_CONTROL_CHANNELS]; /**< PWM output rate in Hz */ - bool relay_state[PX4IO_RELAY_CHANNELS]; /**< relay states as requested by FMU */ - bool arm_ok; /**< FMU allows full arming */ - bool vector_flight_mode_ok; /**< FMU aquired a valid position lock, ready for pos control */ - bool manual_override_ok; /**< if true, IO performs a direct manual override */ -}; - -/** - * Periodic report from IO to FMU + * @file protocol.h + * + * PX4IO I2C interface protocol. + * + * Communication is performed via writes to and reads from 16-bit virtual + * registers organised into pages of 255 registers each. + * + * The first two bytes of each write select a page and offset address + * respectively. Subsequent reads and writes increment the offset within + * the page. + * + * Most pages are readable or writable but not both. + * + * Note that some pages may permit offset values greater than 255, which + * can only be achieved by long writes. The offset does not wrap. + * + * Writes to unimplemented registers are ignored. Reads from unimplemented + * registers return undefined values. + * + * As convention, values that would be floating point in other parts of + * the PX4 system are expressed as signed integer values scaled by 10000, + * e.g. control values range from -10000..10000. Use the REG_TO_SIGNED and + * SIGNED_TO_REG macros to convert between register representation and + * the signed version, and REG_TO_FLOAT/FLOAT_TO_REG to convert to float. + * + * Note that the implementation of readable pages prefers registers within + * readable pages to be densely packed. Page numbers do not need to be + * packed. */ -struct px4io_report { - uint16_t i2f_magic; -#define I2F_MAGIC 0x7570 - - uint16_t rc_channel[PX4IO_INPUT_CHANNELS]; - bool armed; - uint8_t channel_count; - uint16_t battery_mv; - uint16_t adc_in; - uint8_t overcurrent; -}; - -/** - * As-needed config message from FMU to IO - */ -struct px4io_config { - uint16_t f2i_config_magic; -#define F2I_CONFIG_MAGIC 0x6366 - - uint8_t rc_map[4]; /**< channel ordering of roll, pitch, yaw, throttle */ - uint16_t rc_min[4]; /**< min value for each channel */ - uint16_t rc_trim[4]; /**< trim value for each channel */ - uint16_t rc_max[4]; /**< max value for each channel */ - int8_t rc_rev[4]; /**< rev value for each channel */ - uint16_t rc_dz[4]; /**< dz value for each channel */ -}; +#define PX4IO_CONTROL_CHANNELS 8 +#define PX4IO_INPUT_CHANNELS 12 +#define PX4IO_RELAY_CHANNELS 4 + +/* Per C, this is safe for all 2's complement systems */ +#define REG_TO_SIGNED(_reg) ((int16_t)(_reg)) +#define SIGNED_TO_REG(_signed) ((uint16_t)(_signed)) + +#define REG_TO_FLOAT(_reg) ((float)REG_TO_SIGNED(_reg) / 10000.0f) +#define FLOAT_TO_REG(_float) SIGNED_TO_REG((int16_t)((_float) * 10000.0f)) + +/* static configuration page */ +#define PX4IO_PAGE_CONFIG 0 +#define PX4IO_P_CONFIG_PROTOCOL_VERSION 0 /* magic numbers TBD */ +#define PX4IO_P_CONFIG_SOFTWARE_VERSION 1 /* magic numbers TBD */ +#define PX4IO_P_CONFIG_BOOTLOADER_VERSION 2 /* get this how? */ +#define PX4IO_P_CONFIG_MAX_TRANSFER 3 /* maximum I2C transfer size */ +#define PX4IO_P_CONFIG_CONTROL_COUNT 4 /* hardcoded max control count supported */ +#define PX4IO_P_CONFIG_ACTUATOR_COUNT 5 /* hardcoded max actuator output count */ +#define PX4IO_P_CONFIG_RC_INPUT_COUNT 6 /* hardcoded max R/C input count supported */ +#define PX4IO_P_CONFIG_ADC_INPUT_COUNT 7 /* hardcoded max ADC inputs */ +#define PX4IO_P_CONFIG_RELAY_COUNT 8 /* harcoded # of relay outputs */ + +/* dynamic status page */ +#define PX4IO_PAGE_STATUS 1 +#define PX4IO_P_STATUS_FREEMEM 0 +#define PX4IO_P_STATUS_CPULOAD 1 + +#define PX4IO_P_STATUS_FLAGS 2 /* monitoring flags */ +#define PX4IO_P_STATUS_FLAGS_ARMED (1 << 0) /* arm-ok and locally armed */ +#define PX4IO_P_STATUS_FLAGS_OVERRIDE (1 << 1) /* in manual override */ +#define PX4IO_P_STATUS_FLAGS_RC_OK (1 << 2) /* RC input is valid */ +#define PX4IO_P_STATUS_FLAGS_RC_PPM (1 << 3) /* PPM input is valid */ +#define PX4IO_P_STATUS_FLAGS_RC_DSM (1 << 4) /* DSM input is valid */ +#define PX4IO_P_STATUS_FLAGS_RC_SBUS (1 << 5) /* SBUS input is valid */ +#define PX4IO_P_STATUS_FLAGS_FMU_OK (1 << 6) /* controls from FMU are valid */ +#define PX4IO_P_STATUS_FLAGS_RAW_PWM (1 << 7) /* raw PWM from FMU is bypassing the mixer */ +#define PX4IO_P_STATUS_FLAGS_MIXER_OK (1 << 8) /* mixer is OK */ +#define PX4IO_P_STATUS_FLAGS_ARM_SYNC (1 << 9) /* the arming state between IO and FMU is in sync */ + +#define PX4IO_P_STATUS_ALARMS 3 /* alarm flags - alarms latch, write 1 to a bit to clear it */ +#define PX4IO_P_STATUS_ALARMS_VBATT_LOW (1 << 0) /* VBatt is very close to regulator dropout */ +#define PX4IO_P_STATUS_ALARMS_TEMPERATURE (1 << 1) /* board temperature is high */ +#define PX4IO_P_STATUS_ALARMS_SERVO_CURRENT (1 << 2) /* servo current limit was exceeded */ +#define PX4IO_P_STATUS_ALARMS_ACC_CURRENT (1 << 3) /* accessory current limit was exceeded */ +#define PX4IO_P_STATUS_ALARMS_FMU_LOST (1 << 4) /* timed out waiting for controls from FMU */ +#define PX4IO_P_STATUS_ALARMS_RC_LOST (1 << 5) /* timed out waiting for RC input */ + +#define PX4IO_P_STATUS_VBATT 4 /* battery voltage in mV */ +#define PX4IO_P_STATUS_IBATT 5 /* battery current in cA */ + +/* array of post-mix actuator outputs, -10000..10000 */ +#define PX4IO_PAGE_ACTUATORS 2 /* 0..CONFIG_ACTUATOR_COUNT-1 */ + +/* array of PWM servo output values, microseconds */ +#define PX4IO_PAGE_SERVOS 3 /* 0..CONFIG_ACTUATOR_COUNT-1 */ + +/* array of raw RC input values, microseconds */ +#define PX4IO_PAGE_RAW_RC_INPUT 4 +#define PX4IO_P_RAW_RC_COUNT 0 /* number of valid channels */ +#define PX4IO_P_RAW_RC_BASE 1 /* CONFIG_RC_INPUT_COUNT channels from here */ + +/* array of scaled RC input values, -10000..10000 */ +#define PX4IO_PAGE_RC_INPUT 5 +#define PX4IO_P_RC_VALID 0 /* bitmask of valid controls */ +#define PX4IO_P_RC_BASE 1 /* CONFIG_RC_INPUT_COUNT controls from here */ + +/* array of raw ADC values */ +#define PX4IO_PAGE_RAW_ADC_INPUT 6 /* 0..CONFIG_ADC_INPUT_COUNT-1 */ + +/* setup page */ +#define PX4IO_PAGE_SETUP 100 +#define PX4IO_P_SETUP_FEATURES 0 + +#define PX4IO_P_SETUP_ARMING 1 /* arming controls */ +#define PX4IO_P_SETUP_ARMING_ARM_OK (1 << 0) /* OK to arm */ +#define PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK (1 << 2) /* OK to switch to manual override via override RC channel */ +#define PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK (1 << 3) /* OK to perform position / vector control (= position lock) */ +#define PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK (1 << 4) /* OK to try in-air restart */ + +#define PX4IO_P_SETUP_PWM_RATES 2 /* bitmask, 0 = low rate, 1 = high rate */ +#define PX4IO_P_SETUP_PWM_LOWRATE 3 /* 'low' PWM frame output rate in Hz */ +#define PX4IO_P_SETUP_PWM_HIGHRATE 4 /* 'high' PWM frame output rate in Hz */ +#define PX4IO_P_SETUP_RELAYS 5 /* bitmask of relay/switch outputs, 0 = off, 1 = on */ +#define PX4IO_P_SETUP_VBATT_SCALE 6 /* battery voltage correction factor (float) */ +#define PX4IO_P_SETUP_IBATT_SCALE 7 /* battery current scaling factor (float) */ +#define PX4IO_P_SETUP_IBATT_BIAS 8 /* battery current bias value */ +#define PX4IO_P_SETUP_SET_DEBUG 9 /* debug level for IO board */ + +/* autopilot control values, -10000..10000 */ +#define PX4IO_PAGE_CONTROLS 101 /* 0..CONFIG_CONTROL_COUNT */ + +/* raw text load to the mixer parser - ignores offset */ +#define PX4IO_PAGE_MIXERLOAD 102 + +/* R/C channel config */ +#define PX4IO_PAGE_RC_CONFIG 103 /* R/C input configuration */ +#define PX4IO_P_RC_CONFIG_MIN 0 /* lowest input value */ +#define PX4IO_P_RC_CONFIG_CENTER 1 /* center input value */ +#define PX4IO_P_RC_CONFIG_MAX 2 /* highest input value */ +#define PX4IO_P_RC_CONFIG_DEADZONE 3 /* band around center that is ignored */ +#define PX4IO_P_RC_CONFIG_ASSIGNMENT 4 /* mapped input value */ +#define PX4IO_P_RC_CONFIG_OPTIONS 5 /* channel options bitmask */ +#define PX4IO_P_RC_CONFIG_OPTIONS_ENABLED (1 << 0) +#define PX4IO_P_RC_CONFIG_OPTIONS_REVERSE (1 << 1) +#define PX4IO_P_RC_CONFIG_STRIDE 6 /* spacing between channel config data */ + +/* PWM output - overrides mixer */ +#define PX4IO_PAGE_DIRECT_PWM 104 /* 0..CONFIG_ACTUATOR_COUNT-1 */ + +/* PWM failsafe values - zero disables the output */ +#define PX4IO_PAGE_FAILSAFE_PWM 105 /* 0..CONFIG_ACTUATOR_COUNT-1 */ /** * As-needed mixer data upload. @@ -99,18 +183,16 @@ struct px4io_config { * This message adds text to the mixer text buffer; the text * buffer is drained as the definitions are consumed. */ +#pragma pack(push, 1) struct px4io_mixdata { uint16_t f2i_mixer_magic; #define F2I_MIXER_MAGIC 0x6d74 uint8_t action; -#define F2I_MIXER_ACTION_RESET 0 -#define F2I_MIXER_ACTION_APPEND 1 +#define F2I_MIXER_ACTION_RESET 0 +#define F2I_MIXER_ACTION_APPEND 1 char text[0]; /* actual text size may vary */ }; +#pragma pack(pop) -/* maximum size is limited by the HX frame size */ -#define F2I_MIXER_MAX_TEXT (HX_STREAM_MAX_FRAME - sizeof(struct px4io_mixdata)) - -#pragma pack(pop)
\ No newline at end of file diff --git a/apps/px4io/px4io.c b/apps/px4io/px4io.c index 88342816e..589264661 100644 --- a/apps/px4io/px4io.c +++ b/apps/px4io/px4io.c @@ -37,20 +37,23 @@ */ #include <nuttx/config.h> -#include <stdio.h> + +#include <stdio.h> // required for task_create #include <stdbool.h> -#include <fcntl.h> -#include <unistd.h> -#include <debug.h> #include <stdlib.h> #include <errno.h> #include <string.h> - -#include <nuttx/clock.h> +#include <poll.h> +#include <signal.h> #include <drivers/drv_pwm_output.h> #include <drivers/drv_hrt.h> +#include <systemlib/perf_counter.h> + +#include <stm32_uart.h> + +#define DEBUG #include "px4io.h" __EXPORT int user_start(int argc, char *argv[]); @@ -59,19 +62,80 @@ extern void up_cxxinitialize(void); struct sys_state_s system_state; -int user_start(int argc, char *argv[]) +static struct hrt_call serial_dma_call; + +/* global debug level for isr_debug() */ +volatile uint8_t debug_level = 0; +volatile uint32_t i2c_loop_resets = 0; + +/* + * a set of debug buffers to allow us to send debug information from ISRs + */ + +static volatile uint32_t msg_counter; +static volatile uint32_t last_msg_counter; +static volatile uint8_t msg_next_out, msg_next_in; + +/* + * WARNING: too large buffers here consume the memory required + * for mixer handling. Do not allocate more than 80 bytes for + * output. + */ +#define NUM_MSG 2 +static char msg[NUM_MSG][40]; + +/* + * add a debug message to be printed on the console + */ +void +isr_debug(uint8_t level, const char *fmt, ...) +{ + if (level > debug_level) { + return; + } + va_list ap; + va_start(ap, fmt); + vsnprintf(msg[msg_next_in], sizeof(msg[0]), fmt, ap); + va_end(ap); + msg_next_in = (msg_next_in+1) % NUM_MSG; + msg_counter++; +} + +/* + * show all pending debug messages + */ +static void +show_debug_messages(void) +{ + if (msg_counter != last_msg_counter) { + uint32_t n = msg_counter - last_msg_counter; + if (n > NUM_MSG) n = NUM_MSG; + last_msg_counter = msg_counter; + while (n--) { + debug("%s", msg[msg_next_out]); + msg_next_out = (msg_next_out+1) % NUM_MSG; + } + } +} + +int +user_start(int argc, char *argv[]) { /* run C++ ctors before we go any further */ up_cxxinitialize(); /* reset all to zero */ memset(&system_state, 0, sizeof(system_state)); - /* default to 50 Hz PWM outputs */ - system_state.servo_rate = 50; /* configure the high-resolution time/callout interface */ hrt_init(); + /* + * Poll at 1ms intervals for received bytes that have not triggered + * a DMA event. + */ + hrt_call_every(&serial_dma_call, 1000, 1000, (hrt_callout)stm32_serial_dma_poll, NULL); + /* print some startup info */ lowsyslog("\nPX4IO: starting\n"); @@ -89,17 +153,76 @@ int user_start(int argc, char *argv[]) /* configure the first 8 PWM outputs (i.e. all of them) */ up_pwm_servo_init(0xff); - /* start the flight control signal handler */ - task_create("FCon", - SCHED_PRIORITY_DEFAULT, - 1024, - (main_t)controls_main, - NULL); + /* initialise the control inputs */ + controls_init(); + + /* start the i2c handler */ + i2c_init(); + + /* add a performance counter for mixing */ + perf_counter_t mixer_perf = perf_alloc(PC_ELAPSED, "mix"); + + /* add a performance counter for controls */ + perf_counter_t controls_perf = perf_alloc(PC_ELAPSED, "controls"); + /* and one for measuring the loop rate */ + perf_counter_t loop_perf = perf_alloc(PC_INTERVAL, "loop"); struct mallinfo minfo = mallinfo(); - lowsyslog("free %u largest %u\n", minfo.mxordblk, minfo.fordblks); + lowsyslog("MEM: free %u, largest %u\n", minfo.mxordblk, minfo.fordblks); + +#if 0 + /* not enough memory, lock down */ + if (minfo.mxordblk < 500) { + lowsyslog("ERR: not enough MEM"); + bool phase = false; + + if (phase) { + LED_AMBER(true); + LED_BLUE(false); + } else { + LED_AMBER(false); + LED_BLUE(true); + } + + phase = !phase; + usleep(300000); + } +#endif + + /* + * Run everything in a tight loop. + */ + + uint64_t last_debug_time = 0; + for (;;) { + + /* track the rate at which the loop is running */ + perf_count(loop_perf); + + /* kick the mixer */ + perf_begin(mixer_perf); + mixer_tick(); + perf_end(mixer_perf); + + /* kick the control inputs */ + perf_begin(controls_perf); + controls_tick(); + perf_end(controls_perf); + + /* check for debug activity */ + show_debug_messages(); + + /* post debug state at ~1Hz */ + if (hrt_absolute_time() - last_debug_time > (1000 * 1000)) { + isr_debug(1, "d:%u s=0x%x a=0x%x f=0x%x r=%u", + (unsigned)debug_level, + (unsigned)r_status_flags, + (unsigned)r_setup_arming, + (unsigned)r_setup_features, + (unsigned)i2c_loop_resets); + last_debug_time = hrt_absolute_time(); + } + } +} - /* we're done here, go run the communications loop */ - comms_main(); -}
