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imraa: split imraa up into imraa_io and imraa_lock

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2016-09-27 13:07:45 +01:00
parent c69d1884c9
commit 3971d27f8a
8 changed files with 318 additions and 171 deletions
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142
imraa/imraa.c
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@@ -36,152 +36,14 @@
#include <argp.h>
#include <pwd.h>
#include <mraa/uart.h>
#include <mraa/gpio.h>
#include <mraa/i2c.h>
#include <mraa/pwm.h>
#include <mraa_internal.h>
#include <imraa_arduino.h>
#include <imraa_io.h>
#include <imraa_lock.h>
#define IMRAA_CONF_FILE "/etc/imraa.conf"
#define SYSFS_CLASS_GPIO "/sys/class/gpio"
#define MAX_SIZE 64
typedef struct mraa_io_objects_t {
const char* type;
int index;
bool raw;
const char* label;
const char* user;
} mraa_io_objects_t;
void
imraa_handle_IO(struct json_object* jobj)
{
struct mraa_io_objects_t* mraa_io_obj;
struct json_object* ioarray;
int ionum = 0;
int i;
if (json_object_object_get_ex(jobj, "IO", &ioarray) == true) {
ionum = json_object_array_length(ioarray);
printf("Length of IO array is %d\n", ionum);
mraa_io_obj = (mraa_io_objects_t*) calloc(ionum, sizeof(mraa_io_objects_t));
if (!mraa_io_obj) {
printf("imraa_handle_IO malloc failed\n");
exit(1);
}
int index2 = -1;
// optional index for io configuration;
if (json_object_is_type(ioarray, json_type_array)) {
for (i = 0; i < ionum; i++) {
struct json_object* ioobj = json_object_array_get_idx(ioarray, i);
struct json_object* x;
if (json_object_object_get_ex(ioobj, "type", &x) == true) {
mraa_io_obj[i].type = json_object_get_string(x);
}
if (json_object_object_get_ex(ioobj, "index", &x) == true) {
mraa_io_obj[i].index = json_object_get_int(x);
}
if (json_object_object_get_ex(ioobj, "raw", &x) == true) {
mraa_io_obj[i].raw = json_object_get_boolean(x);
}
if (json_object_object_get_ex(ioobj, "label", &x) == true) {
mraa_io_obj[i].label = json_object_get_string(x);
}
if (json_object_object_get_ex(ioobj, "index2", &x) == true) {
index2 = json_object_get_int(x);
}
if (json_object_object_get_ex(ioobj, "user", &x) == true) {
mraa_io_obj[i].user = json_object_get_string(x);
}
// starting io configuration
if (strcmp(mraa_io_obj[i].type, "gpio") == 0) {
mraa_gpio_context gpio = NULL;
if (mraa_io_obj[i].raw) {
gpio = mraa_gpio_init_raw(mraa_io_obj[i].index);
} else {
gpio = mraa_gpio_init(mraa_io_obj[i].index);
}
if (gpio != NULL) {
if (mraa_io_obj[i].user != NULL) {
int sysfs_gpio_pin = mraa_gpio_get_pin_raw(gpio);
if (sysfs_gpio_pin >= 0) {
char bu[MAX_SIZE];
snprintf(bu, MAX_SIZE, SYSFS_CLASS_GPIO "/gpio%d/value", sysfs_gpio_pin);
struct passwd* user = getpwnam(mraa_io_obj[i].user);
if (user != NULL) {
if (chown(bu, user->pw_uid, user->pw_gid) == -1) {
fprintf(stderr, "Couldn't change ownership of file %s to %d:%d\n", bu, user->pw_uid, user->pw_gid);
} else {
fprintf(stderr, "Invalid user %s\n", mraa_io_obj[i].user);
}
}
}
mraa_result_t r = mraa_gpio_owner(gpio, 0);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
}
mraa_gpio_close(gpio);
}
} else if (strcmp(mraa_io_obj[i].type, "i2c") == 0) {
mraa_i2c_context i2c = NULL;
if (mraa_io_obj[i].raw) {
i2c = mraa_i2c_init_raw(mraa_io_obj[i].index);
} else {
i2c = mraa_i2c_init(mraa_io_obj[i].index);
}
if (i2c != NULL) {
mraa_i2c_stop(i2c);
}
} else if (strcmp(mraa_io_obj[i].type, "pwm") == 0) {
mraa_pwm_context pwm = NULL;
if (mraa_io_obj[i].raw) {
pwm = mraa_pwm_init_raw(index2, mraa_io_obj[i].index);
} else {
pwm = mraa_pwm_init(mraa_io_obj[i].index);
}
if (pwm != NULL) {
mraa_result_t r = mraa_pwm_owner(pwm, 0);
if (r != MRAA_SUCCESS) {
mraa_result_print(r);
}
mraa_pwm_close(pwm);
}
} else if (strcmp(mraa_io_obj[i].type, "spi") == 0) {
mraa_spi_context spi = NULL;
if (mraa_io_obj[i].raw) {
spi = mraa_spi_init_raw(mraa_io_obj[i].index, index2);
} else {
spi = mraa_spi_init(mraa_io_obj[i].index);
}
if (spi != NULL) {
mraa_spi_stop(spi);
}
} else if (strcmp(mraa_io_obj[i].type, "uart") == 0) {
mraa_uart_context uart = NULL;
if (mraa_io_obj[i].raw) {
uart = mraa_uart_init_raw(mraa_io_obj[i].label);
} else {
uart = mraa_uart_init(mraa_io_obj[i].index);
}
if (uart != NULL) {
mraa_uart_stop(uart);
}
}
}
}
} else {
fprintf(stderr, "IO array incorrectly parsed\n");
}
free(mraa_io_obj);
}
}
int
imraa_check_version(struct json_object* jobj)
{