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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 | SR_CONF_SET, | |
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 | ||
45 | SR_PRIV struct sr_dev_driver appa_55ii_driver_info; | |
46 | ||
47 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
48 | { | |
49 | return std_init(sr_ctx, di, LOG_PREFIX); | |
50 | } | |
51 | ||
52 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
53 | { | |
54 | struct drv_context *drvc; | |
55 | struct dev_context *devc; | |
56 | struct sr_serial_dev_inst *serial; | |
57 | struct sr_dev_inst *sdi; | |
58 | struct sr_config *src; | |
59 | GSList *devices, *l; | |
60 | const char *conn, *serialcomm; | |
61 | uint8_t buf[50]; | |
62 | size_t len; | |
63 | ||
64 | len = sizeof(buf); | |
65 | devices = NULL; | |
66 | conn = serialcomm = NULL; | |
67 | for (l = options; l; l = l->next) { | |
68 | src = l->data; | |
69 | switch (src->key) { | |
70 | case SR_CONF_CONN: | |
71 | conn = g_variant_get_string(src->data, NULL); | |
72 | break; | |
73 | case SR_CONF_SERIALCOMM: | |
74 | serialcomm = g_variant_get_string(src->data, NULL); | |
75 | break; | |
76 | } | |
77 | } | |
78 | if (!conn) | |
79 | return NULL; | |
80 | if (!serialcomm) | |
81 | serialcomm = "9600/8n1"; | |
82 | ||
83 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
84 | ||
85 | if (serial_open(serial, SERIAL_RDONLY) != SR_OK) | |
86 | return NULL; | |
87 | ||
88 | sr_info("Probing serial port %s.", conn); | |
89 | ||
90 | drvc = di->context; | |
91 | drvc->instances = NULL; | |
92 | serial_flush(serial); | |
93 | ||
94 | /* Let's get a bit of data and see if we can find a packet. */ | |
95 | if (serial_stream_detect(serial, buf, &len, 25, | |
96 | appa_55ii_packet_valid, 500, 9600) != SR_OK) | |
97 | goto scan_cleanup; | |
98 | ||
99 | sr_info("Found device on port %s.", conn); | |
100 | ||
101 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
102 | sdi->status = SR_ST_INACTIVE; | |
103 | sdi->vendor = g_strdup("APPA"); | |
104 | sdi->model = g_strdup("55II"); | |
105 | devc = g_malloc0(sizeof(struct dev_context)); | |
106 | devc->data_source = DEFAULT_DATA_SOURCE; | |
107 | sdi->inst_type = SR_INST_SERIAL; | |
108 | sdi->conn = serial; | |
109 | sdi->priv = devc; | |
110 | sdi->driver = di; | |
111 | ||
112 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T1"); | |
113 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T2"); | |
114 | ||
115 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
116 | devices = g_slist_append(devices, sdi); | |
117 | ||
118 | scan_cleanup: | |
119 | serial_close(serial); | |
120 | ||
121 | return devices; | |
122 | } | |
123 | ||
124 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
125 | const struct sr_channel_group *cg) | |
126 | { | |
127 | struct dev_context *devc = sdi->priv; | |
128 | ||
129 | (void)cg; | |
130 | ||
131 | switch (key) { | |
132 | case SR_CONF_LIMIT_SAMPLES: | |
133 | *data = g_variant_new_uint64(devc->limit_samples); | |
134 | break; | |
135 | case SR_CONF_LIMIT_MSEC: | |
136 | *data = g_variant_new_uint64(devc->limit_msec); | |
137 | break; | |
138 | case SR_CONF_DATA_SOURCE: | |
139 | *data = g_variant_new_string(data_sources[devc->data_source]); | |
140 | break; | |
141 | default: | |
142 | return SR_ERR_NA; | |
143 | } | |
144 | ||
145 | return SR_OK; | |
146 | } | |
147 | ||
148 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
149 | const struct sr_channel_group *cg) | |
150 | { | |
151 | struct dev_context *devc; | |
152 | const char *tmp_str; | |
153 | unsigned int i; | |
154 | ||
155 | (void)cg; | |
156 | ||