\ No newline at end of file diff --git a/apps/px4io/px4io.h b/apps/px4io/px4io.h index 3ce6afc31..7b4b07c2c 100644 --- a/apps/px4io/px4io.h +++ b/apps/px4io/px4io.h @@ -64,129 +64,58 @@ #endif /* - * System state structure. + * Registers. */ -struct sys_state_s { - - bool armed; /* IO armed */ - bool arm_ok; /* FMU says OK to arm */ - uint16_t servo_rate; /* output rate of servos in Hz */ - - /** - * Remote control input(s) channel mappings - */ - uint8_t rc_map[4]; +extern uint16_t r_page_status[]; /* PX4IO_PAGE_STATUS */ +extern uint16_t r_page_actuators[]; /* PX4IO_PAGE_ACTUATORS */ +extern uint16_t r_page_servos[]; /* PX4IO_PAGE_SERVOS */ +extern uint16_t r_page_raw_rc_input[]; /* PX4IO_PAGE_RAW_RC_INPUT */ +extern uint16_t r_page_rc_input[]; /* PX4IO_PAGE_RC_INPUT */ +extern uint16_t r_page_adc[]; /* PX4IO_PAGE_RAW_ADC_INPUT */ + +extern volatile uint16_t r_page_setup[]; /* PX4IO_PAGE_SETUP */ +extern volatile uint16_t r_page_controls[]; /* PX4IO_PAGE_CONTROLS */ +extern uint16_t r_page_rc_input_config[]; /* PX4IO_PAGE_RC_INPUT_CONFIG */ +extern uint16_t r_page_servo_failsafe[]; /* PX4IO_PAGE_FAILSAFE_PWM */ - /** - * Remote control channel attributes - */ - uint16_t rc_min[4]; - uint16_t rc_trim[4]; - uint16_t rc_max[4]; - int16_t rc_rev[4]; - uint16_t rc_dz[4]; +/* + * Register aliases. + * + * Handy aliases for registers that are widely used. + */ +#define r_status_flags r_page_status[PX4IO_P_STATUS_FLAGS] +#define r_status_alarms r_page_status[PX4IO_P_STATUS_ALARMS] - /** - * Data from the remote control input(s) - */ - unsigned rc_channels; - uint16_t rc_channel_data[PX4IO_INPUT_CHANNELS]; - uint64_t rc_channels_timestamp; +#define r_raw_rc_count r_page_raw_rc_input[PX4IO_P_RAW_RC_COUNT] +#define r_raw_rc_values (&r_page_raw_rc_input[PX4IO_P_RAW_RC_BASE]) +#define r_rc_valid r_page_rc_input[PX4IO_P_RC_VALID] +#define r_rc_values (&r_page_rc_input[PX4IO_P_RAW_RC_BASE]) - /** - * Control signals from FMU. - */ - uint16_t fmu_channel_data[PX4IO_CONTROL_CHANNELS]; +#define r_setup_features r_page_setup[PX4IO_P_SETUP_FEATURES] +#define r_setup_arming r_page_setup[PX4IO_P_SETUP_ARMING] +#define r_setup_pwm_rates r_page_setup[PX4IO_P_SETUP_PWM_RATES] +#define r_setup_pwm_lowrate r_page_setup[PX4IO_P_SETUP_PWM_LOWRATE] +#define r_setup_pwm_highrate r_page_setup[PX4IO_P_SETUP_PWM_HIGHRATE] +#define r_setup_relays r_page_setup[PX4IO_P_SETUP_RELAYS] - /** - * Mixed servo outputs - */ - uint16_t servos[IO_SERVO_COUNT]; +#define r_control_values (&r_page_controls[0]) - /** - * Relay controls - */ - bool relays[PX4IO_RELAY_CHANNELS]; - - /** - * If true, we are using the FMU controls, else RC input if available. - */ - bool mixer_manual_override; - - /** - * If true, FMU input is available. - */ - bool mixer_fmu_available; +/* + * System state structure. + */ +struct sys_state_s { - /** - * If true, state that should be reported to FMU has been updated. - */ - bool fmu_report_due; + volatile uint64_t rc_channels_timestamp; /** * Last FMU receive time, in microseconds since system boot */ - uint64_t fmu_data_received_time; - - /** - * Current serial interface mode, per the serial_rx_mode parameter - * in the config packet. - */ - uint8_t serial_rx_mode; - - /** - * If true, the RC signal has been lost for more than a timeout interval - */ - bool rc_lost; - - /** - * If true, the connection to FMU has been lost for more than a timeout interval - */ - bool fmu_lost; - - /** - * If true, FMU is ready for autonomous position control. Only used for LED indication - */ - bool vector_flight_mode_ok; - - /** - * If true, IO performs an on-board manual override with the RC channel values - */ - bool manual_override_ok; - - /* - * Measured battery voltage in mV - */ - uint16_t battery_mv; - - /* - * ADC IN5 measurement - */ - uint16_t adc_in5; - - /* - * Power supply overcurrent status bits. - */ - uint8_t overcurrent; + volatile uint64_t fmu_data_received_time; }; extern struct sys_state_s system_state; -#if 0 -/* - * Software countdown timers. - * - * Each timer counts down to zero at one tick per ms. - */ -#define TIMER_BLINK_AMBER 0 -#define TIMER_BLINK_BLUE 1 -#define TIMER_STATUS_PRINT 2 -#define TIMER_SANITY 7 -#define TIMER_NUM_TIMERS 8 -extern volatile int timers[TIMER_NUM_TIMERS]; -#endif - /* * GPIO handling. */ @@ -206,6 +135,7 @@ extern volatile int timers[TIMER_NUM_TIMERS]; #define ADC_VBATT 4 #define ADC_IN5 5 +#define ADC_CHANNEL_COUNT 2 /* * Mixer @@ -213,34 +143,46 @@ extern volatile int timers[TIMER_NUM_TIMERS]; extern void mixer_tick(void); extern void mixer_handle_text(const void *buffer, size_t length); -/* +/** * Safety switch/LED. */ extern void safety_init(void); -/* +/** * FMU communications */ -extern void comms_main(void) __attribute__((noreturn)); +extern void i2c_init(void); -/* +/** + * Register space + */ +extern void registers_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num_values); +extern int registers_get(uint8_t page, uint8_t offset, uint16_t **values, unsigned *num_values); + +/** * Sensors/misc inputs */ extern int adc_init(void); extern uint16_t adc_measure(unsigned channel); -/* +/** * R/C receiver handling. + * + * Input functions return true when they receive an update from the RC controller. */ -extern void controls_main(void); +extern void controls_init(void); +extern void controls_tick(void); extern int dsm_init(const char *device); -extern bool dsm_input(void); +extern bool dsm_input(uint16_t *values, uint16_t *num_values); extern