From 0c2e6b3feb59560333e7d4e0b1ff24e83c26ccb4 Mon Sep 17 00:00:00 2001 From: Paul Kocialkowski Date: Mon, 25 Feb 2013 19:40:48 +0100 Subject: Piranha Sensors module and geomagneticd Signed-off-by: Paul Kocialkowski --- sensors/piranha_sensors.c | 283 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 283 insertions(+) create mode 100644 sensors/piranha_sensors.c (limited to 'sensors/piranha_sensors.c') diff --git a/sensors/piranha_sensors.c b/sensors/piranha_sensors.c new file mode 100644 index 0000000..c1fd534 --- /dev/null +++ b/sensors/piranha_sensors.c @@ -0,0 +1,283 @@ +/* + * Copyright (C) 2013 Paul Kocialkowski + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#define LOG_TAG "piranha_sensors" +#include + +#include "piranha_sensors.h" + +/* + * Sensors list + */ + +struct sensor_t piranha_sensors[] = { + { "BMA254 Acceleration Sensor", "Bosch", 1, SENSOR_TYPE_ACCELEROMETER, + SENSOR_TYPE_ACCELEROMETER, 19.6f, 0.0383f, 0.13f, 10000, {}, }, + { "YAS530 Magnetic Sensor", "Yamaha", 1, SENSOR_TYPE_MAGNETIC_FIELD, + SENSOR_TYPE_MAGNETIC_FIELD, 800.0f, 0.3f, 4.0f, 10000, {}, }, + { "YAS Orientation Sensor", "Yamaha", 1, SENSOR_TYPE_ORIENTATION, + SENSOR_TYPE_ORIENTATION, 360.0f, 0.1f, 0.0f, 10000, {}, }, +#ifdef TARGET_DEVICE_P5100 + { "BH1721 Light Sensor", "ROHM", 1, SENSOR_TYPE_LIGHT, + SENSOR_TYPE_LIGHT, 0.0f, 0.0f, 0.0f, 0, {}, }, +#endif +#ifdef TARGET_DEVICE_P3100 + { "GP2A Light Sensor", "SHARP", 1, SENSOR_TYPE_LIGHT, + SENSOR_TYPE_LIGHT, 0.0f, 0.0f, 0.0f, 0, {}, }, + { "GP2A Proximity Sensor", "SHARP", 1, SENSOR_TYPE_PROXIMITY, + SENSOR_TYPE_PROXIMITY, 5.0f, 0.0f, 0.0f, 0, {}, }, +#endif +}; + +int piranha_sensors_count = sizeof(piranha_sensors) / sizeof(struct sensor_t); + +struct piranha_sensors_handlers *piranha_sensors_handlers[] = { + &bma250, + &yas530c, + &yas_orientation, +#ifdef TARGET_DEVICE_P5100 + &bh1721, +#endif +#ifdef TARGET_DEVICE_P3100 + &gp2a_light, + &gp2a_proximity, +#endif +}; + +int piranha_sensors_handlers_count = sizeof(piranha_sensors_handlers) / + sizeof(struct piranha_sensors_handlers *); + +/* + * Piranha Sensors + */ + +int piranha_sensors_activate(struct sensors_poll_device_t *dev, int handle, int enabled) +{ + struct piranha_sensors_device *device; + int i; + + LOGD("%s(%p, %d, %d)", __func__, dev, handle, enabled); + + if (dev == NULL) + return -EINVAL; + + device = (struct piranha_sensors_device *) dev; + + if (device->handlers == NULL || device->handlers_count <= 0) + return -EINVAL; + + for (i=0 ; i < device->handlers_count ; i++) { + if (device->handlers[i] == NULL) + continue; + + if (device->handlers[i]->handle == handle) { + if (enabled && device->handlers[i]->activate != NULL) + return device->handlers[i]->activate(device->handlers[i]); + else if (!enabled && device->handlers[i]->deactivate != NULL) + return device->handlers[i]->deactivate(device->handlers[i]); + } + } + + return -1; +} + +int piranha_sensors_set_delay(struct sensors_poll_device_t *dev, int handle, int64_t ns) +{ + struct piranha_sensors_device *device; + int i; + + LOGD("%s(%p, %d, %ld)", __func__, dev, handle, (long int) ns); + + if (dev == NULL) + return -EINVAL; + + device = (struct piranha_sensors_device *) dev; + + if (device->handlers == NULL || device->handlers_count <= 0) + return -EINVAL; + + for (i=0 ; i < device->handlers_count ; i++) { + if (device->handlers[i] == NULL) + continue; + + if (device->handlers[i]->handle == handle && device->handlers[i]->set_delay != NULL) + return device->handlers[i]->set_delay(device->handlers[i], ns); + } + + return 0; +} + +int piranha_sensors_poll(struct sensors_poll_device_t *dev, + struct sensors_event_t* data, int count) +{ + struct piranha_sensors_device *device; + int i, j; + int c, n; + int rc; + +// LOGD("%s(%p, %p, %d)", __func__, dev, data, count); + + if (dev == NULL) + return -EINVAL; + + device = (struct piranha_sensors_device *) dev; + + if (device->handlers == NULL || device->handlers_count <= 0 || + device->poll_fds == NULL || device->poll_fds_count <= 0) + return -EINVAL; + + n = 0; + + for (i=0 ; i < device->poll_fds_count ; i++) { + if (!