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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de> | |
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 2 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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "protocol.h" | |
22 | ||
23 | static const int32_t hwopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const int32_t hwcaps[] = { | |
29 | SR_CONF_THERMOMETER, | |
30 | SR_CONF_HYGROMETER, | |
31 | SR_CONF_LIMIT_SAMPLES, | |
32 | SR_CONF_LIMIT_MSEC, | |
33 | SR_CONF_CONTINUOUS, | |
34 | }; | |
35 | ||
36 | SR_PRIV struct sr_dev_driver mic_98581_driver_info; | |
37 | SR_PRIV struct sr_dev_driver mic_98583_driver_info; | |
38 | ||
39 | SR_PRIV const struct mic_dev_info mic_devs[] = { | |
40 | { | |
41 | "MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6, | |
42 | packet_valid_temp, | |
43 | &mic_98581_driver_info, receive_data_MIC_98581, | |
44 | }, | |
45 | { | |
46 | "MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10, | |
47 | packet_valid_temp_hum, | |
48 | &mic_98583_driver_info, receive_data_MIC_98583, | |
49 | }, | |
50 | }; | |
51 | ||
52 | static int dev_clear(int idx) | |
53 | { | |
54 | return std_dev_clear(mic_devs[idx].di, NULL); | |
55 | } | |
56 | ||
57 | static int init(struct sr_context *sr_ctx, int idx) | |
58 | { | |
59 | sr_dbg("Selected '%s' subdriver.", mic_devs[idx].di->name); | |
60 | ||
61 | return std_init(sr_ctx, mic_devs[idx].di, LOG_PREFIX); | |
62 | } | |
63 | ||
64 | static GSList *mic_scan(const char *conn, const char *serialcomm, int idx) | |
65 | { | |
66 | struct sr_dev_inst *sdi; | |
67 | struct drv_context *drvc; | |
68 | struct dev_context *devc; | |
69 | struct sr_probe *probe; | |
70 | struct sr_serial_dev_inst *serial; | |
71 | GSList *devices; | |
72 | ||
73 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
74 | return NULL; | |
75 | ||
76 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
77 | return NULL; | |
78 | ||
79 | drvc = mic_devs[idx].di->priv; | |
80 | devices = NULL; | |
81 | serial_flush(serial); | |
82 | ||
83 | /* TODO: Query device type. */ | |
84 | // ret = mic_cmd_get_device_info(serial); | |
85 | ||
86 | sr_info("Found device on port %s.", conn); | |
87 | ||
88 | /* TODO: Fill in version from protocol response. */ | |
89 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, mic_devs[idx].vendor, | |
90 | mic_devs[idx].device, ""))) | |
91 | goto scan_cleanup; | |
92 | ||
93 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
94 | sr_err("Device context malloc failed."); | |
95 | goto scan_cleanup; | |
96 | } | |
97 | ||
98 | sdi->inst_type = SR_INST_SERIAL; | |
99 | sdi->conn = serial; | |
100 | ||
101 | sdi->priv = devc; | |
102 | sdi->driver = mic_devs[idx].di; | |
103 | ||
104 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "Temperature"))) | |
105 | goto scan_cleanup; | |
106 | sdi->probes = g_slist_append(sdi->probes, probe); | |
107 | ||
108 | if (mic_devs[idx].has_humidity) { | |
109 | if (!(probe = sr_probe_new(1, SR_PROBE_ANALOG, TRUE, "Humidity"))) | |
110 | goto scan_cleanup; | |
111 | sdi->probes = g_slist_append(sdi->probes, probe); | |
112 | } | |
113 | ||
114 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
115 | devices = g_slist_append(devices, sdi); | |
116 | ||
117 | scan_cleanup: | |
118 | serial_close(serial); | |
119 | ||
120 | return devices; | |
121 | } | |
122 | ||
123 | static GSList *scan(GSList *options, int idx) | |
124 | { | |
125 | struct sr_config *src; | |
126 | GSList *l, *devices; | |
127 | const char *conn, *serialcomm; | |
128 | ||
129 | conn = serialcomm = NULL; | |
130 | for (l = options; l; l = l->next) { | |
131 | src = l->data; | |
132 | switch (src->key) { | |
133 | case SR_CONF_CONN: | |
134 | conn = g_variant_get_string(src->data, NULL); | |
135 | break; | |
136 | case SR_CONF_SERIALCOMM: | |
137 | serialcomm = g_variant_get_string(src->data, NULL); | |
138 | break; | |
139 | } | |
140 | } | |
141 | if (!conn) | |
142 | return NULL; | |
143 | ||
144 | if (serialcomm) { | |
145 | /* Use the provided comm specs. */ | |
146 | devices = mic_scan(conn, serialcomm, idx); | |
147 | } else { | |
148 | /* Try the default. */ | |
149 | devices = mic_scan(conn, mic_devs[idx].conn, idx); | |
150 | } | |
151 | ||
152 | return devices; | |
153 | } | |
154 | ||
155 | static GSList *dev_list(int idx) | |
156 | { | |
157 | return ((struct drv_context *)(mic_devs[idx].di->priv))->instances; | |
158 | } | |
159 | ||
160 | static int dev_open(struct sr_dev_inst *sdi) | |
161 | { | |
162 | struct sr_serial_dev_inst *serial; | |
163 | ||
164 | serial = sdi->conn; | |
165 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
166 | return SR_ERR; | |
167 | ||