int sbus_init(const char *device); -extern bool sbus_input(void); +extern bool sbus_input(uint16_t *values, uint16_t *num_values); + +/** global debug level for isr_debug() */ +extern volatile uint8_t debug_level; + +/* send a debug message to the console */ +extern void isr_debug(uint8_t level, const char *fmt, ...); + +void i2c_dump(void); +void i2c_reset(void); -/* - * Assertion codes - */ -#define A_GPIO_OPEN_FAIL 100 -#define A_SERVO_OPEN_FAIL 101 -#define A_INPUTQ_OPEN_FAIL 102 diff --git a/apps/px4io/registers.c b/apps/px4io/registers.c new file mode 100644 index 000000000..5fb90b9b0 --- /dev/null +++ b/apps/px4io/registers.c @@ -0,0 +1,568 @@ +/**************************************************************************** + * + * Copyright (C) 2012 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 registers.c + * + * Implementation of the PX4IO register space. + */ + +#include <nuttx/config.h> + +#include <stdbool.h> +#include <stdlib.h> + +#include <drivers/drv_hrt.h> + +#include "px4io.h" +#include "protocol.h" + +static int registers_set_one(uint8_t page, uint8_t offset, uint16_t value); + +/** + * PAGE 0 + * + * Static configuration parameters. + */ +static const uint16_t r_page_config[] = { + [PX4IO_P_CONFIG_PROTOCOL_VERSION] = 1, /* XXX hardcoded magic number */ + [PX4IO_P_CONFIG_SOFTWARE_VERSION] = 1, /* XXX hardcoded magic number */ + [PX4IO_P_CONFIG_BOOTLOADER_VERSION] = 3, /* XXX hardcoded magic number */ + [PX4IO_P_CONFIG_MAX_TRANSFER] = 64, /* XXX hardcoded magic number */ + [PX4IO_P_CONFIG_CONTROL_COUNT] = PX4IO_CONTROL_CHANNELS, + [PX4IO_P_CONFIG_ACTUATOR_COUNT] = IO_SERVO_COUNT, + [PX4IO_P_CONFIG_RC_INPUT_COUNT] = MAX_CONTROL_CHANNELS, + [PX4IO_P_CONFIG_ADC_INPUT_COUNT] = ADC_CHANNEL_COUNT, + [PX4IO_P_CONFIG_RELAY_COUNT] = PX4IO_RELAY_CHANNELS, +}; + +/** + * PAGE 1 + * + * Status values. + */ +uint16_t r_page_status[] = { + [PX4IO_P_STATUS_FREEMEM] = 0, + [PX4IO_P_STATUS_CPULOAD] = 0, + [PX4IO_P_STATUS_FLAGS] = 0, + [PX4IO_P_STATUS_ALARMS] = 0, + [PX4IO_P_STATUS_VBATT] = 0, + [PX4IO_P_STATUS_IBATT] = 0 +}; + +/** + * PAGE 2 + * + * Post-mixed actuator values. + */ +uint16_t r_page_actuators[IO_SERVO_COUNT]; + +/** + * PAGE 3 + * + * Servo PWM values + */ +uint16_t r_page_servos[IO_SERVO_COUNT]; + +/** + * PAGE 4 + * + * Raw RC input + */ +uint16_t r_page_raw_rc_input[] = +{ + [PX4IO_P_RAW_RC_COUNT] = 0, + [PX4IO_P_RAW_RC_BASE ... (PX4IO_P_RAW_RC_BASE + MAX_CONTROL_CHANNELS)] = 0 +}; + +/** + * PAGE 5 + * + * Scaled/routed RC input + */ +uint16_t r_page_rc_input[] = { + [PX4IO_P_RC_VALID] = 0, + [PX4IO_P_RC_BASE ... (PX4IO_P_RC_BASE + MAX_CONTROL_CHANNELS)] = 0 +}; + +/** + * PAGE 6 + * + * Raw ADC input. + */ +uint16_t r_page_adc[ADC_CHANNEL_COUNT]; + +/** + * PAGE 100 + * + * Setup registers + */ +volatile uint16_t r_page_setup[] = +{ + [PX4IO_P_SETUP_FEATURES] = 0, + [PX4IO_P_SETUP_ARMING] = 0, + [PX4IO_P_SETUP_PWM_RATES] = 0, + [PX4IO_P_SETUP_PWM_LOWRATE] = 50, + [PX4IO_P_SETUP_PWM_HIGHRATE] = 200, + [PX4IO_P_SETUP_RELAYS] = 0, + [PX4IO_P_SETUP_VBATT_SCALE] = 10000, + [PX4IO_P_SETUP_IBATT_SCALE] = 0, + [PX4IO_P_SETUP_IBATT_BIAS] = 0 +}; + +#define PX4IO_P_SETUP_FEATURES_VALID (0) +#define PX4IO_P_SETUP_ARMING_VALID (PX4IO_P_SETUP_ARMING_ARM_OK | \ + PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK | \ + PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK) +#define PX4IO_P_SETUP_RATES_VALID ((1 << IO_SERVO_COUNT) - 1) +#define PX4IO_P_SETUP_RELAYS_VALID ((1 << PX4IO_RELAY_CHANNELS) - 1) + +/** + * PAGE 101 + * + * Control values from the FMU. + */ +volatile uint16_t r_page_controls[PX4IO_CONTROL_CHANNELS]; + +/* + * PAGE 102 does not have a buffer. + */ + +/** + * PAGE 103 + * + * R/C channel input configuration. + */ +uint16_t r_page_rc_input_config[MAX_CONTROL_CHANNELS * PX4IO_P_RC_CONFIG_STRIDE]; + +/* valid options excluding ENABLE */ +#define PX4IO_P_RC_CONFIG_OPTIONS_VALID PX4IO_P_RC_CONFIG_OPTIONS_REVERSE + +/* + * PAGE 104 uses r_page_servos. + */ + +/** + * PAGE 105 + * + * Failsafe servo PWM values + */ +uint16_t r_page_servo_failsafe[IO_SERVO_COUNT]; + +void +registers_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num_values) +{ + + switch (page) { + + /* handle bulk controls input */ + case PX4IO_PAGE_CONTROLS: + + /* copy channel data */ + while ((offset < PX4IO_CONTROL_CHANNELS) && (num_values > 0)) { + + /* XXX range-check value? */ + r_page_controls[offset] = *values; + + offset++; + num_values--; + values++; + } + + system_state.fmu_data_received_time = hrt_absolute_time(); + r_status_flags |= PX4IO_P_STATUS_FLAGS_FMU_OK; + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_RAW_PWM; + + break; + + /* handle raw PWM input */ + case PX4IO_PAGE_DIRECT_PWM: + + /* copy channel data */ + while ((offset < PX4IO_CONTROL_CHANNELS) && (num_values > 0)) { + + /* XXX range-check value? */ + r_page_servos[offset] = *values; + + offset++; + num_values--; + values++; + } + + system_state.fmu_data_received_time = hrt_absolute_time(); + r_status_flags |= PX4IO_P_STATUS_FLAGS_FMU_OK | PX4IO_P_STATUS_FLAGS_RAW_PWM; + + break; + + /* handle setup for servo failsafe values */ + case PX4IO_PAGE_FAILSAFE_PWM: + + /* copy channel data */ + while ((offset < PX4IO_CONTROL_CHANNELS) && (num_values > 0)) { + + /* XXX range-check value? */ + r_page_servo_failsafe[offset] = *values; + + offset++; + num_values--; + values++; + } + break; + + /* handle text going to the mixer parser */ + case PX4IO_PAGE_MIXERLOAD: + mixer_handle_text(values, num_values * sizeof(*values)); + break; + + default: + /* avoid offset wrap */ + if ((offset + num_values) > 255) + num_values = 255 - offset; + + /* iterate individual registers, set each in turn */ + while (num_values--) { + if (registers_set_one(page, offset, *values)) + break; + offset++; + values++; + } + } +} + +static int +registers_set_one(uint8_t page, uint8_t offset, uint16_t value) +{ + switch (page) { + + case PX4IO_PAGE_STATUS: + switch (offset) { + case PX4IO_P_STATUS_ALARMS: + /* clear bits being written */ + r_status_alarms &= ~value; + break; + + case PX4IO_P_STATUS_FLAGS: + /* + * Allow FMU override of arming state (to allow in-air restores), + * but only if the arming state is not in sync on the IO side. + */ + if (!