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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 uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t drvopts_temp[] = { | |
29 | SR_CONF_THERMOMETER, | |
30 | }; | |
31 | ||
32 | static const uint32_t drvopts_temp_hum[] = { | |
33 | SR_CONF_THERMOMETER, | |
34 | SR_CONF_HYGROMETER, | |
35 | }; | |
36 | ||
37 | static const uint32_t devopts[] = { | |
38 | SR_CONF_CONTINUOUS | SR_CONF_SET, | |
39 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
40 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
41 | }; | |
42 | ||
43 | SR_PRIV struct sr_dev_driver mic_98581_driver_info; | |
44 | SR_PRIV struct sr_dev_driver mic_98583_driver_info; | |
45 | ||
46 | SR_PRIV const struct mic_dev_info mic_devs[] = { | |
47 | { | |
48 | "MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6, | |
49 | packet_valid_temp, | |
50 | &mic_98581_driver_info, receive_data_MIC_98581, | |
51 | }, | |
52 | { | |
53 | "MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10, | |
54 | packet_valid_temp_hum, | |
55 | &mic_98583_driver_info, receive_data_MIC_98583, | |
56 | }, | |
57 | }; | |
58 | ||
59 | static int dev_clear(int idx) | |
60 | { | |
61 | return std_dev_clear(mic_devs[idx].di, NULL); | |
62 | } | |
63 | ||
64 | static int init(struct sr_context *sr_ctx, int idx) | |
65 | { | |
66 | return std_init(sr_ctx, mic_devs[idx].di, LOG_PREFIX); | |
67 | } | |
68 | ||
69 | static GSList *mic_scan(const char *conn, const char *serialcomm, int idx) | |
70 | { | |
71 | struct sr_dev_inst *sdi; | |
72 | struct drv_context *drvc; | |
73 | struct dev_context *devc; | |
74 | struct sr_serial_dev_inst *serial; | |
75 | GSList *devices; | |
76 | ||
77 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
78 | ||
79 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
80 | return NULL; | |
81 | ||
82 | drvc = mic_devs[idx].di->priv; | |
83 | devices = NULL; | |
84 | serial_flush(serial); | |
85 | ||
86 | /* TODO: Query device type. */ | |
87 | // ret = mic_cmd_get_device_info(serial); | |
88 | ||
89 | sr_info("Found device on port %s.", conn); | |
90 | ||
91 | /* TODO: Fill in version from protocol response. */ | |
92 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
93 | sdi->status = SR_ST_INACTIVE; | |
94 | sdi->vendor = g_strdup(mic_devs[idx].vendor); | |
95 | sdi->model = g_strdup(mic_devs[idx].device); | |
96 | devc = g_malloc0(sizeof(struct dev_context)); | |
97 | sdi->inst_type = SR_INST_SERIAL; | |
98 | sdi->conn = serial; | |
99 | sdi->priv = devc; | |
100 | sdi->driver = mic_devs[idx].di; | |
101 | ||
102 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temperature"); | |
103 | ||
104 | if (mic_devs[idx].has_humidity) | |
105 | sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "Humidity"); | |
106 | ||
107 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
108 | devices = g_slist_append(devices, sdi); | |
109 | ||
110 | serial_close(serial); | |
111 | ||
112 | return devices; | |
113 | } | |
114 | ||
115 | static GSList *scan(GSList *options, int idx) | |
116 | { | |
117 | struct sr_config *src; | |
118 | GSList *l, *devices; | |
119 | const char *conn, *serialcomm; | |
120 | ||
121 | conn = serialcomm = NULL; | |
122 | for (l = options; l; l = l->next) { | |
123 | src = l->data; | |
124 | switch (src->key) { | |
125 | case SR_CONF_CONN: | |
126 | conn = g_variant_get_string(src->data, NULL); | |
127 | break; | |
128 | case SR_CONF_SERIALCOMM: | |
129 | serialcomm = g_variant_get_string(src->data, NULL); | |
130 | break; | |
131 | } | |
132 | } | |
133 | if (!conn) | |
134 | return NULL; | |
135 | ||
136 | if (serialcomm) { | |
137 | /* Use the provided comm specs. */ | |
138 | devices = mic_scan(conn, serialcomm, idx); | |
139 | } else { | |
140 | /* Try the default. */ | |
141 | devices = mic_scan(conn, mic_devs[idx].conn, idx); | |
142 | } | |
143 | ||
144 | return devices; | |
145 | } | |
146 | ||
147 | static GSList *dev_list(int idx) | |
148 | { | |
149 | return ((struct drv_context *)(mic_devs[idx].di->priv))->instances; | |
150 | } | |
151 | ||
152 | static int cleanup(int idx) | |
153 | { | |
154 | return dev_clear(idx); | |
155 | } | |
156 | ||
157 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
158 | const struct sr_channel_group *cg) | |
159 | { | |
160 | struct dev_context *devc; | |
161 | ||
162 | (void)cg; | |
163 | ||
164 | if (sdi->status != SR_ST_ACTIVE) | |
165 | return SR_ERR_DEV_CLOSED; | |
166 | ||
167 | devc = sdi->priv; | |
168 | ||
169 | switch (key) { | |
170 | case SR_CONF_LIMIT_SAMPLES: | |
171 | devc->limit_samples = g_variant_get_uint64(data); | |
172 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
173 | devc->limit_samples); | |
174 | break; | |
