Inital commit
This commit is contained in:
24
CMakeLists.txt
Normal file
24
CMakeLists.txt
Normal file
@ -0,0 +1,24 @@
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cmake_minimum_required(VERSION 3.0)
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project(uvosled)
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set(SRC_FILES uvosled.c usbshm.c)
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set(LIBS -pthread -lusb-1.0 )
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add_library(${PROJECT_NAME} SHARED ${SRC_FILES})
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target_link_libraries( ${PROJECT_NAME} ${LIBS})
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add_definitions("-std=c17 -Wall -O2 -fno-strict-aliasing")
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set(CMAKE_INSTALL_PREFIX "/usr")
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install(TARGETS ${PROJECT_NAME} DESTINATION lib)
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install(FILES ./uvosled.h DESTINATION include)
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link_directories(${CMAKE_CURRENT_BINARY_DIR})
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set(SRC_FILES_TEST_APP main.c)
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set(LIBS_TEST -l${PROJECT_NAME})
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add_executable(${PROJECT_NAME}_test ${SRC_FILES_TEST_APP})
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add_dependencies(${PROJECT_NAME}_test ${PROJECT_NAME})
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target_link_libraries( ${PROJECT_NAME}_test ${LIBS_TEST})
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add_definitions("-std=c17 -Wall -O2 -fno-strict-aliasing")
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33
main.c
Normal file
33
main.c
Normal file
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#include <stdio.h>
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#include <unistd.h>
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#include "uvosled.h"
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int main(int argc, char* argv[])
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{
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struct uvosled led;
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if(uvosled_connect(&led))
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{
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printf("cant connect \n");
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return -1;
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}
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if(uvosled_poweron(&led))
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{
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printf("cant power on \n");
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return -2;
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}
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if(uvosled_set_current(&led, CHANNEL_A | CHANNEL_B , 0.5))
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{
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printf("cant set current \n");
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return -3;
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}
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sleep(30);
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if(uvosled_set_current(&led, CHANNEL_A | CHANNEL_B , 0))
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{
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printf("cant set current \n");
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return -3;
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}
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uvosled_poweroff(&led);
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uvosled_disconnect(&led);
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return 0;
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}
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239
usbshm.c
Normal file
239
usbshm.c
Normal file
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#include "usbshm.h"
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#include <stdio.h>
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#include <stdatomic.h>
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#include <stdbool.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libusb-1.0/libusb.h>
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#include <errno.h>
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#include <unistd.h>
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struct usbshm_priv
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{
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libusb_device_handle* handle;
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struct libusb_transfer* transfer;
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unsigned char* buffer;
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};
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static unsigned objectCounter = 0;
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static struct timeval timeout = {1, 0};
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static pthread_mutex_t *libusbDataMutex;
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static pthread_t libusbThread;
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static atomic_bool threadStop;
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static void usbshm_transferCallBack(struct libusb_transfer *transfer);
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void usbshm_distroy(struct usbshm* instance)
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{
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while(!usbshm_ready(instance))
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sleep(1);
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free(instance->priv->transfer);
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libusb_close(instance->priv->handle);
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free(instance->priv->buffer);
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free(instance->productName);
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free(instance->priv);
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if(--objectCounter == 0)
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{
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threadStop = true;
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pthread_join(libusbThread, NULL);
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libusb_exit(NULL);
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pthread_mutex_destroy(libusbDataMutex);
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}
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}
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static void* usbshm_libusbPoll(void* arg)
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{
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while(!threadStop)
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{
