/* * This file is part of the sigrok project. * * Copyright (C) 2010 Uwe Hermann * Copyright (C) 2012 Bert Vermeulen * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef LIBSIGROKDECODE_SIGROKDECODE_H #define LIBSIGROKDECODE_SIGROKDECODE_H #include /* First, so we avoid a _POSIX_C_SOURCE warning. */ #include #include #ifdef __cplusplus extern "C" { #endif /* * Status/error codes returned by libsigrokdecode functions. * * All possible return codes of libsigrokdecode functions must be listed here. * Functions should never return hardcoded numbers as status, but rather * use these #defines instead. All error codes are negative numbers. * * The error codes are globally unique in libsigrokdecode, i.e. if one of the * libsigrokdecode functions returns a "malloc error" it must be exactly the * same return value as used by all other functions to indicate "malloc error". * There must be no functions which indicate two different errors via the * same return code. * * Also, for compatibility reasons, no defined return codes are ever removed * or reused for different #defines later. You can only add new #defines and * return codes, but never remove or redefine existing ones. */ #define SRD_OK 0 /**< No error */ #define SRD_ERR -1 /**< Generic/unspecified error */ #define SRD_ERR_MALLOC -2 /**< Malloc/calloc/realloc error */ #define SRD_ERR_ARG -3 /**< Function argument error */ #define SRD_ERR_BUG -4 /**< Errors hinting at internal bugs */ #define SRD_ERR_PYTHON -5 /**< Python C API error */ #define SRD_ERR_DECODERS_DIR -6 /**< Protocol decoder path invalid */ /* libsigrokdecode loglevels. */ #define SRD_LOG_NONE 0 /**< Output no messages at all. */ #define SRD_LOG_ERR 1 /**< Output error messages. */ #define SRD_LOG_WARN 2 /**< Output warnings. */ #define SRD_LOG_INFO 3 /**< Output informational messages. */ #define SRD_LOG_DBG 4 /**< Output debug messages. */ #define SRD_LOG_SPEW 5 /**< Output very noisy debug messages. */ /* * Use SRD_API to mark public API symbols, and SRD_PRIV for private symbols. * * Variables and functions marked 'static' are private already and don't * need SR_PRIV. However, functions which are not static (because they need * to be used in other libsigrokdecode-internal files) but are also not * meant to be part of the public libsigrokdecode API, must use SRD_PRIV. * * This uses the 'visibility' feature of gcc (requires gcc >= 4.0). * * Details: http://gcc.gnu.org/wiki/Visibility */ /* Marks public libsigrokdecode API symbols. */ #define SRD_API __attribute__((visibility("default"))) /* Marks private, non-public libsigrokdecode symbols (not part of the API). */ #define SRD_PRIV __attribute__((visibility("hidden"))) /* * When adding an output type, don't forget to... * - expose it to PDs in controller.c:PyInit_sigrokdecode() * - add a check in module_sigrokdecode.c:Decoder_put() * - add a debug string in type_decoder.c:OUTPUT_TYPES */ enum { SRD_OUTPUT_ANN, SRD_OUTPUT_PROTO, SRD_OUTPUT_BINARY, }; #define SRD_MAX_NUM_PROBES 64 /* TODO: Documentation. */ struct srd_decoder { /** The decoder ID. Must be non-NULL and unique for all decoders. */ char *id; /** The (short) decoder name. */ char *name; /** The (long) decoder name. May be NULL. */ char *longname; /** A (short, one-line) description of the decoder. */ char *desc; /** The license of the decoder. Valid values: "gplv2+", "gplv3+". */ char *license; /** TODO */ GSList *inputformats; /** TODO */ GSList *outputformats; /** Probes */ GSList *probes; /** Optional probes */ GSList *opt_probes; /* * List of NULL-terminated char[], containing descriptions of the * supported annotation output. */ GSList *annotations; /** Python module */ PyObject *py_mod; /** sigrokdecode.Decoder class */ PyObject *py_dec; }; struct srd_probe { char *id; char *name; char *desc; int order; }; struct srd_decoder_inst { struct srd_decoder *decoder; PyObject *py_inst; char *inst_id; GSList *pd_output; int dec_num_probes; int *dec_probemap; int data_num_probes; int data_unitsize; uint64_t data_samplerate; GSList *next_di; }; struct srd_pd_output { int pdo_id; int output_type; struct srd_decoder_inst *di; char *proto_id; }; struct srd_proto_data { uint64_t start_sample; uint64_t end_sample; struct srd_pd_output *pdo; int ann_format; void *data; }; struct srd_pd_callback { int output_type; void (*callback)(struct srd_proto_data *); }; /* custom python types */ typedef struct { PyObject_HEAD } srd_Decoder; typedef struct { PyObject_HEAD struct srd_decoder_inst *di; uint64_t start_samplenum; unsigned int itercnt; uint8_t *inbuf; uint64_t inbuflen; PyObject *sample; } srd_logic; /*--- controller.c ----------------------------------------------------------*/ SRD_API int srd_init(void); SRD_API int srd_exit(void); SRD_API int set_modulepath(void); SRD_API int srd_inst_set_options(struct srd_decoder_inst *di, GHashTable *options); SRD_API int srd_inst_set_probes(struct srd_decoder_inst *di, GHashTable *probes); SRD_API struct srd_decoder_inst *srd_inst_new(const char *id, GHashTable *options); SRD_API int srd_inst_stack(struct srd_decoder_inst *di_from, struct srd_decoder_inst *di_to); SRD_API struct srd_decoder_inst *srd_inst_find_by_id(char *inst_id); SRD_API struct srd_decoder_inst *srd_inst_find_by_obj(GSList *stack, PyObject *obj); SRD_API int srd_inst_start(struct srd_decoder_inst *di, PyObject *args); SRD_API int srd_inst_decode(uint64_t start_samplenum, struct srd_decoder_inst *dec, uint8_t *inbuf, uint64_t inbuflen); SRD_API void srd_inst_free(struct srd_decoder_inst *di); SRD_API void srd_inst_free_all(GSList *stack); SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate); SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf, uint64_t inbuflen); SRD_API struct srd_decoder_inst *get_di_by_decobject(void *decobject); typedef void (*srd_pd_output_callback_t)(struct srd_proto_data *pdata); SRD_API int srd_register_callback(int output_type, srd_pd_output_callback_t cb); SRD_API void *srd_find_callback(int output_type); /*--- decoder.c -------------------------------------------------------------*/ SRD_API GSList *srd_list_decoders(void); SRD_API struct srd_decoder *srd_get_decoder_by_id(const char *id); SRD_API int srd_load_decoder(const char *name, struct srd_decoder **dec); SRD_API int srd_unload_decoder(struct srd_decoder *dec); SRD_API int srd_load_all_decoders(void); SRD_API int srd_unload_all_decoders(void); SRD_API char *srd_decoder_doc(struct srd_decoder *dec); /*--- log.c -----------------------------------------------------------------*/ typedef int (*srd_log_handler_t)(void *data, int loglevel, const char *format, va_list args); SRD_API int srd_log_loglevel_set(int loglevel); SRD_API int srd_log_loglevel_get(void); SRD_API int srd_log_handler_set(srd_log_handler_t handler, void *data); SRD_API int srd_log_handler_set_default(void); SRD_API int srd_log_logdomain_set(const char *logdomain); SRD_API char *srd_log_logdomain_get(void); #ifdef __cplusplus } #endif #endif