X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fcommon%2Fscpi_vxi.c;fp=hardware%2Fcommon%2Fscpi_vxi.c;h=0000000000000000000000000000000000000000;hb=155b680da482cea2381becb73c51cfb838bff31e;hp=271917b082dfedeaab67419d581e8806eecd9844;hpb=43cd4637285833706f8a404ca027bcf0ee75b9ae;p=libsigrok.git diff --git a/hardware/common/scpi_vxi.c b/hardware/common/scpi_vxi.c deleted file mode 100644 index 271917b0..00000000 --- a/hardware/common/scpi_vxi.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * This file is part of the libsigrok project. - * - * Copyright (C) 2014 Aurelien Jacobs - * - * Inspired by the VXI11 Ethernet Protocol for Linux: - * http://optics.eee.nottingham.ac.uk/vxi11/ - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#include -#include - -#include "vxi.h" -#include "libsigrok.h" -#include "libsigrok-internal.h" - -#define LOG_PREFIX "scpi_vxi" -#define VXI_DEFAULT_TIMEOUT 2000 /* in ms */ - -struct scpi_vxi { - char *address; - char *instrument; - CLIENT *client; - Device_Link link; - unsigned int max_send_size; - unsigned int read_complete; -}; - -static int scpi_vxi_dev_inst_new(void *priv, struct drv_context *drvc, - const char *resource, char **params, const char *serialcomm) -{ - struct scpi_vxi *vxi = priv; - - (void)drvc; - (void)resource; - (void)serialcomm; - - if (!params || !params[1]) { - sr_err("Invalid parameters."); - return SR_ERR; - } - - vxi->address = g_strdup(params[1]); - vxi->instrument = g_strdup(params[2] ? params[2] : "inst0"); - - return SR_OK; -} - -static int scpi_vxi_open(void *priv) -{ - struct scpi_vxi *vxi = priv; - Create_LinkParms link_parms; - Create_LinkResp *link_resp; - - vxi->client = clnt_create(vxi->address, DEVICE_CORE, DEVICE_CORE_VERSION, "tcp"); - if (vxi->client == NULL) { - sr_err("Client creation failed for %s", vxi->address); - return SR_ERR; - } - - /* Set link parameters */ - link_parms.clientId = (long) vxi->client; - link_parms.lockDevice = 0; - link_parms.lock_timeout = VXI_DEFAULT_TIMEOUT; - link_parms.device = "inst0"; - - if (!(link_resp = create_link_1(&link_parms, vxi->client))) { - sr_err("Link creation failed for %s", vxi->address); - return SR_ERR; - } - vxi->link = link_resp->lid; - vxi->max_send_size = link_resp->maxRecvSize; - - /* Set a default maxRecvSize for devices which do not specify it */ - if (vxi->max_send_size <= 0) - vxi->max_send_size = 4096; - - return SR_OK; -} - -static int scpi_vxi_source_add(struct sr_session *session, void *priv, - int events, int timeout, sr_receive_data_callback cb, void *cb_data) -{ - (void)priv; - - /* Hook up a dummy handler to receive data from the device. */ - return sr_session_source_add(session, -1, events, timeout, cb, cb_data); -} - -static int scpi_vxi_source_remove(struct sr_session *session, void *priv) -{ - (void)priv; - - return sr_session_source_remove(session, -1); -} - -/* Operation Flags */ -#define DF_WAITLOCK 0x01 /* wait if the operation is locked by another link */ -#define DF_END 0x08 /* an END indicator is sent with last byte of buffer */ -#define DF_TERM 0x80 /* a termination char is set during a read */ - -static int scpi_vxi_send(void *priv, const char *command) -{ - struct scpi_vxi *vxi = priv; - Device_WriteResp *write_resp; - Device_WriteParms write_parms; - char *terminated_command; - unsigned int len; - - terminated_command = g_strdup_printf("%s\r\n", command); - len = strlen(terminated_command); - - write_parms.lid = vxi->link; - write_parms.io_timeout = VXI_DEFAULT_TIMEOUT; - write_parms.lock_timeout = VXI_DEFAULT_TIMEOUT; - write_parms.flags = DF_END; - write_parms.data.data_len = MIN(len, vxi->max_send_size); - write_parms.data.data_val = terminated_command; - - if (!(write_resp = device_write_1(&write_parms, vxi->client)) - || write_resp->error) { - sr_err("Device write failed for %s with error %d", - vxi->address, write_resp->error); - return SR_ERR; - } - - g_free(terminated_command); - - if (write_resp->size < len) - sr_dbg("Only sent %d/%d bytes of SCPI command: '%s'.", - write_resp->size, len, command); - else - sr_spew("Successfully sent SCPI command: '%s'.", command); - - return SR_OK; -} - -static int scpi_vxi_read_begin(void *priv) -{ - struct scpi_vxi *vxi = priv; - - vxi->read_complete = 0; - - return SR_OK; -} - -/* Read Response Reason Flags */ -#define RRR_SIZE 0x01 /* requestSize bytes have been transferred */ -#define RRR_TERM 0x02 /* a termination char has been read */ -#define RRR_END 0x04 /* an END indicator has been read */ - -static int scpi_vxi_read_data(void *priv, char *buf, int maxlen) -{ - struct scpi_vxi *vxi = priv; - Device_ReadParms read_parms; - Device_ReadResp *read_resp; - - read_parms.lid = vxi->link; - read_parms.io_timeout = VXI_DEFAULT_TIMEOUT; - read_parms.lock_timeout = VXI_DEFAULT_TIMEOUT; - read_parms.flags = 0; - read_parms.termChar = 0; - read_parms.requestSize = maxlen; - - if (!(read_resp = device_read_1(&read_parms, vxi->client)) - || read_resp->error) { - sr_err("Device read failed for %s with error %d", - vxi->address, read_resp->error); - return SR_ERR; - } - - memcpy(buf, read_resp->data.data_val, read_resp->data.data_len); - vxi->read_complete = read_resp->reason & (RRR_SIZE | RRR_TERM | RRR_END); - return read_resp->data.data_len; /* actual number of bytes received */ -} - -static int scpi_vxi_read_complete(void *priv) -{ - struct scpi_vxi *vxi = priv; - - return vxi->read_complete; -} - -static int scpi_vxi_close(void *priv) -{ - struct scpi_vxi *vxi = priv; - Device_Error *dev_error; - - if (!vxi->client) - return SR_ERR; - - if (!(dev_error = destroy_link_1(&vxi->link, vxi->client))) { - sr_err("Link destruction failed for %s", vxi->address); - return SR_ERR; - } - - clnt_destroy(vxi->client); - vxi->client = NULL; - - return SR_OK; -} - -static void scpi_vxi_free(void *priv) -{ - struct scpi_vxi *vxi = priv; - - g_free(vxi->address); - g_free(vxi->instrument); -} - -SR_PRIV const struct sr_scpi_dev_inst scpi_vxi_dev = { - .name = "VXI", - .prefix = "vxi", - .priv_size = sizeof(struct scpi_vxi), - .dev_inst_new = scpi_vxi_dev_inst_new, - .open = scpi_vxi_open, - .source_add = scpi_vxi_source_add, - .source_remove = scpi_vxi_source_remove, - .send = scpi_vxi_send, - .read_begin = scpi_vxi_read_begin, - .read_data = scpi_vxi_read_data, - .read_complete = scpi_vxi_read_complete, - .close = scpi_vxi_close, - .free = scpi_vxi_free, -};