1 /*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
5 *
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.
10 *
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.
15 *
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/>.
18 */
19
20 #include <config.h>
21 #include <string.h>
22 #include "protocol.h"
23
24 static const uint32_t scanopts[] = {
25 SR_CONF_CONN,
26 SR_CONF_SERIALCOMM,
27 };
28
29 static const uint32_t drvopts[] = {
30 SR_CONF_THERMOMETER,
31 };
32
33 static const uint32_t devopts[] = {
34 SR_CONF_CONTINUOUS,
35 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
36 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
37 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
38 };
39
40 static const char *data_sources[] = {
41 "Live",
42 "Memory",
43 };
44
scan(struct sr_dev_driver * di,GSList * options)45 static GSList *scan(struct sr_dev_driver *di, GSList *options)
46 {
47 struct dev_context *devc;
48 struct sr_serial_dev_inst *serial;
49 struct sr_dev_inst *sdi;
50 struct sr_config *src;
51 GSList *devices, *l;
52 const char *conn, *serialcomm;
53 uint8_t buf[50];
54 size_t len;
55
56 len = sizeof(buf);
57 devices = NULL;
58 conn = serialcomm = NULL;
59 for (l = options; l; l = l->next) {
60 src = l->data;
61 switch (src->key) {
62 case SR_CONF_CONN:
63 conn = g_variant_get_string(src->data, NULL);
64 break;
65 case SR_CONF_SERIALCOMM:
66 serialcomm = g_variant_get_string(src->data, NULL);
67 break;
68 }
69 }
70 if (!conn)
71 return NULL;
72 if (!serialcomm)
73 serialcomm = "9600/8n1";
74
75 serial = sr_serial_dev_inst_new(conn, serialcomm);
76
77 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
78 return NULL;
79
80 sr_info("Probing serial port %s.", conn);
81
82 serial_flush(serial);
83
84 /* Let's get a bit of data and see if we can find a packet. */
85 if (serial_stream_detect(serial, buf, &len, 25,
86 appa_55ii_packet_valid, 500) != SR_OK)
87 goto scan_cleanup;
88
89 sr_info("Found device on port %s.", conn);
90
91 sdi = g_malloc0(sizeof(struct sr_dev_inst));
92 sdi->status = SR_ST_INACTIVE;
93 sdi->vendor = g_strdup("APPA");
94 sdi->model = g_strdup("55II");
95 devc = g_malloc0(sizeof(struct dev_context));
96 devc->data_source = DEFAULT_DATA_SOURCE;
97 sdi->inst_type = SR_INST_SERIAL;
98 sdi->conn = serial;
99 sdi->priv = devc;
100
101 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T1");
102 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T2");
103
104 devices = g_slist_append(devices, sdi);
105
106 scan_cleanup:
107 serial_close(serial);
108
109 return std_scan_complete(di, devices);
110 }
111
config_get(uint32_t key,GVariant ** data,const struct sr_dev_inst * sdi,const struct sr_channel_group * cg)112 static int config_get(uint32_t key, GVariant **data,
113 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
114 {
115 struct dev_context *devc = sdi->priv;
116
117 (void)cg;
118
119 switch (key) {
120 case SR_CONF_LIMIT_SAMPLES:
121 case SR_CONF_LIMIT_MSEC:
122 return sr_sw_limits_config_get(&devc->limits, key, data);
123 case SR_CONF_DATA_SOURCE:
124 *data = g_variant_new_string(data_sources[devc->data_source]);
125 break;
126 default:
127 return SR_ERR_NA;
128 }
129
130 return SR_OK;
131 }
132
config_set(uint32_t key,GVariant * data,const struct sr_dev_inst * sdi,const struct sr_channel_group * cg)133 static int config_set(uint32_t key, GVariant *data,
134 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
135 {
136 struct dev_context *devc;
137 int idx;
138
139 (void)cg;
140
141 devc = sdi->priv;
142
143 switch (key) {
144 case SR_CONF_LIMIT_SAMPLES:
145 case SR_CONF_LIMIT_MSEC:
146 return sr_sw_limits_config_set(&devc->limits, key, data);
147 case SR_CONF_DATA_SOURCE:
148 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
149 return SR_ERR_ARG;
150 devc->data_source = idx;
151 break;
152 default:
153 return SR_ERR_NA;
154 }
155
156 return SR_OK;
157 }
158
config_list(uint32_t key,GVariant ** data,const struct sr_dev_inst * sdi,const struct sr_channel_group * cg)159 static int config_list(uint32_t key, GVariant **data,
160 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
161 {
162 switch (key) {
163 case SR_CONF_SCAN_OPTIONS:
164 case SR_CONF_DEVICE_OPTIONS:
165 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
166 case SR_CONF_DATA_SOURCE:
167 *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
168 break;
169 default:
170 return SR_ERR_NA;
171 }
172
173 return SR_OK;
174 }
175
dev_acquisition_start(const struct sr_dev_inst * sdi)176 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
177 {
178 struct sr_serial_dev_inst *serial;
179 struct dev_context *devc;
180
181 serial = sdi->conn;
182 devc = sdi->priv;
183
184 sr_sw_limits_acquisition_start(&devc->limits);
185
186 std_session_send_df_header(sdi);
187
188 serial_source_add(sdi->session, serial, G_IO_IN, 50,
189 appa_55ii_receive_data, (void *)sdi);
190
191 return SR_OK;
192 }
193
194 static struct sr_dev_driver appa_55ii_driver_info = {
195 .name = "appa-55ii",
196 .longname = "APPA 55II",
197 .api_version = 1,
198 .init = std_init,
199 .cleanup = std_cleanup,
200 .scan = scan,
201 .dev_list = std_dev_list,
202 .dev_clear = std_dev_clear,
203 .config_get = config_get,
204 .config_set = config_set,
205 .config_list = config_list,
206 .dev_open = std_serial_dev_open,
207 .dev_close = std_serial_dev_close,
208 .dev_acquisition_start = dev_acquisition_start,
209 .dev_acquisition_stop = std_serial_dev_acquisition_stop,
210 .context = NULL,
211 };
212 SR_REGISTER_DEV_DRIVER(appa_55ii_driver_info);
213