#include "description.h"
#include "control.h"
#include "calibration.h"
-#include "filtering.h"
/*
* This table maps syfs entries in scan_elements directories to sensor types,
"quat_x", "quat_y", "quat_z", "quat_w")
DECLARE_SENSOR0("temp", SENSOR_TYPE_AMBIENT_TEMPERATURE )
DECLARE_SENSOR0("proximity", SENSOR_TYPE_PROXIMITY )
- DECLARE_SENSOR3("anglvel", SENSOR_TYPE_GYROSCOPE_UNCALIBRATED, "x", "y", "z")
+ DECLARE_VIRTUAL(SENSOR_TYPE_GYROSCOPE_UNCALIBRATED)
};
#define CATALOG_SIZE ARRAY_SIZE(sensor_catalog)
/* We equate sensor handles to indices in these tables */
struct sensor_t sensor_desc[MAX_SENSORS]; /* Android-level descriptors */
-struct sensor_info_t sensor_info[MAX_SENSORS]; /* Internal descriptors */
+struct sensor_info_t sensor[MAX_SENSORS]; /* Internal descriptors */
int sensor_count; /* Detected sensors */
-
static void setup_properties_from_pld(int s, int panel, int rotation,
int num_channels)
{
}
if (xy_swap) {
- sensor_info[s].order[0] = 1;
- sensor_info[s].order[1] = 0;
- sensor_info[s].order[2] = 2;
- sensor_info[s].quirks |= QUIRK_FIELD_ORDERING;
+ sensor[s].order[0] = 1;
+ sensor[s].order[1] = 0;
+ sensor[s].order[2] = 2;
+ sensor[s].quirks |= QUIRK_FIELD_ORDERING;
}
- sensor_info[s].channel[0].opt_scale = x;
- sensor_info[s].channel[1].opt_scale = y;
- sensor_info[s].channel[2].opt_scale = z;
+ sensor[s].channel[0].opt_scale = x;
+ sensor[s].channel[1].opt_scale = y;
+ sensor[s].channel[2].opt_scale = z;
}
setup_properties_from_pld(s, panel, rotation, num_channels);
}
+static void populate_descriptors(int s, int sensor_type)
+{
+ /* Initialize Android-visible descriptor */
+ sensor_desc[s].name = sensor_get_name(s);
+ sensor_desc[s].vendor = sensor_get_vendor(s);
+ sensor_desc[s].version = sensor_get_version(s);
+ sensor_desc[s].handle = s;
+ sensor_desc[s].type = sensor_type;
+
+ sensor_desc[s].maxRange = sensor_get_max_range(s);
+ sensor_desc[s].resolution = sensor_get_resolution(s);
+ sensor_desc[s].power = sensor_get_power(s);
+ sensor_desc[s].stringType = sensor_get_string_type(s);
+
+ /* None of our supported sensors requires a special permission.
