/**************************************************************************** * drivers/sensors/goldfish_sensor_uorb.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #define GOLDFISH_ACCELERATION 0 #define GOLDFISH_GYROSCOPE 1 #define GOLDFISH_MAGNETIC_FIELD 2 #define GOLDFISH_ORIENTATION 3 #define GOLDFISH_AMBIENT_TEMPERATURE 4 #define GOLDFISH_PROXIMITY 5 #define GOLDFISH_LIGHT 6 #define GOLDFISH_PRESSURE 7 #define GOLDFISH_RELATIVE_HUMIDITY 8 #define GOLDFISH_MAGNETIC_FIELD_UNCALIBRATED 9 #define GOLDFISH_GYROSCOPE_FIELD_UNCALIBRATED 10 #define GOLDFISH_HINGE_ANGLE0 11 #define GOLDFISH_HINGE_ANGLE1 12 #define GOLDFISH_HINGE_ANGLE2 13 #define GOLDFISH_HEART_RATE 14 #define GOLDFISH_RGBC_LIGHT 15 #define GOLDFISH_WRIST_TILT 16 #define GOLDFISH_ACCELERATION_UNCALIBRATED 17 #define GOLDFISH_LIST_SENSOR_CMD "list-sensors" /**************************************************************************** * Private Types ****************************************************************************/ struct goldfish_sensor_s { int64_t time_bias_ns; struct file pipe; struct sensor_lowerhalf_s lower_accel; struct sensor_lowerhalf_s lower_mag; struct sensor_lowerhalf_s lower_gyro; struct sensor_lowerhalf_s lower_accel_uncalibrated; struct sensor_lowerhalf_s lower_mag_uncalibrated; struct sensor_lowerhalf_s lower_gyro_uncalibrated; struct sensor_lowerhalf_s lower_prox; struct sensor_lowerhalf_s lower_light; struct sensor_lowerhalf_s lower_baro; struct sensor_lowerhalf_s lower_humi; struct sensor_lowerhalf_s lower_temp; struct sensor_lowerhalf_s lower_hrate; }; /**************************************************************************** * Private Function Prototypes ****************************************************************************/ static int goldfish_sensor_activate(FAR struct sensor_lowerhalf_s *lower, FAR struct file *filep, bool enabled); static int goldfish_sensor_thread(int argc, FAR char** argv); /**************************************************************************** * Private Data ****************************************************************************/ static const struct sensor_ops_s g_goldfish_sensor_ops = { .activate = goldfish_sensor_activate, }; FAR static const char *const g_goldfish_sensor_name[] = { "acceleration", "gyroscope", "magnetic-field", "orientation", "temperature", "proximity", "light", "pressure", "humidity", "magnetic-field-uncalibrated", "gyroscope-uncalibrated", "hinge-angle0", "hinge-angle1", "hinge-angle2", "heart-rate", "rgbc-light", "wrist-tilt", "acceleration-uncalibrated", }; /**************************************************************************** * Private Functions ****************************************************************************/ static inline int goldfish_sensor_read_pipe(FAR struct file *pipe, FAR void *buffer, size_t size) { FAR char *p = (FAR char *)buffer; while (size > 0) { ssize_t n = file_read(pipe, p, size); if (n < 0) { return n; } p += n; size -= n; } return 0; } static inline int goldfish_sensor_write_pipe(FAR struct file *pipe, FAR const void *buffer, size_t size) { FAR const char *p = (const char *)buffer; while (size > 0) { ssize_t n = file_write(pipe, p, size); if (n < 0) { return n; } p += n; size -= n; } return 0; } static inline int goldfish_sensor_send(FAR struct file *pipe, FAR const void *msg, size_t size) { char header[5]; int ret = 0; if (size == 0) { size = strlen(msg); } snprintf(header, sizeof(header), "%04zx", size); ret = goldfish_sensor_write_pipe(pipe, header, 4); if (ret < 0) { return ret; } return goldfish_sensor_write_pipe(pipe, msg, size); } static inline ssize_t goldfish_sensor_recv(FAR struct file *pipe, FAR void *msg, size_t maxsize) { char header[5]; size_t size; int ret; ret = goldfish_sensor_read_pipe(pipe, header, 4); if (ret < 0) { return ret; } header[4] = 0; if (sscanf(header, "%04zx", &size) != 1) { return -EINVAL; } if (size > maxsize) { return -E2BIG; } ret = goldfish_sensor_read_pipe(pipe, msg, size); if (ret < 0) { return ret; } return size; } static inline int goldfish_sensor_open_pipe(FAR struct file *filep, FAR const char *ns, FAR const char *pipe_name, int flags) { char buf[256]; int len; int ret; ret = file_open(filep, "/dev/goldfish_pipe", flags); if (ret < 0) { snerr("Could not open /dev/goldfish_pipe : %d", ret); return ret; } if (ns) { len = snprintf(buf, sizeof(buf), "pipe:%s:%s", ns, pipe_name); } else { len = snprintf(buf, sizeof(buf), "pipe:%s", pipe_name); } ret = goldfish_sensor_write_pipe(filep, buf, len + 1); if (ret < 0) { snerr("Could not connect to the '%s' service: %d", buf, ret); file_close(filep); } return ret; } static inline FAR const char *goldfish_sensor_get_name(int h) { return g_goldfish_sensor_name[h]; } static FAR const char * goldfish_sensor_match(FAR const char *s, FAR const char *p) { size_t l = strlen(p); return strncmp(s, p, l) ? NULL : s + l; } static int64_t goldfish_sensor_weigthed_average(int64_t a, int64_t aw, int64_t b, int64_t bw) { return (a * aw + b * bw) / (aw + bw); } static int goldfish_sensor_do_activate(FAR struct file *pipe, int handle, bool enabled) { char buffer[64]; int len; len = snprintf(buffer, sizeof(buffer), "set:%s:%d", goldfish_sensor_get_name(handle), enabled); return goldfish_sensor_send(pipe, buffer, len); } static void goldfish_sensor_parse_event(FAR struct goldfish_sensor_s *sensor) { FAR const char *value; char buf[256]; ssize_t len; uint64_t now_ns; len = goldfish_sensor_recv(&sensor->pipe, buf, sizeof(buf) - 1); if (len < 0) { snerr("goldfish_sensor_recv failed\n"); return; } now_ns = sensor_get_timestamp(); buf[len] = 0; if ((value = goldfish_sensor_match(buf, "acceleration:")) != NULL) { struct sensor_accel accel; if (sscanf(value, "%f:%f:%f", &accel.x, &accel.y, &accel.z) == 3) { accel.temperature = NAN; accel.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_accel.push_event(sensor->lower_accel.priv, &accel, sizeof(struct sensor_accel)); } } else if ((value = goldfish_sensor_match(buf, "gyroscope:")) != NULL) { struct sensor_gyro gyro; if (sscanf(value, "%f:%f:%f", &gyro.x, &gyro.y, &gyro.z) == 3) { gyro.temperature = NAN; gyro.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_gyro.push_event(sensor->lower_gyro.priv, &gyro, sizeof(struct sensor_gyro)); } } else if ((value = goldfish_sensor_match(buf, "magnetic:")) != NULL) { struct sensor_mag mag; if (sscanf(value, "%f:%f:%f", &mag.x, &mag.y, &mag.z) == 3) { mag.temperature = NAN; mag.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_mag.push_event(sensor->lower_mag.priv, &mag, sizeof(struct sensor_mag)); } } else if ((value = goldfish_sensor_match( buf, "gyroscope-uncalibrated:")) != NULL) { struct sensor_gyro gyro; if (sscanf(value, "%f:%f:%f", &gyro.x, &gyro.y, &gyro.z) == 3) { gyro.temperature = NAN; gyro.