* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+#define _GNU_SOURCE
#include <stdlib.h>
#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include "common.h"
#include "x86/intel_de3815.h"
#define PLATFORM_NAME "Intel DE3815"
#define MAX_SIZE 64
#define SYSFS_CLASS_GPIO "/sys/class/gpio"
+#define I2CNAME "designware"
mraa_board_t*
mraa_intel_de3815()
b->pins[17].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };
// BUS DEFINITIONS
- b->i2c_bus_count = 2;
- b->def_i2c_bus = 0;
- b->i2c_bus[0].bus_id = 0;
- b->i2c_bus[0].sda = 12;
- b->i2c_bus[0].scl = 13;
-
- b->i2c_bus[1].bus_id = 1;
- b->i2c_bus[1].sda = 14;
- b->i2c_bus[1].scl = 15;
+ int fd;
+ if (mraa_file_exist("/dev/i2c-0")) {
+ b->i2c_bus_count = 2;
+ int i = 0;
+ int suc = 0;
+ for (i = 0; i < 8; i++) {
+ char path[MAX_SIZE];
+ snprintf(path, MAX_SIZE, "/sys/class/i2c-dev/i2c-%u/name", i);
+ fd = open(path, O_RDONLY);
+ off_t size = lseek(fd, 0, SEEK_END);
+ char value[MAX_SIZE];
+ lseek(fd, 0, SEEK_SET);
+ ssize_t r = read(fd, value, size);
+ if (r > 0) {
+ if (strcasestr(value, I2CNAME) != NULL) {
+ suc = 1;
+ b->i2c_bus_count = 2;
+ b->def_i2c_bus = 0;
+ b->i2c_bus[0].bus_id = i;
+ b->i2c_bus[0].sda = 12;
+ b->i2c_bus[0].scl = 13;
+
+ b->i2c_bus[1].bus_id = i+1;
+ b->i2c_bus[1].sda = 14;
+ b->i2c_bus[1].scl = 15;
+ break;
+ }
+ } else {
+ syslog(LOG_ERR, "mraa: sysfs i2cdev failed");
+ break;
+ }
+ close(fd);
+ }
+
+ if (!suc) {
+ syslog(LOG_WARNING, "mraa: no i2c-dev detected, load i2c-dev");
+ b->i2c_bus_count = 0;
+ b->def_i2c_bus = 0;
+ }
+ } else {
+ syslog(LOG_WARNING, "mraa: no i2c-dev detected, load i2c-dev");
+ b->i2c_bus_count = 0;
+ b->def_i2c_bus = 0;
+ }
+ close(fd);
b->spi_bus_count = 1;
b->def_spi_bus = 0;