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a1bb33af UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
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 | #ifndef SIGROK_SIGROK_H | |
21 | #define SIGROK_SIGROK_H | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <sys/time.h> | |
25 | #include <stdint.h> | |
26 | #include <inttypes.h> | |
27 | #include <glib.h> | |
28 | #include <libusb.h> | |
29 | ||
e31b636d UH |
30 | /* |
31 | * Status/error codes returned by libsigrok functions. | |
32 | * | |
33 | * All possible return codes of libsigrok functions must be listed here. | |
34 | * Functions should never return hardcoded numbers as status, but rather | |
35 | * use these #defines instead. All error codes are negative numbers. | |
36 | * | |
37 | * The error codes are globally unique in libsigrok, i.e. if one of the | |
2b3414a4 UH |
38 | * libsigrok functions returns a "malloc error" it must be exactly the same |
39 | * return value as used by all other functions to indicate "malloc error". | |
e31b636d UH |
40 | * There must be no functions which indicate two different errors via the |
41 | * same return code. | |
42 | * | |
43 | * Also, for compatibility reasons, no defined return codes are ever removed | |
44 | * or reused for different #defines later. You can only add new #defines and | |
45 | * return codes, but never remove or redefine existing ones. | |
46 | */ | |
2b3414a4 | 47 | #define SIGROK_OK 0 /* No error */ |
e31b636d UH |
48 | #define SIGROK_ERR -1 /* Generic/unspecified error */ |
49 | #define SIGROK_ERR_MALLOC -2 /* Malloc/calloc/realloc error */ | |
50 | #define SIGROK_ERR_SAMPLERATE -3 /* Incorrect samplerate */ | |
a1bb33af | 51 | |
2a3f9541 BV |
52 | /* limited by uint64_t */ |
53 | #define MAX_NUM_PROBES 64 | |
54 | #define MAX_PROBENAME_LEN 32 | |
55 | ||
56 | ||
a1bb33af | 57 | /* Handy little macros */ |
d86dc674 UH |
58 | #define KHZ(n) ((n) * 1000) |
59 | #define MHZ(n) ((n) * 1000000) | |
60 | #define GHZ(n) ((n) * 1000000000) | |
a1bb33af | 61 | |
fdd20b52 UH |
62 | #ifndef ARRAY_SIZE |
63 | #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) | |
64 | #endif | |
65 | ||
dfa4b731 DR |
66 | #ifndef ARRAY_AND_SIZE |
67 | #define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a) | |
68 | #endif | |
69 | ||
a1bb33af UH |
70 | /* Data types, used by hardware plugins for set_configuration() */ |
71 | enum { | |
72 | T_UINT64, | |
73 | T_CHAR, | |
74 | }; | |
75 | ||
76 | enum { | |
77 | PROTO_RAW, | |
78 | }; | |
79 | ||
80 | /* (Unused) protocol decoder stack entry */ | |
81 | struct protocol { | |
82 | char *name; | |
83 | int id; | |
84 | int stackindex; | |
85 | }; | |
86 | ||
87 | /* | |
1b452b85 | 88 | * Datafeed |
a1bb33af UH |
89 | */ |
90 | ||
91 | /* datafeed_packet.type values */ | |
92 | enum { | |
93 | DF_HEADER, | |
94 | DF_END, | |
95 | DF_TRIGGER, | |
4c046c6b | 96 | DF_LOGIC, |
1437e893 | 97 | DF_ANALOG, |
4c046c6b | 98 | DF_PD, |
a1bb33af UH |
99 | }; |
100 | ||
101 | struct datafeed_packet { | |
102 | uint16_t type; | |
e1aac231 | 103 | uint64_t length; |
4c046c6b | 104 | uint16_t unitsize; |
a1bb33af UH |
105 | void *payload; |
106 | }; | |
107 | ||
108 | struct datafeed_header { | |
109 | int feed_version; | |
110 | struct timeval starttime; | |
4c100f32 | 111 | uint64_t samplerate; |
a1bb33af UH |
112 | int protocol_id; |
