| | |
| | | /*- |
| | | * Copyright (c) 2012-2013 Jan Breuer, |
| | | * BSD 2-Clause License |
| | | * |
| | | * All Rights Reserved |
| | | * |
| | | * Copyright (c) 2012-2018, Jan Breuer |
| | | * All rights reserved. |
| | | * |
| | | * Redistribution and use in source and binary forms, with or without |
| | | * modification, are permitted provided that the following conditions are |
| | | * met: |
| | | * 1. Redistributions of source code must retain the above copyright notice, |
| | | * this list of conditions and the following disclaimer. |
| | | * 2. Redistributions in binary form must reproduce the above copyright |
| | | * notice, this list of conditions and the following disclaimer in the |
| | | * documentation and/or other materials provided with the distribution. |
| | | * |
| | | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
| | | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| | | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| | | * DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| | | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| | | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| | | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| | | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| | | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| | | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | | * modification, are permitted provided that the following conditions are met: |
| | | * |
| | | * * Redistributions of source code must retain the above copyright notice, this |
| | | * list of conditions and the following disclaimer. |
| | | * |
| | | * * Redistributions in binary form must reproduce the above copyright notice, |
| | | * this list of conditions and the following disclaimer in the documentation |
| | | * and/or other materials provided with the distribution. |
| | | * |
| | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| | | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| | | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| | | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| | | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| | | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| | | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | | */ |
| | | |
| | | /** |
| | | * @file main.c |
| | | * @date Thu Nov 15 10:58:45 UTC 2012 |
| | | * |
| | | * @brief SCPI parser test |
| | | * |
| | | * |
| | | * |
| | | * @brief TCP/IP SCPI Server |
| | | * |
| | | * |
| | | */ |
| | | |
| | | #include <stdio.h> |
| | | #include <stdlib.h> |
| | | #include <string.h> |
| | | |
| | | #include <netinet/in.h> |
| | | #include <sys/select.h> |
| | | #include <sys/socket.h> |
| | | #include <sys/ioctl.h> |
| | | #include <errno.h> |
| | | #include <arpa/inet.h> |
| | | #include <unistd.h> |
| | | #include <netinet/tcp.h> |
| | | |
| | | #include "scpi/scpi.h" |
| | | #include "../common/scpi-def.h" |
| | | |
| | | size_t SCPI_Write(scpi_t * context, const char * data, size_t len) { |
| | | (void) context; |
| | | return fwrite(data, 1, len, stdout); |
| | | if (context->user_context != NULL) { |
| | | int fd = *(int *) (context->user_context); |
| | | |
| | | int state = 1; |
| | | setsockopt(fd, IPPROTO_TCP, TCP_CORK, &state, sizeof(state)); |
| | | |
| | | return write(fd, data, len); |
| | | } |