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libusb_handle_events_timeout_completed(NULL, &timeout, NULL);
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}
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return NULL;
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}
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bool usbshm_isOpen(struct usbshm* instance)
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{
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return instance->priv->handle != NULL;
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}
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int usbshm_init(struct usbshm* instance, void (*dataCallback)(uint8_t request, unsigned char* data, size_t length))
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{
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int ret=0;
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instance->priv = malloc(sizeof(*instance->priv));
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instance->priv->handle = NULL;
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instance->priv->transfer = NULL;
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instance->priv->buffer = NULL;
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instance->vendorID = 0;
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instance->productID = 0;
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instance->productName = NULL;
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instance->dataCallback = dataCallback;
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if(objectCounter == 0)
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{
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printf("Usb Init\n");
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ret = libusb_init(NULL) < 0 ? USBSHM_ERROR_ERR : 0;
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libusbDataMutex = malloc(sizeof(*libusbDataMutex));
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pthread_mutex_init(libusbDataMutex, NULL);
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//libusb_set_option(NULL, LIBUSB_OPTION_LOG_LEVEL, LIBUSB_LOG_LEVEL_DEBUG);
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pthread_create(&libusbThread, NULL, &usbshm_libusbPoll, NULL);
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}
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if(ret == 0) objectCounter++;
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return ret;
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}
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bool usbshm_ready(struct usbshm* instance)
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{
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return instance->priv->transfer == NULL;
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}
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int usbshm_open(struct usbshm* instance, int vendorID, int productID, const char* productName)
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{
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instance->priv->handle = NULL;
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pthread_mutex_lock(libusbDataMutex);
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printf("Listing Devices\n");
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libusb_device** list;
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int count = libusb_get_device_list(NULL, &list);
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int errorCode = 0;
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if( count > 0)
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{
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struct libusb_device_descriptor desc = {0};
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for(int i = 0; i < count; ++i)
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{
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libusb_get_device_descriptor(list[i], &desc);
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if(desc.idVendor == vendorID && desc.idProduct == productID)
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{
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errorCode = libusb_open(list[i], &instance->priv->handle) < 0 ? USBSHM_ERROR_ERR : 0;
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break;
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}
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}
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}
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else
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{
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printf("Can not list devices\n");
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pthread_mutex_unlock(libusbDataMutex);
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return USBSHM_ERROR_ERR;
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}
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if(usbshm_isOpen(instance))
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{
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instance->vendorID = vendorID;
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instance->productID = productID;
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if(productName)
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{
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instance->productName = malloc(strlen(productName)+1);
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strcpy(instance->productName, productName);
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}
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else
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{
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instance->productName = NULL;
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}
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libusb_set_auto_detach_kernel_driver(instance->priv->handle, true);
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}
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else
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{
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printf("Opening usb device failed\n");
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errorCode = USBSHM_ERROR_ERR;
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}
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libusb_free_device_list(list, count);
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pthread_mutex_unlock(libusbDataMutex);
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return errorCode;
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}
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bool usbshm_usbshm_isOpen(struct usbshm* instance)
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{
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return instance->priv->handle != NULL;
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}
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void usbshm_reset(struct usbshm* instance)
