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ardupilot/libraries/AP_BoardConfig/board_drivers.cpp

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/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* AP_BoardConfig - px4 driver loading and setup
*/
#include <AP_HAL/AP_HAL.h>
#include "AP_BoardConfig.h"
#include <stdio.h>
extern const AP_HAL::HAL& hal;
#if AP_FEATURE_SAFETY_BUTTON
/*
init safety state
*/
void AP_BoardConfig::board_init_safety()
{
if (state.safety_enable.get() == 0) {
hal.rcout->force_safety_off();
hal.rcout->force_safety_no_wait();
// wait until safety has been turned off
uint8_t count = 20;
while (hal.util->safety_switch_state() != AP_HAL::Util::SAFETY_ARMED && count--) {
hal.scheduler->delay(20);
}
}
}
#endif
#if AP_FEATURE_BOARD_DETECT
AP_BoardConfig::px4_board_type AP_BoardConfig::px4_configured_board;
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V4)
extern "C" {
int fmu_main(int, char **);
};
#endif
void AP_BoardConfig::board_setup_drivers(void)
{
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V4)
/*
this works around an issue with some FMUv4 hardware (eg. copies
of the Pixracer) which have incorrect components leading to
sensor brownout on boot
*/
if (px4_start_driver(fmu_main, "fmu", "sensor_reset 20")) {
printf("FMUv4 sensor reset complete\n");
}
#endif
if (state.board_type == PX4_BOARD_OLDDRIVERS) {
printf("Old drivers no longer supported\n");
state.board_type = PX4_BOARD_AUTO;
}
// run board auto-detection
board_autodetect();
if (state.board_type == PX4_BOARD_PH2SLIM ||
state.board_type == PX4_BOARD_PIXHAWK2) {
_imu_target_temperature.set_default(45);
if (_imu_target_temperature.get() < 0) {
// don't allow a value of -1 on the cube, or it could cook
// the IMU
_imu_target_temperature.set(45);
}
}
px4_configured_board = (enum px4_board_type)state.board_type.get();
switch (px4_configured_board) {
case PX4_BOARD_PX4V1:
case PX4_BOARD_PIXHAWK:
case PX4_BOARD_PIXHAWK2:
case PX4_BOARD_SP01:
case PX4_BOARD_PIXRACER:
case PX4_BOARD_PHMINI:
case PX4_BOARD_AUAV21:
case PX4_BOARD_PH2SLIM:
case VRX_BOARD_BRAIN51:
case VRX_BOARD_BRAIN52:
case VRX_BOARD_BRAIN52E:
case VRX_BOARD_UBRAIN51:
case VRX_BOARD_UBRAIN52:
case VRX_BOARD_CORE10:
case VRX_BOARD_BRAIN54:
case PX4_BOARD_AEROFC:
case PX4_BOARD_PIXHAWK_PRO:
case PX4_BOARD_PCNC1:
case PX4_BOARD_MINDPXV2:
break;
default:
sensor_config_error("Unknown board type");
break;
}
}
/*
check a SPI device for a register value
*/
bool AP_BoardConfig::spi_check_register(const char *devname, uint8_t regnum, uint8_t value, uint8_t read_flag)
{
auto dev = hal.spi->get_device(devname);
if (!dev) {
hal.console->printf("%s: no device\n", devname);
return false;
}
dev->set_read_flag(read_flag);
if (!dev->get_semaphore()->take(HAL_SEMAPHORE_BLOCK_FOREVER)) {
return false;
}
uint8_t v;
if (!dev->read_registers(regnum, &v, 1)) {
hal.console->printf("%s: reg %02x read fail\n", devname, (unsigned)regnum);
dev->get_semaphore()->give();
return false;
}
dev->get_semaphore()->give();
hal.console->printf("%s: reg %02x expected:%02x got:%02x\n", devname, (unsigned)regnum, (unsigned)value, (unsigned)v);
return v == value;
}
#define MPUREG_WHOAMI 0x75
#define MPU_WHOAMI_MPU60X0 0x68
#define MPU_WHOAMI_MPU9250 0x71
#define MPU_WHOAMI_ICM20608 0xaf
#define MPU_WHOAMI_ICM20602 0x12
#define LSMREG_WHOAMI 0x0f
