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1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2019 Dave Buechi <db@pflutsch.ch> | |
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 "protocol.h" | |
22 | ||
23 | static const uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t drvopts[] = { | |
29 | SR_CONF_THERMOMETER, | |
30 | }; | |
31 | ||
32 | static const uint32_t devopts[] = { | |
33 | SR_CONF_CONTINUOUS, | |
34 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
35 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
36 | SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
37 | }; | |
38 | ||
39 | static const char *channel_names[] = { | |
40 | "T1", "T2", "T1-T2", | |
41 | }; | |
42 | ||
43 | static const char *data_sources[] = { | |
44 | "Live", "Memory", | |
45 | }; | |
46 | ||
47 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
48 | { | |
49 | struct dev_context *devc; | |
50 | struct sr_serial_dev_inst *serial; | |
51 | struct sr_dev_inst *sdi; | |
52 | struct sr_config *src; | |
53 | GSList *devices, *l; | |
54 | const char *conn, *serialcomm; | |
55 | uint8_t buf[2 * MASTECH_MS6514_FRAME_SIZE]; | |
56 | size_t len, i; | |
57 | ||
58 | len = sizeof(buf); | |
59 | devices = NULL; | |
60 | conn = serialcomm = NULL; | |
61 | for (l = options; l; l = l->next) { | |
62 | src = l->data; | |
63 | switch (src->key) { | |
64 | case SR_CONF_CONN: | |
65 | conn = g_variant_get_string(src->data, NULL); | |
66 | break; | |
67 | case SR_CONF_SERIALCOMM: | |
68 | serialcomm = g_variant_get_string(src->data, NULL); | |
69 | break; | |
70 | } | |
71 | } | |
72 | if (!conn) | |
73 | return NULL; | |
74 | if (!serialcomm) | |
75 | serialcomm = "9600/8n1"; | |
76 | ||
77 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
78 | ||
79 | if (serial_open(serial, SERIAL_RDONLY) != SR_OK) | |
80 | return NULL; | |
81 | ||
82 | sr_info("Probing serial port %s.", conn); | |
83 | ||
84 | serial_flush(serial); | |
85 | ||
86 | /* Let's get a bit of data and see if we can find a packet. */ | |
87 | if (serial_stream_detect(serial, buf, &len, (2 * MASTECH_MS6514_FRAME_SIZE), | |
88 | mastech_ms6514_packet_valid, 500) != SR_OK) | |
89 | goto scan_cleanup; | |
90 | ||
91 | sr_info("Found device on port %s.", conn); | |
92 | ||
93 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
94 | sdi->status = SR_ST_INACTIVE; | |
95 | sdi->vendor = g_strdup("MASTECH"); | |
96 | sdi->model = g_strdup("MS6514"); | |
97 | devc = g_malloc0(sizeof(struct dev_context)); | |
98 | devc->data_source = DEFAULT_DATA_SOURCE; | |
99 | sdi->inst_type = SR_INST_SERIAL; | |
100 | sdi->conn = serial; | |
101 | sdi->priv = devc; | |
102 | ||
103 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) | |
104 | sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]); | |
105 | ||
106 | devices = g_slist_append(devices, sdi); | |
107 | ||
108 | scan_cleanup: | |
109 | serial_close(serial); | |
110 | ||
111 | return std_scan_complete(di, devices); | |
112 | } | |
113 | ||
114 | static int config_get(uint32_t key, GVariant **data, | |
115 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
116 | { | |
117 | struct dev_context *devc = sdi->priv; | |
118 | ||
119 | (void)cg; | |
120 | ||
121 | switch (key) { | |
122 | case SR_CONF_LIMIT_SAMPLES: | |
123 | case SR_CONF_LIMIT_MSEC: | |
124 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
125 | case SR_CONF_DATA_SOURCE: | |
126 | *data = g_variant_new_string(data_sources[devc->data_source]); | |
127 | break; | |
128 | default: | |
129 | return SR_ERR_NA; | |
130 | } | |
131 | ||
132 | return SR_OK; | |
133 | } | |
134 | ||
135 | static int config_set(uint32_t key, GVariant *data, | |
136 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
137 | { | |
138 | struct dev_context *devc; | |
139 | int idx; | |
140 | ||
141 | (void)cg; | |
142 | ||
143 | devc = sdi->priv; | |
144 | ||
145 | switch (key) { | |
146 | case SR_CONF_LIMIT_SAMPLES: | |
147 | case SR_CONF_LIMIT_MSEC: | |
148 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
149 | case SR_CONF_DATA_SOURCE: | |
150 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0) | |
151 | return SR_ERR_ARG; | |
152 | devc->data_source = idx; | |
153 | break; | |
154 | default: | |
155 | return SR_ERR_NA; | |
156 | } | |
157 | ||
158 | return SR_OK; | |
159 | } | |
160 | ||
161 | static int config_list(uint32_t key, GVariant **data, | |
162 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
163 | { | |
164 | switch (key) { | |
165 | case SR_CONF_SCAN_OPTIONS: | |
166 | case SR_CONF_DEVICE_OPTIONS: | |
167 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
168 | case SR_CONF_DATA_SOURCE: | |
169 | *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources)); | |
170 | break; | |
171 | default: | |
172 | return SR_ERR_NA; | |
173 | } | |
174 | ||
175 | return SR_OK; | |
176 | } | |
177 | ||
178 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
179 | { | |
180 | struct sr_serial_dev_inst *serial; | |
181 | struct dev_context *devc; | |
182 | uint8_t command; | |
183 | ||
184 | serial = sdi->conn; | |
185 | devc = sdi->priv; | |
186 | ||
187 | sr_sw_limits_acquisition_start(&devc->limits); | |
188 | std_session_send_df_header(sdi); | |
189 | ||
190 | if (devc->data_source == DATA_SOURCE_MEMORY) { | |
191 | command = CMD_GET_STORED; | |
192 | serial_write_blocking(serial, &command, sizeof(command), 0); | |
193 | } | |
194 | ||
195 | serial_source_add(sdi->session, serial, G_IO_IN, MASTECH_MS6514_BUF_SIZE, | |
196 | mastech_ms6514_receive_data, (void *)sdi); | |
197 | ||
198 | return SR_OK; | |
199 | } | |
200 | ||
201 | static struct sr_dev_driver mastech_ms6514_driver_info = { | |
202 | .name = "mastech-ms6514", | |
203 | .longname = "MASTECH MS6514", | |
204 | .api_version = 1, | |
205 | .init = std_init, | |
206 | .cleanup = std_cleanup, | |
207 | .scan = scan, | |
208 | .dev_list = std_dev_list, | |
209 | .dev_clear = std_dev_clear, | |
210 | .config_get = config_get, | |
211 | .config_set = config_set, | |
212 | .config_list = config_list, | |
213 | .dev_open = std_serial_dev_open, | |
214 | .dev_close = std_serial_dev_close, | |
215 | .dev_acquisition_start = dev_acquisition_start, | |
216 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
217 | .context = NULL, | |
218 | }; | |
219 | SR_REGISTER_DEV_DRIVER(mastech_ms6514_driver_info); |