ardupilot/libraries/AP_HAL_Linux/HAL_Linux_Class.cpp
Fabio Mello c0caed1b64 AP_HAL_Linux: RCOutput_Navio: allow to use internal clock
It's possible to use the internal clock in PCA96895 if we account for
the drift it contains. This is a bit different from solutions in other
projects like the Adafruit library and the PX4 firmware: instead of
applying a correction to the final frequency we apply the correction to
the clock since this is the source of the error.

With this fix we arrived to much better results across different lots of
sensors.

The Navio board continues to use the external clock and should have no
difference behavior.
2015-09-03 18:43:21 +10:00

223 lines
6.6 KiB
C++

#include <AP_HAL/AP_HAL.h>
#if CONFIG_HAL_BOARD == HAL_BOARD_LINUX
#include "HAL_Linux_Class.h"
#include "AP_HAL_Linux_Private.h"
#include <AP_HAL/utility/getopt_cpp.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <AP_HAL_Empty/AP_HAL_Empty.h>
#include <AP_HAL_Empty/AP_HAL_Empty_Private.h>
using namespace Linux;
// 3 serial ports on Linux for now
static LinuxUARTDriver uartADriver(true);
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO
static LinuxSPIUARTDriver uartBDriver;
#else
static LinuxUARTDriver uartBDriver(false);
#endif
static LinuxUARTDriver uartCDriver(false);
static LinuxUARTDriver uartEDriver(false);
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
static LinuxSemaphore i2cSemaphore0;
static LinuxI2CDriver i2cDriver0(&i2cSemaphore0, "/dev/i2c-0");
static LinuxSemaphore i2cSemaphore1;
static LinuxI2CDriver i2cDriver1(&i2cSemaphore1, "/dev/i2c-1");
static LinuxSemaphore i2cSemaphore2;
static LinuxI2CDriver i2cDriver2(&i2cSemaphore2, "/dev/i2c-2");
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BBBMINI
static LinuxSemaphore i2cSemaphore0;
static LinuxI2CDriver i2cDriver0(&i2cSemaphore0, "/dev/i2c-2");
#else
static LinuxSemaphore i2cSemaphore0;
static LinuxI2CDriver i2cDriver0(&i2cSemaphore0, "/dev/i2c-1");
#endif
static LinuxSPIDeviceManager spiDeviceManager;
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO
static NavioAnalogIn analogIn;
#else
static LinuxAnalogIn analogIn;
#endif
/*
select between FRAM and FS
*/
#if LINUX_STORAGE_USE_FRAM == 1
static LinuxStorage_FRAM storageDriver;
#else
static LinuxStorage storageDriver;
#endif
/*
use the BBB gpio driver on ERLE, PXF and BBBMINI
*/
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ERLE || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BBBMINI
static LinuxGPIO_BBB gpioDriver;
/*
use the RPI gpio driver on Navio
*/
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO
static LinuxGPIO_RPI gpioDriver;
#else
static Empty::EmptyGPIO gpioDriver;
#endif
/*
use the PRU based RCInput driver on ERLE and PXF
*/
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ERLE
static LinuxRCInput_PRU rcinDriver;
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BBBMINI
static LinuxRCInput_AioPRU rcinDriver;
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO
static LinuxRCInput_Navio rcinDriver;
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ZYNQ
static LinuxRCInput_ZYNQ rcinDriver;
#else
static LinuxRCInput rcinDriver;
#endif
/*
use the PRU based RCOutput driver on ERLE and PXF
*/
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ERLE
static LinuxRCOutput_PRU rcoutDriver;
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BBBMINI
static LinuxRCOutput_AioPRU rcoutDriver;
/*
use the PCA9685 based RCOutput driver on Navio
*/
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO
static LinuxRCOutput_Navio rcoutDriver(true, 3, RPI_GPIO_27);
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ZYNQ
static LinuxRCOutput_ZYNQ rcoutDriver;
#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
static LinuxRCOutput_Bebop rcoutDriver;
#else
static Empty::EmptyRCOutput rcoutDriver;
#endif
static LinuxScheduler schedulerInstance;
static LinuxUtil utilInstance;
HAL_Linux::HAL_Linux() :
AP_HAL::HAL(
&uartADriver,
&uartBDriver,
&uartCDriver,
NULL, /* no uartD */
&uartEDriver,
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
&i2cDriver0,
&i2cDriver1,
&i2cDriver2,
#else
&i2cDriver0,
NULL,
NULL,
#endif
&spiDeviceManager,
&analogIn,
&storageDriver,
&uartADriver,
&gpioDriver,
&rcinDriver,
&rcoutDriver,
&schedulerInstance,
&utilInstance)
{}
void _usage(void)
{
printf("Usage: -A uartAPath -B uartBPath -C uartCPath\n");
printf("Options:\n");
printf("\t-serial: -A /dev/ttyO4\n");
printf("\t -B /dev/ttyS1\n");
printf("\t-tcp: -C tcp:192.168.2.15:1243:wait\n");
printf("\t -A tcp:11.0.0.2:5678\n");
printf("\t -A udp:11.0.0.2:5678\n");
printf("\t-custom log path:\n");
printf("\t --log-directory /var/APM/logs\n");
printf("\t -l /var/APM/logs\n");
printf("\t-custom terrain path:\n");
printf("\t --terrain-directory /var/APM/terrain\n");
printf("\t -t /var/APM/terrain\n");
}
void HAL_Linux::init(int argc,char* const argv[]) const
{
int opt;
const struct GetOptLong::option options[] = {
{"uartA", true, 0, 'A'},
{"uartB", true, 0, 'B'},
{"uartC", true, 0, 'C'},
{"uartE", true, 0, 'E'},
{"log-directory", true, 0, 'l'},
{"terrain-directory", true, 0, 't'},
{"help", false, 0, 'h'},
{0, false, 0, 0}
};
GetOptLong gopt(argc, argv, "A:B:C:E:l:t:h",
options);
/*
parse command line options
*/
while ((opt = gopt.getoption()) != -1) {
switch (opt) {
case 'A':
uartADriver.set_device_path(gopt.optarg);
break;
case 'B':
uartBDriver.set_device_path(gopt.optarg);
break;
case 'C':
uartCDriver.set_device_path(gopt.optarg);
break;
case 'E':
uartEDriver.set_device_path(gopt.optarg);
break;
case 'l':
utilInstance.set_custom_log_directory(gopt.optarg);
break;
case 't':
utilInstance.set_custom_terrain_directory(gopt.optarg);
break;
case 'h':
_usage();
exit(0);
default:
printf("Unknown option '%c'\n", (char)opt);
exit(1);
}
}
scheduler->init(NULL);
gpio->init();
#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
i2c->begin();
i2c1->begin();
i2c2->begin();
#else
i2c->begin();
#endif
rcout->init(NULL);
rcin->init(NULL);
uartA->begin(115200);
uartE->begin(115200);
spi->init(NULL);
analogin->init(NULL);
utilInstance.init(argc+gopt.optind-1, &argv[gopt.optind-1]);
}
const HAL_Linux AP_HAL_Linux;
#endif