#define LSM_WHOAMI_LSM303D 0x49
/*
validation of the board type
*/
void AP_BoardConfig::validate_board_type(void)
{
/* some boards can be damaged by the user setting the wrong board
type. The key one is the cube which has a heater which can
cook the IMUs if the user uses an old paramater file. We
override the board type for that specific case
*/
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V2) || defined(HAL_CHIBIOS_ARCH_FMUV3)
if (state.board_type == PX4_BOARD_PIXHAWK &&
(spi_check_register("mpu6000_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU60X0) ||
spi_check_register("mpu9250_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU9250) ||
spi_check_register("icm20608", MPUREG_WHOAMI, MPU_WHOAMI_ICM20608) ||
spi_check_register("icm20608_ext", MPUREG_WHOAMI, MPU_WHOAMI_ICM20602)) &&
spi_check_register("lsm9ds0_ext_am", LSMREG_WHOAMI, LSM_WHOAMI_LSM303D)) {
// Pixhawk2 has LSM303D and MPUxxxx on external bus. If we
// detect those, then force PIXHAWK2, even if the user has
// configured for PIXHAWK1
#if !defined(CONFIG_ARCH_BOARD_PX4FMU_V3) && !defined(HAL_CHIBIOS_ARCH_FMUV3)
// force user to load the right firmware
sensor_config_error("Pixhawk2 requires FMUv3 firmware");
#endif
state.board_type.set(PX4_BOARD_PIXHAWK2);
hal.console->printf("Forced PIXHAWK2\n");
}
#endif
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V4PRO)
// Nothing to do for the moment
#endif
}
/*
auto-detect board type
*/
void AP_BoardConfig::board_autodetect(void)
{
if (state.board_type != PX4_BOARD_AUTO) {
validate_board_type();
// user has chosen a board type
return;
}
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V1)
// only one choice
state.board_type.set(PX4_BOARD_PX4V1);
hal.console->printf("Detected PX4v1\n");
#elif defined(CONFIG_ARCH_BOARD_PX4FMU_V2) || defined(HAL_CHIBIOS_ARCH_FMUV3)
if ((spi_check_register("mpu6000_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU60X0) ||
spi_check_register("mpu6000_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU60X0) ||
spi_check_register("mpu9250_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU60X0) ||
spi_check_register("mpu9250_ext", MPUREG_WHOAMI, MPU_WHOAMI_MPU9250) ||
spi_check_register("icm20608_ext", MPUREG_WHOAMI, MPU_WHOAMI_ICM20608) ||
spi_check_register("icm20608_ext", MPUREG_WHOAMI, MPU_WHOAMI_ICM20602)) &&
spi_check_register("lsm9ds0_ext_am", LSMREG_WHOAMI, LSM_WHOAMI_LSM303D)) {
// Pixhawk2 has LSM303D and MPUxxxx on external bus
state.board_type.set(PX4_BOARD_PIXHAWK2);
hal.console->printf("Detected PIXHAWK2\n");
} else if ((spi_check_register("icm20608-am", MPUREG_WHOAMI, MPU_WHOAMI_ICM20608) ||
spi_check_register("icm20608-am", MPUREG_WHOAMI, MPU_WHOAMI_ICM20602)) &&
spi_check_register("mpu9250", MPUREG_WHOAMI, MPU_WHOAMI_MPU9250)) {
// PHMINI has an ICM20608 and MPU9250 on sensor bus
state.board_type.set(PX4_BOARD_PHMINI);
hal.console->printf("Detected PixhawkMini\n");
} else if (spi_check_register("lsm9ds0_am", LSMREG_WHOAMI, LSM_WHOAMI_LSM303D) &&
(spi_check_register("mpu6000", MPUREG_WHOAMI, MPU_WHOAMI_MPU60X0) ||
spi_check_register("icm20608", MPUREG_WHOAMI, MPU_WHOAMI_ICM20608) ||
spi_check_register("icm20608", MPUREG_WHOAMI, MPU_WHOAMI_ICM20602) ||
spi_check_register("mpu9250", MPUREG_WHOAMI, MPU_WHOAMI_MPU9250))) {
// classic or upgraded Pixhawk1