+ * If this will be the case we should implement a sensor_get_perm
+ */
+ sensor_desc[s].requiredPermission = "";
+ sensor_desc[s].flags = sensor_get_flags(s);
+ sensor_desc[s].minDelay = sensor_get_min_delay(s);
+ sensor_desc[s].maxDelay = sensor_get_max_delay(s);
+
+ ALOGI("Sensor %d (%s) type(%d) minD(%d) maxD(%d) flags(%2.2x)\n",
+ s, sensor[s].friendly_name, sensor_desc[s].type,
+ sensor_desc[s].minDelay, sensor_desc[s].maxDelay, sensor_desc[s].flags);
+
+ /* We currently do not implement batching when we'll so
+ * these should be overriden appropriately
+ */
+ sensor_desc[s].fifoReservedEventCount = 0;
+ sensor_desc[s].fifoMaxEventCount = 0;
+}
+
+static void add_virtual_sensor (int catalog_index)
+{
+ int s;
+ int sensor_type;
+
+ if (sensor_count == MAX_SENSORS) {
+ ALOGE("Too many sensors!\n");
+ return;
+ }
+
+ sensor_type = sensor_catalog[catalog_index].type;
+
+ s = sensor_count;
+
+ sensor[s].is_virtual = 1;
+ sensor[s].catalog_index = catalog_index;
+ sensor[s].type = sensor_type;
+
+ populate_descriptors(s, sensor_type);
+
+ /* Initialize fields related to sysfs reads offloading */
+ sensor[s].thread_data_fd[0] = -1;
+ sensor[s].thread_data_fd[1] = -1;
+ sensor[s].acquisition_thread = -1;
+
+ sensor_count++;
+}
static void add_sensor (int dev_num, int catalog_index, int use_polling)
{
s = sensor_count;
- sensor_info[s].dev_num = dev_num;
- sensor_info[s].catalog_index = catalog_index;
+ sensor[s].dev_num = dev_num;
+ sensor[s].catalog_index = catalog_index;
+ sensor[s].type = sensor_type;
num_channels = sensor_catalog[catalog_index].num_channels;
if (use_polling)
- sensor_info[s].num_channels = 0;
+ sensor[s].num_channels = 0;
else
- sensor_info[s].num_channels = num_channels;
+ sensor[s].num_channels = num_channels;
prefix = sensor_catalog[catalog_index].tag;
* receiving the illumination sensor calibration inputs from
* the Android properties and setting it within sysfs
*/
- if (sensor_catalog[catalog_index].type == SENSOR_TYPE_LIGHT) {
+ if (sensor_type == SENSOR_TYPE_LIGHT) {
retval = sensor_get_illumincalib(s);
if (retval > 0) {
sprintf(sysfs_path, ILLUMINATION_CALIBPATH, dev_num);
/* Read name attribute, if available */
sprintf(sysfs_path, NAME_PATH, dev_num);
- sysfs_read_str(sysfs_path, sensor_info[s].internal_name, MAX_NAME_SIZE);
+ sysfs_read_str(sysfs_path, sensor[s].internal_name, MAX_NAME_SIZE);
/* See if we have general offsets and scale values for this sensor */
sprintf(sysfs_path, SENSOR_OFFSET_PATH, dev_num, prefix);
- sysfs_read_float(sysfs_path, &sensor_info[s].offset);
+ sysfs_read_float(sysfs_path, &sensor[s].offset);
+
+ sprintf(sysfs_path, SENSOR_SCALE_PATH, dev_num, prefix);
+ if (!sensor_get_fl_prop(s, "scale", &scale)) {
+ /*
+ * There is a chip preferred scale specified,
+ * so try to store it in sensor's scale file
+ */
+ if (sysfs_write_float(sysfs_path, scale) == -1 && errno == ENOENT) {
+ ALOGE("Failed to store scale[%f] into %s - file is missing", scale, sysfs_path);
+ /* Store failed, try to store the scale into channel specific file */
+ for (c = 0; c < num_channels; c++)
+ {
+ sprintf(sysfs_path, BASE_PATH "%s", dev_num,
+ sensor_catalog[catalog_index].channel[c].scale_path);