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_gyro_uncalibrated.push_event( sensor->lower_gyro_uncalibrated.priv, &gyro, sizeof(struct sensor_gyro)); } } else if ((value = goldfish_sensor_match( buf, "acceleration-uncalibrated:")) != NULL) { struct sensor_accel accel; if (sscanf(value, "%f:%f:%f", &accel.x, &accel.y, &accel.z) == 3) { accel.temperature = NAN; accel.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_accel_uncalibrated.push_event( sensor->lower_accel_uncalibrated.priv, &accel, sizeof(struct sensor_accel)); } } else if ((value = goldfish_sensor_match( buf, "magnetic-uncalibrated:")) != NULL) { struct sensor_mag mag; if (sscanf(value, "%f:%f:%f", &mag.x, &mag.y, &mag.z) == 3) { mag.temperature = NAN; mag.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_mag_uncalibrated.push_event( sensor->lower_mag_uncalibrated.priv, &mag, sizeof(struct sensor_mag)); } } else if ((value = goldfish_sensor_match(buf, "temperature:")) != NULL) { struct sensor_temp temp; if (sscanf(value, "%f", &temp.temperature) == 1) { temp.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_temp.push_event(sensor->lower_temp.priv, &temp, sizeof(struct sensor_temp)); } } else if ((value = goldfish_sensor_match(buf, "proximity:")) != NULL) { struct sensor_prox prox; if (sscanf(value, "%f", &prox.proximity) == 1) { prox.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_prox.push_event(sensor->lower_prox.priv, &prox, sizeof(struct sensor_prox)); } } else if ((value = goldfish_sensor_match(buf, "light:")) != NULL) { struct sensor_light light; if (sscanf(value, "%f", &light.light) == 1) { light.timestamp = now_ns + sensor->time_bias_ns; light.ir = NAN; sensor->lower_light.push_event(sensor->lower_light.priv, &light, sizeof(struct sensor_light)); } } else if ((value = goldfish_sensor_match(buf, "pressure:")) != NULL) { struct sensor_baro baro; if (sscanf(value, "%f", &baro.pressure) == 1) { baro.timestamp = now_ns + sensor->time_bias_ns; baro.temperature = NAN; sensor->lower_baro.push_event(sensor->lower_baro.priv, &baro, sizeof(struct sensor_baro)); } } else if ((value = goldfish_sensor_match(buf, "humidity:")) != NULL) { struct sensor_humi humi; if (sscanf(value, "%f", &humi.humidity) == 1) { humi.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_humi.push_event(sensor->lower_humi.priv, &humi, sizeof(struct sensor_humi)); } } else if ((value = goldfish_sensor_match(buf, "heart-rate:")) != NULL) { struct sensor_hrate hrate; if (sscanf(value, "%f", &hrate.bpm) == 1) { hrate.timestamp = now_ns + sensor->time_bias_ns; sensor->lower_hrate.push_event(sensor->lower_hrate.priv, &hrate, sizeof(struct sensor_hrate)); } } else if ((value = goldfish_sensor_match(buf, "guest-sync:")) != NULL) { int64_t guest_ms; if ((sscanf(value, "%" PRId64, &guest_ms) == 1) && (guest_ms >= 0)) { int64_t time_bias_ns = 1000 * guest_ms - now_ns; sensor->time_bias_ns = MIN(0, goldfish_sensor_weigthed_average(sensor->time_bias_ns, 3, time_bias_ns, 1)); } } else if ((value = goldfish_sensor_match(buf, "sync:")) != NULL) { } else { snerr("don't know how to parse '%s'\n", buf); } } static int goldfish_sensor_activate(FAR struct sensor_lowerhalf_s *lower, FAR struct file *filep, bool enabled) { FAR struct goldfish_sensor_s *priv; switch (lower->type) { case SENSOR_TYPE_ACCELEROMETER: if (lower->uncalibrated) { priv = container_of(lower, struct