mraa_result_t
mraa_intel_galileo_gen2_i2c_init_pre(unsigned int bus)
{
mraa_gpio_context io18 = mraa_gpio_init_raw(57);
int status = 0;
if (io18 == NULL) {
return MRAA_ERROR_UNSPECIFIED;
}
status += mraa_gpio_dir(io18, MRAA_GPIO_IN);
status += mraa_gpio_mode(io18, MRAA_GPIO_HIZ);
mraa_gpio_close(io18);
mraa_gpio_context io19 = mraa_gpio_init_raw(59);
if (io19 == NULL) {
return MRAA_ERROR_UNSPECIFIED;
}
status += mraa_gpio_dir(io19, MRAA_GPIO_IN);
status += mraa_gpio_mode(io19, MRAA_GPIO_HIZ);
mraa_gpio_close(io19);
if (status > 0) {
return MRAA_ERROR_UNSPECIFIED;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edison_pwm_init_pre(int pin)
{
if (miniboard == 1) {
return mraa_intel_edison_pinmode_change(plat->pins[pin].gpio.pinmap, 1);
}
if (pin < 0 || pin > 19)
return MRAA_ERROR_INVALID_RESOURCE;
if (!plat->pins[pin].capabilites.pwm)
return MRAA_ERROR_INVALID_RESOURCE;
mraa_gpio_context output_e;
output_e = mraa_gpio_init_raw(outputen[pin]);
if (mraa_gpio_dir(output_e, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
if (mraa_gpio_write(output_e, 1) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
mraa_gpio_close(output_e);
mraa_gpio_context pullup_pin;
pullup_pin = mraa_gpio_init_raw(pullup_map[pin]);
if (mraa_gpio_dir(pullup_pin, MRAA_GPIO_IN) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
mraa_gpio_close(pullup_pin);
mraa_intel_edison_pinmode_change(plat->pins[pin].gpio.pinmap, 1);
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edison_uart_init_pre(int index)
{
if (index != 0) {
syslog(LOG_ERR, "edison: Failed to write to drive mode");
return MRAA_ERROR_INVALID_RESOURCE;
}
if (miniboard == 0) {
mraa_gpio_write(tristate, 0);
mraa_gpio_context io0_output = mraa_gpio_init_raw(248);
mraa_gpio_context io0_pullup = mraa_gpio_init_raw(216);
mraa_gpio_context io1_output = mraa_gpio_init_raw(249);
mraa_gpio_context io1_pullup = mraa_gpio_init_raw(217);
mraa_gpio_dir(io0_output, MRAA_GPIO_OUT);
mraa_gpio_dir(io0_pullup, MRAA_GPIO_OUT);
mraa_gpio_dir(io1_output, MRAA_GPIO_OUT);
mraa_gpio_dir(io1_pullup, MRAA_GPIO_IN);
mraa_gpio_write(io0_output, 0);
mraa_gpio_write(io0_pullup, 0);
mraa_gpio_write(io1_output, 1);
mraa_gpio_close(io0_output);
mraa_gpio_close(io0_pullup);
mraa_gpio_close(io1_output);
mraa_gpio_close(io1_pullup);
}
mraa_result_t ret;
ret = mraa_intel_edison_pinmode_change(130, 1); // IO0 RX
ret = mraa_intel_edison_pinmode_change(131, 1); // IO1 TX
return ret;
}
mraa_result_t
mraa_intel_edison_uart_init_pre(int index)
{
if (miniboard == 0) {
mraa_gpio_write(tristate, 0);
mraa_gpio_context io0_output = mraa_gpio_init_raw(248);
mraa_gpio_context io0_pullup = mraa_gpio_init_raw(216);
mraa_gpio_context io1_output = mraa_gpio_init_raw(249);
mraa_gpio_context io1_pullup = mraa_gpio_init_raw(217);
mraa_gpio_dir(io0_output, MRAA_GPIO_OUT);
mraa_gpio_dir(io0_pullup, MRAA_GPIO_OUT);
mraa_gpio_dir(io1_output, MRAA_GPIO_OUT);
