2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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 3 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, see <http://www.gnu.org/licenses/>.
22 static const int32_t hwopts[] = {
27 static const int32_t hwcaps[] = {
29 SR_CONF_LIMIT_SAMPLES,
34 SR_PRIV struct sr_dev_driver brymen_bm857_driver_info;
35 static struct sr_dev_driver *di = &brymen_bm857_driver_info;
37 static int hw_init(struct sr_context *sr_ctx)
39 return std_hw_init(sr_ctx, di, LOG_PREFIX);
42 static void free_instance(void *inst)
44 struct sr_dev_inst *sdi;
45 struct sr_serial_dev_inst *serial;
51 sr_serial_dev_inst_free(serial);
52 sr_dev_inst_free(sdi);
55 /* Properly close and free all devices. */
56 static int clear_instances(void)
58 struct drv_context *drvc;
60 if (!(drvc = di->priv))
63 g_slist_free_full(drvc->instances, free_instance);
64 drvc->instances = NULL;
69 static GSList *brymen_scan(const char *conn, const char *serialcomm)
71 struct sr_dev_inst *sdi;
72 struct dev_context *devc;
73 struct drv_context *drvc;
74 struct sr_probe *probe;
75 struct sr_serial_dev_inst *serial;
81 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
84 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
87 sr_info("Probing port %s.", conn);
92 if ((ret = brymen_packet_request(serial)) < 0) {
93 sr_err("Unable to send command: %d.", ret);
98 ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length,
99 brymen_packet_is_valid, 1000, 9600);
103 sr_info("Found device on port %s.", conn);
105 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Brymen", "BM85x", "")))
108 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
109 sr_err("Device context malloc failed.");
113 sdi->inst_type = SR_INST_SERIAL;
119 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
122 sdi->probes = g_slist_append(sdi->probes, probe);
123 drvc->instances = g_slist_append(drvc->instances, sdi);
124 devices = g_slist_append(devices, sdi);
127 serial_close(serial);
132 static GSList *hw_scan(GSList *options)
134 struct drv_context *drvc;
135 struct sr_config *src;
137 const char *conn, *serialcomm;
141 drvc->instances = NULL;
143 conn = serialcomm = NULL;
144 for (l = options; l; l = l->next) {
148 conn = g_variant_get_string(src->data, NULL);
150 case SR_CONF_SERIALCOMM:
151 serialcomm = g_variant_get_string(src->data, NULL);
159 /* Use the provided comm specs. */
160 devices = brymen_scan(conn, serialcomm);
162 /* But 9600/8n1 should work all of the time. */
163 devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1");
169 static GSList *hw_dev_list(void)
171 return ((struct drv_context *)(di->priv))->instances;
174 static int hw_dev_open(struct sr_dev_inst *sdi)
176 struct sr_serial_dev_inst *serial;
179 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
182 sdi->status = SR_ST_ACTIVE;
187 static int hw_dev_close(struct sr_dev_inst *sdi)
189 struct sr_serial_dev_inst *serial;
192 if (serial && serial->fd != -1) {
193 serial_close(serial);
194 sdi->status = SR_ST_INACTIVE;
200 static int hw_cleanup(void)
207 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
209 struct dev_context *devc;
212 if (sdi->status != SR_ST_ACTIVE)
213 return SR_ERR_DEV_CLOSED;
215 if (!(devc = sdi->priv)) {
216 sr_err("sdi->priv was NULL.");
222 case SR_CONF_LIMIT_SAMPLES:
223 devc->limit_samples = g_variant_get_uint64(data);
225 case SR_CONF_LIMIT_MSEC:
226 devc->limit_msec = g_variant_get_uint64(data);
235 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
240 case SR_CONF_SCAN_OPTIONS:
241 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
242 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
244 case SR_CONF_DEVICE_OPTIONS:
245 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
246 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
255 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
258 struct dev_context *devc;
259 struct sr_serial_dev_inst *serial;
261 if (sdi->status != SR_ST_ACTIVE)
262 return SR_ERR_DEV_CLOSED;
264 if (!(devc = sdi->priv)) {
265 sr_err("sdi->priv was NULL.");
269 devc->cb_data = cb_data;
272 * Reset the number of samples to take. If we've already collected our
273 * quota, but we start a new session, and don't reset this, we'll just
274 * quit without acquiring any new samples.
276 devc->num_samples = 0;
277 devc->starttime = g_get_monotonic_time();
279 /* Send header packet to the session bus. */
280 std_session_send_df_header(cb_data, LOG_PREFIX);
282 /* Poll every 50ms, or whenever some data comes in. */
284 sr_source_add(serial->fd, G_IO_IN, 50,
285 brymen_dmm_receive_data, (void *)sdi);
290 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
292 return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
293 sdi->conn, LOG_PREFIX);
296 SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = {
297 .name = "brymen-bm857",
298 .longname = "Brymen BM857",
301 .cleanup = hw_cleanup,
303 .dev_list = hw_dev_list,
304 .dev_clear = clear_instances,
306 .config_set = config_set,
307 .config_list = config_list,
308 .dev_open = hw_dev_open,
309 .dev_close = hw_dev_close,
310 .dev_acquisition_start = hw_dev_acquisition_start,
311 .dev_acquisition_stop = hw_dev_acquisition_stop,