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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_CONTINUOUS, | |
31 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
32 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
33 | }; | |
34 | ||
35 | static const char *channel_names[] = { | |
36 | "T1", "T2", "T3", "T4", | |
37 | NULL, | |
38 | }; | |
39 | ||
40 | SR_PRIV struct sr_dev_driver center_309_driver_info; | |
41 | SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info; | |
42 | ||
43 | SR_PRIV const struct center_dev_info center_devs[] = { | |
44 | { | |
45 | "Center", "309", "9600/8n1", 4, 32000, 45, | |
46 | center_3xx_packet_valid, | |
47 | ¢er_309_driver_info, receive_data_CENTER_309, | |
48 | }, | |
49 | { | |
50 | "Voltcraft", "K204", "9600/8n1", 4, 32000, 45, | |
51 | center_3xx_packet_valid, | |
52 | &voltcraft_k204_driver_info, receive_data_VOLTCRAFT_K204, | |
53 | }, | |
54 | }; | |
55 | ||
56 | static int dev_clear(int idx) | |
57 | { | |
58 | return std_dev_clear(center_devs[idx].di, NULL); | |
59 | } | |
60 | ||
61 | static int init(struct sr_context *sr_ctx, int idx) | |
62 | { | |
63 | return std_init(sr_ctx, center_devs[idx].di, LOG_PREFIX); | |
64 | } | |
65 | ||
66 | static GSList *center_scan(const char *conn, const char *serialcomm, int idx) | |
67 | { | |
68 | int i; | |
69 | struct sr_dev_inst *sdi; | |
70 | struct drv_context *drvc; | |
71 | struct dev_context *devc; | |
72 | struct sr_channel *ch; | |
73 | struct sr_serial_dev_inst *serial; | |
74 | GSList *devices; | |
75 | ||
76 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
77 | return NULL; | |
78 | ||
79 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
80 | return NULL; | |
81 | ||
82 | drvc = center_devs[idx].di->priv; | |
83 | devices = NULL; | |
84 | serial_flush(serial); | |
85 | ||
86 | sr_info("Found device on port %s.", conn); | |
87 | ||
88 | if (!(sdi = sr_dev_inst_new(SR_ST_INACTIVE, center_devs[idx].vendor, | |
89 | center_devs[idx].device, NULL))) | |
90 | goto scan_cleanup; | |
91 | ||
92 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
93 | sr_err("Device context malloc failed."); | |
94 | goto scan_cleanup; | |
95 | } | |
96 | ||
97 | sdi->inst_type = SR_INST_SERIAL; | |
98 | sdi->conn = serial; | |
99 | ||
100 | sdi->priv = devc; | |
101 | sdi->driver = center_devs[idx].di; | |
102 | ||
103 | for (i = 0; i < center_devs[idx].num_channels; i++) { | |
104 | if (!(ch = sr_channel_new(i, SR_CHANNEL_ANALOG, | |
105 | TRUE, channel_names[i]))) | |
106 | goto scan_cleanup; | |
107 | sdi->channels = g_slist_append(sdi->channels, ch); | |
108 | } | |
109 | ||
110 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
111 | devices = g_slist_append(devices, sdi); | |
112 | ||
113 | scan_cleanup: | |
114 | serial_close(serial); | |
115 | ||
116 | return devices; | |
117 | } | |
118 | ||
119 | static GSList *scan(GSList *options, int idx) | |
120 | { | |
121 | struct sr_config *src; | |
122 | GSList *l, *devices; | |
123 | const char *conn, *serialcomm; | |
124 | ||
125 | conn = serialcomm = NULL; | |
126 | for (l = options; l; l = l->next) { | |
127 | src = l->data; | |
128 | switch (src->key) { | |
129 | case SR_CONF_CONN: | |
130 | conn = g_variant_get_string(src->data, NULL); | |
131 | break; | |
132 | case SR_CONF_SERIALCOMM: | |
133 | serialcomm = g_variant_get_string(src->data, NULL); | |
134 | break; | |
135 | } | |
136 | } | |
137 | if (!conn) | |
138 | return NULL; | |
139 | ||
140 | if (serialcomm) { | |
141 | /* Use the provided comm specs. */ | |
142 | devices = center_scan(conn, serialcomm, idx); | |
143 | } else { | |
144 | /* Try the default. */ | |
145 | devices = center_scan(conn, center_devs[idx].conn, idx); | |
146 | } | |
147 | ||
148 | return devices; | |
149 | } | |
150 | ||
151 | static GSList *dev_list(int idx) | |
152 | { | |
153 | return ((struct drv_context *)(center_devs[idx].di->priv))->instances; | |
154 | } | |
155 | ||
156 | static int cleanup(int idx) | |
157 | { | |
158 | return dev_clear(idx); | |
159 | } | |
160 | ||
161 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
162 | const struct sr_channel_group *cg) | |
163 | { | |
164 | struct dev_context *devc; | |
165 | ||
166 | (void)cg; | |
167 | ||
168 | if (sdi->status != SR_ST_ACTIVE) | |
