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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 devopts[] = { | |
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 | return std_init(sr_ctx, mic_devs[idx].di, LOG_PREFIX); | |
60 | } | |
61 | ||
62 | static GSList *mic_scan(const char *conn, const char *serialcomm, int idx) | |
63 | { | |
64 | struct sr_dev_inst *sdi; | |
65 | struct drv_context *drvc; | |
66 | struct dev_context *devc; | |
67 | struct sr_channel *ch; | |
68 | struct sr_serial_dev_inst *serial; | |
69 | GSList *devices; | |
70 | ||
71 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
72 | return NULL; | |
73 | ||
74 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
75 | return NULL; | |
76 | ||
77 | drvc = mic_devs[idx].di->priv; | |
78 | devices = NULL; | |
79 | serial_flush(serial); | |
80 | ||
81 | /* TODO: Query device type. */ | |
82 | // ret = mic_cmd_get_device_info(serial); | |
83 | ||
84 | sr_info("Found device on port %s.", conn); | |
85 | ||
86 | /* TODO: Fill in version from protocol response. */ | |
87 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, mic_devs[idx].vendor, | |
88 | mic_devs[idx].device, NULL))) | |
89 | goto scan_cleanup; | |
90 | ||
91 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
92 | sr_err("Device context malloc failed."); | |
93 | goto scan_cleanup; | |
94 | } | |
95 | ||
96 | sdi->inst_type = SR_INST_SERIAL; | |
97 | sdi->conn = serial; | |
98 | ||
99 | sdi->priv = devc; | |
100 | sdi->driver = mic_devs[idx].di; | |
101 | ||
102 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "Temperature"))) | |
103 | goto scan_cleanup; | |
104 | sdi->channels = g_slist_append(sdi->channels, ch); | |
105 | ||
106 | if (mic_devs[idx].has_humidity) { | |
107 | if (!(ch = sr_channel_new(1, SR_CHANNEL_ANALOG, TRUE, "Humidity"))) | |
108 | goto scan_cleanup; | |
109 | sdi->channels = g_slist_append(sdi->channels, ch); | |
110 | } | |
111 | ||
112 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
113 | devices = g_slist_append(devices, sdi); | |
114 | ||
115 | scan_cleanup: | |
116 | serial_close(serial); | |
117 | ||
118 | return devices; | |
119 | } | |
120 | ||
121 | static GSList *scan(GSList *options, int idx) | |
122 | { | |
123 | struct sr_config *src; | |
124 | GSList *l, *devices; | |
125 | const char *conn, *serialcomm; | |
126 | ||
127 | conn = serialcomm = NULL; | |
128 | for (l = options; l; l = l->next) { | |
129 | src = l->data; | |
130 | switch (src->key) { | |
131 | case SR_CONF_CONN: | |
132 | conn = g_variant_get_string(src->data, NULL); | |
133 | break; | |
134 | case SR_CONF_SERIALCOMM: | |
135 | serialcomm = g_variant_get_string(src->data, NULL); | |
136 | break; | |
137 | } | |
138 | } | |
139 | if (!conn) | |
140 | return NULL; | |
141 | ||
142 | if (serialcomm) { | |
143 | /* Use the provided comm specs. */ | |
144 | devices = mic_scan(conn, serialcomm, idx); | |
145 | } else { | |
146 | /* Try the default. */ | |
147 | devices = mic_scan(conn, mic_devs[idx].conn, idx); | |
148 | } | |
149 | ||
150 | return devices; | |
151 | } | |
152 | ||
153 | static GSList *dev_list(int idx) | |
154 | { | |
155 | return ((struct drv_context *)(mic_devs[idx].di->priv))->instances; | |
156 | } | |
157 | ||
158 | static int cleanup(int idx) | |
159 | { | |
160 | return dev_clear(idx); | |
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 | ||
168 | (void)cg; | |
169 | ||
170 | if (sdi->status != SR_ST_ACTIVE) | |
171 | return SR_ERR_DEV_CLOSED; | |
172 | ||
173 | devc = sdi->priv; | |
174 | ||
175 | switch (key) { | |
176 | case SR_CONF_LIMIT_SAMPLES: | |
177 | devc->limit_samples = g_variant_get_uint64(data); | |
178 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
179 | devc->limit_samples); | |
180 | break; | |
