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52 lines
1.2 KiB
52 lines
1.2 KiB
8 years ago
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import os
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import subprocess
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from cffi import FFI
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can_dir = os.path.dirname(os.path.abspath(__file__))
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libdbc_fn = os.path.join(can_dir, "libdbc.so")
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subprocess.check_output(["make"], cwd=can_dir)
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ffi = FFI()
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ffi.cdef("""
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typedef struct SignalParseOptions {
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uint32_t address;
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const char* name;
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double default_value;
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} SignalParseOptions;
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typedef struct MessageParseOptions {
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uint32_t address;
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int check_frequency;
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} MessageParseOptions;
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typedef struct SignalValue {
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uint32_t address;
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uint16_t ts;
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const char* name;
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double value;
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} SignalValue;
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void* can_init(int bus, const char* dbc_name,
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size_t num_message_options, const MessageParseOptions* message_options,
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size_t num_signal_options, const SignalParseOptions* signal_options);
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void can_update(void* can, uint64_t sec, bool wait);
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size_t can_query(void* can, uint64_t sec, bool *out_can_valid, size_t out_values_size, SignalValue* out_values);
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typedef struct SignalPackValue {
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const char* name;
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double value;
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} SignalPackValue;
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void* canpack_init(const char* dbc_name);
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uint64_t canpack_pack(void* inst, uint32_t address, size_t num_vals, const SignalPackValue *vals);
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""")
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libdbc = ffi.dlopen(libdbc_fn)
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