168 | sdi->status = SR_ST_ACTIVE; | |
169 | ||
170 | return SR_OK; | |
171 | } | |
172 | ||
173 | static int dev_close(struct sr_dev_inst *sdi) | |
174 | { | |
175 | struct sr_serial_dev_inst *serial; | |
176 | ||
177 | serial = sdi->conn; | |
178 | if (serial && serial->fd != -1) { | |
179 | serial_close(serial); | |
180 | sdi->status = SR_ST_INACTIVE; | |
181 | } | |
182 | ||
183 | return SR_OK; | |
184 | } | |
185 | ||
186 | static int cleanup(int idx) | |
187 | { | |
188 | return dev_clear(idx); | |
189 | } | |
190 | ||
191 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) | |
192 | { | |
193 | struct dev_context *devc; | |
194 | ||
195 | if (sdi->status != SR_ST_ACTIVE) | |
196 | return SR_ERR_DEV_CLOSED; | |
197 | ||
198 | devc = sdi->priv; | |
199 | ||
200 | switch (id) { | |
201 | case SR_CONF_LIMIT_SAMPLES: | |
202 | devc->limit_samples = g_variant_get_uint64(data); | |
203 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
204 | devc->limit_samples); | |
205 | break; | |
206 | case SR_CONF_LIMIT_MSEC: | |
207 | devc->limit_msec = g_variant_get_uint64(data); | |
208 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
209 | devc->limit_msec); | |
210 | break; | |
211 | default: | |
212 | return SR_ERR_NA; | |
213 | } | |
214 | ||
215 | return SR_OK; | |
216 | } | |
217 | ||
218 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
219 | { | |
220 | (void)sdi; | |
221 | ||
222 | switch (key) { | |
223 | case SR_CONF_SCAN_OPTIONS: | |
224 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
225 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
226 | break; | |
227 | case SR_CONF_DEVICE_OPTIONS: | |
228 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
229 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
230 | break; | |
231 | default: | |
232 | return SR_ERR_NA; | |
233 | } | |
234 | ||
235 | return SR_OK; | |
236 | } | |
237 | ||
238 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
239 | void *cb_data, int idx) | |
240 | { | |
241 | struct dev_context *devc; | |
242 | struct sr_serial_dev_inst *serial; | |
243 | ||
244 | if (sdi->status != SR_ST_ACTIVE) | |
245 | return SR_ERR_DEV_CLOSED; | |
246 | ||
247 | devc = sdi->priv; | |
248 | devc->cb_data = cb_data; | |
249 | devc->num_samples = 0; | |
250 | devc->starttime = g_get_monotonic_time(); | |
251 | ||
252 | /* Send header packet to the session bus. */ | |
253 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
254 | ||
255 | /* Poll every 100ms, or whenever some data comes in. */ | |
256 | serial = sdi->conn; | |
257 | sr_source_add(serial->fd, G_IO_IN, 100, | |
258 | mic_devs[idx].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_dev_acquisition_stop_serial(sdi, cb_data, dev_close, | |
266 | sdi->conn, LOG_PREFIX); | |
267 | } | |
268 | ||
269 | /* Driver-specific API function wrappers */ | |
270 | #define HW_INIT(X) \ | |
271 | static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); } | |
272 | #define HW_CLEANUP(X) \ | |
273 | static int cleanup_##X(void) { return cleanup(X); } | |
274 | #define HW_SCAN(X) \ | |
275 | static GSList *scan_##X(GSList *options) { return scan(options, X); } | |
276 | #define HW_DEV_LIST(X) \ | |
277 | static GSList *dev_list_##X(void) { return dev_list(X); } | |
278 | #define HW_DEV_CLEAR(X) \ | |
279 | static int dev_clear_##X(void) { return dev_clear(X); } | |
280 | #define HW_DEV_ACQUISITION_START(X) \ | |
281 | static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \ | |
282 | void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); } | |
283 | ||
284 | /* Driver structs and API function wrappers */ | |
285 | #define DRV(ID, ID_UPPER, NAME, LONGNAME) \ | |
286 | HW_INIT(ID_UPPER) \ | |
287 | HW_CLEANUP(ID_UPPER) \ | |
288 | HW_SCAN(ID_UPPER) \ | |
289 | HW_DEV_LIST(ID_UPPER) \ | |
290 | HW_DEV_CLEAR(ID_UPPER) \ | |
291 | HW_DEV_ACQUISITION_START(ID_UPPER) \ | |
292 | SR_PRIV struct sr_dev_driver ID##_driver_info = { \ | |
293 | .name = NAME, \ | |
294 | .longname = LONGNAME, \ | |
295 | .api_version = 1, \ | |
296 | .init = init_##ID_UPPER, \ | |
297 | .cleanup = cleanup_##ID_UPPER, \ | |
298 | .scan = scan_##ID_UPPER, \ | |
299 | .dev_list = dev_list_##ID_UPPER, \ | |
300 | .dev_clear = dev_clear_##ID_UPPER, \ | |
301 | .config_get = NULL, \ | |
302 | .config_set = config_set, \ | |
303 | .config_list = config_list, \ | |
304 | .dev_open = dev_open, \ | |
305 | .dev_close = dev_close, \ | |
306 | .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \ | |
307 | .dev_acquisition_stop = dev_acquisition_stop, \ | |
308 | .priv = NULL, \ | |
309 | }; | |
310 | ||
311 | DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581") | |
312 | DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583") |