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mraa-i2c: Added "repeated read" command for stress testing

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Signed-off-by: Henry Bruce <henry.bruce@intel.com>
This commit is contained in:
Henry Bruce
2016-02-11 13:03:51 -08:00
committed by Brendan Le Foll
parent a73882240b
commit 839bdb9011
1 changed files with 19 additions and 9 deletions
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28
examples/mraa-i2c.c
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@@ -176,6 +176,7 @@ i2c_detect_devices(int bus)
int
process_command(int argc, char** argv)
{
int status = 0;
if (strcmp(argv[1], "help") == 0) {
print_help();
return 0;
@@ -194,24 +195,33 @@ process_command(int argc, char** argv)
print_command_error();
return 1;
}
} else if ((strcmp(argv[1], "get") == 0)) {
} else if ((strcmp(argv[1], "get") == 0) || (strcmp(argv[1], "getrpt") == 0)) {
if (argc == 5) {
int interation = 0;
mraa_boolean_t should_repeat = strcmp(argv[1], "getrpt") == 0;
int bus = strtol(argv[2], NULL, 0);
uint8_t device_address = strtol(argv[3], NULL, 0);
uint8_t register_address = strtol(argv[4], NULL, 0);
// fprintf(stdout, "Device %02X, Register = %02X\n", device_address, register_address);
uint8_t data;
if (i2c_get(bus, device_address, register_address, &data) == MRAA_SUCCESS) {
fprintf(stdout, "Register %#02X = %#02X\n", register_address, data);
return 0;
} else {
fprintf(stdout, "i2c get failed\n");
return 1;
}
do {
if (i2c_get(bus, device_address, register_address, &data) == MRAA_SUCCESS) {
if (should_repeat)
fprintf(stdout, "%4d: ", interation);
fprintf(stdout, "Register %#02X = %#02X\n", register_address, data);
status = 0;
} else {
fprintf(stdout, "i2c get failed\n");
status = 1;
}
interation++;
usleep(10000);
} while (should_repeat && status == 0);
} else {
print_command_error();
return 1;
status = 1;
}
return status;
} else if ((strcmp(argv[1], "set") == 0)) {
if (argc == 6) {
int bus = strtol(argv[2], NULL, 0);