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Merge pull request #638 from PX4/mk_interface 

Mk interface
This commit is contained in:
Lorenz Meier 2014-02-05 11:27:13 +01:00
parent a7218770b3 399d59483e
commit 1ea3f92edf
2 changed files with 96 additions and 364 deletions
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2
makefiles/config_px4fmu-v2_default.mk
View File

@ -38,6 +38,8 @@ MODULES += drivers/ets_airspeed
MODULES += drivers/meas_airspeed
MODULES += drivers/frsky_telemetry
MODULES += modules/sensors
MODULES += drivers/mkblctrl
# Needs to be burned to the ground and re-written; for now,
# just don't build it.

458
src/drivers/mkblctrl/mkblctrl.cpp
View File

@ -1,6 +1,6 @@
/****************************************************************************
*
* Copyright (C) 2012,2013 PX4 Development Team. All rights reserved.
* Copyright (C) 2012-2014 PX4 Development Team. All rights reserved.
* Author: Marco Bauer <marco@wtns.de>
*
* Redistribution and use in source and binary forms, with or without
@ -65,7 +65,6 @@
#include <drivers/device/device.h>
#include <drivers/drv_pwm_output.h>
#include <drivers/drv_gpio.h>
#include <drivers/drv_hrt.h>
#include <drivers/drv_rc_input.h>
@ -93,16 +92,12 @@
#define MOTOR_SPINUP_COUNTER 30
#define ESC_UORB_PUBLISH_DELAY 500000
class MK : public device::I2C
{
public:
enum Mode {
MODE_NONE,
MODE_2PWM,
MODE_4PWM,
MODE_6PWM,
};
enum MappingMode {
MAPPING_MK = 0,
MAPPING_PX4,
@ -120,8 +115,7 @@ public:
virtual int init(unsigned motors);
virtual ssize_t write(file *filp, const char *buffer, size_t len);
int set_mode(Mode mode);
int set_pwm_rate(unsigned rate);
int set_update_rate(unsigned rate);
int set_motor_count(unsigned count);
int set_motor_test(bool motortest);
int set_overrideSecurityChecks(bool overrideSecurityChecks);
@ -133,7 +127,6 @@ private:
static const unsigned _max_actuators = MAX_MOTORS;
static const bool showDebug = false;
Mode _mode;
int _update_rate;
int _current_update_rate;
int _task;
@ -180,33 +173,15 @@ private:
static const GPIOConfig _gpio_tab[];
static const unsigned _ngpio;
void gpio_reset(void);
void gpio_set_function(uint32_t gpios, int function);
void gpio_write(uint32_t gpios, int function);
uint32_t gpio_read(void);
int gpio_ioctl(file *filp, int cmd, unsigned long arg);
int mk_servo_arm(bool status);
int mk_servo_set(unsigned int chan, short val);
int mk_servo_set_value(unsigned int chan, short val);
int mk_servo_test(unsigned int chan);
short scaling(float val, float inMin, float inMax, float outMin, float outMax);
};
const MK::GPIOConfig MK::_gpio_tab[] = {
{GPIO_GPIO0_INPUT, GPIO_GPIO0_OUTPUT, 0},
{GPIO_GPIO1_INPUT, GPIO_GPIO1_OUTPUT, 0},
{GPIO_GPIO2_INPUT, GPIO_GPIO2_OUTPUT, GPIO_USART2_CTS_1},
{GPIO_GPIO3_INPUT, GPIO_GPIO3_OUTPUT, GPIO_USART2_RTS_1},
{GPIO_GPIO4_INPUT, GPIO_GPIO4_OUTPUT, GPIO_USART2_TX_1},
{GPIO_GPIO5_INPUT, GPIO_GPIO5_OUTPUT, GPIO_USART2_RX_1},
{GPIO_GPIO6_INPUT, GPIO_GPIO6_OUTPUT, GPIO_CAN2_TX_2},
{GPIO_GPIO7_INPUT, GPIO_GPIO7_OUTPUT, GPIO_CAN2_RX_2},
};
const unsigned MK::_ngpio = sizeof(MK::_gpio_tab) / sizeof(MK::_gpio_tab[0]);