(device->poll_fds[i].revents & POLLIN)) + continue; + + for (j=0 ; j < device->handlers_count ; j++) { + if (device->handlers[j] == NULL || device->handlers[j]->poll_fd != device->poll_fds[i].fd || device->handlers[j]->get_data == NULL) + continue; + + rc = device->handlers[j]->get_data(device->handlers[j], &data[n]); + if (rc < 0) { + device->poll_fds[i].revents = 0; + } else { + n++; + count--; + } + } + } + + rc = poll(device->poll_fds, device->poll_fds_count, n > 0 ? 0 : -1); + if (rc < 0) + return -1; + + return n; +} + +/* + * Interface + */ + +int piranha_sensors_close(hw_device_t *device) +{ + struct piranha_sensors_device *piranha_sensors_device; + int i; + + LOGD("%s(%p)", __func__, device); + + if (device == NULL) + return -EINVAL; + + piranha_sensors_device = (struct piranha_sensors_device *) device; + + if (piranha_sensors_device->poll_fds != NULL) + free(piranha_sensors_device->poll_fds); + + for (i=0 ; i < piranha_sensors_device->handlers_count ; i++) { + if (piranha_sensors_device->handlers[i] == NULL || piranha_sensors_device->handlers[i]->deinit == NULL) + continue; + + piranha_sensors_device->handlers[i]->deinit(piranha_sensors_device->handlers[i]); + } + + free(device); + + return 0; +} + +int piranha_sensors_open(const struct hw_module_t* module, const char *id, + struct hw_device_t** device) +{ + struct piranha_sensors_device *piranha_sensors_device; + int p, i; + + LOGD("%s(%p, %s, %p)", __func__, module, id, device); + + if (module == NULL || device == NULL) + return -EINVAL; + + piranha_sensors_device = (struct piranha_sensors_device *) + calloc(1, sizeof(struct piranha_sensors_device)); + piranha_sensors_device->device.common.tag = HARDWARE_DEVICE_TAG; + piranha_sensors_device->device.common.version = 0; + piranha_sensors_device->device.common.module = (struct hw_module_t *) module; + piranha_sensors_device->device.common.close = piranha_sensors_close; + piranha_sensors_device->device.activate = piranha_sensors_activate; + piranha_sensors_device->device.setDelay = piranha_sensors_set_delay; + piranha_sensors_device->device.poll = piranha_sensors_poll; + piranha_sensors_device->handlers = piranha_sensors_handlers; + piranha_sensors_device->handlers_count = piranha_sensors_handlers_count; + piranha_sensors_device->poll_fds = (struct pollfd *) + calloc(1, piranha_sensors_handlers_count * sizeof(struct pollfd)); + + p = 0; + for (i=0 ; i < piranha_sensors_handlers_count ; i++) { + if (piranha_sensors_handlers[i] == NULL || piranha_sensors_handlers[i]->init == NULL) + continue; + + piranha_sensors_handlers[i]->init(piranha_sensors_handlers[i], piranha_sensors_device); + if (piranha_sensors_handlers[i]->poll_fd >= 0) { + piranha_sensors_device->poll_fds[p].fd = piranha_sensors_handlers[i]->poll_fd; + piranha_sensors_device->poll_fds[p].events = POLLIN; + p++; + } + } + + piranha_sensors_device->poll_fds_count = p; + + *device = &(piranha_sensors_device->device.common); + + return 0; +} + +int piranha_sensors_get_sensors_list(struct sensors_module_t* module, + const struct sensor_t **sensors_p) +{ + LOGD("%s(%p, %p)", __func__, module, sensors_p); + + if (sensors_p == NULL) + return -EINVAL; + + *sensors_p = piranha_sensors; + return piranha_sensors_count; +} + +struct hw_module_methods_t piranha_sensors_module_methods = { + .open = piranha_sensors_open, +}; + +struct sensors_module_t HAL_MODULE_INFO_SYM = { + .common = { + .tag = HARDWARE_MODULE_TAG, + .version_major = 1, + .version_minor = 0, + .id = SENSORS_HARDWARE_MODULE_ID, + .name = "Piranha Sensors", + .author = "Paul Kocialkowski", + .methods = &piranha_sensors_module_methods, + }, + .get_sensors_list = piranha_sensors_get_sensors_list, +}; -- cgit v1.1