int
main(int argc, char **argv)
{
mraa_platform_t platform = mraa_get_platform_type();
mraa_gpio_context gpio;
char board_name[] = "Some weird devboard that isn't recognised...";
int ledstate = 0;
switch (platform) {
case MRAA_INTEL_GALILEO_GEN1:
strcpy(board_name, "Intel Galileo Gen1");
gpio = mraa_gpio_init_raw(3);
break;
case MRAA_INTEL_GALILEO_GEN2:
strcpy(board_name, "Intel Galileo Gen2");
default:
gpio = mraa_gpio_init(13);
}
fprintf(stdout, "Welcome to libmraa\n Version: %s\n Running on %s\n",
mraa_get_version(), board_name);
mraa_gpio_dir(gpio, MRAA_GPIO_OUT);
for (;;) {
ledstate = !ledstate;
mraa_gpio_write(gpio, !ledstate);
sleep(1);
}
return 0;
}
void
print_version()
{
fprintf(stdout, "Version %s on %s", mraa_get_version(), mraa_get_platform_name());
if (plat != NULL && plat->sub_platform != NULL)
fprintf(stdout, " with %s", plat->sub_platform->platform_name);
fprintf(stdout, "\n");
}
int main(int argc, char** argv)
{
const char* board_name = mraa_get_platform_name();
int i2c_bus, i, i2c_adapter;
fprintf(stdout, "hello mraa\n Version: %s\n Running on %s\n",
mraa_get_version(), board_name);
mraa_deinit();
return MRAA_SUCCESS;
}
int
main(int argc, char** argv)
{
mraa_platform_t platform = mraa_get_platform_type();
mraa_gpio_context gpio, gpio_in = NULL;
const char* board_name = mraa_get_platform_name();
int ledstate = 0;
switch (platform) {
case MRAA_INTEL_GALILEO_GEN1:
gpio = mraa_gpio_init_raw(3);
break;
case MRAA_INTEL_MINNOWBOARD_MAX:
// there is no onboard LED that we can flash on the minnowboard max
// but on the calamari lure pin 21 is an LED. If you don't have the
// lure put an LED on pin 21
gpio = mraa_gpio_init(21);
break;
case MRAA_INTEL_JOULE_EXPANSION:
gpio = mraa_gpio_init(101);
break;
default:
gpio = mraa_gpio_init(13);
}
fprintf(stdout, "Welcome to libmraa\n Version: %s\n Running on %s\n", mraa_get_version(), board_name);
if (gpio == NULL) {
fprintf(stdout, "Could not initilaize gpio\n");
return 1;
}
// on platforms with physical button use gpio_in
if (platform == MRAA_INTEL_MINNOWBOARD_MAX) {
gpio_in = mraa_gpio_init(14);
if (gpio_in != NULL) {
mraa_gpio_dir(gpio_in, MRAA_GPIO_IN);
// S1 on minnowboardmax's calamari lure maps to pin 14, SW1 != S1
fprintf(stdout, "Press and hold S1 to stop, Press SW1 to shutdown!\n");
}
}
mraa_gpio_dir(gpio, MRAA_GPIO_OUT);
for (;;) {
if (gpio_in != NULL && mraa_gpio_read(gpio_in) == 0) {
return 0;
}
ledstate = !ledstate;
mraa_gpio_write(gpio, !ledstate);
sleep(1);
}
return 0;
}
void startMRAA( void ) {
// printf( "\n I/O is enabled\n" );
mraa_init();
printf( " MRAA library Version: %s\n", mraa_get_version() );
mraa_platform_t platformType = mraa_get_platform_type();
printf( " Platform type: %d\n", platformType );
char *platformName = mraa_get_platform_name();
printf( " Platform name: %s\n", platformName );
}
int
main(int argc, char **argv)
{
mraa_platform_t platform = mraa_get_platform_type();
mraa_gpio_context gpio, gpio_in = NULL;
char* board_name = mraa_get_platform_name();
int ledstate = 0;
switch (platform) {
case MRAA_INTEL_GALILEO_GEN1:
gpio = mraa_gpio_init_raw(3);
break;
case MRAA_INTEL_MINNOWBOARD_MAX:
gpio = mraa_gpio_init(21);
break;
default:
gpio = mraa_gpio_init(13);
}
fprintf(stdout, "Welcome to libmraa\n Version: %s\n Running on %s\n",
mraa_get_version(), board_name);
if (gpio == NULL) {
fprintf(stdout, "Could not initilaize gpio\n");
return 1;
}
// on platforms with physical button use gpio_in
if (platform == MRAA_INTEL_MINNOWBOARD_MAX) {
gpio_in = mraa_gpio_init(14);
if (gpio_in != NULL) {
