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 init(struct sr_context *sr_ctx)
39 return std_init(sr_ctx, di, LOG_PREFIX);
42 static int dev_clear(void)
44 return std_dev_clear(di, NULL);
47 static GSList *brymen_scan(const char *conn, const char *serialcomm)
49 struct sr_dev_inst *sdi;
50 struct dev_context *devc;
51 struct drv_context *drvc;
52 struct sr_probe *probe;
53 struct sr_serial_dev_inst *serial;
59 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
62 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
65 sr_info("Probing port %s.", conn);
70 if ((ret = brymen_packet_request(serial)) < 0) {
71 sr_err("Unable to send command: %d.", ret);
76 ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length,
77 brymen_packet_is_valid, 1000, 9600);
81 sr_info("Found device on port %s.", conn);
83 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Brymen", "BM85x", "")))
86 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
87 sr_err("Device context malloc failed.");
91 sdi->inst_type = SR_INST_SERIAL;
97 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
100 sdi->probes = g_slist_append(sdi->probes, probe);
101 drvc->instances = g_slist_append(drvc->instances, sdi);
102 devices = g_slist_append(devices, sdi);
105 serial_close(serial);
110 static GSList *scan(GSList *options)
112 struct drv_context *drvc;
113 struct sr_config *src;
115 const char *conn, *serialcomm;
119 drvc->instances = NULL;
121 conn = serialcomm = NULL;
122 for (l = options; l; l = l->next) {
126 conn = g_variant_get_string(src->data, NULL);
128 case SR_CONF_SERIALCOMM:
129 serialcomm = g_variant_get_string(src->data, NULL);
137 /* Use the provided comm specs. */
138 devices = brymen_scan(conn, serialcomm);
140 /* But 9600/8n1 should work all of the time. */
141 devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1");
147 static GSList *dev_list(void)
149 return ((struct drv_context *)(di->priv))->instances;
152 static int dev_open(struct sr_dev_inst *sdi)
154 struct sr_serial_dev_inst *serial;
157 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
160 sdi->status = SR_ST_ACTIVE;
165 static int dev_close(struct sr_dev_inst *sdi)
167 struct sr_serial_dev_inst *serial;
170 if (serial && serial->fd != -1) {
171 serial_close(serial);
172 sdi->status = SR_ST_INACTIVE;
178 static int cleanup(void)
183 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
184 const struct sr_probe_group *probe_group)
186 struct dev_context *devc;
191 if (sdi->status != SR_ST_ACTIVE)
192 return SR_ERR_DEV_CLOSED;
194 if (!(devc = sdi->priv)) {
195 sr_err("sdi->priv was NULL.");
201 case SR_CONF_LIMIT_SAMPLES:
202 devc->limit_samples = g_variant_get_uint64(data);
204 case SR_CONF_LIMIT_MSEC:
205 devc->limit_msec = g_variant_get_uint64(data);
214 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
215 const struct sr_probe_group *probe_group)
221 case SR_CONF_SCAN_OPTIONS:
222 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
223 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
225 case SR_CONF_DEVICE_OPTIONS:
226 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
227 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
236 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
238 struct dev_context *devc;
239 struct sr_serial_dev_inst *serial;
241 if (sdi->status != SR_ST_ACTIVE)
242 return SR_ERR_DEV_CLOSED;
244 if (!(devc = sdi->priv)) {
245 sr_err("sdi->priv was NULL.");
249 devc->cb_data = cb_data;
252 * Reset the number of samples to take. If we've already collected our
253 * quota, but we start a new session, and don't reset this, we'll just
254 * quit without acquiring any new samples.
256 devc->num_samples = 0;
257 devc->starttime = g_get_monotonic_time();
259 /* Send header packet to the session bus. */
260 std_session_send_df_header(cb_data, LOG_PREFIX);
262 /* Poll every 50ms, or whenever some data comes in. */
264 serial_source_add(serial, G_IO_IN, 50,
265 brymen_dmm_receive_data, (void *)sdi);
270 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
272 return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
273 sdi->conn, LOG_PREFIX);
276 SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = {
277 .name = "brymen-bm857",
278 .longname = "Brymen BM857",
283 .dev_list = dev_list,
284 .dev_clear = dev_clear,
286 .config_set = config_set,
287 .config_list = config_list,
288 .dev_open = dev_open,
289 .dev_close = dev_close,
290 .dev_acquisition_start = dev_acquisition_start,
291 .dev_acquisition_stop = dev_acquisition_stop,