+ if (sysfs_write_float(sysfs_path, scale) == -1)
+ ALOGE("Failed to store scale[%f] into %s", scale, sysfs_path);
+ }
+ }
+ }
sprintf(sysfs_path, SENSOR_SCALE_PATH, dev_num, prefix);
if (!sysfs_read_float(sysfs_path, &scale)) {
- sensor_info[s].scale = scale;
+ sensor[s].scale = scale;
ALOGI("Scale path:%s scale:%f dev_num:%d\n",
sysfs_path, scale, dev_num);
} else {
- sensor_info[s].scale = 1;
+ sensor[s].scale = 1;
/* Read channel specific scale if any*/
for (c = 0; c < num_channels; c++)
sensor_catalog[catalog_index].channel[c].scale_path);
if (!sysfs_read_float(sysfs_path, &scale)) {
- sensor_info[s].channel[c].scale = scale;
- sensor_info[s].scale = 0;
+ sensor[s].channel[c].scale = scale;
+ sensor[s].scale = 0;
ALOGI( "Scale path:%s "
"channel scale:%f dev_num:%d\n",
/* Set default scaling - if num_channels is zero, we have one channel */
- sensor_info[s].channel[0].opt_scale = 1;
+ sensor[s].channel[0].opt_scale = 1;
for (c = 1; c < num_channels; c++)
- sensor_info[s].channel[c].opt_scale = 1;
+ sensor[s].channel[c].opt_scale = 1;
/* Read ACPI _PLD attributes for this sensor, if there are any */
decode_placement_information(dev_num, num_channels, s);
ch_name = sensor_catalog[catalog_index].channel[c].name;
sprintf(suffix, "%s.opt_scale", ch_name);
if (!sensor_get_fl_prop(s, suffix, &opt_scale))
- sensor_info[s].channel[c].opt_scale = opt_scale;
+ sensor[s].channel[c].opt_scale = opt_scale;
}
} else
if (!sensor_get_fl_prop(s, "opt_scale", &opt_scale))
- sensor_info[s].channel[0].opt_scale = opt_scale;
-
- /* Initialize Android-visible descriptor */
- sensor_desc[s].name = sensor_get_name(s);
- sensor_desc[s].vendor = sensor_get_vendor(s);
- sensor_desc[s].version = sensor_get_version(s);
- sensor_desc[s].handle = s;
- sensor_desc[s].type = sensor_type;
- sensor_desc[s].maxRange = sensor_get_max_range(s);
- sensor_desc[s].resolution = sensor_get_resolution(s);
- sensor_desc[s].power = sensor_get_power(s);
- sensor_desc[s].stringType = sensor_get_string_type(s);
+ sensor[s].channel[0].opt_scale = opt_scale;
- /* None of our supported sensors requires a special permission.
- * If this will be the case we should implement a sensor_get_perm
- */
- sensor_desc[s].requiredPermission = "";
- sensor_desc[s].flags = sensor_get_flags(s);
- sensor_desc[s].minDelay = sensor_get_min_delay(s);
- sensor_desc[s].maxDelay = sensor_get_max_delay(s);
- ALOGI("Sensor %d (%s) type(%d) minD(%d) maxD(%d) flags(%2.2x)\n",
- s, sensor_info[s].friendly_name, sensor_desc[s].type,
- sensor_desc[s].minDelay, sensor_desc[s].maxDelay, sensor_desc[s].flags);
+ populate_descriptors(s, sensor_type);
- /* We currently do not implement batching when we'll so
- * these should be overriden appropriately
- */
- sensor_desc[s].fifoReservedEventCount = 0;
- sensor_desc[s].fifoMaxEventCount = 0;
+ /* Populate the quirks array */
+ sensor_get_quirks(s);
- if (sensor_info[s].internal_name[0] == '\0') {
+ if (sensor[s].internal_name[0] == '\0') {
/*
* In case the kernel-mode driver doesn't expose a name for
* the iio device, use (null)-dev%d as the trigger name...
* This can be considered a kernel-mode iio driver bug.
