2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libsigrok.h"
24 #include "libsigrok-internal.h"
27 #define SERIALCOMM "9600/8e1"
29 static const int hwopts[] = {
35 static const int hwcaps[] = {
36 SR_HWCAP_SOUNDLEVELMETER,
37 SR_HWCAP_LIMIT_SAMPLES,
42 static const char *probe_names[] = {
47 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
48 static struct sr_dev_driver *di = &tondaj_sl_814_driver_info;
50 /* Properly close and free all devices. */
51 static int clear_instances(void)
53 struct sr_dev_inst *sdi;
54 struct drv_context *drvc;
55 struct dev_context *devc;
58 if (!(drvc = di->priv))
61 for (l = drvc->instances; l; l = l->next) {
64 if (!(devc = sdi->priv))
66 sr_serial_dev_inst_free(devc->serial);
67 sr_dev_inst_free(sdi);
70 g_slist_free(drvc->instances);
71 drvc->instances = NULL;
76 static int hw_init(void)
78 struct drv_context *drvc;
80 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
81 sr_err("Driver context malloc failed.");
90 static GSList *hw_scan(GSList *options)
92 struct drv_context *drvc;
93 struct dev_context *devc;
94 struct sr_dev_inst *sdi;
96 struct sr_probe *probe;
98 const char *conn, *serialcomm;
102 drvc->instances = NULL;
104 conn = serialcomm = NULL;
105 for (l = options; l; l = l->next) {
106 if (!(opt = l->data)) {
107 sr_err("Invalid option data, skipping.");
110 switch (opt->hwopt) {
114 case SR_HWOPT_SERIALCOMM:
115 serialcomm = opt->value;
118 sr_err("Unknown option %d, skipping.", opt->hwopt);
123 sr_dbg("Couldn't determine connection options.");
127 serialcomm = SERIALCOMM;
129 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Tondaj",
131 sr_err("Failed to create device instance.");
135 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
136 sr_err("Device context malloc failed.");
140 if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm)))
143 if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
148 probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, probe_names[0]);
150 sr_err("Failed to create probe.");
153 sdi->probes = g_slist_append(sdi->probes, probe);
154 drvc->instances = g_slist_append(drvc->instances, sdi);
155 devices = g_slist_append(devices, sdi);
160 static GSList *hw_dev_list(void)
162 struct drv_context *drvc;
166 return drvc->instances;
169 static int hw_dev_open(struct sr_dev_inst *sdi)
171 struct dev_context *devc;
175 if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
178 sdi->status = SR_ST_ACTIVE;
183 static int hw_dev_close(struct sr_dev_inst *sdi)
185 struct dev_context *devc;
189 if (devc->serial && devc->serial->fd != -1) {
190 serial_close(devc->serial);
191 sdi->status = SR_ST_INACTIVE;
197 static int hw_cleanup(void)
204 static int hw_info_get(int info_id, const void **data,
205 const struct sr_dev_inst *sdi)
216 case SR_DI_NUM_PROBES:
217 *data = GINT_TO_POINTER(1);
219 case SR_DI_PROBE_NAMES:
223 sr_err("Unknown info_id: %d.", info_id);
230 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
233 struct dev_context *devc;
235 if (sdi->status != SR_ST_ACTIVE) {
236 sr_err("Device inactive, can't set config options.");
243 case SR_HWCAP_LIMIT_SAMPLES:
244 devc->limit_samples = *(const uint64_t *)value;
245 sr_dbg("Setting sample limit to %" PRIu64 ".",
246 devc->limit_samples);
249 sr_err("Unknown hardware capability: %d.", hwcap);
256 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
259 struct sr_datafeed_packet packet;
260 struct sr_datafeed_header header;
261 struct sr_datafeed_meta_analog meta;
262 struct dev_context *devc;
265 devc->cb_data = cb_data;
267 /* Send header packet to the session bus. */
268 sr_dbg("Sending SR_DF_HEADER.");
269 packet.type = SR_DF_HEADER;
270 packet.payload = (uint8_t *)&header;
271 header.feed_version = 1;
272 gettimeofday(&header.starttime, NULL);
273 sr_session_send(devc->cb_data, &packet);
275 /* Send metadata about the SR_DF_ANALOG packets to come. */
276 sr_dbg("Sending SR_DF_META_ANALOG.");
277 packet.type = SR_DF_META_ANALOG;
278 packet.payload = &meta;
280 sr_session_send(devc->cb_data, &packet);
282 /* Poll every 500ms, or whenever some data comes in. */
283 sr_source_add(devc->serial->fd, G_IO_IN, 500,
284 tondaj_sl_814_receive_data, (void *)sdi);
289 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
292 struct sr_datafeed_packet packet;
293 struct dev_context *devc;
297 if (sdi->status != SR_ST_ACTIVE) {
298 sr_err("Device inactive, can't stop acquisition.");
304 if ((ret = sr_source_remove(devc->serial->fd)) < 0) {
305 sr_err("Error removing source: %d.", ret);
309 if ((ret = hw_dev_close(sdi)) < 0) {
310 sr_err("Error closing device: %d.", ret);
314 /* Send end packet to the session bus. */
315 sr_dbg("Sending SR_DF_END.");
316 packet.type = SR_DF_END;
317 sr_session_send(cb_data, &packet);
322 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
323 .name = "tondaj-sl-814",
324 .longname = "Tondaj SL-814",
327 .cleanup = hw_cleanup,
329 .dev_list = hw_dev_list,
330 .dev_clear = clear_instances,
331 .dev_open = hw_dev_open,
332 .dev_close = hw_dev_close,
333 .info_get = hw_info_get,
334 .dev_config_set = hw_dev_config_set,
335 .dev_acquisition_start = hw_dev_acquisition_start,
336 .dev_acquisition_stop = hw_dev_acquisition_stop,