add updated spi_led driver.

This commit is contained in:
Benjamin Perseghetti
2022-06-08 10:49:09 -04:00
parent b87897072e
commit e41766256d
4 changed files with 307 additions and 0 deletions
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############################################################################
#
# Copyright (c) 2021 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.
#
############################################################################
px4_add_module(
MODULE drivers__spi_led
MAIN spi_led_driver
COMPILE_FLAGS
#-DDEBUG_BUILD # uncomment for PX4_DEBUG output
#-O0 # uncomment when debugging
SRCS
spi_led.cpp
spi_led.hpp
DEPENDS
px4_work_queue
)
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menuconfig DRIVERS_SPI_LED
bool "spi_led"
default n
---help---
Enable support for spi_led
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/****************************************************************************
*
* Copyright (c) 2021 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.
*
****************************************************************************/
#include "spi_led.hpp"
spi_led::spi_led(int bus, uint32_t device, int bus_frequency, spi_mode_e spi_mode) :
SPI(DRV_DEVTYPE_UNUSED, MODULE_NAME, bus, device, spi_mode, bus_frequency),
ModuleParams(nullptr),
ScheduledWorkItem("spi_led", px4::wq_configurations::test1)
{
}
spi_led::~spi_led()
{
perf_free(_loop_perf);
perf_free(_loop_interval_perf);
}
int spi_led::init()
{
if(SPI::init() != OK) {
printf("SPI::init() failed\n");
DEVICE_DEBUG("SPI init failed");
return false;
}
// execute Run() on every spi_led publication
if (!_spi_led_sub.registerCallback()) {
PX4_ERR("callback registration failed");
return false;
}
// alternatively, Run on fixed interval
// ScheduleOnInterval(5000_us); // 2000 us interval, 200 Hz rate
return true;
}
void spi_led::Run()
{
if (should_exit()) {
delete _buf;
delete _rbuf;
ScheduleClear();
exit_and_cleanup();
return;
}
perf_begin(_loop_perf);
perf_count(_loop_interval_perf);
if (_spi_led_sub.updated()) {
spi_led_s led_struct;
if (_spi_led_sub.copy(&led_struct)) {
// DO WORK
uint32_t size = led_struct.number_leds + 2;
if(size != _size) {
_size = size;
delete _buf;
delete _rbuf;
_buf = new uint32_t[size];
_rbuf = new uint32_t[size];
for(uint32_t i = 0; i < size; i++) {
_buf[i] = 0x00000000;
}
_buf[size-1] = 0xFFFFFFFF;
}
memcpy(_buf + (led_struct.offset_group*13)+1, &led_struct.led_values, 13);
transfer((uint8_t *)_buf, (uint8_t *)_rbuf, _size*4);
}
}
perf_end(_loop_perf);
}
int spi_led::task_spawn(int argc, char *argv[])
{
spi_led *instance = new spi_led(1, 0, 4000000, SPIDEV_MODE0);
if (instance) {
_object.store(instance);
_task_id = task_id_is_work_queue;
if (instance->init()) {
return PX4_OK;
}
} else {
PX4_ERR("alloc failed");
}
delete instance;
_object.store(nullptr);
_task_id = -1;
return PX4_ERROR;
}
int spi_led::print_status()
{
perf_print_counter(_loop_perf);
perf_print_counter(_loop_interval_perf);
return 0;
}
int spi_led::custom_command(int argc, char *argv[])
{
return print_usage("unknown command");
}
int spi_led::print_usage(const char *reason)
{
if (reason) {
PX4_WARN("%s\n", reason);
}
PRINT_MODULE_DESCRIPTION(
R"DESCR_STR(
### Description
spi_led driver for leds like apa102c and sk9822.
)DESCR_STR");
PRINT_MODULE_USAGE_NAME("spi_led", "driver");
PRINT_MODULE_USAGE_COMMAND("start");
PRINT_MODULE_USAGE_DEFAULT_COMMANDS();
return 0;
}
extern "C" __EXPORT int spi_led_driver_main(int argc, char *argv[])
{
return spi_led::main(argc, argv);
}
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/****************************************************************************
*
* Copyright (c) 2021 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.
*
****************************************************************************/
#pragma once
#include <px4_platform_common/defines.h>
#include <px4_platform_common/module.h>
#include <px4_platform_common/module_params.h>
#include <px4_platform_common/posix.h>
#include <px4_platform_common/px4_work_queue/ScheduledWorkItem.hpp>
#include <drivers/drv_hrt.h>
#include <lib/perf/perf_counter.h>
#include <uORB/SubscriptionCallback.hpp>
#include <uORB/topics/parameter_update.h>
#include <uORB/topics/spi_led.h>
#include <drivers/device/spi.h>
using namespace time_literals;
class spi_led : public device::SPI, public ModuleBase<spi_led>, public ModuleParams, public px4::ScheduledWorkItem
{
public:
spi_led(int bus, uint32_t device, int bus_frequency, spi_mode_e spi_mode);
~spi_led() override;
/** @see ModuleBase */
static int task_spawn(int argc, char *argv[]);
/** @see ModuleBase */
static int custom_command(int argc, char *argv[]);
/** @see ModuleBase */
static int print_usage(const char *reason = nullptr);
int init();
int print_status() override;
private:
void Run() override;
// Subscriptions
uORB::SubscriptionCallbackWorkItem _spi_led_sub{this, ORB_ID(spi_led)}; // subscription that schedules spi_led when updated
// Performance (perf) counters
perf_counter_t _loop_perf{perf_alloc(PC_ELAPSED, "spi_led: cycle")};
perf_counter_t _loop_interval_perf{perf_alloc(PC_INTERVAL, "spi_led: interval")};
// Parameters
DEFINE_PARAMETERS(
(ParamInt<px4::params::SYS_AUTOSTART>) _param_sys_autostart, /**< example parameter */
(ParamInt<px4::params::SYS_AUTOCONFIG>) _param_sys_autoconfig /**< another parameter */
)
uint32_t *_buf;
uint32_t *_rbuf;
uint32_t _size;
};