| | | return 0; |
| | | } |
| | | |
| | | scpi_result_t SCPI_Flush(scpi_t * context) { |
| | | if (context->user_context != NULL) { |
| | | int fd = *(int *) (context->user_context); |
| | | |
| | | int state = 0; |
| | | setsockopt(fd, IPPROTO_TCP, TCP_CORK, &state, sizeof(state)); |
| | | } |
| | | |
| | | return SCPI_RES_OK; |
| | | } |
| | | |
| | | int SCPI_Error(scpi_t * context, int_fast16_t err) { |
| | | (void) context; |
| | | |
| | | fprintf(stderr, "**ERROR: %d, \"%s\"\r\n", (int32_t) err, SCPI_ErrorTranslate(err)); |
| | | /* BEEP */ |
| | | fprintf(stderr, "**ERROR: %d, \"%s\"\r\n", (int16_t) err, SCPI_ErrorTranslate(err)); |
| | | return 0; |
| | | } |
| | | |
| | | scpi_result_t SCPI_Srq(scpi_t * context) { |
| | | scpi_reg_val_t stb = SCPI_RegGet(context, SCPI_REG_STB); |
| | | fprintf(stderr, "**SRQ: 0x%X (%d)\r\n", stb, stb); |
| | | return SCPI_RES_OK; |
| | | } |
| | | scpi_result_t SCPI_Control(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val) { |
| | | (void) context; |
| | | |
| | | scpi_result_t SCPI_Test(scpi_t * context) { |
| | | fprintf(stderr, "**Test\r\n"); |
| | | if (SCPI_CTRL_SRQ == ctrl) { |
| | | fprintf(stderr, "**SRQ: 0x%X (%d)\r\n", val, val); |
| | | } else { |
| | | fprintf(stderr, "**CTRL %02x: 0x%X (%d)\r\n", ctrl, val, val); |
| | | } |
| | | return SCPI_RES_OK; |
| | | } |
| | | |
| | | scpi_result_t SCPI_Reset(scpi_t * context) { |
| | | (void) context; |
| | | |
| | | fprintf(stderr, "**Reset\r\n"); |
| | | return SCPI_RES_OK; |
| | | } |
| | | |
| | | scpi_result_t SCPI_SystemCommTcpipControlQ(scpi_t * context) { |
| | | (void) context; |
| | | |
| | | return SCPI_RES_ERR; |
| | | } |
| | | |
| | | static int createServer(int port) { |
| | | int fd; |
| | | int rc; |
| | | int on = 1; |
| | | struct sockaddr_in servaddr; |
| | | |
| | | /* Configure TCP Server */ |
| | | memset(&servaddr, 0, sizeof (servaddr)); |
| | | servaddr.sin_family = AF_INET; |
| | | servaddr.sin_addr.s_addr = htonl(INADDR_ANY); |
| | | servaddr.sin_port = htons(port); |
| | | |
| | | /* Create socket */ |
| | | fd = socket(AF_INET, SOCK_STREAM, 0); |
| | | if (fd < 0) { |
| | | perror("socket() failed"); |
| | | exit(-1); |
| | | } |
| | | |
| | | /* Set address reuse enable */ |
| | | rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof (on)); |
| | | if (rc < 0) { |
| | | perror("setsockopt() failed"); |
| | | close(fd); |
| | | exit(-1); |
| | | } |
| | | |
| | | /* Set non blocking */ |
| | | rc = ioctl(fd, FIONBIO, (char *) &on); |
| | | if (rc < 0) { |
| | | perror("ioctl() failed"); |
| | | close(fd); |
| | | exit(-1); |
| | | } |
| | | |
| | | /* Bind to socket */ |
| | | rc = bind(fd, (struct sockaddr *) &servaddr, sizeof (servaddr)); |
| | | if (rc < 0) { |
| | | perror("bind() failed"); |
| | | close(fd); |
| | | exit(-1); |
| | | } |
| | | |
| | | /* Listen on socket */ |
| | | listen(fd, 1); |
| | | if (rc < 0) { |
| | | perror("listen() failed"); |
| | | close(fd); |
| | | exit(-1); |
| | | } |
| | | |
| | | return fd; |
| | | } |
| | | |
| | | static int waitServer(int fd) { |
| | | fd_set fds; |
| | | struct timeval timeout; |
| | | int rc; |
| | | int max_fd; |
| | | |
| | | FD_ZERO(&fds); |
| | | max_fd = fd; |
| | | FD_SET(fd, &fds); |
| | | |
| | | timeout.tv_sec = 5; |
| | | timeout.tv_usec = 0; |
| | | |