*/
ALOGW("Using null trigger on sensor %d (dev %d)\n", s, dev_num);
- strcpy(sensor_info[s].internal_name, "(null)");
+ strcpy(sensor[s].internal_name, "(null)");
}
- if (sensor_type == SENSOR_TYPE_GYROSCOPE ||
- sensor_type == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED) {
+ if (sensor_type == SENSOR_TYPE_GYROSCOPE) {
struct gyro_cal* calibration_data = calloc(1, sizeof(struct gyro_cal));
- sensor_info[s].cal_data = calibration_data;
- denoise_median_init(s, 7, 3);
+ sensor[s].cal_data = calibration_data;
}
if (sensor_type == SENSOR_TYPE_MAGNETIC_FIELD) {
struct compass_cal* calibration_data = calloc(1, sizeof(struct compass_cal));
- sensor_info[s].cal_data = calibration_data;
+ sensor[s].cal_data = calibration_data;
}
-
+ sensor[s].max_cal_level = sensor_get_cal_steps(s);
/* Select one of the available sensor sample processing styles */
select_transform(s);
/* Initialize fields related to sysfs reads offloading */
- sensor_info[s].thread_data_fd[0] = -1;
- sensor_info[s].thread_data_fd[1] = -1;
- sensor_info[s].acquisition_thread = -1;
-
- sensor_info[s].meta_data_pending = 0;
+ sensor[s].thread_data_fd[0] = -1;
+ sensor[s].thread_data_fd[1] = -1;
+ sensor[s].acquisition_thread = -1;
/* Check if we have a special ordering property on this sensor */
- if (sensor_get_order(s, sensor_info[s].order))
- sensor_info[s].quirks |= QUIRK_FIELD_ORDERING;
+ if (sensor_get_order(s, sensor[s].order))
+ sensor[s].quirks |= QUIRK_FIELD_ORDERING;
sensor_count++;
}
continue;
/* If the name matches a catalog entry, flag it */
- for (i = 0; i<CATALOG_SIZE; i++) {
- /* This will be added separately later */
- if (sensor_catalog[i].type == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED)
+ for (i = 0; i < CATALOG_SIZE; i++) {
+ /* No discovery for virtual sensors */
+ if (sensor_catalog[i].is_virtual)
continue;
for (c=0; c<sensor_catalog[i].num_channels; c++)
if (!strcmp(d->d_name,sensor_catalog[i].channel[c].raw_path) ||
/* Compare en entry to known ones and create matching sensors */
for (i = 0; i<CATALOG_SIZE; i++) {
- if (sensor_catalog[i].type == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED)
+ /* No discovery for virtual sensors */
+ if (sensor_catalog[i].is_virtual)
continue;
if (!strcmp(d->d_name,
sensor_catalog[i].channel[0].en_path)) {
int catalog_size = CATALOG_SIZE;
for (i=0; i<sensor_count; i++)
- switch (sensor_catalog[sensor_info[i].catalog_index].type) {
+ switch (sensor[i].type) {
case SENSOR_TYPE_ACCELEROMETER:
has_acc = 1;
break;
}
}
-static int is_continuous (int s)
-{
- /* Is sensor s of the continous trigger type kind? */
-
- int catalog_index = sensor_info[s].catalog_index;
- int sensor_type = sensor_catalog[catalog_index].type;
-
- switch (sensor_type) {
- case SENSOR_TYPE_ACCELEROMETER:
- case SENSOR_TYPE_MAGNETIC_FIELD:
- case SENSOR_TYPE_ORIENTATION:
- case SENSOR_TYPE_GYROSCOPE:
- case SENSOR_TYPE_PRESSURE:
- case SENSOR_TYPE_GRAVITY:
- case SENSOR_TYPE_LINEAR_ACCELERATION:
- case SENSOR_TYPE_ROTATION_VECTOR:
- case SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED:
- case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
- case SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR:
- return 1;
-
- default:
- return 0;
- }
-}
-
-
static void propose_new_trigger (int s, char trigger_name[MAX_NAME_SIZE],
int sensor_name_len)
{
if (!memcmp(suffix, "dev", 3))
return;
- /*
- * If we found any-motion trigger, record it and force the sensor to
- * automatic intermediate event generation mode, at least if it is of a
- * continuously firing sensor type.