181 | case SR_CONF_LIMIT_MSEC: | |
182 | devc->limit_msec = g_variant_get_uint64(data); | |
183 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
184 | devc->limit_msec); | |
185 | break; | |
186 | default: | |
187 | return SR_ERR_NA; | |
188 | } | |
189 | ||
190 | return SR_OK; | |
191 | } | |
192 | ||
193 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
194 | const struct sr_channel_group *cg) | |
195 | { | |
196 | (void)sdi; | |
197 | (void)cg; | |
198 | ||
199 | switch (key) { | |
200 | case SR_CONF_SCAN_OPTIONS: | |
201 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
202 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
203 | break; | |
204 | case SR_CONF_DEVICE_OPTIONS: | |
205 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
206 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
207 | break; | |
208 | default: | |
209 | return SR_ERR_NA; | |
210 | } | |
211 | ||
212 | return SR_OK; | |
213 | } | |
214 | ||
215 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
216 | void *cb_data, int idx) | |
217 | { | |
218 | struct dev_context *devc; | |
219 | struct sr_serial_dev_inst *serial; | |
220 | ||
221 | if (sdi->status != SR_ST_ACTIVE) | |
222 | return SR_ERR_DEV_CLOSED; | |
223 | ||
224 | devc = sdi->priv; | |
225 | devc->cb_data = cb_data; | |
226 | devc->num_samples = 0; | |
227 | devc->starttime = g_get_monotonic_time(); | |
228 | ||
229 | /* Send header packet to the session bus. */ | |
230 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
231 | ||
232 | /* Poll every 100ms, or whenever some data comes in. */ | |
233 | serial = sdi->conn; | |
234 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
235 | mic_devs[idx].receive_data, (void *)sdi); | |
236 | ||
237 | return SR_OK; | |
238 | } | |
239 | ||
240 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
241 | { | |
242 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, | |
243 | sdi->conn, LOG_PREFIX); | |
244 | } | |
245 | ||
246 | /* Driver-specific API function wrappers */ | |
247 | #define HW_INIT(X) \ | |
248 | static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); } | |
249 | #define HW_CLEANUP(X) \ | |
250 | static int cleanup_##X(void) { return cleanup(X); } | |
251 | #define HW_SCAN(X) \ | |
252 | static GSList *scan_##X(GSList *options) { return scan(options, X); } | |
253 | #define HW_DEV_LIST(X) \ | |
254 | static GSList *dev_list_##X(void) { return dev_list(X); } | |
255 | #define HW_DEV_CLEAR(X) \ | |
256 | static int dev_clear_##X(void) { return dev_clear(X); } | |
257 | #define HW_DEV_ACQUISITION_START(X) \ | |
258 | static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \ | |
259 | void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); } | |
260 | ||
261 | /* Driver structs and API function wrappers */ | |
262 | #define DRV(ID, ID_UPPER, NAME, LONGNAME) \ | |
263 | HW_INIT(ID_UPPER) \ | |
264 | HW_CLEANUP(ID_UPPER) \ | |
265 | HW_SCAN(ID_UPPER) \ | |
266 | HW_DEV_LIST(ID_UPPER) \ | |
267 | HW_DEV_CLEAR(ID_UPPER) \ | |
268 | HW_DEV_ACQUISITION_START(ID_UPPER) \ | |
269 | SR_PRIV struct sr_dev_driver ID##_driver_info = { \ | |
270 | .name = NAME, \ | |
271 | .longname = LONGNAME, \ | |
272 | .api_version = 1, \ | |
273 | .init = init_##ID_UPPER, \ | |
274 | .cleanup = cleanup_##ID_UPPER, \ | |
275 | .scan = scan_##ID_UPPER, \ | |
276 | .dev_list = dev_list_##ID_UPPER, \ | |
277 | .dev_clear = dev_clear_##ID_UPPER, \ | |
278 | .config_get = NULL, \ | |
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_##ID_UPPER, \ | |
284 | .dev_acquisition_stop = dev_acquisition_stop, \ | |
285 | .priv = NULL, \ | |
286 | }; | |
287 | ||
288 | DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581") | |
289 | DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583") |