| | | rc = select(max_fd + 1, &fds, NULL, NULL, &timeout); |
| | | |
| | | return rc; |
| | | } |
| | | |
| | | /* |
| | | * |
| | | * |
| | | */ |
| | | int main(int argc, char** argv) { |
| | | (void) argc; |
| | | (void) argv; |
| | | int result; |
| | | int rc; |
| | | |
| | | SCPI_Init(&scpi_context); |
| | | int listenfd; |
| | | char smbuffer[10]; |
| | | |
| | | #define TEST_SCPI_INPUT(cmd) result = SCPI_Input(&scpi_context, cmd, strlen(cmd)) |
| | | /* user_context will be pointer to socket */ |
| | | scpi_context.user_context = NULL; |
| | | |
| | | TEST_SCPI_INPUT("*CLS\r\n"); |
| | | TEST_SCPI_INPUT("*RST\r\n"); |
| | | TEST_SCPI_INPUT("MEAS:volt:DC? 12,50;*OPC\r\n"); |
| | | TEST_SCPI_INPUT("*IDN?\r\n"); |
| | | TEST_SCPI_INPUT("SYST:VERS?"); |
| | | TEST_SCPI_INPUT("\r\n*ID"); |
| | | TEST_SCPI_INPUT("N?"); |
| | | TEST_SCPI_INPUT(""); // emulate command timeout |
| | | SCPI_Init(&scpi_context, |
| | | scpi_commands, |
| | | &scpi_interface, |
| | | scpi_units_def, |
| | | SCPI_IDN1, SCPI_IDN2, SCPI_IDN3, SCPI_IDN4, |
| | | scpi_input_buffer, SCPI_INPUT_BUFFER_LENGTH, |
| | | scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE); |
| | | |
| | | TEST_SCPI_INPUT("*ESE\r\n"); // cause error -109, missing parameter |
| | | TEST_SCPI_INPUT("*ESE 0x20\r\n"); |
| | | listenfd = createServer(5025); |
| | | |
| | | TEST_SCPI_INPUT("*SRE 0xFF\r\n"); |
| | | |
| | | TEST_SCPI_INPUT("IDN?\r\n"); // cause error -113, undefined header |
| | | while (1) { |
| | | int clifd, flag = 1; |
| | | struct sockaddr_in cliaddr; |
| | | socklen_t clilen; |
| | | |
| | | TEST_SCPI_INPUT("SYST:ERR?\r\n"); |
| | | TEST_SCPI_INPUT("SYST:ERR?\r\n"); |
| | | TEST_SCPI_INPUT("*STB?\r\n"); |
| | | TEST_SCPI_INPUT("*ESR?\r\n"); |
| | | TEST_SCPI_INPUT("*STB?\r\n"); |
| | | clilen = sizeof (cliaddr); |
| | | clifd = accept(listenfd, (struct sockaddr *) &cliaddr, &clilen); |
| | | |
| | | TEST_SCPI_INPUT("meas:volt:dc? 0.01 V, Default\r\n"); |
| | | TEST_SCPI_INPUT("meas:volt:dc?\r\n"); |
| | | TEST_SCPI_INPUT("meas:volt:dc? def, 0.00001\r\n"); |
| | | TEST_SCPI_INPUT("meas:volt:dc? 0.00001\r\n"); |
| | | if (clifd < 0) continue; |
| | | |
| | | setsockopt(clifd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int)); |
| | | |
| | | //printf("%.*s %s\r\n", 3, "asdadasdasdasdas", "b"); |
| | | // interactive demo |
| | | //char smbuffer[10]; |
| | | //while (1) { |
| | | // fgets(smbuffer, 10, stdin); |
| | | // SCPI_Input(&scpi_context, smbuffer, strlen(smbuffer)); |
| | | //} |
| | | printf("Connection established %s\r\n", inet_ntoa(cliaddr.sin_addr)); |
| | | |
| | | scpi_context.user_context = &clifd; |
| | | |
| | | while (1) { |
| | | rc = waitServer(clifd); |
| | | if (rc < 0) { /* failed */ |
| | | perror(" recv() failed"); |
| | | break; |
| | | } |
| | | if (rc == 0) { /* timeout */ |
| | | SCPI_Input(&scpi_context, NULL, 0); |
| | | } |
| | | if (rc > 0) { /* something to read */ |
| | | rc = recv(clifd, smbuffer, sizeof (smbuffer), 0); |
| | | if (rc < 0) { |
| | | if (errno != EWOULDBLOCK) { |
| | | perror(" recv() failed"); |
| | | break; |
| | | } |
| | | } else if (rc == 0) { |
| | | printf("Connection closed\r\n"); |
| | | break; |
| | | } else { |
| | | SCPI_Input(&scpi_context, smbuffer, rc); |
| | | } |
| | | } |
| | | } |
| | | |
| | | close(clifd); |
| | | } |
| | | |
| | | return (EXIT_SUCCESS); |
| | | } |