mraa_board_t*
mraa_intel_minnowboard_byt_compatible(mraa_boolean_t turbot)
{
mraa_board_t* b = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
struct utsname running_uname;
int uname_major, uname_minor, max_pins[28];
if (b == NULL) {
return NULL;
}
b->platform_name = PLATFORM_NAME;
if (turbot) {
b->platform_version = "Turbot";
b->gpio_count = b->phy_pin_count = MRAA_INTEL_MINNOW_TURBOT_PINCOUNT;
} else {
b->platform_version = "Ax";
b->gpio_count = b->phy_pin_count = MRAA_INTEL_MINNOW_MAX_PINCOUNT;
}
b->pins = (mraa_pininfo_t*) calloc(b->phy_pin_count, sizeof(mraa_pininfo_t));
if (b->pins == NULL) {
goto error;
}
b->adv_func = (mraa_adv_func_t*) calloc(1, sizeof(mraa_adv_func_t));
if (b->adv_func == NULL) {
free(b->pins);
goto error;
}
if (uname(&running_uname) != 0) {
free(b->pins);
free(b->adv_func);
goto error;
}
sscanf(running_uname.release, "%d.%d", &uname_major, &uname_minor);
/* if we are on Linux 3.17 or lower they use a 256 max and number the GPIOs down
* if we are on 3.18 or higher (ea584595fc85e65796335033dfca25ed655cd0ed) (for now)
* they start at 512 and number down, at some point this is going to change again when
* GPIO moves to a radix.
*/
if (uname_major <= 3 && uname_minor <= 17) {
arch_nr_gpios_adjust = 0;
}
mraa_set_pininfo(b, 0, "INVALID", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 1, "GND", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 2, "GND", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 3, "5v", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 4, "3.3v", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 5, "SPI_CS", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 220);
mraa_set_pininfo(b, 6, "UART1TX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 225);
mraa_set_pininfo(b, 7, "SPIMISO", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 221);
mraa_set_pininfo(b, 8, "UART1RX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 224);
mraa_set_pininfo(b, 9, "SPIMOSI", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 222);
mraa_set_pininfo(b, 10, "UART1CT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 227);
mraa_set_pininfo(b, 11, "SPI_CLK", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 223);
mraa_set_pininfo(b, 12, "UART1RT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 226);
mraa_set_pininfo(b, 13, "I2C_SCL", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 }, 243);
mraa_set_pininfo(b, 14, "I2S_CLK", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 216);
mraa_set_pininfo(b, 15, "I2C_SDA", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 }, 242);
mraa_set_pininfo(b, 16, "I2S_FRM", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 217);
mraa_set_pininfo(b, 17, "UART2TX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 229);
mraa_set_pininfo(b, 18, "I2S_DO", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 219);
mraa_set_pininfo(b, 19, "UART2RX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 228);
mraa_set_pininfo(b, 20, "I2S_DI", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 218);
mraa_set_pininfo(b, 21, "S5_0", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 82);
mraa_set_pininfo(b, 22, "PWM0", (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 },
248); // Assume BIOS configured for PWM
mraa_set_pininfo(b, 23, "S5_1", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 83);
mraa_set_pininfo(b, 24, "PWM1", (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 },
249); // Assume BIOS configured for PWM
mraa_set_pininfo(b, 25, "S5_4", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 84);
if (turbot) {
mraa_set_pininfo(b, 26, "I2S_MCLK", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 253);
mraa_set_pininfo(b, 27, "S5_22", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 104);
} else {
mraa_set_pininfo(b, 26, "IBL8254", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 208);
}
// Set number of i2c adaptors usable from userspace
b->i2c_bus_count = 1;
// Configure i2c adaptor #7 and make it the default
int pin_index_sda, pin_index_scl;
if (mraa_get_pin_index(b, "I2C_SDA", &pin_index_sda) == MRAA_SUCCESS &&
mraa_get_pin_index(b, "I2C_SCL", &pin_index_scl) == MRAA_SUCCESS) {
int bus = mraa_find_i2c_bus(I2CNAME, 0);
if (bus == -1) {
b->i2c_bus_count = 0;
} else {
b->def_i2c_bus = bus;
b->i2c_bus[0].bus_id = b->def_i2c_bus;
b->i2c_bus[0].sda = pin_index_sda;
b->i2c_bus[0].scl = pin_index_scl;
}
}
// Configure PWM
b->pwm_default_period = 500;
b->pwm_max_period = 1000000000;
b->pwm_min_period = 1;
b->spi_bus_count = 1;
b->def_spi_bus = 0;
b->spi_bus[0].bus_id = 0;
b->spi_bus[0].slave_s = 0;
b->spi_bus[0].cs = 5;
b->spi_bus[0].mosi = 9;
b->spi_bus[0].miso = 7;
b->spi_bus[0].sclk = 11;
b->uart_dev_count = 1;
b->def_uart_dev = 0;
b->uart_dev[0].rx = -1;
b->uart_dev[0].tx = -1;
b->uart_dev[0].device_path = "/dev/ttyS0";
return b;
error:
syslog(LOG_CRIT, "minnowmax: Platform failed to initialise");
free(b);
return NULL;
}
mraa_board_t*
mraa_intel_minnow_max()
{
mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
struct utsname running_uname;
int uname_major, uname_minor, max_pins[27];
if (b == NULL) {
return NULL;
}
b->platform_name = PLATFORM_NAME;
b->phy_pin_count = MRAA_INTEL_MINNOW_MAX_PINCOUNT;
b->gpio_count = MRAA_INTEL_MINNOW_MAX_PINCOUNT;
b->aio_count = 0;
b->adc_raw = 0;
b->adc_supported = 0;
b->pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t) * MRAA_INTEL_MINNOW_MAX_PINCOUNT);
if (b->pins == NULL) {
goto error;
}
if (uname(&running_uname) != 0) {
goto error;
}
sscanf(running_uname.release, "%d.%d", &uname_major, &uname_minor);
/* if we are on Linux 3.17 or lower they use a 256 max and number the GPIOs down
* if we are on 3.18 or higher (ea584595fc85e65796335033dfca25ed655cd0ed) (for now)
* they start at 512 and number down, at some point this is going to change again when
* GPIO moves to a radix.
