2 * This file is part of the sigrok project.
4 * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
20 #ifndef SIGROK_SIGROK_H
21 #define SIGROK_SIGROK_H
31 * Status/error codes returned by libsigrok functions.
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.
37 * The error codes are globally unique in libsigrok, i.e. if one of the
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".
40 * There must be no functions which indicate two different errors via the
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.
47 #define SIGROK_OK 0 /* No error */
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 */
52 /* limited by uint64_t */
53 #define MAX_NUM_PROBES 64
54 #define MAX_PROBENAME_LEN 32
57 /* Handy little macros */
58 #define KHZ(n) ((n) * 1000)
59 #define MHZ(n) ((n) * 1000000)
60 #define GHZ(n) ((n) * 1000000000)
62 #define HZ_TO_NS(n) (1000000000 / (n))
65 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
68 #ifndef ARRAY_AND_SIZE
69 #define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
72 /* Data types, used by hardware plugins for set_configuration() */
82 /* (Unused) protocol decoder stack entry */
93 /* datafeed_packet.type values */
103 struct datafeed_packet {
110 struct datafeed_header {
112 struct timeval starttime;
115 int num_analog_probes;
116 int num_logic_probes;
123 struct input_format *format;
128 struct input_format {
131 int (*format_match) (const char *filename);
132 int (*in_loadfile) (const char *filename);
135 struct input_format **input_list(void);
142 struct output_format *format;
143 struct device *device;
148 struct output_format {
152 int (*init) (struct output *o);
153 int (*data) (struct output *o, char *data_in, uint64_t length_in,
154 char **data_out, uint64_t *length_out);
155 int (*event) (struct output *o, int event_type, char **data_out,
156 uint64_t *length_out);
159 struct output_format **output_list(void);
162 int filter_probes(int in_unitsize, int out_unitsize, int *probelist,
163 char *data_in, uint64_t length_in, char **data_out,
164 uint64_t *length_out);
166 char *sigrok_samplerate_string(uint64_t samplerate);
167 char *sigrok_period_string(uint64_t frequency);
169 /*--- analyzer.c ------------------------------------------------------------*/
175 * TODO: Parameters? If so, configured plugins need another struct.
176 * TODO: Input and output format?
180 /*--- backend.c -------------------------------------------------------------*/
182 int sigrok_init(void);
183 void sigrok_cleanup(void);
185 /*--- datastore.c -----------------------------------------------------------*/
187 /* Size of a chunk in units */
188 #define DATASTORE_CHUNKSIZE 512000
191 /* Size in bytes of the number of units stored in this datastore */
193 unsigned int num_units; /* TODO: uint64_t */
197 int datastore_new(int unitsize, struct datastore **ds);
198 int datastore_destroy(struct datastore *ds);
199 void datastore_put(struct datastore *ds, void *data, unsigned int length,
200 int in_unitsize, int *probelist);
202 /*--- debug.c ---------------------------------------------------------------*/
204 void hexdump(unsigned char *address, int length);
206 /*--- device.c --------------------------------------------------------------*/
209 * This represents a generic device connected to the system.
210 * For device-specific information, ask the plugin. The plugin_index refers
211 * to the device index within that plugin; it may be handling more than one
212 * device. All relevant plugin calls take a device_index parameter for this.
215 /* Which plugin handles this device */
216 struct device_plugin *plugin;
217 /* A plugin may handle multiple devices of the same type */
219 /* List of struct probe* */
221 /* Data acquired by this device, if any */
222 struct datastore *datastore;
238 extern GSList *devices;
240 void device_scan(void);
241 void device_close_all(void);
242 GSList *device_list(void);
243 struct device *device_new(struct device_plugin *plugin, int plugin_index, int num_probes);
244 void device_clear(struct device *device);
245 void device_destroy(struct device *dev);
247 void device_probe_clear(struct device *device, int probenum);
248 void device_probe_add(struct device *device, char *name);
249 struct probe *probe_find(struct device *device, int probenum);
250 void device_probe_name(struct device *device, int probenum, char *name);
252 void device_trigger_clear(struct device *device);
253 void device_trigger_set(struct device *device, int probenum, char *trigger);
255 /*--- hwplugin.c ------------------------------------------------------------*/
257 /* Hardware plugin capabilities */
259 HWCAP_DUMMY, /* Used to terminate lists */
260 HWCAP_LOGIC_ANALYZER,
261 HWCAP_SAMPLERATE, /* Change samplerate */
262 HWCAP_PROBECONFIG, /* Configure probe mask */
263 HWCAP_CAPTURE_RATIO, /* Set pre/post-trigger capture ratio */
264 HWCAP_LIMIT_MSEC, /* Set a time limit for sample acquisition */
265 HWCAP_LIMIT_SAMPLES, /* Set a limit on number of samples */
268 struct hwcap_option {
275 struct sigrok_device_instance {
284 struct usb_device_instance *usb;
285 struct serial_device_instance *serial;
289 /* sigrok_device_instance types */
295 struct usb_device_instance {
298 struct libusb_device_handle *devhdl;
301 struct serial_device_instance {
306 /* Device instance status */
309 /* Found, but still booting */
311 /* Live, but not in use */
313 /* Actively in use in a session */
318 * TODO: This sucks, you just kinda have to "know" the returned type.
