packaging: also support rpmbuild from Tizen:2.3

[contrib/mraa.git] / examples / iio_driver.c

diff --git a/examples/iio_driver.c b/examples/iio_driver.c
index eb9cedd..824e0b1 100644 (file)
--- a/examples/iio_driver.c
+++ b/examples/iio_driver.c
@@ -23,27 +23,123 @@
  */
 
 #include <unistd.h>
-//! [Interesting]
 #include "mraa/iio.h"
 
+static void
+printword(uint16_t input, mraa_iio_channel* chan)
+{
+    int16_t res;
+
+    if (!chan->lendian) {
+        input = be16toh(input);
+    } else {
+        input = le16toh(input);
+    }
+
+    input >>= chan->shift;
+    input &= chan->mask;
+    if (chan->signedd) {
+        res = (int16_t)(input << (16 - chan->bits_used)) >> (16 - chan->bits_used);
+    } else {
+        res = input;
+    }
+    printf("  value = %05f\n", (float) res);
+}
+
+mraa_iio_context iio_device0;
+mraa_iio_context iio_device6;
+
+void
+interrupt(char* data)
+{
+    mraa_iio_channel* channels = mraa_iio_get_channels(iio_device0);
+    int i = 0;
+
+    for (i; i < mraa_iio_get_channel_count(iio_device0); i++) {
+        if (channels[i].enabled) {
+            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]);
+            }
+        }
+    }
+}
+
+void
+event_interrupt(struct iio_event_data* data)
+{
+    int chan_type;
+    int modifier;
+    int type;
+    int direction;
+    int channel;
+    int channel2;
+    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);
+}
+
 int
 main()
 {
-    mraa_iio_context iio_device0;
-
+    //! [Interesting]
     iio_device0 = mraa_iio_init(0);
     if (iio_device0 == NULL) {
         return EXIT_FAILURE;
     }
 
-    float iio_value;
-    mraa_result_t ret = mraa_iio_read(iio_device0, 0, "raw", &iio_value);
+    float iio_float;
+    int iio_int;
+    mraa_result_t ret;
+
+    ret = mraa_iio_write_float(iio_device0, "in_accel_scale", 0.019163);
+    if (ret == MRAA_SUCCESS) {
+        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_int(iio_device0, "scan_elements/in_accel_x_en", 1);
+    if (ret == MRAA_SUCCESS) {
+        fprintf(stdout, "IIO write success\n");
+    }
+
+    ret = mraa_iio_read_int(iio_device0, "scan_elements/in_accel_x_en", &iio_int);
     if (ret == MRAA_SUCCESS) {
-        fprintf(stdout, "IIO read %f\n", iio_value);
+        fprintf(stdout, "IIO read %d\n", iio_int);
+    }
+
+    if (mraa_iio_trigger_buffer(iio_device0, interrupt, NULL) == MRAA_SUCCESS) {
+        sleep(100);
+        return EXIT_SUCCESS;
+    }
+
+    /*
+    struct iio_event_data event;
+    iio_device6 = mraa_iio_init(6);
+    if (iio_device6 == NULL) {
+        return EXIT_FAILURE;
+    }
+    mraa_iio_write_int(iio_device6, "events/in_proximity2_thresh_either_en", 1);
+
+
+    // Blocking until event fired
+    if (mraa_iio_event_poll(iio_device6, &event) == MRAA_SUCCESS) {
+        event_interrupt(&event); //just to show data
     }
 
-    mraa_iio_stop(iio_device0);
+    if (mraa_iio_event_setup_callback(iio_device6, event_interrupt, NULL) == MRAA_SUCCESS) {
+        sleep(100);
+        return EXIT_SUCCESS;
+    }*/
 
-    return EXIT_SUCCESS;
+    //! [Interesting]
+    return EXIT_FAILURE;
 }
-//! [Interesting]