113 | int num_probes; | |
114 | }; | |
115 | ||
34e4813f BV |
116 | /* |
117 | * Input | |
118 | */ | |
119 | struct input { | |
120 | struct input_format *format; | |
121 | void *param; | |
122 | void *internal; | |
123 | }; | |
124 | ||
125 | struct input_format { | |
126 | char *extension; | |
127 | char *description; | |
757b8c62 UH |
128 | int (*format_match) (const char *filename); |
129 | int (*in_loadfile) (const char *filename); | |
34e4813f BV |
130 | }; |
131 | ||
132 | struct input_format **input_list(void); | |
133 | ||
134 | ||
a1bb33af | 135 | /* |
1b452b85 | 136 | * Output |
a1bb33af UH |
137 | */ |
138 | struct output { | |
139 | struct output_format *format; | |
140 | struct device *device; | |
141 | char *param; | |
142 | void *internal; | |
143 | }; | |
144 | ||
145 | struct output_format { | |
146 | char *extension; | |
147 | char *description; | |
f0411b1d | 148 | int df_type; |
5a8fda15 | 149 | int (*init) (struct output *o); |
a1bb33af UH |
150 | int (*data) (struct output *o, char *data_in, uint64_t length_in, |
151 | char **data_out, uint64_t *length_out); | |
152 | int (*event) (struct output *o, int event_type, char **data_out, | |
153 | uint64_t *length_out); | |
154 | }; | |
155 | ||
156 | struct output_format **output_list(void); | |
34e4813f BV |
157 | |
158 | ||
a1bb33af UH |
159 | int filter_probes(int in_unitsize, int out_unitsize, int *probelist, |
160 | char *data_in, uint64_t length_in, char **data_out, | |
161 | uint64_t *length_out); | |
162 | ||
25e7d9b1 | 163 | char *sigrok_samplerate_string(uint64_t samplerate); |
2a3f9541 | 164 | char *sigrok_period_string(uint64_t frequency); |
25e7d9b1 | 165 | |
a1bb33af UH |
166 | /*--- analyzer.c ------------------------------------------------------------*/ |
167 | ||
168 | struct analyzer { | |
169 | char *name; | |
170 | char *filename; | |
171 | /* | |
172 | * TODO: Parameters? If so, configured plugins need another struct. | |
173 | * TODO: Input and output format? | |
174 | */ | |
175 | }; | |
176 | ||
177 | /*--- backend.c -------------------------------------------------------------*/ | |
178 | ||
179 | int sigrok_init(void); | |
180 | void sigrok_cleanup(void); | |
181 | ||
182 | /*--- datastore.c -----------------------------------------------------------*/ | |
183 | ||
184 | /* Size of a chunk in units */ | |
185 | #define DATASTORE_CHUNKSIZE 512000 | |
186 | ||
187 | struct datastore { | |
188 | /* Size in bytes of the number of units stored in this datastore */ | |
189 | int ds_unitsize; | |
33247d6a | 190 | unsigned int num_units; /* TODO: uint64_t */ |
a1bb33af UH |
191 | GSList *chunklist; |
192 | }; | |
193 | ||
2aebf78d | 194 | int datastore_new(int unitsize, struct datastore **ds); |
33247d6a | 195 | int datastore_destroy(struct datastore *ds); |
a1bb33af UH |
196 | void datastore_put(struct datastore *ds, void *data, unsigned int length, |
197 | int in_unitsize, int *probelist); | |
198 | ||
199 | /*--- debug.c ---------------------------------------------------------------*/ | |
200 | ||
201 | void hexdump(unsigned char *address, int length); | |
202 | ||
203 | /*--- device.c --------------------------------------------------------------*/ | |
204 | ||
205 | /* | |
206 | * This represents a generic device connected to the system. | |
207 | * For device-specific information, ask the plugin. The plugin_index refers | |