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{
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printf("Usb transfer failed with %u\n", instance->priv->transfer->status);
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libusb_reset_device(instance->priv->handle);
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}
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void usbshm_reopen(struct usbshm* instance)
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{
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libusb_close(instance->priv->handle);
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usbshm_open(instance, instance->vendorID, instance->productID, instance->productName);
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}
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int usbshm_writeControlTransfer(struct usbshm* instance, const uint8_t request,
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char* buffer, const uint8_t length,
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const uint16_t wValue, const uint16_t wIndex)
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{
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if(!usbshm_isOpen(instance))
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return USBSHM_ERROR_NOT_CONNECTED;
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if(length > 8)
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return USBSHM_ERROR_PARAM;
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if(instance->priv->transfer == NULL)
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{
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pthread_mutex_lock(libusbDataMutex);
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instance->priv->buffer = malloc(length+8);
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libusb_fill_control_setup(instance->priv->buffer,
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LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT,
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request, wValue, wIndex, length );
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for(uint8_t i = 0; i < length; ++i)
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instance->priv->buffer[i+8] = buffer[i];
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instance->priv->transfer = libusb_alloc_transfer(0);
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libusb_fill_control_transfer(instance->priv->transfer, instance->priv->handle, instance->priv->buffer,
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&usbshm_transferCallBack, instance, 100);
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int ret = libusb_submit_transfer(instance->priv->transfer);
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pthread_mutex_unlock(libusbDataMutex);
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if(ret < 0)
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{
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free(buffer);
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libusb_free_transfer(instance->priv->transfer);
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instance->priv->transfer = NULL;
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if(ret == LIBUSB_ERROR_NO_DEVICE)
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usbshm_reopen(instance);
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}
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return ret < 0 ? USBSHM_ERROR_ERR : 0;
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}
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else return USBSHM_ERROR_AGAIN;
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}
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int usbshm_readControlTransfer(struct usbshm* instance, const uint8_t request, const uint8_t length)
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{
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if(!usbshm_isOpen(instance))
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return USBSHM_ERROR_NOT_CONNECTED;
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if(length > 8)
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return USBSHM_ERROR_PARAM;
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if(instance->priv->transfer == NULL)
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{
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pthread_mutex_lock(libusbDataMutex);
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instance->priv->buffer = malloc(length+8);
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libusb_fill_control_setup(instance->priv->buffer, LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN, request, request,request,length);
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instance->priv->transfer = libusb_alloc_transfer(0);
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libusb_fill_control_transfer(instance->priv->transfer, instance->priv->handle, instance->priv->buffer, &usbshm_transferCallBack, instance, 100);
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int ret = libusb_submit_transfer(instance->priv->transfer);
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pthread_mutex_unlock(libusbDataMutex);
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if(ret < 0)
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{
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free(instance->priv->buffer);
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libusb_free_transfer(instance->priv->transfer);
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instance->priv->transfer = NULL;
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if(ret == LIBUSB_ERROR_NO_DEVICE)
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usbshm_reopen(instance);
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}
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return ret < 0 ? USBSHM_ERROR_ERR : 0;
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}
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else return USBSHM_ERROR_AGAIN;
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|
}
|
||||||
|
|
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static void usbshm_transferCallBack(struct libusb_transfer *transfer)
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{
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struct usbshm* context = (struct usbshm*)transfer->user_data;
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|
if(transfer->status != LIBUSB_TRANSFER_COMPLETED)
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|
{
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|
printf("Usb transfer failed with %d\n", transfer->status);
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|
}
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else if(transfer->type == LIBUSB_TRANSFER_TYPE_CONTROL)
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|
{
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|
if(context->dataCallback && transfer->length-8 >= transfer->actual_length)
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|
context->dataCallback(transfer->buffer[1], transfer->buffer+8, transfer->actual_length);
