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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 <string.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 | SR_CONF_SET, | |
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 *data_sources[] = { | |
40 | "Live", | |
41 | "Memory", | |
42 | }; | |
43 | ||
44 | SR_PRIV struct sr_dev_driver appa_55ii_driver_info; | |
45 | static struct sr_dev_driver *di = &appa_55ii_driver_info; | |
46 | ||
47 | static int init(struct sr_context *sr_ctx) | |
48 | { | |
49 | return std_init(sr_ctx, di, LOG_PREFIX); | |
50 | } | |
51 | ||
52 | static GSList *scan(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_channel *ch; | |
59 | struct sr_config *src; | |
60 | GSList *devices, *l; | |
61 | const char *conn, *serialcomm; | |
62 | uint8_t buf[50]; | |
63 | size_t len; | |
64 | ||
65 | len = sizeof(buf); | |
66 | devices = NULL; | |
67 | conn = serialcomm = NULL; | |
68 | for (l = options; l; l = l->next) { | |
69 | src = l->data; | |
70 | switch (src->key) { | |
71 | case SR_CONF_CONN: | |
72 | conn = g_variant_get_string(src->data, NULL); | |
73 | break; | |
74 | case SR_CONF_SERIALCOMM: | |
75 | serialcomm = g_variant_get_string(src->data, NULL); | |
76 | break; | |
77 | } | |
78 | } | |
79 | if (!conn) | |
80 | return NULL; | |
81 | if (!serialcomm) | |
82 | serialcomm = "9600/8n1"; | |
83 | ||
84 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
85 | return NULL; | |
86 | if (serial_open(serial, SERIAL_RDONLY) != SR_OK) | |
87 | return NULL; | |
88 | ||
89 | sr_info("Probing serial port %s.", conn); | |
90 | ||
91 | drvc = di->priv; | |
92 | drvc->instances = NULL; | |
93 | serial_flush(serial); | |
94 | ||
95 | /* Let's get a bit of data and see if we can find a packet. */ | |
96 | if (serial_stream_detect(serial, buf, &len, 25, | |
97 | appa_55ii_packet_valid, 500, 9600) != SR_OK) | |
98 | goto scan_cleanup; | |
99 | ||
100 | sr_info("Found device on port %s.", conn); | |
101 | ||
102 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
103 | sdi->status = SR_ST_INACTIVE; | |
104 | sdi->vendor = g_strdup("APPA"); | |
105 | sdi->model = g_strdup("55II"); | |
106 | devc = g_malloc0(sizeof(struct dev_context)); | |
107 | devc->data_source = DEFAULT_DATA_SOURCE; | |
108 | sdi->inst_type = SR_INST_SERIAL; | |
109 | sdi->conn = serial; | |
110 | sdi->priv = devc; | |
111 | sdi->driver = di; | |
112 | ||
113 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "T1"))) | |
114 | goto scan_cleanup; | |
115 | sdi->channels = g_slist_append(sdi->channels, ch); | |
116 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "T2"))) | |
117 | goto scan_cleanup; | |
118 | sdi->channels = g_slist_append(sdi->channels, ch); | |
119 | ||
120 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
121 | devices = g_slist_append(devices, sdi); | |
122 | ||
123 | scan_cleanup: | |
124 | serial_close(serial); | |
125 | ||
126 | return devices; | |
127 | } | |
128 | ||
129 | static GSList *dev_list(void) | |
130 | { | |
131 | return ((struct drv_context *)(di->priv))->instances; | |
132 | } | |
133 | ||
134 | static int cleanup(void) | |
135 | { | |
136 | return std_dev_clear(di, NULL); | |
137 | } | |
138 | ||
139 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
140 | const struct sr_channel_group *cg) | |
141 | { | |
142 | struct dev_context *devc = sdi->priv; | |
143 | ||
144 | (void)cg; | |
145 | ||
146 | switch (key) { | |
147 | case SR_CONF_LIMIT_SAMPLES: | |
148 | *data = g_variant_new_uint64(devc->limit_samples); | |
149 | break; | |
150 | case SR_CONF_LIMIT_MSEC: | |
151 | *data = g_variant_new_uint64(devc->limit_msec); | |
152 | break; | |
153 | case SR_CONF_DATA_SOURCE: | |
154 | *data = g_variant_new_string(data_sources[devc->data_source]); | |
155 | break; | |
156 | default: | |
157 | return SR_ERR_NA; | |
158 | } | |
159 | ||
160 | return SR_OK; | |
161 | } | |
162 | ||
163 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
164 | const struct sr_channel_group *cg) | |
165 | { | |
166 | struct dev_context *devc; | |
167 | const char *tmp_str; | |