208 | * to the device index within that plugin; it may be handling more than one | |
209 | * device. All relevant plugin calls take a device_index parameter for this. | |
210 | */ | |
211 | struct device { | |
212 | /* Which plugin handles this device */ | |
213 | struct device_plugin *plugin; | |
214 | /* A plugin may handle multiple devices of the same type */ | |
215 | int plugin_index; | |
216 | /* List of struct probe* */ | |
217 | GSList *probes; | |
218 | /* Data acquired by this device, if any */ | |
219 | struct datastore *datastore; | |
220 | }; | |
221 | ||
222 | struct probe { | |
223 | int index; | |
224 | gboolean enabled; | |
225 | char *name; | |
226 | char *trigger; | |
227 | }; | |
228 | ||
229 | extern GSList *devices; | |
230 | ||
231 | void device_scan(void); | |
232 | void device_close_all(void); | |
233 | GSList *device_list(void); | |
873080cc | 234 | struct device *device_new(struct device_plugin *plugin, int plugin_index, int num_probes); |
a1bb33af UH |
235 | void device_clear(struct device *device); |
236 | void device_destroy(struct device *dev); | |
237 | ||
238 | void device_probe_clear(struct device *device, int probenum); | |
239 | void device_probe_add(struct device *device, char *name); | |
240 | struct probe *probe_find(struct device *device, int probenum); | |
241 | void device_probe_name(struct device *device, int probenum, char *name); | |
242 | ||
243 | void device_trigger_clear(struct device *device); | |
244 | void device_trigger_set(struct device *device, int probenum, char *trigger); | |
245 | ||
246 | /*--- hwplugin.c ------------------------------------------------------------*/ | |
247 | ||
248 | /* Hardware plugin capabilities */ | |
249 | enum { | |
1b452b85 | 250 | HWCAP_DUMMY, /* Used to terminate lists */ |
a1bb33af | 251 | HWCAP_LOGIC_ANALYZER, |
1b452b85 UH |
252 | HWCAP_SAMPLERATE, /* Change samplerate */ |
253 | HWCAP_PROBECONFIG, /* Configure probe mask */ | |
a803c0db | 254 | HWCAP_CAPTURE_RATIO, /* Set pre/post-trigger capture ratio */ |
1b452b85 UH |
255 | HWCAP_LIMIT_MSEC, /* Set a time limit for sample acquisition */ |
256 | HWCAP_LIMIT_SAMPLES, /* Set a limit on number of samples */ | |
a1bb33af UH |
257 | }; |
258 | ||
259 | struct hwcap_option { | |
260 | int capability; | |
261 | int type; | |
262 | char *description; | |
263 | char *shortname; | |
264 | }; | |
265 | ||
266 | struct sigrok_device_instance { | |
267 | int index; | |
268 | int status; | |
269 | int instance_type; | |
270 | char *vendor; | |
271 | char *model; | |
272 | char *version; | |
8d672550 | 273 | void *priv; |
a1bb33af UH |
274 | union { |
275 | struct usb_device_instance *usb; | |
276 | struct serial_device_instance *serial; | |
277 | }; | |
278 | }; | |
279 | ||
280 | /* sigrok_device_instance types */ | |
281 | enum { | |
282 | USB_INSTANCE, | |
283 | SERIAL_INSTANCE, | |
284 | }; | |
285 | ||
286 | struct usb_device_instance { | |
287 | uint8_t bus; | |
288 | uint8_t address; | |
289 | struct libusb_device_handle *devhdl; | |
290 | }; | |
291 | ||
292 | struct serial_device_instance { | |
293 | char *port; | |
294 | int fd; | |
295 | }; | |
296 | ||
297 | /* Device instance status */ | |
298 | enum { | |
299 | ST_NOT_FOUND, | |
300 | /* Found, but still booting */ | |
301 | ST_INITIALIZING, | |
302 | /* Live, but not in use */ | |
303 | ST_INACTIVE, | |