(r_status_flags & PX4IO_P_STATUS_FLAGS_ARM_SYNC)) { + r_status_flags = value; + } + break; + + default: + /* just ignore writes to other registers in this page */ + break; + } + break; + + case PX4IO_PAGE_SETUP: + switch (offset) { + case PX4IO_P_SETUP_FEATURES: + + value &= PX4IO_P_SETUP_FEATURES_VALID; + r_setup_features = value; + + /* no implemented feature selection at this point */ + + break; + + case PX4IO_P_SETUP_ARMING: + + value &= PX4IO_P_SETUP_ARMING_VALID; + + /* + * Update arming state - disarm if no longer OK. + * This builds on the requirement that the FMU driver + * asks about the FMU arming state on initialization, + * so that an in-air reset of FMU can not lead to a + * lockup of the IO arming state. + */ + if ((r_setup_arming & PX4IO_P_SETUP_ARMING_ARM_OK) && !(value & PX4IO_P_SETUP_ARMING_ARM_OK)) { + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_ARMED; + } + + r_setup_arming = value; + + break; + + case PX4IO_P_SETUP_PWM_RATES: + value &= PX4IO_P_SETUP_RATES_VALID; + r_setup_pwm_rates = value; + /* XXX re-configure timers */ + break; + + case PX4IO_P_SETUP_PWM_LOWRATE: + if (value < 50) + value = 50; + if (value > 400) + value = 400; + r_setup_pwm_lowrate = value; + /* XXX re-configure timers */ + break; + + case PX4IO_P_SETUP_PWM_HIGHRATE: + if (value < 50) + value = 50; + if (value > 400) + value = 400; + r_setup_pwm_highrate = value; + /* XXX re-configure timers */ + break; + + case PX4IO_P_SETUP_RELAYS: + value &= PX4IO_P_SETUP_RELAYS_VALID; + r_setup_relays = value; + POWER_RELAY1(value & (1 << 0) ? 1 : 0); + POWER_RELAY2(value & (1 << 1) ? 1 : 0); + POWER_ACC1(value & (1 << 2) ? 1 : 0); + POWER_ACC2(value & (1 << 3) ? 1 : 0); + break; + + case PX4IO_P_SETUP_SET_DEBUG: + debug_level = value; + isr_debug(0, "set debug %u\n", (unsigned)debug_level); + break; + + default: + return -1; + } + break; + + case PX4IO_PAGE_RC_CONFIG: { + unsigned channel = offset / PX4IO_P_RC_CONFIG_STRIDE; + unsigned index = offset - channel * PX4IO_P_RC_CONFIG_STRIDE; + uint16_t *conf = &r_page_rc_input_config[channel * PX4IO_P_RC_CONFIG_STRIDE]; + + if (channel >= MAX_CONTROL_CHANNELS) + return -1; + + /* disable the channel until we have a chance to sanity-check it */ + conf[PX4IO_P_RC_CONFIG_OPTIONS] &= PX4IO_P_RC_CONFIG_OPTIONS_ENABLED; + + switch (index) { + + case PX4IO_P_RC_CONFIG_MIN: + case PX4IO_P_RC_CONFIG_CENTER: + case PX4IO_P_RC_CONFIG_MAX: + case PX4IO_P_RC_CONFIG_DEADZONE: + case PX4IO_P_RC_CONFIG_ASSIGNMENT: + conf[index] = value; + break; + + case PX4IO_P_RC_CONFIG_OPTIONS: + value &= PX4IO_P_RC_CONFIG_OPTIONS_VALID; + + /* set all options except the enabled option */ + conf[index] = value & ~PX4IO_P_RC_CONFIG_OPTIONS_ENABLED; + + /* should the channel be enabled? */ + /* this option is normally set last */ + if (value & PX4IO_P_RC_CONFIG_OPTIONS_ENABLED) { + /* assert min..center..max ordering */ + if (conf[PX4IO_P_RC_CONFIG_MIN] < 500) + break; + if (conf[PX4IO_P_RC_CONFIG_MAX] > 2500) + break; + if (conf[PX4IO_P_RC_CONFIG_CENTER] < conf[PX4IO_P_RC_CONFIG_MIN]) + break; + if (conf[PX4IO_P_RC_CONFIG_CENTER] > conf[PX4IO_P_RC_CONFIG_MAX]) + break; + /* assert deadzone is sane */ + if (conf[PX4IO_P_RC_CONFIG_DEADZONE] > 500) + break; + if (conf[PX4IO_P_RC_CONFIG_MIN] > (conf[PX4IO_P_RC_CONFIG_CENTER] - conf[PX4IO_P_RC_CONFIG_DEADZONE])) + break; + if (conf[PX4IO_P_RC_CONFIG_MAX] < (conf[PX4IO_P_RC_CONFIG_CENTER] + conf[PX4IO_P_RC_CONFIG_DEADZONE])) + break; + if (conf[PX4IO_P_RC_CONFIG_ASSIGNMENT] >= MAX_CONTROL_CHANNELS) + break; + + /* sanity checks pass, enable channel */ + conf[index] |= PX4IO_P_RC_CONFIG_OPTIONS_ENABLED; + } + break; + /* inner switch: case PX4IO_P_RC_CONFIG_OPTIONS */ + + } + break; + /* case PX4IO_RC_PAGE_CONFIG */ + } + + default: + return -1; + } + return 0; +} + +uint8_t last_page; +uint8_t last_offset; + +int +registers_get(uint8_t page, uint8_t offset, uint16_t **values, unsigned *num_values) +{ +#define SELECT_PAGE(_page_name) \ + do { \ + *values = &_page_name[0]; \ + *num_values = sizeof(_page_name) / sizeof(_page_name[0]); \ + } while(0) + + switch (page) { + + /* + * Handle pages that are updated dynamically at read time. + */ + case PX4IO_PAGE_STATUS: + /* PX4IO_P_STATUS_FREEMEM */ + { + struct mallinfo minfo = mallinfo(); + r_page_status[PX4IO_P_STATUS_FREEMEM] = minfo.fordblks; + } + + /* XXX PX4IO_P_STATUS_CPULOAD */ + + /* PX4IO_P_STATUS_FLAGS maintained externally */ + + /* PX4IO_P_STATUS_ALARMS maintained externally */ + + /* PX4IO_P_STATUS_VBATT */ + { + /* + * Coefficients here derived by measurement of the 5-16V + * range on one unit: + * + * V counts + * 5 1001 + * 6 1219 + * 7 1436 + * 8 1653 + * 9 1870 + * 10 2086 + * 11 2303 + * 12 2522 + * 13 2738 + * 14 2956 + * 15 3172 + * 16 3389 + * + * slope = 0.0046067 + * intercept = 0.3863 + * + * Intercept corrected for best results @ 12V. + */ + unsigned counts = adc_measure(ADC_VBATT); + unsigned mV = (4150 + (counts * 46)) / 10 - 200; + unsigned corrected = (mV * r_page_setup[PX4IO_P_SETUP_VBATT_SCALE]) / 10000; + + r_page_status[PX4IO_P_STATUS_VBATT] = corrected; + } + + /* PX4IO_P_STATUS_IBATT */ + { + unsigned counts = adc_measure(ADC_VBATT); + unsigned scaled = (counts * r_page_setup[PX4IO_P_SETUP_IBATT_SCALE]) / 10000; + int corrected = scaled + REG_TO_SIGNED(r_page_setup[PX4IO_P_SETUP_IBATT_BIAS]); + if (corrected < 0) + corrected = 0; + r_page_status[PX4IO_P_STATUS_IBATT] = corrected; + } + + SELECT_PAGE(r_page_status); + break; + + case PX4IO_PAGE_RAW_ADC_INPUT: + r_page_adc[0] = adc_measure(ADC_VBATT); + r_page_adc[1] = adc_measure(ADC_IN5); + + SELECT_PAGE(r_page_adc); + break; + + /* + * Pages that are just a straight read of the register state. + */ + + /* status pages */ + case PX4IO_PAGE_CONFIG: + SELECT_PAGE(r_page_config); + break; + case PX4IO_PAGE_ACTUATORS: + SELECT_PAGE(r_page_actuators); + break; + case PX4IO_PAGE_SERVOS: + SELECT_PAGE(r_page_servos); + break; + case PX4IO_PAGE_RAW_RC_INPUT: + SELECT_PAGE(r_page_raw_rc_input); + break; + case PX4IO_PAGE_RC_INPUT: + SELECT_PAGE(r_page_rc_input); + break; + + /* readback of input pages */ + case PX4IO_PAGE_SETUP: + SELECT_PAGE(r_page_setup); + break; + case PX4IO_PAGE_CONTROLS: + SELECT_PAGE(r_page_controls); + break; + case PX4IO_PAGE_RC_CONFIG: + SELECT_PAGE(r_page_rc_input_config); + break; + case PX4IO_PAGE_DIRECT_PWM: + SELECT_PAGE(r_page_servos); + break; + case PX4IO_PAGE_FAILSAFE_PWM: + SELECT_PAGE(r_page_servo_failsafe); + break; + + default: + return -1; + } + +#undef SELECT_PAGE +#undef COPY_PAGE + +last_page = page; +last_offset = offset; + + /* if the offset is at or beyond the end of the page, we have no data */ + if (offset >= *num_values) + return -1; + + /* correct the data pointer and count for the offset */ + *values += offset; + *num_values -= offset; + + return 0; +} diff --git a/apps/px4io/safety.c b/apps/px4io/safety.c index 0cae29ac9..540636e19 100644 --- a/apps/px4io/safety.c +++ b/apps/px4io/safety.c @@ -36,15 +36,8 @@ */ #include <nuttx/config.h> -#include <stdio.h> -#include <stdbool.h> -#include <fcntl.h> -#include <unistd.h> -#include <debug.h> -#include <stdlib.h> -#include <errno.h> -#include <nuttx/clock.h> +#include <stdbool.h> #include <drivers/drv_hrt.h> @@ -116,30 +109,28 @@ safety_check_button(void *arg) * state machine, keep ARM_COUNTER_THRESHOLD the same * length in all cases of the if/else struct below. */ - if (safety_button_pressed && !system_state.armed) { + if (safety_button_pressed && !