169 | return SR_ERR_DEV_CLOSED; | |
170 | ||
171 | devc = sdi->priv; | |
172 | ||
173 | switch (key) { | |
174 | case SR_CONF_LIMIT_SAMPLES: | |
175 | if (g_variant_get_uint64(data) == 0) | |
176 | return SR_ERR_ARG; | |
177 | devc->limit_samples = g_variant_get_uint64(data); | |
178 | break; | |
179 | case SR_CONF_LIMIT_MSEC: | |
180 | if (g_variant_get_uint64(data) == 0) | |
181 | return SR_ERR_ARG; | |
182 | devc->limit_msec = g_variant_get_uint64(data); | |
183 | break; | |
184 | default: | |
185 | return SR_ERR_NA; | |
186 | } | |
187 | ||
188 | return SR_OK; | |
189 | } | |
190 | ||
191 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
192 | const struct sr_channel_group *cg) | |
193 | { | |
194 | (void)sdi; | |
195 | (void)cg; | |
196 | ||
197 | switch (key) { | |
198 | case SR_CONF_SCAN_OPTIONS: | |
199 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
200 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
201 | break; | |
202 | case SR_CONF_DEVICE_OPTIONS: | |
203 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
204 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
205 | break; | |
206 | default: | |
207 | return SR_ERR_NA; | |
208 | } | |
209 | ||
210 | return SR_OK; | |
211 | } | |
212 | ||
213 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
214 | void *cb_data, int idx) | |
215 | { | |
216 | struct dev_context *devc; | |
217 | struct sr_serial_dev_inst *serial; | |
218 | ||
219 | if (sdi->status != SR_ST_ACTIVE) | |
220 | return SR_ERR_DEV_CLOSED; | |
221 | ||
222 | devc = sdi->priv; | |
223 | devc->cb_data = cb_data; | |
224 | devc->num_samples = 0; | |
225 | devc->starttime = g_get_monotonic_time(); | |
226 | ||
227 | /* Send header packet to the session bus. */ | |
228 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
229 | ||
230 | /* Poll every 500ms, or whenever some data comes in. */ | |
231 | serial = sdi->conn; | |
232 | serial_source_add(sdi->session, serial, G_IO_IN, 500, | |
233 | center_devs[idx].receive_data, (void *)sdi); | |
234 | ||
235 | return SR_OK; | |
236 | } | |
237 | ||
238 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
239 | { | |
240 | return std_serial_dev_acquisition_stop(sdi, cb_data, | |
241 | std_serial_dev_close, sdi->conn, LOG_PREFIX); | |
242 | } | |
243 | ||
244 | /* Driver-specific API function wrappers */ | |
245 | #define HW_INIT(X) \ | |
246 | static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); } | |
247 | #define HW_CLEANUP(X) \ | |
248 | static int cleanup_##X(void) { return cleanup(X); } | |
249 | #define HW_SCAN(X) \ | |
250 | static GSList *scan_##X(GSList *options) { return scan(options, X); } | |
251 | #define HW_DEV_LIST(X) \ | |
252 | static GSList *dev_list_##X(void) { return dev_list(X); } | |
253 | #define HW_DEV_CLEAR(X) \ | |
254 | static int dev_clear_##X(void) { return dev_clear(X); } | |
255 | #define HW_DEV_ACQUISITION_START(X) \ | |
256 | static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \ | |
257 | void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); } | |
258 | ||
259 | /* Driver structs and API function wrappers */ | |
260 | #define DRV(ID, ID_UPPER, NAME, LONGNAME) \ | |
261 | HW_INIT(ID_UPPER) \ | |
262 | HW_CLEANUP(ID_UPPER) \ | |
263 | HW_SCAN(ID_UPPER) \ | |
264 | HW_DEV_LIST(ID_UPPER) \ | |
265 | HW_DEV_CLEAR(ID_UPPER) \ | |
266 | HW_DEV_ACQUISITION_START(ID_UPPER) \ | |
267 | SR_PRIV struct sr_dev_driver ID##_driver_info = { \ | |
268 | .name = NAME, \ | |
269 | .longname = LONGNAME, \ | |
270 | .api_version = 1, \ | |
271 | .init = init_##ID_UPPER, \ | |
272 | .cleanup = cleanup_##ID_UPPER, \ | |
273 | .scan = scan_##ID_UPPER, \ | |
274 | .dev_list = dev_list_##ID_UPPER, \ | |
275 | .dev_clear = dev_clear_##ID_UPPER, \ | |
276 | .config_get = NULL, \ | |
277 | .config_set = config_set, \ | |
278 | .config_list = config_list, \ | |
279 | .dev_open = std_serial_dev_open, \ | |
280 | .dev_close = std_serial_dev_close, \ | |
281 | .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \ | |
282 | .dev_acquisition_stop = dev_acquisition_stop, \ | |
283 | .priv = NULL, \ | |
284 | }; | |
285 | ||
286 | DRV(center_309, CENTER_309, "center-309", "Center 309") | |
287 | DRV(voltcraft_k204, VOLTCRAFT_K204, "voltcraft-k204", "Voltcraft K204") |