avr/motor_ctrl/ringbuffer.h

   1 #ifndef RINGBUFFER_H
   2 #define RINGBUFFER_H
   3
   4 #define RINGBUFFER_LEN 100
   5 #define RINGBUFFER_MAX_NUM 1
   6
   7 typedef struct ringbuffer {
   8         char read[RINGBUFFER_LEN];
   9         char *in_read_ptr;
  10         char *out_read_ptr;
  11         char write[RINGBUFFER_LEN];
  12         char *in_write_ptr;
  13         char *out_write_ptr;
  14         FILE *dev;
  15         FILE *dev_in_as_out;
  16         uint8_t newlines;
  17         char block_read;
  18 } ringbuffer_t;
  19
  20 ringbuffer_t *ringbuffers[RINGBUFFER_MAX_NUM];
  21 uint8_t num_ringbuffers;
  22
  23 void ringbuffer_setup(FILE *stream, ringbuffer_t *buffer);
  24 void ringbuffer_setup_in_as_out(FILE *stream, ringbuffer_t *buffer);
  25 void init_ringbuffers(void);
  26 void stream_setup(FILE *uart_stream);
  27 void stream_setup_out_only(FILE *stream);
  28 void stream_setup_in_as_out(FILE *stream, int ringbuffer_putchar_sound(char, FILE*));
  29 uint8_t ringbuffer_busy(void);
  30 void ringbuffer_set_read_noblock(FILE *stream);
  31 void ringbuffer_set_read_block(FILE *stream, char c);
  32
  33 #endif
  34