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 sdi = g_malloc0(sizeof(struct sr_dev_inst));
79 sdi->status = SR_ST_INACTIVE;
80 sdi->vendor = g_strdup("Brymen");
81 sdi->model = g_strdup("BM85x");
82 devc = g_malloc0(sizeof(struct dev_context));
83 sdi->inst_type = SR_INST_SERIAL;
89 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1")))
92 sdi->channels = g_slist_append(sdi->channels, ch);
93 drvc->instances = g_slist_append(drvc->instances, sdi);
94 devices = g_slist_append(devices, sdi);
102 static GSList *scan(GSList *options)
104 struct drv_context *drvc;
105 struct sr_config *src;
107 const char *conn, *serialcomm;
111 drvc->instances = NULL;
113 conn = serialcomm = NULL;
114 for (l = options; l; l = l->next) {
118 conn = g_variant_get_string(src->data, NULL);
120 case SR_CONF_SERIALCOMM:
121 serialcomm = g_variant_get_string(src->data, NULL);
129 /* Use the provided comm specs. */
130 devices = brymen_scan(conn, serialcomm);
132 /* But 9600/8n1 should work all of the time. */
133 devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1");
139 static GSList *dev_list(void)
141 return ((struct drv_context *)(di->priv))->instances;
144 static int cleanup(void)
146 return std_dev_clear(di, NULL);
149 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
150 const struct sr_channel_group *cg)
152 struct dev_context *devc;
157 if (sdi->status != SR_ST_ACTIVE)
158 return SR_ERR_DEV_CLOSED;
160 if (!(devc = sdi->priv)) {
161 sr_err("sdi->priv was NULL.");
167 case SR_CONF_LIMIT_SAMPLES:
168 devc->limit_samples = g_variant_get_uint64(data);
170 case SR_CONF_LIMIT_MSEC:
171 devc->limit_msec = g_variant_get_uint64(data);
180 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
181 const struct sr_channel_group *cg)
187 case SR_CONF_SCAN_OPTIONS:
188 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
189 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
191 case SR_CONF_DEVICE_OPTIONS:
192 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
193 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
202 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
204 struct dev_context *devc;
205 struct sr_serial_dev_inst *serial;
207 if (sdi->status != SR_ST_ACTIVE)
208 return SR_ERR_DEV_CLOSED;
210 if (!(devc = sdi->priv)) {
211 sr_err("sdi->priv was NULL.");
215 devc->cb_data = cb_data;
218 * Reset the number of samples to take. If we've already collected our
219 * quota, but we start a new session, and don't reset this, we'll just
220 * quit without acquiring any new samples.
222 devc->num_samples = 0;
223 devc->starttime = g_get_monotonic_time();
225 /* Send header packet to the session bus. */
226 std_session_send_df_header(cb_data, LOG_PREFIX);
228 /* Poll every 50ms, or whenever some data comes in. */
230 serial_source_add(sdi->session, serial, G_IO_IN, 50,
231 brymen_dmm_receive_data, (void *)sdi);
236 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
238 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
239 sdi->conn, LOG_PREFIX);
242 SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = {
243 .name = "brymen-bm857",
244 .longname = "Brymen BM857",
249 .dev_list = dev_list,
252 .config_set = config_set,
253 .config_list = config_list,
254 .dev_open = std_serial_dev_open,
255 .dev_close = std_serial_dev_close,
256 .dev_acquisition_start = dev_acquisition_start,
257 .dev_acquisition_stop = dev_acquisition_stop,