- */
+ /* If we found any-motion trigger, record it */
- if (!memcmp(suffix, "any-motion-", 11) && is_continuous(s)) {
- /* Update the any-motion trigger name to use for this sensor */
- strcpy(sensor_info[s].motion_trigger_name, trigger_name);
+ if (!memcmp(suffix, "any-motion-", 11)) {
+ strcpy(sensor[s].motion_trigger_name, trigger_name);
return;
}
- /* Update the initial trigger name to use for this sensor */
- strcpy(sensor_info[s].init_trigger_name, trigger_name);
+ /*
+ * It's neither the default "dev" nor an "any-motion" one. Make sure we
+ * use this though, as we may not have any other indication of the name
+ * of the trigger to use with this sensor.
+ */
+ strcpy(sensor[s].init_trigger_name, trigger_name);
}
/* See if that matches a sensor */
for (s=0; s<sensor_count; s++)
- if (sensor_info[s].dev_num == dev_num) {
+ if (sensor[s].dev_num == dev_num) {
- sensor_name_len = strlen(sensor_info[s].internal_name);
+ sensor_name_len = strlen(sensor[s].internal_name);
if (!strncmp(name,
- sensor_info[s].internal_name,
+ sensor[s].internal_name,
sensor_name_len))
/* Switch to new trigger if appropriate */
propose_new_trigger(s, name, sensor_name_len);
/* By default, use the name-dev convention that most drivers use */
for (s=0; s<sensor_count; s++)
- snprintf(sensor_info[s].init_trigger_name,
+ snprintf(sensor[s].init_trigger_name,
MAX_NAME_SIZE, "%s-dev%d",
- sensor_info[s].internal_name, sensor_info[s].dev_num);
+ sensor[s].internal_name, sensor[s].dev_num);
/* Now have a look to /sys/bus/iio/devices/triggerX entries */
update_sensor_matching_trigger_name(buf);
}
+ /*
+ * Certain drivers expose only motion triggers even though they should
+ * be continous. For these, use the default trigger name as the motion
+ * trigger. The code generating intermediate events is dependent on
+ * motion_trigger_name being set to a non empty string.
+ */
+
for (s=0; s<sensor_count; s++)
- if (sensor_info[s].num_channels) {
- ALOGI( "Sensor %d (%s) default trigger: %s\n", s,
- sensor_info[s].friendly_name,
- sensor_info[s].init_trigger_name);
- if (sensor_info[s].motion_trigger_name[0])
- ALOGI( "Sensor %d (%s) motion trigger: %s\n",
- s, sensor_info[s].friendly_name,
- sensor_info[s].motion_trigger_name);
+ if ((sensor[s].quirks & QUIRK_TERSE_DRIVER) &&
+ sensor[s].motion_trigger_name[0] == '\0')
+ strcpy( sensor[s].motion_trigger_name,
+ sensor[s].init_trigger_name);
+
+ for (s=0; s<sensor_count; s++)
+ if (sensor[s].num_channels) {
+ ALOGI("Sensor %d (%s) default trigger: %s\n", s,
+ sensor[s].friendly_name,
+ sensor[s].init_trigger_name);
+ if (sensor[s].motion_trigger_name[0])
+ ALOGI("Sensor %d (%s) motion trigger: %s\n",
+ s, sensor[s].friendly_name,
+ sensor[s].motion_trigger_name);
}
}
{
unsigned int has_gyr = 0;
unsigned int dev_num;
- int i, c;
- unsigned int is_poll_sensor;
- char buf[MAX_NAME_SIZE];
+ int i;
int cal_idx = 0;
int uncal_idx = 0;
int catalog_size = CATALOG_SIZE; /* Avoid GCC sign comparison warning */
+ if (sensor_count == MAX_SENSORS)
+ return;
/* Checking to see if we have a gyroscope - we can only have uncal if we have the base sensor */
for (i=0; i < sensor_count; i++)
- if(sensor_catalog[sensor_info[i].catalog_index].type == SENSOR_TYPE_GYROSCOPE)
- {
+ if (sensor[i].type == SENSOR_TYPE_GYROSCOPE) {
has_gyr=1;
- dev_num = sensor_info[i].dev_num;
- is_poll_sensor = !sensor_info[i].num_channels;
cal_idx = i;
break;
}
- /*
- * If we have a gyro we can add the uncalibrated sensor of the same type and
- * on the same dev_num. We will save indexes for easy finding and also save the
- * channel specific information.
