/* Copyright (C) 2011, 2012 Matthias Vogelgesang (Karlsruhe Institute of Technology) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA */ #include #include #include #include #include #include "uca-camera.h" #include "uca-ufo-camera.h" #define PCILIB_SET_ERROR(err, err_type) \ if (err != 0) { \ g_set_error(error, UCA_UFO_CAMERA_ERROR, \ err_type, \ "Errno: %s", strerror(err)); \ return; \ } #define UCA_UFO_CAMERA_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UCA_TYPE_UFO_CAMERA, UcaUfoCameraPrivate)) G_DEFINE_TYPE(UcaUfoCamera, uca_ufo_camera, UCA_TYPE_CAMERA) static const guint SENSOR_WIDTH = 2048; static const guint SENSOR_HEIGHT = 1088; /** * UcaUfoCameraError: * @UCA_UFO_CAMERA_ERROR_INIT: Initializing pcilib failed * @UCA_UFO_CAMERA_ERROR_START_RECORDING: Starting failed * @UCA_UFO_CAMERA_ERROR_STOP_RECORDING: Stopping failed * @UCA_UFO_CAMERA_ERROR_TRIGGER: Triggering a frame failed * @UCA_UFO_CAMERA_ERROR_NEXT_EVENT: No event happened * @UCA_UFO_CAMERA_ERROR_NO_DATA: No data was transmitted * @UCA_UFO_CAMERA_ERROR_MAYBE_CORRUPTED: Data is potentially corrupted */ GQuark uca_ufo_camera_error_quark() { return g_quark_from_static_string("uca-ufo-camera-error-quark"); } enum { PROP_NAME = N_BASE_PROPERTIES, N_PROPERTIES }; static gint base_overrideables[] = { PROP_SENSOR_WIDTH, PROP_SENSOR_HEIGHT, PROP_SENSOR_BITDEPTH, PROP_EXPOSURE_TIME, PROP_ROI_X, PROP_ROI_Y, PROP_ROI_WIDTH, PROP_ROI_HEIGHT, PROP_ROI_WIDTH_MULTIPLIER, PROP_ROI_HEIGHT_MULTIPLIER, PROP_HAS_STREAMING, PROP_HAS_CAMRAM_RECORDING, 0, }; static GParamSpec *ufo_properties[N_PROPERTIES] = { NULL, }; struct _UcaUfoCameraPrivate { pcilib_t *handle; }; static void ignore_messages(const char *format, ...) { } static int event_callback(pcilib_event_id_t event_id, pcilib_event_info_t *info, void *user) { UcaCamera *camera = UCA_CAMERA(user); UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(camera); size_t error = 0; void *buffer = pcilib_get_data(priv->handle, event_id, PCILIB_EVENT_DATA, &error); if (buffer == NULL) { pcilib_trigger(priv->handle, PCILIB_EVENT0, 0, NULL); return PCILIB_STREAMING_CONTINUE; } camera->grab_func(buffer, camera->user_data); pcilib_return_data(priv->handle, event_id, PCILIB_EVENT_DATA, buffer); pcilib_trigger(priv->handle, PCILIB_EVENT0, 0, NULL); return PCILIB_STREAMING_CONTINUE; } UcaUfoCamera *uca_ufo_camera_new(GError **error) { pcilib_model_t model = PCILIB_MODEL_DETECT; pcilib_t *handle = pcilib_open("/dev/fpga0", model); if (handle == NULL) { g_set_error(error, UCA_UFO_CAMERA_ERROR, UCA_UFO_CAMERA_ERROR_INIT, "Initializing pcilib failed"); return NULL; } pcilib_set_error_handler(&ignore_messages, &ignore_messages); UcaUfoCamera *camera = g_object_new(UCA_TYPE_UFO_CAMERA, NULL); UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(camera); priv->handle = handle; return camera; } static void uca_ufo_camera_start_recording(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_UFO_CAMERA(camera)); UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(camera); int err = pcilib_start(priv->handle, PCILIB_EVENT_DATA, PCILIB_EVENT_FLAGS_DEFAULT); PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_START_RECORDING); gboolean transfer_async = FALSE; g_object_get(G_OBJECT(camera), "transfer-asynchronously", &transfer_async, NULL); if (transfer_async) { pcilib_trigger(priv->handle, PCILIB_EVENT0, 0, NULL); pcilib_stream(priv->handle, &event_callback, camera); } } static void uca_ufo_camera_stop_recording(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_UFO_CAMERA(camera)); UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(camera); int err = pcilib_stop(priv->handle, PCILIB_EVENT_FLAGS_DEFAULT); PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_START_RECORDING); } static void uca_ufo_camera_start_readout(UcaCamera *camera, GError **error) { g_return_if_fail(UCA_IS_UFO_CAMERA(camera)); g_set_error(error, UCA_CAMERA_ERROR, UCA_CAMERA_ERROR_NOT_IMPLEMENTED, "Ufo camera does not support recording to internal memory"); } static void uca_ufo_camera_grab(UcaCamera *camera, gpointer *data, GError **error) { g_return_if_fail(UCA_IS_UFO_CAMERA(camera)); UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(camera); const gsize size = SENSOR_WIDTH * SENSOR_HEIGHT * sizeof(guint16); pcilib_event_id_t event_id; pcilib_event_info_t