mraa_gpio_dir(gpio_in, MRAA_GPIO_IN);
fprintf(stdout, "Press and hold S1 to stop\n");
}
}
mraa_gpio_dir(gpio, MRAA_GPIO_OUT);
for (;;) {
if (gpio_in != NULL && mraa_gpio_read(gpio_in) == 0) {
return 0;
}
ledstate = !ledstate;
mraa_gpio_write(gpio, !ledstate);
sleep(1);
}
return 0;
}
mraa_init()
{
if (plat != NULL) {
return MRAA_ERROR_PLATFORM_ALREADY_INITIALISED;
}
uid_t proc_euid = geteuid();
struct passwd* proc_user = getpwuid(proc_euid);
#ifdef DEBUG
setlogmask(LOG_UPTO(LOG_DEBUG));
#else
setlogmask(LOG_UPTO(LOG_NOTICE));
#endif
openlog("libmraa", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
syslog(LOG_NOTICE, "libmraa version %s initialised by user '%s' with EUID %d",
mraa_get_version(), (proc_user != NULL) ? proc_user->pw_name : "<unknown>", proc_euid);
#ifdef SWIGPYTHON
// Initialise python threads, this allows use to grab the GIL when we are
// required to do so
Py_InitializeEx(0);
PyEval_InitThreads();
#endif
advance_func = (mraa_adv_func_t*) malloc(sizeof(mraa_adv_func_t));
memset(advance_func, 0, sizeof(mraa_adv_func_t));
#if defined(X86PLAT)
// Use runtime x86 platform detection
platform_type = mraa_x86_platform();
#elif defined(ARMPLAT)
// Use runtime ARM platform detection
platform_type = mraa_arm_platform();
#else
#error mraa_ARCH NOTHING
#endif
if (plat == NULL) {
printf("mraa: FATAL error, failed to initialise platform\n");
return MRAA_ERROR_PLATFORM_NOT_INITIALISED;
}
syslog(LOG_INFO, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), platform_type);
return MRAA_SUCCESS;
}
bool mkInterface::setupGPIO( int pinNumber ) {
on = 0;
iopin = pinNumber;
gpio = new mraa::Gpio( iopin, true, false );
fprintf(stdout, "\nHello mraa\n Version: %s", mraa_get_version());
mraa_platform_t platform = mraa_get_platform_type();
fprintf(stdout, "\n Platform type: %d\n", platform );
response = gpio->dir(mraa::DIR_OUT);
if (response != MRAA_SUCCESS) {
mraa_result_print((mraa_result_t) response);
return false;
}
return true;
}
int main(int argc, char *argv[])
{
mraa_init();
fprintf(stdout, "Hello mraa.\nVersion: %s\n", mraa_get_version());
// LED
out = mraa_gpio_init(20);
if(out == NULL){
printf("Error: init out.\r\n");
return 1;
}
mraa_gpio_dir(out, MRAA_GPIO_OUT);
// Switch
mraa_gpio_context in = mraa_gpio_init(14);
if(in == NULL){
printf("Error: init in.\r\n");
return 1;
}
mraa_gpio_dir(in, MRAA_GPIO_IN);
mraa_gpio_mode(in, MRAA_GPIO_PULLUP);
// 割込関数の登録
mraa_gpio_isr(in, MRAA_GPIO_EDGE_BOTH, interrupt_in, (void *)in);
while(1) {}
mraa_gpio_isr_exit(in);
mraa_gpio_close(in);
mraa_gpio_close(out);
mraa_deinit();
return 0;
}
/**
* Whilst the actual mraa init function is now called imraa_init, it's only
* callable externally if IMRAA is enabled
*/
mraa_result_t
imraa_init()
{
if (plat != NULL) {
return MRAA_SUCCESS;
}
uid_t proc_euid = geteuid();
struct passwd* proc_user = getpwuid(proc_euid);
#ifdef DEBUG
setlogmask(LOG_UPTO(LOG_DEBUG));
#else
setlogmask(LOG_UPTO(LOG_NOTICE));
#endif
openlog("libmraa", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
syslog(LOG_NOTICE, "libmraa version %s initialised by user '%s' with EUID %d",
mraa_get_version(), (proc_user != NULL) ? proc_user->pw_name : "<unknown>", proc_euid);
mraa_platform_t platform_type;
#if defined(X86PLAT)
// Use runtime x86 platform detection
platform_type = mraa_x86_platform();
#elif defined(ARMPLAT)
// Use runtime ARM platform detection
platform_type = mraa_arm_platform();
#elif defined(MOCKPLAT)
// Use mock platform
platform_type = mraa_mock_platform();
#else
#error mraa_ARCH NOTHING
#endif
if (plat != NULL) {