319 * TODO: Need a DI to return the number of trigger stages supported.
322 /* Device info IDs */
324 /* struct sigrok_device_instance for this specific device */
326 /* The number of probes connected to this device */
328 /* Samplerates supported by this device, (struct samplerates) */
330 /* Types of trigger supported, out of "01crf" (char *) */
332 /* The currently set samplerate in Hz (uint64_t) */
337 * A device supports either a range of samplerates with steps of a given
338 * granularity, or is limited to a set of defined samplerates. Use either
339 * step or list, but not both.
348 struct device_plugin {
349 /* Plugin-specific */
352 int (*init) (char *deviceinfo);
353 void (*cleanup) (void);
355 /* Device-specific */
356 int (*open) (int device_index);
357 void (*close) (int device_index);
358 void *(*get_device_info) (int device_index, int device_info_id);
359 int (*get_status) (int device_index);
360 int *(*get_capabilities) (void);
361 int (*set_configuration) (int device_index, int capability, void *value);
362 int (*start_acquisition) (int device_index, gpointer session_device_id);
363 void (*stop_acquisition) (int device_index, gpointer session_device_id);
369 /* Not really using this */
370 GSource *timeout_source;
373 typedef int (*receive_data_callback) (int fd, int revents, void *user_data);
375 int load_hwplugins(void);
376 GSList *list_hwplugins(void);
378 /* Generic device instances */
379 struct sigrok_device_instance *sigrok_device_instance_new(int index,
380 int status, const char *vendor, const char *model, const char *version);
381 struct sigrok_device_instance *get_sigrok_device_instance(
382 GSList *device_instances, int device_index);
383 void sigrok_device_instance_free(struct sigrok_device_instance *sdi);
385 /* USB-specific instances */
386 struct usb_device_instance *usb_device_instance_new(uint8_t bus,
387 uint8_t address, struct libusb_device_handle *hdl);
388 void usb_device_instance_free(struct usb_device_instance *usb);
390 /* Serial-specific instances */
391 struct serial_device_instance *serial_device_instance_new(
392 const char *port, int fd);
393 void serial_device_instance_free(struct serial_device_instance *serial);
395 int find_hwcap(int *capabilities, int hwcap);
396 struct hwcap_option *find_hwcap_option(int hwcap);
397 void source_remove(int fd);
398 void source_add(int fd, int events, int timeout, receive_data_callback rcv_cb,
401 /*--- session.c -------------------------------------------------------------*/
403 typedef void (*source_callback_remove) (int fd);
404 typedef void (*source_callback_add) (int fd, int events, int timeout,
405 receive_data_callback callback, void *user_data);
406 typedef void (*datafeed_callback) (struct device *device,
407 struct datafeed_packet *packet);
410 /* List of struct device* */
412 /* List of struct analyzer* */
414 /* Datafeed callbacks */
415 GSList *datafeed_callbacks;
420 struct session *session_load(const char *filename);
421 struct session *session_new(void);
422 void session_destroy(void);
423 void session_device_clear(void);
424 int session_device_add(struct device *device);
426 /* Protocol analyzers setup */
427 void session_pa_clear(void);
428 void session_pa_add(struct analyzer *pa);
431 void session_datafeed_callback_clear(void);
432 void session_datafeed_callback_add(datafeed_callback callback);
434 /* Session control */
435 int session_start(void);
436 void session_stop(void);
437 void session_bus(struct device *device, struct datafeed_packet *packet);
438 void make_metadata(char *filename);
439 int session_save(char *filename);
441 /*--- hwcommon.c ------------------------------------------------------------*/
443 int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
444 int ezusb_install_firmware(libusb_device_handle *hdl, char *filename);
445 int ezusb_upload_firmware(libusb_device *dev, int configuration,
446 const char *filename);
448 GSList *list_serial_ports(void);
449 int serial_open(const char *pathname, int flags);
450 int serial_close(int fd);
451 int serial_flush(int fd);
452 void *serial_backup_params(int fd);
453 void serial_restore_params(int fd, void *backup);
454 int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
457 /* libsigrok/hardware/common/misc.c */
458 /* TODO: Should not be public. */
459 int opendev2(int device_index, struct sigrok_device_instance **sdi,
460 libusb_device *dev, struct libusb_device_descriptor *des,
461 int *skip, uint16_t vid, uint16_t pid, int interface);
462 int opendev3(struct sigrok_device_instance **sdi, libusb_device *dev,
463 struct libusb_device_descriptor *des,
464 uint16_t vid, uint16_t pid, int interface);