event_info; size_t err = 0; err = pcilib_trigger(priv->handle, PCILIB_EVENT0, 0, NULL); PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_TRIGGER); err = pcilib_get_next_event(priv->handle, PCILIB_TIMEOUT_INFINITE, &event_id, sizeof(pcilib_event_info_t), &event_info); PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_NEXT_EVENT); if (*data == NULL) *data = g_malloc0(SENSOR_WIDTH * SENSOR_HEIGHT * sizeof(guint16)); gpointer src = pcilib_get_data(priv->handle, event_id, PCILIB_EVENT_DATA, &err); if (src == NULL) PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_NO_DATA); /* * Apparently, we checked that err equals total size in previous version. * This is problematic because errno is positive and size could be equal * even when an error condition is met, e.g. with a very small ROI. However, * we don't know if src will always be NULL when an error occured. */ /* assert(err == size); */ memcpy(*data, src, size); /* * Another problem here. What does this help us? At this point we have * already overwritten the original buffer but can only know here if the * data is corrupted. */ err = pcilib_return_data(priv->handle, event_id, PCILIB_EVENT_DATA, data); PCILIB_SET_ERROR(err, UCA_UFO_CAMERA_ERROR_MAYBE_CORRUPTED); } static void uca_ufo_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(object); switch (property_id) { case PROP_EXPOSURE_TIME: { pcilib_register_value_t reg_value = (pcilib_register_value_t) 2.67e6 * g_value_get_double(value); pcilib_write_register(priv->handle, NULL, "exp_time", reg_value); } break; case PROP_ROI_X: case PROP_ROI_Y: case PROP_ROI_WIDTH: case PROP_ROI_HEIGHT: g_debug("ROI feature not implemented yet"); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); return; } } static void uca_ufo_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(object); switch (property_id) { case PROP_SENSOR_WIDTH: g_value_set_uint(value, SENSOR_WIDTH); break; case PROP_SENSOR_HEIGHT: g_value_set_uint(value, SENSOR_HEIGHT); break; case PROP_SENSOR_BITDEPTH: g_value_set_uint(value, 10); break; case PROP_EXPOSURE_TIME: { const gdouble factor = 2.67e-6; pcilib_register_value_t time_steps; pcilib_read_register(priv->handle, NULL, "exp_time", &time_steps); g_value_set_double(value, factor * time_steps); } break; case PROP_HAS_STREAMING: g_value_set_boolean(value, TRUE); break; case PROP_HAS_CAMRAM_RECORDING: g_value_set_boolean(value, FALSE); break; case PROP_ROI_X: g_value_set_uint(value, 0); break; case PROP_ROI_Y: g_value_set_uint(value, 0); break; case PROP_ROI_WIDTH: g_value_set_uint(value, SENSOR_WIDTH); break; case PROP_ROI_HEIGHT: g_value_set_uint(value, SENSOR_HEIGHT); break; case PROP_ROI_WIDTH_MULTIPLIER: g_value_set_uint(value, 1); break; case PROP_ROI_HEIGHT_MULTIPLIER: g_value_set_uint(value, 1); break; case PROP_NAME: g_value_set_string(value, "Ufo Camera w/ CMOSIS CMV2000"); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); break; } } static void uca_ufo_camera_finalize(GObject *object) { UcaUfoCameraPrivate *priv = UCA_UFO_CAMERA_GET_PRIVATE(object); pcilib_close(priv->handle); G_OBJECT_CLASS(uca_ufo_camera_parent_class)->finalize(object); } static void uca_ufo_camera_class_init(UcaUfoCameraClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS(klass); gobject_class->set_property = uca_ufo_camera_set_property; gobject_class->get_property = uca_ufo_camera_get_property; gobject_class->finalize = uca_ufo_camera_finalize; UcaCameraClass *camera_class = UCA_CAMERA_CLASS(klass); camera_class->start_recording = uca_ufo_camera_start_recording; camera_class->stop_recording = uca_ufo_camera_stop_recording; camera_class->start_readout = uca_ufo_camera_start_readout; camera_class->grab = uca_ufo_camera_grab; for (guint i = 0; base_overrideables[i] != 0; i++) g_object_class_override_property(gobject_class, base_overrideables[i], uca_camera_props[base_overrideables[i]]); ufo_properties[PROP_NAME] = g_param_spec_string("name", "Name of the camera", "Name of the camera", "", G_PARAM_READABLE); for (guint id = N_BASE_PROPERTIES; id < N_PROPERTIES; id++) g_object_class_install_property(gobject_class, id, ufo_properties[id]); g_type_class_add_private(klass, sizeof(UcaUfoCameraPrivate)); } static void uca_ufo_camera_init(UcaUfoCamera *self) { self->priv = UCA_UFO_CAMERA_GET_PRIVATE(self); }