state.board_type.set(PX4_BOARD_PIXHAWK);
hal.console->printf("Detected Pixhawk\n");
} else {
sensor_config_error("Unable to detect board type");
}
#elif defined(CONFIG_ARCH_BOARD_PX4FMU_V4) || defined(HAL_CHIBIOS_ARCH_FMUV4)
// only one choice
state.board_type.set_and_notify(PX4_BOARD_PIXRACER);
hal.console->printf("Detected Pixracer\n");
#elif defined(HAL_CHIBIOS_ARCH_MINDPXV2)
// only one choice
state.board_type.set_and_notify(PX4_BOARD_MINDPXV2);
hal.console->printf("Detected MindPX-V2\n");
#elif defined(CONFIG_ARCH_BOARD_PX4FMU_V4PRO)
// only one choice
state.board_type.set_and_notify(PX4_BOARD_PIXHAWK_PRO);
hal.console->printf("Detected Pixhawk Pro\n");
#elif defined(CONFIG_ARCH_BOARD_AEROFC_V1)
state.board_type.set_and_notify(PX4_BOARD_AEROFC);
hal.console->printf("Detected Aero FC\n");
#elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V51)
state.board_type.set_and_notify(VRX_BOARD_BRAIN51);
hal.console->printf("Detected VR Brain 5.1\n");
#elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V52)
state.board_type.set_and_notify(VRX_BOARD_BRAIN52);
hal.console->printf("Detected VR Brain 5.2\n");
#elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V52E)
state.board_type.set_and_notify(VRX_BOARD_BRAIN52E);
hal.console->printf("Detected VR Brain 5.2E\n");
#elif defined(CONFIG_ARCH_BOARD_VRUBRAIN_V51)
state.board_type.set_and_notify(VRX_BOARD_UBRAIN51);
hal.console->printf("Detected VR Micro Brain 5.1\n");
#elif defined(CONFIG_ARCH_BOARD_VRUBRAIN_V52)
state.board_type.set_and_notify(VRX_BOARD_UBRAIN52);
hal.console->printf("Detected VR Micro Brain 5.2\n");
#elif defined(CONFIG_ARCH_BOARD_VRCORE_V10)
state.board_type.set_and_notify(VRX_BOARD_CORE10);
hal.console->printf("Detected VR Core 1.0\n");
#elif defined(CONFIG_ARCH_BOARD_VRBRAIN_V54)
state.board_type.set_and_notify(VRX_BOARD_BRAIN54);
hal.console->printf("Detected VR Brain 5.4\n");
#endif
}
#endif // AP_FEATURE_BOARD_DETECT
/*
setup flow control on UARTs
*/
void AP_BoardConfig::board_setup_uart()
{
#if AP_FEATURE_RTSCTS
hal.uartC->set_flow_control((AP_HAL::UARTDriver::flow_control)state.ser1_rtscts.get());
if (hal.uartD != nullptr) {
hal.uartD->set_flow_control((AP_HAL::UARTDriver::flow_control)state.ser2_rtscts.get());
}
#endif
}
/*
setup SBUS
*/
void AP_BoardConfig::board_setup_sbus(void)
{
#if AP_FEATURE_SBUS_OUT
if (state.sbus_out_rate.get() >= 1) {
static const struct {
uint8_t value;
uint16_t rate;
} rates[] = {
{ 1, 50 },
{ 2, 75 },
{ 3, 100 },
{ 4, 150 },
{ 5, 200 },
{ 6, 250 },
{ 7, 300 }
};
uint16_t rate = 300;
for (uint8_t i=0; i<ARRAY_SIZE(rates); i++) {
if (rates[i].value == state.sbus_out_rate) {
rate = rates[i].rate;
}
}
if (!hal.rcout->enable_px4io_sbus_out(rate)) {
hal.console->printf("Failed to enable SBUS out\n");
}
}
#endif
}
/*
setup peripherals and drivers
*/
void AP_BoardConfig::board_setup()
{
#if CONFIG_HAL_BOARD == HAL_BOARD_PX4 || CONFIG_HAL_BOARD == HAL_BOARD_VRBRAIN
px4_setup_peripherals();
px4_setup_pwm();
px4_setup_safety_mask();
#elif CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
// init needs to be done after boardconfig is read so parameters are set
hal.gpio->init();
hal.rcin->init();
hal.rcout->init();
#endif
board_setup_uart();
board_setup_sbus();
#if AP_FEATURE_BOARD_DETECT
board_setup_drivers();
#endif
}
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