- */
- if (has_gyr)
+ if (has_gyr) {
+ uncal_idx = sensor_count;
+ sensor[uncal_idx].base_count = 1;
+ sensor[uncal_idx].base_idx[0] = cal_idx;
+
for (i=0; i<catalog_size; i++)
if (sensor_catalog[i].type == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED) {
- add_sensor(dev_num, i, is_poll_sensor);
-
- uncal_idx = sensor_count - 1; /* Just added uncalibrated sensor */
-
- /* Similar to build_sensor_report_maps */
- for (c = 0; c < sensor_info[uncal_idx].num_channels; c++)
- {
- memcpy( &(sensor_info[uncal_idx].channel[c].type_spec),
- &(sensor_info[cal_idx].channel[c].type_spec),
- sizeof(sensor_info[uncal_idx].channel[c].type_spec));
- sensor_info[uncal_idx].channel[c].type_info = sensor_info[cal_idx].channel[c].type_info;
- sensor_info[uncal_idx].channel[c].offset = sensor_info[cal_idx].channel[c].offset;
- sensor_info[uncal_idx].channel[c].size = sensor_info[cal_idx].channel[c].size;
- }
- sensor_info[uncal_idx].pair_idx = cal_idx;
- sensor_info[cal_idx].pair_idx = uncal_idx;
- strncpy(sensor_info[uncal_idx].init_trigger_name,
- sensor_info[cal_idx].init_trigger_name,
- MAX_NAME_SIZE);
- strncpy(sensor_info[uncal_idx].motion_trigger_name,
- sensor_info[cal_idx].motion_trigger_name,
- MAX_NAME_SIZE);
-
- /* Add "Uncalibrated " prefix to sensor name */
- strcpy(buf, sensor_info[cal_idx].friendly_name);
- snprintf(sensor_info[uncal_idx].friendly_name,
- MAX_NAME_SIZE,
- "%s %s", "Uncalibrated", buf);
+ add_virtual_sensor(i);
break;
}
+ }
}
void enumerate_sensors (void)
* Create the uncalibrated counterpart to the compensated gyroscope.
* This is is a new sensor type in Android 4.4.
*/
- uncalibrated_gyro_check();
+
+ uncalibrated_gyro_check();
}
void delete_enumeration_data (void)
{
-
int i;
for (i = 0; i < sensor_count; i++)
- switch (sensor_catalog[sensor_info[i].catalog_index].type) {
+ switch (sensor[i].type) {
case SENSOR_TYPE_MAGNETIC_FIELD:
- if (sensor_info[i].cal_data != NULL) {
- free(sensor_info[i].cal_data);
- sensor_info[i].cal_data = NULL;
- sensor_info[i].cal_level = 0;
+ if (sensor[i].cal_data != NULL) {
+ free(sensor[i].cal_data);
+ sensor[i].cal_data = NULL;
+ sensor[i].cal_level = 0;
}
break;
- case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
+
case SENSOR_TYPE_GYROSCOPE:
- if (sensor_info[i].cal_data != NULL) {
- free(sensor_info[i].cal_data);
- sensor_info[i].cal_data = NULL;
- sensor_info[i].cal_level = 0;
+ if (sensor[i].cal_data != NULL) {
+ free(sensor[i].cal_data);
+ sensor[i].cal_data = NULL;
+ sensor[i].cal_level = 0;
}
break;
- if (sensor_info[i].filter != NULL) {
- denoise_median_release(i);
- }
+
default:
break;
}
}
-int get_sensors_list( struct sensors_module_t* module,
- struct sensor_t const** list)
+int get_sensors_list (__attribute__((unused)) struct sensors_module_t* module,
+ struct sensor_t const** list)
{
*list = sensor_desc;
return sensor_count;