const int blctrlAddr_quad_plus[] = { 2, 2, -2, -2, 0, 0, 0, 0 }; // Addresstranslator for Quad + configuration
const int blctrlAddr_hexa_plus[] = { 0, 2, 2, -2, 1, -3, 0, 0 }; // Addresstranslator for Hexa + configuration
@ -247,8 +222,7 @@ MK *g_mk;
MK::MK(int bus, const char *_device_path) :
I2C("mkblctrl", "/dev/mkblctrl", bus, 0, I2C_BUS_SPEED),
_mode(MODE_NONE),
_update_rate(50),
_update_rate(400),
_task(-1),
_t_actuators(-1),
_t_actuator_armed(-1),
@ -317,26 +291,23 @@ MK::init(unsigned motors)
usleep(500000);
if (sizeof(_device) > 0) {
ret = register_driver(_device, &fops, 0666, (void *)this);
if (sizeof(_device) > 0) {
ret = register_driver(_device, &fops, 0666, (void *)this);
if (ret == OK) {
if (ret == OK) {
log("creating alternate output device");
_primary_pwm_device = true;
}
}
/* reset GPIOs */
gpio_reset();
}
/* start the IO interface task */
_task = task_spawn_cmd("mkblctrl",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 20,
2048,
(main_t)&MK::task_main_trampoline,
nullptr);
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 20,
2048,
(main_t)&MK::task_main_trampoline,
nullptr);
if (_task < 0) {
@ -354,43 +325,7 @@ MK::task_main_trampoline(int argc, char *argv[])
}
int
MK::set_mode(Mode mode)
{
/*
* Configure for PWM output.
*
* Note that regardless of the configured mode, the task is always
* listening and mixing; the mode just selects which of the channels
* are presented on the output pins.
*/
switch (mode) {
case MODE_2PWM:
up_pwm_servo_deinit();
_update_rate = UPDATE_RATE; /* default output rate */
break;
case MODE_4PWM:
up_pwm_servo_deinit();
_update_rate = UPDATE_RATE; /* default output rate */
break;
case MODE_NONE:
debug("MODE_NONE");
/* disable servo outputs and set a very low update rate */
up_pwm_servo_deinit();
_update_rate = UPDATE_RATE;
break;
default:
return -EINVAL;
}
_mode = mode;
return OK;
}
int
MK::set_pwm_rate(unsigned rate)
MK::set_update_rate(unsigned rate)
{
if ((rate > 500) || (rate < 10))
return -EINVAL;
@ -621,11 +556,13 @@ MK::task_main()
}
}
if(!_overrideSecurityChecks) {
if (!_overrideSecurityChecks) {
/* don't go under BLCTRL_MIN_VALUE */
if (outputs.output[i] < BLCTRL_MIN_VALUE) {
outputs.output[i] = BLCTRL_MIN_VALUE;
}
}
/* output to BLCtrl's */
@ -675,21 +612,24 @@ MK::task_main()
esc.esc[i].esc_current = (uint16_t) Motor[i].Current;
esc.esc[i].esc_rpm = (uint16_t) 0;
esc.esc[i].esc_setpoint = (float) Motor[i].SetPoint_PX4;
if (Motor[i].Version == 1) {
// BLCtrl 2.0 (11Bit)
esc.esc[i].esc_setpoint_raw = (uint16_t) (Motor[i].SetPoint<<3) | Motor[i].SetPointLowerBits;
esc.esc[i].esc_setpoint_raw = (uint16_t)(Motor[i].SetPoint << 3) | Motor[i].SetPointLowerBits;
} else {
// BLCtrl < 2.0 (8Bit)
esc.esc[i].esc_setpoint_raw = (uint16_t) Motor[i].SetPoint;
}
esc.esc[i].esc_temperature = (uint16_t) Motor[i].Temperature;
esc.esc[i].esc_state = (uint16_t) Motor[i].State;
esc.esc[i].esc_errorcount = (uint16_t) 0;
// if motortest is requested - do it...
if (_motortest == true) {
mk_servo_test(i);
}
// if motortest is requested - do it...
