2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 poljar (Damir Jelić) <poljarinho@gmail.com>
5 * Copyright (C) 2013 Martin Ling <martin-sigrok@earth.li>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include <libsigrok/libsigrok.h>
26 #include "libsigrok-internal.h"
29 #define LOG_PREFIX "scpi_serial"
32 struct sr_serial_dev_inst *serial;
39 const char *serialcomm;
40 } scpi_serial_usb_ids[] = {
41 { 0x0403, 0xed72, "115200/8n1/flow=1" }, /* Hameg HO720 */
42 { 0x0403, 0xed73, "115200/8n1/flow=1" }, /* Hameg HO730 */
43 { 0x0aad, 0x0118, "115200/8n1" }, /* R&S HMO1002 */
46 static GSList *scpi_serial_scan(struct drv_context *drvc)
48 GSList *l, *r, *resources = NULL;
54 for (i = 0; i < ARRAY_SIZE(scpi_serial_usb_ids); i++) {
55 if (!(l = sr_serial_find_usb(scpi_serial_usb_ids[i].vendor_id,
56 scpi_serial_usb_ids[i].product_id)))
58 for (r = l; r; r = r->next) {
59 if (scpi_serial_usb_ids[i].serialcomm)
60 res = g_strdup_printf("%s:%s", (char *) r->data,
61 scpi_serial_usb_ids[i].serialcomm);
63 res = g_strdup(r->data);
64 resources = g_slist_append(resources, res);
66 g_slist_free_full(l, g_free);
72 static int scpi_serial_dev_inst_new(void *priv, struct drv_context *drvc,
73 const char *resource, char **params, const char *serialcomm)
75 struct scpi_serial *sscpi = priv;
80 sscpi->serial = sr_serial_dev_inst_new(resource, serialcomm);
85 static int scpi_serial_open(struct sr_scpi_dev_inst *scpi)
87 struct scpi_serial *sscpi = scpi->priv;
88 struct sr_serial_dev_inst *serial = sscpi->serial;
90 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
93 if (serial_flush(serial) != SR_OK)
96 sscpi->got_newline = FALSE;
101 static int scpi_serial_source_add(struct sr_session *session, void *priv,
102 int events, int timeout, sr_receive_data_callback cb, void *cb_data)
104 struct scpi_serial *sscpi = priv;
105 struct sr_serial_dev_inst *serial = sscpi->serial;
107 return serial_source_add(session, serial, events, timeout, cb, cb_data);
110 static int scpi_serial_source_remove(struct sr_session *session, void *priv)
112 struct scpi_serial *sscpi = priv;
113 struct sr_serial_dev_inst *serial = sscpi->serial;
115 return serial_source_remove(session, serial);
118 static int scpi_serial_send(void *priv, const char *command)
121 struct scpi_serial *sscpi = priv;
122 struct sr_serial_dev_inst *serial = sscpi->serial;
124 result = serial_write_blocking(serial, command, strlen(command), 0);
126 sr_err("Error while sending SCPI command: '%s'.", command);
130 sr_spew("Successfully sent SCPI command: '%s'.", command);
135 static int scpi_serial_read_begin(void *priv)
137 struct scpi_serial *sscpi = priv;
138 sscpi->got_newline = FALSE;
143 static int scpi_serial_read_data(void *priv, char *buf, int maxlen)
145 struct scpi_serial *sscpi = priv;
148 /* Try to read new data into the buffer. */
149 ret = serial_read_nonblocking(sscpi->serial, buf, maxlen);
155 sr_spew("Read %d bytes into buffer.", ret);
157 if (buf[ret - 1] == '\n') {
158 sscpi->got_newline = TRUE;
159 sr_spew("Received terminator");
161 sscpi->got_newline = FALSE;
168 static int scpi_serial_read_complete(void *priv)
170 struct scpi_serial *sscpi = priv;
172 return sscpi->got_newline;
175 static int scpi_serial_close(struct sr_scpi_dev_inst *scpi)
177 struct scpi_serial *sscpi = scpi->priv;
179 return serial_close(sscpi->serial);
182 static void scpi_serial_free(void *priv)
184 struct scpi_serial *sscpi = priv;
186 sr_serial_dev_inst_free(sscpi->serial);
189 SR_PRIV const struct sr_scpi_dev_inst scpi_serial_dev = {
192 .priv_size = sizeof(struct scpi_serial),
193 .scan = scpi_serial_scan,
194 .dev_inst_new = scpi_serial_dev_inst_new,
195 .open = scpi_serial_open,
196 .source_add = scpi_serial_source_add,
197 .source_remove = scpi_serial_source_remove,
198 .send = scpi_serial_send,
199 .read_begin = scpi_serial_read_begin,
200 .read_data = scpi_serial_read_data,
201 .read_complete = scpi_serial_read_complete,
202 .close = scpi_serial_close,
203 .free = scpi_serial_free,