304 | /* Actively in use in a session */ | |
305 | ST_ACTIVE, | |
306 | }; | |
307 | ||
308 | /* | |
309 | * TODO: This sucks, you just kinda have to "know" the returned type. | |
310 | * TODO: Need a DI to return the number of trigger stages supported. | |
311 | */ | |
312 | ||
313 | /* Device info IDs */ | |
314 | enum { | |
315 | /* struct sigrok_device_instance for this specific device */ | |
316 | DI_INSTANCE, | |
317 | /* The number of probes connected to this device */ | |
318 | DI_NUM_PROBES, | |
4c100f32 | 319 | /* Samplerates supported by this device, (struct samplerates) */ |
a1bb33af UH |
320 | DI_SAMPLERATES, |
321 | /* Types of trigger supported, out of "01crf" (char *) */ | |
322 | DI_TRIGGER_TYPES, | |
4c100f32 UH |
323 | /* The currently set samplerate in Hz (uint64_t) */ |
324 | DI_CUR_SAMPLERATE, | |
a1bb33af UH |
325 | }; |
326 | ||
1b452b85 UH |
327 | /* |
328 | * A device supports either a range of samplerates with steps of a given | |
329 | * granularity, or is limited to a set of defined samplerates. Use either | |
a1bb33af UH |
330 | * step or list, but not both. |
331 | */ | |
332 | struct samplerates { | |
333 | uint64_t low; | |
334 | uint64_t high; | |
335 | uint64_t step; | |
336 | uint64_t *list; | |
337 | }; | |
338 | ||
339 | struct device_plugin { | |
1b452b85 | 340 | /* Plugin-specific */ |
a1bb33af UH |
341 | char *name; |
342 | int api_version; | |
343 | int (*init) (char *deviceinfo); | |
344 | void (*cleanup) (void); | |
345 | ||
1b452b85 | 346 | /* Device-specific */ |
a1bb33af UH |
347 | int (*open) (int device_index); |
348 | void (*close) (int device_index); | |
349 | void *(*get_device_info) (int device_index, int device_info_id); | |
350 | int (*get_status) (int device_index); | |
351 | int *(*get_capabilities) (void); | |
352 | int (*set_configuration) (int device_index, int capability, void *value); | |
353 | int (*start_acquisition) (int device_index, gpointer session_device_id); | |
354 | void (*stop_acquisition) (int device_index, gpointer session_device_id); | |
355 | }; | |
356 | ||
357 | struct gsource_fd { | |
358 | GSource source; | |
359 | GPollFD gpfd; | |
360 | /* Not really using this */ | |
361 | GSource *timeout_source; | |
362 | }; | |
363 | ||
364 | typedef int (*receive_data_callback) (int fd, int revents, void *user_data); | |
365 | ||
366 | int load_hwplugins(void); | |
367 | GSList *list_hwplugins(void); | |
368 | ||
369 | /* Generic device instances */ | |
370 | struct sigrok_device_instance *sigrok_device_instance_new(int index, | |
49d0ce50 | 371 | int status, const char *vendor, const char *model, const char *version); |
1b452b85 UH |
372 | struct sigrok_device_instance *get_sigrok_device_instance( |
373 | GSList *device_instances, int device_index); | |
a1bb33af UH |
374 | void sigrok_device_instance_free(struct sigrok_device_instance *sdi); |
375 | ||
376 | /* USB-specific instances */ | |
377 | struct usb_device_instance *usb_device_instance_new(uint8_t bus, | |
378 | uint8_t address, struct libusb_device_handle *hdl); | |
379 | void usb_device_instance_free(struct usb_device_instance *usb); | |
380 | ||
381 | /* Serial-specific instances */ | |
49d0ce50 UH |
382 | struct serial_device_instance *serial_device_instance_new( |
383 | const char *port, int fd); | |
a1bb33af UH |
384 | void serial_device_instance_free(struct serial_device_instance *serial); |