mraa_gpio_dir(io1_pullup, MRAA_GPIO_IN);
mraa_gpio_write(io0_output, 0);
mraa_gpio_write(io0_pullup, 0);
mraa_gpio_write(io1_output, 1);
mraa_gpio_close(io0_output);
mraa_gpio_close(io0_pullup);
mraa_gpio_close(io1_output);
mraa_gpio_close(io1_pullup);
}
mraa_result_t ret;
ret = mraa_intel_edison_pinmode_change(130,1); //IO0 RX
ret = mraa_intel_edison_pinmode_change(131,1); //IO1 TX
return ret;
}
mraa_result_t
mraa_intel_edison_aio_init_pre(unsigned int aio)
{
if (aio > plat->aio_count) {
syslog(LOG_ERR, "edison: Invalid analog input channel");
return MRAA_ERROR_INVALID_RESOURCE;
}
int pin = 14 + aio;
mraa_gpio_context output_e;
output_e = mraa_gpio_init_raw(outputen[pin]);
if (mraa_gpio_dir(output_e, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
if (mraa_gpio_write(output_e, 0) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
mraa_gpio_close(output_e);
mraa_gpio_context pullup_pin;
pullup_pin = mraa_gpio_init_raw(pullup_map[pin]);
if (mraa_gpio_dir(pullup_pin, MRAA_GPIO_IN) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
mraa_gpio_close(pullup_pin);
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_galileo_gen2_uart_init_pre(int index)
{
mraa_gpio_context io0_output = mraa_gpio_init_raw(32);
if (io0_output == NULL) {
return MRAA_ERROR_INVALID_RESOURCE;
}
mraa_gpio_context io1_output = mraa_gpio_init_raw(28);
if (io1_output == NULL) {
mraa_gpio_close(io0_output);
return MRAA_ERROR_INVALID_RESOURCE;
}
int status = 0;
status += mraa_gpio_dir(io0_output, MRAA_GPIO_OUT);
status += mraa_gpio_dir(io1_output, MRAA_GPIO_OUT);
status += mraa_gpio_write(io0_output, 1);
status += mraa_gpio_write(io1_output, 0);
mraa_gpio_close(io0_output);
mraa_gpio_close(io1_output);
if (status > 0) {
return MRAA_ERROR_UNSPECIFIED;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_galileo_gen2_uart_init_pre(int index)
{
mraa_gpio_context io0_output = mraa_gpio_init_raw(32);
mraa_gpio_context io1_output = mraa_gpio_init_raw(28);
mraa_gpio_dir(io0_output, MRAA_GPIO_OUT);
mraa_gpio_dir(io1_output, MRAA_GPIO_OUT);
mraa_gpio_write(io0_output, 1);
mraa_gpio_write(io1_output, 0);
mraa_gpio_close(io0_output);
mraa_gpio_close(io1_output);
return MRAA_SUCCESS;
}
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;
}
mraa_result_t
mraa_intel_edison_gpio_dir_pre(mraa_gpio_context dev, mraa_gpio_dir_t dir)
{
if (dev->phy_pin >= 0) {
if (mraa_gpio_write(tristate, 0) != MRAA_SUCCESS) {
// call can sometimes fail, this does not actually mean much except
// that the kernel drivers don't always behave very well
syslog(LOG_NOTICE, "edison: Failed to write to tristate");
}
int pin = dev->phy_pin;
if (!agpioOutputen[pin]) {
agpioOutputen[pin] = mraa_gpio_init_raw(outputen[pin]);
if (agpioOutputen[pin] == NULL) {
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_dir(agpioOutputen[pin], MRAA_GPIO_OUT) != MRAA_SUCCESS) {
return MRAA_ERROR_INVALID_RESOURCE;
}
}
int output_val = 0;
if (dir == MRAA_GPIO_OUT) {
