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iio: iio consolidate read and write API

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Signed-off-by: Lay, Kuan Loon <kuan.loon.lay@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Lay, Kuan Loon
2015-11-04 18:08:15 +08:00
committed by Brendan Le Foll
parent 219632a1b8
commit edb7f8a215
3 changed files with 123 additions and 66 deletions
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43
examples/iio_driver.c Executable file → Normal file
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@@ -26,14 +26,14 @@
#include "mraa/iio.h"
static void
printword(uint16_t input, mraa_iio_channel *chan)
printword(uint16_t input, mraa_iio_channel* chan)
{
int16_t res;
if (!chan->lendian) {
input = be16toh(input);
input = be16toh(input);
} else {
input = le16toh(input);
input = le16toh(input);
}
input >>= chan->shift;
@@ -43,7 +43,7 @@ printword(uint16_t input, mraa_iio_channel *chan)
} else {
res = input;
}
printf(" value = %05f\n", (float)res);
printf(" value = %05f\n", (float) res);
}
mraa_iio_context iio_device0;
@@ -60,13 +60,14 @@ interrupt(char* data)
printf("channel %d - bytes %d\n", channels[i].index, channels[i].bytes);
switch (channels[i].bytes) {
case 2:
printword(*(uint16_t *)(data + channels[i].location), &channels[i]);
printword(*(uint16_t*) (data + channels[i].location), &channels[i]);
}
}
}
}
void event_interrupt(struct iio_event_data* data)
void
event_interrupt(struct iio_event_data* data)
{
int chan_type;
int modifier;
@@ -77,7 +78,9 @@ void event_interrupt(struct iio_event_data* data)
int different;
mraa_iio_event_extract_event(data, &chan_type, &modifier, &type, &direction, &channel, &channel2, &different);
printf("event time %lld id %lld extracted chan_type %d modifier %d type %d direction %d channel %d channel2 %d different %d\n", data->timestamp, data->id, chan_type, modifier, type, direction, channel, channel2, different);
printf("event time %lld id %lld extracted chan_type %d modifier %d type %d direction %d "
"channel %d channel2 %d different %d\n",
data->timestamp, data->id, chan_type, modifier, type, direction, channel, channel2, different);
}
int
@@ -89,10 +92,28 @@ main()
return EXIT_FAILURE;
}
float iio_value;
mraa_result_t ret = mraa_iio_read(iio_device0, "in_voltage0_raw", &iio_value);
float iio_float;
int iio_integer;
mraa_result_t ret;
ret = mraa_iio_write_float(iio_device0, "in_accel_scale", 0.019163);
if (ret == MRAA_SUCCESS) {
fprintf(stdout, "IIO read %f\n", iio_value);
fprintf(stdout, "IIO write success\n");
}
ret = mraa_iio_read_float(iio_device0, "in_accel_scale", &iio_float);
if (ret == MRAA_SUCCESS) {
fprintf(stdout, "IIO read %f\n", iio_float);
}
ret = mraa_iio_write_integer(iio_device0, "scan_elements/in_accel_x_en", 1);
if (ret == MRAA_SUCCESS) {
fprintf(stdout, "IIO write success\n", iio_integer);
}
ret = mraa_iio_read_integer(iio_device0, "scan_elements/in_accel_x_en", &iio_integer);
if (ret == MRAA_SUCCESS) {
fprintf(stdout, "IIO read %d\n", iio_integer);
}
if (mraa_iio_trigger_buffer(iio_device0, interrupt, NULL) == MRAA_SUCCESS) {
@@ -106,7 +127,7 @@ main()
if (iio_device6 == NULL) {
return EXIT_FAILURE;
}
mraa_iio_event_write(iio_device6, "in_proximity2_thresh_either_en", "1");
mraa_iio_write_integer(iio_device6, "events/in_proximity2_thresh_either_en", 1);
// Blocking until event fired