nhal_common.h

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#ifndef NHAL_COMMON_H
#define NHAL_COMMON_H
 
#include <stdint.h>
 
typedef uint16_t nhal_timeout_ms;
 
typedef enum {
    NHAL_ASYNC_STATUS_IDLE,      
    NHAL_ASYNC_STATUS_BUSY,      
    NHAL_ASYNC_STATUS_COMPLETE,  
    NHAL_ASYNC_STATUS_ERROR      
} nhal_async_status_t;
 
struct nhal_async_config {
    struct nhal_async_impl_config * impl_config;  
};
 
typedef enum {
    NHAL_OK = 0,                         
    // Common argument/validation errors  
    NHAL_ERR_INVALID_ARG,                
    NHAL_ERR_INVALID_CONFIG,             
    NHAL_ERR_NOT_INITIALIZED,            
    NHAL_ERR_ALREADY_INITIALIZED,        
    NHAL_ERR_NOT_CONFIGURED,             
    // State errors
    NHAL_ERR_NOT_STARTED,                
    NHAL_ERR_ALREADY_STARTED,            
    NHAL_ERR_BUSY,                       
    // Operation errors
    NHAL_ERR_TIMEOUT,                    
    NHAL_ERR_HW_FAILURE,                 
    NHAL_ERR_UNSUPPORTED,                
    // Communication errors (generic)
    NHAL_ERR_NO_RESPONSE,                
    NHAL_ERR_TRANSMISSION_ERROR,         
    // Buffer/resource errors
    NHAL_ERR_BUFFER_FULL,                
    NHAL_ERR_BUFFER_OVERFLOW,            
    NHAL_ERR_OUT_OF_MEMORY,              
    // Catch-all
    NHAL_ERR_OTHER                       
} nhal_result_t;
 
// Common async operation types
typedef void (*nhal_async_complete_cb_t)(void *context);
 
void nhal_delay_microseconds(uint32_t microseconds);
 
void nhal_delay_milliseconds(uint32_t milliseconds);
 
uint64_t nhal_get_timestamp_microseconds(void);
 
uint32_t nhal_get_timestamp_milliseconds(void);
 
#endif