Diff: libloragw/src/loragw_com.c

Revision:

0:102b50f941d0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libloragw/src/loragw_com.c	Wed Apr 11 14:38:42 2018 +0000
@@ -0,0 +1,233 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+  (C)2017 Semtech-Cycleo
+
+Description:
+  A communication bridge layer to abstract linux/windows OS or others.
+  The current project support only linux os
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+*/
+
+
+/* -------------------------------------------------------------------------- */
+/* --- DEPENDANCIES --------------------------------------------------------- */
+
+#include <stdint.h>             /* C99 types */
+#include <stdio.h>              /* printf fprintf */
+#include <stdlib.h>             /* malloc free */
+#include <unistd.h>             /* lseek, close */
+#include <fcntl.h>              /* open */
+#include <string.h>             /* memset */
+#include <errno.h>              /* Error number definitions */
+#include <termios.h>            /* POSIX terminal control definitions */
+#include <sys/ioctl.h>
+#include <pthread.h>
+#include <time.h>
+#include <sys/select.h>
+
+#include "loragw_aux.h"
+#include "loragw_reg.h"
+#include "loragw_com.h"
+#include "loragw_com_linux.h"
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE MACROS ------------------------------------------------------- */
+
+#if DEBUG_COM == 1
+#define DEBUG_MSG(str)                fprintf(stderr, str)
+#define DEBUG_PRINTF(fmt, args...)    fprintf(stderr,"%s:%d: "fmt, __FUNCTION__, __LINE__, args)
+#define CHECK_NULL(a)                if(a==NULL){fprintf(stderr,"%s:%d: ERROR: NULL POINTER AS ARGUMENT\n", __FUNCTION__, __LINE__);return LGW_COM_ERROR;}
+#else
+#define DEBUG_MSG(str)
+#define DEBUG_PRINTF(fmt, args...)
+#define CHECK_NULL(a)                if(a==NULL){return LGW_COM_ERROR;}
+#endif
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE SHARED VARIABLES (GLOBAL) ------------------------------------ */
+
+extern void *lgw_com_target; /*! generic pointer to the COM device */
+
+pthread_mutex_t mx_usbbridgesync = PTHREAD_MUTEX_INITIALIZER; /* control access to usbbridge sync offsets */
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE CONSTANTS ---------------------------------------------------- */
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE FUNCTIONS DEFINITION ----------------------------------------- */
+
+int lgw_com_send_cmd(lgw_com_cmd_t cmd, lgw_handle_t handle) {
+#ifdef _WIN32
+    return lgw_com_send_cmd_win(cmd, handle);
+#elif __linux__
+    return lgw_com_send_cmd_linux(cmd, handle);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_receive_ans(lgw_com_ans_t *ans, lgw_handle_t handle) {
+#ifdef _WIN32
+    return lgw_com_receive_ans_win(ans, handle);
+#elif __linux__
+    return lgw_com_receive_ans_linux(ans, handle);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* -------------------------------------------------------------------------- */
+/* --- PUBLIC FUNCTIONS DEFINITION ------------------------------------------ */
+
+int lgw_com_open(void **com_target_ptr, const char *com_path) {
+#ifdef _WIN32
+    return lgw_com_open_win(com_target_ptr);
+#elif __linux__
+    return lgw_com_open_linux(com_target_ptr, com_path);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_close(void *com_target) {
+#ifdef _WIN32
+    return lgw_com_close_win(com_target);
+#elif __linux__
+    return lgw_com_close_linux(com_target);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_w(void *com_target, uint8_t com_mux_mode, uint8_t com_mux_target, uint8_t address, uint8_t data) {
+#ifdef _WIN32
+    return lgw_com_w_win(com_target, com_mux_mode, com_mux_target, address, data);
+#elif __linux__
+    return lgw_com_w_linux(com_target, com_mux_mode, com_mux_target, address, data);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_r(void *com_target, uint8_t com_mux_mode, uint8_t com_mux_target, uint8_t address, uint8_t *data) {
+#ifdef _WIN32
+    return lgw_com_r_win(com_target, com_mux_mode, com_mux_target, address, data);
+#elif __linux__
+    return lgw_com_r_linux(com_target, com_mux_mode, com_mux_target, address, data);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_wb(void *com_target, uint8_t com_mux_mode, uint8_t com_mux_target, uint8_t address, uint8_t *data, uint16_t size) {
+#ifdef _WIN32
+    return lgw_com_wb_win(com_target, com_mux_mode, com_mux_target, address, data, size);
+#elif __linux__
+    return lgw_com_wb_linux(com_target, com_mux_mode, com_mux_target, address, data, size);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_rb(void *com_target, uint8_t com_mux_mode, uint8_t com_mux_target, uint8_t address, uint8_t *data, uint16_t size) {
+#ifdef _WIN32
+    return lgw_com_rb_win(com_target, com_mux_mode, com_mux_target, address, data, size);
+#elif __linux__
+    return lgw_com_rb_linux(com_target, com_mux_mode, com_mux_target, address, data, size);
+#elif __APPLE__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __unix__
+    DEBUG_PRINTF("System is not recognized.");
+#elif __posix__
+    DEBUG_PRINTF("System is not recognized.");
+#else
+    DEBUG_PRINTF("System is not recognized.");
+#endif
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int lgw_com_send_command(void *com_target, lgw_com_cmd_t cmd, lgw_com_ans_t *ans) {
+    lgw_handle_t handle;
+
+    CHECK_NULL(com_target);
+    CHECK_NULL(ans);
+
+    handle = LGW_GET_HANDLE(com_target);
+
+    pthread_mutex_lock(&mx_usbbridgesync);
+
+    if (lgw_com_send_cmd(cmd, handle) == LGW_COM_ERROR) {
+        pthread_mutex_unlock(&mx_usbbridgesync);
+        return LGW_COM_ERROR;
+    }
+    if (lgw_com_receive_ans(ans, handle) == LGW_COM_ERROR) {
+        pthread_mutex_unlock(&mx_usbbridgesync);
+        return LGW_COM_ERROR;
+    }
+
+    pthread_mutex_unlock(&mx_usbbridgesync);
+
+    return LGW_COM_SUCCESS;
+}
+
+/* --- EOF ------------------------------------------------------------------ */