(r_status_flags & PX4IO_P_STATUS_FLAGS_ARMED)) { if (counter < ARM_COUNTER_THRESHOLD) { counter++; } else if (counter == ARM_COUNTER_THRESHOLD) { - /* change to armed state and notify the FMU */ - system_state.armed = true; + /* switch to armed state */ + r_status_flags |= PX4IO_P_STATUS_FLAGS_ARMED; counter++; - system_state.fmu_report_due = true; } /* Disarm quickly */ - } else if (safety_button_pressed && system_state.armed) { + } else if (safety_button_pressed && (r_status_flags & PX4IO_P_STATUS_FLAGS_ARMED)) { if (counter < ARM_COUNTER_THRESHOLD) { counter++; } else if (counter == ARM_COUNTER_THRESHOLD) { /* change to disarmed state and notify the FMU */ - system_state.armed = false; + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_ARMED; counter++; - system_state.fmu_report_due = true; } } else { @@ -149,18 +140,18 @@ safety_check_button(void *arg) /* Select the appropriate LED flash pattern depending on the current IO/FMU arm state */ uint16_t pattern = LED_PATTERN_SAFE; - if (system_state.armed) { - if (system_state.arm_ok) { + if (r_status_flags & PX4IO_P_STATUS_FLAGS_ARMED) { + if (r_setup_arming & PX4IO_P_SETUP_ARMING_ARM_OK) { pattern = LED_PATTERN_IO_FMU_ARMED; } else { pattern = LED_PATTERN_IO_ARMED; } - } else if (system_state.arm_ok) { + } else if (r_setup_arming & PX4IO_P_SETUP_ARMING_ARM_OK) { pattern = LED_PATTERN_FMU_ARMED; - } else if (system_state.vector_flight_mode_ok) { + } else if (r_setup_arming & PX4IO_P_SETUP_ARMING_VECTOR_FLIGHT_OK) { pattern = LED_PATTERN_VECTOR_FLIGHT_MODE_OK; } @@ -188,7 +179,7 @@ failsafe_blink(void *arg) static bool failsafe = false; /* blink the failsafe LED if we don't have FMU input */ - if (!system_state.mixer_fmu_available) { + if (!(r_status_flags & PX4IO_P_STATUS_FLAGS_FMU_OK)) { failsafe = !failsafe; } else { diff --git a/apps/px4io/sbus.c b/apps/px4io/sbus.c index 568ef8091..073ddeaba 100644 --- a/apps/px4io/sbus.c +++ b/apps/px4io/sbus.c @@ -53,7 +53,7 @@ #include "debug.h" #define SBUS_FRAME_SIZE 25 -#define SBUS_INPUT_CHANNELS 18 +#define SBUS_INPUT_CHANNELS 16 static int sbus_fd = -1; @@ -66,13 +66,13 @@ static unsigned partial_frame_count; unsigned sbus_frame_drops; -static void sbus_decode(hrt_abstime frame_time); +static bool sbus_decode(hrt_abstime frame_time, uint16_t *values, uint16_t *num_values); int sbus_init(const char *device) { if (sbus_fd < 0) - sbus_fd = open(device, O_RDONLY); + sbus_fd = open(device, O_RDONLY | O_NONBLOCK); if (sbus_fd >= 0) { struct termios t; @@ -97,7 +97,7 @@ sbus_init(const char *device) } bool -sbus_input(void) +sbus_input(uint16_t *values, uint16_t *num_values) { ssize_t ret; hrt_abstime now; @@ -134,7 +134,7 @@ sbus_input(void) /* if the read failed for any reason, just give up here */ if (ret < 1) - goto out; + return false; last_rx_time = now; @@ -147,20 +147,14 @@ sbus_input(void) * If we don't have a full frame, return */ if (partial_frame_count < SBUS_FRAME_SIZE) - goto out; + return false; /* * Great, it looks like we might have a frame. Go ahead and * decode it. */ - sbus_decode(now); partial_frame_count = 0; - -out: - /* - * If we have seen a frame in the last 200ms, we consider ourselves 'locked' - */ - return (now - last_frame_time) < 200000; + return sbus_decode(now, values, num_values); } /* @@ -199,13 +193,13 @@ static const struct sbus_bit_pick sbus_decoder[SBUS_INPUT_CHANNELS][3] = { /* 15 */ { {20, 5, 0x07, 0}, {21, 0, 0xff, 3}, { 0, 0, 0x00, 0} } }; -static void -sbus_decode(hrt_abstime frame_time) +static bool +sbus_decode(hrt_abstime frame_time, uint16_t *values, uint16_t *num_values) { /* check frame boundary markers to avoid out-of-sync cases */ if ((frame[0] != 0x0f) || (frame[24] != 0x00)) { sbus_frame_drops++; - return; + return false; } /* if the failsafe or connection lost bit is set, we consider the frame invalid */ @@ -213,8 +207,8 @@ sbus_decode(hrt_abstime frame_time) (frame[23] & (1 << 3))) { /* failsafe */ /* actively announce signal loss */ - system_state.rc_channels = 0; - return 1; + *values = 0; + return false; } /* we have received something we think is a frame */ @@ -241,23 +235,21 @@ sbus_decode(hrt_abstime frame_time) } /* convert 0-2048 values to 1000-2000 ppm encoding in a very sloppy fashion */ - system_state.rc_channel_data[channel] = (value / 2) + 998; + values[channel] = (value / 2) + 998; } /* decode switch channels if data fields are wide enough */ - if (chancount > 17) { + if (PX4IO_INPUT_CHANNELS > 17 && chancount > 15) { + chancount = 18; + /* channel 17 (index 16) */ - system_state.rc_channel_data[16] = (frame[23] & (1 << 0)) * 1000 + 998; + values[16] = (frame[23] & (1 << 0)) * 1000 + 998; /* channel 18 (index 17) */ - system_state.rc_channel_data[17] = (frame[23] & (1 << 1)) * 1000 + 998; + values[17] = (frame[23] & (1 << 1)) * 1000 + 998; } /* note the number of channels decoded */ - system_state.rc_channels = chancount; - - /* and note that we have received data from the R/C controller */ - system_state.rc_channels_timestamp = frame_time; + *num_values = chancount; - /* trigger an immediate report to the FMU */ - system_state.fmu_report_due = true; + return true; } diff --git a/apps/sensors/sensors.cpp b/apps/sensors/sensors.cpp index d8d200ea9..edff8828f 100644 --- a/apps/sensors/sensors.cpp +++ b/apps/sensors/sensors.cpp @@ -1074,36 +1074,6 @@ Sensors::adc_poll(struct sensor_combined_s &raw) void Sensors::ppm_poll() { - /* fake low-level driver, directly pulling from driver variables */ - static orb_advert_t rc_input_pub = -1; - struct