thodg/cgminer/i2c-context.h

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• Hash : 114f9fd2
  Author :
  Date : 2014-06-03T18:47:29
  

  A1: add support for updated product variants, small fixes
  
  This patch includes:
  * generalize I2C slave access
  * adapt CoinCraft Rig board selector to new design
  * add support for single chip chains
  * adapt verbosity levels
  * check for chip clocks below 100MHz
  

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• i2c-context.h

• #ifndef I2C_CONTEXT_H
  #define I2C_CONTEXT_H
  
  #include <stdbool.h>
  #include <stdint.h>
  
  /* common i2c context */
  struct i2c_ctx {
  	/* destructor */
  	void (*exit)(struct i2c_ctx *ctx);
  	/* write one byte to given register */
  	bool (*write)(struct i2c_ctx *ctx, uint8_t reg, uint8_t val);
  	/* read one byte from given register */
  	bool (*read)(struct i2c_ctx *ctx, uint8_t reg, uint8_t *val);
  
  	/* common data */
  	uint8_t addr;
  	int file;
  };
  
  /* the default I2C bus on RPi */
  #define I2C_BUS		"/dev/i2c-1"
  
  extern struct i2c_ctx *i2c_slave_open(char *i2c_bus, uint8_t slave_addr);
  
  #endif /* I2C_CONTEXT_H */
  

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