drivers/sensors/pn532/pn532_bus.h

   1 /**************************************************************************/
   2 /*!
   3     @file     pn532_bus.h
   4 */
   5 /**************************************************************************/
   6
   7 #ifndef __PN532_BUS_H__
   8 #define __PN532_BUS_H__
   9
  10 #include "projectconfig.h"
  11 #include "pn532.h"
  12
  13 // #define PN532_BUS_UART
  14 #define PN532_BUS_I2C
  15
  16 #define PN532_RSTPD_PORT                      (3)
  17 #define PN532_RSTPD_PIN                       (1)
  18 #define PN532_I2C_IRQPORT                     (3)
  19 #define PN532_I2C_IRQPIN                      (2)
  20
  21 #define PN532_NORMAL_FRAME__DATA_MAX_LEN      (254)
  22 #define PN532_NORMAL_FRAME__OVERHEAD          (8)
  23 #define PN532_EXTENDED_FRAME__DATA_MAX_LEN    (264)
  24 #define PN532_EXTENDED_FRAME__OVERHEAD        (11)
  25 #define PN532_BUFFER_LEN                      (PN532_EXTENDED_FRAME__DATA_MAX_LEN + PN532_EXTENDED_FRAME__OVERHEAD)
  26
  27 #define PN532_UART_BAUDRATE                   (115200)
  28
  29 #define PN532_I2C_ADDRESS                     (0x48)
  30 #define PN532_I2C_READBIT                     (0x01)
  31 #define PN532_I2C_READYTIMEOUT                (20)    // Max number of attempts to read Ready bit (see UM 5-Nov-2007 Section 6.2.4)
  32
  33 // Generic interface for the different serial buses available on the PN532
  34 void          pn532_bus_HWInit(void);
  35 pn532_error_t pn532_bus_SendCommand(const byte_t * pbtData, const size_t szData);
  36 pn532_error_t pn532_bus_ReadResponse(byte_t * pbtResponse, size_t * pszRxLen);
  37 bool          pn532_bus_TransceiveBytes(const byte_t * pbtTx, const size_t szTx, byte_t * pbtRx, size_t * pszRx);
  38 pn532_error_t pn532_bus_Wakeup(void);
  39
  40 #endif