rc_input_values raw; - - raw.timestamp = ppm_last_valid_decode; - /* we are accepting this message */ - _ppm_last_valid = ppm_last_valid_decode; - - /* - * relying on two decoded channels is very noise-prone, - * in particular if nothing is connected to the pins. - * requiring a minimum of four channels - */ - if (ppm_decoded_channels > 4 && hrt_absolute_time() - _ppm_last_valid < PPM_INPUT_TIMEOUT_INTERVAL) { - - for (unsigned i = 0; i < ppm_decoded_channels; i++) { - raw.values[i] = ppm_buffer[i]; - } - - raw.channel_count = ppm_decoded_channels; - - /* publish to object request broker */ - if (rc_input_pub <= 0) { - rc_input_pub = orb_advertise(ORB_ID(input_rc), &raw); - - } else { - orb_publish(ORB_ID(input_rc), rc_input_pub, &raw); - } - } - /* read low-level values from FMU or IO RC inputs (PPM, Spektrum, S.Bus) */ bool rc_updated; diff --git a/apps/systemcmds/i2c/Makefile b/apps/systemcmds/i2c/Makefile new file mode 100644 index 000000000..046e74757 --- /dev/null +++ b/apps/systemcmds/i2c/Makefile @@ -0,0 +1,42 @@ +############################################################################ +# +# Copyright (C) 2012 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. +# +############################################################################ + +# +# Build the i2c test tool. +# + +APPNAME = i2c +PRIORITY = SCHED_PRIORITY_DEFAULT +STACKSIZE = 4096 + +include $(APPDIR)/mk/app.mk diff --git a/apps/systemcmds/i2c/i2c.c b/apps/systemcmds/i2c/i2c.c new file mode 100644 index 000000000..e1babdc12 --- /dev/null +++ b/apps/systemcmds/i2c/i2c.c @@ -0,0 +1,140 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: Lorenz Meier <lm@inf.ethz.ch> + * + * 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 i2c.c + * + * i2c hacking tool + */ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/mount.h> +#include <sys/ioctl.h> +#include <sys/stat.h> + +#include <nuttx/i2c.h> + +#include <arch/board/board.h> + +#include "systemlib/systemlib.h" +#include "systemlib/err.h" + +#ifndef PX4_I2C_BUS_ONBOARD +# error PX4_I2C_BUS_ONBOARD not defined, no device interface +#endif +#ifndef PX4_I2C_OBDEV_PX4IO +# error PX4_I2C_OBDEV_PX4IO not defined +#endif + +__EXPORT int i2c_main(int argc, char *argv[]); + +static int transfer(uint8_t address, uint8_t *send, unsigned send_len, uint8_t *recv, unsigned recv_len); + +static struct i2c_dev_s *i2c; + +int i2c_main(int argc, char *argv[]) +{ + /* find the right I2C */ + i2c = up_i2cinitialize(PX4_I2C_BUS_ONBOARD); + + if (i2c == NULL) + errx(1, "failed to locate I2C bus"); + + usleep(100000); + + uint8_t buf[] = { 0, 4}; + int ret = transfer(PX4_I2C_OBDEV_PX4IO, buf, sizeof(buf), NULL, 0); + + if (ret) + errx(1, "send failed - %d", ret); + + uint32_t val; + ret = transfer(PX4_I2C_OBDEV_PX4IO, NULL, 0, (uint8_t *)&val, sizeof(val)); + if (ret) + errx(1, "recive failed - %d", ret); + + errx(0, "got 0x%08x", val); +} + +static int +transfer(uint8_t address, uint8_t *send, unsigned send_len, uint8_t *recv, unsigned recv_len) +{ + struct i2c_msg_s msgv[2]; + unsigned msgs; + int ret; + + // debug("transfer out %p/%u in %p/%u", send, send_len, recv, recv_len); + + msgs = 0; + + if (send_len > 0) { + msgv[msgs].addr = address; + msgv[msgs].flags = 0; + msgv[msgs].buffer = send; + msgv[msgs].length = send_len; + msgs++; + } + + if (recv_len > 0) { + msgv[msgs].addr = address; + msgv[msgs].flags = I2C_M_READ; + msgv[msgs].buffer = recv; + msgv[msgs].length = recv_len; + msgs++; + } + + if (msgs == 0) + return -1; + + /* + * I2C architecture means there is an unavoidable race here + * if there are any devices on the bus with a different frequency + * preference. Really, this is pointless. + */ + I2C_SETFREQUENCY(i2c, 400000); + ret = I2C_TRANSFER(i2c, &msgv[0], msgs); + + // reset the I2C bus to unwedge on error + if (ret != OK) + up_i2creset(i2c); + + return ret; +} diff --git a/apps/uORB/topics/actuator_controls_effective.h b/apps/uORB/topics/actuator_controls_effective.h index 40278c56c..088c4fc8f 100644 --- a/apps/uORB/topics/actuator_controls_effective.h +++ b/apps/uORB/topics/actuator_controls_effective.h @@ -37,8 +37,8 @@ * Actuator control topics - mixer inputs. * * Values published to these topics are the outputs of the vehicle control - * system, and are expected to be mixed and used to drive the actuators - * (servos, speed controls, etc.) that operate the vehicle. + * system and mixing process; they are the control-scale values that are + * then fed to the actual actuator driver. * * Each topic can be published by a single controller */ diff --git a/apps/uORB/topics/vehicle_status.h b/apps/uORB/topics/vehicle_status.h index 06b4c5ca5..893e34537 100644 --- a/apps/uORB/topics/vehicle_status.h +++ b/apps/uORB/topics/vehicle_status.h @@ -156,7 +156,9 @@ struct vehicle_status_s enum VEHICLE_FLIGHT_MODE flight_mode; /**< current flight mode, as defined by mode switch */ enum VEHICLE_MANUAL_CONTROL_MODE manual_control_mode; /**< current attitude control mode, as defined by VEHICLE_ATTITUDE_MODE enum */ enum VEHICLE_MANUAL_SAS_MODE manual_sas_mode; /**< current stabilization mode */ - int32_t system_type; /**< system type, inspired by MAVLinks VEHICLE_TYPE enum */ + int32_t system_type; /**< system type, inspired by MAVLink's VEHICLE_TYPE enum */ + int32_t system_id; /**< system id, inspired by MAVLink's system ID field */ + int32_t component_id; /**< subsystem / component id, inspired by MAVLink's component ID field */ /* system flags - these represent the state predicates */ @@ -171,7 +173,7 @@ struct vehicle_status_s bool flag_control_position_enabled; /**< true if position is controlled */ bool flag_preflight_gyro_calibration; /**< true if gyro calibration is requested */ - bool flag_preflight_mag_calibration; /**< true if mag calibration is requested */ + bool flag_preflight_mag_calibration; /**< true if mag calibration is requested */ bool flag_preflight_accel_calibration; bool rc_signal_found_once; @@ -209,6 +211,7 @@ struct vehicle_status_s bool flag_auto_flight_mode_ok; /**< conditions of vector flight mode apply plus a valid takeoff position lock has been aquired */ bool flag_external_manual_override_ok; /**< external override non-fatal for system. Only true for fixed wing */ bool flag_valid_launch_position; /**< indicates a valid launch position */ + bool flag_valid_home_position; /**< indicates a valid home position (a valid home