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 uint32_t scanopts[] = {
27 static const uint32_t devopts[] = {
30 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
31 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
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 GSList *brymen_scan(const char *conn, const char *serialcomm)
44 struct sr_dev_inst *sdi;
45 struct dev_context *devc;
46 struct drv_context *drvc;
47 struct sr_channel *ch;
48 struct sr_serial_dev_inst *serial;
54 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
57 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
60 sr_info("Probing port %s.", conn);
65 if ((ret = brymen_packet_request(serial)) < 0) {
66 sr_err("Unable to send command: %d.", ret);
71 ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length,
72 brymen_packet_is_valid, 1000, 9600);
76 sr_info("Found device on port %s.", conn);
78 if (!(sdi = sr_dev_inst_new(SR_ST_INACTIVE, "Brymen", "BM85x", NULL)))
81 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
82 sr_err("Device context malloc failed.");
86 sdi->inst_type = SR_INST_SERIAL;
92 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1")))
95 sdi->channels = g_slist_append(sdi->channels, ch);
96 drvc->instances = g_slist_append(drvc->instances, sdi);
97 devices = g_slist_append(devices, sdi);
100 serial_close(serial);
105 static GSList *scan(GSList *options)
107 struct drv_context *drvc;
108 struct sr_config *src;
110 const char *conn, *serialcomm;
114 drvc->instances = NULL;
116 conn = serialcomm = NULL;
117 for (l = options; l; l = l->next) {
121 conn = g_variant_get_string(src->data, NULL);
123 case SR_CONF_SERIALCOMM:
124 serialcomm = g_variant_get_string(src->data, NULL);
132 /* Use the provided comm specs. */
133 devices = brymen_scan(conn, serialcomm);
135 /* But 9600/8n1 should work all of the time. */
136 devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1");
142 static GSList *dev_list(void)
144 return ((struct drv_context *)(di->priv))->instances;
147 static int cleanup(void)
149 return std_dev_clear(di, NULL);
152 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
153 const struct sr_channel_group *cg)
155 struct dev_context *devc;
160 if (sdi->status != SR_ST_ACTIVE)
161 return SR_ERR_DEV_CLOSED;
163 if (!(devc = sdi->priv)) {
164 sr_err("sdi->priv was NULL.");
170 case SR_CONF_LIMIT_SAMPLES:
171 devc->limit_samples = g_variant_get_uint64(data);
173 case SR_CONF_LIMIT_MSEC:
174 devc->limit_msec = g_variant_get_uint64(data);
183 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
184 const struct sr_channel_group *cg)
190 case SR_CONF_SCAN_OPTIONS:
191 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
192 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
194 case SR_CONF_DEVICE_OPTIONS:
195 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
196 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
205 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
207 struct dev_context *devc;
208 struct sr_serial_dev_inst *serial;
210 if (sdi->status != SR_ST_ACTIVE)
211 return SR_ERR_DEV_CLOSED;
213 if (!(devc = sdi->priv)) {
214 sr_err("sdi->priv was NULL.");
218 devc->cb_data = cb_data;
221 * Reset the number of samples to take. If we've already collected our
222 * quota, but we start a new session, and don't reset this, we'll just
223 * quit without acquiring any new samples.
225 devc->num_samples = 0;
226 devc->starttime = g_get_monotonic_time();
228 /* Send header packet to the session bus. */
229 std_session_send_df_header(cb_data, LOG_PREFIX);
231 /* Poll every 50ms, or whenever some data comes in. */
233 serial_source_add(sdi->session, serial, G_IO_IN, 50,
234 brymen_dmm_receive_data, (void *)sdi);
239 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
241 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
242 sdi->conn, LOG_PREFIX);
245 SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = {
246 .name = "brymen-bm857",
247 .longname = "Brymen BM857",
252 .dev_list = dev_list,
255 .config_set = config_set,
256 .config_list = config_list,
257 .dev_open = std_serial_dev_open,
258 .dev_close = std_serial_dev_close,
259 .dev_acquisition_start = dev_acquisition_start,
260 .dev_acquisition_stop = dev_acquisition_stop,