output_val = 1;
}
if (mraa_gpio_write(agpioOutputen[pin], output_val) != MRAA_SUCCESS) {
return MRAA_ERROR_INVALID_RESOURCE;
}
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_galileo_g1_pwm_init_pre(int pin)
{
// Gen1 galileo has no kernel muxing for GPIOs/PWM so ends up with leakage
// on the PWM pins from the GPIO pins if not set to output high
if (plat->pins[pin].capabilities.gpio == 1) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
if (mux_i == NULL) {
syslog(LOG_ERR, "pwm_init: error in gpio->pwm%i transition. gpio_init", pin);
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_dir(mux_i, MRAA_GPIO_OUT) != MRAA_SUCCESS) {
syslog(LOG_ERR, "pwm_init: error in gpio->pwm%i transition. gpio_dir", pin);
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_write(mux_i, 1) != MRAA_SUCCESS) {
syslog(LOG_ERR, "pwm_init: error in gpio->pwm%i transition. gpio_write", pin);
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_close(mux_i) != MRAA_SUCCESS) {
syslog(LOG_ERR, "pwm_init: error in gpio->pwm%i transition. gpio_close", pin);
return MRAA_ERROR_INVALID_RESOURCE;
}
}
return MRAA_SUCCESS;
}
mraa_pin_t*
mraa_setup_pwm(int pin)
{
if (plat == NULL)
return NULL;
if (plat->pins[pin].capabilites.pwm != 1)
return NULL;
if (plat->pins[pin].capabilites.gpio == 1) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
if (mux_i == NULL)
return NULL;
if (mraa_gpio_dir(mux_i, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return NULL;
// Current REV D quirk. //TODO GEN 2
if (mraa_gpio_write(mux_i, 1) != MRAA_SUCCESS)
return NULL;
if (mraa_gpio_close(mux_i) != MRAA_SUCCESS)
return NULL;
}
if (plat->pins[pin].pwm.mux_total > 0)
if (mraa_setup_mux_mapped(plat->pins[pin].pwm) != MRAA_SUCCESS)
return NULL;
mraa_pin_t *ret;
ret = (mraa_pin_t*) malloc(sizeof(mraa_pin_t));
ret->pinmap = plat->pins[pin].pwm.pinmap;
ret->parent_id = plat->pins[pin].pwm.parent_id;
return ret;
}
mraa_result_t
mraa_setup_mux_mapped(mraa_pin_t meta)
{
int mi;
for (mi = 0; mi < meta.mux_total; mi++) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) {
return MRAA_ERROR_INVALID_HANDLE;
}
// this function will sometimes fail, however this is not critical as
// long as the write succeeds - Test case galileo gen2 pin2
mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
mraa_gpio_owner(mux_i, 0);
if (mraa_gpio_write(mux_i, meta.mux[mi].value) != MRAA_SUCCESS) {
mraa_gpio_close(mux_i);
return MRAA_ERROR_INVALID_RESOURCE;
}
mraa_gpio_close(mux_i);
}
return MRAA_SUCCESS;
}
mraa_board_t*
mraa_intel_edison_fab_c()
{
mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
if (b == NULL)
return NULL;
b->phy_pin_count = 20;
b->gpio_count = 14;
b->aio_count = 6;
advance_func->gpio_dir_pre = &mraa_intel_edison_gpio_dir_pre;
advance_func->gpio_init_post = &mraa_intel_edison_gpio_init_post;
advance_func->gpio_dir_post = &mraa_intel_edison_gpio_dir_post;
advance_func->i2c_init_pre = &mraa_intel_edison_i2c_init_pre;