if (_motortest == true) {
mk_servo_test(i);
}
}
@ -728,7 +668,7 @@ MK::mk_servo_arm(bool status)
unsigned int
MK::mk_check_for_blctrl(unsigned int count, bool showOutput, bool initI2C)
{
if(initI2C) {
if (initI2C) {
I2C::init();
}
@ -781,8 +721,8 @@ MK::mk_check_for_blctrl(unsigned int count, bool showOutput, bool initI2C)
fprintf(stderr, "[mkblctrl] blctrl[%i] : found=%i\tversion=%i\tcurrent=%i\tmaxpwm=%i\ttemperature=%i\n", i, Motor[i].State, Motor[i].Version, Motor[i].Current, Motor[i].MaxPWM, Motor[i].Temperature);
}
if(!_overrideSecurityChecks) {
if (!_overrideSecurityChecks) {
if (foundMotorCount != 4 && foundMotorCount != 6 && foundMotorCount != 8) {
_task_should_exit = true;
}
@ -811,8 +751,8 @@ MK::mk_servo_set(unsigned int chan, short val)
tmpVal = 0;
}
Motor[chan].SetPoint = (uint8_t)(tmpVal>>3)&0xff;
Motor[chan].SetPointLowerBits = ((uint8_t)tmpVal%8)&0x07;
Motor[chan].SetPoint = (uint8_t)(tmpVal >> 3) & 0xff;
Motor[chan].SetPointLowerBits = ((uint8_t)tmpVal % 8) & 0x07;
if (_armed == false) {
Motor[chan].SetPoint = 0;
@ -1019,28 +959,6 @@ MK::ioctl(file *filp, int cmd, unsigned long arg)
{
int ret;
// XXX disabled, confusing users
/* try it as a GPIO ioctl first */
ret = gpio_ioctl(filp, cmd, arg);
if (ret != -ENOTTY)
return ret;
/* if we are in valid PWM mode, try it as a PWM ioctl as well */
/*
switch (_mode) {
case MODE_2PWM:
case MODE_4PWM:
case MODE_6PWM:
ret = pwm_ioctl(filp, cmd, arg);
break;
default:
debug("not in a PWM mode");
break;
}
*/
ret = pwm_ioctl(filp, cmd, arg);
/* if nobody wants it, let CDev have it */
@ -1075,6 +993,10 @@ MK::pwm_ioctl(file *filp, int cmd, unsigned long arg)
ret = OK;
break;
case PWM_SERVO_GET_UPDATE_RATE:
*(uint32_t *)arg = _update_rate;
break;
case PWM_SERVO_SET_SELECT_UPDATE_RATE:
ret = OK;
break;
@ -1084,6 +1006,7 @@ MK::pwm_ioctl(file *filp, int cmd, unsigned long arg)
if (arg < 2150) {
Motor[cmd - PWM_SERVO_SET(0)].RawPwmValue = (unsigned short)arg;
mk_servo_set(cmd - PWM_SERVO_SET(0), scaling(arg, 1010, 2100, 0, 2047));
} else {
ret = -EINVAL;
}
@ -1198,139 +1121,10 @@ MK::write(file *filp, const char *buffer, size_t len)
return count * 2;
}
void
MK::gpio_reset(void)
{
/*
* Setup default GPIO config - all pins as GPIOs, GPIO driver chip
* to input mode.
*/
for (unsigned i = 0; i < _ngpio; i++)
stm32_configgpio(_gpio_tab[i].input);
stm32_gpiowrite(GPIO_GPIO_DIR, 0);
stm32_configgpio(GPIO_GPIO_DIR);
}
void
MK::gpio_set_function(uint32_t gpios, int function)
{
/*
* GPIOs 0 and 1 must have the same direction as they are buffered
* by a shared 2-port driver. Any attempt to set either sets both.
