nhal_spi_types.h

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#ifndef NHAL_SPI_TYPES_H
#define NHAL_SPI_TYPES_H
 
#include <stddef.h>
#include <stdint.h>
 
#include "nhal_common.h"
 
typedef uint8_t nhal_spi_bus_id;
 
 
typedef enum {
    NHAL_SPI_MODE_0 = 0,    
    NHAL_SPI_MODE_1,        
    NHAL_SPI_MODE_2,        
    NHAL_SPI_MODE_3,        
} nhal_spi_mode_t;
 
typedef enum {
    NHAL_SPI_BIT_ORDER_MSB_FIRST = 0,    
    NHAL_SPI_BIT_ORDER_LSB_FIRST,        
} nhal_spi_bit_order_t;
 
struct nhal_spi_config{
    uint32_t frequency_hz;
    nhal_spi_mode_t mode;
    nhal_spi_bit_order_t bit_order;
    struct nhal_spi_impl_config * impl_config;
};
 
 
struct nhal_spi_context{
    nhal_spi_bus_id spi_bus_id;
    uint32_t actual_frequency_hz;           
    struct nhal_spi_impl_ctx * impl_ctx;
 
    // Async extensions handled separately in async context
};
 
struct nhal_spi_daisy_device {
    const uint8_t *data;        
    size_t data_size;           
    uint8_t bits_per_device;    
};
 
struct nhal_spi_daisy_config{
    uint8_t num_devices;                    
    uint8_t bits_per_device;                
    struct nhal_spi_config basic_config;
};
 
struct nhal_spi_daisy_context{
    struct nhal_spi_context basic_ctx;
    uint8_t num_devices;                    
    uint8_t bits_per_device;                
    size_t total_chain_bits;                
};
 
#endif /* NHAL_SPI_TYPES_H */