385 | ||
386 | int find_hwcap(int *capabilities, int hwcap); | |
387 | struct hwcap_option *find_hwcap_option(int hwcap); | |
388 | void source_remove(int fd); | |
1b452b85 UH |
389 | void source_add(int fd, int events, int timeout, receive_data_callback rcv_cb, |
390 | void *user_data); | |
a1bb33af UH |
391 | |
392 | /*--- session.c -------------------------------------------------------------*/ | |
393 | ||
394 | typedef void (*source_callback_remove) (int fd); | |
395 | typedef void (*source_callback_add) (int fd, int events, int timeout, | |
396 | receive_data_callback callback, void *user_data); | |
397 | typedef void (*datafeed_callback) (struct device *device, | |
398 | struct datafeed_packet *packet); | |
399 | ||
400 | struct session { | |
401 | /* List of struct device* */ | |
402 | GSList *devices; | |
403 | /* List of struct analyzer* */ | |
404 | GSList *analyzers; | |
1b452b85 | 405 | /* Datafeed callbacks */ |
a1bb33af UH |
406 | GSList *datafeed_callbacks; |
407 | GTimeVal starttime; | |
408 | }; | |
409 | ||
410 | /* Session setup */ | |
afc8e4de | 411 | struct session *session_load(const char *filename); |
a1bb33af UH |
412 | struct session *session_new(void); |
413 | void session_destroy(void); | |
414 | void session_device_clear(void); | |
415 | int session_device_add(struct device *device); | |
416 | ||
417 | /* Protocol analyzers setup */ | |
418 | void session_pa_clear(void); | |
419 | void session_pa_add(struct analyzer *pa); | |
420 | ||
421 | /* Datafeed setup */ | |
422 | void session_datafeed_callback_clear(void); | |
423 | void session_datafeed_callback_add(datafeed_callback callback); | |
424 | ||
425 | /* Session control */ | |
426 | int session_start(void); | |
427 | void session_stop(void); | |
428 | void session_bus(struct device *device, struct datafeed_packet *packet); | |
429 | void make_metadata(char *filename); | |
430 | int session_save(char *filename); | |
431 | ||
432 | /*--- hwcommon.c ------------------------------------------------------------*/ | |
433 | ||
434 | int ezusb_reset(struct libusb_device_handle *hdl, int set_clear); | |
435 | int ezusb_install_firmware(libusb_device_handle *hdl, char *filename); | |
edf60d05 UH |
436 | int ezusb_upload_firmware(libusb_device *dev, int configuration, |
437 | const char *filename); | |
a1bb33af UH |
438 | |
439 | GSList *list_serial_ports(void); | |
d02a535e BV |
440 | int serial_open(const char *pathname, int flags); |
441 | int serial_close(int fd); | |
f0551a65 | 442 | int serial_flush(int fd); |
d02a535e BV |
443 | void *serial_backup_params(int fd); |
444 | void serial_restore_params(int fd, void *backup); | |
1b452b85 UH |
445 | int serial_set_params(int fd, int speed, int bits, int parity, int stopbits, |
446 | int flowcontrol); | |
a1bb33af | 447 | |
9a5c6dcf UH |
448 | /* libsigrok/hardware/common/misc.c */ |
449 | /* TODO: Should not be public. */ | |
450 | int opendev2(int device_index, struct sigrok_device_instance **sdi, | |
451 | libusb_device *dev, struct libusb_device_descriptor *des, | |
452 | int *skip, uint16_t vid, uint16_t pid, int interface); | |
453 | int opendev3(struct sigrok_device_instance **sdi, libusb_device *dev, | |
454 | struct libusb_device_descriptor *des, | |
455 | uint16_t vid, uint16_t pid, int interface); | |
456 | ||
a1bb33af | 457 | #endif |