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#ifndef SSC_H_
#define SSC_H_
#include "board.h"
#include "ssc_buffer.h"
typedef enum {
METRIC_RX_OVERFLOWS, // No free buffer during Rx reload
METRIC_FREE_RX_BUFFERS, // Free Rx buffers, calculated on-the-fly
METRIC_MANAGEMENT_ERRORS, // One of the diverse types of management errors
METRIC_MANAGEMENT_ERRORS_1, // Internal buffer management error type 1
METRIC_MANAGEMENT_ERRORS_2, // Internal buffer management error type 2
METRIC_MANAGEMENT_ERRORS_3, // Internal buffer management error type 3
_MAX_METRICS,
} ssc_metric;
extern int ssc_get_metric(ssc_metric metric, char **description, int *value);
typedef enum {
CALLBACK_RX_STARTED, // *data is ssh_handle_t *sh
CALLBACK_RX_STOPPED, // *data is ssh_handle_t *sh
CALLBACK_RX_FRAME_BEGIN, // *data is int *end_asserted
// may set *end_asserted = 1 to force tell the IRQ handler
// that you have detected the end of reception
CALLBACK_RX_FRAME_ENDED, // *data is ssc_dma_rx_buffer *buffer
CALLBACK_SETUP, // *data is ssh_handle_t *sh
CALLBACK_TEARDOWN, // *data is ssh_handle_t *sh
} ssc_callback_reason;
typedef void (*ssc_callback_t)(ssc_callback_reason reason, void *data);
enum ssc_clock_source {
CLOCK_SELECT_PLL,
CLOCK_SELECT_CARRIER,
_MAX_CLOCK_SOURCES,
};
struct _ssc_handle;
typedef struct _ssc_handle ssc_handle_t;
extern void ssc_select_clock(enum ssc_clock_source clock);
extern void ssc_frame_started(void);
/* Rx/Tx initialization separate, since Tx disables PWM output ! */
extern ssc_handle_t* ssc_open(u_int8_t init_rx, u_int8_t init_tx, enum ssc_mode mode , ssc_callback_t callback);
extern int ssc_recv(ssc_handle_t* sh, ssc_dma_rx_buffer_t* *buffer, unsigned int timeout);
extern int ssc_close(ssc_handle_t* sh);
extern void ssc_rx_stop_frame_ended(void);
#endif /*SSC_H_*/
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