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gpio: examples for GPIO driver
This commit is contained in:
Reinier Millo Sánchez
Christian Helmuth
parent
98da445269
commit
750b10b957
73
repos/os/run/gpio_led.run
Normal file
73
repos/os/run/gpio_led.run
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@ -0,0 +1,73 @@
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#
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# Build
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#
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if {[have_spec gpio] == 0} {
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puts "Runs only on platforms with GPIO"
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exit 0
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}
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set build_components {
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core init
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drivers/timer drivers/gpio
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test/gpio_led
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}
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build $build_components
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create_boot_directory
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#
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# Generate config
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# Example preconfigured for RaspberryPI ACT Led
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#
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append config {
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<config>
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<parent-provides>
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<service name="ROM"/>
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<service name="RAM"/>
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<service name="IRQ"/>
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<service name="IO_MEM"/>
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<service name="IO_PORT"/>
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<service name="CAP"/>
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<service name="PD"/>
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<service name="RM"/>
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<service name="CPU"/>
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<service name="LOG"/>
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<service name="SIGNAL"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Timer"/></provides>
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</start>
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<start name="gpio_drv">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Gpio"/></provides>
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<config>
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<gpio num="16" mode="O" value="0"/>
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</config>
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</start>
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<start name="led_gpio_drv">
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<config gpio_pin="16" delay="500" times="5"/>
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<resource name="RAM" quantum="1M"/>
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</start>
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</config>}
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install_config $config
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#
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# Boot modules
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#
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# generic modules
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set boot_modules {
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core init
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timer
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gpio_drv
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led_gpio_drv
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}
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build_boot_image $boot_modules
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76
repos/os/run/gpio_signal.run
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76
repos/os/run/gpio_signal.run
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@ -0,0 +1,76 @@
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#
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# Build
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#
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if {[have_spec gpio] == 0} {
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puts "Runs only on platforms with GPIO"
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exit 0
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}
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set build_components {
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core init
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drivers/timer drivers/gpio
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test/gpio_signal
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}
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build $build_components
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create_boot_directory
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#
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# Generate config
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# Example preconfigured for RaspberryPI ACT Led
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#
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append config {
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<config>
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<parent-provides>
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<service name="ROM"/>
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<service name="RAM"/>
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<service name="IRQ"/>
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<service name="IO_MEM"/>
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<service name="IO_PORT"/>
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<service name="CAP"/>
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<service name="PD"/>
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<service name="RM"/>
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<service name="CPU"/>
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<service name="LOG"/>
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<service name="SIGNAL"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Timer"/></provides>
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</start>
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<start name="gpio_drv">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Gpio"/></provides>
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<config async_events="0">
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<gpio num="14" function="0"/>
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<gpio num="15" function="0"/>
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<gpio num="17" mode="I"/>
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<gpio num="16" mode="O" value="0"/>
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</config>
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</start>
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<start name="signal_gpio_drv">
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<config gpio_pin="16" gpio_pin_in="17" gpio_pin_out="18" state="1"/>
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<resource name="RAM" quantum="1M"/>
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</start>
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</config>}
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install_config $config
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#
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# Boot modules
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#
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# generic modules
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set boot_modules {
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core init
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timer
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gpio_drv
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signal_gpio_drv
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}
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build_boot_image $boot_modules
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57
repos/os/src/test/gpio_led/main.cc
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57
repos/os/src/test/gpio_led/main.cc
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/*
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* \brief Test GPIO driver with Leds
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* \author Reinier Millo Sánchez <rmillo@uclv.cu>
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* \date 2015-07-26
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*/
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/*
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* Copyright (C) 2012-2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#include <base/printf.h>
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#include <base/signal.h>
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#include <gpio_session/connection.h>
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#include <irq_session/client.h>
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#include <util/mmio.h>
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#include <timer_session/connection.h>
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#include <os/config.h>