*/
if (gpios & 3) {
gpios |= 3;
/* flip the buffer to output mode if required */
if (GPIO_SET_OUTPUT == function)
stm32_gpiowrite(GPIO_GPIO_DIR, 1);
}
/* configure selected GPIOs as required */
for (unsigned i = 0; i < _ngpio; i++) {
if (gpios & (1 << i)) {
switch (function) {
case GPIO_SET_INPUT:
stm32_configgpio(_gpio_tab[i].input);
break;
case GPIO_SET_OUTPUT:
stm32_configgpio(_gpio_tab[i].output);
break;
case GPIO_SET_ALT_1:
if (_gpio_tab[i].alt != 0)
stm32_configgpio(_gpio_tab[i].alt);
break;
}
}
}
/* flip buffer to input mode if required */
if ((GPIO_SET_INPUT == function) && (gpios & 3))
stm32_gpiowrite(GPIO_GPIO_DIR, 0);
}
void
MK::gpio_write(uint32_t gpios, int function)
{
int value = (function == GPIO_SET) ? 1 : 0;
for (unsigned i = 0; i < _ngpio; i++)
if (gpios & (1 << i))
stm32_gpiowrite(_gpio_tab[i].output, value);
}
uint32_t
MK::gpio_read(void)
{
uint32_t bits = 0;
for (unsigned i = 0; i < _ngpio; i++)
if (stm32_gpioread(_gpio_tab[i].input))
bits |= (1 << i);
return bits;
}
int
MK::gpio_ioctl(struct file *filp, int cmd, unsigned long arg)
{
int ret = OK;
lock();
switch (cmd) {
case GPIO_RESET:
gpio_reset();
break;
case GPIO_SET_OUTPUT:
case GPIO_SET_INPUT:
case GPIO_SET_ALT_1:
gpio_set_function(arg, cmd);
break;
case GPIO_SET_ALT_2:
case GPIO_SET_ALT_3:
case GPIO_SET_ALT_4:
ret = -EINVAL;
break;
case GPIO_SET:
case GPIO_CLEAR:
gpio_write(arg, cmd);
break;
case GPIO_GET:
*(uint32_t *)arg = gpio_read();
break;
default:
ret = -ENOTTY;
}
unlock();
return ret;
}
namespace
{
enum PortMode {
PORT_MODE_UNSET = 0,
PORT_FULL_GPIO,
PORT_FULL_SERIAL,
PORT_FULL_PWM,
PORT_GPIO_AND_SERIAL,
PORT_PWM_AND_SERIAL,
PORT_PWM_AND_GPIO,
};
enum MappingMode {
MAPPING_MK = 0,
MAPPING_PX4,
@ -1341,20 +1135,11 @@ enum FrameType {
FRAME_X,
};
PortMode g_port_mode;
int
mk_new_mode(PortMode new_mode, int update_rate, int motorcount, bool motortest, int px4mode, int frametype, bool overrideSecurityChecks)
mk_new_mode(int update_rate, int motorcount, bool motortest, int px4mode, int frametype, bool overrideSecurityChecks)
{
uint32_t gpio_bits;
int shouldStop = 0;
MK::Mode servo_mode;
/* reset to all-inputs */
g_mk->ioctl(0, GPIO_RESET, 0);
gpio_bits = 0;
servo_mode = MK::MODE_NONE;
/* native PX4 addressing) */
g_mk->set_px4mode(px4mode);
@ -1368,7 +1153,6 @@ mk_new_mode(PortMode new_mode, int update_rate, int motorcount, bool motortest,
/* ovveride security checks if enabled */
g_mk->set_overrideSecurityChecks(overrideSecurityChecks);
/* count used motors */
do {
if (g_mk->mk_check_for_blctrl(8, false, false) != 0) {
@ -1383,86 +1167,54 @@ mk_new_mode(PortMode new_mode, int update_rate, int motorcount, bool motortest,
g_mk->set_motor_count(g_mk->mk_check_for_blctrl(8, true, false));
/* (re)set the PWM output mode */
g_mk->set_mode(servo_mode);
if ((servo_mode != MK::MODE_NONE) && (update_rate != 0))
g_mk->set_pwm_rate(update_rate);
g_mk->set_update_rate(update_rate);
return OK;
}
int
mk_start(unsigned bus, unsigned motors, char *device_path)
{
int ret = OK;
if (g_mk == nullptr) {
g_mk = new MK(bus, device_path);
if (g_mk == nullptr) {
ret = -ENOMEM;
} else {
ret = g_mk->init(motors);
if (ret != OK) {
delete g_mk;
g_mk = nullptr;
}
}
}
return ret;
}
int
mk_check_for_i2c_esc_bus(char *device_path, int motors)
mk_start(unsigned motors, char *device_path)
{
int ret;
if (g_mk == nullptr) {
// try i2c3 first
g_mk = new MK(3, device_path);
g_mk = new MK(3, device_path);
if (!g_mk)
return -ENOMEM;
if (g_mk == nullptr) {
return -1;
} else {
ret = g_mk->mk_check_for_blctrl(8, false, true);
delete g_mk;
g_mk = nullptr;
if (ret > 0) {
return 3;
}
}
g_mk = new MK(1, device_path);
if (g_mk == nullptr) {
return -1;
} else {
ret = g_mk->mk_check_for_blctrl(8, false, true);
