/**
* @brief Clear all the IT pending bits if any.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void stmpe1600_IO_ClearIT(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the register value to clear all pending bits */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
}
/**
* @brief Configure the IO pin(s) according to IO mode structure value.
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: The output pin to be set or reset. This parameter can be one
* of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 7.
* @param IO_Mode: The IO pin mode to configure, could be one of the following values:
* @arg IO_MODE_INPUT
* @arg IO_MODE_OUTPUT
* @arg IO_MODE_IT_RISING_EDGE
* @arg IO_MODE_IT_FALLING_EDGE
* @retval None
*/
void stmpe1600_IO_Config(uint16_t DeviceAddr, uint16_t IO_Pin, IO_ModeTypedef IO_Mode)
{
uint8_t buffer[2] = {0,0};
/* Configure IO pin according to selected IO mode */
switch(IO_Mode)
{
case IO_MODE_INPUT: /* Input mode */
stmpe1600_IO_DisablePinIT(DeviceAddr, IO_Pin);
stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
break;
case IO_MODE_OUTPUT: /* Output mode */
stmpe1600_IO_DisablePinIT(DeviceAddr, IO_Pin);
stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_OUT);
break;
case IO_MODE_IT_RISING_EDGE: /* Interrupt rising edge mode */
stmpe1600_SetITPolarity(DeviceAddr, STMPE1600_POLARITY_HIGH);
stmpe1600_IO_EnablePinIT(DeviceAddr, IO_Pin);
stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
/* Clear all IO IT pending bits if any */
stmpe1600_IO_ClearIT(DeviceAddr, IO_Pin);
/* Read GMPR to enable interrupt */
IOE_ReadMultiple(DeviceAddr , STMPE1600_REG_GPMR, buffer, 2);
break;
case IO_MODE_IT_FALLING_EDGE: /* Interrupt falling edge mode */
stmpe1600_SetITPolarity(DeviceAddr, STMPE1600_POLARITY_LOW);
stmpe1600_IO_EnablePinIT(DeviceAddr, IO_Pin);
stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
/* Clear all IO IT pending bits if any */
stmpe1600_IO_ClearIT(DeviceAddr, IO_Pin);
/* Read GMPR to enable interrupt */
IOE_ReadMultiple(DeviceAddr , STMPE1600_REG_GPMR, buffer, 2);
break;
default:
break;
}
}
/**
* @brief Detect an IT pending bit from the selected IO pin(s).
* (clears all the pending bits if any).
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be checked.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval IT pending bit detection status.
*/
uint8_t stmpe1600_IO_ReadIT(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Return if there is an IT pending bit or not */
return(tmp & IO_Pin);
}
/**
* @brief Read the IT status of the selected IO pin(s)
* (clears all the pending bits if any).
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be checked.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval IT Status of the selected IO pin(s).
*/
uint8_t stmpe1600_IO_ITStatus(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Return the pin IT status */
return((tmp & IO_Pin) == IO_Pin);
}
/**
* @brief Read the state of the selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be read.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval State of the selected IO pin(s).
*/
uint16_t stmpe1600_IO_ReadPin(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPMR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Return the pin(s) state */
return(tmp & IO_Pin);
}
/**
* @brief Read the stmpe1600 device ID.
* @param DeviceAddr: Device address on communication Bus.
* @retval The Device ID (two bytes).
*/
uint16_t stmpe1600_ReadID(uint16_t DeviceAddr)
{
uint8_t tmpData[2] = {0 , 0};
/* Initialize IO BUS layer */
IOE_Init();
/* Read the stmpe1600 device ID */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_CHP_ID, tmpData, 2);
/* Return the device ID value */
return((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
}
/**
* @brief Return if there is touch detected or not.
* @param DeviceAddr: Device address on communication Bus.
* @retval Touch detected state.
*/
uint8_t exc7200_TS_DetectTouch(uint16_t DeviceAddr)
{
/* Read TS data : Send I2C Slave address + 1 Bit0=1 for:read */
IOE_ReadMultiple(DeviceAddr | 1, EXC7200_READ_CMD, aBufferTS, 10);
/* check for first byte */
if (aBufferTS[1]==0x83)
{
return 1;
}
return 0;
}
/**
* @brief Disable the interrupt mode for the selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be configured.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval None
*/
void stmpe1600_IO_DisablePinIT(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Disable the IT pin mode */
tmp &= ~(uint16_t)IO_Pin;
/* Set the new register value */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, (uint8_t *)&tmp, 2);
}
/**
* @brief Disable polarity inversion of the selected IO pins.