advance_func->aio_get_valid_fp = &mraa_intel_edison_aio_get_fp;
advance_func->aio_init_pre = &mraa_intel_edison_aio_init_pre;
advance_func->aio_init_post = &mraa_intel_edison_aio_init_post;
advance_func->pwm_init_pre = &mraa_intel_edison_pwm_init_pre;
advance_func->pwm_init_post = &mraa_intel_edison_pwm_init_post;
advance_func->spi_init_pre = &mraa_intel_edison_spi_init_pre;
advance_func->spi_init_post = &mraa_intel_edison_spi_init_post;
advance_func->gpio_mode_replace = &mraa_intel_edison_gpio_mode_replace;
b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t)*MRAA_INTEL_EDISON_PINCOUNT);
tristate = mraa_gpio_init_raw(214);
if (tristate == NULL) {
syslog(LOG_CRIT, "Intel Edison Failed to initialise Arduino board TriState,\
check i2c devices! FATAL\n");
return NULL;
}
mraa_result_t
mraa_intel_galileo_gen2_dir_pre(mraa_gpio_context dev, mraa_gpio_dir_t dir)
{
if (dev->phy_pin >= 0) {
int pin = dev->phy_pin;
if (plat->pins[pin].gpio.complex_cap.complex_pin != 1)
return MRAA_SUCCESS;
if (plat->pins[pin].gpio.complex_cap.output_en == 1) {
if (!agpioOutputen[pin]) {
agpioOutputen[pin] = mraa_gpio_init_raw(plat->pins[pin].gpio.output_enable);
if (agpioOutputen[pin] == NULL) {
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_dir(agpioOutputen[pin], MRAA_GPIO_OUT) != MRAA_SUCCESS) {
return MRAA_ERROR_INVALID_RESOURCE;
}
}
int output_val = 1;
if (dir == MRAA_GPIO_OUT) {
output_val = 0;
}
if (mraa_gpio_write(agpioOutputen[pin], output_val) != MRAA_SUCCESS) {
return MRAA_ERROR_INVALID_RESOURCE;
}
}
}
return MRAA_SUCCESS;
}
/**
* Instanciates a Gpio object
*
* @param pin pin number to use
* @param owner (optional) Set pin owner, default behaviour is to 'own'
* the pin if we exported it. This means we will close it on destruct.
* Otherwise it will get left open. This is only valid in sysfs use
* cases
* @param raw (optional) Raw pins will use gpiolibs pin numbering from
* the kernel module. Note that you will not get any muxers set up for
* you so this may not always work as expected.
*/
Gpio(int pin, bool owner=true, bool raw=false) {
if (raw)
m_gpio = mraa_gpio_init_raw(pin);
else
m_gpio = mraa_gpio_init(pin);
if (!owner)
mraa_gpio_owner(m_gpio, 0);
}
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;
}
mraa_result_t
mraa_intel_edison_gpio_mode_replace(mraa_gpio_context dev, mraa_gpio_mode_t mode)
{
if (dev->value_fp != -1) {
if (close(dev->value_fp) != 0) {
return MRAA_ERROR_INVALID_RESOURCE;
}
dev->value_fp = -1;
}
mraa_gpio_context pullup_e;
pullup_e = mraa_gpio_init_raw(pullup_map[dev->phy_pin]);
if (pullup_e == NULL) {
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_dir(pullup_e, MRAA_GPIO_IN) != MRAA_SUCCESS) {
syslog(LOG_ERR, "edison: Failed to set gpio mode-pullup");
mraa_gpio_close(pullup_e);
return MRAA_ERROR_INVALID_RESOURCE;
}
int value = -1;
switch (mode) {
case MRAA_GPIO_STRONG:
break;
case MRAA_GPIO_PULLUP:
value = 1;
break;
case MRAA_GPIO_PULLDOWN:
value = 0;
break;
case MRAA_GPIO_HIZ:
return MRAA_SUCCESS;
break;
default:
return MRAA_ERROR_FEATURE_NOT_IMPLEMENTED;
}
if (value != -1) {
if (mraa_gpio_dir(pullup_e, MRAA_GPIO_OUT) != MRAA_SUCCESS) {
syslog(LOG_ERR, "edison: Error setting pullup");
mraa_gpio_close(pullup_e);
return MRAA_ERROR_INVALID_RESOURCE;
}
if (mraa_gpio_write(pullup_e, value) != MRAA_SUCCESS) {
syslog(LOG_ERR, "edison: Error setting pullup");
mraa_gpio_close(pullup_e);
return MRAA_ERROR_INVALID_RESOURCE;
}
}
return mraa_gpio_close(pullup_e);
}
mraa_result_t
mraa_intel_edison_spi_init_pre(int bus)
{
if (miniboard == 1) {
mraa_intel_edison_pinmode_change(111, 1);
mraa_intel_edison_pinmode_change(115, 1);
mraa_intel_edison_pinmode_change(114, 1);
mraa_intel_edison_pinmode_change(109, 1);
return MRAA_SUCCESS;
}
mraa_gpio_write(tristate, 0);
mraa_gpio_context io10_out = mraa_gpio_init_raw(258);
mraa_gpio_context io11_out = mraa_gpio_init_raw(259);
mraa_gpio_context io12_out = mraa_gpio_init_raw(260);
mraa_gpio_context io13_out = mraa_gpio_init_raw(261);
mraa_gpio_dir(io10_out, MRAA_GPIO_OUT);
mraa_gpio_dir(io11_out, MRAA_GPIO_OUT);
mraa_gpio_dir(io12_out, MRAA_GPIO_OUT);
mraa_gpio_dir(io13_out, MRAA_GPIO_OUT);
mraa_gpio_write(io10_out, 1);
mraa_gpio_write(io11_out, 1);
mraa_gpio_write(io12_out, 0);
mraa_gpio_write(io13_out, 1);
mraa_gpio_close(io10_out);
mraa_gpio_close(io11_out);
mraa_gpio_close(io12_out);
mraa_gpio_close(io13_out);
mraa_gpio_context io10_pull = mraa_gpio_init_raw(226);
mraa_gpio_context io11_pull = mraa_gpio_init_raw(227);
mraa_gpio_context io12_pull = mraa_gpio_init_raw(228);
mraa_gpio_context io13_pull = mraa_gpio_init_raw(229);
mraa_gpio_dir(io10_pull, MRAA_GPIO_IN);
mraa_gpio_dir(io11_pull, MRAA_GPIO_IN);
mraa_gpio_dir(io12_pull, MRAA_GPIO_IN);
mraa_gpio_dir(io13_pull, MRAA_GPIO_IN);
mraa_gpio_close(io10_pull);
mraa_gpio_close(io11_pull);
mraa_gpio_close(io12_pull);
mraa_gpio_close(io13_pull);
return MRAA_SUCCESS;
}
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;
}
static mraa_result_t
mraa_setup_mux_mapped(mraa_pin_t meta)
{
int mi;
for (mi = 0; mi < meta.mux_total; mi++) {
mraa_gpio_context mux_i;
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL)
return MRAA_ERROR_INVALID_HANDLE;
mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
if (mraa_gpio_write(mux_i, meta.mux[mi].value) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
}
return MRAA_SUCCESS;
}
/**
* Instantiates a Gpio object
*
* @param pin pin number to use
* @param owner (optional) Set pin owner, default behaviour is to 'own'
* the pin if we exported it. This means we will close it on destruct.
* Otherwise it will get left open. This is only valid in sysfs use
* cases
* @param raw (optional) Raw pins will use gpiolibs pin numbering from
* the kernel module. Note that you will not get any muxers set up for
* you so this may not always work as expected.