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int main(int, char **)
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{
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unsigned int _delay = 1000;
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unsigned int _gpio_pin = 16;
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unsigned int _times = 10;
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try {
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Genode::config()->xml_node().attribute("gpio_pin").value(&_gpio_pin);
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} catch (...) { }
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try {
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Genode::config()->xml_node().attribute("delay").value(&_delay);
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} catch (...) { }
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try {
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Genode::config()->xml_node().attribute("times").value(&_times);
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} catch (...) { }
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PDBG("--- GPIO Led test [GPIO Pin: %d, Timer delay: %d, Times: %d] ---",_gpio_pin, _delay, _times);
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Gpio::Connection _led(_gpio_pin);
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Timer::Connection _timer;
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while(_times--)
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{
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PDBG("Remains blinks: %d",_times);
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_led.write(false);
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_timer.msleep(_delay);
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_led.write(true);
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_timer.msleep(_delay);
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}
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Genode::printf("Test finished\n");
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return 0;
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}
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6
repos/os/src/test/gpio_led/target.mk
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6
repos/os/src/test/gpio_led/target.mk
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TARGET = led_gpio_drv
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REQUIRES = gpio
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SRC_CC = main.cc
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LIBS = base config
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vpath main.cc $(PRG_DIR)
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111
repos/os/src/test/gpio_signal/main.cc
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111
repos/os/src/test/gpio_signal/main.cc
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/*
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* \brief Test GPIO driver
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* \author Reinier Millo Sánchez <rmillo@uclv.cu>
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* \date 2015-07-26
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*/
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/*
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* Copyright (C) 2012-2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#include <base/printf.h>
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#include <base/signal.h>
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#include <gpio_session/connection.h>
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#include <irq_session/client.h>
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#include <util/mmio.h>
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#include <timer_session/connection.h>
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#include <os/config.h>
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using namespace Genode;
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int main(int, char **)
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{
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Signal_receiver sig_rec;
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Signal_context sig_ctx;
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Timer::Connection _timer;
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unsigned _gpio_pin = 16;
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unsigned _gpio_pin_in = 17;
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unsigned _gpio_pin_out = 18;
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unsigned _tmp = 0;
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bool _state = false;
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try {
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Genode::config()->xml_node().attribute("gpio_pin").value(&_gpio_pin);
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} catch (...) { }
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try {
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Genode::config()->xml_node().attribute("gpio_pin_in").value(&_gpio_pin_in);
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} catch (...) { }
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try {
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Genode::config()->xml_node().attribute("gpio_pin_out").value(&_gpio_pin_out);
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} catch (...) { }
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try {
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Genode::config()->xml_node().attribute("state").value(&_tmp);
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} catch (...) { }
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_state = _tmp>0;
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PDBG("--- GPIO Signals test [LED pin: %d, Input pin: %d, Output pin: %d, Initial state: %d] ---", _gpio_pin, _gpio_pin_in, _gpio_pin_out, _state);
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Gpio::Connection _led(_gpio_pin);
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Gpio::Connection _signal_input(_gpio_pin_in);
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Gpio::Connection _signal_output(_gpio_pin_out);
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/*
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* Set pins direction.
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* This values can be set by configuration
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*/
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_signal_input.direction(Gpio::Session::IN);
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_signal_output.direction(Gpio::Session::OUT);
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/*
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* Power on the signal output
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*/
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_signal_output.write(true);
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/*
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* Initialize the pin IRQ signal
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*/
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Genode::Irq_session_client irq(_signal_input.irq_session(Gpio::Session::HIGH_LEVEL));
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irq.sigh(sig_rec.manage(&sig_ctx));
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irq.ack_irq();
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while(1)
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{
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_state = !_state;
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_led.write(_state);
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/*
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* Wait for a GIO signal on _signal_input
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*/
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sig_rec.wait_for_signal();
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/*
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* Small delay between push button actions
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*/
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_timer.msleep(100);
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/*
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* Switch the LED state
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*/
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if(!_state)
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{
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PDBG("Led going OFF");
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}else
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{
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PDBG("Led going ON");
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}
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irq.ack_irq();
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}
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return 0;
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}
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7
repos/os/src/test/gpio_signal/target.mk
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7
repos/os/src/test/gpio_signal/target.mk
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@ -0,0 +1,7 @@
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TARGET = signal_gpio_drv
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REQUIRES = gpio
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SRC_CC = main.cc
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INC_DIR += $(PRG_DIR)
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LIBS = base config
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vpath main.cc $(PRG_DIR)
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