*/
if (uname_major <= 3 && uname_minor <= 17) {
arch_nr_gpios_adjust = 0;
}
mraa_set_pininfo(b, 0, "INVALID", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 1, "GND", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 2, "GND", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 3, "5v", (mraa_pincapabilities_t){ 0, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 4, "3.3v", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 }, -1);
mraa_set_pininfo(b, 5, "SPI_CS", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 220);
mraa_set_pininfo(b, 6, "UART1TX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 225);
mraa_set_pininfo(b, 7, "SPIMISO", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 221);
mraa_set_pininfo(b, 8, "UART1RX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 224);
mraa_set_pininfo(b, 9, "SPIMOSI", (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 }, 222);
mraa_set_pininfo(b, 10, "UART1CT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 227);
mraa_set_pininfo(b, 11, "SPI_CLK", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 223);
mraa_set_pininfo(b, 12, "UART1RT", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 226);
mraa_set_pininfo(b, 13, "I2C_SCL", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 }, 243);
mraa_set_pininfo(b, 14, "I2S_CLK", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 216);
mraa_set_pininfo(b, 15, "I2C_SDA", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 }, 242);
mraa_set_pininfo(b, 16, "I2S_FRM", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 217);
mraa_set_pininfo(b, 17, "UART2TX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 229);
mraa_set_pininfo(b, 18, "I2S_DO", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 219);
mraa_set_pininfo(b, 19, "UART2RX", (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 }, 228);
mraa_set_pininfo(b, 20, "I2S_DI", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 218);
mraa_set_pininfo(b, 21, "S5_0", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 82);
mraa_set_pininfo(b, 22, "PWM0", (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 },
248); // Assume BIOS configured for PWM
mraa_set_pininfo(b, 23, "S5_1", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 83);
mraa_set_pininfo(b, 24, "PWM1", (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 },
249); // Assume BIOS configured for PWM
mraa_set_pininfo(b, 25, "S5_4", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 84);
mraa_set_pininfo(b, 26, "IBL8254", (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 }, 208);
// Set number of i2c adaptors
// Got this from running 'i2cdetect -l'
b->i2c_bus_count = I2C_BUS_COUNT;
// Disable all i2c adaptors
int ici;
for (ici = 0; ici < b->i2c_bus_count; ici++) {
b->i2c_bus[ici].bus_id = -1;
}
// Configure i2c adaptor #7 and make it the default
int pin_index_sda, pin_index_scl;
if (mraa_get_pin_index(b, "I2C_SDA", &pin_index_sda) == MRAA_SUCCESS &&
mraa_get_pin_index(b, "I2C_SCL", &pin_index_scl) == MRAA_SUCCESS) {
b->def_i2c_bus = I2C_BUS_DEFAULT;
b->i2c_bus[b->def_i2c_bus].bus_id = b->def_i2c_bus;
b->i2c_bus[b->def_i2c_bus].sda = pin_index_sda;
b->i2c_bus[b->def_i2c_bus].scl = pin_index_scl;
}
// Configure PWM
b->pwm_default_period = 500;
b->pwm_max_period = 1000000000;
b->pwm_min_period = 1;
b->spi_bus_count = 1;
b->def_spi_bus = 0;
b->spi_bus[0].bus_id = 0;
b->spi_bus[0].slave_s = 0;
b->spi_bus[0].cs = 5;
b->spi_bus[0].mosi = 9;
b->spi_bus[0].miso = 7;
b->spi_bus[0].sclk = 11;
b->uart_dev_count = 0;
return b;
error:
syslog(LOG_CRIT, "minnowmax: Platform failed to initialise");
free(b);
return NULL;
}