*/
Gpio(int pin, bool owner = true, bool raw = false)
{
if (raw) {
m_gpio = mraa_gpio_init_raw(pin);
} else {
m_gpio = mraa_gpio_init(pin);
}
if (m_gpio == NULL) {
throw std::invalid_argument("Invalid GPIO pin specified");
}
if (!owner) {
mraa_gpio_owner(m_gpio, 0);
}
}
mraa_board_t*
mraa_intel_edison_fab_c()
{
mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
if (b == NULL)
return NULL;
// This seciton will also check if the arduino board is there
tristate = mraa_gpio_init_raw(214);
if (tristate == NULL) {
syslog(LOG_INFO, "edison: Failed to initialise Arduino board TriState,\
assuming Intel Edison Miniboard\n");
if (mraa_intel_edsion_miniboard(b) != MRAA_SUCCESS) {
free(b);
return NULL;
}
return b;
}
mraa_board_t*
mraa_intel_edison_fab_c()
{
mraa_board_t* b = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
if (b == NULL) {
return NULL;
}
b->platform_name = PLATFORM_NAME;
// This seciton will also check if the arduino board is there
tristate = mraa_gpio_init_raw(214);
if (tristate == NULL) {
syslog(LOG_INFO, "edison: Failed to initialise Arduino board TriState,\
assuming Intel Edison Miniboard\n");
if (mraa_intel_edison_miniboard(b) != MRAA_SUCCESS) {
goto error;
}
return b;
}
mraa_result_t
mraa_intel_edison_gpio_dir_pre(mraa_gpio_context dev, gpio_dir_t dir)
{
mraa_gpio_write(tristate, 0);
if (dev->phy_pin >= 0) {
int pin = dev->phy_pin;
mraa_gpio_context output_e;
output_e = mraa_gpio_init_raw(outputen[pin]);
if (mraa_gpio_dir(output_e, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
int output_val = 0;
if (dir == MRAA_GPIO_OUT)
output_val = 1;
if (mraa_gpio_write(output_e, output_val) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edison_i2c_init_pre(unsigned int bus)
{
if (miniboard == 0) {
if(bus != 6) {
syslog(LOG_ERR, "edison: You can't use that bus, switching to bus 6");
bus = 6;
}
mraa_gpio_write(tristate, 0);
mraa_gpio_context io18_gpio = mraa_gpio_init_raw(14);
mraa_gpio_context io19_gpio = mraa_gpio_init_raw(165);
mraa_gpio_dir(io18_gpio, MRAA_GPIO_IN);
mraa_gpio_dir(io19_gpio, MRAA_GPIO_IN);
mraa_gpio_close(io18_gpio);
mraa_gpio_close(io19_gpio);
mraa_gpio_context io18_enable = mraa_gpio_init_raw(236);
mraa_gpio_context io19_enable = mraa_gpio_init_raw(237);
mraa_gpio_dir(io18_enable, MRAA_GPIO_OUT);
mraa_gpio_dir(io19_enable, MRAA_GPIO_OUT);
mraa_gpio_write(io18_enable, 0);
mraa_gpio_write(io19_enable, 0);
mraa_gpio_close(io18_enable);
mraa_gpio_close(io19_enable);
mraa_gpio_context io18_pullup = mraa_gpio_init_raw(212);
mraa_gpio_context io19_pullup = mraa_gpio_init_raw(213);
mraa_gpio_dir(io18_pullup, MRAA_GPIO_IN);
mraa_gpio_dir(io19_pullup, MRAA_GPIO_IN);
mraa_gpio_close(io18_pullup);
mraa_gpio_close(io19_pullup);
mraa_intel_edison_pinmode_change(28, 1);
mraa_intel_edison_pinmode_change(27, 1);
mraa_gpio_write(tristate, 1);
} else {
if(bus != 6 && bus != 1) {
syslog(LOG_ERR, "edison: You can't use that bus, switching to bus 6");
bus = 6;
}
int scl = plat->pins[plat->i2c_bus[bus].scl].gpio.pinmap;
int sda = plat->pins[plat->i2c_bus[bus].sda].gpio.pinmap;
