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Arduino/libraries/WiFi/utility/spi_drv.h
2012-09-13 10:20:48 -04:00

84 lines
2.3 KiB
C++

#ifndef SPI_Drv_h
#define SPI_Drv_h
#include <inttypes.h>
#include "wifi_spi.h"
#define SPI_START_CMD_DELAY 12
#define NO_LAST_PARAM 0
#define LAST_PARAM 1
#define DUMMY_DATA 0xFF
#define WAIT_FOR_SLAVE_SELECT() \
SpiDrv::waitForSlaveReady(); \
SpiDrv::spiSlaveSelect();
class SpiDrv
{
private:
//static bool waitSlaveReady();
static void waitForSlaveSign();
static void getParam(uint8_t* param);
public:
static void begin();
static void end();
static void spiDriverInit();
static void spiSlaveSelect();
static void spiSlaveDeselect();
static char spiTransfer(volatile char data);
static void waitForSlaveReady();
//static int waitSpiChar(char waitChar, char* readChar);
static int waitSpiChar(unsigned char waitChar);
static int readAndCheckChar(char checkChar, char* readChar);
static char readChar();
static int waitResponseParams(uint8_t cmd, uint8_t numParam, tParam* params);
static int waitResponseCmd(uint8_t cmd, uint8_t numParam, uint8_t* param, uint8_t* param_len);
static int waitResponseData8(uint8_t cmd, uint8_t* param, uint8_t* param_len);
static int waitResponseData16(uint8_t cmd, uint8_t* param, uint16_t* param_len);
/*
static int waitResponse(uint8_t cmd, tParam* params, uint8_t* numParamRead, uint8_t maxNumParams);
static int waitResponse(uint8_t cmd, uint8_t numParam, uint8_t* param, uint16_t* param_len);
*/
static int waitResponse(uint8_t cmd, uint8_t* numParamRead, uint8_t** params, uint8_t maxNumParams);
static void sendParam(uint8_t* param, uint8_t param_len, uint8_t lastParam = NO_LAST_PARAM);
static void sendParamLen8(uint8_t param_len);
static void sendParamLen16(uint16_t param_len);
static uint8_t readParamLen8(uint8_t* param_len = NULL);
static uint16_t readParamLen16(uint16_t* param_len = NULL);
static void sendBuffer(uint8_t* param, uint16_t param_len, uint8_t lastParam = NO_LAST_PARAM);
static void sendParam(uint16_t param, uint8_t lastParam = NO_LAST_PARAM);
static void sendCmd(uint8_t cmd, uint8_t numParam);
};
extern SpiDrv spiDrv;
#endif