goldfish_sensor_s, lower_accel_uncalibrated); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_ACCELERATION_UNCALIBRATED, enabled); } else { priv = container_of(lower, struct goldfish_sensor_s, lower_accel); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_ACCELERATION, enabled); } case SENSOR_TYPE_MAGNETIC_FIELD: if (lower->uncalibrated) { priv = container_of(lower, struct goldfish_sensor_s, lower_mag_uncalibrated); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_MAGNETIC_FIELD_UNCALIBRATED, enabled); } else { priv = container_of(lower, struct goldfish_sensor_s, lower_mag); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_MAGNETIC_FIELD, enabled); } case SENSOR_TYPE_GYROSCOPE: if (lower->uncalibrated) { priv = container_of(lower, struct goldfish_sensor_s, lower_gyro_uncalibrated); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_GYROSCOPE_FIELD_UNCALIBRATED, enabled); } else { priv = container_of(lower, struct goldfish_sensor_s, lower_gyro); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_GYROSCOPE, enabled); } case SENSOR_TYPE_PROXIMITY: priv = container_of(lower, struct goldfish_sensor_s, lower_prox); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_PROXIMITY, enabled); case SENSOR_TYPE_LIGHT: priv = container_of(lower, struct goldfish_sensor_s, lower_light); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_LIGHT, enabled); case SENSOR_TYPE_BAROMETER: priv = container_of(lower, struct goldfish_sensor_s, lower_baro); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_PRESSURE, enabled); case SENSOR_TYPE_RELATIVE_HUMIDITY: priv = container_of(lower, struct goldfish_sensor_s, lower_humi); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_RELATIVE_HUMIDITY, enabled); case SENSOR_TYPE_AMBIENT_TEMPERATURE: priv = container_of(lower, struct goldfish_sensor_s, lower_temp); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_AMBIENT_TEMPERATURE, enabled); case SENSOR_TYPE_HEART_RATE: priv = container_of(lower, struct goldfish_sensor_s, lower_hrate); return goldfish_sensor_do_activate(&priv->pipe, GOLDFISH_HEART_RATE, enabled); default: return -EINVAL; } return OK; } static int goldfish_sensor_thread(int argc, FAR char** argv) { FAR struct goldfish_sensor_s *priv = (FAR struct goldfish_sensor_s *)((uintptr_t)strtoul(argv[1], NULL, 0)); while (true) { goldfish_sensor_parse_event(priv); } return OK; } /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: goldfish_sensor_init * * Description: * Goldfish Multi-Sensors driver entrypoint. * * Input Parameters: * devno - The user specifies which device of this type, from 0. * batch_number- The maximum number of batch. * * Returned Value: * Zero (OK) or positive on success; a negated errno value on failure. * ****************************************************************************/ int goldfish_sensor_init(int devno, uint32_t batch_number) { FAR struct goldfish_sensor_s *sensor; uint32_t sensors_mask; FAR char *argv[2]; char arg1[32]; char buffer[64]; int ret; int len; /* Alloc memory for sensor */ sensor = kmm_zalloc(sizeof(struct goldfish_sensor_s)); if (!sensor) { snerr("Memory cannot be allocated for goldfish_sensor\n"); return -ENOMEM; } ret = goldfish_sensor_open_pipe(&sensor->pipe, "qemud", "sensors", O_RDWR); if (ret < 0) { kmm_free(sensor); return ret; } len = snprintf(buffer, sizeof(buffer), "time:%" PRId64, sensor_get_timestamp()); ret = goldfish_sensor_send(&sensor->pipe, buffer, len); if (ret < 0) { snerr("goldfish_sensor_send