delete g_mk;
g_mk = nullptr;
if (ret > 0) {
return 1;
}
if (OK == g_mk->init(motors)) {
warnx("[mkblctrl] scanning i2c3...\n");
ret = g_mk->mk_check_for_blctrl(8, false, true);
if (ret > 0) {
return OK;
}
}
return -1;
}
delete g_mk;
g_mk = nullptr;
// fallback to bus 1
g_mk = new MK(1, device_path);
if (!g_mk)
return -ENOMEM;
if (OK == g_mk->init(motors)) {
warnx("[mkblctrl] scanning i2c1...\n");
ret = g_mk->mk_check_for_blctrl(8, false, true);
if (ret > 0) {
return OK;
}
}
delete g_mk;
g_mk = nullptr;
return -ENXIO;
}
} // namespace
@ -1472,10 +1224,8 @@ extern "C" __EXPORT int mkblctrl_main(int argc, char *argv[]);
int
mkblctrl_main(int argc, char *argv[])
{
PortMode port_mode = PORT_FULL_PWM;
int pwm_update_rate_in_hz = UPDATE_RATE;
int motorcount = 8;
int bus = -1;
int px4mode = MAPPING_PX4;
int frametype = FRAME_PLUS; // + plus is default
bool motortest = false;
@ -1489,18 +1239,6 @@ mkblctrl_main(int argc, char *argv[])
*/
for (int i = 1; i < argc; i++) {
/* look for the optional i2c bus parameter */
if (strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "--bus") == 0) {
if (argc > i + 1) {
bus = atoi(argv[i + 1]);
newMode = true;
} else {
errx(1, "missing argument for i2c bus (-b)");
return 1;
}
}
/* look for the optional frame parameter */
if (strcmp(argv[i], "-mkmode") == 0 || strcmp(argv[i], "--mkmode") == 0) {
if (argc > i + 1) {
@ -1560,51 +1298,43 @@ mkblctrl_main(int argc, char *argv[])
fprintf(stderr, "mkblctrl: help:\n");
fprintf(stderr, " [-mkmode {+/x}] [-b i2c_bus_number] [-d devicename] [--override-security-checks] [-h / --help]\n\n");
fprintf(stderr, "\t -mkmode {+/x} \t\t Type of frame, if Mikrokopter motor order is used.\n");
fprintf(stderr, "\t -b {i2c_bus_number} \t\t Set the i2c bus where the ESCs are connected to (default autoscan).\n");
fprintf(stderr, "\t -d {devicepath & name}\t\t Create alternate pwm device.\n");
fprintf(stderr, "\t --override-security-checks \t\t Disable all security checks (arming and number of ESCs). Used to test single Motors etc. (DANGER !!!)\n");
fprintf(stderr, "\n");
fprintf(stderr, "Motortest:\n");
fprintf(stderr, "First you have to start mkblctrl, the you can enter Motortest Mode with:\n");
fprintf(stderr, "mkblctrl -t\n");
fprintf(stderr, "This will spin up once every motor in order of motoraddress. (DANGER !!!)\n");
fprintf(stderr, "This will spin up once every motor in order of motoraddress. (DANGER !!!)\n");
exit(1);
}
if (!motortest) {
if (g_mk == nullptr) {
if (bus == -1) {
bus = mk_check_for_i2c_esc_bus(devicepath, motorcount);
}
if (g_mk == nullptr) {
if (mk_start(motorcount, devicepath) != OK) {
errx(1, "failed to start the MK-BLCtrl driver");
}
if (bus != -1) {
if (mk_start(bus, motorcount, devicepath) != OK) {
errx(1, "failed to start the MK-BLCtrl driver");
}
} else {
errx(1, "failed to start the MK-BLCtrl driver (cannot find i2c esc's)");
}
/* parameter set ? */
if (newMode) {
/* switch parameter */
return mk_new_mode(pwm_update_rate_in_hz, motorcount, motortest, px4mode, frametype, overrideSecurityChecks);
}
/* parameter set ? */
if (newMode) {
/* switch parameter */
return mk_new_mode(port_mode, pwm_update_rate_in_hz, motorcount, motortest, px4mode, frametype, overrideSecurityChecks);
}
exit(0);
exit(0);
} else {
errx(1, "MK-BLCtrl driver already running");
}
} else {
errx(1, "MK-BLCtrl driver already running");
}
} else {
if (g_mk == nullptr) {
errx(1, "MK-BLCtrl driver not running. You have to start it first.");
} else {
if (g_mk == nullptr) {
errx(1, "MK-BLCtrl driver not running. You have to start it first.");
} else {
g_mk->set_motor_test(motortest);
exit(0);
} else {
g_mk->set_motor_test(motortest);
exit(0);
}
}
}
}
}