2 * This file is part of the libsigrok project.
4 * Copyright (C) 2015 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, see <http://www.gnu.org/licenses/>.
22 #include <libsigrok/libsigrok.h>
23 #include "libsigrok-internal.h"
26 static const uint32_t scanopts[] = {
31 static const uint32_t drvopts[] = {
35 static const uint32_t devopts[] = {
37 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
38 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
41 static GSList *scan(struct sr_dev_driver *di, GSList *options)
43 struct scale_info *scale;
44 struct sr_config *src;
46 const char *conn, *serialcomm;
47 struct sr_dev_inst *sdi;
48 struct dev_context *devc;
49 struct sr_serial_dev_inst *serial;
54 scale = (struct scale_info *)di;
56 conn = serialcomm = NULL;
57 for (l = options; l; l = l->next) {
61 conn = g_variant_get_string(src->data, NULL);
63 case SR_CONF_SERIALCOMM:
64 serialcomm = g_variant_get_string(src->data, NULL);
72 serialcomm = scale->conn;
74 serial = sr_serial_dev_inst_new(conn, serialcomm);
76 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
79 sr_info("Probing serial port %s.", conn);
83 sr_spew("Set O1 mode (continuous values, stable and unstable ones).");
84 if (serial_write_blocking(serial, "O1\r\n", 4, 0) < 0)
86 /* Device replies with "A00\r\n" (OK) or "E01\r\n" (Error). Ignore. */
88 /* Let's get a bit of data and see if we can find a packet. */
90 ret = serial_stream_detect(serial, buf, &len, scale->packet_size,
91 scale->packet_valid, 3000);
95 sr_info("Found device on port %s.", conn);
97 sdi = g_malloc0(sizeof(struct sr_dev_inst));
98 sdi->status = SR_ST_INACTIVE;
99 sdi->vendor = g_strdup(scale->vendor);
100 sdi->model = g_strdup(scale->device);
101 devc = g_malloc0(sizeof(struct dev_context));
102 sr_sw_limits_init(&devc->limits);
103 sdi->inst_type = SR_INST_SERIAL;
106 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Mass");
107 devices = g_slist_append(devices, sdi);
110 serial_close(serial);
112 return std_scan_complete(di, devices);
115 static int config_set(uint32_t key, GVariant *data,
116 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
118 struct dev_context *devc;
124 return sr_sw_limits_config_set(&devc->limits, key, data);
127 static int config_list(uint32_t key, GVariant **data,
128 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
130 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
133 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
135 struct dev_context *devc;
136 struct sr_serial_dev_inst *serial;
141 sr_spew("Set O1 mode (continuous values, stable and unstable ones).");
142 if (serial_write_blocking(serial, "O1\r\n", 4, 0) < 0)
144 /* Device replies with "A00\r\n" (OK) or "E01\r\n" (Error). Ignore. */
146 sr_sw_limits_acquisition_start(&devc->limits);
147 std_session_send_df_header(sdi);
149 serial_source_add(sdi->session, serial, G_IO_IN, 50,
150 kern_scale_receive_data, (void *)sdi);
155 #define SCALE(ID, CHIPSET, VENDOR, MODEL, CONN, PACKETSIZE, \
157 &((struct scale_info) { \
160 .longname = VENDOR " " MODEL, \
163 .cleanup = std_cleanup, \
165 .dev_list = std_dev_list, \
166 .dev_clear = std_dev_clear, \
167 .config_get = NULL, \
168 .config_set = config_set, \
169 .config_list = config_list, \
170 .dev_open = std_serial_dev_open, \
171 .dev_close = std_serial_dev_close, \
172 .dev_acquisition_start = dev_acquisition_start, \
173 .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
176 VENDOR, MODEL, CONN, PACKETSIZE, \
177 VALID, PARSE, sizeof(struct CHIPSET##_info) \
181 * Some scales have (user-configurable) 14-byte or 15-byte packets.
182 * We transparently support both variants by specifying the larger value
183 * below and due to the way the stream parser works.
185 * The scales have a standard baudrate (model dependent) as listed below,
186 * but serial parameters are user-configurable. We support that by letting
187 * the user override them via "serialcomm".
190 SR_REGISTER_DEV_DRIVER_LIST(kern_scale_drivers,
192 "kern-ew-6200-2nm", kern,
193 "KERN", "EW 6200-2NM", "1200/8n2",
194 15 /* (or 14) */, sr_kern_packet_valid, sr_kern_parse