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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 GSList *dev_list(const struct sr_dev_driver *di) | |
125 | { | |
126 | return ((struct drv_context *)(di->context))->instances; | |
127 | } | |
128 | ||
129 | static int cleanup(const struct sr_dev_driver *di) | |
130 | { | |
131 | return std_dev_clear(di, NULL); | |
132 | } | |
133 | ||
134 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
135 | const struct sr_channel_group *cg) | |
136 | { | |
137 | struct dev_context *devc = sdi->priv; | |
138 | ||
139 | (void)cg; | |
140 | ||
141 | switch (key) { | |
142 | case SR_CONF_LIMIT_SAMPLES: | |
143 | *data = g_variant_new_uint64(devc->limit_samples); | |
144 | break; | |
145 | case SR_CONF_LIMIT_MSEC: | |
146 | *data = g_variant_new_uint64(devc->limit_msec); | |
147 | break; | |
148 | case SR_CONF_DATA_SOURCE: | |
149 | *data = g_variant_new_string(data_sources[devc->data_source]); | |
150 | break; | |
151 | default: | |
152 | return SR_ERR_NA; | |
153 | } | |
154 | ||
155 | return SR_OK; | |
156 | } | |
157 | ||
158 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
159 | const struct sr_channel_group *cg) | |
160 | { | |
161 | struct dev_context *devc; | |
162 | const char *tmp_str; | |
163 | unsigned int i; | |
164 | ||
165 | (void)cg; | |
166 | ||
167 | if (sdi->status != SR_ST_ACTIVE) | |
168 | return SR_ERR_DEV_CLOSED; | |
169 | ||
170 | if (!(devc = sdi->priv)) { | |
171 | sr_err("sdi->priv was NULL."); | |
172 | return SR_ERR_BUG; | |
173 | } | |
174 | ||
175 | switch (key) { | |
176 | case SR_CONF_LIMIT_SAMPLES: | |
177 | devc->limit_samples = g_variant_get_uint64(data); | |
178 | break; | |
179 | case SR_CONF_LIMIT_MSEC: | |
180 | devc->limit_msec = g_variant_get_uint64(data); | |
181 | break; | |
182 | case SR_CONF_DATA_SOURCE: { | |
183 | tmp_str = g_variant_get_string(data, NULL); | |
184 | for (i = 0; i < ARRAY_SIZE(data_sources); i++) | |
185 | if (!strcmp(tmp_str, data_sources[i])) { | |
186 | devc->data_source = i; | |
187 | break; | |
188 | } | |
189 | if (i == ARRAY_SIZE(data_sources)) | |
190 | return SR_ERR; | |
191 | break; | |
192 | } | |
193 | default: | |
194 | return SR_ERR_NA; | |
195 | } | |
196 | ||
197 | return SR_OK; | |
198 | } | |
199 | ||
200 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
201 | const struct sr_channel_group *cg) | |
202 | { | |
203 | (void)cg; | |
204 | ||
205 | switch (key) { | |
206 | case SR_CONF_SCAN_OPTIONS: | |
207 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
208 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
209 | break; | |
210 | case SR_CONF_DEVICE_OPTIONS: | |
211 | if (!sdi) | |
212 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
213 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
214 | else | |
215 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
216 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
217 | break; | |
218 | case SR_CONF_DATA_SOURCE: | |
219 | *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources)); | |
220 | break; | |
221 | default: | |
222 | return SR_ERR_NA; | |
223 | } | |
224 | ||
225 | return SR_OK; | |
226 | } | |
227 | ||
228 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
229 | void *cb_data) | |
230 | { | |
231 | struct sr_serial_dev_inst *serial; | |
232 | struct dev_context *devc; | |
233 | ||
234 | serial = sdi->conn; | |
235 | if (sdi->status != SR_ST_ACTIVE) | |
236 | return SR_ERR_DEV_CLOSED; | |
237 | ||
238 | if (!(devc = sdi->priv)) { | |
239 | sr_err("sdi->priv was NULL."); | |
240 | return SR_ERR_BUG; | |
241 | } | |
242 | ||
243 | devc->session_cb_data = cb_data; | |
244 | ||
245 | /* | |
246 | * Reset the number of samples to take. If we've already collected our | |
247 | * quota, but we start a new session, and don't reset this, we'll just | |
248 | * quit without acquiring any new samples. | |
249 | */ | |
250 | devc->num_samples = 0; | |
251 | devc->start_time = g_get_monotonic_time(); | |
252 | ||
253 | /* Send header packet to the session bus. */ | |
254 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
255 | ||
256 | /* Poll every 50ms, or whenever some data comes in. */ | |
257 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
258 | appa_55ii_receive_data, (void *)sdi); | |
259 | ||
260 | return SR_OK; | |
261 | } | |
262 | ||
263 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
264 | { | |
265 | return std_serial_dev_acquisition_stop(sdi, cb_data, | |
266 | std_serial_dev_close, sdi->conn, LOG_PREFIX); | |
267 | } | |
268 | ||
269 | SR_PRIV struct sr_dev_driver appa_55ii_driver_info = { | |
270 | .name = "appa-55ii", | |
271 | .longname = "APPA 55II", | |
272 | .api_version = 1, | |
273 | .init = init, | |
274 | .cleanup = cleanup, | |
275 | .scan = scan, | |
276 | .dev_list = dev_list, | |
277 | .dev_clear = NULL, | |
278 | .config_get = config_get, | |
279 | .config_set = config_set, | |
280 | .config_list = config_list, | |
281 | .dev_open = std_serial_dev_open, | |
282 | .dev_close = std_serial_dev_close, | |
283 | .dev_acquisition_start = dev_acquisition_start, | |
284 | .dev_acquisition_stop = dev_acquisition_stop, | |
285 | .context = NULL, | |
286 | }; |