mraa_intel_edison_pinmode_change(sda, 1);
mraa_intel_edison_pinmode_change(scl, 1);
}
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_galileo_gen2_dir_pre(mraa_gpio_context dev, gpio_dir_t dir)
{
if (dev->phy_pin >= 0) {
int pin = dev->phy_pin;
if (plat->pins[pin].gpio.complex_cap.complex_pin != 1)
return MRAA_SUCCESS;
if (plat->pins[pin].gpio.complex_cap.output_en == 1) {
mraa_gpio_context output_e;
output_e = mraa_gpio_init_raw(plat->pins[pin].gpio.output_enable);
if (mraa_gpio_dir(output_e, MRAA_GPIO_OUT) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
int output_val = 1;
if (dir == MRAA_GPIO_OUT)
output_val = 0;
if (mraa_gpio_write(output_e, output_val) != MRAA_SUCCESS)
return MRAA_ERROR_INVALID_RESOURCE;
}
}
return MRAA_SUCCESS;
}
mraa_gpio_context
mraa_gpio_init(int pin)
{
if (plat == NULL) {
syslog(LOG_ERR, "gpio: platform not initialised");
return NULL;
}
if (pin < 0 || pin > plat->phy_pin_count) {
syslog(LOG_ERR, "gpio: pin %i beyond platform definition", pin);
return NULL;
}
if (plat->pins[pin].capabilites.gpio != 1) {
syslog(LOG_ERR, "gpio: pin %i not capable of gpio", pin);
return NULL;
}
if (plat->pins[pin].gpio.mux_total > 0) {
if (mraa_setup_mux_mapped(plat->pins[pin].gpio) != MRAA_SUCCESS) {
syslog(LOG_ERR, "gpio: unable to setup muxes");
return NULL;
}
}
mraa_gpio_context r = mraa_gpio_init_raw(plat->pins[pin].gpio.pinmap);
if (r == NULL) {
syslog(LOG_CRIT, "gpio: mraa_gpio_init_raw(%d) returned error", pin);
return NULL;
}
r->phy_pin = pin;
if (advance_func->gpio_init_post != NULL) {
mraa_result_t ret = advance_func->gpio_init_post(r);
if (ret != MRAA_SUCCESS) {
free(r);
return NULL;
}
}
return r;
}
static mraa_result_t
mraa_intel_edison_misc_spi()
{
mraa_gpio_write(tristate, 0);
mraa_gpio_context io10_p1 = mraa_gpio_init_raw(263);
mraa_gpio_context io10_p2 = mraa_gpio_init_raw(240);
mraa_gpio_context io11_p1 = mraa_gpio_init_raw(262);
mraa_gpio_context io11_p2 = mraa_gpio_init_raw(241);
mraa_gpio_context io12_p1 = mraa_gpio_init_raw(242);
mraa_gpio_context io13_p1 = mraa_gpio_init_raw(243);
mraa_gpio_dir(io10_p1, MRAA_GPIO_OUT);
mraa_gpio_dir(io10_p2, MRAA_GPIO_OUT);
mraa_gpio_dir(io11_p1, MRAA_GPIO_OUT);
mraa_gpio_dir(io11_p2, MRAA_GPIO_OUT);
mraa_gpio_dir(io12_p1, MRAA_GPIO_OUT);
mraa_gpio_dir(io13_p1, MRAA_GPIO_OUT);
mraa_gpio_write(io10_p1, 1);
mraa_gpio_write(io10_p2, 0);
mraa_gpio_write(io11_p1, 1);
mraa_gpio_write(io11_p2, 0);
mraa_gpio_write(io12_p1, 0);
mraa_gpio_write(io13_p1, 0);
mraa_gpio_close(io10_p1);
mraa_gpio_close(io10_p2);
mraa_gpio_close(io11_p1);
mraa_gpio_close(io11_p2);
mraa_gpio_close(io12_p1);
mraa_gpio_close(io13_p1);
mraa_intel_edison_pinmode_change(111, 1);
mraa_intel_edison_pinmode_change(115, 1);
mraa_intel_edison_pinmode_change(114, 1);
mraa_intel_edison_pinmode_change(109, 1);
mraa_gpio_write(tristate, 1);
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edison_i2c_init_pre(unsigned int bus)
{
if(bus != 6) {
syslog(LOG_ERR, "Edison: You can't use that bus :/");
return MRAA_ERROR_INVALID_RESOURCE;
}