157 | if (sdi->status != SR_ST_ACTIVE) | |
158 | return SR_ERR_DEV_CLOSED; | |
159 | ||
160 | if (!(devc = sdi->priv)) { | |
161 | sr_err("sdi->priv was NULL."); | |
162 | return SR_ERR_BUG; | |
163 | } | |
164 | ||
165 | switch (key) { | |
166 | case SR_CONF_LIMIT_SAMPLES: | |
167 | devc->limit_samples = g_variant_get_uint64(data); | |
168 | break; | |
169 | case SR_CONF_LIMIT_MSEC: | |
170 | devc->limit_msec = g_variant_get_uint64(data); | |
171 | break; | |
172 | case SR_CONF_DATA_SOURCE: { | |
173 | tmp_str = g_variant_get_string(data, NULL); | |
174 | for (i = 0; i < ARRAY_SIZE(data_sources); i++) | |
175 | if (!strcmp(tmp_str, data_sources[i])) { | |
176 | devc->data_source = i; | |
177 | break; | |
178 | } | |
179 | if (i == ARRAY_SIZE(data_sources)) | |
180 | return SR_ERR; | |
181 | break; | |
182 | } | |
183 | default: | |
184 | return SR_ERR_NA; | |
185 | } | |
186 | ||
187 | return SR_OK; | |
188 | } | |
189 | ||
190 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
191 | const struct sr_channel_group *cg) | |
192 | { | |
193 | (void)cg; | |
194 | ||
195 | switch (key) { | |
196 | case SR_CONF_SCAN_OPTIONS: | |
197 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
198 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
199 | break; | |
200 | case SR_CONF_DEVICE_OPTIONS: | |
201 | if (!sdi) | |
202 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
203 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
204 | else | |
205 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
206 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
207 | break; | |
208 | case SR_CONF_DATA_SOURCE: | |
209 | *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources)); | |
210 | break; | |
211 | default: | |
212 | return SR_ERR_NA; | |
213 | } | |
214 | ||
215 | return SR_OK; | |
216 | } | |
217 | ||
218 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
219 | { | |
220 | struct sr_serial_dev_inst *serial; | |
221 | struct dev_context *devc; | |
222 | ||
223 | serial = sdi->conn; | |
224 | if (sdi->status != SR_ST_ACTIVE) | |
225 | return SR_ERR_DEV_CLOSED; | |
226 | ||
227 | devc = sdi->priv; | |
228 | ||
229 | /* | |
230 | * Reset the number of samples to take. If we've already collected our | |
231 | * quota, but we start a new session, and don't reset this, we'll just | |
232 | * quit without acquiring any new samples. | |
233 | */ | |
234 | devc->num_samples = 0; | |
235 | devc->start_time = g_get_monotonic_time(); | |
236 | ||
237 | std_session_send_df_header(sdi, LOG_PREFIX); | |
238 | ||
239 | /* Poll every 50ms, or whenever some data comes in. */ | |
240 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
241 | appa_55ii_receive_data, (void *)sdi); | |
242 | ||
243 | return SR_OK; | |
244 | } | |
245 | ||
246 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
247 | { | |
248 | return std_serial_dev_acquisition_stop(sdi, | |
249 | std_serial_dev_close, sdi->conn, LOG_PREFIX); | |
250 | } | |
251 | ||
252 | SR_PRIV struct sr_dev_driver appa_55ii_driver_info = { | |
253 | .name = "appa-55ii", | |
254 | .longname = "APPA 55II", | |
255 | .api_version = 1, | |
256 | .init = init, | |
257 | .cleanup = std_cleanup, | |
258 | .scan = scan, | |
259 | .dev_list = std_dev_list, | |
260 | .dev_clear = NULL, | |
261 | .config_get = config_get, | |
262 | .config_set = config_set, | |
263 | .config_list = config_list, | |
264 | .dev_open = std_serial_dev_open, | |
265 | .dev_close = std_serial_dev_close, | |
266 | .dev_acquisition_start = dev_acquisition_start, | |
267 | .dev_acquisition_stop = dev_acquisition_stop, | |
268 | .context = NULL, | |
269 | }; |