plat->platform_type = platform_type;
} else {
platform_name = NULL;
}
// Create null base platform if one doesn't already exist
if (plat == NULL) {
plat = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
if (plat != NULL) {
plat->platform_type = MRAA_NULL_PLATFORM;
plat->platform_name = "Unknown platform";
}
}
#if defined(USBPLAT)
// Now detect sub platform, note this is not an else since we could be in
// an error case and fall through to MRAA_ERROR_PLATFORM_NOT_INITIALISED
if (plat != NULL) {
mraa_platform_t usb_platform_type = mraa_usb_platform_extender(plat);
// if we have no known platform just replace usb platform with platform
if (plat->platform_type == MRAA_UNKNOWN_PLATFORM && usb_platform_type != MRAA_UNKNOWN_PLATFORM) {
plat->platform_type = usb_platform_type;
}
}
if (plat == NULL) {
printf("mraa: FATAL error, failed to initialise platform\n");
return MRAA_ERROR_PLATFORM_NOT_INITIALISED;
}
#endif
#if defined(IMRAA)
const char* subplatform_lockfile = "/tmp/imraa.lock";
mraa_add_from_lockfile(subplatform_lockfile);
#endif
// Look for IIO devices
mraa_iio_detect();
if (plat != NULL) {
int length = strlen(plat->platform_name) + 1;
if (mraa_has_sub_platform()) {
// Account for ' + ' chars
length += strlen(plat->sub_platform->platform_name) + 3;
}
platform_name = calloc(length, sizeof(char));
if (mraa_has_sub_platform()) {
snprintf(platform_name, length, "%s + %s", plat->platform_name, plat->sub_platform->platform_name);
} else {
strncpy(platform_name, plat->platform_name, length);
}
}
lang_func = (mraa_lang_func_t*) calloc(1, sizeof(mraa_lang_func_t));
if (lang_func == NULL) {
return MRAA_ERROR_NO_RESOURCES;
}
syslog(LOG_NOTICE, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), mraa_get_platform_type());
return MRAA_SUCCESS;
}
int main(int argc, char** argv)
{
mraa_platform_t platform; /* Type of platform we are on */
mraa_gpio_context gpio_led = NULL; /* LED GPIO descriptor */
mraa_gpio_context gpio_button = NULL; /* BUTTON GPIO descriptor */
mraa_aio_context adc_a0 = NULL; /* Analog-Digital descriptor */
uint32_t adc_val; /* ADC value */
float delay; /* Delay between blinks */
int ledstate = 0; /* LED state, 0=off, 1=on */
/*
* Print banner.
*/
platform = mraa_get_platform_type();
fprintf(stdout, "MRAA C Demonstration\n");
fprintf(stdout, "LIBMRAA Version: %s\n", mraa_get_version());
fprintf(stdout, "Board: %s\n", mraa_get_platform_name());
/*
* Check that we are running on the correct board
*/
platform = mraa_get_platform_type();
if (platform != MRAA_INTEL_GALILEO_GEN2)
{
fprintf(stderr, "ERROR: This program is for a Intel Galileo Gen 2 Board\n");
exit (-1);
}
/*
* Initialize the LED gpio pin and set it as an output
*/
gpio_led = mraa_gpio_init(LED);
if (gpio_led == NULL)
{
fprintf(stderr, "Could not initialize LED gpio\n");
exit (-1);
}
mraa_gpio_dir(gpio_led, MRAA_GPIO_OUT);
/*
* Initialize the Button gpio pin and set it as an input
*/
gpio_button = mraa_gpio_init(BUTTON);
if (gpio_button == NULL)
{
fprintf(stderr, "Could not initialize BUTTON gpio\n");
}
mraa_gpio_dir(gpio_button, MRAA_GPIO_IN);
/*
* Initialize the Analog-Digital converter channel 0
*/
adc_a0 = mraa_aio_init(0);
if (adc_a0 == NULL)
{
fprintf(stderr, "Failed to initalize ADC channel A0\n");
exit (-1);
}
printf("Vary the rate of blink by turning the poteniometer on A0\n");
printf("Exit the program by pressing the button on D%d\n\n", BUTTON);
/*
* Run the loop until the BUTTON is held down.
* Each time through the loop, read the potentiometer on A0 and
* adjust the blink rate.