failed\n"); return ret; } ret = goldfish_sensor_send(&sensor->pipe, GOLDFISH_LIST_SENSOR_CMD, strlen(GOLDFISH_LIST_SENSOR_CMD)); if (ret < 0) { snerr("goldfish_sensor_send failed\n"); return ret; } len = goldfish_sensor_recv(&sensor->pipe, buffer, sizeof(buffer) - 1); if (len < 0) { snerr("goldfish_sensor_recv failed\n"); return len; } buffer[len] = 0; if (sscanf(buffer, "%" SCNu32, &sensors_mask) != 1) { snerr("Can't parse qemud response\n"); return -EINVAL; } /* Create thread for sensor */ snprintf(arg1, 32, "%p", sensor); argv[0] = arg1; argv[1] = NULL; ret = kthread_create("goldfish_sensor_thread", SCHED_PRIORITY_DEFAULT, CONFIG_DEFAULT_TASK_STACKSIZE, goldfish_sensor_thread, argv); if (ret < 0) { file_close(&sensor->pipe); kmm_free(sensor); return ret; } /* Register sensor */ sensor->lower_accel.type = SENSOR_TYPE_ACCELEROMETER; sensor->lower_accel.ops = &g_goldfish_sensor_ops; sensor->lower_accel.nbuffer = batch_number; sensor->lower_mag.type = SENSOR_TYPE_MAGNETIC_FIELD; sensor->lower_mag.ops = &g_goldfish_sensor_ops; sensor->lower_mag.nbuffer = batch_number; sensor->lower_gyro.type = SENSOR_TYPE_GYROSCOPE; sensor->lower_gyro.ops = &g_goldfish_sensor_ops; sensor->lower_gyro.nbuffer = batch_number; sensor->lower_accel_uncalibrated.type = SENSOR_TYPE_ACCELEROMETER; sensor->lower_accel_uncalibrated.ops = &g_goldfish_sensor_ops; sensor->lower_accel_uncalibrated.nbuffer = batch_number; sensor->lower_accel_uncalibrated.uncalibrated = true; sensor->lower_mag_uncalibrated.type = SENSOR_TYPE_MAGNETIC_FIELD; sensor->lower_mag_uncalibrated.ops = &g_goldfish_sensor_ops; sensor->lower_mag_uncalibrated.nbuffer = batch_number; sensor->lower_mag_uncalibrated.uncalibrated = true; sensor->lower_gyro_uncalibrated.type = SENSOR_TYPE_GYROSCOPE; sensor->lower_gyro_uncalibrated.ops = &g_goldfish_sensor_ops; sensor->lower_gyro_uncalibrated.nbuffer = batch_number; sensor->lower_gyro_uncalibrated.uncalibrated = true; sensor->lower_prox.type = SENSOR_TYPE_PROXIMITY; sensor->lower_prox.ops = &g_goldfish_sensor_ops; sensor->lower_prox.nbuffer = batch_number; sensor->lower_light.type = SENSOR_TYPE_LIGHT; sensor->lower_light.ops = &g_goldfish_sensor_ops; sensor->lower_light.nbuffer = batch_number; sensor->lower_baro.type = SENSOR_TYPE_BAROMETER; sensor->lower_baro.ops = &g_goldfish_sensor_ops; sensor->lower_baro.nbuffer = batch_number; sensor->lower_humi.type = SENSOR_TYPE_RELATIVE_HUMIDITY; sensor->lower_humi.ops = &g_goldfish_sensor_ops; sensor->lower_humi.nbuffer = batch_number; sensor->lower_temp.type = SENSOR_TYPE_AMBIENT_TEMPERATURE; sensor->lower_temp.ops = &g_goldfish_sensor_ops; sensor->lower_temp.nbuffer = batch_number; sensor->lower_hrate.type = SENSOR_TYPE_HEART_RATE; sensor->lower_hrate.ops = &g_goldfish_sensor_ops; sensor->lower_hrate.nbuffer = batch_number; return sensor_register(&sensor->lower_accel, devno) | sensor_register(&sensor->lower_mag, devno) | sensor_register(&sensor->lower_gyro, devno) | sensor_register(&sensor->lower_accel_uncalibrated, devno) | sensor_register(&sensor->lower_mag_uncalibrated, devno) | sensor_register(&sensor->lower_gyro_uncalibrated, devno) | sensor_register(&sensor->lower_prox, devno) | sensor_register(&sensor->lower_light, devno) | sensor_register(&sensor->lower_baro, devno) | sensor_register(&sensor->lower_humi, devno) | sensor_register(&sensor->lower_temp, devno) | sensor_register(&sensor->lower_hrate, devno); }