168 | unsigned int i; | |
169 | ||
170 | (void)cg; | |
171 | ||
172 | if (sdi->status != SR_ST_ACTIVE) | |
173 | return SR_ERR_DEV_CLOSED; | |
174 | ||
175 | if (!(devc = sdi->priv)) { | |
176 | sr_err("sdi->priv was NULL."); | |
177 | return SR_ERR_BUG; | |
178 | } | |
179 | ||
180 | switch (key) { | |
181 | case SR_CONF_LIMIT_SAMPLES: | |
182 | devc->limit_samples = g_variant_get_uint64(data); | |
183 | sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples); | |
184 | break; | |
185 | case SR_CONF_LIMIT_MSEC: | |
186 | devc->limit_msec = g_variant_get_uint64(data); | |
187 | sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec); | |
188 | break; | |
189 | case SR_CONF_DATA_SOURCE: { | |
190 | tmp_str = g_variant_get_string(data, NULL); | |
191 | for (i = 0; i < ARRAY_SIZE(data_sources); i++) | |
192 | if (!strcmp(tmp_str, data_sources[i])) { | |
193 | devc->data_source = i; | |
194 | break; | |
195 | } | |
196 | if (i == ARRAY_SIZE(data_sources)) | |
197 | return SR_ERR; | |
198 | break; | |
199 | } | |
200 | default: | |
201 | return SR_ERR_NA; | |
202 | } | |
203 | ||
204 | return SR_OK; | |
205 | } | |
206 | ||
207 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
208 | const struct sr_channel_group *cg) | |
209 | { | |
210 | (void)sdi; | |
211 | (void)cg; | |
212 | ||
213 | switch (key) { | |
214 | case SR_CONF_SCAN_OPTIONS: | |
215 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
216 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
217 | break; | |
218 | case SR_CONF_DEVICE_OPTIONS: | |
219 | if (!sdi) | |
220 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
221 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
222 | else | |
223 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
224 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
225 | break; | |
226 | case SR_CONF_DATA_SOURCE: | |
227 | *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources)); | |
228 | break; | |
229 | default: | |
230 | return SR_ERR_NA; | |
231 | } | |
232 | ||
233 | return SR_OK; | |
234 | } | |
235 | ||
236 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
237 | void *cb_data) | |
238 | { | |
239 | struct sr_serial_dev_inst *serial; | |
240 | struct dev_context *devc; | |
241 | ||
242 | serial = sdi->conn; | |
243 | if (sdi->status != SR_ST_ACTIVE) | |
244 | return SR_ERR_DEV_CLOSED; | |
245 | ||
246 | if (!(devc = sdi->priv)) { | |
247 | sr_err("sdi->priv was NULL."); | |
248 | return SR_ERR_BUG; | |
249 | } | |
250 | ||
251 | devc->session_cb_data = cb_data; | |
252 | ||
253 | /* | |
254 | * Reset the number of samples to take. If we've already collected our | |
255 | * quota, but we start a new session, and don't reset this, we'll just | |
256 | * quit without acquiring any new samples. | |
257 | */ | |
258 | devc->num_samples = 0; | |
259 | devc->start_time = g_get_monotonic_time(); | |
260 | ||
261 | /* Send header packet to the session bus. */ | |
262 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
263 | ||
264 | /* Poll every 50ms, or whenever some data comes in. */ | |
265 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
266 | appa_55ii_receive_data, (void *)sdi); | |
267 | ||
268 | return SR_OK; | |
269 | } | |
270 | ||
271 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
272 | { | |
273 | return std_serial_dev_acquisition_stop(sdi, cb_data, | |
274 | std_serial_dev_close, sdi->conn, LOG_PREFIX); | |
275 | } | |
276 | ||
277 | SR_PRIV struct sr_dev_driver appa_55ii_driver_info = { | |
278 | .name = "appa-55ii", | |
279 | .longname = "APPA 55II", | |
280 | .api_version = 1, | |
281 | .init = init, | |
282 | .cleanup = cleanup, | |
283 | .scan = scan, | |
284 | .dev_list = dev_list, | |
285 | .dev_clear = NULL, | |
286 | .config_get = config_get, | |
287 | .config_set = config_set, | |
288 | .config_list = config_list, | |
289 | .dev_open = std_serial_dev_open, | |
290 | .dev_close = std_serial_dev_close, | |
291 | .dev_acquisition_start = dev_acquisition_start, | |
292 | .dev_acquisition_stop = dev_acquisition_stop, | |
293 | .priv = NULL, | |
294 | }; |