175 | case SR_CONF_LIMIT_MSEC: | |
176 | devc->limit_msec = g_variant_get_uint64(data); | |
177 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
178 | devc->limit_msec); | |
179 | break; | |
180 | default: | |
181 | return SR_ERR_NA; | |
182 | } | |
183 | ||
184 | return SR_OK; | |
185 | } | |
186 | ||
187 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
188 | const struct sr_channel_group *cg, int idx) | |
189 | { | |
190 | (void)cg; | |
191 | ||
192 | switch (key) { | |
193 | case SR_CONF_SCAN_OPTIONS: | |
194 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
195 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
196 | break; | |
197 | case SR_CONF_DEVICE_OPTIONS: | |
198 | if (!sdi && !mic_devs[idx].has_humidity) { | |
199 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
200 | drvopts_temp, ARRAY_SIZE(drvopts_temp), | |
201 | sizeof(uint32_t)); | |
202 | } else if (!sdi && mic_devs[idx].has_humidity) { | |
203 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
204 | drvopts_temp_hum, ARRAY_SIZE(drvopts_temp_hum), | |
205 | sizeof(uint32_t)); | |
206 | } else { | |
207 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
208 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
209 | } | |
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 | void *cb_data, int idx) | |
220 | { | |
221 | struct dev_context *devc; | |
222 | struct sr_serial_dev_inst *serial; | |
223 | ||
224 | if (sdi->status != SR_ST_ACTIVE) | |
225 | return SR_ERR_DEV_CLOSED; | |
226 | ||
227 | devc = sdi->priv; | |
228 | devc->cb_data = cb_data; | |
229 | devc->num_samples = 0; | |
230 | devc->starttime = g_get_monotonic_time(); | |
231 | ||
232 | /* Send header packet to the session bus. */ | |
233 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
234 | ||
235 | /* Poll every 100ms, or whenever some data comes in. */ | |
236 | serial = sdi->conn; | |
237 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
238 | mic_devs[idx].receive_data, (void *)sdi); | |
239 | ||
240 | return SR_OK; | |
241 | } | |
242 | ||
243 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
244 | { | |
245 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, | |
246 | sdi->conn, LOG_PREFIX); | |
247 | } | |
248 | ||
249 | /* Driver-specific API function wrappers */ | |
250 | #define HW_INIT(X) \ | |
251 | static int init_##X(struct sr_dev_driver *di, struct sr_context *sr_ctx) { \ | |
252 | (void)di; return init(sr_ctx, X); } | |
253 | #define HW_CLEANUP(X) \ | |
254 | static int cleanup_##X(const struct sr_dev_driver *di) { \ | |
255 | (void)di; return cleanup(X); } | |
256 | #define HW_SCAN(X) \ | |
257 | static GSList *scan_##X(struct sr_dev_driver *di, GSList *options) { \ | |
258 | (void)di; return scan(options, X); } | |
259 | #define HW_DEV_LIST(X) \ | |
260 | static GSList *dev_list_##X(const struct sr_dev_driver *di) { \ | |
261 | (void)di; return dev_list(X); } | |
262 | #define HW_DEV_CLEAR(X) \ | |
263 | static int dev_clear_##X(const struct sr_dev_driver *di) { \ | |
264 | (void)di; return dev_clear(X); } | |
265 | #define HW_CONFIG_LIST(X) \ | |
266 | static int config_list_##X(uint32_t key, GVariant **data, \ | |
267 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { \ | |
268 | return config_list(key, data, sdi, cg, X); } | |
269 | #define HW_DEV_ACQUISITION_START(X) \ | |
270 | static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \ | |
271 | void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); } | |
272 | ||
273 | /* Driver structs and API function wrappers */ | |
274 | #define DRV(ID, ID_UPPER, NAME, LONGNAME) \ | |
275 | HW_INIT(ID_UPPER) \ | |
276 | HW_CLEANUP(ID_UPPER) \ | |
277 | HW_SCAN(ID_UPPER) \ | |
278 | HW_DEV_LIST(ID_UPPER) \ | |
279 | HW_DEV_CLEAR(ID_UPPER) \ | |
280 | HW_CONFIG_LIST(ID_UPPER) \ | |
281 | HW_DEV_ACQUISITION_START(ID_UPPER) \ | |
282 | SR_PRIV struct sr_dev_driver ID##_driver_info = { \ | |
283 | .name = NAME, \ | |
284 | .longname = LONGNAME, \ | |
285 | .api_version = 1, \ | |
286 | .init = init_##ID_UPPER, \ | |
287 | .cleanup = cleanup_##ID_UPPER, \ | |
288 | .scan = scan_##ID_UPPER, \ | |
289 | .dev_list = dev_list_##ID_UPPER, \ | |
290 | .dev_clear = dev_clear_##ID_UPPER, \ | |
291 | .config_get = NULL, \ | |
292 | .config_set = config_set, \ | |
293 | .config_list = config_list_##ID_UPPER, \ | |
294 | .dev_open = std_serial_dev_open, \ | |
295 | .dev_close = std_serial_dev_close, \ | |
296 | .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \ | |
297 | .dev_acquisition_stop = dev_acquisition_stop, \ | |
298 | .priv = NULL, \ | |
299 | }; | |
300 | ||
301 | DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581") | |
302 | DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583") |