|
||||||
|
}
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|
free(context->priv->buffer);
|
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|
libusb_free_transfer(context->priv->transfer);
|
||||||
|
context->priv->transfer = NULL;
|
||||||
|
}
|
||||||
43
usbshm.h
Normal file
43
usbshm.h
Normal file
@ -0,0 +1,43 @@
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|
#include <libusb-1.0/libusb.h>
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|
#include <pthread.h>
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|
#include <stdatomic.h>
|
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|
#include <time.h>
|
||||||
|
#include <stdbool.h>
|
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|
|
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|
struct usbshm_priv;
|
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|
|
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|
enum {
|
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|
USBSHM_ERROR_AGAIN = -1,
|
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|
USBSHM_ERROR_PARAM = -2,
|
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|
USBSHM_ERROR_ERR = -3,
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|
USBSHM_ERROR_NOT_CONNECTED = -4,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct usbshm {
|
||||||
|
struct usbshm_priv* priv;
|
||||||
|
int vendorID;
|
||||||
|
int productID;
|
||||||
|
char* productName;
|
||||||
|
void (*dataCallback)(uint8_t request, unsigned char* data, size_t length);
|
||||||
|
};
|
||||||
|
|
||||||
|
void usbshm_distroy(struct usbshm* instance);
|
||||||
|
|
||||||
|
int usbshm_init(struct usbshm* instance, void (*dataCallback)(uint8_t request, unsigned char* data, size_t length));
|
||||||
|
|
||||||
|
bool usbshm_ready(struct usbshm* instance);
|
||||||
|
|
||||||
|
int usbshm_open(struct usbshm* instance, int vendorID, int productID, const char* productName);
|
||||||
|
|
||||||
|
bool usbshm_isOpen(struct usbshm* instance);
|
||||||
|
|
||||||
|
void usbshm_reset(struct usbshm* instance);
|
||||||
|
|
||||||
|
void usbshm_reopen(struct usbshm* instance);
|
||||||
|
|
||||||
|
int usbshm_writeControlTransfer(struct usbshm* instance, const uint8_t request,
|
||||||
|
char* buffer, const uint8_t length,
|
||||||
|
const uint16_t wValue, const uint16_t wIndex);
|
||||||
|
|
||||||
|
int usbshm_readControlTransfer(struct usbshm* instance, const uint8_t request, const uint8_t length);
|
||||||
|
|
||||||
106
uvosled.c
Normal file
106
uvosled.c
Normal file
@ -0,0 +1,106 @@
|
|||||||
|
#define _POSIX_C_SOURCE 199309L
|
||||||
|
#include "uvosled.h"
|
||||||
|
#include "usbshm.h"
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <time.h>
|
||||||
|
|
||||||
|
void usleep(uint64_t microseconds)
|
||||||
|
{
|
||||||
|
struct timespec ts;
|
||||||
|
ts.tv_sec = microseconds / 1000000;
|
||||||
|
ts.tv_nsec = (microseconds % 1000000) * 1000;
|
||||||
|
nanosleep(&ts, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_connect(struct uvosled* led)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
led->priv = malloc(sizeof(*led->priv));
|
||||||
|
if(!led->priv)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
ret = usbshm_init(led->priv, NULL);
|
||||||
|
if(ret)
|
||||||
|
return -2;
|
||||||
|
|
||||||
|
ret = usbshm_open(led->priv, 0xfe17, 0x06dc , NULL);
|
||||||
|
if(ret)
|
||||||
|
return -3;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_poweron(struct uvosled* led)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 0, NULL, 0, 0, 0)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_poweroff(struct uvosled* led)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 1, NULL, 0, 0, 0)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_set_current(struct uvosled* led, uint8_t channels, float current)
|
||||||
|
{
|
||||||
|
if(current < 0)
|
||||||
|
return -1;
|
||||||
|
else if(current > 1)
|
||||||
|
return -2;
|
||||||
|
uint8_t currentU = current * 255;
|
||||||
|
// TODO: implment endianess
|
||||||
|
uint16_t wValue;
|
||||||
|
// we compile with fno-strict-aliasing
|
||||||
|
uint8_t* wValChar = (uint8_t*)&wValue;
|
||||||
|
wValChar[0] = channels;
|
||||||
|
wValChar[1] = currentU;
|
||||||
|
int ret;
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 2, NULL, 0, wValue, 0)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_trigger(struct uvosled* led)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 1, NULL, 0, 0, 0)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int uvosled_capture(struct uvosled* led, int channels, float current, double time, double cameraOffset)
|
||||||
|
{
|
||||||
|
if(current < 0 || current > 1 || time > 1 || cameraOffset < -1 || cameraOffset > 1)
|
||||||
|
return USBSHM_ERROR_PARAM;
|
||||||
|
|
||||||
|
uint8_t currentU = current * 255;
|
||||||
|
uint16_t timeU = time * 1000;
|
||||||
|
int16_t cameraOffsetU = cameraOffset * 1000;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 5, NULL, 0, *((uint16_t*)&cameraOffsetU), 0)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
if(ret < 0)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
// TODO: implment endianess
|
||||||
|
uint16_t wValue;
|
||||||
|
// we compile with fno-strict-aliasing
|
||||||
|
uint8_t* wValChar = (uint8_t*)&wValue;
|
||||||
|
wValChar[0] = channels;
|
||||||
|
wValChar[1] = currentU;
|
||||||
|
while((ret = usbshm_writeControlTransfer(led->priv, 1, NULL, 0, wValue, timeU)) == USBSHM_ERROR_AGAIN)
|
||||||
|
usleep(1000000);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
void uvosled_disconnect(struct uvosled* led)
|
||||||
|
{
|
||||||
|
usbshm_distroy(led->priv);
|
||||||
|
free(led->priv);
|
||||||
|
led->priv = NULL;
|
||||||
|
}
|
||||||
41
uvosled.h
Normal file
41
uvosled.h
Normal file
@ -0,0 +1,41 @@
|
|||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define CHANNEL_A 1
|
||||||
|
#define CHANNEL_B (1 << 1)
|
||||||
|
#define CHANNEL_C (1 << 2)
|
||||||
|
#define CHANNEL_D (1 << 3)
|
||||||
|
|
||||||
|
struct uvosled {
|
||||||
|
struct usbshm* priv;
|
||||||
|
};
|
||||||
|
|
||||||
|
int uvosled_connect(struct uvosled* led);
|
||||||
|
|
||||||
|
// power on cameras
|
||||||
|
int uvosled_poweron(struct uvosled* led);
|
||||||
|
|
||||||
|
// power off cameras
|
||||||
|
int uvosled_poweroff(struct uvosled* led);
|
||||||
|
|
||||||
|
// channels is a mask of bits, you can set it like this: CHANNEL_A | CHANNEL_C to activate channels A and C
|
||||||
|
// current is in Ampere
|
||||||
|
int uvosled_set_current(struct uvosled* led, uint8_t channels, float current);
|
||||||
|
|
||||||
|
// causes the cameras to take an image
|
||||||
|
int uvosled_trigger(struct uvosled* led);
|
||||||
|
|
||||||
|
// leds are lit for time seconds and the camera is activated cameraOffset seconds after they are lit
|
||||||
|
// real time guarenteed by microcontroller
|
||||||
|
int uvosled_capture(struct uvosled* led, int channels, float current, double time, double cameraOffset);
|
||||||
|
|
||||||
|
void uvosled_disconnect(struct uvosled* led);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
Reference in New Issue
Block a user