include/minix/i2cdriver.h

   1 /* Prototypes and definitions for i2c drivers. */
   2
   3 #ifndef _MINIX_I2CDRIVER_H
   4 #define _MINIX_I2CDRIVER_H
   5
   6 #include <minix/endpoint.h>
   7 #include <minix/i2c.h>
   8 #include <minix/ipc.h>
   9
  10 /* Functions defined by i2cdriver.c: */
  11 int i2cdriver_env_parse(uint32_t * bus, i2c_addr_t * address,
  12                                                 i2c_addr_t * valid_addrs);
  13 void i2cdriver_announce(uint32_t bus);
  14 endpoint_t i2cdriver_bus_endpoint(uint32_t bus);
  15 int i2cdriver_subscribe_bus_updates(uint32_t bus);
  16 void i2cdriver_handle_bus_update(endpoint_t * bus_endpoint, uint32_t bus,
  17                                                         i2c_addr_t address);
  18 int i2cdriver_reserve_device(endpoint_t bus_endpoint, i2c_addr_t address);
  19 int i2cdriver_exec(endpoint_t bus_endpoint, minix_i2c_ioctl_exec_t *ioctl_exec);
  20
  21 int i2creg_raw_read8(endpoint_t bus, i2c_addr_t addr, uint8_t * val);
  22 int i2creg_read8(endpoint_t bus, i2c_addr_t addr, uint8_t reg, uint8_t * val);
  23 int i2creg_read16(endpoint_t bus, i2c_addr_t addr, uint8_t reg, uint16_t * val);
  24 int i2creg_read24(endpoint_t bus, i2c_addr_t addr, uint8_t reg, uint32_t * val);
  25 int i2creg_raw_write8(endpoint_t bus, i2c_addr_t addr, uint8_t val);
  26 int i2creg_write8(endpoint_t bus, i2c_addr_t addr, uint8_t reg, uint8_t val);
  27 int i2creg_set_bits8(endpoint_t bus, i2c_addr_t addr, uint8_t reg,
  28                                                                 uint8_t bits);
  29 int i2creg_clear_bits8(endpoint_t bus, i2c_addr_t addr, uint8_t reg,
  30                                                                 uint8_t bits);
  31
  32 #endif /* _MINIX_I2CDRIVER_H */