mraa_gpio_write(tristate, 0);
mraa_gpio_context io18_gpio = mraa_gpio_init_raw(14);
mraa_gpio_context io19_gpio = mraa_gpio_init_raw(165);
mraa_gpio_dir(io18_gpio, MRAA_GPIO_IN);
mraa_gpio_dir(io19_gpio, MRAA_GPIO_IN);
mraa_gpio_close(io18_gpio);
mraa_gpio_close(io19_gpio);
mraa_gpio_context io18_enable = mraa_gpio_init_raw(236);
mraa_gpio_context io19_enable = mraa_gpio_init_raw(237);
mraa_gpio_dir(io18_enable, MRAA_GPIO_OUT);
mraa_gpio_dir(io19_enable, MRAA_GPIO_OUT);
mraa_gpio_write(io18_enable, 0);
mraa_gpio_write(io19_enable, 0);
mraa_gpio_close(io18_enable);
mraa_gpio_close(io19_enable);
mraa_gpio_context io18_pullup = mraa_gpio_init_raw(212);
mraa_gpio_context io19_pullup = mraa_gpio_init_raw(213);
mraa_gpio_dir(io18_pullup, MRAA_GPIO_IN);
mraa_gpio_dir(io19_pullup, MRAA_GPIO_IN);
mraa_gpio_close(io18_pullup);
mraa_gpio_close(io19_pullup);
mraa_intel_edison_pinmode_change(28, 1);
mraa_intel_edison_pinmode_change(27, 1);
mraa_gpio_write(tristate, 1);
return MRAA_SUCCESS;
}
mraa_result_t
mraa_setup_mux_mapped(mraa_pin_t meta)
{
unsigned int mi;
mraa_result_t ret;
mraa_gpio_context mux_i = NULL;
// avoids the unsigned comparison and we should never have a pin that is UINT_MAX!
unsigned int last_pin = UINT_MAX;
for (mi = 0; mi < meta.mux_total; mi++) {
switch(meta.mux[mi].pincmd) {
case PINCMD_UNDEFINED: // used for backward compatibility
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
// this function will sometimes fail, however this is not critical as
// long as the write succeeds - Test case galileo gen2 pin2
mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
ret = mraa_gpio_write(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SET_VALUE:
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
ret = mraa_gpio_write(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SET_DIRECTION:
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
ret = mraa_gpio_dir(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SET_IN_VALUE:
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
ret = mraa_gpio_dir(mux_i, MRAA_GPIO_IN);
if(ret == MRAA_SUCCESS)
ret = mraa_gpio_write(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SET_OUT_VALUE:
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
ret = mraa_gpio_dir(mux_i, MRAA_GPIO_OUT);
if(ret == MRAA_SUCCESS)
ret = mraa_gpio_write(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SET_MODE:
if(meta.mux[mi].pin != last_pin) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
mux_i = mraa_gpio_init_raw(meta.mux[mi].pin);
if (mux_i == NULL) return MRAA_ERROR_INVALID_HANDLE;
last_pin = meta.mux[mi].pin;
}
ret = mraa_gpio_mode(mux_i, meta.mux[mi].value);
if(ret != MRAA_SUCCESS) {
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_ERROR_INVALID_RESOURCE;
}
break;
case PINCMD_SKIP:
break;
default:
syslog(LOG_NOTICE, "mraa_setup_mux_mapped: wrong command %d on pin %d with value %d", meta.mux[mi].pincmd, meta.mux[mi].pin, meta.mux[mi].value);
break;
}
}
if (mux_i != NULL) {
mraa_gpio_owner(mux_i, 0);
mraa_gpio_close(mux_i);
}
return MRAA_SUCCESS;
}