position is not always a valid launch) */ }; /** diff --git a/nuttx/arch/arm/src/stm32/stm32_i2c.c b/nuttx/arch/arm/src/stm32/stm32_i2c.c index 82ae6af5f..05c3f7095 100644 --- a/nuttx/arch/arm/src/stm32/stm32_i2c.c +++ b/nuttx/arch/arm/src/stm32/stm32_i2c.c @@ -185,6 +185,22 @@ enum stm32_trace_e I2CEVENT_ERROR /* Error occurred, param = 0 */ }; +#ifdef CONFIG_I2C_TRACE +static const char *stm32_trace_names[] = { + "NONE ", + "SENDADDR ", + "SENDBYTE ", + "ITBUFEN ", + "RCVBYTE ", + "REITBUFEN ", + "DISITBUFEN", + "BTFNOSTART", + "BTFRESTART", + "BTFSTOP ", + "ERROR " +}; +#endif + /* Trace data */ struct stm32_trace_s @@ -846,6 +862,7 @@ static void stm32_i2c_traceevent(FAR struct stm32_i2c_priv_s *priv, trace->event = event; trace->parm = parm; + trace->time = clock_systimer(); /* Bump up the trace index (unless we are out of trace entries) */ @@ -869,8 +886,8 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv) for (i = 0; i <= priv->tndx; i++) { trace = &priv->trace[i]; - syslog("%2d. STATUS: %08x COUNT: %3d EVENT: %2d PARM: %08x TIME: %d\n", - i+1, trace->status, trace->count, trace->event, trace->parm, + syslog("%2d. STATUS: %08x COUNT: %3d EVENT: %s PARM: %08x TIME: %d\n", + i+1, trace->status, trace->count, stm32_trace_names[trace->event], trace->parm, trace->time - priv->start_time); } } @@ -1620,8 +1637,8 @@ static int stm32_i2c_process(FAR struct i2c_dev_s *dev, FAR struct i2c_msg_s *ms status = stm32_i2c_getstatus(priv); errval = ETIMEDOUT; - i2cdbg("Timed out: CR1: %04x status: %08x\n", - stm32_i2c_getreg(priv, STM32_I2C_CR1_OFFSET), status); + i2cdbg("Timed out: CR1: %04x status: %08x after %d\n", + stm32_i2c_getreg(priv, STM32_I2C_CR1_OFFSET), status, timeout_us); /* "Note: When the STOP, START or PEC bit is set, the software must * not perform any write access to I2C_CR1 before this bit is @@ -2005,7 +2022,7 @@ int up_i2creset(FAR struct i2c_dev_s * dev) /* Give up if we have tried too hard */ - if (clock_count++ > 1000) + if (clock_count++ > CONFIG_STM32_I2CTIMEOTICKS) { goto out; } diff --git a/nuttx/configs/px4fmu/include/board.h b/nuttx/configs/px4fmu/include/board.h index 3f0f26ba1..8ad56a4c6 100755 --- a/nuttx/configs/px4fmu/include/board.h +++ b/nuttx/configs/px4fmu/include/board.h @@ -299,7 +299,7 @@ #define PX4_I2C_OBDEV_EEPROM NOTDEFINED #define PX4_I2C_OBDEV_PX4IO_BL 0x18 -#define PX4_I2C_OBDEV_PX4IO 0x19 +#define PX4_I2C_OBDEV_PX4IO 0x1a /* * SPI diff --git a/nuttx/configs/px4fmu/nsh/appconfig b/nuttx/configs/px4fmu/nsh/appconfig index 5518548a6..2bf3283c8 100644 --- a/nuttx/configs/px4fmu/nsh/appconfig +++ b/nuttx/configs/px4fmu/nsh/appconfig @@ -46,14 +46,18 @@ CONFIGURED_APPS += systemlib CONFIGURED_APPS += systemlib/mixer # Math library +ifneq ($(CONFIG_APM),y) CONFIGURED_APPS += mathlib CONFIGURED_APPS += mathlib/CMSIS CONFIGURED_APPS += examples/math_demo +endif # Control library +ifneq ($(CONFIG_APM),y) CONFIGURED_APPS += controllib CONFIGURED_APPS += examples/control_demo CONFIGURED_APPS += examples/kalman_demo +endif # System utility commands CONFIGURED_APPS += systemcmds/reboot @@ -77,7 +81,7 @@ CONFIGURED_APPS += systemcmds/delay_test # Tutorial code from # https://pixhawk.ethz.ch/px4/dev/debug_values -CONFIGURED_APPS += examples/px4_mavlink_debug +# CONFIGURED_APPS += examples/px4_mavlink_debug # Shared object broker; required by many parts of the system. CONFIGURED_APPS += uORB @@ -87,6 +91,8 @@ CONFIGURED_APPS += mavlink_onboard CONFIGURED_APPS += commander CONFIGURED_APPS += sdlog CONFIGURED_APPS += sensors + +ifneq ($(CONFIG_APM),y) CONFIGURED_APPS += ardrone_interface CONFIGURED_APPS += multirotor_att_control CONFIGURED_APPS += multirotor_pos_control @@ -96,10 +102,11 @@ CONFIGURED_APPS += fixedwing_pos_control CONFIGURED_APPS += position_estimator CONFIGURED_APPS += attitude_estimator_ekf CONFIGURED_APPS += hott_telemetry +endif # Hacking tools #CONFIGURED_APPS += system/i2c -#CONFIGURED_APPS += tools/i2c_dev +CONFIGURED_APPS += systemcmds/i2c # Communication and Drivers CONFIGURED_APPS += drivers/boards/px4fmu diff --git a/nuttx/configs/px4fmu/nsh/defconfig b/nuttx/configs/px4fmu/nsh/defconfig index 5a54e350c..130886aac 100755 --- a/nuttx/configs/px4fmu/nsh/defconfig +++ b/nuttx/configs/px4fmu/nsh/defconfig @@ -369,11 +369,12 @@ CONFIG_I2C_WRITEREAD=y # I2C configuration # CONFIG_I2C=y -CONFIG_I2C_POLLED=y +CONFIG_I2C_POLLED=n CONFIG_I2C_TRANSFER=y CONFIG_I2C_TRACE=n CONFIG_I2C_RESET=y - +# XXX fixed per-transaction timeout +CONFIG_STM32_I2CTIMEOMS=10 # XXX re-enable after integration testing @@ -778,6 +779,7 @@ CONFIG_NXFFS_MAXNAMLEN=32 CONFIG_NXFFS_TAILTHRESHOLD=2048 CONFIG_NXFFS_PREALLOCATED=y CONFIG_FS_ROMFS=y +CONFIG_FS_BINFS=y # # SPI-based MMC/SD driver diff --git a/nuttx/configs/px4io/io/defconfig b/nuttx/configs/px4io/io/defconfig index 1185813db..1145fb349 100755 --- a/nuttx/configs/px4io/io/defconfig +++ b/nuttx/configs/px4io/io/defconfig @@ -86,7 +86,7 @@ CONFIG_ARCH_BOOTLOADER=n CONFIG_ARCH_LEDS=n CONFIG_ARCH_BUTTONS=n CONFIG_ARCH_CALIBRATION=n -CONFIG_ARCH_DMA=n +CONFIG_ARCH_DMA=y CONFIG_ARCH_MATH_H=y CONFIG_ARMV7M_CMNVECTOR=y @@ -112,7 +112,7 @@ CONFIG_STM32_JTAG_SW_ENABLE=n # Individual subsystems can be enabled: # # AHB: -CONFIG_STM32_DMA1=n +CONFIG_STM32_DMA1=y CONFIG_STM32_DMA2=n CONFIG_STM32_CRC=n # APB1: @@ -189,6 +189,12 @@ CONFIG_USART1_2STOP=0 CONFIG_USART2_2STOP=0 CONFIG_USART3_2STOP=0 +CONFIG_USART1_RXDMA=y +SERIAL_HAVE_CONSOLE_DMA=y +# Conflicts with I2C1 DMA +CONFIG_USART2_RXDMA=n +CONFIG_USART3_RXDMA=y + # # PX4IO specific driver settings # @@ -399,7 +405,7 @@ CONFIG_DISABLE_SIGNALS=y CONFIG_DISABLE_MQUEUE=y CONFIG_DISABLE_MOUNTPOINT=y CONFIG_DISABLE_ENVIRON=y -CONFIG_DISABLE_POLL=n +CONFIG_DISABLE_POLL=y # # Misc libc settings @@ -469,12 +475,12 @@ CONFIG_ARCH_BZERO=n # timer structures to minimize dynamic allocations. Set to # zero for all dynamic allocations. # -CONFIG_MAX_TASKS=8 +CONFIG_MAX_TASKS=4 CONFIG_MAX_TASK_ARGS=4 -CONFIG_NPTHREAD_KEYS=4 +CONFIG_NPTHREAD_KEYS=2 CONFIG_NFILE_DESCRIPTORS=8 CONFIG_NFILE_STREAMS=0 -CONFIG_NAME_MAX=32 +CONFIG_NAME_MAX=12 CONFIG_STDIO_BUFFER_SIZE=32 CONFIG_STDIO_LINEBUFFER=n CONFIG_NUNGET_CHARS=2 @@ -535,7 +541,7 @@ CONFIG_BOOT_COPYTORAM=n CONFIG_CUSTOM_STACK=n CONFIG_STACK_POINTER= CONFIG_IDLETHREAD_STACKSIZE=1024 -CONFIG_USERMAIN_STACKSIZE=1024 +CONFIG_USERMAIN_STACKSIZE=800 CONFIG_PTHREAD_STACK_MIN=512 CONFIG_PTHREAD_STACK_DEFAULT=1024 CONFIG_HEAP_BASE= |