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be configured.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval None
*/
void stmpe1600_IO_PolarityInv_Disable(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPPIR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Disable pin polarity inversion */
tmp &= ~ (uint16_t)IO_Pin;
/* Set the new register value */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPPIR, (uint8_t *)&tmp, 2);
}
/**
* @brief Disable the Global interrupt.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void stmpe1600_DisableGlobalIT(uint16_t DeviceAddr)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Set the global interrupts to be Enabled */
tmp &= ~(uint16_t)STMPE1600_IT_ENABLE;
/* Write Back the Interrupt Control register */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, (uint8_t *)&tmp, 2);
}
/**
* @brief Get the touch screen X and Y positions values
* @param DeviceAddr: Device address on communication Bus.
* @param X: Pointer to X position value
* @param Y: Pointer to Y position value
* @retval None.
*/
void ts3510_TS_GetXY(uint16_t DeviceAddr, uint16_t *X, uint16_t *Y)
{
uint8_t aBufferTS[11];
uint8_t aTmpBuffer[2] = {TS3510_READ_CMD, TS3510_WRITE_CMD};
/* Prepare for LCD read data */
IOE_WriteMultiple(DeviceAddr, TS3510_SEND_CMD_REG, aTmpBuffer, 2);
/* Read TS data from LCD */
IOE_ReadMultiple(DeviceAddr, TS3510_READ_BLOCK_REG, aBufferTS, 11);
/* Calculate positions */
*X = (((aBufferTS[1] << 8) | aBufferTS[2]) << 12) / 640;
*Y = (((aBufferTS[3] << 8) | aBufferTS[4]) << 12) / 480;
/* set position to be relative to 12bits resolution */
}
/**
* @brief Enable the interrupt mode for the selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be configured.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @retval None
*/
void stmpe1600_IO_EnablePinIT(uint16_t DeviceAddr, uint16_t IO_Pin)
{
uint8_t tmpData[2] = {0 , 0};
/* Enable global interrupt */
stmpe1600_EnableGlobalIT(DeviceAddr);
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Put pin in IT mode */
tmp |= (uint16_t)IO_Pin;
/* Write the new register value */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, (uint8_t *)&tmp, 2);
}
/**
* @brief Return if there is touch detected or not.
* @param DeviceAddr: Device address on communication Bus.
* @retval Touch detected state.
*/
uint8_t ts3510_TS_DetectTouch(uint16_t DeviceAddr)
{
uint8_t aBufferTS[11];
uint8_t aTmpBuffer[2] = {TS3510_READ_CMD, TS3510_WRITE_CMD};
/* Prepare for LCD read data */
IOE_WriteMultiple(DeviceAddr, TS3510_SEND_CMD_REG, aTmpBuffer, 2);
/* Read TS data from LCD */
IOE_ReadMultiple(DeviceAddr, TS3510_READ_BLOCK_REG, aBufferTS, 11);
/* check for first byte */
if((aBufferTS[1] == 0xFF) && (aBufferTS[2] == 0xFF) && (aBufferTS[3] == 0xFF) && (aBufferTS[4] == 0xFF))
{
return 0;
}
else
{
return 1;
}
}
/**
* @brief Set the value of the selected IO pins.
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be set.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @param PinState: The value to be set.
* @retval None
*/
void stmpe1600_IO_WritePin(uint16_t DeviceAddr, uint16_t IO_Pin, uint8_t PinState)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPMR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Set the pin state */
if(PinState != 0)
{
tmp |= (uint16_t)IO_Pin;
}
else
{
tmp &= ~(uint16_t)IO_Pin;
}
/* Set the new register value */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPSR, (uint8_t *)&tmp, 2);
}
/**
* @brief Initialize the selected pin(s) direction.
* @param DeviceAddr: Device address on communication Bus.
* @param IO_Pin: IO pin(s) to be configured.
* This parameter could be any combination of the following values:
* @arg STMPE1600_PIN_x: where x can be from 0 to 15.
* @param Direction: could be STMPE1600_DIRECTION_IN or STMPE1600_DIRECTION_OUT.
* @retval None
*/
void stmpe1600_IO_InitPin(uint16_t DeviceAddr, uint16_t IO_Pin, uint8_t Direction)
{
uint8_t tmpData[2] = {0 , 0};
/* Get the current register value */
IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPDR, tmpData, 2);
tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
/* Set the Pin direction */
if (Direction != STMPE1600_DIRECTION_IN)
{
tmp |= (uint16_t)IO_Pin;
}
else
{
tmp &= ~(uint16_t)IO_Pin;
}
/* Set the new register value */
IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPDR, (uint8_t *)&tmp, 2);
}
