thodg/cgminer/A1-board-selector.h

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• Hash : c1657499
  Author :
  Date : 2014-04-22T11:26:18
  

  A1: modularize board selector / add initial CCR support

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• A1-board-selector.h

• #ifndef A1_BOARD_SELECTOR_H
  #define A1_BOARD_SELECTOR_H
  
  #include <stdbool.h>
  #include <stdint.h>
  
  #define RESET_LOW_TIME_MS 200
  #define RESET_HI_TIME_MS  100
  
  struct board_selector {
  	bool (*select)(uint8_t board);
  	void (*release)(void);
  	void (*exit)(void);
  	bool (*reset)(void);
  	bool (*reset_all)(void);
  	uint8_t (*get_temp)(void);
  };
  
  static bool dummy_select(uint8_t b) { (void)b; return true; }
  static void dummy_void(void) { };
  static bool dummy_bool(void) { return true; }
  static uint8_t dummy_u8(void) { return 0; }
  
  static const struct board_selector dummy_board_selector = {
  	.select = dummy_select,
  	.release = dummy_void,
  	.exit = dummy_void,
  	.reset = dummy_bool,
  	.reset_all = dummy_bool,
  	.get_temp = dummy_u8,
  };
  
  /* CoinCraft Desk and Rig board selector constructors */
  #define CCD_MAX_CHAINS	5
  #define CCR_MAX_CHAINS	16
  extern struct board_selector *ccd_board_selector_init(void);
  extern struct board_selector *ccr_board_selector_init(void);
  
  
  /* common i2c context */
  struct i2c_ctx {
  	uint8_t addr;
  	int file;
  };
  
  /* the default I2C bus on RPi */
  #define I2C_BUS		"/dev/i2c-1"
  
  extern bool i2c_slave_write(struct i2c_ctx *ctx, uint8_t reg, uint8_t val);
  extern bool i2c_slave_read(struct i2c_ctx *ctx, uint8_t reg, uint8_t *val);
  extern bool i2c_slave_open(struct i2c_ctx *ctx, char *i2c_bus);
  extern void i2c_slave_close(struct i2c_ctx *ctx);
  
  #endif /* A1_BOARD_SELECTOR_H */
  

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