*/
while (1)
{
if (mraa_gpio_read(gpio_button) == 1)
break;
if (adc_a0 != NULL)
{
adc_val = mraa_aio_read(adc_a0);
/* fprintf(stdout, "ADC A0 = %d\n", adc_val); */
if (adc_val != 0)
delay = 1000000 * ((float)adc_val/1024);
else
delay = 1000000 * (1/1024);
}
ledstate = !ledstate;
mraa_gpio_write(gpio_led, ledstate);
usleep((long)delay);
}
/*
* Clean up and exit
*/
(void)mraa_gpio_close(gpio_led);
(void)mraa_gpio_close(gpio_button);
(void)mraa_aio_close(adc_a0);
exit(0);
}
int main(int argc, char** argv)
{
mraa_result_t r = MRAA_SUCCESS;
/* These are Joule's onboard LED's. */
int default_joule_leds[] = {100, 101, 102, 103};
int *gpio_pins;
int num_pins;
int *input_values, *output_values;
printf("Provide int arg(s) if you want to toggle gpio pins other than Joule's onboard LED's\n");
if (argc < 2) {
gpio_pins = default_joule_leds;
num_pins = 4;
} else {
num_pins = argc - 1;
gpio_pins = malloc(num_pins * sizeof(int));
for (int i = 0; i < num_pins; ++i) {
gpio_pins[i] = strtol(argv[i+1], NULL, 10);
}
}
/* Allocate input and output values arrays. */
input_values = malloc(num_pins * sizeof(int));
output_values = malloc(num_pins * sizeof(int));
mraa_init();
fprintf(stdout, "MRAA Version: %s\nStarting program...\n", mraa_get_version());
mraa_gpio_context gpio = mraa_gpio_init_multi(gpio_pins, num_pins);
if (gpio == NULL) {
fprintf(stderr, "Error during gpio initialization\n");
exit(1);
}
r = mraa_gpio_dir(gpio, MRAA_GPIO_OUT);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
}
signal(SIGINT, sig_handler);
/* Set input values first. */
memset(input_values, 0, num_pins * sizeof(int));
while (running == 0) {
r = mraa_gpio_write_multi(gpio, input_values);
sleep(1);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
} else {
r = mraa_gpio_read_multi(gpio, output_values);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
}
}
for (int i = 0; i < num_pins; ++i) {
input_values[i] = (input_values[i] + 1) % 2;
}
}
memset(input_values, 0, num_pins * sizeof(int));
mraa_gpio_write_multi(gpio, input_values);
r = mraa_gpio_close(gpio);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
}
/* Cleanup. */
if (argc >= 2) {
free(gpio_pins);
}
free(input_values);
free(output_values);
return r;
}
int main(UNUSED(int argc), UNUSED(char** argv))
{
uint32_t tso = rdtsc32();
stdio_mode(STDIO_MODE_CANON);
// initialize mraa and software SPI
mraa_init();
printf("MRAA paltform %s, version %s\n", mraa_get_platform_name(), mraa_get_version());
mraa_spi_sw_context spi = sw_spi_init(MRAA_SCK, MRAA_MOSI, MRAA_MISO);
// initialize RFM12BS
rfm12_t rfm;
memset(&rfm, 0, sizeof(rfm));
rfm12_init_spi(&rfm, spi, MRAA_CS1, MRAA_GP047);
rfm12_init(&rfm, 0xD4, RFM12_BAND_868, 868.0, RFM12_BPS_9600);
rfm12_set_mode(&rfm, RFM_MODE_RX);
printf("started up in %u msec\n", millis(tso));
// default application configuration
cfg.flags |= APPF_ECHO_DAN;
cfg.rfm = &rfm;
// initialize command line interface
console_io_t cli;
memset(&cli, 0, sizeof(cli));
cli.prompt = '>';
cli.data = &cfg;
stdio_init(&cli, stdio_cmd_handler);
stdio_mode(STDIO_MODE_RAW);
dnode_t node;
while(!cli.stop) {
cli.interact(&cli, cli_cmd);
if (rfm12_receive_data(&rfm, &node, sizeof(node), cfg.flags & RFM_RX_DEBUG) == sizeof(node)) {
rfm12_set_mode(&rfm, RFM_MODE_RX);
if (node.nid == NODE_TSYNC) {
tso = rdtsc32();
ts_unpack(&node);
cfg.rtc_hour = node.hour;
cfg.rtc_min = node.min;
cfg.rtc_sec = node.sec;
}
if (cfg.flags & APPF_ECHO_DAN)
print_node(&cli, &node);
}
if (millis(tso) >= 1000) {
tso = rdtsc32();
if (++cfg.rtc_sec == 60) {
cfg.rtc_sec = 0;
if (++cfg.rtc_min == 60) {
cfg.rtc_min = 0;
if (++cfg.rtc_hour == 24)
cfg.rtc_hour = 0;
}
}
}
usleep(1); // be nice
}
stdio_mode(STDIO_MODE_CANON);
rfm12_close_spi(&rfm);
sw_spi_close(spi);
mraa_deinit();
}
/**
* Get libmraa version.
*
* @return libmraa version (e.g. v0.4.0-20-gb408207)
*/
std::string getVersion()
{
std::string ret = mraa_get_version();
return ret;
}